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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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(TREEVIEW_INFO *, 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(TREEVIEW_INFO *, LPPOINT);
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(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 (TREEVIEW_ITEM *tiOld, TREEVIEW_ITEM *tiNew, LPTVITEMEXW tvChange)
251 {
252 /* Number of children has changed */
253 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
254 return TRUE;
255
256 /* Image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
258 tiNew->iImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Selected image has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
263 tiNew->iSelectedImage != I_IMAGECALLBACK)
264 return TRUE;
265
266 /* Text has changed and it's not a callback */
267 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
268 tiNew->pszText != LPSTR_TEXTCALLBACKW)
269 return TRUE;
270
271 /* Indent has changed */
272 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
273 return TRUE;
274
275 /* Item state has changed */
276 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
277 return TRUE;
278
279 return FALSE;
280 }
281
282 /***************************************************************************
283 * This method checks that handle is an item for this tree.
284 */
285 static BOOL
286 TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
287 {
288 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
289 {
290 TRACE("invalid item %p\n", handle);
291 return FALSE;
292 }
293 else
294 return TRUE;
295 }
296
297 static HFONT
298 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
299 {
300 LOGFONTW font;
301
302 GetObjectW(hOrigFont, sizeof(font), &font);
303 font.lfWeight = FW_BOLD;
304 return CreateFontIndirectW(&font);
305 }
306
307 static HFONT
308 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
309 {
310 LOGFONTW font;
311
312 GetObjectW(hOrigFont, sizeof(font), &font);
313 font.lfUnderline = TRUE;
314 return CreateFontIndirectW(&font);
315 }
316
317 static inline HFONT
318 TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
319 {
320 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
321 return infoPtr->hUnderlineFont;
322 if (item->state & TVIS_BOLD)
323 return infoPtr->hBoldFont;
324 return infoPtr->hFont;
325 }
326
327 /* for trace/debugging purposes only */
328 static const char *
329 TREEVIEW_ItemName(TREEVIEW_ITEM *item)
330 {
331 if (item == NULL) return "<null item>";
332 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
333 if (item->pszText == NULL) return "<null>";
334 return debugstr_w(item->pszText);
335 }
336
337 /* An item is not a child of itself. */
338 static BOOL
339 TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
340 {
341 do
342 {
343 child = child->parent;
344 if (child == parent) return TRUE;
345 } while (child != NULL);
346
347 return FALSE;
348 }
349
350
351 /* Tree Traversal *******************************************************/
352
353 /***************************************************************************
354 * This method returns the last expanded sibling or child child item
355 * of a tree node
356 */
357 static TREEVIEW_ITEM *
358 TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
359 {
360 if (!wineItem)
361 return NULL;
362
363 while (wineItem->lastChild)
364 {
365 if (wineItem->state & TVIS_EXPANDED)
366 wineItem = wineItem->lastChild;
367 else
368 break;
369 }
370
371 if (wineItem == infoPtr->root)
372 return NULL;
373
374 return wineItem;
375 }
376
377 /***************************************************************************
378 * This method returns the previous non-hidden item in the list not
379 * considering the tree hierarchy.
380 */
381 static TREEVIEW_ITEM *
382 TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
383 {
384 if (tvItem->prevSibling)
385 {
386 /* This item has a prevSibling, get the last item in the sibling's tree. */
387 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
388
389 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
390 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
391 else
392 return upItem;
393 }
394 else
395 {
396 /* this item does not have a prevSibling, get the parent */
397 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
398 }
399 }
400
401
402 /***************************************************************************
403 * This method returns the next physical item in the treeview not
404 * considering the tree hierarchy.
405 */
406 static TREEVIEW_ITEM *
407 TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
408 {
409 assert(tvItem != NULL);
410
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(wineItem != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return wineItem;
467
468 do
469 {
470 previousItem = wineItem;
471 wineItem = next_item(infoPtr, wineItem);
472
473 } while (--count && wineItem != NULL);
474
475
476 return wineItem ? wineItem : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static LRESULT
503 TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
504 {
505 TRACE("wParam=%d, lParam=%ld\n", wParam, lParam);
506 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
507 }
508
509 static BOOL
510 TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
511 {
512 NMHDR nmhdr;
513 HWND hwnd = infoPtr->hwnd;
514
515 TRACE("%d\n", code);
516 nmhdr.hwndFrom = hwnd;
517 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
518 nmhdr.code = get_notifycode(infoPtr, code);
519
520 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
521 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 HWND hwnd = infoPtr->hwnd;
562 NMTREEVIEWW nmhdr;
563 BOOL ret;
564
565 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
566 code, action, oldItem, newItem);
567
568 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
569
570 nmhdr.hdr.hwndFrom = hwnd;
571 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
572 nmhdr.hdr.code = get_notifycode(infoPtr, code);
573 nmhdr.action = action;
574
575 if (oldItem)
576 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
577
578 if (newItem)
579 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
580
581 nmhdr.ptDrag.x = 0;
582 nmhdr.ptDrag.y = 0;
583
584 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
585 (WPARAM)nmhdr.hdr.idFrom,
586 (LPARAM)&nmhdr);
587 if (!infoPtr->bNtfUnicode)
588 {
589 Free(nmhdr.itemOld.pszText);
590 Free(nmhdr.itemNew.pszText);
591 }
592 return ret;
593 }
594
595 static BOOL
596 TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
597 HTREEITEM dragItem, POINT pt)
598 {
599 HWND hwnd = infoPtr->hwnd;
600 NMTREEVIEWW nmhdr;
601
602 TRACE("code:%d dragitem:%p\n", code, dragItem);
603
604 nmhdr.hdr.hwndFrom = hwnd;
605 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
606 nmhdr.hdr.code = get_notifycode(infoPtr, code);
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
617 (WPARAM)nmhdr.hdr.idFrom,
618 (LPARAM)&nmhdr);
619 }
620
621
622 static BOOL
623 TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
624 HDC hdc, RECT rc)
625 {
626 HWND hwnd = infoPtr->hwnd;
627 NMTVCUSTOMDRAW nmcdhdr;
628 LPNMCUSTOMDRAW nmcd;
629
630 TRACE("drawstage:%lx hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->hdr.hwndFrom = hwnd;
634 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
635 nmcd->hdr.code = NM_CUSTOMDRAW;
636 nmcd->dwDrawStage = dwDrawStage;
637 nmcd->hdc = hdc;
638 nmcd->rc = rc;
639 nmcd->dwItemSpec = 0;
640 nmcd->uItemState = 0;
641 nmcd->lItemlParam = 0;
642 nmcdhdr.clrText = infoPtr->clrText;
643 nmcdhdr.clrTextBk = infoPtr->clrBk;
644 nmcdhdr.iLevel = 0;
645
646 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
647 (WPARAM)nmcd->hdr.idFrom,
648 (LPARAM)&nmcdhdr);
649 }
650
651
652
653 /* FIXME: need to find out when the flags in uItemState need to be set */
654
655 static BOOL
656 TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
657 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
658 NMTVCUSTOMDRAW *nmcdhdr)
659 {
660 HWND hwnd = infoPtr->hwnd;
661 LPNMCUSTOMDRAW nmcd;
662 DWORD dwDrawStage;
663 DWORD_PTR dwItemSpec;
664 UINT uItemState;
665 INT retval;
666
667 dwDrawStage = CDDS_ITEM | uItemDrawState;
668 dwItemSpec = (DWORD_PTR)wineItem;
669 uItemState = 0;
670 if (wineItem->state & TVIS_SELECTED)
671 uItemState |= CDIS_SELECTED;
672 if (wineItem == infoPtr->selectedItem)
673 uItemState |= CDIS_FOCUS;
674 if (wineItem == infoPtr->hotItem)
675 uItemState |= CDIS_HOT;
676
677 nmcd = &nmcdhdr->nmcd;
678 nmcd->hdr.hwndFrom = hwnd;
679 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
680 nmcd->hdr.code = NM_CUSTOMDRAW;
681 nmcd->dwDrawStage = dwDrawStage;
682 nmcd->hdc = hdc;
683 nmcd->rc = wineItem->rect;
684 nmcd->dwItemSpec = dwItemSpec;
685 nmcd->uItemState = uItemState;
686 nmcd->lItemlParam = wineItem->lParam;
687 nmcdhdr->iLevel = wineItem->iLevel;
688
689 TRACE("drawstage:%lx hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
690 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
691 nmcd->uItemState, nmcd->lItemlParam);
692
693 retval = TREEVIEW_SendRealNotify(infoPtr,
694 (WPARAM)nmcd->hdr.idFrom,
695 (LPARAM)nmcdhdr);
696
697 return (BOOL)retval;
698 }
699
700 static BOOL
701 TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
702 {
703 HWND hwnd = infoPtr->hwnd;
704 NMTVDISPINFOW tvdi;
705 BOOL ret;
706
707 tvdi.hdr.hwndFrom = hwnd;
708 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
709 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
710
711 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
712 &tvdi.item, editItem);
713
714 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
715
716 if (!infoPtr->bNtfUnicode)
717 Free(tvdi.item.pszText);
718
719 return ret;
720 }
721
722 static void
723 TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
724 UINT mask)
725 {
726 NMTVDISPINFOW callback;
727 HWND hwnd = infoPtr->hwnd;
728
729 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
730 mask &= wineItem->callbackMask;
731
732 if (mask == 0) return;
733
734 callback.hdr.hwndFrom = hwnd;
735 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
736 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
737
738 /* 'state' always contains valid value, as well as 'lParam'.
739 * All other parameters are uninitialized.
740 */
741 callback.item.pszText = wineItem->pszText;
742 callback.item.cchTextMax = wineItem->cchTextMax;
743 callback.item.mask = mask;
744 callback.item.hItem = wineItem;
745 callback.item.state = wineItem->state;
746 callback.item.lParam = wineItem->lParam;
747
748 /* If text is changed we need to recalculate textWidth */
749 if (mask & TVIF_TEXT)
750 wineItem->textWidth = 0;
751
752 TREEVIEW_SendRealNotify(infoPtr,
753 (WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
754
755 /* It may have changed due to a call to SetItem. */
756 mask &= wineItem->callbackMask;
757
758 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
759 {
760 /* Instead of copying text into our buffer user specified its own */
761 if (!infoPtr->bNtfUnicode) {
762 LPWSTR newText;
763 int buflen;
764 int len = MultiByteToWideChar( CP_ACP, 0,
765 (LPSTR)callback.item.pszText, -1,
766 NULL, 0);
767 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
768 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
769
770 TRACE("returned str %s, len=%d, buflen=%d\n",
771 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
772
773 if (newText)
774 {
775 wineItem->pszText = newText;
776 MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 wineItem->pszText, buflen/sizeof(WCHAR));
779 wineItem->cchTextMax = buflen/sizeof(WCHAR);
780 }
781 /* If ReAlloc fails we have nothing to do, but keep original text */
782 }
783 else {
784 int len = max(lstrlenW(callback.item.pszText) + 1,
785 TEXT_CALLBACK_SIZE);
786 LPWSTR newText = ReAlloc(wineItem->pszText, len);
787
788 TRACE("returned wstr %s, len=%d\n",
789 debugstr_w(callback.item.pszText), len);
790
791 if (newText)
792 {
793 wineItem->pszText = newText;
794 strcpyW(wineItem->pszText, callback.item.pszText);
795 wineItem->cchTextMax = len;
796 }
797 /* If ReAlloc fails we have nothing to do, but keep original text */
798 }
799 }
800 else if (mask & TVIF_TEXT) {
801 /* User put text into our buffer, that is ok unless A string */
802 if (!infoPtr->bNtfUnicode) {
803 LPWSTR newText;
804 LPWSTR oldText = NULL;
805 int buflen;
806 int len = MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 NULL, 0);
809 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
810 newText = (LPWSTR)Alloc(buflen);
811
812 TRACE("same buffer str %s, len=%d, buflen=%d\n",
813 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
814
815 if (newText)
816 {
817 oldText = wineItem->pszText;
818 wineItem->pszText = newText;
819 MultiByteToWideChar( CP_ACP, 0,
820 (LPSTR)callback.item.pszText, -1,
821 wineItem->pszText, buflen/sizeof(WCHAR));
822 wineItem->cchTextMax = buflen/sizeof(WCHAR);
823 if (oldText)
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(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(TREEVIEW_INFO *infoPtr,
865 TREEVIEW_ITEM *item)
866 {
867 /* Same effect, different optimisation. */
868 #if 0
869 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
870 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
871 #else
872 BOOL lar = ((infoPtr->dwStyle
873 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
874 > TVS_LINESATROOT);
875 #endif
876
877 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
878 - infoPtr->scrollX;
879 item->stateOffset = item->linesOffset + infoPtr->uIndent;
880 item->imageOffset = item->stateOffset
881 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
882 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
883 }
884
885 static VOID
886 TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
887 {
888 HDC hdc;
889 HFONT hOldFont=0;
890 SIZE sz;
891
892 /* DRAW's OM docker creates items like this */
893 if (item->pszText == NULL)
894 {
895 item->textWidth = 0;
896 return;
897 }
898
899 if (hDC != 0)
900 {
901 hdc = hDC;
902 }
903 else
904 {
905 hdc = GetDC(infoPtr->hwnd);
906 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
907 }
908
909 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
910 item->textWidth = sz.cx;
911
912 if (hDC == 0)
913 {
914 SelectObject(hdc, hOldFont);
915 ReleaseDC(0, hdc);
916 }
917 }
918
919 static VOID
920 TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
921 {
922 item->rect.top = infoPtr->uItemHeight *
923 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
924
925 item->rect.bottom = item->rect.top
926 + infoPtr->uItemHeight * item->iIntegral - 1;
927
928 item->rect.left = 0;
929 item->rect.right = infoPtr->clientWidth;
930 }
931
932 /* We know that only items after start need their order updated. */
933 static void
934 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
935 {
936 TREEVIEW_ITEM *item;
937 int order;
938
939 if (!start)
940 {
941 start = infoPtr->root->firstChild;
942 order = 0;
943 }
944 else
945 order = start->visibleOrder;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 item->visibleOrder = order;
951 order += item->iIntegral;
952 }
953
954 infoPtr->maxVisibleOrder = order;
955
956 for (item = start; item != NULL;
957 item = TREEVIEW_GetNextListItem(infoPtr, item))
958 {
959 TREEVIEW_ComputeItemRect(infoPtr, item);
960 }
961 }
962
963
964 /* Update metrics of all items in selected subtree.
965 * root must be expanded
966 */
967 static VOID
968 TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
969 {
970 TREEVIEW_ITEM *sibling;
971 HDC hdc;
972 HFONT hOldFont;
973
974 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
975 return;
976
977 root->state &= ~TVIS_EXPANDED;
978 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
979 root->state |= TVIS_EXPANDED;
980
981 hdc = GetDC(infoPtr->hwnd);
982 hOldFont = SelectObject(hdc, infoPtr->hFont);
983
984 for (; root != sibling;
985 root = TREEVIEW_GetNextListItem(infoPtr, root))
986 {
987 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
988
989 if (root->callbackMask & TVIF_TEXT)
990 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
991
992 if (root->textWidth == 0)
993 {
994 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
995 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
996 }
997 }
998
999 SelectObject(hdc, hOldFont);
1000 ReleaseDC(infoPtr->hwnd, hdc);
1001 }
1002
1003 /* Item Allocation **********************************************************/
1004
1005 static TREEVIEW_ITEM *
1006 TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 newItem->iImage = -1;
1014 newItem->iSelectedImage = -1;
1015
1016 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1017 {
1018 Free(newItem);
1019 return NULL;
1020 }
1021
1022 return newItem;
1023 }
1024
1025 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1026 * free item->pszText. */
1027 static void
1028 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1029 {
1030 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1031 Free(item);
1032 if (infoPtr->selectedItem == item)
1033 infoPtr->selectedItem = NULL;
1034 if (infoPtr->hotItem == item)
1035 infoPtr->hotItem = NULL;
1036 if (infoPtr->focusedItem == item)
1037 infoPtr->focusedItem = NULL;
1038 if (infoPtr->firstVisible == item)
1039 infoPtr->firstVisible = NULL;
1040 if (infoPtr->dropItem == item)
1041 infoPtr->dropItem = NULL;
1042 if (infoPtr->insertMarkItem == item)
1043 infoPtr->insertMarkItem = NULL;
1044 }
1045
1046
1047 /* Item Insertion *******************************************************/
1048
1049 /***************************************************************************
1050 * This method inserts newItem before sibling as a child of parent.
1051 * sibling can be NULL, but only if parent has no children.
1052 */
1053 static void
1054 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1055 TREEVIEW_ITEM *parent)
1056 {
1057 assert(newItem != NULL);
1058 assert(parent != NULL);
1059
1060 if (sibling != NULL)
1061 {
1062 assert(sibling->parent == parent);
1063
1064 if (sibling->prevSibling != NULL)
1065 sibling->prevSibling->nextSibling = newItem;
1066
1067 newItem->prevSibling = sibling->prevSibling;
1068 sibling->prevSibling = newItem;
1069 }
1070 else
1071 newItem->prevSibling = NULL;
1072
1073 newItem->nextSibling = sibling;
1074
1075 if (parent->firstChild == sibling)
1076 parent->firstChild = newItem;
1077
1078 if (parent->lastChild == NULL)
1079 parent->lastChild = newItem;
1080 }
1081
1082 /***************************************************************************
1083 * This method inserts newItem after sibling as a child of parent.
1084 * sibling can be NULL, but only if parent has no children.
