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Sync to trunk r39350.
[reactos.git] / reactos / dll / win32 / comctl32 / treeview.c
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
37 *
38 * Make the insertion mark look right.
39 * Scroll (instead of repaint) as much as possible.
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <assert.h>
46 #include <ctype.h>
47 #include <stdarg.h>
48 #include <string.h>
49 #include <limits.h>
50 #include <stdlib.h>
51
52 #define NONAMELESSUNION
53 #define NONAMELESSSTRUCT
54 #include "windef.h"
55 #include "winbase.h"
56 #include "wingdi.h"
57 #include "winuser.h"
58 #include "winnls.h"
59 #include "commctrl.h"
60 #include "comctl32.h"
61 #include "uxtheme.h"
62 #include "tmschema.h"
63 #include "wine/unicode.h"
64 #include "wine/debug.h"
65
66 /* internal structures */
67
68 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
69 {
70 UINT callbackMask;
71 UINT state;
72 UINT stateMask;
73 LPWSTR pszText;
74 int cchTextMax;
75 int iImage;
76 int iSelectedImage;
77 int cChildren;
78 LPARAM lParam;
79 int iIntegral; /* item height multiplier (1 is normal) */
80 int iLevel; /* indentation level:0=root level */
81 HTREEITEM parent; /* handle to parent or 0 if at root */
82 HTREEITEM firstChild; /* handle to first child or 0 if no child */
83 HTREEITEM lastChild;
84 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
85 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
86 RECT rect;
87 LONG linesOffset;
88 LONG stateOffset;
89 LONG imageOffset;
90 LONG textOffset;
91 LONG textWidth; /* horizontal text extent for pszText */
92 LONG visibleOrder; /* visible ordering, 0 is first visible item */
93 } TREEVIEW_ITEM;
94
95
96 typedef struct tagTREEVIEW_INFO
97 {
98 HWND hwnd;
99 HWND hwndNotify; /* Owner window to send notifications to */
100 DWORD dwStyle;
101 HTREEITEM root;
102 UINT uInternalStatus;
103 INT Timer;
104 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
105 INT cdmode; /* last custom draw setting */
106 UINT uScrollTime; /* max. time for scrolling in milliseconds */
107 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
108
109 UINT uItemHeight; /* item height */
110 BOOL bHeightSet;
111
112 LONG clientWidth; /* width of control window */
113 LONG clientHeight; /* height of control window */
114
115 LONG treeWidth; /* width of visible tree items */
116 LONG treeHeight; /* height of visible tree items */
117
118 UINT uIndent; /* indentation in pixels */
119 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
120 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
121 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
122
123 HTREEITEM firstVisible; /* handle to first visible item */
124 LONG maxVisibleOrder;
125 HTREEITEM dropItem; /* handle to item selected by drag cursor */
126 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
127 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
128 HIMAGELIST dragList; /* Bitmap of dragged item */
129 LONG scrollX;
130 COLORREF clrBk;
131 COLORREF clrText;
132 COLORREF clrLine;
133 COLORREF clrInsertMark;
134 HFONT hFont;
135 HFONT hDefaultFont;
136 HFONT hBoldFont;
137 HFONT hUnderlineFont;
138 HCURSOR hcurHand;
139 HWND hwndToolTip;
140
141 HWND hwndEdit;
142 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
143 BOOL bIgnoreEditKillFocus;
144 BOOL bLabelChanged;
145
146 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
147 HIMAGELIST himlNormal;
148 int normalImageHeight;
149 int normalImageWidth;
150 HIMAGELIST himlState;
151 int stateImageHeight;
152 int stateImageWidth;
153 HDPA items;
154
155 DWORD lastKeyPressTimestamp; /* Added */
156 WPARAM charCode; /* Added */
157 INT nSearchParamLength; /* Added */
158 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
159 } TREEVIEW_INFO;
160
161
162 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
163 #define KEY_DELAY 450
164
165 /* bitflags for infoPtr->uInternalStatus */
166
167 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
168 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
169 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
170 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
171 #define TV_RDRAG 0x10 /* ditto Rbutton */
172 #define TV_RDRAGGING 0x20
173
174 /* bitflags for infoPtr->timer */
175
176 #define TV_EDIT_TIMER 2
177 #define TV_EDIT_TIMER_SET 2
178
179
180 VOID TREEVIEW_Register (VOID);
181 VOID TREEVIEW_Unregister (VOID);
182
183
184 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
185
186
187 #define TEXT_CALLBACK_SIZE 260
188
189 #define TREEVIEW_LEFT_MARGIN 8
190
191 #define MINIMUM_INDENT 19
192
193 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
194
195 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
196 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
197 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
198
199
200 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
201
202
203 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
204
205
206 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
207
208 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
209 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
210 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
211 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
212 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
213 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
214 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
215 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
216
217
218 /* Random Utilities *****************************************************/
219
220 #ifndef NDEBUG
221 static inline void
222 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
223 {
224 (void)infoPtr;
225 }
226 #else
227 /* The definition is at the end of the file. */
228 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
229 #endif
230
231 /* Returns the treeview private data if hwnd is a treeview.
232 * Otherwise returns an undefined value. */
233 static TREEVIEW_INFO *
234 TREEVIEW_GetInfoPtr(HWND hwnd)
235 {
236 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
237 }
238
239 /* Don't call this. Nothing wants an item index. */
240 static inline int
241 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
242 {
243 return DPA_GetPtrIndex(infoPtr->items, handle);
244 }
245
246 /* Checks if item has changed and needs to be redrawn */
247 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
248 const TVITEMEXW *tvChange)
249 {
250 /* Number of children has changed */
251 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
252 return TRUE;
253
254 /* Image has changed and it's not a callback */
255 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
256 tiNew->iImage != I_IMAGECALLBACK)
257 return TRUE;
258
259 /* Selected image has changed and it's not a callback */
260 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
261 tiNew->iSelectedImage != I_IMAGECALLBACK)
262 return TRUE;
263
264 /* Text has changed and it's not a callback */
265 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
266 tiNew->pszText != LPSTR_TEXTCALLBACKW)
267 return TRUE;
268
269 /* Indent has changed */
270 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
271 return TRUE;
272
273 /* Item state has changed */
274 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
275 return TRUE;
276
277 return FALSE;
278 }
279
280 /***************************************************************************
281 * This method checks that handle is an item for this tree.
282 */
283 static BOOL
284 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
285 {
286 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
287 {
288 TRACE("invalid item %p\n", handle);
289 return FALSE;
290 }
291 else
292 return TRUE;
293 }
294
295 static HFONT
296 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
297 {
298 LOGFONTW font;
299
300 GetObjectW(hOrigFont, sizeof(font), &font);
301 font.lfWeight = FW_BOLD;
302 return CreateFontIndirectW(&font);
303 }
304
305 static HFONT
306 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
307 {
308 LOGFONTW font;
309
310 GetObjectW(hOrigFont, sizeof(font), &font);
311 font.lfUnderline = TRUE;
312 return CreateFontIndirectW(&font);
313 }
314
315 static inline HFONT
316 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
317 {
318 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
319 return infoPtr->hUnderlineFont;
320 if (item->state & TVIS_BOLD)
321 return infoPtr->hBoldFont;
322 return infoPtr->hFont;
323 }
324
325 /* for trace/debugging purposes only */
326 static const char *
327 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
328 {
329 if (item == NULL) return "<null item>";
330 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
331 if (item->pszText == NULL) return "<null>";
332 return debugstr_w(item->pszText);
333 }
334
335 /* An item is not a child of itself. */
336 static BOOL
337 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
338 {
339 do
340 {
341 child = child->parent;
342 if (child == parent) return TRUE;
343 } while (child != NULL);
344
345 return FALSE;
346 }
347
348
349 /* Tree Traversal *******************************************************/
350
351 /***************************************************************************
352 * This method returns the last expanded sibling or child child item
353 * of a tree node
354 */
355 static TREEVIEW_ITEM *
356 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
357 {
358 if (!wineItem)
359 return NULL;
360
361 while (wineItem->lastChild)
362 {
363 if (wineItem->state & TVIS_EXPANDED)
364 wineItem = wineItem->lastChild;
365 else
366 break;
367 }
368
369 if (wineItem == infoPtr->root)
370 return NULL;
371
372 return wineItem;
373 }
374
375 /***************************************************************************
376 * This method returns the previous non-hidden item in the list not
377 * considering the tree hierarchy.
378 */
379 static TREEVIEW_ITEM *
380 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
381 {
382 if (tvItem->prevSibling)
383 {
384 /* This item has a prevSibling, get the last item in the sibling's tree. */
385 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
386
387 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
388 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
389 else
390 return upItem;
391 }
392 else
393 {
394 /* this item does not have a prevSibling, get the parent */
395 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
396 }
397 }
398
399
400 /***************************************************************************
401 * This method returns the next physical item in the treeview not
402 * considering the tree hierarchy.
403 */
404 static TREEVIEW_ITEM *
405 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
406 {
407 /*
408 * If this item has children and is expanded, return the first child
409 */
410 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
411 {
412 return tvItem->firstChild;
413 }
414
415
416 /*
417 * try to get the sibling
418 */
419 if (tvItem->nextSibling)
420 return tvItem->nextSibling;
421
422 /*
423 * Otherwise, get the parent's sibling.
424 */
425 while (tvItem->parent)
426 {
427 tvItem = tvItem->parent;
428
429 if (tvItem->nextSibling)
430 return tvItem->nextSibling;
431 }
432
433 return NULL;
434 }
435
436 /***************************************************************************
437 * This method returns the nth item starting at the given item. It returns
438 * the last item (or first) we we run out of items.
439 *
440 * Will scroll backward if count is <0.
441 * forward if count is >0.
442 */
443 static TREEVIEW_ITEM *
444 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
445 LONG count)
446 {
447 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
448 TREEVIEW_ITEM *previousItem;
449
450 assert(wineItem != NULL);
451
452 if (count > 0)
453 {
454 next_item = TREEVIEW_GetNextListItem;
455 }
456 else if (count < 0)
457 {
458 count = -count;
459 next_item = TREEVIEW_GetPrevListItem;
460 }
461 else
462 return wineItem;
463
464 do
465 {
466 previousItem = wineItem;
467 wineItem = next_item(infoPtr, wineItem);
468
469 } while (--count && wineItem != NULL);
470
471
472 return wineItem ? wineItem : previousItem;
473 }
474
475 /* Notifications ************************************************************/
476
477 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
478 {
479 if (!infoPtr->bNtfUnicode) {
480 switch (code) {
481 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
482 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
483 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
484 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
485 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
486 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
487 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
488 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
489 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
490 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
491 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
492 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
493 }
494 }
495 return code;
496 }
497
498 static LRESULT
499 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
500 {
501 TRACE("wParam=%ld, lParam=%ld\n", wParam, lParam);
502 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
503 }
504
505 static BOOL
506 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
507 {
508 NMHDR nmhdr;
509 HWND hwnd = infoPtr->hwnd;
510
511 TRACE("%d\n", code);
512 nmhdr.hwndFrom = hwnd;
513 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
514 nmhdr.code = get_notifycode(infoPtr, code);
515
516 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, (LPARAM)&nmhdr);
517 }
518
519 static VOID
520 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
521 {
522 tvItem->mask = mask;
523 tvItem->hItem = item;
524 tvItem->state = item->state;
525 tvItem->stateMask = 0;
526 tvItem->iImage = item->iImage;
527 tvItem->iSelectedImage = item->iSelectedImage;
528 tvItem->cChildren = item->cChildren;
529 tvItem->lParam = item->lParam;
530
531 if(mask & TVIF_TEXT)
532 {
533 if (!infoPtr->bNtfUnicode)
534 {
535 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
536 tvItem->pszText = Alloc (tvItem->cchTextMax);
537 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
538 }
539 else
540 {
541 tvItem->cchTextMax = item->cchTextMax;
542 tvItem->pszText = item->pszText;
543 }
544 }
545 else
546 {
547 tvItem->cchTextMax = 0;
548 tvItem->pszText = NULL;
549 }
550 }
551
552 static BOOL
553 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
554 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
555 {
556 HWND hwnd = infoPtr->hwnd;
557 NMTREEVIEWW nmhdr;
558 BOOL ret;
559
560 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
561 code, action, oldItem, newItem);
562
563 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
564
565 nmhdr.hdr.hwndFrom = hwnd;
566 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
567 nmhdr.hdr.code = get_notifycode(infoPtr, code);
568 nmhdr.action = action;
569
570 if (oldItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
572
573 if (newItem)
574 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
575
576 nmhdr.ptDrag.x = 0;
577 nmhdr.ptDrag.y = 0;
578
579 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
580 if (!infoPtr->bNtfUnicode)
581 {
582 Free(nmhdr.itemOld.pszText);
583 Free(nmhdr.itemNew.pszText);
584 }
585 return ret;
586 }
587
588 static BOOL
589 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
590 HTREEITEM dragItem, POINT pt)
591 {
592 HWND hwnd = infoPtr->hwnd;
593 NMTREEVIEWW nmhdr;
594
595 TRACE("code:%d dragitem:%p\n", code, dragItem);
596
597 nmhdr.hdr.hwndFrom = hwnd;
598 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
599 nmhdr.hdr.code = get_notifycode(infoPtr, code);
600 nmhdr.action = 0;
601 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
602 nmhdr.itemNew.hItem = dragItem;
603 nmhdr.itemNew.state = dragItem->state;
604 nmhdr.itemNew.lParam = dragItem->lParam;
605
606 nmhdr.ptDrag.x = pt.x;
607 nmhdr.ptDrag.y = pt.y;
608
609 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
610 }
611
612
613 static BOOL
614 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
615 HDC hdc, RECT rc)
616 {
617 HWND hwnd = infoPtr->hwnd;
618 NMTVCUSTOMDRAW nmcdhdr;
619 LPNMCUSTOMDRAW nmcd;
620
621 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
622
623 nmcd = &nmcdhdr.nmcd;
624 nmcd->hdr.hwndFrom = hwnd;
625 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
626 nmcd->hdr.code = NM_CUSTOMDRAW;
627 nmcd->dwDrawStage = dwDrawStage;
628 nmcd->hdc = hdc;
629 nmcd->rc = rc;
630 nmcd->dwItemSpec = 0;
631 nmcd->uItemState = 0;
632 nmcd->lItemlParam = 0;
633 nmcdhdr.clrText = infoPtr->clrText;
634 nmcdhdr.clrTextBk = infoPtr->clrBk;
635 nmcdhdr.iLevel = 0;
636
637 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)&nmcdhdr);
638 }
639
640
641
642 /* FIXME: need to find out when the flags in uItemState need to be set */
643
644 static BOOL
645 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
646 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
647 NMTVCUSTOMDRAW *nmcdhdr)
648 {
649 HWND hwnd = infoPtr->hwnd;
650 LPNMCUSTOMDRAW nmcd;
651 DWORD dwDrawStage;
652 DWORD_PTR dwItemSpec;
653 UINT uItemState;
654 INT retval;
655
656 dwDrawStage = CDDS_ITEM | uItemDrawState;
657 dwItemSpec = (DWORD_PTR)wineItem;
658 uItemState = 0;
659 if (wineItem->state & TVIS_SELECTED)
660 uItemState |= CDIS_SELECTED;
661 if (wineItem == infoPtr->selectedItem)
662 uItemState |= CDIS_FOCUS;
663 if (wineItem == infoPtr->hotItem)
664 uItemState |= CDIS_HOT;
665
666 nmcd = &nmcdhdr->nmcd;
667 nmcd->hdr.hwndFrom = hwnd;
668 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
669 nmcd->hdr.code = NM_CUSTOMDRAW;
670 nmcd->dwDrawStage = dwDrawStage;
671 nmcd->hdc = hdc;
672 nmcd->rc = wineItem->rect;
673 nmcd->dwItemSpec = dwItemSpec;
674 nmcd->uItemState = uItemState;
675 nmcd->lItemlParam = wineItem->lParam;
676 nmcdhdr->iLevel = wineItem->iLevel;
677
678 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
679 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
680 nmcd->uItemState, nmcd->lItemlParam);
681
682 retval = TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)nmcdhdr);
683
684 return retval;
685 }
686
687 static BOOL
688 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
689 {
690 HWND hwnd = infoPtr->hwnd;
691 NMTVDISPINFOW tvdi;
692 BOOL ret;
693
694 tvdi.hdr.hwndFrom = hwnd;
695 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
696 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
697
698 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
699 &tvdi.item, editItem);
700
701 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
702
703 if (!infoPtr->bNtfUnicode)
704 Free(tvdi.item.pszText);
705
706 return ret;
707 }
708
709 static void
710 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
711 UINT mask)
712 {
713 NMTVDISPINFOW callback;
714 HWND hwnd = infoPtr->hwnd;
715
716 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
717 mask &= wineItem->callbackMask;
718
719 if (mask == 0) return;
720
721 callback.hdr.hwndFrom = hwnd;
722 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
723 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
724
725 /* 'state' always contains valid value, as well as 'lParam'.
726 * All other parameters are uninitialized.
727 */
728 callback.item.pszText = wineItem->pszText;
729 callback.item.cchTextMax = wineItem->cchTextMax;
730 callback.item.mask = mask;
731 callback.item.hItem = wineItem;
732 callback.item.state = wineItem->state;
733 callback.item.lParam = wineItem->lParam;
734
735 /* If text is changed we need to recalculate textWidth */
736 if (mask & TVIF_TEXT)
737 wineItem->textWidth = 0;
738
739 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, (LPARAM)&callback);
740
741 /* It may have changed due to a call to SetItem. */
742 mask &= wineItem->callbackMask;
743
744 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
745 {
746 /* Instead of copying text into our buffer user specified its own */
747 if (!infoPtr->bNtfUnicode) {
748 LPWSTR newText;
749 int buflen;
750 int len = MultiByteToWideChar( CP_ACP, 0,
751 (LPSTR)callback.item.pszText, -1,
752 NULL, 0);
753 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
754 newText = ReAlloc(wineItem->pszText, buflen);
755
756 TRACE("returned str %s, len=%d, buflen=%d\n",
757 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
758
759 if (newText)
760 {
761 wineItem->pszText = newText;
762 MultiByteToWideChar( CP_ACP, 0,
763 (LPSTR)callback.item.pszText, -1,
764 wineItem->pszText, buflen/sizeof(WCHAR));
765 wineItem->cchTextMax = buflen/sizeof(WCHAR);
766 }
767 /* If ReAlloc fails we have nothing to do, but keep original text */
768 }
769 else {
770 int len = max(lstrlenW(callback.item.pszText) + 1,
771 TEXT_CALLBACK_SIZE);
772 LPWSTR newText = ReAlloc(wineItem->pszText, len);
773
774 TRACE("returned wstr %s, len=%d\n",
775 debugstr_w(callback.item.pszText), len);
776
777 if (newText)
778 {
779 wineItem->pszText = newText;
780 strcpyW(wineItem->pszText, callback.item.pszText);
781 wineItem->cchTextMax = len;
782 }
783 /* If ReAlloc fails we have nothing to do, but keep original text */
784 }
785 }
786 else if (mask & TVIF_TEXT) {
787 /* User put text into our buffer, that is ok unless A string */
788 if (!infoPtr->bNtfUnicode) {
789 LPWSTR newText;
790 LPWSTR oldText = NULL;
791 int buflen;
792 int len = MultiByteToWideChar( CP_ACP, 0,
793 (LPSTR)callback.item.pszText, -1,
794 NULL, 0);
795 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
796 newText = Alloc(buflen);
797
798 TRACE("same buffer str %s, len=%d, buflen=%d\n",
799 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
800
801 if (newText)
802 {
803 oldText = wineItem->pszText;
804 wineItem->pszText = newText;
805 MultiByteToWideChar( CP_ACP, 0,
806 (LPSTR)callback.item.pszText, -1,
807 wineItem->pszText, buflen/sizeof(WCHAR));
808 wineItem->cchTextMax = buflen/sizeof(WCHAR);
809 Free(oldText);
810 }
811 }
812 }
813
814 if (mask & TVIF_IMAGE)
815 wineItem->iImage = callback.item.iImage;
816
817 if (mask & TVIF_SELECTEDIMAGE)
818 wineItem->iSelectedImage = callback.item.iSelectedImage;
819
820 if (mask & TVIF_CHILDREN)
821 wineItem->cChildren = callback.item.cChildren;
822
823 /* These members are now permanently set. */
824 if (callback.item.mask & TVIF_DI_SETITEM)
825 wineItem->callbackMask &= ~callback.item.mask;
826 }
827
828 /***************************************************************************
829 * This function uses cChildren field to decide whether the item has
830 * children or not.
