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gdi32: Reimplement Ellipse in paths to avoid calling imprecise arc helper functions.
[wine.git] / dlls / comctl32 / treeview.c
blobae174138a9783e19ef13aeb9aa1da50f78bbf4f2
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
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
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
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 "vssym32.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66 #include "wine/exception.h"
67
68 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
69
70 /* internal structures */
71 typedef struct tagTREEVIEW_INFO
72 {
73 HWND hwnd;
74 HWND hwndNotify; /* Owner window to send notifications to */
75 DWORD dwStyle;
76 HTREEITEM root;
77 UINT uInternalStatus;
78 INT Timer;
79 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
80 INT cdmode; /* last custom draw setting */
81 UINT uScrollTime; /* max. time for scrolling in milliseconds */
82 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
83
84 UINT uItemHeight; /* item height */
85 BOOL bHeightSet;
86
87 LONG clientWidth; /* width of control window */
88 LONG clientHeight; /* height of control window */
89
90 LONG treeWidth; /* width of visible tree items */
91 LONG treeHeight; /* height of visible tree items */
92
93 UINT uIndent; /* indentation in pixels */
94 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
95 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
96 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
97 HTREEITEM editItem; /* item being edited with builtin edit box */
98
99 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
100 LONG maxVisibleOrder;
101 HTREEITEM dropItem; /* handle to item selected by drag cursor */
102 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
103 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
104 HIMAGELIST dragList; /* Bitmap of dragged item */
105 LONG scrollX;
106 INT wheelRemainder;
107 COLORREF clrBk;
108 COLORREF clrText;
109 COLORREF clrLine;
110 COLORREF clrInsertMark;
111 HFONT hFont;
112 HFONT hDefaultFont;
113 HFONT hBoldFont;
114 HFONT hUnderlineFont;
115 HFONT hBoldUnderlineFont;
116 HCURSOR hcurHand;
117 HWND hwndToolTip;
118
119 HWND hwndEdit;
120 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
121 BOOL bIgnoreEditKillFocus;
122 BOOL bLabelChanged;
123
124 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
125 HIMAGELIST himlNormal;
126 int normalImageHeight;
127 int normalImageWidth;
128 HIMAGELIST himlState;
129 int stateImageHeight;
130 int stateImageWidth;
131 HDPA items;
132
133 DWORD lastKeyPressTimestamp;
134 WPARAM charCode;
135 INT nSearchParamLength;
136 WCHAR szSearchParam[ MAX_PATH ];
137 } TREEVIEW_INFO;
138
139 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
140 {
141 HTREEITEM parent; /* handle to parent or 0 if at root */
142 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
143 HTREEITEM firstChild; /* handle to first child or 0 if no child */
144
145 UINT callbackMask;
146 UINT state;
147 UINT stateMask;
148 LPWSTR pszText;
149 int cchTextMax;
150 int iImage;
151 int iSelectedImage;
152 int iExpandedImage;
153 int cChildren;
154 LPARAM lParam;
155 int iIntegral; /* item height multiplier (1 is normal) */
156 int iLevel; /* indentation level:0=root level */
157 HTREEITEM lastChild;
158 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
159 RECT rect;
160 LONG linesOffset;
161 LONG stateOffset;
162 LONG imageOffset;
163 LONG textOffset;
164 LONG textWidth; /* horizontal text extent for pszText */
165 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
166 corresponding to a top-to-bottom ordering in the tree view.
167 Each item takes up "item.iIntegral" spots in the visible order.
168 0 is the root's first child. */
169 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
170 } TREEVIEW_ITEM;
171
172 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
173 #define KEY_DELAY 450
174
175 /* bitflags for infoPtr->uInternalStatus */
176
177 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
178 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
179 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
180 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
181 #define TV_RDRAG 0x10 /* ditto Rbutton */
182 #define TV_RDRAGGING 0x20
183
184 /* bitflags for infoPtr->timer */
185
186 #define TV_EDIT_TIMER 2
187 #define TV_EDIT_TIMER_SET 2
188
189 #define TEXT_CALLBACK_SIZE 260
190
191 #define TREEVIEW_LEFT_MARGIN 8
192
193 #define MINIMUM_INDENT 19
194
195 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
196
197 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
198 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
199 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
200
201 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
202 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
203 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
204 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
205
206 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
207
208
209 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
210
211
212 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
213
214 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
215 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
216 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
217 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
218 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
219 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
220
221 /* Random Utilities *****************************************************/
222 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
223
224 /* Returns the treeview private data if hwnd is a treeview.
225 * Otherwise returns an undefined value. */
226 static inline TREEVIEW_INFO *
227 TREEVIEW_GetInfoPtr(HWND hwnd)
228 {
229 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
230 }
231
232 /* Don't call this. Nothing wants an item index. */
233 static inline int
234 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
235 {
236 return DPA_GetPtrIndex(infoPtr->items, handle);
237 }
238
239 /* Checks if item has changed and needs to be redrawn */
240 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
241 const TVITEMEXW *tvChange)
242 {
243 /* Number of children has changed */
244 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
245 return TRUE;
246
247 /* Image has changed and it's not a callback */
248 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
249 tiNew->iImage != I_IMAGECALLBACK)
250 return TRUE;
251
252 /* Selected image has changed and it's not a callback */
253 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
254 tiNew->iSelectedImage != I_IMAGECALLBACK)
255 return TRUE;
256
257 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
258 tiNew->iExpandedImage != 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 HFONT
313 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
314 {
315 LOGFONTW font;
316
317 GetObjectW(hfont, sizeof(font), &font);
318 font.lfWeight = FW_BOLD;
319 font.lfUnderline = TRUE;
320 return CreateFontIndirectW(&font);
321 }
322
323 static inline HFONT
324 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
325 {
326 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
327 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
328 if (item->state & TVIS_BOLD)
329 return infoPtr->hBoldFont;
330 return infoPtr->hFont;
331 }
332
333 /* for trace/debugging purposes only */
334 static const char *
335 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
336 {
337 if (item == NULL) return "<null item>";
338 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
339 if (item->pszText == NULL) return "<null>";
340 return debugstr_w(item->pszText);
341 }
342
343 /* An item is not a child of itself. */
344 static BOOL
345 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
346 {
347 do
348 {
349 child = child->parent;
350 if (child == parent) return TRUE;
351 } while (child != NULL);
352
353 return FALSE;
354 }
355
356
357 /* Tree Traversal *******************************************************/
358
359 /***************************************************************************
360 * This method returns the last expanded sibling or child child item
361 * of a tree node
362 */
363 static TREEVIEW_ITEM *
364 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
365 {
366 if (!item) return NULL;
367
368 while (item->lastChild)
369 {
370 if (item->state & TVIS_EXPANDED)
371 item = item->lastChild;
372 else
373 break;
374 }
375
376 if (item == infoPtr->root)
377 return NULL;
378
379 return item;
380 }
381
382 /***************************************************************************
383 * This method returns the previous non-hidden item in the list not
384 * considering the tree hierarchy.
385 */
386 static TREEVIEW_ITEM *
387 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
388 {
389 if (tvItem->prevSibling)
390 {
391 /* This item has a prevSibling, get the last item in the sibling's tree. */
392 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
393
394 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
395 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
396 else
397 return upItem;
398 }
399 else
400 {
401 /* this item does not have a prevSibling, get the parent */
402 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
403 }
404 }
405
406
407 /***************************************************************************
408 * This method returns the next physical item in the treeview not
409 * considering the tree hierarchy.
410 */
411 static TREEVIEW_ITEM *
412 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
413 {
414 /*
415 * If this item has children and is expanded, return the first child
416 */
417 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
418 {
419 return tvItem->firstChild;
420 }
421
422
423 /*
424 * try to get the sibling
425 */
426 if (tvItem->nextSibling)
427 return tvItem->nextSibling;
428
429 /*
430 * Otherwise, get the parent's sibling.
431 */
432 while (tvItem->parent)
433 {
434 tvItem = tvItem->parent;
435
436 if (tvItem->nextSibling)
437 return tvItem->nextSibling;
438 }
439
440 return NULL;
441 }
442
443 /***************************************************************************
444 * This method returns the nth item starting at the given item. It returns
445 * the last item (or first) we we run out of items.
446 *
447 * Will scroll backward if count is <0.
448 * forward if count is >0.
449 */
450 static TREEVIEW_ITEM *
451 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
452 LONG count)
453 {
454 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
455 TREEVIEW_ITEM *previousItem;
456
457 assert(item != NULL);
458
459 if (count > 0)
460 {
461 next_item = TREEVIEW_GetNextListItem;
462 }
463 else if (count < 0)
464 {
465 count = -count;
466 next_item = TREEVIEW_GetPrevListItem;
467 }
468 else
469 return item;
470
471 do
472 {
473 previousItem = item;
474 item = next_item(infoPtr, item);
475
476 } while (--count && item != NULL);
477
478
479 return item ? item : previousItem;
480 }
481
482 /* Notifications ************************************************************/
483
484 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
485 {
486 if (!infoPtr->bNtfUnicode) {
487 switch (code) {
488 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
489 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
490 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
491 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
492 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
493 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
494 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
495 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
496 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
497 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
498 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
499 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
500 }
501 }
502 return code;
503 }
504
505 static inline BOOL
506 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
507 {
508 TRACE("code=%d, hdr=%p\n", code, hdr);
509
510 hdr->hwndFrom = infoPtr->hwnd;
511 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
512 hdr->code = get_notifycode(infoPtr, code);
513
514 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
515 }
516
517 static BOOL
518 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
519 {
520 NMHDR hdr;
521 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(const 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(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 NMTREEVIEWW nmhdr;
562 BOOL ret;
563
564 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
565 code, action, oldItem, newItem);
566
567 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
568 nmhdr.action = action;
569
570 if (oldItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
572
573 if (newItem)
574 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
575
576 nmhdr.ptDrag.x = 0;
577 nmhdr.ptDrag.y = 0;
578
579 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
580 if (!infoPtr->bNtfUnicode)
581 {
582 Free(nmhdr.itemOld.pszText);
583 Free(nmhdr.itemNew.pszText);
584 }
585 return ret;
586 }
587
588 static BOOL
589 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
590 HTREEITEM dragItem, POINT pt)
591 {
592 NMTREEVIEWW nmhdr;
593
594 TRACE("code:%d dragitem:%p\n", code, dragItem);
595
596 nmhdr.action = 0;
597 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
598 nmhdr.itemNew.hItem = dragItem;
599 nmhdr.itemNew.state = dragItem->state;
600 nmhdr.itemNew.lParam = dragItem->lParam;
601
602 nmhdr.ptDrag.x = pt.x;
603 nmhdr.ptDrag.y = pt.y;
604
605 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
606 }
607
608
609 static BOOL
610 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
611 HDC hdc, RECT rc)
612 {
613 NMTVCUSTOMDRAW nmcdhdr;
614 NMCUSTOMDRAW *nmcd;
615
616 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
617
618 nmcd = &nmcdhdr.nmcd;
619 nmcd->dwDrawStage = dwDrawStage;
620 nmcd->hdc = hdc;
621 nmcd->rc = rc;
622 nmcd->dwItemSpec = 0;
623 nmcd->uItemState = 0;
624 nmcd->lItemlParam = 0;
625 nmcdhdr.clrText = infoPtr->clrText;
626 nmcdhdr.clrTextBk = infoPtr->clrBk;
627 nmcdhdr.iLevel = 0;
628
629 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
630 }
631
632 /* FIXME: need to find out when the flags in uItemState need to be set */
633
634 static BOOL
635 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
636 TREEVIEW_ITEM *item, UINT uItemDrawState,
637 NMTVCUSTOMDRAW *nmcdhdr)
638 {
639 NMCUSTOMDRAW *nmcd;
640 DWORD dwDrawStage;
641 DWORD_PTR dwItemSpec;
642 UINT uItemState;
643
644 dwDrawStage = CDDS_ITEM | uItemDrawState;
645 dwItemSpec = (DWORD_PTR)item;
646 uItemState = 0;
647 if (item->state & TVIS_SELECTED)
648 uItemState |= CDIS_SELECTED;
649 if (item == infoPtr->selectedItem)
650 uItemState |= CDIS_FOCUS;
651 if (item == infoPtr->hotItem)
652 uItemState |= CDIS_HOT;
653
654 nmcd = &nmcdhdr->nmcd;
655 nmcd->dwDrawStage = dwDrawStage;
656 nmcd->hdc = hdc;
657 nmcd->rc = item->rect;
658 nmcd->dwItemSpec = dwItemSpec;
659 nmcd->uItemState = uItemState;
660 nmcd->lItemlParam = item->lParam;
661 nmcdhdr->iLevel = item->iLevel;
662
663 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
664 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
665 nmcd->uItemState, nmcd->lItemlParam);
666
667 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
668 }
669
670 static BOOL
671 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
672 {
673 NMTVDISPINFOW tvdi;
674 BOOL ret;
675
676 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
677 &tvdi.item, editItem);
678
679 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
680
681 if (!infoPtr->bNtfUnicode)
682 Free(tvdi.item.pszText);
683
684 return ret;
685 }
686
687 static void
688 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
689 UINT mask)
690 {
691 NMTVDISPINFOEXW callback;
692
693 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
694 mask &= item->callbackMask;
695
696 if (mask == 0) return;
697
698 /* 'state' always contains valid value, as well as 'lParam'.
699 * All other parameters are uninitialized.
700 */
701 callback.item.pszText = item->pszText;
702 callback.item.cchTextMax = item->cchTextMax;
703 callback.item.mask = mask;
704 callback.item.hItem = item;
705 callback.item.state = item->state;
706 callback.item.lParam = item->lParam;
707
708 /* If text is changed we need to recalculate textWidth */
709 if (mask & TVIF_TEXT)
710 item->textWidth = 0;
711
712 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
713 TRACE("resulting code 0x%08x\n", callback.hdr.code);
714
715 /* It may have changed due to a call to SetItem. */
716 mask &= item->callbackMask;
717
718 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
719 {
720 /* Instead of copying text into our buffer user specified his own */
721 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
722 LPWSTR newText;
723 int buflen;
724 int len = MultiByteToWideChar( CP_ACP, 0,
725 (LPSTR)callback.item.pszText, -1,
726 NULL, 0);
727 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
728 newText = ReAlloc(item->pszText, buflen);
729
730 TRACE("returned str %s, len=%d, buflen=%d\n",
731 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
732
733 if (newText)
734 {
735 item->pszText = newText;
736 MultiByteToWideChar( CP_ACP, 0,
737 (LPSTR)callback.item.pszText, -1,
738 item->pszText, buflen/sizeof(WCHAR));
739 item->cchTextMax = buflen/sizeof(WCHAR);
740 }
741 /* If ReAlloc fails we have nothing to do, but keep original text */
742 }
743 else {
744 int len = max(lstrlenW(callback.item.pszText) + 1,
745 TEXT_CALLBACK_SIZE);
746 LPWSTR newText = ReAlloc(item->pszText, len);
747
748 TRACE("returned wstr %s, len=%d\n",
749 debugstr_w(callback.item.pszText), len);
750
751 if (newText)
752 {
753 item->pszText = newText;
754 strcpyW(item->pszText, callback.item.pszText);
755 item->cchTextMax = len;
756 }
757 /* If ReAlloc fails we have nothing to do, but keep original text */
758 }
759 }
760 else if (mask & TVIF_TEXT) {
761 /* User put text into our buffer, that is ok unless A string */
762 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
763 LPWSTR newText;
764 int buflen;
765 int len = MultiByteToWideChar( CP_ACP, 0,
766 (LPSTR)callback.item.pszText, -1,
767 NULL, 0);
768 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
769 newText = Alloc(buflen);
770
771 TRACE("same buffer str %s, len=%d, buflen=%d\n",
772 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
773
774 if (newText)
775 {
776 LPWSTR oldText = item->pszText;
777 item->pszText = newText;
778 MultiByteToWideChar( CP_ACP, 0,
779 (LPSTR)callback.item.pszText, -1,
780 item->pszText, buflen/sizeof(WCHAR));
781 item->cchTextMax = buflen/sizeof(WCHAR);
782 Free(oldText);
783 }
784 }
785 }
786
787 if (mask & TVIF_IMAGE)
788 item->iImage = callback.item.iImage;
789
790 if (mask & TVIF_SELECTEDIMAGE)
791 item->iSelectedImage = callback.item.iSelectedImage;
792
793 if (mask & TVIF_EXPANDEDIMAGE)
794 item->iExpandedImage = callback.item.iExpandedImage;
795
796 if (mask & TVIF_CHILDREN)
797 item->cChildren = callback.item.cChildren;
798
799 if (callback.item.mask & TVIF_STATE)
800 {
801 item->state &= ~callback.item.stateMask;
802 item->state |= (callback.item.state & callback.item.stateMask);
803 }
804
805 /* These members are now permanently set. */
806 if (callback.item.mask & TVIF_DI_SETITEM)
807 item->callbackMask &= ~callback.item.mask;
808 }
809
810 /***************************************************************************
811 * This function uses cChildren field to decide whether the item has
812 * children or not.
813 * Note: if this returns TRUE, the child items may not actually exist,
814 * they could be virtual.
815 *
816 * Just use item->firstChild to check for physical children.
817 */
818 static BOOL
819 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
820 {
821 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
822 /* Protect for a case when callback field is not changed by a host,
823 otherwise negative values trigger normal notifications. */
824 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
825 }
826
827 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
828 {
829 INT format;
830
831 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
832
833 if (nCommand != NF_REQUERY) return 0;
834
835 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
836 TRACE("format=%d\n", format);
837
838 /* Invalid format returned by NF_QUERY defaults to ANSI*/
839 if (format != NFR_ANSI && format != NFR_UNICODE)
840 format = NFR_ANSI;
841
842 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
843
844 return format;
845 }
846
847 /* Item Position ********************************************************/
848
849 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
850 static VOID
851 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
852 {
853 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
854 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
855 > TVS_LINESATROOT);
856
857 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
858 - infoPtr->scrollX;
859 item->stateOffset = item->linesOffset + infoPtr->uIndent;
860 item->imageOffset = item->stateOffset
861 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
862 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
863 }
864
865 static VOID
866 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
867 {
868 HDC hdc;
869 HFONT hOldFont=0;
870 SIZE sz;
871
872 /* DRAW's OM docker creates items like this */
873 if (item->pszText == NULL)
874 {
875 item->textWidth = 0;
876 return;
877 }
878
879 if (hDC != 0)
880 {
881 hdc = hDC;
882 }
883 else
884 {
885 hdc = GetDC(infoPtr->hwnd);
886 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
887 }
888
889 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
890 item->textWidth = sz.cx;
891
892 if (hDC == 0)
893 {
894 SelectObject(hdc, hOldFont);
895 ReleaseDC(0, hdc);
896 }
897 }
898
899 static VOID
900 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
901 {
902 item->rect.top = infoPtr->uItemHeight *
903 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
904
905 item->rect.bottom = item->rect.top
906 + infoPtr->uItemHeight * item->iIntegral - 1;
907
908 item->rect.left = 0;
909 item->rect.right = infoPtr->clientWidth;
910 }
911
912 /* We know that only items after start need their order updated. */
913 static void
914 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
915 {
916 TREEVIEW_ITEM *item;
917 int order;
918
919 if (!start)
920 {
921 start = infoPtr->root->firstChild;
922 order = 0;
923 }
924 else
925 order = start->visibleOrder;
926
927 for (item = start; item != NULL;
928 item = TREEVIEW_GetNextListItem(infoPtr, item))
929 {
930 if (!ISVISIBLE(item) && order > 0)
931 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
932 item->visibleOrder = order;
933 order += item->iIntegral;
934 }
935
936 infoPtr->maxVisibleOrder = order;
937
938 for (item = start; item != NULL;
939 item = TREEVIEW_GetNextListItem(infoPtr, item))
940 {
941 TREEVIEW_ComputeItemRect(infoPtr, item);
942 }
943 }
944
945
946 /* Update metrics of all items in selected subtree.