1085 */
1086 static void
1087 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1088 TREEVIEW_ITEM *parent)
1089 {
1090 assert(newItem != NULL);
1091 assert(parent != NULL);
1092
1093 if (sibling != NULL)
1094 {
1095 assert(sibling->parent == parent);
1096
1097 if (sibling->nextSibling != NULL)
1098 sibling->nextSibling->prevSibling = newItem;
1099
1100 newItem->nextSibling = sibling->nextSibling;
1101 sibling->nextSibling = newItem;
1102 }
1103 else
1104 newItem->nextSibling = NULL;
1105
1106 newItem->prevSibling = sibling;
1107
1108 if (parent->lastChild == sibling)
1109 parent->lastChild = newItem;
1110
1111 if (parent->firstChild == NULL)
1112 parent->firstChild = newItem;
1113 }
1114
1115 static BOOL
1116 TREEVIEW_DoSetItemT(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1117 const TVITEMEXW *tvItem, BOOL isW)
1118 {
1119 UINT callbackClear = 0;
1120 UINT callbackSet = 0;
1121
1122 TRACE("item %p\n", wineItem);
1123 /* Do this first in case it fails. */
1124 if (tvItem->mask & TVIF_TEXT)
1125 {
1126 wineItem->textWidth = 0; /* force width recalculation */
1127 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1128 {
1129 int len;
1130 LPWSTR newText;
1131 if (isW)
1132 len = lstrlenW(tvItem->pszText) + 1;
1133 else
1134 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1135
1136 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 wineItem->pszText = newText;
1143 wineItem->cchTextMax = len;
1144 if (isW)
1145 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1146 else
1147 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1148 wineItem->pszText, len);
1149
1150 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1151 }
1152 else
1153 {
1154 callbackSet |= TVIF_TEXT;
1155
1156 wineItem->pszText = ReAlloc(wineItem->pszText,
1157 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1158 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1159 TRACE("setting callback, item %p\n", wineItem);
1160 }
1161 }
1162
1163 if (tvItem->mask & TVIF_CHILDREN)
1164 {
1165 wineItem->cChildren = tvItem->cChildren;
1166
1167 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1168 callbackSet |= TVIF_CHILDREN;
1169 else
1170 callbackClear |= TVIF_CHILDREN;
1171 }
1172
1173 if (tvItem->mask & TVIF_IMAGE)
1174 {
1175 wineItem->iImage = tvItem->iImage;
1176
1177 if (wineItem->iImage == I_IMAGECALLBACK)
1178 callbackSet |= TVIF_IMAGE;
1179 else
1180 callbackClear |= TVIF_IMAGE;
1181 }
1182
1183 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1184 {
1185 wineItem->iSelectedImage = tvItem->iSelectedImage;
1186
1187 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1188 callbackSet |= TVIF_SELECTEDIMAGE;
1189 else
1190 callbackClear |= TVIF_SELECTEDIMAGE;
1191 }
1192
1193 if (tvItem->mask & TVIF_PARAM)
1194 wineItem->lParam = tvItem->lParam;
1195
1196 /* If the application sets TVIF_INTEGRAL without
1197 * supplying a TVITEMEX structure, it's toast. */
1198 if (tvItem->mask & TVIF_INTEGRAL)
1199 wineItem->iIntegral = tvItem->iIntegral;
1200
1201 if (tvItem->mask & TVIF_STATE)
1202 {
1203 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1204 tvItem->stateMask);
1205 wineItem->state &= ~tvItem->stateMask;
1206 wineItem->state |= (tvItem->state & tvItem->stateMask);
1207 }
1208
1209 wineItem->callbackMask |= callbackSet;
1210 wineItem->callbackMask &= ~callbackClear;
1211
1212 return TRUE;
1213 }
1214
1215 /* Note that the new item is pre-zeroed. */
1216 static LRESULT
1217 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1218 {
1219 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1220 HTREEITEM insertAfter;
1221 TREEVIEW_ITEM *newItem, *parentItem;
1222 BOOL bTextUpdated = FALSE;
1223
1224 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1225 {
1226 parentItem = infoPtr->root;
1227 }
1228 else
1229 {
1230 parentItem = ptdi->hParent;
1231
1232 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1233 {
1234 WARN("invalid parent %p\n", parentItem);
1235 return (LRESULT)(HTREEITEM)NULL;
1236 }
1237 }
1238
1239 insertAfter = ptdi->hInsertAfter;
1240
1241 /* Validate this now for convenience. */
1242 switch ((DWORD_PTR)insertAfter)
1243 {
1244 case (DWORD_PTR)TVI_FIRST:
1245 case (DWORD_PTR)TVI_LAST:
1246 case (DWORD_PTR)TVI_SORT:
1247 break;
1248
1249 default:
1250 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1251 insertAfter->parent != parentItem)
1252 {
1253 WARN("invalid insert after %p\n", insertAfter);
1254 insertAfter = TVI_LAST;
1255 }
1256 }
1257
1258 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1259 (tvItem->mask & TVIF_TEXT)
1260 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1261 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1262 : "<no label>");
1263
1264 newItem = TREEVIEW_AllocateItem(infoPtr);
1265 if (newItem == NULL)
1266 return (LRESULT)(HTREEITEM)NULL;
1267
1268 newItem->parent = parentItem;
1269 newItem->iIntegral = 1;
1270
1271 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1272 return (LRESULT)(HTREEITEM)NULL;
1273
1274 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1275
1276 infoPtr->uNumItems++;
1277
1278 switch ((DWORD_PTR)insertAfter)
1279 {
1280 case (DWORD_PTR)TVI_FIRST:
1281 {
1282 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1283 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1284 if (infoPtr->firstVisible == originalFirst)
1285 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1286 }
1287 break;
1288
1289 case (DWORD_PTR)TVI_LAST:
1290 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1291 break;
1292
1293 /* hInsertAfter names a specific item we want to insert after */
1294 default:
1295 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1296 break;
1297
1298 case (DWORD_PTR)TVI_SORT:
1299 {
1300 TREEVIEW_ITEM *aChild;
1301 TREEVIEW_ITEM *previousChild = NULL;
1302 BOOL bItemInserted = FALSE;
1303
1304 aChild = parentItem->firstChild;
1305
1306 bTextUpdated = TRUE;
1307 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1308
1309 /* Iterate the parent children to see where we fit in */
1310 while (aChild != NULL)
1311 {
1312 INT comp;
1313
1314 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1315 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1316
1317 if (comp < 0) /* we are smaller than the current one */
1318 {
1319 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1320 bItemInserted = TRUE;
1321 break;
1322 }
1323 else if (comp > 0) /* we are bigger than the current one */
1324 {
1325 previousChild = aChild;
1326
1327 /* This will help us to exit if there is no more sibling */
1328 aChild = (aChild->nextSibling == 0)
1329 ? NULL
1330 : aChild->nextSibling;
1331
1332 /* Look at the next item */
1333 continue;
1334 }
1335 else if (comp == 0)
1336 {
1337 /*
1338 * An item with this name is already existing, therefore,
1339 * we add after the one we found
1340 */
1341 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1342 bItemInserted = TRUE;
1343 break;
1344 }
1345 }
1346
1347 /*
1348 * we reach the end of the child list and the item has not
1349 * yet been inserted, therefore, insert it after the last child.
1350 */
1351 if ((!bItemInserted) && (aChild == NULL))
1352 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1353
1354 break;
1355 }
1356 }
1357
1358
1359 TRACE("new item %p; parent %p, mask %x\n", newItem,
1360 newItem->parent, tvItem->mask);
1361
1362 newItem->iLevel = newItem->parent->iLevel + 1;
1363
1364 if (newItem->parent->cChildren == 0)
1365 newItem->parent->cChildren = 1;
1366
1367 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1368 {
1369 if (STATEIMAGEINDEX(newItem->state) == 0)
1370 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1371 }
1372
1373 if (infoPtr->firstVisible == NULL)
1374 infoPtr->firstVisible = newItem;
1375
1376 TREEVIEW_VerifyTree(infoPtr);
1377
1378 if (parentItem == infoPtr->root ||
1379 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1380 {
1381 TREEVIEW_ITEM *item;
1382 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1383
1384 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1385 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1386
1387 if (!bTextUpdated)
1388 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1389
1390 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1391 TREEVIEW_UpdateScrollBars(infoPtr);
1392 /*
1393 * if the item was inserted in a visible part of the tree,
1394 * invalidate it, as well as those after it
1395 */
1396 for (item = newItem;
1397 item != NULL;
1398 item = TREEVIEW_GetNextListItem(infoPtr, item))
1399 TREEVIEW_Invalidate(infoPtr, item);
1400 }
1401 else
1402 {
1403 newItem->visibleOrder = -1;
1404
1405 /* refresh treeview if newItem is the first item inserted under parentItem */
1406 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1407 {
1408 /* parent got '+' - update it */
1409 TREEVIEW_Invalidate(infoPtr, parentItem);
1410 }
1411 }
1412
1413 return (LRESULT)newItem;
1414 }
1415
1416 /* Item Deletion ************************************************************/
1417 static void
1418 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1419
1420 static void
1421 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
1422 {
1423 TREEVIEW_ITEM *kill = parentItem->firstChild;
1424
1425 while (kill != NULL)
1426 {
1427 TREEVIEW_ITEM *next = kill->nextSibling;
1428
1429 TREEVIEW_RemoveItem(infoPtr, kill);
1430
1431 kill = next;
1432 }
1433
1434 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1435 assert(parentItem->firstChild == NULL);
1436 assert(parentItem->lastChild == NULL);
1437 }
1438
1439 static void
1440 TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
1441 {
1442 TREEVIEW_ITEM *parentItem = item->parent;
1443
1444 assert(item != NULL);
1445 assert(item->parent != NULL); /* i.e. it must not be the root */
1446
1447 if (parentItem->firstChild == item)
1448 parentItem->firstChild = item->nextSibling;
1449
1450 if (parentItem->lastChild == item)
1451 parentItem->lastChild = item->prevSibling;
1452
1453 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1454 && parentItem->cChildren > 0)
1455 parentItem->cChildren = 0;
1456
1457 if (item->prevSibling)
1458 item->prevSibling->nextSibling = item->nextSibling;
1459
1460 if (item->nextSibling)
1461 item->nextSibling->prevSibling = item->prevSibling;
1462 }
1463
1464 static void
1465 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1466 {
1467 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1468
1469 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1470 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1471
1472 if (wineItem->firstChild)
1473 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1474
1475 TREEVIEW_UnlinkItem(wineItem);
1476
1477 infoPtr->uNumItems--;
1478
1479 if (wineItem->pszText && wineItem->pszText != LPSTR_TEXTCALLBACKW)
1480 Free(wineItem->pszText);
1481
1482 TREEVIEW_FreeItem(infoPtr, wineItem);
1483 }
1484
1485
1486 /* Empty out the tree. */
1487 static void
1488 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1489 {
1490 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1491
1492 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1493 }
1494
1495 static LRESULT
1496 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1497 {
1498 TREEVIEW_ITEM *newSelection = NULL;
1499 TREEVIEW_ITEM *newFirstVisible = NULL;
1500 TREEVIEW_ITEM *parent, *prev = NULL;
1501 BOOL visible = FALSE;
1502
1503 if (wineItem == TVI_ROOT)
1504 {
1505 TRACE("TVI_ROOT\n");
1506 parent = infoPtr->root;
1507 newSelection = NULL;
1508 visible = TRUE;
1509 TREEVIEW_RemoveTree(infoPtr);
1510 }
1511 else
1512 {
1513 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1514 return FALSE;
1515
1516 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1517 parent = wineItem->parent;
1518
1519 if (ISVISIBLE(wineItem))
1520 {
1521 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1522 visible = TRUE;
1523 }
1524
1525 if (infoPtr->selectedItem != NULL
1526 && (wineItem == infoPtr->selectedItem
1527 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1528 {
1529 if (wineItem->nextSibling)
1530 newSelection = wineItem->nextSibling;
1531 else if (wineItem->parent != infoPtr->root)
1532 newSelection = wineItem->parent;
1533 else
1534 newSelection = wineItem->prevSibling;
1535 TRACE("newSelection = %p\n", newSelection);
1536 }
1537
1538 if (infoPtr->firstVisible == wineItem)
1539 {
1540 if (wineItem->nextSibling)
1541 newFirstVisible = wineItem->nextSibling;
1542 else if (wineItem->prevSibling)
1543 newFirstVisible = wineItem->prevSibling;
1544 else if (wineItem->parent != infoPtr->root)
1545 newFirstVisible = wineItem->parent;
1546 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1547 }
1548 else
1549 newFirstVisible = infoPtr->firstVisible;
1550
1551 TREEVIEW_RemoveItem(infoPtr, wineItem);
1552 }
1553
1554 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1555 if (!infoPtr->selectedItem && newSelection)
1556 {
1557 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1558 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1559 }
1560
1561 /* Validate insertMark dropItem.
1562 * hotItem ??? - used for comparison only.