831 * Note: if this returns TRUE, the child items may not actually exist,
832 * they could be virtual.
833 *
834 * Just use wineItem->firstChild to check for physical children.
835 */
836 static BOOL
837 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
838 {
839 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
840
841 return wineItem->cChildren > 0;
842 }
843
844
845 /* Item Position ********************************************************/
846
847 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
848 static VOID
849 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
850 {
851 /* Same effect, different optimisation. */
852 #if 0
853 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
854 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
855 #else
856 BOOL lar = ((infoPtr->dwStyle
857 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
858 > TVS_LINESATROOT);
859 #endif
860
861 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
862 - infoPtr->scrollX;
863 item->stateOffset = item->linesOffset + infoPtr->uIndent;
864 item->imageOffset = item->stateOffset
865 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
866 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
867 }
868
869 static VOID
870 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
871 {
872 HDC hdc;
873 HFONT hOldFont=0;
874 SIZE sz;
875
876 /* DRAW's OM docker creates items like this */
877 if (item->pszText == NULL)
878 {
879 item->textWidth = 0;
880 return;
881 }
882
883 if (hDC != 0)
884 {
885 hdc = hDC;
886 }
887 else
888 {
889 hdc = GetDC(infoPtr->hwnd);
890 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
891 }
892
893 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
894 item->textWidth = sz.cx;
895
896 if (hDC == 0)
897 {
898 SelectObject(hdc, hOldFont);
899 ReleaseDC(0, hdc);
900 }
901 }
902
903 static VOID
904 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
905 {
906 item->rect.top = infoPtr->uItemHeight *
907 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
908
909 item->rect.bottom = item->rect.top
910 + infoPtr->uItemHeight * item->iIntegral - 1;
911
912 item->rect.left = 0;
913 item->rect.right = infoPtr->clientWidth;
914 }
915
916 /* We know that only items after start need their order updated. */
917 static void
918 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
919 {
920 TREEVIEW_ITEM *item;
921 int order;
922
923 if (!start)
924 {
925 start = infoPtr->root->firstChild;
926 order = 0;
927 }
928 else
929 order = start->visibleOrder;
930
931 for (item = start; item != NULL;
932 item = TREEVIEW_GetNextListItem(infoPtr, item))
933 {
934 if (!ISVISIBLE(item) && order > 0)
935 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
936 item->visibleOrder = order;
937 order += item->iIntegral;
938 }
939
940 infoPtr->maxVisibleOrder = order;
941
942 for (item = start; item != NULL;
943 item = TREEVIEW_GetNextListItem(infoPtr, item))
944 {
945 TREEVIEW_ComputeItemRect(infoPtr, item);
946 }
947 }
948
949
950 /* Update metrics of all items in selected subtree.
951 * root must be expanded
952 */
953 static VOID
954 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
955 {
956 TREEVIEW_ITEM *sibling;
957 HDC hdc;
958 HFONT hOldFont;
959
960 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
961 return;
962
963 root->state &= ~TVIS_EXPANDED;
964 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
965 root->state |= TVIS_EXPANDED;
966
967 hdc = GetDC(infoPtr->hwnd);
968 hOldFont = SelectObject(hdc, infoPtr->hFont);
969
970 for (; root != sibling;
971 root = TREEVIEW_GetNextListItem(infoPtr, root))
972 {
973 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
974
975 if (root->callbackMask & TVIF_TEXT)
976 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
977
978 if (root->textWidth == 0)
979 {
980 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
981 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
982 }
983 }
984
985 SelectObject(hdc, hOldFont);
986 ReleaseDC(infoPtr->hwnd, hdc);
987 }
988
989 /* Item Allocation **********************************************************/
990
991 static TREEVIEW_ITEM *
992 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
993 {
994 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
995
996 if (!newItem)
997 return NULL;
998
999 /* I_IMAGENONE would make more sense but this is neither what is
1000 * documented (MSDN doesn't specify) nor what Windows actually does
1001 * (it sets it to zero)... and I can so imagine an application using
1002 * inc/dec to toggle the images. */
1003 newItem->iImage = 0;
1004 newItem->iSelectedImage = 0;
1005
1006 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1007 {
1008 Free(newItem);
1009 return NULL;
1010 }
1011
1012 return newItem;
1013 }
1014
1015 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1016 * free item->pszText. */
1017 static void
1018 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1019 {
1020 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1021 if (infoPtr->selectedItem == item)
1022 infoPtr->selectedItem = NULL;
1023 if (infoPtr->hotItem == item)
1024 infoPtr->hotItem = NULL;
1025 if (infoPtr->focusedItem == item)
1026 infoPtr->focusedItem = NULL;
1027 if (infoPtr->firstVisible == item)
1028 infoPtr->firstVisible = NULL;
1029 if (infoPtr->dropItem == item)
1030 infoPtr->dropItem = NULL;
1031 if (infoPtr->insertMarkItem == item)
1032 infoPtr->insertMarkItem = NULL;
1033 Free(item);
1034 }
1035
1036
1037 /* Item Insertion *******************************************************/
1038
1039 /***************************************************************************
1040 * This method inserts newItem before sibling as a child of parent.
1041 * sibling can be NULL, but only if parent has no children.
1042 */
1043 static void
1044 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1045 TREEVIEW_ITEM *parent)
1046 {
1047 assert(parent != NULL);
1048
1049 if (sibling != NULL)
1050 {
1051 assert(sibling->parent == parent);
1052
1053 if (sibling->prevSibling != NULL)
1054 sibling->prevSibling->nextSibling = newItem;
1055
1056 newItem->prevSibling = sibling->prevSibling;
1057 sibling->prevSibling = newItem;
1058 }
1059 else
1060 newItem->prevSibling = NULL;
1061
1062 newItem->nextSibling = sibling;
1063
1064 if (parent->firstChild == sibling)
1065 parent->firstChild = newItem;
1066
1067 if (parent->lastChild == NULL)
1068 parent->lastChild = newItem;
1069 }
1070
1071 /***************************************************************************
1072 * This method inserts newItem after sibling as a child of parent.
1073 * sibling can be NULL, but only if parent has no children.
1074 */
1075 static void
1076 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1077 TREEVIEW_ITEM *parent)
1078 {
1079 assert(parent != NULL);
1080
1081 if (sibling != NULL)
1082 {
1083 assert(sibling->parent == parent);
1084
1085 if (sibling->nextSibling != NULL)
1086 sibling->nextSibling->prevSibling = newItem;
1087
1088 newItem->nextSibling = sibling->nextSibling;
1089 sibling->nextSibling = newItem;
1090 }
1091 else
1092 newItem->nextSibling = NULL;
1093
1094 newItem->prevSibling = sibling;
1095
1096 if (parent->lastChild == sibling)
1097 parent->lastChild = newItem;
1098
1099 if (parent->firstChild == NULL)
1100 parent->firstChild = newItem;
1101 }
1102
1103 static BOOL
1104 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1105 const TVITEMEXW *tvItem, BOOL isW)
1106 {
1107 UINT callbackClear = 0;
1108 UINT callbackSet = 0;
1109
1110 TRACE("item %p\n", wineItem);
1111 /* Do this first in case it fails. */
1112 if (tvItem->mask & TVIF_TEXT)
1113 {
1114 wineItem->textWidth = 0; /* force width recalculation */
1115 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1116 {
1117 int len;
1118 LPWSTR newText;
1119 if (isW)
1120 len = lstrlenW(tvItem->pszText) + 1;
1121 else
1122 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1123
1124 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1125
1126 if (newText == NULL) return FALSE;
1127
1128 callbackClear |= TVIF_TEXT;
1129
1130 wineItem->pszText = newText;
1131 wineItem->cchTextMax = len;
1132 if (isW)
1133 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1134 else
1135 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1136 wineItem->pszText, len);
1137
1138 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1139 }
1140 else
1141 {
1142 callbackSet |= TVIF_TEXT;
1143
1144 wineItem->pszText = ReAlloc(wineItem->pszText,
1145 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1146 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1147 TRACE("setting callback, item %p\n", wineItem);
1148 }
1149 }
1150
1151 if (tvItem->mask & TVIF_CHILDREN)
1152 {
1153 wineItem->cChildren = tvItem->cChildren;
1154
1155 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1156 callbackSet |= TVIF_CHILDREN;
1157 else
1158 callbackClear |= TVIF_CHILDREN;
1159 }
1160
1161 if (tvItem->mask & TVIF_IMAGE)
1162 {
1163 wineItem->iImage = tvItem->iImage;
1164
1165 if (wineItem->iImage == I_IMAGECALLBACK)
1166 callbackSet |= TVIF_IMAGE;
1167 else
1168 callbackClear |= TVIF_IMAGE;
1169 }
1170
1171 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1172 {
1173 wineItem->iSelectedImage = tvItem->iSelectedImage;
1174
1175 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1176 callbackSet |= TVIF_SELECTEDIMAGE;
1177 else
1178 callbackClear |= TVIF_SELECTEDIMAGE;
1179 }
1180
1181 if (tvItem->mask & TVIF_PARAM)
1182 wineItem->lParam = tvItem->lParam;
1183
1184 /* If the application sets TVIF_INTEGRAL without
1185 * supplying a TVITEMEX structure, it's toast. */
1186 if (tvItem->mask & TVIF_INTEGRAL)
1187 wineItem->iIntegral = tvItem->iIntegral;
1188
1189 if (tvItem->mask & TVIF_STATE)
1190 {
1191 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1192 tvItem->stateMask);
1193 wineItem->state &= ~tvItem->stateMask;
1194 wineItem->state |= (tvItem->state & tvItem->stateMask);
1195 }
1196
1197 wineItem->callbackMask |= callbackSet;
1198 wineItem->callbackMask &= ~callbackClear;
1199
1200 return TRUE;
1201 }
1202
1203 /* Note that the new item is pre-zeroed. */
1204 static LRESULT
1205 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1206 {
1207 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1208 HTREEITEM insertAfter;
1209 TREEVIEW_ITEM *newItem, *parentItem;
1210 BOOL bTextUpdated = FALSE;
1211
1212 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1213 {
1214 parentItem = infoPtr->root;
1215 }
1216 else
1217 {
1218 parentItem = ptdi->hParent;
1219
1220 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1221 {
1222 WARN("invalid parent %p\n", parentItem);
1223 return 0;
1224 }
1225 }
1226
1227 insertAfter = ptdi->hInsertAfter;
1228
1229 /* Validate this now for convenience. */
1230 switch ((DWORD_PTR)insertAfter)
1231 {
1232 case (DWORD_PTR)TVI_FIRST:
1233 case (DWORD_PTR)TVI_LAST:
1234 case (DWORD_PTR)TVI_SORT:
1235 break;
1236
1237 default:
1238 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1239 insertAfter->parent != parentItem)
1240 {
1241 WARN("invalid insert after %p\n", insertAfter);
1242 insertAfter = TVI_LAST;
1243 }
1244 }
1245
1246 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1247 (tvItem->mask & TVIF_TEXT)
1248 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1249 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1250 : "<no label>");
1251
1252 newItem = TREEVIEW_AllocateItem(infoPtr);
1253 if (newItem == NULL)
1254 return 0;
1255
1256 newItem->parent = parentItem;
1257 newItem->iIntegral = 1;
1258
1259 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1260 return 0;
1261
1262 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1263
1264 infoPtr->uNumItems++;
1265
1266 switch ((DWORD_PTR)insertAfter)
1267 {
1268 case (DWORD_PTR)TVI_FIRST:
1269 {
1270 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1271 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1272 if (infoPtr->firstVisible == originalFirst)
1273 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1274 }
1275 break;
1276
1277 case (DWORD_PTR)TVI_LAST:
1278 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1279 break;
1280
1281 /* hInsertAfter names a specific item we want to insert after */
1282 default:
1283 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1284 break;
1285
1286 case (DWORD_PTR)TVI_SORT:
1287 {
1288 TREEVIEW_ITEM *aChild;
1289 TREEVIEW_ITEM *previousChild = NULL;
1290 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1291 BOOL bItemInserted = FALSE;
1292
1293 aChild = parentItem->firstChild;
1294
1295 bTextUpdated = TRUE;
1296 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1297
1298 /* Iterate the parent children to see where we fit in */
1299 while (aChild != NULL)
1300 {
1301 INT comp;
1302
1303 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1304 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1305
1306 if (comp < 0) /* we are smaller than the current one */
1307 {
1308 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1309 if (infoPtr->firstVisible == originalFirst &&
1310 aChild == originalFirst)
1311 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1312 bItemInserted = TRUE;
1313 break;
1314 }
1315 else if (comp > 0) /* we are bigger than the current one */
1316 {
1317 previousChild = aChild;
1318
1319 /* This will help us to exit if there is no more sibling */
1320 aChild = (aChild->nextSibling == 0)
1321 ? NULL
1322 : aChild->nextSibling;
1323
1324 /* Look at the next item */
1325 continue;
1326 }
1327 else if (comp == 0)
1328 {
1329 /*
1330 * An item with this name is already existing, therefore,
1331 * we add after the one we found
1332 */
1333 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1334 bItemInserted = TRUE;
1335 break;
1336 }
1337 }
1338
1339 /*
1340 * we reach the end of the child list and the item has not
1341 * yet been inserted, therefore, insert it after the last child.
1342 */
1343 if ((!bItemInserted) && (aChild == NULL))
1344 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1345
1346 break;
1347 }
1348 }
1349
1350
1351 TRACE("new item %p; parent %p, mask %x\n", newItem,
1352 newItem->parent, tvItem->mask);
1353
1354 newItem->iLevel = newItem->parent->iLevel + 1;
1355
1356 if (newItem->parent->cChildren == 0)
1357 newItem->parent->cChildren = 1;
1358
1359 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1360 {
1361 if (STATEIMAGEINDEX(newItem->state) == 0)
1362 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1363 }
1364
1365 if (infoPtr->firstVisible == NULL)
1366 infoPtr->firstVisible = newItem;
1367
1368 TREEVIEW_VerifyTree(infoPtr);
1369
1370 if (parentItem == infoPtr->root ||
1371 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1372 {
1373 TREEVIEW_ITEM *item;
1374 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1375
1376 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1377 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1378
1379 if (!bTextUpdated)
1380 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1381
1382 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1383 TREEVIEW_UpdateScrollBars(infoPtr);
1384 /*
1385 * if the item was inserted in a visible part of the tree,
1386 * invalidate it, as well as those after it
1387 */
1388 for (item = newItem;
1389 item != NULL;
1390 item = TREEVIEW_GetNextListItem(infoPtr, item))
1391 TREEVIEW_Invalidate(infoPtr, item);
1392 }
1393 else
1394 {
1395 newItem->visibleOrder = -1;
1396
1397 /* refresh treeview if newItem is the first item inserted under parentItem */
1398 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1399 {
1400 /* parent got '+' - update it */
1401 TREEVIEW_Invalidate(infoPtr, parentItem);
1402 }
1403 }
1404
1405 return (LRESULT)newItem;
1406 }
1407
1408 /* Item Deletion ************************************************************/
1409 static void
1410 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1411
1412 static void
1413 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1414 {
1415 TREEVIEW_ITEM *kill = parentItem->firstChild;
1416
1417 while (kill != NULL)
1418 {
1419 TREEVIEW_ITEM *next = kill->nextSibling;
1420
1421 TREEVIEW_RemoveItem(infoPtr, kill);
1422
1423 kill = next;
1424 }
1425
1426 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1427 assert(parentItem->firstChild == NULL);
1428 assert(parentItem->lastChild == NULL);
1429 }
1430
1431 static void
1432 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1433 {
1434 TREEVIEW_ITEM *parentItem = item->parent;
1435
1436 assert(item != NULL);
1437 assert(item->parent != NULL); /* i.e. it must not be the root */
1438
1439 if (parentItem->firstChild == item)
1440 parentItem->firstChild = item->nextSibling;
1441
1442 if (parentItem->lastChild == item)
1443 parentItem->lastChild = item->prevSibling;
1444
1445 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1446 && parentItem->cChildren > 0)
1447 parentItem->cChildren = 0;
1448
1449 if (item->prevSibling)
1450 item->prevSibling->nextSibling = item->nextSibling;
1451
1452 if (item->nextSibling)
1453 item->nextSibling->prevSibling = item->prevSibling;
1454 }
1455
1456 static void
1457 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1458 {
1459 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1460
1461 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1462 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1463
1464 if (wineItem->firstChild)
1465 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1466
1467 TREEVIEW_UnlinkItem(wineItem);
1468
1469 infoPtr->uNumItems--;
1470
1471 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1472 Free(wineItem->pszText);
1473
1474 TREEVIEW_FreeItem(infoPtr, wineItem);
1475 }
1476
1477
1478 /* Empty out the tree. */
1479 static void
1480 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1481 {
1482 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1483
1484 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1485 }
1486
1487 static LRESULT
1488 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1489 {
1490 TREEVIEW_ITEM *newSelection = NULL;
1491 TREEVIEW_ITEM *newFirstVisible = NULL;
1492 TREEVIEW_ITEM *parent, *prev = NULL;
1493 BOOL visible = FALSE;
1494
1495 if (wineItem == TVI_ROOT)
1496 {
1497 TRACE("TVI_ROOT\n");
1498 parent = infoPtr->root;
1499 newSelection = NULL;
1500 visible = TRUE;
1501 TREEVIEW_RemoveTree(infoPtr);
1502 }
1503 else
1504 {
1505 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1506 return FALSE;
1507
1508 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1509 parent = wineItem->parent;
1510
1511 if (ISVISIBLE(wineItem))
1512 {
1513 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1514 visible = TRUE;
1515 }
1516
1517 if (infoPtr->selectedItem != NULL
1518 && (wineItem == infoPtr->selectedItem
1519 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1520 {
1521 if (wineItem->nextSibling)
1522 newSelection = wineItem->nextSibling;
1523 else if (wineItem->parent != infoPtr->root)
1524 newSelection = wineItem->parent;
1525 else
1526 newSelection = wineItem->prevSibling;
1527 TRACE("newSelection = %p\n", newSelection);
1528 }
1529
1530 if (infoPtr->firstVisible == wineItem)
1531 {
1532 if (wineItem->nextSibling)
1533 newFirstVisible = wineItem->nextSibling;
1534 else if (wineItem->prevSibling)
1535 newFirstVisible = wineItem->prevSibling;
1536 else if (wineItem->parent != infoPtr->root)
1537 newFirstVisible = wineItem->parent;
1538 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1539 }
1540 else
1541 newFirstVisible = infoPtr->firstVisible;
1542
1543 TREEVIEW_RemoveItem(infoPtr, wineItem);
1544 }
1545
1546 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1547 if (!infoPtr->selectedItem && newSelection)
1548 {
1549 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1550 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1551 }
1552
1553 /* Validate insertMark dropItem.
