f7b1afabcbcd6e3ca5047e0a7ed52f13588bf580
[reactos.git] / reactos / dll / win32 / comctl32 / treeview.c
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
37 *
38 * Make the insertion mark look right.
39 * Scroll (instead of repaint) as much as possible.
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <assert.h>
46 #include <ctype.h>
47 #include <stdarg.h>
48 #include <string.h>
49 #include <limits.h>
50 #include <stdlib.h>
51
52 #define NONAMELESSUNION
53 #define NONAMELESSSTRUCT
54 #include "windef.h"
55 #include "winbase.h"
56 #include "wingdi.h"
57 #include "winuser.h"
58 #include "winnls.h"
59 #include "commctrl.h"
60 #include "comctl32.h"
61 #include "uxtheme.h"
62 #include "tmschema.h"
63 #include "wine/unicode.h"
64 #include "wine/debug.h"
65
66 /* internal structures */
67
68 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
69 {
70 UINT callbackMask;
71 UINT state;
72 UINT stateMask;
73 LPWSTR pszText;
74 int cchTextMax;
75 int iImage;
76 int iSelectedImage;
77 int cChildren;
78 LPARAM lParam;
79 int iIntegral; /* item height multiplier (1 is normal) */
80 int iLevel; /* indentation level:0=root level */
81 HTREEITEM parent; /* handle to parent or 0 if at root */
82 HTREEITEM firstChild; /* handle to first child or 0 if no child */
83 HTREEITEM lastChild;
84 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
85 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
86 RECT rect;
87 LONG linesOffset;
88 LONG stateOffset;
89 LONG imageOffset;
90 LONG textOffset;
91 LONG textWidth; /* horizontal text extent for pszText */
92 LONG visibleOrder; /* visible ordering, 0 is first visible item */
93 } TREEVIEW_ITEM;
94
95
96 typedef struct tagTREEVIEW_INFO
97 {
98 HWND hwnd;
99 HWND hwndNotify; /* Owner window to send notifications to */
100 DWORD dwStyle;
101 HTREEITEM root;
102 UINT uInternalStatus;
103 INT Timer;
104 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
105 INT cdmode; /* last custom draw setting */
106 UINT uScrollTime; /* max. time for scrolling in milliseconds */
107 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
108
109 UINT uItemHeight; /* item height */
110 BOOL bHeightSet;
111
112 LONG clientWidth; /* width of control window */
113 LONG clientHeight; /* height of control window */
114
115 LONG treeWidth; /* width of visible tree items */
116 LONG treeHeight; /* height of visible tree items */
117
118 UINT uIndent; /* indentation in pixels */
119 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
120 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
121 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
122 HTREEITEM editItem; /* item being edited with builtin edit box */
123
124 HTREEITEM firstVisible; /* handle to first visible item */
125 LONG maxVisibleOrder;
126 HTREEITEM dropItem; /* handle to item selected by drag cursor */
127 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
128 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
129 HIMAGELIST dragList; /* Bitmap of dragged item */
130 LONG scrollX;
131 COLORREF clrBk;
132 COLORREF clrText;
133 COLORREF clrLine;
134 COLORREF clrInsertMark;
135 HFONT hFont;
136 HFONT hDefaultFont;
137 HFONT hBoldFont;
138 HFONT hUnderlineFont;
139 HCURSOR hcurHand;
140 HWND hwndToolTip;
141
142 HWND hwndEdit;
143 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
144 BOOL bIgnoreEditKillFocus;
145 BOOL bLabelChanged;
146
147 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
148 HIMAGELIST himlNormal;
149 int normalImageHeight;
150 int normalImageWidth;
151 HIMAGELIST himlState;
152 int stateImageHeight;
153 int stateImageWidth;
154 HDPA items;
155
156 DWORD lastKeyPressTimestamp; /* Added */
157 WPARAM charCode; /* Added */
158 INT nSearchParamLength; /* Added */
159 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
160 } TREEVIEW_INFO;
161
162
163 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
164 #define KEY_DELAY 450
165
166 /* bitflags for infoPtr->uInternalStatus */
167
168 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
169 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
170 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
171 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
172 #define TV_RDRAG 0x10 /* ditto Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 return DPA_GetPtrIndex(infoPtr->items, handle);
245 }
246
247 /* Checks if item has changed and needs to be redrawn */
248 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
249 const TVITEMEXW *tvChange)
250 {
251 /* Number of children has changed */
252 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
253 return TRUE;
254
255 /* Image has changed and it's not a callback */
256 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
257 tiNew->iImage != I_IMAGECALLBACK)
258 return TRUE;
259
260 /* Selected image has changed and it's not a callback */
261 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
262 tiNew->iSelectedImage != I_IMAGECALLBACK)
263 return TRUE;
264
265 /* Text has changed and it's not a callback */
266 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
267 tiNew->pszText != LPSTR_TEXTCALLBACKW)
268 return TRUE;
269
270 /* Indent has changed */
271 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
272 return TRUE;
273
274 /* Item state has changed */
275 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
276 return TRUE;
277
278 return FALSE;
279 }
280
281 /***************************************************************************
282 * This method checks that handle is an item for this tree.
