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push e57f4907e24f93b118c5a715e9cf13b17e600a1f
[wine/hacks.git] / dlls / comctl32 / treeview.c
blob6a8e0c244ef22ded1b3564829cbdb187486da10d
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 /* ditto Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 assert(infoPtr != NULL);
245
246 return DPA_GetPtrIndex(infoPtr->items, handle);
247 }
248
249 /* Checks if item has changed and needs to be redrawn */
250 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
251 const TVITEMEXW *tvChange)
252 {
253 /* Number of children has changed */
254 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
255 return TRUE;
256
257 /* Image has changed and it's not a callback */
258 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
259 tiNew->iImage != I_IMAGECALLBACK)
260 return TRUE;
261
262 /* Selected image has changed and it's not a callback */
263 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
264 tiNew->iSelectedImage != I_IMAGECALLBACK)
265 return TRUE;
266
267 /* Text has changed and it's not a callback */
268 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
269 tiNew->pszText != LPSTR_TEXTCALLBACKW)
270 return TRUE;
271
272 /* Indent has changed */
273 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
274 return TRUE;
275
276 /* Item state has changed */
277 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
278 return TRUE;
279
280 return FALSE;
281 }
282
283 /***************************************************************************
284 * This method checks that handle is an item for this tree.
285 */
286 static BOOL
287 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
288 {
289 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
290 {
291 TRACE("invalid item %p\n", handle);
292 return FALSE;
293 }
294 else
295 return TRUE;
296 }
297
298 static HFONT
299 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
300 {
301 LOGFONTW font;
302
303 GetObjectW(hOrigFont, sizeof(font), &font);
304 font.lfWeight = FW_BOLD;
305 return CreateFontIndirectW(&font);
306 }
307
308 static HFONT
309 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
310 {
311 LOGFONTW font;
312
313 GetObjectW(hOrigFont, sizeof(font), &font);
314 font.lfUnderline = TRUE;
315 return CreateFontIndirectW(&font);
316 }
317
318 static inline HFONT
319 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
320 {
321 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
322 return infoPtr->hUnderlineFont;
323 if (item->state & TVIS_BOLD)
324 return infoPtr->hBoldFont;
325 return infoPtr->hFont;
326 }
327
328 /* for trace/debugging purposes only */
329 static const char *
330 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
331 {
332 if (item == NULL) return "<null item>";
333 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
334 if (item->pszText == NULL) return "<null>";
335 return debugstr_w(item->pszText);
336 }
337
338 /* An item is not a child of itself. */
339 static BOOL
340 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
341 {
342 do
343 {
344 child = child->parent;
345 if (child == parent) return TRUE;
346 } while (child != NULL);
347
348 return FALSE;
349 }
350
351
352 /* Tree Traversal *******************************************************/
353
354 /***************************************************************************
355 * This method returns the last expanded sibling or child child item
356 * of a tree node
357 */
358 static TREEVIEW_ITEM *
359 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
360 {
361 if (!wineItem)
362 return NULL;
363
364 while (wineItem->lastChild)
365 {
366 if (wineItem->state & TVIS_EXPANDED)
367 wineItem = wineItem->lastChild;
368 else
369 break;
370 }
371
372 if (wineItem == infoPtr->root)
373 return NULL;
374
375 return wineItem;
376 }
377
378 /***************************************************************************
379 * This method returns the previous non-hidden item in the list not
380 * considering the tree hierarchy.
381 */
382 static TREEVIEW_ITEM *
383 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
384 {
385 if (tvItem->prevSibling)
386 {
387 /* This item has a prevSibling, get the last item in the sibling's tree. */
388 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
389
390 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
391 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
392 else
393 return upItem;
394 }
395 else
396 {
397 /* this item does not have a prevSibling, get the parent */
398 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
399 }
400 }
401
402
403 /***************************************************************************
404 * This method returns the next physical item in the treeview not
405 * considering the tree hierarchy.
406 */
407 static TREEVIEW_ITEM *
408 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
409 {
410 assert(tvItem != NULL);
411
412 /*
413 * If this item has children and is expanded, return the first child
414 */
415 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
416 {
417 return tvItem->firstChild;
418 }
419
420
421 /*
422 * try to get the sibling
423 */
424 if (tvItem->nextSibling)
425 return tvItem->nextSibling;
426
427 /*
428 * Otherwise, get the parent's sibling.
429 */
430 while (tvItem->parent)
431 {
432 tvItem = tvItem->parent;
433
434 if (tvItem->nextSibling)
435 return tvItem->nextSibling;
436 }
437
438 return NULL;
439 }
440
441 /***************************************************************************
442 * This method returns the nth item starting at the given item. It returns
443 * the last item (or first) we we run out of items.
444 *
445 * Will scroll backward if count is <0.
446 * forward if count is >0.
447 */
448 static TREEVIEW_ITEM *
449 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
450 LONG count)
451 {
452 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
453 TREEVIEW_ITEM *previousItem;
454
455 assert(wineItem != NULL);
456
457 if (count > 0)
458 {
459 next_item = TREEVIEW_GetNextListItem;
460 }
461 else if (count < 0)
462 {
463 count = -count;
464 next_item = TREEVIEW_GetPrevListItem;
465 }
466 else
467 return wineItem;
468
469 do
470 {
471 previousItem = wineItem;
472 wineItem = next_item(infoPtr, wineItem);
473
474 } while (--count && wineItem != NULL);
475
476
477 return wineItem ? wineItem : previousItem;
478 }
479
480 /* Notifications ************************************************************/
481
482 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
483 {
484 if (!infoPtr->bNtfUnicode) {
485 switch (code) {
486 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
487 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
488 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
489 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
490 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
491 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
492 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
493 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
494 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
495 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
496 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
497 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
498 }
499 }
500 return code;
501 }
502
503 static LRESULT
504 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
505 {
506 TRACE("wParam=%ld, lParam=%ld\n", wParam, lParam);
507 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
508 }
509
510 static BOOL
511 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
512 {
513 NMHDR nmhdr;
514 HWND hwnd = infoPtr->hwnd;
515
516 TRACE("%d\n", code);
517 nmhdr.hwndFrom = hwnd;
518 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
519 nmhdr.code = get_notifycode(infoPtr, code);
520
521 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 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, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
585 if (!infoPtr->bNtfUnicode)
586 {
587 Free(nmhdr.itemOld.pszText);
588 Free(nmhdr.itemNew.pszText);
589 }
590 return ret;
591 }
592
593 static BOOL
594 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
595 HTREEITEM dragItem, POINT pt)
596 {
597 HWND hwnd = infoPtr->hwnd;
598 NMTREEVIEWW nmhdr;
599
600 TRACE("code:%d dragitem:%p\n", code, dragItem);
601
602 nmhdr.hdr.hwndFrom = hwnd;
603 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
604 nmhdr.hdr.code = get_notifycode(infoPtr, code);
605 nmhdr.action = 0;
606 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
607 nmhdr.itemNew.hItem = dragItem;
608 nmhdr.itemNew.state = dragItem->state;
609 nmhdr.itemNew.lParam = dragItem->lParam;
610
611 nmhdr.ptDrag.x = pt.x;
612 nmhdr.ptDrag.y = pt.y;
613
614 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
615 }
616
617
618 static BOOL
619 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
620 HDC hdc, RECT rc)
621 {
622 HWND hwnd = infoPtr->hwnd;
623 NMTVCUSTOMDRAW nmcdhdr;
624 LPNMCUSTOMDRAW nmcd;
625
626 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
627
628 nmcd = &nmcdhdr.nmcd;
629 nmcd->hdr.hwndFrom = hwnd;
630 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
631 nmcd->hdr.code = NM_CUSTOMDRAW;
632 nmcd->dwDrawStage = dwDrawStage;
633 nmcd->hdc = hdc;
634 nmcd->rc = rc;
635 nmcd->dwItemSpec = 0;
636 nmcd->uItemState = 0;
637 nmcd->lItemlParam = 0;
638 nmcdhdr.clrText = infoPtr->clrText;
639 nmcdhdr.clrTextBk = infoPtr->clrBk;
640 nmcdhdr.iLevel = 0;
641
642 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)&nmcdhdr);
643 }
644
645
646
647 /* FIXME: need to find out when the flags in uItemState need to be set */
648
649 static BOOL
650 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
651 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
652 NMTVCUSTOMDRAW *nmcdhdr)
653 {
654 HWND hwnd = infoPtr->hwnd;
655 LPNMCUSTOMDRAW nmcd;
656 DWORD dwDrawStage;
657 DWORD_PTR dwItemSpec;
658 UINT uItemState;
659 INT retval;
660
661 dwDrawStage = CDDS_ITEM | uItemDrawState;
662 dwItemSpec = (DWORD_PTR)wineItem;
663 uItemState = 0;
664 if (wineItem->state & TVIS_SELECTED)
665 uItemState |= CDIS_SELECTED;
666 if (wineItem == infoPtr->selectedItem)
667 uItemState |= CDIS_FOCUS;
668 if (wineItem == infoPtr->hotItem)
669 uItemState |= CDIS_HOT;
670
671 nmcd = &nmcdhdr->nmcd;
672 nmcd->hdr.hwndFrom = hwnd;
673 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
674 nmcd->hdr.code = NM_CUSTOMDRAW;
675 nmcd->dwDrawStage = dwDrawStage;
676 nmcd->hdc = hdc;
677 nmcd->rc = wineItem->rect;
678 nmcd->dwItemSpec = dwItemSpec;
679 nmcd->uItemState = uItemState;
680 nmcd->lItemlParam = wineItem->lParam;
681 nmcdhdr->iLevel = wineItem->iLevel;
682
683 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
684 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
685 nmcd->uItemState, nmcd->lItemlParam);
686
687 retval = TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)nmcdhdr);
688
689 return retval;
690 }
691
692 static BOOL
693 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
694 {
695 HWND hwnd = infoPtr->hwnd;
696 NMTVDISPINFOW tvdi;
697 BOOL ret;
698
699 tvdi.hdr.hwndFrom = hwnd;
700 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
701 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
702
703 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
704 &tvdi.item, editItem);
705
706 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
707
708 if (!infoPtr->bNtfUnicode)
709 Free(tvdi.item.pszText);
710
711 return ret;
712 }
713
714 static void
715 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
716 UINT mask)
717 {
718 NMTVDISPINFOW callback;
719 HWND hwnd = infoPtr->hwnd;
720
721 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
722 mask &= wineItem->callbackMask;
723
724 if (mask == 0) return;
725
726 callback.hdr.hwndFrom = hwnd;
727 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
728 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
729
730 /* 'state' always contains valid value, as well as 'lParam'.
731 * All other parameters are uninitialized.
732 */
733 callback.item.pszText = wineItem->pszText;
734 callback.item.cchTextMax = wineItem->cchTextMax;
735 callback.item.mask = mask;
736 callback.item.hItem = wineItem;
737 callback.item.state = wineItem->state;
738 callback.item.lParam = wineItem->lParam;
739
740 /* If text is changed we need to recalculate textWidth */
741 if (mask & TVIF_TEXT)
742 wineItem->textWidth = 0;
743
744 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, (LPARAM)&callback);
745
746 /* It may have changed due to a call to SetItem. */
747 mask &= wineItem->callbackMask;
748
749 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
750 {
751 /* Instead of copying text into our buffer user specified its own */
752 if (!infoPtr->bNtfUnicode) {
753 LPWSTR newText;
754 int buflen;
755 int len = MultiByteToWideChar( CP_ACP, 0,
756 (LPSTR)callback.item.pszText, -1,
757 NULL, 0);
758 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
759 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
760
761 TRACE("returned str %s, len=%d, buflen=%d\n",
762 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
763
764 if (newText)
765 {
766 wineItem->pszText = newText;
767 MultiByteToWideChar( CP_ACP, 0,
768 (LPSTR)callback.item.pszText, -1,
769 wineItem->pszText, buflen/sizeof(WCHAR));
770 wineItem->cchTextMax = buflen/sizeof(WCHAR);
771 }
772 /* If ReAlloc fails we have nothing to do, but keep original text */
773 }
774 else {
775 int len = max(lstrlenW(callback.item.pszText) + 1,
776 TEXT_CALLBACK_SIZE);
777 LPWSTR newText = ReAlloc(wineItem->pszText, len);
778
779 TRACE("returned wstr %s, len=%d\n",
780 debugstr_w(callback.item.pszText), len);
781
782 if (newText)
783 {
784 wineItem->pszText = newText;
785 strcpyW(wineItem->pszText, callback.item.pszText);
786 wineItem->cchTextMax = len;
787 }
788 /* If ReAlloc fails we have nothing to do, but keep original text */
789 }
790 }
791 else if (mask & TVIF_TEXT) {
792 /* User put text into our buffer, that is ok unless A string */
793 if (!infoPtr->bNtfUnicode) {
794 LPWSTR newText;
795 LPWSTR oldText = NULL;
796 int buflen;
797 int len = MultiByteToWideChar( CP_ACP, 0,
798 (LPSTR)callback.item.pszText, -1,
799 NULL, 0);
800 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
801 newText = (LPWSTR)Alloc(buflen);
802
803 TRACE("same buffer str %s, len=%d, buflen=%d\n",
804 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
805
806 if (newText)
807 {
808 oldText = wineItem->pszText;
809 wineItem->pszText = newText;
810 MultiByteToWideChar( CP_ACP, 0,
811 (LPSTR)callback.item.pszText, -1,
812 wineItem->pszText, buflen/sizeof(WCHAR));
813 wineItem->cchTextMax = buflen/sizeof(WCHAR);
814 Free(oldText);
815 }
816 }
817 }
818
819 if (mask & TVIF_IMAGE)
820 wineItem->iImage = callback.item.iImage;
821
822 if (mask & TVIF_SELECTEDIMAGE)
823 wineItem->iSelectedImage = callback.item.iSelectedImage;
824
825 if (mask & TVIF_CHILDREN)
826 wineItem->cChildren = callback.item.cChildren;
827
828 /* These members are now permanently set. */
829 if (callback.item.mask & TVIF_DI_SETITEM)
830 wineItem->callbackMask &= ~callback.item.mask;
831 }
832
833 /***************************************************************************
834 * This function uses cChildren field to decide whether the item has
835 * children or not.
836 * Note: if this returns TRUE, the child items may not actually exist,
837 * they could be virtual.
838 *
839 * Just use wineItem->firstChild to check for physical children.
840 */
841 static BOOL
842 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
843 {
844 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
845
846 return wineItem->cChildren > 0;
847 }
848
849
850 /* Item Position ********************************************************/
851
852 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
853 static VOID
854 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
855 {
856 /* Same effect, different optimisation. */
857 #if 0
858 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
859 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
860 #else
861 BOOL lar = ((infoPtr->dwStyle
862 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
863 > TVS_LINESATROOT);
864 #endif
865
866 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
867 - infoPtr->scrollX;
868 item->stateOffset = item->linesOffset + infoPtr->uIndent;
869 item->imageOffset = item->stateOffset
870 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
871 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
872 }
873
874 static VOID
875 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
876 {
877 HDC hdc;
878 HFONT hOldFont=0;
879 SIZE sz;
880
881 /* DRAW's OM docker creates items like this */
882 if (item->pszText == NULL)
883 {
884 item->textWidth = 0;
885 return;
886 }
887
888 if (hDC != 0)
889 {
890 hdc = hDC;
891 }
892 else
893 {
894 hdc = GetDC(infoPtr->hwnd);
895 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
896 }
897
898 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
899 item->textWidth = sz.cx;
900
901 if (hDC == 0)
902 {
903 SelectObject(hdc, hOldFont);
904 ReleaseDC(0, hdc);
905 }
906 }
907
908 static VOID
909 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
910 {
911 item->rect.top = infoPtr->uItemHeight *
912 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
913
914 item->rect.bottom = item->rect.top
915 + infoPtr->uItemHeight * item->iIntegral - 1;
916
917 item->rect.left = 0;
918 item->rect.right = infoPtr->clientWidth;
919 }
920
921 /* We know that only items after start need their order updated. */
922 static void
923 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
924 {
925 TREEVIEW_ITEM *item;
926 int order;
927
928 if (!start)
929 {
930 start = infoPtr->root->firstChild;
931 order = 0;
932 }
933 else
934 order = start->visibleOrder;
935
936 for (item = start; item != NULL;
937 item = TREEVIEW_GetNextListItem(infoPtr, item))
938 {
939 if (!ISVISIBLE(item) && order > 0)
940 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
941 item->visibleOrder = order;
942 order += item->iIntegral;
943 }
944
945 infoPtr->maxVisibleOrder = order;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 TREEVIEW_ComputeItemRect(infoPtr, item);
951 }
952 }
953
954
955 /* Update metrics of all items in selected subtree.
956 * root must be expanded
957 */
958 static VOID
959 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
960 {
961 TREEVIEW_ITEM *sibling;
962 HDC hdc;
963 HFONT hOldFont;
964
965 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
966 return;
967
968 root->state &= ~TVIS_EXPANDED;
969 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
970 root->state |= TVIS_EXPANDED;
971
972 hdc = GetDC(infoPtr->hwnd);
973 hOldFont = SelectObject(hdc, infoPtr->hFont);
974
975 for (; root != sibling;
976 root = TREEVIEW_GetNextListItem(infoPtr, root))
977 {
978 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
979
980 if (root->callbackMask & TVIF_TEXT)
981 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
982
983 if (root->textWidth == 0)
984 {
985 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
986 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
987 }
988 }
989
990 SelectObject(hdc, hOldFont);
991 ReleaseDC(infoPtr->hwnd, hdc);
992 }
993
994 /* Item Allocation **********************************************************/
995
996 static TREEVIEW_ITEM *
997 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
998 {
999 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1000
1001 if (!newItem)
1002 return NULL;
1003
1004 /* I_IMAGENONE would make more sense but this is neither what is
1005 * documented (MSDN doesn't specify) nor what Windows actually does
1006 * (it sets it to zero)... and I can so imagine an application using
1007 * inc/dec to toggle the images. */
1008 newItem->iImage = 0;
1009 newItem->iSelectedImage = 0;
1010
1011 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1012 {
1013 Free(newItem);
1014 return NULL;
1015 }
1016
1017 return newItem;
1018 }
1019
1020 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1021 * free item->pszText. */
1022 static void
1023 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1024 {
1025 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1026 Free(item);
1027 if (infoPtr->selectedItem == item)
1028 infoPtr->selectedItem = NULL;
1029 if (infoPtr->hotItem == item)
1030 infoPtr->hotItem = NULL;
1031 if (infoPtr->focusedItem == item)
1032 infoPtr->focusedItem = NULL;
1033 if (infoPtr->firstVisible == item)
1034 infoPtr->firstVisible = NULL;
1035 if (infoPtr->dropItem == item)
1036 infoPtr->dropItem = NULL;
1037 if (infoPtr->insertMarkItem == item)
1038 infoPtr->insertMarkItem = NULL;
1039 }
1040
1041
1042 /* Item Insertion *******************************************************/
1043
1044 /***************************************************************************
1045 * This method inserts newItem before sibling as a child of parent.