1563 */
1564 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1565 infoPtr->insertMarkItem = 0;
1566
1567 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1568 infoPtr->dropItem = 0;
1569
1570 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1571 newFirstVisible = infoPtr->root->firstChild;
1572
1573 TREEVIEW_VerifyTree(infoPtr);
1574
1575
1576 if (visible)
1577 {
1578 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1579 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1580 TREEVIEW_UpdateScrollBars(infoPtr);
1581 TREEVIEW_Invalidate(infoPtr, NULL);
1582 }
1583 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1584 {
1585 /* parent lost '+/-' - update it */
1586 TREEVIEW_Invalidate(infoPtr, parent);
1587 }
1588
1589 return TRUE;
1590 }
1591
1592
1593 /* Get/Set Messages *********************************************************/
1594 static LRESULT
1595 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1596 {
1597 if(wParam)
1598 infoPtr->bRedraw = TRUE;
1599 else
1600 infoPtr->bRedraw = FALSE;
1601
1602 return 0;
1603 }
1604
1605 static LRESULT
1606 TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
1607 {
1608 TRACE("\n");
1609 return infoPtr->uIndent;
1610 }
1611
1612 static LRESULT
1613 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1614 {
1615 TRACE("\n");
1616
1617 if (newIndent < MINIMUM_INDENT)
1618 newIndent = MINIMUM_INDENT;
1619
1620 if (infoPtr->uIndent != newIndent)
1621 {
1622 infoPtr->uIndent = newIndent;
1623 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1624 TREEVIEW_UpdateScrollBars(infoPtr);
1625 TREEVIEW_Invalidate(infoPtr, NULL);
1626 }
1627
1628 return 0;
1629 }
1630
1631
1632 static LRESULT
1633 TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
1634 {
1635 TRACE("\n");
1636 return (LRESULT)infoPtr->hwndToolTip;
1637 }
1638
1639 static LRESULT
1640 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1641 {
1642 HWND prevToolTip;
1643
1644 TRACE("\n");
1645 prevToolTip = infoPtr->hwndToolTip;
1646 infoPtr->hwndToolTip = hwndTT;
1647
1648 return (LRESULT)prevToolTip;
1649 }
1650
1651 static LRESULT
1652 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1653 {
1654 BOOL rc = infoPtr->bNtfUnicode;
1655 infoPtr->bNtfUnicode = fUnicode;
1656 return rc;
1657 }
1658
1659 static LRESULT
1660 TREEVIEW_GetUnicodeFormat(TREEVIEW_INFO *infoPtr)
1661 {
1662 return infoPtr->bNtfUnicode;
1663 }
1664
1665 static LRESULT
1666 TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
1667 {
1668 return infoPtr->uScrollTime;
1669 }
1670
1671 static LRESULT
1672 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1673 {
1674 UINT uOldScrollTime = infoPtr->uScrollTime;
1675
1676 infoPtr->uScrollTime = min(uScrollTime, 100);
1677
1678 return uOldScrollTime;
1679 }
1680
1681
1682 static LRESULT
1683 TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
1684 {
1685 TRACE("\n");
1686
1687 switch (wParam)
1688 {
1689 case (WPARAM)TVSIL_NORMAL:
1690 return (LRESULT)infoPtr->himlNormal;
1691
1692 case (WPARAM)TVSIL_STATE:
1693 return (LRESULT)infoPtr->himlState;
1694
1695 default:
1696 return 0;
1697 }
1698 }
1699
1700 #define TVHEIGHT_MIN 16
1701 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1702
1703 /* Compute the natural height for items. */
1704 static UINT
1705 TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
1706 {
1707 TEXTMETRICW tm;
1708 HDC hdc = GetDC(0);
1709 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1710 UINT height;
1711
1712 /* Height is the maximum of:
1713 * 16 (a hack because our fonts are tiny), and
1714 * The text height + border & margin, and
1715 * The size of the normal image list
1716 */
1717 GetTextMetricsW(hdc, &tm);
1718 SelectObject(hdc, hOldFont);
1719 ReleaseDC(0, hdc);
1720
1721 height = TVHEIGHT_MIN;
1722 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1723 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1724 if (height < infoPtr->normalImageHeight)
1725 height = infoPtr->normalImageHeight;
1726 return height;
1727 }
1728
1729 static LRESULT
1730 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1731 {
1732 HIMAGELIST himlOld = 0;
1733 int oldWidth = infoPtr->normalImageWidth;
1734 int oldHeight = infoPtr->normalImageHeight;
1735
1736
1737 TRACE("%x,%p\n", wParam, himlNew);
1738
1739 switch (wParam)
1740 {
1741 case (WPARAM)TVSIL_NORMAL:
1742 himlOld = infoPtr->himlNormal;
1743 infoPtr->himlNormal = himlNew;
1744
1745 if (himlNew != NULL)
1746 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1747 &infoPtr->normalImageHeight);
1748 else
1749 {
1750 infoPtr->normalImageWidth = 0;
1751 infoPtr->normalImageHeight = 0;
1752 }
1753
1754 break;
1755
1756 case (WPARAM)TVSIL_STATE:
1757 himlOld = infoPtr->himlState;
1758 infoPtr->himlState = himlNew;
1759
1760 if (himlNew != NULL)
1761 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1762 &infoPtr->stateImageHeight);
1763 else
1764 {
1765 infoPtr->stateImageWidth = 0;
1766 infoPtr->stateImageHeight = 0;
1767 }
1768
1769 break;
1770 }
1771
1772 if (oldWidth != infoPtr->normalImageWidth ||
1773 oldHeight != infoPtr->normalImageHeight)
1774 {
1775 BOOL bRecalcVisible = FALSE;
1776
1777 if (oldHeight != infoPtr->normalImageHeight &&
1778 !infoPtr->bHeightSet)
1779 {
1780 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1781 bRecalcVisible = TRUE;
1782 }
1783
1784 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1785 infoPtr->normalImageWidth != infoPtr->uIndent)
1786 {
1787 infoPtr->uIndent = infoPtr->normalImageWidth;
1788 bRecalcVisible = TRUE;
1789 }
1790
1791 if (bRecalcVisible)
1792 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1793
1794 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1795 TREEVIEW_UpdateScrollBars(infoPtr);
1796 }
1797
1798 TREEVIEW_Invalidate(infoPtr, NULL);
1799
1800 return (LRESULT)himlOld;
1801 }
1802
1803 static LRESULT
1804 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1805 {
1806 INT prevHeight = infoPtr->uItemHeight;
1807
1808 TRACE("%d\n", newHeight);
1809 if (newHeight == -1)
1810 {
1811 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1812 infoPtr->bHeightSet = FALSE;
1813 }
1814 else
1815 {
1816 infoPtr->uItemHeight = newHeight;
1817 infoPtr->bHeightSet = TRUE;
1818 }
1819
1820 /* Round down, unless we support odd ("non even") heights. */
1821 if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
1822 infoPtr->uItemHeight &= ~1;
1823
1824 if (infoPtr->uItemHeight != prevHeight)
1825 {
1826 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1827 TREEVIEW_UpdateScrollBars(infoPtr);
1828 TREEVIEW_Invalidate(infoPtr, NULL);
1829 }
1830
1831 return prevHeight;
1832 }
1833
1834 static LRESULT
1835 TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
1836 {
1837 TRACE("\n");
1838 return infoPtr->uItemHeight;
1839 }
1840
1841
1842 static LRESULT
1843 TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
1844 {
1845 TRACE("%p\n", infoPtr->hFont);
1846 return (LRESULT)infoPtr->hFont;
1847 }
1848
1849
1850 static INT CALLBACK
1851 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1852 {
1853 (void)unused;
1854
1855 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1856
1857 return 1;
1858 }
1859
1860 static LRESULT
1861 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1862 {
1863 UINT uHeight = infoPtr->uItemHeight;
1864
1865 TRACE("%p %i\n", hFont, bRedraw);
1866
1867 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1868
1869 DeleteObject(infoPtr->hBoldFont);
1870 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1871 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1872
1873 if (!infoPtr->bHeightSet)
1874 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1875
1876 if (uHeight != infoPtr->uItemHeight)
1877 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1878
1879 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1880
1881 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1882 TREEVIEW_UpdateScrollBars(infoPtr);
1883
1884 if (bRedraw)
1885 TREEVIEW_Invalidate(infoPtr, NULL);
1886
1887 return 0;
1888 }
1889
1890
1891 static LRESULT
1892 TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
1893 {
1894 TRACE("\n");
1895 return (LRESULT)infoPtr->clrLine;
1896 }
1897
1898 static LRESULT
1899 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1900 {
1901 COLORREF prevColor = infoPtr->clrLine;
1902
1903 TRACE("\n");
1904 infoPtr->clrLine = color;
1905 return (LRESULT)prevColor;
1906 }
1907
1908
1909 static LRESULT
1910 TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
1911 {
1912 TRACE("\n");
1913 return (LRESULT)infoPtr->clrText;
1914 }
1915
1916 static LRESULT
1917 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1918 {
1919 COLORREF prevColor = infoPtr->clrText;
1920
1921 TRACE("\n");
1922 infoPtr->clrText = color;
1923
1924 if (infoPtr->clrText != prevColor)
1925 TREEVIEW_Invalidate(infoPtr, NULL);
1926
1927 return (LRESULT)prevColor;
1928 }
1929
1930
1931 static LRESULT
1932 TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
1933 {
1934 TRACE("\n");
1935 return (LRESULT)infoPtr->clrBk;
1936 }
1937
1938 static LRESULT
1939 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1940 {
1941 COLORREF prevColor = infoPtr->clrBk;
1942
1943 TRACE("\n");
1944 infoPtr->clrBk = newColor;
1945
1946 if (newColor != prevColor)
1947 TREEVIEW_Invalidate(infoPtr, NULL);
1948
1949 return (LRESULT)prevColor;
1950 }
1951
1952
1953 static LRESULT
1954 TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
1955 {
1956 TRACE("\n");
1957 return (LRESULT)infoPtr->clrInsertMark;
1958 }
1959
1960 static LRESULT
1961 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1962 {
1963 COLORREF prevColor = infoPtr->clrInsertMark;
1964
1965 TRACE("%lx\n", color);
1966 infoPtr->clrInsertMark = color;
1967
1968 return (LRESULT)prevColor;
1969 }
1970
1971
1972 static LRESULT
1973 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1974 {
1975 TRACE("%d %p\n", wParam, item);
1976
1977 if (!TREEVIEW_ValidItem(infoPtr, item))
1978 return 0;
1979
1980 infoPtr->insertBeforeorAfter = wParam;
1981 infoPtr->insertMarkItem = item;
1982
1983 TREEVIEW_Invalidate(infoPtr, NULL);
1984
1985 return 1;
1986 }
1987
1988
1989 /************************************************************************
1990 * Some serious braindamage here. lParam is a pointer to both the
1991 * input HTREEITEM and the output RECT.
1992 */
1993 static LRESULT
1994 TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1995 {
1996 TREEVIEW_ITEM *wineItem;
1997 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
1998
1999 TRACE("\n");
2000 /*
2001 * validate parameters
2002 */
2003 if (pItem == NULL)
2004 return FALSE;
2005
2006 wineItem = *pItem;
2007 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2008 return FALSE;
2009
2010 /*
2011 * If wParam is TRUE return the text size otherwise return
2012 * the whole item size
2013 */
2014 if (fTextRect)
2015 {
2016 /* Windows does not send TVN_GETDISPINFO here. */
2017
2018 lpRect->top = wineItem->rect.top;
2019 lpRect->bottom = wineItem->rect.bottom;
2020
2021 lpRect->left = wineItem->textOffset;
2022 lpRect->right = wineItem->textOffset + wineItem->textWidth;
2023 }
2024 else
2025 {
2026 *lpRect = wineItem->rect;
2027 }
2028
2029 TRACE("%s [L:%ld R:%ld T:%ld B:%ld]\n", fTextRect ? "text" : "item",
2030 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2031
2032 return TRUE;
2033 }
2034
2035 static inline LRESULT
2036 TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
2037 {
2038 /* Suprise! This does not take integral height into account. */
2039 return infoPtr->clientHeight / infoPtr->uItemHeight;
2040 }
2041
2042
2043 static LRESULT
2044 TREEVIEW_GetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2045 {
2046 TREEVIEW_ITEM *wineItem;
2047
2048 wineItem = tvItem->hItem;
2049 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2050 return FALSE;
2051
2052 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2053
2054 if (tvItem->mask & TVIF_CHILDREN)
2055 {
2056 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2057 FIXME("I_CHILDRENCALLBACK not supported\n");
2058 tvItem->cChildren = wineItem->cChildren;
2059 }
2060
2061 if (tvItem->mask & TVIF_HANDLE)
2062 tvItem->hItem = wineItem;
2063
2064 if (tvItem->mask & TVIF_IMAGE)
2065 tvItem->iImage = wineItem->iImage;
2066
2067 if (tvItem->mask & TVIF_INTEGRAL)
2068 tvItem->iIntegral = wineItem->iIntegral;
2069
2070 /* undocumented: windows ignores TVIF_PARAM and
2071 * * always sets lParam
2072 */
2073 tvItem->lParam = wineItem->lParam;
2074
2075 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2076 tvItem->iSelectedImage = wineItem->iSelectedImage;
2077
2078 if (tvItem->mask & TVIF_STATE)
2079 /* Careful here - Windows ignores the stateMask when you get the state
2080 That contradicts the documentation, but makes more common sense, masking
2081 retrieval in this way seems overkill */
2082 tvItem->state = wineItem->state;
2083
2084 if (tvItem->mask & TVIF_TEXT)
2085 {
2086 if (isW)
2087 {
2088 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2089 {
2090 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2091 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2092 }
2093 else
2094 {
2095 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2096 }
2097 }
2098 else
2099 {
2100 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2101 {
2102 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2103 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2104 }
2105 else
2106 {
2107 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2108 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2109 }
2110 }
2111 }
2112 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2113 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2114
2115 return TRUE;
2116 }
2117
2118 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2119 * which is wrong. */
2120 static LRESULT
2121 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2122 {
2123 TREEVIEW_ITEM *wineItem;
2124 TREEVIEW_ITEM originalItem;
2125
2126 wineItem = tvItem->hItem;
2127
2128 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2129 tvItem->mask);
2130
2131 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2132 return FALSE;
2133
2134 /* store the orignal item values */
2135 originalItem = *wineItem;
2136
2137 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2138 return FALSE;
2139
2140 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2141 if ((tvItem->mask & TVIF_TEXT
2142 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2143 && ISVISIBLE(wineItem))
2144 {
2145 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2146 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2147 }
2148
2149 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2150 {
2151 /* The refresh updates everything, but we can't wait until then. */
2152 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2153
2154 /* if any of the item's values changed and it's not a callback, redraw the item */
2155 if (item_changed(&originalItem, wineItem, tvItem))
2156 {
2157 if (tvItem->mask & TVIF_INTEGRAL)
2158 {
2159 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2160 TREEVIEW_UpdateScrollBars(infoPtr);
2161
2162 TREEVIEW_Invalidate(infoPtr, NULL);
2163 }
2164 else
2165 {
2166 TREEVIEW_UpdateScrollBars(infoPtr);
2167 TREEVIEW_Invalidate(infoPtr, wineItem);
2168 }
2169 }
2170 }
2171
2172 return TRUE;
2173 }
2174
2175 static LRESULT
2176 TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2177 {
2178 TRACE("\n");
2179
2180 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2181 return 0;
2182
2183 return (wineItem->state & mask);
2184 }
2185
2186 static LRESULT
2187 TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2188 {
2189 TREEVIEW_ITEM *retval;
2190
2191 retval = 0;
2192
2193 /* handle all the global data here */
2194 switch (which)
2195 {
2196 case TVGN_CHILD: /* Special case: child of 0 is root */
2197 if (wineItem)
2198 break;
2199 /* fall through */
2200 case TVGN_ROOT:
2201 retval = infoPtr->root->firstChild;
2202 break;
2203
2204 case TVGN_CARET:
2205 retval = infoPtr->selectedItem;
2206 break;
2207
2208 case TVGN_FIRSTVISIBLE:
2209 retval = infoPtr->firstVisible;
2210 break;
2211
2212 case TVGN_DROPHILITE:
2213 retval = infoPtr->dropItem;
2214 break;
2215
2216 case TVGN_LASTVISIBLE:
2217 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2218 break;
2219 }
2220
2221 if (retval)
2222 {
2223 TRACE("flags:%x, returns %p\n", which, retval);
2224 return (LRESULT)retval;
2225 }
2226
2227 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2228
2229 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2230 return FALSE;
2231
2232 switch (which)
2233 {
2234 case TVGN_NEXT:
2235 retval = wineItem->nextSibling;
2236 break;
2237 case TVGN_PREVIOUS:
2238 retval = wineItem->prevSibling;
2239 break;
2240 case TVGN_PARENT:
2241 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2242 break;
2243 case TVGN_CHILD:
2244 retval = wineItem->firstChild;
2245 break;
2246 case TVGN_NEXTVISIBLE:
2247 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2248 break;
2249 case TVGN_PREVIOUSVISIBLE:
2250 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2251 break;
2252 default:
2253 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2254 break;
2255 }
2256
2257 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2258 return (LRESULT)retval;
2259 }
2260
2261
2262 static LRESULT
2263 TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
2264 {
2265 TRACE(" %d\n", infoPtr->uNumItems);
2266 return (LRESULT)infoPtr->uNumItems;
2267 }
2268
2269 static VOID
2270 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2271 {
2272 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2273 {
2274 static const unsigned int state_table[] = { 0, 2, 1 };
2275
2276 unsigned int state;
2277
2278 state = STATEIMAGEINDEX(item->state);
2279 TRACE("state:%x\n", state);
2280 item->state &= ~TVIS_STATEIMAGEMASK;
2281
2282 if (state < 3)
2283 state = state_table[state];
2284
2285 item->state |= INDEXTOSTATEIMAGEMASK(state);
2286
2287 TRACE("state:%x\n", state);
2288 TREEVIEW_Invalidate(infoPtr, item);
2289 }
2290 }
2291
2292
2293 /* Painting *************************************************************/
2294
2295 /* Draw the lines and expand button for an item. Also draws one section
2296 * of the line from item's parent to item's parent's next sibling. */
2297 static void
2298 TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2299 {
2300 LONG centerx, centery;
2301 BOOL lar = ((infoPtr->dwStyle
2302 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2303 > TVS_LINESATROOT);
2304 HBRUSH hbr, hbrOld;
2305
2306 if (!lar && item->iLevel == 0)
2307 return;
2308
2309 hbr = CreateSolidBrush(infoPtr->clrBk);
2310 hbrOld = SelectObject(hdc, hbr);
2311
2312 centerx = (item->linesOffset + item->stateOffset) / 2;
2313 centery = (item->rect.top + item->rect.bottom) / 2;
2314
2315 if (infoPtr->dwStyle & TVS_HASLINES)
2316 {
2317 HPEN hOldPen, hNewPen;
2318 HTREEITEM parent;
2319 LOGBRUSH lb;
2320
2321 /*
2322 * Get a dotted grey pen
2323 */
2324 lb.lbStyle = BS_SOLID;
2325 lb.lbColor = infoPtr->clrLine;
2326 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2327 hOldPen = SelectObject(hdc, hNewPen);
2328
2329 MoveToEx(hdc, item->stateOffset, centery, NULL);
2330 LineTo(hdc, centerx - 1, centery);
2331
2332 if (item->prevSibling || item->parent != infoPtr->root)
2333 {
2334 MoveToEx(hdc, centerx, item->rect.top, NULL);
2335 LineTo(hdc, centerx, centery);
2336 }
2337
2338 if (item->nextSibling)
2339 {
2340 MoveToEx(hdc, centerx, centery, NULL);
2341 LineTo(hdc, centerx, item->rect.bottom + 1);
2342 }
2343
2344 /* Draw the line from our parent to its next sibling. */
2345 parent = item->parent;
2346 while (parent != infoPtr->root)
2347 {
2348 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2349
2350 if (parent->nextSibling
2351 /* skip top-levels unless TVS_LINESATROOT */
2352 && parent->stateOffset > parent->linesOffset)
2353 {
2354 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2355 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2356 }
2357
2358 parent = parent->parent;
2359 }
2360
2361 SelectObject(hdc, hOldPen);
2362 DeleteObject(hNewPen);
2363 }
2364
2365 /*
2366 * Display the (+/-) signs
2367 */
2368
2369 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2370 {
2371 if (item->cChildren)
2372 {
2373 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2374 if (theme)
2375 {
2376 RECT glyphRect = item->rect;
2377 glyphRect.left = item->linesOffset;
2378 glyphRect.right = item->stateOffset;
2379 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2380 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2381 &glyphRect, NULL);
2382 }
2383 else
2384 {
2385 LONG height = item->rect.bottom - item->rect.top;
2386 LONG width = item->stateOffset - item->linesOffset;
2387 LONG rectsize = min(height, width) / 4;
2388 /* plussize = ceil(rectsize * 3/4) */
2389 LONG plussize = (rectsize + 1) * 3 / 4;
2390
2391 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2392 HPEN hOldPen = SelectObject(hdc, hNewPen);
2393
2394 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2395 centerx + rectsize + 2, centery + rectsize + 2);
2396
2397 SelectObject(hdc, hOldPen);
2398 DeleteObject(hNewPen);
2399
2400 if (height < 18 || width < 18)
2401 {
2402 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2403 LineTo(hdc, centerx + plussize, centery);
2404
2405 if (!(item->state & TVIS_EXPANDED))
2406 {
2407 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2408 LineTo(hdc, centerx, centery + plussize);
2409 }
2410 }
2411 else
2412 {
2413 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2414 centerx + plussize, centery + 2);
2415
2416 if (!(item->state & TVIS_EXPANDED))
2417 {
2418 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2419 centerx + 2, centery + plussize);
2420 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2421 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2422 }
2423 }
2424 }
2425 }
2426 }
2427 SelectObject(hdc, hbrOld);
2428 DeleteObject(hbr);
2429 }
2430
2431 static void
2432 TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2433 {
2434 INT cditem;
2435 HFONT hOldFont;
2436 COLORREF oldTextColor, oldTextBkColor;
2437 int centery;
2438 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2439 NMTVCUSTOMDRAW nmcdhdr;
2440
2441 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2442
2443 /* - If item is drop target or it is selected and window is in focus -
2444 * use blue background (COLOR_HIGHLIGHT).