283 */
284 static BOOL
285 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
286 {
287 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
288 {
289 TRACE("invalid item %p\n", handle);
290 return FALSE;
291 }
292 else
293 return TRUE;
294 }
295
296 static HFONT
297 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
298 {
299 LOGFONTW font;
300
301 GetObjectW(hOrigFont, sizeof(font), &font);
302 font.lfWeight = FW_BOLD;
303 return CreateFontIndirectW(&font);
304 }
305
306 static HFONT
307 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
308 {
309 LOGFONTW font;
310
311 GetObjectW(hOrigFont, sizeof(font), &font);
312 font.lfUnderline = TRUE;
313 return CreateFontIndirectW(&font);
314 }
315
316 static inline HFONT
317 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
318 {
319 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
320 return infoPtr->hUnderlineFont;
321 if (item->state & TVIS_BOLD)
322 return infoPtr->hBoldFont;
323 return infoPtr->hFont;
324 }
325
326 /* for trace/debugging purposes only */
327 static const char *
328 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
329 {
330 if (item == NULL) return "<null item>";
331 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
332 if (item->pszText == NULL) return "<null>";
333 return debugstr_w(item->pszText);
334 }
335
336 /* An item is not a child of itself. */
337 static BOOL
338 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
339 {
340 do
341 {
342 child = child->parent;
343 if (child == parent) return TRUE;
344 } while (child != NULL);
345
346 return FALSE;
347 }
348
349
350 /* Tree Traversal *******************************************************/
351
352 /***************************************************************************
353 * This method returns the last expanded sibling or child child item
354 * of a tree node
355 */
356 static TREEVIEW_ITEM *
357 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
358 {
359 if (!wineItem)
360 return NULL;
361
362 while (wineItem->lastChild)
363 {
364 if (wineItem->state & TVIS_EXPANDED)
365 wineItem = wineItem->lastChild;
366 else
367 break;
368 }
369
370 if (wineItem == infoPtr->root)
371 return NULL;
372
373 return wineItem;
374 }
375
376 /***************************************************************************
377 * This method returns the previous non-hidden item in the list not
378 * considering the tree hierarchy.
379 */
380 static TREEVIEW_ITEM *
381 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
382 {
383 if (tvItem->prevSibling)
384 {
385 /* This item has a prevSibling, get the last item in the sibling's tree. */
386 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
387
388 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
389 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
390 else
391 return upItem;
392 }
393 else
394 {
395 /* this item does not have a prevSibling, get the parent */
396 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
397 }
398 }
399
400
401 /***************************************************************************
402 * This method returns the next physical item in the treeview not
403 * considering the tree hierarchy.
404 */
405 static TREEVIEW_ITEM *
406 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
407 {
408 /*
409 * If this item has children and is expanded, return the first child
410 */
411 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
412 {
413 return tvItem->firstChild;
414 }
415
416
417 /*
418 * try to get the sibling
419 */
420 if (tvItem->nextSibling)
421 return tvItem->nextSibling;
422
423 /*
424 * Otherwise, get the parent's sibling.
425 */
426 while (tvItem->parent)
427 {
428 tvItem = tvItem->parent;
429
430 if (tvItem->nextSibling)
431 return tvItem->nextSibling;
432 }
433
434 return NULL;
435 }
436
437 /***************************************************************************
438 * This method returns the nth item starting at the given item. It returns
439 * the last item (or first) we we run out of items.
440 *
441 * Will scroll backward if count is <0.
442 * forward if count is >0.