1554 * hotItem ??? - used for comparison only.
1555 */
1556 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1557 infoPtr->insertMarkItem = 0;
1558
1559 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1560 infoPtr->dropItem = 0;
1561
1562 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1563 newFirstVisible = infoPtr->root->firstChild;
1564
1565 TREEVIEW_VerifyTree(infoPtr);
1566
1567
1568 if (visible)
1569 {
1570 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1571 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1572 TREEVIEW_UpdateScrollBars(infoPtr);
1573 TREEVIEW_Invalidate(infoPtr, NULL);
1574 }
1575 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1576 {
1577 /* parent lost '+/-' - update it */
1578 TREEVIEW_Invalidate(infoPtr, parent);
1579 }
1580
1581 return TRUE;
1582 }
1583
1584
1585 /* Get/Set Messages *********************************************************/
1586 static LRESULT
1587 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1588 {
1589 if(wParam)
1590 infoPtr->bRedraw = TRUE;
1591 else
1592 infoPtr->bRedraw = FALSE;
1593
1594 return 0;
1595 }
1596
1597 static LRESULT
1598 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1599 {
1600 TRACE("\n");
1601 return infoPtr->uIndent;
1602 }
1603
1604 static LRESULT
1605 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1606 {
1607 TRACE("\n");
1608
1609 if (newIndent < MINIMUM_INDENT)
1610 newIndent = MINIMUM_INDENT;
1611
1612 if (infoPtr->uIndent != newIndent)
1613 {
1614 infoPtr->uIndent = newIndent;
1615 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1616 TREEVIEW_UpdateScrollBars(infoPtr);
1617 TREEVIEW_Invalidate(infoPtr, NULL);
1618 }
1619
1620 return 0;
1621 }
1622
1623
1624 static LRESULT
1625 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1626 {
1627 TRACE("\n");
1628 return (LRESULT)infoPtr->hwndToolTip;
1629 }
1630
1631 static LRESULT
1632 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1633 {
1634 HWND prevToolTip;
1635
1636 TRACE("\n");
1637 prevToolTip = infoPtr->hwndToolTip;
1638 infoPtr->hwndToolTip = hwndTT;
1639
1640 return (LRESULT)prevToolTip;
1641 }
1642
1643 static LRESULT
1644 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1645 {
1646 BOOL rc = infoPtr->bNtfUnicode;
1647 infoPtr->bNtfUnicode = fUnicode;
1648 return rc;
1649 }
1650
1651 static LRESULT
1652 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1653 {
1654 return infoPtr->bNtfUnicode;
1655 }
1656
1657 static LRESULT
1658 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1659 {
1660 return infoPtr->uScrollTime;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1665 {
1666 UINT uOldScrollTime = infoPtr->uScrollTime;
1667
1668 infoPtr->uScrollTime = min(uScrollTime, 100);
1669
1670 return uOldScrollTime;
1671 }
1672
1673
1674 static LRESULT
1675 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1676 {
1677 TRACE("\n");
1678
1679 switch (wParam)
1680 {
1681 case (WPARAM)TVSIL_NORMAL:
1682 return (LRESULT)infoPtr->himlNormal;
1683
1684 case (WPARAM)TVSIL_STATE:
1685 return (LRESULT)infoPtr->himlState;
1686
1687 default:
1688 return 0;
1689 }
1690 }
1691
1692 #define TVHEIGHT_MIN 16
1693 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1694
1695 /* Compute the natural height for items. */
1696 static UINT
1697 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1698 {
1699 TEXTMETRICW tm;
1700 HDC hdc = GetDC(0);
1701 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1702 UINT height;
1703
1704 /* Height is the maximum of:
1705 * 16 (a hack because our fonts are tiny), and
1706 * The text height + border & margin, and
1707 * The size of the normal image list
1708 */
1709 GetTextMetricsW(hdc, &tm);
1710 SelectObject(hdc, hOldFont);
1711 ReleaseDC(0, hdc);
1712
1713 height = TVHEIGHT_MIN;
1714 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1715 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1716 if (height < infoPtr->normalImageHeight)
1717 height = infoPtr->normalImageHeight;
1718
1719 /* Round down, unless we support odd ("non even") heights. */
1720 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1721 height &= ~1;
1722
1723 return height;
1724 }
1725
1726 static LRESULT
1727 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1728 {
1729 HIMAGELIST himlOld = 0;
1730 int oldWidth = infoPtr->normalImageWidth;
1731 int oldHeight = infoPtr->normalImageHeight;
1732
1733
1734 TRACE("%lx,%p\n", wParam, himlNew);
1735
1736 switch (wParam)
1737 {
1738 case (WPARAM)TVSIL_NORMAL:
1739 himlOld = infoPtr->himlNormal;
1740 infoPtr->himlNormal = himlNew;
1741
1742 if (himlNew != NULL)
1743 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1744 &infoPtr->normalImageHeight);
1745 else
1746 {
1747 infoPtr->normalImageWidth = 0;
1748 infoPtr->normalImageHeight = 0;
1749 }
1750
1751 break;
1752
1753 case (WPARAM)TVSIL_STATE:
1754 himlOld = infoPtr->himlState;
1755 infoPtr->himlState = himlNew;
1756
1757 if (himlNew != NULL)
1758 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1759 &infoPtr->stateImageHeight);
1760 else
1761 {
1762 infoPtr->stateImageWidth = 0;
1763 infoPtr->stateImageHeight = 0;
1764 }
1765
1766 break;
1767 }
1768
1769 if (oldWidth != infoPtr->normalImageWidth ||
1770 oldHeight != infoPtr->normalImageHeight)
1771 {
1772 BOOL bRecalcVisible = FALSE;
1773
1774 if (oldHeight != infoPtr->normalImageHeight &&
1775 !infoPtr->bHeightSet)
1776 {
1777 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1778 bRecalcVisible = TRUE;
1779 }
1780
1781 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1782 infoPtr->normalImageWidth != infoPtr->uIndent)
1783 {
1784 infoPtr->uIndent = infoPtr->normalImageWidth;
1785 bRecalcVisible = TRUE;
1786 }
1787
1788 if (bRecalcVisible)
1789 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1790
1791 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1792 TREEVIEW_UpdateScrollBars(infoPtr);
1793 }
1794
1795 TREEVIEW_Invalidate(infoPtr, NULL);
1796
1797 return (LRESULT)himlOld;
1798 }
1799
1800 static LRESULT
1801 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1802 {
1803 INT prevHeight = infoPtr->uItemHeight;
1804
1805 TRACE("%d\n", newHeight);
1806 if (newHeight == -1)
1807 {
1808 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1809 infoPtr->bHeightSet = FALSE;
1810 }
1811 else
1812 {
1813 infoPtr->uItemHeight = newHeight;
1814 infoPtr->bHeightSet = TRUE;
1815 }
1816
1817 /* Round down, unless we support odd ("non even") heights. */
1818 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1819 infoPtr->uItemHeight &= ~1;
1820
1821 if (infoPtr->uItemHeight != prevHeight)
1822 {
1823 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1824 TREEVIEW_UpdateScrollBars(infoPtr);
1825 TREEVIEW_Invalidate(infoPtr, NULL);
1826 }
1827
1828 return prevHeight;
1829 }
1830
1831 static LRESULT
1832 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1833 {
1834 TRACE("\n");
1835 return infoPtr->uItemHeight;
1836 }
1837
1838
1839 static LRESULT
1840 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1841 {
1842 TRACE("%p\n", infoPtr->hFont);
1843 return (LRESULT)infoPtr->hFont;
1844 }
1845
1846
1847 static INT CALLBACK
1848 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1849 {
1850 (void)unused;
1851
1852 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1853
1854 return 1;
1855 }
1856
1857 static LRESULT
1858 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1859 {
1860 UINT uHeight = infoPtr->uItemHeight;
1861
1862 TRACE("%p %i\n", hFont, bRedraw);
1863
1864 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1865
1866 DeleteObject(infoPtr->hBoldFont);
1867 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1868 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1869
1870 if (!infoPtr->bHeightSet)
1871 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1872
1873 if (uHeight != infoPtr->uItemHeight)
1874 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1875
1876 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1877
1878 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1879 TREEVIEW_UpdateScrollBars(infoPtr);
1880
1881 if (bRedraw)
1882 TREEVIEW_Invalidate(infoPtr, NULL);
1883
1884 return 0;
1885 }
1886
1887
1888 static LRESULT
1889 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1890 {
1891 TRACE("\n");
1892 return (LRESULT)infoPtr->clrLine;
1893 }
1894
1895 static LRESULT
1896 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1897 {
1898 COLORREF prevColor = infoPtr->clrLine;
1899
1900 TRACE("\n");
1901 infoPtr->clrLine = color;
1902 return (LRESULT)prevColor;
1903 }
1904
1905
1906 static LRESULT
1907 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1908 {
1909 TRACE("\n");
1910 return (LRESULT)infoPtr->clrText;
1911 }
1912
1913 static LRESULT
1914 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1915 {
1916 COLORREF prevColor = infoPtr->clrText;
1917
1918 TRACE("\n");
1919 infoPtr->clrText = color;
1920
1921 if (infoPtr->clrText != prevColor)
1922 TREEVIEW_Invalidate(infoPtr, NULL);
1923
1924 return (LRESULT)prevColor;
1925 }
1926
1927
1928 static LRESULT
1929 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1930 {
1931 TRACE("\n");
1932 return (LRESULT)infoPtr->clrBk;
1933 }
1934
1935 static LRESULT
1936 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1937 {
1938 COLORREF prevColor = infoPtr->clrBk;
1939
1940 TRACE("\n");
1941 infoPtr->clrBk = newColor;
1942
1943 if (newColor != prevColor)
1944 TREEVIEW_Invalidate(infoPtr, NULL);
1945
1946 return (LRESULT)prevColor;
1947 }
1948
1949
1950 static LRESULT
1951 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1952 {
1953 TRACE("\n");
1954 return (LRESULT)infoPtr->clrInsertMark;
1955 }
1956
1957 static LRESULT
1958 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1959 {
1960 COLORREF prevColor = infoPtr->clrInsertMark;
1961
1962 TRACE("%x\n", color);
1963 infoPtr->clrInsertMark = color;
1964
1965 return (LRESULT)prevColor;
1966 }
1967
1968
1969 static LRESULT
1970 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1971 {
1972 TRACE("%d %p\n", wParam, item);
1973
1974 if (!TREEVIEW_ValidItem(infoPtr, item))
1975 return 0;
1976
1977 infoPtr->insertBeforeorAfter = wParam;
1978 infoPtr->insertMarkItem = item;
1979
1980 TREEVIEW_Invalidate(infoPtr, NULL);
1981
1982 return 1;
1983 }
1984
1985
1986 /************************************************************************
1987 * Some serious braindamage here. lParam is a pointer to both the
1988 * input HTREEITEM and the output RECT.
1989 */
1990 static LRESULT
1991 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1992 {
1993 TREEVIEW_ITEM *wineItem;
1994 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
1995
1996 TRACE("\n");
1997 /*
1998 * validate parameters
1999 */
2000 if (pItem == NULL)
2001 return FALSE;
2002
2003 wineItem = *pItem;
2004 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2005 return FALSE;
2006
2007 /*
2008 * If wParam is TRUE return the text size otherwise return
2009 * the whole item size
2010 */
2011 if (fTextRect)
2012 {
2013 /* Windows does not send TVN_GETDISPINFO here. */
2014
2015 lpRect->top = wineItem->rect.top;
2016 lpRect->bottom = wineItem->rect.bottom;
2017
2018 lpRect->left = wineItem->textOffset;
2019 if (!wineItem->textWidth)
2020 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2021
2022 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2023 }
2024 else
2025 {
2026 *lpRect = wineItem->rect;
2027 }
2028
2029 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2030
2031 return TRUE;
2032 }
2033
2034 static inline LRESULT
2035 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2036 {
2037 /* Surprise! This does not take integral height into account. */
2038 return infoPtr->clientHeight / infoPtr->uItemHeight;
2039 }
2040
2041
2042 static LRESULT
2043 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2044 {
2045 TREEVIEW_ITEM *wineItem;
2046
2047 wineItem = tvItem->hItem;
2048 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2049 return FALSE;
2050
2051 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2052
2053 if (tvItem->mask & TVIF_CHILDREN)
2054 {
2055 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2056 FIXME("I_CHILDRENCALLBACK not supported\n");
2057 tvItem->cChildren = wineItem->cChildren;
2058 }
2059
2060 if (tvItem->mask & TVIF_HANDLE)
2061 tvItem->hItem = wineItem;
2062
2063 if (tvItem->mask & TVIF_IMAGE)
2064 tvItem->iImage = wineItem->iImage;
2065
2066 if (tvItem->mask & TVIF_INTEGRAL)
2067 tvItem->iIntegral = wineItem->iIntegral;
2068
2069 /* undocumented: windows ignores TVIF_PARAM and
2070 * * always sets lParam
2071 */
2072 tvItem->lParam = wineItem->lParam;
2073
2074 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2075 tvItem->iSelectedImage = wineItem->iSelectedImage;
2076
2077 if (tvItem->mask & TVIF_STATE)
2078 /* Careful here - Windows ignores the stateMask when you get the state
2079 That contradicts the documentation, but makes more common sense, masking
2080 retrieval in this way seems overkill */
2081 tvItem->state = wineItem->state;
2082
2083 if (tvItem->mask & TVIF_TEXT)
2084 {
2085 if (wineItem->pszText == NULL)
2086 {
2087 if (tvItem->cchTextMax > 0)
2088 tvItem->pszText[0] = '\0';
2089 }
2090 else if (isW)
2091 {
2092 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2093 {
2094 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2095 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2096 }
2097 else
2098 {
2099 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2100 }
2101 }
2102 else
2103 {
2104 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2105 {
2106 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2107 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2108 }
2109 else
2110 {
2111 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2112 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2113 }
2114 }
2115 }
2116 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2117 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2118
2119 return TRUE;
2120 }
2121
2122 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2123 * which is wrong. */
2124 static LRESULT
2125 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2126 {
2127 TREEVIEW_ITEM *wineItem;
2128 TREEVIEW_ITEM originalItem;
2129
2130 wineItem = tvItem->hItem;
2131
2132 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2133 tvItem->mask);
2134
2135 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2136 return FALSE;
2137
2138 /* store the original item values */
2139 originalItem = *wineItem;
2140
2141 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2142 return FALSE;
2143
2144 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2145 if ((tvItem->mask & TVIF_TEXT
2146 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2147 && ISVISIBLE(wineItem))
2148 {
2149 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2150 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2151 }
2152
2153 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2154 {
2155 /* The refresh updates everything, but we can't wait until then. */
2156 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2157
2158 /* if any of the item's values changed and it's not a callback, redraw the item */
2159 if (item_changed(&originalItem, wineItem, tvItem))
2160 {
2161 if (tvItem->mask & TVIF_INTEGRAL)
2162 {
2163 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2164 TREEVIEW_UpdateScrollBars(infoPtr);
2165
2166 TREEVIEW_Invalidate(infoPtr, NULL);
2167 }
2168 else
2169 {
2170 TREEVIEW_UpdateScrollBars(infoPtr);
2171 TREEVIEW_Invalidate(infoPtr, wineItem);
2172 }
2173 }
2174 }
2175
2176 return TRUE;
2177 }
2178
2179 static LRESULT
2180 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2181 {
2182 TRACE("\n");
2183
2184 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2185 return 0;
2186
2187 return (wineItem->state & mask);
2188 }
2189
2190 static LRESULT
2191 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2192 {
2193 TREEVIEW_ITEM *retval;
2194
2195 retval = 0;
2196
2197 /* handle all the global data here */
2198 switch (which)
2199 {
2200 case TVGN_CHILD: /* Special case: child of 0 is root */
2201 if (wineItem)
2202 break;
2203 /* fall through */
2204 case TVGN_ROOT:
2205 retval = infoPtr->root->firstChild;
2206 break;
2207
2208 case TVGN_CARET:
2209 retval = infoPtr->selectedItem;
2210 break;
2211
2212 case TVGN_FIRSTVISIBLE:
2213 retval = infoPtr->firstVisible;
2214 break;
2215
2216 case TVGN_DROPHILITE:
2217 retval = infoPtr->dropItem;
2218 break;
2219
2220 case TVGN_LASTVISIBLE:
2221 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2222 break;
2223 }
2224
2225 if (retval)
2226 {
2227 TRACE("flags:%x, returns %p\n", which, retval);
2228 return (LRESULT)retval;
2229 }
2230
2231 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2232
2233 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2234 return FALSE;
2235
2236 switch (which)
2237 {
2238 case TVGN_NEXT:
2239 retval = wineItem->nextSibling;
2240 break;
2241 case TVGN_PREVIOUS:
2242 retval = wineItem->prevSibling;
2243 break;
2244 case TVGN_PARENT:
2245 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2246 break;
2247 case TVGN_CHILD:
2248 retval = wineItem->firstChild;
2249 break;
2250 case TVGN_NEXTVISIBLE:
2251 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2252 break;
2253 case TVGN_PREVIOUSVISIBLE:
2254 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2255 break;
2256 default:
2257 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2258 break;
2259 }
2260
2261 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2262 return (LRESULT)retval;
2263 }
2264
2265
2266 static LRESULT
2267 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2268 {
2269 TRACE(" %d\n", infoPtr->uNumItems);
2270 return (LRESULT)infoPtr->uNumItems;
2271 }
2272
2273 static VOID
2274 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2275 {
2276 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2277 {
2278 static const unsigned int state_table[] = { 0, 2, 1 };
2279
2280 unsigned int state;
2281
2282 state = STATEIMAGEINDEX(item->state);
2283 TRACE("state:%x\n", state);
2284 item->state &= ~TVIS_STATEIMAGEMASK;
2285
2286 if (state < 3)
2287 state = state_table[state];
2288
2289 item->state |= INDEXTOSTATEIMAGEMASK(state);
2290
2291 TRACE("state:%x\n", state);
2292 TREEVIEW_Invalidate(infoPtr, item);
2293 }
2294 }
2295
2296
2297 /* Painting *************************************************************/
2298
2299 /* Draw the lines and expand button for an item. Also draws one section
2300 * of the line from item's parent to item's parent's next sibling. */
2301 static void
2302 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2303 {
2304 LONG centerx, centery;
2305 BOOL lar = ((infoPtr->dwStyle
2306 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2307 > TVS_LINESATROOT);
2308 HBRUSH hbr, hbrOld;
2309
2310 if (!lar && item->iLevel == 0)
2311 return;
2312
2313 hbr = CreateSolidBrush(infoPtr->clrBk);
2314 hbrOld = SelectObject(hdc, hbr);
2315
2316 centerx = (item->linesOffset + item->stateOffset) / 2;
2317 centery = (item->rect.top + item->rect.bottom) / 2;
2318
2319 if (infoPtr->dwStyle & TVS_HASLINES)
2320 {
2321 HPEN hOldPen, hNewPen;
2322 HTREEITEM parent;
2323 LOGBRUSH lb;
2324
2325 /* Get a dotted grey pen */
2326 lb.lbStyle = BS_SOLID;
2327 lb.lbColor = infoPtr->clrLine;
2328 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2329 hOldPen = SelectObject(hdc, hNewPen);
2330
2331 /* Make sure the center is on a dot (using +2 instead
2332 * of +1 gives us pixel-by-pixel compat with native) */
2333 centery = (centery + 2) & ~1;
2334
2335 MoveToEx(hdc, item->stateOffset, centery, NULL);
2336 LineTo(hdc, centerx - 1, centery);
2337
2338 if (item->prevSibling || item->parent != infoPtr->root)
2339 {
2340 MoveToEx(hdc, centerx, item->rect.top, NULL);
2341 LineTo(hdc, centerx, centery);
2342 }
2343
2344 if (item->nextSibling)
2345 {
2346 MoveToEx(hdc, centerx, centery, NULL);
2347 LineTo(hdc, centerx, item->rect.bottom + 1);
2348 }
2349
2350 /* Draw the line from our parent to its next sibling. */
2351 parent = item->parent;
2352 while (parent != infoPtr->root)
2353 {
2354 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2355
2356 if (parent->nextSibling
2357 /* skip top-levels unless TVS_LINESATROOT */
2358 && parent->stateOffset > parent->linesOffset)
2359 {
2360 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2361 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2362 }
2363
2364 parent = parent->parent;
2365 }
2366
2367 SelectObject(hdc, hOldPen);
2368 DeleteObject(hNewPen);
2369 }
2370
2371 /*
2372 * Display the (+/-) signs
2373 */
2374
2375 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2376 {
2377 if (item->cChildren)
2378 {
2379 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2380 if (theme)
2381 {
2382 RECT glyphRect = item->rect;
2383 glyphRect.left = item->linesOffset;
2384 glyphRect.right = item->stateOffset;
2385 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2386 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2387 &glyphRect, NULL);
2388 }
2389 else
2390 {
2391 LONG height = item->rect.bottom - item->rect.top;
2392 LONG width = item->stateOffset - item->linesOffset;
2393 LONG rectsize = min(height, width) / 4;
2394 /* plussize = ceil(rectsize * 3/4) */
2395 LONG plussize = (rectsize + 1) * 3 / 4;
2396
2397 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2398 HPEN hOldPen = SelectObject(hdc, hNewPen);
2399
2400 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2401 centerx + rectsize + 2, centery + rectsize + 2);
2402
2403 SelectObject(hdc, hOldPen);
2404 DeleteObject(hNewPen);
2405
2406 if (height < 18 || width < 18)
2407 {
2408 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2409 LineTo(hdc, centerx + plussize, centery);
2410
2411 if (!(item->state & TVIS_EXPANDED))
2412 {
2413 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2414 LineTo(hdc, centerx, centery + plussize);
2415 }
2416 }
2417 else
2418 {
2419 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2420 centerx + plussize, centery + 2);
2421
2422 if (!(item->state & TVIS_EXPANDED))
2423 {
2424 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2425 centerx + 2, centery + plussize);
2426 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2427 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2428 }
2429 }
2430 }
2431 }
2432 }
2433 SelectObject(hdc, hbrOld);
2434 DeleteObject(hbr);
2435 }
2436
2437 static void
2438 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2439 {
2440 INT cditem;
2441 HFONT hOldFont;
2442 COLORREF oldTextColor, oldTextBkColor;
2443 int centery;
2444 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2445 NMTVCUSTOMDRAW nmcdhdr;
2446
2447 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2448
2449 /* - If item is drop target or it is selected and window is in focus -
2450 * use blue background (COLOR_HIGHLIGHT).