1046 * sibling can be NULL, but only if parent has no children.
1047 */
1048 static void
1049 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1050 TREEVIEW_ITEM *parent)
1051 {
1052 assert(newItem != NULL);
1053 assert(parent != NULL);
1054
1055 if (sibling != NULL)
1056 {
1057 assert(sibling->parent == parent);
1058
1059 if (sibling->prevSibling != NULL)
1060 sibling->prevSibling->nextSibling = newItem;
1061
1062 newItem->prevSibling = sibling->prevSibling;
1063 sibling->prevSibling = newItem;
1064 }
1065 else
1066 newItem->prevSibling = NULL;
1067
1068 newItem->nextSibling = sibling;
1069
1070 if (parent->firstChild == sibling)
1071 parent->firstChild = newItem;
1072
1073 if (parent->lastChild == NULL)
1074 parent->lastChild = newItem;
1075 }
1076
1077 /***************************************************************************
1078 * This method inserts newItem after sibling as a child of parent.
1079 * sibling can be NULL, but only if parent has no children.
1080 */
1081 static void
1082 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1083 TREEVIEW_ITEM *parent)
1084 {
1085 assert(newItem != NULL);
1086 assert(parent != NULL);
1087
1088 if (sibling != NULL)
1089 {
1090 assert(sibling->parent == parent);
1091
1092 if (sibling->nextSibling != NULL)
1093 sibling->nextSibling->prevSibling = newItem;
1094
1095 newItem->nextSibling = sibling->nextSibling;
1096 sibling->nextSibling = newItem;
1097 }
1098 else
1099 newItem->nextSibling = NULL;
1100
1101 newItem->prevSibling = sibling;
1102
1103 if (parent->lastChild == sibling)
1104 parent->lastChild = newItem;
1105
1106 if (parent->firstChild == NULL)
1107 parent->firstChild = newItem;
1108 }
1109
1110 static BOOL
1111 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1112 const TVITEMEXW *tvItem, BOOL isW)
1113 {
1114 UINT callbackClear = 0;
1115 UINT callbackSet = 0;
1116
1117 TRACE("item %p\n", wineItem);
1118 /* Do this first in case it fails. */
1119 if (tvItem->mask & TVIF_TEXT)
1120 {
1121 wineItem->textWidth = 0; /* force width recalculation */
1122 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1123 {
1124 int len;
1125 LPWSTR newText;
1126 if (isW)
1127 len = lstrlenW(tvItem->pszText) + 1;
1128 else
1129 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1130
1131 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1132
1133 if (newText == NULL) return FALSE;
1134
1135 callbackClear |= TVIF_TEXT;
1136
1137 wineItem->pszText = newText;
1138 wineItem->cchTextMax = len;
1139 if (isW)
1140 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1141 else
1142 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1143 wineItem->pszText, len);
1144
1145 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1146 }
1147 else
1148 {
1149 callbackSet |= TVIF_TEXT;
1150
1151 wineItem->pszText = ReAlloc(wineItem->pszText,
1152 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1153 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1154 TRACE("setting callback, item %p\n", wineItem);
1155 }
1156 }
1157
1158 if (tvItem->mask & TVIF_CHILDREN)
1159 {
1160 wineItem->cChildren = tvItem->cChildren;
1161
1162 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1163 callbackSet |= TVIF_CHILDREN;
1164 else
1165 callbackClear |= TVIF_CHILDREN;
1166 }
1167
1168 if (tvItem->mask & TVIF_IMAGE)
1169 {
1170 wineItem->iImage = tvItem->iImage;
1171
1172 if (wineItem->iImage == I_IMAGECALLBACK)
1173 callbackSet |= TVIF_IMAGE;
1174 else
1175 callbackClear |= TVIF_IMAGE;
1176 }
1177
1178 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1179 {
1180 wineItem->iSelectedImage = tvItem->iSelectedImage;
1181
1182 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1183 callbackSet |= TVIF_SELECTEDIMAGE;
1184 else
1185 callbackClear |= TVIF_SELECTEDIMAGE;
1186 }
1187
1188 if (tvItem->mask & TVIF_PARAM)
1189 wineItem->lParam = tvItem->lParam;
1190
1191 /* If the application sets TVIF_INTEGRAL without
1192 * supplying a TVITEMEX structure, it's toast. */
1193 if (tvItem->mask & TVIF_INTEGRAL)
1194 wineItem->iIntegral = tvItem->iIntegral;
1195
1196 if (tvItem->mask & TVIF_STATE)
1197 {
1198 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1199 tvItem->stateMask);
1200 wineItem->state &= ~tvItem->stateMask;
1201 wineItem->state |= (tvItem->state & tvItem->stateMask);
1202 }
1203
1204 wineItem->callbackMask |= callbackSet;
1205 wineItem->callbackMask &= ~callbackClear;
1206
1207 return TRUE;
1208 }
1209
1210 /* Note that the new item is pre-zeroed. */
1211 static LRESULT
1212 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1213 {
1214 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1215 HTREEITEM insertAfter;
1216 TREEVIEW_ITEM *newItem, *parentItem;
1217 BOOL bTextUpdated = FALSE;
1218
1219 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1220 {
1221 parentItem = infoPtr->root;
1222 }
1223 else
1224 {
1225 parentItem = ptdi->hParent;
1226
1227 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1228 {
1229 WARN("invalid parent %p\n", parentItem);
1230 return (LRESULT)(HTREEITEM)NULL;
1231 }
1232 }
1233
1234 insertAfter = ptdi->hInsertAfter;
1235
1236 /* Validate this now for convenience. */
1237 switch ((DWORD_PTR)insertAfter)
1238 {
1239 case (DWORD_PTR)TVI_FIRST:
1240 case (DWORD_PTR)TVI_LAST:
1241 case (DWORD_PTR)TVI_SORT:
1242 break;
1243
1244 default:
1245 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1246 insertAfter->parent != parentItem)
1247 {
1248 WARN("invalid insert after %p\n", insertAfter);
1249 insertAfter = TVI_LAST;
1250 }
1251 }
1252
1253 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1254 (tvItem->mask & TVIF_TEXT)
1255 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1256 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1257 : "<no label>");
1258
1259 newItem = TREEVIEW_AllocateItem(infoPtr);
1260 if (newItem == NULL)
1261 return (LRESULT)(HTREEITEM)NULL;
1262
1263 newItem->parent = parentItem;
1264 newItem->iIntegral = 1;
1265
1266 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1267 return (LRESULT)(HTREEITEM)NULL;
1268
1269 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1270
1271 infoPtr->uNumItems++;
1272
1273 switch ((DWORD_PTR)insertAfter)
1274 {
1275 case (DWORD_PTR)TVI_FIRST:
1276 {
1277 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1278 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1279 if (infoPtr->firstVisible == originalFirst)
1280 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1281 }
1282 break;
1283
1284 case (DWORD_PTR)TVI_LAST:
1285 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1286 break;
1287
1288 /* hInsertAfter names a specific item we want to insert after */
1289 default:
1290 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1291 break;
1292
1293 case (DWORD_PTR)TVI_SORT:
1294 {
1295 TREEVIEW_ITEM *aChild;
1296 TREEVIEW_ITEM *previousChild = NULL;
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 BOOL bItemInserted = FALSE;
1299
1300 aChild = parentItem->firstChild;
1301
1302 bTextUpdated = TRUE;
1303 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1304
1305 /* Iterate the parent children to see where we fit in */
1306 while (aChild != NULL)
1307 {
1308 INT comp;
1309
1310 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1311 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1312
1313 if (comp < 0) /* we are smaller than the current one */
1314 {
1315 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1316 if (infoPtr->firstVisible == originalFirst &&
1317 aChild == originalFirst)
1318 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1319 bItemInserted = TRUE;
1320 break;
1321 }
1322 else if (comp > 0) /* we are bigger than the current one */
1323 {
1324 previousChild = aChild;
1325
1326 /* This will help us to exit if there is no more sibling */
1327 aChild = (aChild->nextSibling == 0)
1328 ? NULL
1329 : aChild->nextSibling;
1330
1331 /* Look at the next item */
1332 continue;
1333 }
1334 else if (comp == 0)
1335 {
1336 /*
1337 * An item with this name is already existing, therefore,
1338 * we add after the one we found
1339 */
1340 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1341 bItemInserted = TRUE;
1342 break;
1343 }
1344 }
1345
1346 /*
1347 * we reach the end of the child list and the item has not
1348 * yet been inserted, therefore, insert it after the last child.
1349 */
1350 if ((!bItemInserted) && (aChild == NULL))
1351 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1352
1353 break;
1354 }
1355 }
1356
1357
1358 TRACE("new item %p; parent %p, mask %x\n", newItem,
1359 newItem->parent, tvItem->mask);
1360
1361 newItem->iLevel = newItem->parent->iLevel + 1;
1362
1363 if (newItem->parent->cChildren == 0)
1364 newItem->parent->cChildren = 1;
1365
1366 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1367 {
1368 if (STATEIMAGEINDEX(newItem->state) == 0)
1369 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1370 }
1371
1372 if (infoPtr->firstVisible == NULL)
1373 infoPtr->firstVisible = newItem;
1374
1375 TREEVIEW_VerifyTree(infoPtr);
1376
1377 if (parentItem == infoPtr->root ||
1378 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1379 {
1380 TREEVIEW_ITEM *item;
1381 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1382
1383 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1384 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1385
1386 if (!bTextUpdated)
1387 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1388
1389 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1390 TREEVIEW_UpdateScrollBars(infoPtr);
1391 /*
1392 * if the item was inserted in a visible part of the tree,
1393 * invalidate it, as well as those after it
1394 */
1395 for (item = newItem;
1396 item != NULL;
1397 item = TREEVIEW_GetNextListItem(infoPtr, item))
1398 TREEVIEW_Invalidate(infoPtr, item);
1399 }
1400 else
1401 {
1402 newItem->visibleOrder = -1;
1403
1404 /* refresh treeview if newItem is the first item inserted under parentItem */
1405 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1406 {
1407 /* parent got '+' - update it */
1408 TREEVIEW_Invalidate(infoPtr, parentItem);
1409 }
1410 }
1411
1412 return (LRESULT)newItem;
1413 }
1414
1415 /* Item Deletion ************************************************************/
1416 static void
1417 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1418
1419 static void
1420 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1421 {
1422 TREEVIEW_ITEM *kill = parentItem->firstChild;
1423
1424 while (kill != NULL)
1425 {
1426 TREEVIEW_ITEM *next = kill->nextSibling;
1427
1428 TREEVIEW_RemoveItem(infoPtr, kill);
1429
1430 kill = next;
1431 }
1432
1433 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1434 assert(parentItem->firstChild == NULL);
1435 assert(parentItem->lastChild == NULL);
1436 }
1437
1438 static void
1439 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1440 {
1441 TREEVIEW_ITEM *parentItem = item->parent;
1442
1443 assert(item != NULL);
1444 assert(item->parent != NULL); /* i.e. it must not be the root */
1445
1446 if (parentItem->firstChild == item)
1447 parentItem->firstChild = item->nextSibling;
1448
1449 if (parentItem->lastChild == item)
1450 parentItem->lastChild = item->prevSibling;
1451
1452 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1453 && parentItem->cChildren > 0)
1454 parentItem->cChildren = 0;
1455
1456 if (item->prevSibling)
1457 item->prevSibling->nextSibling = item->nextSibling;
1458
1459 if (item->nextSibling)
1460 item->nextSibling->prevSibling = item->prevSibling;
1461 }
1462
1463 static void
1464 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1465 {
1466 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1467
1468 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1469 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1470
1471 if (wineItem->firstChild)
1472 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1473
1474 TREEVIEW_UnlinkItem(wineItem);
1475
1476 infoPtr->uNumItems--;
1477
1478 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1479 Free(wineItem->pszText);
1480
1481 TREEVIEW_FreeItem(infoPtr, wineItem);
1482 }
1483
1484
1485 /* Empty out the tree. */
1486 static void
1487 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1488 {
1489 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1490
1491 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1492 }
1493
1494 static LRESULT
1495 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1496 {
1497 TREEVIEW_ITEM *newSelection = NULL;
1498 TREEVIEW_ITEM *newFirstVisible = NULL;
1499 TREEVIEW_ITEM *parent, *prev = NULL;
1500 BOOL visible = FALSE;
1501
1502 if (wineItem == TVI_ROOT)
1503 {
1504 TRACE("TVI_ROOT\n");
1505 parent = infoPtr->root;
1506 newSelection = NULL;
1507 visible = TRUE;
1508 TREEVIEW_RemoveTree(infoPtr);
1509 }
1510 else
1511 {
1512 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1513 return FALSE;
1514
1515 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1516 parent = wineItem->parent;
1517
1518 if (ISVISIBLE(wineItem))
1519 {
1520 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1521 visible = TRUE;
1522 }
1523
1524 if (infoPtr->selectedItem != NULL
1525 && (wineItem == infoPtr->selectedItem
1526 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1527 {
1528 if (wineItem->nextSibling)
1529 newSelection = wineItem->nextSibling;
1530 else if (wineItem->parent != infoPtr->root)
1531 newSelection = wineItem->parent;
1532 else
1533 newSelection = wineItem->prevSibling;
1534 TRACE("newSelection = %p\n", newSelection);
1535 }
1536
1537 if (infoPtr->firstVisible == wineItem)
1538 {
1539 if (wineItem->nextSibling)
1540 newFirstVisible = wineItem->nextSibling;
1541 else if (wineItem->prevSibling)
1542 newFirstVisible = wineItem->prevSibling;
1543 else if (wineItem->parent != infoPtr->root)
1544 newFirstVisible = wineItem->parent;
1545 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1546 }
1547 else
1548 newFirstVisible = infoPtr->firstVisible;
1549
1550 TREEVIEW_RemoveItem(infoPtr, wineItem);
1551 }
1552
1553 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1554 if (!infoPtr->selectedItem && newSelection)
1555 {
1556 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1557 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1558 }
1559
1560 /* Validate insertMark dropItem.
1561 * hotItem ??? - used for comparison only.