443 */
444 static TREEVIEW_ITEM *
445 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
446 LONG count)
447 {
448 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
449 TREEVIEW_ITEM *previousItem;
450
451 assert(wineItem != NULL);
452
453 if (count > 0)
454 {
455 next_item = TREEVIEW_GetNextListItem;
456 }
457 else if (count < 0)
458 {
459 count = -count;
460 next_item = TREEVIEW_GetPrevListItem;
461 }
462 else
463 return wineItem;
464
465 do
466 {
467 previousItem = wineItem;
468 wineItem = next_item(infoPtr, wineItem);
469
470 } while (--count && wineItem != NULL);
471
472
473 return wineItem ? wineItem : previousItem;
474 }
475
476 /* Notifications ************************************************************/
477
478 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
479 {
480 if (!infoPtr->bNtfUnicode) {
481 switch (code) {
482 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
483 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
484 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
485 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
486 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
487 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
488 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
489 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
490 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
491 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
492 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
493 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
494 }
495 }
496 return code;
497 }
498
499 static LRESULT
500 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
501 {
502 TRACE("wParam=%ld, lParam=%ld\n", wParam, lParam);
503 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
504 }
505
506 static BOOL
507 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
508 {
509 NMHDR nmhdr;
510 HWND hwnd = infoPtr->hwnd;
511
512 TRACE("%d\n", code);
513 nmhdr.hwndFrom = hwnd;
514 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
515 nmhdr.code = get_notifycode(infoPtr, code);
516
517 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, (LPARAM)&nmhdr);
518 }
519
520 static VOID
521 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
522 {
523 tvItem->mask = mask;
524 tvItem->hItem = item;
525 tvItem->state = item->state;
526 tvItem->stateMask = 0;
527 tvItem->iImage = item->iImage;
528 tvItem->iSelectedImage = item->iSelectedImage;
529 tvItem->cChildren = item->cChildren;
530 tvItem->lParam = item->lParam;
531
532 if(mask & TVIF_TEXT)
533 {
534 if (!infoPtr->bNtfUnicode)
535 {
536 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
537 tvItem->pszText = Alloc (tvItem->cchTextMax);
538 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
539 }
540 else
541 {
542 tvItem->cchTextMax = item->cchTextMax;
543 tvItem->pszText = item->pszText;
544 }
545 }
546 else
547 {
548 tvItem->cchTextMax = 0;
549 tvItem->pszText = NULL;
550 }
551 }
552
553 static BOOL
554 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
555 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
556 {
557 HWND hwnd = infoPtr->hwnd;
558 NMTREEVIEWW nmhdr;
559 BOOL ret;
560
561 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
562 code, action, oldItem, newItem);
563
564 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
565
566 nmhdr.hdr.hwndFrom = hwnd;
567 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
568 nmhdr.hdr.code = get_notifycode(infoPtr, code);
569 nmhdr.action = action;
570
571 if (oldItem)
572 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
573
574 if (newItem)
575 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
576
577 nmhdr.ptDrag.x = 0;
578 nmhdr.ptDrag.y = 0;
579
580 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
581 if (!infoPtr->bNtfUnicode)
582 {
583 Free(nmhdr.itemOld.pszText);
584 Free(nmhdr.itemNew.pszText);
585 }
586 return ret;
587 }
588
589 static BOOL
590 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
591 HTREEITEM dragItem, POINT pt)
592 {
593 HWND hwnd = infoPtr->hwnd;
594 NMTREEVIEWW nmhdr;
595
596 TRACE("code:%d dragitem:%p\n", code, dragItem);
597
598 nmhdr.hdr.hwndFrom = hwnd;
599 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
600 nmhdr.hdr.code = get_notifycode(infoPtr, code);
601 nmhdr.action = 0;
602 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
603 nmhdr.itemNew.hItem = dragItem;
604 nmhdr.itemNew.state = dragItem->state;
605 nmhdr.itemNew.lParam = dragItem->lParam;
606
607 nmhdr.ptDrag.x = pt.x;
608 nmhdr.ptDrag.y = pt.y;
609
610 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
611 }
612
613
614 static BOOL
615 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
616 HDC hdc, RECT rc)
617 {
618 HWND hwnd = infoPtr->hwnd;
619 NMTVCUSTOMDRAW nmcdhdr;
620 LPNMCUSTOMDRAW nmcd;
621
622 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
623
624 nmcd = &nmcdhdr.nmcd;
625 nmcd->hdr.hwndFrom = hwnd;
626 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
627 nmcd->hdr.code = NM_CUSTOMDRAW;
628 nmcd->dwDrawStage = dwDrawStage;
629 nmcd->hdc = hdc;
630 nmcd->rc = rc;
631 nmcd->dwItemSpec = 0;
632 nmcd->uItemState = 0;
633 nmcd->lItemlParam = 0;
634 nmcdhdr.clrText = infoPtr->clrText;
635 nmcdhdr.clrTextBk = infoPtr->clrBk;
636 nmcdhdr.iLevel = 0;
637
638 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)&nmcdhdr);
639 }
640
641
642
643 /* FIXME: need to find out when the flags in uItemState need to be set */
644
645 static BOOL
646 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
647 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
648 NMTVCUSTOMDRAW *nmcdhdr)
649 {
650 HWND hwnd = infoPtr->hwnd;
651 LPNMCUSTOMDRAW nmcd;
652 DWORD dwDrawStage;
653 DWORD_PTR dwItemSpec;
654 UINT uItemState;
655 INT retval;
656
657 dwDrawStage = CDDS_ITEM | uItemDrawState;
658 dwItemSpec = (DWORD_PTR)wineItem;
659 uItemState = 0;
660 if (wineItem->state & TVIS_SELECTED)
661 uItemState |= CDIS_SELECTED;
662 if (wineItem == infoPtr->selectedItem)
663 uItemState |= CDIS_FOCUS;
664 if (wineItem == infoPtr->hotItem)
665 uItemState |= CDIS_HOT;
666
667 nmcd = &nmcdhdr->nmcd;
668 nmcd->hdr.hwndFrom = hwnd;
669 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
670 nmcd->hdr.code = NM_CUSTOMDRAW;
671 nmcd->dwDrawStage = dwDrawStage;
672 nmcd->hdc = hdc;
673 nmcd->rc = wineItem->rect;
674 nmcd->dwItemSpec = dwItemSpec;
675 nmcd->uItemState = uItemState;
676 nmcd->lItemlParam = wineItem->lParam;
677 nmcdhdr->iLevel = wineItem->iLevel;
678
679 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
680 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
681 nmcd->uItemState, nmcd->lItemlParam);
682
683 retval = TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)nmcdhdr);
684
685 return retval;
686 }
687
688 static BOOL
689 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
690 {
691 HWND hwnd = infoPtr->hwnd;
692 NMTVDISPINFOW tvdi;
693 BOOL ret;
694
695 tvdi.hdr.hwndFrom = hwnd;
696 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
697 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
698
699 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
700 &tvdi.item, editItem);
701
702 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
703
704 if (!infoPtr->bNtfUnicode)
705 Free(tvdi.item.pszText);
706
707 return ret;
708 }
709
710 static void
711 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
712 UINT mask)
713 {
714 NMTVDISPINFOEXW callback;
715 HWND hwnd = infoPtr->hwnd;
716
717 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
718 mask &= wineItem->callbackMask;
719
720 if (mask == 0) return;
721
722 callback.hdr.hwndFrom = hwnd;
723 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
724 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
725
726 /* 'state' always contains valid value, as well as 'lParam'.