947 * root must be expanded
948 */
949 static VOID
950 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
951 {
952 TREEVIEW_ITEM *sibling;
953 HDC hdc;
954 HFONT hOldFont;
955
956 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
957 return;
958
959 root->state &= ~TVIS_EXPANDED;
960 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
961 root->state |= TVIS_EXPANDED;
962
963 hdc = GetDC(infoPtr->hwnd);
964 hOldFont = SelectObject(hdc, infoPtr->hFont);
965
966 for (; root != sibling;
967 root = TREEVIEW_GetNextListItem(infoPtr, root))
968 {
969 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
970
971 if (root->callbackMask & TVIF_TEXT)
972 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
973
974 if (root->textWidth == 0)
975 {
976 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
977 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
978 }
979 }
980
981 SelectObject(hdc, hOldFont);
982 ReleaseDC(infoPtr->hwnd, hdc);
983 }
984
985 /* Item Allocation **********************************************************/
986
987 static TREEVIEW_ITEM *
988 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
989 {
990 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
991
992 if (!newItem)
993 return NULL;
994
995 /* I_IMAGENONE would make more sense but this is neither what is
996 * documented (MSDN doesn't specify) nor what Windows actually does
997 * (it sets it to zero)... and I can so imagine an application using
998 * inc/dec to toggle the images. */
999 newItem->iImage = 0;
1000 newItem->iSelectedImage = 0;
1001 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1002 newItem->infoPtr = infoPtr;
1003
1004 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1005 {
1006 Free(newItem);
1007 return NULL;
1008 }
1009
1010 return newItem;
1011 }
1012
1013 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1014 * free item->pszText. */
1015 static void
1016 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1017 {
1018 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1019 if (infoPtr->selectedItem == item)
1020 infoPtr->selectedItem = NULL;
1021 if (infoPtr->hotItem == item)
1022 infoPtr->hotItem = NULL;
1023 if (infoPtr->focusedItem == item)
1024 infoPtr->focusedItem = NULL;
1025 if (infoPtr->firstVisible == item)
1026 infoPtr->firstVisible = NULL;
1027 if (infoPtr->dropItem == item)
1028 infoPtr->dropItem = NULL;
1029 if (infoPtr->insertMarkItem == item)
1030 infoPtr->insertMarkItem = NULL;
1031 Free(item);
1032 }
1033
1034
1035 /* Item Insertion *******************************************************/
1036
1037 /***************************************************************************
1038 * This method inserts newItem before sibling as a child of parent.
1039 * sibling can be NULL, but only if parent has no children.
1040 */
1041 static void
1042 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1043 TREEVIEW_ITEM *parent)
1044 {
1045 assert(parent != NULL);
1046
1047 if (sibling != NULL)
1048 {
1049 assert(sibling->parent == parent);
1050
1051 if (sibling->prevSibling != NULL)
1052 sibling->prevSibling->nextSibling = newItem;
1053
1054 newItem->prevSibling = sibling->prevSibling;
1055 sibling->prevSibling = newItem;
1056 }
1057 else
1058 newItem->prevSibling = NULL;
1059
1060 newItem->nextSibling = sibling;
1061
1062 if (parent->firstChild == sibling)
1063 parent->firstChild = newItem;
1064
1065 if (parent->lastChild == NULL)
1066 parent->lastChild = newItem;
1067 }
1068
1069 /***************************************************************************
1070 * This method inserts newItem after sibling as a child of parent.
1071 * sibling can be NULL, but only if parent has no children.
1072 */
1073 static void
1074 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1075 TREEVIEW_ITEM *parent)
1076 {
1077 assert(parent != NULL);
1078
1079 if (sibling != NULL)
1080 {
1081 assert(sibling->parent == parent);
1082
1083 if (sibling->nextSibling != NULL)
1084 sibling->nextSibling->prevSibling = newItem;
1085
1086 newItem->nextSibling = sibling->nextSibling;
1087 sibling->nextSibling = newItem;
1088 }
1089 else
1090 newItem->nextSibling = NULL;
1091
1092 newItem->prevSibling = sibling;
1093
1094 if (parent->lastChild == sibling)
1095 parent->lastChild = newItem;
1096
1097 if (parent->firstChild == NULL)
1098 parent->firstChild = newItem;
1099 }
1100
1101 static BOOL
1102 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1103 const TVITEMEXW *tvItem, BOOL isW)
1104 {
1105 UINT callbackClear = 0;
1106 UINT callbackSet = 0;
1107
1108 TRACE("item %p\n", item);
1109 /* Do this first in case it fails. */
1110 if (tvItem->mask & TVIF_TEXT)
1111 {
1112 item->textWidth = 0; /* force width recalculation */
1113 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1114 {
1115 int len;
1116 LPWSTR newText;
1117 if (isW)
1118 len = lstrlenW(tvItem->pszText) + 1;
1119 else
1120 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1121
1122 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1123
1124 if (newText == NULL) return FALSE;
1125
1126 callbackClear |= TVIF_TEXT;
1127
1128 item->pszText = newText;
1129 item->cchTextMax = len;
1130 if (isW)
1131 lstrcpynW(item->pszText, tvItem->pszText, len);
1132 else
1133 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1134 item->pszText, len);
1135
1136 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1137 }
1138 else
1139 {
1140 callbackSet |= TVIF_TEXT;
1141
1142 item->pszText = ReAlloc(item->pszText,
1143 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1144 item->cchTextMax = TEXT_CALLBACK_SIZE;
1145 TRACE("setting callback, item %p\n", item);
1146 }
1147 }
1148
1149 if (tvItem->mask & TVIF_CHILDREN)
1150 {
1151 item->cChildren = tvItem->cChildren;
1152
1153 if (item->cChildren == I_CHILDRENCALLBACK)
1154 callbackSet |= TVIF_CHILDREN;
1155 else
1156 callbackClear |= TVIF_CHILDREN;
1157 }
1158
1159 if (tvItem->mask & TVIF_IMAGE)
1160 {
1161 item->iImage = tvItem->iImage;
1162
1163 if (item->iImage == I_IMAGECALLBACK)
1164 callbackSet |= TVIF_IMAGE;
1165 else
1166 callbackClear |= TVIF_IMAGE;
1167 }
1168
1169 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1170 {
1171 item->iSelectedImage = tvItem->iSelectedImage;
1172
1173 if (item->iSelectedImage == I_IMAGECALLBACK)
1174 callbackSet |= TVIF_SELECTEDIMAGE;
1175 else
1176 callbackClear |= TVIF_SELECTEDIMAGE;
1177 }
1178
1179 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1180 {
1181 item->iExpandedImage = tvItem->iExpandedImage;
1182
1183 if (item->iExpandedImage == I_IMAGECALLBACK)
1184 callbackSet |= TVIF_EXPANDEDIMAGE;
1185 else
1186 callbackClear |= TVIF_EXPANDEDIMAGE;
1187 }
1188
1189 if (tvItem->mask & TVIF_PARAM)
1190 item->lParam = tvItem->lParam;
1191
1192 /* If the application sets TVIF_INTEGRAL without
1193 * supplying a TVITEMEX structure, it's toast. */
1194 if (tvItem->mask & TVIF_INTEGRAL)
1195 item->iIntegral = tvItem->iIntegral;
1196
1197 if (tvItem->mask & TVIF_STATE)
1198 {
1199 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1200 tvItem->stateMask);
1201 item->state &= ~tvItem->stateMask;
1202 item->state |= (tvItem->state & tvItem->stateMask);
1203 }
1204
1205 if (tvItem->mask & TVIF_STATEEX)
1206 {
1207 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1208 }
1209
1210 item->callbackMask |= callbackSet;
1211 item->callbackMask &= ~callbackClear;
1212
1213 return TRUE;
1214 }
1215
1216 /* Note that the new item is pre-zeroed. */
1217 static LRESULT
1218 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1219 {
1220 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1221 HTREEITEM insertAfter;
1222 TREEVIEW_ITEM *newItem, *parentItem;
1223 BOOL bTextUpdated = FALSE;
1224
1225 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1226 {
1227 parentItem = infoPtr->root;
1228 }
1229 else
1230 {
1231 parentItem = ptdi->hParent;
1232
1233 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1234 {
1235 WARN("invalid parent %p\n", parentItem);
1236 return 0;
1237 }
1238 }
1239
1240 insertAfter = ptdi->hInsertAfter;
1241
1242 /* Validate this now for convenience. */
1243 switch ((DWORD_PTR)insertAfter)
1244 {
1245 case (DWORD_PTR)TVI_FIRST:
1246 case (DWORD_PTR)TVI_LAST:
1247 case (DWORD_PTR)TVI_SORT:
1248 break;
1249
1250 default:
1251 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1252 insertAfter->parent != parentItem)
1253 {
1254 WARN("invalid insert after %p\n", insertAfter);
1255 insertAfter = TVI_LAST;
1256 }
1257 }
1258
1259 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1260 (tvItem->mask & TVIF_TEXT)
1261 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1262 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1263 : "<no label>");
1264
1265 newItem = TREEVIEW_AllocateItem(infoPtr);
1266 if (newItem == NULL)
1267 return 0;
1268
1269 newItem->parent = parentItem;
1270 newItem->iIntegral = 1;
1271 newItem->visibleOrder = -1;
1272
1273 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1274 return 0;
1275
1276 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1277
1278 infoPtr->uNumItems++;
1279
1280 switch ((DWORD_PTR)insertAfter)
1281 {
1282 case (DWORD_PTR)TVI_FIRST:
1283 {
1284 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1285 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1286 if (infoPtr->firstVisible == originalFirst)
1287 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1288 }
1289 break;
1290
1291 case (DWORD_PTR)TVI_LAST:
1292 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1293 break;
1294
1295 /* hInsertAfter names a specific item we want to insert after */
1296 default:
1297 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1298 break;
1299
1300 case (DWORD_PTR)TVI_SORT:
1301 {
1302 TREEVIEW_ITEM *aChild;
1303 TREEVIEW_ITEM *previousChild = NULL;
1304 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1305 BOOL bItemInserted = FALSE;
1306
1307 aChild = parentItem->firstChild;
1308
1309 bTextUpdated = TRUE;
1310 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1311
1312 /* Iterate the parent children to see where we fit in */
1313 while (aChild != NULL)
1314 {
1315 INT comp;
1316
1317 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1318 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1319
1320 if (comp < 0) /* we are smaller than the current one */
1321 {
1322 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1323 if (infoPtr->firstVisible == originalFirst &&
1324 aChild == originalFirst)
1325 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1326 bItemInserted = TRUE;
1327 break;
1328 }
1329 else if (comp > 0) /* we are bigger than the current one */
1330 {
1331 previousChild = aChild;
1332
1333 /* This will help us to exit if there is no more sibling */
1334 aChild = (aChild->nextSibling == 0)
1335 ? NULL
1336 : aChild->nextSibling;
1337
1338 /* Look at the next item */
1339 continue;
1340 }
1341 else if (comp == 0)
1342 {
1343 /*
1344 * An item with this name is already existing, therefore,
1345 * we add after the one we found
1346 */
1347 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1348 bItemInserted = TRUE;
1349 break;
1350 }
1351 }
1352
1353 /*
1354 * we reach the end of the child list and the item has not
1355 * yet been inserted, therefore, insert it after the last child.
1356 */
1357 if ((!bItemInserted) && (aChild == NULL))
1358 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1359
1360 break;
1361 }
1362 }
1363
1364
1365 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1366 newItem->parent, tvItem->mask);
1367
1368 newItem->iLevel = newItem->parent->iLevel + 1;
1369
1370 if (newItem->parent->cChildren == 0)
1371 newItem->parent->cChildren = 1;
1372
1373 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1374 {
1375 if (STATEIMAGEINDEX(newItem->state) == 0)
1376 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1377 }
1378
1379 if (infoPtr->firstVisible == NULL)
1380 infoPtr->firstVisible = newItem;
1381
1382 TREEVIEW_VerifyTree(infoPtr);
1383
1384 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1385
1386 if (parentItem == infoPtr->root ||
1387 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1388 {
1389 TREEVIEW_ITEM *item;
1390 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1391
1392 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1393 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1394
1395 if (!bTextUpdated)
1396 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1397
1398 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1399 TREEVIEW_UpdateScrollBars(infoPtr);
1400 /*
1401 * if the item was inserted in a visible part of the tree,
1402 * invalidate it, as well as those after it
1403 */
1404 for (item = newItem;
1405 item != NULL;
1406 item = TREEVIEW_GetNextListItem(infoPtr, item))
1407 TREEVIEW_Invalidate(infoPtr, item);
1408 }
1409 else
1410 {
1411 /* refresh treeview if newItem is the first item inserted under parentItem */
1412 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1413 {
1414 /* parent got '+' - update it */
1415 TREEVIEW_Invalidate(infoPtr, parentItem);
1416 }
1417 }
1418
1419 return (LRESULT)newItem;
1420 }
1421
1422 /* Item Deletion ************************************************************/
1423 static void
1424 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1425
1426 static void
1427 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1428 {
1429 TREEVIEW_ITEM *kill = parentItem->firstChild;
1430
1431 while (kill != NULL)
1432 {
1433 TREEVIEW_ITEM *next = kill->nextSibling;
1434
1435 TREEVIEW_RemoveItem(infoPtr, kill);
1436
1437 kill = next;
1438 }
1439
1440 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1441 assert(parentItem->firstChild == NULL);
1442 assert(parentItem->lastChild == NULL);
1443 }
1444
1445 static void
1446 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1447 {
1448 TREEVIEW_ITEM *parentItem;
1449
1450 assert(item != NULL);
1451 assert(item->parent != NULL); /* i.e. it must not be the root */
1452
1453 parentItem = item->parent;
1454
1455 if (parentItem->firstChild == item)
1456 parentItem->firstChild = item->nextSibling;
1457
1458 if (parentItem->lastChild == item)
1459 parentItem->lastChild = item->prevSibling;
1460
1461 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1462 && parentItem->cChildren > 0)
1463 parentItem->cChildren = 0;
1464
1465 if (item->prevSibling)
1466 item->prevSibling->nextSibling = item->nextSibling;
1467
1468 if (item->nextSibling)
1469 item->nextSibling->prevSibling = item->prevSibling;
1470 }
1471
1472 static void
1473 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1474 {
1475 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1476
1477 if (item->firstChild)
1478 TREEVIEW_RemoveAllChildren(infoPtr, item);
1479
1480 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1481 TVIF_HANDLE | TVIF_PARAM, item, 0);
1482
1483 TREEVIEW_UnlinkItem(item);
1484
1485 infoPtr->uNumItems--;
1486
1487 if (item->pszText != LPSTR_TEXTCALLBACKW)
1488 Free(item->pszText);
1489
1490 TREEVIEW_FreeItem(infoPtr, item);
1491 }
1492
1493
1494 /* Empty out the tree. */
1495 static void
1496 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1497 {
1498 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1499
1500 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1501 }
1502
1503 static LRESULT
1504 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1505 {
1506 TREEVIEW_ITEM *newSelection = NULL;
1507 TREEVIEW_ITEM *newFirstVisible = NULL;
1508 TREEVIEW_ITEM *parent, *prev = NULL;
1509 BOOL visible = FALSE;
1510
1511 if (item == TVI_ROOT || !item)
1512 {
1513 TRACE("TVI_ROOT\n");
1514 parent = infoPtr->root;
1515 newSelection = NULL;
1516 visible = TRUE;
1517 TREEVIEW_RemoveTree(infoPtr);
1518 }
1519 else
1520 {
1521 if (!TREEVIEW_ValidItem(infoPtr, item))
1522 return FALSE;
1523
1524 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1525 parent = item->parent;
1526
1527 if (ISVISIBLE(item))
1528 {
1529 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1530 visible = TRUE;
1531 }
1532
1533 if (infoPtr->selectedItem != NULL
1534 && (item == infoPtr->selectedItem
1535 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1536 {
1537 if (item->nextSibling)
1538 newSelection = item->nextSibling;
1539 else if (item->parent != infoPtr->root)
1540 newSelection = item->parent;
1541 else
1542 newSelection = item->prevSibling;
1543 TRACE("newSelection = %p\n", newSelection);
1544 }
1545
1546 if (infoPtr->firstVisible == item)
1547 {
1548 visible = TRUE;
1549 if (item->nextSibling)
1550 newFirstVisible = item->nextSibling;
1551 else if (item->prevSibling)
1552 newFirstVisible = item->prevSibling;
1553 else if (item->parent != infoPtr->root)
1554 newFirstVisible = item->parent;
1555 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1556 }
1557 else
1558 newFirstVisible = infoPtr->firstVisible;
1559
1560 TREEVIEW_RemoveItem(infoPtr, item);
1561 }
1562
1563 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1564 if (!infoPtr->selectedItem && newSelection)
1565 {
1566 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1567 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1568 }
1569
1570 /* Validate insertMark dropItem.
1571 * hotItem ??? - used for comparison only.
