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oleaut32/tests: Fix the FSF address.
[wine/multimedia.git] / dlls / comctl32 / treeview.c
blob587a3cf8ab382f6e9f5ed28117064d59acd8e5fd
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: All items always! have valid (allocated) pszText field.
27 * If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
28 * of size TEXT_CALLBACK_SIZE in DoSetItem.
29 * We use callbackMask to keep track of fields to be updated.
30 *
31 * TODO:
32 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
33 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
34 *
35 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
36 *
37 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54 #define NONAMELESSSTRUCT
55 #include "windef.h"
56 #include "winbase.h"
57 #include "wingdi.h"
58 #include "winuser.h"
59 #include "winnls.h"
60 #include "commctrl.h"
61 #include "comctl32.h"
62 #include "uxtheme.h"
63 #include "tmschema.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66
67 /* internal structures */
68
69 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
70 {
71 UINT callbackMask;
72 UINT state;
73 UINT stateMask;
74 LPWSTR pszText;
75 int cchTextMax;
76 int iImage;
77 int iSelectedImage;
78 int cChildren;
79 LPARAM lParam;
80 int iIntegral; /* item height multiplier (1 is normal) */
81 int iLevel; /* indentation level:0=root level */
82 HTREEITEM parent; /* handle to parent or 0 if at root */
83 HTREEITEM firstChild; /* handle to first child or 0 if no child */
84 HTREEITEM lastChild;
85 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
86 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
87 RECT rect;
88 LONG linesOffset;
89 LONG stateOffset;
90 LONG imageOffset;
91 LONG textOffset;
92 LONG textWidth; /* horizontal text extent for pszText */
93 LONG visibleOrder; /* visible ordering, 0 is first visible item */
94 } TREEVIEW_ITEM;
95
96
97 typedef struct tagTREEVIEW_INFO
98 {
99 HWND hwnd;
100 HWND hwndNotify; /* Owner window to send notifications to */
101 DWORD dwStyle;
102 HTREEITEM root;
103 UINT uInternalStatus;
104 INT Timer;
105 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
106 INT cdmode; /* last custom draw setting */
107 UINT uScrollTime; /* max. time for scrolling in milliseconds */
108 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
109
110 UINT uItemHeight; /* item height */
111 BOOL bHeightSet;
112
113 LONG clientWidth; /* width of control window */
114 LONG clientHeight; /* height of control window */
115
116 LONG treeWidth; /* width of visible tree items */
117 LONG treeHeight; /* height of visible tree items */
118
119 UINT uIndent; /* indentation in pixels */
120 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
121 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
122 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
123
124 HTREEITEM firstVisible; /* handle to first visible item */
125 LONG maxVisibleOrder;
126 HTREEITEM dropItem; /* handle to item selected by drag cursor */
127 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
128 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
129 HIMAGELIST dragList; /* Bitmap of dragged item */
130 LONG scrollX;
131 COLORREF clrBk;
132 COLORREF clrText;
133 COLORREF clrLine;
134 COLORREF clrInsertMark;
135 HFONT hFont;
136 HFONT hDefaultFont;
137 HFONT hBoldFont;
138 HFONT hUnderlineFont;
139 HCURSOR hcurHand;
140 HWND hwndToolTip;
141
142 HWND hwndEdit;
143 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
144 BOOL bIgnoreEditKillFocus;
145 BOOL bLabelChanged;
146
147 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
148 HIMAGELIST himlNormal;
149 int normalImageHeight;
150 int normalImageWidth;
151 HIMAGELIST himlState;
152 int stateImageHeight;
153 int stateImageWidth;
154 HDPA items;
155
156 DWORD lastKeyPressTimestamp; /* Added */
157 WPARAM charCode; /* Added */
158 INT nSearchParamLength; /* Added */
159 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
160 } TREEVIEW_INFO;
161
162
163 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
164 #define KEY_DELAY 450
165
166 /* bitflags for infoPtr->uInternalStatus */
167
168 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
169 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
170 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
171 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
172 #define TV_RDRAG 0x10 /* dito Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(TREEVIEW_INFO *, TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(TREEVIEW_INFO *, LPPOINT);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 assert(infoPtr != NULL);
245
246 return DPA_GetPtrIndex(infoPtr->items, handle);
247 }
248
249 /* Checks if item has changed and needs to be redrawn */
250 static inline BOOL item_changed (TREEVIEW_ITEM *tiOld, TREEVIEW_ITEM *tiNew, LPTVITEMEXW tvChange)
251 {
252 /* Number of children has changed */
253 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
254 return TRUE;
255
256 /* Image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
258 tiNew->iImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Selected image has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
263 tiNew->iSelectedImage != I_IMAGECALLBACK)
264 return TRUE;
265
266 /* Text has changed and it's not a callback */
267 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
268 tiNew->pszText != LPSTR_TEXTCALLBACKW)
269 return TRUE;
270
271 /* Indent has changed */
272 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
273 return TRUE;
274
275 /* Item state has changed */
276 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
277 return TRUE;
278
279 return FALSE;
280 }
281
282 /***************************************************************************
283 * This method checks that handle is an item for this tree.
284 */
285 static BOOL
286 TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
287 {
288 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
289 {
290 TRACE("invalid item %p\n", handle);
291 return FALSE;
292 }
293 else
294 return TRUE;
295 }
296
297 static HFONT
298 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
299 {
300 LOGFONTW font;
301
302 GetObjectW(hOrigFont, sizeof(font), &font);
303 font.lfWeight = FW_BOLD;
304 return CreateFontIndirectW(&font);
305 }
306
307 static HFONT
308 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
309 {
310 LOGFONTW font;
311
312 GetObjectW(hOrigFont, sizeof(font), &font);
313 font.lfUnderline = TRUE;
314 return CreateFontIndirectW(&font);
315 }
316
317 static inline HFONT
318 TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
319 {
320 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
321 return infoPtr->hUnderlineFont;
322 if (item->state & TVIS_BOLD)
323 return infoPtr->hBoldFont;
324 return infoPtr->hFont;
325 }
326
327 /* for trace/debugging purposes only */
328 static const char *
329 TREEVIEW_ItemName(TREEVIEW_ITEM *item)
330 {
331 if (item == NULL) return "<null item>";
332 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
333 if (item->pszText == NULL) return "<null>";
334 return debugstr_w(item->pszText);
335 }
336
337 /* An item is not a child of itself. */
338 static BOOL
339 TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
340 {
341 do
342 {
343 child = child->parent;
344 if (child == parent) return TRUE;
345 } while (child != NULL);
346
347 return FALSE;
348 }
349
350
351 /* Tree Traversal *******************************************************/
352
353 /***************************************************************************
354 * This method returns the last expanded sibling or child child item
355 * of a tree node
356 */
357 static TREEVIEW_ITEM *
358 TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
359 {
360 if (!wineItem)
361 return NULL;
362
363 while (wineItem->lastChild)
364 {
365 if (wineItem->state & TVIS_EXPANDED)
366 wineItem = wineItem->lastChild;
367 else
368 break;
369 }
370
371 if (wineItem == infoPtr->root)
372 return NULL;
373
374 return wineItem;
375 }
376
377 /***************************************************************************
378 * This method returns the previous non-hidden item in the list not
379 * considering the tree hierarchy.
380 */
381 static TREEVIEW_ITEM *
382 TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
383 {
384 if (tvItem->prevSibling)
385 {
386 /* This item has a prevSibling, get the last item in the sibling's tree. */
387 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
388
389 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
390 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
391 else
392 return upItem;
393 }
394 else
395 {
396 /* this item does not have a prevSibling, get the parent */
397 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
398 }
399 }
400
401
402 /***************************************************************************
403 * This method returns the next physical item in the treeview not
404 * considering the tree hierarchy.
405 */
406 static TREEVIEW_ITEM *
407 TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
408 {
409 assert(tvItem != NULL);
410
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(wineItem != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return wineItem;
467
468 do
469 {
470 previousItem = wineItem;
471 wineItem = next_item(infoPtr, wineItem);
472
473 } while (--count && wineItem != NULL);
474
475
476 return wineItem ? wineItem : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static LRESULT
503 TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
504 {
505 TRACE("wParam=%d, lParam=%ld\n", wParam, lParam);
506 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
507 }
508
509 static BOOL
510 TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
511 {
512 NMHDR nmhdr;
513 HWND hwnd = infoPtr->hwnd;
514
515 TRACE("%d\n", code);
516 nmhdr.hwndFrom = hwnd;
517 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
518 nmhdr.code = get_notifycode(infoPtr, code);
519
520 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
521 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 HWND hwnd = infoPtr->hwnd;
562 NMTREEVIEWW nmhdr;
563 BOOL ret;
564
565 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
566 code, action, oldItem, newItem);
567
568 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
569
570 nmhdr.hdr.hwndFrom = hwnd;
571 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
572 nmhdr.hdr.code = get_notifycode(infoPtr, code);
573 nmhdr.action = action;
574
575 if (oldItem)
576 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
577
578 if (newItem)
579 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
580
581 nmhdr.ptDrag.x = 0;
582 nmhdr.ptDrag.y = 0;
583
584 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
585 (WPARAM)nmhdr.hdr.idFrom,
586 (LPARAM)&nmhdr);
587 if (!infoPtr->bNtfUnicode)
588 {
589 Free(nmhdr.itemOld.pszText);
590 Free(nmhdr.itemNew.pszText);
591 }
592 return ret;
593 }
594
595 static BOOL
596 TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
597 HTREEITEM dragItem, POINT pt)
598 {
599 HWND hwnd = infoPtr->hwnd;
600 NMTREEVIEWW nmhdr;
601
602 TRACE("code:%d dragitem:%p\n", code, dragItem);
603
604 nmhdr.hdr.hwndFrom = hwnd;
605 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
606 nmhdr.hdr.code = get_notifycode(infoPtr, code);
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
617 (WPARAM)nmhdr.hdr.idFrom,
618 (LPARAM)&nmhdr);
619 }
620
621
622 static BOOL
623 TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
624 HDC hdc, RECT rc)
625 {
626 HWND hwnd = infoPtr->hwnd;
627 NMTVCUSTOMDRAW nmcdhdr;
628 LPNMCUSTOMDRAW nmcd;
629
630 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->hdr.hwndFrom = hwnd;
634 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
635 nmcd->hdr.code = NM_CUSTOMDRAW;
636 nmcd->dwDrawStage = dwDrawStage;
637 nmcd->hdc = hdc;
638 nmcd->rc = rc;
639 nmcd->dwItemSpec = 0;
640 nmcd->uItemState = 0;
641 nmcd->lItemlParam = 0;
642 nmcdhdr.clrText = infoPtr->clrText;
643 nmcdhdr.clrTextBk = infoPtr->clrBk;
644 nmcdhdr.iLevel = 0;
645
646 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
647 (WPARAM)nmcd->hdr.idFrom,
648 (LPARAM)&nmcdhdr);
649 }
650
651
652
653 /* FIXME: need to find out when the flags in uItemState need to be set */
654
655 static BOOL
656 TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
657 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
658 NMTVCUSTOMDRAW *nmcdhdr)
659 {
660 HWND hwnd = infoPtr->hwnd;
661 LPNMCUSTOMDRAW nmcd;
662 DWORD dwDrawStage;
663 DWORD_PTR dwItemSpec;
664 UINT uItemState;
665 INT retval;
666
667 dwDrawStage = CDDS_ITEM | uItemDrawState;
668 dwItemSpec = (DWORD_PTR)wineItem;
669 uItemState = 0;
670 if (wineItem->state & TVIS_SELECTED)
671 uItemState |= CDIS_SELECTED;
672 if (wineItem == infoPtr->selectedItem)
673 uItemState |= CDIS_FOCUS;
674 if (wineItem == infoPtr->hotItem)
675 uItemState |= CDIS_HOT;
676
677 nmcd = &nmcdhdr->nmcd;
678 nmcd->hdr.hwndFrom = hwnd;
679 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
680 nmcd->hdr.code = NM_CUSTOMDRAW;
681 nmcd->dwDrawStage = dwDrawStage;
682 nmcd->hdc = hdc;
683 nmcd->rc = wineItem->rect;
684 nmcd->dwItemSpec = dwItemSpec;
685 nmcd->uItemState = uItemState;
686 nmcd->lItemlParam = wineItem->lParam;
687 nmcdhdr->iLevel = wineItem->iLevel;
688
689 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
690 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
691 nmcd->uItemState, nmcd->lItemlParam);
692
693 retval = TREEVIEW_SendRealNotify(infoPtr,
694 (WPARAM)nmcd->hdr.idFrom,
695 (LPARAM)nmcdhdr);
696
697 return (BOOL)retval;
698 }
699
700 static BOOL
701 TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
702 {
703 HWND hwnd = infoPtr->hwnd;
704 NMTVDISPINFOW tvdi;
705 BOOL ret;
706
707 tvdi.hdr.hwndFrom = hwnd;
708 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
709 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
710
711 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
712 &tvdi.item, editItem);
713
714 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
715
716 if (!infoPtr->bNtfUnicode)
717 Free(tvdi.item.pszText);
718
719 return ret;
720 }
721
722 static void
723 TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
724 UINT mask)
725 {
726 NMTVDISPINFOW callback;
727 HWND hwnd = infoPtr->hwnd;
728
729 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
730 mask &= wineItem->callbackMask;
731
732 if (mask == 0) return;
733
734 callback.hdr.hwndFrom = hwnd;
735 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
736 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
737
738 /* 'state' always contains valid value, as well as 'lParam'.
739 * All other parameters are uninitialized.
740 */
741 callback.item.pszText = wineItem->pszText;
742 callback.item.cchTextMax = wineItem->cchTextMax;
743 callback.item.mask = mask;
744 callback.item.hItem = wineItem;
745 callback.item.state = wineItem->state;
746 callback.item.lParam = wineItem->lParam;
747
748 /* If text is changed we need to recalculate textWidth */
749 if (mask & TVIF_TEXT)
750 wineItem->textWidth = 0;
751
752 TREEVIEW_SendRealNotify(infoPtr,
753 (WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
754
755 /* It may have changed due to a call to SetItem. */
756 mask &= wineItem->callbackMask;
757
758 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
759 {
760 /* Instead of copying text into our buffer user specified its own */
761 if (!infoPtr->bNtfUnicode) {
762 LPWSTR newText;
763 int buflen;
764 int len = MultiByteToWideChar( CP_ACP, 0,
765 (LPSTR)callback.item.pszText, -1,
766 NULL, 0);
767 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
768 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
769
770 TRACE("returned str %s, len=%d, buflen=%d\n",
771 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
772
773 if (newText)
774 {
775 wineItem->pszText = newText;
776 MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 wineItem->pszText, buflen/sizeof(WCHAR));
779 wineItem->cchTextMax = buflen/sizeof(WCHAR);
780 }
781 /* If ReAlloc fails we have nothing to do, but keep original text */
782 }
783 else {
784 int len = max(lstrlenW(callback.item.pszText) + 1,
785 TEXT_CALLBACK_SIZE);
786 LPWSTR newText = ReAlloc(wineItem->pszText, len);
787
788 TRACE("returned wstr %s, len=%d\n",
789 debugstr_w(callback.item.pszText), len);
790
791 if (newText)
792 {
793 wineItem->pszText = newText;
794 strcpyW(wineItem->pszText, callback.item.pszText);
795 wineItem->cchTextMax = len;
796 }
797 /* If ReAlloc fails we have nothing to do, but keep original text */
798 }
799 }
800 else if (mask & TVIF_TEXT) {
801 /* User put text into our buffer, that is ok unless A string */
802 if (!infoPtr->bNtfUnicode) {
803 LPWSTR newText;
804 LPWSTR oldText = NULL;
805 int buflen;
806 int len = MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 NULL, 0);
809 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
810 newText = (LPWSTR)Alloc(buflen);
811
812 TRACE("same buffer str %s, len=%d, buflen=%d\n",
813 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
814
815 if (newText)
816 {
817 oldText = wineItem->pszText;
818 wineItem->pszText = newText;
819 MultiByteToWideChar( CP_ACP, 0,
820 (LPSTR)callback.item.pszText, -1,
821 wineItem->pszText, buflen/sizeof(WCHAR));
822 wineItem->cchTextMax = buflen/sizeof(WCHAR);
823 if (oldText)
824 Free(oldText);
825 }
826 }
827 }
828
829 if (mask & TVIF_IMAGE)
830 wineItem->iImage = callback.item.iImage;
831
832 if (mask & TVIF_SELECTEDIMAGE)
833 wineItem->iSelectedImage = callback.item.iSelectedImage;
834
835 if (mask & TVIF_CHILDREN)
836 wineItem->cChildren = callback.item.cChildren;
837
838 /* These members are now permanently set. */
839 if (callback.item.mask & TVIF_DI_SETITEM)
840 wineItem->callbackMask &= ~callback.item.mask;
841 }
842
843 /***************************************************************************
844 * This function uses cChildren field to decide whether the item has
845 * children or not.
846 * Note: if this returns TRUE, the child items may not actually exist,
847 * they could be virtual.
848 *
849 * Just use wineItem->firstChild to check for physical children.