727 * All other parameters are uninitialized.
728 */
729 callback.item.pszText = wineItem->pszText;
730 callback.item.cchTextMax = wineItem->cchTextMax;
731 callback.item.mask = mask;
732 callback.item.hItem = wineItem;
733 callback.item.state = wineItem->state;
734 callback.item.lParam = wineItem->lParam;
735
736 /* If text is changed we need to recalculate textWidth */
737 if (mask & TVIF_TEXT)
738 wineItem->textWidth = 0;
739
740 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, (LPARAM)&callback);
741
742 /* It may have changed due to a call to SetItem. */
743 mask &= wineItem->callbackMask;
744
745 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
746 {
747 /* Instead of copying text into our buffer user specified its own */
748 if (!infoPtr->bNtfUnicode) {
749 LPWSTR newText;
750 int buflen;
751 int len = MultiByteToWideChar( CP_ACP, 0,
752 (LPSTR)callback.item.pszText, -1,
753 NULL, 0);
754 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
755 newText = ReAlloc(wineItem->pszText, buflen);
756
757 TRACE("returned str %s, len=%d, buflen=%d\n",
758 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
759
760 if (newText)
761 {
762 wineItem->pszText = newText;
763 MultiByteToWideChar( CP_ACP, 0,
764 (LPSTR)callback.item.pszText, -1,
765 wineItem->pszText, buflen/sizeof(WCHAR));
766 wineItem->cchTextMax = buflen/sizeof(WCHAR);
767 }
768 /* If ReAlloc fails we have nothing to do, but keep original text */
769 }
770 else {
771 int len = max(lstrlenW(callback.item.pszText) + 1,
772 TEXT_CALLBACK_SIZE);
773 LPWSTR newText = ReAlloc(wineItem->pszText, len);
774
775 TRACE("returned wstr %s, len=%d\n",
776 debugstr_w(callback.item.pszText), len);
777
778 if (newText)
779 {
780 wineItem->pszText = newText;
781 strcpyW(wineItem->pszText, callback.item.pszText);
782 wineItem->cchTextMax = len;
783 }
784 /* If ReAlloc fails we have nothing to do, but keep original text */
785 }
786 }
787 else if (mask & TVIF_TEXT) {
788 /* User put text into our buffer, that is ok unless A string */
789 if (!infoPtr->bNtfUnicode) {
790 LPWSTR newText;
791 LPWSTR oldText = NULL;
792 int buflen;
793 int len = MultiByteToWideChar( CP_ACP, 0,
794 (LPSTR)callback.item.pszText, -1,
795 NULL, 0);
796 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
797 newText = Alloc(buflen);
798
799 TRACE("same buffer str %s, len=%d, buflen=%d\n",
800 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
801
802 if (newText)
803 {
804 oldText = wineItem->pszText;
805 wineItem->pszText = newText;
806 MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 wineItem->pszText, buflen/sizeof(WCHAR));
809 wineItem->cchTextMax = buflen/sizeof(WCHAR);
810 Free(oldText);
811 }
812 }
813 }
814
815 if (mask & TVIF_IMAGE)
816 wineItem->iImage = callback.item.iImage;
817
818 if (mask & TVIF_SELECTEDIMAGE)
819 wineItem->iSelectedImage = callback.item.iSelectedImage;
820
821 if (mask & TVIF_CHILDREN)
822 wineItem->cChildren = callback.item.cChildren;
823
824 /* These members are now permanently set. */
825 if (callback.item.mask & TVIF_DI_SETITEM)
826 wineItem->callbackMask &= ~callback.item.mask;
827 }
828
829 /***************************************************************************
830 * This function uses cChildren field to decide whether the item has
831 * children or not.
