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