850 */
851 static BOOL
852 TREEVIEW_HasChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
853 {
854 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
855
856 return wineItem->cChildren > 0;
857 }
858
859
860 /* Item Position ********************************************************/
861
862 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
863 static VOID
864 TREEVIEW_ComputeItemInternalMetrics(TREEVIEW_INFO *infoPtr,
865 TREEVIEW_ITEM *item)
866 {
867 /* Same effect, different optimisation. */
868 #if 0
869 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
870 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
871 #else
872 BOOL lar = ((infoPtr->dwStyle
873 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
874 > TVS_LINESATROOT);
875 #endif
876
877 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
878 - infoPtr->scrollX;
879 item->stateOffset = item->linesOffset + infoPtr->uIndent;
880 item->imageOffset = item->stateOffset
881 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
882 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
883 }
884
885 static VOID
886 TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
887 {
888 HDC hdc;
889 HFONT hOldFont=0;
890 SIZE sz;
891
892 /* DRAW's OM docker creates items like this */
893 if (item->pszText == NULL)
894 {
895 item->textWidth = 0;
896 return;
897 }
898
899 if (hDC != 0)
900 {
901 hdc = hDC;
902 }
903 else
904 {
905 hdc = GetDC(infoPtr->hwnd);
906 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
907 }
908
909 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
910 item->textWidth = sz.cx;
911
912 if (hDC == 0)
913 {
914 SelectObject(hdc, hOldFont);
915 ReleaseDC(0, hdc);
916 }
917 }
918
919 static VOID
920 TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
921 {
922 item->rect.top = infoPtr->uItemHeight *
923 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
924
925 item->rect.bottom = item->rect.top
926 + infoPtr->uItemHeight * item->iIntegral - 1;
927
928 item->rect.left = 0;
929 item->rect.right = infoPtr->clientWidth;
930 }
931
932 /* We know that only items after start need their order updated. */
933 static void
934 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
935 {
936 TREEVIEW_ITEM *item;
937 int order;
938
939 if (!start)
940 {
941 start = infoPtr->root->firstChild;
942 order = 0;
943 }
944 else
945 order = start->visibleOrder;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 item->visibleOrder = order;
951 order += item->iIntegral;
952 }
953
954 infoPtr->maxVisibleOrder = order;
955
956 for (item = start; item != NULL;
957 item = TREEVIEW_GetNextListItem(infoPtr, item))
958 {
959 TREEVIEW_ComputeItemRect(infoPtr, item);
960 }
961 }
962
963
964 /* Update metrics of all items in selected subtree.
965 * root must be expanded
966 */
967 static VOID
968 TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
969 {
970 TREEVIEW_ITEM *sibling;
971 HDC hdc;
972 HFONT hOldFont;
973
974 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
975 return;
976
977 root->state &= ~TVIS_EXPANDED;
978 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
979 root->state |= TVIS_EXPANDED;
980
981 hdc = GetDC(infoPtr->hwnd);
982 hOldFont = SelectObject(hdc, infoPtr->hFont);
983
984 for (; root != sibling;
985 root = TREEVIEW_GetNextListItem(infoPtr, root))
986 {
987 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
988
989 if (root->callbackMask & TVIF_TEXT)
990 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
991
992 if (root->textWidth == 0)
993 {
994 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
995 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
996 }
997 }
998
999 SelectObject(hdc, hOldFont);
1000 ReleaseDC(infoPtr->hwnd, hdc);
1001 }
1002
1003 /* Item Allocation **********************************************************/
1004
1005 static TREEVIEW_ITEM *
1006 TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 /* I_IMAGENONE would make more sense but this is neither what is
1014 * documented (MSDN doesn't specify) nor what Windows actually does
1015 * (it sets it to zero)... and I can so imagine an application using
1016 * inc/dec to toggle the images. */
1017 newItem->iImage = 0;
1018 newItem->iSelectedImage = 0;
1019
1020 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1021 {
1022 Free(newItem);
1023 return NULL;
1024 }
1025
1026 return newItem;
1027 }
1028
1029 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1030 * free item->pszText. */
1031 static void
1032 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1033 {
1034 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1035 Free(item);
1036 if (infoPtr->selectedItem == item)
1037 infoPtr->selectedItem = NULL;
1038 if (infoPtr->hotItem == item)
1039 infoPtr->hotItem = NULL;
1040 if (infoPtr->focusedItem == item)
1041 infoPtr->focusedItem = NULL;
1042 if (infoPtr->firstVisible == item)
1043 infoPtr->firstVisible = NULL;
1044 if (infoPtr->dropItem == item)
1045 infoPtr->dropItem = NULL;
1046 if (infoPtr->insertMarkItem == item)
1047 infoPtr->insertMarkItem = NULL;
1048 }
1049
1050
1051 /* Item Insertion *******************************************************/
1052
1053 /***************************************************************************
1054 * This method inserts newItem before sibling as a child of parent.
1055 * sibling can be NULL, but only if parent has no children.
1056 */
1057 static void
1058 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1059 TREEVIEW_ITEM *parent)
1060 {
1061 assert(newItem != NULL);
1062 assert(parent != NULL);
1063
1064 if (sibling != NULL)
1065 {
1066 assert(sibling->parent == parent);
1067
1068 if (sibling->prevSibling != NULL)
1069 sibling->prevSibling->nextSibling = newItem;
1070
1071 newItem->prevSibling = sibling->prevSibling;
1072 sibling->prevSibling = newItem;
1073 }
1074 else
1075 newItem->prevSibling = NULL;
1076
1077 newItem->nextSibling = sibling;
1078
1079 if (parent->firstChild == sibling)
1080 parent->firstChild = newItem;
1081
1082 if (parent->lastChild == NULL)
1083 parent->lastChild = newItem;
1084 }
1085
1086 /***************************************************************************
1087 * This method inserts newItem after sibling as a child of parent.
1088 * sibling can be NULL, but only if parent has no children.
1089 */
1090 static void
1091 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1092 TREEVIEW_ITEM *parent)
1093 {
1094 assert(newItem != NULL);
1095 assert(parent != NULL);
1096
1097 if (sibling != NULL)
1098 {
1099 assert(sibling->parent == parent);
1100
1101 if (sibling->nextSibling != NULL)
1102 sibling->nextSibling->prevSibling = newItem;
1103
1104 newItem->nextSibling = sibling->nextSibling;
1105 sibling->nextSibling = newItem;
1106 }
1107 else
1108 newItem->nextSibling = NULL;
1109
1110 newItem->prevSibling = sibling;
1111
1112 if (parent->lastChild == sibling)
1113 parent->lastChild = newItem;
1114
1115 if (parent->firstChild == NULL)
1116 parent->firstChild = newItem;
1117 }
1118
1119 static BOOL
1120 TREEVIEW_DoSetItemT(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1121 const TVITEMEXW *tvItem, BOOL isW)
1122 {
1123 UINT callbackClear = 0;
1124 UINT callbackSet = 0;
1125
1126 TRACE("item %p\n", wineItem);
1127 /* Do this first in case it fails. */
1128 if (tvItem->mask & TVIF_TEXT)
1129 {
1130 wineItem->textWidth = 0; /* force width recalculation */
1131 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1132 {
1133 int len;
1134 LPWSTR newText;
1135 if (isW)
1136 len = lstrlenW(tvItem->pszText) + 1;
1137 else
1138 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1139
1140 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1141
1142 if (newText == NULL) return FALSE;
1143
1144 callbackClear |= TVIF_TEXT;
1145
1146 wineItem->pszText = newText;
1147 wineItem->cchTextMax = len;
1148 if (isW)
1149 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1150 else
1151 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1152 wineItem->pszText, len);
1153
1154 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1155 }
1156 else
1157 {
1158 callbackSet |= TVIF_TEXT;
1159
1160 wineItem->pszText = ReAlloc(wineItem->pszText,
1161 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1162 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1163 TRACE("setting callback, item %p\n", wineItem);
1164 }
1165 }
1166
1167 if (tvItem->mask & TVIF_CHILDREN)
1168 {
1169 wineItem->cChildren = tvItem->cChildren;
1170
1171 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1172 callbackSet |= TVIF_CHILDREN;
1173 else
1174 callbackClear |= TVIF_CHILDREN;
1175 }
1176
1177 if (tvItem->mask & TVIF_IMAGE)
1178 {
1179 wineItem->iImage = tvItem->iImage;
1180
1181 if (wineItem->iImage == I_IMAGECALLBACK)
1182 callbackSet |= TVIF_IMAGE;
1183 else
1184 callbackClear |= TVIF_IMAGE;
1185 }
1186
1187 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1188 {
1189 wineItem->iSelectedImage = tvItem->iSelectedImage;
1190
1191 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1192 callbackSet |= TVIF_SELECTEDIMAGE;
1193 else
1194 callbackClear |= TVIF_SELECTEDIMAGE;
1195 }
1196
1197 if (tvItem->mask & TVIF_PARAM)
1198 wineItem->lParam = tvItem->lParam;
1199
1200 /* If the application sets TVIF_INTEGRAL without
1201 * supplying a TVITEMEX structure, it's toast. */
1202 if (tvItem->mask & TVIF_INTEGRAL)
1203 wineItem->iIntegral = tvItem->iIntegral;
1204
1205 if (tvItem->mask & TVIF_STATE)
1206 {
1207 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1208 tvItem->stateMask);
1209 wineItem->state &= ~tvItem->stateMask;
1210 wineItem->state |= (tvItem->state & tvItem->stateMask);
1211 }
1212
1213 wineItem->callbackMask |= callbackSet;
1214 wineItem->callbackMask &= ~callbackClear;
1215
1216 return TRUE;
1217 }
1218
1219 /* Note that the new item is pre-zeroed. */
1220 static LRESULT
1221 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1222 {
1223 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1224 HTREEITEM insertAfter;
1225 TREEVIEW_ITEM *newItem, *parentItem;
1226 BOOL bTextUpdated = FALSE;
1227
1228 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1229 {
1230 parentItem = infoPtr->root;
1231 }
1232 else
1233 {
1234 parentItem = ptdi->hParent;
1235
1236 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1237 {
1238 WARN("invalid parent %p\n", parentItem);
1239 return (LRESULT)(HTREEITEM)NULL;
1240 }
1241 }
1242
1243 insertAfter = ptdi->hInsertAfter;
1244
1245 /* Validate this now for convenience. */
1246 switch ((DWORD_PTR)insertAfter)
1247 {
1248 case (DWORD_PTR)TVI_FIRST:
1249 case (DWORD_PTR)TVI_LAST:
1250 case (DWORD_PTR)TVI_SORT:
1251 break;
1252
1253 default:
1254 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1255 insertAfter->parent != parentItem)
1256 {
1257 WARN("invalid insert after %p\n", insertAfter);
1258 insertAfter = TVI_LAST;
1259 }
1260 }
1261
1262 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1263 (tvItem->mask & TVIF_TEXT)
1264 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1265 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1266 : "<no label>");
1267
1268 newItem = TREEVIEW_AllocateItem(infoPtr);
1269 if (newItem == NULL)
1270 return (LRESULT)(HTREEITEM)NULL;
1271
1272 newItem->parent = parentItem;
1273 newItem->iIntegral = 1;
1274
1275 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1276 return (LRESULT)(HTREEITEM)NULL;
1277
1278 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1279
1280 infoPtr->uNumItems++;
1281
1282 switch ((DWORD_PTR)insertAfter)
1283 {
1284 case (DWORD_PTR)TVI_FIRST:
1285 {
1286 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1287 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1288 if (infoPtr->firstVisible == originalFirst)
1289 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1290 }
1291 break;
1292
1293 case (DWORD_PTR)TVI_LAST:
1294 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1295 break;
1296
1297 /* hInsertAfter names a specific item we want to insert after */
1298 default:
1299 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1300 break;
1301
1302 case (DWORD_PTR)TVI_SORT:
1303 {
1304 TREEVIEW_ITEM *aChild;
1305 TREEVIEW_ITEM *previousChild = NULL;
1306 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1307 BOOL bItemInserted = FALSE;
1308
1309 aChild = parentItem->firstChild;
1310
1311 bTextUpdated = TRUE;
1312 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1313
1314 /* Iterate the parent children to see where we fit in */
1315 while (aChild != NULL)
1316 {
1317 INT comp;
1318
1319 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1320 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1321
1322 if (comp < 0) /* we are smaller than the current one */
1323 {
1324 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1325 if (infoPtr->firstVisible == originalFirst &&
1326 aChild == originalFirst)
1327 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1328 bItemInserted = TRUE;
1329 break;
1330 }
1331 else if (comp > 0) /* we are bigger than the current one */
1332 {
1333 previousChild = aChild;
1334
1335 /* This will help us to exit if there is no more sibling */
1336 aChild = (aChild->nextSibling == 0)
1337 ? NULL
1338 : aChild->nextSibling;
1339
1340 /* Look at the next item */
1341 continue;
1342 }
1343 else if (comp == 0)
1344 {
1345 /*
1346 * An item with this name is already existing, therefore,
1347 * we add after the one we found
1348 */
1349 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1350 bItemInserted = TRUE;
1351 break;
1352 }
1353 }
1354
1355 /*
1356 * we reach the end of the child list and the item has not
1357 * yet been inserted, therefore, insert it after the last child.
1358 */
1359 if ((!bItemInserted) && (aChild == NULL))
1360 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1361
1362 break;
1363 }
1364 }
1365
1366
1367 TRACE("new item %p; parent %p, mask %x\n", newItem,
1368 newItem->parent, tvItem->mask);
1369
1370 newItem->iLevel = newItem->parent->iLevel + 1;
1371
1372 if (newItem->parent->cChildren == 0)
1373 newItem->parent->cChildren = 1;
1374
1375 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1376 {
1377 if (STATEIMAGEINDEX(newItem->state) == 0)
1378 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1379 }
1380
1381 if (infoPtr->firstVisible == NULL)
1382 infoPtr->firstVisible = newItem;
1383
1384 TREEVIEW_VerifyTree(infoPtr);
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 newItem->visibleOrder = -1;
1412
1413 /* refresh treeview if newItem is the first item inserted under parentItem */
1414 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1415 {
1416 /* parent got '+' - update it */
1417 TREEVIEW_Invalidate(infoPtr, parentItem);
1418 }
1419 }
1420
1421 return (LRESULT)newItem;
1422 }
1423
1424 /* Item Deletion ************************************************************/
1425 static void
1426 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1427
1428 static void
1429 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
1430 {
1431 TREEVIEW_ITEM *kill = parentItem->firstChild;
1432
1433 while (kill != NULL)
1434 {
1435 TREEVIEW_ITEM *next = kill->nextSibling;
1436
1437 TREEVIEW_RemoveItem(infoPtr, kill);
1438
1439 kill = next;
1440 }
1441
1442 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1443 assert(parentItem->firstChild == NULL);
1444 assert(parentItem->lastChild == NULL);
1445 }
1446
1447 static void
1448 TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
1449 {
1450 TREEVIEW_ITEM *parentItem = item->parent;
1451
1452 assert(item != NULL);
1453 assert(item->parent != NULL); /* i.e. it must not be the root */
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 *wineItem)
1474 {
1475 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1476
1477 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1478 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1479
1480 if (wineItem->firstChild)
1481 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1482
1483 TREEVIEW_UnlinkItem(wineItem);
1484
1485 infoPtr->uNumItems--;
1486
1487 if (wineItem->pszText && wineItem->pszText != LPSTR_TEXTCALLBACKW)
1488 Free(wineItem->pszText);
1489
1490 TREEVIEW_FreeItem(infoPtr, wineItem);
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 wineItem)
1505 {
1506 TREEVIEW_ITEM *newSelection = NULL;
1507 TREEVIEW_ITEM *newFirstVisible = NULL;
1508 TREEVIEW_ITEM *parent, *prev = NULL;
1509 BOOL visible = FALSE;
1510
1511 if (wineItem == TVI_ROOT)
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, wineItem))
1522 return FALSE;
1523
1524 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1525 parent = wineItem->parent;
1526
1527 if (ISVISIBLE(wineItem))
1528 {
1529 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1530 visible = TRUE;
1531 }
1532
1533 if (infoPtr->selectedItem != NULL
1534 && (wineItem == infoPtr->selectedItem
1535 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1536 {
1537 if (wineItem->nextSibling)
1538 newSelection = wineItem->nextSibling;
1539 else if (wineItem->parent != infoPtr->root)
1540 newSelection = wineItem->parent;
1541 else
1542 newSelection = wineItem->prevSibling;
1543 TRACE("newSelection = %p\n", newSelection);
1544 }
1545
1546 if (infoPtr->firstVisible == wineItem)
1547 {
1548 if (wineItem->nextSibling)
1549 newFirstVisible = wineItem->nextSibling;
1550 else if (wineItem->prevSibling)
1551 newFirstVisible = wineItem->prevSibling;
1552 else if (wineItem->parent != infoPtr->root)
1553 newFirstVisible = wineItem->parent;
1554 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1555 }
1556 else
1557 newFirstVisible = infoPtr->firstVisible;
1558
1559 TREEVIEW_RemoveItem(infoPtr, wineItem);
1560 }
1561
1562 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1563 if (!infoPtr->selectedItem && newSelection)
1564 {
1565 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1566 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1567 }
1568
1569 /* Validate insertMark dropItem.
1570 * hotItem ??? - used for comparison only.