2451 * - If item is selected, window is not in focus, but it has style
2452 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2453 * - Otherwise - use background color
2454 */
2455 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2456 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2457 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2458 {
2459 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2460 {
2461 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2462 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2463 }
2464 else
2465 {
2466 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2467 if (infoPtr->clrText == -1)
2468 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2469 else
2470 nmcdhdr.clrText = infoPtr->clrText;
2471 }
2472 }
2473 else
2474 {
2475 nmcdhdr.clrTextBk = infoPtr->clrBk;
2476 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2477 nmcdhdr.clrText = comctl32_color.clrHighlight;
2478 else if (infoPtr->clrText == -1)
2479 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2480 else
2481 nmcdhdr.clrText = infoPtr->clrText;
2482 }
2483
2484 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2485
2486 /* The custom draw handler can query the text rectangle,
2487 * so get ready. */
2488 /* should already be known, set to 0 when changed */
2489 if (!wineItem->textWidth)
2490 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2491
2492 cditem = 0;
2493
2494 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2495 {
2496 cditem = TREEVIEW_SendCustomDrawItemNotify
2497 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2498 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2499
2500 if (cditem & CDRF_SKIPDEFAULT)
2501 {
2502 SelectObject(hdc, hOldFont);
2503 return;
2504 }
2505 }
2506
2507 if (cditem & CDRF_NEWFONT)
2508 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2509
2510 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2511
2512 /* Set colors. Custom draw handler can change these so we do this after it. */
2513 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2514 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2515
2516 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2517
2518 /*
2519 * Display the images associated with this item
2520 */
2521 {
2522 INT imageIndex;
2523
2524 /* State images are displayed to the left of the Normal image
2525 * image number is in state; zero should be `display no image'.
2526 */
2527 imageIndex = STATEIMAGEINDEX(wineItem->state);
2528
2529 if (infoPtr->himlState && imageIndex)
2530 {
2531 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2532 wineItem->stateOffset,
2533 centery - infoPtr->stateImageHeight / 2,
2534 ILD_NORMAL);
2535 }
2536
2537 /* Now, draw the normal image; can be either selected or
2538 * non-selected image.
2539 */
2540
2541 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2542 {
2543 /* The item is currently selected */
2544 imageIndex = wineItem->iSelectedImage;
2545 }
2546 else
2547 {
2548 /* The item is not selected */
2549 imageIndex = wineItem->iImage;
2550 }
2551
2552 if (infoPtr->himlNormal)
2553 {
2554 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2555
2556 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2557 wineItem->imageOffset,
2558 centery - infoPtr->normalImageHeight / 2,
2559 ILD_NORMAL | ovlIdx);
2560 }
2561 }
2562
2563
2564 /*
2565 * Display the text associated with this item
2566 */
2567
2568 /* Don't paint item's text if it's being edited */
2569 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2570 {
2571 if (wineItem->pszText)
2572 {
2573 RECT rcText;
2574
2575 rcText.top = wineItem->rect.top;
2576 rcText.bottom = wineItem->rect.bottom;
2577 rcText.left = wineItem->textOffset;
2578 rcText.right = rcText.left + wineItem->textWidth + 4;
2579
2580 TRACE("drawing text %s at (%s)\n",
2581 debugstr_w(wineItem->pszText), wine_dbgstr_rect(&rcText));
2582
2583 /* Draw it */
2584 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2585 ETO_CLIPPED | ETO_OPAQUE,
2586 &rcText,
2587 wineItem->pszText,
2588 lstrlenW(wineItem->pszText),
2589 NULL);
2590
2591 /* Draw the box around the selected item */
2592 if ((wineItem == infoPtr->selectedItem) && inFocus)
2593 {
2594 DrawFocusRect(hdc,&rcText);
2595 }
2596
2597 }
2598 }
2599
2600 /* Draw insertion mark if necessary */
2601
2602 if (infoPtr->insertMarkItem)
2603 TRACE("item:%d,mark:%p\n",
2604 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2605 infoPtr->insertMarkItem);
2606
2607 if (wineItem == infoPtr->insertMarkItem)
2608 {
2609 HPEN hNewPen, hOldPen;
2610 int offset;
2611 int left, right;
2612
2613 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2614 hOldPen = SelectObject(hdc, hNewPen);
2615
2616 if (infoPtr->insertBeforeorAfter)
2617 offset = wineItem->rect.bottom - 1;
2618 else
2619 offset = wineItem->rect.top + 1;
2620
2621 left = wineItem->textOffset - 2;
2622 right = wineItem->textOffset + wineItem->textWidth + 2;
2623
2624 MoveToEx(hdc, left, offset - 3, NULL);
2625 LineTo(hdc, left, offset + 4);
2626
2627 MoveToEx(hdc, left, offset, NULL);
2628 LineTo(hdc, right + 1, offset);
2629
2630 MoveToEx(hdc, right, offset + 3, NULL);
2631 LineTo(hdc, right, offset - 4);
2632
2633 SelectObject(hdc, hOldPen);
2634 DeleteObject(hNewPen);
2635 }
2636
2637 if (cditem & CDRF_NOTIFYPOSTPAINT)
2638 {
2639 cditem = TREEVIEW_SendCustomDrawItemNotify
2640 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2641 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2642 }
2643
2644 /* Restore the hdc state */
2645 SetTextColor(hdc, oldTextColor);
2646 SetBkColor(hdc, oldTextBkColor);
2647 SelectObject(hdc, hOldFont);
2648 }
2649
2650 /* Computes treeHeight and treeWidth and updates the scroll bars.
2651 */
2652 static void
2653 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2654 {
2655 TREEVIEW_ITEM *wineItem;
2656 HWND hwnd = infoPtr->hwnd;
2657 BOOL vert = FALSE;
2658 BOOL horz = FALSE;
2659 SCROLLINFO si;
2660 LONG scrollX = infoPtr->scrollX;
2661
2662 infoPtr->treeWidth = 0;
2663 infoPtr->treeHeight = 0;
2664
2665 /* We iterate through all visible items in order to get the tree height
2666 * and width */
2667 wineItem = infoPtr->root->firstChild;
2668
2669 while (wineItem != NULL)
2670 {
2671 if (ISVISIBLE(wineItem))
2672 {
2673 /* actually we draw text at textOffset + 2 */
2674 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2675 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2676
2677 /* This is scroll-adjusted, but we fix this below. */
2678 infoPtr->treeHeight = wineItem->rect.bottom;
2679 }
2680
2681 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2682 }
2683
2684 /* Fix the scroll adjusted treeHeight and treeWidth. */
2685 if (infoPtr->root->firstChild)
2686 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2687
2688 infoPtr->treeWidth += infoPtr->scrollX;
2689
2690 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2691
2692 /* Adding one scroll bar may take up enough space that it forces us
2693 * to add the other as well. */
2694 if (infoPtr->treeHeight > infoPtr->clientHeight)
2695 {
2696 vert = TRUE;
2697
2698 if (infoPtr->treeWidth
2699 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2700 horz = TRUE;
2701 }
2702 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2703 horz = TRUE;
2704
2705 if (!vert && horz && infoPtr->treeHeight
2706 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2707 vert = TRUE;
2708
2709 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2710
2711 si.cbSize = sizeof(SCROLLINFO);
2712 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2713 si.nMin = 0;
2714
2715 if (vert)
2716 {
2717 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2718 if ( si.nPage && NULL != infoPtr->firstVisible)
2719 {
2720 si.nPos = infoPtr->firstVisible->visibleOrder;
2721 si.nMax = infoPtr->maxVisibleOrder - 1;
2722
2723 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2724
2725 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2726 ShowScrollBar(hwnd, SB_VERT, TRUE);
2727 infoPtr->uInternalStatus |= TV_VSCROLL;
2728 }
2729 else
2730 {
2731 if (infoPtr->uInternalStatus & TV_VSCROLL)
2732 ShowScrollBar(hwnd, SB_VERT, FALSE);
2733 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2734 }
2735 }
2736 else
2737 {
2738 if (infoPtr->uInternalStatus & TV_VSCROLL)
2739 ShowScrollBar(hwnd, SB_VERT, FALSE);
2740 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2741 }
2742
2743 if (horz)
2744 {
2745 si.nPage = infoPtr->clientWidth;
2746 si.nPos = infoPtr->scrollX;
2747 si.nMax = infoPtr->treeWidth - 1;
2748
2749 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2750 {
2751 si.nPos = si.nMax - max( si.nPage-1, 0 );
2752 scrollX = si.nPos;
2753 }
2754
2755 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2756 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2757 infoPtr->uInternalStatus |= TV_HSCROLL;
2758
2759 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2760 TREEVIEW_HScroll(infoPtr,
2761 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2762 }
2763 else
2764 {
2765 if (infoPtr->uInternalStatus & TV_HSCROLL)
2766 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2767 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2768
2769 scrollX = 0;
2770 if (infoPtr->scrollX != 0)
2771 {
2772 TREEVIEW_HScroll(infoPtr,
2773 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2774 }
2775 }
2776
2777 if (!horz)
2778 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2779 }
2780
2781 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2782 static LRESULT
2783 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hDC)
2784 {
2785 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2786 RECT rect;
2787
2788 GetClientRect(infoPtr->hwnd, &rect);
2789 FillRect(hDC, &rect, hBrush);
2790 DeleteObject(hBrush);
2791
2792 return 1;
2793 }
2794
2795 static void
2796 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2797 {
2798 HWND hwnd = infoPtr->hwnd;
2799 RECT rect = *rc;
2800 TREEVIEW_ITEM *wineItem;
2801
2802 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2803 {
2804 TRACE("empty window\n");
2805 return;
2806 }
2807
2808 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2809 hdc, rect);
2810
2811 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2812 {
2813 ReleaseDC(hwnd, hdc);
2814 return;
2815 }
2816
2817 for (wineItem = infoPtr->root->firstChild;
2818 wineItem != NULL;
2819 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2820 {
2821 if (ISVISIBLE(wineItem))
2822 {
2823 /* Avoid unneeded calculations */
2824 if (wineItem->rect.top > rect.bottom)
2825 break;
2826 if (wineItem->rect.bottom < rect.top)
2827 continue;
2828
2829 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2830 }
2831 }
2832
2833 //
2834 // This is correct, but it causes an infinite loop of WM_PAINT messages, resulting
2835 // in continuous painting of the scroll bar in reactos. Comment out until the real
2836 // bug is found
2837 //
2838 //TREEVIEW_UpdateScrollBars(infoPtr);
2839
2840 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2841 infoPtr->cdmode =
2842 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2843 }
2844
2845 static void
2846 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2847 {
2848 if (item != NULL)
2849 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2850 else
2851 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2852 }
2853
2854 static LRESULT
2855 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2856 {
2857 HDC hdc;
2858 PAINTSTRUCT ps;
2859 RECT rc;
2860
2861 TRACE("\n");
2862
2863 if (wParam)
2864 {
2865 hdc = (HDC)wParam;
2866 GetClientRect(infoPtr->hwnd, &rc);
2867 TREEVIEW_EraseBackground(infoPtr, hdc);
2868 }
2869 else
2870 {
2871 hdc = BeginPaint(infoPtr->hwnd, &ps);
2872 rc = ps.rcPaint;
2873 }
2874
2875 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2876 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2877
2878 if (!wParam)
2879 EndPaint(infoPtr->hwnd, &ps);
2880
2881 return 0;
2882 }
2883
2884
2885 /* Sorting **************************************************************/
2886
2887 /***************************************************************************
2888 * Forward the DPA local callback to the treeview owner callback
2889 */
2890 static INT WINAPI
2891 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2892 const TVSORTCB *pCallBackSort)
2893 {
2894 /* Forward the call to the client-defined callback */
2895 return pCallBackSort->lpfnCompare(first->lParam,
2896 second->lParam,
2897 pCallBackSort->lParam);
2898 }
2899
2900 /***************************************************************************
2901 * Treeview native sort routine: sort on item text.
2902 */
2903 static INT WINAPI
2904 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2905 const TREEVIEW_INFO *infoPtr)
2906 {
2907 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2908 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2909
2910 if(first->pszText && second->pszText)
2911 return lstrcmpiW(first->pszText, second->pszText);
2912 else if(first->pszText)
2913 return -1;
2914 else if(second->pszText)
2915 return 1;
2916 else
2917 return 0;
2918 }
2919
2920 /* Returns the number of physical children belonging to item. */
2921 static INT
2922 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
2923 {
2924 INT cChildren = 0;
2925 HTREEITEM hti;
2926
2927 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2928 cChildren++;
2929
2930 return cChildren;
2931 }
2932
2933 /* Returns a DPA containing a pointer to each physical child of item in
2934 * sibling order. If item has no children, an empty DPA is returned. */
2935 static HDPA
2936 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
2937 {
2938 HTREEITEM child = item->firstChild;
2939
2940 HDPA list = DPA_Create(8);
2941 if (list == 0) return NULL;
2942
2943 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2944 {
2945 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2946 {
2947 DPA_Destroy(list);
2948 return NULL;
2949 }
2950 }
2951
2952 return list;
2953 }
2954
2955 /***************************************************************************
2956 * Setup the treeview structure with regards of the sort method
2957 * and sort the children of the TV item specified in lParam
2958 * fRecurse: currently unused. Should be zero.
2959 * parent: if pSort!=NULL, should equal pSort->hParent.
2960 * otherwise, item which child items are to be sorted.
2961 * pSort: sort method info. if NULL, sort on item text.
2962 * if non-NULL, sort on item's lParam content, and let the
2963 * application decide what that means. See also TVM_SORTCHILDRENCB.