1562 */
1563 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1564 infoPtr->insertMarkItem = 0;
1565
1566 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1567 infoPtr->dropItem = 0;
1568
1569 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1570 newFirstVisible = infoPtr->root->firstChild;
1571
1572 TREEVIEW_VerifyTree(infoPtr);
1573
1574
1575 if (visible)
1576 {
1577 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1578 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1579 TREEVIEW_UpdateScrollBars(infoPtr);
1580 TREEVIEW_Invalidate(infoPtr, NULL);
1581 }
1582 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1583 {
1584 /* parent lost '+/-' - update it */
1585 TREEVIEW_Invalidate(infoPtr, parent);
1586 }
1587
1588 return TRUE;
1589 }
1590
1591
1592 /* Get/Set Messages *********************************************************/
1593 static LRESULT
1594 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1595 {
1596 if(wParam)
1597 infoPtr->bRedraw = TRUE;
1598 else
1599 infoPtr->bRedraw = FALSE;
1600
1601 return 0;
1602 }
1603
1604 static LRESULT
1605 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1606 {
1607 TRACE("\n");
1608 return infoPtr->uIndent;
1609 }
1610
1611 static LRESULT
1612 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1613 {
1614 TRACE("\n");
1615
1616 if (newIndent < MINIMUM_INDENT)
1617 newIndent = MINIMUM_INDENT;
1618
1619 if (infoPtr->uIndent != newIndent)
1620 {
1621 infoPtr->uIndent = newIndent;
1622 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1623 TREEVIEW_UpdateScrollBars(infoPtr);
1624 TREEVIEW_Invalidate(infoPtr, NULL);
1625 }
1626
1627 return 0;
1628 }
1629
1630
1631 static LRESULT
1632 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1633 {
1634 TRACE("\n");
1635 return (LRESULT)infoPtr->hwndToolTip;
1636 }
1637
1638 static LRESULT
1639 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1640 {
1641 HWND prevToolTip;
1642
1643 TRACE("\n");
1644 prevToolTip = infoPtr->hwndToolTip;
1645 infoPtr->hwndToolTip = hwndTT;
1646
1647 return (LRESULT)prevToolTip;
1648 }
1649
1650 static LRESULT
1651 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1652 {
1653 BOOL rc = infoPtr->bNtfUnicode;
1654 infoPtr->bNtfUnicode = fUnicode;
1655 return rc;
1656 }
1657
1658 static LRESULT
1659 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1660 {
1661 return infoPtr->bNtfUnicode;
1662 }
1663
1664 static LRESULT
1665 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1666 {
1667 return infoPtr->uScrollTime;
1668 }
1669
1670 static LRESULT
1671 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1672 {
1673 UINT uOldScrollTime = infoPtr->uScrollTime;
1674
1675 infoPtr->uScrollTime = min(uScrollTime, 100);
1676
1677 return uOldScrollTime;
1678 }
1679
1680
1681 static LRESULT
1682 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1683 {
1684 TRACE("\n");
1685
1686 switch (wParam)
1687 {
1688 case (WPARAM)TVSIL_NORMAL:
1689 return (LRESULT)infoPtr->himlNormal;
1690
1691 case (WPARAM)TVSIL_STATE:
1692 return (LRESULT)infoPtr->himlState;
1693
1694 default:
1695 return 0;
1696 }
1697 }
1698
1699 #define TVHEIGHT_MIN 16
1700 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1701
1702 /* Compute the natural height for items. */
1703 static UINT
1704 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1705 {
1706 TEXTMETRICW tm;
1707 HDC hdc = GetDC(0);
1708 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1709 UINT height;
1710
1711 /* Height is the maximum of:
1712 * 16 (a hack because our fonts are tiny), and
1713 * The text height + border & margin, and
1714 * The size of the normal image list
1715 */
1716 GetTextMetricsW(hdc, &tm);
1717 SelectObject(hdc, hOldFont);
1718 ReleaseDC(0, hdc);
1719
1720 height = TVHEIGHT_MIN;
1721 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1722 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1723 if (height < infoPtr->normalImageHeight)
1724 height = infoPtr->normalImageHeight;
1725
1726 /* Round down, unless we support odd ("non even") heights. */
1727 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1728 height &= ~1;
1729
1730 return height;
1731 }
1732
1733 static LRESULT
1734 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1735 {
1736 HIMAGELIST himlOld = 0;
1737 int oldWidth = infoPtr->normalImageWidth;
1738 int oldHeight = infoPtr->normalImageHeight;
1739
1740
1741 TRACE("%lx,%p\n", wParam, himlNew);
1742
1743 switch (wParam)
1744 {
1745 case (WPARAM)TVSIL_NORMAL:
1746 himlOld = infoPtr->himlNormal;
1747 infoPtr->himlNormal = himlNew;
1748
1749 if (himlNew != NULL)
1750 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1751 &infoPtr->normalImageHeight);
1752 else
1753 {
1754 infoPtr->normalImageWidth = 0;
1755 infoPtr->normalImageHeight = 0;
1756 }
1757
1758 break;
1759
1760 case (WPARAM)TVSIL_STATE:
1761 himlOld = infoPtr->himlState;
1762 infoPtr->himlState = himlNew;
1763
1764 if (himlNew != NULL)
1765 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1766 &infoPtr->stateImageHeight);
1767 else
1768 {
1769 infoPtr->stateImageWidth = 0;
1770 infoPtr->stateImageHeight = 0;
1771 }
1772
1773 break;
1774 }
1775
1776 if (oldWidth != infoPtr->normalImageWidth ||
1777 oldHeight != infoPtr->normalImageHeight)
1778 {
1779 BOOL bRecalcVisible = FALSE;
1780
1781 if (oldHeight != infoPtr->normalImageHeight &&
1782 !infoPtr->bHeightSet)
1783 {
1784 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1785 bRecalcVisible = TRUE;
1786 }
1787
1788 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1789 infoPtr->normalImageWidth != infoPtr->uIndent)
1790 {
1791 infoPtr->uIndent = infoPtr->normalImageWidth;
1792 bRecalcVisible = TRUE;
1793 }
1794
1795 if (bRecalcVisible)
1796 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1797
1798 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1799 TREEVIEW_UpdateScrollBars(infoPtr);
1800 }
1801
1802 TREEVIEW_Invalidate(infoPtr, NULL);
1803
1804 return (LRESULT)himlOld;
1805 }
1806
1807 static LRESULT
1808 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1809 {
1810 INT prevHeight = infoPtr->uItemHeight;
1811
1812 TRACE("%d\n", newHeight);
1813 if (newHeight == -1)
1814 {
1815 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1816 infoPtr->bHeightSet = FALSE;
1817 }
1818 else
1819 {
1820 infoPtr->uItemHeight = newHeight;
1821 infoPtr->bHeightSet = TRUE;
1822 }
1823
1824 /* Round down, unless we support odd ("non even") heights. */
1825 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1826 infoPtr->uItemHeight &= ~1;
1827
1828 if (infoPtr->uItemHeight != prevHeight)
1829 {
1830 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1831 TREEVIEW_UpdateScrollBars(infoPtr);
1832 TREEVIEW_Invalidate(infoPtr, NULL);
1833 }
1834
1835 return prevHeight;
1836 }
1837
1838 static LRESULT
1839 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1840 {
1841 TRACE("\n");
1842 return infoPtr->uItemHeight;
1843 }
1844
1845
1846 static LRESULT
1847 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1848 {
1849 TRACE("%p\n", infoPtr->hFont);
1850 return (LRESULT)infoPtr->hFont;
1851 }
1852
1853
1854 static INT CALLBACK
1855 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1856 {
1857 (void)unused;
1858
1859 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1860
1861 return 1;
1862 }
1863
1864 static LRESULT
1865 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1866 {
1867 UINT uHeight = infoPtr->uItemHeight;
1868
1869 TRACE("%p %i\n", hFont, bRedraw);
1870
1871 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1872
1873 DeleteObject(infoPtr->hBoldFont);
1874 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1875 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1876
1877 if (!infoPtr->bHeightSet)
1878 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1879
1880 if (uHeight != infoPtr->uItemHeight)
1881 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1882
1883 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1884
1885 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1886 TREEVIEW_UpdateScrollBars(infoPtr);
1887
1888 if (bRedraw)
1889 TREEVIEW_Invalidate(infoPtr, NULL);
1890
1891 return 0;
1892 }
1893
1894
1895 static LRESULT
1896 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1897 {
1898 TRACE("\n");
1899 return (LRESULT)infoPtr->clrLine;
1900 }
1901
1902 static LRESULT
1903 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1904 {
1905 COLORREF prevColor = infoPtr->clrLine;
1906
1907 TRACE("\n");
1908 infoPtr->clrLine = color;
1909 return (LRESULT)prevColor;
1910 }
1911
1912
1913 static LRESULT
1914 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1915 {
1916 TRACE("\n");
1917 return (LRESULT)infoPtr->clrText;
1918 }
1919
1920 static LRESULT
1921 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1922 {
1923 COLORREF prevColor = infoPtr->clrText;
1924
1925 TRACE("\n");
1926 infoPtr->clrText = color;
1927
1928 if (infoPtr->clrText != prevColor)
1929 TREEVIEW_Invalidate(infoPtr, NULL);
1930
1931 return (LRESULT)prevColor;
1932 }
1933
1934
1935 static LRESULT
1936 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1937 {
1938 TRACE("\n");
1939 return (LRESULT)infoPtr->clrBk;
1940 }
1941
1942 static LRESULT
1943 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1944 {
1945 COLORREF prevColor = infoPtr->clrBk;
1946
1947 TRACE("\n");
1948 infoPtr->clrBk = newColor;
1949
1950 if (newColor != prevColor)
1951 TREEVIEW_Invalidate(infoPtr, NULL);
1952
1953 return (LRESULT)prevColor;
1954 }
1955
1956
1957 static LRESULT
1958 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1959 {
1960 TRACE("\n");
1961 return (LRESULT)infoPtr->clrInsertMark;
1962 }
1963
1964 static LRESULT
1965 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1966 {
1967 COLORREF prevColor = infoPtr->clrInsertMark;
1968
1969 TRACE("%x\n", color);
1970 infoPtr->clrInsertMark = color;
1971
1972 return (LRESULT)prevColor;
1973 }
1974
1975
1976 static LRESULT
1977 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1978 {
1979 TRACE("%d %p\n", wParam, item);
1980
1981 if (!TREEVIEW_ValidItem(infoPtr, item))
1982 return 0;
1983
1984 infoPtr->insertBeforeorAfter = wParam;
1985 infoPtr->insertMarkItem = item;
1986
1987 TREEVIEW_Invalidate(infoPtr, NULL);
1988
1989 return 1;
1990 }
1991
1992
1993 /************************************************************************
1994 * Some serious braindamage here. lParam is a pointer to both the
1995 * input HTREEITEM and the output RECT.
1996 */
1997 static LRESULT
1998 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1999 {
2000 TREEVIEW_ITEM *wineItem;
2001 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2002
2003 TRACE("\n");
2004 /*
2005 * validate parameters
2006 */
2007 if (pItem == NULL)
2008 return FALSE;
2009
2010 wineItem = *pItem;
2011 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2012 return FALSE;
2013
2014 /*
2015 * If wParam is TRUE return the text size otherwise return
2016 * the whole item size
2017 */
2018 if (fTextRect)
2019 {
2020 /* Windows does not send TVN_GETDISPINFO here. */
2021
2022 lpRect->top = wineItem->rect.top;
2023 lpRect->bottom = wineItem->rect.bottom;
2024
2025 lpRect->left = wineItem->textOffset;
2026 if (!wineItem->textWidth)
2027 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2028
2029 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2030 }
2031 else
2032 {
2033 *lpRect = wineItem->rect;
2034 }
2035
2036 TRACE("%s [L:%d R:%d T:%d B:%d]\n", fTextRect ? "text" : "item",
2037 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2038
2039 return TRUE;
2040 }
2041
2042 static inline LRESULT
2043 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2044 {
2045 /* Surprise! This does not take integral height into account. */
2046 return infoPtr->clientHeight / infoPtr->uItemHeight;
2047 }
2048
2049
2050 static LRESULT
2051 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2052 {
2053 TREEVIEW_ITEM *wineItem;
2054
2055 wineItem = tvItem->hItem;
2056 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2057 return FALSE;
2058
2059 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2060
2061 if (tvItem->mask & TVIF_CHILDREN)
2062 {
2063 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2064 FIXME("I_CHILDRENCALLBACK not supported\n");
2065 tvItem->cChildren = wineItem->cChildren;
2066 }
2067
2068 if (tvItem->mask & TVIF_HANDLE)
2069 tvItem->hItem = wineItem;
2070
2071 if (tvItem->mask & TVIF_IMAGE)
2072 tvItem->iImage = wineItem->iImage;
2073
2074 if (tvItem->mask & TVIF_INTEGRAL)
2075 tvItem->iIntegral = wineItem->iIntegral;
2076
2077 /* undocumented: windows ignores TVIF_PARAM and
2078 * * always sets lParam
2079 */
2080 tvItem->lParam = wineItem->lParam;
2081
2082 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2083 tvItem->iSelectedImage = wineItem->iSelectedImage;
2084
2085 if (tvItem->mask & TVIF_STATE)
2086 /* Careful here - Windows ignores the stateMask when you get the state
2087 That contradicts the documentation, but makes more common sense, masking
2088 retrieval in this way seems overkill */
2089 tvItem->state = wineItem->state;
2090
2091 if (tvItem->mask & TVIF_TEXT)
2092 {
2093 if (isW)
2094 {
2095 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2096 {
2097 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2098 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2099 }
2100 else
2101 {
2102 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2103 }
2104 }
2105 else
2106 {
2107 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2108 {
2109 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2110 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2111 }
2112 else
2113 {
2114 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2115 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2116 }
2117 }
2118 }
2119 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2120 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2121
2122 return TRUE;
2123 }
2124
2125 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2126 * which is wrong. */
2127 static LRESULT
2128 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2129 {
2130 TREEVIEW_ITEM *wineItem;
2131 TREEVIEW_ITEM originalItem;
2132
2133 wineItem = tvItem->hItem;
2134
2135 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2136 tvItem->mask);
2137
2138 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2139 return FALSE;
2140
2141 /* store the original item values */
2142 originalItem = *wineItem;
2143
2144 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2145 return FALSE;
2146
2147 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2148 if ((tvItem->mask & TVIF_TEXT
2149 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2150 && ISVISIBLE(wineItem))
2151 {
2152 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2153 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2154 }
2155
2156 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2157 {
2158 /* The refresh updates everything, but we can't wait until then. */
2159 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2160
2161 /* if any of the item's values changed and it's not a callback, redraw the item */
2162 if (item_changed(&originalItem, wineItem, tvItem))
2163 {
2164 if (tvItem->mask & TVIF_INTEGRAL)
2165 {
2166 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2167 TREEVIEW_UpdateScrollBars(infoPtr);
2168
2169 TREEVIEW_Invalidate(infoPtr, NULL);
2170 }
2171 else
2172 {
2173 TREEVIEW_UpdateScrollBars(infoPtr);
2174 TREEVIEW_Invalidate(infoPtr, wineItem);
2175 }
2176 }
2177 }
2178
2179 return TRUE;
2180 }
2181
2182 static LRESULT
2183 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2184 {
2185 TRACE("\n");
2186
2187 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2188 return 0;
2189
2190 return (wineItem->state & mask);
2191 }
2192
2193 static LRESULT
2194 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2195 {
2196 TREEVIEW_ITEM *retval;
2197
2198 retval = 0;
2199
2200 /* handle all the global data here */
2201 switch (which)
2202 {
2203 case TVGN_CHILD: /* Special case: child of 0 is root */
2204 if (wineItem)
2205 break;
2206 /* fall through */
2207 case TVGN_ROOT:
2208 retval = infoPtr->root->firstChild;
2209 break;
2210
2211 case TVGN_CARET:
2212 retval = infoPtr->selectedItem;
2213 break;
2214
2215 case TVGN_FIRSTVISIBLE:
2216 retval = infoPtr->firstVisible;
2217 break;
2218
2219 case TVGN_DROPHILITE:
2220 retval = infoPtr->dropItem;
2221 break;
2222
2223 case TVGN_LASTVISIBLE:
2224 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2225 break;
2226 }
2227
2228 if (retval)
2229 {
2230 TRACE("flags:%x, returns %p\n", which, retval);
2231 return (LRESULT)retval;
2232 }
2233
2234 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2235
2236 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2237 return FALSE;
2238
2239 switch (which)
2240 {
2241 case TVGN_NEXT:
2242 retval = wineItem->nextSibling;
2243 break;
2244 case TVGN_PREVIOUS:
2245 retval = wineItem->prevSibling;
2246 break;
2247 case TVGN_PARENT:
2248 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2249 break;
2250 case TVGN_CHILD:
2251 retval = wineItem->firstChild;
2252 break;
2253 case TVGN_NEXTVISIBLE:
2254 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2255 break;
2256 case TVGN_PREVIOUSVISIBLE:
2257 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2258 break;
2259 default:
2260 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2261 break;
2262 }
2263
2264 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2265 return (LRESULT)retval;
2266 }
2267
2268
2269 static LRESULT
2270 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2271 {
2272 TRACE(" %d\n", infoPtr->uNumItems);
2273 return (LRESULT)infoPtr->uNumItems;
2274 }
2275
2276 static VOID
2277 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2278 {
2279 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2280 {
2281 static const unsigned int state_table[] = { 0, 2, 1 };
2282
2283 unsigned int state;
2284
2285 state = STATEIMAGEINDEX(item->state);
2286 TRACE("state:%x\n", state);
2287 item->state &= ~TVIS_STATEIMAGEMASK;
2288
2289 if (state < 3)
2290 state = state_table[state];
2291
2292 item->state |= INDEXTOSTATEIMAGEMASK(state);
2293
2294 TRACE("state:%x\n", state);
2295 TREEVIEW_Invalidate(infoPtr, item);
2296 }
2297 }
2298
2299
2300 /* Painting *************************************************************/
2301
2302 /* Draw the lines and expand button for an item. Also draws one section
2303 * of the line from item's parent to item's parent's next sibling. */
2304 static void
2305 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2306 {
2307 LONG centerx, centery;
2308 BOOL lar = ((infoPtr->dwStyle
2309 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2310 > TVS_LINESATROOT);
2311 HBRUSH hbr, hbrOld;
2312
2313 if (!lar && item->iLevel == 0)
2314 return;
2315
2316 hbr = CreateSolidBrush(infoPtr->clrBk);
2317 hbrOld = SelectObject(hdc, hbr);
2318
2319 centerx = (item->linesOffset + item->stateOffset) / 2;
2320 centery = (item->rect.top + item->rect.bottom) / 2;
2321
2322 if (infoPtr->dwStyle & TVS_HASLINES)
2323 {
2324 HPEN hOldPen, hNewPen;
2325 HTREEITEM parent;
2326 LOGBRUSH lb;
2327
2328 /* Get a dotted grey pen */
2329 lb.lbStyle = BS_SOLID;
2330 lb.lbColor = infoPtr->clrLine;
2331 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2332 hOldPen = SelectObject(hdc, hNewPen);
2333
2334 /* Make sure the center is on a dot (using +2 instead
2335 * of +1 gives us pixel-by-pixel compat with native) */
2336 centery = (centery + 2) & ~1;
2337
2338 MoveToEx(hdc, item->stateOffset, centery, NULL);
2339 LineTo(hdc, centerx - 1, centery);
2340
2341 if (item->prevSibling || item->parent != infoPtr->root)
2342 {
2343 MoveToEx(hdc, centerx, item->rect.top, NULL);
2344 LineTo(hdc, centerx, centery);
2345 }
2346
2347 if (item->nextSibling)
2348 {
2349 MoveToEx(hdc, centerx, centery, NULL);
2350 LineTo(hdc, centerx, item->rect.bottom + 1);
2351 }
2352
2353 /* Draw the line from our parent to its next sibling. */
2354 parent = item->parent;
2355 while (parent != infoPtr->root)
2356 {
2357 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2358
2359 if (parent->nextSibling
2360 /* skip top-levels unless TVS_LINESATROOT */
2361 && parent->stateOffset > parent->linesOffset)
2362 {
2363 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2364 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2365 }
2366
2367 parent = parent->parent;
2368 }
2369
2370 SelectObject(hdc, hOldPen);
2371 DeleteObject(hNewPen);
2372 }
2373
2374 /*
2375 * Display the (+/-) signs
2376 */
2377
2378 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2379 {
2380 if (item->cChildren)
2381 {
2382 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2383 if (theme)
2384 {
2385 RECT glyphRect = item->rect;
2386 glyphRect.left = item->linesOffset;
2387 glyphRect.right = item->stateOffset;
2388 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2389 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2390 &glyphRect, NULL);
2391 }
2392 else
2393 {
2394 LONG height = item->rect.bottom - item->rect.top;
2395 LONG width = item->stateOffset - item->linesOffset;
2396 LONG rectsize = min(height, width) / 4;
2397 /* plussize = ceil(rectsize * 3/4) */
2398 LONG plussize = (rectsize + 1) * 3 / 4;
2399
2400 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2401 HPEN hOldPen = SelectObject(hdc, hNewPen);
2402
2403 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2404 centerx + rectsize + 2, centery + rectsize + 2);
2405
2406 SelectObject(hdc, hOldPen);
2407 DeleteObject(hNewPen);
2408
2409 if (height < 18 || width < 18)
2410 {
2411 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2412 LineTo(hdc, centerx + plussize, centery);
2413
2414 if (!(item->state & TVIS_EXPANDED))
2415 {
2416 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2417 LineTo(hdc, centerx, centery + plussize);
2418 }
2419 }
2420 else
2421 {
2422 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2423 centerx + plussize, centery + 2);
2424
2425 if (!(item->state & TVIS_EXPANDED))
2426 {
2427 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2428 centerx + 2, centery + plussize);
2429 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2430 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2431 }
2432 }
2433 }
2434 }
2435 }
2436 SelectObject(hdc, hbrOld);
2437 DeleteObject(hbr);
2438 }
2439
2440 static void
2441 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2442 {
2443 INT cditem;
2444 HFONT hOldFont;
2445 COLORREF oldTextColor, oldTextBkColor;
2446 int centery;
2447 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2448 NMTVCUSTOMDRAW nmcdhdr;
2449
2450 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2451
2452 /* - If item is drop target or it is selected and window is in focus -
2453 * use blue background (COLOR_HIGHLIGHT).
