projects / reactos.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
I don't like this, but add the treeview refresh hack.
[reactos.git] / reactos / dll / win32 / comctl32 / treeview.c
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
37 *
38 * Make the insertion mark look right.
39 * Scroll (instead of repaint) as much as possible.
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <assert.h>
46 #include <ctype.h>
47 #include <stdarg.h>
48 #include <string.h>
49 #include <limits.h>
50 #include <stdlib.h>
51
52 #define NONAMELESSUNION
53 #define NONAMELESSSTRUCT
54 #include "windef.h"
55 #include "winbase.h"
56 #include "wingdi.h"
57 #include "winuser.h"
58 #include "winnls.h"
59 #include "commctrl.h"
60 #include "comctl32.h"
61 #include "uxtheme.h"
62 #include "tmschema.h"
63 #include "wine/unicode.h"
64 #include "wine/debug.h"
65
66 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
67
68 /* internal structures */
69
70 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
71 {
72 UINT callbackMask;
73 UINT state;
74 UINT stateMask;
75 LPWSTR pszText;
76 int cchTextMax;
77 int iImage;
78 int iSelectedImage;
79 int cChildren;
80 LPARAM lParam;
81 int iIntegral; /* item height multiplier (1 is normal) */
82 int iLevel; /* indentation level:0=root level */
83 HTREEITEM parent; /* handle to parent or 0 if at root */
84 HTREEITEM firstChild; /* handle to first child or 0 if no child */
85 HTREEITEM lastChild;
86 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
87 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
88 RECT rect;
89 LONG linesOffset;
90 LONG stateOffset;
91 LONG imageOffset;
92 LONG textOffset;
93 LONG textWidth; /* horizontal text extent for pszText */
94 LONG visibleOrder; /* visible ordering, 0 is first visible item */
95 } TREEVIEW_ITEM;
96
97
98 typedef struct tagTREEVIEW_INFO
99 {
100 HWND hwnd;
101 HWND hwndNotify; /* Owner window to send notifications to */
102 DWORD dwStyle;
103 HTREEITEM root;
104 UINT uInternalStatus;
105 INT Timer;
106 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
107 INT cdmode; /* last custom draw setting */
108 UINT uScrollTime; /* max. time for scrolling in milliseconds */
109 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
110
111 UINT uItemHeight; /* item height */
112 BOOL bHeightSet;
113
114 LONG clientWidth; /* width of control window */
115 LONG clientHeight; /* height of control window */
116
117 LONG treeWidth; /* width of visible tree items */
118 LONG treeHeight; /* height of visible tree items */
119
120 UINT uIndent; /* indentation in pixels */
121 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
122 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
123 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
124 HTREEITEM editItem; /* item being edited with builtin edit box */
125
126 HTREEITEM firstVisible; /* handle to first visible item */
127 LONG maxVisibleOrder;
128 HTREEITEM dropItem; /* handle to item selected by drag cursor */
129 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
130 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
131 HIMAGELIST dragList; /* Bitmap of dragged item */
132 LONG scrollX;
133 COLORREF clrBk;
134 COLORREF clrText;
135 COLORREF clrLine;
136 COLORREF clrInsertMark;
137 HFONT hFont;
138 HFONT hDefaultFont;
139 HFONT hBoldFont;
140 HFONT hUnderlineFont;
141 HCURSOR hcurHand;
142 HWND hwndToolTip;
143
144 HWND hwndEdit;
145 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
146 BOOL bIgnoreEditKillFocus;
147 BOOL bLabelChanged;
148
149 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
150 HIMAGELIST himlNormal;
151 int normalImageHeight;
152 int normalImageWidth;
153 HIMAGELIST himlState;
154 int stateImageHeight;
155 int stateImageWidth;
156 HDPA items;
157
158 DWORD lastKeyPressTimestamp;
159 WPARAM charCode;
160 INT nSearchParamLength;
161 WCHAR szSearchParam[ MAX_PATH ];
162 } TREEVIEW_INFO;
163
164
165 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
166 #define KEY_DELAY 450
167
168 /* bitflags for infoPtr->uInternalStatus */
169
170 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
171 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
172 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
173 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
174 #define TV_RDRAG 0x10 /* ditto Rbutton */
175 #define TV_RDRAGGING 0x20
176
177 /* bitflags for infoPtr->timer */
178
179 #define TV_EDIT_TIMER 2
180 #define TV_EDIT_TIMER_SET 2
181
182 #define TEXT_CALLBACK_SIZE 260
183
184 #define TREEVIEW_LEFT_MARGIN 8
185
186 #define MINIMUM_INDENT 19
187
188 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
189
190 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
191 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
192 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
193
194 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
195 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
196 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
197 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
198
199 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
200
201
202 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
203
204
205 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
206
207 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
208 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
209 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
210 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
211 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
212 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
213 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
214
215 /* Random Utilities *****************************************************/
216
217 #ifndef NDEBUG
218 static inline void
219 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
220 {
221 (void)infoPtr;
222 }
223 #else
224 /* The definition is at the end of the file. */
225 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
226 #endif
227
228 /* Returns the treeview private data if hwnd is a treeview.
229 * Otherwise returns an undefined value. */
230 static TREEVIEW_INFO *
231 TREEVIEW_GetInfoPtr(HWND hwnd)
232 {
233 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
234 }
235
236 /* Don't call this. Nothing wants an item index. */
237 static inline int
238 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
239 {
240 return DPA_GetPtrIndex(infoPtr->items, handle);
241 }
242
243 /* Checks if item has changed and needs to be redrawn */
244 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
245 const TVITEMEXW *tvChange)
246 {
247 /* Number of children has changed */
248 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
249 return TRUE;
250
251 /* Image has changed and it's not a callback */
252 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
253 tiNew->iImage != I_IMAGECALLBACK)
254 return TRUE;
255
256 /* Selected image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
258 tiNew->iSelectedImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Text has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
263 tiNew->pszText != LPSTR_TEXTCALLBACKW)
264 return TRUE;
265
266 /* Indent has changed */
267 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
268 return TRUE;
269
270 /* Item state has changed */
271 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
272 return TRUE;
273
274 return FALSE;
275 }
276
277 /***************************************************************************
278 * This method checks that handle is an item for this tree.
279 */
280 static BOOL
281 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
282 {
283 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
284 {
285 TRACE("invalid item %p\n", handle);
286 return FALSE;
287 }
288 else
289 return TRUE;
290 }
291
292 static HFONT
293 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
294 {
295 LOGFONTW font;
296
297 GetObjectW(hOrigFont, sizeof(font), &font);
298 font.lfWeight = FW_BOLD;
299 return CreateFontIndirectW(&font);
300 }
301
302 static HFONT
303 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
304 {
305 LOGFONTW font;
306
307 GetObjectW(hOrigFont, sizeof(font), &font);
308 font.lfUnderline = TRUE;
309 return CreateFontIndirectW(&font);
310 }
311
312 static inline HFONT
313 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
314 {
315 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
316 return infoPtr->hUnderlineFont;
317 if (item->state & TVIS_BOLD)
318 return infoPtr->hBoldFont;
319 return infoPtr->hFont;
320 }
321
322 /* for trace/debugging purposes only */
323 static const char *
324 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
325 {
326 if (item == NULL) return "<null item>";
327 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
328 if (item->pszText == NULL) return "<null>";
329 return debugstr_w(item->pszText);
330 }
331
332 /* An item is not a child of itself. */
333 static BOOL
334 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
335 {
336 do
337 {
338 child = child->parent;
339 if (child == parent) return TRUE;
340 } while (child != NULL);
341
342 return FALSE;
343 }
344
345
346 /* Tree Traversal *******************************************************/
347
348 /***************************************************************************
349 * This method returns the last expanded sibling or child child item
350 * of a tree node
351 */
352 static TREEVIEW_ITEM *
353 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
354 {
355 if (!wineItem)
356 return NULL;
357
358 while (wineItem->lastChild)
359 {
360 if (wineItem->state & TVIS_EXPANDED)
361 wineItem = wineItem->lastChild;
362 else
363 break;
364 }
365
366 if (wineItem == infoPtr->root)
367 return NULL;
368
369 return wineItem;
370 }
371
372 /***************************************************************************
373 * This method returns the previous non-hidden item in the list not
374 * considering the tree hierarchy.
375 */
376 static TREEVIEW_ITEM *
377 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
378 {
379 if (tvItem->prevSibling)
380 {
381 /* This item has a prevSibling, get the last item in the sibling's tree. */
382 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
383
384 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
385 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
386 else
387 return upItem;
388 }
389 else
390 {
391 /* this item does not have a prevSibling, get the parent */
392 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
393 }
394 }
395
396
397 /***************************************************************************
398 * This method returns the next physical item in the treeview not
399 * considering the tree hierarchy.
400 */
401 static TREEVIEW_ITEM *
402 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
403 {
404 /*
405 * If this item has children and is expanded, return the first child
406 */
407 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
408 {
409 return tvItem->firstChild;
410 }
411
412
413 /*
414 * try to get the sibling
415 */
416 if (tvItem->nextSibling)
417 return tvItem->nextSibling;
418
419 /*
420 * Otherwise, get the parent's sibling.
421 */
422 while (tvItem->parent)
423 {
424 tvItem = tvItem->parent;
425
426 if (tvItem->nextSibling)
427 return tvItem->nextSibling;
428 }
429
430 return NULL;
431 }
432
433 /***************************************************************************
434 * This method returns the nth item starting at the given item. It returns
435 * the last item (or first) we we run out of items.
436 *
437 * Will scroll backward if count is <0.
438 * forward if count is >0.