1572 */
1573 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1574 infoPtr->insertMarkItem = 0;
1575
1576 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1577 infoPtr->dropItem = 0;
1578
1579 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1580 newFirstVisible = infoPtr->root->firstChild;
1581
1582 TREEVIEW_VerifyTree(infoPtr);
1583
1584 if (visible)
1585 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1586
1587 if (!infoPtr->bRedraw) return TRUE;
1588
1589 if (visible)
1590 {
1591 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1592 TREEVIEW_UpdateScrollBars(infoPtr);
1593 TREEVIEW_Invalidate(infoPtr, NULL);
1594 }
1595 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1596 {
1597 /* parent lost '+/-' - update it */
1598 TREEVIEW_Invalidate(infoPtr, parent);
1599 }
1600
1601 return TRUE;
1602 }
1603
1604
1605 /* Get/Set Messages *********************************************************/
1606 static LRESULT
1607 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1608 {
1609 infoPtr->bRedraw = wParam != 0;
1610
1611 if (infoPtr->bRedraw)
1612 {
1613 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1614 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1615 TREEVIEW_UpdateScrollBars(infoPtr);
1616 TREEVIEW_Invalidate(infoPtr, NULL);
1617 }
1618 return 0;
1619 }
1620
1621 static LRESULT
1622 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1623 {
1624 TRACE("\n");
1625 return infoPtr->uIndent;
1626 }
1627
1628 static LRESULT
1629 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1630 {
1631 TRACE("\n");
1632
1633 if (newIndent < MINIMUM_INDENT)
1634 newIndent = MINIMUM_INDENT;
1635
1636 if (infoPtr->uIndent != newIndent)
1637 {
1638 infoPtr->uIndent = newIndent;
1639 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1640 TREEVIEW_UpdateScrollBars(infoPtr);
1641 TREEVIEW_Invalidate(infoPtr, NULL);
1642 }
1643
1644 return 0;
1645 }
1646
1647
1648 static LRESULT
1649 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1650 {
1651 TRACE("\n");
1652 return (LRESULT)infoPtr->hwndToolTip;
1653 }
1654
1655 static LRESULT
1656 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1657 {
1658 HWND prevToolTip;
1659
1660 TRACE("\n");
1661 prevToolTip = infoPtr->hwndToolTip;
1662 infoPtr->hwndToolTip = hwndTT;
1663
1664 return (LRESULT)prevToolTip;
1665 }
1666
1667 static LRESULT
1668 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1669 {
1670 BOOL rc = infoPtr->bNtfUnicode;
1671 infoPtr->bNtfUnicode = fUnicode;
1672 return rc;
1673 }
1674
1675 static LRESULT
1676 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1677 {
1678 return infoPtr->bNtfUnicode;
1679 }
1680
1681 static LRESULT
1682 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1683 {
1684 return infoPtr->uScrollTime;
1685 }
1686
1687 static LRESULT
1688 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1689 {
1690 UINT uOldScrollTime = infoPtr->uScrollTime;
1691
1692 infoPtr->uScrollTime = min(uScrollTime, 100);
1693
1694 return uOldScrollTime;
1695 }
1696
1697
1698 static LRESULT
1699 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1700 {
1701 TRACE("\n");
1702
1703 switch (wParam)
1704 {
1705 case TVSIL_NORMAL:
1706 return (LRESULT)infoPtr->himlNormal;
1707
1708 case TVSIL_STATE:
1709 return (LRESULT)infoPtr->himlState;
1710
1711 default:
1712 return 0;
1713 }
1714 }
1715
1716 #define TVHEIGHT_MIN 16
1717 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1718
1719 /* Compute the natural height for items. */
1720 static UINT
1721 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1722 {
1723 TEXTMETRICW tm;
1724 HDC hdc = GetDC(0);
1725 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1726 UINT height;
1727
1728 /* Height is the maximum of:
1729 * 16 (a hack because our fonts are tiny), and
1730 * The text height + border & margin, and
1731 * The size of the normal image list
1732 */
1733 GetTextMetricsW(hdc, &tm);
1734 SelectObject(hdc, hOldFont);
1735 ReleaseDC(0, hdc);
1736
1737 height = TVHEIGHT_MIN;
1738 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1739 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1740 if (height < infoPtr->normalImageHeight)
1741 height = infoPtr->normalImageHeight;
1742
1743 /* Round down, unless we support odd ("non even") heights. */
1744 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1745 height &= ~1;
1746
1747 return height;
1748 }
1749
1750 static LRESULT
1751 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1752 {
1753 HIMAGELIST himlOld = 0;
1754 int oldWidth = infoPtr->normalImageWidth;
1755 int oldHeight = infoPtr->normalImageHeight;
1756
1757 TRACE("%u,%p\n", type, himlNew);
1758
1759 switch (type)
1760 {
1761 case TVSIL_NORMAL:
1762 himlOld = infoPtr->himlNormal;
1763 infoPtr->himlNormal = himlNew;
1764
1765 if (himlNew)
1766 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1767 &infoPtr->normalImageHeight);
1768 else
1769 {
1770 infoPtr->normalImageWidth = 0;
1771 infoPtr->normalImageHeight = 0;
1772 }
1773
1774 break;
1775
1776 case TVSIL_STATE:
1777 himlOld = infoPtr->himlState;
1778 infoPtr->himlState = himlNew;
1779
1780 if (himlNew)
1781 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1782 &infoPtr->stateImageHeight);
1783 else
1784 {
1785 infoPtr->stateImageWidth = 0;
1786 infoPtr->stateImageHeight = 0;
1787 }
1788
1789 break;
1790
1791 default:
1792 ERR("unknown imagelist type %u\n", type);
1793 }
1794
1795 if (oldWidth != infoPtr->normalImageWidth ||
1796 oldHeight != infoPtr->normalImageHeight)
1797 {
1798 BOOL bRecalcVisible = FALSE;
1799
1800 if (oldHeight != infoPtr->normalImageHeight &&
1801 !infoPtr->bHeightSet)
1802 {
1803 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1804 bRecalcVisible = TRUE;
1805 }
1806
1807 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1808 infoPtr->normalImageWidth != infoPtr->uIndent)
1809 {
1810 infoPtr->uIndent = infoPtr->normalImageWidth;
1811 bRecalcVisible = TRUE;
1812 }
1813
1814 if (bRecalcVisible)
1815 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1816
1817 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1818 TREEVIEW_UpdateScrollBars(infoPtr);
1819 }
1820
1821 TREEVIEW_Invalidate(infoPtr, NULL);
1822
1823 return (LRESULT)himlOld;
1824 }
1825
1826 static LRESULT
1827 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1828 {
1829 INT prevHeight = infoPtr->uItemHeight;
1830
1831 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1832 if (newHeight == -1)
1833 {
1834 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1835 infoPtr->bHeightSet = FALSE;
1836 }
1837 else
1838 {
1839 if (newHeight == 0) newHeight = 1;
1840 infoPtr->uItemHeight = newHeight;
1841 infoPtr->bHeightSet = TRUE;
1842 }
1843
1844 /* Round down, unless we support odd ("non even") heights. */
1845 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1846 {
1847 infoPtr->uItemHeight &= ~1;
1848 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1849 }
1850
1851 if (infoPtr->uItemHeight != prevHeight)
1852 {
1853 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1854 TREEVIEW_UpdateScrollBars(infoPtr);
1855 TREEVIEW_Invalidate(infoPtr, NULL);
1856 }
1857
1858 return prevHeight;
1859 }
1860
1861 static LRESULT
1862 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1863 {
1864 TRACE("\n");
1865 return infoPtr->uItemHeight;
1866 }
1867
1868
1869 static LRESULT
1870 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1871 {
1872 TRACE("%p\n", infoPtr->hFont);
1873 return (LRESULT)infoPtr->hFont;
1874 }
1875
1876
1877 static INT CALLBACK
1878 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1879 {
1880 (void)unused;
1881
1882 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1883
1884 return 1;
1885 }
1886
1887 static LRESULT
1888 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1889 {
1890 UINT uHeight = infoPtr->uItemHeight;
1891
1892 TRACE("%p %i\n", hFont, bRedraw);
1893
1894 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1895
1896 DeleteObject(infoPtr->hBoldFont);
1897 DeleteObject(infoPtr->hUnderlineFont);
1898 DeleteObject(infoPtr->hBoldUnderlineFont);
1899 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1900 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1901 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1902
1903 if (!infoPtr->bHeightSet)
1904 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1905
1906 if (uHeight != infoPtr->uItemHeight)
1907 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1908
1909 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1910
1911 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1912 TREEVIEW_UpdateScrollBars(infoPtr);
1913
1914 if (bRedraw)
1915 TREEVIEW_Invalidate(infoPtr, NULL);
1916
1917 return 0;
1918 }
1919
1920
1921 static LRESULT
1922 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1923 {
1924 TRACE("\n");
1925 return (LRESULT)infoPtr->clrLine;
1926 }
1927
1928 static LRESULT
1929 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1930 {
1931 COLORREF prevColor = infoPtr->clrLine;
1932
1933 TRACE("\n");
1934 infoPtr->clrLine = color;
1935 return (LRESULT)prevColor;
1936 }
1937
1938
1939 static LRESULT
1940 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1941 {
1942 TRACE("\n");
1943 return (LRESULT)infoPtr->clrText;
1944 }
1945
1946 static LRESULT
1947 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1948 {
1949 COLORREF prevColor = infoPtr->clrText;
1950
1951 TRACE("\n");
1952 infoPtr->clrText = color;
1953
1954 if (infoPtr->clrText != prevColor)
1955 TREEVIEW_Invalidate(infoPtr, NULL);
1956
1957 return (LRESULT)prevColor;
1958 }
1959
1960
1961 static LRESULT
1962 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1963 {
1964 TRACE("\n");
1965 return (LRESULT)infoPtr->clrBk;
1966 }
1967
1968 static LRESULT
1969 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1970 {
1971 COLORREF prevColor = infoPtr->clrBk;
1972
1973 TRACE("\n");
1974 infoPtr->clrBk = newColor;
1975
1976 if (newColor != prevColor)
1977 TREEVIEW_Invalidate(infoPtr, NULL);
1978
1979 return (LRESULT)prevColor;
1980 }
1981
1982
1983 static LRESULT
1984 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1985 {
1986 TRACE("\n");
1987 return (LRESULT)infoPtr->clrInsertMark;
1988 }
1989
1990 static LRESULT
1991 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1992 {
1993 COLORREF prevColor = infoPtr->clrInsertMark;
1994
1995 TRACE("0x%08x\n", color);
1996 infoPtr->clrInsertMark = color;
1997
1998 return (LRESULT)prevColor;
1999 }
2000
2001
2002 static LRESULT
2003 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2004 {
2005 TRACE("%d %p\n", wParam, item);
2006
2007 if (!TREEVIEW_ValidItem(infoPtr, item))
2008 return 0;
2009
2010 infoPtr->insertBeforeorAfter = wParam;
2011 infoPtr->insertMarkItem = item;
2012
2013 TREEVIEW_Invalidate(infoPtr, NULL);
2014
2015 return 1;
2016 }
2017
2018
2019 /************************************************************************
2020 * Some serious braindamage here. lParam is a pointer to both the
2021 * input HTREEITEM and the output RECT.
2022 */
2023 static LRESULT
2024 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2025 {
2026 TREEVIEW_ITEM *item;
2027 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2028
2029 TRACE("\n");
2030
2031 if (pItem == NULL)
2032 return FALSE;
2033
2034 item = *pItem;
2035 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2036 return FALSE;
2037
2038 /*
2039 * If wParam is TRUE return the text size otherwise return
2040 * the whole item size
2041 */
2042 if (fTextRect)
2043 {
2044 /* Windows does not send TVN_GETDISPINFO here. */
2045
2046 lpRect->top = item->rect.top;
2047 lpRect->bottom = item->rect.bottom;
2048
2049 lpRect->left = item->textOffset;
2050 if (!item->textWidth)
2051 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2052
2053 lpRect->right = item->textOffset + item->textWidth + 4;
2054 }
2055 else
2056 {
2057 *lpRect = item->rect;
2058 }
2059
2060 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2061
2062 return TRUE;
2063 }
2064
2065 static inline LRESULT
2066 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2067 {
2068 /* Surprise! This does not take integral height into account. */
2069 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2070 return infoPtr->clientHeight / infoPtr->uItemHeight;
2071 }
2072
2073
2074 static LRESULT
2075 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2076 {
2077 TREEVIEW_ITEM *item = tvItem->hItem;
2078
2079 if (!TREEVIEW_ValidItem(infoPtr, item))
2080 {
2081 BOOL valid_item = FALSE;
2082 if (!item) return FALSE;
2083
2084 __TRY
2085 {
2086 infoPtr = item->infoPtr;
2087 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2088 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2089 }
2090 __EXCEPT_PAGE_FAULT
2091 {
2092 }
2093 __ENDTRY
2094 if (!valid_item) return FALSE;
2095 }
2096
2097 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2098
2099 if (tvItem->mask & TVIF_CHILDREN)
2100 {
2101 if (item->cChildren==I_CHILDRENCALLBACK)
2102 FIXME("I_CHILDRENCALLBACK not supported\n");
2103 tvItem->cChildren = item->cChildren;
2104 }
2105
2106 if (tvItem->mask & TVIF_HANDLE)
2107 tvItem->hItem = item;
2108
2109 if (tvItem->mask & TVIF_IMAGE)
2110 tvItem->iImage = item->iImage;
2111
2112 if (tvItem->mask & TVIF_INTEGRAL)
2113 tvItem->iIntegral = item->iIntegral;
2114
2115 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2116 tvItem->lParam = item->lParam;
2117
2118 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2119 tvItem->iSelectedImage = item->iSelectedImage;
2120
2121 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2122 tvItem->iExpandedImage = item->iExpandedImage;
2123
2124 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2125 tvItem->state = item->state;
2126
2127 if (tvItem->mask & TVIF_TEXT)
2128 {
2129 if (item->pszText == NULL)
2130 {
2131 if (tvItem->cchTextMax > 0)
2132 tvItem->pszText[0] = '\0';
2133 }
2134 else if (isW)
2135 {
2136 if (item->pszText == LPSTR_TEXTCALLBACKW)
2137 {
2138 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2139 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2140 }
2141 else
2142 {
2143 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2144 }
2145 }
2146 else
2147 {
2148 if (item->pszText == LPSTR_TEXTCALLBACKW)
2149 {
2150 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2151 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2152 }
2153 else
2154 {
2155 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2156 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2157 }
2158 }
2159 }
2160
2161 if (tvItem->mask & TVIF_STATEEX)
2162 {
2163 FIXME("Extended item state not supported, returning 0.\n");
2164 tvItem->uStateEx = 0;
2165 }
2166
2167 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2168 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2169
2170 return TRUE;
2171 }
2172
2173 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2174 * which is wrong. */
2175 static LRESULT
2176 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2177 {
2178 TREEVIEW_ITEM *item;
2179 TREEVIEW_ITEM originalItem;
2180
2181 item = tvItem->hItem;
2182
2183 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2184 tvItem->mask);
2185
2186 if (!TREEVIEW_ValidItem(infoPtr, item))
2187 return FALSE;
2188
2189 /* store the original item values */
2190 originalItem = *item;
2191
2192 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2193 return FALSE;
2194
2195 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2196 if ((tvItem->mask & TVIF_TEXT
2197 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2198 && ISVISIBLE(item))
2199 {
2200 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2201 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2202 }
2203
2204 if (tvItem->mask != 0 && ISVISIBLE(item))
2205 {
2206 /* The refresh updates everything, but we can't wait until then. */
2207 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2208
2209 /* if any of the item's values changed and it's not a callback, redraw the item */
2210 if (item_changed(&originalItem, item, tvItem))
2211 {
2212 if (tvItem->mask & TVIF_INTEGRAL)
2213 {
2214 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2215 TREEVIEW_UpdateScrollBars(infoPtr);
2216
2217 TREEVIEW_Invalidate(infoPtr, NULL);
2218 }
2219 else
2220 {
2221 TREEVIEW_UpdateScrollBars(infoPtr);
2222 TREEVIEW_Invalidate(infoPtr, item);
2223 }
2224 }
2225 }
2226
2227 return TRUE;
2228 }
2229
2230 static LRESULT
2231 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2232 {
2233 TRACE("\n");
2234
2235 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2236 return 0;
2237
2238 return (item->state & mask);
2239 }
2240
2241 static LRESULT
2242 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2243 {
2244 TREEVIEW_ITEM *retval;
2245
2246 retval = 0;
2247
2248 /* handle all the global data here */
2249 switch (which)
2250 {
2251 case TVGN_CHILD: /* Special case: child of 0 is root */
2252 if (item)
2253 break;
2254 /* fall through */
2255 case TVGN_ROOT:
2256 retval = infoPtr->root->firstChild;
2257 break;
2258
2259 case TVGN_CARET:
2260 retval = infoPtr->selectedItem;
2261 break;
2262
2263 case TVGN_FIRSTVISIBLE:
2264 retval = infoPtr->firstVisible;
2265 break;
2266
2267 case TVGN_DROPHILITE:
2268 retval = infoPtr->dropItem;
2269 break;
2270
2271 case TVGN_LASTVISIBLE:
2272 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2273 break;
2274 }
2275
2276 if (retval)
2277 {
2278 TRACE("flags:0x%x, returns %p\n", which, retval);
2279 return (LRESULT)retval;
2280 }
2281
2282 if (item == TVI_ROOT) item = infoPtr->root;
2283
2284 if (!TREEVIEW_ValidItem(infoPtr, item))
2285 return FALSE;
2286
2287 switch (which)
2288 {
2289 case TVGN_NEXT:
2290 retval = item->nextSibling;
2291 break;
2292 case TVGN_PREVIOUS:
2293 retval = item->prevSibling;
2294 break;
2295 case TVGN_PARENT:
2296 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2297 break;
2298 case TVGN_CHILD:
2299 retval = item->firstChild;
2300 break;
2301 case TVGN_NEXTVISIBLE:
2302 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2303 break;
2304 case TVGN_PREVIOUSVISIBLE:
2305 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2306 break;
2307 default:
2308 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2309 break;
2310 }
2311
2312 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2313 return (LRESULT)retval;
2314 }
2315
2316
2317 static LRESULT
2318 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2319 {
2320 TRACE(" %d\n", infoPtr->uNumItems);
2321 return (LRESULT)infoPtr->uNumItems;
2322 }
2323
2324 static VOID
2325 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2326 {
2327 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2328 {
2329 static const unsigned int state_table[] = { 0, 2, 1 };
2330
2331 unsigned int state;
2332
2333 state = STATEIMAGEINDEX(item->state);
2334 TRACE("state: 0x%x\n", state);
2335 item->state &= ~TVIS_STATEIMAGEMASK;
2336
2337 if (state < 3)
2338 state = state_table[state];
2339
2340 item->state |= INDEXTOSTATEIMAGEMASK(state);
2341
2342 TRACE("state: 0x%x\n", state);
2343 TREEVIEW_Invalidate(infoPtr, item);
2344 }
2345 }
2346
2347
2348 /* Painting *************************************************************/
2349
2350 /* Draw the lines and expand button for an item. Also draws one section
2351 * of the line from item's parent to item's parent's next sibling. */
2352 static void
2353 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2354 {
2355 LONG centerx, centery;
2356 BOOL lar = ((infoPtr->dwStyle
2357 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2358 > TVS_LINESATROOT);
2359 HBRUSH hbr, hbrOld;
2360 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2361
2362 if (!lar && item->iLevel == 0)
2363 return;
2364
2365 hbr = CreateSolidBrush(clrBk);
2366 hbrOld = SelectObject(hdc, hbr);
2367
2368 centerx = (item->linesOffset + item->stateOffset) / 2;
2369 centery = (item->rect.top + item->rect.bottom) / 2;
2370
2371 if (infoPtr->dwStyle & TVS_HASLINES)
2372 {
2373 HPEN hOldPen, hNewPen;
2374 HTREEITEM parent;
2375 LOGBRUSH lb;
2376
2377 /* Get a dotted grey pen */
2378 lb.lbStyle = BS_SOLID;
2379 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2380 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2381 hOldPen = SelectObject(hdc, hNewPen);
2382
2383 /* Make sure the center is on a dot (using +2 instead
2384 * of +1 gives us pixel-by-pixel compat with native) */
2385 centery = (centery + 2) & ~1;
2386
2387 MoveToEx(hdc, item->stateOffset, centery, NULL);
2388 LineTo(hdc, centerx - 1, centery);
2389
2390 if (item->prevSibling || item->parent != infoPtr->root)
2391 {
2392 MoveToEx(hdc, centerx, item->rect.top, NULL);
2393 LineTo(hdc, centerx, centery);
2394 }
2395
2396 if (item->nextSibling)
2397 {
2398 MoveToEx(hdc, centerx, centery, NULL);
2399 LineTo(hdc, centerx, item->rect.bottom + 1);
2400 }
2401
2402 /* Draw the line from our parent to its next sibling. */
2403 parent = item->parent;
2404 while (parent != infoPtr->root)
2405 {
2406 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2407
2408 if (parent->nextSibling
2409 /* skip top-levels unless TVS_LINESATROOT */
2410 && parent->stateOffset > parent->linesOffset)
2411 {
2412 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2413 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2414 }
2415
2416 parent = parent->parent;
2417 }
2418
2419 SelectObject(hdc, hOldPen);
2420 DeleteObject(hNewPen);
2421 }
2422
2423 /*
2424 * Display the (+/-) signs
2425 */
2426
2427 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2428 {
2429 if (item->cChildren)
2430 {
2431 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2432 if (theme)
2433 {
2434 RECT glyphRect = item->rect;
2435 glyphRect.left = item->linesOffset;
2436 glyphRect.right = item->stateOffset;
2437 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2438 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2439 &glyphRect, NULL);
2440 }
2441 else
2442 {
2443 LONG height = item->rect.bottom - item->rect.top;
2444 LONG width = item->stateOffset - item->linesOffset;
2445 LONG rectsize = min(height, width) / 4;
2446 /* plussize = ceil(rectsize * 3/4) */
2447 LONG plussize = (rectsize + 1) * 3 / 4;
2448
2449 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2450 HPEN old_pen = SelectObject(hdc, new_pen);
2451
2452 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2453 centerx + rectsize + 2, centery + rectsize + 2);
2454
2455 SelectObject(hdc, old_pen);
2456 DeleteObject(new_pen);
2457
2458 /* draw +/- signs with current text color */
2459 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2460 old_pen = SelectObject(hdc, new_pen);
2461
2462 if (height < 18 || width < 18)
2463 {
2464 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2465 LineTo(hdc, centerx + plussize, centery);
2466
2467 if (!(item->state & TVIS_EXPANDED) ||
2468 (item->state & TVIS_EXPANDPARTIAL))
2469 {
2470 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2471 LineTo(hdc, centerx, centery + plussize);
2472 }
2473 }
2474 else
2475 {
2476 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2477 centerx + plussize, centery + 2);
2478
2479 if (!(item->state & TVIS_EXPANDED) ||
2480 (item->state & TVIS_EXPANDPARTIAL))
2481 {
2482 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2483 centerx + 2, centery + plussize);
2484 SetPixel(hdc, centerx - 1, centery, clrBk);
2485 SetPixel(hdc, centerx + 1, centery, clrBk);
2486 }
2487 }
2488
2489 SelectObject(hdc, old_pen);
2490 DeleteObject(new_pen);
2491 }
2492 }
2493 }
2494 SelectObject(hdc, hbrOld);
2495 DeleteObject(hbr);
2496 }
2497
2498 static void
2499 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2500 {
2501 INT cditem;
2502 HFONT hOldFont;
2503 COLORREF oldTextColor, oldTextBkColor;
2504 int centery;
2505 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2506 NMTVCUSTOMDRAW nmcdhdr;
2507
2508 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2509
2510 /* - If item is drop target or it is selected and window is in focus -
2511 * use blue background (COLOR_HIGHLIGHT).