2454 * - If item is selected, window is not in focus, but it has style
2455 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2456 * - Otherwise - use background color
2457 */
2458 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2459 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2460 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2461 {
2462 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2463 {
2464 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2465 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2466 }
2467 else
2468 {
2469 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2470 if (infoPtr->clrText == -1)
2471 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2472 else
2473 nmcdhdr.clrText = infoPtr->clrText;
2474 }
2475 }
2476 else
2477 {
2478 nmcdhdr.clrTextBk = infoPtr->clrBk;
2479 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2480 nmcdhdr.clrText = comctl32_color.clrHighlight;
2481 else if (infoPtr->clrText == -1)
2482 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2483 else
2484 nmcdhdr.clrText = infoPtr->clrText;
2485 }
2486
2487 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2488
2489 /* The custom draw handler can query the text rectangle,
2490 * so get ready. */
2491 /* should already be known, set to 0 when changed */
2492 if (!wineItem->textWidth)
2493 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2494
2495 cditem = 0;
2496
2497 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2498 {
2499 cditem = TREEVIEW_SendCustomDrawItemNotify
2500 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2501 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2502
2503 if (cditem & CDRF_SKIPDEFAULT)
2504 {
2505 SelectObject(hdc, hOldFont);
2506 return;
2507 }
2508 }
2509
2510 if (cditem & CDRF_NEWFONT)
2511 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2512
2513 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2514
2515 /* Set colors. Custom draw handler can change these so we do this after it. */
2516 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2517 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2518
2519 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2520
2521 /*
2522 * Display the images associated with this item
2523 */
2524 {
2525 INT imageIndex;
2526
2527 /* State images are displayed to the left of the Normal image
2528 * image number is in state; zero should be `display no image'.
2529 */
2530 imageIndex = STATEIMAGEINDEX(wineItem->state);
2531
2532 if (infoPtr->himlState && imageIndex)
2533 {
2534 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2535 wineItem->stateOffset,
2536 centery - infoPtr->stateImageHeight / 2,
2537 ILD_NORMAL);
2538 }
2539
2540 /* Now, draw the normal image; can be either selected or
2541 * non-selected image.
2542 */
2543
2544 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2545 {
2546 /* The item is currently selected */
2547 imageIndex = wineItem->iSelectedImage;
2548 }
2549 else
2550 {
2551 /* The item is not selected */
2552 imageIndex = wineItem->iImage;
2553 }
2554
2555 if (infoPtr->himlNormal)
2556 {
2557 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2558
2559 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2560 wineItem->imageOffset,
2561 centery - infoPtr->normalImageHeight / 2,
2562 ILD_NORMAL | ovlIdx);
2563 }
2564 }
2565
2566
2567 /*
2568 * Display the text associated with this item
2569 */
2570
2571 /* Don't paint item's text if it's being edited */
2572 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2573 {
2574 if (wineItem->pszText)
2575 {
2576 RECT rcText;
2577
2578 rcText.top = wineItem->rect.top;
2579 rcText.bottom = wineItem->rect.bottom;
2580 rcText.left = wineItem->textOffset;
2581 rcText.right = rcText.left + wineItem->textWidth + 4;
2582
2583 TRACE("drawing text %s at (%d,%d)-(%d,%d)\n",
2584 debugstr_w(wineItem->pszText),
2585 rcText.left, rcText.top, rcText.right, rcText.bottom);
2586
2587 /* Draw it */
2588 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2589 ETO_CLIPPED | ETO_OPAQUE,
2590 &rcText,
2591 wineItem->pszText,
2592 lstrlenW(wineItem->pszText),
2593 NULL);
2594
2595 /* Draw the box around the selected item */
2596 if ((wineItem == infoPtr->selectedItem) && inFocus)
2597 {
2598 DrawFocusRect(hdc,&rcText);
2599 }
2600
2601 }
2602 }
2603
2604 /* Draw insertion mark if necessary */
2605
2606 if (infoPtr->insertMarkItem)
2607 TRACE("item:%d,mark:%p\n",
2608 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2609 infoPtr->insertMarkItem);
2610
2611 if (wineItem == infoPtr->insertMarkItem)
2612 {
2613 HPEN hNewPen, hOldPen;
2614 int offset;
2615 int left, right;
2616
2617 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2618 hOldPen = SelectObject(hdc, hNewPen);
2619
2620 if (infoPtr->insertBeforeorAfter)
2621 offset = wineItem->rect.bottom - 1;
2622 else
2623 offset = wineItem->rect.top + 1;
2624
2625 left = wineItem->textOffset - 2;
2626 right = wineItem->textOffset + wineItem->textWidth + 2;
2627
2628 MoveToEx(hdc, left, offset - 3, NULL);
2629 LineTo(hdc, left, offset + 4);
2630
2631 MoveToEx(hdc, left, offset, NULL);
2632 LineTo(hdc, right + 1, offset);
2633
2634 MoveToEx(hdc, right, offset + 3, NULL);
2635 LineTo(hdc, right, offset - 4);
2636
2637 SelectObject(hdc, hOldPen);
2638 DeleteObject(hNewPen);
2639 }
2640
2641 if (cditem & CDRF_NOTIFYPOSTPAINT)
2642 {
2643 cditem = TREEVIEW_SendCustomDrawItemNotify
2644 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2645 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2646 }
2647
2648 /* Restore the hdc state */
2649 SetTextColor(hdc, oldTextColor);
2650 SetBkColor(hdc, oldTextBkColor);
2651 SelectObject(hdc, hOldFont);
2652 }
2653
2654 /* Computes treeHeight and treeWidth and updates the scroll bars.
2655 */
2656 static void
2657 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2658 {
2659 TREEVIEW_ITEM *wineItem;
2660 HWND hwnd = infoPtr->hwnd;
2661 BOOL vert = FALSE;
2662 BOOL horz = FALSE;
2663 SCROLLINFO si;
2664 LONG scrollX = infoPtr->scrollX;
2665
2666 infoPtr->treeWidth = 0;
2667 infoPtr->treeHeight = 0;
2668
2669 /* We iterate through all visible items in order to get the tree height
2670 * and width */
2671 wineItem = infoPtr->root->firstChild;
2672
2673 while (wineItem != NULL)
2674 {
2675 if (ISVISIBLE(wineItem))
2676 {
2677 /* actually we draw text at textOffset + 2 */
2678 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2679 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2680
2681 /* This is scroll-adjusted, but we fix this below. */
2682 infoPtr->treeHeight = wineItem->rect.bottom;
2683 }
2684
2685 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2686 }
2687
2688 /* Fix the scroll adjusted treeHeight and treeWidth. */
2689 if (infoPtr->root->firstChild)
2690 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2691
2692 infoPtr->treeWidth += infoPtr->scrollX;
2693
2694 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2695
2696 /* Adding one scroll bar may take up enough space that it forces us
2697 * to add the other as well. */
2698 if (infoPtr->treeHeight > infoPtr->clientHeight)
2699 {
2700 vert = TRUE;
2701
2702 if (infoPtr->treeWidth
2703 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2704 horz = TRUE;
2705 }
2706 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2707 horz = TRUE;
2708
2709 if (!vert && horz && infoPtr->treeHeight
2710 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2711 vert = TRUE;
2712
2713 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2714
2715 si.cbSize = sizeof(SCROLLINFO);
2716 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2717 si.nMin = 0;
2718
2719 if (vert)
2720 {
2721 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2722 if ( si.nPage && NULL != infoPtr->firstVisible)
2723 {
2724 si.nPos = infoPtr->firstVisible->visibleOrder;
2725 si.nMax = infoPtr->maxVisibleOrder - 1;
2726
2727 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2728
2729 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2730 ShowScrollBar(hwnd, SB_VERT, TRUE);
2731 infoPtr->uInternalStatus |= TV_VSCROLL;
2732 }
2733 else
2734 {
2735 if (infoPtr->uInternalStatus & TV_VSCROLL)
2736 ShowScrollBar(hwnd, SB_VERT, FALSE);
2737 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2738 }
2739 }
2740 else
2741 {
2742 if (infoPtr->uInternalStatus & TV_VSCROLL)
2743 ShowScrollBar(hwnd, SB_VERT, FALSE);
2744 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2745 }
2746
2747 if (horz)
2748 {
2749 si.nPage = infoPtr->clientWidth;
2750 si.nPos = infoPtr->scrollX;
2751 si.nMax = infoPtr->treeWidth - 1;
2752
2753 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2754 {
2755 si.nPos = si.nMax - max( si.nPage-1, 0 );
2756 scrollX = si.nPos;
2757 }
2758
2759 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2760 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2761 infoPtr->uInternalStatus |= TV_HSCROLL;
2762
2763 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2764 TREEVIEW_HScroll(infoPtr,
2765 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2766 }
2767 else
2768 {
2769 if (infoPtr->uInternalStatus & TV_HSCROLL)
2770 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2771 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2772
2773 scrollX = 0;
2774 if (infoPtr->scrollX != 0)
2775 {
2776 TREEVIEW_HScroll(infoPtr,
2777 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2778 }
2779 }
2780
2781 if (!horz)
2782 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2783 }
2784
2785 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2786 static LRESULT
2787 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hDC)
2788 {
2789 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2790 RECT rect;
2791
2792 GetClientRect(infoPtr->hwnd, &rect);
2793 FillRect(hDC, &rect, hBrush);
2794 DeleteObject(hBrush);
2795
2796 return 1;
2797 }
2798
2799 static void
2800 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2801 {
2802 HWND hwnd = infoPtr->hwnd;
2803 RECT rect = *rc;
2804 TREEVIEW_ITEM *wineItem;
2805
2806 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2807 {
2808 TRACE("empty window\n");
2809 return;
2810 }
2811
2812 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2813 hdc, rect);
2814
2815 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2816 {
2817 ReleaseDC(hwnd, hdc);
2818 return;
2819 }
2820
2821 for (wineItem = infoPtr->root->firstChild;
2822 wineItem != NULL;
2823 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2824 {
2825 if (ISVISIBLE(wineItem))
2826 {
2827 /* Avoid unneeded calculations */
2828 if (wineItem->rect.top > rect.bottom)
2829 break;
2830 if (wineItem->rect.bottom < rect.top)
2831 continue;
2832
2833 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2834 }
2835 }
2836
2837 TREEVIEW_UpdateScrollBars(infoPtr);
2838
2839 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2840 infoPtr->cdmode =
2841 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2842 }
2843
2844 static void
2845 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2846 {
2847 if (item != NULL)
2848 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2849 else
2850 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2851 }
2852
2853 static LRESULT
2854 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2855 {
2856 HDC hdc;
2857 PAINTSTRUCT ps;
2858 RECT rc;
2859
2860 TRACE("\n");
2861
2862 if (wParam)
2863 {
2864 hdc = (HDC)wParam;
2865 GetClientRect(infoPtr->hwnd, &rc);
2866 TREEVIEW_EraseBackground(infoPtr, hdc);
2867 }
2868 else
2869 {
2870 hdc = BeginPaint(infoPtr->hwnd, &ps);
2871 rc = ps.rcPaint;
2872 }
2873
2874 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2875 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2876
2877 if (!wParam)
2878 EndPaint(infoPtr->hwnd, &ps);
2879
2880 return 0;
2881 }
2882
2883
2884 /* Sorting **************************************************************/
2885
2886 /***************************************************************************
2887 * Forward the DPA local callback to the treeview owner callback
2888 */
2889 static INT WINAPI
2890 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2891 const TVSORTCB *pCallBackSort)
2892 {
2893 /* Forward the call to the client-defined callback */
2894 return pCallBackSort->lpfnCompare(first->lParam,
2895 second->lParam,
2896 pCallBackSort->lParam);
2897 }
2898
2899 /***************************************************************************
2900 * Treeview native sort routine: sort on item text.
2901 */
2902 static INT WINAPI
2903 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2904 const TREEVIEW_INFO *infoPtr)
2905 {
2906 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2907 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2908
2909 if(first->pszText && second->pszText)
2910 return lstrcmpiW(first->pszText, second->pszText);
2911 else if(first->pszText)
2912 return -1;
2913 else if(second->pszText)
2914 return 1;
2915 else
2916 return 0;
2917 }
2918
2919 /* Returns the number of physical children belonging to item. */
2920 static INT
2921 TREEVIEW_CountChildren(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2922 {
2923 INT cChildren = 0;
2924 HTREEITEM hti;
2925
2926 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2927 cChildren++;
2928
2929 return cChildren;
2930 }
2931
2932 /* Returns a DPA containing a pointer to each physical child of item in
2933 * sibling order. If item has no children, an empty DPA is returned. */
2934 static HDPA
2935 TREEVIEW_BuildChildDPA(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2936 {
2937 HTREEITEM child = item->firstChild;
2938
2939 HDPA list = DPA_Create(8);
2940 if (list == 0) return NULL;
2941
2942 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2943 {
2944 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2945 {
2946 DPA_Destroy(list);
2947 return NULL;
2948 }
2949 }
2950
2951 return list;
2952 }
2953
2954 /***************************************************************************
2955 * Setup the treeview structure with regards of the sort method
2956 * and sort the children of the TV item specified in lParam
2957 * fRecurse: currently unused. Should be zero.
2958 * parent: if pSort!=NULL, should equal pSort->hParent.
2959 * otherwise, item which child items are to be sorted.
2960 * pSort: sort method info. if NULL, sort on item text.
2961 * if non-NULL, sort on item's lParam content, and let the
2962 * application decide what that means. See also TVM_SORTCHILDRENCB.
2963 */
2964
2965 static LRESULT
2966 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2967 LPTVSORTCB pSort)
2968 {
2969 INT cChildren;
2970 PFNDPACOMPARE pfnCompare;
2971 LPARAM lpCompare;
2972
2973 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2974 if (parent == TVI_ROOT || parent == NULL)
2975 parent = infoPtr->root;
2976
2977 /* Check for a valid handle to the parent item */
2978 if (!TREEVIEW_ValidItem(infoPtr, parent))
2979 {
2980 ERR("invalid item hParent=%p\n", parent);
2981 return FALSE;
2982 }
2983
2984 if (pSort)
2985 {
2986 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2987 lpCompare = (LPARAM)pSort;
2988 }
2989 else
2990 {
2991 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2992 lpCompare = (LPARAM)infoPtr;
2993 }
2994
2995 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2996
2997 /* Make sure there is something to sort */
2998 if (cChildren > 1)
2999 {
3000 /* TREEVIEW_ITEM rechaining */
3001 INT count = 0;
3002 HTREEITEM item = 0;
3003 HTREEITEM nextItem = 0;
3004 HTREEITEM prevItem = 0;
3005
3006 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
3007
3008 if (sortList == NULL)
3009 return FALSE;
3010
3011 /* let DPA sort the list */
3012 DPA_Sort(sortList, pfnCompare, lpCompare);
3013
3014 /* The order of DPA entries has been changed, so fixup the
3015 * nextSibling and prevSibling pointers. */
3016
3017 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3018 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3019 {
3020 /* link the two current item together */
3021 item->nextSibling = nextItem;
3022 nextItem->prevSibling = item;
3023
3024 if (prevItem == NULL)
3025 {
3026 /* this is the first item, update the parent */
3027 parent->firstChild = item;
3028 item->prevSibling = NULL;
3029 }
3030 else
3031 {
3032 /* fix the back chaining */
3033 item->prevSibling = prevItem;
3034 }
3035
3036 /* get ready for the next one */
3037 prevItem = item;
3038 item = nextItem;
3039 }
3040
3041 /* the last item is pointed to by item and never has a sibling */
3042 item->nextSibling = NULL;
3043 parent->lastChild = item;
3044
3045 DPA_Destroy(sortList);
3046
3047 TREEVIEW_VerifyTree(infoPtr);
3048
3049 if (parent->state & TVIS_EXPANDED)
3050 {
3051 int visOrder = infoPtr->firstVisible->visibleOrder;
3052
3053 if (parent == infoPtr->root)
3054 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3055 else
3056 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3057
3058 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3059 {
3060 TREEVIEW_ITEM *item;
3061
3062 for (item = infoPtr->root->firstChild; item != NULL;
3063 item = TREEVIEW_GetNextListItem(infoPtr, item))
3064 {
3065 if (item->visibleOrder == visOrder)
3066 break;
3067 }
3068
3069 if (!item) item = parent->firstChild;
3070 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3071 }
3072
3073 TREEVIEW_Invalidate(infoPtr, NULL);
3074 }
3075
3076 return TRUE;
3077 }
3078 return FALSE;
3079 }
3080
3081
3082 /***************************************************************************
3083 * Setup the treeview structure with regards of the sort method
3084 * and sort the children of the TV item specified in lParam
3085 */
3086 static LRESULT
3087 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3088 {
3089 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3090 }
3091
3092
3093 /***************************************************************************
3094 * Sort the children of the TV item specified in lParam.