439 */
440 static TREEVIEW_ITEM *
441 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
442 LONG count)
443 {
444 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
445 TREEVIEW_ITEM *previousItem;
446
447 assert(wineItem != NULL);
448
449 if (count > 0)
450 {
451 next_item = TREEVIEW_GetNextListItem;
452 }
453 else if (count < 0)
454 {
455 count = -count;
456 next_item = TREEVIEW_GetPrevListItem;
457 }
458 else
459 return wineItem;
460
461 do
462 {
463 previousItem = wineItem;
464 wineItem = next_item(infoPtr, wineItem);
465
466 } while (--count && wineItem != NULL);
467
468
469 return wineItem ? wineItem : previousItem;
470 }
471
472 /* Notifications ************************************************************/
473
474 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
475 {
476 if (!infoPtr->bNtfUnicode) {
477 switch (code) {
478 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
479 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
480 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
481 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
482 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
483 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
484 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
485 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
486 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
487 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
488 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
489 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
490 }
491 }
492 return code;
493 }
494
495 static LRESULT
496 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
497 {
498 TRACE("wParam=%ld, lParam=%ld\n", wParam, lParam);
499 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
500 }
501
502 static BOOL
503 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
504 {
505 NMHDR nmhdr;
506 HWND hwnd = infoPtr->hwnd;
507
508 TRACE("%d\n", code);
509 nmhdr.hwndFrom = hwnd;
510 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
511 nmhdr.code = get_notifycode(infoPtr, code);
512
513 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, (LPARAM)&nmhdr);
514 }
515
516 static VOID
517 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
518 {
519 tvItem->mask = mask;
520 tvItem->hItem = item;
521 tvItem->state = item->state;
522 tvItem->stateMask = 0;
523 tvItem->iImage = item->iImage;
524 tvItem->iSelectedImage = item->iSelectedImage;
525 tvItem->cChildren = item->cChildren;
526 tvItem->lParam = item->lParam;
527
528 if(mask & TVIF_TEXT)
529 {
530 if (!infoPtr->bNtfUnicode)
531 {
532 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
533 tvItem->pszText = Alloc (tvItem->cchTextMax);
534 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
535 }
536 else
537 {
538 tvItem->cchTextMax = item->cchTextMax;
539 tvItem->pszText = item->pszText;
540 }
541 }
542 else
543 {
544 tvItem->cchTextMax = 0;
545 tvItem->pszText = NULL;
546 }
547 }
548
549 static BOOL
550 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
551 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
552 {
553 HWND hwnd = infoPtr->hwnd;
554 NMTREEVIEWW nmhdr;
555 BOOL ret;
556
557 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
558 code, action, oldItem, newItem);
559
560 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
561
562 nmhdr.hdr.hwndFrom = hwnd;
563 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
564 nmhdr.hdr.code = get_notifycode(infoPtr, code);
565 nmhdr.action = action;
566
567 if (oldItem)
568 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
569
570 if (newItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
572
573 nmhdr.ptDrag.x = 0;
574 nmhdr.ptDrag.y = 0;
575
576 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
577 if (!infoPtr->bNtfUnicode)
578 {
579 Free(nmhdr.itemOld.pszText);
580 Free(nmhdr.itemNew.pszText);
581 }
582 return ret;
583 }
584
585 static BOOL
586 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
587 HTREEITEM dragItem, POINT pt)
588 {
589 HWND hwnd = infoPtr->hwnd;
590 NMTREEVIEWW nmhdr;
591
592 TRACE("code:%d dragitem:%p\n", code, dragItem);
593
594 nmhdr.hdr.hwndFrom = hwnd;
595 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
596 nmhdr.hdr.code = get_notifycode(infoPtr, code);
597 nmhdr.action = 0;
598 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
599 nmhdr.itemNew.hItem = dragItem;
600 nmhdr.itemNew.state = dragItem->state;
601 nmhdr.itemNew.lParam = dragItem->lParam;
602
603 nmhdr.ptDrag.x = pt.x;
604 nmhdr.ptDrag.y = pt.y;
605
606 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
607 }
608
609
610 static BOOL
611 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
612 HDC hdc, RECT rc)
613 {
614 HWND hwnd = infoPtr->hwnd;
615 NMTVCUSTOMDRAW nmcdhdr;
616 LPNMCUSTOMDRAW nmcd;
617
618 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
619
620 nmcd = &nmcdhdr.nmcd;
621 nmcd->hdr.hwndFrom = hwnd;
622 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
623 nmcd->hdr.code = NM_CUSTOMDRAW;
624 nmcd->dwDrawStage = dwDrawStage;
625 nmcd->hdc = hdc;
626 nmcd->rc = rc;
627 nmcd->dwItemSpec = 0;
628 nmcd->uItemState = 0;
629 nmcd->lItemlParam = 0;
630 nmcdhdr.clrText = infoPtr->clrText;
631 nmcdhdr.clrTextBk = infoPtr->clrBk;
632 nmcdhdr.iLevel = 0;
633
634 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)&nmcdhdr);
635 }
636
637
638
639 /* FIXME: need to find out when the flags in uItemState need to be set */
640
641 static BOOL
642 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
643 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
644 NMTVCUSTOMDRAW *nmcdhdr)
645 {
646 HWND hwnd = infoPtr->hwnd;
647 LPNMCUSTOMDRAW nmcd;
648 DWORD dwDrawStage;
649 DWORD_PTR dwItemSpec;
650 UINT uItemState;
651 INT retval;
652
653 dwDrawStage = CDDS_ITEM | uItemDrawState;
654 dwItemSpec = (DWORD_PTR)wineItem;
655 uItemState = 0;
656 if (wineItem->state & TVIS_SELECTED)
657 uItemState |= CDIS_SELECTED;
658 if (wineItem == infoPtr->selectedItem)
659 uItemState |= CDIS_FOCUS;
660 if (wineItem == infoPtr->hotItem)
661 uItemState |= CDIS_HOT;
662
663 nmcd = &nmcdhdr->nmcd;
664 nmcd->hdr.hwndFrom = hwnd;
665 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
666 nmcd->hdr.code = NM_CUSTOMDRAW;
667 nmcd->dwDrawStage = dwDrawStage;
668 nmcd->hdc = hdc;
669 nmcd->rc = wineItem->rect;
670 nmcd->dwItemSpec = dwItemSpec;
671 nmcd->uItemState = uItemState;
672 nmcd->lItemlParam = wineItem->lParam;
673 nmcdhdr->iLevel = wineItem->iLevel;
674
675 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
676 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
677 nmcd->uItemState, nmcd->lItemlParam);
678
679 retval = TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)nmcdhdr);
680
681 return retval;
682 }
683
684 static BOOL
685 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
686 {
687 HWND hwnd = infoPtr->hwnd;
688 NMTVDISPINFOW tvdi;
689 BOOL ret;
690
691 tvdi.hdr.hwndFrom = hwnd;
692 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
693 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
694
695 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
696 &tvdi.item, editItem);
697
698 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
699
700 if (!infoPtr->bNtfUnicode)
701 Free(tvdi.item.pszText);
702
703 return ret;
704 }
705
706 static void
707 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
708 UINT mask)
709 {
710 NMTVDISPINFOEXW callback;
711 HWND hwnd = infoPtr->hwnd;
712
713 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
714 mask &= wineItem->callbackMask;
715
716 if (mask == 0) return;
717
718 callback.hdr.hwndFrom = hwnd;
719 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
720 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
721
722 /* 'state' always contains valid value, as well as 'lParam'.
723 * All other parameters are uninitialized.
724 */
725 callback.item.pszText = wineItem->pszText;
726 callback.item.cchTextMax = wineItem->cchTextMax;
727 callback.item.mask = mask;
728 callback.item.hItem = wineItem;
729 callback.item.state = wineItem->state;
730 callback.item.lParam = wineItem->lParam;
731
732 /* If text is changed we need to recalculate textWidth */
733 if (mask & TVIF_TEXT)
734 wineItem->textWidth = 0;
735
736 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, (LPARAM)&callback);
737
738 /* It may have changed due to a call to SetItem. */
739 mask &= wineItem->callbackMask;
740
741 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
742 {
743 /* Instead of copying text into our buffer user specified its own */
744 if (!infoPtr->bNtfUnicode) {
745 LPWSTR newText;
746 int buflen;
747 int len = MultiByteToWideChar( CP_ACP, 0,
748 (LPSTR)callback.item.pszText, -1,
749 NULL, 0);
750 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
751 newText = ReAlloc(wineItem->pszText, buflen);
752
753 TRACE("returned str %s, len=%d, buflen=%d\n",
754 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
755
756 if (newText)
757 {
758 wineItem->pszText = newText;
759 MultiByteToWideChar( CP_ACP, 0,
760 (LPSTR)callback.item.pszText, -1,
761 wineItem->pszText, buflen/sizeof(WCHAR));
762 wineItem->cchTextMax = buflen/sizeof(WCHAR);
763 }
764 /* If ReAlloc fails we have nothing to do, but keep original text */
765 }
766 else {
767 int len = max(lstrlenW(callback.item.pszText) + 1,
768 TEXT_CALLBACK_SIZE);
769 LPWSTR newText = ReAlloc(wineItem->pszText, len);
770
771 TRACE("returned wstr %s, len=%d\n",
772 debugstr_w(callback.item.pszText), len);
773
774 if (newText)
775 {
776 wineItem->pszText = newText;
777 strcpyW(wineItem->pszText, callback.item.pszText);
778 wineItem->cchTextMax = len;
779 }
780 /* If ReAlloc fails we have nothing to do, but keep original text */
781 }
782 }
783 else if (mask & TVIF_TEXT) {
784 /* User put text into our buffer, that is ok unless A string */
785 if (!infoPtr->bNtfUnicode) {
786 LPWSTR newText;
787 LPWSTR oldText = NULL;
788 int buflen;
789 int len = MultiByteToWideChar( CP_ACP, 0,
790 (LPSTR)callback.item.pszText, -1,
791 NULL, 0);
792 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
793 newText = Alloc(buflen);
794
795 TRACE("same buffer str %s, len=%d, buflen=%d\n",
796 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
797
798 if (newText)
799 {
800 oldText = wineItem->pszText;
801 wineItem->pszText = newText;
802 MultiByteToWideChar( CP_ACP, 0,
803 (LPSTR)callback.item.pszText, -1,
804 wineItem->pszText, buflen/sizeof(WCHAR));
805 wineItem->cchTextMax = buflen/sizeof(WCHAR);
806 Free(oldText);
807 }
808 }
809 }
810
811 if (mask & TVIF_IMAGE)
812 wineItem->iImage = callback.item.iImage;
813
814 if (mask & TVIF_SELECTEDIMAGE)
815 wineItem->iSelectedImage = callback.item.iSelectedImage;
816
817 if (mask & TVIF_CHILDREN)
818 wineItem->cChildren = callback.item.cChildren;
819
820 /* These members are now permanently set. */
821 if (callback.item.mask & TVIF_DI_SETITEM)
822 wineItem->callbackMask &= ~callback.item.mask;
823 }
824
825 /***************************************************************************
826 * This function uses cChildren field to decide whether the item has
827 * children or not.