2512 * - If item is selected, window is not in focus, but it has style
2513 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2514 * - Otherwise - use background color
2515 */
2516 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2517 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2518 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2519 {
2520 if ((item->state & TVIS_DROPHILITED) || inFocus)
2521 {
2522 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2523 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2524 }
2525 else
2526 {
2527 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2528 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2529 }
2530 }
2531 else
2532 {
2533 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2534 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2535 nmcdhdr.clrText = comctl32_color.clrHighlight;
2536 else
2537 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2538 }
2539
2540 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2541
2542 /* The custom draw handler can query the text rectangle,
2543 * so get ready. */
2544 /* should already be known, set to 0 when changed */
2545 if (!item->textWidth)
2546 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2547
2548 cditem = 0;
2549
2550 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2551 {
2552 cditem = TREEVIEW_SendCustomDrawItemNotify
2553 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2554 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2555
2556 if (cditem & CDRF_SKIPDEFAULT)
2557 {
2558 SelectObject(hdc, hOldFont);
2559 return;
2560 }
2561 }
2562
2563 if (cditem & CDRF_NEWFONT)
2564 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2565
2566 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2567
2568 /* Set colors. Custom draw handler can change these so we do this after it. */
2569 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2570 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2571
2572 centery = (item->rect.top + item->rect.bottom) / 2;
2573
2574 /*
2575 * Display the images associated with this item
2576 */
2577 {
2578 INT imageIndex;
2579
2580 /* State images are displayed to the left of the Normal image
2581 * image number is in state; zero should be `display no image'.
2582 */
2583 imageIndex = STATEIMAGEINDEX(item->state);
2584
2585 if (infoPtr->himlState && imageIndex)
2586 {
2587 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2588 item->stateOffset,
2589 centery - infoPtr->stateImageHeight / 2,
2590 ILD_NORMAL);
2591 }
2592
2593 /* Now, draw the normal image; can be either selected,
2594 * non-selected or expanded image.
2595 */
2596
2597 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2598 {
2599 /* The item is currently selected */
2600 imageIndex = item->iSelectedImage;
2601 }
2602 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2603 {
2604 /* The item is currently not selected but expanded */
2605 imageIndex = item->iExpandedImage;
2606 }
2607 else
2608 {
2609 /* The item is not selected and not expanded */
2610 imageIndex = item->iImage;
2611 }
2612
2613 if (infoPtr->himlNormal)
2614 {
2615 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2616
2617 style |= item->state & TVIS_OVERLAYMASK;
2618
2619 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2620 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2621 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2622 style);
2623 }
2624 }
2625
2626
2627 /*
2628 * Display the text associated with this item
2629 */
2630
2631 /* Don't paint item's text if it's being edited */
2632 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2633 {
2634 if (item->pszText)
2635 {
2636 RECT rcText;
2637 UINT align;
2638 SIZE sz;
2639
2640 rcText.top = item->rect.top;
2641 rcText.bottom = item->rect.bottom;
2642 rcText.left = item->textOffset;
2643 rcText.right = rcText.left + item->textWidth + 4;
2644
2645 TRACE("drawing text %s at (%s)\n",
2646 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2647
2648 /* Draw it */
2649 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2650
2651 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2652 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2653 ETO_CLIPPED | ETO_OPAQUE,
2654 &rcText,
2655 item->pszText,
2656 lstrlenW(item->pszText),
2657 NULL);
2658 SetTextAlign(hdc, align);
2659
2660 /* Draw focus box around the selected item */
2661 if ((item == infoPtr->selectedItem) && inFocus)
2662 {
2663 DrawFocusRect(hdc,&rcText);
2664 }
2665 }
2666 }
2667
2668 /* Draw insertion mark if necessary */
2669
2670 if (infoPtr->insertMarkItem)
2671 TRACE("item:%d,mark:%p\n",
2672 TREEVIEW_GetItemIndex(infoPtr, item),
2673 infoPtr->insertMarkItem);
2674
2675 if (item == infoPtr->insertMarkItem)
2676 {
2677 HPEN hNewPen, hOldPen;
2678 int offset;
2679 int left, right;
2680
2681 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2682 hOldPen = SelectObject(hdc, hNewPen);
2683
2684 if (infoPtr->insertBeforeorAfter)
2685 offset = item->rect.bottom - 1;
2686 else
2687 offset = item->rect.top + 1;
2688
2689 left = item->textOffset - 2;
2690 right = item->textOffset + item->textWidth + 2;
2691
2692 MoveToEx(hdc, left, offset - 3, NULL);
2693 LineTo(hdc, left, offset + 4);
2694
2695 MoveToEx(hdc, left, offset, NULL);
2696 LineTo(hdc, right + 1, offset);
2697
2698 MoveToEx(hdc, right, offset + 3, NULL);
2699 LineTo(hdc, right, offset - 4);
2700
2701 SelectObject(hdc, hOldPen);
2702 DeleteObject(hNewPen);
2703 }
2704
2705 /* Restore the hdc state */
2706 SetTextColor(hdc, oldTextColor);
2707 SetBkColor(hdc, oldTextBkColor);
2708 SelectObject(hdc, hOldFont);
2709
2710 if (cditem & CDRF_NOTIFYPOSTPAINT)
2711 {
2712 cditem = TREEVIEW_SendCustomDrawItemNotify
2713 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2714 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2715 }
2716 }
2717
2718 /* Computes treeHeight and treeWidth and updates the scroll bars.
2719 */
2720 static void
2721 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2722 {
2723 TREEVIEW_ITEM *item;
2724 HWND hwnd = infoPtr->hwnd;
2725 BOOL vert = FALSE;
2726 BOOL horz = FALSE;
2727 SCROLLINFO si;
2728 LONG scrollX = infoPtr->scrollX;
2729
2730 infoPtr->treeWidth = 0;
2731 infoPtr->treeHeight = 0;
2732
2733 /* We iterate through all visible items in order to get the tree height
2734 * and width */
2735 item = infoPtr->root->firstChild;
2736
2737 while (item != NULL)
2738 {
2739 if (ISVISIBLE(item))
2740 {
2741 /* actually we draw text at textOffset + 2 */
2742 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2743 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2744
2745 /* This is scroll-adjusted, but we fix this below. */
2746 infoPtr->treeHeight = item->rect.bottom;
2747 }
2748
2749 item = TREEVIEW_GetNextListItem(infoPtr, item);
2750 }
2751
2752 /* Fix the scroll adjusted treeHeight and treeWidth. */
2753 if (infoPtr->root->firstChild)
2754 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2755
2756 infoPtr->treeWidth += infoPtr->scrollX;
2757
2758 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2759
2760 /* Adding one scroll bar may take up enough space that it forces us
2761 * to add the other as well. */
2762 if (infoPtr->treeHeight > infoPtr->clientHeight)
2763 {
2764 vert = TRUE;
2765
2766 if (infoPtr->treeWidth
2767 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2768 horz = TRUE;
2769 }
2770 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2771 horz = TRUE;
2772
2773 if (!vert && horz && infoPtr->treeHeight
2774 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2775 vert = TRUE;
2776
2777 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2778
2779 si.cbSize = sizeof(SCROLLINFO);
2780 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2781 si.nMin = 0;
2782
2783 if (vert)
2784 {
2785 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2786 if ( si.nPage && NULL != infoPtr->firstVisible)
2787 {
2788 si.nPos = infoPtr->firstVisible->visibleOrder;
2789 si.nMax = infoPtr->maxVisibleOrder - 1;
2790
2791 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2792
2793 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2794 ShowScrollBar(hwnd, SB_VERT, TRUE);
2795 infoPtr->uInternalStatus |= TV_VSCROLL;
2796 }
2797 else
2798 {
2799 if (infoPtr->uInternalStatus & TV_VSCROLL)
2800 ShowScrollBar(hwnd, SB_VERT, FALSE);
2801 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2802 }
2803 }
2804 else
2805 {
2806 if (infoPtr->uInternalStatus & TV_VSCROLL)
2807 ShowScrollBar(hwnd, SB_VERT, FALSE);
2808 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2809 }
2810
2811 if (horz)
2812 {
2813 si.nPage = infoPtr->clientWidth;
2814 si.nPos = infoPtr->scrollX;
2815 si.nMax = infoPtr->treeWidth - 1;
2816
2817 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2818 {
2819 si.nPos = si.nMax - max( si.nPage-1, 0 );
2820 scrollX = si.nPos;
2821 }
2822
2823 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2824 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2825 infoPtr->uInternalStatus |= TV_HSCROLL;
2826
2827 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2828 TREEVIEW_HScroll(infoPtr,
2829 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2830 }
2831 else
2832 {
2833 if (infoPtr->uInternalStatus & TV_HSCROLL)
2834 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2835 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2836
2837 scrollX = 0;
2838 if (infoPtr->scrollX != 0)
2839 {
2840 TREEVIEW_HScroll(infoPtr,
2841 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2842 }
2843 }
2844
2845 if (!horz)
2846 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2847 }
2848
2849 static void
2850 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2851 {
2852 HBRUSH hBrush;
2853 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2854
2855 hBrush = CreateSolidBrush(clrBk);
2856 FillRect(hdc, rc, hBrush);
2857 DeleteObject(hBrush);
2858 }
2859
2860 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2861 static LRESULT
2862 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2863 {
2864 RECT rect;
2865
2866 TRACE("%p\n", infoPtr);
2867
2868 GetClientRect(infoPtr->hwnd, &rect);
2869 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2870
2871 return 1;
2872 }
2873
2874 static void
2875 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2876 {
2877 HWND hwnd = infoPtr->hwnd;
2878 RECT rect = *rc;
2879 TREEVIEW_ITEM *item;
2880
2881 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2882 {
2883 TRACE("empty window\n");
2884 return;
2885 }
2886
2887 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2888 hdc, rect);
2889
2890 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2891 {
2892 ReleaseDC(hwnd, hdc);
2893 return;
2894 }
2895
2896 for (item = infoPtr->root->firstChild;
2897 item != NULL;
2898 item = TREEVIEW_GetNextListItem(infoPtr, item))
2899 {
2900 if (ISVISIBLE(item))
2901 {
2902 /* Avoid unneeded calculations */
2903 if (item->rect.top > rect.bottom)
2904 break;
2905 if (item->rect.bottom < rect.top)
2906 continue;
2907
2908 TREEVIEW_DrawItem(infoPtr, hdc, item);
2909 }
2910 }
2911
2912 TREEVIEW_UpdateScrollBars(infoPtr);
2913
2914 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2915 infoPtr->cdmode =
2916 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2917 }
2918
2919 static inline void
2920 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2921 {
2922 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2923 }
2924
2925 static void
2926 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2927 {
2928 if (item)
2929 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2930 else
2931 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2932 }
2933
2934 static void
2935 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2936 {
2937 RECT rc;
2938 HBITMAP hbm, hbmOld;
2939 HDC hdc, hdcScreen;
2940 int nIndex;
2941
2942 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2943
2944 hdcScreen = GetDC(0);
2945
2946 hdc = CreateCompatibleDC(hdcScreen);
2947 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2948 hbmOld = SelectObject(hdc, hbm);
2949
2950 SetRect(&rc, 0, 0, 48, 16);
2951 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2952
2953 SetRect(&rc, 18, 2, 30, 14);
2954 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2955 DFCS_BUTTONCHECK|DFCS_FLAT);
2956
2957 SetRect(&rc, 34, 2, 46, 14);
2958 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2959 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2960
2961 SelectObject(hdc, hbmOld);
2962 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2963 comctl32_color.clrWindow);
2964 TRACE("checkbox index %d\n", nIndex);
2965
2966 DeleteObject(hbm);
2967 DeleteDC(hdc);
2968 ReleaseDC(0, hdcScreen);
2969
2970 infoPtr->stateImageWidth = 16;
2971 infoPtr->stateImageHeight = 16;
2972 }
2973
2974 static void
2975 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2976 {
2977 TREEVIEW_ITEM *child = item->firstChild;
2978
2979 item->state &= ~TVIS_STATEIMAGEMASK;
2980 item->state |= INDEXTOSTATEIMAGEMASK(1);
2981
2982 while (child)
2983 {
2984 TREEVIEW_ITEM *next = child->nextSibling;
2985 TREEVIEW_ResetImageStateIndex(infoPtr, child);
2986 child = next;
2987 }
2988 }
2989
2990 static LRESULT
2991 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2992 {
2993 HDC hdc;
2994 PAINTSTRUCT ps;
2995 RECT rc;
2996
2997 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2998
2999 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
3000 {
3001 TREEVIEW_InitCheckboxes(infoPtr);
3002 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3003
3004 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
3005 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3006 TREEVIEW_UpdateScrollBars(infoPtr);
3007 TREEVIEW_Invalidate(infoPtr, NULL);
3008 }
3009
3010 if (hdc_ref)
3011 {
3012 hdc = hdc_ref;
3013 GetClientRect(infoPtr->hwnd, &rc);
3014 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3015 }
3016 else
3017 {
3018 hdc = BeginPaint(infoPtr->hwnd, &ps);
3019 rc = ps.rcPaint;
3020 if(ps.fErase)
3021 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3022 }
3023
3024 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3025 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3026
3027 if (!hdc_ref)
3028 EndPaint(infoPtr->hwnd, &ps);
3029
3030 return 0;
3031 }
3032
3033 static LRESULT
3034 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3035 {
3036 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3037
3038 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3039 return 0;
3040
3041 if (options & PRF_ERASEBKGND)
3042 TREEVIEW_EraseBackground(infoPtr, hdc);
3043
3044 if (options & PRF_CLIENT)
3045 {
3046 RECT rc;
3047 GetClientRect(infoPtr->hwnd, &rc);
3048 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3049 }
3050
3051 return 0;
3052 }
3053
3054 /* Sorting **************************************************************/
3055
3056 /***************************************************************************
3057 * Forward the DPA local callback to the treeview owner callback
3058 */
3059 static INT WINAPI
3060 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3061 const TVSORTCB *pCallBackSort)
3062 {
3063 /* Forward the call to the client-defined callback */
3064 return pCallBackSort->lpfnCompare(first->lParam,
3065 second->lParam,
3066 pCallBackSort->lParam);
3067 }
3068
3069 /***************************************************************************
3070 * Treeview native sort routine: sort on item text.