2964 */
2965
2966 static LRESULT
2967 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
2968 LPTVSORTCB pSort)
2969 {
2970 INT cChildren;
2971 PFNDPACOMPARE pfnCompare;
2972 LPARAM lpCompare;
2973
2974 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2975 if (parent == TVI_ROOT || parent == NULL)
2976 parent = infoPtr->root;
2977
2978 /* Check for a valid handle to the parent item */
2979 if (!TREEVIEW_ValidItem(infoPtr, parent))
2980 {
2981 ERR("invalid item hParent=%p\n", parent);
2982 return FALSE;
2983 }
2984
2985 if (pSort)
2986 {
2987 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2988 lpCompare = (LPARAM)pSort;
2989 }
2990 else
2991 {
2992 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2993 lpCompare = (LPARAM)infoPtr;
2994 }
2995
2996 cChildren = TREEVIEW_CountChildren(parent);
2997
2998 /* Make sure there is something to sort */
2999 if (cChildren > 1)
3000 {
3001 /* TREEVIEW_ITEM rechaining */
3002 INT count = 0;
3003 HTREEITEM item = 0;
3004 HTREEITEM nextItem = 0;
3005 HTREEITEM prevItem = 0;
3006
3007 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3008
3009 if (sortList == NULL)
3010 return FALSE;
3011
3012 /* let DPA sort the list */
3013 DPA_Sort(sortList, pfnCompare, lpCompare);
3014
3015 /* The order of DPA entries has been changed, so fixup the
3016 * nextSibling and prevSibling pointers. */
3017
3018 item = DPA_GetPtr(sortList, count++);
3019 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3020 {
3021 /* link the two current item together */
3022 item->nextSibling = nextItem;
3023 nextItem->prevSibling = item;
3024
3025 if (prevItem == NULL)
3026 {
3027 /* this is the first item, update the parent */
3028 parent->firstChild = item;
3029 item->prevSibling = NULL;
3030 }
3031 else
3032 {
3033 /* fix the back chaining */
3034 item->prevSibling = prevItem;
3035 }
3036
3037 /* get ready for the next one */
3038 prevItem = item;
3039 item = nextItem;
3040 }
3041
3042 /* the last item is pointed to by item and never has a sibling */
3043 item->nextSibling = NULL;
3044 parent->lastChild = item;
3045
3046 DPA_Destroy(sortList);
3047
3048 TREEVIEW_VerifyTree(infoPtr);
3049
3050 if (parent->state & TVIS_EXPANDED)
3051 {
3052 int visOrder = infoPtr->firstVisible->visibleOrder;
3053
3054 if (parent == infoPtr->root)
3055 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3056 else
3057 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3058
3059 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3060 {
3061 TREEVIEW_ITEM *item;
3062
3063 for (item = infoPtr->root->firstChild; item != NULL;
3064 item = TREEVIEW_GetNextListItem(infoPtr, item))
3065 {
3066 if (item->visibleOrder == visOrder)
3067 break;
3068 }
3069
3070 if (!item) item = parent->firstChild;
3071 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3072 }
3073
3074 TREEVIEW_Invalidate(infoPtr, NULL);
3075 }
3076
3077 return TRUE;
3078 }
3079 return FALSE;
3080 }
3081
3082
3083 /***************************************************************************
3084 * Setup the treeview structure with regards of the sort method
3085 * and sort the children of the TV item specified in lParam
3086 */
3087 static LRESULT
3088 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3089 {
3090 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3091 }
3092
3093
3094 /***************************************************************************
3095 * Sort the children of the TV item specified in lParam.
3096 */
3097 static LRESULT
3098 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3099 {
3100 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3101 }
3102
3103
3104 /* Expansion/Collapse ***************************************************/
3105
3106 static BOOL
3107 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3108 UINT action)
3109 {
3110 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3111 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3112 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3113 0, wineItem);
3114 }
3115
3116 static VOID
3117 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3118 UINT action)
3119 {
3120 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3121 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3122 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3123 0, wineItem);
3124 }
3125
3126
3127 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3128 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3129 static BOOL
3130 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3131 BOOL bRemoveChildren, BOOL bUser)
3132 {
3133 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3134 BOOL bSetSelection, bSetFirstVisible;
3135 RECT scrollRect;
3136 LONG scrollDist = 0;
3137 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3138
3139 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3140
3141 if (!(wineItem->state & TVIS_EXPANDED))
3142 return FALSE;
3143
3144 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3145 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3146
3147 if (wineItem->firstChild == NULL)
3148 return FALSE;
3149
3150 wineItem->state &= ~TVIS_EXPANDED;
3151
3152 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3153 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3154
3155 bSetSelection = (infoPtr->selectedItem != NULL
3156 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3157
3158 bSetFirstVisible = (infoPtr->firstVisible != NULL
3159 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3160
3161 tmpItem = wineItem;
3162 while (tmpItem)
3163 {
3164 if (tmpItem->nextSibling)
3165 {
3166 nextItem = tmpItem->nextSibling;
3167 break;
3168 }
3169 tmpItem = tmpItem->parent;
3170 }
3171
3172 if (nextItem)
3173 scrollDist = nextItem->rect.top;
3174
3175 if (bRemoveChildren)
3176 {
3177 INT old_cChildren = wineItem->cChildren;
3178 TRACE("TVE_COLLAPSERESET\n");
3179 wineItem->state &= ~TVIS_EXPANDEDONCE;
3180 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3181 wineItem->cChildren = old_cChildren;
3182 }
3183
3184 if (wineItem->firstChild)
3185 {
3186 TREEVIEW_ITEM *item, *sibling;
3187
3188 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3189
3190 for (item = wineItem->firstChild; item != sibling;
3191 item = TREEVIEW_GetNextListItem(infoPtr, item))
3192 {
3193 item->visibleOrder = -1;
3194 }
3195 }
3196
3197 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3198
3199 if (nextItem)
3200 scrollDist = -(scrollDist - nextItem->rect.top);
3201
3202 if (bSetSelection)
3203 {
3204 /* Don't call DoSelectItem, it sends notifications. */
3205 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3206 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3207 wineItem->state |= TVIS_SELECTED;
3208 infoPtr->selectedItem = wineItem;
3209 }
3210
3211 TREEVIEW_UpdateScrollBars(infoPtr);
3212
3213 scrollRect.left = 0;
3214 scrollRect.right = infoPtr->clientWidth;
3215 scrollRect.bottom = infoPtr->clientHeight;
3216
3217 if (nextItem)
3218 {
3219 scrollRect.top = nextItem->rect.top;
3220
3221 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3222 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3223 TREEVIEW_Invalidate(infoPtr, wineItem);
3224 } else {
3225 scrollRect.top = wineItem->rect.top;
3226 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3227 }
3228
3229 TREEVIEW_SetFirstVisible(infoPtr,
3230 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3231 TRUE);
3232
3233 return TRUE;
3234 }
3235
3236 static BOOL
3237 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3238 BOOL bExpandPartial, BOOL bUser)
3239 {
3240 LONG scrollDist;
3241 LONG orgNextTop = 0;
3242 RECT scrollRect;
3243 TREEVIEW_ITEM *nextItem, *tmpItem;
3244
3245 TRACE("\n");
3246
3247 if (wineItem->state & TVIS_EXPANDED)
3248 return TRUE;
3249
3250 tmpItem = wineItem; nextItem = NULL;
3251 while (tmpItem)
3252 {
3253 if (tmpItem->nextSibling)
3254 {
3255 nextItem = tmpItem->nextSibling;
3256 break;
3257 }
3258 tmpItem = tmpItem->parent;
3259 }
3260
3261 if (nextItem)
3262 orgNextTop = nextItem->rect.top;
3263
3264 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3265
3266 if (bUser || ((wineItem->cChildren != 0) &&
3267 !(wineItem->state & TVIS_EXPANDEDONCE)))
3268 {
3269 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3270 {
3271 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3272 return FALSE;
3273 }
3274
3275 if (!wineItem->firstChild)
3276 return FALSE;
3277
3278 wineItem->state |= TVIS_EXPANDED;
3279 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3280 wineItem->state |= TVIS_EXPANDEDONCE;
3281 }
3282 else
3283 {
3284 if (!wineItem->firstChild)
3285 return FALSE;
3286
3287 /* this item has already been expanded */
3288 wineItem->state |= TVIS_EXPANDED;
3289 }
3290
3291 if (bExpandPartial)
3292 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3293
3294 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3295 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3296 TREEVIEW_UpdateScrollBars(infoPtr);
3297
3298 scrollRect.left = 0;
3299 scrollRect.bottom = infoPtr->treeHeight;
3300 scrollRect.right = infoPtr->clientWidth;
3301 if (nextItem)
3302 {
3303 scrollDist = nextItem->rect.top - orgNextTop;
3304 scrollRect.top = orgNextTop;
3305
3306 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3307 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3308 TREEVIEW_Invalidate (infoPtr, wineItem);
3309 } else {
3310 scrollRect.top = wineItem->rect.top;
3311 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3312 }
3313
3314 /* Scroll up so that as many children as possible are visible.
3315 * This fails when expanding causes an HScroll bar to appear, but we
3316 * don't know that yet, so the last item is obscured. */
3317 if (wineItem->firstChild != NULL)
3318 {
3319 int nChildren = wineItem->lastChild->visibleOrder
3320 - wineItem->firstChild->visibleOrder + 1;
3321
3322 int visible_pos = wineItem->visibleOrder
3323 - infoPtr->firstVisible->visibleOrder;
3324
3325 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3326
3327 if (visible_pos > 0 && nChildren > rows_below)
3328 {
3329 int scroll = nChildren - rows_below;
3330
3331 if (scroll > visible_pos)
3332 scroll = visible_pos;
3333
3334 if (scroll > 0)
3335 {
3336 TREEVIEW_ITEM *newFirstVisible
3337 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3338 scroll);
3339
3340
3341 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3342 }
3343 }
3344 }
3345
3346 return TRUE;
3347 }
3348
3349 static BOOL
3350 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3351 {
3352 TRACE("\n");
3353
3354 if (wineItem->state & TVIS_EXPANDED)
3355 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3356 else
3357 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3358 }
3359
3360 static VOID
3361 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3362 {
3363 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3364
3365 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3366 {
3367 if (TREEVIEW_HasChildren(infoPtr, item))
3368 TREEVIEW_ExpandAll(infoPtr, item);
3369 }
3370 }
3371
3372 /* Note:If the specified item is the child of a collapsed parent item,
3373 the parent's list of child items is (recursively) expanded to reveal the
3374 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3375 know if it also applies here.
3376 */
3377
3378 static LRESULT
3379 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3380 {
3381 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3382 return 0;
3383
3384 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3385 TREEVIEW_ItemName(wineItem), flag,
3386 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3387
3388 switch (flag & TVE_TOGGLE)
3389 {
3390 case TVE_COLLAPSE:
3391 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3392 FALSE);
3393
3394 case TVE_EXPAND:
3395 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3396 FALSE);
3397
3398 case TVE_TOGGLE:
3399 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3400
3401 default:
3402 return 0;
3403 }
3404
3405 #if 0
3406 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3407 #endif
3408 }
3409
3410 /* Hit-Testing **********************************************************/
3411
3412 static TREEVIEW_ITEM *
3413 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3414 {
3415 TREEVIEW_ITEM *wineItem;
3416 LONG row;
3417
3418 if (!infoPtr->firstVisible)
3419 return NULL;
3420
3421 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3422
3423 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3424 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3425 {
3426 if (row >= wineItem->visibleOrder
3427 && row < wineItem->visibleOrder + wineItem->iIntegral)
3428 break;
3429 }
3430
3431 return wineItem;
3432 }
3433
3434 static LRESULT
3435 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3436 {
3437 TREEVIEW_ITEM *wineItem;
3438 RECT rect;
3439 UINT status;
3440 LONG x, y;
3441
3442 lpht->hItem = 0;
3443 GetClientRect(infoPtr->hwnd, &rect);
3444 status = 0;
3445 x = lpht->pt.x;
3446 y = lpht->pt.y;
3447
3448 if (x < rect.left)
3449 {
3450 status |= TVHT_TOLEFT;
3451 }
3452 else if (x > rect.right)
3453 {
3454 status |= TVHT_TORIGHT;
3455 }
3456
3457 if (y < rect.top)
3458 {
3459 status |= TVHT_ABOVE;
3460 }
3461 else if (y > rect.bottom)
3462 {
3463 status |= TVHT_BELOW;
3464 }
3465
3466 if (status)
3467 {
3468 lpht->flags = status;
3469 return 0;
3470 }
3471
3472 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3473 if (!wineItem)
3474 {
3475 lpht->flags = TVHT_NOWHERE;
3476 return 0;
3477 }
3478
3479 if (x >= wineItem->textOffset + wineItem->textWidth)
3480 {
3481 lpht->flags = TVHT_ONITEMRIGHT;
3482 }
3483 else if (x >= wineItem->textOffset)
3484 {
3485 lpht->flags = TVHT_ONITEMLABEL;
3486 }
3487 else if (x >= wineItem->imageOffset)
3488 {
3489 lpht->flags = TVHT_ONITEMICON;
3490 }
3491 else if (x >= wineItem->stateOffset)
3492 {
3493 lpht->flags = TVHT_ONITEMSTATEICON;
3494 }
3495 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3496 {
3497 lpht->flags = TVHT_ONITEMBUTTON;
3498 }
3499 else
3500 {
3501 lpht->flags = TVHT_ONITEMINDENT;
3502 }
3503
3504 lpht->hItem = wineItem;
3505 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3506
3507 return (LRESULT)wineItem;
3508 }
3509
3510 /* Item Label Editing ***************************************************/
3511
3512 static LRESULT
3513 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3514 {
3515 return (LRESULT)infoPtr->hwndEdit;
3516 }
3517
3518 static LRESULT CALLBACK
3519 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3520 {
3521 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3522 BOOL bCancel = FALSE;
3523 LRESULT rc;
3524
3525 switch (uMsg)
3526 {
3527 case WM_PAINT:
3528 TRACE("WM_PAINT start\n");
3529 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3530 lParam);
3531 TRACE("WM_PAINT done\n");
3532 return rc;
3533
3534 case WM_KILLFOCUS:
3535 if (infoPtr->bIgnoreEditKillFocus)
3536 return TRUE;
3537 break;
3538
3539 case WM_GETDLGCODE:
3540 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3541
3542 case WM_KEYDOWN:
3543 if (wParam == (WPARAM)VK_ESCAPE)
3544 {
3545 bCancel = TRUE;
3546 break;
3547 }
3548 else if (wParam == (WPARAM)VK_RETURN)
3549 {
3550 break;
3551 }
3552
3553 /* fall through */
3554 default:
3555 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3556 }
3557
3558 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3559 /* eg. Using a messagebox */
3560
3561 infoPtr->bIgnoreEditKillFocus = TRUE;
3562 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3563 infoPtr->bIgnoreEditKillFocus = FALSE;
3564
3565 return 0;
3566 }
3567
3568
3569 /* should handle edit control messages here */
3570
3571 static LRESULT
3572 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3573 {
3574 TRACE("%lx %ld\n", wParam, lParam);
3575
3576 switch (HIWORD(wParam))
3577 {
3578 case EN_UPDATE:
3579 {
3580 /*
3581 * Adjust the edit window size
3582 */
3583 WCHAR buffer[1024];
3584 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3585 HDC hdc = GetDC(infoPtr->hwndEdit);
3586 SIZE sz;
3587 HFONT hFont, hOldFont = 0;
3588
3589 infoPtr->bLabelChanged = TRUE;
3590
3591 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3592
3593 /* Select font to get the right dimension of the string */
3594 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3595
3596 if (hFont != 0)
3597 {
3598 hOldFont = SelectObject(hdc, hFont);
3599 }
3600
3601 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3602 {
3603 TEXTMETRICW textMetric;
3604
3605 /* Add Extra spacing for the next character */
3606 GetTextMetricsW(hdc, &textMetric);
3607 sz.cx += (textMetric.tmMaxCharWidth * 2);
3608
3609 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3610 sz.cx = min(sz.cx,
3611 infoPtr->clientWidth - editItem->textOffset + 2);
3612
3613 SetWindowPos(infoPtr->hwndEdit,
3614 HWND_TOP,
3615 0,
3616 0,
3617 sz.cx,
3618 editItem->rect.bottom - editItem->rect.top + 3,
3619 SWP_NOMOVE | SWP_DRAWFRAME);
3620 }
3621
3622 if (hFont != 0)
3623 {
3624 SelectObject(hdc, hOldFont);
3625 }
3626
3627 ReleaseDC(infoPtr->hwnd, hdc);
3628 break;
3629 }
3630
3631 default:
3632 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3633 }
3634
3635 return 0;
3636 }
3637
3638 static HWND
3639 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3640 {
3641 HWND hwnd = infoPtr->hwnd;
3642 HWND hwndEdit;
3643 SIZE sz;
3644 TREEVIEW_ITEM *editItem = hItem;
3645 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3646 HDC hdc;
3647 HFONT hOldFont=0;
3648 TEXTMETRICW textMetric;
3649 static const WCHAR EditW[] = {'E','d','i','t',0};
3650
3651 TRACE("%p %p\n", hwnd, hItem);
3652 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3653 return NULL;
3654
3655 if (infoPtr->hwndEdit)
3656 return infoPtr->hwndEdit;
3657
3658 infoPtr->bLabelChanged = FALSE;
3659
3660 /* Make sure that edit item is selected */
3661 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3662 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3663
3664 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3665
3666 hdc = GetDC(hwnd);
3667 /* Select the font to get appropriate metric dimensions */
3668 if (infoPtr->hFont != 0)
3669 {
3670 hOldFont = SelectObject(hdc, infoPtr->hFont);
3671 }
3672
3673 /* Get string length in pixels */
3674 if (editItem->pszText)
3675 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3676 &sz);
3677 else
3678 GetTextExtentPoint32A(hdc, "", 0, &sz);
3679
3680 /* Add Extra spacing for the next character */
3681 GetTextMetricsW(hdc, &textMetric);
3682 sz.cx += (textMetric.tmMaxCharWidth * 2);
3683
3684 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3685 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3686
3687 if (infoPtr->hFont != 0)
3688 {
3689 SelectObject(hdc, hOldFont);
3690 }
3691
3692 ReleaseDC(hwnd, hdc);
3693 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3694 EditW,
3695 0,
3696 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3697 WS_CLIPSIBLINGS | ES_WANTRETURN |
3698 ES_LEFT, editItem->textOffset - 2,
3699 editItem->rect.top - 1, sz.cx + 3,
3700 editItem->rect.bottom -
3701 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3702 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3703
3704 infoPtr->hwndEdit = hwndEdit;
3705
3706 /* Get a 2D border. */
3707 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3708 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3709 SetWindowLongW(hwndEdit, GWL_STYLE,
3710 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3711
3712 SendMessageW(hwndEdit, WM_SETFONT,
3713 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3714
3715 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3716 (DWORD_PTR)
3717 TREEVIEW_Edit_SubclassProc);
3718
3719 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3720 {
3721 DestroyWindow(hwndEdit);
3722 infoPtr->hwndEdit = 0;
3723 return NULL;
3724 }
3725
3726 infoPtr->selectedItem = hItem;
3727
3728 if (editItem->pszText)
3729 SetWindowTextW(hwndEdit, editItem->pszText);
3730
3731 SetFocus(hwndEdit);
3732 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3733 ShowWindow(hwndEdit, SW_SHOW);
3734
3735 return hwndEdit;
3736 }
3737
3738
3739 static LRESULT
3740 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3741 {
3742 HWND hwnd = infoPtr->hwnd;
3743 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3744 NMTVDISPINFOW tvdi;
3745 BOOL bCommit;
3746 WCHAR tmpText[1024] = { '\0' };
3747 WCHAR *newText = tmpText;
3748 int iLength = 0;
3749
3750 if (!infoPtr->hwndEdit)
3751 return FALSE;
3752
3753 tvdi.hdr.hwndFrom = hwnd;
3754 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3755 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3756 tvdi.item.mask = 0;
3757 tvdi.item.hItem = editedItem;
3758 tvdi.item.state = editedItem->state;
3759 tvdi.item.lParam = editedItem->lParam;
3760
3761 if (!bCancel)
3762 {
3763 if (!infoPtr->bNtfUnicode)
3764 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3765 else
3766 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3767
3768 if (iLength >= 1023)
3769 {
3770 ERR("Insufficient space to retrieve new item label\n");
3771 }
3772
3773 tvdi.item.mask = TVIF_TEXT;
3774 tvdi.item.pszText = tmpText;
3775 tvdi.item.cchTextMax = iLength + 1;
3776 }
3777 else
3778 {
3779 tvdi.item.pszText = NULL;
3780 tvdi.item.cchTextMax = 0;
3781 }
3782
3783 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
3784
3785 if (!bCancel && bCommit) /* Apply the changes */
3786 {
3787 if (!infoPtr->bNtfUnicode)
3788 {
3789 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3790 newText = Alloc(len * sizeof(WCHAR));
3791 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3792 iLength = len - 1;
3793 }
3794
3795 if (strcmpW(newText, editedItem->pszText) != 0)
3796 {
3797 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
3798 if (ptr == NULL)
3799 {
3800 ERR("OutOfMemory, cannot allocate space for label\n");
3801 if(newText != tmpText) Free(newText);
3802 DestroyWindow(infoPtr->hwndEdit);
3803 infoPtr->hwndEdit = 0;
3804 return FALSE;
3805 }
3806 else
3807 {
3808 editedItem->pszText = ptr;
3809 editedItem->cchTextMax = iLength + 1;
3810 strcpyW(editedItem->pszText, newText);
3811 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
3812 }
3813 }
3814 if(newText != tmpText) Free(newText);
3815 }
3816
3817 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3818 DestroyWindow(infoPtr->hwndEdit);
3819 infoPtr->hwndEdit = 0;
3820 return TRUE;
3821 }
3822
3823 static LRESULT
3824 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3825 {
3826 if (wParam != TV_EDIT_TIMER)
3827 {
3828 ERR("got unknown timer\n");
3829 return 1;
3830 }
3831
3832 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3833 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3834
3835 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3836
3837 return 0;
3838 }
3839
3840
3841 /* Mouse Tracking/Drag **************************************************/
3842
3843 /***************************************************************************
3844 * This is quite unusual piece of code, but that's how it's implemented in
3845 * Windows.