832 * Note: if this returns TRUE, the child items may not actually exist,
833 * they could be virtual.
834 *
835 * Just use wineItem->firstChild to check for physical children.
836 */
837 static BOOL
838 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
839 {
840 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
841
842 return wineItem->cChildren > 0;
843 }
844
845
846 /* Item Position ********************************************************/
847
848 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
849 static VOID
850 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
851 {
852 /* Same effect, different optimisation. */
853 #if 0
854 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
855 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
856 #else
857 BOOL lar = ((infoPtr->dwStyle
858 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
859 > TVS_LINESATROOT);
860 #endif
861
862 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
863 - infoPtr->scrollX;
864 item->stateOffset = item->linesOffset + infoPtr->uIndent;
865 item->imageOffset = item->stateOffset
866 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
867 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
868 }
869
870 static VOID
871 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
872 {
873 HDC hdc;
874 HFONT hOldFont=0;
875 SIZE sz;
876
877 /* DRAW's OM docker creates items like this */
878 if (item->pszText == NULL)
879 {
880 item->textWidth = 0;
881 return;
882 }
883
884 if (hDC != 0)
885 {
886 hdc = hDC;
887 }
888 else
889 {
890 hdc = GetDC(infoPtr->hwnd);
891 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
892 }
893
894 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
895 item->textWidth = sz.cx;
896
897 if (hDC == 0)
898 {
899 SelectObject(hdc, hOldFont);
900 ReleaseDC(0, hdc);
901 }
902 }
903
904 static VOID
905 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
906 {
907 item->rect.top = infoPtr->uItemHeight *
908 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
909
910 item->rect.bottom = item->rect.top
911 + infoPtr->uItemHeight * item->iIntegral - 1;
912
913 item->rect.left = 0;
914 item->rect.right = infoPtr->clientWidth;
915 }
916
917 /* We know that only items after start need their order updated. */
918 static void
919 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
920 {
921 TREEVIEW_ITEM *item;
922 int order;
923
924 if (!start)
925 {
926 start = infoPtr->root->firstChild;
927 order = 0;
928 }
929 else
930 order = start->visibleOrder;
931
932 for (item = start; item != NULL;
933 item = TREEVIEW_GetNextListItem(infoPtr, item))
934 {
935 if (!ISVISIBLE(item) && order > 0)
936 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
937 item->visibleOrder = order;
938 order += item->iIntegral;
939 }
940
941 infoPtr->maxVisibleOrder = order;
942
943 for (item = start; item != NULL;
944 item = TREEVIEW_GetNextListItem(infoPtr, item))
945 {
946 TREEVIEW_ComputeItemRect(infoPtr, item);
947 }
948 }
949
950
951 /* Update metrics of all items in selected subtree.
952 * root must be expanded
953 */
954 static VOID
955 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
956 {
957 TREEVIEW_ITEM *sibling;
958 HDC hdc;
959 HFONT hOldFont;
960
961 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
962 return;
963
964 root->state &= ~TVIS_EXPANDED;
965 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
966 root->state |= TVIS_EXPANDED;
967
968 hdc = GetDC(infoPtr->hwnd);
969 hOldFont = SelectObject(hdc, infoPtr->hFont);
970
971 for (; root != sibling;
972 root = TREEVIEW_GetNextListItem(infoPtr, root))
973 {
974 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
975
976 if (root->callbackMask & TVIF_TEXT)
977 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
978
979 if (root->textWidth == 0)
980 {
981 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
982 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
983 }
984 }
985
986 SelectObject(hdc, hOldFont);
987 ReleaseDC(infoPtr->hwnd, hdc);
988 }
989
990 /* Item Allocation **********************************************************/
991
992 static TREEVIEW_ITEM *
993 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
994 {
995 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
996
997 if (!newItem)
998 return NULL;
999
1000 /* I_IMAGENONE would make more sense but this is neither what is
1001 * documented (MSDN doesn't specify) nor what Windows actually does
1002 * (it sets it to zero)... and I can so imagine an application using
1003 * inc/dec to toggle the images. */
1004 newItem->iImage = 0;
1005 newItem->iSelectedImage = 0;
1006
1007 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1008 {
1009 Free(newItem);
1010 return NULL;
1011 }
1012
1013 return newItem;
1014 }
1015
1016 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1017 * free item->pszText. */
1018 static void
1019 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1020 {
1021 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1022 if (infoPtr->selectedItem == item)
1023 infoPtr->selectedItem = NULL;
1024 if (infoPtr->hotItem == item)
1025 infoPtr->hotItem = NULL;
1026 if (infoPtr->focusedItem == item)
1027 infoPtr->focusedItem = NULL;
1028 if (infoPtr->firstVisible == item)
1029 infoPtr->firstVisible = NULL;
1030 if (infoPtr->dropItem == item)
1031 infoPtr->dropItem = NULL;
1032 if (infoPtr->insertMarkItem == item)
1033 infoPtr->insertMarkItem = NULL;
1034 Free(item);
1035 }
1036
1037
1038 /* Item Insertion *******************************************************/
1039
1040 /***************************************************************************
1041 * This method inserts newItem before sibling as a child of parent.