2445 * - If item is selected, window is not in focus, but it has style
2446 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2447 * - Otherwise - use background color
2448 */
2449 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2450 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2451 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2452 {
2453 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2454 {
2455 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2456 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2457 }
2458 else
2459 {
2460 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2461 if (infoPtr->clrText == -1)
2462 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2463 else
2464 nmcdhdr.clrText = infoPtr->clrText;
2465 }
2466 }
2467 else
2468 {
2469 nmcdhdr.clrTextBk = infoPtr->clrBk;
2470 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2471 nmcdhdr.clrText = comctl32_color.clrHighlight;
2472 else if (infoPtr->clrText == -1)
2473 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2474 else
2475 nmcdhdr.clrText = infoPtr->clrText;
2476 }
2477
2478 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2479
2480 /* The custom draw handler can query the text rectangle,
2481 * so get ready. */
2482 /* should already be known, set to 0 when changed */
2483 if (!wineItem->textWidth)
2484 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2485
2486 cditem = 0;
2487
2488 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2489 {
2490 cditem = TREEVIEW_SendCustomDrawItemNotify
2491 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2492 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2493
2494 if (cditem & CDRF_SKIPDEFAULT)
2495 {
2496 SelectObject(hdc, hOldFont);
2497 return;
2498 }
2499 }
2500
2501 if (cditem & CDRF_NEWFONT)
2502 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2503
2504 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2505
2506 /* Set colors. Custom draw handler can change these so we do this after it. */
2507 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2508 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2509
2510 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2511
2512 /*
2513 * Display the images associated with this item
2514 */
2515 {
2516 INT imageIndex;
2517
2518 /* State images are displayed to the left of the Normal image
2519 * image number is in state; zero should be `display no image'.
2520 */
2521 imageIndex = STATEIMAGEINDEX(wineItem->state);
2522
2523 if (infoPtr->himlState && imageIndex)
2524 {
2525 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2526 wineItem->stateOffset,
2527 centery - infoPtr->stateImageHeight / 2,
2528 ILD_NORMAL);
2529 }
2530
2531 /* Now, draw the normal image; can be either selected or
2532 * non-selected image.
2533 */
2534
2535 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2536 {
2537 /* The item is currently selected */
2538 imageIndex = wineItem->iSelectedImage;
2539 }
2540 else
2541 {
2542 /* The item is not selected */
2543 imageIndex = wineItem->iImage;
2544 }
2545
2546 if (infoPtr->himlNormal)
2547 {
2548 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2549
2550 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2551 wineItem->imageOffset,
2552 centery - infoPtr->normalImageHeight / 2,
2553 ILD_NORMAL | ovlIdx);
2554 }
2555 }
2556
2557
2558 /*
2559 * Display the text associated with this item
2560 */
2561
2562 /* Don't paint item's text if it's being edited */
2563 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2564 {
2565 if (wineItem->pszText)
2566 {
2567 RECT rcText;
2568
2569 rcText.top = wineItem->rect.top;
2570 rcText.bottom = wineItem->rect.bottom;
2571 rcText.left = wineItem->textOffset;
2572 rcText.right = rcText.left + wineItem->textWidth + 4;
2573
2574 TRACE("drawing text %s at (%ld,%ld)-(%ld,%ld)\n",
2575 debugstr_w(wineItem->pszText),
2576 rcText.left, rcText.top, rcText.right, rcText.bottom);
2577
2578 /* Draw it */
2579 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2580 ETO_CLIPPED | ETO_OPAQUE,
2581 &rcText,
2582 wineItem->pszText,
2583 lstrlenW(wineItem->pszText),
2584 NULL);
2585
2586 /* Draw the box around the selected item */
2587 if ((wineItem == infoPtr->selectedItem) && inFocus)
2588 {
2589 DrawFocusRect(hdc,&rcText);
2590 }
2591
2592 }
2593 }
2594
2595 /* Draw insertion mark if necessary */
2596
2597 if (infoPtr->insertMarkItem)
2598 TRACE("item:%d,mark:%p\n",
2599 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2600 infoPtr->insertMarkItem);
2601
2602 if (wineItem == infoPtr->insertMarkItem)
2603 {
2604 HPEN hNewPen, hOldPen;
2605 int offset;
2606 int left, right;
2607
2608 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2609 hOldPen = SelectObject(hdc, hNewPen);
2610
2611 if (infoPtr->insertBeforeorAfter)
2612 offset = wineItem->rect.bottom - 1;
2613 else
2614 offset = wineItem->rect.top + 1;
2615
2616 left = wineItem->textOffset - 2;
2617 right = wineItem->textOffset + wineItem->textWidth + 2;
2618
2619 MoveToEx(hdc, left, offset - 3, NULL);
2620 LineTo(hdc, left, offset + 4);
2621
2622 MoveToEx(hdc, left, offset, NULL);
2623 LineTo(hdc, right + 1, offset);
2624
2625 MoveToEx(hdc, right, offset + 3, NULL);
2626 LineTo(hdc, right, offset - 4);
2627
2628 SelectObject(hdc, hOldPen);
2629 DeleteObject(hNewPen);
2630 }
2631
2632 if (cditem & CDRF_NOTIFYPOSTPAINT)
2633 {
2634 cditem = TREEVIEW_SendCustomDrawItemNotify
2635 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2636 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2637 }
2638
2639 /* Restore the hdc state */
2640 SetTextColor(hdc, oldTextColor);
2641 SetBkColor(hdc, oldTextBkColor);
2642 SelectObject(hdc, hOldFont);
2643 }
2644
2645 /* Computes treeHeight and treeWidth and updates the scroll bars.
2646 */
2647 static void
2648 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2649 {
2650 TREEVIEW_ITEM *wineItem;
2651 HWND hwnd = infoPtr->hwnd;
2652 BOOL vert = FALSE;
2653 BOOL horz = FALSE;
2654 SCROLLINFO si;
2655 LONG scrollX = infoPtr->scrollX;
2656
2657 infoPtr->treeWidth = 0;
2658 infoPtr->treeHeight = 0;
2659
2660 /* We iterate through all visible items in order to get the tree height
2661 * and width */
2662 wineItem = infoPtr->root->firstChild;
2663
2664 while (wineItem != NULL)
2665 {
2666 if (ISVISIBLE(wineItem))
2667 {
2668 /* actually we draw text at textOffset + 2 */
2669 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2670 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2671
2672 /* This is scroll-adjusted, but we fix this below. */
2673 infoPtr->treeHeight = wineItem->rect.bottom;
2674 }
2675
2676 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2677 }
2678
2679 /* Fix the scroll adjusted treeHeight and treeWidth. */
2680 if (infoPtr->root->firstChild)
2681 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2682
2683 infoPtr->treeWidth += infoPtr->scrollX;
2684
2685 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2686
2687 /* Adding one scroll bar may take up enough space that it forces us
2688 * to add the other as well. */
2689 if (infoPtr->treeHeight > infoPtr->clientHeight)
2690 {
2691 vert = TRUE;
2692
2693 if (infoPtr->treeWidth
2694 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2695 horz = TRUE;
2696 }
2697 else if (infoPtr->treeWidth > infoPtr->clientWidth)
2698 horz = TRUE;
2699
2700 if (!vert && horz && infoPtr->treeHeight
2701 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2702 vert = TRUE;
2703
2704 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2705
2706 si.cbSize = sizeof(SCROLLINFO);
2707 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2708 si.nMin = 0;
2709
2710 if (vert)
2711 {
2712 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2713 if ( si.nPage && NULL != infoPtr->firstVisible)
2714 {
2715 si.nPos = infoPtr->firstVisible->visibleOrder;
2716 si.nMax = infoPtr->maxVisibleOrder - 1;
2717
2718 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2719
2720 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2721 ShowScrollBar(hwnd, SB_VERT, TRUE);
2722 infoPtr->uInternalStatus |= TV_VSCROLL;
2723 }
2724 else
2725 {
2726 if (infoPtr->uInternalStatus & TV_VSCROLL)
2727 ShowScrollBar(hwnd, SB_VERT, FALSE);
2728 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2729 }
2730 }
2731 else
2732 {
2733 if (infoPtr->uInternalStatus & TV_VSCROLL)
2734 ShowScrollBar(hwnd, SB_VERT, FALSE);
2735 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2736 }
2737
2738 if (horz)
2739 {
2740 si.nPage = infoPtr->clientWidth;
2741 si.nPos = infoPtr->scrollX;
2742 si.nMax = infoPtr->treeWidth - 1;
2743
2744 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2745 {
2746 si.nPos = si.nMax - max( si.nPage-1, 0 );
2747 scrollX = si.nPos;
2748 }
2749
2750 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2751 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2752 infoPtr->uInternalStatus |= TV_HSCROLL;
2753
2754 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2755 }
2756 else
2757 {
2758 if (infoPtr->uInternalStatus & TV_HSCROLL)
2759 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2760 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2761
2762 scrollX = 0;
2763 }
2764
2765 if (infoPtr->scrollX != scrollX)
2766 {
2767 TREEVIEW_HScroll(infoPtr,
2768 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2769 }
2770
2771 if (!horz)
2772 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2773 }
2774
2775 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2776 static LRESULT
2777 TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
2778 {
2779 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2780 RECT rect;
2781
2782 GetClientRect(infoPtr->hwnd, &rect);
2783 FillRect(hDC, &rect, hBrush);
2784 DeleteObject(hBrush);
2785
2786 return 1;
2787 }
2788
2789 static void
2790 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
2791 {
2792 HWND hwnd = infoPtr->hwnd;
2793 RECT rect = *rc;
2794 TREEVIEW_ITEM *wineItem;
2795
2796 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2797 {
2798 TRACE("empty window\n");
2799 return;
2800 }
2801
2802 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2803 hdc, rect);
2804
2805 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2806 {
2807 ReleaseDC(hwnd, hdc);
2808 return;
2809 }
2810
2811 for (wineItem = infoPtr->root->firstChild;
2812 wineItem != NULL;
2813 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2814 {
2815 if (ISVISIBLE(wineItem))
2816 {
2817 /* Avoid unneeded calculations */
2818 if (wineItem->rect.top > rect.bottom)
2819 break;
2820 if (wineItem->rect.bottom < rect.top)
2821 continue;
2822
2823 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2824 }
2825 }
2826
2827 TREEVIEW_UpdateScrollBars(infoPtr);
2828
2829 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2830 infoPtr->cdmode =
2831 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2832 }
2833
2834 static void
2835 TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2836 {
2837 if (item != NULL)
2838 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2839 else
2840 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2841 }
2842
2843 static LRESULT
2844 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2845 {
2846 HDC hdc;
2847 PAINTSTRUCT ps;
2848 RECT rc;
2849
2850 TRACE("\n");
2851
2852 if (wParam)
2853 {
2854 hdc = (HDC)wParam;
2855 GetClientRect(infoPtr->hwnd, &rc);
2856 TREEVIEW_EraseBackground(infoPtr, hdc);
2857 }
2858 else
2859 {
2860 hdc = BeginPaint(infoPtr->hwnd, &ps);
2861 rc = ps.rcPaint;
2862 }
2863
2864 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2865 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2866
2867 if (!wParam)
2868 EndPaint(infoPtr->hwnd, &ps);
2869
2870 return 0;
2871 }
2872
2873
2874 /* Sorting **************************************************************/
2875
2876 /***************************************************************************
2877 * Forward the DPA local callback to the treeview owner callback
2878 */
2879 static INT WINAPI
2880 TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
2881 {
2882 /* Forward the call to the client-defined callback */
2883 return pCallBackSort->lpfnCompare(first->lParam,
2884 second->lParam,
2885 pCallBackSort->lParam);
2886 }
2887
2888 /***************************************************************************
2889 * Treeview native sort routine: sort on item text.
2890 */
2891 static INT WINAPI
2892 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2893 TREEVIEW_INFO *infoPtr)
2894 {
2895 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2896 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2897
2898 if(first->pszText && second->pszText)
2899 return lstrcmpiW(first->pszText, second->pszText);
2900 else if(first->pszText)
2901 return -1;
2902 else if(second->pszText)
2903 return 1;
2904 else
2905 return 0;
2906 }
2907
2908 /* Returns the number of physical children belonging to item. */
2909 static INT
2910 TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2911 {
2912 INT cChildren = 0;
2913 HTREEITEM hti;
2914
2915 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2916 cChildren++;
2917
2918 return cChildren;
2919 }
2920
2921 /* Returns a DPA containing a pointer to each physical child of item in
2922 * sibling order. If item has no children, an empty DPA is returned. */
2923 static HDPA
2924 TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2925 {
2926 HTREEITEM child = item->firstChild;
2927
2928 HDPA list = DPA_Create(8);
2929 if (list == 0) return NULL;
2930
2931 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2932 {
2933 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2934 {
2935 DPA_Destroy(list);
2936 return NULL;
2937 }
2938 }
2939
2940 return list;
2941 }
2942
2943 /***************************************************************************
2944 * Setup the treeview structure with regards of the sort method
2945 * and sort the children of the TV item specified in lParam
2946 * fRecurse: currently unused. Should be zero.
2947 * parent: if pSort!=NULL, should equal pSort->hParent.
2948 * otherwise, item which child items are to be sorted.
2949 * pSort: sort method info. if NULL, sort on item text.
2950 * if non-NULL, sort on item's lParam content, and let the
2951 * application decide what that means. See also TVM_SORTCHILDRENCB.
2952 */
2953
2954 static LRESULT
2955 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2956 LPTVSORTCB pSort)
2957 {
2958 INT cChildren;
2959 PFNDPACOMPARE pfnCompare;
2960 LPARAM lpCompare;
2961
2962 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2963 if (parent == TVI_ROOT || parent == NULL)
2964 parent = infoPtr->root;
2965
2966 /* Check for a valid handle to the parent item */
2967 if (!TREEVIEW_ValidItem(infoPtr, parent))
2968 {
2969 ERR("invalid item hParent=%p\n", parent);
2970 return FALSE;
2971 }
2972
2973 if (pSort)
2974 {
2975 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2976 lpCompare = (LPARAM)pSort;
2977 }
2978 else
2979 {
2980 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2981 lpCompare = (LPARAM)infoPtr;
2982 }
2983
2984 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2985
2986 /* Make sure there is something to sort */
2987 if (cChildren > 1)
2988 {
2989 /* TREEVIEW_ITEM rechaining */
2990 INT count = 0;
2991 HTREEITEM item = 0;
2992 HTREEITEM nextItem = 0;
2993 HTREEITEM prevItem = 0;
2994
2995 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
2996
2997 if (sortList == NULL)
2998 return FALSE;
2999
3000 /* let DPA sort the list */
3001 DPA_Sort(sortList, pfnCompare, lpCompare);
3002
3003 /* The order of DPA entries has been changed, so fixup the
3004 * nextSibling and prevSibling pointers. */
3005
3006 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3007 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3008 {
3009 /* link the two current item toghether */
3010 item->nextSibling = nextItem;
3011 nextItem->prevSibling = item;
3012
3013 if (prevItem == NULL)
3014 {
3015 /* this is the first item, update the parent */
3016 parent->firstChild = item;
3017 item->prevSibling = NULL;
3018 }
3019 else
3020 {
3021 /* fix the back chaining */
3022 item->prevSibling = prevItem;
3023 }
3024
3025 /* get ready for the next one */
3026 prevItem = item;
3027 item = nextItem;
3028 }
3029
3030 /* the last item is pointed to by item and never has a sibling */
3031 item->nextSibling = NULL;
3032 parent->lastChild = item;
3033
3034 DPA_Destroy(sortList);
3035
3036 TREEVIEW_VerifyTree(infoPtr);
3037
3038 if (parent->state & TVIS_EXPANDED)
3039 {
3040 int visOrder = infoPtr->firstVisible->visibleOrder;
3041
3042 if (parent == infoPtr->root)
3043 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3044 else
3045 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3046
3047 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3048 {
3049 TREEVIEW_ITEM *item;
3050
3051 for (item = infoPtr->root->firstChild; item != NULL;
3052 item = TREEVIEW_GetNextListItem(infoPtr, item))
3053 {
3054 if (item->visibleOrder == visOrder)
3055 break;
3056 }
3057
3058 if (!item) item = parent->firstChild;
3059 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3060 }
3061
3062 TREEVIEW_Invalidate(infoPtr, NULL);
3063 }
3064
3065 return TRUE;
3066 }
3067 return FALSE;
3068 }
3069
3070
3071 /***************************************************************************
3072 * Setup the treeview structure with regards of the sort method
3073 * and sort the children of the TV item specified in lParam
3074 */
3075 static LRESULT
3076 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3077 {
3078 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3079 }
3080
3081
3082 /***************************************************************************
3083 * Sort the children of the TV item specified in lParam.