3846 */
3847 static LRESULT
3848 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
3849 {
3850 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3851 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3852 RECT r;
3853 MSG msg;
3854
3855 r.top = pt.y - cyDrag;
3856 r.left = pt.x - cxDrag;
3857 r.bottom = pt.y + cyDrag;
3858 r.right = pt.x + cxDrag;
3859
3860 SetCapture(infoPtr->hwnd);
3861
3862 while (1)
3863 {
3864 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3865 {
3866 if (msg.message == WM_MOUSEMOVE)
3867 {
3868 pt.x = (short)LOWORD(msg.lParam);
3869 pt.y = (short)HIWORD(msg.lParam);
3870 if (PtInRect(&r, pt))
3871 continue;
3872 else
3873 {
3874 ReleaseCapture();
3875 return 1;
3876 }
3877 }
3878 else if (msg.message >= WM_LBUTTONDOWN &&
3879 msg.message <= WM_RBUTTONDBLCLK)
3880 {
3881 if (msg.message == WM_RBUTTONUP)
3882 TREEVIEW_RButtonUp(infoPtr, &pt);
3883 break;
3884 }
3885
3886 DispatchMessageW(&msg);
3887 }
3888
3889 if (GetCapture() != infoPtr->hwnd)
3890 return 0;
3891 }
3892
3893 ReleaseCapture();
3894 return 0;
3895 }
3896
3897
3898 static LRESULT
3899 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3900 {
3901 TREEVIEW_ITEM *wineItem;
3902 TVHITTESTINFO hit;
3903
3904 TRACE("\n");
3905 SetFocus(infoPtr->hwnd);
3906
3907 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3908 {
3909 /* If there is pending 'edit label' event - kill it now */
3910 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3911 }
3912
3913 hit.pt.x = (short)LOWORD(lParam);
3914 hit.pt.y = (short)HIWORD(lParam);
3915
3916 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3917 if (!wineItem)
3918 return 0;
3919 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3920
3921 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3922 { /* FIXME! */
3923 switch (hit.flags)
3924 {
3925 case TVHT_ONITEMRIGHT:
3926 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3927 break;
3928
3929 case TVHT_ONITEMINDENT:
3930 if (!(infoPtr->dwStyle & TVS_HASLINES))
3931 {
3932 break;
3933 }
3934 else
3935 {
3936 int level = hit.pt.x / infoPtr->uIndent;
3937 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3938
3939 while (wineItem->iLevel > level)
3940 {
3941 wineItem = wineItem->parent;
3942 }
3943
3944 /* fall through */
3945 }
3946
3947 case TVHT_ONITEMLABEL:
3948 case TVHT_ONITEMICON:
3949 case TVHT_ONITEMBUTTON:
3950 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3951 break;
3952
3953 case TVHT_ONITEMSTATEICON:
3954 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3955 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3956 else
3957 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3958 break;
3959 }
3960 }
3961 return TRUE;
3962 }
3963
3964
3965 static LRESULT
3966 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3967 {
3968 HWND hwnd = infoPtr->hwnd;
3969 TVHITTESTINFO ht;
3970 BOOL bTrack, bDoLabelEdit;
3971 HTREEITEM tempItem;
3972
3973 /* If Edit control is active - kill it and return.
3974 * The best way to do it is to set focus to itself.
3975 * Edit control subclassed procedure will automatically call
3976 * EndEditLabelNow.
3977 */
3978 if (infoPtr->hwndEdit)
3979 {
3980 SetFocus(hwnd);
3981 return 0;
3982 }
3983
3984 ht.pt.x = (short)LOWORD(lParam);
3985 ht.pt.y = (short)HIWORD(lParam);
3986
3987 TREEVIEW_HitTest(infoPtr, &ht);
3988 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3989
3990 /* update focusedItem and redraw both items */
3991 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3992 {
3993 infoPtr->focusedItem = ht.hItem;
3994 InvalidateRect(hwnd, &ht.hItem->rect, TRUE);
3995
3996 if(infoPtr->selectedItem)
3997 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3998 }
3999
4000 bTrack = (ht.flags & TVHT_ONITEM)
4001 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4002
4003 /*
4004 * If the style allows editing and the node is already selected
4005 * and the click occurred on the item label...
4006 */
4007 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4008 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4009
4010 /* Send NM_CLICK right away */
4011 if (!bTrack)
4012 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4013 goto setfocus;
4014
4015 if (ht.flags & TVHT_ONITEMBUTTON)
4016 {
4017 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4018 goto setfocus;
4019 }
4020 else if (bTrack)
4021 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4022 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4023 {
4024 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4025 infoPtr->dropItem = ht.hItem;
4026
4027 /* clean up focusedItem as we dragged and won't select this item */
4028 if(infoPtr->focusedItem)
4029 {
4030 /* refresh the item that was focused */
4031 tempItem = infoPtr->focusedItem;
4032 infoPtr->focusedItem = 0;
4033 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4034
4035 /* refresh the selected item to return the filled background */
4036 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4037 }
4038
4039 return 0;
4040 }
4041 }
4042
4043 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4044 goto setfocus;
4045
4046 if (bDoLabelEdit)
4047 {
4048 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4049 KillTimer(hwnd, TV_EDIT_TIMER);
4050
4051 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4052 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4053 }
4054 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4055 {
4056 /*
4057 * if we are TVS_SINGLEEXPAND then we want this single click to
4058 * do a bunch of things.
4059 */
4060 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4061 (infoPtr->hwndEdit == 0))
4062 {
4063 TREEVIEW_ITEM *SelItem;
4064
4065 /*
4066 * Send the notification
4067 */
4068 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4069
4070 /*
4071 * Close the previous selection all the way to the root
4072 * as long as the new selection is not a child
4073 */
4074 if((infoPtr->selectedItem)
4075 && (infoPtr->selectedItem != ht.hItem))
4076 {
4077 BOOL closeit = TRUE;
4078 SelItem = ht.hItem;
4079
4080 /* determine if the hitItem is a child of the currently selected item */
4081 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4082 {
4083 closeit = (SelItem != infoPtr->selectedItem);
4084 SelItem = SelItem->parent;
4085 }
4086
4087 if(closeit)
4088 {
4089 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4090 SelItem = infoPtr->selectedItem;
4091
4092 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4093 {
4094 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4095 SelItem = SelItem->parent;
4096 }
4097 }
4098 }
4099
4100 /*
4101 * Expand the current item
4102 */
4103 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4104 }
4105
4106 /* Select the current item */
4107 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4108 }
4109 else if (ht.flags & TVHT_ONITEMSTATEICON)
4110 {
4111 /* TVS_CHECKBOXES requires us to toggle the current state */
4112 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4113 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4114 }
4115
4116 setfocus:
4117 SetFocus(hwnd);
4118 return 0;
4119 }
4120
4121
4122 static LRESULT
4123 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4124 {
4125 TVHITTESTINFO ht;
4126
4127 if (infoPtr->hwndEdit)
4128 {
4129 SetFocus(infoPtr->hwnd);
4130 return 0;
4131 }
4132
4133 ht.pt.x = (short)LOWORD(lParam);
4134 ht.pt.y = (short)HIWORD(lParam);
4135
4136 TREEVIEW_HitTest(infoPtr, &ht);
4137
4138 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4139 {
4140 if (ht.hItem)
4141 {
4142 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4143 infoPtr->dropItem = ht.hItem;
4144 }
4145 }
4146 else
4147 {
4148 SetFocus(infoPtr->hwnd);
4149 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4150 }
4151
4152 return 0;
4153 }
4154
4155 static LRESULT
4156 TREEVIEW_RButtonUp(const TREEVIEW_INFO *infoPtr, const POINT *pPt)
4157 {
4158 TVHITTESTINFO ht;
4159
4160 ht.pt = *pPt;
4161
4162 TREEVIEW_HitTest(infoPtr, &ht);
4163
4164 if (ht.hItem)
4165 {
4166 /* Change to screen coordinate for WM_CONTEXTMENU */
4167 ClientToScreen(infoPtr->hwnd, &ht.pt);
4168
4169 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4170 SendMessageW(infoPtr->hwnd, WM_CONTEXTMENU,
4171 (WPARAM)infoPtr->hwnd, MAKELPARAM(ht.pt.x, ht.pt.y));
4172 }
4173 return 0;
4174 }
4175
4176
4177 static LRESULT
4178 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4179 {
4180 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4181 INT cx, cy;
4182 HDC hdc, htopdc;
4183 HWND hwtop;
4184 HBITMAP hbmp, hOldbmp;
4185 SIZE size;
4186 RECT rc;
4187 HFONT hOldFont;
4188
4189 TRACE("\n");
4190
4191 if (!(infoPtr->himlNormal))
4192 return 0;
4193
4194 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4195 return 0;
4196
4197 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4198
4199 hwtop = GetDesktopWindow();
4200 htopdc = GetDC(hwtop);
4201 hdc = CreateCompatibleDC(htopdc);
4202
4203 hOldFont = SelectObject(hdc, infoPtr->hFont);
4204
4205 if (dragItem->pszText)
4206 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4207 &size);
4208 else
4209 GetTextExtentPoint32A(hdc, "", 0, &size);
4210
4211 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4212 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4213 hOldbmp = SelectObject(hdc, hbmp);
4214
4215 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4216 size.cx += cx;
4217 if (cy > size.cy)
4218 size.cy = cy;
4219
4220 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4221 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4222 ILD_NORMAL);
4223
4224 /*
4225 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4226 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4227 */
4228
4229 /* draw item text */
4230
4231 SetRect(&rc, cx, 0, size.cx, size.cy);
4232
4233 if (dragItem->pszText)
4234 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4235 DT_LEFT);
4236
4237 SelectObject(hdc, hOldFont);
4238 SelectObject(hdc, hOldbmp);
4239
4240 ImageList_Add(infoPtr->dragList, hbmp, 0);
4241
4242 DeleteDC(hdc);
4243 DeleteObject(hbmp);
4244 ReleaseDC(hwtop, htopdc);
4245
4246 return (LRESULT)infoPtr->dragList;
4247 }
4248
4249 /* Selection ************************************************************/
4250
4251 static LRESULT
4252 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4253 INT cause)
4254 {
4255 TREEVIEW_ITEM *prevSelect;
4256 RECT rcFocused;
4257
4258 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4259
4260 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4261 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4262 newSelect ? newSelect->state : 0);
4263
4264 /* reset and redraw focusedItem if focusedItem was set so we don't */
4265 /* have to worry about the previously focused item when we set a new one */
4266 if(infoPtr->focusedItem)
4267 {
4268 rcFocused = (infoPtr->focusedItem)->rect;
4269 infoPtr->focusedItem = 0;
4270 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4271 }
4272
4273 switch (action)
4274 {
4275 case TVGN_CARET:
4276 prevSelect = infoPtr->selectedItem;
4277
4278 if (prevSelect == newSelect) {
4279 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4280 break;
4281 }
4282
4283 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4284 TVN_SELCHANGINGW,
4285 cause,
4286 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4287 prevSelect,
4288 newSelect))
4289 return FALSE;
4290
4291 if (prevSelect)
4292 prevSelect->state &= ~TVIS_SELECTED;
4293 if (newSelect)
4294 newSelect->state |= TVIS_SELECTED;
4295
4296 infoPtr->selectedItem = newSelect;
4297
4298 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4299
4300 if (prevSelect)
4301 TREEVIEW_Invalidate(infoPtr, prevSelect);
4302 if (newSelect)
4303 TREEVIEW_Invalidate(infoPtr, newSelect);
4304
4305 TREEVIEW_SendTreeviewNotify(infoPtr,
4306 TVN_SELCHANGEDW,
4307 cause,
4308 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4309 prevSelect,
4310 newSelect);
4311 break;
4312
4313 case TVGN_DROPHILITE:
4314 prevSelect = infoPtr->dropItem;
4315
4316 if (prevSelect)
4317 prevSelect->state &= ~TVIS_DROPHILITED;
4318
4319 infoPtr->dropItem = newSelect;
4320
4321 if (newSelect)
4322 newSelect->state |= TVIS_DROPHILITED;
4323
4324 TREEVIEW_Invalidate(infoPtr, prevSelect);
4325 TREEVIEW_Invalidate(infoPtr, newSelect);
4326 break;
4327
4328 case TVGN_FIRSTVISIBLE:
4329 if (newSelect != NULL)
4330 {
4331 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4332 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4333 TREEVIEW_Invalidate(infoPtr, NULL);
4334 }
4335 break;
4336 }
4337
4338 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4339 return TRUE;
4340 }
4341
4342 /* FIXME: handle NM_KILLFOCUS etc */
4343 static LRESULT
4344 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4345 {
4346 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4347 return FALSE;
4348
4349 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4350
4351 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4352 return FALSE;
4353
4354 return TRUE;
4355 }
4356
4357 /*************************************************************************
4358 * TREEVIEW_ProcessLetterKeys
4359 *
4360 * Processes keyboard messages generated by pressing the letter keys
4361 * on the keyboard.
4362 * What this does is perform a case insensitive search from the
4363 * current position with the following quirks:
4364 * - If two chars or more are pressed in quick succession we search
4365 * for the corresponding string (e.g. 'abc').
4366 * - If there is a delay we wipe away the current search string and
4367 * restart with just that char.
4368 * - If the user keeps pressing the same character, whether slowly or
4369 * fast, so that the search string is entirely composed of this
4370 * character ('aaaaa' for instance), then we search for first item
4371 * that starting with that character.
4372 * - If the user types the above character in quick succession, then
4373 * we must also search for the corresponding string ('aaaaa'), and
4374 * go to that string if there is a match.
4375 *
4376 * RETURNS
4377 *
4378 * Zero.
4379 *
4380 * BUGS
4381 *
4382 * - The current implementation has a list of characters it will
4383 * accept and it ignores everything else. In particular it will
4384 * ignore accentuated characters which seems to match what
4385 * Windows does. But I'm not sure it makes sense to follow
4386 * Windows there.
4387 * - We don't sound a beep when the search fails.
4388 * - The search should start from the focused item, not from the selected
4389 * item. One reason for this is to allow for multiple selections in trees.
4390 * But currently infoPtr->focusedItem does not seem very usable.