3095 */
3096 static LRESULT
3097 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3098 {
3099 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3100 }
3101
3102
3103 /* Expansion/Collapse ***************************************************/
3104
3105 static BOOL
3106 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3107 UINT action)
3108 {
3109 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3110 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3111 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3112 0, wineItem);
3113 }
3114
3115 static VOID
3116 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3117 UINT action)
3118 {
3119 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3120 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3121 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3122 0, wineItem);
3123 }
3124
3125
3126 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3127 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3128 static BOOL
3129 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3130 BOOL bRemoveChildren, BOOL bUser)
3131 {
3132 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3133 BOOL bSetSelection, bSetFirstVisible;
3134 RECT scrollRect;
3135 LONG scrollDist = 0;
3136 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3137
3138 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3139
3140 if (!(wineItem->state & TVIS_EXPANDED))
3141 return FALSE;
3142
3143 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3144 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3145
3146 if (wineItem->firstChild == NULL)
3147 return FALSE;
3148
3149 wineItem->state &= ~TVIS_EXPANDED;
3150
3151 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3152 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3153
3154 bSetSelection = (infoPtr->selectedItem != NULL
3155 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3156
3157 bSetFirstVisible = (infoPtr->firstVisible != NULL
3158 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3159
3160 tmpItem = wineItem;
3161 while (tmpItem)
3162 {
3163 if (tmpItem->nextSibling)
3164 {
3165 nextItem = tmpItem->nextSibling;
3166 break;
3167 }
3168 tmpItem = tmpItem->parent;
3169 }
3170
3171 if (nextItem)
3172 scrollDist = nextItem->rect.top;
3173
3174 if (bRemoveChildren)
3175 {
3176 INT old_cChildren = wineItem->cChildren;
3177 TRACE("TVE_COLLAPSERESET\n");
3178 wineItem->state &= ~TVIS_EXPANDEDONCE;
3179 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3180 wineItem->cChildren = old_cChildren;
3181 }
3182
3183 if (wineItem->firstChild)
3184 {
3185 TREEVIEW_ITEM *item, *sibling;
3186
3187 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3188
3189 for (item = wineItem->firstChild; item != sibling;
3190 item = TREEVIEW_GetNextListItem(infoPtr, item))
3191 {
3192 item->visibleOrder = -1;
3193 }
3194 }
3195
3196 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3197
3198 if (nextItem)
3199 scrollDist = -(scrollDist - nextItem->rect.top);
3200
3201 if (bSetSelection)
3202 {
3203 /* Don't call DoSelectItem, it sends notifications. */
3204 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3205 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3206 wineItem->state |= TVIS_SELECTED;
3207 infoPtr->selectedItem = wineItem;
3208 }
3209
3210 TREEVIEW_UpdateScrollBars(infoPtr);
3211
3212 scrollRect.left = 0;
3213 scrollRect.right = infoPtr->clientWidth;
3214 scrollRect.bottom = infoPtr->clientHeight;
3215
3216 if (nextItem)
3217 {
3218 scrollRect.top = nextItem->rect.top;
3219
3220 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3221 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3222 TREEVIEW_Invalidate(infoPtr, wineItem);
3223 } else {
3224 scrollRect.top = wineItem->rect.top;
3225 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3226 }
3227
3228 TREEVIEW_SetFirstVisible(infoPtr,
3229 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3230 TRUE);
3231
3232 return TRUE;
3233 }
3234
3235 static BOOL
3236 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3237 BOOL bExpandPartial, BOOL bUser)
3238 {
3239 LONG scrollDist;
3240 LONG orgNextTop = 0;
3241 RECT scrollRect;
3242 TREEVIEW_ITEM *nextItem, *tmpItem;
3243
3244 TRACE("\n");
3245
3246 if (wineItem->state & TVIS_EXPANDED)
3247 return TRUE;
3248
3249 tmpItem = wineItem; nextItem = NULL;
3250 while (tmpItem)
3251 {
3252 if (tmpItem->nextSibling)
3253 {
3254 nextItem = tmpItem->nextSibling;
3255 break;
3256 }
3257 tmpItem = tmpItem->parent;
3258 }
3259
3260 if (nextItem)
3261 orgNextTop = nextItem->rect.top;
3262
3263 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3264
3265 if (bUser || ((wineItem->cChildren != 0) &&
3266 !(wineItem->state & TVIS_EXPANDEDONCE)))
3267 {
3268 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3269 {
3270 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3271 return FALSE;
3272 }
3273
3274 if (!wineItem->firstChild)
3275 return FALSE;
3276
3277 wineItem->state |= TVIS_EXPANDED;
3278 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3279 wineItem->state |= TVIS_EXPANDEDONCE;
3280 }
3281 else
3282 {
3283 if (!wineItem->firstChild)
3284 return FALSE;
3285
3286 /* this item has already been expanded */
3287 wineItem->state |= TVIS_EXPANDED;
3288 }
3289
3290 if (bExpandPartial)
3291 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3292
3293 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3294 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3295 TREEVIEW_UpdateScrollBars(infoPtr);
3296
3297 scrollRect.left = 0;
3298 scrollRect.bottom = infoPtr->treeHeight;
3299 scrollRect.right = infoPtr->clientWidth;
3300 if (nextItem)
3301 {
3302 scrollDist = nextItem->rect.top - orgNextTop;
3303 scrollRect.top = orgNextTop;
3304
3305 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3306 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3307 TREEVIEW_Invalidate (infoPtr, wineItem);
3308 } else {
3309 scrollRect.top = wineItem->rect.top;
3310 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3311 }
3312
3313 /* Scroll up so that as many children as possible are visible.
3314 * This fails when expanding causes an HScroll bar to appear, but we
3315 * don't know that yet, so the last item is obscured. */
3316 if (wineItem->firstChild != NULL)
3317 {
3318 int nChildren = wineItem->lastChild->visibleOrder
3319 - wineItem->firstChild->visibleOrder + 1;
3320
3321 int visible_pos = wineItem->visibleOrder
3322 - infoPtr->firstVisible->visibleOrder;
3323
3324 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3325
3326 if (visible_pos > 0 && nChildren > rows_below)
3327 {
3328 int scroll = nChildren - rows_below;
3329
3330 if (scroll > visible_pos)
3331 scroll = visible_pos;
3332
3333 if (scroll > 0)
3334 {
3335 TREEVIEW_ITEM *newFirstVisible
3336 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3337 scroll);
3338
3339
3340 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3341 }
3342 }
3343 }
3344
3345 return TRUE;
3346 }
3347
3348 static BOOL
3349 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3350 {
3351 TRACE("\n");
3352
3353 if (wineItem->state & TVIS_EXPANDED)
3354 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3355 else
3356 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3357 }
3358
3359 static VOID
3360 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3361 {
3362 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3363
3364 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3365 {
3366 if (TREEVIEW_HasChildren(infoPtr, item))
3367 TREEVIEW_ExpandAll(infoPtr, item);
3368 }
3369 }
3370
3371 /* Note:If the specified item is the child of a collapsed parent item,
3372 the parent's list of child items is (recursively) expanded to reveal the
3373 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3374 know if it also applies here.
3375 */
3376
3377 static LRESULT
3378 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3379 {
3380 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3381 return 0;
3382
3383 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3384 TREEVIEW_ItemName(wineItem), flag,
3385 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3386
3387 switch (flag & TVE_TOGGLE)
3388 {
3389 case TVE_COLLAPSE:
3390 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3391 FALSE);
3392
3393 case TVE_EXPAND:
3394 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3395 FALSE);
3396
3397 case TVE_TOGGLE:
3398 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3399
3400 default:
3401 return 0;
3402 }
3403
3404 #if 0
3405 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3406 #endif
3407 }
3408
3409 /* Hit-Testing **********************************************************/
3410
3411 static TREEVIEW_ITEM *
3412 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3413 {
3414 TREEVIEW_ITEM *wineItem;
3415 LONG row;
3416
3417 if (!infoPtr->firstVisible)
3418 return NULL;
3419
3420 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3421
3422 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3423 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3424 {
3425 if (row >= wineItem->visibleOrder
3426 && row < wineItem->visibleOrder + wineItem->iIntegral)
3427 break;
3428 }
3429
3430 return wineItem;
3431 }
3432
3433 static LRESULT
3434 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3435 {
3436 TREEVIEW_ITEM *wineItem;
3437 RECT rect;
3438 UINT status;
3439 LONG x, y;
3440
3441 lpht->hItem = 0;
3442 GetClientRect(infoPtr->hwnd, &rect);
3443 status = 0;
3444 x = lpht->pt.x;
3445 y = lpht->pt.y;
3446
3447 if (x < rect.left)
3448 {
3449 status |= TVHT_TOLEFT;
3450 }
3451 else if (x > rect.right)
3452 {
3453 status |= TVHT_TORIGHT;
3454 }
3455
3456 if (y < rect.top)
3457 {
3458 status |= TVHT_ABOVE;
3459 }
3460 else if (y > rect.bottom)
3461 {
3462 status |= TVHT_BELOW;
3463 }
3464
3465 if (status)
3466 {
3467 lpht->flags = status;
3468 return (LRESULT)(HTREEITEM)NULL;
3469 }
3470
3471 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3472 if (!wineItem)
3473 {
3474 lpht->flags = TVHT_NOWHERE;
3475 return (LRESULT)(HTREEITEM)NULL;
3476 }
3477
3478 if (x >= wineItem->textOffset + wineItem->textWidth)
3479 {
3480 lpht->flags = TVHT_ONITEMRIGHT;
3481 }
3482 else if (x >= wineItem->textOffset)
3483 {
3484 lpht->flags = TVHT_ONITEMLABEL;
3485 }
3486 else if (x >= wineItem->imageOffset)
3487 {
3488 lpht->flags = TVHT_ONITEMICON;
3489 }
3490 else if (x >= wineItem->stateOffset)
3491 {
3492 lpht->flags = TVHT_ONITEMSTATEICON;
3493 }
3494 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3495 {
3496 lpht->flags = TVHT_ONITEMBUTTON;
3497 }
3498 else
3499 {
3500 lpht->flags = TVHT_ONITEMINDENT;
3501 }
3502
3503 lpht->hItem = wineItem;
3504 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3505
3506 return (LRESULT)wineItem;
3507 }
3508
3509 /* Item Label Editing ***************************************************/
3510
3511 static LRESULT
3512 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3513 {
3514 return (LRESULT)infoPtr->hwndEdit;
3515 }
3516
3517 static LRESULT CALLBACK
3518 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3519 {
3520 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3521 BOOL bCancel = FALSE;
3522 LRESULT rc;
3523
3524 switch (uMsg)
3525 {
3526 case WM_PAINT:
3527 TRACE("WM_PAINT start\n");
3528 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3529 lParam);
3530 TRACE("WM_PAINT done\n");
3531 return rc;
3532
3533 case WM_KILLFOCUS:
3534 if (infoPtr->bIgnoreEditKillFocus)
3535 return TRUE;
3536 break;
3537
3538 case WM_GETDLGCODE:
3539 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3540
3541 case WM_KEYDOWN:
3542 if (wParam == (WPARAM)VK_ESCAPE)
3543 {
3544 bCancel = TRUE;
3545 break;
3546 }
3547 else if (wParam == (WPARAM)VK_RETURN)
3548 {
3549 break;
3550 }
3551
3552 /* fall through */
3553 default:
3554 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3555 }
3556
3557 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3558 /* eg. Using a messagebox */
3559
3560 infoPtr->bIgnoreEditKillFocus = TRUE;
3561 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3562 infoPtr->bIgnoreEditKillFocus = FALSE;
3563
3564 return 0;
3565 }
3566
3567
3568 /* should handle edit control messages here */
3569
3570 static LRESULT
3571 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3572 {
3573 TRACE("%lx %ld\n", wParam, lParam);
3574
3575 switch (HIWORD(wParam))
3576 {
3577 case EN_UPDATE:
3578 {
3579 /*
3580 * Adjust the edit window size
3581 */
3582 WCHAR buffer[1024];
3583 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3584 HDC hdc = GetDC(infoPtr->hwndEdit);
3585 SIZE sz;
3586 int len;
3587 HFONT hFont, hOldFont = 0;
3588
3589 infoPtr->bLabelChanged = TRUE;
3590
3591 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3592
3593 /* Select font to get the right dimension of the string */
3594 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3595
3596 if (hFont != 0)
3597 {
3598 hOldFont = SelectObject(hdc, hFont);
3599 }
3600
3601 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3602 {
3603 TEXTMETRICW textMetric;
3604
3605 /* Add Extra spacing for the next character */
3606 GetTextMetricsW(hdc, &textMetric);
3607 sz.cx += (textMetric.tmMaxCharWidth * 2);
3608
3609 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3610 sz.cx = min(sz.cx,
3611 infoPtr->clientWidth - editItem->textOffset + 2);
3612
3613 SetWindowPos(infoPtr->hwndEdit,
3614 HWND_TOP,
3615 0,
3616 0,
3617 sz.cx,
3618 editItem->rect.bottom - editItem->rect.top + 3,
3619 SWP_NOMOVE | SWP_DRAWFRAME);
3620 }
3621
3622 if (hFont != 0)
3623 {
3624 SelectObject(hdc, hOldFont);
3625 }
3626
3627 ReleaseDC(infoPtr->hwnd, hdc);
3628 break;
3629 }
3630
3631 default:
3632 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3633 }
3634
3635 return 0;
3636 }
3637
3638 static HWND
3639 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3640 {
3641 HWND hwnd = infoPtr->hwnd;
3642 HWND hwndEdit;
3643 SIZE sz;
3644 TREEVIEW_ITEM *editItem = hItem;
3645 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3646 HDC hdc;
3647 HFONT hOldFont=0;
3648 TEXTMETRICW textMetric;
3649 static const WCHAR EditW[] = {'E','d','i','t',0};
3650
3651 TRACE("%p %p\n", hwnd, hItem);
3652 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3653 return NULL;
3654
3655 if (infoPtr->hwndEdit)
3656 return infoPtr->hwndEdit;
3657
3658 infoPtr->bLabelChanged = FALSE;
3659
3660 /* Make sure that edit item is selected */
3661 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3662 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3663
3664 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3665
3666 hdc = GetDC(hwnd);
3667 /* Select the font to get appropriate metric dimensions */
3668 if (infoPtr->hFont != 0)
3669 {
3670 hOldFont = SelectObject(hdc, infoPtr->hFont);
3671 }
3672
3673 /* Get string length in pixels */
3674 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3675 &sz);
3676
3677 /* Add Extra spacing for the next character */
3678 GetTextMetricsW(hdc, &textMetric);
3679 sz.cx += (textMetric.tmMaxCharWidth * 2);
3680
3681 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3682 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3683
3684 if (infoPtr->hFont != 0)
3685 {
3686 SelectObject(hdc, hOldFont);
3687 }
3688
3689 ReleaseDC(hwnd, hdc);
3690 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3691 EditW,
3692 0,
3693 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3694 WS_CLIPSIBLINGS | ES_WANTRETURN |
3695 ES_LEFT, editItem->textOffset - 2,
3696 editItem->rect.top - 1, sz.cx + 3,
3697 editItem->rect.bottom -
3698 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3699 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3700
3701 infoPtr->hwndEdit = hwndEdit;
3702
3703 /* Get a 2D border. */
3704 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3705 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3706 SetWindowLongW(hwndEdit, GWL_STYLE,
3707 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3708
3709 SendMessageW(hwndEdit, WM_SETFONT,
3710 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3711
3712 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3713 (DWORD_PTR)
3714 TREEVIEW_Edit_SubclassProc);
3715
3716 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3717 {
3718 DestroyWindow(hwndEdit);
3719 infoPtr->hwndEdit = 0;
3720 return NULL;
3721 }
3722
3723 infoPtr->selectedItem = hItem;
3724 SetWindowTextW(hwndEdit, editItem->pszText);
3725 SetFocus(hwndEdit);
3726 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3727 ShowWindow(hwndEdit, SW_SHOW);
3728
3729 return hwndEdit;
3730 }
3731
3732
3733 static LRESULT
3734 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3735 {
3736 HWND hwnd = infoPtr->hwnd;
3737 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3738 NMTVDISPINFOW tvdi;
3739 BOOL bCommit;
3740 WCHAR tmpText[1024] = { '\0' };
3741 WCHAR *newText = tmpText;
3742 int iLength = 0;
3743
3744 if (!infoPtr->hwndEdit)
3745 return FALSE;
3746
3747 tvdi.hdr.hwndFrom = hwnd;
3748 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3749 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3750 tvdi.item.mask = 0;
3751 tvdi.item.hItem = editedItem;
3752 tvdi.item.state = editedItem->state;
3753 tvdi.item.lParam = editedItem->lParam;
3754
3755 if (!bCancel)
3756 {
3757 if (!infoPtr->bNtfUnicode)
3758 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3759 else
3760 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3761
3762 if (iLength >= 1023)
3763 {
3764 ERR("Insufficient space to retrieve new item label\n");
3765 }
3766
3767 tvdi.item.mask = TVIF_TEXT;
3768 tvdi.item.pszText = tmpText;
3769 tvdi.item.cchTextMax = iLength + 1;
3770 }
3771 else
3772 {
3773 tvdi.item.pszText = NULL;
3774 tvdi.item.cchTextMax = 0;
3775 }
3776
3777 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
3778
3779 if (!bCancel && bCommit) /* Apply the changes */
3780 {
3781 if (!infoPtr->bNtfUnicode)
3782 {
3783 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3784 newText = Alloc(len * sizeof(WCHAR));
3785 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3786 iLength = len - 1;
3787 }
3788
3789 if (strcmpW(newText, editedItem->pszText) != 0)
3790 {
3791 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
3792 if (ptr == NULL)
3793 {
3794 ERR("OutOfMemory, cannot allocate space for label\n");
3795 if(newText != tmpText) Free(newText);
3796 DestroyWindow(infoPtr->hwndEdit);
3797 infoPtr->hwndEdit = 0;
3798 return FALSE;
3799 }
3800 else
3801 {
3802 editedItem->pszText = ptr;
3803 editedItem->cchTextMax = iLength + 1;
3804 strcpyW(editedItem->pszText, newText);
3805 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
3806 }
3807 }
3808 if(newText != tmpText) Free(newText);
3809 }
3810
3811 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3812 DestroyWindow(infoPtr->hwndEdit);
3813 infoPtr->hwndEdit = 0;
3814 return TRUE;
3815 }
3816
3817 static LRESULT
3818 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3819 {
3820 if (wParam != TV_EDIT_TIMER)
3821 {
3822 ERR("got unknown timer\n");
3823 return 1;
3824 }
3825
3826 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3827 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3828
3829 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3830
3831 return 0;
3832 }
3833
3834
3835 /* Mouse Tracking/Drag **************************************************/
3836
3837 /***************************************************************************
3838 * This is quite unusual piece of code, but that's how it's implemented in
3839 * Windows.