1042 * sibling can be NULL, but only if parent has no children.
1043 */
1044 static void
1045 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1046 TREEVIEW_ITEM *parent)
1047 {
1048 assert(parent != NULL);
1049
1050 if (sibling != NULL)
1051 {
1052 assert(sibling->parent == parent);
1053
1054 if (sibling->prevSibling != NULL)
1055 sibling->prevSibling->nextSibling = newItem;
1056
1057 newItem->prevSibling = sibling->prevSibling;
1058 sibling->prevSibling = newItem;
1059 }
1060 else
1061 newItem->prevSibling = NULL;
1062
1063 newItem->nextSibling = sibling;
1064
1065 if (parent->firstChild == sibling)
1066 parent->firstChild = newItem;
1067
1068 if (parent->lastChild == NULL)
1069 parent->lastChild = newItem;
1070 }
1071
1072 /***************************************************************************
1073 * This method inserts newItem after sibling as a child of parent.
1074 * sibling can be NULL, but only if parent has no children.
1075 */
1076 static void
1077 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1078 TREEVIEW_ITEM *parent)
1079 {
1080 assert(parent != NULL);
1081
1082 if (sibling != NULL)
1083 {
1084 assert(sibling->parent == parent);
1085
1086 if (sibling->nextSibling != NULL)
1087 sibling->nextSibling->prevSibling = newItem;
1088
1089 newItem->nextSibling = sibling->nextSibling;
1090 sibling->nextSibling = newItem;
1091 }
1092 else
1093 newItem->nextSibling = NULL;
1094
1095 newItem->prevSibling = sibling;
1096
1097 if (parent->lastChild == sibling)
1098 parent->lastChild = newItem;
1099
1100 if (parent->firstChild == NULL)
1101 parent->firstChild = newItem;
1102 }
1103
1104 static BOOL
1105 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1106 const TVITEMEXW *tvItem, BOOL isW)
1107 {
1108 UINT callbackClear = 0;
1109 UINT callbackSet = 0;
1110
1111 TRACE("item %p\n", wineItem);
1112 /* Do this first in case it fails. */
1113 if (tvItem->mask & TVIF_TEXT)
1114 {
1115 wineItem->textWidth = 0; /* force width recalculation */
1116 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1117 {
1118 int len;
1119 LPWSTR newText;
1120 if (isW)
1121 len = lstrlenW(tvItem->pszText) + 1;
1122 else
1123 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1124
1125 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1126
1127 if (newText == NULL) return FALSE;
1128
1129 callbackClear |= TVIF_TEXT;
1130
1131 wineItem->pszText = newText;
1132 wineItem->cchTextMax = len;
1133 if (isW)
1134 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1135 else
1136 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1137 wineItem->pszText, len);
1138
1139 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1140 }
1141 else
1142 {
1143 callbackSet |= TVIF_TEXT;
1144
1145 wineItem->pszText = ReAlloc(wineItem->pszText,
1146 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1147 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1148 TRACE("setting callback, item %p\n", wineItem);
1149 }
1150 }
1151
1152 if (tvItem->mask & TVIF_CHILDREN)
1153 {
1154 wineItem->cChildren = tvItem->cChildren;
1155
1156 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1157 callbackSet |= TVIF_CHILDREN;
1158 else
1159 callbackClear |= TVIF_CHILDREN;
1160 }
1161
1162 if (tvItem->mask & TVIF_IMAGE)
1163 {
1164 wineItem->iImage = tvItem->iImage;
1165
1166 if (wineItem->iImage == I_IMAGECALLBACK)
1167 callbackSet |= TVIF_IMAGE;
1168 else
1169 callbackClear |= TVIF_IMAGE;
1170 }
1171
1172 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1173 {
1174 wineItem->iSelectedImage = tvItem->iSelectedImage;
1175
1176 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_SELECTEDIMAGE;
1178 else
1179 callbackClear |= TVIF_SELECTEDIMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_PARAM)
1183 wineItem->lParam = tvItem->lParam;
1184
1185 /* If the application sets TVIF_INTEGRAL without
1186 * supplying a TVITEMEX structure, it's toast. */
1187 if (tvItem->mask & TVIF_INTEGRAL)
1188 wineItem->iIntegral = tvItem->iIntegral;
1189
1190 if (tvItem->mask & TVIF_STATE)
1191 {
1192 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1193 tvItem->stateMask);