828 * Note: if this returns TRUE, the child items may not actually exist,
829 * they could be virtual.
830 *
831 * Just use wineItem->firstChild to check for physical children.
832 */
833 static BOOL
834 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
835 {
836 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
837
838 return wineItem->cChildren > 0;
839 }
840
841 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
842 {
843 INT format;
844
845 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
846
847 if (nCommand != NF_REQUERY) return 0;
848
849 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
850 TRACE("format=%d\n", format);
851
852 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
853
854 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
855
856 return format;
857 }
858
859 /* Item Position ********************************************************/
860
861 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
862 static VOID
863 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
864 {
865 /* Same effect, different optimisation. */
866 #if 0
867 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
868 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
869 #else
870 BOOL lar = ((infoPtr->dwStyle
871 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
872 > TVS_LINESATROOT);
873 #endif
874
875 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
876 - infoPtr->scrollX;
877 item->stateOffset = item->linesOffset + infoPtr->uIndent;
878 item->imageOffset = item->stateOffset
879 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
880 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
881 }
882
883 static VOID
884 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
885 {
886 HDC hdc;
887 HFONT hOldFont=0;
888 SIZE sz;
889
890 /* DRAW's OM docker creates items like this */
891 if (item->pszText == NULL)
892 {
893 item->textWidth = 0;
894 return;
895 }
896
897 if (hDC != 0)
898 {
899 hdc = hDC;
900 }
901 else
902 {
903 hdc = GetDC(infoPtr->hwnd);
904 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
905 }
906
907 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
908 item->textWidth = sz.cx;
909
910 if (hDC == 0)
911 {
912 SelectObject(hdc, hOldFont);
913 ReleaseDC(0, hdc);
914 }
915 }
916
917 static VOID
918 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
919 {
920 item->rect.top = infoPtr->uItemHeight *
921 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
922
923 item->rect.bottom = item->rect.top
924 + infoPtr->uItemHeight * item->iIntegral - 1;
925
926 item->rect.left = 0;
927 item->rect.right = infoPtr->clientWidth;
928 }
929
930 /* We know that only items after start need their order updated. */
931 static void
932 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
933 {
934 TREEVIEW_ITEM *item;
935 int order;
936
937 if (!start)
938 {
939 start = infoPtr->root->firstChild;
940 order = 0;
941 }
942 else
943 order = start->visibleOrder;
944
945 for (item = start; item != NULL;
946 item = TREEVIEW_GetNextListItem(infoPtr, item))
947 {
948 if (!ISVISIBLE(item) && order > 0)
949 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
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(const 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(const TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 /* I_IMAGENONE would make more sense but this is neither what is
1014 * documented (MSDN doesn't specify) nor what Windows actually does
1015 * (it sets it to zero)... and I can so imagine an application using
1016 * inc/dec to toggle the images. */
1017 newItem->iImage = 0;
1018 newItem->iSelectedImage = 0;
1019
1020 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1021 {
1022 Free(newItem);
1023 return NULL;
1024 }
1025
1026 return newItem;
1027 }
1028
1029 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1030 * free item->pszText. */
1031 static void
1032 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1033 {
1034 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1035 if (infoPtr->selectedItem == item)
1036 infoPtr->selectedItem = NULL;
1037 if (infoPtr->hotItem == item)
1038 infoPtr->hotItem = NULL;
1039 if (infoPtr->focusedItem == item)
1040 infoPtr->focusedItem = NULL;
1041 if (infoPtr->firstVisible == item)
1042 infoPtr->firstVisible = NULL;
1043 if (infoPtr->dropItem == item)
1044 infoPtr->dropItem = NULL;
1045 if (infoPtr->insertMarkItem == item)
1046 infoPtr->insertMarkItem = NULL;
1047 Free(item);
1048 }
1049
1050
1051 /* Item Insertion *******************************************************/
1052
1053 /***************************************************************************
1054 * This method inserts newItem before sibling as a child of parent.
1055 * sibling can be NULL, but only if parent has no children.
1056 */
1057 static void
1058 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1059 TREEVIEW_ITEM *parent)
1060 {
1061 assert(parent != NULL);
1062
1063 if (sibling != NULL)
1064 {
1065 assert(sibling->parent == parent);
1066
1067 if (sibling->prevSibling != NULL)
1068 sibling->prevSibling->nextSibling = newItem;
1069
1070 newItem->prevSibling = sibling->prevSibling;
1071 sibling->prevSibling = newItem;
1072 }
1073 else
1074 newItem->prevSibling = NULL;
1075
1076 newItem->nextSibling = sibling;
1077
1078 if (parent->firstChild == sibling)
1079 parent->firstChild = newItem;
1080
1081 if (parent->lastChild == NULL)
1082 parent->lastChild = newItem;
1083 }
1084
1085 /***************************************************************************
1086 * This method inserts newItem after sibling as a child of parent.
1087 * sibling can be NULL, but only if parent has no children.
1088 */
1089 static void
1090 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1091 TREEVIEW_ITEM *parent)
1092 {
1093 assert(parent != NULL);
1094
1095 if (sibling != NULL)
1096 {
1097 assert(sibling->parent == parent);
1098
1099 if (sibling->nextSibling != NULL)
1100 sibling->nextSibling->prevSibling = newItem;
1101
1102 newItem->nextSibling = sibling->nextSibling;
1103 sibling->nextSibling = newItem;
1104 }
1105 else
1106 newItem->nextSibling = NULL;
1107
1108 newItem->prevSibling = sibling;
1109
1110 if (parent->lastChild == sibling)
1111 parent->lastChild = newItem;
1112
1113 if (parent->firstChild == NULL)
1114 parent->firstChild = newItem;
1115 }
1116
1117 static BOOL
1118 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1119 const TVITEMEXW *tvItem, BOOL isW)
1120 {
1121 UINT callbackClear = 0;
1122 UINT callbackSet = 0;
1123
1124 TRACE("item %p\n", wineItem);
1125 /* Do this first in case it fails. */
1126 if (tvItem->mask & TVIF_TEXT)
1127 {
1128 wineItem->textWidth = 0; /* force width recalculation */
1129 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1130 {
1131 int len;
1132 LPWSTR newText;
1133 if (isW)
1134 len = lstrlenW(tvItem->pszText) + 1;
1135 else
1136 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1137
1138 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1139
1140 if (newText == NULL) return FALSE;
1141
1142 callbackClear |= TVIF_TEXT;
1143
1144 wineItem->pszText = newText;
1145 wineItem->cchTextMax = len;
1146 if (isW)
1147 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1148 else
1149 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1150 wineItem->pszText, len);
1151
1152 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1153 }
1154 else
1155 {
1156 callbackSet |= TVIF_TEXT;
1157
1158 wineItem->pszText = ReAlloc(wineItem->pszText,
1159 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1160 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1161 TRACE("setting callback, item %p\n", wineItem);
1162 }
1163 }
1164
1165 if (tvItem->mask & TVIF_CHILDREN)
1166 {
1167 wineItem->cChildren = tvItem->cChildren;
1168
1169 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1170 callbackSet |= TVIF_CHILDREN;
1171 else
1172 callbackClear |= TVIF_CHILDREN;
1173 }
1174
1175 if (tvItem->mask & TVIF_IMAGE)
1176 {
1177 wineItem->iImage = tvItem->iImage;
1178
1179 if (wineItem->iImage == I_IMAGECALLBACK)
1180 callbackSet |= TVIF_IMAGE;
1181 else
1182 callbackClear |= TVIF_IMAGE;
1183 }
1184
1185 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1186 {
1187 wineItem->iSelectedImage = tvItem->iSelectedImage;
1188
1189 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1190 callbackSet |= TVIF_SELECTEDIMAGE;
1191 else
1192 callbackClear |= TVIF_SELECTEDIMAGE;
1193 }
1194
1195 if (tvItem->mask & TVIF_PARAM)
1196 wineItem->lParam = tvItem->lParam;
1197
1198 /* If the application sets TVIF_INTEGRAL without
1199 * supplying a TVITEMEX structure, it's toast. */
1200 if (tvItem->mask & TVIF_INTEGRAL)
1201 wineItem->iIntegral = tvItem->iIntegral;
1202
1203 if (tvItem->mask & TVIF_STATE)
1204 {
1205 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1206 tvItem->stateMask);
1207 wineItem->state &= ~tvItem->stateMask;
1208 wineItem->state |= (tvItem->state & tvItem->stateMask);
1209 }
1210
1211 wineItem->callbackMask |= callbackSet;
1212 wineItem->callbackMask &= ~callbackClear;
1213
1214 return TRUE;
1215 }
1216
1217 /* Note that the new item is pre-zeroed. */
1218 static LRESULT
1219 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1220 {
1221 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1222 HTREEITEM insertAfter;
1223 TREEVIEW_ITEM *newItem, *parentItem;
1224 BOOL bTextUpdated = FALSE;
1225
1226 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1227 {
1228 parentItem = infoPtr->root;
1229 }
1230 else
1231 {
1232 parentItem = ptdi->hParent;
1233
1234 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1235 {
1236 WARN("invalid parent %p\n", parentItem);
1237 return 0;
1238 }
1239 }
1240
1241 insertAfter = ptdi->hInsertAfter;
1242
1243 /* Validate this now for convenience. */
1244 switch ((DWORD_PTR)insertAfter)
1245 {
1246 case (DWORD_PTR)TVI_FIRST:
1247 case (DWORD_PTR)TVI_LAST:
1248 case (DWORD_PTR)TVI_SORT:
1249 break;
1250
1251 default:
1252 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1253 insertAfter->parent != parentItem)
1254 {
1255 WARN("invalid insert after %p\n", insertAfter);
1256 insertAfter = TVI_LAST;
1257 }
1258 }
1259
1260 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1261 (tvItem->mask & TVIF_TEXT)
1262 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1263 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1264 : "<no label>");
1265
1266 newItem = TREEVIEW_AllocateItem(infoPtr);
1267 if (newItem == NULL)
1268 return 0;
1269
1270 newItem->parent = parentItem;
1271 newItem->iIntegral = 1;
1272 newItem->visibleOrder = -1;
1273
1274 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1275 return 0;
1276
1277 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1278
1279 infoPtr->uNumItems++;
1280
1281 switch ((DWORD_PTR)insertAfter)
1282 {
1283 case (DWORD_PTR)TVI_FIRST:
1284 {
1285 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1286 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1287 if (infoPtr->firstVisible == originalFirst)
1288 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1289 }
1290 break;
1291
1292 case (DWORD_PTR)TVI_LAST:
1293 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1294 break;
1295
1296 /* hInsertAfter names a specific item we want to insert after */
1297 default:
1298 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1299 break;
1300
1301 case (DWORD_PTR)TVI_SORT:
1302 {
1303 TREEVIEW_ITEM *aChild;
1304 TREEVIEW_ITEM *previousChild = NULL;
1305 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1306 BOOL bItemInserted = FALSE;
1307
1308 aChild = parentItem->firstChild;
1309
1310 bTextUpdated = TRUE;
1311 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1312
1313 /* Iterate the parent children to see where we fit in */
1314 while (aChild != NULL)
1315 {
1316 INT comp;
1317
1318 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1319 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1320
1321 if (comp < 0) /* we are smaller than the current one */
1322 {
1323 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1324 if (infoPtr->firstVisible == originalFirst &&
1325 aChild == originalFirst)
1326 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1327 bItemInserted = TRUE;
1328 break;
1329 }
1330 else if (comp > 0) /* we are bigger than the current one */
1331 {
1332 previousChild = aChild;
1333
1334 /* This will help us to exit if there is no more sibling */
1335 aChild = (aChild->nextSibling == 0)
1336 ? NULL
1337 : aChild->nextSibling;
1338
1339 /* Look at the next item */
1340 continue;
1341 }
1342 else if (comp == 0)
1343 {
1344 /*
1345 * An item with this name is already existing, therefore,
1346 * we add after the one we found
1347 */
1348 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1349 bItemInserted = TRUE;
1350 break;
1351 }
1352 }
1353
1354 /*
1355 * we reach the end of the child list and the item has not
1356 * yet been inserted, therefore, insert it after the last child.