1571 */
1572 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1573 infoPtr->insertMarkItem = 0;
1574
1575 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1576 infoPtr->dropItem = 0;
1577
1578 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1579 newFirstVisible = infoPtr->root->firstChild;
1580
1581 TREEVIEW_VerifyTree(infoPtr);
1582
1583
1584 if (visible)
1585 {
1586 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1587 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1588 TREEVIEW_UpdateScrollBars(infoPtr);
1589 TREEVIEW_Invalidate(infoPtr, NULL);
1590 }
1591 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1592 {
1593 /* parent lost '+/-' - update it */
1594 TREEVIEW_Invalidate(infoPtr, parent);
1595 }
1596
1597 return TRUE;
1598 }
1599
1600
1601 /* Get/Set Messages *********************************************************/
1602 static LRESULT
1603 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1604 {
1605 if(wParam)
1606 infoPtr->bRedraw = TRUE;
1607 else
1608 infoPtr->bRedraw = FALSE;
1609
1610 return 0;
1611 }
1612
1613 static LRESULT
1614 TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
1615 {
1616 TRACE("\n");
1617 return infoPtr->uIndent;
1618 }
1619
1620 static LRESULT
1621 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1622 {
1623 TRACE("\n");
1624
1625 if (newIndent < MINIMUM_INDENT)
1626 newIndent = MINIMUM_INDENT;
1627
1628 if (infoPtr->uIndent != newIndent)
1629 {
1630 infoPtr->uIndent = newIndent;
1631 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1632 TREEVIEW_UpdateScrollBars(infoPtr);
1633 TREEVIEW_Invalidate(infoPtr, NULL);
1634 }
1635
1636 return 0;
1637 }
1638
1639
1640 static LRESULT
1641 TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
1642 {
1643 TRACE("\n");
1644 return (LRESULT)infoPtr->hwndToolTip;
1645 }
1646
1647 static LRESULT
1648 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1649 {
1650 HWND prevToolTip;
1651
1652 TRACE("\n");
1653 prevToolTip = infoPtr->hwndToolTip;
1654 infoPtr->hwndToolTip = hwndTT;
1655
1656 return (LRESULT)prevToolTip;
1657 }
1658
1659 static LRESULT
1660 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1661 {
1662 BOOL rc = infoPtr->bNtfUnicode;
1663 infoPtr->bNtfUnicode = fUnicode;
1664 return rc;
1665 }
1666
1667 static LRESULT
1668 TREEVIEW_GetUnicodeFormat(TREEVIEW_INFO *infoPtr)
1669 {
1670 return infoPtr->bNtfUnicode;
1671 }
1672
1673 static LRESULT
1674 TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
1675 {
1676 return infoPtr->uScrollTime;
1677 }
1678
1679 static LRESULT
1680 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1681 {
1682 UINT uOldScrollTime = infoPtr->uScrollTime;
1683
1684 infoPtr->uScrollTime = min(uScrollTime, 100);
1685
1686 return uOldScrollTime;
1687 }
1688
1689
1690 static LRESULT
1691 TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
1692 {
1693 TRACE("\n");
1694
1695 switch (wParam)
1696 {
1697 case (WPARAM)TVSIL_NORMAL:
1698 return (LRESULT)infoPtr->himlNormal;
1699
1700 case (WPARAM)TVSIL_STATE:
1701 return (LRESULT)infoPtr->himlState;
1702
1703 default:
1704 return 0;
1705 }
1706 }
1707
1708 #define TVHEIGHT_MIN 16
1709 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1710
1711 /* Compute the natural height for items. */
1712 static UINT
1713 TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
1714 {
1715 TEXTMETRICW tm;
1716 HDC hdc = GetDC(0);
1717 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1718 UINT height;
1719
1720 /* Height is the maximum of:
1721 * 16 (a hack because our fonts are tiny), and
1722 * The text height + border & margin, and
1723 * The size of the normal image list
1724 */
1725 GetTextMetricsW(hdc, &tm);
1726 SelectObject(hdc, hOldFont);
1727 ReleaseDC(0, hdc);
1728
1729 height = TVHEIGHT_MIN;
1730 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1731 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1732 if (height < infoPtr->normalImageHeight)
1733 height = infoPtr->normalImageHeight;
1734 return height;
1735 }
1736
1737 static LRESULT
1738 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1739 {
1740 HIMAGELIST himlOld = 0;
1741 int oldWidth = infoPtr->normalImageWidth;
1742 int oldHeight = infoPtr->normalImageHeight;
1743
1744
1745 TRACE("%x,%p\n", wParam, himlNew);
1746
1747 switch (wParam)
1748 {
1749 case (WPARAM)TVSIL_NORMAL:
1750 himlOld = infoPtr->himlNormal;
1751 infoPtr->himlNormal = himlNew;
1752
1753 if (himlNew != NULL)
1754 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1755 &infoPtr->normalImageHeight);
1756 else
1757 {
1758 infoPtr->normalImageWidth = 0;
1759 infoPtr->normalImageHeight = 0;
1760 }
1761
1762 break;
1763
1764 case (WPARAM)TVSIL_STATE:
1765 himlOld = infoPtr->himlState;
1766 infoPtr->himlState = himlNew;
1767
1768 if (himlNew != NULL)
1769 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1770 &infoPtr->stateImageHeight);
1771 else
1772 {
1773 infoPtr->stateImageWidth = 0;
1774 infoPtr->stateImageHeight = 0;
1775 }
1776
1777 break;
1778 }
1779
1780 if (oldWidth != infoPtr->normalImageWidth ||
1781 oldHeight != infoPtr->normalImageHeight)
1782 {
1783 BOOL bRecalcVisible = FALSE;
1784
1785 if (oldHeight != infoPtr->normalImageHeight &&
1786 !infoPtr->bHeightSet)
1787 {
1788 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1789 bRecalcVisible = TRUE;
1790 }
1791
1792 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1793 infoPtr->normalImageWidth != infoPtr->uIndent)
1794 {
1795 infoPtr->uIndent = infoPtr->normalImageWidth;
1796 bRecalcVisible = TRUE;
1797 }
1798
1799 if (bRecalcVisible)
1800 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1801
1802 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1803 TREEVIEW_UpdateScrollBars(infoPtr);
1804 }
1805
1806 TREEVIEW_Invalidate(infoPtr, NULL);
1807
1808 return (LRESULT)himlOld;
1809 }
1810
1811 static LRESULT
1812 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1813 {
1814 INT prevHeight = infoPtr->uItemHeight;
1815
1816 TRACE("%d\n", newHeight);
1817 if (newHeight == -1)
1818 {
1819 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1820 infoPtr->bHeightSet = FALSE;
1821 }
1822 else
1823 {
1824 infoPtr->uItemHeight = newHeight;
1825 infoPtr->bHeightSet = TRUE;
1826 }
1827
1828 /* Round down, unless we support odd ("non even") heights. */
1829 if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
1830 infoPtr->uItemHeight &= ~1;
1831
1832 if (infoPtr->uItemHeight != prevHeight)
1833 {
1834 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1835 TREEVIEW_UpdateScrollBars(infoPtr);
1836 TREEVIEW_Invalidate(infoPtr, NULL);
1837 }
1838
1839 return prevHeight;
1840 }
1841
1842 static LRESULT
1843 TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
1844 {
1845 TRACE("\n");
1846 return infoPtr->uItemHeight;
1847 }
1848
1849
1850 static LRESULT
1851 TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
1852 {
1853 TRACE("%p\n", infoPtr->hFont);
1854 return (LRESULT)infoPtr->hFont;
1855 }
1856
1857
1858 static INT CALLBACK
1859 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1860 {
1861 (void)unused;
1862
1863 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1864
1865 return 1;
1866 }
1867
1868 static LRESULT
1869 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1870 {
1871 UINT uHeight = infoPtr->uItemHeight;
1872
1873 TRACE("%p %i\n", hFont, bRedraw);
1874
1875 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1876
1877 DeleteObject(infoPtr->hBoldFont);
1878 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1879 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1880
1881 if (!infoPtr->bHeightSet)
1882 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1883
1884 if (uHeight != infoPtr->uItemHeight)
1885 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1886
1887 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1888
1889 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1890 TREEVIEW_UpdateScrollBars(infoPtr);
1891
1892 if (bRedraw)
1893 TREEVIEW_Invalidate(infoPtr, NULL);
1894
1895 return 0;
1896 }
1897
1898
1899 static LRESULT
1900 TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
1901 {
1902 TRACE("\n");
1903 return (LRESULT)infoPtr->clrLine;
1904 }
1905
1906 static LRESULT
1907 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1908 {
1909 COLORREF prevColor = infoPtr->clrLine;
1910
1911 TRACE("\n");
1912 infoPtr->clrLine = color;
1913 return (LRESULT)prevColor;
1914 }
1915
1916
1917 static LRESULT
1918 TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
1919 {
1920 TRACE("\n");
1921 return (LRESULT)infoPtr->clrText;
1922 }
1923
1924 static LRESULT
1925 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1926 {
1927 COLORREF prevColor = infoPtr->clrText;
1928
1929 TRACE("\n");
1930 infoPtr->clrText = color;
1931
1932 if (infoPtr->clrText != prevColor)
1933 TREEVIEW_Invalidate(infoPtr, NULL);
1934
1935 return (LRESULT)prevColor;
1936 }
1937
1938
1939 static LRESULT
1940 TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
1941 {
1942 TRACE("\n");
1943 return (LRESULT)infoPtr->clrBk;
1944 }
1945
1946 static LRESULT
1947 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1948 {
1949 COLORREF prevColor = infoPtr->clrBk;
1950
1951 TRACE("\n");
1952 infoPtr->clrBk = newColor;
1953
1954 if (newColor != prevColor)
1955 TREEVIEW_Invalidate(infoPtr, NULL);
1956
1957 return (LRESULT)prevColor;
1958 }
1959
1960
1961 static LRESULT
1962 TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
1963 {
1964 TRACE("\n");
1965 return (LRESULT)infoPtr->clrInsertMark;
1966 }
1967
1968 static LRESULT
1969 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1970 {
1971 COLORREF prevColor = infoPtr->clrInsertMark;
1972
1973 TRACE("%x\n", color);
1974 infoPtr->clrInsertMark = color;
1975
1976 return (LRESULT)prevColor;
1977 }
1978
1979
1980 static LRESULT
1981 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1982 {
1983 TRACE("%d %p\n", wParam, item);
1984
1985 if (!TREEVIEW_ValidItem(infoPtr, item))
1986 return 0;
1987
1988 infoPtr->insertBeforeorAfter = wParam;
1989 infoPtr->insertMarkItem = item;
1990
1991 TREEVIEW_Invalidate(infoPtr, NULL);
1992
1993 return 1;
1994 }
1995
1996
1997 /************************************************************************
1998 * Some serious braindamage here. lParam is a pointer to both the
1999 * input HTREEITEM and the output RECT.
2000 */
2001 static LRESULT
2002 TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2003 {
2004 TREEVIEW_ITEM *wineItem;
2005 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2006
2007 TRACE("\n");
2008 /*
2009 * validate parameters
2010 */
2011 if (pItem == NULL)
2012 return FALSE;
2013
2014 wineItem = *pItem;
2015 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2016 return FALSE;
2017
2018 /*
2019 * If wParam is TRUE return the text size otherwise return
2020 * the whole item size
2021 */
2022 if (fTextRect)
2023 {
2024 /* Windows does not send TVN_GETDISPINFO here. */
2025
2026 lpRect->top = wineItem->rect.top;
2027 lpRect->bottom = wineItem->rect.bottom;
2028
2029 lpRect->left = wineItem->textOffset;
2030 lpRect->right = wineItem->textOffset + wineItem->textWidth;
2031 }
2032 else
2033 {
2034 *lpRect = wineItem->rect;
2035 }
2036
2037 TRACE("%s [L:%d R:%d T:%d B:%d]\n", fTextRect ? "text" : "item",
2038 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2039
2040 return TRUE;
2041 }
2042
2043 static inline LRESULT
2044 TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
2045 {
2046 /* Suprise! This does not take integral height into account. */
2047 return infoPtr->clientHeight / infoPtr->uItemHeight;
2048 }
2049
2050
2051 static LRESULT
2052 TREEVIEW_GetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2053 {
2054 TREEVIEW_ITEM *wineItem;
2055
2056 wineItem = tvItem->hItem;
2057 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2058 return FALSE;
2059
2060 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2061
2062 if (tvItem->mask & TVIF_CHILDREN)
2063 {
2064 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2065 FIXME("I_CHILDRENCALLBACK not supported\n");
2066 tvItem->cChildren = wineItem->cChildren;
2067 }
2068
2069 if (tvItem->mask & TVIF_HANDLE)
2070 tvItem->hItem = wineItem;
2071
2072 if (tvItem->mask & TVIF_IMAGE)
2073 tvItem->iImage = wineItem->iImage;
2074
2075 if (tvItem->mask & TVIF_INTEGRAL)
2076 tvItem->iIntegral = wineItem->iIntegral;
2077
2078 /* undocumented: windows ignores TVIF_PARAM and
2079 * * always sets lParam
2080 */
2081 tvItem->lParam = wineItem->lParam;
2082
2083 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2084 tvItem->iSelectedImage = wineItem->iSelectedImage;
2085
2086 if (tvItem->mask & TVIF_STATE)
2087 /* Careful here - Windows ignores the stateMask when you get the state
2088 That contradicts the documentation, but makes more common sense, masking
2089 retrieval in this way seems overkill */
2090 tvItem->state = wineItem->state;
2091
2092 if (tvItem->mask & TVIF_TEXT)
2093 {
2094 if (isW)
2095 {
2096 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2097 {
2098 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2099 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2100 }
2101 else
2102 {
2103 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2104 }
2105 }
2106 else
2107 {
2108 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2109 {
2110 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2111 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2112 }
2113 else
2114 {
2115 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2116 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2117 }
2118 }
2119 }
2120 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2121 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2122
2123 return TRUE;
2124 }
2125
2126 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2127 * which is wrong. */
2128 static LRESULT
2129 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2130 {
2131 TREEVIEW_ITEM *wineItem;
2132 TREEVIEW_ITEM originalItem;
2133
2134 wineItem = tvItem->hItem;
2135
2136 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2137 tvItem->mask);
2138
2139 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2140 return FALSE;
2141
2142 /* store the orignal item values */
2143 originalItem = *wineItem;
2144
2145 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2146 return FALSE;
2147
2148 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2149 if ((tvItem->mask & TVIF_TEXT
2150 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2151 && ISVISIBLE(wineItem))
2152 {
2153 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2154 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2155 }
2156
2157 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2158 {
2159 /* The refresh updates everything, but we can't wait until then. */
2160 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2161
2162 /* if any of the item's values changed and it's not a callback, redraw the item */
2163 if (item_changed(&originalItem, wineItem, tvItem))
2164 {
2165 if (tvItem->mask & TVIF_INTEGRAL)
2166 {
2167 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2168 TREEVIEW_UpdateScrollBars(infoPtr);
2169
2170 TREEVIEW_Invalidate(infoPtr, NULL);
2171 }
2172 else
2173 {
2174 TREEVIEW_UpdateScrollBars(infoPtr);
2175 TREEVIEW_Invalidate(infoPtr, wineItem);
2176 }
2177 }
2178 }
2179
2180 return TRUE;
2181 }
2182
2183 static LRESULT
2184 TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2185 {
2186 TRACE("\n");
2187
2188 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2189 return 0;
2190
2191 return (wineItem->state & mask);
2192 }
2193
2194 static LRESULT
2195 TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2196 {
2197 TREEVIEW_ITEM *retval;
2198
2199 retval = 0;
2200
2201 /* handle all the global data here */
2202 switch (which)
2203 {
2204 case TVGN_CHILD: /* Special case: child of 0 is root */
2205 if (wineItem)
2206 break;
2207 /* fall through */
2208 case TVGN_ROOT:
2209 retval = infoPtr->root->firstChild;
2210 break;
2211
2212 case TVGN_CARET:
2213 retval = infoPtr->selectedItem;
2214 break;
2215
2216 case TVGN_FIRSTVISIBLE:
2217 retval = infoPtr->firstVisible;
2218 break;
2219
2220 case TVGN_DROPHILITE:
2221 retval = infoPtr->dropItem;
2222 break;
2223
2224 case TVGN_LASTVISIBLE:
2225 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2226 break;
2227 }
2228
2229 if (retval)
2230 {
2231 TRACE("flags:%x, returns %p\n", which, retval);
2232 return (LRESULT)retval;
2233 }
2234
2235 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2236
2237 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2238 return FALSE;
2239
2240 switch (which)
2241 {
2242 case TVGN_NEXT:
2243 retval = wineItem->nextSibling;
2244 break;
2245 case TVGN_PREVIOUS:
2246 retval = wineItem->prevSibling;
2247 break;
2248 case TVGN_PARENT:
2249 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2250 break;
2251 case TVGN_CHILD:
2252 retval = wineItem->firstChild;
2253 break;
2254 case TVGN_NEXTVISIBLE:
2255 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2256 break;
2257 case TVGN_PREVIOUSVISIBLE:
2258 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2259 break;
2260 default:
2261 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2262 break;
2263 }
2264
2265 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2266 return (LRESULT)retval;
2267 }
2268
2269
2270 static LRESULT
2271 TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
2272 {
2273 TRACE(" %d\n", infoPtr->uNumItems);
2274 return (LRESULT)infoPtr->uNumItems;
2275 }
2276
2277 static VOID
2278 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2279 {
2280 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2281 {
2282 static const unsigned int state_table[] = { 0, 2, 1 };
2283
2284 unsigned int state;
2285
2286 state = STATEIMAGEINDEX(item->state);
2287 TRACE("state:%x\n", state);
2288 item->state &= ~TVIS_STATEIMAGEMASK;
2289
2290 if (state < 3)
2291 state = state_table[state];
2292
2293 item->state |= INDEXTOSTATEIMAGEMASK(state);
2294
2295 TRACE("state:%x\n", state);
2296 TREEVIEW_Invalidate(infoPtr, item);
2297 }
2298 }
2299
2300
2301 /* Painting *************************************************************/
2302
2303 /* Draw the lines and expand button for an item. Also draws one section
2304 * of the line from item's parent to item's parent's next sibling. */
2305 static void
2306 TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2307 {
2308 LONG centerx, centery;
2309 BOOL lar = ((infoPtr->dwStyle
2310 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2311 > TVS_LINESATROOT);
2312 HBRUSH hbr, hbrOld;
2313
2314 if (!lar && item->iLevel == 0)
2315 return;
2316
2317 hbr = CreateSolidBrush(infoPtr->clrBk);
2318 hbrOld = SelectObject(hdc, hbr);
2319
2320 centerx = (item->linesOffset + item->stateOffset) / 2;
2321 centery = (item->rect.top + item->rect.bottom) / 2;
2322
2323 if (infoPtr->dwStyle & TVS_HASLINES)
2324 {
2325 HPEN hOldPen, hNewPen;
2326 HTREEITEM parent;
2327 LOGBRUSH lb;
2328
2329 /*
2330 * Get a dotted grey pen
2331 */
2332 lb.lbStyle = BS_SOLID;
2333 lb.lbColor = infoPtr->clrLine;
2334 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2335 hOldPen = SelectObject(hdc, hNewPen);
2336
2337 MoveToEx(hdc, item->stateOffset, centery, NULL);
2338 LineTo(hdc, centerx - 1, centery);
2339
2340 if (item->prevSibling || item->parent != infoPtr->root)
2341 {
2342 MoveToEx(hdc, centerx, item->rect.top, NULL);
2343 LineTo(hdc, centerx, centery);
2344 }
2345
2346 if (item->nextSibling)
2347 {
2348 MoveToEx(hdc, centerx, centery, NULL);
2349 LineTo(hdc, centerx, item->rect.bottom + 1);
2350 }
2351
2352 /* Draw the line from our parent to its next sibling. */
2353 parent = item->parent;
2354 while (parent != infoPtr->root)
2355 {
2356 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2357
2358 if (parent->nextSibling
2359 /* skip top-levels unless TVS_LINESATROOT */
2360 && parent->stateOffset > parent->linesOffset)
2361 {
2362 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2363 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2364 }
2365
2366 parent = parent->parent;
2367 }
2368
2369 SelectObject(hdc, hOldPen);
2370 DeleteObject(hNewPen);
2371 }
2372
2373 /*
2374 * Display the (+/-) signs
2375 */
2376
2377 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2378 {
2379 if (item->cChildren)
2380 {
2381 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2382 if (theme)
2383 {
2384 RECT glyphRect = item->rect;
2385 glyphRect.left = item->linesOffset;
2386 glyphRect.right = item->stateOffset;
2387 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2388 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2389 &glyphRect, NULL);
2390 }
2391 else
2392 {
2393 LONG height = item->rect.bottom - item->rect.top;
2394 LONG width = item->stateOffset - item->linesOffset;
2395 LONG rectsize = min(height, width) / 4;
2396 /* plussize = ceil(rectsize * 3/4) */
2397 LONG plussize = (rectsize + 1) * 3 / 4;
2398
2399 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2400 HPEN hOldPen = SelectObject(hdc, hNewPen);
2401
2402 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2403 centerx + rectsize + 2, centery + rectsize + 2);
2404
2405 SelectObject(hdc, hOldPen);
2406 DeleteObject(hNewPen);
2407
2408 if (height < 18 || width < 18)
2409 {
2410 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2411 LineTo(hdc, centerx + plussize, centery);
2412
2413 if (!(item->state & TVIS_EXPANDED))
2414 {
2415 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2416 LineTo(hdc, centerx, centery + plussize);
2417 }
2418 }
2419 else
2420 {
2421 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2422 centerx + plussize, centery + 2);
2423
2424 if (!(item->state & TVIS_EXPANDED))
2425 {
2426 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2427 centerx + 2, centery + plussize);
2428 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2429 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2430 }
2431 }
2432 }
2433 }
2434 }
2435 SelectObject(hdc, hbrOld);
2436 DeleteObject(hbr);
2437 }
2438
2439 static void
2440 TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2441 {
2442 INT cditem;
2443 HFONT hOldFont;
2444 COLORREF oldTextColor, oldTextBkColor;
2445 int centery;
2446 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2447 NMTVCUSTOMDRAW nmcdhdr;
2448
2449 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2450
2451 /* - If item is drop target or it is selected and window is in focus -
2452 * use blue background (COLOR_HIGHLIGHT).
