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comctl32: Fix notifications and return value when collapsing already collapsed node.
[wine.git] / dlls / comctl32 / treeview.c
blob3b2f74750840fd60a04e360437e06e8f105d22b3
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54 #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 "vssym32.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66
67 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
68
69 /* internal structures */
70 typedef struct tagTREEVIEW_INFO
71 {
72 HWND hwnd;
73 HWND hwndNotify; /* Owner window to send notifications to */
74 DWORD dwStyle;
75 HTREEITEM root;
76 UINT uInternalStatus;
77 INT Timer;
78 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
79 INT cdmode; /* last custom draw setting */
80 UINT uScrollTime; /* max. time for scrolling in milliseconds */
81 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
82
83 UINT uItemHeight; /* item height */
84 BOOL bHeightSet;
85
86 LONG clientWidth; /* width of control window */
87 LONG clientHeight; /* height of control window */
88
89 LONG treeWidth; /* width of visible tree items */
90 LONG treeHeight; /* height of visible tree items */
91
92 UINT uIndent; /* indentation in pixels */
93 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
94 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
95 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
96 HTREEITEM editItem; /* item being edited with builtin edit box */
97
98 HTREEITEM firstVisible; /* handle to first visible item */
99 LONG maxVisibleOrder;
100 HTREEITEM dropItem; /* handle to item selected by drag cursor */
101 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
102 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
103 HIMAGELIST dragList; /* Bitmap of dragged item */
104 LONG scrollX;
105 COLORREF clrBk;
106 COLORREF clrText;
107 COLORREF clrLine;
108 COLORREF clrInsertMark;
109 HFONT hFont;
110 HFONT hDefaultFont;
111 HFONT hBoldFont;
112 HFONT hUnderlineFont;
113 HCURSOR hcurHand;
114 HWND hwndToolTip;
115
116 HWND hwndEdit;
117 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
118 BOOL bIgnoreEditKillFocus;
119 BOOL bLabelChanged;
120
121 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
122 HIMAGELIST himlNormal;
123 int normalImageHeight;
124 int normalImageWidth;
125 HIMAGELIST himlState;
126 int stateImageHeight;
127 int stateImageWidth;
128 HDPA items;
129
130 DWORD lastKeyPressTimestamp;
131 WPARAM charCode;
132 INT nSearchParamLength;
133 WCHAR szSearchParam[ MAX_PATH ];
134 } TREEVIEW_INFO;
135
136 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
137 {
138 HTREEITEM parent; /* handle to parent or 0 if at root */
139 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
140 HTREEITEM firstChild; /* handle to first child or 0 if no child */
141
142 UINT callbackMask;
143 UINT state;
144 UINT stateMask;
145 LPWSTR pszText;
146 int cchTextMax;
147 int iImage;
148 int iSelectedImage;
149 int iExpandedImage;
150 int cChildren;
151 LPARAM lParam;
152 int iIntegral; /* item height multiplier (1 is normal) */
153 int iLevel; /* indentation level:0=root level */
154 HTREEITEM lastChild;
155 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
156 RECT rect;
157 LONG linesOffset;
158 LONG stateOffset;
159 LONG imageOffset;
160 LONG textOffset;
161 LONG textWidth; /* horizontal text extent for pszText */
162 LONG visibleOrder; /* visible ordering, 0 is first visible item */
163 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
164 } TREEVIEW_ITEM;
165
166 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
167 #define KEY_DELAY 450
168
169 /* bitflags for infoPtr->uInternalStatus */
170
171 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
172 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
173 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
174 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
175 #define TV_RDRAG 0x10 /* ditto Rbutton */
176 #define TV_RDRAGGING 0x20
177
178 /* bitflags for infoPtr->timer */
179
180 #define TV_EDIT_TIMER 2
181 #define TV_EDIT_TIMER_SET 2
182
183 #define TEXT_CALLBACK_SIZE 260
184
185 #define TREEVIEW_LEFT_MARGIN 8
186
187 #define MINIMUM_INDENT 19
188
189 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
190
191 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
192 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
193 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
194
195 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
196 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
197 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
198 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
199
200 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
201
202
203 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
204
205
206 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
207
208 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
209 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
210 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
211 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
212 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
213 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
214
215 /* Random Utilities *****************************************************/
216 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
217
218 /* Returns the treeview private data if hwnd is a treeview.
219 * Otherwise returns an undefined value. */
220 static inline TREEVIEW_INFO *
221 TREEVIEW_GetInfoPtr(HWND hwnd)
222 {
223 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
224 }
225
226 /* Don't call this. Nothing wants an item index. */
227 static inline int
228 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
229 {
230 return DPA_GetPtrIndex(infoPtr->items, handle);
231 }
232
233 /* Checks if item has changed and needs to be redrawn */
234 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
235 const TVITEMEXW *tvChange)
236 {
237 /* Number of children has changed */
238 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
239 return TRUE;
240
241 /* Image has changed and it's not a callback */
242 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
243 tiNew->iImage != I_IMAGECALLBACK)
244 return TRUE;
245
246 /* Selected image has changed and it's not a callback */
247 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
248 tiNew->iSelectedImage != I_IMAGECALLBACK)
249 return TRUE;
250
251 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
252 tiNew->iExpandedImage != I_IMAGECALLBACK)
253 return TRUE;
254
255 /* Text has changed and it's not a callback */
256 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
257 tiNew->pszText != LPSTR_TEXTCALLBACKW)
258 return TRUE;
259
260 /* Indent has changed */
261 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
262 return TRUE;
263
264 /* Item state has changed */
265 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
266 return TRUE;
267
268 return FALSE;
269 }
270
271 /***************************************************************************
272 * This method checks that handle is an item for this tree.
273 */
274 static BOOL
275 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
276 {
277 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
278 {
279 TRACE("invalid item %p\n", handle);
280 return FALSE;
281 }
282 else
283 return TRUE;
284 }
285
286 static HFONT
287 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
288 {
289 LOGFONTW font;
290
291 GetObjectW(hOrigFont, sizeof(font), &font);
292 font.lfWeight = FW_BOLD;
293 return CreateFontIndirectW(&font);
294 }
295
296 static HFONT
297 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
298 {
299 LOGFONTW font;
300
301 GetObjectW(hOrigFont, sizeof(font), &font);
302 font.lfUnderline = TRUE;
303 return CreateFontIndirectW(&font);
304 }
305
306 static inline HFONT
307 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
308 {
309 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
310 return infoPtr->hUnderlineFont;
311 if (item->state & TVIS_BOLD)
312 return infoPtr->hBoldFont;
313 return infoPtr->hFont;
314 }
315
316 /* for trace/debugging purposes only */
317 static const char *
318 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
319 {
320 if (item == NULL) return "<null item>";
321 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
322 if (item->pszText == NULL) return "<null>";
323 return debugstr_w(item->pszText);
324 }
325
326 /* An item is not a child of itself. */
327 static BOOL
328 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
329 {
330 do
331 {
332 child = child->parent;
333 if (child == parent) return TRUE;
334 } while (child != NULL);
335
336 return FALSE;
337 }
338
339
340 /* Tree Traversal *******************************************************/
341
342 /***************************************************************************
343 * This method returns the last expanded sibling or child child item
344 * of a tree node
345 */
346 static TREEVIEW_ITEM *
347 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
348 {
349 if (!item) return NULL;
350
351 while (item->lastChild)
352 {
353 if (item->state & TVIS_EXPANDED)
354 item = item->lastChild;
355 else
356 break;
357 }
358
359 if (item == infoPtr->root)
360 return NULL;
361
362 return item;
363 }
364
365 /***************************************************************************
366 * This method returns the previous non-hidden item in the list not
367 * considering the tree hierarchy.
368 */
369 static TREEVIEW_ITEM *
370 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
371 {
372 if (tvItem->prevSibling)
373 {
374 /* This item has a prevSibling, get the last item in the sibling's tree. */
375 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
376
377 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
378 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
379 else
380 return upItem;
381 }
382 else
383 {
384 /* this item does not have a prevSibling, get the parent */
385 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
386 }
387 }
388
389
390 /***************************************************************************
391 * This method returns the next physical item in the treeview not
392 * considering the tree hierarchy.
393 */
394 static TREEVIEW_ITEM *
395 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
396 {
397 /*
398 * If this item has children and is expanded, return the first child
399 */
400 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
401 {
402 return tvItem->firstChild;
403 }
404
405
406 /*
407 * try to get the sibling
408 */
409 if (tvItem->nextSibling)
410 return tvItem->nextSibling;
411
412 /*
413 * Otherwise, get the parent's sibling.
414 */
415 while (tvItem->parent)
416 {
417 tvItem = tvItem->parent;
418
419 if (tvItem->nextSibling)
420 return tvItem->nextSibling;
421 }
422
423 return NULL;
424 }
425
426 /***************************************************************************
427 * This method returns the nth item starting at the given item. It returns
428 * the last item (or first) we we run out of items.
429 *
430 * Will scroll backward if count is <0.
431 * forward if count is >0.
432 */
433 static TREEVIEW_ITEM *
434 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
435 LONG count)
436 {
437 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
438 TREEVIEW_ITEM *previousItem;
439
440 assert(item != NULL);
441
442 if (count > 0)
443 {
444 next_item = TREEVIEW_GetNextListItem;
445 }
446 else if (count < 0)
447 {
448 count = -count;
449 next_item = TREEVIEW_GetPrevListItem;
450 }
451 else
452 return item;
453
454 do
455 {
456 previousItem = item;
457 item = next_item(infoPtr, item);
458
459 } while (--count && item != NULL);
460
461
462 return item ? item : previousItem;
463 }
464
465 /* Notifications ************************************************************/
466
467 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
468 {
469 if (!infoPtr->bNtfUnicode) {
470 switch (code) {
471 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
472 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
473 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
474 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
475 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
476 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
477 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
478 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
479 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
480 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
481 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
482 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
483 }
484 }
485 return code;
486 }
487
488 static inline BOOL
489 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPNMHDR pnmh)
490 {
491 TRACE("wParam=%ld, lParam=%p\n", wParam, pnmh);
492 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, (LPARAM)pnmh);
493 }
494
495 static BOOL
496 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
497 {
498 NMHDR nmhdr;
499 HWND hwnd = infoPtr->hwnd;
500
501 TRACE("%d\n", code);
502 nmhdr.hwndFrom = hwnd;
503 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
504 nmhdr.code = get_notifycode(infoPtr, code);
505
506 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, &nmhdr);
507 }
508
509 static VOID
510 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
511 {
512 tvItem->mask = mask;
513 tvItem->hItem = item;
514 tvItem->state = item->state;
515 tvItem->stateMask = 0;
516 tvItem->iImage = item->iImage;
517 tvItem->iSelectedImage = item->iSelectedImage;
518 tvItem->cChildren = item->cChildren;
519 tvItem->lParam = item->lParam;
520
521 if(mask & TVIF_TEXT)
522 {
523 if (!infoPtr->bNtfUnicode)
524 {
525 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
526 tvItem->pszText = Alloc (tvItem->cchTextMax);
527 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
528 }
529 else
530 {
531 tvItem->cchTextMax = item->cchTextMax;
532 tvItem->pszText = item->pszText;
533 }
534 }
535 else
536 {
537 tvItem->cchTextMax = 0;
538 tvItem->pszText = NULL;
539 }
540 }
541
542 static BOOL
543 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
544 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
545 {
546 HWND hwnd = infoPtr->hwnd;
547 NMTREEVIEWW nmhdr;
548 BOOL ret;
549
550 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
551 code, action, oldItem, newItem);
552
553 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
554
555 nmhdr.hdr.hwndFrom = hwnd;
556 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
557 nmhdr.hdr.code = get_notifycode(infoPtr, code);
558 nmhdr.action = action;
559
560 if (oldItem)
561 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
562
563 if (newItem)
564 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
565
566 nmhdr.ptDrag.x = 0;
567 nmhdr.ptDrag.y = 0;
568
569 ret = TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
570 if (!infoPtr->bNtfUnicode)
571 {
572 Free(nmhdr.itemOld.pszText);
573 Free(nmhdr.itemNew.pszText);
574 }
575 return ret;
576 }
577
578 static BOOL
579 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
580 HTREEITEM dragItem, POINT pt)
581 {
582 HWND hwnd = infoPtr->hwnd;
583 NMTREEVIEWW nmhdr;
584
585 TRACE("code:%d dragitem:%p\n", code, dragItem);
586
587 nmhdr.hdr.hwndFrom = hwnd;
588 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
589 nmhdr.hdr.code = get_notifycode(infoPtr, code);
590 nmhdr.action = 0;
591 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
592 nmhdr.itemNew.hItem = dragItem;
593 nmhdr.itemNew.state = dragItem->state;
594 nmhdr.itemNew.lParam = dragItem->lParam;
595
596 nmhdr.ptDrag.x = pt.x;
597 nmhdr.ptDrag.y = pt.y;
598
599 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
600 }
601
602
603 static BOOL
604 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
605 HDC hdc, RECT rc)
606 {
607 HWND hwnd = infoPtr->hwnd;
608 NMTVCUSTOMDRAW nmcdhdr;
609 LPNMCUSTOMDRAW nmcd;
610
611 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
612
613 nmcd = &nmcdhdr.nmcd;
614 nmcd->hdr.hwndFrom = hwnd;
615 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
616 nmcd->hdr.code = NM_CUSTOMDRAW;
617 nmcd->dwDrawStage = dwDrawStage;
618 nmcd->hdc = hdc;
619 nmcd->rc = rc;
620 nmcd->dwItemSpec = 0;
621 nmcd->uItemState = 0;
622 nmcd->lItemlParam = 0;
623 nmcdhdr.clrText = infoPtr->clrText;
624 nmcdhdr.clrTextBk = infoPtr->clrBk;
625 nmcdhdr.iLevel = 0;
626
627 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr.nmcd.hdr);
628 }
629
630
631
632 /* FIXME: need to find out when the flags in uItemState need to be set */
633
634 static BOOL
635 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
636 TREEVIEW_ITEM *item, UINT uItemDrawState,
637 NMTVCUSTOMDRAW *nmcdhdr)
638 {
639 HWND hwnd = infoPtr->hwnd;
640 LPNMCUSTOMDRAW nmcd;
641 DWORD dwDrawStage;
642 DWORD_PTR dwItemSpec;
643 UINT uItemState;
644
645 dwDrawStage = CDDS_ITEM | uItemDrawState;
646 dwItemSpec = (DWORD_PTR)item;
647 uItemState = 0;
648 if (item->state & TVIS_SELECTED)
649 uItemState |= CDIS_SELECTED;
650 if (item == infoPtr->selectedItem)
651 uItemState |= CDIS_FOCUS;
652 if (item == infoPtr->hotItem)
653 uItemState |= CDIS_HOT;
654
655 nmcd = &nmcdhdr->nmcd;
656 nmcd->hdr.hwndFrom = hwnd;
657 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
658 nmcd->hdr.code = NM_CUSTOMDRAW;
659 nmcd->dwDrawStage = dwDrawStage;
660 nmcd->hdc = hdc;
661 nmcd->rc = item->rect;
662 nmcd->dwItemSpec = dwItemSpec;
663 nmcd->uItemState = uItemState;
664 nmcd->lItemlParam = item->lParam;
665 nmcdhdr->iLevel = item->iLevel;
666
667 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
668 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
669 nmcd->uItemState, nmcd->lItemlParam);
670
671 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr->nmcd.hdr);
672 }
673
674 static BOOL
675 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
676 {
677 HWND hwnd = infoPtr->hwnd;
678 NMTVDISPINFOW tvdi;
679 BOOL ret;
680
681 tvdi.hdr.hwndFrom = hwnd;
682 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
683 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
684
685 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
686 &tvdi.item, editItem);
687
688 ret = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
689
690 if (!infoPtr->bNtfUnicode)
691 Free(tvdi.item.pszText);
692
693 return ret;
694 }
695
696 static void
697 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
698 UINT mask)
699 {
700 NMTVDISPINFOEXW callback;
701 HWND hwnd = infoPtr->hwnd;
702
703 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
704 mask &= item->callbackMask;
705
706 if (mask == 0) return;
707
708 callback.hdr.hwndFrom = hwnd;
709 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
710 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
711
712 /* 'state' always contains valid value, as well as 'lParam'.
713 * All other parameters are uninitialized.
714 */
715 callback.item.pszText = item->pszText;
716 callback.item.cchTextMax = item->cchTextMax;
717 callback.item.mask = mask;
718 callback.item.hItem = item;
719 callback.item.state = item->state;
720 callback.item.lParam = item->lParam;
721
722 /* If text is changed we need to recalculate textWidth */
723 if (mask & TVIF_TEXT)
724 item->textWidth = 0;
725
726 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, &callback.hdr);
727 TRACE("resulting code 0x%08x\n", callback.hdr.code);
728
729 /* It may have changed due to a call to SetItem. */
730 mask &= item->callbackMask;
731
732 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
733 {
734 /* Instead of copying text into our buffer user specified his own */
735 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
736 LPWSTR newText;
737 int buflen;
738 int len = MultiByteToWideChar( CP_ACP, 0,
739 (LPSTR)callback.item.pszText, -1,
740 NULL, 0);
741 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
742 newText = ReAlloc(item->pszText, buflen);
743
744 TRACE("returned str %s, len=%d, buflen=%d\n",
745 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
746
747 if (newText)
748 {
749 item->pszText = newText;
750 MultiByteToWideChar( CP_ACP, 0,
751 (LPSTR)callback.item.pszText, -1,
752 item->pszText, buflen/sizeof(WCHAR));
753 item->cchTextMax = buflen/sizeof(WCHAR);
754 }
755 /* If ReAlloc fails we have nothing to do, but keep original text */
756 }
757 else {
758 int len = max(lstrlenW(callback.item.pszText) + 1,
759 TEXT_CALLBACK_SIZE);
760 LPWSTR newText = ReAlloc(item->pszText, len);
761
762 TRACE("returned wstr %s, len=%d\n",
763 debugstr_w(callback.item.pszText), len);
764
765 if (newText)
766 {
767 item->pszText = newText;
768 strcpyW(item->pszText, callback.item.pszText);
769 item->cchTextMax = len;
770 }
771 /* If ReAlloc fails we have nothing to do, but keep original text */
772 }
773 }
774 else if (mask & TVIF_TEXT) {
775 /* User put text into our buffer, that is ok unless A string */
776 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
777 LPWSTR newText;
778 int buflen;
779 int len = MultiByteToWideChar( CP_ACP, 0,
780 (LPSTR)callback.item.pszText, -1,
781 NULL, 0);
782 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
783 newText = Alloc(buflen);
784
785 TRACE("same buffer str %s, len=%d, buflen=%d\n",
786 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
787
788 if (newText)
789 {
790 LPWSTR oldText = item->pszText;
791 item->pszText = newText;
792 MultiByteToWideChar( CP_ACP, 0,
793 (LPSTR)callback.item.pszText, -1,
794 item->pszText, buflen/sizeof(WCHAR));
795 item->cchTextMax = buflen/sizeof(WCHAR);
796 Free(oldText);
797 }
798 }
799 }
800
801 if (mask & TVIF_IMAGE)
802 item->iImage = callback.item.iImage;
803
804 if (mask & TVIF_SELECTEDIMAGE)
805 item->iSelectedImage = callback.item.iSelectedImage;
806
807 if (mask & TVIF_EXPANDEDIMAGE)
808 item->iExpandedImage = callback.item.iExpandedImage;
809
810 if (mask & TVIF_CHILDREN)
811 item->cChildren = callback.item.cChildren;
812
813 if (callback.item.mask & TVIF_STATE)
814 {
815 item->state &= ~callback.item.stateMask;
816 item->state |= (callback.item.state & callback.item.stateMask);
817 }
818
819 /* These members are now permanently set. */
820 if (callback.item.mask & TVIF_DI_SETITEM)
821 item->callbackMask &= ~callback.item.mask;
822 }
823
824 /***************************************************************************
825 * This function uses cChildren field to decide whether the item has
826 * children or not.