1194 wineItem->state &= ~tvItem->stateMask;
1195 wineItem->state |= (tvItem->state & tvItem->stateMask);
1196 }
1197
1198 wineItem->callbackMask |= callbackSet;
1199 wineItem->callbackMask &= ~callbackClear;
1200
1201 return TRUE;
1202 }
1203
1204 /* Note that the new item is pre-zeroed. */
1205 static LRESULT
1206 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1207 {
1208 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1209 HTREEITEM insertAfter;
1210 TREEVIEW_ITEM *newItem, *parentItem;
1211 BOOL bTextUpdated = FALSE;
1212
1213 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1214 {
1215 parentItem = infoPtr->root;
1216 }
1217 else
1218 {
1219 parentItem = ptdi->hParent;
1220
1221 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1222 {
1223 WARN("invalid parent %p\n", parentItem);
1224 return 0;
1225 }
1226 }
1227
1228 insertAfter = ptdi->hInsertAfter;
1229
1230 /* Validate this now for convenience. */
1231 switch ((DWORD_PTR)insertAfter)
1232 {
1233 case (DWORD_PTR)TVI_FIRST:
1234 case (DWORD_PTR)TVI_LAST:
1235 case (DWORD_PTR)TVI_SORT:
1236 break;
1237
1238 default:
1239 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1240 insertAfter->parent != parentItem)
1241 {
1242 WARN("invalid insert after %p\n", insertAfter);
1243 insertAfter = TVI_LAST;
1244 }
1245 }
1246
1247 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1248 (tvItem->mask & TVIF_TEXT)
1249 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1250 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1251 : "<no label>");
1252
1253 newItem = TREEVIEW_AllocateItem(infoPtr);
1254 if (newItem == NULL)
1255 return 0;
1256
1257 newItem->parent = parentItem;
1258 newItem->iIntegral = 1;
1259 newItem->visibleOrder = -1;
1260
1261 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1262 return 0;
1263
1264 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1265
1266 infoPtr->uNumItems++;
1267
1268 switch ((DWORD_PTR)insertAfter)
1269 {
1270 case (DWORD_PTR)TVI_FIRST:
1271 {
1272 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1273 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1274 if (infoPtr->firstVisible == originalFirst)
1275 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1276 }
1277 break;
1278
1279 case (DWORD_PTR)TVI_LAST:
1280 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1281 break;
1282
1283 /* hInsertAfter names a specific item we want to insert after */
1284 default:
1285 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1286 break;
1287
1288 case (DWORD_PTR)TVI_SORT:
1289 {
1290 TREEVIEW_ITEM *aChild;
1291 TREEVIEW_ITEM *previousChild = NULL;
1292 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1293 BOOL bItemInserted = FALSE;
1294
1295 aChild = parentItem->firstChild;
1296
1297 bTextUpdated = TRUE;
1298 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1299
1300 /* Iterate the parent children to see where we fit in */
1301 while (aChild != NULL)
1302 {
1303 INT comp;
1304
1305 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1306 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1307
1308 if (comp < 0) /* we are smaller than the current one */
1309 {
1310 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1311 if (infoPtr->firstVisible == originalFirst &&
1312 aChild == originalFirst)
1313 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1314 bItemInserted = TRUE;
1315 break;
1316 }
1317 else if (comp > 0) /* we are bigger than the current one */
1318 {
1319 previousChild = aChild;
1320
1321 /* This will help us to exit if there is no more sibling */
1322 aChild = (aChild->nextSibling == 0)
1323 ? NULL
1324 : aChild->nextSibling;
1325
1326 /* Look at the next item */
1327 continue;
1328 }
1329 else if (comp == 0)
1330 {
1331 /*
1332 * An item with this name is already existing, therefore,
1333 * we add after the one we found
1334 */
1335 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1336 bItemInserted = TRUE;
1337 break;
1338 }
1339 }
1340
1341 /*
1342 * we reach the end of the child list and the item has not
1343 * yet been inserted, therefore, insert it after the last child.