2453 * - If item is selected, window is not in focus, but it has style
2454 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2455 * - Otherwise - use background color
2456 */
2457 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2458 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2459 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2460 {
2461 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2462 {
2463 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2464 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2465 }
2466 else
2467 {
2468 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2469 if (infoPtr->clrText == -1)
2470 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2471 else
2472 nmcdhdr.clrText = infoPtr->clrText;
2473 }
2474 }
2475 else
2476 {
2477 nmcdhdr.clrTextBk = infoPtr->clrBk;
2478 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2479 nmcdhdr.clrText = comctl32_color.clrHighlight;
2480 else if (infoPtr->clrText == -1)
2481 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2482 else
2483 nmcdhdr.clrText = infoPtr->clrText;
2484 }
2485
2486 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2487
2488 /* The custom draw handler can query the text rectangle,
2489 * so get ready. */
2490 /* should already be known, set to 0 when changed */
2491 if (!wineItem->textWidth)
2492 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2493
2494 cditem = 0;
2495
2496 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2497 {
2498 cditem = TREEVIEW_SendCustomDrawItemNotify
2499 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2500 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2501
2502 if (cditem & CDRF_SKIPDEFAULT)
2503 {
2504 SelectObject(hdc, hOldFont);
2505 return;
2506 }
2507 }
2508
2509 if (cditem & CDRF_NEWFONT)
2510 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2511
2512 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2513
2514 /* Set colors. Custom draw handler can change these so we do this after it. */
2515 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2516 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2517
2518 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2519
2520 /*
2521 * Display the images associated with this item
2522 */
2523 {
2524 INT imageIndex;
2525
2526 /* State images are displayed to the left of the Normal image
2527 * image number is in state; zero should be `display no image'.
2528 */
2529 imageIndex = STATEIMAGEINDEX(wineItem->state);
2530
2531 if (infoPtr->himlState && imageIndex)
2532 {
2533 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2534 wineItem->stateOffset,
2535 centery - infoPtr->stateImageHeight / 2,
2536 ILD_NORMAL);
2537 }
2538
2539 /* Now, draw the normal image; can be either selected or
2540 * non-selected image.
2541 */
2542
2543 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2544 {
2545 /* The item is currently selected */
2546 imageIndex = wineItem->iSelectedImage;
2547 }
2548 else
2549 {
2550 /* The item is not selected */
2551 imageIndex = wineItem->iImage;
2552 }
2553
2554 if (infoPtr->himlNormal)
2555 {
2556 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2557
2558 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2559 wineItem->imageOffset,
2560 centery - infoPtr->normalImageHeight / 2,
2561 ILD_NORMAL | ovlIdx);
2562 }
2563 }
2564
2565
2566 /*
2567 * Display the text associated with this item
2568 */
2569
2570 /* Don't paint item's text if it's being edited */
2571 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2572 {
2573 if (wineItem->pszText)
2574 {
2575 RECT rcText;
2576
2577 rcText.top = wineItem->rect.top;
2578 rcText.bottom = wineItem->rect.bottom;
2579 rcText.left = wineItem->textOffset;
2580 rcText.right = rcText.left + wineItem->textWidth + 4;
2581
2582 TRACE("drawing text %s at (%d,%d)-(%d,%d)\n",
2583 debugstr_w(wineItem->pszText),
2584 rcText.left, rcText.top, rcText.right, rcText.bottom);
2585
2586 /* Draw it */
2587 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2588 ETO_CLIPPED | ETO_OPAQUE,
2589 &rcText,
2590 wineItem->pszText,
2591 lstrlenW(wineItem->pszText),
2592 NULL);
2593
2594 /* Draw the box around the selected item */
2595 if ((wineItem == infoPtr->selectedItem) && inFocus)
2596 {
2597 DrawFocusRect(hdc,&rcText);
2598 }
2599
2600 }
2601 }
2602
2603 /* Draw insertion mark if necessary */
2604
2605 if (infoPtr->insertMarkItem)
2606 TRACE("item:%d,mark:%p\n",
2607 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2608 infoPtr->insertMarkItem);
2609
2610 if (wineItem == infoPtr->insertMarkItem)
2611 {
2612 HPEN hNewPen, hOldPen;
2613 int offset;
2614 int left, right;
2615
2616 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2617 hOldPen = SelectObject(hdc, hNewPen);
2618
2619 if (infoPtr->insertBeforeorAfter)
2620 offset = wineItem->rect.bottom - 1;
2621 else
2622 offset = wineItem->rect.top + 1;
2623
2624 left = wineItem->textOffset - 2;
2625 right = wineItem->textOffset + wineItem->textWidth + 2;
2626
2627 MoveToEx(hdc, left, offset - 3, NULL);
2628 LineTo(hdc, left, offset + 4);
2629
2630 MoveToEx(hdc, left, offset, NULL);
2631 LineTo(hdc, right + 1, offset);
2632
2633 MoveToEx(hdc, right, offset + 3, NULL);
2634 LineTo(hdc, right, offset - 4);
2635
2636 SelectObject(hdc, hOldPen);
2637 DeleteObject(hNewPen);
2638 }
2639
2640 if (cditem & CDRF_NOTIFYPOSTPAINT)
2641 {
2642 cditem = TREEVIEW_SendCustomDrawItemNotify
2643 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2644 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2645 }
2646
2647 /* Restore the hdc state */
2648 SetTextColor(hdc, oldTextColor);
2649 SetBkColor(hdc, oldTextBkColor);
2650 SelectObject(hdc, hOldFont);
2651 }
2652
2653 /* Computes treeHeight and treeWidth and updates the scroll bars.
2654 */
2655 static void
2656 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2657 {
2658 TREEVIEW_ITEM *wineItem;
2659 HWND hwnd = infoPtr->hwnd;
2660 BOOL vert = FALSE;
2661 BOOL horz = FALSE;
2662 SCROLLINFO si;
2663 LONG scrollX = infoPtr->scrollX;
2664
2665 infoPtr->treeWidth = 0;
2666 infoPtr->treeHeight = 0;
2667
2668 /* We iterate through all visible items in order to get the tree height
2669 * and width */
2670 wineItem = infoPtr->root->firstChild;
2671
2672 while (wineItem != NULL)
2673 {
2674 if (ISVISIBLE(wineItem))
2675 {
2676 /* actually we draw text at textOffset + 2 */
2677 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2678 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2679
2680 /* This is scroll-adjusted, but we fix this below. */
2681 infoPtr->treeHeight = wineItem->rect.bottom;
2682 }
2683
2684 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2685 }
2686
2687 /* Fix the scroll adjusted treeHeight and treeWidth. */
2688 if (infoPtr->root->firstChild)
2689 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2690
2691 infoPtr->treeWidth += infoPtr->scrollX;
2692
2693 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2694
2695 /* Adding one scroll bar may take up enough space that it forces us
2696 * to add the other as well. */
2697 if (infoPtr->treeHeight > infoPtr->clientHeight)
2698 {
2699 vert = TRUE;
2700
2701 if (infoPtr->treeWidth
2702 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2703 horz = TRUE;
2704 }
2705 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2706 horz = TRUE;
2707
2708 if (!vert && horz && infoPtr->treeHeight
2709 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2710 vert = TRUE;
2711
2712 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2713
2714 si.cbSize = sizeof(SCROLLINFO);
2715 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2716 si.nMin = 0;
2717
2718 if (vert)
2719 {
2720 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2721 if ( si.nPage && NULL != infoPtr->firstVisible)
2722 {
2723 si.nPos = infoPtr->firstVisible->visibleOrder;
2724 si.nMax = infoPtr->maxVisibleOrder - 1;
2725
2726 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2727
2728 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2729 ShowScrollBar(hwnd, SB_VERT, TRUE);
2730 infoPtr->uInternalStatus |= TV_VSCROLL;
2731 }
2732 else
2733 {
2734 if (infoPtr->uInternalStatus & TV_VSCROLL)
2735 ShowScrollBar(hwnd, SB_VERT, FALSE);
2736 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2737 }
2738 }
2739 else
2740 {
2741 if (infoPtr->uInternalStatus & TV_VSCROLL)
2742 ShowScrollBar(hwnd, SB_VERT, FALSE);
2743 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2744 }
2745
2746 if (horz)
2747 {
2748 si.nPage = infoPtr->clientWidth;
2749 si.nPos = infoPtr->scrollX;
2750 si.nMax = infoPtr->treeWidth - 1;
2751
2752 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2753 {
2754 si.nPos = si.nMax - max( si.nPage-1, 0 );
2755 scrollX = si.nPos;
2756 }
2757
2758 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2759 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2760 infoPtr->uInternalStatus |= TV_HSCROLL;
2761
2762 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2763 TREEVIEW_HScroll(infoPtr,
2764 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2765 }
2766 else
2767 {
2768 if (infoPtr->uInternalStatus & TV_HSCROLL)
2769 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2770 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2771
2772 scrollX = 0;
2773 if (infoPtr->scrollX != 0)
2774 {
2775 TREEVIEW_HScroll(infoPtr,
2776 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2777 }
2778 }
2779
2780 if (!horz)
2781 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2782 }
2783
2784 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2785 static LRESULT
2786 TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
2787 {
2788 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2789 RECT rect;
2790
2791 GetClientRect(infoPtr->hwnd, &rect);
2792 FillRect(hDC, &rect, hBrush);
2793 DeleteObject(hBrush);
2794
2795 return 1;
2796 }
2797
2798 static void
2799 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
2800 {
2801 HWND hwnd = infoPtr->hwnd;
2802 RECT rect = *rc;
2803 TREEVIEW_ITEM *wineItem;
2804
2805 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2806 {
2807 TRACE("empty window\n");
2808 return;
2809 }
2810
2811 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2812 hdc, rect);
2813
2814 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2815 {
2816 ReleaseDC(hwnd, hdc);
2817 return;
2818 }
2819
2820 for (wineItem = infoPtr->root->firstChild;
2821 wineItem != NULL;
2822 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2823 {
2824 if (ISVISIBLE(wineItem))
2825 {
2826 /* Avoid unneeded calculations */
2827 if (wineItem->rect.top > rect.bottom)
2828 break;
2829 if (wineItem->rect.bottom < rect.top)
2830 continue;
2831
2832 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2833 }
2834 }
2835
2836 TREEVIEW_UpdateScrollBars(infoPtr);
2837
2838 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2839 infoPtr->cdmode =
2840 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2841 }
2842
2843 static void
2844 TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2845 {
2846 if (item != NULL)
2847 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2848 else
2849 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2850 }
2851
2852 static LRESULT
2853 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2854 {
2855 HDC hdc;
2856 PAINTSTRUCT ps;
2857 RECT rc;
2858
2859 TRACE("\n");
2860
2861 if (wParam)
2862 {
2863 hdc = (HDC)wParam;
2864 GetClientRect(infoPtr->hwnd, &rc);
2865 TREEVIEW_EraseBackground(infoPtr, hdc);
2866 }
2867 else
2868 {
2869 hdc = BeginPaint(infoPtr->hwnd, &ps);
2870 rc = ps.rcPaint;
2871 }
2872
2873 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2874 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2875
2876 if (!wParam)
2877 EndPaint(infoPtr->hwnd, &ps);
2878
2879 return 0;
2880 }
2881
2882
2883 /* Sorting **************************************************************/
2884
2885 /***************************************************************************
2886 * Forward the DPA local callback to the treeview owner callback
2887 */
2888 static INT WINAPI
2889 TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
2890 {
2891 /* Forward the call to the client-defined callback */
2892 return pCallBackSort->lpfnCompare(first->lParam,
2893 second->lParam,
2894 pCallBackSort->lParam);
2895 }
2896
2897 /***************************************************************************
2898 * Treeview native sort routine: sort on item text.
2899 */
2900 static INT WINAPI
2901 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2902 TREEVIEW_INFO *infoPtr)
2903 {
2904 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2905 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2906
2907 if(first->pszText && second->pszText)
2908 return lstrcmpiW(first->pszText, second->pszText);
2909 else if(first->pszText)
2910 return -1;
2911 else if(second->pszText)
2912 return 1;
2913 else
2914 return 0;
2915 }
2916
2917 /* Returns the number of physical children belonging to item. */
2918 static INT
2919 TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2920 {
2921 INT cChildren = 0;
2922 HTREEITEM hti;
2923
2924 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2925 cChildren++;
2926
2927 return cChildren;
2928 }
2929
2930 /* Returns a DPA containing a pointer to each physical child of item in
2931 * sibling order. If item has no children, an empty DPA is returned. */
2932 static HDPA
2933 TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2934 {
2935 HTREEITEM child = item->firstChild;
2936
2937 HDPA list = DPA_Create(8);
2938 if (list == 0) return NULL;
2939
2940 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2941 {
2942 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2943 {
2944 DPA_Destroy(list);
2945 return NULL;
2946 }
2947 }
2948
2949 return list;
2950 }
2951
2952 /***************************************************************************
2953 * Setup the treeview structure with regards of the sort method
2954 * and sort the children of the TV item specified in lParam
2955 * fRecurse: currently unused. Should be zero.
2956 * parent: if pSort!=NULL, should equal pSort->hParent.
2957 * otherwise, item which child items are to be sorted.
2958 * pSort: sort method info. if NULL, sort on item text.
2959 * if non-NULL, sort on item's lParam content, and let the
2960 * application decide what that means. See also TVM_SORTCHILDRENCB.
2961 */
2962
2963 static LRESULT
2964 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2965 LPTVSORTCB pSort)
2966 {
2967 INT cChildren;
2968 PFNDPACOMPARE pfnCompare;
2969 LPARAM lpCompare;
2970
2971 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2972 if (parent == TVI_ROOT || parent == NULL)
2973 parent = infoPtr->root;
2974
2975 /* Check for a valid handle to the parent item */
2976 if (!TREEVIEW_ValidItem(infoPtr, parent))
2977 {
2978 ERR("invalid item hParent=%p\n", parent);
2979 return FALSE;
2980 }
2981
2982 if (pSort)
2983 {
2984 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2985 lpCompare = (LPARAM)pSort;
2986 }
2987 else
2988 {
2989 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2990 lpCompare = (LPARAM)infoPtr;
2991 }
2992
2993 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2994
2995 /* Make sure there is something to sort */
2996 if (cChildren > 1)
2997 {
2998 /* TREEVIEW_ITEM rechaining */
2999 INT count = 0;
3000 HTREEITEM item = 0;
3001 HTREEITEM nextItem = 0;
3002 HTREEITEM prevItem = 0;
3003
3004 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
3005
3006 if (sortList == NULL)
3007 return FALSE;
3008
3009 /* let DPA sort the list */
3010 DPA_Sort(sortList, pfnCompare, lpCompare);
3011
3012 /* The order of DPA entries has been changed, so fixup the
3013 * nextSibling and prevSibling pointers. */
3014
3015 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3016 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3017 {
3018 /* link the two current item toghether */
3019 item->nextSibling = nextItem;
3020 nextItem->prevSibling = item;
3021
3022 if (prevItem == NULL)
3023 {
3024 /* this is the first item, update the parent */
3025 parent->firstChild = item;
3026 item->prevSibling = NULL;
3027 }
3028 else
3029 {
3030 /* fix the back chaining */
3031 item->prevSibling = prevItem;
3032 }
3033
3034 /* get ready for the next one */
3035 prevItem = item;
3036 item = nextItem;
3037 }
3038
3039 /* the last item is pointed to by item and never has a sibling */
3040 item->nextSibling = NULL;
3041 parent->lastChild = item;
3042
3043 DPA_Destroy(sortList);
3044
3045 TREEVIEW_VerifyTree(infoPtr);
3046
3047 if (parent->state & TVIS_EXPANDED)
3048 {
3049 int visOrder = infoPtr->firstVisible->visibleOrder;
3050
3051 if (parent == infoPtr->root)
3052 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3053 else
3054 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3055
3056 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3057 {
3058 TREEVIEW_ITEM *item;
3059
3060 for (item = infoPtr->root->firstChild; item != NULL;
3061 item = TREEVIEW_GetNextListItem(infoPtr, item))
3062 {
3063 if (item->visibleOrder == visOrder)
3064 break;
3065 }
3066
3067 if (!item) item = parent->firstChild;
3068 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3069 }
3070
3071 TREEVIEW_Invalidate(infoPtr, NULL);
3072 }
3073
3074 return TRUE;
3075 }
3076 return FALSE;
3077 }
3078
3079
3080 /***************************************************************************
3081 * Setup the treeview structure with regards of the sort method
3082 * and sort the children of the TV item specified in lParam
3083 */
3084 static LRESULT
3085 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3086 {
3087 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3088 }
3089
3090
3091 /***************************************************************************
3092 * Sort the children of the TV item specified in lParam.