827 * Note: if this returns TRUE, the child items may not actually exist,
828 * they could be virtual.
829 *
830 * Just use item->firstChild to check for physical children.
831 */
832 static BOOL
833 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
834 {
835 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
836
837 return item->cChildren > 0;
838 }
839
840 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
841 {
842 INT format;
843
844 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
845
846 if (nCommand != NF_REQUERY) return 0;
847
848 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
849 TRACE("format=%d\n", format);
850
851 /* Invalid format returned by NF_QUERY defaults to ANSI*/
852 if (format != NFR_ANSI && format != NFR_UNICODE)
853 format = NFR_ANSI;
854
855 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
856
857 return format;
858 }
859
860 /* Item Position ********************************************************/
861
862 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
863 static VOID
864 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
865 {
866 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
867 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
868 > TVS_LINESATROOT);
869
870 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
871 - infoPtr->scrollX;
872 item->stateOffset = item->linesOffset + infoPtr->uIndent;
873 item->imageOffset = item->stateOffset
874 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
875 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
876 }
877
878 static VOID
879 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
880 {
881 HDC hdc;
882 HFONT hOldFont=0;
883 SIZE sz;
884
885 /* DRAW's OM docker creates items like this */
886 if (item->pszText == NULL)
887 {
888 item->textWidth = 0;
889 return;
890 }
891
892 if (hDC != 0)
893 {
894 hdc = hDC;
895 }
896 else
897 {
898 hdc = GetDC(infoPtr->hwnd);
899 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
900 }
901
902 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
903 item->textWidth = sz.cx;
904
905 if (hDC == 0)
906 {
907 SelectObject(hdc, hOldFont);
908 ReleaseDC(0, hdc);
909 }
910 }
911
912 static VOID
913 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
914 {
915 item->rect.top = infoPtr->uItemHeight *
916 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
917
918 item->rect.bottom = item->rect.top
919 + infoPtr->uItemHeight * item->iIntegral - 1;
920
921 item->rect.left = 0;
922 item->rect.right = infoPtr->clientWidth;
923 }
924
925 /* We know that only items after start need their order updated. */
926 static void
927 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
928 {
929 TREEVIEW_ITEM *item;
930 int order;
931
932 if (!start)
933 {
934 start = infoPtr->root->firstChild;
935 order = 0;
936 }
937 else
938 order = start->visibleOrder;
939
940 for (item = start; item != NULL;
941 item = TREEVIEW_GetNextListItem(infoPtr, item))
942 {
943 if (!ISVISIBLE(item) && order > 0)
944 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
945 item->visibleOrder = order;
946 order += item->iIntegral;
947 }
948
949 infoPtr->maxVisibleOrder = order;
950
951 for (item = start; item != NULL;
952 item = TREEVIEW_GetNextListItem(infoPtr, item))
953 {
954 TREEVIEW_ComputeItemRect(infoPtr, item);
955 }
956 }
957
958
959 /* Update metrics of all items in selected subtree.
960 * root must be expanded
961 */
962 static VOID
963 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
964 {
965 TREEVIEW_ITEM *sibling;
966 HDC hdc;
967 HFONT hOldFont;
968
969 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
970 return;
971
972 root->state &= ~TVIS_EXPANDED;
973 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
974 root->state |= TVIS_EXPANDED;
975
976 hdc = GetDC(infoPtr->hwnd);
977 hOldFont = SelectObject(hdc, infoPtr->hFont);
978
979 for (; root != sibling;
980 root = TREEVIEW_GetNextListItem(infoPtr, root))
981 {
982 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
983
984 if (root->callbackMask & TVIF_TEXT)
985 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
986
987 if (root->textWidth == 0)
988 {
989 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
990 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
991 }
992 }
993
994 SelectObject(hdc, hOldFont);
995 ReleaseDC(infoPtr->hwnd, hdc);
996 }
997
998 /* Item Allocation **********************************************************/
999
1000 static TREEVIEW_ITEM *
1001 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
1002 {
1003 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1004
1005 if (!newItem)
1006 return NULL;
1007
1008 /* I_IMAGENONE would make more sense but this is neither what is
1009 * documented (MSDN doesn't specify) nor what Windows actually does
1010 * (it sets it to zero)... and I can so imagine an application using
1011 * inc/dec to toggle the images. */
1012 newItem->iImage = 0;
1013 newItem->iSelectedImage = 0;
1014 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1015 newItem->infoPtr = infoPtr;
1016
1017 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1018 {
1019 Free(newItem);
1020 return NULL;
1021 }
1022
1023 return newItem;
1024 }
1025
1026 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1027 * free item->pszText. */
1028 static void
1029 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1030 {
1031 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1032 if (infoPtr->selectedItem == item)
1033 infoPtr->selectedItem = NULL;
1034 if (infoPtr->hotItem == item)
1035 infoPtr->hotItem = NULL;
1036 if (infoPtr->focusedItem == item)
1037 infoPtr->focusedItem = NULL;
1038 if (infoPtr->firstVisible == item)
1039 infoPtr->firstVisible = NULL;
1040 if (infoPtr->dropItem == item)
1041 infoPtr->dropItem = NULL;
1042 if (infoPtr->insertMarkItem == item)
1043 infoPtr->insertMarkItem = NULL;
1044 Free(item);
1045 }
1046
1047
1048 /* Item Insertion *******************************************************/
1049
1050 /***************************************************************************
1051 * This method inserts newItem before sibling as a child of parent.
1052 * sibling can be NULL, but only if parent has no children.
1053 */
1054 static void
1055 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1056 TREEVIEW_ITEM *parent)
1057 {
1058 assert(parent != NULL);
1059
1060 if (sibling != NULL)
1061 {
1062 assert(sibling->parent == parent);
1063
1064 if (sibling->prevSibling != NULL)
1065 sibling->prevSibling->nextSibling = newItem;
1066
1067 newItem->prevSibling = sibling->prevSibling;
1068 sibling->prevSibling = newItem;
1069 }
1070 else
1071 newItem->prevSibling = NULL;
1072
1073 newItem->nextSibling = sibling;
1074
1075 if (parent->firstChild == sibling)
1076 parent->firstChild = newItem;
1077
1078 if (parent->lastChild == NULL)
1079 parent->lastChild = newItem;
1080 }
1081
1082 /***************************************************************************
1083 * This method inserts newItem after sibling as a child of parent.
1084 * sibling can be NULL, but only if parent has no children.
1085 */
1086 static void
1087 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1088 TREEVIEW_ITEM *parent)
1089 {
1090 assert(parent != NULL);
1091
1092 if (sibling != NULL)
1093 {
1094 assert(sibling->parent == parent);
1095
1096 if (sibling->nextSibling != NULL)
1097 sibling->nextSibling->prevSibling = newItem;
1098
1099 newItem->nextSibling = sibling->nextSibling;
1100 sibling->nextSibling = newItem;
1101 }
1102 else
1103 newItem->nextSibling = NULL;
1104
1105 newItem->prevSibling = sibling;
1106
1107 if (parent->lastChild == sibling)
1108 parent->lastChild = newItem;
1109
1110 if (parent->firstChild == NULL)
1111 parent->firstChild = newItem;
1112 }
1113
1114 static BOOL
1115 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1116 const TVITEMEXW *tvItem, BOOL isW)
1117 {
1118 UINT callbackClear = 0;
1119 UINT callbackSet = 0;
1120
1121 TRACE("item %p\n", item);
1122 /* Do this first in case it fails. */
1123 if (tvItem->mask & TVIF_TEXT)
1124 {
1125 item->textWidth = 0; /* force width recalculation */
1126 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1127 {
1128 int len;
1129 LPWSTR newText;
1130 if (isW)
1131 len = lstrlenW(tvItem->pszText) + 1;
1132 else
1133 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1134
1135 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1136
1137 if (newText == NULL) return FALSE;
1138
1139 callbackClear |= TVIF_TEXT;
1140
1141 item->pszText = newText;
1142 item->cchTextMax = len;
1143 if (isW)
1144 lstrcpynW(item->pszText, tvItem->pszText, len);
1145 else
1146 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1147 item->pszText, len);
1148
1149 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1150 }
1151 else
1152 {
1153 callbackSet |= TVIF_TEXT;
1154
1155 item->pszText = ReAlloc(item->pszText,
1156 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1157 item->cchTextMax = TEXT_CALLBACK_SIZE;
1158 TRACE("setting callback, item %p\n", item);
1159 }
1160 }
1161
1162 if (tvItem->mask & TVIF_CHILDREN)
1163 {
1164 item->cChildren = tvItem->cChildren;
1165
1166 if (item->cChildren == I_CHILDRENCALLBACK)
1167 callbackSet |= TVIF_CHILDREN;
1168 else
1169 callbackClear |= TVIF_CHILDREN;
1170 }
1171
1172 if (tvItem->mask & TVIF_IMAGE)
1173 {
1174 item->iImage = tvItem->iImage;
1175
1176 if (item->iImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_IMAGE;
1178 else
1179 callbackClear |= TVIF_IMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1183 {
1184 item->iSelectedImage = tvItem->iSelectedImage;
1185
1186 if (item->iSelectedImage == I_IMAGECALLBACK)
1187 callbackSet |= TVIF_SELECTEDIMAGE;
1188 else
1189 callbackClear |= TVIF_SELECTEDIMAGE;
1190 }
1191
1192 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1193 {
1194 item->iExpandedImage = tvItem->iExpandedImage;
1195
1196 if (item->iExpandedImage == I_IMAGECALLBACK)
1197 callbackSet |= TVIF_EXPANDEDIMAGE;
1198 else
1199 callbackClear |= TVIF_EXPANDEDIMAGE;
1200 }
1201
1202 if (tvItem->mask & TVIF_PARAM)
1203 item->lParam = tvItem->lParam;
1204
1205 /* If the application sets TVIF_INTEGRAL without
1206 * supplying a TVITEMEX structure, it's toast. */
1207 if (tvItem->mask & TVIF_INTEGRAL)
1208 item->iIntegral = tvItem->iIntegral;
1209
1210 if (tvItem->mask & TVIF_STATE)
1211 {
1212 TRACE("prevstate,state,mask:%x,%x,%x\n", item->state, tvItem->state,
1213 tvItem->stateMask);
1214 item->state &= ~tvItem->stateMask;
1215 item->state |= (tvItem->state & tvItem->stateMask);
1216 }
1217
1218 if (tvItem->mask & TVIF_STATEEX)
1219 {
1220 FIXME("New extended state: %x\n", tvItem->uStateEx);
1221 }
1222
1223 item->callbackMask |= callbackSet;
1224 item->callbackMask &= ~callbackClear;
1225
1226 return TRUE;
1227 }
1228
1229 /* Note that the new item is pre-zeroed. */
1230 static LRESULT
1231 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1232 {
1233 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1234 HTREEITEM insertAfter;
1235 TREEVIEW_ITEM *newItem, *parentItem;
1236 BOOL bTextUpdated = FALSE;
1237
1238 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1239 {
1240 parentItem = infoPtr->root;
1241 }
1242 else
1243 {
1244 parentItem = ptdi->hParent;
1245
1246 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1247 {
1248 WARN("invalid parent %p\n", parentItem);
1249 return 0;
1250 }
1251 }
1252
1253 insertAfter = ptdi->hInsertAfter;
1254
1255 /* Validate this now for convenience. */
1256 switch ((DWORD_PTR)insertAfter)
1257 {
1258 case (DWORD_PTR)TVI_FIRST:
1259 case (DWORD_PTR)TVI_LAST:
1260 case (DWORD_PTR)TVI_SORT:
1261 break;
1262
1263 default:
1264 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1265 insertAfter->parent != parentItem)
1266 {
1267 WARN("invalid insert after %p\n", insertAfter);
1268 insertAfter = TVI_LAST;
1269 }
1270 }
1271
1272 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1273 (tvItem->mask & TVIF_TEXT)
1274 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1275 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1276 : "<no label>");
1277
1278 newItem = TREEVIEW_AllocateItem(infoPtr);
1279 if (newItem == NULL)
1280 return 0;
1281
1282 newItem->parent = parentItem;
1283 newItem->iIntegral = 1;
1284 newItem->visibleOrder = -1;
1285
1286 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1287 return 0;
1288
1289 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1290
1291 infoPtr->uNumItems++;
1292
1293 switch ((DWORD_PTR)insertAfter)
1294 {
1295 case (DWORD_PTR)TVI_FIRST:
1296 {
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1299 if (infoPtr->firstVisible == originalFirst)
1300 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1301 }
1302 break;
1303
1304 case (DWORD_PTR)TVI_LAST:
1305 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1306 break;
1307
1308 /* hInsertAfter names a specific item we want to insert after */
1309 default:
1310 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1311 break;
1312
1313 case (DWORD_PTR)TVI_SORT:
1314 {
1315 TREEVIEW_ITEM *aChild;
1316 TREEVIEW_ITEM *previousChild = NULL;
1317 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1318 BOOL bItemInserted = FALSE;
1319
1320 aChild = parentItem->firstChild;
1321
1322 bTextUpdated = TRUE;
1323 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1324
1325 /* Iterate the parent children to see where we fit in */
1326 while (aChild != NULL)
1327 {
1328 INT comp;
1329
1330 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1331 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1332
1333 if (comp < 0) /* we are smaller than the current one */
1334 {
1335 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1336 if (infoPtr->firstVisible == originalFirst &&
1337 aChild == originalFirst)
1338 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1339 bItemInserted = TRUE;
1340 break;
1341 }
1342 else if (comp > 0) /* we are bigger than the current one */
1343 {
1344 previousChild = aChild;
1345
1346 /* This will help us to exit if there is no more sibling */
1347 aChild = (aChild->nextSibling == 0)
1348 ? NULL
1349 : aChild->nextSibling;
1350
1351 /* Look at the next item */
1352 continue;
1353 }
1354 else if (comp == 0)
1355 {
1356 /*
1357 * An item with this name is already existing, therefore,
1358 * we add after the one we found
1359 */
1360 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1361 bItemInserted = TRUE;
1362 break;
1363 }
1364 }
1365
1366 /*
1367 * we reach the end of the child list and the item has not
1368 * yet been inserted, therefore, insert it after the last child.
1369 */
1370 if ((!bItemInserted) && (aChild == NULL))
1371 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1372
1373 break;
1374 }
1375 }
1376
1377
1378 TRACE("new item %p; parent %p, mask %x\n", newItem,
1379 newItem->parent, tvItem->mask);
1380
1381 newItem->iLevel = newItem->parent->iLevel + 1;
1382
1383 if (newItem->parent->cChildren == 0)
1384 newItem->parent->cChildren = 1;
1385
1386 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1387 {
1388 if (STATEIMAGEINDEX(newItem->state) == 0)
1389 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1390 }
1391
1392 if (infoPtr->firstVisible == NULL)
1393 infoPtr->firstVisible = newItem;
1394
1395 TREEVIEW_VerifyTree(infoPtr);
1396
1397 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1398
1399 if (parentItem == infoPtr->root ||
1400 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1401 {
1402 TREEVIEW_ITEM *item;
1403 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1404
1405 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1406 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1407
1408 if (!bTextUpdated)
1409 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1410
1411 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1412 TREEVIEW_UpdateScrollBars(infoPtr);
1413 /*
1414 * if the item was inserted in a visible part of the tree,
1415 * invalidate it, as well as those after it
1416 */
1417 for (item = newItem;
1418 item != NULL;
1419 item = TREEVIEW_GetNextListItem(infoPtr, item))
1420 TREEVIEW_Invalidate(infoPtr, item);
1421 }
1422 else
1423 {
1424 /* refresh treeview if newItem is the first item inserted under parentItem */
1425 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1426 {
1427 /* parent got '+' - update it */
1428 TREEVIEW_Invalidate(infoPtr, parentItem);
1429 }
1430 }
1431
1432 return (LRESULT)newItem;
1433 }
1434
1435 /* Item Deletion ************************************************************/
1436 static void
1437 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1438
1439 static void
1440 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1441 {
1442 TREEVIEW_ITEM *kill = parentItem->firstChild;
1443
1444 while (kill != NULL)
1445 {
1446 TREEVIEW_ITEM *next = kill->nextSibling;
1447
1448 TREEVIEW_RemoveItem(infoPtr, kill);
1449
1450 kill = next;
1451 }
1452
1453 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1454 assert(parentItem->firstChild == NULL);
1455 assert(parentItem->lastChild == NULL);
1456 }
1457
1458 static void
1459 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1460 {
1461 TREEVIEW_ITEM *parentItem = item->parent;
1462
1463 assert(item != NULL);
1464 assert(item->parent != NULL); /* i.e. it must not be the root */
1465
1466 if (parentItem->firstChild == item)
1467 parentItem->firstChild = item->nextSibling;
1468
1469 if (parentItem->lastChild == item)
1470 parentItem->lastChild = item->prevSibling;
1471
1472 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1473 && parentItem->cChildren > 0)
1474 parentItem->cChildren = 0;
1475
1476 if (item->prevSibling)
1477 item->prevSibling->nextSibling = item->nextSibling;
1478
1479 if (item->nextSibling)
1480 item->nextSibling->prevSibling = item->prevSibling;
1481 }
1482
1483 static void
1484 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1485 {
1486 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1487
1488 if (item->firstChild)
1489 TREEVIEW_RemoveAllChildren(infoPtr, item);
1490
1491 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1492 TVIF_HANDLE | TVIF_PARAM, item, 0);
1493
1494 TREEVIEW_UnlinkItem(item);
1495
1496 infoPtr->uNumItems--;
1497
1498 if (item->pszText != LPSTR_TEXTCALLBACKW)
1499 Free(item->pszText);
1500
1501 TREEVIEW_FreeItem(infoPtr, item);
1502 }
1503
1504
1505 /* Empty out the tree. */
1506 static void
1507 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1508 {
1509 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1510
1511 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1512 }
1513
1514 static LRESULT
1515 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1516 {
1517 TREEVIEW_ITEM *newSelection = NULL;
1518 TREEVIEW_ITEM *newFirstVisible = NULL;
1519 TREEVIEW_ITEM *parent, *prev = NULL;
1520 BOOL visible = FALSE;
1521
1522 if (item == TVI_ROOT || !item)
1523 {
1524 TRACE("TVI_ROOT\n");
1525 parent = infoPtr->root;
1526 newSelection = NULL;
1527 visible = TRUE;
1528 TREEVIEW_RemoveTree(infoPtr);
1529 }
1530 else
1531 {
1532 if (!TREEVIEW_ValidItem(infoPtr, item))
1533 return FALSE;
1534
1535 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1536 parent = item->parent;
1537
1538 if (ISVISIBLE(item))
1539 {
1540 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1541 visible = TRUE;
1542 }
1543
1544 if (infoPtr->selectedItem != NULL
1545 && (item == infoPtr->selectedItem
1546 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1547 {
1548 if (item->nextSibling)
1549 newSelection = item->nextSibling;
1550 else if (item->parent != infoPtr->root)
1551 newSelection = item->parent;
1552 else
1553 newSelection = item->prevSibling;
1554 TRACE("newSelection = %p\n", newSelection);
1555 }
1556
1557 if (infoPtr->firstVisible == item)
1558 {
1559 if (item->nextSibling)
1560 newFirstVisible = item->nextSibling;
1561 else if (item->prevSibling)
1562 newFirstVisible = item->prevSibling;
1563 else if (item->parent != infoPtr->root)
1564 newFirstVisible = item->parent;
1565 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1566 }
1567 else
1568 newFirstVisible = infoPtr->firstVisible;
1569
1570 TREEVIEW_RemoveItem(infoPtr, item);
1571 }
1572
1573 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1574 if (!infoPtr->selectedItem && newSelection)
1575 {
1576 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1577 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1578 }
1579
1580 /* Validate insertMark dropItem.