3071 */
3072 static INT WINAPI
3073 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3074 const TREEVIEW_INFO *infoPtr)
3075 {
3076 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3077 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3078
3079 if(first->pszText && second->pszText)
3080 return lstrcmpiW(first->pszText, second->pszText);
3081 else if(first->pszText)
3082 return -1;
3083 else if(second->pszText)
3084 return 1;
3085 else
3086 return 0;
3087 }
3088
3089 /* Returns the number of physical children belonging to item. */
3090 static INT
3091 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3092 {
3093 INT cChildren = 0;
3094 HTREEITEM hti;
3095
3096 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3097 cChildren++;
3098
3099 return cChildren;
3100 }
3101
3102 /* Returns a DPA containing a pointer to each physical child of item in
3103 * sibling order. If item has no children, an empty DPA is returned. */
3104 static HDPA
3105 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3106 {
3107 HTREEITEM child;
3108
3109 HDPA list = DPA_Create(8);
3110 if (list == 0) return NULL;
3111
3112 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3113 {
3114 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3115 {
3116 DPA_Destroy(list);
3117 return NULL;
3118 }
3119 }
3120
3121 return list;
3122 }
3123
3124 /***************************************************************************
3125 * Setup the treeview structure with regards of the sort method
3126 * and sort the children of the TV item specified in lParam
3127 * fRecurse: currently unused. Should be zero.
3128 * parent: if pSort!=NULL, should equal pSort->hParent.
3129 * otherwise, item which child items are to be sorted.
3130 * pSort: sort method info. if NULL, sort on item text.
3131 * if non-NULL, sort on item's lParam content, and let the
3132 * application decide what that means. See also TVM_SORTCHILDRENCB.
3133 */
3134
3135 static LRESULT
3136 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3137 LPTVSORTCB pSort)
3138 {
3139 INT cChildren;
3140 PFNDPACOMPARE pfnCompare;
3141 LPARAM lpCompare;
3142
3143 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3144 if (parent == TVI_ROOT || parent == NULL)
3145 parent = infoPtr->root;
3146
3147 /* Check for a valid handle to the parent item */
3148 if (!TREEVIEW_ValidItem(infoPtr, parent))
3149 {
3150 ERR("invalid item hParent=%p\n", parent);
3151 return FALSE;
3152 }
3153
3154 if (pSort)
3155 {
3156 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3157 lpCompare = (LPARAM)pSort;
3158 }
3159 else
3160 {
3161 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3162 lpCompare = (LPARAM)infoPtr;
3163 }
3164
3165 cChildren = TREEVIEW_CountChildren(parent);
3166
3167 /* Make sure there is something to sort */
3168 if (cChildren > 1)
3169 {
3170 /* TREEVIEW_ITEM rechaining */
3171 INT count = 0;
3172 HTREEITEM item = 0;
3173 HTREEITEM nextItem = 0;
3174 HTREEITEM prevItem = 0;
3175
3176 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3177
3178 if (sortList == NULL)
3179 return FALSE;
3180
3181 /* let DPA sort the list */
3182 DPA_Sort(sortList, pfnCompare, lpCompare);
3183
3184 /* The order of DPA entries has been changed, so fixup the
3185 * nextSibling and prevSibling pointers. */
3186
3187 item = DPA_GetPtr(sortList, count++);
3188 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3189 {
3190 /* link the two current item together */
3191 item->nextSibling = nextItem;
3192 nextItem->prevSibling = item;
3193
3194 if (prevItem == NULL)
3195 {
3196 /* this is the first item, update the parent */
3197 parent->firstChild = item;
3198 item->prevSibling = NULL;
3199 }
3200 else
3201 {
3202 /* fix the back chaining */
3203 item->prevSibling = prevItem;
3204 }
3205
3206 /* get ready for the next one */
3207 prevItem = item;
3208 item = nextItem;
3209 }
3210
3211 /* the last item is pointed to by item and never has a sibling */
3212 item->nextSibling = NULL;
3213 parent->lastChild = item;
3214
3215 DPA_Destroy(sortList);
3216
3217 TREEVIEW_VerifyTree(infoPtr);
3218
3219 if (parent->state & TVIS_EXPANDED)
3220 {
3221 int visOrder = infoPtr->firstVisible->visibleOrder;
3222
3223 if (parent == infoPtr->root)
3224 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3225 else
3226 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3227
3228 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3229 {
3230 TREEVIEW_ITEM *item;
3231
3232 for (item = infoPtr->root->firstChild; item != NULL;
3233 item = TREEVIEW_GetNextListItem(infoPtr, item))
3234 {
3235 if (item->visibleOrder == visOrder)
3236 break;
3237 }
3238
3239 if (!item) item = parent->firstChild;
3240 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3241 }
3242
3243 TREEVIEW_Invalidate(infoPtr, NULL);
3244 }
3245
3246 return TRUE;
3247 }
3248 return FALSE;
3249 }
3250
3251
3252 /***************************************************************************
3253 * Setup the treeview structure with regards of the sort method
3254 * and sort the children of the TV item specified in lParam
3255 */
3256 static LRESULT
3257 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3258 {
3259 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3260 }
3261
3262
3263 /***************************************************************************
3264 * Sort the children of the TV item specified in lParam.
3265 */
3266 static LRESULT
3267 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3268 {
3269 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3270 }
3271
3272
3273 /* Expansion/Collapse ***************************************************/
3274
3275 static BOOL
3276 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3277 UINT action)
3278 {
3279 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3280 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3281 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3282 0, item);
3283 }
3284
3285 static VOID
3286 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3287 UINT action)
3288 {
3289 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3290 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3291 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3292 0, item);
3293 }
3294
3295
3296 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3297 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3298 static BOOL
3299 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3300 BOOL bRemoveChildren, BOOL bUser)
3301 {
3302 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3303 BOOL bSetSelection, bSetFirstVisible;
3304 RECT scrollRect;
3305 LONG scrollDist = 0;
3306 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3307 BOOL wasExpanded;
3308
3309 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3310
3311 if (!TREEVIEW_HasChildren(infoPtr, item))
3312 return FALSE;
3313
3314 if (bUser)
3315 TREEVIEW_SendExpanding(infoPtr, item, action);
3316
3317 if (item->firstChild == NULL)
3318 return FALSE;
3319
3320 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3321 item->state &= ~TVIS_EXPANDED;
3322
3323 if (wasExpanded && bUser)
3324 TREEVIEW_SendExpanded(infoPtr, item, action);
3325
3326 bSetSelection = (infoPtr->selectedItem != NULL
3327 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3328
3329 bSetFirstVisible = (infoPtr->firstVisible != NULL
3330 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3331
3332 tmpItem = item;
3333 while (tmpItem)
3334 {
3335 if (tmpItem->nextSibling)
3336 {
3337 nextItem = tmpItem->nextSibling;
3338 break;
3339 }
3340 tmpItem = tmpItem->parent;
3341 }
3342
3343 if (nextItem)
3344 scrollDist = nextItem->rect.top;
3345
3346 if (bRemoveChildren)
3347 {
3348 INT old_cChildren = item->cChildren;
3349 TRACE("TVE_COLLAPSERESET\n");
3350 item->state &= ~TVIS_EXPANDEDONCE;
3351 TREEVIEW_RemoveAllChildren(infoPtr, item);
3352 item->cChildren = old_cChildren;
3353 }
3354 if (!wasExpanded)
3355 return FALSE;
3356
3357 if (item->firstChild)
3358 {
3359 TREEVIEW_ITEM *i, *sibling;
3360
3361 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3362
3363 for (i = item->firstChild; i != sibling;
3364 i = TREEVIEW_GetNextListItem(infoPtr, i))
3365 {
3366 i->visibleOrder = -1;
3367 }
3368 }
3369
3370 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3371
3372 if (nextItem)
3373 scrollDist = -(scrollDist - nextItem->rect.top);
3374
3375 if (bSetSelection)
3376 {
3377 /* Don't call DoSelectItem, it sends notifications. */
3378 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3379 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3380 item->state |= TVIS_SELECTED;
3381 infoPtr->selectedItem = item;
3382 }
3383
3384 TREEVIEW_UpdateScrollBars(infoPtr);
3385
3386 scrollRect.left = 0;
3387 scrollRect.right = infoPtr->clientWidth;
3388 scrollRect.bottom = infoPtr->clientHeight;
3389
3390 if (nextItem)
3391 {
3392 scrollRect.top = nextItem->rect.top;
3393
3394 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3395 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3396 TREEVIEW_Invalidate(infoPtr, item);
3397 } else {
3398 scrollRect.top = item->rect.top;
3399 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3400 }
3401
3402 TREEVIEW_SetFirstVisible(infoPtr,
3403 bSetFirstVisible ? item : infoPtr->firstVisible,
3404 TRUE);
3405
3406 return wasExpanded;
3407 }
3408
3409 static BOOL
3410 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3411 BOOL partial, BOOL user)
3412 {
3413 LONG scrollDist;
3414 LONG orgNextTop = 0;
3415 RECT scrollRect;
3416 TREEVIEW_ITEM *nextItem, *tmpItem;
3417 BOOL sendsNotifications;
3418
3419 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3420
3421 if (!TREEVIEW_HasChildren(infoPtr, item))
3422 return FALSE;
3423
3424 tmpItem = item; nextItem = NULL;
3425 while (tmpItem)
3426 {
3427 if (tmpItem->nextSibling)
3428 {
3429 nextItem = tmpItem->nextSibling;
3430 break;
3431 }
3432 tmpItem = tmpItem->parent;
3433 }
3434
3435 if (nextItem)
3436 orgNextTop = nextItem->rect.top;
3437
3438 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3439
3440 sendsNotifications = user || ((item->cChildren != 0) &&
3441 !(item->state & TVIS_EXPANDEDONCE));
3442 if (sendsNotifications)
3443 {
3444 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3445 {
3446 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3447 return FALSE;
3448 }
3449 }
3450 if (!item->firstChild)
3451 return FALSE;
3452
3453 item->state |= TVIS_EXPANDED;
3454
3455 if (partial)
3456 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3457
3458 if (ISVISIBLE(item))
3459 {
3460 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3461 TREEVIEW_UpdateSubTree(infoPtr, item);
3462 TREEVIEW_UpdateScrollBars(infoPtr);
3463
3464 scrollRect.left = 0;
3465 scrollRect.bottom = infoPtr->treeHeight;
3466 scrollRect.right = infoPtr->clientWidth;
3467 if (nextItem)
3468 {
3469 scrollDist = nextItem->rect.top - orgNextTop;
3470 scrollRect.top = orgNextTop;
3471
3472 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3473 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3474 TREEVIEW_Invalidate (infoPtr, item);
3475 } else {
3476 scrollRect.top = item->rect.top;
3477 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3478 }
3479
3480 /* Scroll up so that as many children as possible are visible.
3481 * This fails when expanding causes an HScroll bar to appear, but we
3482 * don't know that yet, so the last item is obscured. */
3483 if (item->firstChild != NULL)
3484 {
3485 int nChildren = item->lastChild->visibleOrder
3486 - item->firstChild->visibleOrder + 1;
3487
3488 int visible_pos = item->visibleOrder
3489 - infoPtr->firstVisible->visibleOrder;
3490
3491 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3492
3493 if (visible_pos > 0 && nChildren > rows_below)
3494 {
3495 int scroll = nChildren - rows_below;
3496
3497 if (scroll > visible_pos)
3498 scroll = visible_pos;
3499
3500 if (scroll > 0)
3501 {
3502 TREEVIEW_ITEM *newFirstVisible
3503 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3504 scroll);
3505
3506
3507 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3508 }
3509 }
3510 }
3511 }
3512
3513 if (sendsNotifications) {
3514 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3515 item->state |= TVIS_EXPANDEDONCE;
3516 }
3517
3518 return TRUE;
3519 }
3520
3521 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3522 to mouse messages and TVM_SELECTITEM.
3523
3524 selection - previously selected item, used to collapse a part of a tree
3525 item - new selected item
3526 */
3527 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3528 HTREEITEM selection, HTREEITEM item)
3529 {
3530 TREEVIEW_ITEM *prev, *curr;
3531
3532 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3533
3534 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3535
3536 /*
3537 * Close the previous item and its ancestors as long as they are not
3538 * ancestors of the current item
3539 */
3540 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3541 {
3542 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3543 {
3544 if (curr == prev)
3545 goto finish;
3546 }
3547 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3548 }
3549
3550 finish:
3551 /*
3552 * Expand the current item
3553 */
3554 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3555 }
3556
3557 static BOOL
3558 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3559 {
3560 TRACE("item=%p, user=%d\n", item, user);
3561
3562 if (item->state & TVIS_EXPANDED)
3563 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3564 else
3565 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3566 }
3567
3568 static VOID
3569 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3570 {
3571 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3572
3573 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3574 {
3575 if (TREEVIEW_HasChildren(infoPtr, item))
3576 TREEVIEW_ExpandAll(infoPtr, item);
3577 }
3578 }
3579
3580 /* Note:If the specified item is the child of a collapsed parent item,
3581 the parent's list of child items is (recursively) expanded to reveal the
3582 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3583 know if it also applies here.
3584 */
3585
3586 static LRESULT
3587 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3588 {
3589 if (!TREEVIEW_ValidItem(infoPtr, item))
3590 return 0;
3591
3592 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3593 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3594 flag, item->state);
3595
3596 switch (flag & TVE_TOGGLE)
3597 {
3598 case TVE_COLLAPSE:
3599 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3600 FALSE);
3601
3602 case TVE_EXPAND:
3603 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3604 FALSE);
3605
3606 case TVE_TOGGLE:
3607 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3608
3609 default:
3610 return 0;
3611 }
3612 }
3613
3614 /* Hit-Testing **********************************************************/
3615
3616 static TREEVIEW_ITEM *
3617 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3618 {
3619 TREEVIEW_ITEM *item;
3620 LONG row;
3621
3622 if (!infoPtr->firstVisible)
3623 return NULL;
3624
3625 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3626
3627 for (item = infoPtr->firstVisible; item != NULL;
3628 item = TREEVIEW_GetNextListItem(infoPtr, item))
3629 {
3630 if (row >= item->visibleOrder
3631 && row < item->visibleOrder + item->iIntegral)
3632 break;
3633 }
3634
3635 return item;
3636 }
3637
3638 static LRESULT
3639 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3640 {
3641 TREEVIEW_ITEM *item;
3642 RECT rect;
3643 UINT status;
3644 LONG x, y;
3645
3646 lpht->hItem = 0;
3647 GetClientRect(infoPtr->hwnd, &rect);
3648 status = 0;
3649 x = lpht->pt.x;
3650 y = lpht->pt.y;
3651
3652 if (x < rect.left)
3653 {
3654 status |= TVHT_TOLEFT;
3655 }
3656 else if (x > rect.right)
3657 {
3658 status |= TVHT_TORIGHT;
3659 }
3660
3661 if (y < rect.top)
3662 {
3663 status |= TVHT_ABOVE;
3664 }
3665 else if (y > rect.bottom)
3666 {
3667 status |= TVHT_BELOW;
3668 }
3669
3670 if (status)
3671 {
3672 lpht->flags = status;
3673 return 0;
3674 }
3675
3676 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3677 if (!item)
3678 {
3679 lpht->flags = TVHT_NOWHERE;
3680 return 0;
3681 }
3682
3683 if (x >= item->textOffset + item->textWidth)
3684 {
3685 lpht->flags = TVHT_ONITEMRIGHT;
3686 }
3687 else if (x >= item->textOffset)
3688 {
3689 lpht->flags = TVHT_ONITEMLABEL;
3690 }
3691 else if (x >= item->imageOffset)
3692 {
3693 lpht->flags = TVHT_ONITEMICON;
3694 }
3695 else if (x >= item->stateOffset)
3696 {
3697 lpht->flags = TVHT_ONITEMSTATEICON;
3698 }
3699 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3700 {
3701 lpht->flags = TVHT_ONITEMBUTTON;
3702 }
3703 else
3704 {
3705 lpht->flags = TVHT_ONITEMINDENT;
3706 }
3707
3708 lpht->hItem = item;
3709 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3710
3711 return (LRESULT)item;
3712 }
3713
3714 /* Item Label Editing ***************************************************/
3715
3716 static LRESULT
3717 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3718 {
3719 return (LRESULT)infoPtr->hwndEdit;
3720 }
3721
3722 static LRESULT CALLBACK
3723 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3724 {
3725 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3726 BOOL bCancel = FALSE;
3727 LRESULT rc;
3728
3729 switch (uMsg)
3730 {
3731 case WM_PAINT:
3732 TRACE("WM_PAINT start\n");
3733 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3734 lParam);
3735 TRACE("WM_PAINT done\n");
3736 return rc;
3737
3738 case WM_KILLFOCUS:
3739 if (infoPtr->bIgnoreEditKillFocus)
3740 return TRUE;
3741 break;
3742
3743 case WM_DESTROY:
3744 {
3745 WNDPROC editProc = infoPtr->wpEditOrig;
3746 infoPtr->wpEditOrig = 0;
3747 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3748 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3749 }
3750
3751 case WM_GETDLGCODE:
3752 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3753
3754 case WM_KEYDOWN:
3755 if (wParam == VK_ESCAPE)
3756 {
3757 bCancel = TRUE;
3758 break;
3759 }
3760 else if (wParam == VK_RETURN)
3761 {
3762 break;
3763 }
3764
3765 /* fall through */
3766 default:
3767 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3768 }
3769
3770 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3771 /* eg. Using a messagebox */
3772
3773 infoPtr->bIgnoreEditKillFocus = TRUE;
3774 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3775 infoPtr->bIgnoreEditKillFocus = FALSE;
3776
3777 return 0;
3778 }
3779
3780
3781 /* should handle edit control messages here */
3782
3783 static LRESULT
3784 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3785 {
3786 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3787
3788 switch (HIWORD(wParam))
3789 {
3790 case EN_UPDATE:
3791 {
3792 /*
3793 * Adjust the edit window size
3794 */
3795 WCHAR buffer[1024];
3796 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3797 HDC hdc = GetDC(infoPtr->hwndEdit);
3798 SIZE sz;
3799 HFONT hFont, hOldFont = 0;
3800
3801 TRACE("edit=%p\n", infoPtr->hwndEdit);
3802
3803 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3804
3805 infoPtr->bLabelChanged = TRUE;
3806
3807 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3808
3809 /* Select font to get the right dimension of the string */
3810 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3811
3812 if (hFont != 0)
3813 {
3814 hOldFont = SelectObject(hdc, hFont);
3815 }
3816
3817 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3818 {
3819 TEXTMETRICW textMetric;
3820
3821 /* Add Extra spacing for the next character */
3822 GetTextMetricsW(hdc, &textMetric);
3823 sz.cx += (textMetric.tmMaxCharWidth * 2);