3093 */
3094 static LRESULT
3095 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3096 {
3097 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3098 }
3099
3100
3101 /* Expansion/Collapse ***************************************************/
3102
3103 static BOOL
3104 TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3105 UINT action)
3106 {
3107 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3108 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3109 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3110 0, wineItem);
3111 }
3112
3113 static VOID
3114 TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3115 UINT action)
3116 {
3117 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3118 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3119 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3120 0, wineItem);
3121 }
3122
3123
3124 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3125 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3126 static BOOL
3127 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3128 BOOL bRemoveChildren, BOOL bUser)
3129 {
3130 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3131 BOOL bSetSelection, bSetFirstVisible;
3132 RECT scrollRect;
3133 LONG scrollDist = 0;
3134 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3135
3136 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3137
3138 if (!(wineItem->state & TVIS_EXPANDED))
3139 return FALSE;
3140
3141 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3142 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3143
3144 if (wineItem->firstChild == NULL)
3145 return FALSE;
3146
3147 wineItem->state &= ~TVIS_EXPANDED;
3148
3149 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3150 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3151
3152 bSetSelection = (infoPtr->selectedItem != NULL
3153 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3154
3155 bSetFirstVisible = (infoPtr->firstVisible != NULL
3156 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3157
3158 tmpItem = wineItem;
3159 while (tmpItem)
3160 {
3161 if (tmpItem->nextSibling)
3162 {
3163 nextItem = tmpItem->nextSibling;
3164 break;
3165 }
3166 tmpItem = tmpItem->parent;
3167 }
3168
3169 if (nextItem)
3170 scrollDist = nextItem->rect.top;
3171
3172 if (bRemoveChildren)
3173 {
3174 INT old_cChildren = wineItem->cChildren;
3175 TRACE("TVE_COLLAPSERESET\n");
3176 wineItem->state &= ~TVIS_EXPANDEDONCE;
3177 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3178 wineItem->cChildren = old_cChildren;
3179 }
3180
3181 if (wineItem->firstChild)
3182 {
3183 TREEVIEW_ITEM *item, *sibling;
3184
3185 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3186
3187 for (item = wineItem->firstChild; item != sibling;
3188 item = TREEVIEW_GetNextListItem(infoPtr, item))
3189 {
3190 item->visibleOrder = -1;
3191 }
3192 }
3193
3194 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3195
3196 if (nextItem)
3197 scrollDist = -(scrollDist - nextItem->rect.top);
3198
3199 if (bSetSelection)
3200 {
3201 /* Don't call DoSelectItem, it sends notifications. */
3202 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3203 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3204 wineItem->state |= TVIS_SELECTED;
3205 infoPtr->selectedItem = wineItem;
3206 }
3207
3208 TREEVIEW_UpdateScrollBars(infoPtr);
3209
3210 scrollRect.left = 0;
3211 scrollRect.right = infoPtr->clientWidth;
3212 scrollRect.bottom = infoPtr->clientHeight;
3213
3214 if (nextItem)
3215 {
3216 scrollRect.top = nextItem->rect.top;
3217
3218 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3219 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3220 TREEVIEW_Invalidate(infoPtr, wineItem);
3221 } else {
3222 scrollRect.top = wineItem->rect.top;
3223 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3224 }
3225
3226 TREEVIEW_SetFirstVisible(infoPtr,
3227 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3228 TRUE);
3229
3230 return TRUE;
3231 }
3232
3233 static BOOL
3234 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3235 BOOL bExpandPartial, BOOL bUser)
3236 {
3237 LONG scrollDist;
3238 LONG orgNextTop = 0;
3239 RECT scrollRect;
3240 TREEVIEW_ITEM *nextItem, *tmpItem;
3241
3242 TRACE("\n");
3243
3244 if (wineItem->state & TVIS_EXPANDED)
3245 return TRUE;
3246
3247 tmpItem = wineItem; nextItem = NULL;
3248 while (tmpItem)
3249 {
3250 if (tmpItem->nextSibling)
3251 {
3252 nextItem = tmpItem->nextSibling;
3253 break;
3254 }
3255 tmpItem = tmpItem->parent;
3256 }
3257
3258 if (nextItem)
3259 orgNextTop = nextItem->rect.top;
3260
3261 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3262
3263 if (bUser || ((wineItem->cChildren != 0) &&
3264 !(wineItem->state & TVIS_EXPANDEDONCE)))
3265 {
3266 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3267 {
3268 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3269 return FALSE;
3270 }
3271
3272 if (!wineItem->firstChild)
3273 return FALSE;
3274
3275 wineItem->state |= TVIS_EXPANDED;
3276 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3277 wineItem->state |= TVIS_EXPANDEDONCE;
3278 }
3279 else
3280 {
3281 if (!wineItem->firstChild)
3282 return FALSE;
3283
3284 /* this item has already been expanded */
3285 wineItem->state |= TVIS_EXPANDED;
3286 }
3287
3288 if (bExpandPartial)
3289 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3290
3291 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3292 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3293 TREEVIEW_UpdateScrollBars(infoPtr);
3294
3295 scrollRect.left = 0;
3296 scrollRect.bottom = infoPtr->treeHeight;
3297 scrollRect.right = infoPtr->clientWidth;
3298 if (nextItem)
3299 {
3300 scrollDist = nextItem->rect.top - orgNextTop;
3301 scrollRect.top = orgNextTop;
3302
3303 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3304 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3305 TREEVIEW_Invalidate (infoPtr, wineItem);
3306 } else {
3307 scrollRect.top = wineItem->rect.top;
3308 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3309 }
3310
3311 /* Scroll up so that as many children as possible are visible.
3312 * This fails when expanding causes an HScroll bar to appear, but we
3313 * don't know that yet, so the last item is obscured. */
3314 if (wineItem->firstChild != NULL)
3315 {
3316 int nChildren = wineItem->lastChild->visibleOrder
3317 - wineItem->firstChild->visibleOrder + 1;
3318
3319 int visible_pos = wineItem->visibleOrder
3320 - infoPtr->firstVisible->visibleOrder;
3321
3322 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3323
3324 if (visible_pos > 0 && nChildren > rows_below)
3325 {
3326 int scroll = nChildren - rows_below;
3327
3328 if (scroll > visible_pos)
3329 scroll = visible_pos;
3330
3331 if (scroll > 0)
3332 {
3333 TREEVIEW_ITEM *newFirstVisible
3334 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3335 scroll);
3336
3337
3338 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3339 }
3340 }
3341 }
3342
3343 return TRUE;
3344 }
3345
3346 static BOOL
3347 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3348 {
3349 TRACE("\n");
3350
3351 if (wineItem->state & TVIS_EXPANDED)
3352 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3353 else
3354 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3355 }
3356
3357 static VOID
3358 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3359 {
3360 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3361
3362 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3363 {
3364 if (TREEVIEW_HasChildren(infoPtr, item))
3365 TREEVIEW_ExpandAll(infoPtr, item);
3366 }
3367 }
3368
3369 /* Note:If the specified item is the child of a collapsed parent item,
3370 the parent's list of child items is (recursively) expanded to reveal the
3371 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3372 know if it also applies here.
3373 */
3374
3375 static LRESULT
3376 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3377 {
3378 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3379 return 0;
3380
3381 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3382 TREEVIEW_ItemName(wineItem), flag,
3383 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3384
3385 switch (flag & TVE_TOGGLE)
3386 {
3387 case TVE_COLLAPSE:
3388 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3389 FALSE);
3390
3391 case TVE_EXPAND:
3392 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3393 FALSE);
3394
3395 case TVE_TOGGLE:
3396 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3397
3398 default:
3399 return 0;
3400 }
3401
3402 #if 0
3403 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3404 #endif
3405 }
3406
3407 /* Hit-Testing **********************************************************/
3408
3409 static TREEVIEW_ITEM *
3410 TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
3411 {
3412 TREEVIEW_ITEM *wineItem;
3413 LONG row;
3414
3415 if (!infoPtr->firstVisible)
3416 return NULL;
3417
3418 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3419
3420 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3421 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3422 {
3423 if (row >= wineItem->visibleOrder
3424 && row < wineItem->visibleOrder + wineItem->iIntegral)
3425 break;
3426 }
3427
3428 return wineItem;
3429 }
3430
3431 static LRESULT
3432 TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3433 {
3434 TREEVIEW_ITEM *wineItem;
3435 RECT rect;
3436 UINT status;
3437 LONG x, y;
3438
3439 lpht->hItem = 0;
3440 GetClientRect(infoPtr->hwnd, &rect);
3441 status = 0;
3442 x = lpht->pt.x;
3443 y = lpht->pt.y;
3444
3445 if (x < rect.left)
3446 {
3447 status |= TVHT_TOLEFT;
3448 }
3449 else if (x > rect.right)
3450 {
3451 status |= TVHT_TORIGHT;
3452 }
3453
3454 if (y < rect.top)
3455 {
3456 status |= TVHT_ABOVE;
3457 }
3458 else if (y > rect.bottom)
3459 {
3460 status |= TVHT_BELOW;
3461 }
3462
3463 if (status)
3464 {
3465 lpht->flags = status;
3466 return (LRESULT)(HTREEITEM)NULL;
3467 }
3468
3469 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3470 if (!wineItem)
3471 {
3472 lpht->flags = TVHT_NOWHERE;
3473 return (LRESULT)(HTREEITEM)NULL;
3474 }
3475
3476 if (x >= wineItem->textOffset + wineItem->textWidth)
3477 {
3478 lpht->flags = TVHT_ONITEMRIGHT;
3479 }
3480 else if (x >= wineItem->textOffset)
3481 {
3482 lpht->flags = TVHT_ONITEMLABEL;
3483 }
3484 else if (x >= wineItem->imageOffset)
3485 {
3486 lpht->flags = TVHT_ONITEMICON;
3487 }
3488 else if (x >= wineItem->stateOffset)
3489 {
3490 lpht->flags = TVHT_ONITEMSTATEICON;
3491 }
3492 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3493 {
3494 lpht->flags = TVHT_ONITEMBUTTON;
3495 }
3496 else
3497 {
3498 lpht->flags = TVHT_ONITEMINDENT;
3499 }
3500
3501 lpht->hItem = wineItem;
3502 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3503
3504 return (LRESULT)wineItem;
3505 }
3506
3507 /* Item Label Editing ***************************************************/
3508
3509 static LRESULT
3510 TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
3511 {
3512 return (LRESULT)infoPtr->hwndEdit;
3513 }
3514
3515 static LRESULT CALLBACK
3516 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3517 {
3518 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3519 BOOL bCancel = FALSE;
3520 LRESULT rc;
3521
3522 switch (uMsg)
3523 {
3524 case WM_PAINT:
3525 TRACE("WM_PAINT start\n");
3526 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3527 lParam);
3528 TRACE("WM_PAINT done\n");
3529 return rc;
3530
3531 case WM_KILLFOCUS:
3532 if (infoPtr->bIgnoreEditKillFocus)
3533 return TRUE;
3534 break;
3535
3536 case WM_GETDLGCODE:
3537 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3538
3539 case WM_KEYDOWN:
3540 if (wParam == (WPARAM)VK_ESCAPE)
3541 {
3542 bCancel = TRUE;
3543 break;
3544 }
3545 else if (wParam == (WPARAM)VK_RETURN)
3546 {
3547 break;
3548 }
3549
3550 /* fall through */
3551 default:
3552 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3553 }
3554
3555 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3556 /* eg. Using a messagebox */
3557
3558 infoPtr->bIgnoreEditKillFocus = TRUE;
3559 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3560 infoPtr->bIgnoreEditKillFocus = FALSE;
3561
3562 return 0;
3563 }
3564
3565
3566 /* should handle edit control messages here */
3567
3568 static LRESULT
3569 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3570 {
3571 TRACE("%x %ld\n", wParam, lParam);
3572
3573 switch (HIWORD(wParam))
3574 {
3575 case EN_UPDATE:
3576 {
3577 /*
3578 * Adjust the edit window size
3579 */
3580 WCHAR buffer[1024];
3581 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3582 HDC hdc = GetDC(infoPtr->hwndEdit);
3583 SIZE sz;
3584 int len;
3585 HFONT hFont, hOldFont = 0;
3586
3587 infoPtr->bLabelChanged = TRUE;
3588
3589 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3590
3591 /* Select font to get the right dimension of the string */
3592 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3593
3594 if (hFont != 0)
3595 {
3596 hOldFont = SelectObject(hdc, hFont);
3597 }
3598
3599 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3600 {
3601 TEXTMETRICW textMetric;
3602
3603 /* Add Extra spacing for the next character */
3604 GetTextMetricsW(hdc, &textMetric);
3605 sz.cx += (textMetric.tmMaxCharWidth * 2);
3606
3607 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3608 sz.cx = min(sz.cx,
3609 infoPtr->clientWidth - editItem->textOffset + 2);
3610
3611 SetWindowPos(infoPtr->hwndEdit,
3612 HWND_TOP,
3613 0,
3614 0,
3615 sz.cx,
3616 editItem->rect.bottom - editItem->rect.top + 3,
3617 SWP_NOMOVE | SWP_DRAWFRAME);
3618 }
3619
3620 if (hFont != 0)
3621 {
3622 SelectObject(hdc, hOldFont);
3623 }
3624
3625 ReleaseDC(infoPtr->hwnd, hdc);
3626 break;
3627 }
3628
3629 default:
3630 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3631 }
3632
3633 return 0;
3634 }
3635
3636 static HWND
3637 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3638 {
3639 HWND hwnd = infoPtr->hwnd;
3640 HWND hwndEdit;
3641 SIZE sz;
3642 TREEVIEW_ITEM *editItem = hItem;
3643 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3644 HDC hdc;
3645 HFONT hOldFont=0;
3646 TEXTMETRICW textMetric;
3647 static const WCHAR EditW[] = {'E','d','i','t',0};
3648
3649 TRACE("%p %p\n", hwnd, hItem);
3650 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3651 return NULL;
3652
3653 if (infoPtr->hwndEdit)
3654 return infoPtr->hwndEdit;
3655
3656 infoPtr->bLabelChanged = FALSE;
3657
3658 /* Make sure that edit item is selected */
3659 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3660 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3661
3662 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3663
3664 hdc = GetDC(hwnd);
3665 /* Select the font to get appropriate metric dimensions */
3666 if (infoPtr->hFont != 0)
3667 {
3668 hOldFont = SelectObject(hdc, infoPtr->hFont);
3669 }
3670
3671 /* Get string length in pixels */
3672 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3673 &sz);
3674
3675 /* Add Extra spacing for the next character */
3676 GetTextMetricsW(hdc, &textMetric);
3677 sz.cx += (textMetric.tmMaxCharWidth * 2);
3678
3679 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3680 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3681
3682 if (infoPtr->hFont != 0)
3683 {
3684 SelectObject(hdc, hOldFont);
3685 }
3686
3687 ReleaseDC(hwnd, hdc);
3688 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3689 EditW,
3690 0,
3691 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3692 WS_CLIPSIBLINGS | ES_WANTRETURN |
3693 ES_LEFT, editItem->textOffset - 2,
3694 editItem->rect.top - 1, sz.cx + 3,
3695 editItem->rect.bottom -
3696 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3697 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3698
3699 infoPtr->hwndEdit = hwndEdit;
3700
3701 /* Get a 2D border. */
3702 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3703 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3704 SetWindowLongW(hwndEdit, GWL_STYLE,
3705 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3706
3707 SendMessageW(hwndEdit, WM_SETFONT,
3708 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3709
3710 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3711 (DWORD_PTR)
3712 TREEVIEW_Edit_SubclassProc);
3713
3714 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3715 {
3716 DestroyWindow(hwndEdit);
3717 infoPtr->hwndEdit = 0;
3718 return NULL;
3719 }
3720
3721 infoPtr->selectedItem = hItem;
3722 SetWindowTextW(hwndEdit, editItem->pszText);
3723 SetFocus(hwndEdit);
3724 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3725 ShowWindow(hwndEdit, SW_SHOW);
3726
3727 return hwndEdit;
3728 }
3729
3730
3731 static LRESULT
3732 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3733 {
3734 HWND hwnd = infoPtr->hwnd;
3735 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3736 NMTVDISPINFOW tvdi;
3737 BOOL bCommit;
3738 WCHAR tmpText[1024] = { '\0' };
3739 WCHAR *newText = tmpText;
3740 int iLength = 0;
3741
3742 if (!infoPtr->hwndEdit)
3743 return FALSE;
3744
3745 tvdi.hdr.hwndFrom = hwnd;
3746 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3747 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3748 tvdi.item.mask = 0;
3749 tvdi.item.hItem = editedItem;
3750 tvdi.item.state = editedItem->state;
3751 tvdi.item.lParam = editedItem->lParam;
3752
3753 if (!bCancel)
3754 {
3755 if (!infoPtr->bNtfUnicode)
3756 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3757 else
3758 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3759
3760 if (iLength >= 1023)
3761 {
3762 ERR("Insufficient space to retrieve new item label\n");
3763 }
3764
3765 tvdi.item.mask = TVIF_TEXT;
3766 tvdi.item.pszText = tmpText;
3767 tvdi.item.cchTextMax = iLength + 1;
3768 }
3769 else
3770 {
3771 tvdi.item.pszText = NULL;
3772 tvdi.item.cchTextMax = 0;
3773 }
3774
3775 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
3776 (WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
3777
3778 if (!bCancel && bCommit) /* Apply the changes */
3779 {
3780 if (!infoPtr->bNtfUnicode)
3781 {
3782 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3783 newText = Alloc(len * sizeof(WCHAR));
3784 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3785 iLength = len - 1;
3786 }
3787
3788 if (strcmpW(newText, editedItem->pszText) != 0)
3789 {
3790 if (NULL == ReAlloc(editedItem->pszText, iLength + 1))
3791 {
3792 ERR("OutOfMemory, cannot allocate space for label\n");
3793 DestroyWindow(infoPtr->hwndEdit);
3794 infoPtr->hwndEdit = 0;
3795 return FALSE;
3796 }
3797 else
3798 {
3799 editedItem->cchTextMax = iLength + 1;
3800 strcpyW(editedItem->pszText, newText);
3801 }
3802 }
3803 if(newText != tmpText) Free(newText);
3804 }
3805
3806 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3807 DestroyWindow(infoPtr->hwndEdit);
3808 infoPtr->hwndEdit = 0;
3809 return TRUE;
3810 }
3811
3812 static LRESULT
3813 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3814 {
3815 if (wParam != TV_EDIT_TIMER)
3816 {
3817 ERR("got unknown timer\n");
3818 return 1;
3819 }
3820
3821 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3822 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3823
3824 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3825
3826 return 0;
3827 }
3828
3829
3830 /* Mouse Tracking/Drag **************************************************/
3831
3832 /***************************************************************************
3833 * This is quite unusual piece of code, but that's how it's implemented in
3834 * Windows.