1581 * hotItem ??? - used for comparison only.
1582 */
1583 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1584 infoPtr->insertMarkItem = 0;
1585
1586 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1587 infoPtr->dropItem = 0;
1588
1589 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1590 newFirstVisible = infoPtr->root->firstChild;
1591
1592 TREEVIEW_VerifyTree(infoPtr);
1593
1594 if (!infoPtr->bRedraw) return TRUE;
1595
1596 if (visible)
1597 {
1598 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1599 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1600 TREEVIEW_UpdateScrollBars(infoPtr);
1601 TREEVIEW_Invalidate(infoPtr, NULL);
1602 }
1603 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1604 {
1605 /* parent lost '+/-' - update it */
1606 TREEVIEW_Invalidate(infoPtr, parent);
1607 }
1608
1609 return TRUE;
1610 }
1611
1612
1613 /* Get/Set Messages *********************************************************/
1614 static LRESULT
1615 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1616 {
1617 infoPtr->bRedraw = wParam != 0;
1618
1619 if (infoPtr->bRedraw)
1620 {
1621 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1622 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1623 TREEVIEW_UpdateScrollBars(infoPtr);
1624 TREEVIEW_Invalidate(infoPtr, NULL);
1625 }
1626 return 0;
1627 }
1628
1629 static LRESULT
1630 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1631 {
1632 TRACE("\n");
1633 return infoPtr->uIndent;
1634 }
1635
1636 static LRESULT
1637 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1638 {
1639 TRACE("\n");
1640
1641 if (newIndent < MINIMUM_INDENT)
1642 newIndent = MINIMUM_INDENT;
1643
1644 if (infoPtr->uIndent != newIndent)
1645 {
1646 infoPtr->uIndent = newIndent;
1647 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1648 TREEVIEW_UpdateScrollBars(infoPtr);
1649 TREEVIEW_Invalidate(infoPtr, NULL);
1650 }
1651
1652 return 0;
1653 }
1654
1655
1656 static LRESULT
1657 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1658 {
1659 TRACE("\n");
1660 return (LRESULT)infoPtr->hwndToolTip;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1665 {
1666 HWND prevToolTip;
1667
1668 TRACE("\n");
1669 prevToolTip = infoPtr->hwndToolTip;
1670 infoPtr->hwndToolTip = hwndTT;
1671
1672 return (LRESULT)prevToolTip;
1673 }
1674
1675 static LRESULT
1676 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1677 {
1678 BOOL rc = infoPtr->bNtfUnicode;
1679 infoPtr->bNtfUnicode = fUnicode;
1680 return rc;
1681 }
1682
1683 static LRESULT
1684 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1685 {
1686 return infoPtr->bNtfUnicode;
1687 }
1688
1689 static LRESULT
1690 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1691 {
1692 return infoPtr->uScrollTime;
1693 }
1694
1695 static LRESULT
1696 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1697 {
1698 UINT uOldScrollTime = infoPtr->uScrollTime;
1699
1700 infoPtr->uScrollTime = min(uScrollTime, 100);
1701
1702 return uOldScrollTime;
1703 }
1704
1705
1706 static LRESULT
1707 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1708 {
1709 TRACE("\n");
1710
1711 switch (wParam)
1712 {
1713 case TVSIL_NORMAL:
1714 return (LRESULT)infoPtr->himlNormal;
1715
1716 case TVSIL_STATE:
1717 return (LRESULT)infoPtr->himlState;
1718
1719 default:
1720 return 0;
1721 }
1722 }
1723
1724 #define TVHEIGHT_MIN 16
1725 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1726
1727 /* Compute the natural height for items. */
1728 static UINT
1729 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1730 {
1731 TEXTMETRICW tm;
1732 HDC hdc = GetDC(0);
1733 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1734 UINT height;
1735
1736 /* Height is the maximum of:
1737 * 16 (a hack because our fonts are tiny), and
1738 * The text height + border & margin, and
1739 * The size of the normal image list
1740 */
1741 GetTextMetricsW(hdc, &tm);
1742 SelectObject(hdc, hOldFont);
1743 ReleaseDC(0, hdc);
1744
1745 height = TVHEIGHT_MIN;
1746 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1747 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1748 if (height < infoPtr->normalImageHeight)
1749 height = infoPtr->normalImageHeight;
1750
1751 /* Round down, unless we support odd ("non even") heights. */
1752 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1753 height &= ~1;
1754
1755 return height;
1756 }
1757
1758 static LRESULT
1759 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1760 {
1761 HIMAGELIST himlOld = 0;
1762 int oldWidth = infoPtr->normalImageWidth;
1763 int oldHeight = infoPtr->normalImageHeight;
1764
1765 TRACE("%u,%p\n", type, himlNew);
1766
1767 switch (type)
1768 {
1769 case TVSIL_NORMAL:
1770 himlOld = infoPtr->himlNormal;
1771 infoPtr->himlNormal = himlNew;
1772
1773 if (himlNew)
1774 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1775 &infoPtr->normalImageHeight);
1776 else
1777 {
1778 infoPtr->normalImageWidth = 0;
1779 infoPtr->normalImageHeight = 0;
1780 }
1781
1782 break;
1783
1784 case TVSIL_STATE:
1785 himlOld = infoPtr->himlState;
1786 infoPtr->himlState = himlNew;
1787
1788 if (himlNew)
1789 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1790 &infoPtr->stateImageHeight);
1791 else
1792 {
1793 infoPtr->stateImageWidth = 0;
1794 infoPtr->stateImageHeight = 0;
1795 }
1796
1797 break;
1798
1799 default:
1800 ERR("unknown imagelist type %u\n", type);
1801 }
1802
1803 if (oldWidth != infoPtr->normalImageWidth ||
1804 oldHeight != infoPtr->normalImageHeight)
1805 {
1806 BOOL bRecalcVisible = FALSE;
1807
1808 if (oldHeight != infoPtr->normalImageHeight &&
1809 !infoPtr->bHeightSet)
1810 {
1811 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1812 bRecalcVisible = TRUE;
1813 }
1814
1815 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1816 infoPtr->normalImageWidth != infoPtr->uIndent)
1817 {
1818 infoPtr->uIndent = infoPtr->normalImageWidth;
1819 bRecalcVisible = TRUE;
1820 }
1821
1822 if (bRecalcVisible)
1823 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1824
1825 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1826 TREEVIEW_UpdateScrollBars(infoPtr);
1827 }
1828
1829 TREEVIEW_Invalidate(infoPtr, NULL);
1830
1831 return (LRESULT)himlOld;
1832 }
1833
1834 static LRESULT
1835 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1836 {
1837 INT prevHeight = infoPtr->uItemHeight;
1838
1839 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1840 if (newHeight == -1)
1841 {
1842 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1843 infoPtr->bHeightSet = FALSE;
1844 }
1845 else
1846 {
1847 if (newHeight == 0) newHeight = 1;
1848 infoPtr->uItemHeight = newHeight;
1849 infoPtr->bHeightSet = TRUE;
1850 }
1851
1852 /* Round down, unless we support odd ("non even") heights. */
1853 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1854 {
1855 infoPtr->uItemHeight &= ~1;
1856 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1857 }
1858
1859 if (infoPtr->uItemHeight != prevHeight)
1860 {
1861 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1862 TREEVIEW_UpdateScrollBars(infoPtr);
1863 TREEVIEW_Invalidate(infoPtr, NULL);
1864 }
1865
1866 return prevHeight;
1867 }
1868
1869 static LRESULT
1870 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1871 {
1872 TRACE("\n");
1873 return infoPtr->uItemHeight;
1874 }
1875
1876
1877 static LRESULT
1878 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1879 {
1880 TRACE("%p\n", infoPtr->hFont);
1881 return (LRESULT)infoPtr->hFont;
1882 }
1883
1884
1885 static INT CALLBACK
1886 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1887 {
1888 (void)unused;
1889
1890 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1891
1892 return 1;
1893 }
1894
1895 static LRESULT
1896 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1897 {
1898 UINT uHeight = infoPtr->uItemHeight;
1899
1900 TRACE("%p %i\n", hFont, bRedraw);
1901
1902 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1903
1904 DeleteObject(infoPtr->hBoldFont);
1905 DeleteObject(infoPtr->hUnderlineFont);
1906 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1907 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1908
1909 if (!infoPtr->bHeightSet)
1910 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1911
1912 if (uHeight != infoPtr->uItemHeight)
1913 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1914
1915 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1916
1917 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1918 TREEVIEW_UpdateScrollBars(infoPtr);
1919
1920 if (bRedraw)
1921 TREEVIEW_Invalidate(infoPtr, NULL);
1922
1923 return 0;
1924 }
1925
1926
1927 static LRESULT
1928 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1929 {
1930 TRACE("\n");
1931 return (LRESULT)infoPtr->clrLine;
1932 }
1933
1934 static LRESULT
1935 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1936 {
1937 COLORREF prevColor = infoPtr->clrLine;
1938
1939 TRACE("\n");
1940 infoPtr->clrLine = color;
1941 return (LRESULT)prevColor;
1942 }
1943
1944
1945 static LRESULT
1946 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1947 {
1948 TRACE("\n");
1949 return (LRESULT)infoPtr->clrText;
1950 }
1951
1952 static LRESULT
1953 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1954 {
1955 COLORREF prevColor = infoPtr->clrText;
1956
1957 TRACE("\n");
1958 infoPtr->clrText = color;
1959
1960 if (infoPtr->clrText != prevColor)
1961 TREEVIEW_Invalidate(infoPtr, NULL);
1962
1963 return (LRESULT)prevColor;
1964 }
1965
1966
1967 static LRESULT
1968 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1969 {
1970 TRACE("\n");
1971 return (LRESULT)infoPtr->clrBk;
1972 }
1973
1974 static LRESULT
1975 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1976 {
1977 COLORREF prevColor = infoPtr->clrBk;
1978
1979 TRACE("\n");
1980 infoPtr->clrBk = newColor;
1981
1982 if (newColor != prevColor)
1983 TREEVIEW_Invalidate(infoPtr, NULL);
1984
1985 return (LRESULT)prevColor;
1986 }
1987
1988
1989 static LRESULT
1990 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1991 {
1992 TRACE("\n");
1993 return (LRESULT)infoPtr->clrInsertMark;
1994 }
1995
1996 static LRESULT
1997 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1998 {
1999 COLORREF prevColor = infoPtr->clrInsertMark;
2000
2001 TRACE("%x\n", color);
2002 infoPtr->clrInsertMark = color;
2003
2004 return (LRESULT)prevColor;
2005 }
2006
2007
2008 static LRESULT
2009 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2010 {
2011 TRACE("%d %p\n", wParam, item);
2012
2013 if (!TREEVIEW_ValidItem(infoPtr, item))
2014 return 0;
2015
2016 infoPtr->insertBeforeorAfter = wParam;
2017 infoPtr->insertMarkItem = item;
2018
2019 TREEVIEW_Invalidate(infoPtr, NULL);
2020
2021 return 1;
2022 }
2023
2024
2025 /************************************************************************
2026 * Some serious braindamage here. lParam is a pointer to both the
2027 * input HTREEITEM and the output RECT.
2028 */
2029 static LRESULT
2030 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2031 {
2032 TREEVIEW_ITEM *item;
2033 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2034
2035 TRACE("\n");
2036
2037 if (pItem == NULL)
2038 return FALSE;
2039
2040 item = *pItem;
2041 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2042 return FALSE;
2043
2044 /*
2045 * If wParam is TRUE return the text size otherwise return
2046 * the whole item size
2047 */
2048 if (fTextRect)
2049 {
2050 /* Windows does not send TVN_GETDISPINFO here. */
2051
2052 lpRect->top = item->rect.top;
2053 lpRect->bottom = item->rect.bottom;
2054
2055 lpRect->left = item->textOffset;
2056 if (!item->textWidth)
2057 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2058
2059 lpRect->right = item->textOffset + item->textWidth + 4;
2060 }
2061 else
2062 {
2063 *lpRect = item->rect;
2064 }
2065
2066 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2067
2068 return TRUE;
2069 }
2070
2071 static inline LRESULT
2072 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2073 {
2074 /* Surprise! This does not take integral height into account. */
2075 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2076 return infoPtr->clientHeight / infoPtr->uItemHeight;
2077 }
2078
2079
2080 static LRESULT
2081 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2082 {
2083 TREEVIEW_ITEM *item = tvItem->hItem;
2084
2085 if (!TREEVIEW_ValidItem(infoPtr, item))
2086 {
2087 if (!item) return FALSE;
2088
2089 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2090 infoPtr = item->infoPtr;
2091 if (!TREEVIEW_ValidItem(infoPtr, item)) return FALSE;
2092 }
2093
2094 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2095
2096 if (tvItem->mask & TVIF_CHILDREN)
2097 {
2098 if (item->cChildren==I_CHILDRENCALLBACK)
2099 FIXME("I_CHILDRENCALLBACK not supported\n");
2100 tvItem->cChildren = item->cChildren;
2101 }
2102
2103 if (tvItem->mask & TVIF_HANDLE)
2104 tvItem->hItem = item;
2105
2106 if (tvItem->mask & TVIF_IMAGE)
2107 tvItem->iImage = item->iImage;
2108
2109 if (tvItem->mask & TVIF_INTEGRAL)
2110 tvItem->iIntegral = item->iIntegral;
2111
2112 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2113 tvItem->lParam = item->lParam;
2114
2115 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2116 tvItem->iSelectedImage = item->iSelectedImage;
2117
2118 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2119 tvItem->iExpandedImage = item->iExpandedImage;
2120
2121 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2122 tvItem->state = item->state;
2123
2124 if (tvItem->mask & TVIF_TEXT)
2125 {
2126 if (item->pszText == NULL)
2127 {
2128 if (tvItem->cchTextMax > 0)
2129 tvItem->pszText[0] = '\0';
2130 }
2131 else if (isW)
2132 {
2133 if (item->pszText == LPSTR_TEXTCALLBACKW)
2134 {
2135 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2136 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2137 }
2138 else
2139 {
2140 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2141 }
2142 }
2143 else
2144 {
2145 if (item->pszText == LPSTR_TEXTCALLBACKW)
2146 {
2147 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2148 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2149 }
2150 else
2151 {
2152 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2153 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2154 }
2155 }
2156 }
2157
2158 if (tvItem->mask & TVIF_STATEEX)
2159 {
2160 FIXME("Extended item state not supported, returning 0.\n");
2161 tvItem->uStateEx = 0;
2162 }
2163
2164 TRACE("item <%p>, txt %p, img %d, mask %x\n",
2165 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2166
2167 return TRUE;
2168 }
2169
2170 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2171 * which is wrong. */
2172 static LRESULT
2173 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2174 {
2175 TREEVIEW_ITEM *item;
2176 TREEVIEW_ITEM originalItem;
2177
2178 item = tvItem->hItem;
2179
2180 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2181 tvItem->mask);
2182
2183 if (!TREEVIEW_ValidItem(infoPtr, item))
2184 return FALSE;
2185
2186 /* store the original item values */
2187 originalItem = *item;
2188
2189 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2190 return FALSE;
2191
2192 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2193 if ((tvItem->mask & TVIF_TEXT
2194 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2195 && ISVISIBLE(item))
2196 {
2197 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2198 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2199 }
2200
2201 if (tvItem->mask != 0 && ISVISIBLE(item))
2202 {
2203 /* The refresh updates everything, but we can't wait until then. */
2204 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2205
2206 /* if any of the item's values changed and it's not a callback, redraw the item */
2207 if (item_changed(&originalItem, item, tvItem))
2208 {
2209 if (tvItem->mask & TVIF_INTEGRAL)
2210 {
2211 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2212 TREEVIEW_UpdateScrollBars(infoPtr);
2213
2214 TREEVIEW_Invalidate(infoPtr, NULL);
2215 }
2216 else
2217 {
2218 TREEVIEW_UpdateScrollBars(infoPtr);
2219 TREEVIEW_Invalidate(infoPtr, item);
2220 }
2221 }
2222 }
2223
2224 return TRUE;
2225 }
2226
2227 static LRESULT
2228 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2229 {
2230 TRACE("\n");
2231
2232 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2233 return 0;
2234
2235 return (item->state & mask);
2236 }
2237
2238 static LRESULT
2239 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2240 {
2241 TREEVIEW_ITEM *retval;
2242
2243 retval = 0;
2244
2245 /* handle all the global data here */
2246 switch (which)
2247 {
2248 case TVGN_CHILD: /* Special case: child of 0 is root */
2249 if (item)
2250 break;
2251 /* fall through */
2252 case TVGN_ROOT:
2253 retval = infoPtr->root->firstChild;
2254 break;
2255
2256 case TVGN_CARET:
2257 retval = infoPtr->selectedItem;
2258 break;
2259
2260 case TVGN_FIRSTVISIBLE:
2261 retval = infoPtr->firstVisible;
2262 break;
2263
2264 case TVGN_DROPHILITE:
2265 retval = infoPtr->dropItem;
2266 break;
2267
2268 case TVGN_LASTVISIBLE:
2269 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2270 break;
2271 }
2272
2273 if (retval)
2274 {
2275 TRACE("flags:%x, returns %p\n", which, retval);
2276 return (LRESULT)retval;
2277 }
2278
2279 if (item == TVI_ROOT) item = infoPtr->root;
2280
2281 if (!TREEVIEW_ValidItem(infoPtr, item))
2282 return FALSE;
2283
2284 switch (which)
2285 {
2286 case TVGN_NEXT:
2287 retval = item->nextSibling;
2288 break;
2289 case TVGN_PREVIOUS:
2290 retval = item->prevSibling;
2291 break;
2292 case TVGN_PARENT:
2293 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2294 break;
2295 case TVGN_CHILD:
2296 retval = item->firstChild;
2297 break;
2298 case TVGN_NEXTVISIBLE:
2299 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2300 break;
2301 case TVGN_PREVIOUSVISIBLE:
2302 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2303 break;
2304 default:
2305 TRACE("Unknown msg %x,item %p\n", which, item);
2306 break;
2307 }
2308
2309 TRACE("flags:%x, item %p;returns %p\n", which, item, retval);
2310 return (LRESULT)retval;
2311 }
2312
2313
2314 static LRESULT
2315 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2316 {
2317 TRACE(" %d\n", infoPtr->uNumItems);
2318 return (LRESULT)infoPtr->uNumItems;
2319 }
2320
2321 static VOID
2322 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2323 {
2324 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2325 {
2326 static const unsigned int state_table[] = { 0, 2, 1 };
2327
2328 unsigned int state;
2329
2330 state = STATEIMAGEINDEX(item->state);
2331 TRACE("state:%x\n", state);
2332 item->state &= ~TVIS_STATEIMAGEMASK;
2333
2334 if (state < 3)
2335 state = state_table[state];
2336