3824
3825 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3826 sz.cx = min(sz.cx,
3827 infoPtr->clientWidth - editItem->textOffset + 2);
3828
3829 SetWindowPos(infoPtr->hwndEdit,
3830 HWND_TOP,
3831 0,
3832 0,
3833 sz.cx,
3834 editItem->rect.bottom - editItem->rect.top + 3,
3835 SWP_NOMOVE | SWP_DRAWFRAME);
3836 }
3837
3838 if (hFont != 0)
3839 {
3840 SelectObject(hdc, hOldFont);
3841 }
3842
3843 ReleaseDC(infoPtr->hwnd, hdc);
3844 break;
3845 }
3846 case EN_KILLFOCUS:
3847 /* apparently we should respect passed handle value */
3848 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3849
3850 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3851 break;
3852
3853 default:
3854 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3855 }
3856
3857 return 0;
3858 }
3859
3860 static HWND
3861 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3862 {
3863 HWND hwnd = infoPtr->hwnd;
3864 HWND hwndEdit;
3865 SIZE sz;
3866 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3867 HDC hdc;
3868 HFONT hOldFont=0;
3869 TEXTMETRICW textMetric;
3870
3871 TRACE("%p %p\n", hwnd, hItem);
3872 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3873 return NULL;
3874
3875 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3876 return NULL;
3877
3878 if (infoPtr->hwndEdit)
3879 return infoPtr->hwndEdit;
3880
3881 infoPtr->bLabelChanged = FALSE;
3882
3883 /* make edit item visible */
3884 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3885
3886 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3887
3888 hdc = GetDC(hwnd);
3889 /* Select the font to get appropriate metric dimensions */
3890 if (infoPtr->hFont != 0)
3891 {
3892 hOldFont = SelectObject(hdc, infoPtr->hFont);
3893 }
3894
3895 /* Get string length in pixels */
3896 if (hItem->pszText)
3897 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3898 &sz);
3899 else
3900 GetTextExtentPoint32A(hdc, "", 0, &sz);
3901
3902 /* Add Extra spacing for the next character */
3903 GetTextMetricsW(hdc, &textMetric);
3904 sz.cx += (textMetric.tmMaxCharWidth * 2);
3905
3906 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3907 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3908
3909 if (infoPtr->hFont != 0)
3910 {
3911 SelectObject(hdc, hOldFont);
3912 }
3913
3914 ReleaseDC(hwnd, hdc);
3915
3916 infoPtr->editItem = hItem;
3917
3918 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3919 WC_EDITW,
3920 0,
3921 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3922 WS_CLIPSIBLINGS | ES_WANTRETURN |
3923 ES_LEFT, hItem->textOffset - 2,
3924 hItem->rect.top - 1, sz.cx + 3,
3925 hItem->rect.bottom -
3926 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3927 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3928
3929 infoPtr->hwndEdit = hwndEdit;
3930
3931 /* Get a 2D border. */
3932 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3933 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3934 SetWindowLongW(hwndEdit, GWL_STYLE,
3935 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3936
3937 SendMessageW(hwndEdit, WM_SETFONT,
3938 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3939
3940 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3941 (DWORD_PTR)
3942 TREEVIEW_Edit_SubclassProc);
3943 if (hItem->pszText)
3944 SetWindowTextW(hwndEdit, hItem->pszText);
3945
3946 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3947 {
3948 DestroyWindow(hwndEdit);
3949 infoPtr->hwndEdit = 0;
3950 infoPtr->editItem = NULL;
3951 return NULL;
3952 }
3953
3954 SetFocus(hwndEdit);
3955 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3956 ShowWindow(hwndEdit, SW_SHOW);
3957
3958 return hwndEdit;
3959 }
3960
3961
3962 static LRESULT
3963 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3964 {
3965 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3966 NMTVDISPINFOW tvdi;
3967 BOOL bCommit;
3968 WCHAR tmpText[1024] = { '\0' };
3969 WCHAR *newText = tmpText;
3970 int iLength = 0;
3971
3972 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3973
3974 tvdi.item.mask = 0;
3975 tvdi.item.hItem = editedItem;
3976 tvdi.item.state = editedItem->state;
3977 tvdi.item.lParam = editedItem->lParam;
3978
3979 if (!bCancel)
3980 {
3981 if (!infoPtr->bNtfUnicode)
3982 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3983 else
3984 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3985
3986 if (iLength >= 1023)
3987 {
3988 ERR("Insufficient space to retrieve new item label\n");
3989 }
3990
3991 tvdi.item.mask = TVIF_TEXT;
3992 tvdi.item.pszText = tmpText;
3993 tvdi.item.cchTextMax = iLength + 1;
3994 }
3995 else
3996 {
3997 tvdi.item.pszText = NULL;
3998 tvdi.item.cchTextMax = 0;
3999 }
4000
4001 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4002
4003 if (!bCancel && bCommit) /* Apply the changes */
4004 {
4005 if (!infoPtr->bNtfUnicode)
4006 {
4007 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4008 newText = Alloc(len * sizeof(WCHAR));
4009 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4010 iLength = len - 1;
4011 }
4012
4013 if (strcmpW(newText, editedItem->pszText) != 0)
4014 {
4015 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4016 if (ptr == NULL)
4017 {
4018 ERR("OutOfMemory, cannot allocate space for label\n");
4019 if(newText != tmpText) Free(newText);
4020 DestroyWindow(infoPtr->hwndEdit);
4021 infoPtr->hwndEdit = 0;
4022 infoPtr->editItem = NULL;
4023 return FALSE;
4024 }
4025 else
4026 {
4027 editedItem->pszText = ptr;
4028 editedItem->cchTextMax = iLength + 1;
4029 strcpyW(editedItem->pszText, newText);
4030 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4031 }
4032 }
4033 if(newText != tmpText) Free(newText);
4034 }
4035
4036 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4037 DestroyWindow(infoPtr->hwndEdit);
4038 infoPtr->hwndEdit = 0;
4039 infoPtr->editItem = NULL;
4040 return TRUE;
4041 }
4042
4043 static LRESULT
4044 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4045 {
4046 if (wParam != TV_EDIT_TIMER)
4047 {
4048 ERR("got unknown timer\n");
4049 return 1;
4050 }
4051
4052 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4053 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4054
4055 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4056
4057 return 0;
4058 }
4059
4060
4061 /* Mouse Tracking/Drag **************************************************/
4062
4063 /***************************************************************************
4064 * This is quite unusual piece of code, but that's how it's implemented in
4065 * Windows.
4066 */
4067 static LRESULT
4068 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4069 {
4070 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4071 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4072 RECT r;
4073 MSG msg;
4074
4075 r.top = pt.y - cyDrag;
4076 r.left = pt.x - cxDrag;
4077 r.bottom = pt.y + cyDrag;
4078 r.right = pt.x + cxDrag;
4079
4080 SetCapture(infoPtr->hwnd);
4081
4082 while (1)
4083 {
4084 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4085 {
4086 if (msg.message == WM_MOUSEMOVE)
4087 {
4088 pt.x = (short)LOWORD(msg.lParam);
4089 pt.y = (short)HIWORD(msg.lParam);
4090 if (PtInRect(&r, pt))
4091 continue;
4092 else
4093 {
4094 ReleaseCapture();
4095 return 1;
4096 }
4097 }
4098 else if (msg.message >= WM_LBUTTONDOWN &&
4099 msg.message <= WM_RBUTTONDBLCLK)
4100 {
4101 break;
4102 }
4103
4104 DispatchMessageW(&msg);
4105 }
4106
4107 if (GetCapture() != infoPtr->hwnd)
4108 return 0;
4109 }
4110
4111 ReleaseCapture();
4112 return 0;
4113 }
4114
4115
4116 static LRESULT
4117 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4118 {
4119 TREEVIEW_ITEM *item;
4120 TVHITTESTINFO hit;
4121
4122 TRACE("\n");
4123 SetFocus(infoPtr->hwnd);
4124
4125 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4126 {
4127 /* If there is pending 'edit label' event - kill it now */
4128 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4129 }
4130
4131 hit.pt.x = (short)LOWORD(lParam);
4132 hit.pt.y = (short)HIWORD(lParam);
4133
4134 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4135 if (!item)
4136 return 0;
4137 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4138
4139 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4140 { /* FIXME! */
4141 switch (hit.flags)
4142 {
4143 case TVHT_ONITEMRIGHT:
4144 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4145 break;
4146
4147 case TVHT_ONITEMINDENT:
4148 if (!(infoPtr->dwStyle & TVS_HASLINES))
4149 {
4150 break;
4151 }
4152 else
4153 {
4154 int level = hit.pt.x / infoPtr->uIndent;
4155 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4156
4157 while (item->iLevel > level)
4158 {
4159 item = item->parent;
4160 }
4161
4162 /* fall through */
4163 }
4164
4165 case TVHT_ONITEMLABEL:
4166 case TVHT_ONITEMICON:
4167 case TVHT_ONITEMBUTTON:
4168 TREEVIEW_Toggle(infoPtr, item, TRUE);
4169 break;
4170
4171 case TVHT_ONITEMSTATEICON:
4172 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4173 TREEVIEW_ToggleItemState(infoPtr, item);
4174 else
4175 TREEVIEW_Toggle(infoPtr, item, TRUE);
4176 break;
4177 }
4178 }
4179 return TRUE;
4180 }
4181
4182
4183 static LRESULT
4184 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4185 {
4186 HWND hwnd = infoPtr->hwnd;
4187 TVHITTESTINFO ht;
4188 BOOL bTrack, bDoLabelEdit;
4189
4190 /* If Edit control is active - kill it and return.
4191 * The best way to do it is to set focus to itself.
4192 * Edit control subclassed procedure will automatically call
4193 * EndEditLabelNow.
4194 */
4195 if (infoPtr->hwndEdit)
4196 {
4197 SetFocus(hwnd);
4198 return 0;
4199 }
4200
4201 ht.pt.x = (short)LOWORD(lParam);
4202 ht.pt.y = (short)HIWORD(lParam);
4203
4204 TREEVIEW_HitTest(infoPtr, &ht);
4205 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4206
4207 /* update focusedItem and redraw both items */
4208 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4209 {
4210 infoPtr->focusedItem = ht.hItem;
4211 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4212 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4213 }
4214
4215 bTrack = (ht.flags & TVHT_ONITEM)
4216 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4217
4218 /*
4219 * If the style allows editing and the node is already selected
4220 * and the click occurred on the item label...
4221 */
4222 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4223 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4224
4225 /* Send NM_CLICK right away */
4226 if (!bTrack)
4227 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4228 goto setfocus;
4229
4230 if (ht.flags & TVHT_ONITEMBUTTON)
4231 {
4232 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4233 goto setfocus;
4234 }
4235 else if (bTrack)
4236 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4237 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4238 {
4239 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4240 infoPtr->dropItem = ht.hItem;
4241
4242 /* clean up focusedItem as we dragged and won't select this item */
4243 if(infoPtr->focusedItem)
4244 {
4245 /* refresh the item that was focused */
4246 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4247 infoPtr->focusedItem = NULL;
4248
4249 /* refresh the selected item to return the filled background */
4250 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4251 }
4252
4253 return 0;
4254 }
4255 }
4256
4257 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4258 goto setfocus;
4259
4260 if (bDoLabelEdit)
4261 {
4262 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4263 KillTimer(hwnd, TV_EDIT_TIMER);
4264
4265 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4266 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4267 }
4268 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4269 {
4270 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4271
4272 /* Select the current item */
4273 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4274 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4275 }
4276 else if (ht.flags & TVHT_ONITEMSTATEICON)
4277 {
4278 /* TVS_CHECKBOXES requires us to toggle the current state */
4279 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4280 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4281 }
4282
4283 setfocus:
4284 SetFocus(hwnd);
4285 return 0;
4286 }
4287
4288
4289 static LRESULT
4290 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4291 {
4292 TVHITTESTINFO ht;
4293
4294 if (infoPtr->hwndEdit)
4295 {
4296 SetFocus(infoPtr->hwnd);
4297 return 0;
4298 }
4299
4300 ht.pt.x = (short)LOWORD(lParam);
4301 ht.pt.y = (short)HIWORD(lParam);
4302
4303 TREEVIEW_HitTest(infoPtr, &ht);
4304
4305 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4306 {
4307 if (ht.hItem)
4308 {
4309 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4310 infoPtr->dropItem = ht.hItem;
4311 }
4312 }
4313 else
4314 {
4315 SetFocus(infoPtr->hwnd);
4316 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4317 {
4318 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4319 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4320 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4321 }
4322 }
4323
4324 return 0;
4325 }
4326
4327 static LRESULT
4328 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4329 {
4330 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4331 INT cx, cy;
4332 HDC hdc, htopdc;
4333 HWND hwtop;
4334 HBITMAP hbmp, hOldbmp;
4335 SIZE size;
4336 RECT rc;
4337 HFONT hOldFont;
4338
4339 TRACE("\n");
4340
4341 if (!(infoPtr->himlNormal))
4342 return 0;
4343
4344 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4345 return 0;
4346
4347 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4348
4349 hwtop = GetDesktopWindow();
4350 htopdc = GetDC(hwtop);
4351 hdc = CreateCompatibleDC(htopdc);
4352
4353 hOldFont = SelectObject(hdc, infoPtr->hFont);
4354
4355 if (dragItem->pszText)
4356 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4357 &size);
4358 else
4359 GetTextExtentPoint32A(hdc, "", 0, &size);
4360
4361 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4362 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4363 hOldbmp = SelectObject(hdc, hbmp);
4364
4365 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4366 size.cx += cx;
4367 if (cy > size.cy)
4368 size.cy = cy;
4369
4370 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4371 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4372 ILD_NORMAL);
4373
4374 /*
4375 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4376 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4377 */
4378
4379 /* draw item text */
4380
4381 SetRect(&rc, cx, 0, size.cx, size.cy);
4382
4383 if (dragItem->pszText)
4384 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4385 DT_LEFT);
4386
4387 SelectObject(hdc, hOldFont);
4388 SelectObject(hdc, hOldbmp);
4389
4390 ImageList_Add(infoPtr->dragList, hbmp, 0);
4391
4392 DeleteDC(hdc);
4393 DeleteObject(hbmp);
4394 ReleaseDC(hwtop, htopdc);
4395
4396 return (LRESULT)infoPtr->dragList;
4397 }
4398
4399 /* Selection ************************************************************/
4400
4401 static LRESULT
4402 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4403 INT cause)
4404 {
4405 TREEVIEW_ITEM *prevSelect;
4406
4407 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4408
4409 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state %d\n",
4410 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4411 newSelect ? newSelect->state : 0);
4412
4413 /* reset and redraw focusedItem if focusedItem was set so we don't */
4414 /* have to worry about the previously focused item when we set a new one */
4415 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4416 infoPtr->focusedItem = NULL;
4417
4418 switch (action)
4419 {
4420 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4421 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4422 /* Fall through */
4423 case TVGN_CARET:
4424 prevSelect = infoPtr->selectedItem;
4425
4426 if (prevSelect == newSelect) {
4427 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4428 break;
4429 }
4430
4431 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4432 TVN_SELCHANGINGW,
4433 cause,
4434 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4435 prevSelect,
4436 newSelect))
4437 return FALSE;
4438
4439 if (prevSelect)
4440 prevSelect->state &= ~TVIS_SELECTED;
4441 if (newSelect)
4442 newSelect->state |= TVIS_SELECTED;
4443
4444 infoPtr->selectedItem = newSelect;
4445
4446 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4447
4448 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4449 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4450
4451 TREEVIEW_SendTreeviewNotify(infoPtr,
4452 TVN_SELCHANGEDW,
4453 cause,
4454 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4455 prevSelect,
4456 newSelect);
4457 break;
4458
4459 case TVGN_DROPHILITE:
4460 prevSelect = infoPtr->dropItem;
4461
4462 if (prevSelect)
4463 prevSelect->state &= ~TVIS_DROPHILITED;
4464
4465 infoPtr->dropItem = newSelect;
4466
4467 if (newSelect)
4468 newSelect->state |= TVIS_DROPHILITED;
4469
4470 TREEVIEW_Invalidate(infoPtr, prevSelect);
4471 TREEVIEW_Invalidate(infoPtr, newSelect);
4472 break;
4473
4474 case TVGN_FIRSTVISIBLE:
4475 if (newSelect != NULL)
4476 {
4477 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4478 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4479 TREEVIEW_Invalidate(infoPtr, NULL);
4480 }
4481 break;
4482 }
4483
4484 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4485 return TRUE;
4486 }
4487
4488 /* FIXME: handle NM_KILLFOCUS etc */
4489 static LRESULT
4490 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4491 {
4492 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4493
4494 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4495 return FALSE;
4496
4497 if (item == infoPtr->selectedItem)
4498 return TRUE;
4499
4500 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4501
4502 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4503 return FALSE;
4504
4505 TREEVIEW_SingleExpand(infoPtr, selection, item);
4506
4507 return TRUE;
4508 }
4509
4510 /*************************************************************************
4511 * TREEVIEW_ProcessLetterKeys
4512 *
4513 * Processes keyboard messages generated by pressing the letter keys
4514 * on the keyboard.
4515 * What this does is perform a case insensitive search from the
4516 * current position with the following quirks:
4517 * - If two chars or more are pressed in quick succession we search
4518 * for the corresponding string (e.g. 'abc').
4519 * - If there is a delay we wipe away the current search string and
4520 * restart with just that char.
4521 * - If the user keeps pressing the same character, whether slowly or
4522 * fast, so that the search string is entirely composed of this
4523 * character ('aaaaa' for instance), then we search for first item
4524 * that starting with that character.
4525 * - If the user types the above character in quick succession, then
4526 * we must also search for the corresponding string ('aaaaa'), and
4527 * go to that string if there is a match.
4528 *
4529 * RETURNS
4530 *
4531 * Zero.
4532 *
4533 * BUGS
4534 *
4535 * - The current implementation has a list of characters it will
4536 * accept and it ignores everything else. In particular it will
4537 * ignore accentuated characters which seems to match what
4538 * Windows does. But I'm not sure it makes sense to follow
4539 * Windows there.
4540 * - We don't sound a beep when the search fails.
4541 * - The search should start from the focused item, not from the selected
4542 * item. One reason for this is to allow for multiple selections in trees.
4543 * But currently infoPtr->focusedItem does not seem very usable.