3835 */
3836 static LRESULT
3837 TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
3838 {
3839 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3840 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3841 RECT r;
3842 MSG msg;
3843
3844 r.top = pt.y - cyDrag;
3845 r.left = pt.x - cxDrag;
3846 r.bottom = pt.y + cyDrag;
3847 r.right = pt.x + cxDrag;
3848
3849 SetCapture(infoPtr->hwnd);
3850
3851 while (1)
3852 {
3853 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3854 {
3855 if (msg.message == WM_MOUSEMOVE)
3856 {
3857 pt.x = (short)LOWORD(msg.lParam);
3858 pt.y = (short)HIWORD(msg.lParam);
3859 if (PtInRect(&r, pt))
3860 continue;
3861 else
3862 {
3863 ReleaseCapture();
3864 return 1;
3865 }
3866 }
3867 else if (msg.message >= WM_LBUTTONDOWN &&
3868 msg.message <= WM_RBUTTONDBLCLK)
3869 {
3870 if (msg.message == WM_RBUTTONUP)
3871 TREEVIEW_RButtonUp(infoPtr, &pt);
3872 break;
3873 }
3874
3875 DispatchMessageW(&msg);
3876 }
3877
3878 if (GetCapture() != infoPtr->hwnd)
3879 return 0;
3880 }
3881
3882 ReleaseCapture();
3883 return 0;
3884 }
3885
3886
3887 static LRESULT
3888 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3889 {
3890 TREEVIEW_ITEM *wineItem;
3891 TVHITTESTINFO hit;
3892
3893 TRACE("\n");
3894 SetFocus(infoPtr->hwnd);
3895
3896 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3897 {
3898 /* If there is pending 'edit label' event - kill it now */
3899 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3900 }
3901
3902 hit.pt.x = (short)LOWORD(lParam);
3903 hit.pt.y = (short)HIWORD(lParam);
3904
3905 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3906 if (!wineItem)
3907 return 0;
3908 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3909
3910 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3911 { /* FIXME! */
3912 switch (hit.flags)
3913 {
3914 case TVHT_ONITEMRIGHT:
3915 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3916 break;
3917
3918 case TVHT_ONITEMINDENT:
3919 if (!(infoPtr->dwStyle & TVS_HASLINES))
3920 {
3921 break;
3922 }
3923 else
3924 {
3925 int level = hit.pt.x / infoPtr->uIndent;
3926 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3927
3928 while (wineItem->iLevel > level)
3929 {
3930 wineItem = wineItem->parent;
3931 }
3932
3933 /* fall through */
3934 }
3935
3936 case TVHT_ONITEMLABEL:
3937 case TVHT_ONITEMICON:
3938 case TVHT_ONITEMBUTTON:
3939 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3940 break;
3941
3942 case TVHT_ONITEMSTATEICON:
3943 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3944 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3945 else
3946 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3947 break;
3948 }
3949 }
3950 return TRUE;
3951 }
3952
3953
3954 static LRESULT
3955 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3956 {
3957 HWND hwnd = infoPtr->hwnd;
3958 TVHITTESTINFO ht;
3959 BOOL bTrack, bDoLabelEdit;
3960 HTREEITEM tempItem;
3961
3962 /* If Edit control is active - kill it and return.
3963 * The best way to do it is to set focus to itself.
3964 * Edit control subclassed procedure will automatically call
3965 * EndEditLabelNow.
3966 */
3967 if (infoPtr->hwndEdit)
3968 {
3969 SetFocus(hwnd);
3970 return 0;
3971 }
3972
3973 ht.pt.x = (short)LOWORD(lParam);
3974 ht.pt.y = (short)HIWORD(lParam);
3975
3976 TREEVIEW_HitTest(infoPtr, &ht);
3977 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3978
3979 /* update focusedItem and redraw both items */
3980 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3981 {
3982 infoPtr->focusedItem = ht.hItem;
3983 InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
3984
3985 if(infoPtr->selectedItem)
3986 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3987 }
3988
3989 bTrack = (ht.flags & TVHT_ONITEM)
3990 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3991
3992 /*
3993 * If the style allows editing and the node is already selected
3994 * and the click occurred on the item label...
3995 */
3996 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
3997 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
3998
3999 /* Send NM_CLICK right away */
4000 if (!bTrack)
4001 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4002 goto setfocus;
4003
4004 if (ht.flags & TVHT_ONITEMBUTTON)
4005 {
4006 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4007 goto setfocus;
4008 }
4009 else if (bTrack)
4010 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4011 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4012 {
4013 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4014 infoPtr->dropItem = ht.hItem;
4015
4016 /* clean up focusedItem as we dragged and won't select this item */
4017 if(infoPtr->focusedItem)
4018 {
4019 /* refresh the item that was focused */
4020 tempItem = infoPtr->focusedItem;
4021 infoPtr->focusedItem = 0;
4022 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4023
4024 /* refresh the selected item to return the filled background */
4025 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4026 }
4027
4028 return 0;
4029 }
4030 }
4031
4032 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4033 goto setfocus;
4034
4035 if (bDoLabelEdit)
4036 {
4037 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4038 KillTimer(hwnd, TV_EDIT_TIMER);
4039
4040 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4041 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4042 }
4043 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4044 {
4045 /*
4046 * if we are TVS_SINGLEEXPAND then we want this single click to
4047 * do a bunch of things.
4048 */
4049 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4050 (infoPtr->hwndEdit == 0))
4051 {
4052 TREEVIEW_ITEM *SelItem;
4053
4054 /*
4055 * Send the notification
4056 */
4057 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4058
4059 /*
4060 * Close the previous selection all the way to the root
4061 * as long as the new selection is not a child
4062 */
4063 if((infoPtr->selectedItem)
4064 && (infoPtr->selectedItem != ht.hItem))
4065 {
4066 BOOL closeit = TRUE;
4067 SelItem = ht.hItem;
4068
4069 /* determine if the hitItem is a child of the currently selected item */
4070 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4071 {
4072 closeit = (SelItem != infoPtr->selectedItem);
4073 SelItem = SelItem->parent;
4074 }
4075
4076 if(closeit)
4077 {
4078 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4079 SelItem = infoPtr->selectedItem;
4080
4081 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4082 {
4083 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4084 SelItem = SelItem->parent;
4085 }
4086 }
4087 }
4088
4089 /*
4090 * Expand the current item
4091 */
4092 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4093 }
4094
4095 /* Select the current item */
4096 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4097 }
4098 else if (ht.flags & TVHT_ONITEMSTATEICON)
4099 {
4100 /* TVS_CHECKBOXES requires us to toggle the current state */
4101 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4102 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4103 }
4104
4105 setfocus:
4106 SetFocus(hwnd);
4107 return 0;
4108 }
4109
4110
4111 static LRESULT
4112 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4113 {
4114 TVHITTESTINFO ht;
4115
4116 if (infoPtr->hwndEdit)
4117 {
4118 SetFocus(infoPtr->hwnd);
4119 return 0;
4120 }
4121
4122 ht.pt.x = (short)LOWORD(lParam);
4123 ht.pt.y = (short)HIWORD(lParam);
4124
4125 TREEVIEW_HitTest(infoPtr, &ht);
4126
4127 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4128 {
4129 if (ht.hItem)
4130 {
4131 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4132 infoPtr->dropItem = ht.hItem;
4133 }
4134 }
4135 else
4136 {
4137 SetFocus(infoPtr->hwnd);
4138 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4139 }
4140
4141 return 0;
4142 }
4143
4144 static LRESULT
4145 TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
4146 {
4147 return 0;
4148 }
4149
4150
4151 static LRESULT
4152 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4153 {
4154 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4155 INT cx, cy;
4156 HDC hdc, htopdc;
4157 HWND hwtop;
4158 HBITMAP hbmp, hOldbmp;
4159 SIZE size;
4160 RECT rc;
4161 HFONT hOldFont;
4162
4163 TRACE("\n");
4164
4165 if (!(infoPtr->himlNormal))
4166 return 0;
4167
4168 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4169 return 0;
4170
4171 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4172
4173 hwtop = GetDesktopWindow();
4174 htopdc = GetDC(hwtop);
4175 hdc = CreateCompatibleDC(htopdc);
4176
4177 hOldFont = SelectObject(hdc, infoPtr->hFont);
4178 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4179 &size);
4180 TRACE("%d %d %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4181 strlenW(dragItem->pszText));
4182 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4183 hOldbmp = SelectObject(hdc, hbmp);
4184
4185 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4186 size.cx += cx;
4187 if (cy > size.cy)
4188 size.cy = cy;
4189
4190 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4191 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4192 ILD_NORMAL);
4193
4194 /*
4195 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4196 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4197 */
4198
4199 /* draw item text */
4200
4201 SetRect(&rc, cx, 0, size.cx, size.cy);
4202 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4203 DT_LEFT);
4204 SelectObject(hdc, hOldFont);
4205 SelectObject(hdc, hOldbmp);
4206
4207 ImageList_Add(infoPtr->dragList, hbmp, 0);
4208
4209 DeleteDC(hdc);
4210 DeleteObject(hbmp);
4211 ReleaseDC(hwtop, htopdc);
4212
4213 return (LRESULT)infoPtr->dragList;
4214 }
4215
4216 /* Selection ************************************************************/
4217
4218 static LRESULT
4219 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4220 INT cause)
4221 {
4222 TREEVIEW_ITEM *prevSelect;
4223 RECT rcFocused;
4224
4225 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4226
4227 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4228 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4229 newSelect ? newSelect->state : 0);
4230
4231 /* reset and redraw focusedItem if focusedItem was set so we don't */
4232 /* have to worry about the previously focused item when we set a new one */
4233 if(infoPtr->focusedItem)
4234 {
4235 rcFocused = (infoPtr->focusedItem)->rect;
4236 infoPtr->focusedItem = 0;
4237 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4238 }
4239
4240 switch (action)
4241 {
4242 case TVGN_CARET:
4243 prevSelect = infoPtr->selectedItem;
4244
4245 if (prevSelect == newSelect) {
4246 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4247 break;
4248 }
4249
4250 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4251 TVN_SELCHANGINGW,
4252 cause,
4253 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4254 prevSelect,
4255 newSelect))
4256 return FALSE;
4257
4258 if (prevSelect)
4259 prevSelect->state &= ~TVIS_SELECTED;
4260 if (newSelect)
4261 newSelect->state |= TVIS_SELECTED;
4262
4263 infoPtr->selectedItem = newSelect;
4264
4265 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4266
4267 if (prevSelect)
4268 TREEVIEW_Invalidate(infoPtr, prevSelect);
4269 if (newSelect)
4270 TREEVIEW_Invalidate(infoPtr, newSelect);
4271
4272 TREEVIEW_SendTreeviewNotify(infoPtr,
4273 TVN_SELCHANGEDW,
4274 cause,
4275 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4276 prevSelect,
4277 newSelect);
4278 break;
4279
4280 case TVGN_DROPHILITE:
4281 prevSelect = infoPtr->dropItem;
4282
4283 if (prevSelect)
4284 prevSelect->state &= ~TVIS_DROPHILITED;
4285
4286 infoPtr->dropItem = newSelect;
4287
4288 if (newSelect)
4289 newSelect->state |= TVIS_DROPHILITED;
4290
4291 TREEVIEW_Invalidate(infoPtr, prevSelect);
4292 TREEVIEW_Invalidate(infoPtr, newSelect);
4293 break;
4294
4295 case TVGN_FIRSTVISIBLE:
4296 if (newSelect != NULL)
4297 {
4298 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4299 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4300 TREEVIEW_Invalidate(infoPtr, NULL);
4301 }
4302 break;
4303 }
4304
4305 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4306 return TRUE;
4307 }
4308
4309 /* FIXME: handle NM_KILLFOCUS etc */
4310 static LRESULT
4311 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4312 {
4313 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4314 return FALSE;
4315
4316 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4317
4318 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4319 return FALSE;
4320
4321 return TRUE;
4322 }
4323
4324 /*************************************************************************
4325 * TREEVIEW_ProcessLetterKeys
4326 *
4327 * Processes keyboard messages generated by pressing the letter keys
4328 * on the keyboard.
4329 * What this does is perform a case insensitive search from the
4330 * current position with the following quirks:
4331 * - If two chars or more are pressed in quick succession we search
4332 * for the corresponding string (e.g. 'abc').
4333 * - If there is a delay we wipe away the current search string and
4334 * restart with just that char.
4335 * - If the user keeps pressing the same character, whether slowly or
4336 * fast, so that the search string is entirely composed of this
4337 * character ('aaaaa' for instance), then we search for first item
4338 * that starting with that character.
4339 * - If the user types the above character in quick succession, then
4340 * we must also search for the corresponding string ('aaaaa'), and
4341 * go to that string if there is a match.
4342 *
4343 * RETURNS
4344 *
4345 * Zero.
4346 *
4347 * BUGS
4348 *
4349 * - The current implementation has a list of characters it will
4350 * accept and it ignores averything else. In particular it will
4351 * ignore accentuated characters which seems to match what
4352 * Windows does. But I'm not sure it makes sense to follow
4353 * Windows there.
4354 * - We don't sound a beep when the search fails.
4355 * - The search should start from the focused item, not from the selected
4356 * item. One reason for this is to allow for multiple selections in trees.
4357 * But currently infoPtr->focusedItem does not seem very usable.