3084 */
3085 static LRESULT
3086 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3087 {
3088 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3089 }
3090
3091
3092 /* Expansion/Collapse ***************************************************/
3093
3094 static BOOL
3095 TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3096 UINT action)
3097 {
3098 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3099 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3100 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3101 0, wineItem);
3102 }
3103
3104 static VOID
3105 TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3106 UINT action)
3107 {
3108 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3109 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3110 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3111 0, wineItem);
3112 }
3113
3114
3115 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3116 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3117 static BOOL
3118 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3119 BOOL bRemoveChildren, BOOL bUser)
3120 {
3121 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3122 BOOL bSetSelection, bSetFirstVisible;
3123 RECT scrollRect;
3124 LONG scrollDist = 0;
3125 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3126
3127 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3128
3129 if (!(wineItem->state & TVIS_EXPANDED))
3130 return FALSE;
3131
3132 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3133 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3134
3135 if (wineItem->firstChild == NULL)
3136 return FALSE;
3137
3138 wineItem->state &= ~TVIS_EXPANDED;
3139
3140 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3141 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3142
3143 bSetSelection = (infoPtr->selectedItem != NULL
3144 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3145
3146 bSetFirstVisible = (infoPtr->firstVisible != NULL
3147 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3148
3149 tmpItem = wineItem;
3150 while (tmpItem)
3151 {
3152 if (tmpItem->nextSibling)
3153 {
3154 nextItem = tmpItem->nextSibling;
3155 break;
3156 }
3157 tmpItem = tmpItem->parent;
3158 }
3159
3160 if (nextItem)
3161 scrollDist = nextItem->rect.top;
3162
3163 if (bRemoveChildren)
3164 {
3165 INT old_cChildren = wineItem->cChildren;
3166 TRACE("TVE_COLLAPSERESET\n");
3167 wineItem->state &= ~TVIS_EXPANDEDONCE;
3168 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3169 wineItem->cChildren = old_cChildren;
3170 }
3171
3172 if (wineItem->firstChild)
3173 {
3174 TREEVIEW_ITEM *item, *sibling;
3175
3176 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3177
3178 for (item = wineItem->firstChild; item != sibling;
3179 item = TREEVIEW_GetNextListItem(infoPtr, item))
3180 {
3181 item->visibleOrder = -1;
3182 }
3183 }
3184
3185 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3186
3187 if (nextItem)
3188 scrollDist = -(scrollDist - nextItem->rect.top);
3189
3190 if (bSetSelection)
3191 {
3192 /* Don't call DoSelectItem, it sends notifications. */
3193 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3194 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3195 wineItem->state |= TVIS_SELECTED;
3196 infoPtr->selectedItem = wineItem;
3197 }
3198
3199 TREEVIEW_UpdateScrollBars(infoPtr);
3200
3201 scrollRect.left = 0;
3202 scrollRect.right = infoPtr->clientWidth;
3203 scrollRect.bottom = infoPtr->clientHeight;
3204
3205 if (nextItem)
3206 {
3207 scrollRect.top = nextItem->rect.top;
3208
3209 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3210 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3211 TREEVIEW_Invalidate(infoPtr, wineItem);
3212 } else {
3213 scrollRect.top = wineItem->rect.top;
3214 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3215 }
3216
3217 TREEVIEW_SetFirstVisible(infoPtr,
3218 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3219 TRUE);
3220
3221 return TRUE;
3222 }
3223
3224 static BOOL
3225 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3226 BOOL bExpandPartial, BOOL bUser)
3227 {
3228 LONG scrollDist;
3229 LONG orgNextTop = 0;
3230 RECT scrollRect;
3231 TREEVIEW_ITEM *nextItem, *tmpItem;
3232
3233 TRACE("\n");
3234
3235 if (wineItem->state & TVIS_EXPANDED)
3236 return TRUE;
3237
3238 tmpItem = wineItem; nextItem = NULL;
3239 while (tmpItem)
3240 {
3241 if (tmpItem->nextSibling)
3242 {
3243 nextItem = tmpItem->nextSibling;
3244 break;
3245 }
3246 tmpItem = tmpItem->parent;
3247 }
3248
3249 if (nextItem)
3250 orgNextTop = nextItem->rect.top;
3251
3252 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3253
3254 if (bUser || ((wineItem->cChildren != 0) &&
3255 !(wineItem->state & TVIS_EXPANDEDONCE)))
3256 {
3257 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3258 {
3259 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3260 return FALSE;
3261 }
3262
3263 if (!wineItem->firstChild)
3264 return FALSE;
3265
3266 wineItem->state |= TVIS_EXPANDED;
3267 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3268 wineItem->state |= TVIS_EXPANDEDONCE;
3269 }
3270 else
3271 {
3272 if (!wineItem->firstChild)
3273 return FALSE;
3274
3275 /* this item has already been expanded */
3276 wineItem->state |= TVIS_EXPANDED;
3277 }
3278
3279 if (bExpandPartial)
3280 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3281
3282 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3283 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3284 TREEVIEW_UpdateScrollBars(infoPtr);
3285
3286 scrollRect.left = 0;
3287 scrollRect.bottom = infoPtr->treeHeight;
3288 scrollRect.right = infoPtr->clientWidth;
3289 if (nextItem)
3290 {
3291 scrollDist = nextItem->rect.top - orgNextTop;
3292 scrollRect.top = orgNextTop;
3293
3294 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3295 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3296 TREEVIEW_Invalidate (infoPtr, wineItem);
3297 } else {
3298 scrollRect.top = wineItem->rect.top;
3299 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3300 }
3301
3302 /* Scroll up so that as many children as possible are visible.
3303 * This fails when expanding causes an HScroll bar to appear, but we
3304 * don't know that yet, so the last item is obscured. */
3305 if (wineItem->firstChild != NULL)
3306 {
3307 int nChildren = wineItem->lastChild->visibleOrder
3308 - wineItem->firstChild->visibleOrder + 1;
3309
3310 int visible_pos = wineItem->visibleOrder
3311 - infoPtr->firstVisible->visibleOrder;
3312
3313 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3314
3315 if (visible_pos > 0 && nChildren > rows_below)
3316 {
3317 int scroll = nChildren - rows_below;
3318
3319 if (scroll > visible_pos)
3320 scroll = visible_pos;
3321
3322 if (scroll > 0)
3323 {
3324 TREEVIEW_ITEM *newFirstVisible
3325 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3326 scroll);
3327
3328
3329 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3330 }
3331 }
3332 }
3333
3334 return TRUE;
3335 }
3336
3337 static BOOL
3338 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3339 {
3340 TRACE("\n");
3341
3342 if (wineItem->state & TVIS_EXPANDED)
3343 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3344 else
3345 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3346 }
3347
3348 static VOID
3349 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3350 {
3351 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3352
3353 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3354 {
3355 if (TREEVIEW_HasChildren(infoPtr, item))
3356 TREEVIEW_ExpandAll(infoPtr, item);
3357 }
3358 }
3359
3360 /* Note:If the specified item is the child of a collapsed parent item,
3361 the parent's list of child items is (recursively) expanded to reveal the
3362 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3363 know if it also applies here.
3364 */
3365
3366 static LRESULT
3367 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3368 {
3369 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3370 return 0;
3371
3372 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3373 TREEVIEW_ItemName(wineItem), flag,
3374 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3375
3376 switch (flag & TVE_TOGGLE)
3377 {
3378 case TVE_COLLAPSE:
3379 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3380 FALSE);
3381
3382 case TVE_EXPAND:
3383 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3384 FALSE);
3385
3386 case TVE_TOGGLE:
3387 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3388
3389 default:
3390 return 0;
3391 }
3392
3393 #if 0
3394 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3395 #endif
3396 }
3397
3398 /* Hit-Testing **********************************************************/
3399
3400 static TREEVIEW_ITEM *
3401 TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
3402 {
3403 TREEVIEW_ITEM *wineItem;
3404 LONG row;
3405
3406 if (!infoPtr->firstVisible)
3407 return NULL;
3408
3409 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3410
3411 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3412 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3413 {
3414 if (row >= wineItem->visibleOrder
3415 && row < wineItem->visibleOrder + wineItem->iIntegral)
3416 break;
3417 }
3418
3419 return wineItem;
3420 }
3421
3422 static LRESULT
3423 TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3424 {
3425 TREEVIEW_ITEM *wineItem;
3426 RECT rect;
3427 UINT status;
3428 LONG x, y;
3429
3430 lpht->hItem = 0;
3431 GetClientRect(infoPtr->hwnd, &rect);
3432 status = 0;
3433 x = lpht->pt.x;
3434 y = lpht->pt.y;
3435
3436 if (x < rect.left)
3437 {
3438 status |= TVHT_TOLEFT;
3439 }
3440 else if (x > rect.right)
3441 {
3442 status |= TVHT_TORIGHT;
3443 }
3444
3445 if (y < rect.top)
3446 {
3447 status |= TVHT_ABOVE;
3448 }
3449 else if (y > rect.bottom)
3450 {
3451 status |= TVHT_BELOW;
3452 }
3453
3454 if (status)
3455 {
3456 lpht->flags = status;
3457 return (LRESULT)(HTREEITEM)NULL;
3458 }
3459
3460 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3461 if (!wineItem)
3462 {
3463 lpht->flags = TVHT_NOWHERE;
3464 return (LRESULT)(HTREEITEM)NULL;
3465 }
3466
3467 if (x >= wineItem->textOffset + wineItem->textWidth)
3468 {
3469 lpht->flags = TVHT_ONITEMRIGHT;
3470 }
3471 else if (x >= wineItem->textOffset)
3472 {
3473 lpht->flags = TVHT_ONITEMLABEL;
3474 }
3475 else if (x >= wineItem->imageOffset)
3476 {
3477 lpht->flags = TVHT_ONITEMICON;
3478 }
3479 else if (x >= wineItem->stateOffset)
3480 {
3481 lpht->flags = TVHT_ONITEMSTATEICON;
3482 }
3483 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3484 {
3485 lpht->flags = TVHT_ONITEMBUTTON;
3486 }
3487 else
3488 {
3489 lpht->flags = TVHT_ONITEMINDENT;
3490 }
3491
3492 lpht->hItem = wineItem;
3493 TRACE("(%ld,%ld):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3494
3495 return (LRESULT)wineItem;
3496 }
3497
3498 /* Item Label Editing ***************************************************/
3499
3500 static LRESULT
3501 TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
3502 {
3503 return (LRESULT)infoPtr->hwndEdit;
3504 }
3505
3506 static LRESULT CALLBACK
3507 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3508 {
3509 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3510 BOOL bCancel = FALSE;
3511 LRESULT rc;
3512
3513 switch (uMsg)
3514 {
3515 case WM_PAINT:
3516 TRACE("WM_PAINT start\n");
3517 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3518 lParam);
3519 TRACE("WM_PAINT done\n");
3520 return rc;
3521
3522 case WM_KILLFOCUS:
3523 if (infoPtr->bIgnoreEditKillFocus)
3524 return TRUE;
3525 break;
3526
3527 case WM_GETDLGCODE:
3528 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3529
3530 case WM_KEYDOWN:
3531 if (wParam == (WPARAM)VK_ESCAPE)
3532 {
3533 bCancel = TRUE;
3534 break;
3535 }
3536 else if (wParam == (WPARAM)VK_RETURN)
3537 {
3538 break;
3539 }
3540
3541 /* fall through */
3542 default:
3543 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3544 }
3545
3546 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3547 /* eg. Using a messagebox */
3548
3549 infoPtr->bIgnoreEditKillFocus = TRUE;
3550 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3551 infoPtr->bIgnoreEditKillFocus = FALSE;
3552
3553 return 0;
3554 }
3555
3556
3557 /* should handle edit control messages here */
3558
3559 static LRESULT
3560 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3561 {
3562 TRACE("%x %ld\n", wParam, lParam);
3563
3564 switch (HIWORD(wParam))
3565 {
3566 case EN_UPDATE:
3567 {
3568 /*
3569 * Adjust the edit window size
3570 */
3571 WCHAR buffer[1024];
3572 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3573 HDC hdc = GetDC(infoPtr->hwndEdit);
3574 SIZE sz;
3575 int len;
3576 HFONT hFont, hOldFont = 0;
3577
3578 infoPtr->bLabelChanged = TRUE;
3579
3580 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3581
3582 /* Select font to get the right dimension of the string */
3583 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3584
3585 if (hFont != 0)
3586 {
3587 hOldFont = SelectObject(hdc, hFont);
3588 }
3589
3590 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3591 {
3592 TEXTMETRICW textMetric;
3593
3594 /* Add Extra spacing for the next character */
3595 GetTextMetricsW(hdc, &textMetric);
3596 sz.cx += (textMetric.tmMaxCharWidth * 2);
3597
3598 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3599 sz.cx = min(sz.cx,
3600 infoPtr->clientWidth - editItem->textOffset + 2);
3601
3602 SetWindowPos(infoPtr->hwndEdit,
3603 HWND_TOP,
3604 0,
3605 0,
3606 sz.cx,
3607 editItem->rect.bottom - editItem->rect.top + 3,
3608 SWP_NOMOVE | SWP_DRAWFRAME);
3609 }
3610
3611 if (hFont != 0)
3612 {
3613 SelectObject(hdc, hOldFont);
3614 }
3615
3616 ReleaseDC(infoPtr->hwnd, hdc);
3617 break;
3618 }
3619
3620 default:
3621 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3622 }
3623
3624 return 0;
3625 }
3626
3627 static HWND
3628 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3629 {
3630 HWND hwnd = infoPtr->hwnd;
3631 HWND hwndEdit;
3632 SIZE sz;
3633 TREEVIEW_ITEM *editItem = hItem;
3634 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3635 HDC hdc;
3636 HFONT hOldFont=0;
3637 TEXTMETRICW textMetric;
3638 static const WCHAR EditW[] = {'E','d','i','t',0};
3639
3640 TRACE("%p %p\n", hwnd, hItem);
3641 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3642 return NULL;
3643
3644 if (infoPtr->hwndEdit)
3645 return infoPtr->hwndEdit;
3646
3647 infoPtr->bLabelChanged = FALSE;
3648
3649 /* Make sure that edit item is selected */
3650 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3651 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3652
3653 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3654
3655 hdc = GetDC(hwnd);
3656 /* Select the font to get appropriate metric dimensions */
3657 if (infoPtr->hFont != 0)
3658 {
3659 hOldFont = SelectObject(hdc, infoPtr->hFont);
3660 }
3661
3662 /* Get string length in pixels */
3663 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3664 &sz);
3665
3666 /* Add Extra spacing for the next character */
3667 GetTextMetricsW(hdc, &textMetric);
3668 sz.cx += (textMetric.tmMaxCharWidth * 2);
3669
3670 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3671 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3672
3673 if (infoPtr->hFont != 0)
3674 {
3675 SelectObject(hdc, hOldFont);
3676 }
3677
3678 ReleaseDC(hwnd, hdc);
3679 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3680 EditW,
3681 0,
3682 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3683 WS_CLIPSIBLINGS | ES_WANTRETURN |
3684 ES_LEFT, editItem->textOffset - 2,
3685 editItem->rect.top - 1, sz.cx + 3,
3686 editItem->rect.bottom -
3687 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3688 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3689
3690 infoPtr->hwndEdit = hwndEdit;
3691
3692 /* Get a 2D border. */
3693 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3694 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3695 SetWindowLongW(hwndEdit, GWL_STYLE,
3696 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3697
3698 SendMessageW(hwndEdit, WM_SETFONT,
3699 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3700
3701 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3702 (DWORD_PTR)
3703 TREEVIEW_Edit_SubclassProc);
3704
3705 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3706 {
3707 DestroyWindow(hwndEdit);
3708 infoPtr->hwndEdit = 0;
3709 return NULL;
3710 }
3711
3712 infoPtr->selectedItem = hItem;
3713 SetWindowTextW(hwndEdit, editItem->pszText);
3714 SetFocus(hwndEdit);
3715 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3716 ShowWindow(hwndEdit, SW_SHOW);
3717
3718 return hwndEdit;
3719 }
3720
3721
3722 static LRESULT
3723 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3724 {
3725 HWND hwnd = infoPtr->hwnd;
3726 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3727 NMTVDISPINFOW tvdi;
3728 BOOL bCommit;
3729 WCHAR tmpText[1024] = { '\0' };
3730 WCHAR *newText = tmpText;
3731 int iLength = 0;
3732
3733 if (!infoPtr->hwndEdit)
3734 return FALSE;
3735
3736 tvdi.hdr.hwndFrom = hwnd;
3737 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3738 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3739 tvdi.item.mask = 0;
3740 tvdi.item.hItem = editedItem;
3741 tvdi.item.state = editedItem->state;
3742 tvdi.item.lParam = editedItem->lParam;
3743
3744 if (!bCancel)
3745 {
3746 if (!infoPtr->bNtfUnicode)
3747 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3748 else
3749 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3750
3751 if (iLength >= 1023)
3752 {
3753 ERR("Insufficient space to retrieve new item label\n");
3754 }
3755
3756 tvdi.item.mask = TVIF_TEXT;
3757 tvdi.item.pszText = tmpText;
3758 tvdi.item.cchTextMax = iLength + 1;
3759 }
3760 else
3761 {
3762 tvdi.item.pszText = NULL;
3763 tvdi.item.cchTextMax = 0;
3764 }
3765
3766 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
3767 (WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
3768
3769 if (!bCancel && bCommit) /* Apply the changes */
3770 {
3771 if (!infoPtr->bNtfUnicode)
3772 {
3773 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3774 newText = Alloc(len * sizeof(WCHAR));
3775 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3776 iLength = len - 1;
3777 }
3778
3779 if (strcmpW(newText, editedItem->pszText) != 0)
3780 {
3781 if (NULL == ReAlloc(editedItem->pszText, iLength + 1))
3782 {
3783 ERR("OutOfMemory, cannot allocate space for label\n");
3784 DestroyWindow(infoPtr->hwndEdit);
3785 infoPtr->hwndEdit = 0;
3786 return FALSE;
3787 }
3788 else
3789 {
3790 editedItem->cchTextMax = iLength + 1;
3791 strcpyW(editedItem->pszText, newText);
3792 }
3793 }
3794 if(newText != tmpText) Free(newText);
3795 }
3796
3797 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3798 DestroyWindow(infoPtr->hwndEdit);
3799 infoPtr->hwndEdit = 0;
3800 return TRUE;
3801 }
3802
3803 static LRESULT
3804 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3805 {
3806 if (wParam != TV_EDIT_TIMER)
3807 {
3808 ERR("got unknown timer\n");
3809 return 1;
3810 }
3811
3812 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3813 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3814
3815 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3816
3817 return 0;
3818 }
3819
3820
3821 /* Mouse Tracking/Drag **************************************************/
3822
3823 /***************************************************************************
3824 * This is quite unusual piece of code, but that's how it's implemented in
3825 * Windows.