1357 */
1358 if ((!bItemInserted) && (aChild == NULL))
1359 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1360
1361 break;
1362 }
1363 }
1364
1365
1366 TRACE("new item %p; parent %p, mask %x\n", newItem,
1367 newItem->parent, tvItem->mask);
1368
1369 newItem->iLevel = newItem->parent->iLevel + 1;
1370
1371 if (newItem->parent->cChildren == 0)
1372 newItem->parent->cChildren = 1;
1373
1374 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1375 {
1376 if (STATEIMAGEINDEX(newItem->state) == 0)
1377 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1378 }
1379
1380 if (infoPtr->firstVisible == NULL)
1381 infoPtr->firstVisible = newItem;
1382
1383 TREEVIEW_VerifyTree(infoPtr);
1384
1385 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1386
1387 if (parentItem == infoPtr->root ||
1388 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1389 {
1390 TREEVIEW_ITEM *item;
1391 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1392
1393 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1394 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1395
1396 if (!bTextUpdated)
1397 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1398
1399 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1400 TREEVIEW_UpdateScrollBars(infoPtr);
1401 /*
1402 * if the item was inserted in a visible part of the tree,
1403 * invalidate it, as well as those after it
1404 */
1405 for (item = newItem;
1406 item != NULL;
1407 item = TREEVIEW_GetNextListItem(infoPtr, item))
1408 TREEVIEW_Invalidate(infoPtr, item);
1409 }
1410 else
1411 {
1412 /* refresh treeview if newItem is the first item inserted under parentItem */
1413 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1414 {
1415 /* parent got '+' - update it */
1416 TREEVIEW_Invalidate(infoPtr, parentItem);
1417 }
1418 }
1419
1420 return (LRESULT)newItem;
1421 }
1422
1423 /* Item Deletion ************************************************************/
1424 static void
1425 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1426
1427 static void
1428 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1429 {
1430 TREEVIEW_ITEM *kill = parentItem->firstChild;
1431
1432 while (kill != NULL)
1433 {
1434 TREEVIEW_ITEM *next = kill->nextSibling;
1435
1436 TREEVIEW_RemoveItem(infoPtr, kill);
1437
1438 kill = next;
1439 }
1440
1441 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1442 assert(parentItem->firstChild == NULL);
1443 assert(parentItem->lastChild == NULL);
1444 }
1445
1446 static void
1447 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1448 {
1449 TREEVIEW_ITEM *parentItem = item->parent;
1450
1451 assert(item != NULL);
1452 assert(item->parent != NULL); /* i.e. it must not be the root */
1453
1454 if (parentItem->firstChild == item)
1455 parentItem->firstChild = item->nextSibling;
1456
1457 if (parentItem->lastChild == item)
1458 parentItem->lastChild = item->prevSibling;
1459
1460 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1461 && parentItem->cChildren > 0)
1462 parentItem->cChildren = 0;
1463
1464 if (item->prevSibling)
1465 item->prevSibling->nextSibling = item->nextSibling;
1466
1467 if (item->nextSibling)
1468 item->nextSibling->prevSibling = item->prevSibling;
1469 }
1470
1471 static void
1472 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1473 {
1474 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1475
1476 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1477 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1478
1479 if (wineItem->firstChild)
1480 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1481
1482 TREEVIEW_UnlinkItem(wineItem);
1483
1484 infoPtr->uNumItems--;
1485
1486 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1487 Free(wineItem->pszText);
1488
1489 TREEVIEW_FreeItem(infoPtr, wineItem);
1490 }
1491
1492
1493 /* Empty out the tree. */
1494 static void
1495 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1496 {
1497 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1498
1499 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1500 }
1501
1502 static LRESULT
1503 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1504 {
1505 TREEVIEW_ITEM *newSelection = NULL;
1506 TREEVIEW_ITEM *newFirstVisible = NULL;
1507 TREEVIEW_ITEM *parent, *prev = NULL;
1508 BOOL visible = FALSE;
1509
1510 if (wineItem == TVI_ROOT)
1511 {
1512 TRACE("TVI_ROOT\n");
1513 parent = infoPtr->root;
1514 newSelection = NULL;
1515 visible = TRUE;
1516 TREEVIEW_RemoveTree(infoPtr);
1517 }
1518 else
1519 {
1520 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1521 return FALSE;
1522
1523 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1524 parent = wineItem->parent;
1525
1526 if (ISVISIBLE(wineItem))
1527 {
1528 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1529 visible = TRUE;
1530 }
1531
1532 if (infoPtr->selectedItem != NULL
1533 && (wineItem == infoPtr->selectedItem
1534 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1535 {
1536 if (wineItem->nextSibling)
1537 newSelection = wineItem->nextSibling;
1538 else if (wineItem->parent != infoPtr->root)
1539 newSelection = wineItem->parent;
1540 else
1541 newSelection = wineItem->prevSibling;
1542 TRACE("newSelection = %p\n", newSelection);
1543 }
1544
1545 if (infoPtr->firstVisible == wineItem)
1546 {
1547 if (wineItem->nextSibling)
1548 newFirstVisible = wineItem->nextSibling;
1549 else if (wineItem->prevSibling)
1550 newFirstVisible = wineItem->prevSibling;
1551 else if (wineItem->parent != infoPtr->root)
1552 newFirstVisible = wineItem->parent;
1553 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1554 }
1555 else
1556 newFirstVisible = infoPtr->firstVisible;
1557
1558 TREEVIEW_RemoveItem(infoPtr, wineItem);
1559 }
1560
1561 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1562 if (!infoPtr->selectedItem && newSelection)
1563 {
1564 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1565 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1566 }
1567
1568 /* Validate insertMark dropItem.
1569 * hotItem ??? - used for comparison only.