4358 *
4359 * SEE ALSO
4360 *
4361 * TREEVIEW_ProcessLetterKeys
4362 */
4363 static INT TREEVIEW_ProcessLetterKeys(
4364 HWND hwnd, /* handle to the window */
4365 WPARAM charCode, /* the character code, the actual character */
4366 LPARAM keyData /* key data */
4367 )
4368 {
4369 TREEVIEW_INFO *infoPtr;
4370 HTREEITEM nItem;
4371 HTREEITEM endidx,idx;
4372 TVITEMEXW item;
4373 WCHAR buffer[MAX_PATH];
4374 DWORD timestamp,elapsed;
4375
4376 /* simple parameter checking */
4377 if (!hwnd || !charCode || !keyData)
4378 return 0;
4379
4380 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4381 if (!infoPtr)
4382 return 0;
4383
4384 /* only allow the valid WM_CHARs through */
4385 if (!isalnum(charCode) &&
4386 charCode != '.' && charCode != '`' && charCode != '!' &&
4387 charCode != '@' && charCode != '#' && charCode != '$' &&
4388 charCode != '%' && charCode != '^' && charCode != '&' &&
4389 charCode != '*' && charCode != '(' && charCode != ')' &&
4390 charCode != '-' && charCode != '_' && charCode != '+' &&
4391 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4392 charCode != '}' && charCode != '[' && charCode != '{' &&
4393 charCode != '/' && charCode != '?' && charCode != '>' &&
4394 charCode != '<' && charCode != ',' && charCode != '~')
4395 return 0;
4396
4397 /* compute how much time elapsed since last keypress */
4398 timestamp = GetTickCount();
4399 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4400 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4401 } else {
4402 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4403 }
4404
4405 /* update the search parameters */
4406 infoPtr->lastKeyPressTimestamp=timestamp;
4407 if (elapsed < KEY_DELAY) {
4408 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4409 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4410 }
4411 if (infoPtr->charCode != charCode) {
4412 infoPtr->charCode=charCode=0;
4413 }
4414 } else {
4415 infoPtr->charCode=charCode;
4416 infoPtr->szSearchParam[0]=charCode;
4417 infoPtr->nSearchParamLength=1;
4418 /* Redundant with the 1 char string */
4419 charCode=0;
4420 }
4421
4422 /* and search from the current position */
4423 nItem=NULL;
4424 if (infoPtr->selectedItem != NULL) {
4425 endidx=infoPtr->selectedItem;
4426 /* if looking for single character match,
4427 * then we must always move forward
4428 */
4429 if (infoPtr->nSearchParamLength == 1)
4430 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4431 else
4432 idx=endidx;
4433 } else {
4434 endidx=NULL;
4435 idx=infoPtr->root->firstChild;
4436 }
4437 do {
4438 /* At the end point, sort out wrapping */
4439 if (idx == NULL) {
4440
4441 /* If endidx is null, stop at the last item (ie top to bottom) */
4442 if (endidx == NULL)
4443 break;
4444
4445 /* Otherwise, start again at the very beginning */
4446 idx=infoPtr->root->firstChild;
4447
4448 /* But if we are stopping on the first child, end now! */
4449 if (idx == endidx) break;
4450 }
4451
4452 /* get item */
4453 ZeroMemory(&item, sizeof(item));
4454 item.mask = TVIF_TEXT;
4455 item.hItem = idx;
4456 item.pszText = buffer;
4457 item.cchTextMax = sizeof(buffer);
4458 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4459
4460 /* check for a match */
4461 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4462 nItem=idx;
4463 break;
4464 } else if ( (charCode != 0) && (nItem == NULL) &&
4465 (nItem != infoPtr->selectedItem) &&
4466 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4467 /* This would work but we must keep looking for a longer match */
4468 nItem=idx;
4469 }
4470 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4471 } while (idx != endidx);
4472
4473 if (nItem != NULL) {
4474 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4475 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4476 }
4477 }
4478
4479 return 0;
4480 }
4481
4482 /* Scrolling ************************************************************/
4483
4484 static LRESULT
4485 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4486 {
4487 int viscount;
4488 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4489 HTREEITEM newFirstVisible = NULL;
4490 int visible_pos = -1;
4491
4492 if (!TREEVIEW_ValidItem(infoPtr, item))
4493 return FALSE;
4494
4495 if (!ISVISIBLE(item))
4496 {
4497 /* Expand parents as necessary. */
4498 HTREEITEM parent;
4499
4500 /* see if we are trying to ensure that root is vislble */
4501 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4502 parent = item->parent;
4503 else
4504 parent = item; /* this item is the topmost item */
4505
4506 while (parent != infoPtr->root)
4507 {
4508 if (!(parent->state & TVIS_EXPANDED))
4509 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4510
4511 parent = parent->parent;
4512 }
4513 }
4514
4515 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4516
4517 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4518 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4519
4520 if (hasFirstVisible)
4521 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4522
4523 if (visible_pos < 0)
4524 {
4525 /* item is before the start of the list: put it at the top. */
4526 newFirstVisible = item;
4527 }
4528 else if (visible_pos >= viscount
4529 /* Sometimes, before we are displayed, GVC is 0, causing us to
4530 * spuriously scroll up. */
4531 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4532 {
4533 /* item is past the end of the list. */
4534 int scroll = visible_pos - viscount;
4535
4536 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4537 scroll + 1);
4538 }
4539
4540 if (bHScroll)
4541 {
4542 /* Scroll window so item's text is visible as much as possible */
4543 /* Calculation of amount of extra space is taken from EditLabel code */
4544 INT pos, x;
4545 TEXTMETRICW textMetric;
4546 HDC hdc = GetWindowDC(infoPtr->hwnd);
4547
4548 x = item->textWidth;
4549
4550 GetTextMetricsW(hdc, &textMetric);
4551 ReleaseDC(infoPtr->hwnd, hdc);
4552
4553 x += (textMetric.tmMaxCharWidth * 2);
4554 x = max(x, textMetric.tmMaxCharWidth * 3);
4555
4556 if (item->textOffset < 0)
4557 pos = item->textOffset;
4558 else if (item->textOffset + x > infoPtr->clientWidth)
4559 {
4560 if (x > infoPtr->clientWidth)
4561 pos = item->textOffset;
4562 else
4563 pos = item->textOffset + x - infoPtr->clientWidth;
4564 }
4565 else
4566 pos = 0;
4567
4568 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4569 }
4570
4571 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4572 {
4573 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4574
4575 return TRUE;
4576 }
4577
4578 return FALSE;
4579 }
4580
4581 static VOID
4582 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4583 TREEVIEW_ITEM *newFirstVisible,
4584 BOOL bUpdateScrollPos)
4585 {
4586 int gap_size;
4587
4588 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4589
4590 if (newFirstVisible != NULL)
4591 {
4592 /* Prevent an empty gap from appearing at the bottom... */
4593 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4594 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4595
4596 if (gap_size > 0)
4597 {
4598 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4599 -gap_size);
4600
4601 /* ... unless we just don't have enough items. */
4602 if (newFirstVisible == NULL)
4603 newFirstVisible = infoPtr->root->firstChild;
4604 }
4605 }
4606
4607 if (infoPtr->firstVisible != newFirstVisible)
4608 {
4609 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4610 {
4611 infoPtr->firstVisible = newFirstVisible;
4612 TREEVIEW_Invalidate(infoPtr, NULL);
4613 }
4614 else
4615 {
4616 TREEVIEW_ITEM *item;
4617 int scroll = infoPtr->uItemHeight *
4618 (infoPtr->firstVisible->visibleOrder
4619 - newFirstVisible->visibleOrder);
4620
4621 infoPtr->firstVisible = newFirstVisible;
4622
4623 for (item = infoPtr->root->firstChild; item != NULL;
4624 item = TREEVIEW_GetNextListItem(infoPtr, item))
4625 {
4626 item->rect.top += scroll;
4627 item->rect.bottom += scroll;
4628 }
4629
4630 if (bUpdateScrollPos)
4631 SetScrollPos(infoPtr->hwnd, SB_VERT,
4632 newFirstVisible->visibleOrder, TRUE);
4633
4634 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4635 }
4636 }
4637 }
4638
4639 /************************************************************************
4640 * VScroll is always in units of visible items. i.e. we always have a
4641 * visible item aligned to the top of the control. (Unless we have no
4642 * items at all.)
4643 */
4644 static LRESULT
4645 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4646 {
4647 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4648 TREEVIEW_ITEM *newFirstVisible = NULL;
4649
4650 int nScrollCode = LOWORD(wParam);
4651
4652 TRACE("wp %x\n", wParam);
4653
4654 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4655 return 0;
4656
4657 if (infoPtr->hwndEdit)
4658 SetFocus(infoPtr->hwnd);
4659
4660 if (!oldFirstVisible)
4661 {
4662 assert(infoPtr->root->firstChild == NULL);
4663 return 0;
4664 }
4665
4666 switch (nScrollCode)
4667 {
4668 case SB_TOP:
4669 newFirstVisible = infoPtr->root->firstChild;
4670 break;
4671
4672 case SB_BOTTOM:
4673 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4674 break;
4675
4676 case SB_LINEUP:
4677 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4678 break;
4679
4680 case SB_LINEDOWN:
4681 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4682 break;
4683
4684 case SB_PAGEUP:
4685 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4686 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4687 break;
4688
4689 case SB_PAGEDOWN:
4690 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4691 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4692 break;
4693
4694 case SB_THUMBTRACK:
4695 case SB_THUMBPOSITION:
4696 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4697 infoPtr->root->firstChild,
4698 (LONG)(SHORT)HIWORD(wParam));
4699 break;
4700
4701 case SB_ENDSCROLL:
4702 return 0;
4703 }
4704
4705 if (newFirstVisible != NULL)
4706 {
4707 if (newFirstVisible != oldFirstVisible)
4708 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4709 nScrollCode != SB_THUMBTRACK);
4710 else if (nScrollCode == SB_THUMBPOSITION)
4711 SetScrollPos(infoPtr->hwnd, SB_VERT,
4712 newFirstVisible->visibleOrder, TRUE);
4713 }
4714
4715 return 0;
4716 }
4717
4718 static LRESULT
4719 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4720 {
4721 int maxWidth;
4722 int scrollX = infoPtr->scrollX;
4723 int nScrollCode = LOWORD(wParam);
4724
4725 TRACE("wp %x\n", wParam);
4726
4727 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4728 return FALSE;
4729
4730 if (infoPtr->hwndEdit)
4731 SetFocus(infoPtr->hwnd);
4732
4733 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4734 /* shall never occur */
4735 if (maxWidth <= 0)
4736 {
4737 scrollX = 0;
4738 goto scroll;
4739 }
4740
4741 switch (nScrollCode)
4742 {
4743 case SB_LINELEFT:
4744 scrollX -= infoPtr->uItemHeight;
4745 break;
4746 case SB_LINERIGHT:
4747 scrollX += infoPtr->uItemHeight;
4748 break;
4749 case SB_PAGELEFT:
4750 scrollX -= infoPtr->clientWidth;
4751 break;
4752 case SB_PAGERIGHT:
4753 scrollX += infoPtr->clientWidth;
4754 break;
4755
4756 case SB_THUMBTRACK:
4757 case SB_THUMBPOSITION:
4758 scrollX = (int)(SHORT)HIWORD(wParam);
4759 break;
4760
4761 case SB_ENDSCROLL:
4762 return 0;
4763 }
4764
4765 if (scrollX > maxWidth)
4766 scrollX = maxWidth;
4767 else if (scrollX < 0)
4768 scrollX = 0;
4769
4770 scroll:
4771 if (scrollX != infoPtr->scrollX)
4772 {
4773 TREEVIEW_ITEM *item;
4774 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4775
4776 for (item = infoPtr->root->firstChild; item != NULL;
4777 item = TREEVIEW_GetNextListItem(infoPtr, item))
4778 {
4779 item->linesOffset += scroll_pixels;
4780 item->stateOffset += scroll_pixels;
4781 item->imageOffset += scroll_pixels;
4782 item->textOffset += scroll_pixels;
4783 }
4784
4785 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4786 infoPtr->scrollX = scrollX;
4787 UpdateWindow(infoPtr->hwnd);
4788 }
4789
4790 if (nScrollCode != SB_THUMBTRACK)
4791 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4792
4793 return 0;
4794 }
4795
4796 static LRESULT
4797 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4798 {
4799 short gcWheelDelta;
4800 UINT pulScrollLines = 3;
4801
4802 if (infoPtr->firstVisible == NULL)
4803 return TRUE;
4804
4805 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4806
4807 gcWheelDelta = -(short)HIWORD(wParam);
4808 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4809
4810 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4811 {
4812 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4813 int maxDy = infoPtr->maxVisibleOrder;
4814
4815 if (newDy > maxDy)
4816 newDy = maxDy;
4817
4818 if (newDy < 0)
4819 newDy = 0;
4820
4821 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4822 }
4823 return TRUE;
4824 }
4825
4826 /* Create/Destroy *******************************************************/
4827
4828 static LRESULT
4829 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4830 {
4831 RECT rcClient;
4832 TREEVIEW_INFO *infoPtr;
4833 LOGFONTW lf;
4834
4835 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4836
4837 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4838
4839 if (infoPtr == NULL)
4840 {
4841 ERR("could not allocate info memory!\n");
4842 return 0;
4843 }
4844
4845 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4846
4847 infoPtr->hwnd = hwnd;
4848 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4849 infoPtr->Timer = 0;
4850 infoPtr->uNumItems = 0;
4851 infoPtr->cdmode = 0;
4852 infoPtr->uScrollTime = 300; /* milliseconds */
4853 infoPtr->bRedraw = TRUE;
4854
4855 GetClientRect(hwnd, &rcClient);
4856
4857 /* No scroll bars yet. */
4858 infoPtr->clientWidth = rcClient.right;
4859 infoPtr->clientHeight = rcClient.bottom;
4860 infoPtr->uInternalStatus = 0;
4861
4862 infoPtr->treeWidth = 0;
4863 infoPtr->treeHeight = 0;
4864
4865 infoPtr->uIndent = MINIMUM_INDENT;
4866 infoPtr->selectedItem = 0;
4867 infoPtr->focusedItem = 0;
4868 infoPtr->hotItem = 0;
4869 infoPtr->firstVisible = 0;
4870 infoPtr->maxVisibleOrder = 0;
4871 infoPtr->dropItem = 0;
4872 infoPtr->insertMarkItem = 0;
4873 infoPtr->insertBeforeorAfter = 0;
4874 /* dragList */
4875
4876 infoPtr->scrollX = 0;
4877
4878 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4879 infoPtr->clrText = -1; /* use system color */
4880 infoPtr->clrLine = RGB(128, 128, 128);
4881 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4882
4883 /* hwndToolTip */
4884
4885 infoPtr->hwndEdit = 0;
4886 infoPtr->wpEditOrig = NULL;
4887 infoPtr->bIgnoreEditKillFocus = FALSE;
4888 infoPtr->bLabelChanged = FALSE;
4889
4890 infoPtr->himlNormal = NULL;
4891 infoPtr->himlState = NULL;
4892 infoPtr->normalImageWidth = 0;
4893 infoPtr->normalImageHeight = 0;
4894 infoPtr->stateImageWidth = 0;
4895 infoPtr->stateImageHeight = 0;
4896
4897 infoPtr->items = DPA_Create(16);
4898
4899 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4900 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4901 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4902 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4903 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4904
4905 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4906
4907 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4908 infoPtr->root->state = TVIS_EXPANDED;
4909 infoPtr->root->iLevel = -1;
4910 infoPtr->root->visibleOrder = -1;
4911
4912 infoPtr->hwndNotify = lpcs->hwndParent;
4913 #if 0
4914 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4915 #endif
4916
4917 infoPtr->hwndToolTip = 0;
4918
4919 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4920
4921 /* Determine what type of notify should be issued */
4922 /* sets infoPtr->bNtfUnicode */
4923 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4924
4925 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4926 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
4927
4928 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4929 {
4930 RECT rc;
4931 HBITMAP hbm, hbmOld;
4932 HDC hdc,hdcScreen;
4933 int nIndex;
4934
4935 infoPtr->himlState =
4936 ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4937
4938 hdcScreen = GetDC(0);
4939
4940 /* Create a coloured bitmap compatible with the screen depth
4941 because checkboxes are not black&white */
4942 hdc = CreateCompatibleDC(hdcScreen);
4943 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4944 hbmOld = SelectObject(hdc, hbm);
4945
4946 rc.left = 0; rc.top = 0;
4947 rc.right = 48; rc.bottom = 16;
4948 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4949
4950 rc.left = 18; rc.top = 2;
4951 rc.right = 30; rc.bottom = 14;
4952 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4953 DFCS_BUTTONCHECK|DFCS_FLAT);
4954
4955 rc.left = 34; rc.right = 46;
4956 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4957 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4958
4959 SelectObject(hdc, hbmOld);
4960 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4961 GetSysColor(COLOR_WINDOW));
4962 TRACE("checkbox index %d\n", nIndex);
4963
4964 DeleteObject(hbm);
4965 DeleteDC(hdc);
4966 ReleaseDC(0, hdcScreen);
4967
4968 infoPtr->stateImageWidth = 16;
4969 infoPtr->stateImageHeight = 16;
4970 }
4971
4972 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4973 ShowScrollBar(hwnd, SB_VERT, FALSE);
4974 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4975
4976 OpenThemeData (hwnd, themeClass);
4977
4978 return 0;
4979 }
4980
4981
4982 static LRESULT
4983 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4984 {
4985 TRACE("\n");
4986
4987 TREEVIEW_RemoveTree(infoPtr);
4988
4989 /* tool tip is automatically destroyed: we are its owner */
4990
4991 /* Restore original wndproc */
4992 if (infoPtr->hwndEdit)
4993 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
4994 (DWORD_PTR)infoPtr->wpEditOrig);
4995
4996 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
4997
4998 /* Deassociate treeview from the window before doing anything drastic. */
4999 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
5000
5001
5002 DeleteObject(infoPtr->hDefaultFont);
5003 DeleteObject(infoPtr->hBoldFont);
5004 DeleteObject(infoPtr->hUnderlineFont);
5005 Free(infoPtr);
5006
5007 return 0;
5008 }
5009
5010 /* Miscellaneous Messages ***********************************************/
5011
5012 static LRESULT
5013 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5014 {
5015 static const struct
5016 {
5017 unsigned char code;
5018 }
5019 scroll[] =
5020 {
5021 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5022 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5023 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5024 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5025 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5026 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5027 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5028 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5029 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5030 #undef SCROLL_ENTRY
5031 };
5032
5033 if (key >= VK_PRIOR && key <= VK_DOWN)
5034 {
5035 unsigned char code = scroll[key - VK_PRIOR].code;
5036
5037 (((code & (1 << 7)) == (SB_HORZ << 7))
5038 ? TREEVIEW_HScroll
5039 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5040 }
5041
5042 return 0;
5043 }
5044
5045 /************************************************************************
5046 * TREEVIEW_KeyDown
5047 *
5048 * VK_UP Move selection to the previous non-hidden item.
5049 * VK_DOWN Move selection to the next non-hidden item.
5050 * VK_HOME Move selection to the first item.
5051 * VK_END Move selection to the last item.
5052 * VK_LEFT If expanded then collapse, otherwise move to parent.
5053 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5054 * VK_ADD Expand.
5055 * VK_SUBTRACT Collapse.
5056 * VK_MULTIPLY Expand all.
5057 * VK_PRIOR Move up GetVisibleCount items.
5058 * VK_NEXT Move down GetVisibleCount items.
5059 * VK_BACK Move to parent.