3840 */
3841 static LRESULT
3842 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
3843 {
3844 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3845 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3846 RECT r;
3847 MSG msg;
3848
3849 r.top = pt.y - cyDrag;
3850 r.left = pt.x - cxDrag;
3851 r.bottom = pt.y + cyDrag;
3852 r.right = pt.x + cxDrag;
3853
3854 SetCapture(infoPtr->hwnd);
3855
3856 while (1)
3857 {
3858 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3859 {
3860 if (msg.message == WM_MOUSEMOVE)
3861 {
3862 pt.x = (short)LOWORD(msg.lParam);
3863 pt.y = (short)HIWORD(msg.lParam);
3864 if (PtInRect(&r, pt))
3865 continue;
3866 else
3867 {
3868 ReleaseCapture();
3869 return 1;
3870 }
3871 }
3872 else if (msg.message >= WM_LBUTTONDOWN &&
3873 msg.message <= WM_RBUTTONDBLCLK)
3874 {
3875 if (msg.message == WM_RBUTTONUP)
3876 TREEVIEW_RButtonUp(infoPtr, &pt);
3877 break;
3878 }
3879
3880 DispatchMessageW(&msg);
3881 }
3882
3883 if (GetCapture() != infoPtr->hwnd)
3884 return 0;
3885 }
3886
3887 ReleaseCapture();
3888 return 0;
3889 }
3890
3891
3892 static LRESULT
3893 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3894 {
3895 TREEVIEW_ITEM *wineItem;
3896 TVHITTESTINFO hit;
3897
3898 TRACE("\n");
3899 SetFocus(infoPtr->hwnd);
3900
3901 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3902 {
3903 /* If there is pending 'edit label' event - kill it now */
3904 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3905 }
3906
3907 hit.pt.x = (short)LOWORD(lParam);
3908 hit.pt.y = (short)HIWORD(lParam);
3909
3910 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3911 if (!wineItem)
3912 return 0;
3913 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3914
3915 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3916 { /* FIXME! */
3917 switch (hit.flags)
3918 {
3919 case TVHT_ONITEMRIGHT:
3920 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3921 break;
3922
3923 case TVHT_ONITEMINDENT:
3924 if (!(infoPtr->dwStyle & TVS_HASLINES))
3925 {
3926 break;
3927 }
3928 else
3929 {
3930 int level = hit.pt.x / infoPtr->uIndent;
3931 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3932
3933 while (wineItem->iLevel > level)
3934 {
3935 wineItem = wineItem->parent;
3936 }
3937
3938 /* fall through */
3939 }
3940
3941 case TVHT_ONITEMLABEL:
3942 case TVHT_ONITEMICON:
3943 case TVHT_ONITEMBUTTON:
3944 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3945 break;
3946
3947 case TVHT_ONITEMSTATEICON:
3948 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3949 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3950 else
3951 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3952 break;
3953 }
3954 }
3955 return TRUE;
3956 }
3957
3958
3959 static LRESULT
3960 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3961 {
3962 HWND hwnd = infoPtr->hwnd;
3963 TVHITTESTINFO ht;
3964 BOOL bTrack, bDoLabelEdit;
3965 HTREEITEM tempItem;
3966
3967 /* If Edit control is active - kill it and return.
3968 * The best way to do it is to set focus to itself.
3969 * Edit control subclassed procedure will automatically call
3970 * EndEditLabelNow.
3971 */
3972 if (infoPtr->hwndEdit)
3973 {
3974 SetFocus(hwnd);
3975 return 0;
3976 }
3977
3978 ht.pt.x = (short)LOWORD(lParam);
3979 ht.pt.y = (short)HIWORD(lParam);
3980
3981 TREEVIEW_HitTest(infoPtr, &ht);
3982 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3983
3984 /* update focusedItem and redraw both items */
3985 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3986 {
3987 infoPtr->focusedItem = ht.hItem;
3988 InvalidateRect(hwnd, &ht.hItem->rect, TRUE);
3989
3990 if(infoPtr->selectedItem)
3991 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3992 }
3993
3994 bTrack = (ht.flags & TVHT_ONITEM)
3995 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3996
3997 /*
3998 * If the style allows editing and the node is already selected
3999 * and the click occurred on the item label...
4000 */
4001 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4002 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4003
4004 /* Send NM_CLICK right away */
4005 if (!bTrack)
4006 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4007 goto setfocus;
4008
4009 if (ht.flags & TVHT_ONITEMBUTTON)
4010 {
4011 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4012 goto setfocus;
4013 }
4014 else if (bTrack)
4015 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4016 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4017 {
4018 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4019 infoPtr->dropItem = ht.hItem;
4020
4021 /* clean up focusedItem as we dragged and won't select this item */
4022 if(infoPtr->focusedItem)
4023 {
4024 /* refresh the item that was focused */
4025 tempItem = infoPtr->focusedItem;
4026 infoPtr->focusedItem = 0;
4027 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4028
4029 /* refresh the selected item to return the filled background */
4030 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4031 }
4032
4033 return 0;
4034 }
4035 }
4036
4037 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4038 goto setfocus;
4039
4040 if (bDoLabelEdit)
4041 {
4042 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4043 KillTimer(hwnd, TV_EDIT_TIMER);
4044
4045 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4046 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4047 }
4048 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4049 {
4050 /*
4051 * if we are TVS_SINGLEEXPAND then we want this single click to
4052 * do a bunch of things.
4053 */
4054 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4055 (infoPtr->hwndEdit == 0))
4056 {
4057 TREEVIEW_ITEM *SelItem;
4058
4059 /*
4060 * Send the notification
4061 */
4062 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4063
4064 /*
4065 * Close the previous selection all the way to the root
4066 * as long as the new selection is not a child
4067 */
4068 if((infoPtr->selectedItem)
4069 && (infoPtr->selectedItem != ht.hItem))
4070 {
4071 BOOL closeit = TRUE;
4072 SelItem = ht.hItem;
4073
4074 /* determine if the hitItem is a child of the currently selected item */
4075 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4076 {
4077 closeit = (SelItem != infoPtr->selectedItem);
4078 SelItem = SelItem->parent;
4079 }
4080
4081 if(closeit)
4082 {
4083 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4084 SelItem = infoPtr->selectedItem;
4085
4086 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4087 {
4088 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4089 SelItem = SelItem->parent;
4090 }
4091 }
4092 }
4093
4094 /*
4095 * Expand the current item
4096 */
4097 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4098 }
4099
4100 /* Select the current item */
4101 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4102 }
4103 else if (ht.flags & TVHT_ONITEMSTATEICON)
4104 {
4105 /* TVS_CHECKBOXES requires us to toggle the current state */
4106 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4107 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4108 }
4109
4110 setfocus:
4111 SetFocus(hwnd);
4112 return 0;
4113 }
4114
4115
4116 static LRESULT
4117 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4118 {
4119 TVHITTESTINFO ht;
4120
4121 if (infoPtr->hwndEdit)
4122 {
4123 SetFocus(infoPtr->hwnd);
4124 return 0;
4125 }
4126
4127 ht.pt.x = (short)LOWORD(lParam);
4128 ht.pt.y = (short)HIWORD(lParam);
4129
4130 TREEVIEW_HitTest(infoPtr, &ht);
4131
4132 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4133 {
4134 if (ht.hItem)
4135 {
4136 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4137 infoPtr->dropItem = ht.hItem;
4138 }
4139 }
4140 else
4141 {
4142 SetFocus(infoPtr->hwnd);
4143 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4144 }
4145
4146 return 0;
4147 }
4148
4149 static LRESULT
4150 TREEVIEW_RButtonUp(const TREEVIEW_INFO *infoPtr, const POINT *pPt)
4151 {
4152 TVHITTESTINFO ht;
4153
4154 ht.pt = *pPt;
4155
4156 TREEVIEW_HitTest(infoPtr, &ht);
4157
4158 if (ht.hItem)
4159 {
4160 /* Change to screen coordinate for WM_CONTEXTMENU */
4161 ClientToScreen(infoPtr->hwnd, &ht.pt);
4162
4163 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4164 SendMessageW(infoPtr->hwnd, WM_CONTEXTMENU,
4165 (WPARAM)infoPtr->hwnd, MAKELPARAM(ht.pt.x, ht.pt.y));
4166 }
4167 return 0;
4168 }
4169
4170
4171 static LRESULT
4172 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4173 {
4174 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4175 INT cx, cy;
4176 HDC hdc, htopdc;
4177 HWND hwtop;
4178 HBITMAP hbmp, hOldbmp;
4179 SIZE size;
4180 RECT rc;
4181 HFONT hOldFont;
4182
4183 TRACE("\n");
4184
4185 if (!(infoPtr->himlNormal))
4186 return 0;
4187
4188 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4189 return 0;
4190
4191 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4192
4193 hwtop = GetDesktopWindow();
4194 htopdc = GetDC(hwtop);
4195 hdc = CreateCompatibleDC(htopdc);
4196
4197 hOldFont = SelectObject(hdc, infoPtr->hFont);
4198 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4199 &size);
4200 TRACE("%d %d %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4201 strlenW(dragItem->pszText));
4202 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4203 hOldbmp = SelectObject(hdc, hbmp);
4204
4205 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4206 size.cx += cx;
4207 if (cy > size.cy)
4208 size.cy = cy;
4209
4210 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4211 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4212 ILD_NORMAL);
4213
4214 /*
4215 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4216 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4217 */
4218
4219 /* draw item text */
4220
4221 SetRect(&rc, cx, 0, size.cx, size.cy);
4222 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4223 DT_LEFT);
4224 SelectObject(hdc, hOldFont);
4225 SelectObject(hdc, hOldbmp);
4226
4227 ImageList_Add(infoPtr->dragList, hbmp, 0);
4228
4229 DeleteDC(hdc);
4230 DeleteObject(hbmp);
4231 ReleaseDC(hwtop, htopdc);
4232
4233 return (LRESULT)infoPtr->dragList;
4234 }
4235
4236 /* Selection ************************************************************/
4237
4238 static LRESULT
4239 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4240 INT cause)
4241 {
4242 TREEVIEW_ITEM *prevSelect;
4243 RECT rcFocused;
4244
4245 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4246
4247 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4248 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4249 newSelect ? newSelect->state : 0);
4250
4251 /* reset and redraw focusedItem if focusedItem was set so we don't */
4252 /* have to worry about the previously focused item when we set a new one */
4253 if(infoPtr->focusedItem)
4254 {
4255 rcFocused = (infoPtr->focusedItem)->rect;
4256 infoPtr->focusedItem = 0;
4257 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4258 }
4259
4260 switch (action)
4261 {
4262 case TVGN_CARET:
4263 prevSelect = infoPtr->selectedItem;
4264
4265 if (prevSelect == newSelect) {
4266 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4267 break;
4268 }
4269
4270 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4271 TVN_SELCHANGINGW,
4272 cause,
4273 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4274 prevSelect,
4275 newSelect))
4276 return FALSE;
4277
4278 if (prevSelect)
4279 prevSelect->state &= ~TVIS_SELECTED;
4280 if (newSelect)
4281 newSelect->state |= TVIS_SELECTED;
4282
4283 infoPtr->selectedItem = newSelect;
4284
4285 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4286
4287 if (prevSelect)
4288 TREEVIEW_Invalidate(infoPtr, prevSelect);
4289 if (newSelect)
4290 TREEVIEW_Invalidate(infoPtr, newSelect);
4291
4292 TREEVIEW_SendTreeviewNotify(infoPtr,
4293 TVN_SELCHANGEDW,
4294 cause,
4295 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4296 prevSelect,
4297 newSelect);
4298 break;
4299
4300 case TVGN_DROPHILITE:
4301 prevSelect = infoPtr->dropItem;
4302
4303 if (prevSelect)
4304 prevSelect->state &= ~TVIS_DROPHILITED;
4305
4306 infoPtr->dropItem = newSelect;
4307
4308 if (newSelect)
4309 newSelect->state |= TVIS_DROPHILITED;
4310
4311 TREEVIEW_Invalidate(infoPtr, prevSelect);
4312 TREEVIEW_Invalidate(infoPtr, newSelect);
4313 break;
4314
4315 case TVGN_FIRSTVISIBLE:
4316 if (newSelect != NULL)
4317 {
4318 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4319 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4320 TREEVIEW_Invalidate(infoPtr, NULL);
4321 }
4322 break;
4323 }
4324
4325 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4326 return TRUE;
4327 }
4328
4329 /* FIXME: handle NM_KILLFOCUS etc */
4330 static LRESULT
4331 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4332 {
4333 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4334 return FALSE;
4335
4336 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4337
4338 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4339 return FALSE;
4340
4341 return TRUE;
4342 }
4343
4344 /*************************************************************************
4345 * TREEVIEW_ProcessLetterKeys
4346 *
4347 * Processes keyboard messages generated by pressing the letter keys
4348 * on the keyboard.
4349 * What this does is perform a case insensitive search from the
4350 * current position with the following quirks:
4351 * - If two chars or more are pressed in quick succession we search
4352 * for the corresponding string (e.g. 'abc').
4353 * - If there is a delay we wipe away the current search string and
4354 * restart with just that char.
4355 * - If the user keeps pressing the same character, whether slowly or
4356 * fast, so that the search string is entirely composed of this
4357 * character ('aaaaa' for instance), then we search for first item
4358 * that starting with that character.
4359 * - If the user types the above character in quick succession, then
4360 * we must also search for the corresponding string ('aaaaa'), and
4361 * go to that string if there is a match.
4362 *
4363 * RETURNS
4364 *
4365 * Zero.
4366 *
4367 * BUGS
4368 *
4369 * - The current implementation has a list of characters it will
4370 * accept and it ignores everything else. In particular it will
4371 * ignore accentuated characters which seems to match what
4372 * Windows does. But I'm not sure it makes sense to follow
4373 * Windows there.
4374 * - We don't sound a beep when the search fails.
4375 * - The search should start from the focused item, not from the selected
4376 * item. One reason for this is to allow for multiple selections in trees.
4377 * But currently infoPtr->focusedItem does not seem very usable.