1570 */
1571 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1572 infoPtr->insertMarkItem = 0;
1573
1574 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1575 infoPtr->dropItem = 0;
1576
1577 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1578 newFirstVisible = infoPtr->root->firstChild;
1579
1580 TREEVIEW_VerifyTree(infoPtr);
1581
1582 if (!infoPtr->bRedraw) return TRUE;
1583
1584 if (visible)
1585 {
1586 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1587 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1588 TREEVIEW_UpdateScrollBars(infoPtr);
1589 TREEVIEW_Invalidate(infoPtr, NULL);
1590 }
1591 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1592 {
1593 /* parent lost '+/-' - update it */
1594 TREEVIEW_Invalidate(infoPtr, parent);
1595 }
1596
1597 return TRUE;
1598 }
1599
1600
1601 /* Get/Set Messages *********************************************************/
1602 static LRESULT
1603 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1604 {
1605 infoPtr->bRedraw = wParam ? TRUE : FALSE;
1606
1607 if (infoPtr->bRedraw)
1608 {
1609 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1610 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1611 TREEVIEW_UpdateScrollBars(infoPtr);
1612 TREEVIEW_Invalidate(infoPtr, NULL);
1613 }
1614 return 0;
1615 }
1616
1617 static LRESULT
1618 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1619 {
1620 TRACE("\n");
1621 return infoPtr->uIndent;
1622 }
1623
1624 static LRESULT
1625 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1626 {
1627 TRACE("\n");
1628
1629 if (newIndent < MINIMUM_INDENT)
1630 newIndent = MINIMUM_INDENT;
1631
1632 if (infoPtr->uIndent != newIndent)
1633 {
1634 infoPtr->uIndent = newIndent;
1635 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1636 TREEVIEW_UpdateScrollBars(infoPtr);
1637 TREEVIEW_Invalidate(infoPtr, NULL);
1638 }
1639
1640 return 0;
1641 }
1642
1643
1644 static LRESULT
1645 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1646 {
1647 TRACE("\n");
1648 return (LRESULT)infoPtr->hwndToolTip;
1649 }
1650
1651 static LRESULT
1652 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1653 {
1654 HWND prevToolTip;
1655
1656 TRACE("\n");
1657 prevToolTip = infoPtr->hwndToolTip;
1658 infoPtr->hwndToolTip = hwndTT;
1659
1660 return (LRESULT)prevToolTip;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1665 {
1666 BOOL rc = infoPtr->bNtfUnicode;
1667 infoPtr->bNtfUnicode = fUnicode;
1668 return rc;
1669 }
1670
1671 static LRESULT
1672 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1673 {
1674 return infoPtr->bNtfUnicode;
1675 }
1676
1677 static LRESULT
1678 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1679 {
1680 return infoPtr->uScrollTime;
1681 }
1682
1683 static LRESULT
1684 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1685 {
1686 UINT uOldScrollTime = infoPtr->uScrollTime;
1687
1688 infoPtr->uScrollTime = min(uScrollTime, 100);
1689
1690 return uOldScrollTime;
1691 }
1692
1693
1694 static LRESULT
1695 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1696 {
1697 TRACE("\n");
1698
1699 switch (wParam)
1700 {
1701 case TVSIL_NORMAL:
1702 return (LRESULT)infoPtr->himlNormal;
1703
1704 case TVSIL_STATE:
1705 return (LRESULT)infoPtr->himlState;
1706
1707 default:
1708 return 0;
1709 }
1710 }
1711
1712 #define TVHEIGHT_MIN 16
1713 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1714
1715 /* Compute the natural height for items. */
1716 static UINT
1717 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1718 {
1719 TEXTMETRICW tm;
1720 HDC hdc = GetDC(0);
1721 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1722 UINT height;
1723
1724 /* Height is the maximum of:
1725 * 16 (a hack because our fonts are tiny), and
1726 * The text height + border & margin, and
1727 * The size of the normal image list
1728 */
1729 GetTextMetricsW(hdc, &tm);
1730 SelectObject(hdc, hOldFont);
1731 ReleaseDC(0, hdc);
1732
1733 height = TVHEIGHT_MIN;
1734 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1735 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1736 if (height < infoPtr->normalImageHeight)
1737 height = infoPtr->normalImageHeight;
1738
1739 /* Round down, unless we support odd ("non even") heights. */
1740 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1741 height &= ~1;
1742
1743 return height;
1744 }
1745
1746 static LRESULT
1747 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1748 {
1749 HIMAGELIST himlOld = 0;
1750 int oldWidth = infoPtr->normalImageWidth;
1751 int oldHeight = infoPtr->normalImageHeight;
1752
1753
1754 TRACE("%lx,%p\n", wParam, himlNew);
1755
1756 switch (wParam)
1757 {
1758 case TVSIL_NORMAL:
1759 himlOld = infoPtr->himlNormal;
1760 infoPtr->himlNormal = himlNew;
1761
1762 if (himlNew != NULL)
1763 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1764 &infoPtr->normalImageHeight);
1765 else
1766 {
1767 infoPtr->normalImageWidth = 0;
1768 infoPtr->normalImageHeight = 0;
1769 }
1770
1771 break;
1772
1773 case TVSIL_STATE:
1774 himlOld = infoPtr->himlState;
1775 infoPtr->himlState = himlNew;
1776
1777 if (himlNew != NULL)
1778 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1779 &infoPtr->stateImageHeight);
1780 else
1781 {
1782 infoPtr->stateImageWidth = 0;
1783 infoPtr->stateImageHeight = 0;
1784 }
1785
1786 break;
1787 }
1788
1789 if (oldWidth != infoPtr->normalImageWidth ||
1790 oldHeight != infoPtr->normalImageHeight)
1791 {
1792 BOOL bRecalcVisible = FALSE;
1793
1794 if (oldHeight != infoPtr->normalImageHeight &&
1795 !infoPtr->bHeightSet)
1796 {
1797 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1798 bRecalcVisible = TRUE;
1799 }
1800
1801 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1802 infoPtr->normalImageWidth != infoPtr->uIndent)
1803 {
1804 infoPtr->uIndent = infoPtr->normalImageWidth;
1805 bRecalcVisible = TRUE;
1806 }
1807
1808 if (bRecalcVisible)
1809 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1810
1811 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1812 TREEVIEW_UpdateScrollBars(infoPtr);
1813 }
1814
1815 TREEVIEW_Invalidate(infoPtr, NULL);
1816
1817 return (LRESULT)himlOld;
1818 }
1819
1820 static LRESULT
1821 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1822 {
1823 INT prevHeight = infoPtr->uItemHeight;
1824
1825 TRACE("%d\n", newHeight);
1826 if (newHeight == -1)
1827 {
1828 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1829 infoPtr->bHeightSet = FALSE;
1830 }
1831 else
1832 {
1833 infoPtr->uItemHeight = newHeight;
1834 infoPtr->bHeightSet = TRUE;
1835 }
1836
1837 /* Round down, unless we support odd ("non even") heights. */
1838 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1839 infoPtr->uItemHeight &= ~1;
1840
1841 if (infoPtr->uItemHeight != prevHeight)
1842 {
1843 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1844 TREEVIEW_UpdateScrollBars(infoPtr);
1845 TREEVIEW_Invalidate(infoPtr, NULL);
1846 }
1847
1848 return prevHeight;
1849 }
1850
1851 static LRESULT
1852 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1853 {
1854 TRACE("\n");
1855 return infoPtr->uItemHeight;
1856 }
1857
1858
1859 static LRESULT
1860 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1861 {
1862 TRACE("%p\n", infoPtr->hFont);
1863 return (LRESULT)infoPtr->hFont;
1864 }
1865
1866
1867 static INT CALLBACK
1868 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1869 {
1870 (void)unused;
1871
1872 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1873
1874 return 1;
1875 }
1876
1877 static LRESULT
1878 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1879 {
1880 UINT uHeight = infoPtr->uItemHeight;
1881
1882 TRACE("%p %i\n", hFont, bRedraw);
1883
1884 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1885
1886 DeleteObject(infoPtr->hBoldFont);
1887 DeleteObject(infoPtr->hUnderlineFont);
1888 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1889 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1890
1891 if (!infoPtr->bHeightSet)
1892 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1893
1894 if (uHeight != infoPtr->uItemHeight)
1895 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1896
1897 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1898
1899 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1900 TREEVIEW_UpdateScrollBars(infoPtr);
1901
1902 if (bRedraw)
1903 TREEVIEW_Invalidate(infoPtr, NULL);
1904
1905 return 0;
1906 }
1907
1908
1909 static LRESULT
1910 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1911 {
1912 TRACE("\n");
1913 return (LRESULT)infoPtr->clrLine;
1914 }
1915
1916 static LRESULT
1917 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1918 {
1919 COLORREF prevColor = infoPtr->clrLine;
1920
1921 TRACE("\n");
1922 infoPtr->clrLine = color;
1923 return (LRESULT)prevColor;
1924 }
1925
1926
1927 static LRESULT
1928 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1929 {
1930 TRACE("\n");
1931 return (LRESULT)infoPtr->clrText;
1932 }
1933
1934 static LRESULT
1935 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1936 {
1937 COLORREF prevColor = infoPtr->clrText;
1938
1939 TRACE("\n");
1940 infoPtr->clrText = color;
1941
1942 if (infoPtr->clrText != prevColor)
1943 TREEVIEW_Invalidate(infoPtr, NULL);
1944
1945 return (LRESULT)prevColor;
1946 }
1947
1948
1949 static LRESULT
1950 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1951 {
1952 TRACE("\n");
1953 return (LRESULT)infoPtr->clrBk;
1954 }
1955
1956 static LRESULT
1957 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1958 {
1959 COLORREF prevColor = infoPtr->clrBk;
1960
1961 TRACE("\n");
1962 infoPtr->clrBk = newColor;
1963
1964 if (newColor != prevColor)
1965 TREEVIEW_Invalidate(infoPtr, NULL);
1966
1967 return (LRESULT)prevColor;
1968 }
1969
1970
1971 static LRESULT
1972 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1973 {
1974 TRACE("\n");
1975 return (LRESULT)infoPtr->clrInsertMark;
1976 }
1977
1978 static LRESULT
1979 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1980 {
1981 COLORREF prevColor = infoPtr->clrInsertMark;
1982
1983 TRACE("%x\n", color);
1984 infoPtr->clrInsertMark = color;
1985
1986 return (LRESULT)prevColor;
1987 }
1988
1989
1990 static LRESULT
1991 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1992 {
1993 TRACE("%d %p\n", wParam, item);
1994
1995 if (!TREEVIEW_ValidItem(infoPtr, item))
1996 return 0;
1997
1998 infoPtr->insertBeforeorAfter = wParam;
1999 infoPtr->insertMarkItem = item;
2000
2001 TREEVIEW_Invalidate(infoPtr, NULL);
2002
2003 return 1;
2004 }
2005
2006
2007 /************************************************************************
2008 * Some serious braindamage here. lParam is a pointer to both the
2009 * input HTREEITEM and the output RECT.