4391 *
4392 * SEE ALSO
4393 *
4394 * TREEVIEW_ProcessLetterKeys
4395 */
4396 static INT TREEVIEW_ProcessLetterKeys(
4397 HWND hwnd, /* handle to the window */
4398 WPARAM charCode, /* the character code, the actual character */
4399 LPARAM keyData /* key data */
4400 )
4401 {
4402 TREEVIEW_INFO *infoPtr;
4403 HTREEITEM nItem;
4404 HTREEITEM endidx,idx;
4405 TVITEMEXW item;
4406 WCHAR buffer[MAX_PATH];
4407 DWORD timestamp,elapsed;
4408
4409 /* simple parameter checking */
4410 if (!hwnd || !charCode || !keyData)
4411 return 0;
4412
4413 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4414 if (!infoPtr)
4415 return 0;
4416
4417 /* only allow the valid WM_CHARs through */
4418 if (!isalnum(charCode) &&
4419 charCode != '.' && charCode != '`' && charCode != '!' &&
4420 charCode != '@' && charCode != '#' && charCode != '$' &&
4421 charCode != '%' && charCode != '^' && charCode != '&' &&
4422 charCode != '*' && charCode != '(' && charCode != ')' &&
4423 charCode != '-' && charCode != '_' && charCode != '+' &&
4424 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4425 charCode != '}' && charCode != '[' && charCode != '{' &&
4426 charCode != '/' && charCode != '?' && charCode != '>' &&
4427 charCode != '<' && charCode != ',' && charCode != '~')
4428 return 0;
4429
4430 /* compute how much time elapsed since last keypress */
4431 timestamp = GetTickCount();
4432 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4433 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4434 } else {
4435 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4436 }
4437
4438 /* update the search parameters */
4439 infoPtr->lastKeyPressTimestamp=timestamp;
4440 if (elapsed < KEY_DELAY) {
4441 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4442 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4443 }
4444 if (infoPtr->charCode != charCode) {
4445 infoPtr->charCode=charCode=0;
4446 }
4447 } else {
4448 infoPtr->charCode=charCode;
4449 infoPtr->szSearchParam[0]=charCode;
4450 infoPtr->nSearchParamLength=1;
4451 /* Redundant with the 1 char string */
4452 charCode=0;
4453 }
4454
4455 /* and search from the current position */
4456 nItem=NULL;
4457 if (infoPtr->selectedItem != NULL) {
4458 endidx=infoPtr->selectedItem;
4459 /* if looking for single character match,
4460 * then we must always move forward
4461 */
4462 if (infoPtr->nSearchParamLength == 1)
4463 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4464 else
4465 idx=endidx;
4466 } else {
4467 endidx=NULL;
4468 idx=infoPtr->root->firstChild;
4469 }
4470 do {
4471 /* At the end point, sort out wrapping */
4472 if (idx == NULL) {
4473
4474 /* If endidx is null, stop at the last item (ie top to bottom) */
4475 if (endidx == NULL)
4476 break;
4477
4478 /* Otherwise, start again at the very beginning */
4479 idx=infoPtr->root->firstChild;
4480
4481 /* But if we are stopping on the first child, end now! */
4482 if (idx == endidx) break;
4483 }
4484
4485 /* get item */
4486 ZeroMemory(&item, sizeof(item));
4487 item.mask = TVIF_TEXT;
4488 item.hItem = idx;
4489 item.pszText = buffer;
4490 item.cchTextMax = sizeof(buffer);
4491 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4492
4493 /* check for a match */
4494 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4495 nItem=idx;
4496 break;
4497 } else if ( (charCode != 0) && (nItem == NULL) &&
4498 (nItem != infoPtr->selectedItem) &&
4499 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4500 /* This would work but we must keep looking for a longer match */
4501 nItem=idx;
4502 }
4503 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4504 } while (idx != endidx);
4505
4506 if (nItem != NULL) {
4507 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4508 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4509 }
4510 }
4511
4512 return 0;
4513 }
4514
4515 /* Scrolling ************************************************************/
4516
4517 static LRESULT
4518 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4519 {
4520 int viscount;
4521 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4522 HTREEITEM newFirstVisible = NULL;
4523 int visible_pos = -1;
4524
4525 if (!TREEVIEW_ValidItem(infoPtr, item))
4526 return FALSE;
4527
4528 if (!ISVISIBLE(item))
4529 {
4530 /* Expand parents as necessary. */
4531 HTREEITEM parent;
4532
4533 /* see if we are trying to ensure that root is visible */
4534 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4535 parent = item->parent;
4536 else
4537 parent = item; /* this item is the topmost item */
4538
4539 while (parent != infoPtr->root)
4540 {
4541 if (!(parent->state & TVIS_EXPANDED))
4542 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4543
4544 parent = parent->parent;
4545 }
4546 }
4547
4548 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4549
4550 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4551 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4552
4553 if (hasFirstVisible)
4554 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4555
4556 if (visible_pos < 0)
4557 {
4558 /* item is before the start of the list: put it at the top. */
4559 newFirstVisible = item;
4560 }
4561 else if (visible_pos >= viscount
4562 /* Sometimes, before we are displayed, GVC is 0, causing us to
4563 * spuriously scroll up. */
4564 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4565 {
4566 /* item is past the end of the list. */
4567 int scroll = visible_pos - viscount;
4568
4569 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4570 scroll + 1);
4571 }
4572
4573 if (bHScroll)
4574 {
4575 /* Scroll window so item's text is visible as much as possible */
4576 /* Calculation of amount of extra space is taken from EditLabel code */
4577 INT pos, x;
4578 TEXTMETRICW textMetric;
4579 HDC hdc = GetWindowDC(infoPtr->hwnd);
4580
4581 x = item->textWidth;
4582
4583 GetTextMetricsW(hdc, &textMetric);
4584 ReleaseDC(infoPtr->hwnd, hdc);
4585
4586 x += (textMetric.tmMaxCharWidth * 2);
4587 x = max(x, textMetric.tmMaxCharWidth * 3);
4588
4589 if (item->textOffset < 0)
4590 pos = item->textOffset;
4591 else if (item->textOffset + x > infoPtr->clientWidth)
4592 {
4593 if (x > infoPtr->clientWidth)
4594 pos = item->textOffset;
4595 else
4596 pos = item->textOffset + x - infoPtr->clientWidth;
4597 }
4598 else
4599 pos = 0;
4600
4601 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4602 }
4603
4604 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4605 {
4606 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4607
4608 return TRUE;
4609 }
4610
4611 return FALSE;
4612 }
4613
4614 static VOID
4615 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4616 TREEVIEW_ITEM *newFirstVisible,
4617 BOOL bUpdateScrollPos)
4618 {
4619 int gap_size;
4620
4621 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4622
4623 if (newFirstVisible != NULL)
4624 {
4625 /* Prevent an empty gap from appearing at the bottom... */
4626 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4627 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4628
4629 if (gap_size > 0)
4630 {
4631 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4632 -gap_size);
4633
4634 /* ... unless we just don't have enough items. */
4635 if (newFirstVisible == NULL)
4636 newFirstVisible = infoPtr->root->firstChild;
4637 }
4638 }
4639
4640 if (infoPtr->firstVisible != newFirstVisible)
4641 {
4642 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4643 {
4644 infoPtr->firstVisible = newFirstVisible;
4645 TREEVIEW_Invalidate(infoPtr, NULL);
4646 }
4647 else
4648 {
4649 TREEVIEW_ITEM *item;
4650 int scroll = infoPtr->uItemHeight *
4651 (infoPtr->firstVisible->visibleOrder
4652 - newFirstVisible->visibleOrder);
4653
4654 infoPtr->firstVisible = newFirstVisible;
4655
4656 for (item = infoPtr->root->firstChild; item != NULL;
4657 item = TREEVIEW_GetNextListItem(infoPtr, item))
4658 {
4659 item->rect.top += scroll;
4660 item->rect.bottom += scroll;
4661 }
4662
4663 if (bUpdateScrollPos)
4664 SetScrollPos(infoPtr->hwnd, SB_VERT,
4665 newFirstVisible->visibleOrder, TRUE);
4666
4667 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4668 }
4669 }
4670 }
4671
4672 /************************************************************************
4673 * VScroll is always in units of visible items. i.e. we always have a
4674 * visible item aligned to the top of the control. (Unless we have no
4675 * items at all.)
4676 */
4677 static LRESULT
4678 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4679 {
4680 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4681 TREEVIEW_ITEM *newFirstVisible = NULL;
4682
4683 int nScrollCode = LOWORD(wParam);
4684
4685 TRACE("wp %lx\n", wParam);
4686
4687 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4688 return 0;
4689
4690 if (!oldFirstVisible)
4691 {
4692 assert(infoPtr->root->firstChild == NULL);
4693 return 0;
4694 }
4695
4696 switch (nScrollCode)
4697 {
4698 case SB_TOP:
4699 newFirstVisible = infoPtr->root->firstChild;
4700 break;
4701
4702 case SB_BOTTOM:
4703 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4704 break;
4705
4706 case SB_LINEUP:
4707 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4708 break;
4709
4710 case SB_LINEDOWN:
4711 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4712 break;
4713
4714 case SB_PAGEUP:
4715 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4716 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4717 break;
4718
4719 case SB_PAGEDOWN:
4720 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4721 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4722 break;
4723
4724 case SB_THUMBTRACK:
4725 case SB_THUMBPOSITION:
4726 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4727 infoPtr->root->firstChild,
4728 (LONG)(SHORT)HIWORD(wParam));
4729 break;
4730
4731 case SB_ENDSCROLL:
4732 return 0;
4733 }
4734
4735 if (newFirstVisible != NULL)
4736 {
4737 if (newFirstVisible != oldFirstVisible)
4738 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4739 nScrollCode != SB_THUMBTRACK);
4740 else if (nScrollCode == SB_THUMBPOSITION)
4741 SetScrollPos(infoPtr->hwnd, SB_VERT,
4742 newFirstVisible->visibleOrder, TRUE);
4743 }
4744
4745 return 0;
4746 }
4747
4748 static LRESULT
4749 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4750 {
4751 int maxWidth;
4752 int scrollX = infoPtr->scrollX;
4753 int nScrollCode = LOWORD(wParam);
4754
4755 TRACE("wp %lx\n", wParam);
4756
4757 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4758 return FALSE;
4759
4760 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4761 /* shall never occur */
4762 if (maxWidth <= 0)
4763 {
4764 scrollX = 0;
4765 goto scroll;
4766 }
4767
4768 switch (nScrollCode)
4769 {
4770 case SB_LINELEFT:
4771 scrollX -= infoPtr->uItemHeight;
4772 break;
4773 case SB_LINERIGHT:
4774 scrollX += infoPtr->uItemHeight;
4775 break;
4776 case SB_PAGELEFT:
4777 scrollX -= infoPtr->clientWidth;
4778 break;
4779 case SB_PAGERIGHT:
4780 scrollX += infoPtr->clientWidth;
4781 break;
4782
4783 case SB_THUMBTRACK:
4784 case SB_THUMBPOSITION:
4785 scrollX = (int)(SHORT)HIWORD(wParam);
4786 break;
4787
4788 case SB_ENDSCROLL:
4789 return 0;
4790 }
4791
4792 if (scrollX > maxWidth)
4793 scrollX = maxWidth;
4794 else if (scrollX < 0)
4795 scrollX = 0;
4796
4797 scroll:
4798 if (scrollX != infoPtr->scrollX)
4799 {
4800 TREEVIEW_ITEM *item;
4801 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4802
4803 for (item = infoPtr->root->firstChild; item != NULL;
4804 item = TREEVIEW_GetNextListItem(infoPtr, item))
4805 {
4806 item->linesOffset += scroll_pixels;
4807 item->stateOffset += scroll_pixels;
4808 item->imageOffset += scroll_pixels;
4809 item->textOffset += scroll_pixels;
4810 }
4811
4812 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4813 infoPtr->scrollX = scrollX;
4814 UpdateWindow(infoPtr->hwnd);
4815 }
4816
4817 if (nScrollCode != SB_THUMBTRACK)
4818 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4819
4820 return 0;
4821 }
4822
4823 static LRESULT
4824 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4825 {
4826 short gcWheelDelta;
4827 UINT pulScrollLines = 3;
4828
4829 if (infoPtr->firstVisible == NULL)
4830 return TRUE;
4831
4832 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4833
4834 gcWheelDelta = -(short)HIWORD(wParam);
4835 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4836
4837 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4838 {
4839 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4840 int maxDy = infoPtr->maxVisibleOrder;
4841
4842 if (newDy > maxDy)
4843 newDy = maxDy;
4844
4845 if (newDy < 0)
4846 newDy = 0;
4847
4848 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4849 }
4850 return TRUE;
4851 }
4852
4853 /* Create/Destroy *******************************************************/
4854
4855 static void
4856 initialize_checkboxes(TREEVIEW_INFO *infoPtr)
4857 {
4858 RECT rc;
4859 HBITMAP hbm, hbmOld;
4860 HDC hdc, hdcScreen;
4861 int nIndex;
4862
4863 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4864
4865 hdcScreen = GetDC(0);
4866
4867 hdc = CreateCompatibleDC(hdcScreen);
4868 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4869 hbmOld = SelectObject(hdc, hbm);
4870
4871 SetRect(&rc, 0, 0, 48, 16);
4872 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4873
4874 SetRect(&rc, 18, 2, 30, 14);
4875 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4876 DFCS_BUTTONCHECK|DFCS_FLAT);
4877
4878 SetRect(&rc, 34, 2, 46, 14);
4879 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4880 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4881
4882 SelectObject(hdc, hbmOld);
4883 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4884 GetSysColor(COLOR_WINDOW));
4885 TRACE("checkbox index %d\n", nIndex);
4886
4887 DeleteObject(hbm);
4888 DeleteDC(hdc);
4889 ReleaseDC(0, hdcScreen);
4890
4891 infoPtr->stateImageWidth = 16;
4892 infoPtr->stateImageHeight = 16;
4893 }
4894
4895 static LRESULT
4896 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4897 {
4898 RECT rcClient;
4899 TREEVIEW_INFO *infoPtr;
4900 LOGFONTW lf;
4901
4902 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4903
4904 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
4905
4906 if (infoPtr == NULL)
4907 {
4908 ERR("could not allocate info memory!\n");
4909 return 0;
4910 }
4911
4912 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4913
4914 infoPtr->hwnd = hwnd;
4915 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4916 infoPtr->Timer = 0;
4917 infoPtr->uNumItems = 0;
4918 infoPtr->cdmode = 0;
4919 infoPtr->uScrollTime = 300; /* milliseconds */
4920 infoPtr->bRedraw = TRUE;
4921
4922 GetClientRect(hwnd, &rcClient);
4923
4924 /* No scroll bars yet. */
4925 infoPtr->clientWidth = rcClient.right;
4926 infoPtr->clientHeight = rcClient.bottom;
4927 infoPtr->uInternalStatus = 0;
4928
4929 infoPtr->treeWidth = 0;
4930 infoPtr->treeHeight = 0;
4931
4932 infoPtr->uIndent = MINIMUM_INDENT;
4933 infoPtr->selectedItem = 0;
4934 infoPtr->focusedItem = 0;
4935 infoPtr->hotItem = 0;
4936 infoPtr->firstVisible = 0;
4937 infoPtr->maxVisibleOrder = 0;
4938 infoPtr->dropItem = 0;
4939 infoPtr->insertMarkItem = 0;
4940 infoPtr->insertBeforeorAfter = 0;
4941 /* dragList */
4942
4943 infoPtr->scrollX = 0;
4944
4945 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4946 infoPtr->clrText = -1; /* use system color */
4947 infoPtr->clrLine = RGB(128, 128, 128);
4948 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4949
4950 /* hwndToolTip */
4951
4952 infoPtr->hwndEdit = 0;
4953 infoPtr->wpEditOrig = NULL;
4954 infoPtr->bIgnoreEditKillFocus = FALSE;
4955 infoPtr->bLabelChanged = FALSE;
4956
4957 infoPtr->himlNormal = NULL;
4958 infoPtr->himlState = NULL;
4959 infoPtr->normalImageWidth = 0;
4960 infoPtr->normalImageHeight = 0;
4961 infoPtr->stateImageWidth = 0;
4962 infoPtr->stateImageHeight = 0;
4963
4964 infoPtr->items = DPA_Create(16);
4965
4966 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4967 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4968 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4969 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4970 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4971
4972 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4973
4974 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4975 infoPtr->root->state = TVIS_EXPANDED;
4976 infoPtr->root->iLevel = -1;
4977 infoPtr->root->visibleOrder = -1;
4978
4979 infoPtr->hwndNotify = lpcs->hwndParent;
4980 #if 0
4981 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4982 #endif
4983
4984 infoPtr->hwndToolTip = 0;
4985
4986 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4987
4988 /* Determine what type of notify should be issued */
4989 /* sets infoPtr->bNtfUnicode */
4990 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4991
4992 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4993 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
4994 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
4995 hwnd, 0, 0, 0);
4996
4997 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4998 initialize_checkboxes(infoPtr);
4999
5000 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5001 ShowScrollBar(hwnd, SB_VERT, FALSE);
5002 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5003
5004 OpenThemeData (hwnd, themeClass);
5005
5006 return 0;
5007 }
5008
5009
5010 static LRESULT
5011 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5012 {
5013 TRACE("\n");
5014
5015 TREEVIEW_RemoveTree(infoPtr);
5016
5017 /* tool tip is automatically destroyed: we are its owner */
5018
5019 /* Restore original wndproc */
5020 if (infoPtr->hwndEdit)
5021 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5022 (DWORD_PTR)infoPtr->wpEditOrig);
5023
5024 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5025
5026 /* Deassociate treeview from the window before doing anything drastic. */
5027 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5028
5029
5030 DeleteObject(infoPtr->hDefaultFont);
5031 DeleteObject(infoPtr->hBoldFont);
5032 DeleteObject(infoPtr->hUnderlineFont);
5033 Free(infoPtr);
5034
5035 return 0;
5036 }
5037
5038 /* Miscellaneous Messages ***********************************************/
5039
5040 static LRESULT
5041 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5042 {
5043 static const struct
5044 {
5045 unsigned char code;
5046 }
5047 scroll[] =
5048 {
5049 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5050 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5051 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5052 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5053 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5054 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5055 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5056 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5057 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5058 #undef SCROLL_ENTRY
5059 };
5060
5061 if (key >= VK_PRIOR && key <= VK_DOWN)
5062 {
5063 unsigned char code = scroll[key - VK_PRIOR].code;
5064
5065 (((code & (1 << 7)) == (SB_HORZ << 7))
5066 ? TREEVIEW_HScroll
5067 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5068 }
5069
5070 return 0;
5071 }
5072
5073 /************************************************************************
5074 * TREEVIEW_KeyDown
5075 *
5076 * VK_UP Move selection to the previous non-hidden item.
5077 * VK_DOWN Move selection to the next non-hidden item.
5078 * VK_HOME Move selection to the first item.
5079 * VK_END Move selection to the last item.
5080 * VK_LEFT If expanded then collapse, otherwise move to parent.
5081 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5082 * VK_ADD Expand.
5083 * VK_SUBTRACT Collapse.
5084 * VK_MULTIPLY Expand all.
5085 * VK_PRIOR Move up GetVisibleCount items.
5086 * VK_NEXT Move down GetVisibleCount items.
5087 * VK_BACK Move to parent.