4544 *
4545 * SEE ALSO
4546 *
4547 * TREEVIEW_ProcessLetterKeys
4548 */
4549 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4550 {
4551 HTREEITEM nItem;
4552 HTREEITEM endidx,idx;
4553 TVITEMEXW item;
4554 WCHAR buffer[MAX_PATH];
4555 DWORD timestamp,elapsed;
4556
4557 /* simple parameter checking */
4558 if (!charCode || !keyData) return 0;
4559
4560 /* only allow the valid WM_CHARs through */
4561 if (!isalnum(charCode) &&
4562 charCode != '.' && charCode != '`' && charCode != '!' &&
4563 charCode != '@' && charCode != '#' && charCode != '$' &&
4564 charCode != '%' && charCode != '^' && charCode != '&' &&
4565 charCode != '*' && charCode != '(' && charCode != ')' &&
4566 charCode != '-' && charCode != '_' && charCode != '+' &&
4567 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4568 charCode != '}' && charCode != '[' && charCode != '{' &&
4569 charCode != '/' && charCode != '?' && charCode != '>' &&
4570 charCode != '<' && charCode != ',' && charCode != '~')
4571 return 0;
4572
4573 /* compute how much time elapsed since last keypress */
4574 timestamp = GetTickCount();
4575 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4576 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4577 } else {
4578 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4579 }
4580
4581 /* update the search parameters */
4582 infoPtr->lastKeyPressTimestamp=timestamp;
4583 if (elapsed < KEY_DELAY) {
4584 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4585 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4586 }
4587 if (infoPtr->charCode != charCode) {
4588 infoPtr->charCode=charCode=0;
4589 }
4590 } else {
4591 infoPtr->charCode=charCode;
4592 infoPtr->szSearchParam[0]=charCode;
4593 infoPtr->nSearchParamLength=1;
4594 /* Redundant with the 1 char string */
4595 charCode=0;
4596 }
4597
4598 /* and search from the current position */
4599 nItem=NULL;
4600 if (infoPtr->selectedItem != NULL) {
4601 endidx=infoPtr->selectedItem;
4602 /* if looking for single character match,
4603 * then we must always move forward
4604 */
4605 if (infoPtr->nSearchParamLength == 1)
4606 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4607 else
4608 idx=endidx;
4609 } else {
4610 endidx=NULL;
4611 idx=infoPtr->root->firstChild;
4612 }
4613 do {
4614 /* At the end point, sort out wrapping */
4615 if (idx == NULL) {
4616
4617 /* If endidx is null, stop at the last item (ie top to bottom) */
4618 if (endidx == NULL)
4619 break;
4620
4621 /* Otherwise, start again at the very beginning */
4622 idx=infoPtr->root->firstChild;
4623
4624 /* But if we are stopping on the first child, end now! */
4625 if (idx == endidx) break;
4626 }
4627
4628 /* get item */
4629 ZeroMemory(&item, sizeof(item));
4630 item.mask = TVIF_TEXT;
4631 item.hItem = idx;
4632 item.pszText = buffer;
4633 item.cchTextMax = sizeof(buffer);
4634 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4635
4636 /* check for a match */
4637 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4638 nItem=idx;
4639 break;
4640 } else if ( (charCode != 0) && (nItem == NULL) &&
4641 (nItem != infoPtr->selectedItem) &&
4642 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4643 /* This would work but we must keep looking for a longer match */
4644 nItem=idx;
4645 }
4646 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4647 } while (idx != endidx);
4648
4649 if (nItem != NULL) {
4650 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4651 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4652 }
4653 }
4654
4655 return 0;
4656 }
4657
4658 /* Scrolling ************************************************************/
4659
4660 static LRESULT
4661 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4662 {
4663 int viscount;
4664 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4665 HTREEITEM newFirstVisible = NULL;
4666 int visible_pos = -1;
4667
4668 if (!TREEVIEW_ValidItem(infoPtr, item))
4669 return FALSE;
4670
4671 if (!ISVISIBLE(item))
4672 {
4673 /* Expand parents as necessary. */
4674 HTREEITEM parent;
4675
4676 /* see if we are trying to ensure that root is visible */
4677 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4678 parent = item->parent;
4679 else
4680 parent = item; /* this item is the topmost item */
4681
4682 while (parent != infoPtr->root)
4683 {
4684 if (!(parent->state & TVIS_EXPANDED))
4685 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4686
4687 parent = parent->parent;
4688 }
4689 }
4690
4691 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4692
4693 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4694 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4695
4696 if (hasFirstVisible)
4697 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4698
4699 if (visible_pos < 0)
4700 {
4701 /* item is before the start of the list: put it at the top. */
4702 newFirstVisible = item;
4703 }
4704 else if (visible_pos >= viscount
4705 /* Sometimes, before we are displayed, GVC is 0, causing us to
4706 * spuriously scroll up. */
4707 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4708 {
4709 /* item is past the end of the list. */
4710 int scroll = visible_pos - viscount;
4711
4712 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4713 scroll + 1);
4714 }
4715
4716 if (bHScroll)
4717 {
4718 /* Scroll window so item's text is visible as much as possible */
4719 /* Calculation of amount of extra space is taken from EditLabel code */
4720 INT pos, x;
4721 TEXTMETRICW textMetric;
4722 HDC hdc = GetWindowDC(infoPtr->hwnd);
4723
4724 x = item->textWidth;
4725
4726 GetTextMetricsW(hdc, &textMetric);
4727 ReleaseDC(infoPtr->hwnd, hdc);
4728
4729 x += (textMetric.tmMaxCharWidth * 2);
4730 x = max(x, textMetric.tmMaxCharWidth * 3);
4731
4732 if (item->textOffset < 0)
4733 pos = item->textOffset;
4734 else if (item->textOffset + x > infoPtr->clientWidth)
4735 {
4736 if (x > infoPtr->clientWidth)
4737 pos = item->textOffset;
4738 else
4739 pos = item->textOffset + x - infoPtr->clientWidth;
4740 }
4741 else
4742 pos = 0;
4743
4744 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4745 }
4746
4747 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4748 {
4749 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4750
4751 return TRUE;
4752 }
4753
4754 return FALSE;
4755 }
4756
4757 static VOID
4758 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4759 TREEVIEW_ITEM *newFirstVisible,
4760 BOOL bUpdateScrollPos)
4761 {
4762 int gap_size;
4763
4764 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4765
4766 if (newFirstVisible != NULL)
4767 {
4768 /* Prevent an empty gap from appearing at the bottom... */
4769 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4770 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4771
4772 if (gap_size > 0)
4773 {
4774 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4775 -gap_size);
4776
4777 /* ... unless we just don't have enough items. */
4778 if (newFirstVisible == NULL)
4779 newFirstVisible = infoPtr->root->firstChild;
4780 }
4781 }
4782
4783 if (infoPtr->firstVisible != newFirstVisible)
4784 {
4785 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4786 {
4787 infoPtr->firstVisible = newFirstVisible;
4788 TREEVIEW_Invalidate(infoPtr, NULL);
4789 }
4790 else
4791 {
4792 TREEVIEW_ITEM *item;
4793 int scroll = infoPtr->uItemHeight *
4794 (infoPtr->firstVisible->visibleOrder
4795 - newFirstVisible->visibleOrder);
4796
4797 infoPtr->firstVisible = newFirstVisible;
4798
4799 for (item = infoPtr->root->firstChild; item != NULL;
4800 item = TREEVIEW_GetNextListItem(infoPtr, item))
4801 {
4802 item->rect.top += scroll;
4803 item->rect.bottom += scroll;
4804 }
4805
4806 if (bUpdateScrollPos)
4807 SetScrollPos(infoPtr->hwnd, SB_VERT,
4808 newFirstVisible->visibleOrder, TRUE);
4809
4810 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4811 }
4812 }
4813 }
4814
4815 /************************************************************************
4816 * VScroll is always in units of visible items. i.e. we always have a
4817 * visible item aligned to the top of the control. (Unless we have no
4818 * items at all.)
4819 */
4820 static LRESULT
4821 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4822 {
4823 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4824 TREEVIEW_ITEM *newFirstVisible = NULL;
4825
4826 int nScrollCode = LOWORD(wParam);
4827
4828 TRACE("wp %lx\n", wParam);
4829
4830 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4831 return 0;
4832
4833 if (!oldFirstVisible)
4834 {
4835 assert(infoPtr->root->firstChild == NULL);
4836 return 0;
4837 }
4838
4839 switch (nScrollCode)
4840 {
4841 case SB_TOP:
4842 newFirstVisible = infoPtr->root->firstChild;
4843 break;
4844
4845 case SB_BOTTOM:
4846 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4847 break;
4848
4849 case SB_LINEUP:
4850 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4851 break;
4852
4853 case SB_LINEDOWN:
4854 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4855 break;
4856
4857 case SB_PAGEUP:
4858 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4859 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4860 break;
4861
4862 case SB_PAGEDOWN:
4863 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4864 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4865 break;
4866
4867 case SB_THUMBTRACK:
4868 case SB_THUMBPOSITION:
4869 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4870 infoPtr->root->firstChild,
4871 (LONG)(SHORT)HIWORD(wParam));
4872 break;
4873
4874 case SB_ENDSCROLL:
4875 return 0;
4876 }
4877
4878 if (newFirstVisible != NULL)
4879 {
4880 if (newFirstVisible != oldFirstVisible)
4881 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4882 nScrollCode != SB_THUMBTRACK);
4883 else if (nScrollCode == SB_THUMBPOSITION)
4884 SetScrollPos(infoPtr->hwnd, SB_VERT,
4885 newFirstVisible->visibleOrder, TRUE);
4886 }
4887
4888 return 0;
4889 }
4890
4891 static LRESULT
4892 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4893 {
4894 int maxWidth;
4895 int scrollX = infoPtr->scrollX;
4896 int nScrollCode = LOWORD(wParam);
4897
4898 TRACE("wp %lx\n", wParam);
4899
4900 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4901 return FALSE;
4902
4903 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4904 /* shall never occur */
4905 if (maxWidth <= 0)
4906 {
4907 scrollX = 0;
4908 goto scroll;
4909 }
4910
4911 switch (nScrollCode)
4912 {
4913 case SB_LINELEFT:
4914 scrollX -= infoPtr->uItemHeight;
4915 break;
4916 case SB_LINERIGHT:
4917 scrollX += infoPtr->uItemHeight;
4918 break;
4919 case SB_PAGELEFT:
4920 scrollX -= infoPtr->clientWidth;
4921 break;
4922 case SB_PAGERIGHT:
4923 scrollX += infoPtr->clientWidth;
4924 break;
4925
4926 case SB_THUMBTRACK:
4927 case SB_THUMBPOSITION:
4928 scrollX = (int)(SHORT)HIWORD(wParam);
4929 break;
4930
4931 case SB_ENDSCROLL:
4932 return 0;
4933 }
4934
4935 if (scrollX > maxWidth)
4936 scrollX = maxWidth;
4937 else if (scrollX < 0)
4938 scrollX = 0;
4939
4940 scroll:
4941 if (scrollX != infoPtr->scrollX)
4942 {
4943 TREEVIEW_ITEM *item;
4944 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4945
4946 for (item = infoPtr->root->firstChild; item != NULL;
4947 item = TREEVIEW_GetNextListItem(infoPtr, item))
4948 {
4949 item->linesOffset += scroll_pixels;
4950 item->stateOffset += scroll_pixels;
4951 item->imageOffset += scroll_pixels;
4952 item->textOffset += scroll_pixels;
4953 }
4954
4955 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4956 infoPtr->scrollX = scrollX;
4957 UpdateWindow(infoPtr->hwnd);
4958 }
4959
4960 if (nScrollCode != SB_THUMBTRACK)
4961 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4962
4963 return 0;
4964 }
4965
4966 static LRESULT
4967 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4968 {
4969 short wheelDelta;
4970 UINT pulScrollLines = 3;
4971
4972 if (wParam & (MK_SHIFT | MK_CONTROL))
4973 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4974
4975 if (infoPtr->firstVisible == NULL)
4976 return TRUE;
4977
4978 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4979
4980 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4981 /* if scrolling changes direction, ignore left overs */
4982 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
4983 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
4984 infoPtr->wheelRemainder += wheelDelta;
4985 else
4986 infoPtr->wheelRemainder = wheelDelta;
4987
4988 if (infoPtr->wheelRemainder && pulScrollLines)
4989 {
4990 int newDy;
4991 int maxDy;
4992 int lineScroll;
4993
4994 lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
4995 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
4996
4997 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
4998 maxDy = infoPtr->maxVisibleOrder;
4999
5000 if (newDy > maxDy)
5001 newDy = maxDy;
5002
5003 if (newDy < 0)
5004 newDy = 0;
5005
5006 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5007 }
5008 return TRUE;
5009 }
5010
5011 /* Create/Destroy *******************************************************/
5012
5013 static LRESULT
5014 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5015 {
5016 RECT rcClient;
5017 TREEVIEW_INFO *infoPtr;
5018 LOGFONTW lf;
5019
5020 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5021
5022 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5023
5024 if (infoPtr == NULL)
5025 {
5026 ERR("could not allocate info memory!\n");
5027 return 0;
5028 }
5029
5030 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5031
5032 infoPtr->hwnd = hwnd;
5033 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5034 infoPtr->Timer = 0;
5035 infoPtr->uNumItems = 0;
5036 infoPtr->cdmode = 0;
5037 infoPtr->uScrollTime = 300; /* milliseconds */
5038 infoPtr->bRedraw = TRUE;
5039
5040 GetClientRect(hwnd, &rcClient);
5041
5042 /* No scroll bars yet. */
5043 infoPtr->clientWidth = rcClient.right;
5044 infoPtr->clientHeight = rcClient.bottom;
5045 infoPtr->uInternalStatus = 0;
5046
5047 infoPtr->treeWidth = 0;
5048 infoPtr->treeHeight = 0;
5049
5050 infoPtr->uIndent = MINIMUM_INDENT;
5051 infoPtr->selectedItem = NULL;
5052 infoPtr->focusedItem = NULL;
5053 infoPtr->hotItem = NULL;
5054 infoPtr->editItem = NULL;
5055 infoPtr->firstVisible = NULL;
5056 infoPtr->maxVisibleOrder = 0;
5057 infoPtr->dropItem = NULL;
5058 infoPtr->insertMarkItem = NULL;
5059 infoPtr->insertBeforeorAfter = 0;
5060 /* dragList */
5061
5062 infoPtr->scrollX = 0;
5063 infoPtr->wheelRemainder = 0;
5064
5065 infoPtr->clrBk = CLR_NONE; /* use system color */
5066 infoPtr->clrText = CLR_NONE; /* use system color */
5067 infoPtr->clrLine = CLR_DEFAULT;
5068 infoPtr->clrInsertMark = CLR_DEFAULT;
5069
5070 /* hwndToolTip */
5071
5072 infoPtr->hwndEdit = NULL;
5073 infoPtr->wpEditOrig = NULL;
5074 infoPtr->bIgnoreEditKillFocus = FALSE;
5075 infoPtr->bLabelChanged = FALSE;
5076
5077 infoPtr->himlNormal = NULL;
5078 infoPtr->himlState = NULL;
5079 infoPtr->normalImageWidth = 0;
5080 infoPtr->normalImageHeight = 0;
5081 infoPtr->stateImageWidth = 0;
5082 infoPtr->stateImageHeight = 0;
5083
5084 infoPtr->items = DPA_Create(16);
5085
5086 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5087 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5088 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5089 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5090 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5091 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5092
5093 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5094
5095 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5096 infoPtr->root->state = TVIS_EXPANDED;
5097 infoPtr->root->iLevel = -1;
5098 infoPtr->root->visibleOrder = -1;
5099
5100 infoPtr->hwndNotify = lpcs->hwndParent;
5101 infoPtr->hwndToolTip = 0;
5102
5103 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5104 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5105
5106 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5107 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5108 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5109 hwnd, 0, 0, 0);
5110
5111 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5112 ShowScrollBar(hwnd, SB_VERT, FALSE);
5113 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5114
5115 OpenThemeData (hwnd, themeClass);
5116
5117 return 0;
5118 }
5119
5120
5121 static LRESULT
5122 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5123 {
5124 TRACE("\n");
5125
5126 /* free item data */
5127 TREEVIEW_RemoveTree(infoPtr);
5128 /* root isn't freed with other items */
5129 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5130 DPA_Destroy(infoPtr->items);
5131
5132 /* tool tip is automatically destroyed: we are its owner */
5133
5134 /* Restore original wndproc */
5135 if (infoPtr->hwndEdit)
5136 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5137 (DWORD_PTR)infoPtr->wpEditOrig);
5138
5139 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5140
5141 /* Deassociate treeview from the window before doing anything drastic. */
5142 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5143
5144 DeleteObject(infoPtr->hDefaultFont);
5145 DeleteObject(infoPtr->hBoldFont);
5146 DeleteObject(infoPtr->hUnderlineFont);
5147 DeleteObject(infoPtr->hBoldUnderlineFont);
5148 Free(infoPtr);
5149
5150 return 0;
5151 }
5152
5153 /* Miscellaneous Messages ***********************************************/
5154
5155 static LRESULT
5156 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5157 {
5158 static const struct
5159 {
5160 unsigned char code;
5161 }
5162 scroll[] =
5163 {
5164 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5165 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5166 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5167 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5168 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5169 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5170 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5171 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5172 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5173 #undef SCROLL_ENTRY
5174 };
5175
5176 if (key >= VK_PRIOR && key <= VK_DOWN)
5177 {
5178 unsigned char code = scroll[key - VK_PRIOR].code;
5179
5180 (((code & (1 << 7)) == (SB_HORZ << 7))
5181 ? TREEVIEW_HScroll
5182 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5183 }
5184
5185 return 0;
5186 }
5187
5188 /************************************************************************
5189 * TREEVIEW_KeyDown
5190 *
5191 * VK_UP Move selection to the previous non-hidden item.
5192 * VK_DOWN Move selection to the next non-hidden item.
5193 * VK_HOME Move selection to the first item.
5194 * VK_END Move selection to the last item.
5195 * VK_LEFT If expanded then collapse, otherwise move to parent.
5196 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5197 * VK_ADD Expand.
5198 * VK_SUBTRACT Collapse.
5199 * VK_MULTIPLY Expand all.
5200 * VK_PRIOR Move up GetVisibleCount items.
5201 * VK_NEXT Move down GetVisibleCount items.
5202 * VK_BACK Move to parent.