2010 */
2011 static LRESULT
2012 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2013 {
2014 TREEVIEW_ITEM *wineItem;
2015 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2016
2017 TRACE("\n");
2018 /*
2019 * validate parameters
2020 */
2021 if (pItem == NULL)
2022 return FALSE;
2023
2024 wineItem = *pItem;
2025 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2026 return FALSE;
2027
2028 /*
2029 * If wParam is TRUE return the text size otherwise return
2030 * the whole item size
2031 */
2032 if (fTextRect)
2033 {
2034 /* Windows does not send TVN_GETDISPINFO here. */
2035
2036 lpRect->top = wineItem->rect.top;
2037 lpRect->bottom = wineItem->rect.bottom;
2038
2039 lpRect->left = wineItem->textOffset;
2040 if (!wineItem->textWidth)
2041 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2042
2043 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2044 }
2045 else
2046 {
2047 *lpRect = wineItem->rect;
2048 }
2049
2050 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2051
2052 return TRUE;
2053 }
2054
2055 static inline LRESULT
2056 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2057 {
2058 /* Surprise! This does not take integral height into account. */
2059 return infoPtr->clientHeight / infoPtr->uItemHeight;
2060 }
2061
2062
2063 static LRESULT
2064 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2065 {
2066 TREEVIEW_ITEM *wineItem;
2067
2068 wineItem = tvItem->hItem;
2069 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2070 return FALSE;
2071
2072 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2073
2074 if (tvItem->mask & TVIF_CHILDREN)
2075 {
2076 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2077 FIXME("I_CHILDRENCALLBACK not supported\n");
2078 tvItem->cChildren = wineItem->cChildren;
2079 }
2080
2081 if (tvItem->mask & TVIF_HANDLE)
2082 tvItem->hItem = wineItem;
2083
2084 if (tvItem->mask & TVIF_IMAGE)
2085 tvItem->iImage = wineItem->iImage;
2086
2087 if (tvItem->mask & TVIF_INTEGRAL)
2088 tvItem->iIntegral = wineItem->iIntegral;
2089
2090 /* undocumented: windows ignores TVIF_PARAM and
2091 * * always sets lParam
2092 */
2093 tvItem->lParam = wineItem->lParam;
2094
2095 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2096 tvItem->iSelectedImage = wineItem->iSelectedImage;
2097
2098 if (tvItem->mask & TVIF_STATE)
2099 /* Careful here - Windows ignores the stateMask when you get the state
2100 That contradicts the documentation, but makes more common sense, masking
2101 retrieval in this way seems overkill */
2102 tvItem->state = wineItem->state;
2103
2104 if (tvItem->mask & TVIF_TEXT)
2105 {
2106 if (wineItem->pszText == NULL)
2107 {
2108 if (tvItem->cchTextMax > 0)
2109 tvItem->pszText[0] = '\0';
2110 }
2111 else if (isW)
2112 {
2113 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2114 {
2115 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2116 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2117 }
2118 else
2119 {
2120 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2121 }
2122 }
2123 else
2124 {
2125 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2126 {
2127 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2128 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2129 }
2130 else
2131 {
2132 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2133 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2134 }
2135 }
2136 }
2137 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2138 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2139
2140 return TRUE;
2141 }
2142
2143 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2144 * which is wrong. */
2145 static LRESULT
2146 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2147 {
2148 TREEVIEW_ITEM *wineItem;
2149 TREEVIEW_ITEM originalItem;
2150
2151 wineItem = tvItem->hItem;
2152
2153 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2154 tvItem->mask);
2155
2156 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2157 return FALSE;
2158
2159 /* store the original item values */
2160 originalItem = *wineItem;
2161
2162 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2163 return FALSE;
2164
2165 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2166 if ((tvItem->mask & TVIF_TEXT
2167 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2168 && ISVISIBLE(wineItem))
2169 {
2170 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2171 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2172 }
2173
2174 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2175 {
2176 /* The refresh updates everything, but we can't wait until then. */
2177 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2178
2179 /* if any of the item's values changed and it's not a callback, redraw the item */
2180 if (item_changed(&originalItem, wineItem, tvItem))
2181 {
2182 if (tvItem->mask & TVIF_INTEGRAL)
2183 {
2184 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2185 TREEVIEW_UpdateScrollBars(infoPtr);
2186
2187 TREEVIEW_Invalidate(infoPtr, NULL);
2188 }
2189 else
2190 {
2191 TREEVIEW_UpdateScrollBars(infoPtr);
2192 TREEVIEW_Invalidate(infoPtr, wineItem);
2193 }
2194 }
2195 }
2196
2197 return TRUE;
2198 }
2199
2200 static LRESULT
2201 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2202 {
2203 TRACE("\n");
2204
2205 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2206 return 0;
2207
2208 return (wineItem->state & mask);
2209 }
2210
2211 static LRESULT
2212 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2213 {
2214 TREEVIEW_ITEM *retval;
2215
2216 retval = 0;
2217
2218 /* handle all the global data here */
2219 switch (which)
2220 {
2221 case TVGN_CHILD: /* Special case: child of 0 is root */
2222 if (wineItem)
2223 break;
2224 /* fall through */
2225 case TVGN_ROOT:
2226 retval = infoPtr->root->firstChild;
2227 break;
2228
2229 case TVGN_CARET:
2230 retval = infoPtr->selectedItem;
2231 break;
2232
2233 case TVGN_FIRSTVISIBLE:
2234 retval = infoPtr->firstVisible;
2235 break;
2236
2237 case TVGN_DROPHILITE:
2238 retval = infoPtr->dropItem;
2239 break;
2240
2241 case TVGN_LASTVISIBLE:
2242 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2243 break;
2244 }
2245
2246 if (retval)
2247 {
2248 TRACE("flags:%x, returns %p\n", which, retval);
2249 return (LRESULT)retval;
2250 }
2251
2252 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2253
2254 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2255 return FALSE;
2256
2257 switch (which)
2258 {
2259 case TVGN_NEXT:
2260 retval = wineItem->nextSibling;
2261 break;
2262 case TVGN_PREVIOUS:
2263 retval = wineItem->prevSibling;
2264 break;
2265 case TVGN_PARENT:
2266 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2267 break;
2268 case TVGN_CHILD:
2269 retval = wineItem->firstChild;
2270 break;
2271 case TVGN_NEXTVISIBLE:
2272 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2273 break;
2274 case TVGN_PREVIOUSVISIBLE:
2275 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2276 break;
2277 default:
2278 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2279 break;
2280 }
2281
2282 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2283 return (LRESULT)retval;
2284 }
2285
2286
2287 static LRESULT
2288 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2289 {
2290 TRACE(" %d\n", infoPtr->uNumItems);
2291 return (LRESULT)infoPtr->uNumItems;
2292 }
2293
2294 static VOID
2295 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2296 {
2297 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2298 {
2299 static const unsigned int state_table[] = { 0, 2, 1 };
2300
2301 unsigned int state;
2302
2303 state = STATEIMAGEINDEX(item->state);
2304 TRACE("state:%x\n", state);
2305 item->state &= ~TVIS_STATEIMAGEMASK;
2306
2307 if (state < 3)
2308 state = state_table[state];
2309
2310 item->state |= INDEXTOSTATEIMAGEMASK(state);
2311
2312 TRACE("state:%x\n", state);
2313 TREEVIEW_Invalidate(infoPtr, item);
2314 }
2315 }
2316
2317
2318 /* Painting *************************************************************/
2319
2320 /* Draw the lines and expand button for an item. Also draws one section
2321 * of the line from item's parent to item's parent's next sibling. */
2322 static void
2323 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2324 {
2325 LONG centerx, centery;
2326 BOOL lar = ((infoPtr->dwStyle
2327 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2328 > TVS_LINESATROOT);
2329 HBRUSH hbr, hbrOld;
2330 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2331
2332 if (!lar && item->iLevel == 0)
2333 return;
2334
2335 hbr = CreateSolidBrush(clrBk);
2336 hbrOld = SelectObject(hdc, hbr);
2337
2338 centerx = (item->linesOffset + item->stateOffset) / 2;
2339 centery = (item->rect.top + item->rect.bottom) / 2;
2340
2341 if (infoPtr->dwStyle & TVS_HASLINES)
2342 {
2343 HPEN hOldPen, hNewPen;
2344 HTREEITEM parent;
2345 LOGBRUSH lb;
2346
2347 /* Get a dotted grey pen */
2348 lb.lbStyle = BS_SOLID;
2349 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2350 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2351 hOldPen = SelectObject(hdc, hNewPen);
2352
2353 /* Make sure the center is on a dot (using +2 instead
2354 * of +1 gives us pixel-by-pixel compat with native) */
2355 centery = (centery + 2) & ~1;
2356
2357 MoveToEx(hdc, item->stateOffset, centery, NULL);
2358 LineTo(hdc, centerx - 1, centery);
2359
2360 if (item->prevSibling || item->parent != infoPtr->root)
2361 {
2362 MoveToEx(hdc, centerx, item->rect.top, NULL);
2363 LineTo(hdc, centerx, centery);
2364 }
2365
2366 if (item->nextSibling)
2367 {
2368 MoveToEx(hdc, centerx, centery, NULL);
2369 LineTo(hdc, centerx, item->rect.bottom + 1);
2370 }
2371
2372 /* Draw the line from our parent to its next sibling. */
2373 parent = item->parent;
2374 while (parent != infoPtr->root)
2375 {
2376 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2377
2378 if (parent->nextSibling
2379 /* skip top-levels unless TVS_LINESATROOT */
2380 && parent->stateOffset > parent->linesOffset)
2381 {
2382 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2383 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2384 }
2385
2386 parent = parent->parent;
2387 }
2388
2389 SelectObject(hdc, hOldPen);
2390 DeleteObject(hNewPen);
2391 }
2392
2393 /*
2394 * Display the (+/-) signs
2395 */
2396
2397 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2398 {
2399 if (item->cChildren)
2400 {
2401 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2402 if (theme)
2403 {
2404 RECT glyphRect = item->rect;
2405 glyphRect.left = item->linesOffset;
2406 glyphRect.right = item->stateOffset;
2407 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2408 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2409 &glyphRect, NULL);
2410 }
2411 else
2412 {
2413 LONG height = item->rect.bottom - item->rect.top;
2414 LONG width = item->stateOffset - item->linesOffset;
2415 LONG rectsize = min(height, width) / 4;
2416 /* plussize = ceil(rectsize * 3/4) */
2417 LONG plussize = (rectsize + 1) * 3 / 4;
2418
2419 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2420 HPEN old_pen = SelectObject(hdc, new_pen);
2421
2422 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2423 centerx + rectsize + 2, centery + rectsize + 2);
2424
2425 SelectObject(hdc, old_pen);
2426 DeleteObject(new_pen);
2427
2428 /* draw +/- signs with current text color */
2429 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2430 old_pen = SelectObject(hdc, new_pen);
2431
2432 if (height < 18 || width < 18)
2433 {
2434 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2435 LineTo(hdc, centerx + plussize, centery);
2436
2437 if (!(item->state & TVIS_EXPANDED))
2438 {
2439 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2440 LineTo(hdc, centerx, centery + plussize);
2441 }
2442 }
2443 else
2444 {
2445 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2446 centerx + plussize, centery + 2);
2447
2448 if (!(item->state & TVIS_EXPANDED))
2449 {
2450 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2451 centerx + 2, centery + plussize);
2452 SetPixel(hdc, centerx - 1, centery, clrBk);
2453 SetPixel(hdc, centerx + 1, centery, clrBk);
2454 }
2455 }
2456
2457 SelectObject(hdc, old_pen);
2458 DeleteObject(new_pen);
2459 }
2460 }
2461 }
2462 SelectObject(hdc, hbrOld);
2463 DeleteObject(hbr);
2464 }
2465
2466 static void
2467 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2468 {
2469 INT cditem;
2470 HFONT hOldFont;
2471 COLORREF oldTextColor, oldTextBkColor;
2472 int centery;
2473 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2474 NMTVCUSTOMDRAW nmcdhdr;
2475
2476 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2477
2478 /* - If item is drop target or it is selected and window is in focus -
2479 * use blue background (COLOR_HIGHLIGHT).