2337 item->state |= INDEXTOSTATEIMAGEMASK(state);
2338
2339 TRACE("state:%x\n", state);
2340 TREEVIEW_Invalidate(infoPtr, item);
2341 }
2342 }
2343
2344
2345 /* Painting *************************************************************/
2346
2347 /* Draw the lines and expand button for an item. Also draws one section
2348 * of the line from item's parent to item's parent's next sibling. */
2349 static void
2350 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2351 {
2352 LONG centerx, centery;
2353 BOOL lar = ((infoPtr->dwStyle
2354 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2355 > TVS_LINESATROOT);
2356 HBRUSH hbr, hbrOld;
2357 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2358
2359 if (!lar && item->iLevel == 0)
2360 return;
2361
2362 hbr = CreateSolidBrush(clrBk);
2363 hbrOld = SelectObject(hdc, hbr);
2364
2365 centerx = (item->linesOffset + item->stateOffset) / 2;
2366 centery = (item->rect.top + item->rect.bottom) / 2;
2367
2368 if (infoPtr->dwStyle & TVS_HASLINES)
2369 {
2370 HPEN hOldPen, hNewPen;
2371 HTREEITEM parent;
2372 LOGBRUSH lb;
2373
2374 /* Get a dotted grey pen */
2375 lb.lbStyle = BS_SOLID;
2376 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2377 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2378 hOldPen = SelectObject(hdc, hNewPen);
2379
2380 /* Make sure the center is on a dot (using +2 instead
2381 * of +1 gives us pixel-by-pixel compat with native) */
2382 centery = (centery + 2) & ~1;
2383
2384 MoveToEx(hdc, item->stateOffset, centery, NULL);
2385 LineTo(hdc, centerx - 1, centery);
2386
2387 if (item->prevSibling || item->parent != infoPtr->root)
2388 {
2389 MoveToEx(hdc, centerx, item->rect.top, NULL);
2390 LineTo(hdc, centerx, centery);
2391 }
2392
2393 if (item->nextSibling)
2394 {
2395 MoveToEx(hdc, centerx, centery, NULL);
2396 LineTo(hdc, centerx, item->rect.bottom + 1);
2397 }
2398
2399 /* Draw the line from our parent to its next sibling. */
2400 parent = item->parent;
2401 while (parent != infoPtr->root)
2402 {
2403 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2404
2405 if (parent->nextSibling
2406 /* skip top-levels unless TVS_LINESATROOT */
2407 && parent->stateOffset > parent->linesOffset)
2408 {
2409 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2410 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2411 }
2412
2413 parent = parent->parent;
2414 }
2415
2416 SelectObject(hdc, hOldPen);
2417 DeleteObject(hNewPen);
2418 }
2419
2420 /*
2421 * Display the (+/-) signs
2422 */
2423
2424 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2425 {
2426 if (item->cChildren)
2427 {
2428 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2429 if (theme)
2430 {
2431 RECT glyphRect = item->rect;
2432 glyphRect.left = item->linesOffset;
2433 glyphRect.right = item->stateOffset;
2434 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2435 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2436 &glyphRect, NULL);
2437 }
2438 else
2439 {
2440 LONG height = item->rect.bottom - item->rect.top;
2441 LONG width = item->stateOffset - item->linesOffset;
2442 LONG rectsize = min(height, width) / 4;
2443 /* plussize = ceil(rectsize * 3/4) */
2444 LONG plussize = (rectsize + 1) * 3 / 4;
2445
2446 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2447 HPEN old_pen = SelectObject(hdc, new_pen);
2448
2449 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2450 centerx + rectsize + 2, centery + rectsize + 2);
2451
2452 SelectObject(hdc, old_pen);
2453 DeleteObject(new_pen);
2454
2455 /* draw +/- signs with current text color */
2456 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2457 old_pen = SelectObject(hdc, new_pen);
2458
2459 if (height < 18 || width < 18)
2460 {
2461 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2462 LineTo(hdc, centerx + plussize, centery);
2463
2464 if (!(item->state & TVIS_EXPANDED) ||
2465 (item->state & TVIS_EXPANDPARTIAL))
2466 {
2467 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2468 LineTo(hdc, centerx, centery + plussize);
2469 }
2470 }
2471 else
2472 {
2473 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2474 centerx + plussize, centery + 2);
2475
2476 if (!(item->state & TVIS_EXPANDED) ||
2477 (item->state & TVIS_EXPANDPARTIAL))
2478 {
2479 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2480 centerx + 2, centery + plussize);
2481 SetPixel(hdc, centerx - 1, centery, clrBk);
2482 SetPixel(hdc, centerx + 1, centery, clrBk);
2483 }
2484 }
2485
2486 SelectObject(hdc, old_pen);
2487 DeleteObject(new_pen);
2488 }
2489 }
2490 }
2491 SelectObject(hdc, hbrOld);
2492 DeleteObject(hbr);
2493 }
2494
2495 static void
2496 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2497 {
2498 INT cditem;
2499 HFONT hOldFont;
2500 COLORREF oldTextColor, oldTextBkColor;
2501 int centery;
2502 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2503 NMTVCUSTOMDRAW nmcdhdr;
2504
2505 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2506
2507 /* - If item is drop target or it is selected and window is in focus -
2508 * use blue background (COLOR_HIGHLIGHT).
2509 * - If item is selected, window is not in focus, but it has style
2510 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2511 * - Otherwise - use background color
2512 */
2513 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2514 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2515 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2516 {
2517 if ((item->state & TVIS_DROPHILITED) || inFocus)
2518 {
2519 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2520 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2521 }
2522 else
2523 {
2524 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2525 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2526 }
2527 }
2528 else
2529 {
2530 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2531 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2532 nmcdhdr.clrText = comctl32_color.clrHighlight;
2533 else
2534 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2535 }
2536
2537 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2538
2539 /* The custom draw handler can query the text rectangle,
2540 * so get ready. */
2541 /* should already be known, set to 0 when changed */
2542 if (!item->textWidth)
2543 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2544
2545 cditem = 0;
2546
2547 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2548 {
2549 cditem = TREEVIEW_SendCustomDrawItemNotify
2550 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2551 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2552
2553 if (cditem & CDRF_SKIPDEFAULT)
2554 {
2555 SelectObject(hdc, hOldFont);
2556 return;
2557 }
2558 }
2559
2560 if (cditem & CDRF_NEWFONT)
2561 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2562
2563 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2564
2565 /* Set colors. Custom draw handler can change these so we do this after it. */
2566 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2567 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2568
2569 centery = (item->rect.top + item->rect.bottom) / 2;
2570
2571 /*
2572 * Display the images associated with this item
2573 */
2574 {
2575 INT imageIndex;
2576
2577 /* State images are displayed to the left of the Normal image
2578 * image number is in state; zero should be `display no image'.
2579 */
2580 imageIndex = STATEIMAGEINDEX(item->state);
2581
2582 if (infoPtr->himlState && imageIndex)
2583 {
2584 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2585 item->stateOffset,
2586 centery - infoPtr->stateImageHeight / 2,
2587 ILD_NORMAL);
2588 }
2589
2590 /* Now, draw the normal image; can be either selected,
2591 * non-selected or expanded image.
2592 */
2593
2594 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2595 {
2596 /* The item is currently selected */
2597 imageIndex = item->iSelectedImage;
2598 }
2599 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2600 {
2601 /* The item is currently not selected but expanded */
2602 imageIndex = item->iExpandedImage;
2603 }
2604 else
2605 {
2606 /* The item is not selected and not expanded */
2607 imageIndex = item->iImage;
2608 }
2609
2610 if (infoPtr->himlNormal)
2611 {
2612 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2613
2614 style |= item->state & TVIS_OVERLAYMASK;
2615
2616 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2617 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2618 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2619 style);
2620 }
2621 }
2622
2623
2624 /*
2625 * Display the text associated with this item
2626 */
2627
2628 /* Don't paint item's text if it's being edited */
2629 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2630 {
2631 if (item->pszText)
2632 {
2633 RECT rcText;
2634 UINT align;
2635 SIZE sz;
2636
2637 rcText.top = item->rect.top;
2638 rcText.bottom = item->rect.bottom;
2639 rcText.left = item->textOffset;
2640 rcText.right = rcText.left + item->textWidth + 4;
2641
2642 TRACE("drawing text %s at (%s)\n",
2643 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2644
2645 /* Draw it */
2646 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2647
2648 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2649 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2650 ETO_CLIPPED | ETO_OPAQUE,
2651 &rcText,
2652 item->pszText,
2653 lstrlenW(item->pszText),
2654 NULL);
2655 SetTextAlign(hdc, align);
2656
2657 /* Draw focus box around the selected item */
2658 if ((item == infoPtr->selectedItem) && inFocus)
2659 {
2660 DrawFocusRect(hdc,&rcText);
2661 }
2662 }
2663 }
2664
2665 /* Draw insertion mark if necessary */
2666
2667 if (infoPtr->insertMarkItem)
2668 TRACE("item:%d,mark:%p\n",
2669 TREEVIEW_GetItemIndex(infoPtr, item),
2670 infoPtr->insertMarkItem);
2671
2672 if (item == infoPtr->insertMarkItem)
2673 {
2674 HPEN hNewPen, hOldPen;
2675 int offset;
2676 int left, right;
2677
2678 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2679 hOldPen = SelectObject(hdc, hNewPen);
2680
2681 if (infoPtr->insertBeforeorAfter)
2682 offset = item->rect.bottom - 1;
2683 else
2684 offset = item->rect.top + 1;
2685
2686 left = item->textOffset - 2;
2687 right = item->textOffset + item->textWidth + 2;
2688
2689 MoveToEx(hdc, left, offset - 3, NULL);
2690 LineTo(hdc, left, offset + 4);
2691
2692 MoveToEx(hdc, left, offset, NULL);
2693 LineTo(hdc, right + 1, offset);
2694
2695 MoveToEx(hdc, right, offset + 3, NULL);
2696 LineTo(hdc, right, offset - 4);
2697
2698 SelectObject(hdc, hOldPen);
2699 DeleteObject(hNewPen);
2700 }
2701
2702 if (cditem & CDRF_NOTIFYPOSTPAINT)
2703 {
2704 cditem = TREEVIEW_SendCustomDrawItemNotify
2705 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2706 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2707 }
2708
2709 /* Restore the hdc state */
2710 SetTextColor(hdc, oldTextColor);
2711 SetBkColor(hdc, oldTextBkColor);
2712 SelectObject(hdc, hOldFont);
2713 }
2714
2715 /* Computes treeHeight and treeWidth and updates the scroll bars.
2716 */
2717 static void
2718 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2719 {
2720 TREEVIEW_ITEM *item;
2721 HWND hwnd = infoPtr->hwnd;
2722 BOOL vert = FALSE;
2723 BOOL horz = FALSE;
2724 SCROLLINFO si;
2725 LONG scrollX = infoPtr->scrollX;
2726
2727 infoPtr->treeWidth = 0;
2728 infoPtr->treeHeight = 0;
2729
2730 /* We iterate through all visible items in order to get the tree height
2731 * and width */
2732 item = infoPtr->root->firstChild;
2733
2734 while (item != NULL)
2735 {
2736 if (ISVISIBLE(item))
2737 {
2738 /* actually we draw text at textOffset + 2 */
2739 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2740 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2741
2742 /* This is scroll-adjusted, but we fix this below. */
2743 infoPtr->treeHeight = item->rect.bottom;
2744 }
2745
2746 item = TREEVIEW_GetNextListItem(infoPtr, item);
2747 }
2748
2749 /* Fix the scroll adjusted treeHeight and treeWidth. */
2750 if (infoPtr->root->firstChild)
2751 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2752
2753 infoPtr->treeWidth += infoPtr->scrollX;
2754
2755 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2756
2757 /* Adding one scroll bar may take up enough space that it forces us
2758 * to add the other as well. */
2759 if (infoPtr->treeHeight > infoPtr->clientHeight)
2760 {
2761 vert = TRUE;
2762
2763 if (infoPtr->treeWidth
2764 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2765 horz = TRUE;
2766 }
2767 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2768 horz = TRUE;
2769
2770 if (!vert && horz && infoPtr->treeHeight
2771 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2772 vert = TRUE;
2773
2774 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2775
2776 si.cbSize = sizeof(SCROLLINFO);
2777 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2778 si.nMin = 0;
2779
2780 if (vert)
2781 {
2782 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2783 if ( si.nPage && NULL != infoPtr->firstVisible)
2784 {
2785 si.nPos = infoPtr->firstVisible->visibleOrder;
2786 si.nMax = infoPtr->maxVisibleOrder - 1;
2787
2788 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2789
2790 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2791 ShowScrollBar(hwnd, SB_VERT, TRUE);
2792 infoPtr->uInternalStatus |= TV_VSCROLL;
2793 }
2794 else
2795 {
2796 if (infoPtr->uInternalStatus & TV_VSCROLL)
2797 ShowScrollBar(hwnd, SB_VERT, FALSE);
2798 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2799 }
2800 }
2801 else
2802 {
2803 if (infoPtr->uInternalStatus & TV_VSCROLL)
2804 ShowScrollBar(hwnd, SB_VERT, FALSE);
2805 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2806 }
2807
2808 if (horz)
2809 {
2810 si.nPage = infoPtr->clientWidth;
2811 si.nPos = infoPtr->scrollX;
2812 si.nMax = infoPtr->treeWidth - 1;
2813
2814 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2815 {
2816 si.nPos = si.nMax - max( si.nPage-1, 0 );
2817 scrollX = si.nPos;
2818 }
2819
2820 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2821 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2822 infoPtr->uInternalStatus |= TV_HSCROLL;
2823
2824 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2825 TREEVIEW_HScroll(infoPtr,
2826 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2827 }
2828 else
2829 {
2830 if (infoPtr->uInternalStatus & TV_HSCROLL)
2831 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2832 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2833
2834 scrollX = 0;
2835 if (infoPtr->scrollX != 0)
2836 {
2837 TREEVIEW_HScroll(infoPtr,
2838 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2839 }
2840 }
2841
2842 if (!horz)
2843 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2844 }
2845
2846 static void
2847 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2848 {
2849 HBRUSH hBrush;
2850 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2851
2852 hBrush = CreateSolidBrush(clrBk);
2853 FillRect(hdc, rc, hBrush);
2854 DeleteObject(hBrush);
2855 }
2856
2857 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2858 static LRESULT
2859 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2860 {
2861 RECT rect;
2862
2863 TRACE("%p\n", infoPtr);
2864
2865 GetClientRect(infoPtr->hwnd, &rect);
2866 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2867
2868 return 1;
2869 }
2870
2871 static void
2872 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2873 {
2874 HWND hwnd = infoPtr->hwnd;
2875 RECT rect = *rc;
2876 TREEVIEW_ITEM *item;
2877
2878 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2879 {
2880 TRACE("empty window\n");
2881 return;
2882 }
2883
2884 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2885 hdc, rect);
2886
2887 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2888 {
2889 ReleaseDC(hwnd, hdc);
2890 return;
2891 }
2892
2893 for (item = infoPtr->root->firstChild;
2894 item != NULL;
2895 item = TREEVIEW_GetNextListItem(infoPtr, item))
2896 {
2897 if (ISVISIBLE(item))
2898 {
2899 /* Avoid unneeded calculations */
2900 if (item->rect.top > rect.bottom)
2901 break;
2902 if (item->rect.bottom < rect.top)
2903 continue;
2904
2905 TREEVIEW_DrawItem(infoPtr, hdc, item);
2906 }
2907 }
2908
2909 TREEVIEW_UpdateScrollBars(infoPtr);
2910
2911 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2912 infoPtr->cdmode =
2913 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2914 }
2915
2916 static inline void
2917 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2918 {
2919 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2920 }
2921
2922 static void
2923 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2924 {
2925 if (item)
2926 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2927 else
2928 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2929 }
2930
2931 static LRESULT
2932 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2933 {
2934 HDC hdc;
2935 PAINTSTRUCT ps;
2936 RECT rc;
2937
2938 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2939
2940 if (hdc_ref)
2941 {
2942 hdc = hdc_ref;
2943 GetClientRect(infoPtr->hwnd, &rc);
2944 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2945 }
2946 else
2947 {
2948 hdc = BeginPaint(infoPtr->hwnd, &ps);
2949 rc = ps.rcPaint;
2950 if(ps.fErase)
2951 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2952 }
2953
2954 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2955 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2956
2957 if (!hdc_ref)
2958 EndPaint(infoPtr->hwnd, &ps);
2959
2960 return 0;
2961 }
2962
2963 static LRESULT
2964 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
2965 {
2966 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
2967
2968 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
2969 return 0;
2970
2971 if (options & PRF_ERASEBKGND)
2972 TREEVIEW_EraseBackground(infoPtr, hdc);
2973
2974 if (options & PRF_CLIENT)
2975 {
2976 RECT rc;
2977 GetClientRect(infoPtr->hwnd, &rc);
2978 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2979 }
2980
2981 return 0;
2982 }
2983
2984 /* Sorting **************************************************************/
2985
2986 /***************************************************************************
2987 * Forward the DPA local callback to the treeview owner callback
2988 */
2989 static INT WINAPI
2990 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2991 const TVSORTCB *pCallBackSort)
2992 {
2993 /* Forward the call to the client-defined callback */
2994 return pCallBackSort->lpfnCompare(first->lParam,
2995 second->lParam,
2996 pCallBackSort->lParam);
2997 }
2998
2999 /***************************************************************************
3000 * Treeview native sort routine: sort on item text.