5203 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5204 */
5205 static LRESULT
5206 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5207 {
5208 /* If it is non-NULL and different, it will be selected and visible. */
5209 TREEVIEW_ITEM *newSelection = NULL;
5210 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5211 NMTVKEYDOWN nmkeydown;
5212
5213 TRACE("%lx\n", wParam);
5214
5215 nmkeydown.wVKey = wParam;
5216 nmkeydown.flags = 0;
5217 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5218
5219 if (prevItem == NULL)
5220 return FALSE;
5221
5222 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5223 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5224
5225 switch (wParam)
5226 {
5227 case VK_UP:
5228 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5229 if (!newSelection)
5230 newSelection = infoPtr->root->firstChild;
5231 break;
5232
5233 case VK_DOWN:
5234 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5235 break;
5236
5237 case VK_RETURN:
5238 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5239 break;
5240
5241 case VK_HOME:
5242 newSelection = infoPtr->root->firstChild;
5243 break;
5244
5245 case VK_END:
5246 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5247 break;
5248
5249 case VK_LEFT:
5250 if (prevItem->state & TVIS_EXPANDED)
5251 {
5252 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5253 }
5254 else if (prevItem->parent != infoPtr->root)
5255 {
5256 newSelection = prevItem->parent;
5257 }
5258 break;
5259
5260 case VK_RIGHT:
5261 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5262 {
5263 if (!(prevItem->state & TVIS_EXPANDED))
5264 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5265 else
5266 {
5267 newSelection = prevItem->firstChild;
5268 }
5269 }
5270
5271 break;
5272
5273 case VK_MULTIPLY:
5274 TREEVIEW_ExpandAll(infoPtr, prevItem);
5275 break;
5276
5277 case VK_ADD:
5278 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5279 break;
5280
5281 case VK_SUBTRACT:
5282 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5283 break;
5284
5285 case VK_PRIOR:
5286 newSelection
5287 = TREEVIEW_GetListItem(infoPtr, prevItem,
5288 -TREEVIEW_GetVisibleCount(infoPtr));
5289 break;
5290
5291 case VK_NEXT:
5292 newSelection
5293 = TREEVIEW_GetListItem(infoPtr, prevItem,
5294 TREEVIEW_GetVisibleCount(infoPtr));
5295 break;
5296
5297 case VK_BACK:
5298 newSelection = prevItem->parent;
5299 if (newSelection == infoPtr->root)
5300 newSelection = NULL;
5301 break;
5302
5303 case VK_SPACE:
5304 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5305 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5306 break;
5307 }
5308
5309 if (newSelection && newSelection != prevItem)
5310 {
5311 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5312 TVC_BYKEYBOARD))
5313 {
5314 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5315 }
5316 }
5317
5318 return FALSE;
5319 }
5320
5321 static LRESULT
5322 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5323 {
5324 /* remove hot effect from item */
5325 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5326 infoPtr->hotItem = NULL;
5327
5328 return 0;
5329 }
5330
5331 static LRESULT
5332 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5333 {
5334 POINT pt;
5335 TRACKMOUSEEVENT trackinfo;
5336 TREEVIEW_ITEM * item;
5337
5338 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5339
5340 /* fill in the TRACKMOUSEEVENT struct */
5341 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5342 trackinfo.dwFlags = TME_QUERY;
5343 trackinfo.hwndTrack = infoPtr->hwnd;
5344
5345 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5346 _TrackMouseEvent(&trackinfo);
5347
5348 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5349 if(!(trackinfo.dwFlags & TME_LEAVE))
5350 {
5351 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5352 trackinfo.hwndTrack = infoPtr->hwnd;
5353 /* do it as fast as possible, minimal systimer latency will be used */
5354 trackinfo.dwHoverTime = 1;
5355
5356 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5357 /* and can properly deactivate the hot item */
5358 _TrackMouseEvent(&trackinfo);
5359 }
5360
5361 pt.x = (short)LOWORD(lParam);
5362 pt.y = (short)HIWORD(lParam);
5363
5364 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5365
5366 if (item != infoPtr->hotItem)
5367 {
5368 /* redraw old hot item */
5369 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5370 infoPtr->hotItem = item;
5371 /* redraw new hot item */
5372 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5373 }
5374
5375 return 0;
5376 }
5377
5378 /* Draw themed border */
5379 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5380 {
5381 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5382 HDC dc;
5383 RECT r;
5384 HRGN cliprgn;
5385 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5386 cyEdge = GetSystemMetrics (SM_CYEDGE);
5387
5388 if (!theme)
5389 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5390
5391 GetWindowRect(infoPtr->hwnd, &r);
5392
5393 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5394 r.right - cxEdge, r.bottom - cyEdge);
5395 if (region != (HRGN)1)
5396 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5397 OffsetRect(&r, -r.left, -r.top);
5398
5399 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5400 OffsetRect(&r, -r.left, -r.top);
5401
5402 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5403 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5404 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5405 ReleaseDC(infoPtr->hwnd, dc);
5406
5407 /* Call default proc to get the scrollbars etc. painted */
5408 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5409
5410 return TRUE;
5411 }
5412
5413 static LRESULT
5414 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5415 {
5416 LPNMHDR lpnmh = (LPNMHDR)lParam;
5417
5418 if (lpnmh->code == PGN_CALCSIZE) {
5419 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5420
5421 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5422 lppgc->iWidth = infoPtr->treeWidth;
5423 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5424 infoPtr->treeWidth, infoPtr->clientWidth);
5425 }
5426 else {
5427 lppgc->iHeight = infoPtr->treeHeight;
5428 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5429 infoPtr->treeHeight, infoPtr->clientHeight);
5430 }
5431 return 0;
5432 }
5433 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5434 }
5435
5436 static LRESULT
5437 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5438 {
5439 if (wParam == SIZE_RESTORED)
5440 {
5441 infoPtr->clientWidth = (short)LOWORD(lParam);
5442 infoPtr->clientHeight = (short)HIWORD(lParam);
5443
5444 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5445 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5446 TREEVIEW_UpdateScrollBars(infoPtr);
5447 }
5448 else
5449 {
5450 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5451 }
5452
5453 TREEVIEW_Invalidate(infoPtr, NULL);
5454 return 0;
5455 }
5456
5457 static LRESULT
5458 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5459 {
5460 TRACE("(%lx %lx)\n", wParam, lParam);
5461
5462 if (wParam == GWL_STYLE)
5463 {
5464 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5465
5466 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5467 {
5468 if (dwNewStyle & TVS_CHECKBOXES)
5469 {
5470 TREEVIEW_InitCheckboxes(infoPtr);
5471 TRACE("checkboxes enabled\n");
5472
5473 /* set all items to state image index 1 */
5474 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5475 }
5476 else
5477 {
5478 FIXME("tried to disable checkboxes\n");
5479 }
5480 }
5481
5482 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5483 {
5484 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5485 {
5486 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5487 TRACE("tooltips enabled\n");
5488 }
5489 else
5490 {
5491 DestroyWindow(infoPtr->hwndToolTip);
5492 infoPtr->hwndToolTip = 0;
5493 TRACE("tooltips disabled\n");
5494 }
5495 }
5496
5497 infoPtr->dwStyle = dwNewStyle;
5498 }
5499
5500 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5501 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5502 TREEVIEW_UpdateScrollBars(infoPtr);
5503 TREEVIEW_Invalidate(infoPtr, NULL);
5504
5505 return 0;
5506 }
5507
5508 static LRESULT
5509 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5510 {
5511 POINT pt;
5512 TREEVIEW_ITEM * item;
5513 NMMOUSE nmmouse;
5514
5515 GetCursorPos(&pt);
5516 ScreenToClient(infoPtr->hwnd, &pt);
5517
5518 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5519
5520 memset(&nmmouse, 0, sizeof(nmmouse));
5521 if (item)
5522 {
5523 nmmouse.dwItemSpec = (DWORD_PTR)item;
5524 nmmouse.dwItemData = item->lParam;
5525 }
5526 nmmouse.pt.x = 0;
5527 nmmouse.pt.y = 0;
5528 nmmouse.dwHitInfo = lParam;
5529 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5530 return 0;
5531
5532 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5533 {
5534 SetCursor(infoPtr->hcurHand);
5535 return 0;
5536 }
5537 else
5538 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5539 }
5540
5541 static LRESULT
5542 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5543 {
5544 TRACE("\n");
5545
5546 if (!infoPtr->selectedItem)
5547 {
5548 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5549 TVC_UNKNOWN);
5550 }
5551
5552 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5553 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5554 return 0;
5555 }
5556
5557 static LRESULT
5558 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5559 {
5560 TRACE("\n");
5561
5562 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5563 UpdateWindow(infoPtr->hwnd);
5564 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5565 return 0;
5566 }
5567
5568 /* update theme after a WM_THEMECHANGED message */
5569 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5570 {
5571 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5572 CloseThemeData (theme);
5573 OpenThemeData (infoPtr->hwnd, themeClass);
5574 return 0;
5575 }
5576
5577
5578 static LRESULT WINAPI
5579 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5580 {
5581 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5582
5583 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5584
5585 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5586 else
5587 {
5588 if (uMsg == WM_CREATE)
5589 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5590 else
5591 goto def;
5592 }
5593
5594 switch (uMsg)
5595 {
5596 case TVM_CREATEDRAGIMAGE:
5597 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5598
5599 case TVM_DELETEITEM:
5600 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5601
5602 case TVM_EDITLABELA:
5603 case TVM_EDITLABELW:
5604 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5605
5606 case TVM_ENDEDITLABELNOW:
5607 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5608
5609 case TVM_ENSUREVISIBLE:
5610 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5611
5612 case TVM_EXPAND:
5613 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5614
5615 case TVM_GETBKCOLOR:
5616 return TREEVIEW_GetBkColor(infoPtr);
5617
5618 case TVM_GETCOUNT:
5619 return TREEVIEW_GetCount(infoPtr);
5620
5621 case TVM_GETEDITCONTROL:
5622 return TREEVIEW_GetEditControl(infoPtr);
5623
5624 case TVM_GETIMAGELIST:
5625 return TREEVIEW_GetImageList(infoPtr, wParam);
5626
5627 case TVM_GETINDENT:
5628 return TREEVIEW_GetIndent(infoPtr);
5629
5630 case TVM_GETINSERTMARKCOLOR:
5631 return TREEVIEW_GetInsertMarkColor(infoPtr);
5632
5633 case TVM_GETISEARCHSTRINGA:
5634 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5635 return 0;
5636
5637 case TVM_GETISEARCHSTRINGW:
5638 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5639 return 0;
5640
5641 case TVM_GETITEMA:
5642 case TVM_GETITEMW:
5643 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5644 uMsg == TVM_GETITEMW);
5645 case TVM_GETITEMHEIGHT:
5646 return TREEVIEW_GetItemHeight(infoPtr);
5647
5648 case TVM_GETITEMRECT:
5649 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5650
5651 case TVM_GETITEMSTATE:
5652 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5653
5654 case TVM_GETLINECOLOR:
5655 return TREEVIEW_GetLineColor(infoPtr);
5656
5657 case TVM_GETNEXTITEM:
5658 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5659
5660 case TVM_GETSCROLLTIME:
5661 return TREEVIEW_GetScrollTime(infoPtr);
5662
5663 case TVM_GETTEXTCOLOR:
5664 return TREEVIEW_GetTextColor(infoPtr);
5665
5666 case TVM_GETTOOLTIPS:
5667 return TREEVIEW_GetToolTips(infoPtr);
5668
5669 case TVM_GETUNICODEFORMAT:
5670 return TREEVIEW_GetUnicodeFormat(infoPtr);
5671
5672 case TVM_GETVISIBLECOUNT:
5673 return TREEVIEW_GetVisibleCount(infoPtr);
5674
5675 case TVM_HITTEST:
5676 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5677
5678 case TVM_INSERTITEMA:
5679 case TVM_INSERTITEMW:
5680 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5681 uMsg == TVM_INSERTITEMW);
5682 case TVM_SELECTITEM:
5683 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5684
5685 case TVM_SETBKCOLOR:
5686 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5687
5688 case TVM_SETIMAGELIST:
5689 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5690
5691 case TVM_SETINDENT:
5692 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5693
5694 case TVM_SETINSERTMARK:
5695 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5696
5697 case TVM_SETINSERTMARKCOLOR:
5698 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5699
5700 case TVM_SETITEMA:
5701 case TVM_SETITEMW:
5702 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5703 uMsg == TVM_SETITEMW);
5704 case TVM_SETLINECOLOR:
5705 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5706
5707 case TVM_SETITEMHEIGHT:
5708 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5709
5710 case TVM_SETSCROLLTIME:
5711 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5712
5713 case TVM_SETTEXTCOLOR:
5714 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5715
5716 case TVM_SETTOOLTIPS:
5717 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5718
5719 case TVM_SETUNICODEFORMAT:
5720 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5721
5722 case TVM_SORTCHILDREN:
5723 return TREEVIEW_SortChildren(infoPtr, lParam);
5724
5725 case TVM_SORTCHILDRENCB:
5726 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5727
5728 case WM_CHAR:
5729 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5730
5731 case WM_COMMAND:
5732 return TREEVIEW_Command(infoPtr, wParam, lParam);
5733
5734 case WM_DESTROY:
5735 return TREEVIEW_Destroy(infoPtr);
5736
5737 /* WM_ENABLE */
5738
5739 case WM_ERASEBKGND:
5740 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5741
5742 case WM_GETDLGCODE:
5743 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5744
5745 case WM_GETFONT:
5746 return TREEVIEW_GetFont(infoPtr);
5747
5748 case WM_HSCROLL:
5749 return TREEVIEW_HScroll(infoPtr, wParam);
5750
5751 case WM_KEYDOWN:
5752 return TREEVIEW_KeyDown(infoPtr, wParam);
5753
5754 case WM_KILLFOCUS:
5755 return TREEVIEW_KillFocus(infoPtr);
5756
5757 case WM_LBUTTONDBLCLK:
5758 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5759
5760 case WM_LBUTTONDOWN:
5761 return TREEVIEW_LButtonDown(infoPtr, lParam);
5762
5763 /* WM_MBUTTONDOWN */
5764
5765 case WM_MOUSELEAVE:
5766 return TREEVIEW_MouseLeave(infoPtr);
5767
5768 case WM_MOUSEMOVE:
5769 return TREEVIEW_MouseMove(infoPtr, lParam);
5770
5771 case WM_NCLBUTTONDOWN:
5772 if (infoPtr->hwndEdit)
5773 SetFocus(infoPtr->hwnd);
5774 goto def;
5775
5776 case WM_NCPAINT:
5777 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5778
5779 case WM_NOTIFY:
5780 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5781
5782 case WM_NOTIFYFORMAT:
5783 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5784
5785 case WM_PRINTCLIENT:
5786 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5787
5788 case WM_PAINT:
5789 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5790
5791 case WM_RBUTTONDOWN:
5792 return TREEVIEW_RButtonDown(infoPtr, lParam);
5793
5794 case WM_SETCURSOR:
5795 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5796
5797 case WM_SETFOCUS:
5798 return TREEVIEW_SetFocus(infoPtr);
5799
5800 case WM_SETFONT:
5801 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5802
5803 case WM_SETREDRAW:
5804 return TREEVIEW_SetRedraw(infoPtr, wParam);
5805
5806 case WM_SIZE:
5807 return TREEVIEW_Size(infoPtr, wParam, lParam);
5808
5809 case WM_STYLECHANGED:
5810 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5811
5812 case WM_SYSCOLORCHANGE:
5813 COMCTL32_RefreshSysColors();
5814 return 0;
5815
5816 /* WM_SYSKEYDOWN */
5817
5818 case WM_TIMER:
5819 return TREEVIEW_HandleTimer(infoPtr, wParam);
5820
5821 case WM_THEMECHANGED:
5822 return TREEVIEW_ThemeChanged (infoPtr);
5823
5824 case WM_VSCROLL:
5825 return TREEVIEW_VScroll(infoPtr, wParam);
5826
5827 /* WM_WININICHANGE */
5828
5829 case WM_MOUSEWHEEL:
5830 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5831
5832 case WM_DRAWITEM:
5833 TRACE("drawItem\n");
5834 goto def;
5835
5836 default:
5837 /* This mostly catches MFC and Delphi messages. :( */
5838 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5839 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5840 def:
5841 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5842 }
5843 }
5844
5845
5846 /* Class Registration ***************************************************/
5847
5848 VOID
5849 TREEVIEW_Register(void)
5850 {
5851 WNDCLASSW wndClass;
5852
5853 TRACE("\n");
5854
5855 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5856 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5857 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5858 wndClass.cbClsExtra = 0;
5859 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5860
5861 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5862 wndClass.hbrBackground = 0;
5863 wndClass.lpszClassName = WC_TREEVIEWW;
5864
5865 RegisterClassW(&wndClass);
5866 }
5867
5868
5869 VOID
5870 TREEVIEW_Unregister(void)
5871 {
5872 UnregisterClassW(WC_TREEVIEWW, NULL);
5873 }
5874
5875
5876 /* Tree Verification ****************************************************/
5877
5878 static inline void
5879 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5880
5881 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5882 const TREEVIEW_ITEM *item)
5883 {
5884 assert(infoPtr != NULL);
5885 assert(item != NULL);
5886
5887 /* both NULL, or both non-null */
5888 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5889
5890 assert(item->firstChild != item);
5891 assert(item->lastChild != item);
5892
5893 if (item->firstChild)
5894 {
5895 assert(item->firstChild->parent == item);
5896 assert(item->firstChild->prevSibling == NULL);
5897 }
5898
5899 if (item->lastChild)
5900 {
5901 assert(item->lastChild->parent == item);
5902 assert(item->lastChild->nextSibling == NULL);
5903 }
5904
5905 assert(item->nextSibling != item);
5906 if (item->nextSibling)
5907 {
5908 assert(item->nextSibling->parent == item->parent);
5909 assert(item->nextSibling->prevSibling == item);
5910 }
5911
5912 assert(item->prevSibling != item);
5913 if (item->prevSibling)
5914 {
5915 assert(item->prevSibling->parent == item->parent);
5916 assert(item->prevSibling->nextSibling == item);
5917 }
5918 }
5919
5920 static inline void
5921 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5922 {
5923 assert(item != NULL);
5924
5925 assert(item->parent != NULL);
5926 assert(item->parent != item);
5927 assert(item->iLevel == item->parent->iLevel + 1);
5928
5929 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5930
5931 TREEVIEW_VerifyItemCommon(infoPtr, item);
5932
5933 TREEVIEW_VerifyChildren(infoPtr, item);
5934 }
5935
5936 static inline void
5937 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5938 {
5939 const TREEVIEW_ITEM *child;
5940 assert(item != NULL);
5941
5942 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5943 TREEVIEW_VerifyItem(infoPtr, child);
5944 }
5945
5946 static inline void
5947 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5948 {
5949 TREEVIEW_ITEM *root = infoPtr->root;
5950
5951 assert(root != NULL);
5952 assert(root->iLevel == -1);
5953 assert(root->parent == NULL);
5954 assert(root->prevSibling == NULL);
5955
5956 TREEVIEW_VerifyItemCommon(infoPtr, root);
5957
5958 TREEVIEW_VerifyChildren(infoPtr, root);
5959 }
5960
5961 static void
5962 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5963 {
5964 if (!TRACE_ON(treeview)) return;
5965
5966 assert(infoPtr != NULL);
5967 TREEVIEW_VerifyRoot(infoPtr);
5968 }
Windows API implementation