2480 * - If item is selected, window is not in focus, but it has style
2481 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2482 * - Otherwise - use background color
2483 */
2484 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2485 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2486 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2487 {
2488 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2489 {
2490 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2491 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2492 }
2493 else
2494 {
2495 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2496 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2497 }
2498 }
2499 else
2500 {
2501 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2502 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2503 nmcdhdr.clrText = comctl32_color.clrHighlight;
2504 else
2505 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2506 }
2507
2508 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2509
2510 /* The custom draw handler can query the text rectangle,
2511 * so get ready. */
2512 /* should already be known, set to 0 when changed */
2513 if (!wineItem->textWidth)
2514 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2515
2516 cditem = 0;
2517
2518 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2519 {
2520 cditem = TREEVIEW_SendCustomDrawItemNotify
2521 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2522 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2523
2524 if (cditem & CDRF_SKIPDEFAULT)
2525 {
2526 SelectObject(hdc, hOldFont);
2527 return;
2528 }
2529 }
2530
2531 if (cditem & CDRF_NEWFONT)
2532 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2533
2534 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2535
2536 /* Set colors. Custom draw handler can change these so we do this after it. */
2537 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2538 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2539
2540 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2541
2542 /*
2543 * Display the images associated with this item
2544 */
2545 {
2546 INT imageIndex;
2547
2548 /* State images are displayed to the left of the Normal image
2549 * image number is in state; zero should be `display no image'.
2550 */
2551 imageIndex = STATEIMAGEINDEX(wineItem->state);
2552
2553 if (infoPtr->himlState && imageIndex)
2554 {
2555 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2556 wineItem->stateOffset,
2557 centery - infoPtr->stateImageHeight / 2,
2558 ILD_NORMAL);
2559 }
2560
2561 /* Now, draw the normal image; can be either selected or
2562 * non-selected image.
2563 */
2564
2565 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2566 {
2567 /* The item is currently selected */
2568 imageIndex = wineItem->iSelectedImage;
2569 }
2570 else
2571 {
2572 /* The item is not selected */
2573 imageIndex = wineItem->iImage;
2574 }
2575
2576 if (infoPtr->himlNormal)
2577 {
2578 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2579
2580 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2581 wineItem->imageOffset,
2582 centery - infoPtr->normalImageHeight / 2,
2583 ILD_NORMAL | ovlIdx);
2584 }
2585 }
2586
2587
2588 /*
2589 * Display the text associated with this item
2590 */
2591
2592 /* Don't paint item's text if it's being edited */
2593 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2594 {
2595 if (wineItem->pszText)
2596 {
2597 RECT rcText;
2598
2599 rcText.top = wineItem->rect.top;
2600 rcText.bottom = wineItem->rect.bottom;
2601 rcText.left = wineItem->textOffset;
2602 rcText.right = rcText.left + wineItem->textWidth + 4;
2603
2604 TRACE("drawing text %s at (%s)\n",
2605 debugstr_w(wineItem->pszText), wine_dbgstr_rect(&rcText));
2606
2607 /* Draw it */
2608 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2609 ETO_CLIPPED | ETO_OPAQUE,
2610 &rcText,
2611 wineItem->pszText,
2612 lstrlenW(wineItem->pszText),
2613 NULL);
2614
2615 /* Draw the box around the selected item */
2616 if ((wineItem == infoPtr->selectedItem) && inFocus)
2617 {
2618 DrawFocusRect(hdc,&rcText);
2619 }
2620
2621 }
2622 }
2623
2624 /* Draw insertion mark if necessary */
2625
2626 if (infoPtr->insertMarkItem)
2627 TRACE("item:%d,mark:%p\n",
2628 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2629 infoPtr->insertMarkItem);
2630
2631 if (wineItem == infoPtr->insertMarkItem)
2632 {
2633 HPEN hNewPen, hOldPen;
2634 int offset;
2635 int left, right;
2636
2637 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2638 hOldPen = SelectObject(hdc, hNewPen);
2639
2640 if (infoPtr->insertBeforeorAfter)
2641 offset = wineItem->rect.bottom - 1;
2642 else
2643 offset = wineItem->rect.top + 1;
2644
2645 left = wineItem->textOffset - 2;
2646 right = wineItem->textOffset + wineItem->textWidth + 2;
2647
2648 MoveToEx(hdc, left, offset - 3, NULL);
2649 LineTo(hdc, left, offset + 4);
2650
2651 MoveToEx(hdc, left, offset, NULL);
2652 LineTo(hdc, right + 1, offset);
2653
2654 MoveToEx(hdc, right, offset + 3, NULL);
2655 LineTo(hdc, right, offset - 4);
2656
2657 SelectObject(hdc, hOldPen);
2658 DeleteObject(hNewPen);
2659 }
2660
2661 if (cditem & CDRF_NOTIFYPOSTPAINT)
2662 {
2663 cditem = TREEVIEW_SendCustomDrawItemNotify
2664 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2665 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2666 }
2667
2668 /* Restore the hdc state */
2669 SetTextColor(hdc, oldTextColor);
2670 SetBkColor(hdc, oldTextBkColor);
2671 SelectObject(hdc, hOldFont);
2672 }
2673
2674 /* Computes treeHeight and treeWidth and updates the scroll bars.
2675 */
2676 static void
2677 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2678 {
2679 TREEVIEW_ITEM *wineItem;
2680 HWND hwnd = infoPtr->hwnd;
2681 BOOL vert = FALSE;
2682 BOOL horz = FALSE;
2683 SCROLLINFO si;
2684 LONG scrollX = infoPtr->scrollX;
2685
2686 infoPtr->treeWidth = 0;
2687 infoPtr->treeHeight = 0;
2688
2689 /* We iterate through all visible items in order to get the tree height
2690 * and width */
2691 wineItem = infoPtr->root->firstChild;
2692
2693 while (wineItem != NULL)
2694 {
2695 if (ISVISIBLE(wineItem))
2696 {
2697 /* actually we draw text at textOffset + 2 */
2698 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2699 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2700
2701 /* This is scroll-adjusted, but we fix this below. */
2702 infoPtr->treeHeight = wineItem->rect.bottom;
2703 }
2704
2705 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2706 }
2707
2708 /* Fix the scroll adjusted treeHeight and treeWidth. */
2709 if (infoPtr->root->firstChild)
2710 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2711
2712 infoPtr->treeWidth += infoPtr->scrollX;
2713
2714 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2715
2716 /* Adding one scroll bar may take up enough space that it forces us
2717 * to add the other as well. */
2718 if (infoPtr->treeHeight > infoPtr->clientHeight)
2719 {
2720 vert = TRUE;
2721
2722 if (infoPtr->treeWidth
2723 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2724 horz = TRUE;
2725 }
2726 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2727 horz = TRUE;
2728
2729 if (!vert && horz && infoPtr->treeHeight
2730 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2731 vert = TRUE;
2732
2733 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2734
2735 si.cbSize = sizeof(SCROLLINFO);
2736 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2737 si.nMin = 0;
2738
2739 if (vert)
2740 {
2741 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2742 if ( si.nPage && NULL != infoPtr->firstVisible)
2743 {
2744 si.nPos = infoPtr->firstVisible->visibleOrder;
2745 si.nMax = infoPtr->maxVisibleOrder - 1;
2746
2747 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2748
2749 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2750 ShowScrollBar(hwnd, SB_VERT, TRUE);
2751 infoPtr->uInternalStatus |= TV_VSCROLL;
2752 }
2753 else
2754 {
2755 if (infoPtr->uInternalStatus & TV_VSCROLL)
2756 ShowScrollBar(hwnd, SB_VERT, FALSE);
2757 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2758 }
2759 }
2760 else
2761 {
2762 if (infoPtr->uInternalStatus & TV_VSCROLL)
2763 ShowScrollBar(hwnd, SB_VERT, FALSE);
2764 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2765 }
2766
2767 if (horz)
2768 {
2769 si.nPage = infoPtr->clientWidth;
2770 si.nPos = infoPtr->scrollX;
2771 si.nMax = infoPtr->treeWidth - 1;
2772
2773 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2774 {
2775 si.nPos = si.nMax - max( si.nPage-1, 0 );
2776 scrollX = si.nPos;
2777 }
2778
2779 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2780 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2781 infoPtr->uInternalStatus |= TV_HSCROLL;
2782
2783 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2784 TREEVIEW_HScroll(infoPtr,
2785 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2786 }
2787 else
2788 {
2789 if (infoPtr->uInternalStatus & TV_HSCROLL)
2790 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2791 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2792
2793 scrollX = 0;
2794 if (infoPtr->scrollX != 0)
2795 {
2796 TREEVIEW_HScroll(infoPtr,
2797 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2798 }
2799 }
2800
2801 if (!horz)
2802 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2803 }
2804
2805 static void
2806 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2807 {
2808 HBRUSH hBrush;
2809 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2810
2811 hBrush = CreateSolidBrush(clrBk);
2812 FillRect(hdc, rc, hBrush);
2813 DeleteObject(hBrush);
2814 }
2815
2816 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2817 static LRESULT
2818 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2819 {
2820 RECT rect;
2821
2822 TRACE("%p\n", infoPtr);
2823
2824 GetClientRect(infoPtr->hwnd, &rect);
2825 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2826
2827 return 1;
2828 }
2829
2830 static void
2831 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2832 {
2833 HWND hwnd = infoPtr->hwnd;
2834 RECT rect = *rc;
2835 TREEVIEW_ITEM *wineItem;
2836
2837 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2838 {
2839 TRACE("empty window\n");
2840 return;
2841 }
2842
2843 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2844 hdc, rect);
2845
2846 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2847 {