3001 */
3002 static INT WINAPI
3003 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3004 const TREEVIEW_INFO *infoPtr)
3005 {
3006 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3007 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3008
3009 if(first->pszText && second->pszText)
3010 return lstrcmpiW(first->pszText, second->pszText);
3011 else if(first->pszText)
3012 return -1;
3013 else if(second->pszText)
3014 return 1;
3015 else
3016 return 0;
3017 }
3018
3019 /* Returns the number of physical children belonging to item. */
3020 static INT
3021 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3022 {
3023 INT cChildren = 0;
3024 HTREEITEM hti;
3025
3026 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3027 cChildren++;
3028
3029 return cChildren;
3030 }
3031
3032 /* Returns a DPA containing a pointer to each physical child of item in
3033 * sibling order. If item has no children, an empty DPA is returned. */
3034 static HDPA
3035 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3036 {
3037 HTREEITEM child;
3038
3039 HDPA list = DPA_Create(8);
3040 if (list == 0) return NULL;
3041
3042 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3043 {
3044 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3045 {
3046 DPA_Destroy(list);
3047 return NULL;
3048 }
3049 }
3050
3051 return list;
3052 }
3053
3054 /***************************************************************************
3055 * Setup the treeview structure with regards of the sort method
3056 * and sort the children of the TV item specified in lParam
3057 * fRecurse: currently unused. Should be zero.
3058 * parent: if pSort!=NULL, should equal pSort->hParent.
3059 * otherwise, item which child items are to be sorted.
3060 * pSort: sort method info. if NULL, sort on item text.
3061 * if non-NULL, sort on item's lParam content, and let the
3062 * application decide what that means. See also TVM_SORTCHILDRENCB.
3063 */
3064
3065 static LRESULT
3066 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3067 LPTVSORTCB pSort)
3068 {
3069 INT cChildren;
3070 PFNDPACOMPARE pfnCompare;
3071 LPARAM lpCompare;
3072
3073 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3074 if (parent == TVI_ROOT || parent == NULL)
3075 parent = infoPtr->root;
3076
3077 /* Check for a valid handle to the parent item */
3078 if (!TREEVIEW_ValidItem(infoPtr, parent))
3079 {
3080 ERR("invalid item hParent=%p\n", parent);
3081 return FALSE;
3082 }
3083
3084 if (pSort)
3085 {
3086 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3087 lpCompare = (LPARAM)pSort;
3088 }
3089 else
3090 {
3091 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3092 lpCompare = (LPARAM)infoPtr;
3093 }
3094
3095 cChildren = TREEVIEW_CountChildren(parent);
3096
3097 /* Make sure there is something to sort */
3098 if (cChildren > 1)
3099 {
3100 /* TREEVIEW_ITEM rechaining */
3101 INT count = 0;
3102 HTREEITEM item = 0;
3103 HTREEITEM nextItem = 0;
3104 HTREEITEM prevItem = 0;
3105
3106 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3107
3108 if (sortList == NULL)
3109 return FALSE;
3110
3111 /* let DPA sort the list */
3112 DPA_Sort(sortList, pfnCompare, lpCompare);
3113
3114 /* The order of DPA entries has been changed, so fixup the
3115 * nextSibling and prevSibling pointers. */
3116
3117 item = DPA_GetPtr(sortList, count++);
3118 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3119 {
3120 /* link the two current item together */
3121 item->nextSibling = nextItem;
3122 nextItem->prevSibling = item;
3123
3124 if (prevItem == NULL)
3125 {
3126 /* this is the first item, update the parent */
3127 parent->firstChild = item;
3128 item->prevSibling = NULL;
3129 }
3130 else
3131 {
3132 /* fix the back chaining */
3133 item->prevSibling = prevItem;
3134 }
3135
3136 /* get ready for the next one */
3137 prevItem = item;
3138 item = nextItem;
3139 }
3140
3141 /* the last item is pointed to by item and never has a sibling */
3142 item->nextSibling = NULL;
3143 parent->lastChild = item;
3144
3145 DPA_Destroy(sortList);
3146
3147 TREEVIEW_VerifyTree(infoPtr);
3148
3149 if (parent->state & TVIS_EXPANDED)
3150 {
3151 int visOrder = infoPtr->firstVisible->visibleOrder;
3152
3153 if (parent == infoPtr->root)
3154 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3155 else
3156 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3157
3158 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3159 {
3160 TREEVIEW_ITEM *item;
3161
3162 for (item = infoPtr->root->firstChild; item != NULL;
3163 item = TREEVIEW_GetNextListItem(infoPtr, item))
3164 {
3165 if (item->visibleOrder == visOrder)
3166 break;
3167 }
3168
3169 if (!item) item = parent->firstChild;
3170 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3171 }
3172
3173 TREEVIEW_Invalidate(infoPtr, NULL);
3174 }
3175
3176 return TRUE;
3177 }
3178 return FALSE;
3179 }
3180
3181
3182 /***************************************************************************
3183 * Setup the treeview structure with regards of the sort method
3184 * and sort the children of the TV item specified in lParam
3185 */
3186 static LRESULT
3187 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3188 {
3189 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3190 }
3191
3192
3193 /***************************************************************************
3194 * Sort the children of the TV item specified in lParam.
3195 */
3196 static LRESULT
3197 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3198 {
3199 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3200 }
3201
3202
3203 /* Expansion/Collapse ***************************************************/
3204
3205 static BOOL
3206 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3207 UINT action)
3208 {
3209 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3210 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3211 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3212 0, item);
3213 }
3214
3215 static VOID
3216 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3217 UINT action)
3218 {
3219 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3220 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3221 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3222 0, item);
3223 }
3224
3225
3226 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3227 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3228 static BOOL
3229 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3230 BOOL bRemoveChildren, BOOL bUser)
3231 {
3232 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3233 BOOL bSetSelection, bSetFirstVisible;
3234 RECT scrollRect;
3235 LONG scrollDist = 0;
3236 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3237 BOOL wasExpanded;
3238
3239 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3240
3241 if (!TREEVIEW_HasChildren(infoPtr, item))
3242 return FALSE;
3243
3244 if (bUser)
3245 TREEVIEW_SendExpanding(infoPtr, item, action);
3246
3247 if (item->firstChild == NULL)
3248 return FALSE;
3249
3250 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3251 item->state &= ~TVIS_EXPANDED;
3252
3253 if (wasExpanded && bUser)
3254 TREEVIEW_SendExpanded(infoPtr, item, action);
3255
3256 bSetSelection = (infoPtr->selectedItem != NULL
3257 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3258
3259 bSetFirstVisible = (infoPtr->firstVisible != NULL
3260 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3261
3262 tmpItem = item;
3263 while (tmpItem)
3264 {
3265 if (tmpItem->nextSibling)
3266 {
3267 nextItem = tmpItem->nextSibling;
3268 break;
3269 }
3270 tmpItem = tmpItem->parent;
3271 }
3272
3273 if (nextItem)
3274 scrollDist = nextItem->rect.top;
3275
3276 if (bRemoveChildren)
3277 {
3278 INT old_cChildren = item->cChildren;
3279 TRACE("TVE_COLLAPSERESET\n");
3280 item->state &= ~TVIS_EXPANDEDONCE;
3281 TREEVIEW_RemoveAllChildren(infoPtr, item);
3282 item->cChildren = old_cChildren;
3283 }
3284
3285 if (item->firstChild)
3286 {
3287 TREEVIEW_ITEM *i, *sibling;
3288
3289 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3290
3291 for (i = item->firstChild; i != sibling;
3292 i = TREEVIEW_GetNextListItem(infoPtr, i))
3293 {
3294 i->visibleOrder = -1;
3295 }
3296 }
3297
3298 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3299
3300 if (nextItem)
3301 scrollDist = -(scrollDist - nextItem->rect.top);
3302
3303 if (bSetSelection)
3304 {
3305 /* Don't call DoSelectItem, it sends notifications. */
3306 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3307 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3308 item->state |= TVIS_SELECTED;
3309 infoPtr->selectedItem = item;
3310 }
3311
3312 TREEVIEW_UpdateScrollBars(infoPtr);
3313
3314 scrollRect.left = 0;
3315 scrollRect.right = infoPtr->clientWidth;
3316 scrollRect.bottom = infoPtr->clientHeight;
3317
3318 if (nextItem)
3319 {
3320 scrollRect.top = nextItem->rect.top;
3321
3322 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3323 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3324 TREEVIEW_Invalidate(infoPtr, item);
3325 } else {
3326 scrollRect.top = item->rect.top;
3327 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3328 }
3329
3330 TREEVIEW_SetFirstVisible(infoPtr,
3331 bSetFirstVisible ? item : infoPtr->firstVisible,
3332 TRUE);
3333
3334 return wasExpanded;
3335 }
3336
3337 static BOOL
3338 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3339 BOOL partial, BOOL user)
3340 {
3341 LONG scrollDist;
3342 LONG orgNextTop = 0;
3343 RECT scrollRect;
3344 TREEVIEW_ITEM *nextItem, *tmpItem;
3345 BOOL sendsNotifications;
3346
3347 TRACE("(%p, %p, partial=%d, %d\n", infoPtr, item, partial, user);
3348
3349 if (!TREEVIEW_HasChildren(infoPtr, item))
3350 return FALSE;
3351
3352 tmpItem = item; nextItem = NULL;
3353 while (tmpItem)
3354 {
3355 if (tmpItem->nextSibling)
3356 {
3357 nextItem = tmpItem->nextSibling;
3358 break;
3359 }
3360 tmpItem = tmpItem->parent;
3361 }
3362
3363 if (nextItem)
3364 orgNextTop = nextItem->rect.top;
3365
3366 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3367
3368 sendsNotifications = user || ((item->cChildren != 0) &&
3369 !(item->state & TVIS_EXPANDEDONCE));
3370 if (sendsNotifications)
3371 {
3372 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3373 {
3374 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3375 return FALSE;
3376 }
3377 }
3378 if (!item->firstChild)
3379 return FALSE;
3380
3381 item->state |= TVIS_EXPANDED;
3382
3383 if (partial)
3384 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3385
3386 if (ISVISIBLE(item))
3387 {
3388 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3389 TREEVIEW_UpdateSubTree(infoPtr, item);
3390 TREEVIEW_UpdateScrollBars(infoPtr);
3391
3392 scrollRect.left = 0;
3393 scrollRect.bottom = infoPtr->treeHeight;
3394 scrollRect.right = infoPtr->clientWidth;
3395 if (nextItem)
3396 {
3397 scrollDist = nextItem->rect.top - orgNextTop;
3398 scrollRect.top = orgNextTop;
3399
3400 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3401 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3402 TREEVIEW_Invalidate (infoPtr, item);
3403 } else {
3404 scrollRect.top = item->rect.top;
3405 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3406 }
3407
3408 /* Scroll up so that as many children as possible are visible.
3409 * This fails when expanding causes an HScroll bar to appear, but we
3410 * don't know that yet, so the last item is obscured. */
3411 if (item->firstChild != NULL)
3412 {
3413 int nChildren = item->lastChild->visibleOrder
3414 - item->firstChild->visibleOrder + 1;
3415
3416 int visible_pos = item->visibleOrder
3417 - infoPtr->firstVisible->visibleOrder;
3418
3419 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3420
3421 if (visible_pos > 0 && nChildren > rows_below)
3422 {
3423 int scroll = nChildren - rows_below;
3424
3425 if (scroll > visible_pos)
3426 scroll = visible_pos;
3427
3428 if (scroll > 0)
3429 {
3430 TREEVIEW_ITEM *newFirstVisible
3431 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3432 scroll);
3433
3434
3435 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3436 }
3437 }
3438 }
3439 }
3440
3441 if (sendsNotifications) {
3442 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3443 item->state |= TVIS_EXPANDEDONCE;
3444 }
3445
3446 return TRUE;
3447 }
3448
3449 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3450 to mouse messages and TVM_SELECTITEM.
3451
3452 selection - previously selected item, used to collapse a part of a tree
3453 item - new selected item
3454 */
3455 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3456 HTREEITEM selection, HTREEITEM item)
3457 {
3458 TREEVIEW_ITEM *SelItem;
3459
3460 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3461
3462 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3463
3464 /*
3465 * Close the previous selection all the way to the root
3466 * as long as the new selection is not a child
3467 */
3468 if(selection && (selection != item))
3469 {
3470 BOOL closeit = TRUE;
3471 SelItem = item;
3472
3473 /* determine if the hitItem is a child of the currently selected item */
3474 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3475 (SelItem->parent != infoPtr->root))
3476 {
3477 closeit = (SelItem != selection);
3478 SelItem = SelItem->parent;
3479 }
3480
3481 if(closeit)
3482 {
3483 if(TREEVIEW_ValidItem(infoPtr, selection))
3484 SelItem = selection;
3485
3486 while(SelItem && (SelItem != item) && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3487 SelItem->parent != infoPtr->root)
3488 {
3489 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
3490 SelItem = SelItem->parent;
3491 }
3492 }
3493 }
3494
3495 /*
3496 * Expand the current item
3497 */
3498 TREEVIEW_Expand(infoPtr, item, FALSE, FALSE);
3499 }
3500
3501 static BOOL
3502 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3503 {
3504 TRACE("item=%p, user=%d\n", item, user);
3505
3506 if (item->state & TVIS_EXPANDED)
3507 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3508 else
3509 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3510 }
3511
3512 static VOID
3513 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3514 {
3515 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3516
3517 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3518 {
3519 if (TREEVIEW_HasChildren(infoPtr, item))
3520 TREEVIEW_ExpandAll(infoPtr, item);
3521 }
3522 }
3523
3524 /* Note:If the specified item is the child of a collapsed parent item,
3525 the parent's list of child items is (recursively) expanded to reveal the
3526 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3527 know if it also applies here.
3528 */
3529
3530 static LRESULT
3531 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3532 {
3533 if (!TREEVIEW_ValidItem(infoPtr, item))
3534 return 0;
3535
3536 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3537 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3538 flag, item->state);
3539
3540 switch (flag & TVE_TOGGLE)
3541 {
3542 case TVE_COLLAPSE:
3543 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3544 FALSE);
3545
3546 case TVE_EXPAND:
3547 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3548 FALSE);
3549
3550 case TVE_TOGGLE:
3551 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3552
3553 default:
3554 return 0;
3555 }
3556 }
3557
3558 /* Hit-Testing **********************************************************/
3559
3560 static TREEVIEW_ITEM *
3561 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3562 {
3563 TREEVIEW_ITEM *item;
3564 LONG row;
3565
3566 if (!infoPtr->firstVisible)
3567 return NULL;
3568
3569 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3570
3571 for (item = infoPtr->firstVisible; item != NULL;
3572 item = TREEVIEW_GetNextListItem(infoPtr, item))
3573 {
3574 if (row >= item->visibleOrder
3575 && row < item->visibleOrder + item->iIntegral)
3576 break;
3577 }
3578
3579 return item;
3580 }
3581
3582 static LRESULT
3583 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3584 {
3585 TREEVIEW_ITEM *item;
3586 RECT rect;
3587 UINT status;
3588 LONG x, y;
3589
3590 lpht->hItem = 0;
3591 GetClientRect(infoPtr->hwnd, &rect);
3592 status = 0;
3593 x = lpht->pt.x;
3594 y = lpht->pt.y;
3595
3596 if (x < rect.left)
3597 {
3598 status |= TVHT_TOLEFT;
3599 }
3600 else if (x > rect.right)
3601 {
3602 status |= TVHT_TORIGHT;
3603 }
3604
3605 if (y < rect.top)
3606 {
3607 status |= TVHT_ABOVE;
3608 }
3609 else if (y > rect.bottom)
3610 {
3611 status |= TVHT_BELOW;
3612 }
3613
3614 if (status)
3615 {
3616 lpht->flags = status;
3617 return 0;
3618 }
3619
3620 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3621 if (!item)
3622 {
3623 lpht->flags = TVHT_NOWHERE;
3624 return 0;
3625 }
3626
3627 if (x >= item->textOffset + item->textWidth)
3628 {
3629 lpht->flags = TVHT_ONITEMRIGHT;
3630 }
3631 else if (x >= item->textOffset)
3632 {
3633 lpht->flags = TVHT_ONITEMLABEL;
3634 }
3635 else if (x >= item->imageOffset)
3636 {
3637 lpht->flags = TVHT_ONITEMICON;
3638 }
3639 else if (x >= item->stateOffset)
3640 {
3641 lpht->flags = TVHT_ONITEMSTATEICON;
3642 }
3643 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3644 {
3645 lpht->flags = TVHT_ONITEMBUTTON;
3646 }
3647 else
3648 {
3649 lpht->flags = TVHT_ONITEMINDENT;
3650 }
3651
3652 lpht->hItem = item;
3653 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3654
3655 return (LRESULT)item;
3656 }
3657
3658 /* Item Label Editing ***************************************************/
3659
3660 static LRESULT
3661 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3662 {
3663 return (LRESULT)infoPtr->hwndEdit;
3664 }
3665
3666 static LRESULT CALLBACK
3667 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3668 {
3669 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3670 BOOL bCancel = FALSE;
3671 LRESULT rc;
3672
3673 switch (uMsg)
3674 {
3675 case WM_PAINT:
3676 TRACE("WM_PAINT start\n");
3677 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3678 lParam);
3679 TRACE("WM_PAINT done\n");
3680 return rc;
3681
3682 case WM_KILLFOCUS:
3683 if (infoPtr->bIgnoreEditKillFocus)
3684 return TRUE;
3685 break;
3686
3687 case WM_DESTROY:
3688 {
3689 WNDPROC editProc = infoPtr->wpEditOrig;
3690 infoPtr->wpEditOrig = 0;
3691 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3692 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3693 }
3694
3695 case WM_GETDLGCODE:
3696 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3697
3698 case WM_KEYDOWN:
3699 if (wParam == VK_ESCAPE)
3700 {
3701 bCancel = TRUE;
3702 break;
3703 }
3704 else if (wParam == VK_RETURN)
3705 {
3706 break;
3707 }
3708
3709 /* fall through */
3710 default:
3711 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3712 }
3713
3714 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3715 /* eg. Using a messagebox */
3716
3717 infoPtr->bIgnoreEditKillFocus = TRUE;
3718 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3719 infoPtr->bIgnoreEditKillFocus = FALSE;
3720
3721 return 0;
3722 }
3723
3724
3725 /* should handle edit control messages here */
3726
3727 static LRESULT
3728 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3729 {
3730 TRACE("code=%x, id=%x, handle=%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3731
3732 switch (HIWORD(wParam))
3733 {
3734 case EN_UPDATE:
3735 {
3736 /*
3737 * Adjust the edit window size
3738 */
3739 WCHAR buffer[1024];
3740 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3741 HDC hdc = GetDC(infoPtr->hwndEdit);
3742 SIZE sz;
3743 HFONT hFont, hOldFont = 0;
3744
3745 TRACE("edit=%p\n", infoPtr->hwndEdit);
3746
3747 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3748
3749 infoPtr->bLabelChanged = TRUE;
3750
3751 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3752
3753 /* Select font to get the right dimension of the string */
3754 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3755
3756 if (hFont != 0)
3757 {
3758 hOldFont = SelectObject(hdc, hFont);
3759 }
3760
3761 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3762 {