3826 */
3827 static LRESULT
3828 TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
3829 {
3830 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3831 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3832 RECT r;
3833 MSG msg;
3834
3835 r.top = pt.y - cyDrag;
3836 r.left = pt.x - cxDrag;
3837 r.bottom = pt.y + cyDrag;
3838 r.right = pt.x + cxDrag;
3839
3840 SetCapture(infoPtr->hwnd);
3841
3842 while (1)
3843 {
3844 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3845 {
3846 if (msg.message == WM_MOUSEMOVE)
3847 {
3848 pt.x = (short)LOWORD(msg.lParam);
3849 pt.y = (short)HIWORD(msg.lParam);
3850 if (PtInRect(&r, pt))
3851 continue;
3852 else
3853 {
3854 ReleaseCapture();
3855 return 1;
3856 }
3857 }
3858 else if (msg.message >= WM_LBUTTONDOWN &&
3859 msg.message <= WM_RBUTTONDBLCLK)
3860 {
3861 if (msg.message == WM_RBUTTONUP)
3862 TREEVIEW_RButtonUp(infoPtr, &pt);
3863 break;
3864 }
3865
3866 DispatchMessageW(&msg);
3867 }
3868
3869 if (GetCapture() != infoPtr->hwnd)
3870 return 0;
3871 }
3872
3873 ReleaseCapture();
3874 return 0;
3875 }
3876
3877
3878 static LRESULT
3879 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3880 {
3881 TREEVIEW_ITEM *wineItem;
3882 TVHITTESTINFO hit;
3883
3884 TRACE("\n");
3885 SetFocus(infoPtr->hwnd);
3886
3887 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3888 {
3889 /* If there is pending 'edit label' event - kill it now */
3890 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3891 }
3892
3893 hit.pt.x = (short)LOWORD(lParam);
3894 hit.pt.y = (short)HIWORD(lParam);
3895
3896 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3897 if (!wineItem)
3898 return 0;
3899 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3900
3901 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3902 { /* FIXME! */
3903 switch (hit.flags)
3904 {
3905 case TVHT_ONITEMRIGHT:
3906 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3907 break;
3908
3909 case TVHT_ONITEMINDENT:
3910 if (!(infoPtr->dwStyle & TVS_HASLINES))
3911 {
3912 break;
3913 }
3914 else
3915 {
3916 int level = hit.pt.x / infoPtr->uIndent;
3917 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3918
3919 while (wineItem->iLevel > level)
3920 {
3921 wineItem = wineItem->parent;
3922 }
3923
3924 /* fall through */
3925 }
3926
3927 case TVHT_ONITEMLABEL:
3928 case TVHT_ONITEMICON:
3929 case TVHT_ONITEMBUTTON:
3930 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3931 break;
3932
3933 case TVHT_ONITEMSTATEICON:
3934 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3935 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3936 else
3937 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3938 break;
3939 }
3940 }
3941 return TRUE;
3942 }
3943
3944
3945 static LRESULT
3946 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3947 {
3948 HWND hwnd = infoPtr->hwnd;
3949 TVHITTESTINFO ht;
3950 BOOL bTrack, bDoLabelEdit;
3951 HTREEITEM tempItem;
3952
3953 /* If Edit control is active - kill it and return.
3954 * The best way to do it is to set focus to itself.
3955 * Edit control subclassed procedure will automatically call
3956 * EndEditLabelNow.
3957 */
3958 if (infoPtr->hwndEdit)
3959 {
3960 SetFocus(hwnd);
3961 return 0;
3962 }
3963
3964 ht.pt.x = (short)LOWORD(lParam);
3965 ht.pt.y = (short)HIWORD(lParam);
3966
3967 TREEVIEW_HitTest(infoPtr, &ht);
3968 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3969
3970 /* update focusedItem and redraw both items */
3971 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3972 {
3973 infoPtr->focusedItem = ht.hItem;
3974 InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
3975
3976 if(infoPtr->selectedItem)
3977 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3978 }
3979
3980 bTrack = (ht.flags & TVHT_ONITEM)
3981 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3982
3983 /*
3984 * If the style allows editing and the node is already selected
3985 * and the click occurred on the item label...
3986 */
3987 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
3988 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
3989
3990 /* Send NM_CLICK right away */
3991 if (!bTrack)
3992 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
3993 goto setfocus;
3994
3995 if (ht.flags & TVHT_ONITEMBUTTON)
3996 {
3997 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
3998 goto setfocus;
3999 }
4000 else if (bTrack)
4001 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4002 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4003 {
4004 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4005 infoPtr->dropItem = ht.hItem;
4006
4007 /* clean up focusedItem as we dragged and won't select this item */
4008 if(infoPtr->focusedItem)
4009 {
4010 /* refresh the item that was focused */
4011 tempItem = infoPtr->focusedItem;
4012 infoPtr->focusedItem = 0;
4013 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4014
4015 /* refresh the selected item to return the filled background */
4016 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4017 }
4018
4019 return 0;
4020 }
4021 }
4022
4023 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4024 goto setfocus;
4025
4026 if (bDoLabelEdit)
4027 {
4028 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4029 KillTimer(hwnd, TV_EDIT_TIMER);
4030
4031 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4032 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4033 }
4034 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4035 {
4036 /*
4037 * if we are TVS_SINGLEEXPAND then we want this single click to
4038 * do a bunch of things.
4039 */
4040 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4041 (infoPtr->hwndEdit == 0))
4042 {
4043 TREEVIEW_ITEM *SelItem;
4044
4045 /*
4046 * Send the notification
4047 */
4048 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4049
4050 /*
4051 * Close the previous selection all the way to the root
4052 * as long as the new selection is not a child
4053 */
4054 if((infoPtr->selectedItem)
4055 && (infoPtr->selectedItem != ht.hItem))
4056 {
4057 BOOL closeit = TRUE;
4058 SelItem = ht.hItem;
4059
4060 /* determine if the hitItem is a child of the currently selected item */
4061 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4062 {
4063 closeit = (SelItem != infoPtr->selectedItem);
4064 SelItem = SelItem->parent;
4065 }
4066
4067 if(closeit)
4068 {
4069 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4070 SelItem = infoPtr->selectedItem;
4071
4072 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4073 {
4074 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4075 SelItem = SelItem->parent;
4076 }
4077 }
4078 }
4079
4080 /*
4081 * Expand the current item
4082 */
4083 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4084 }
4085
4086 /* Select the current item */
4087 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4088 }
4089 else if (ht.flags & TVHT_ONITEMSTATEICON)
4090 {
4091 /* TVS_CHECKBOXES requires us to toggle the current state */
4092 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4093 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4094 }
4095
4096 setfocus:
4097 SetFocus(hwnd);
4098 return 0;
4099 }
4100
4101
4102 static LRESULT
4103 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4104 {
4105 TVHITTESTINFO ht;
4106
4107 if (infoPtr->hwndEdit)
4108 {
4109 SetFocus(infoPtr->hwnd);
4110 return 0;
4111 }
4112
4113 ht.pt.x = (short)LOWORD(lParam);
4114 ht.pt.y = (short)HIWORD(lParam);
4115
4116 TREEVIEW_HitTest(infoPtr, &ht);
4117
4118 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4119 {
4120 if (ht.hItem)
4121 {
4122 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4123 infoPtr->dropItem = ht.hItem;
4124 }
4125 }
4126 else
4127 {
4128 SetFocus(infoPtr->hwnd);
4129 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4130 }
4131
4132 return 0;
4133 }
4134
4135 static LRESULT
4136 TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
4137 {
4138 return 0;
4139 }
4140
4141
4142 static LRESULT
4143 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4144 {
4145 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4146 INT cx, cy;
4147 HDC hdc, htopdc;
4148 HWND hwtop;
4149 HBITMAP hbmp, hOldbmp;
4150 SIZE size;
4151 RECT rc;
4152 HFONT hOldFont;
4153
4154 TRACE("\n");
4155
4156 if (!(infoPtr->himlNormal))
4157 return 0;
4158
4159 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4160 return 0;
4161
4162 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4163
4164 hwtop = GetDesktopWindow();
4165 htopdc = GetDC(hwtop);
4166 hdc = CreateCompatibleDC(htopdc);
4167
4168 hOldFont = SelectObject(hdc, infoPtr->hFont);
4169 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4170 &size);
4171 TRACE("%ld %ld %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4172 strlenW(dragItem->pszText));
4173 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4174 hOldbmp = SelectObject(hdc, hbmp);
4175
4176 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4177 size.cx += cx;
4178 if (cy > size.cy)
4179 size.cy = cy;
4180
4181 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4182 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4183 ILD_NORMAL);
4184
4185 /*
4186 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4187 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4188 */
4189
4190 /* draw item text */
4191
4192 SetRect(&rc, cx, 0, size.cx, size.cy);
4193 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4194 DT_LEFT);
4195 SelectObject(hdc, hOldFont);
4196 SelectObject(hdc, hOldbmp);
4197
4198 ImageList_Add(infoPtr->dragList, hbmp, 0);
4199
4200 DeleteDC(hdc);
4201 DeleteObject(hbmp);
4202 ReleaseDC(hwtop, htopdc);
4203
4204 return (LRESULT)infoPtr->dragList;
4205 }
4206
4207 /* Selection ************************************************************/
4208
4209 static LRESULT
4210 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4211 INT cause)
4212 {
4213 TREEVIEW_ITEM *prevSelect;
4214 RECT rcFocused;
4215
4216 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4217
4218 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4219 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4220 newSelect ? newSelect->state : 0);
4221
4222 /* reset and redraw focusedItem if focusedItem was set so we don't */
4223 /* have to worry about the previously focused item when we set a new one */
4224 if(infoPtr->focusedItem)
4225 {
4226 rcFocused = (infoPtr->focusedItem)->rect;
4227 infoPtr->focusedItem = 0;
4228 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4229 }
4230
4231 switch (action)
4232 {
4233 case TVGN_CARET:
4234 prevSelect = infoPtr->selectedItem;
4235
4236 if (prevSelect == newSelect) {
4237 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4238 break;
4239 }
4240
4241 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4242 TVN_SELCHANGINGW,
4243 cause,
4244 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4245 prevSelect,
4246 newSelect))
4247 return FALSE;
4248
4249 if (prevSelect)
4250 prevSelect->state &= ~TVIS_SELECTED;
4251 if (newSelect)
4252 newSelect->state |= TVIS_SELECTED;
4253
4254 infoPtr->selectedItem = newSelect;
4255
4256 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4257
4258 if (prevSelect)
4259 TREEVIEW_Invalidate(infoPtr, prevSelect);
4260 if (newSelect)
4261 TREEVIEW_Invalidate(infoPtr, newSelect);
4262
4263 TREEVIEW_SendTreeviewNotify(infoPtr,
4264 TVN_SELCHANGEDW,
4265 cause,
4266 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4267 prevSelect,
4268 newSelect);
4269 break;
4270
4271 case TVGN_DROPHILITE:
4272 prevSelect = infoPtr->dropItem;
4273
4274 if (prevSelect)
4275 prevSelect->state &= ~TVIS_DROPHILITED;
4276
4277 infoPtr->dropItem = newSelect;
4278
4279 if (newSelect)
4280 newSelect->state |= TVIS_DROPHILITED;
4281
4282 TREEVIEW_Invalidate(infoPtr, prevSelect);
4283 TREEVIEW_Invalidate(infoPtr, newSelect);
4284 break;
4285
4286 case TVGN_FIRSTVISIBLE:
4287 if (newSelect != NULL)
4288 {
4289 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4290 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4291 TREEVIEW_Invalidate(infoPtr, NULL);
4292 }
4293 break;
4294 }
4295
4296 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4297 return TRUE;
4298 }
4299
4300 /* FIXME: handle NM_KILLFOCUS etc */
4301 static LRESULT
4302 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4303 {
4304 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4305 return FALSE;
4306
4307 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4308
4309 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4310 return FALSE;
4311
4312 return TRUE;
4313 }
4314
4315 /*************************************************************************
4316 * TREEVIEW_ProcessLetterKeys
4317 *
4318 * Processes keyboard messages generated by pressing the letter keys
4319 * on the keyboard.
4320 * What this does is perform a case insensitive search from the
4321 * current position with the following quirks:
4322 * - If two chars or more are pressed in quick succession we search
4323 * for the corresponding string (e.g. 'abc').
4324 * - If there is a delay we wipe away the current search string and
4325 * restart with just that char.
4326 * - If the user keeps pressing the same character, whether slowly or
4327 * fast, so that the search string is entirely composed of this
4328 * character ('aaaaa' for instance), then we search for first item
4329 * that starting with that character.
4330 * - If the user types the above character in quick succession, then
4331 * we must also search for the corresponding string ('aaaaa'), and
4332 * go to that string if there is a match.
4333 *
4334 * RETURNS
4335 *
4336 * Zero.
4337 *
4338 * BUGS
4339 *
4340 * - The current implementation has a list of characters it will
4341 * accept and it ignores averything else. In particular it will
4342 * ignore accentuated characters which seems to match what
4343 * Windows does. But I'm not sure it makes sense to follow
4344 * Windows there.
4345 * - We don't sound a beep when the search fails.
4346 * - The search should start from the focused item, not from the selected
4347 * item. One reason for this is to allow for multiple selections in trees.
4348 * But currently infoPtr->focusedItem does not seem very usable.