2848 ReleaseDC(hwnd, hdc);
2849 return;
2850 }
2851
2852 for (wineItem = infoPtr->root->firstChild;
2853 wineItem != NULL;
2854 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2855 {
2856 if (ISVISIBLE(wineItem))
2857 {
2858 /* Avoid unneeded calculations */
2859 if (wineItem->rect.top > rect.bottom)
2860 break;
2861 if (wineItem->rect.bottom < rect.top)
2862 continue;
2863
2864 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2865 }
2866 }
2867
2868 //
2869 // This is correct, but is causes and infinite loop of WM_PAINT messages, resulting
2870 // in continuous painting of the scroll bar in reactos. Comment out until the real
2871 // bug is found
2872 //
2873 //TREEVIEW_UpdateScrollBars(infoPtr);
2874
2875 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2876 infoPtr->cdmode =
2877 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2878 }
2879
2880 static inline void
2881 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2882 {
2883 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2884 }
2885
2886 static void
2887 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2888 {
2889 if (item)
2890 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2891 else
2892 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2893 }
2894
2895 static LRESULT
2896 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2897 {
2898 HDC hdc;
2899 PAINTSTRUCT ps;
2900 RECT rc;
2901
2902 TRACE("\n");
2903
2904 if (hdc_ref)
2905 {
2906 hdc = hdc_ref;
2907 GetClientRect(infoPtr->hwnd, &rc);
2908 }
2909 else
2910 {
2911 hdc = BeginPaint(infoPtr->hwnd, &ps);
2912 rc = ps.rcPaint;
2913 if(ps.fErase)
2914 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2915 }
2916
2917 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2918 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2919
2920 if (!hdc_ref)
2921 EndPaint(infoPtr->hwnd, &ps);
2922
2923 return 0;
2924 }
2925
2926 static LRESULT
2927 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
2928 {
2929 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
2930
2931 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
2932 return 0;
2933
2934 if (options & PRF_ERASEBKGND)
2935 TREEVIEW_EraseBackground(infoPtr, hdc);
2936
2937 if (options & PRF_CLIENT)
2938 {
2939 RECT rc;
2940 GetClientRect(infoPtr->hwnd, &rc);
2941 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2942 }
2943
2944 return 0;
2945 }
2946
2947 /* Sorting **************************************************************/
2948
2949 /***************************************************************************
2950 * Forward the DPA local callback to the treeview owner callback
2951 */
2952 static INT WINAPI
2953 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2954 const TVSORTCB *pCallBackSort)
2955 {
2956 /* Forward the call to the client-defined callback */
2957 return pCallBackSort->lpfnCompare(first->lParam,
2958 second->lParam,
2959 pCallBackSort->lParam);
2960 }
2961
2962 /***************************************************************************
2963 * Treeview native sort routine: sort on item text.
2964 */
2965 static INT WINAPI
2966 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2967 const TREEVIEW_INFO *infoPtr)
2968 {
2969 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2970 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2971
2972 if(first->pszText && second->pszText)
2973 return lstrcmpiW(first->pszText, second->pszText);
2974 else if(first->pszText)
2975 return -1;
2976 else if(second->pszText)
2977 return 1;
2978 else
2979 return 0;
2980 }
2981
2982 /* Returns the number of physical children belonging to item. */
2983 static INT
2984 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
2985 {
2986 INT cChildren = 0;
2987 HTREEITEM hti;
2988
2989 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2990 cChildren++;
2991
2992 return cChildren;
2993 }
2994
2995 /* Returns a DPA containing a pointer to each physical child of item in
2996 * sibling order. If item has no children, an empty DPA is returned. */
2997 static HDPA
2998 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
2999 {
3000 HTREEITEM child = item->firstChild;
3001
3002 HDPA list = DPA_Create(8);
3003 if (list == 0) return NULL;
3004
3005 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3006 {
3007 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3008 {
3009 DPA_Destroy(list);
3010 return NULL;
3011 }
3012 }
3013
3014 return list;
3015 }
3016
3017 /***************************************************************************
3018 * Setup the treeview structure with regards of the sort method
3019 * and sort the children of the TV item specified in lParam
3020 * fRecurse: currently unused. Should be zero.
3021 * parent: if pSort!=NULL, should equal pSort->hParent.
3022 * otherwise, item which child items are to be sorted.
3023 * pSort: sort method info. if NULL, sort on item text.
3024 * if non-NULL, sort on item's lParam content, and let the
3025 * application decide what that means. See also TVM_SORTCHILDRENCB.
3026 */
3027
3028 static LRESULT
3029 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3030 LPTVSORTCB pSort)
3031 {
3032 INT cChildren;
3033 PFNDPACOMPARE pfnCompare;
3034 LPARAM lpCompare;
3035
3036 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3037 if (parent == TVI_ROOT || parent == NULL)
3038 parent = infoPtr->root;
3039
3040 /* Check for a valid handle to the parent item */
3041 if (!TREEVIEW_ValidItem(infoPtr, parent))
3042 {
3043 ERR("invalid item hParent=%p\n", parent);
3044 return FALSE;
3045 }
3046
3047 if (pSort)
3048 {
3049 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3050 lpCompare = (LPARAM)pSort;
3051 }
3052 else
3053 {
3054 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3055 lpCompare = (LPARAM)infoPtr;
3056 }
3057
3058 cChildren = TREEVIEW_CountChildren(parent);
3059
3060 /* Make sure there is something to sort */
3061 if (cChildren > 1)
3062 {
3063 /* TREEVIEW_ITEM rechaining */
3064 INT count = 0;
3065 HTREEITEM item = 0;
3066 HTREEITEM nextItem = 0;
3067 HTREEITEM prevItem = 0;
3068
3069 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3070
3071 if (sortList == NULL)
3072 return FALSE;
3073
3074 /* let DPA sort the list */
3075 DPA_Sort(sortList, pfnCompare, lpCompare);
3076
3077 /* The order of DPA entries has been changed, so fixup the
3078 * nextSibling and prevSibling pointers. */
3079
3080 item = DPA_GetPtr(sortList, count++);
3081 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3082 {
3083 /* link the two current item together */
3084 item->nextSibling = nextItem;
3085 nextItem->prevSibling = item;
3086
3087 if (prevItem == NULL)
3088 {
3089 /* this is the first item, update the parent */
3090 parent->firstChild = item;
3091 item->prevSibling = NULL;
3092 }
3093 else
3094 {
3095 /* fix the back chaining */
3096 item->prevSibling = prevItem;
3097 }
3098
3099 /* get ready for the next one */
3100 prevItem = item;
3101 item = nextItem;
3102 }
3103
3104 /* the last item is pointed to by item and never has a sibling */
3105 item->nextSibling = NULL;
3106 parent->lastChild = item;
3107
3108 DPA_Destroy(sortList);
3109
3110 TREEVIEW_VerifyTree(infoPtr);
3111
3112 if (parent->state & TVIS_EXPANDED)
3113 {
3114 int visOrder = infoPtr->firstVisible->visibleOrder;
3115
3116 if (parent == infoPtr->root)
3117 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3118 else
3119 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3120
3121 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3122 {
3123 TREEVIEW_ITEM *item;
3124
3125 for (item = infoPtr->root->firstChild; item != NULL;
3126 item = TREEVIEW_GetNextListItem(infoPtr, item))
3127 {
3128 if (item->visibleOrder == visOrder)
3129 break;
3130 }
3131
3132 if (!item) item = parent->firstChild;
3133 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3134 }
3135
3136 TREEVIEW_Invalidate(infoPtr, NULL);
3137 }
3138
3139 return TRUE;
3140 }
3141 return FALSE;
3142 }
3143
3144
3145 /***************************************************************************
3146 * Setup the treeview structure with regards of the sort method
3147 * and sort the children of the TV item specified in lParam
3148 */
3149 static LRESULT
3150 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3151 {
3152 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3153 }
3154
3155
3156 /***************************************************************************
3157 * Sort the children of the TV item specified in lParam.
3158 */
3159 static LRESULT
3160 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3161 {
3162 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3163 }
3164
3165
3166 /* Expansion/Collapse ***************************************************/
3167
3168 static BOOL
3169 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3170 UINT action)
3171 {
3172 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3173 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3174 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3175 0, wineItem);
3176 }
3177
3178 static VOID
3179 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3180 UINT action)
3181 {
3182 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3183 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3184 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3185 0, wineItem);
3186 }
3187
3188
3189 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3190 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3191 static BOOL
3192 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3193 BOOL bRemoveChildren, BOOL bUser)
3194 {
3195 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3196 BOOL bSetSelection, bSetFirstVisible;
3197 RECT scrollRect;
3198 LONG scrollDist = 0;
3199 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3200
3201 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3202
3203 if (!(wineItem->state & TVIS_EXPANDED))
3204 return FALSE;
3205
3206 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3207 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3208
3209 if (wineItem->firstChild == NULL)
3210 return FALSE;
3211
3212 wineItem->state &= ~TVIS_EXPANDED;
3213
3214 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3215 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3216
3217 bSetSelection = (infoPtr->selectedItem != NULL