3763 TEXTMETRICW textMetric;
3764
3765 /* Add Extra spacing for the next character */
3766 GetTextMetricsW(hdc, &textMetric);
3767 sz.cx += (textMetric.tmMaxCharWidth * 2);
3768
3769 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3770 sz.cx = min(sz.cx,
3771 infoPtr->clientWidth - editItem->textOffset + 2);
3772
3773 SetWindowPos(infoPtr->hwndEdit,
3774 HWND_TOP,
3775 0,
3776 0,
3777 sz.cx,
3778 editItem->rect.bottom - editItem->rect.top + 3,
3779 SWP_NOMOVE | SWP_DRAWFRAME);
3780 }
3781
3782 if (hFont != 0)
3783 {
3784 SelectObject(hdc, hOldFont);
3785 }
3786
3787 ReleaseDC(infoPtr->hwnd, hdc);
3788 break;
3789 }
3790 case EN_KILLFOCUS:
3791 /* apparently we should respect passed handle value */
3792 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3793
3794 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3795 break;
3796
3797 default:
3798 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3799 }
3800
3801 return 0;
3802 }
3803
3804 static HWND
3805 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3806 {
3807 HWND hwnd = infoPtr->hwnd;
3808 HWND hwndEdit;
3809 SIZE sz;
3810 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3811 HDC hdc;
3812 HFONT hOldFont=0;
3813 TEXTMETRICW textMetric;
3814
3815 TRACE("%p %p\n", hwnd, hItem);
3816 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3817 return NULL;
3818
3819 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3820 return NULL;
3821
3822 if (infoPtr->hwndEdit)
3823 return infoPtr->hwndEdit;
3824
3825 infoPtr->bLabelChanged = FALSE;
3826
3827 /* make edit item visible */
3828 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3829
3830 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3831
3832 hdc = GetDC(hwnd);
3833 /* Select the font to get appropriate metric dimensions */
3834 if (infoPtr->hFont != 0)
3835 {
3836 hOldFont = SelectObject(hdc, infoPtr->hFont);
3837 }
3838
3839 /* Get string length in pixels */
3840 if (hItem->pszText)
3841 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3842 &sz);
3843 else
3844 GetTextExtentPoint32A(hdc, "", 0, &sz);
3845
3846 /* Add Extra spacing for the next character */
3847 GetTextMetricsW(hdc, &textMetric);
3848 sz.cx += (textMetric.tmMaxCharWidth * 2);
3849
3850 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3851 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3852
3853 if (infoPtr->hFont != 0)
3854 {
3855 SelectObject(hdc, hOldFont);
3856 }
3857
3858 ReleaseDC(hwnd, hdc);
3859
3860 infoPtr->editItem = hItem;
3861
3862 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3863 WC_EDITW,
3864 0,
3865 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3866 WS_CLIPSIBLINGS | ES_WANTRETURN |
3867 ES_LEFT, hItem->textOffset - 2,
3868 hItem->rect.top - 1, sz.cx + 3,
3869 hItem->rect.bottom -
3870 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3871 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3872
3873 infoPtr->hwndEdit = hwndEdit;
3874
3875 /* Get a 2D border. */
3876 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3877 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3878 SetWindowLongW(hwndEdit, GWL_STYLE,
3879 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3880
3881 SendMessageW(hwndEdit, WM_SETFONT,
3882 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3883
3884 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3885 (DWORD_PTR)
3886 TREEVIEW_Edit_SubclassProc);
3887 if (hItem->pszText)
3888 SetWindowTextW(hwndEdit, hItem->pszText);
3889
3890 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3891 {
3892 DestroyWindow(hwndEdit);
3893 infoPtr->hwndEdit = 0;
3894 infoPtr->editItem = NULL;
3895 return NULL;
3896 }
3897
3898 SetFocus(hwndEdit);
3899 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3900 ShowWindow(hwndEdit, SW_SHOW);
3901
3902 return hwndEdit;
3903 }
3904
3905
3906 static LRESULT
3907 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3908 {
3909 HWND hwnd = infoPtr->hwnd;
3910 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3911 NMTVDISPINFOW tvdi;
3912 BOOL bCommit;
3913 WCHAR tmpText[1024] = { '\0' };
3914 WCHAR *newText = tmpText;
3915 int iLength = 0;
3916
3917 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3918
3919 tvdi.hdr.hwndFrom = hwnd;
3920 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3921 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3922 tvdi.item.mask = 0;
3923 tvdi.item.hItem = editedItem;
3924 tvdi.item.state = editedItem->state;
3925 tvdi.item.lParam = editedItem->lParam;
3926
3927 if (!bCancel)
3928 {
3929 if (!infoPtr->bNtfUnicode)
3930 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3931 else
3932 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3933
3934 if (iLength >= 1023)
3935 {
3936 ERR("Insufficient space to retrieve new item label\n");
3937 }
3938
3939 tvdi.item.mask = TVIF_TEXT;
3940 tvdi.item.pszText = tmpText;
3941 tvdi.item.cchTextMax = iLength + 1;
3942 }
3943 else
3944 {
3945 tvdi.item.pszText = NULL;
3946 tvdi.item.cchTextMax = 0;
3947 }
3948
3949 bCommit = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
3950
3951 if (!bCancel && bCommit) /* Apply the changes */
3952 {
3953 if (!infoPtr->bNtfUnicode)
3954 {
3955 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3956 newText = Alloc(len * sizeof(WCHAR));
3957 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3958 iLength = len - 1;
3959 }
3960
3961 if (strcmpW(newText, editedItem->pszText) != 0)
3962 {
3963 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
3964 if (ptr == NULL)
3965 {
3966 ERR("OutOfMemory, cannot allocate space for label\n");
3967 if(newText != tmpText) Free(newText);
3968 DestroyWindow(infoPtr->hwndEdit);
3969 infoPtr->hwndEdit = 0;
3970 infoPtr->editItem = NULL;
3971 return FALSE;
3972 }
3973 else
3974 {
3975 editedItem->pszText = ptr;
3976 editedItem->cchTextMax = iLength + 1;
3977 strcpyW(editedItem->pszText, newText);
3978 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
3979 }
3980 }
3981 if(newText != tmpText) Free(newText);
3982 }
3983
3984 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3985 DestroyWindow(infoPtr->hwndEdit);
3986 infoPtr->hwndEdit = 0;
3987 infoPtr->editItem = NULL;
3988 return TRUE;
3989 }
3990
3991 static LRESULT
3992 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3993 {
3994 if (wParam != TV_EDIT_TIMER)
3995 {
3996 ERR("got unknown timer\n");
3997 return 1;
3998 }
3999
4000 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4001 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4002
4003 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4004
4005 return 0;
4006 }
4007
4008
4009 /* Mouse Tracking/Drag **************************************************/
4010
4011 /***************************************************************************
4012 * This is quite unusual piece of code, but that's how it's implemented in
4013 * Windows.
4014 */
4015 static LRESULT
4016 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4017 {
4018 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4019 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4020 RECT r;
4021 MSG msg;
4022
4023 r.top = pt.y - cyDrag;
4024 r.left = pt.x - cxDrag;
4025 r.bottom = pt.y + cyDrag;
4026 r.right = pt.x + cxDrag;
4027
4028 SetCapture(infoPtr->hwnd);
4029
4030 while (1)
4031 {
4032 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4033 {
4034 if (msg.message == WM_MOUSEMOVE)
4035 {
4036 pt.x = (short)LOWORD(msg.lParam);
4037 pt.y = (short)HIWORD(msg.lParam);
4038 if (PtInRect(&r, pt))
4039 continue;
4040 else
4041 {
4042 ReleaseCapture();
4043 return 1;
4044 }
4045 }
4046 else if (msg.message >= WM_LBUTTONDOWN &&
4047 msg.message <= WM_RBUTTONDBLCLK)
4048 {
4049 break;
4050 }
4051
4052 DispatchMessageW(&msg);
4053 }
4054
4055 if (GetCapture() != infoPtr->hwnd)
4056 return 0;
4057 }
4058
4059 ReleaseCapture();
4060 return 0;
4061 }
4062
4063
4064 static LRESULT
4065 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4066 {
4067 TREEVIEW_ITEM *item;
4068 TVHITTESTINFO hit;
4069
4070 TRACE("\n");
4071 SetFocus(infoPtr->hwnd);
4072
4073 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4074 {
4075 /* If there is pending 'edit label' event - kill it now */
4076 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4077 }
4078
4079 hit.pt.x = (short)LOWORD(lParam);
4080 hit.pt.y = (short)HIWORD(lParam);
4081
4082 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4083 if (!item)
4084 return 0;
4085 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4086
4087 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4088 { /* FIXME! */
4089 switch (hit.flags)
4090 {
4091 case TVHT_ONITEMRIGHT:
4092 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4093 break;
4094
4095 case TVHT_ONITEMINDENT:
4096 if (!(infoPtr->dwStyle & TVS_HASLINES))
4097 {
4098 break;
4099 }
4100 else
4101 {
4102 int level = hit.pt.x / infoPtr->uIndent;
4103 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4104
4105 while (item->iLevel > level)
4106 {
4107 item = item->parent;
4108 }
4109
4110 /* fall through */
4111 }
4112
4113 case TVHT_ONITEMLABEL:
4114 case TVHT_ONITEMICON:
4115 case TVHT_ONITEMBUTTON:
4116 TREEVIEW_Toggle(infoPtr, item, TRUE);
4117 break;
4118
4119 case TVHT_ONITEMSTATEICON:
4120 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4121 TREEVIEW_ToggleItemState(infoPtr, item);
4122 else
4123 TREEVIEW_Toggle(infoPtr, item, TRUE);
4124 break;
4125 }
4126 }
4127 return TRUE;
4128 }
4129
4130
4131 static LRESULT
4132 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4133 {
4134 HWND hwnd = infoPtr->hwnd;
4135 TVHITTESTINFO ht;
4136 BOOL bTrack, bDoLabelEdit;
4137
4138 /* If Edit control is active - kill it and return.
4139 * The best way to do it is to set focus to itself.
4140 * Edit control subclassed procedure will automatically call
4141 * EndEditLabelNow.
4142 */
4143 if (infoPtr->hwndEdit)
4144 {
4145 SetFocus(hwnd);
4146 return 0;
4147 }
4148
4149 ht.pt.x = (short)LOWORD(lParam);
4150 ht.pt.y = (short)HIWORD(lParam);
4151
4152 TREEVIEW_HitTest(infoPtr, &ht);
4153 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4154
4155 /* update focusedItem and redraw both items */
4156 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4157 {
4158 infoPtr->focusedItem = ht.hItem;
4159 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4160 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4161 }
4162
4163 bTrack = (ht.flags & TVHT_ONITEM)
4164 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4165
4166 /*
4167 * If the style allows editing and the node is already selected
4168 * and the click occurred on the item label...
4169 */
4170 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4171 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4172
4173 /* Send NM_CLICK right away */
4174 if (!bTrack)
4175 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4176 goto setfocus;
4177
4178 if (ht.flags & TVHT_ONITEMBUTTON)
4179 {
4180 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4181 goto setfocus;
4182 }
4183 else if (bTrack)
4184 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4185 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4186 {
4187 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4188 infoPtr->dropItem = ht.hItem;
4189
4190 /* clean up focusedItem as we dragged and won't select this item */
4191 if(infoPtr->focusedItem)
4192 {
4193 /* refresh the item that was focused */
4194 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4195 infoPtr->focusedItem = NULL;
4196
4197 /* refresh the selected item to return the filled background */
4198 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4199 }
4200
4201 return 0;
4202 }
4203 }
4204
4205 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4206 goto setfocus;
4207
4208 if (bDoLabelEdit)
4209 {
4210 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4211 KillTimer(hwnd, TV_EDIT_TIMER);
4212
4213 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4214 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4215 }
4216 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4217 {
4218 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4219
4220 /* Select the current item */
4221 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4222 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4223 }
4224 else if (ht.flags & TVHT_ONITEMSTATEICON)
4225 {
4226 /* TVS_CHECKBOXES requires us to toggle the current state */
4227 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4228 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4229 }
4230
4231 setfocus:
4232 SetFocus(hwnd);
4233 return 0;
4234 }
4235
4236
4237 static LRESULT
4238 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4239 {
4240 TVHITTESTINFO ht;
4241
4242 if (infoPtr->hwndEdit)
4243 {
4244 SetFocus(infoPtr->hwnd);
4245 return 0;
4246 }
4247
4248 ht.pt.x = (short)LOWORD(lParam);
4249 ht.pt.y = (short)HIWORD(lParam);
4250
4251 TREEVIEW_HitTest(infoPtr, &ht);
4252
4253 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4254 {
4255 if (ht.hItem)
4256 {
4257 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4258 infoPtr->dropItem = ht.hItem;
4259 }
4260 }
4261 else
4262 {
4263 SetFocus(infoPtr->hwnd);
4264 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4265 {
4266 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4267 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4268 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4269 }
4270 }
4271
4272 return 0;
4273 }
4274
4275 static LRESULT
4276 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4277 {
4278 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4279 INT cx, cy;
4280 HDC hdc, htopdc;
4281 HWND hwtop;
4282 HBITMAP hbmp, hOldbmp;
4283 SIZE size;
4284 RECT rc;
4285 HFONT hOldFont;
4286
4287 TRACE("\n");
4288
4289 if (!(infoPtr->himlNormal))
4290 return 0;
4291
4292 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4293 return 0;
4294
4295 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4296
4297 hwtop = GetDesktopWindow();
4298 htopdc = GetDC(hwtop);
4299 hdc = CreateCompatibleDC(htopdc);
4300
4301 hOldFont = SelectObject(hdc, infoPtr->hFont);
4302
4303 if (dragItem->pszText)
4304 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4305 &size);
4306 else
4307 GetTextExtentPoint32A(hdc, "", 0, &size);
4308
4309 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4310 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4311 hOldbmp = SelectObject(hdc, hbmp);
4312
4313 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4314 size.cx += cx;
4315 if (cy > size.cy)
4316 size.cy = cy;
4317
4318 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4319 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4320 ILD_NORMAL);
4321
4322 /*
4323 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4324 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4325 */
4326
4327 /* draw item text */
4328
4329 SetRect(&rc, cx, 0, size.cx, size.cy);
4330
4331 if (dragItem->pszText)
4332 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4333 DT_LEFT);
4334
4335 SelectObject(hdc, hOldFont);
4336 SelectObject(hdc, hOldbmp);
4337
4338 ImageList_Add(infoPtr->dragList, hbmp, 0);
4339
4340 DeleteDC(hdc);
4341 DeleteObject(hbmp);
4342 ReleaseDC(hwtop, htopdc);
4343
4344 return (LRESULT)infoPtr->dragList;
4345 }
4346
4347 /* Selection ************************************************************/
4348
4349 static LRESULT
4350 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4351 INT cause)
4352 {
4353 TREEVIEW_ITEM *prevSelect;
4354
4355 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4356
4357 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4358 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4359 newSelect ? newSelect->state : 0);
4360
4361 /* reset and redraw focusedItem if focusedItem was set so we don't */
4362 /* have to worry about the previously focused item when we set a new one */
4363 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4364 infoPtr->focusedItem = NULL;
4365
4366 switch (action)
4367 {
4368 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4369 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4370 /* Fall through */
4371 case TVGN_CARET:
4372 prevSelect = infoPtr->selectedItem;
4373
4374 if (prevSelect == newSelect) {
4375 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4376 break;
4377 }
4378
4379 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4380 TVN_SELCHANGINGW,
4381 cause,
4382 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4383 prevSelect,
4384 newSelect))
4385 return FALSE;
4386
4387 if (prevSelect)
4388 prevSelect->state &= ~TVIS_SELECTED;
4389 if (newSelect)
4390 newSelect->state |= TVIS_SELECTED;
4391
4392 infoPtr->selectedItem = newSelect;
4393
4394 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4395
4396 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4397 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4398
4399 TREEVIEW_SendTreeviewNotify(infoPtr,
4400 TVN_SELCHANGEDW,
4401 cause,
4402 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4403 prevSelect,
4404 newSelect);
4405 break;
4406
4407 case TVGN_DROPHILITE:
4408 prevSelect = infoPtr->dropItem;
4409
4410 if (prevSelect)
4411 prevSelect->state &= ~TVIS_DROPHILITED;
4412
4413 infoPtr->dropItem = newSelect;
4414
4415 if (newSelect)
4416 newSelect->state |= TVIS_DROPHILITED;
4417
4418 TREEVIEW_Invalidate(infoPtr, prevSelect);
4419 TREEVIEW_Invalidate(infoPtr, newSelect);
4420 break;
4421
4422 case TVGN_FIRSTVISIBLE:
4423 if (newSelect != NULL)
4424 {
4425 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4426 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4427 TREEVIEW_Invalidate(infoPtr, NULL);
4428 }
4429 break;
4430 }
4431
4432 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4433 return TRUE;
4434 }
4435
4436 /* FIXME: handle NM_KILLFOCUS etc */
4437 static LRESULT
4438 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4439 {
4440 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4441
4442 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4443 return FALSE;
4444
4445 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4446
4447 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4448 return FALSE;
4449
4450 TREEVIEW_SingleExpand(infoPtr, selection, item);
4451
4452 return TRUE;
4453 }
4454
4455 /*************************************************************************
4456 * TREEVIEW_ProcessLetterKeys
4457 *
4458 * Processes keyboard messages generated by pressing the letter keys
4459 * on the keyboard.
4460 * What this does is perform a case insensitive search from the
4461 * current position with the following quirks:
4462 * - If two chars or more are pressed in quick succession we search
4463 * for the corresponding string (e.g. 'abc').
4464 * - If there is a delay we wipe away the current search string and
4465 * restart with just that char.
4466 * - If the user keeps pressing the same character, whether slowly or
4467 * fast, so that the search string is entirely composed of this
4468 * character ('aaaaa' for instance), then we search for first item
4469 * that starting with that character.
4470 * - If the user types the above character in quick succession, then
4471 * we must also search for the corresponding string ('aaaaa'), and
4472 * go to that string if there is a match.
4473 *
4474 * RETURNS
4475 *
4476 * Zero.
4477 *
4478 * BUGS
4479 *
4480 * - The current implementation has a list of characters it will
4481 * accept and it ignores everything else. In particular it will
4482 * ignore accentuated characters which seems to match what
4483 * Windows does. But I'm not sure it makes sense to follow
4484 * Windows there.
4485 * - We don't sound a beep when the search fails.
4486 * - The search should start from the focused item, not from the selected
4487 * item. One reason for this is to allow for multiple selections in trees.
4488 * But currently infoPtr->focusedItem does not seem very usable.