4378 *
4379 * SEE ALSO
4380 *
4381 * TREEVIEW_ProcessLetterKeys
4382 */
4383 static INT TREEVIEW_ProcessLetterKeys(
4384 HWND hwnd, /* handle to the window */
4385 WPARAM charCode, /* the character code, the actual character */
4386 LPARAM keyData /* key data */
4387 )
4388 {
4389 TREEVIEW_INFO *infoPtr;
4390 HTREEITEM nItem;
4391 HTREEITEM endidx,idx;
4392 TVITEMEXW item;
4393 WCHAR buffer[MAX_PATH];
4394 DWORD timestamp,elapsed;
4395
4396 /* simple parameter checking */
4397 if (!hwnd || !charCode || !keyData)
4398 return 0;
4399
4400 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4401 if (!infoPtr)
4402 return 0;
4403
4404 /* only allow the valid WM_CHARs through */
4405 if (!isalnum(charCode) &&
4406 charCode != '.' && charCode != '`' && charCode != '!' &&
4407 charCode != '@' && charCode != '#' && charCode != '$' &&
4408 charCode != '%' && charCode != '^' && charCode != '&' &&
4409 charCode != '*' && charCode != '(' && charCode != ')' &&
4410 charCode != '-' && charCode != '_' && charCode != '+' &&
4411 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4412 charCode != '}' && charCode != '[' && charCode != '{' &&
4413 charCode != '/' && charCode != '?' && charCode != '>' &&
4414 charCode != '<' && charCode != ',' && charCode != '~')
4415 return 0;
4416
4417 /* compute how much time elapsed since last keypress */
4418 timestamp = GetTickCount();
4419 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4420 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4421 } else {
4422 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4423 }
4424
4425 /* update the search parameters */
4426 infoPtr->lastKeyPressTimestamp=timestamp;
4427 if (elapsed < KEY_DELAY) {
4428 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4429 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4430 }
4431 if (infoPtr->charCode != charCode) {
4432 infoPtr->charCode=charCode=0;
4433 }
4434 } else {
4435 infoPtr->charCode=charCode;
4436 infoPtr->szSearchParam[0]=charCode;
4437 infoPtr->nSearchParamLength=1;
4438 /* Redundant with the 1 char string */
4439 charCode=0;
4440 }
4441
4442 /* and search from the current position */
4443 nItem=NULL;
4444 if (infoPtr->selectedItem != NULL) {
4445 endidx=infoPtr->selectedItem;
4446 /* if looking for single character match,
4447 * then we must always move forward
4448 */
4449 if (infoPtr->nSearchParamLength == 1)
4450 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4451 else
4452 idx=endidx;
4453 } else {
4454 endidx=NULL;
4455 idx=infoPtr->root->firstChild;
4456 }
4457 do {
4458 /* At the end point, sort out wrapping */
4459 if (idx == NULL) {
4460
4461 /* If endidx is null, stop at the last item (ie top to bottom) */
4462 if (endidx == NULL)
4463 break;
4464
4465 /* Otherwise, start again at the very beginning */
4466 idx=infoPtr->root->firstChild;
4467
4468 /* But if we are stopping on the first child, end now! */
4469 if (idx == endidx) break;
4470 }
4471
4472 /* get item */
4473 ZeroMemory(&item, sizeof(item));
4474 item.mask = TVIF_TEXT;
4475 item.hItem = idx;
4476 item.pszText = buffer;
4477 item.cchTextMax = sizeof(buffer);
4478 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4479
4480 /* check for a match */
4481 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4482 nItem=idx;
4483 break;
4484 } else if ( (charCode != 0) && (nItem == NULL) &&
4485 (nItem != infoPtr->selectedItem) &&
4486 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4487 /* This would work but we must keep looking for a longer match */
4488 nItem=idx;
4489 }
4490 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4491 } while (idx != endidx);
4492
4493 if (nItem != NULL) {
4494 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4495 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4496 }
4497 }
4498
4499 return 0;
4500 }
4501
4502 /* Scrolling ************************************************************/
4503
4504 static LRESULT
4505 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4506 {
4507 int viscount;
4508 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4509 HTREEITEM newFirstVisible = NULL;
4510 int visible_pos = -1;
4511
4512 if (!TREEVIEW_ValidItem(infoPtr, item))
4513 return FALSE;
4514
4515 if (!ISVISIBLE(item))
4516 {
4517 /* Expand parents as necessary. */
4518 HTREEITEM parent;
4519
4520 /* see if we are trying to ensure that root is visible */
4521 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4522 parent = item->parent;
4523 else
4524 parent = item; /* this item is the topmost item */
4525
4526 while (parent != infoPtr->root)
4527 {
4528 if (!(parent->state & TVIS_EXPANDED))
4529 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4530
4531 parent = parent->parent;
4532 }
4533 }
4534
4535 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4536
4537 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4538 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4539
4540 if (hasFirstVisible)
4541 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4542
4543 if (visible_pos < 0)
4544 {
4545 /* item is before the start of the list: put it at the top. */
4546 newFirstVisible = item;
4547 }
4548 else if (visible_pos >= viscount
4549 /* Sometimes, before we are displayed, GVC is 0, causing us to
4550 * spuriously scroll up. */
4551 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4552 {
4553 /* item is past the end of the list. */
4554 int scroll = visible_pos - viscount;
4555
4556 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4557 scroll + 1);
4558 }
4559
4560 if (bHScroll)
4561 {
4562 /* Scroll window so item's text is visible as much as possible */
4563 /* Calculation of amount of extra space is taken from EditLabel code */
4564 INT pos, x;
4565 TEXTMETRICW textMetric;
4566 HDC hdc = GetWindowDC(infoPtr->hwnd);
4567
4568 x = item->textWidth;
4569
4570 GetTextMetricsW(hdc, &textMetric);
4571 ReleaseDC(infoPtr->hwnd, hdc);
4572
4573 x += (textMetric.tmMaxCharWidth * 2);
4574 x = max(x, textMetric.tmMaxCharWidth * 3);
4575
4576 if (item->textOffset < 0)
4577 pos = item->textOffset;
4578 else if (item->textOffset + x > infoPtr->clientWidth)
4579 {
4580 if (x > infoPtr->clientWidth)
4581 pos = item->textOffset;
4582 else
4583 pos = item->textOffset + x - infoPtr->clientWidth;
4584 }
4585 else
4586 pos = 0;
4587
4588 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4589 }
4590
4591 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4592 {
4593 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4594
4595 return TRUE;
4596 }
4597
4598 return FALSE;
4599 }
4600
4601 static VOID
4602 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4603 TREEVIEW_ITEM *newFirstVisible,
4604 BOOL bUpdateScrollPos)
4605 {
4606 int gap_size;
4607
4608 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4609
4610 if (newFirstVisible != NULL)
4611 {
4612 /* Prevent an empty gap from appearing at the bottom... */
4613 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4614 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4615
4616 if (gap_size > 0)
4617 {
4618 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4619 -gap_size);
4620
4621 /* ... unless we just don't have enough items. */
4622 if (newFirstVisible == NULL)
4623 newFirstVisible = infoPtr->root->firstChild;
4624 }
4625 }
4626
4627 if (infoPtr->firstVisible != newFirstVisible)
4628 {
4629 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4630 {
4631 infoPtr->firstVisible = newFirstVisible;
4632 TREEVIEW_Invalidate(infoPtr, NULL);
4633 }
4634 else
4635 {
4636 TREEVIEW_ITEM *item;
4637 int scroll = infoPtr->uItemHeight *
4638 (infoPtr->firstVisible->visibleOrder
4639 - newFirstVisible->visibleOrder);
4640
4641 infoPtr->firstVisible = newFirstVisible;
4642
4643 for (item = infoPtr->root->firstChild; item != NULL;
4644 item = TREEVIEW_GetNextListItem(infoPtr, item))
4645 {
4646 item->rect.top += scroll;
4647 item->rect.bottom += scroll;
4648 }
4649
4650 if (bUpdateScrollPos)
4651 SetScrollPos(infoPtr->hwnd, SB_VERT,
4652 newFirstVisible->visibleOrder, TRUE);
4653
4654 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4655 }
4656 }
4657 }
4658
4659 /************************************************************************
4660 * VScroll is always in units of visible items. i.e. we always have a
4661 * visible item aligned to the top of the control. (Unless we have no
4662 * items at all.)
4663 */
4664 static LRESULT
4665 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4666 {
4667 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4668 TREEVIEW_ITEM *newFirstVisible = NULL;
4669
4670 int nScrollCode = LOWORD(wParam);
4671
4672 TRACE("wp %lx\n", wParam);
4673
4674 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4675 return 0;
4676
4677 if (!oldFirstVisible)
4678 {
4679 assert(infoPtr->root->firstChild == NULL);
4680 return 0;
4681 }
4682
4683 switch (nScrollCode)
4684 {
4685 case SB_TOP:
4686 newFirstVisible = infoPtr->root->firstChild;
4687 break;
4688
4689 case SB_BOTTOM:
4690 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4691 break;
4692
4693 case SB_LINEUP:
4694 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4695 break;
4696
4697 case SB_LINEDOWN:
4698 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4699 break;
4700
4701 case SB_PAGEUP:
4702 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4703 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4704 break;
4705
4706 case SB_PAGEDOWN:
4707 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4708 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4709 break;
4710
4711 case SB_THUMBTRACK:
4712 case SB_THUMBPOSITION:
4713 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4714 infoPtr->root->firstChild,
4715 (LONG)(SHORT)HIWORD(wParam));
4716 break;
4717
4718 case SB_ENDSCROLL:
4719 return 0;
4720 }
4721
4722 if (newFirstVisible != NULL)
4723 {
4724 if (newFirstVisible != oldFirstVisible)
4725 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4726 nScrollCode != SB_THUMBTRACK);
4727 else if (nScrollCode == SB_THUMBPOSITION)
4728 SetScrollPos(infoPtr->hwnd, SB_VERT,
4729 newFirstVisible->visibleOrder, TRUE);
4730 }
4731
4732 return 0;
4733 }
4734
4735 static LRESULT
4736 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4737 {
4738 int maxWidth;
4739 int scrollX = infoPtr->scrollX;
4740 int nScrollCode = LOWORD(wParam);
4741
4742 TRACE("wp %lx\n", wParam);
4743
4744 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4745 return FALSE;
4746
4747 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4748 /* shall never occur */
4749 if (maxWidth <= 0)
4750 {
4751 scrollX = 0;
4752 goto scroll;
4753 }
4754
4755 switch (nScrollCode)
4756 {
4757 case SB_LINELEFT:
4758 scrollX -= infoPtr->uItemHeight;
4759 break;
4760 case SB_LINERIGHT:
4761 scrollX += infoPtr->uItemHeight;
4762 break;
4763 case SB_PAGELEFT:
4764 scrollX -= infoPtr->clientWidth;
4765 break;
4766 case SB_PAGERIGHT:
4767 scrollX += infoPtr->clientWidth;
4768 break;
4769
4770 case SB_THUMBTRACK:
4771 case SB_THUMBPOSITION:
4772 scrollX = (int)(SHORT)HIWORD(wParam);
4773 break;
4774
4775 case SB_ENDSCROLL:
4776 return 0;
4777 }
4778
4779 if (scrollX > maxWidth)
4780 scrollX = maxWidth;
4781 else if (scrollX < 0)
4782 scrollX = 0;
4783
4784 scroll:
4785 if (scrollX != infoPtr->scrollX)
4786 {
4787 TREEVIEW_ITEM *item;
4788 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4789
4790 for (item = infoPtr->root->firstChild; item != NULL;
4791 item = TREEVIEW_GetNextListItem(infoPtr, item))
4792 {
4793 item->linesOffset += scroll_pixels;
4794 item->stateOffset += scroll_pixels;
4795 item->imageOffset += scroll_pixels;
4796 item->textOffset += scroll_pixels;
4797 }
4798
4799 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4800 infoPtr->scrollX = scrollX;
4801 UpdateWindow(infoPtr->hwnd);
4802 }
4803
4804 if (nScrollCode != SB_THUMBTRACK)
4805 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4806
4807 return 0;
4808 }
4809
4810 static LRESULT
4811 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4812 {
4813 short gcWheelDelta;
4814 UINT pulScrollLines = 3;
4815
4816 if (infoPtr->firstVisible == NULL)
4817 return TRUE;
4818
4819 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4820
4821 gcWheelDelta = -(short)HIWORD(wParam);
4822 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4823
4824 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4825 {
4826 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4827 int maxDy = infoPtr->maxVisibleOrder;
4828
4829 if (newDy > maxDy)
4830 newDy = maxDy;
4831
4832 if (newDy < 0)
4833 newDy = 0;
4834
4835 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4836 }
4837 return TRUE;
4838 }
4839
4840 /* Create/Destroy *******************************************************/
4841
4842 static void
4843 initialize_checkboxes(TREEVIEW_INFO *infoPtr)
4844 {
4845 RECT rc;
4846 HBITMAP hbm, hbmOld;
4847 HDC hdc, hdcScreen;
4848 int nIndex;
4849
4850 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4851
4852 hdcScreen = GetDC(0);
4853
4854 hdc = CreateCompatibleDC(hdcScreen);
4855 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4856 hbmOld = SelectObject(hdc, hbm);
4857
4858 SetRect(&rc, 0, 0, 48, 16);
4859 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4860
4861 SetRect(&rc, 18, 2, 30, 14);
4862 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4863 DFCS_BUTTONCHECK|DFCS_FLAT);
4864
4865 SetRect(&rc, 34, 2, 46, 14);
4866 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4867 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4868
4869 SelectObject(hdc, hbmOld);
4870 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4871 GetSysColor(COLOR_WINDOW));
4872 TRACE("checkbox index %d\n", nIndex);
4873
4874 DeleteObject(hbm);
4875 DeleteDC(hdc);
4876 ReleaseDC(0, hdcScreen);
4877
4878 infoPtr->stateImageWidth = 16;
4879 infoPtr->stateImageHeight = 16;
4880 }
4881
4882 static LRESULT
4883 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4884 {
4885 RECT rcClient;
4886 TREEVIEW_INFO *infoPtr;
4887 LOGFONTW lf;
4888
4889 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4890
4891 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4892
4893 if (infoPtr == NULL)
4894 {
4895 ERR("could not allocate info memory!\n");
4896 return 0;
4897 }
4898
4899 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4900
4901 infoPtr->hwnd = hwnd;
4902 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4903 infoPtr->Timer = 0;
4904 infoPtr->uNumItems = 0;
4905 infoPtr->cdmode = 0;
4906 infoPtr->uScrollTime = 300; /* milliseconds */
4907 infoPtr->bRedraw = TRUE;
4908
4909 GetClientRect(hwnd, &rcClient);
4910
4911 /* No scroll bars yet. */
4912 infoPtr->clientWidth = rcClient.right;
4913 infoPtr->clientHeight = rcClient.bottom;
4914 infoPtr->uInternalStatus = 0;
4915
4916 infoPtr->treeWidth = 0;
4917 infoPtr->treeHeight = 0;
4918
4919 infoPtr->uIndent = MINIMUM_INDENT;
4920 infoPtr->selectedItem = 0;
4921 infoPtr->focusedItem = 0;
4922 infoPtr->hotItem = 0;
4923 infoPtr->firstVisible = 0;
4924 infoPtr->maxVisibleOrder = 0;
4925 infoPtr->dropItem = 0;
4926 infoPtr->insertMarkItem = 0;
4927 infoPtr->insertBeforeorAfter = 0;
4928 /* dragList */
4929
4930 infoPtr->scrollX = 0;
4931
4932 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4933 infoPtr->clrText = -1; /* use system color */
4934 infoPtr->clrLine = RGB(128, 128, 128);
4935 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4936
4937 /* hwndToolTip */
4938
4939 infoPtr->hwndEdit = 0;
4940 infoPtr->wpEditOrig = NULL;
4941 infoPtr->bIgnoreEditKillFocus = FALSE;
4942 infoPtr->bLabelChanged = FALSE;
4943
4944 infoPtr->himlNormal = NULL;
4945 infoPtr->himlState = NULL;
4946 infoPtr->normalImageWidth = 0;
4947 infoPtr->normalImageHeight = 0;
4948 infoPtr->stateImageWidth = 0;
4949 infoPtr->stateImageHeight = 0;
4950
4951 infoPtr->items = DPA_Create(16);
4952
4953 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4954 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4955 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4956 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4957 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4958
4959 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4960
4961 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4962 infoPtr->root->state = TVIS_EXPANDED;
4963 infoPtr->root->iLevel = -1;
4964 infoPtr->root->visibleOrder = -1;
4965
4966 infoPtr->hwndNotify = lpcs->hwndParent;
4967 #if 0
4968 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4969 #endif
4970
4971 infoPtr->hwndToolTip = 0;
4972
4973 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4974
4975 /* Determine what type of notify should be issued */
4976 /* sets infoPtr->bNtfUnicode */
4977 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4978
4979 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4980 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
4981 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
4982 hwnd, 0, 0, 0);
4983
4984 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4985 initialize_checkboxes(infoPtr);
4986
4987 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4988 ShowScrollBar(hwnd, SB_VERT, FALSE);
4989 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4990
4991 OpenThemeData (hwnd, themeClass);
4992
4993 return 0;
4994 }
4995
4996
4997 static LRESULT
4998 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4999 {
5000 TRACE("\n");
5001
5002 TREEVIEW_RemoveTree(infoPtr);
5003
5004 /* tool tip is automatically destroyed: we are its owner */
5005
5006 /* Restore original wndproc */
5007 if (infoPtr->hwndEdit)
5008 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5009 (DWORD_PTR)infoPtr->wpEditOrig);
5010
5011 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5012
5013 /* Deassociate treeview from the window before doing anything drastic. */
5014 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
5015
5016
5017 DeleteObject(infoPtr->hDefaultFont);
5018 DeleteObject(infoPtr->hBoldFont);
5019 DeleteObject(infoPtr->hUnderlineFont);
5020 Free(infoPtr);
5021
5022 return 0;
5023 }
5024
5025 /* Miscellaneous Messages ***********************************************/
5026
5027 static LRESULT
5028 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5029 {
5030 static const struct
5031 {
5032 unsigned char code;
5033 }
5034 scroll[] =
5035 {
5036 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5037 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5038 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5039 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5040 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5041 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5042 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5043 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5044 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5045 #undef SCROLL_ENTRY
5046 };
5047
5048 if (key >= VK_PRIOR && key <= VK_DOWN)
5049 {
5050 unsigned char code = scroll[key - VK_PRIOR].code;
5051
5052 (((code & (1 << 7)) == (SB_HORZ << 7))
5053 ? TREEVIEW_HScroll
5054 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5055 }
5056
5057 return 0;
5058 }
5059
5060 /************************************************************************
5061 * TREEVIEW_KeyDown
5062 *
5063 * VK_UP Move selection to the previous non-hidden item.
5064 * VK_DOWN Move selection to the next non-hidden item.
5065 * VK_HOME Move selection to the first item.
5066 * VK_END Move selection to the last item.
5067 * VK_LEFT If expanded then collapse, otherwise move to parent.
5068 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5069 * VK_ADD Expand.
5070 * VK_SUBTRACT Collapse.
5071 * VK_MULTIPLY Expand all.
5072 * VK_PRIOR Move up GetVisibleCount items.
5073 * VK_NEXT Move down GetVisibleCount items.
5074 * VK_BACK Move to parent.