5088 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5089 */
5090 static LRESULT
5091 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5092 {
5093 /* If it is non-NULL and different, it will be selected and visible. */
5094 TREEVIEW_ITEM *newSelection = NULL;
5095
5096 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5097
5098 TRACE("%lx\n", wParam);
5099
5100 if (prevItem == NULL)
5101 return FALSE;
5102
5103 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5104 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5105
5106 switch (wParam)
5107 {
5108 case VK_UP:
5109 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5110 if (!newSelection)
5111 newSelection = infoPtr->root->firstChild;
5112 break;
5113
5114 case VK_DOWN:
5115 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5116 break;
5117
5118 case VK_HOME:
5119 newSelection = infoPtr->root->firstChild;
5120 break;
5121
5122 case VK_END:
5123 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5124 break;
5125
5126 case VK_LEFT:
5127 if (prevItem->state & TVIS_EXPANDED)
5128 {
5129 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5130 }
5131 else if (prevItem->parent != infoPtr->root)
5132 {
5133 newSelection = prevItem->parent;
5134 }
5135 break;
5136
5137 case VK_RIGHT:
5138 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5139 {
5140 if (!(prevItem->state & TVIS_EXPANDED))
5141 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5142 else
5143 {
5144 newSelection = prevItem->firstChild;
5145 }
5146 }
5147
5148 break;
5149
5150 case VK_MULTIPLY:
5151 TREEVIEW_ExpandAll(infoPtr, prevItem);
5152 break;
5153
5154 case VK_ADD:
5155 if (!(prevItem->state & TVIS_EXPANDED))
5156 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5157 break;
5158
5159 case VK_SUBTRACT:
5160 if (prevItem->state & TVIS_EXPANDED)
5161 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5162 break;
5163
5164 case VK_PRIOR:
5165 newSelection
5166 = TREEVIEW_GetListItem(infoPtr, prevItem,
5167 -TREEVIEW_GetVisibleCount(infoPtr));
5168 break;
5169
5170 case VK_NEXT:
5171 newSelection
5172 = TREEVIEW_GetListItem(infoPtr, prevItem,
5173 TREEVIEW_GetVisibleCount(infoPtr));
5174 break;
5175
5176 case VK_BACK:
5177 newSelection = prevItem->parent;
5178 if (newSelection == infoPtr->root)
5179 newSelection = NULL;
5180 break;
5181
5182 case VK_SPACE:
5183 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5184 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5185 break;
5186 }
5187
5188 if (newSelection && newSelection != prevItem)
5189 {
5190 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5191 TVC_BYKEYBOARD))
5192 {
5193 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5194 }
5195 }
5196
5197 return FALSE;
5198 }
5199
5200 static LRESULT
5201 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5202 {
5203 if (infoPtr->hotItem)
5204 {
5205 /* remove hot effect from item */
5206 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5207 infoPtr->hotItem = NULL;
5208 }
5209 return 0;
5210 }
5211
5212 static LRESULT
5213 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5214 {
5215 POINT pt;
5216 TRACKMOUSEEVENT trackinfo;
5217 TREEVIEW_ITEM * item;
5218
5219 /* fill in the TRACKMOUSEEVENT struct */
5220 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5221 trackinfo.dwFlags = TME_QUERY;
5222 trackinfo.hwndTrack = infoPtr->hwnd;
5223 trackinfo.dwHoverTime = HOVER_DEFAULT;
5224
5225 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5226 _TrackMouseEvent(&trackinfo);
5227
5228 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5229 if(!(trackinfo.dwFlags & TME_LEAVE))
5230 {
5231 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5232
5233 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5234 /* and can properly deactivate the hot item */
5235 _TrackMouseEvent(&trackinfo);
5236 }
5237
5238 pt.x = (short)LOWORD(lParam);
5239 pt.y = (short)HIWORD(lParam);
5240
5241 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5242
5243 if (item != infoPtr->hotItem)
5244 {
5245 /* redraw old hot item */
5246 if (infoPtr->hotItem)
5247 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5248 infoPtr->hotItem = item;
5249 /* redraw new hot item */
5250 if (infoPtr->hotItem)
5251 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5252 }
5253
5254 return 0;
5255 }
5256
5257 /* Draw themed border */
5258 static BOOL nc_paint (const TREEVIEW_INFO *infoPtr, HRGN region)
5259 {
5260 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5261 HDC dc;
5262 RECT r;
5263 HRGN cliprgn;
5264 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5265 cyEdge = GetSystemMetrics (SM_CYEDGE);
5266
5267 if (!theme) return FALSE;
5268
5269 GetWindowRect(infoPtr->hwnd, &r);
5270
5271 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5272 r.right - cxEdge, r.bottom - cyEdge);
5273 if (region != (HRGN)1)
5274 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5275 OffsetRect(&r, -r.left, -r.top);
5276
5277 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5278 OffsetRect(&r, -r.left, -r.top);
5279
5280 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5281 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5282 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5283 ReleaseDC(infoPtr->hwnd, dc);
5284
5285 /* Call default proc to get the scrollbars etc. painted */
5286 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5287
5288 return TRUE;
5289 }
5290
5291 static LRESULT
5292 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5293 {
5294 LPNMHDR lpnmh = (LPNMHDR)lParam;
5295
5296 if (lpnmh->code == PGN_CALCSIZE) {
5297 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5298
5299 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5300 lppgc->iWidth = infoPtr->treeWidth;
5301 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5302 infoPtr->treeWidth, infoPtr->clientWidth);
5303 }
5304 else {
5305 lppgc->iHeight = infoPtr->treeHeight;
5306 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5307 infoPtr->treeHeight, infoPtr->clientHeight);
5308 }
5309 return 0;
5310 }
5311 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5312 }
5313
5314 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5315 {
5316 INT format;
5317
5318 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5319
5320 if (nCommand != NF_REQUERY) return 0;
5321
5322 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5323 TRACE("format=%d\n", format);
5324
5325 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5326
5327 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5328
5329 return format;
5330 }
5331
5332 static LRESULT
5333 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5334 {
5335 if (wParam == SIZE_RESTORED)
5336 {
5337 infoPtr->clientWidth = (short)LOWORD(lParam);
5338 infoPtr->clientHeight = (short)HIWORD(lParam);
5339
5340 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5341 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5342 TREEVIEW_UpdateScrollBars(infoPtr);
5343 }
5344 else
5345 {
5346 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5347 }
5348
5349 TREEVIEW_Invalidate(infoPtr, NULL);
5350 return 0;
5351 }
5352
5353 static LRESULT
5354 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5355 {
5356 TRACE("(%lx %lx)\n", wParam, lParam);
5357
5358 if (wParam == GWL_STYLE)
5359 {
5360 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5361
5362 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5363 {
5364 if (dwNewStyle & TVS_CHECKBOXES)
5365 {
5366 initialize_checkboxes(infoPtr);
5367 TRACE("checkboxes enabled\n");
5368 }
5369 else
5370 {
5371 FIXME("tried to disable checkboxes\n");
5372 }
5373 }
5374
5375 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5376 {
5377 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5378 {
5379 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5380 TRACE("tooltips enabled\n");
5381 }
5382 else
5383 {
5384 DestroyWindow(infoPtr->hwndToolTip);
5385 infoPtr->hwndToolTip = 0;
5386 TRACE("tooltips disabled\n");
5387 }
5388 }
5389
5390 infoPtr->dwStyle = dwNewStyle;
5391 }
5392
5393 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5394 TREEVIEW_UpdateScrollBars(infoPtr);
5395 TREEVIEW_Invalidate(infoPtr, NULL);
5396
5397 return 0;
5398 }
5399
5400 static LRESULT
5401 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5402 {
5403 POINT pt;
5404 TREEVIEW_ITEM * item;
5405
5406 GetCursorPos(&pt);
5407 ScreenToClient(infoPtr->hwnd, &pt);
5408
5409 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5410
5411 /* FIXME: send NM_SETCURSOR */
5412
5413 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5414 {
5415 SetCursor(infoPtr->hcurHand);
5416 return 0;
5417 }
5418 else
5419 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5420 }
5421
5422 static LRESULT
5423 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5424 {
5425 TRACE("\n");
5426
5427 if (!infoPtr->selectedItem)
5428 {
5429 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5430 TVC_UNKNOWN);
5431 }
5432
5433 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5434 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5435 return 0;
5436 }
5437
5438 static LRESULT
5439 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5440 {
5441 TRACE("\n");
5442
5443 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5444 UpdateWindow(infoPtr->hwnd);
5445 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5446 return 0;
5447 }
5448
5449 /* update theme after a WM_THEMECHANGED message */
5450 static LRESULT theme_changed(const TREEVIEW_INFO *infoPtr)
5451 {
5452 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5453 CloseThemeData (theme);
5454 OpenThemeData (infoPtr->hwnd, themeClass);
5455 return 0;
5456 }
5457
5458
5459 static LRESULT WINAPI
5460 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5461 {
5462 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5463
5464 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5465
5466 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5467 else
5468 {
5469 if (uMsg == WM_CREATE)
5470 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5471 else
5472 goto def;
5473 }
5474
5475 switch (uMsg)
5476 {
5477 case TVM_CREATEDRAGIMAGE:
5478 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5479
5480 case TVM_DELETEITEM:
5481 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5482
5483 case TVM_EDITLABELA:
5484 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5485
5486 case TVM_EDITLABELW:
5487 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5488
5489 case TVM_ENDEDITLABELNOW:
5490 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5491
5492 case TVM_ENSUREVISIBLE:
5493 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5494
5495 case TVM_EXPAND:
5496 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5497
5498 case TVM_GETBKCOLOR:
5499 return TREEVIEW_GetBkColor(infoPtr);
5500
5501 case TVM_GETCOUNT:
5502 return TREEVIEW_GetCount(infoPtr);
5503
5504 case TVM_GETEDITCONTROL:
5505 return TREEVIEW_GetEditControl(infoPtr);
5506
5507 case TVM_GETIMAGELIST:
5508 return TREEVIEW_GetImageList(infoPtr, wParam);
5509
5510 case TVM_GETINDENT:
5511 return TREEVIEW_GetIndent(infoPtr);
5512
5513 case TVM_GETINSERTMARKCOLOR:
5514 return TREEVIEW_GetInsertMarkColor(infoPtr);
5515
5516 case TVM_GETISEARCHSTRINGA:
5517 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5518 return 0;
5519
5520 case TVM_GETISEARCHSTRINGW:
5521 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5522 return 0;
5523
5524 case TVM_GETITEMA:
5525 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5526
5527 case TVM_GETITEMW:
5528 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5529
5530 case TVM_GETITEMHEIGHT:
5531 return TREEVIEW_GetItemHeight(infoPtr);
5532
5533 case TVM_GETITEMRECT:
5534 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5535
5536 case TVM_GETITEMSTATE:
5537 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5538
5539 case TVM_GETLINECOLOR:
5540 return TREEVIEW_GetLineColor(infoPtr);
5541
5542 case TVM_GETNEXTITEM:
5543 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5544
5545 case TVM_GETSCROLLTIME:
5546 return TREEVIEW_GetScrollTime(infoPtr);
5547
5548 case TVM_GETTEXTCOLOR:
5549 return TREEVIEW_GetTextColor(infoPtr);
5550
5551 case TVM_GETTOOLTIPS:
5552 return TREEVIEW_GetToolTips(infoPtr);
5553
5554 case TVM_GETUNICODEFORMAT:
5555 return TREEVIEW_GetUnicodeFormat(infoPtr);
5556
5557 case TVM_GETVISIBLECOUNT:
5558 return TREEVIEW_GetVisibleCount(infoPtr);
5559
5560 case TVM_HITTEST:
5561 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5562
5563 case TVM_INSERTITEMA:
5564 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5565
5566 case TVM_INSERTITEMW:
5567 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5568
5569 case TVM_SELECTITEM:
5570 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5571
5572 case TVM_SETBKCOLOR:
5573 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5574
5575 case TVM_SETIMAGELIST:
5576 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5577
5578 case TVM_SETINDENT:
5579 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5580
5581 case TVM_SETINSERTMARK:
5582 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5583
5584 case TVM_SETINSERTMARKCOLOR:
5585 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5586
5587 case TVM_SETITEMA:
5588 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5589
5590 case TVM_SETITEMW:
5591 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5592
5593 case TVM_SETLINECOLOR:
5594 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5595
5596 case TVM_SETITEMHEIGHT:
5597 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5598
5599 case TVM_SETSCROLLTIME:
5600 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5601
5602 case TVM_SETTEXTCOLOR:
5603 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5604
5605 case TVM_SETTOOLTIPS:
5606 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5607
5608 case TVM_SETUNICODEFORMAT:
5609 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5610
5611 case TVM_SORTCHILDREN:
5612 return TREEVIEW_SortChildren(infoPtr, lParam);
5613
5614 case TVM_SORTCHILDRENCB:
5615 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5616
5617 case WM_CHAR:
5618 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5619
5620 case WM_COMMAND:
5621 return TREEVIEW_Command(infoPtr, wParam, lParam);
5622
5623 case WM_DESTROY:
5624 return TREEVIEW_Destroy(infoPtr);
5625
5626 /* WM_ENABLE */
5627
5628 case WM_ERASEBKGND:
5629 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5630
5631 case WM_GETDLGCODE:
5632 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5633
5634 case WM_GETFONT:
5635 return TREEVIEW_GetFont(infoPtr);
5636
5637 case WM_HSCROLL:
5638 return TREEVIEW_HScroll(infoPtr, wParam);
5639
5640 case WM_KEYDOWN:
5641 return TREEVIEW_KeyDown(infoPtr, wParam);
5642
5643 case WM_KILLFOCUS:
5644 return TREEVIEW_KillFocus(infoPtr);
5645
5646 case WM_LBUTTONDBLCLK:
5647 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5648
5649 case WM_LBUTTONDOWN:
5650 return TREEVIEW_LButtonDown(infoPtr, lParam);
5651
5652 /* WM_MBUTTONDOWN */
5653
5654 case WM_MOUSELEAVE:
5655 return TREEVIEW_MouseLeave(infoPtr);
5656
5657 case WM_MOUSEMOVE:
5658 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5659 return TREEVIEW_MouseMove(infoPtr, lParam);
5660 else
5661 return 0;
5662
5663 case WM_NCLBUTTONDOWN:
5664 if (infoPtr->hwndEdit)
5665 SetFocus(infoPtr->hwnd);
5666 goto def;
5667
5668 case WM_NCPAINT:
5669 if (nc_paint (infoPtr, (HRGN)wParam))
5670 return 0;
5671 goto def;
5672
5673 case WM_NOTIFY:
5674 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5675
5676 case WM_NOTIFYFORMAT:
5677 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5678
5679 case WM_PRINTCLIENT:
5680 case WM_PAINT:
5681 return TREEVIEW_Paint(infoPtr, wParam);
5682
5683 case WM_RBUTTONDOWN:
5684 return TREEVIEW_RButtonDown(infoPtr, lParam);
5685
5686 case WM_SETCURSOR:
5687 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5688
5689 case WM_SETFOCUS:
5690 return TREEVIEW_SetFocus(infoPtr);
5691
5692 case WM_SETFONT:
5693 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5694
5695 case WM_SETREDRAW:
5696 return TREEVIEW_SetRedraw(infoPtr, wParam);
5697
5698 case WM_SIZE:
5699 return TREEVIEW_Size(infoPtr, wParam, lParam);
5700
5701 case WM_STYLECHANGED:
5702 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5703
5704 /* WM_SYSCOLORCHANGE */
5705
5706 /* WM_SYSKEYDOWN */
5707
5708 case WM_TIMER:
5709 return TREEVIEW_HandleTimer(infoPtr, wParam);
5710
5711 case WM_THEMECHANGED:
5712 return theme_changed (infoPtr);
5713
5714 case WM_VSCROLL:
5715 return TREEVIEW_VScroll(infoPtr, wParam);
5716
5717 /* WM_WININICHANGE */
5718
5719 case WM_MOUSEWHEEL:
5720 if (wParam & (MK_SHIFT | MK_CONTROL))
5721 goto def;
5722 return TREEVIEW_MouseWheel(infoPtr, wParam);
5723
5724 case WM_DRAWITEM:
5725 TRACE("drawItem\n");
5726 goto def;
5727
5728 default:
5729 /* This mostly catches MFC and Delphi messages. :( */
5730 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5731 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5732 def:
5733 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5734 }
5735 }
5736
5737
5738 /* Class Registration ***************************************************/
5739
5740 VOID
5741 TREEVIEW_Register(void)
5742 {
5743 WNDCLASSW wndClass;
5744
5745 TRACE("\n");
5746
5747 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5748 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5749 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5750 wndClass.cbClsExtra = 0;
5751 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5752
5753 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5754 wndClass.hbrBackground = 0;
5755 wndClass.lpszClassName = WC_TREEVIEWW;
5756
5757 RegisterClassW(&wndClass);
5758 }
5759
5760
5761 VOID
5762 TREEVIEW_Unregister(void)
5763 {
5764 UnregisterClassW(WC_TREEVIEWW, NULL);
5765 }
5766
5767
5768 /* Tree Verification ****************************************************/
5769
5770 #ifdef NDEBUG
5771 static inline void
5772 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5773
5774 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5775 TREEVIEW_ITEM *item)
5776 {
5777 assert(infoPtr != NULL);
5778 assert(item != NULL);
5779
5780 /* both NULL, or both non-null */
5781 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5782
5783 assert(item->firstChild != item);
5784 assert(item->lastChild != item);
5785
5786 if (item->firstChild)
5787 {
5788 assert(item->firstChild->parent == item);
5789 assert(item->firstChild->prevSibling == NULL);
5790 }
5791
5792 if (item->lastChild)
5793 {
5794 assert(item->lastChild->parent == item);
5795 assert(item->lastChild->nextSibling == NULL);
5796 }
5797
5798 assert(item->nextSibling != item);
5799 if (item->nextSibling)
5800 {
5801 assert(item->nextSibling->parent == item->parent);
5802 assert(item->nextSibling->prevSibling == item);
5803 }
5804
5805 assert(item->prevSibling != item);
5806 if (item->prevSibling)
5807 {
5808 assert(item->prevSibling->parent == item->parent);
5809 assert(item->prevSibling->nextSibling == item);
5810 }
5811 }
5812
5813 static inline void
5814 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5815 {
5816 assert(item != NULL);
5817
5818 assert(item->parent != NULL);
5819 assert(item->parent != item);
5820 assert(item->iLevel == item->parent->iLevel + 1);
5821
5822 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5823
5824 TREEVIEW_VerifyItemCommon(infoPtr, item);
5825
5826 TREEVIEW_VerifyChildren(infoPtr, item);
5827 }
5828
5829 static inline void
5830 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5831 {
5832 TREEVIEW_ITEM *child;
5833 assert(item != NULL);
5834
5835 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5836 TREEVIEW_VerifyItem(infoPtr, child);
5837 }
5838
5839 static inline void
5840 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5841 {
5842 TREEVIEW_ITEM *root = infoPtr->root;
5843
5844 assert(root != NULL);
5845 assert(root->iLevel == -1);
5846 assert(root->parent == NULL);
5847 assert(root->prevSibling == NULL);
5848
5849 TREEVIEW_VerifyItemCommon(infoPtr, root);
5850
5851 TREEVIEW_VerifyChildren(infoPtr, root);
5852 }
5853
5854 static void
5855 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5856 {
5857 assert(infoPtr != NULL);
5858
5859 TREEVIEW_VerifyRoot(infoPtr);
5860 }
5861 #endif
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