4489 *
4490 * SEE ALSO
4491 *
4492 * TREEVIEW_ProcessLetterKeys
4493 */
4494 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4495 {
4496 HTREEITEM nItem;
4497 HTREEITEM endidx,idx;
4498 TVITEMEXW item;
4499 WCHAR buffer[MAX_PATH];
4500 DWORD timestamp,elapsed;
4501
4502 /* simple parameter checking */
4503 if (!charCode || !keyData) return 0;
4504
4505 /* only allow the valid WM_CHARs through */
4506 if (!isalnum(charCode) &&
4507 charCode != '.' && charCode != '`' && charCode != '!' &&
4508 charCode != '@' && charCode != '#' && charCode != '$' &&
4509 charCode != '%' && charCode != '^' && charCode != '&' &&
4510 charCode != '*' && charCode != '(' && charCode != ')' &&
4511 charCode != '-' && charCode != '_' && charCode != '+' &&
4512 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4513 charCode != '}' && charCode != '[' && charCode != '{' &&
4514 charCode != '/' && charCode != '?' && charCode != '>' &&
4515 charCode != '<' && charCode != ',' && charCode != '~')
4516 return 0;
4517
4518 /* compute how much time elapsed since last keypress */
4519 timestamp = GetTickCount();
4520 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4521 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4522 } else {
4523 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4524 }
4525
4526 /* update the search parameters */
4527 infoPtr->lastKeyPressTimestamp=timestamp;
4528 if (elapsed < KEY_DELAY) {
4529 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4530 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4531 }
4532 if (infoPtr->charCode != charCode) {
4533 infoPtr->charCode=charCode=0;
4534 }
4535 } else {
4536 infoPtr->charCode=charCode;
4537 infoPtr->szSearchParam[0]=charCode;
4538 infoPtr->nSearchParamLength=1;
4539 /* Redundant with the 1 char string */
4540 charCode=0;
4541 }
4542
4543 /* and search from the current position */
4544 nItem=NULL;
4545 if (infoPtr->selectedItem != NULL) {
4546 endidx=infoPtr->selectedItem;
4547 /* if looking for single character match,
4548 * then we must always move forward
4549 */
4550 if (infoPtr->nSearchParamLength == 1)
4551 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4552 else
4553 idx=endidx;
4554 } else {
4555 endidx=NULL;
4556 idx=infoPtr->root->firstChild;
4557 }
4558 do {
4559 /* At the end point, sort out wrapping */
4560 if (idx == NULL) {
4561
4562 /* If endidx is null, stop at the last item (ie top to bottom) */
4563 if (endidx == NULL)
4564 break;
4565
4566 /* Otherwise, start again at the very beginning */
4567 idx=infoPtr->root->firstChild;
4568
4569 /* But if we are stopping on the first child, end now! */
4570 if (idx == endidx) break;
4571 }
4572
4573 /* get item */
4574 ZeroMemory(&item, sizeof(item));
4575 item.mask = TVIF_TEXT;
4576 item.hItem = idx;
4577 item.pszText = buffer;
4578 item.cchTextMax = sizeof(buffer);
4579 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4580
4581 /* check for a match */
4582 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4583 nItem=idx;
4584 break;
4585 } else if ( (charCode != 0) && (nItem == NULL) &&
4586 (nItem != infoPtr->selectedItem) &&
4587 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4588 /* This would work but we must keep looking for a longer match */
4589 nItem=idx;
4590 }
4591 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4592 } while (idx != endidx);
4593
4594 if (nItem != NULL) {
4595 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4596 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4597 }
4598 }
4599
4600 return 0;
4601 }
4602
4603 /* Scrolling ************************************************************/
4604
4605 static LRESULT
4606 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4607 {
4608 int viscount;
4609 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4610 HTREEITEM newFirstVisible = NULL;
4611 int visible_pos = -1;
4612
4613 if (!TREEVIEW_ValidItem(infoPtr, item))
4614 return FALSE;
4615
4616 if (!ISVISIBLE(item))
4617 {
4618 /* Expand parents as necessary. */
4619 HTREEITEM parent;
4620
4621 /* see if we are trying to ensure that root is visible */
4622 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4623 parent = item->parent;
4624 else
4625 parent = item; /* this item is the topmost item */
4626
4627 while (parent != infoPtr->root)
4628 {
4629 if (!(parent->state & TVIS_EXPANDED))
4630 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4631
4632 parent = parent->parent;
4633 }
4634 }
4635
4636 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4637
4638 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4639 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4640
4641 if (hasFirstVisible)
4642 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4643
4644 if (visible_pos < 0)
4645 {
4646 /* item is before the start of the list: put it at the top. */
4647 newFirstVisible = item;
4648 }
4649 else if (visible_pos >= viscount
4650 /* Sometimes, before we are displayed, GVC is 0, causing us to
4651 * spuriously scroll up. */
4652 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4653 {
4654 /* item is past the end of the list. */
4655 int scroll = visible_pos - viscount;
4656
4657 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4658 scroll + 1);
4659 }
4660
4661 if (bHScroll)
4662 {
4663 /* Scroll window so item's text is visible as much as possible */
4664 /* Calculation of amount of extra space is taken from EditLabel code */
4665 INT pos, x;
4666 TEXTMETRICW textMetric;
4667 HDC hdc = GetWindowDC(infoPtr->hwnd);
4668
4669 x = item->textWidth;
4670
4671 GetTextMetricsW(hdc, &textMetric);
4672 ReleaseDC(infoPtr->hwnd, hdc);
4673
4674 x += (textMetric.tmMaxCharWidth * 2);
4675 x = max(x, textMetric.tmMaxCharWidth * 3);
4676
4677 if (item->textOffset < 0)
4678 pos = item->textOffset;
4679 else if (item->textOffset + x > infoPtr->clientWidth)
4680 {
4681 if (x > infoPtr->clientWidth)
4682 pos = item->textOffset;
4683 else
4684 pos = item->textOffset + x - infoPtr->clientWidth;
4685 }
4686 else
4687 pos = 0;
4688
4689 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4690 }
4691
4692 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4693 {
4694 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4695
4696 return TRUE;
4697 }
4698
4699 return FALSE;
4700 }
4701
4702 static VOID
4703 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4704 TREEVIEW_ITEM *newFirstVisible,
4705 BOOL bUpdateScrollPos)
4706 {
4707 int gap_size;
4708
4709 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4710
4711 if (newFirstVisible != NULL)
4712 {
4713 /* Prevent an empty gap from appearing at the bottom... */
4714 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4715 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4716
4717 if (gap_size > 0)
4718 {
4719 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4720 -gap_size);
4721
4722 /* ... unless we just don't have enough items. */
4723 if (newFirstVisible == NULL)
4724 newFirstVisible = infoPtr->root->firstChild;
4725 }
4726 }
4727
4728 if (infoPtr->firstVisible != newFirstVisible)
4729 {
4730 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4731 {
4732 infoPtr->firstVisible = newFirstVisible;
4733 TREEVIEW_Invalidate(infoPtr, NULL);
4734 }
4735 else
4736 {
4737 TREEVIEW_ITEM *item;
4738 int scroll = infoPtr->uItemHeight *
4739 (infoPtr->firstVisible->visibleOrder
4740 - newFirstVisible->visibleOrder);
4741
4742 infoPtr->firstVisible = newFirstVisible;
4743
4744 for (item = infoPtr->root->firstChild; item != NULL;
4745 item = TREEVIEW_GetNextListItem(infoPtr, item))
4746 {
4747 item->rect.top += scroll;
4748 item->rect.bottom += scroll;
4749 }
4750
4751 if (bUpdateScrollPos)
4752 SetScrollPos(infoPtr->hwnd, SB_VERT,
4753 newFirstVisible->visibleOrder, TRUE);
4754
4755 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4756 }
4757 }
4758 }
4759
4760 /************************************************************************
4761 * VScroll is always in units of visible items. i.e. we always have a
4762 * visible item aligned to the top of the control. (Unless we have no
4763 * items at all.)
4764 */
4765 static LRESULT
4766 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4767 {
4768 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4769 TREEVIEW_ITEM *newFirstVisible = NULL;
4770
4771 int nScrollCode = LOWORD(wParam);
4772
4773 TRACE("wp %lx\n", wParam);
4774
4775 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4776 return 0;
4777
4778 if (!oldFirstVisible)
4779 {
4780 assert(infoPtr->root->firstChild == NULL);
4781 return 0;
4782 }
4783
4784 switch (nScrollCode)
4785 {
4786 case SB_TOP:
4787 newFirstVisible = infoPtr->root->firstChild;
4788 break;
4789
4790 case SB_BOTTOM:
4791 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4792 break;
4793
4794 case SB_LINEUP:
4795 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4796 break;
4797
4798 case SB_LINEDOWN:
4799 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4800 break;
4801
4802 case SB_PAGEUP:
4803 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4804 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4805 break;
4806
4807 case SB_PAGEDOWN:
4808 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4809 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4810 break;
4811
4812 case SB_THUMBTRACK:
4813 case SB_THUMBPOSITION:
4814 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4815 infoPtr->root->firstChild,
4816 (LONG)(SHORT)HIWORD(wParam));
4817 break;
4818
4819 case SB_ENDSCROLL:
4820 return 0;
4821 }
4822
4823 if (newFirstVisible != NULL)
4824 {
4825 if (newFirstVisible != oldFirstVisible)
4826 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4827 nScrollCode != SB_THUMBTRACK);
4828 else if (nScrollCode == SB_THUMBPOSITION)
4829 SetScrollPos(infoPtr->hwnd, SB_VERT,
4830 newFirstVisible->visibleOrder, TRUE);
4831 }
4832
4833 return 0;
4834 }
4835
4836 static LRESULT
4837 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4838 {
4839 int maxWidth;
4840 int scrollX = infoPtr->scrollX;
4841 int nScrollCode = LOWORD(wParam);
4842
4843 TRACE("wp %lx\n", wParam);
4844
4845 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4846 return FALSE;
4847
4848 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4849 /* shall never occur */
4850 if (maxWidth <= 0)
4851 {
4852 scrollX = 0;
4853 goto scroll;
4854 }
4855
4856 switch (nScrollCode)
4857 {
4858 case SB_LINELEFT:
4859 scrollX -= infoPtr->uItemHeight;
4860 break;
4861 case SB_LINERIGHT:
4862 scrollX += infoPtr->uItemHeight;
4863 break;
4864 case SB_PAGELEFT:
4865 scrollX -= infoPtr->clientWidth;
4866 break;
4867 case SB_PAGERIGHT:
4868 scrollX += infoPtr->clientWidth;
4869 break;
4870
4871 case SB_THUMBTRACK:
4872 case SB_THUMBPOSITION:
4873 scrollX = (int)(SHORT)HIWORD(wParam);
4874 break;
4875
4876 case SB_ENDSCROLL:
4877 return 0;
4878 }
4879
4880 if (scrollX > maxWidth)
4881 scrollX = maxWidth;
4882 else if (scrollX < 0)
4883 scrollX = 0;
4884
4885 scroll:
4886 if (scrollX != infoPtr->scrollX)
4887 {
4888 TREEVIEW_ITEM *item;
4889 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4890
4891 for (item = infoPtr->root->firstChild; item != NULL;
4892 item = TREEVIEW_GetNextListItem(infoPtr, item))
4893 {
4894 item->linesOffset += scroll_pixels;
4895 item->stateOffset += scroll_pixels;
4896 item->imageOffset += scroll_pixels;
4897 item->textOffset += scroll_pixels;
4898 }
4899
4900 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4901 infoPtr->scrollX = scrollX;
4902 UpdateWindow(infoPtr->hwnd);
4903 }
4904
4905 if (nScrollCode != SB_THUMBTRACK)
4906 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4907
4908 return 0;
4909 }
4910
4911 static LRESULT
4912 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4913 {
4914 short gcWheelDelta;
4915 UINT pulScrollLines = 3;
4916
4917 if (wParam & (MK_SHIFT | MK_CONTROL))
4918 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4919
4920 if (infoPtr->firstVisible == NULL)
4921 return TRUE;
4922
4923 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4924
4925 gcWheelDelta = -(short)HIWORD(wParam);
4926 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4927
4928 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4929 {
4930 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4931 int maxDy = infoPtr->maxVisibleOrder;
4932
4933 if (newDy > maxDy)
4934 newDy = maxDy;
4935
4936 if (newDy < 0)
4937 newDy = 0;
4938
4939 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4940 }
4941 return TRUE;
4942 }
4943
4944 /* Create/Destroy *******************************************************/
4945
4946 static void
4947 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
4948 {
4949 RECT rc;
4950 HBITMAP hbm, hbmOld;
4951 HDC hdc, hdcScreen;
4952 int nIndex;
4953
4954 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4955
4956 hdcScreen = GetDC(0);
4957
4958 hdc = CreateCompatibleDC(hdcScreen);
4959 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4960 hbmOld = SelectObject(hdc, hbm);
4961
4962 SetRect(&rc, 0, 0, 48, 16);
4963 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4964
4965 SetRect(&rc, 18, 2, 30, 14);
4966 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4967 DFCS_BUTTONCHECK|DFCS_FLAT);
4968
4969 SetRect(&rc, 34, 2, 46, 14);
4970 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4971 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4972
4973 SelectObject(hdc, hbmOld);
4974 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4975 comctl32_color.clrWindow);
4976 TRACE("checkbox index %d\n", nIndex);
4977
4978 DeleteObject(hbm);
4979 DeleteDC(hdc);
4980 ReleaseDC(0, hdcScreen);
4981
4982 infoPtr->stateImageWidth = 16;
4983 infoPtr->stateImageHeight = 16;
4984 }
4985
4986 static LRESULT
4987 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4988 {
4989 RECT rcClient;
4990 TREEVIEW_INFO *infoPtr;
4991 LOGFONTW lf;
4992
4993 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4994
4995 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
4996
4997 if (infoPtr == NULL)
4998 {
4999 ERR("could not allocate info memory!\n");
5000 return 0;
5001 }
5002
5003 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5004
5005 infoPtr->hwnd = hwnd;
5006 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5007 infoPtr->Timer = 0;
5008 infoPtr->uNumItems = 0;
5009 infoPtr->cdmode = 0;
5010 infoPtr->uScrollTime = 300; /* milliseconds */
5011 infoPtr->bRedraw = TRUE;
5012
5013 GetClientRect(hwnd, &rcClient);
5014
5015 /* No scroll bars yet. */
5016 infoPtr->clientWidth = rcClient.right;
5017 infoPtr->clientHeight = rcClient.bottom;
5018 infoPtr->uInternalStatus = 0;
5019
5020 infoPtr->treeWidth = 0;
5021 infoPtr->treeHeight = 0;
5022
5023 infoPtr->uIndent = MINIMUM_INDENT;
5024 infoPtr->selectedItem = NULL;
5025 infoPtr->focusedItem = NULL;
5026 infoPtr->hotItem = NULL;
5027 infoPtr->editItem = NULL;
5028 infoPtr->firstVisible = NULL;
5029 infoPtr->maxVisibleOrder = 0;
5030 infoPtr->dropItem = NULL;
5031 infoPtr->insertMarkItem = NULL;
5032 infoPtr->insertBeforeorAfter = 0;
5033 /* dragList */
5034
5035 infoPtr->scrollX = 0;
5036
5037 infoPtr->clrBk = CLR_NONE; /* use system color */
5038 infoPtr->clrText = CLR_NONE; /* use system color */
5039 infoPtr->clrLine = CLR_DEFAULT;
5040 infoPtr->clrInsertMark = CLR_DEFAULT;
5041
5042 /* hwndToolTip */
5043
5044 infoPtr->hwndEdit = NULL;
5045 infoPtr->wpEditOrig = NULL;
5046 infoPtr->bIgnoreEditKillFocus = FALSE;
5047 infoPtr->bLabelChanged = FALSE;
5048
5049 infoPtr->himlNormal = NULL;
5050 infoPtr->himlState = NULL;
5051 infoPtr->normalImageWidth = 0;
5052 infoPtr->normalImageHeight = 0;
5053 infoPtr->stateImageWidth = 0;
5054 infoPtr->stateImageHeight = 0;
5055
5056 infoPtr->items = DPA_Create(16);
5057
5058 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5059 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5060 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5061 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5062 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5063
5064 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5065
5066 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5067 infoPtr->root->state = TVIS_EXPANDED;
5068 infoPtr->root->iLevel = -1;
5069 infoPtr->root->visibleOrder = -1;
5070
5071 infoPtr->hwndNotify = lpcs->hwndParent;
5072 infoPtr->hwndToolTip = 0;
5073
5074 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5075 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5076
5077 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5078 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5079 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5080 hwnd, 0, 0, 0);
5081
5082 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5083 TREEVIEW_InitCheckboxes(infoPtr);
5084
5085 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5086 ShowScrollBar(hwnd, SB_VERT, FALSE);
5087 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5088
5089 OpenThemeData (hwnd, themeClass);
5090
5091 return 0;
5092 }
5093
5094
5095 static LRESULT
5096 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5097 {
5098 TRACE("\n");
5099
5100 /* free item data */
5101 TREEVIEW_RemoveTree(infoPtr);
5102 /* root isn't freed with other items */
5103 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5104 DPA_Destroy(infoPtr->items);
5105
5106 /* tool tip is automatically destroyed: we are its owner */
5107
5108 /* Restore original wndproc */
5109 if (infoPtr->hwndEdit)
5110 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5111 (DWORD_PTR)infoPtr->wpEditOrig);
5112
5113 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5114
5115 /* Deassociate treeview from the window before doing anything drastic. */
5116 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5117
5118 DeleteObject(infoPtr->hDefaultFont);
5119 DeleteObject(infoPtr->hBoldFont);
5120 DeleteObject(infoPtr->hUnderlineFont);
5121 Free(infoPtr);
5122
5123 return 0;
5124 }
5125
5126 /* Miscellaneous Messages ***********************************************/
5127
5128 static LRESULT
5129 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5130 {
5131 static const struct
5132 {
5133 unsigned char code;
5134 }
5135 scroll[] =
5136 {
5137 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5138 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5139 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5140 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5141 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5142 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5143 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5144 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5145 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5146 #undef SCROLL_ENTRY
5147 };
5148
5149 if (key >= VK_PRIOR && key <= VK_DOWN)
5150 {
5151 unsigned char code = scroll[key - VK_PRIOR].code;
5152
5153 (((code & (1 << 7)) == (SB_HORZ << 7))
5154 ? TREEVIEW_HScroll
5155 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5156 }
5157
5158 return 0;
5159 }
5160
5161 /************************************************************************
5162 * TREEVIEW_KeyDown
5163 *
5164 * VK_UP Move selection to the previous non-hidden item.
5165 * VK_DOWN Move selection to the next non-hidden item.
5166 * VK_HOME Move selection to the first item.
5167 * VK_END Move selection to the last item.
5168 * VK_LEFT If expanded then collapse, otherwise move to parent.
5169 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5170 * VK_ADD Expand.
5171 * VK_SUBTRACT Collapse.
5172 * VK_MULTIPLY Expand all.
5173 * VK_PRIOR Move up GetVisibleCount items.
5174 * VK_NEXT Move down GetVisibleCount items.
5175 * VK_BACK Move to parent.