5075 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5076 */
5077 static LRESULT
5078 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5079 {
5080 /* If it is non-NULL and different, it will be selected and visible. */
5081 TREEVIEW_ITEM *newSelection = NULL;
5082
5083 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5084
5085 TRACE("%lx\n", wParam);
5086
5087 if (prevItem == NULL)
5088 return FALSE;
5089
5090 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5091 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5092
5093 switch (wParam)
5094 {
5095 case VK_UP:
5096 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5097 if (!newSelection)
5098 newSelection = infoPtr->root->firstChild;
5099 break;
5100
5101 case VK_DOWN:
5102 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5103 break;
5104
5105 case VK_HOME:
5106 newSelection = infoPtr->root->firstChild;
5107 break;
5108
5109 case VK_END:
5110 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5111 break;
5112
5113 case VK_LEFT:
5114 if (prevItem->state & TVIS_EXPANDED)
5115 {
5116 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5117 }
5118 else if (prevItem->parent != infoPtr->root)
5119 {
5120 newSelection = prevItem->parent;
5121 }
5122 break;
5123
5124 case VK_RIGHT:
5125 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5126 {
5127 if (!(prevItem->state & TVIS_EXPANDED))
5128 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5129 else
5130 {
5131 newSelection = prevItem->firstChild;
5132 }
5133 }
5134
5135 break;
5136
5137 case VK_MULTIPLY:
5138 TREEVIEW_ExpandAll(infoPtr, prevItem);
5139 break;
5140
5141 case VK_ADD:
5142 if (!(prevItem->state & TVIS_EXPANDED))
5143 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5144 break;
5145
5146 case VK_SUBTRACT:
5147 if (prevItem->state & TVIS_EXPANDED)
5148 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5149 break;
5150
5151 case VK_PRIOR:
5152 newSelection
5153 = TREEVIEW_GetListItem(infoPtr, prevItem,
5154 -TREEVIEW_GetVisibleCount(infoPtr));
5155 break;
5156
5157 case VK_NEXT:
5158 newSelection
5159 = TREEVIEW_GetListItem(infoPtr, prevItem,
5160 TREEVIEW_GetVisibleCount(infoPtr));
5161 break;
5162
5163 case VK_BACK:
5164 newSelection = prevItem->parent;
5165 if (newSelection == infoPtr->root)
5166 newSelection = NULL;
5167 break;
5168
5169 case VK_SPACE:
5170 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5171 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5172 break;
5173 }
5174
5175 if (newSelection && newSelection != prevItem)
5176 {
5177 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5178 TVC_BYKEYBOARD))
5179 {
5180 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5181 }
5182 }
5183
5184 return FALSE;
5185 }
5186
5187 static LRESULT
5188 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5189 {
5190 if (infoPtr->hotItem)
5191 {
5192 /* remove hot effect from item */
5193 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5194 infoPtr->hotItem = NULL;
5195 }
5196 return 0;
5197 }
5198
5199 static LRESULT
5200 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5201 {
5202 POINT pt;
5203 TRACKMOUSEEVENT trackinfo;
5204 TREEVIEW_ITEM * item;
5205
5206 /* fill in the TRACKMOUSEEVENT struct */
5207 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5208 trackinfo.dwFlags = TME_QUERY;
5209 trackinfo.hwndTrack = infoPtr->hwnd;
5210 trackinfo.dwHoverTime = HOVER_DEFAULT;
5211
5212 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5213 _TrackMouseEvent(&trackinfo);
5214
5215 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5216 if(!(trackinfo.dwFlags & TME_LEAVE))
5217 {
5218 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5219
5220 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5221 /* and can properly deactivate the hot item */
5222 _TrackMouseEvent(&trackinfo);
5223 }
5224
5225 pt.x = (short)LOWORD(lParam);
5226 pt.y = (short)HIWORD(lParam);
5227
5228 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5229
5230 if (item != infoPtr->hotItem)
5231 {
5232 /* redraw old hot item */
5233 if (infoPtr->hotItem)
5234 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5235 infoPtr->hotItem = item;
5236 /* redraw new hot item */
5237 if (infoPtr->hotItem)
5238 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5239 }
5240
5241 return 0;
5242 }
5243
5244 /* Draw themed border */
5245 static BOOL nc_paint (const TREEVIEW_INFO *infoPtr, HRGN region)
5246 {
5247 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5248 HDC dc;
5249 RECT r;
5250 HRGN cliprgn;
5251 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5252 cyEdge = GetSystemMetrics (SM_CYEDGE);
5253
5254 if (!theme) return FALSE;
5255
5256 GetWindowRect(infoPtr->hwnd, &r);
5257
5258 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5259 r.right - cxEdge, r.bottom - cyEdge);
5260 if (region != (HRGN)1)
5261 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5262 OffsetRect(&r, -r.left, -r.top);
5263
5264 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5265 OffsetRect(&r, -r.left, -r.top);
5266
5267 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5268 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5269 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5270 ReleaseDC(infoPtr->hwnd, dc);
5271
5272 /* Call default proc to get the scrollbars etc. painted */
5273 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5274
5275 return TRUE;
5276 }
5277
5278 static LRESULT
5279 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5280 {
5281 LPNMHDR lpnmh = (LPNMHDR)lParam;
5282
5283 if (lpnmh->code == PGN_CALCSIZE) {
5284 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5285
5286 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5287 lppgc->iWidth = infoPtr->treeWidth;
5288 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5289 infoPtr->treeWidth, infoPtr->clientWidth);
5290 }
5291 else {
5292 lppgc->iHeight = infoPtr->treeHeight;
5293 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5294 infoPtr->treeHeight, infoPtr->clientHeight);
5295 }
5296 return 0;
5297 }
5298 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5299 }
5300
5301 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5302 {
5303 INT format;
5304
5305 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5306
5307 if (nCommand != NF_REQUERY) return 0;
5308
5309 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5310 TRACE("format=%d\n", format);
5311
5312 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5313
5314 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5315
5316 return format;
5317 }
5318
5319 static LRESULT
5320 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5321 {
5322 if (wParam == SIZE_RESTORED)
5323 {
5324 infoPtr->clientWidth = (short)LOWORD(lParam);
5325 infoPtr->clientHeight = (short)HIWORD(lParam);
5326
5327 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5328 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5329 TREEVIEW_UpdateScrollBars(infoPtr);
5330 }
5331 else
5332 {
5333 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5334 }
5335
5336 TREEVIEW_Invalidate(infoPtr, NULL);
5337 return 0;
5338 }
5339
5340 static LRESULT
5341 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5342 {
5343 TRACE("(%lx %lx)\n", wParam, lParam);
5344
5345 if (wParam == GWL_STYLE)
5346 {
5347 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5348
5349 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5350 {
5351 if (dwNewStyle & TVS_CHECKBOXES)
5352 {
5353 initialize_checkboxes(infoPtr);
5354 TRACE("checkboxes enabled\n");
5355 }
5356 else
5357 {
5358 FIXME("tried to disable checkboxes\n");
5359 }
5360 }
5361
5362 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5363 {
5364 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5365 {
5366 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5367 TRACE("tooltips enabled\n");
5368 }
5369 else
5370 {
5371 DestroyWindow(infoPtr->hwndToolTip);
5372 infoPtr->hwndToolTip = 0;
5373 TRACE("tooltips disabled\n");
5374 }
5375 }
5376
5377 infoPtr->dwStyle = dwNewStyle;
5378 }
5379
5380 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5381 TREEVIEW_UpdateScrollBars(infoPtr);
5382 TREEVIEW_Invalidate(infoPtr, NULL);
5383
5384 return 0;
5385 }
5386
5387 static LRESULT
5388 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5389 {
5390 POINT pt;
5391 TREEVIEW_ITEM * item;
5392
5393 GetCursorPos(&pt);
5394 ScreenToClient(infoPtr->hwnd, &pt);
5395
5396 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5397
5398 /* FIXME: send NM_SETCURSOR */
5399
5400 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5401 {
5402 SetCursor(infoPtr->hcurHand);
5403 return 0;
5404 }
5405 else
5406 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5407 }
5408
5409 static LRESULT
5410 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5411 {
5412 TRACE("\n");
5413
5414 if (!infoPtr->selectedItem)
5415 {
5416 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5417 TVC_UNKNOWN);
5418 }
5419
5420 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5421 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5422 return 0;
5423 }
5424
5425 static LRESULT
5426 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5427 {
5428 TRACE("\n");
5429
5430 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5431 UpdateWindow(infoPtr->hwnd);
5432 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5433 return 0;
5434 }
5435
5436 /* update theme after a WM_THEMECHANGED message */
5437 static LRESULT theme_changed(const TREEVIEW_INFO *infoPtr)
5438 {
5439 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5440 CloseThemeData (theme);
5441 OpenThemeData (infoPtr->hwnd, themeClass);
5442 return 0;
5443 }
5444
5445
5446 static LRESULT WINAPI
5447 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5448 {
5449 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5450
5451 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5452
5453 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5454 else
5455 {
5456 if (uMsg == WM_CREATE)
5457 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5458 else
5459 goto def;
5460 }
5461
5462 switch (uMsg)
5463 {
5464 case TVM_CREATEDRAGIMAGE:
5465 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5466
5467 case TVM_DELETEITEM:
5468 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5469
5470 case TVM_EDITLABELA:
5471 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5472
5473 case TVM_EDITLABELW:
5474 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5475
5476 case TVM_ENDEDITLABELNOW:
5477 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5478
5479 case TVM_ENSUREVISIBLE:
5480 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5481
5482 case TVM_EXPAND:
5483 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5484
5485 case TVM_GETBKCOLOR:
5486 return TREEVIEW_GetBkColor(infoPtr);
5487
5488 case TVM_GETCOUNT:
5489 return TREEVIEW_GetCount(infoPtr);
5490
5491 case TVM_GETEDITCONTROL:
5492 return TREEVIEW_GetEditControl(infoPtr);
5493
5494 case TVM_GETIMAGELIST:
5495 return TREEVIEW_GetImageList(infoPtr, wParam);
5496
5497 case TVM_GETINDENT:
5498 return TREEVIEW_GetIndent(infoPtr);
5499
5500 case TVM_GETINSERTMARKCOLOR:
5501 return TREEVIEW_GetInsertMarkColor(infoPtr);
5502
5503 case TVM_GETISEARCHSTRINGA:
5504 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5505 return 0;
5506
5507 case TVM_GETISEARCHSTRINGW:
5508 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5509 return 0;
5510
5511 case TVM_GETITEMA:
5512 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5513
5514 case TVM_GETITEMW:
5515 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5516
5517 case TVM_GETITEMHEIGHT:
5518 return TREEVIEW_GetItemHeight(infoPtr);
5519
5520 case TVM_GETITEMRECT:
5521 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5522
5523 case TVM_GETITEMSTATE:
5524 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5525
5526 case TVM_GETLINECOLOR:
5527 return TREEVIEW_GetLineColor(infoPtr);
5528
5529 case TVM_GETNEXTITEM:
5530 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5531
5532 case TVM_GETSCROLLTIME:
5533 return TREEVIEW_GetScrollTime(infoPtr);
5534
5535 case TVM_GETTEXTCOLOR:
5536 return TREEVIEW_GetTextColor(infoPtr);
5537
5538 case TVM_GETTOOLTIPS:
5539 return TREEVIEW_GetToolTips(infoPtr);
5540
5541 case TVM_GETUNICODEFORMAT:
5542 return TREEVIEW_GetUnicodeFormat(infoPtr);
5543
5544 case TVM_GETVISIBLECOUNT:
5545 return TREEVIEW_GetVisibleCount(infoPtr);
5546
5547 case TVM_HITTEST:
5548 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5549
5550 case TVM_INSERTITEMA:
5551 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5552
5553 case TVM_INSERTITEMW:
5554 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5555
5556 case TVM_SELECTITEM:
5557 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5558
5559 case TVM_SETBKCOLOR:
5560 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5561
5562 case TVM_SETIMAGELIST:
5563 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5564
5565 case TVM_SETINDENT:
5566 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5567
5568 case TVM_SETINSERTMARK:
5569 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5570
5571 case TVM_SETINSERTMARKCOLOR:
5572 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5573
5574 case TVM_SETITEMA:
5575 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5576
5577 case TVM_SETITEMW:
5578 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5579
5580 case TVM_SETLINECOLOR:
5581 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5582
5583 case TVM_SETITEMHEIGHT:
5584 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5585
5586 case TVM_SETSCROLLTIME:
5587 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5588
5589 case TVM_SETTEXTCOLOR:
5590 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5591
5592 case TVM_SETTOOLTIPS:
5593 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5594
5595 case TVM_SETUNICODEFORMAT:
5596 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5597
5598 case TVM_SORTCHILDREN:
5599 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5600
5601 case TVM_SORTCHILDRENCB:
5602 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5603
5604 case WM_CHAR:
5605 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5606
5607 case WM_COMMAND:
5608 return TREEVIEW_Command(infoPtr, wParam, lParam);
5609
5610 case WM_DESTROY:
5611 return TREEVIEW_Destroy(infoPtr);
5612
5613 /* WM_ENABLE */
5614
5615 case WM_ERASEBKGND:
5616 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5617
5618 case WM_GETDLGCODE:
5619 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5620
5621 case WM_GETFONT:
5622 return TREEVIEW_GetFont(infoPtr);
5623
5624 case WM_HSCROLL:
5625 return TREEVIEW_HScroll(infoPtr, wParam);
5626
5627 case WM_KEYDOWN:
5628 return TREEVIEW_KeyDown(infoPtr, wParam);
5629
5630 case WM_KILLFOCUS:
5631 return TREEVIEW_KillFocus(infoPtr);
5632
5633 case WM_LBUTTONDBLCLK:
5634 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5635
5636 case WM_LBUTTONDOWN:
5637 return TREEVIEW_LButtonDown(infoPtr, lParam);
5638
5639 /* WM_MBUTTONDOWN */
5640
5641 case WM_MOUSELEAVE:
5642 return TREEVIEW_MouseLeave(infoPtr);
5643
5644 case WM_MOUSEMOVE:
5645 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5646 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5647 else
5648 return 0;
5649
5650 case WM_NCLBUTTONDOWN:
5651 if (infoPtr->hwndEdit)
5652 SetFocus(infoPtr->hwnd);
5653 goto def;
5654
5655 case WM_NCPAINT:
5656 if (nc_paint (infoPtr, (HRGN)wParam))
5657 return 0;
5658 goto def;
5659
5660 case WM_NOTIFY:
5661 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5662
5663 case WM_NOTIFYFORMAT:
5664 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5665
5666 case WM_PRINTCLIENT:
5667 case WM_PAINT:
5668 return TREEVIEW_Paint(infoPtr, wParam);
5669
5670 case WM_RBUTTONDOWN:
5671 return TREEVIEW_RButtonDown(infoPtr, lParam);
5672
5673 case WM_SETCURSOR:
5674 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5675
5676 case WM_SETFOCUS:
5677 return TREEVIEW_SetFocus(infoPtr);
5678
5679 case WM_SETFONT:
5680 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5681
5682 case WM_SETREDRAW:
5683 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5684
5685 case WM_SIZE:
5686 return TREEVIEW_Size(infoPtr, wParam, lParam);
5687
5688 case WM_STYLECHANGED:
5689 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5690
5691 /* WM_SYSCOLORCHANGE */
5692
5693 /* WM_SYSKEYDOWN */
5694
5695 case WM_TIMER:
5696 return TREEVIEW_HandleTimer(infoPtr, wParam);
5697
5698 case WM_THEMECHANGED:
5699 return theme_changed (infoPtr);
5700
5701 case WM_VSCROLL:
5702 return TREEVIEW_VScroll(infoPtr, wParam);
5703
5704 /* WM_WININICHANGE */
5705
5706 case WM_MOUSEWHEEL:
5707 if (wParam & (MK_SHIFT | MK_CONTROL))
5708 goto def;
5709 return TREEVIEW_MouseWheel(infoPtr, wParam);
5710
5711 case WM_DRAWITEM:
5712 TRACE("drawItem\n");
5713 goto def;
5714
5715 default:
5716 /* This mostly catches MFC and Delphi messages. :( */
5717 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5718 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5719 def:
5720 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5721 }
5722 }
5723
5724
5725 /* Class Registration ***************************************************/
5726
5727 VOID
5728 TREEVIEW_Register(void)
5729 {
5730 WNDCLASSW wndClass;
5731
5732 TRACE("\n");
5733
5734 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5735 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5736 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5737 wndClass.cbClsExtra = 0;
5738 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5739
5740 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5741 wndClass.hbrBackground = 0;
5742 wndClass.lpszClassName = WC_TREEVIEWW;
5743
5744 RegisterClassW(&wndClass);
5745 }
5746
5747
5748 VOID
5749 TREEVIEW_Unregister(void)
5750 {
5751 UnregisterClassW(WC_TREEVIEWW, NULL);
5752 }
5753
5754
5755 /* Tree Verification ****************************************************/
5756
5757 #ifdef NDEBUG
5758 static inline void
5759 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5760
5761 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5762 TREEVIEW_ITEM *item)
5763 {
5764 assert(infoPtr != NULL);
5765 assert(item != NULL);
5766
5767 /* both NULL, or both non-null */
5768 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5769
5770 assert(item->firstChild != item);
5771 assert(item->lastChild != item);
5772
5773 if (item->firstChild)
5774 {
5775 assert(item->firstChild->parent == item);
5776 assert(item->firstChild->prevSibling == NULL);
5777 }
5778
5779 if (item->lastChild)
5780 {
5781 assert(item->lastChild->parent == item);
5782 assert(item->lastChild->nextSibling == NULL);
5783 }
5784
5785 assert(item->nextSibling != item);
5786 if (item->nextSibling)
5787 {
5788 assert(item->nextSibling->parent == item->parent);
5789 assert(item->nextSibling->prevSibling == item);
5790 }
5791
5792 assert(item->prevSibling != item);
5793 if (item->prevSibling)
5794 {
5795 assert(item->prevSibling->parent == item->parent);
5796 assert(item->prevSibling->nextSibling == item);
5797 }
5798 }
5799
5800 static inline void
5801 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5802 {
5803 assert(item != NULL);
5804
5805 assert(item->parent != NULL);
5806 assert(item->parent != item);
5807 assert(item->iLevel == item->parent->iLevel + 1);
5808
5809 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5810
5811 TREEVIEW_VerifyItemCommon(infoPtr, item);
5812
5813 TREEVIEW_VerifyChildren(infoPtr, item);
5814 }
5815
5816 static inline void
5817 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5818 {
5819 TREEVIEW_ITEM *child;
5820 assert(item != NULL);
5821
5822 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5823 TREEVIEW_VerifyItem(infoPtr, child);
5824 }
5825
5826 static inline void
5827 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5828 {
5829 TREEVIEW_ITEM *root = infoPtr->root;
5830
5831 assert(root != NULL);
5832 assert(root->iLevel == -1);
5833 assert(root->parent == NULL);
5834 assert(root->prevSibling == NULL);
5835
5836 TREEVIEW_VerifyItemCommon(infoPtr, root);
5837
5838 TREEVIEW_VerifyChildren(infoPtr, root);
5839 }
5840
5841 static void
5842 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5843 {
5844 assert(infoPtr != NULL);
5845
5846 TREEVIEW_VerifyRoot(infoPtr);
5847 }
5848 #endif
useful hacks and other patches not (yet) suitable for mainline