5060 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5061 */
5062 static LRESULT
5063 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5064 {
5065 /* If it is non-NULL and different, it will be selected and visible. */
5066 TREEVIEW_ITEM *newSelection = NULL;
5067
5068 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5069
5070 TRACE("%x\n", wParam);
5071
5072 if (prevItem == NULL)
5073 return FALSE;
5074
5075 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5076 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5077
5078 switch (wParam)
5079 {
5080 case VK_UP:
5081 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5082 if (!newSelection)
5083 newSelection = infoPtr->root->firstChild;
5084 break;
5085
5086 case VK_DOWN:
5087 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5088 break;
5089
5090 case VK_HOME:
5091 newSelection = infoPtr->root->firstChild;
5092 break;
5093
5094 case VK_END:
5095 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5096 break;
5097
5098 case VK_LEFT:
5099 if (prevItem->state & TVIS_EXPANDED)
5100 {
5101 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5102 }
5103 else if (prevItem->parent != infoPtr->root)
5104 {
5105 newSelection = prevItem->parent;
5106 }
5107 break;
5108
5109 case VK_RIGHT:
5110 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5111 {
5112 if (!(prevItem->state & TVIS_EXPANDED))
5113 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5114 else
5115 {
5116 newSelection = prevItem->firstChild;
5117 }
5118 }
5119
5120 break;
5121
5122 case VK_MULTIPLY:
5123 TREEVIEW_ExpandAll(infoPtr, prevItem);
5124 break;
5125
5126 case VK_ADD:
5127 if (!(prevItem->state & TVIS_EXPANDED))
5128 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5129 break;
5130
5131 case VK_SUBTRACT:
5132 if (prevItem->state & TVIS_EXPANDED)
5133 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5134 break;
5135
5136 case VK_PRIOR:
5137 newSelection
5138 = TREEVIEW_GetListItem(infoPtr, prevItem,
5139 -TREEVIEW_GetVisibleCount(infoPtr));
5140 break;
5141
5142 case VK_NEXT:
5143 newSelection
5144 = TREEVIEW_GetListItem(infoPtr, prevItem,
5145 TREEVIEW_GetVisibleCount(infoPtr));
5146 break;
5147
5148 case VK_BACK:
5149 newSelection = prevItem->parent;
5150 if (newSelection == infoPtr->root)
5151 newSelection = NULL;
5152 break;
5153
5154 case VK_SPACE:
5155 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5156 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5157 break;
5158 }
5159
5160 if (newSelection && newSelection != prevItem)
5161 {
5162 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5163 TVC_BYKEYBOARD))
5164 {
5165 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5166 }
5167 }
5168
5169 return FALSE;
5170 }
5171
5172 static LRESULT
5173 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5174 {
5175 if (infoPtr->hotItem)
5176 {
5177 /* remove hot effect from item */
5178 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5179 infoPtr->hotItem = NULL;
5180 }
5181 return 0;
5182 }
5183
5184 static LRESULT
5185 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5186 {
5187 POINT pt;
5188 TRACKMOUSEEVENT trackinfo;
5189 TREEVIEW_ITEM * item;
5190
5191 /* fill in the TRACKMOUSEEVENT struct */
5192 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5193 trackinfo.dwFlags = TME_QUERY;
5194 trackinfo.hwndTrack = infoPtr->hwnd;
5195 trackinfo.dwHoverTime = HOVER_DEFAULT;
5196
5197 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5198 _TrackMouseEvent(&trackinfo);
5199
5200 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5201 if(!(trackinfo.dwFlags & TME_LEAVE))
5202 {
5203 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5204
5205 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5206 /* and can properly deactivate the hot item */
5207 _TrackMouseEvent(&trackinfo);
5208 }
5209
5210 pt.x = (short)LOWORD(lParam);
5211 pt.y = (short)HIWORD(lParam);
5212
5213 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5214
5215 if (item != infoPtr->hotItem)
5216 {
5217 /* redraw old hot item */
5218 if (infoPtr->hotItem)
5219 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5220 infoPtr->hotItem = item;
5221 /* redraw new hot item */
5222 if (infoPtr->hotItem)
5223 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5224 }
5225
5226 return 0;
5227 }
5228
5229 /* Draw themed border */
5230 static BOOL nc_paint (TREEVIEW_INFO *infoPtr, HRGN region)
5231 {
5232 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5233 HDC dc;
5234 RECT r;
5235 HRGN cliprgn;
5236 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5237 cyEdge = GetSystemMetrics (SM_CYEDGE);
5238
5239 if (!theme) return FALSE;
5240
5241 GetWindowRect(infoPtr->hwnd, &r);
5242
5243 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5244 r.right - cxEdge, r.bottom - cyEdge);
5245 if (region != (HRGN)1)
5246 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5247 OffsetRect(&r, -r.left, -r.top);
5248
5249 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5250 OffsetRect(&r, -r.left, -r.top);
5251
5252 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5253 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5254 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5255 ReleaseDC(infoPtr->hwnd, dc);
5256
5257 /* Call default proc to get the scrollbars etc. painted */
5258 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5259
5260 return TRUE;
5261 }
5262
5263 static LRESULT
5264 TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5265 {
5266 LPNMHDR lpnmh = (LPNMHDR)lParam;
5267
5268 if (lpnmh->code == PGN_CALCSIZE) {
5269 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5270
5271 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5272 lppgc->iWidth = infoPtr->treeWidth;
5273 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5274 infoPtr->treeWidth, infoPtr->clientWidth);
5275 }
5276 else {
5277 lppgc->iHeight = infoPtr->treeHeight;
5278 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5279 infoPtr->treeHeight, infoPtr->clientHeight);
5280 }
5281 return 0;
5282 }
5283 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5284 }
5285
5286 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5287 {
5288 INT format;
5289
5290 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5291
5292 if (nCommand != NF_REQUERY) return 0;
5293
5294 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5295 TRACE("format=%d\n", format);
5296
5297 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5298
5299 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5300
5301 return format;
5302 }
5303
5304 static LRESULT
5305 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5306 {
5307 if (wParam == SIZE_RESTORED)
5308 {
5309 infoPtr->clientWidth = (short)LOWORD(lParam);
5310 infoPtr->clientHeight = (short)HIWORD(lParam);
5311
5312 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5313 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5314 TREEVIEW_UpdateScrollBars(infoPtr);
5315 }
5316 else
5317 {
5318 FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
5319 }
5320
5321 TREEVIEW_Invalidate(infoPtr, NULL);
5322 return 0;
5323 }
5324
5325 static LRESULT
5326 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5327 {
5328 TRACE("(%x %lx)\n", wParam, lParam);
5329
5330 if (wParam == GWL_STYLE)
5331 {
5332 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5333
5334 /* we have to take special care about tooltips */
5335 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5336 {
5337 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5338 {
5339 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5340 TRACE("\n");
5341 }
5342 else
5343 {
5344 DestroyWindow(infoPtr->hwndToolTip);
5345 infoPtr->hwndToolTip = 0;
5346 }
5347 }
5348
5349 infoPtr->dwStyle = dwNewStyle;
5350 }
5351
5352 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5353 TREEVIEW_UpdateScrollBars(infoPtr);
5354 TREEVIEW_Invalidate(infoPtr, NULL);
5355
5356 return 0;
5357 }
5358
5359 static LRESULT
5360 TREEVIEW_SetCursor(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5361 {
5362 POINT pt;
5363 TREEVIEW_ITEM * item;
5364
5365 GetCursorPos(&pt);
5366 ScreenToClient(infoPtr->hwnd, &pt);
5367
5368 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5369
5370 /* FIXME: send NM_SETCURSOR */
5371
5372 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5373 {
5374 SetCursor(infoPtr->hcurHand);
5375 return 0;
5376 }
5377 else
5378 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5379 }
5380
5381 static LRESULT
5382 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5383 {
5384 TRACE("\n");
5385
5386 if (!infoPtr->selectedItem)
5387 {
5388 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5389 TVC_UNKNOWN);
5390 }
5391
5392 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5393 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5394 return 0;
5395 }
5396
5397 static LRESULT
5398 TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
5399 {
5400 TRACE("\n");
5401
5402 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5403 UpdateWindow(infoPtr->hwnd);
5404 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5405 return 0;
5406 }
5407
5408 /* update theme after a WM_THEMECHANGED message */
5409 static LRESULT theme_changed (TREEVIEW_INFO* infoPtr)
5410 {
5411 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5412 CloseThemeData (theme);
5413 OpenThemeData (infoPtr->hwnd, themeClass);
5414 return 0;
5415 }
5416
5417
5418 static LRESULT WINAPI
5419 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5420 {
5421 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5422
5423 TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5424
5425 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5426 else
5427 {
5428 if (uMsg == WM_CREATE)
5429 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5430 else
5431 goto def;
5432 }
5433
5434 switch (uMsg)
5435 {
5436 case TVM_CREATEDRAGIMAGE:
5437 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5438
5439 case TVM_DELETEITEM:
5440 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5441
5442 case TVM_EDITLABELA:
5443 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5444
5445 case TVM_EDITLABELW:
5446 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5447
5448 case TVM_ENDEDITLABELNOW:
5449 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5450
5451 case TVM_ENSUREVISIBLE:
5452 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5453
5454 case TVM_EXPAND:
5455 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5456
5457 case TVM_GETBKCOLOR:
5458 return TREEVIEW_GetBkColor(infoPtr);
5459
5460 case TVM_GETCOUNT:
5461 return TREEVIEW_GetCount(infoPtr);
5462
5463 case TVM_GETEDITCONTROL:
5464 return TREEVIEW_GetEditControl(infoPtr);
5465
5466 case TVM_GETIMAGELIST:
5467 return TREEVIEW_GetImageList(infoPtr, wParam);
5468
5469 case TVM_GETINDENT:
5470 return TREEVIEW_GetIndent(infoPtr);
5471
5472 case TVM_GETINSERTMARKCOLOR:
5473 return TREEVIEW_GetInsertMarkColor(infoPtr);
5474
5475 case TVM_GETISEARCHSTRINGA:
5476 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5477 return 0;
5478
5479 case TVM_GETISEARCHSTRINGW:
5480 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5481 return 0;
5482
5483 case TVM_GETITEMA:
5484 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5485
5486 case TVM_GETITEMW:
5487 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5488
5489 case TVM_GETITEMHEIGHT:
5490 return TREEVIEW_GetItemHeight(infoPtr);
5491
5492 case TVM_GETITEMRECT:
5493 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5494
5495 case TVM_GETITEMSTATE:
5496 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5497
5498 case TVM_GETLINECOLOR:
5499 return TREEVIEW_GetLineColor(infoPtr);
5500
5501 case TVM_GETNEXTITEM:
5502 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5503
5504 case TVM_GETSCROLLTIME:
5505 return TREEVIEW_GetScrollTime(infoPtr);
5506
5507 case TVM_GETTEXTCOLOR:
5508 return TREEVIEW_GetTextColor(infoPtr);
5509
5510 case TVM_GETTOOLTIPS:
5511 return TREEVIEW_GetToolTips(infoPtr);
5512
5513 case TVM_GETUNICODEFORMAT:
5514 return TREEVIEW_GetUnicodeFormat(infoPtr);
5515
5516 case TVM_GETVISIBLECOUNT:
5517 return TREEVIEW_GetVisibleCount(infoPtr);
5518
5519 case TVM_HITTEST:
5520 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5521
5522 case TVM_INSERTITEMA:
5523 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5524
5525 case TVM_INSERTITEMW:
5526 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5527
5528 case TVM_SELECTITEM:
5529 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5530
5531 case TVM_SETBKCOLOR:
5532 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5533
5534 case TVM_SETIMAGELIST:
5535 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5536
5537 case TVM_SETINDENT:
5538 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5539
5540 case TVM_SETINSERTMARK:
5541 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5542
5543 case TVM_SETINSERTMARKCOLOR:
5544 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5545
5546 case TVM_SETITEMA:
5547 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5548
5549 case TVM_SETITEMW:
5550 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5551
5552 case TVM_SETLINECOLOR:
5553 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5554
5555 case TVM_SETITEMHEIGHT:
5556 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5557
5558 case TVM_SETSCROLLTIME:
5559 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5560
5561 case TVM_SETTEXTCOLOR:
5562 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5563
5564 case TVM_SETTOOLTIPS:
5565 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5566
5567 case TVM_SETUNICODEFORMAT:
5568 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5569
5570 case TVM_SORTCHILDREN:
5571 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5572
5573 case TVM_SORTCHILDRENCB:
5574 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5575
5576 case WM_CHAR:
5577 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5578
5579 case WM_COMMAND:
5580 return TREEVIEW_Command(infoPtr, wParam, lParam);
5581
5582 case WM_DESTROY:
5583 return TREEVIEW_Destroy(infoPtr);
5584
5585 /* WM_ENABLE */
5586
5587 case WM_ERASEBKGND:
5588 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5589
5590 case WM_GETDLGCODE:
5591 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5592
5593 case WM_GETFONT:
5594 return TREEVIEW_GetFont(infoPtr);
5595
5596 case WM_HSCROLL:
5597 return TREEVIEW_HScroll(infoPtr, wParam);
5598
5599 case WM_KEYDOWN:
5600 return TREEVIEW_KeyDown(infoPtr, wParam);
5601
5602 case WM_KILLFOCUS:
5603 return TREEVIEW_KillFocus(infoPtr);
5604
5605 case WM_LBUTTONDBLCLK:
5606 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5607
5608 case WM_LBUTTONDOWN:
5609 return TREEVIEW_LButtonDown(infoPtr, lParam);
5610
5611 /* WM_MBUTTONDOWN */
5612
5613 case WM_MOUSELEAVE:
5614 return TREEVIEW_MouseLeave(infoPtr);
5615
5616 case WM_MOUSEMOVE:
5617 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5618 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5619 else
5620 return 0;
5621
5622 case WM_NCPAINT:
5623 if (nc_paint (infoPtr, (HRGN)wParam))
5624 return 0;
5625 goto def;
5626
5627 case WM_NOTIFY:
5628 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5629
5630 case WM_NOTIFYFORMAT:
5631 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5632
5633 case WM_PRINTCLIENT:
5634 case WM_PAINT:
5635 return TREEVIEW_Paint(infoPtr, wParam);
5636
5637 case WM_RBUTTONDOWN:
5638 return TREEVIEW_RButtonDown(infoPtr, lParam);
5639
5640 case WM_SETCURSOR:
5641 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5642
5643 case WM_SETFOCUS:
5644 return TREEVIEW_SetFocus(infoPtr);
5645
5646 case WM_SETFONT:
5647 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5648
5649 case WM_SETREDRAW:
5650 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5651
5652 case WM_SIZE:
5653 return TREEVIEW_Size(infoPtr, wParam, lParam);
5654
5655 case WM_STYLECHANGED:
5656 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5657
5658 /* WM_SYSCOLORCHANGE */
5659
5660 /* WM_SYSKEYDOWN */
5661
5662 case WM_TIMER:
5663 return TREEVIEW_HandleTimer(infoPtr, wParam);
5664
5665 case WM_THEMECHANGED:
5666 return theme_changed (infoPtr);
5667
5668 case WM_VSCROLL:
5669 return TREEVIEW_VScroll(infoPtr, wParam);
5670
5671 /* WM_WININICHANGE */
5672
5673 case WM_MOUSEWHEEL:
5674 if (wParam & (MK_SHIFT | MK_CONTROL))
5675 goto def;
5676 return TREEVIEW_MouseWheel(infoPtr, wParam);
5677
5678 case WM_DRAWITEM:
5679 TRACE("drawItem\n");
5680 goto def;
5681
5682 default:
5683 /* This mostly catches MFC and Delphi messages. :( */
5684 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5685 TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
5686 def:
5687 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5688 }
5689 }
5690
5691
5692 /* Class Registration ***************************************************/
5693
5694 VOID
5695 TREEVIEW_Register(void)
5696 {
5697 WNDCLASSW wndClass;
5698
5699 TRACE("\n");
5700
5701 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5702 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5703 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5704 wndClass.cbClsExtra = 0;
5705 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5706
5707 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5708 wndClass.hbrBackground = 0;
5709 wndClass.lpszClassName = WC_TREEVIEWW;
5710
5711 RegisterClassW(&wndClass);
5712 }
5713
5714
5715 VOID
5716 TREEVIEW_Unregister(void)
5717 {
5718 UnregisterClassW(WC_TREEVIEWW, NULL);
5719 }
5720
5721
5722 /* Tree Verification ****************************************************/
5723
5724 #ifdef NDEBUG
5725 static inline void
5726 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5727
5728 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5729 TREEVIEW_ITEM *item)
5730 {
5731 assert(infoPtr != NULL);
5732 assert(item != NULL);
5733
5734 /* both NULL, or both non-null */
5735 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5736
5737 assert(item->firstChild != item);
5738 assert(item->lastChild != item);
5739
5740 if (item->firstChild)
5741 {
5742 assert(item->firstChild->parent == item);
5743 assert(item->firstChild->prevSibling == NULL);
5744 }
5745
5746 if (item->lastChild)
5747 {
5748 assert(item->lastChild->parent == item);
5749 assert(item->lastChild->nextSibling == NULL);
5750 }
5751
5752 assert(item->nextSibling != item);
5753 if (item->nextSibling)
5754 {
5755 assert(item->nextSibling->parent == item->parent);
5756 assert(item->nextSibling->prevSibling == item);
5757 }
5758
5759 assert(item->prevSibling != item);
5760 if (item->prevSibling)
5761 {
5762 assert(item->prevSibling->parent == item->parent);
5763 assert(item->prevSibling->nextSibling == item);
5764 }
5765 }
5766
5767 static inline void
5768 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5769 {
5770 assert(item != NULL);
5771
5772 assert(item->parent != NULL);
5773 assert(item->parent != item);
5774 assert(item->iLevel == item->parent->iLevel + 1);
5775
5776 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5777
5778 TREEVIEW_VerifyItemCommon(infoPtr, item);
5779
5780 TREEVIEW_VerifyChildren(infoPtr, item);
5781 }
5782
5783 static inline void
5784 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5785 {
5786 TREEVIEW_ITEM *child;
5787 assert(item != NULL);
5788
5789 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5790 TREEVIEW_VerifyItem(infoPtr, child);
5791 }
5792
5793 static inline void
5794 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5795 {
5796 TREEVIEW_ITEM *root = infoPtr->root;
5797
5798 assert(root != NULL);
5799 assert(root->iLevel == -1);
5800 assert(root->parent == NULL);
5801 assert(root->prevSibling == NULL);
5802
5803 TREEVIEW_VerifyItemCommon(infoPtr, root);
5804
5805 TREEVIEW_VerifyChildren(infoPtr, root);
5806 }
5807
5808 static void
5809 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5810 {
5811 assert(infoPtr != NULL);
5812
5813 TREEVIEW_VerifyRoot(infoPtr);
5814 }
5815 #endif
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