5176 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5177 */
5178 static LRESULT
5179 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5180 {
5181 /* If it is non-NULL and different, it will be selected and visible. */
5182 TREEVIEW_ITEM *newSelection = NULL;
5183
5184 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5185
5186 TRACE("%lx\n", wParam);
5187
5188 if (prevItem == NULL)
5189 return FALSE;
5190
5191 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5192 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5193
5194 switch (wParam)
5195 {
5196 case VK_UP:
5197 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5198 if (!newSelection)
5199 newSelection = infoPtr->root->firstChild;
5200 break;
5201
5202 case VK_DOWN:
5203 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5204 break;
5205
5206 case VK_HOME:
5207 newSelection = infoPtr->root->firstChild;
5208 break;
5209
5210 case VK_END:
5211 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5212 break;
5213
5214 case VK_LEFT:
5215 if (prevItem->state & TVIS_EXPANDED)
5216 {
5217 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5218 }
5219 else if (prevItem->parent != infoPtr->root)
5220 {
5221 newSelection = prevItem->parent;
5222 }
5223 break;
5224
5225 case VK_RIGHT:
5226 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5227 {
5228 if (!(prevItem->state & TVIS_EXPANDED))
5229 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5230 else
5231 {
5232 newSelection = prevItem->firstChild;
5233 }
5234 }
5235
5236 break;
5237
5238 case VK_MULTIPLY:
5239 TREEVIEW_ExpandAll(infoPtr, prevItem);
5240 break;
5241
5242 case VK_ADD:
5243 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5244 break;
5245
5246 case VK_SUBTRACT:
5247 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5248 break;
5249
5250 case VK_PRIOR:
5251 newSelection
5252 = TREEVIEW_GetListItem(infoPtr, prevItem,
5253 -TREEVIEW_GetVisibleCount(infoPtr));
5254 break;
5255
5256 case VK_NEXT:
5257 newSelection
5258 = TREEVIEW_GetListItem(infoPtr, prevItem,
5259 TREEVIEW_GetVisibleCount(infoPtr));
5260 break;
5261
5262 case VK_BACK:
5263 newSelection = prevItem->parent;
5264 if (newSelection == infoPtr->root)
5265 newSelection = NULL;
5266 break;
5267
5268 case VK_SPACE:
5269 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5270 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5271 break;
5272 }
5273
5274 if (newSelection && newSelection != prevItem)
5275 {
5276 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5277 TVC_BYKEYBOARD))
5278 {
5279 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5280 }
5281 }
5282
5283 return FALSE;
5284 }
5285
5286 static LRESULT
5287 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5288 {
5289 /* remove hot effect from item */
5290 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5291 infoPtr->hotItem = NULL;
5292
5293 return 0;
5294 }
5295
5296 static LRESULT
5297 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5298 {
5299 POINT pt;
5300 TRACKMOUSEEVENT trackinfo;
5301 TREEVIEW_ITEM * item;
5302
5303 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5304
5305 /* fill in the TRACKMOUSEEVENT struct */
5306 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5307 trackinfo.dwFlags = TME_QUERY;
5308 trackinfo.hwndTrack = infoPtr->hwnd;
5309
5310 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5311 _TrackMouseEvent(&trackinfo);
5312
5313 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5314 if(!(trackinfo.dwFlags & TME_LEAVE))
5315 {
5316 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5317 trackinfo.hwndTrack = infoPtr->hwnd;
5318 /* do it as fast as possible, minimal systimer latency will be used */
5319 trackinfo.dwHoverTime = 1;
5320
5321 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5322 /* and can properly deactivate the hot item */
5323 _TrackMouseEvent(&trackinfo);
5324 }
5325
5326 pt.x = (short)LOWORD(lParam);
5327 pt.y = (short)HIWORD(lParam);
5328
5329 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5330
5331 if (item != infoPtr->hotItem)
5332 {
5333 /* redraw old hot item */
5334 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5335 infoPtr->hotItem = item;
5336 /* redraw new hot item */
5337 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5338 }
5339
5340 return 0;
5341 }
5342
5343 /* Draw themed border */
5344 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5345 {
5346 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5347 HDC dc;
5348 RECT r;
5349 HRGN cliprgn;
5350 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5351 cyEdge = GetSystemMetrics (SM_CYEDGE);
5352
5353 if (!theme)
5354 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5355
5356 GetWindowRect(infoPtr->hwnd, &r);
5357
5358 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5359 r.right - cxEdge, r.bottom - cyEdge);
5360 if (region != (HRGN)1)
5361 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5362 OffsetRect(&r, -r.left, -r.top);
5363
5364 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5365 OffsetRect(&r, -r.left, -r.top);
5366
5367 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5368 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5369 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5370 ReleaseDC(infoPtr->hwnd, dc);
5371
5372 /* Call default proc to get the scrollbars etc. painted */
5373 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5374
5375 return TRUE;
5376 }
5377
5378 static LRESULT
5379 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5380 {
5381 LPNMHDR lpnmh = (LPNMHDR)lParam;
5382
5383 if (lpnmh->code == PGN_CALCSIZE) {
5384 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5385
5386 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5387 lppgc->iWidth = infoPtr->treeWidth;
5388 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5389 infoPtr->treeWidth, infoPtr->clientWidth);
5390 }
5391 else {
5392 lppgc->iHeight = infoPtr->treeHeight;
5393 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5394 infoPtr->treeHeight, infoPtr->clientHeight);
5395 }
5396 return 0;
5397 }
5398 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5399 }
5400
5401 static LRESULT
5402 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5403 {
5404 if (wParam == SIZE_RESTORED)
5405 {
5406 infoPtr->clientWidth = (short)LOWORD(lParam);
5407 infoPtr->clientHeight = (short)HIWORD(lParam);
5408
5409 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5410 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5411 TREEVIEW_UpdateScrollBars(infoPtr);
5412 }
5413 else
5414 {
5415 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5416 }
5417
5418 TREEVIEW_Invalidate(infoPtr, NULL);
5419 return 0;
5420 }
5421
5422 static void TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5423 {
5424 TREEVIEW_ITEM *child = item->firstChild;
5425
5426 item->state &= ~TVIS_STATEIMAGEMASK;
5427 item->state |= INDEXTOSTATEIMAGEMASK(1);
5428
5429 while (child)
5430 {
5431 TREEVIEW_ITEM *next = child->nextSibling;
5432 TREEVIEW_ResetImageStateIndex(infoPtr, child);
5433 child = next;
5434 }
5435 }
5436
5437 static LRESULT
5438 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5439 {
5440 TRACE("(%lx %lx)\n", wParam, lParam);
5441
5442 if (wParam == GWL_STYLE)
5443 {
5444 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5445
5446 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5447 {
5448 if (dwNewStyle & TVS_CHECKBOXES)
5449 {
5450 TREEVIEW_InitCheckboxes(infoPtr);
5451 TRACE("checkboxes enabled\n");
5452
5453 /* set all items to state image index 1 */
5454 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5455 }
5456 else
5457 {
5458 FIXME("tried to disable checkboxes\n");
5459 }
5460 }
5461
5462 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5463 {
5464 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5465 {
5466 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5467 TRACE("tooltips enabled\n");
5468 }
5469 else
5470 {
5471 DestroyWindow(infoPtr->hwndToolTip);
5472 infoPtr->hwndToolTip = 0;
5473 TRACE("tooltips disabled\n");
5474 }
5475 }
5476
5477 infoPtr->dwStyle = dwNewStyle;
5478 }
5479
5480 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5481 TREEVIEW_UpdateScrollBars(infoPtr);
5482 TREEVIEW_Invalidate(infoPtr, NULL);
5483
5484 return 0;
5485 }
5486
5487 static LRESULT
5488 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5489 {
5490 POINT pt;
5491 TREEVIEW_ITEM * item;
5492 NMMOUSE nmmouse;
5493
5494 GetCursorPos(&pt);
5495 ScreenToClient(infoPtr->hwnd, &pt);
5496
5497 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5498
5499 memset(&nmmouse, 0, sizeof(nmmouse));
5500 nmmouse.hdr.hwndFrom = infoPtr->hwnd;
5501 nmmouse.hdr.idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
5502 nmmouse.hdr.code = NM_SETCURSOR;
5503 if (item)
5504 {
5505 nmmouse.dwItemSpec = (DWORD_PTR)item;
5506 nmmouse.dwItemData = item->lParam;
5507 }
5508 nmmouse.pt.x = 0;
5509 nmmouse.pt.y = 0;
5510 nmmouse.dwHitInfo = lParam;
5511 if (TREEVIEW_SendRealNotify(infoPtr, nmmouse.hdr.idFrom, &nmmouse.hdr))
5512 return 0;
5513
5514 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5515 {
5516 SetCursor(infoPtr->hcurHand);
5517 return 0;
5518 }
5519 else
5520 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5521 }
5522
5523 static LRESULT
5524 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5525 {
5526 TRACE("\n");
5527
5528 if (!infoPtr->selectedItem)
5529 {
5530 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5531 TVC_UNKNOWN);
5532 }
5533
5534 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5535 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5536 return 0;
5537 }
5538
5539 static LRESULT
5540 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5541 {
5542 TRACE("\n");
5543
5544 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5545 UpdateWindow(infoPtr->hwnd);
5546 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5547 return 0;
5548 }
5549
5550 /* update theme after a WM_THEMECHANGED message */
5551 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5552 {
5553 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5554 CloseThemeData (theme);
5555 OpenThemeData (infoPtr->hwnd, themeClass);
5556 return 0;
5557 }
5558
5559
5560 static LRESULT WINAPI
5561 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5562 {
5563 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5564
5565 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5566
5567 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5568 else
5569 {
5570 if (uMsg == WM_CREATE)
5571 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5572 else
5573 goto def;
5574 }
5575
5576 switch (uMsg)
5577 {
5578 case TVM_CREATEDRAGIMAGE:
5579 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5580
5581 case TVM_DELETEITEM:
5582 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5583
5584 case TVM_EDITLABELA:
5585 case TVM_EDITLABELW:
5586 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5587
5588 case TVM_ENDEDITLABELNOW:
5589 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5590
5591 case TVM_ENSUREVISIBLE:
5592 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5593
5594 case TVM_EXPAND:
5595 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5596
5597 case TVM_GETBKCOLOR:
5598 return TREEVIEW_GetBkColor(infoPtr);
5599
5600 case TVM_GETCOUNT:
5601 return TREEVIEW_GetCount(infoPtr);
5602
5603 case TVM_GETEDITCONTROL:
5604 return TREEVIEW_GetEditControl(infoPtr);
5605
5606 case TVM_GETIMAGELIST:
5607 return TREEVIEW_GetImageList(infoPtr, wParam);
5608
5609 case TVM_GETINDENT:
5610 return TREEVIEW_GetIndent(infoPtr);
5611
5612 case TVM_GETINSERTMARKCOLOR:
5613 return TREEVIEW_GetInsertMarkColor(infoPtr);
5614
5615 case TVM_GETISEARCHSTRINGA:
5616 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5617 return 0;
5618
5619 case TVM_GETISEARCHSTRINGW:
5620 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5621 return 0;
5622
5623 case TVM_GETITEMA:
5624 case TVM_GETITEMW:
5625 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5626 uMsg == TVM_GETITEMW);
5627 case TVM_GETITEMHEIGHT:
5628 return TREEVIEW_GetItemHeight(infoPtr);
5629
5630 case TVM_GETITEMRECT:
5631 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5632
5633 case TVM_GETITEMSTATE:
5634 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5635
5636 case TVM_GETLINECOLOR:
5637 return TREEVIEW_GetLineColor(infoPtr);
5638
5639 case TVM_GETNEXTITEM:
5640 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5641
5642 case TVM_GETSCROLLTIME:
5643 return TREEVIEW_GetScrollTime(infoPtr);
5644
5645 case TVM_GETTEXTCOLOR:
5646 return TREEVIEW_GetTextColor(infoPtr);
5647
5648 case TVM_GETTOOLTIPS:
5649 return TREEVIEW_GetToolTips(infoPtr);
5650
5651 case TVM_GETUNICODEFORMAT:
5652 return TREEVIEW_GetUnicodeFormat(infoPtr);
5653
5654 case TVM_GETVISIBLECOUNT:
5655 return TREEVIEW_GetVisibleCount(infoPtr);
5656
5657 case TVM_HITTEST:
5658 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5659
5660 case TVM_INSERTITEMA:
5661 case TVM_INSERTITEMW:
5662 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5663 uMsg == TVM_INSERTITEMW);
5664 case TVM_SELECTITEM:
5665 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5666
5667 case TVM_SETBKCOLOR:
5668 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5669
5670 case TVM_SETIMAGELIST:
5671 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5672
5673 case TVM_SETINDENT:
5674 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5675
5676 case TVM_SETINSERTMARK:
5677 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5678
5679 case TVM_SETINSERTMARKCOLOR:
5680 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5681
5682 case TVM_SETITEMA:
5683 case TVM_SETITEMW:
5684 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5685 uMsg == TVM_SETITEMW);
5686 case TVM_SETLINECOLOR:
5687 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5688
5689 case TVM_SETITEMHEIGHT:
5690 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5691
5692 case TVM_SETSCROLLTIME:
5693 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5694
5695 case TVM_SETTEXTCOLOR:
5696 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5697
5698 case TVM_SETTOOLTIPS:
5699 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5700
5701 case TVM_SETUNICODEFORMAT:
5702 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5703
5704 case TVM_SORTCHILDREN:
5705 return TREEVIEW_SortChildren(infoPtr, lParam);
5706
5707 case TVM_SORTCHILDRENCB:
5708 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5709
5710 case WM_CHAR:
5711 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5712
5713 case WM_COMMAND:
5714 return TREEVIEW_Command(infoPtr, wParam, lParam);
5715
5716 case WM_DESTROY:
5717 return TREEVIEW_Destroy(infoPtr);
5718
5719 /* WM_ENABLE */
5720
5721 case WM_ERASEBKGND:
5722 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5723
5724 case WM_GETDLGCODE:
5725 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5726
5727 case WM_GETFONT:
5728 return TREEVIEW_GetFont(infoPtr);
5729
5730 case WM_HSCROLL:
5731 return TREEVIEW_HScroll(infoPtr, wParam);
5732
5733 case WM_KEYDOWN:
5734 return TREEVIEW_KeyDown(infoPtr, wParam);
5735
5736 case WM_KILLFOCUS:
5737 return TREEVIEW_KillFocus(infoPtr);
5738
5739 case WM_LBUTTONDBLCLK:
5740 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5741
5742 case WM_LBUTTONDOWN:
5743 return TREEVIEW_LButtonDown(infoPtr, lParam);
5744
5745 /* WM_MBUTTONDOWN */
5746
5747 case WM_MOUSELEAVE:
5748 return TREEVIEW_MouseLeave(infoPtr);
5749
5750 case WM_MOUSEMOVE:
5751 return TREEVIEW_MouseMove(infoPtr, lParam);
5752
5753 case WM_NCLBUTTONDOWN:
5754 if (infoPtr->hwndEdit)
5755 SetFocus(infoPtr->hwnd);
5756 goto def;
5757
5758 case WM_NCPAINT:
5759 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5760
5761 case WM_NOTIFY:
5762 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5763
5764 case WM_NOTIFYFORMAT:
5765 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5766
5767 case WM_PRINTCLIENT:
5768 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5769
5770 case WM_PAINT:
5771 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5772
5773 case WM_RBUTTONDOWN:
5774 return TREEVIEW_RButtonDown(infoPtr, lParam);
5775
5776 case WM_SETCURSOR:
5777 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5778
5779 case WM_SETFOCUS:
5780 return TREEVIEW_SetFocus(infoPtr);
5781
5782 case WM_SETFONT:
5783 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5784
5785 case WM_SETREDRAW:
5786 return TREEVIEW_SetRedraw(infoPtr, wParam);
5787
5788 case WM_SIZE:
5789 return TREEVIEW_Size(infoPtr, wParam, lParam);
5790
5791 case WM_STYLECHANGED:
5792 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5793
5794 case WM_SYSCOLORCHANGE:
5795 COMCTL32_RefreshSysColors();
5796 return 0;
5797
5798 /* WM_SYSKEYDOWN */
5799
5800 case WM_TIMER:
5801 return TREEVIEW_HandleTimer(infoPtr, wParam);
5802
5803 case WM_THEMECHANGED:
5804 return TREEVIEW_ThemeChanged (infoPtr);
5805
5806 case WM_VSCROLL:
5807 return TREEVIEW_VScroll(infoPtr, wParam);
5808
5809 /* WM_WININICHANGE */
5810
5811 case WM_MOUSEWHEEL:
5812 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5813
5814 case WM_DRAWITEM:
5815 TRACE("drawItem\n");
5816 goto def;
5817
5818 default:
5819 /* This mostly catches MFC and Delphi messages. :( */
5820 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5821 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5822 def:
5823 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5824 }
5825 }
5826
5827
5828 /* Class Registration ***************************************************/
5829
5830 VOID
5831 TREEVIEW_Register(void)
5832 {
5833 WNDCLASSW wndClass;
5834
5835 TRACE("\n");
5836
5837 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5838 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5839 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5840 wndClass.cbClsExtra = 0;
5841 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5842
5843 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5844 wndClass.hbrBackground = 0;
5845 wndClass.lpszClassName = WC_TREEVIEWW;
5846
5847 RegisterClassW(&wndClass);
5848 }
5849
5850
5851 VOID
5852 TREEVIEW_Unregister(void)
5853 {
5854 UnregisterClassW(WC_TREEVIEWW, NULL);
5855 }
5856
5857
5858 /* Tree Verification ****************************************************/
5859
5860 static inline void
5861 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5862
5863 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5864 const TREEVIEW_ITEM *item)
5865 {
5866 assert(infoPtr != NULL);
5867 assert(item != NULL);
5868
5869 /* both NULL, or both non-null */
5870 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5871
5872 assert(item->firstChild != item);
5873 assert(item->lastChild != item);
5874
5875 if (item->firstChild)
5876 {
5877 assert(item->firstChild->parent == item);
5878 assert(item->firstChild->prevSibling == NULL);
5879 }
5880
5881 if (item->lastChild)
5882 {
5883 assert(item->lastChild->parent == item);
5884 assert(item->lastChild->nextSibling == NULL);
5885 }
5886
5887 assert(item->nextSibling != item);
5888 if (item->nextSibling)
5889 {
5890 assert(item->nextSibling->parent == item->parent);
5891 assert(item->nextSibling->prevSibling == item);
5892 }
5893
5894 assert(item->prevSibling != item);
5895 if (item->prevSibling)
5896 {
5897 assert(item->prevSibling->parent == item->parent);
5898 assert(item->prevSibling->nextSibling == item);
5899 }
5900 }
5901
5902 static inline void
5903 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5904 {
5905 assert(item != NULL);
5906
5907 assert(item->parent != NULL);
5908 assert(item->parent != item);
5909 assert(item->iLevel == item->parent->iLevel + 1);
5910
5911 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5912
5913 TREEVIEW_VerifyItemCommon(infoPtr, item);
5914
5915 TREEVIEW_VerifyChildren(infoPtr, item);
5916 }
5917
5918 static inline void
5919 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5920 {
5921 const TREEVIEW_ITEM *child;
5922 assert(item != NULL);
5923
5924 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5925 TREEVIEW_VerifyItem(infoPtr, child);
5926 }
5927
5928 static inline void
5929 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5930 {
5931 TREEVIEW_ITEM *root = infoPtr->root;
5932
5933 assert(root != NULL);
5934 assert(root->iLevel == -1);
5935 assert(root->parent == NULL);
5936 assert(root->prevSibling == NULL);
5937
5938 TREEVIEW_VerifyItemCommon(infoPtr, root);
5939
5940 TREEVIEW_VerifyChildren(infoPtr, root);
5941 }
5942
5943 static void
5944 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5945 {
5946 if (!TRACE_ON(treeview)) return;
5947
5948 assert(infoPtr != NULL);
5949 TREEVIEW_VerifyRoot(infoPtr);
5950 }
Windows API implementation