4349 *
4350 * SEE ALSO
4351 *
4352 * TREEVIEW_ProcessLetterKeys
4353 */
4354 static INT TREEVIEW_ProcessLetterKeys(
4355 HWND hwnd, /* handle to the window */
4356 WPARAM charCode, /* the character code, the actual character */
4357 LPARAM keyData /* key data */
4358 )
4359 {
4360 TREEVIEW_INFO *infoPtr;
4361 HTREEITEM nItem;
4362 HTREEITEM endidx,idx;
4363 TVITEMEXW item;
4364 WCHAR buffer[MAX_PATH];
4365 DWORD timestamp,elapsed;
4366
4367 /* simple parameter checking */
4368 if (!hwnd || !charCode || !keyData)
4369 return 0;
4370
4371 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4372 if (!infoPtr)
4373 return 0;
4374
4375 /* only allow the valid WM_CHARs through */
4376 if (!isalnum(charCode) &&
4377 charCode != '.' && charCode != '`' && charCode != '!' &&
4378 charCode != '@' && charCode != '#' && charCode != '$' &&
4379 charCode != '%' && charCode != '^' && charCode != '&' &&
4380 charCode != '*' && charCode != '(' && charCode != ')' &&
4381 charCode != '-' && charCode != '_' && charCode != '+' &&
4382 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4383 charCode != '}' && charCode != '[' && charCode != '{' &&
4384 charCode != '/' && charCode != '?' && charCode != '>' &&
4385 charCode != '<' && charCode != ',' && charCode != '~')
4386 return 0;
4387
4388 /* compute how much time elapsed since last keypress */
4389 timestamp = GetTickCount();
4390 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4391 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4392 } else {
4393 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4394 }
4395
4396 /* update the search parameters */
4397 infoPtr->lastKeyPressTimestamp=timestamp;
4398 if (elapsed < KEY_DELAY) {
4399 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4400 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4401 }
4402 if (infoPtr->charCode != charCode) {
4403 infoPtr->charCode=charCode=0;
4404 }
4405 } else {
4406 infoPtr->charCode=charCode;
4407 infoPtr->szSearchParam[0]=charCode;
4408 infoPtr->nSearchParamLength=1;
4409 /* Redundant with the 1 char string */
4410 charCode=0;
4411 }
4412
4413 /* and search from the current position */
4414 nItem=NULL;
4415 if (infoPtr->selectedItem != NULL) {
4416 endidx=infoPtr->selectedItem;
4417 /* if looking for single character match,
4418 * then we must always move forward
4419 */
4420 if (infoPtr->nSearchParamLength == 1)
4421 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4422 else
4423 idx=endidx;
4424 } else {
4425 endidx=NULL;
4426 idx=infoPtr->root->firstChild;
4427 }
4428 do {
4429 /* At the end point, sort out wrapping */
4430 if (idx == NULL) {
4431
4432 /* If endidx is null, stop at the last item (ie top to bottom) */
4433 if (endidx == NULL)
4434 break;
4435
4436 /* Otherwise, start again at the very beginning */
4437 idx=infoPtr->root->firstChild;
4438
4439 /* But if we are stopping on the first child, end now! */
4440 if (idx == endidx) break;
4441 }
4442
4443 /* get item */
4444 ZeroMemory(&item, sizeof(item));
4445 item.mask = TVIF_TEXT;
4446 item.hItem = idx;
4447 item.pszText = buffer;
4448 item.cchTextMax = sizeof(buffer);
4449 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4450
4451 /* check for a match */
4452 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4453 nItem=idx;
4454 break;
4455 } else if ( (charCode != 0) && (nItem == NULL) &&
4456 (nItem != infoPtr->selectedItem) &&
4457 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4458 /* This would work but we must keep looking for a longer match */
4459 nItem=idx;
4460 }
4461 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4462 } while (idx != endidx);
4463
4464 if (nItem != NULL) {
4465 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4466 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4467 }
4468 }
4469
4470 return 0;
4471 }
4472
4473 /* Scrolling ************************************************************/
4474
4475 static LRESULT
4476 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4477 {
4478 int viscount;
4479 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4480 HTREEITEM newFirstVisible = NULL;
4481 int visible_pos = -1;
4482
4483 if (!TREEVIEW_ValidItem(infoPtr, item))
4484 return FALSE;
4485
4486 if (!ISVISIBLE(item))
4487 {
4488 /* Expand parents as necessary. */
4489 HTREEITEM parent;
4490
4491 /* see if we are trying to ensure that root is vislble */
4492 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4493 parent = item->parent;
4494 else
4495 parent = item; /* this item is the topmost item */
4496
4497 while (parent != infoPtr->root)
4498 {
4499 if (!(parent->state & TVIS_EXPANDED))
4500 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4501
4502 parent = parent->parent;
4503 }
4504 }
4505
4506 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4507
4508 TRACE("%p (%s) %ld - %ld viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4509 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4510
4511 if (hasFirstVisible)
4512 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4513
4514 if (visible_pos < 0)
4515 {
4516 /* item is before the start of the list: put it at the top. */
4517 newFirstVisible = item;
4518 }
4519 else if (visible_pos >= viscount
4520 /* Sometimes, before we are displayed, GVC is 0, causing us to
4521 * spuriously scroll up. */
4522 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4523 {
4524 /* item is past the end of the list. */
4525 int scroll = visible_pos - viscount;
4526
4527 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4528 scroll + 1);
4529 }
4530
4531 if (bHScroll)
4532 {
4533 /* Scroll window so item's text is visible as much as possible */
4534 /* Calculation of amount of extra space is taken from EditLabel code */
4535 INT pos, x;
4536 TEXTMETRICW textMetric;
4537 HDC hdc = GetWindowDC(infoPtr->hwnd);
4538
4539 x = item->textWidth;
4540
4541 GetTextMetricsW(hdc, &textMetric);
4542 ReleaseDC(infoPtr->hwnd, hdc);
4543
4544 x += (textMetric.tmMaxCharWidth * 2);
4545 x = max(x, textMetric.tmMaxCharWidth * 3);
4546
4547 if (item->textOffset < 0)
4548 pos = item->textOffset;
4549 else if (item->textOffset + x > infoPtr->clientWidth)
4550 {
4551 if (x > infoPtr->clientWidth)
4552 pos = item->textOffset;
4553 else
4554 pos = item->textOffset + x - infoPtr->clientWidth;
4555 }
4556 else
4557 pos = 0;
4558
4559 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4560 }
4561
4562 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4563 {
4564 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4565
4566 return TRUE;
4567 }
4568
4569 return FALSE;
4570 }
4571
4572 static VOID
4573 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4574 TREEVIEW_ITEM *newFirstVisible,
4575 BOOL bUpdateScrollPos)
4576 {
4577 int gap_size;
4578
4579 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4580
4581 if (newFirstVisible != NULL)
4582 {
4583 /* Prevent an empty gap from appearing at the bottom... */
4584 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4585 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4586
4587 if (gap_size > 0)
4588 {
4589 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4590 -gap_size);
4591
4592 /* ... unless we just don't have enough items. */
4593 if (newFirstVisible == NULL)
4594 newFirstVisible = infoPtr->root->firstChild;
4595 }
4596 }
4597
4598 if (infoPtr->firstVisible != newFirstVisible)
4599 {
4600 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4601 {
4602 infoPtr->firstVisible = newFirstVisible;
4603 TREEVIEW_Invalidate(infoPtr, NULL);
4604 }
4605 else
4606 {
4607 TREEVIEW_ITEM *item;
4608 int scroll = infoPtr->uItemHeight *
4609 (infoPtr->firstVisible->visibleOrder
4610 - newFirstVisible->visibleOrder);
4611
4612 infoPtr->firstVisible = newFirstVisible;
4613
4614 for (item = infoPtr->root->firstChild; item != NULL;
4615 item = TREEVIEW_GetNextListItem(infoPtr, item))
4616 {
4617 item->rect.top += scroll;
4618 item->rect.bottom += scroll;
4619 }
4620
4621 if (bUpdateScrollPos)
4622 SetScrollPos(infoPtr->hwnd, SB_VERT,
4623 newFirstVisible->visibleOrder, TRUE);
4624
4625 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4626 }
4627 }
4628 }
4629
4630 /************************************************************************
4631 * VScroll is always in units of visible items. i.e. we always have a
4632 * visible item aligned to the top of the control. (Unless we have no
4633 * items at all.)
4634 */
4635 static LRESULT
4636 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4637 {
4638 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4639 TREEVIEW_ITEM *newFirstVisible = NULL;
4640
4641 int nScrollCode = LOWORD(wParam);
4642
4643 TRACE("wp %x\n", wParam);
4644
4645 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4646 return 0;
4647
4648 if (infoPtr->hwndEdit)
4649 SetFocus(infoPtr->hwnd);
4650
4651 if (!oldFirstVisible)
4652 {
4653 assert(infoPtr->root->firstChild == NULL);
4654 return 0;
4655 }
4656
4657 switch (nScrollCode)
4658 {
4659 case SB_TOP:
4660 newFirstVisible = infoPtr->root->firstChild;
4661 break;
4662
4663 case SB_BOTTOM:
4664 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4665 break;
4666
4667 case SB_LINEUP:
4668 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4669 break;
4670
4671 case SB_LINEDOWN:
4672 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4673 break;
4674
4675 case SB_PAGEUP:
4676 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4677 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4678 break;
4679
4680 case SB_PAGEDOWN:
4681 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4682 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4683 break;
4684
4685 case SB_THUMBTRACK:
4686 case SB_THUMBPOSITION:
4687 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4688 infoPtr->root->firstChild,
4689 (LONG)(SHORT)HIWORD(wParam));
4690 break;
4691
4692 case SB_ENDSCROLL:
4693 return 0;
4694 }
4695
4696 if (newFirstVisible != NULL)
4697 {
4698 if (newFirstVisible != oldFirstVisible)
4699 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4700 nScrollCode != SB_THUMBTRACK);
4701 else if (nScrollCode == SB_THUMBPOSITION)
4702 SetScrollPos(infoPtr->hwnd, SB_VERT,
4703 newFirstVisible->visibleOrder, TRUE);
4704 }
4705
4706 return 0;
4707 }
4708
4709 static LRESULT
4710 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4711 {
4712 int maxWidth;
4713 int scrollX = infoPtr->scrollX;
4714 int nScrollCode = LOWORD(wParam);
4715
4716 TRACE("wp %x\n", wParam);
4717
4718 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4719 return FALSE;
4720
4721 if (infoPtr->hwndEdit)
4722 SetFocus(infoPtr->hwnd);
4723
4724 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4725 /* shall never occur */
4726 if (maxWidth <= 0)
4727 {
4728 scrollX = 0;
4729 goto scroll;
4730 }
4731
4732 switch (nScrollCode)
4733 {
4734 case SB_LINELEFT:
4735 scrollX -= infoPtr->uItemHeight;
4736 break;
4737 case SB_LINERIGHT:
4738 scrollX += infoPtr->uItemHeight;
4739 break;
4740 case SB_PAGELEFT:
4741 scrollX -= infoPtr->clientWidth;
4742 break;
4743 case SB_PAGERIGHT:
4744 scrollX += infoPtr->clientWidth;
4745 break;
4746
4747 case SB_THUMBTRACK:
4748 case SB_THUMBPOSITION:
4749 scrollX = (int)(SHORT)HIWORD(wParam);
4750 break;
4751
4752 case SB_ENDSCROLL:
4753 return 0;
4754 }
4755
4756 if (scrollX > maxWidth)
4757 scrollX = maxWidth;
4758 else if (scrollX < 0)
4759 scrollX = 0;
4760
4761 scroll:
4762 if (scrollX != infoPtr->scrollX)
4763 {
4764 TREEVIEW_ITEM *item;
4765 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4766
4767 for (item = infoPtr->root->firstChild; item != NULL;
4768 item = TREEVIEW_GetNextListItem(infoPtr, item))
4769 {
4770 item->linesOffset += scroll_pixels;
4771 item->stateOffset += scroll_pixels;
4772 item->imageOffset += scroll_pixels;
4773 item->textOffset += scroll_pixels;
4774 }
4775
4776 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4777 infoPtr->scrollX = scrollX;
4778 UpdateWindow(infoPtr->hwnd);
4779 }
4780
4781 if (nScrollCode != SB_THUMBTRACK)
4782 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4783
4784 return 0;
4785 }
4786
4787 static LRESULT
4788 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4789 {
4790 short gcWheelDelta;
4791 UINT pulScrollLines = 3;
4792
4793 if (infoPtr->firstVisible == NULL)
4794 return TRUE;
4795
4796 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4797
4798 gcWheelDelta = -(short)HIWORD(wParam);
4799 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4800
4801 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4802 {
4803 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4804 int maxDy = infoPtr->maxVisibleOrder;
4805
4806 if (newDy > maxDy)
4807 newDy = maxDy;
4808
4809 if (newDy < 0)
4810 newDy = 0;
4811
4812 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4813 }
4814 return TRUE;
4815 }
4816
4817 /* Create/Destroy *******************************************************/
4818
4819 static LRESULT
4820 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4821 {
4822 static const WCHAR szDisplayW[] = { 'D','I','S','P','L','A','Y','\0' };
4823 RECT rcClient;
4824 TREEVIEW_INFO *infoPtr;
4825 LOGFONTW lf;
4826
4827 TRACE("wnd %p, style %lx\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4828
4829 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4830
4831 if (infoPtr == NULL)
4832 {
4833 ERR("could not allocate info memory!\n");
4834 return 0;
4835 }
4836
4837 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4838
4839 infoPtr->hwnd = hwnd;
4840 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4841 infoPtr->Timer = 0;
4842 infoPtr->uNumItems = 0;
4843 infoPtr->cdmode = 0;
4844 infoPtr->uScrollTime = 300; /* milliseconds */
4845 infoPtr->bRedraw = TRUE;
4846
4847 GetClientRect(hwnd, &rcClient);
4848
4849 /* No scroll bars yet. */
4850 infoPtr->clientWidth = rcClient.right;
4851 infoPtr->clientHeight = rcClient.bottom;
4852 infoPtr->uInternalStatus = 0;
4853
4854 infoPtr->treeWidth = 0;
4855 infoPtr->treeHeight = 0;
4856
4857 infoPtr->uIndent = MINIMUM_INDENT;
4858 infoPtr->selectedItem = 0;
4859 infoPtr->focusedItem = 0;
4860 infoPtr->hotItem = 0;
4861 infoPtr->firstVisible = 0;
4862 infoPtr->maxVisibleOrder = 0;
4863 infoPtr->dropItem = 0;
4864 infoPtr->insertMarkItem = 0;
4865 infoPtr->insertBeforeorAfter = 0;
4866 /* dragList */
4867
4868 infoPtr->scrollX = 0;
4869
4870 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4871 infoPtr->clrText = -1; /* use system color */
4872 infoPtr->clrLine = RGB(128, 128, 128);
4873 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4874
4875 /* hwndToolTip */
4876
4877 infoPtr->hwndEdit = 0;
4878 infoPtr->wpEditOrig = NULL;
4879 infoPtr->bIgnoreEditKillFocus = FALSE;
4880 infoPtr->bLabelChanged = FALSE;
4881
4882 infoPtr->himlNormal = NULL;
4883 infoPtr->himlState = NULL;
4884 infoPtr->normalImageWidth = 0;
4885 infoPtr->normalImageHeight = 0;
4886 infoPtr->stateImageWidth = 0;
4887 infoPtr->stateImageHeight = 0;
4888
4889 infoPtr->items = DPA_Create(16);
4890
4891 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4892 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4893 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4894 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4895 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4896
4897 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4898
4899 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4900 infoPtr->root->state = TVIS_EXPANDED;
4901 infoPtr->root->iLevel = -1;
4902 infoPtr->root->visibleOrder = -1;
4903
4904 infoPtr->hwndNotify = lpcs->hwndParent;
4905 #if 0
4906 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4907 #endif
4908
4909 infoPtr->hwndToolTip = 0;
4910
4911 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4912
4913 /* Determine what type of notify should be issued */
4914 /* sets infoPtr->bNtfUnicode */
4915 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4916
4917 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4918 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
4919
4920 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4921 {
4922 RECT rc;
4923 HBITMAP hbm, hbmOld;
4924 HDC hdc,hdcScreen;
4925 int nIndex;
4926
4927 infoPtr->himlState =
4928 ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4929
4930 hdcScreen = CreateDCW(szDisplayW, NULL, NULL, NULL);
4931
4932 /* Create a coloured bitmap compatible with the screen depth
4933 because checkboxes are not black&white */
4934 hdc = CreateCompatibleDC(hdcScreen);
4935 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4936 hbmOld = SelectObject(hdc, hbm);
4937
4938 rc.left = 0; rc.top = 0;
4939 rc.right = 48; rc.bottom = 16;
4940 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4941
4942 rc.left = 18; rc.top = 2;
4943 rc.right = 30; rc.bottom = 14;
4944 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4945 DFCS_BUTTONCHECK|DFCS_FLAT);
4946
4947 rc.left = 34; rc.right = 46;
4948 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4949 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4950
4951 SelectObject(hdc, hbmOld);
4952 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4953 GetSysColor(COLOR_WINDOW));
4954 TRACE("checkbox index %d\n", nIndex);
4955
4956 DeleteObject(hbm);
4957 DeleteDC(hdc);
4958 DeleteDC(hdcScreen);
4959
4960 infoPtr->stateImageWidth = 16;
4961 infoPtr->stateImageHeight = 16;
4962 }
4963
4964 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4965 ShowScrollBar(hwnd, SB_VERT, FALSE);
4966 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4967
4968 OpenThemeData (hwnd, themeClass);
4969
4970 return 0;
4971 }
4972
4973
4974 static LRESULT
4975 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4976 {
4977 TRACE("\n");
4978
4979 TREEVIEW_RemoveTree(infoPtr);
4980
4981 /* tool tip is automatically destroyed: we are its owner */
4982
4983 /* Restore original wndproc */
4984 if (infoPtr->hwndEdit)
4985 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
4986 (DWORD_PTR)infoPtr->wpEditOrig);
4987
4988 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
4989
4990 /* Deassociate treeview from the window before doing anything drastic. */
4991 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
4992
4993
4994 DeleteObject(infoPtr->hDefaultFont);
4995 DeleteObject(infoPtr->hBoldFont);
4996 DeleteObject(infoPtr->hUnderlineFont);
4997 Free(infoPtr);
4998
4999 return 0;
5000 }
5001
5002 /* Miscellaneous Messages ***********************************************/
5003
5004 static LRESULT
5005 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5006 {
5007 static const struct
5008 {
5009 unsigned char code;
5010 }
5011 scroll[] =
5012 {
5013 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5014 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5015 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5016 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5017 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5018 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5019 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5020 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5021 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5022 #undef SCROLL_ENTRY
5023 };
5024
5025 if (key >= VK_PRIOR && key <= VK_DOWN)
5026 {
5027 unsigned char code = scroll[key - VK_PRIOR].code;
5028
5029 (((code & (1 << 7)) == (SB_HORZ << 7))
5030 ? TREEVIEW_HScroll
5031 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5032 }
5033
5034 return 0;
5035 }
5036
5037 /************************************************************************
5038 * TREEVIEW_KeyDown
5039 *
5040 * VK_UP Move selection to the previous non-hidden item.
5041 * VK_DOWN Move selection to the next non-hidden item.
5042 * VK_HOME Move selection to the first item.
5043 * VK_END Move selection to the last item.
5044 * VK_LEFT If expanded then collapse, otherwise move to parent.
5045 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5046 * VK_ADD Expand.
5047 * VK_SUBTRACT Collapse.
5048 * VK_MULTIPLY Expand all.
5049 * VK_PRIOR Move up GetVisibleCount items.
5050 * VK_NEXT Move down GetVisibleCount items.
5051 * VK_BACK Move to parent.
5052 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5053 */
5054 static LRESULT
5055 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5056 {
5057 /* If it is non-NULL and different, it will be selected and visible. */
5058 TREEVIEW_ITEM *newSelection = NULL;
5059
5060 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5061
5062 TRACE("%x\n", wParam);
5063
5064 if (prevItem == NULL)
5065 return FALSE;
5066
5067 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5068 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5069
5070 switch (wParam)
5071 {
5072 case VK_UP:
5073 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5074 if (!newSelection)
5075 newSelection = infoPtr->root->firstChild;
5076 break;
5077
5078 case VK_DOWN:
5079 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5080 break;
5081
5082 case VK_HOME:
5083 newSelection = infoPtr->root->firstChild;
5084 break;
5085
5086 case VK_END:
5087 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5088 break;
5089
5090 case VK_LEFT:
5091 if (prevItem->state & TVIS_EXPANDED)
5092 {
5093 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5094 }
5095 else if (prevItem->parent != infoPtr->root)
5096 {
5097 newSelection = prevItem->parent;
5098 }
5099 break;
5100
5101 case VK_RIGHT:
5102 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5103 {
5104 if (!(prevItem->state & TVIS_EXPANDED))
5105 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5106 else
5107 {
5108 newSelection = prevItem->firstChild;
5109 }
5110 }
5111
5112 break;
5113
5114 case VK_MULTIPLY:
5115 TREEVIEW_ExpandAll(infoPtr, prevItem);
5116 break;
5117
5118 case VK_ADD:
5119 if (!(prevItem->state & TVIS_EXPANDED))
5120 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5121 break;
5122
5123 case VK_SUBTRACT:
5124 if (prevItem->state & TVIS_EXPANDED)
5125 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5126 break;
5127
5128 case VK_PRIOR:
5129 newSelection
5130 = TREEVIEW_GetListItem(infoPtr, prevItem,
5131 -TREEVIEW_GetVisibleCount(infoPtr));
5132 break;
5133
5134 case VK_NEXT:
5135 newSelection
5136 = TREEVIEW_GetListItem(infoPtr, prevItem,
5137 TREEVIEW_GetVisibleCount(infoPtr));
5138 break;
5139
5140 case VK_BACK:
5141 newSelection = prevItem->parent;
5142 if (newSelection == infoPtr->root)
5143 newSelection = NULL;
5144 break;
5145
5146 case VK_SPACE:
5147 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5148 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5149 break;
5150 }
5151
5152 if (newSelection && newSelection != prevItem)
5153 {
5154 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5155 TVC_BYKEYBOARD))
5156 {
5157 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5158 }
5159 }
5160
5161 return FALSE;
5162 }
5163
5164 static LRESULT
5165 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5166 {
5167 if (infoPtr->hotItem)
5168 {
5169 /* remove hot effect from item */
5170 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5171 infoPtr->hotItem = NULL;
5172 }
5173 return 0;
5174 }
5175
5176 static LRESULT
5177 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5178 {
5179 POINT pt;
5180 TRACKMOUSEEVENT trackinfo;
5181 TREEVIEW_ITEM * item;
5182
5183 /* fill in the TRACKMOUSEEVENT struct */
5184 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5185 trackinfo.dwFlags = TME_QUERY;
5186 trackinfo.hwndTrack = infoPtr->hwnd;
5187 trackinfo.dwHoverTime = HOVER_DEFAULT;
5188
5189 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5190 _TrackMouseEvent(&trackinfo);
5191
5192 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5193 if(!(trackinfo.dwFlags & TME_LEAVE))
5194 {
5195 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5196
5197 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5198 /* and can properly deactivate the hot item */
5199 _TrackMouseEvent(&trackinfo);
5200 }
5201
5202 pt.x = (INT)LOWORD(lParam);
5203 pt.y = (INT)HIWORD(lParam);
5204
5205 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5206
5207 if (item != infoPtr->hotItem)
5208 {
5209 /* redraw old hot item */
5210 if (infoPtr->hotItem)
5211 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5212 infoPtr->hotItem = item;
5213 /* redraw new hot item */
5214 if (infoPtr->hotItem)
5215 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5216 }
5217
5218 return 0;
5219 }
5220
5221 /* Draw themed border */
5222 static BOOL nc_paint (TREEVIEW_INFO *infoPtr, HRGN region)
5223 {
5224 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5225 HDC dc;
5226 RECT r;
5227 HRGN cliprgn;
5228 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5229 cyEdge = GetSystemMetrics (SM_CYEDGE);
5230
5231 if (!theme) return FALSE;
5232
5233 GetWindowRect(infoPtr->hwnd, &r);
5234
5235 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5236 r.right - cxEdge, r.bottom - cyEdge);
5237 if (region != (HRGN)1)
5238 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5239 OffsetRect(&r, -r.left, -r.top);
5240
5241 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5242 OffsetRect(&r, -r.left, -r.top);
5243
5244 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5245 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5246 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5247 ReleaseDC(infoPtr->hwnd, dc);
5248
5249 /* Call default proc to get the scrollbars etc. painted */
5250 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5251
5252 return TRUE;
5253 }
5254
5255 static LRESULT
5256 TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5257 {
5258 LPNMHDR lpnmh = (LPNMHDR)lParam;
5259
5260 if (lpnmh->code == PGN_CALCSIZE) {
5261 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5262
5263 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5264 lppgc->iWidth = infoPtr->treeWidth;
5265 TRACE("got PGN_CALCSIZE, returning horz size = %ld, client=%ld\n",
5266 infoPtr->treeWidth, infoPtr->clientWidth);
5267 }
5268 else {
5269 lppgc->iHeight = infoPtr->treeHeight;
5270 TRACE("got PGN_CALCSIZE, returning vert size = %ld, client=%ld\n",
5271 infoPtr->treeHeight, infoPtr->clientHeight);
5272 }
5273 return 0;
5274 }
5275 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5276 }
5277
5278 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5279 {
5280 INT format;
5281
5282 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5283
5284 if (nCommand != NF_REQUERY) return 0;
5285
5286 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5287 TRACE("format=%d\n", format);
5288
5289 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5290
5291 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5292
5293 return format;
5294 }
5295
5296 static LRESULT
5297 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5298 {
5299 if (wParam == SIZE_RESTORED)
5300 {
5301 infoPtr->clientWidth = (short)LOWORD(lParam);
5302 infoPtr->clientHeight = (short)HIWORD(lParam);
5303
5304 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5305 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5306 TREEVIEW_UpdateScrollBars(infoPtr);
5307 }
5308 else
5309 {
5310 FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
5311 }
5312
5313 TREEVIEW_Invalidate(infoPtr, NULL);
5314 return 0;
5315 }
5316
5317 static LRESULT
5318 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5319 {
5320 TRACE("(%x %lx)\n", wParam, lParam);
5321
5322 if (wParam == GWL_STYLE)
5323 {
5324 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5325
5326 /* we have to take special care about tooltips */
5327 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5328 {
5329 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5330 {
5331 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5332 TRACE("\n");
5333 }
5334 else
5335 {
5336 DestroyWindow(infoPtr->hwndToolTip);
5337 infoPtr->hwndToolTip = 0;
5338 }
5339 }
5340
5341 infoPtr->dwStyle = dwNewStyle;
5342 }
5343
5344 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5345 TREEVIEW_UpdateScrollBars(infoPtr);
5346 TREEVIEW_Invalidate(infoPtr, NULL);
5347
5348 return 0;
5349 }
5350
5351 static LRESULT
5352 TREEVIEW_SetCursor(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5353 {
5354 POINT pt;
5355 TREEVIEW_ITEM * item;
5356
5357 GetCursorPos(&pt);
5358 ScreenToClient(infoPtr->hwnd, &pt);
5359
5360 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5361
5362 /* FIXME: send NM_SETCURSOR */
5363
5364 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5365 {
5366 SetCursor(infoPtr->hcurHand);
5367 return 0;
5368 }
5369 else
5370 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5371 }
5372
5373 static LRESULT
5374 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5375 {
5376 TRACE("\n");
5377
5378 if (!infoPtr->selectedItem)
5379 {
5380 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5381 TVC_UNKNOWN);
5382 }
5383
5384 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5385 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5386 return 0;
5387 }
5388
5389 static LRESULT
5390 TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
5391 {
5392 TRACE("\n");
5393
5394 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5395 UpdateWindow(infoPtr->hwnd);
5396 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5397 return 0;
5398 }
5399
5400 /* update theme after a WM_THEMECHANGED message */
5401 static LRESULT theme_changed (TREEVIEW_INFO* infoPtr)
5402 {
5403 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5404 CloseThemeData (theme);
5405 OpenThemeData (infoPtr->hwnd, themeClass);
5406 return 0;
5407 }
5408
5409
5410 static LRESULT WINAPI
5411 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5412 {
5413 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5414
5415 TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5416
5417 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5418 else
5419 {
5420 if (uMsg == WM_CREATE)
5421 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5422 else
5423 goto def;
5424 }
5425
5426 switch (uMsg)
5427 {
5428 case TVM_CREATEDRAGIMAGE:
5429 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5430
5431 case TVM_DELETEITEM:
5432 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5433
5434 case TVM_EDITLABELA:
5435 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5436
5437 case TVM_EDITLABELW:
5438 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5439
5440 case TVM_ENDEDITLABELNOW:
5441 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5442
5443 case TVM_ENSUREVISIBLE:
5444 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5445
5446 case TVM_EXPAND:
5447 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5448
5449 case TVM_GETBKCOLOR:
5450 return TREEVIEW_GetBkColor(infoPtr);
5451
5452 case TVM_GETCOUNT:
5453 return TREEVIEW_GetCount(infoPtr);
5454
5455 case TVM_GETEDITCONTROL:
5456 return TREEVIEW_GetEditControl(infoPtr);
5457
5458 case TVM_GETIMAGELIST:
5459 return TREEVIEW_GetImageList(infoPtr, wParam);
5460
5461 case TVM_GETINDENT:
5462 return TREEVIEW_GetIndent(infoPtr);
5463
5464 case TVM_GETINSERTMARKCOLOR:
5465 return TREEVIEW_GetInsertMarkColor(infoPtr);
5466
5467 case TVM_GETISEARCHSTRINGA:
5468 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5469 return 0;
5470
5471 case TVM_GETISEARCHSTRINGW:
5472 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5473 return 0;
5474
5475 case TVM_GETITEMA:
5476 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5477
5478 case TVM_GETITEMW:
5479 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5480
5481 case TVM_GETITEMHEIGHT:
5482 return TREEVIEW_GetItemHeight(infoPtr);
5483
5484 case TVM_GETITEMRECT:
5485 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5486
5487 case TVM_GETITEMSTATE:
5488 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5489
5490 case TVM_GETLINECOLOR:
5491 return TREEVIEW_GetLineColor(infoPtr);
5492
5493 case TVM_GETNEXTITEM:
5494 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5495
5496 case TVM_GETSCROLLTIME:
5497 return TREEVIEW_GetScrollTime(infoPtr);
5498
5499 case TVM_GETTEXTCOLOR:
5500 return TREEVIEW_GetTextColor(infoPtr);
5501
5502 case TVM_GETTOOLTIPS:
5503 return TREEVIEW_GetToolTips(infoPtr);
5504
5505 case TVM_GETUNICODEFORMAT:
5506 return TREEVIEW_GetUnicodeFormat(infoPtr);
5507
5508 case TVM_GETVISIBLECOUNT:
5509 return TREEVIEW_GetVisibleCount(infoPtr);
5510
5511 case TVM_HITTEST:
5512 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5513
5514 case TVM_INSERTITEMA:
5515 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5516
5517 case TVM_INSERTITEMW:
5518 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5519
5520 case TVM_SELECTITEM:
5521 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5522
5523 case TVM_SETBKCOLOR:
5524 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5525
5526 case TVM_SETIMAGELIST:
5527 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5528
5529 case TVM_SETINDENT:
5530 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5531
5532 case TVM_SETINSERTMARK:
5533 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5534
5535 case TVM_SETINSERTMARKCOLOR:
5536 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5537
5538 case TVM_SETITEMA:
5539 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5540
5541 case TVM_SETITEMW:
5542 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5543
5544 case TVM_SETLINECOLOR:
5545 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5546
5547 case TVM_SETITEMHEIGHT:
5548 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5549
5550 case TVM_SETSCROLLTIME:
5551 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5552
5553 case TVM_SETTEXTCOLOR:
5554 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5555
5556 case TVM_SETTOOLTIPS:
5557 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5558
5559 case TVM_SETUNICODEFORMAT:
5560 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5561
5562 case TVM_SORTCHILDREN:
5563 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5564
5565 case TVM_SORTCHILDRENCB:
5566 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5567
5568 case WM_CHAR:
5569 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5570
5571 case WM_COMMAND:
5572 return TREEVIEW_Command(infoPtr, wParam, lParam);
5573
5574 case WM_DESTROY:
5575 return TREEVIEW_Destroy(infoPtr);
5576
5577 /* WM_ENABLE */
5578
5579 case WM_ERASEBKGND:
5580 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5581
5582 case WM_GETDLGCODE:
5583 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5584
5585 case WM_GETFONT:
5586 return TREEVIEW_GetFont(infoPtr);
5587
5588 case WM_HSCROLL:
5589 return TREEVIEW_HScroll(infoPtr, wParam);
5590
5591 case WM_KEYDOWN:
5592 return TREEVIEW_KeyDown(infoPtr, wParam);
5593
5594 case WM_KILLFOCUS:
5595 return TREEVIEW_KillFocus(infoPtr);
5596
5597 case WM_LBUTTONDBLCLK:
5598 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5599
5600 case WM_LBUTTONDOWN:
5601 return TREEVIEW_LButtonDown(infoPtr, lParam);
5602
5603 /* WM_MBUTTONDOWN */
5604
5605 case WM_MOUSELEAVE:
5606 return TREEVIEW_MouseLeave(infoPtr);
5607
5608 case WM_MOUSEMOVE:
5609 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5610 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5611 else
5612 return 0;
5613
5614 case WM_NCPAINT:
5615 if (nc_paint (infoPtr, (HRGN)wParam))
5616 return 0;
5617 goto def;
5618
5619 case WM_NOTIFY:
5620 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5621
5622 case WM_NOTIFYFORMAT:
5623 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5624
5625 case WM_PRINTCLIENT:
5626 case WM_PAINT:
5627 return TREEVIEW_Paint(infoPtr, wParam);
5628
5629 case WM_RBUTTONDOWN:
5630 return TREEVIEW_RButtonDown(infoPtr, lParam);
5631
5632 case WM_SETCURSOR:
5633 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5634
5635 case WM_SETFOCUS:
5636 return TREEVIEW_SetFocus(infoPtr);
5637
5638 case WM_SETFONT:
5639 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5640
5641 case WM_SETREDRAW:
5642 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5643
5644 case WM_SIZE:
5645 return TREEVIEW_Size(infoPtr, wParam, lParam);
5646
5647 case WM_STYLECHANGED:
5648 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5649
5650 /* WM_SYSCOLORCHANGE */
5651
5652 /* WM_SYSKEYDOWN */
5653
5654 case WM_TIMER:
5655 return TREEVIEW_HandleTimer(infoPtr, wParam);
5656
5657 case WM_THEMECHANGED:
5658 return theme_changed (infoPtr);
5659
5660 case WM_VSCROLL:
5661 return TREEVIEW_VScroll(infoPtr, wParam);
5662
5663 /* WM_WININICHANGE */
5664
5665 case WM_MOUSEWHEEL:
5666 if (wParam & (MK_SHIFT | MK_CONTROL))
5667 goto def;
5668 return TREEVIEW_MouseWheel(infoPtr, wParam);
5669
5670 case WM_DRAWITEM:
5671 TRACE("drawItem\n");
5672 goto def;
5673
5674 default:
5675 /* This mostly catches MFC and Delphi messages. :( */
5676 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5677 TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
5678 def:
5679 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5680 }
5681 }
5682
5683
5684 /* Class Registration ***************************************************/
5685
5686 VOID
5687 TREEVIEW_Register(void)
5688 {
5689 WNDCLASSW wndClass;
5690
5691 TRACE("\n");
5692
5693 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5694 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5695 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5696 wndClass.cbClsExtra = 0;
5697 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5698
5699 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5700 wndClass.hbrBackground = 0;
5701 wndClass.lpszClassName = WC_TREEVIEWW;
5702
5703 RegisterClassW(&wndClass);
5704 }
5705
5706
5707 VOID
5708 TREEVIEW_Unregister(void)
5709 {
5710 UnregisterClassW(WC_TREEVIEWW, NULL);
5711 }
5712
5713
5714 /* Tree Verification ****************************************************/
5715
5716 #ifdef NDEBUG
5717 static inline void
5718 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5719
5720 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5721 TREEVIEW_ITEM *item)
5722 {
5723 assert(infoPtr != NULL);
5724 assert(item != NULL);
5725
5726 /* both NULL, or both non-null */
5727 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5728
5729 assert(item->firstChild != item);
5730 assert(item->lastChild != item);
5731
5732 if (item->firstChild)
5733 {
5734 assert(item->firstChild->parent == item);
5735 assert(item->firstChild->prevSibling == NULL);
5736 }
5737
5738 if (item->lastChild)
5739 {
5740 assert(item->lastChild->parent == item);
5741 assert(item->lastChild->nextSibling == NULL);
5742 }
5743
5744 assert(item->nextSibling != item);
5745 if (item->nextSibling)
5746 {
5747 assert(item->nextSibling->parent == item->parent);
5748 assert(item->nextSibling->prevSibling == item);
5749 }
5750
5751 assert(item->prevSibling != item);
5752 if (item->prevSibling)
5753 {
5754 assert(item->prevSibling->parent == item->parent);
5755 assert(item->prevSibling->nextSibling == item);
5756 }
5757 }
5758
5759 static inline void
5760 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5761 {
5762 assert(item != NULL);
5763
5764 assert(item->parent != NULL);
5765 assert(item->parent != item);
5766 assert(item->iLevel == item->parent->iLevel + 1);
5767
5768 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5769
5770 TREEVIEW_VerifyItemCommon(infoPtr, item);
5771
5772 TREEVIEW_VerifyChildren(infoPtr, item);
5773 }
5774
5775 static inline void
5776 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5777 {
5778 TREEVIEW_ITEM *child;
5779 assert(item != NULL);
5780
5781 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5782 TREEVIEW_VerifyItem(infoPtr, child);
5783 }
5784
5785 static inline void
5786 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5787 {
5788 TREEVIEW_ITEM *root = infoPtr->root;
5789
5790 assert(root != NULL);
5791 assert(root->iLevel == -1);
5792 assert(root->parent == NULL);
5793 assert(root->prevSibling == NULL);
5794
5795 TREEVIEW_VerifyItemCommon(infoPtr, root);
5796
5797 TREEVIEW_VerifyChildren(infoPtr, root);
5798 }
5799
5800 static void
5801 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5802 {
5803 assert(infoPtr != NULL);
5804
5805 TREEVIEW_VerifyRoot(infoPtr);
5806 }
5807 #endif
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