1344 */
1345 if ((!bItemInserted) && (aChild == NULL))
1346 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1347
1348 break;
1349 }
1350 }
1351
1352
1353 TRACE("new item %p; parent %p, mask %x\n", newItem,
1354 newItem->parent, tvItem->mask);
1355
1356 newItem->iLevel = newItem->parent->iLevel + 1;
1357
1358 if (newItem->parent->cChildren == 0)
1359 newItem->parent->cChildren = 1;
1360
1361 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1362 {
1363 if (STATEIMAGEINDEX(newItem->state) == 0)
1364 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1365 }
1366
1367 if (infoPtr->firstVisible == NULL)
1368 infoPtr->firstVisible = newItem;
1369
1370 TREEVIEW_VerifyTree(infoPtr);
1371
1372 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1373
1374 if (parentItem == infoPtr->root ||
1375 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1376 {
1377 TREEVIEW_ITEM *item;
1378 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1379
1380 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1381 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1382
1383 if (!bTextUpdated)
1384 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1385
1386 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1387 TREEVIEW_UpdateScrollBars(infoPtr);
1388 /*
1389 * if the item was inserted in a visible part of the tree,
1390 * invalidate it, as well as those after it
1391 */
1392 for (item = newItem;
1393 item != NULL;
1394 item = TREEVIEW_GetNextListItem(infoPtr, item))
1395 TREEVIEW_Invalidate(infoPtr, item);
1396 }
1397 else
1398 {
1399 /* refresh treeview if newItem is the first item inserted under parentItem */
1400 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1401 {
1402 /* parent got '+' - update it */
1403 TREEVIEW_Invalidate(infoPtr, parentItem);
1404 }
1405 }
1406
1407 return (LRESULT)newItem;
1408 }
1409
1410 /* Item Deletion ************************************************************/
1411 static void
1412 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1413
1414 static void
1415 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1416 {
1417 TREEVIEW_ITEM *kill = parentItem->firstChild;
1418
1419 while (kill != NULL)
1420 {
1421 TREEVIEW_ITEM *next = kill->nextSibling;
1422
1423 TREEVIEW_RemoveItem(infoPtr, kill);
1424
1425 kill = next;
1426 }
1427
1428 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1429 assert(parentItem->firstChild == NULL);
1430 assert(parentItem->lastChild == NULL);
1431 }
1432
1433 static void
1434 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1435 {
1436 TREEVIEW_ITEM *parentItem = item->parent;
1437
1438 assert(item != NULL);
1439 assert(item->parent != NULL); /* i.e. it must not be the root */
1440
1441 if (parentItem->firstChild == item)
1442 parentItem->firstChild = item->nextSibling;
1443
1444 if (parentItem->lastChild == item)
1445 parentItem->lastChild = item->prevSibling;
1446
1447 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1448 && parentItem->cChildren > 0)
1449 parentItem->cChildren = 0;
1450
1451 if (item->prevSibling)
1452 item->prevSibling->nextSibling = item->nextSibling;
1453
1454 if (item->nextSibling)
1455 item->nextSibling->prevSibling = item->prevSibling;
1456 }
1457
1458 static void
1459 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1460 {
1461 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1462
1463 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1464 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1465
1466 if (wineItem->firstChild)
1467 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1468
1469 TREEVIEW_UnlinkItem(wineItem);
1470
1471 infoPtr->uNumItems--;
1472
1473 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1474 Free(wineItem->pszText);
1475
1476 TREEVIEW_FreeItem(infoPtr, wineItem);
1477 }
1478
1479
1480 /* Empty out the tree. */
1481 static void
1482 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1483 {
1484 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1485
1486 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1487 }
1488
1489 static LRESULT
1490 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1491 {
1492 TREEVIEW_ITEM *newSelection = NULL;
1493 TREEVIEW_ITEM *newFirstVisible = NULL;
1494 TREEVIEW_ITEM *parent, *prev = NULL;
1495 BOOL visible = FALSE;
1496
1497 if (wineItem == TVI_ROOT)
1498 {
1499 TRACE("TVI_ROOT\n");
1500 parent = infoPtr->root;
1501 newSelection = NULL;
1502 visible = TRUE;
1503 TREEVIEW_RemoveTree(infoPtr);
1504 }
1505 else
1506 {
1507 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1508 return FALSE;
1509
1510 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1511 parent = wineItem->parent;
1512
1513 if (ISVISIBLE(wineItem))
1514 {
1515 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1516 visible = TRUE;
1517 }
1518
1519 if (infoPtr->selectedItem != NULL
1520 && (wineItem == infoPtr->selectedItem
1521 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1522 {
1523 if (wineItem->nextSibling)
1524 newSelection = wineItem->nextSibling;
1525 else if (wineItem->parent != infoPtr->root)
1526 newSelection = wineItem->parent;
1527 else
1528 newSelection = wineItem->prevSibling;
1529 TRACE("newSelection = %p\n", newSelection);
1530 }
1531
1532 if (infoPtr->firstVisible == wineItem)
1533 {
1534 if (wineItem->nextSibling)
1535 newFirstVisible = wineItem->nextSibling;
1536 else if (wineItem->prevSibling)
1537 newFirstVisible = wineItem->prevSibling;
1538 else if (wineItem->parent != infoPtr->root)
1539 newFirstVisible = wineItem->parent;
1540 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1541 }
1542 else
1543 newFirstVisible = infoPtr->firstVisible;
1544
1545 TREEVIEW_RemoveItem(infoPtr, wineItem);
1546 }
1547
1548 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1549 if (!infoPtr->selectedItem && newSelection)
1550 {
1551 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1552 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1553 }
1554
1555 /* Validate insertMark dropItem.
1556 * hotItem ??? - used for comparison only.
1557 */
1558 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1559 infoPtr->insertMarkItem = 0;
1560
1561 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1562 infoPtr->dropItem = 0;
1563
1564 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1565 newFirstVisible = infoPtr->root->firstChild;
1566
1567 TREEVIEW_VerifyTree(infoPtr);
1568
1569 if (!infoPtr->bRedraw) return TRUE;
1570
1571 if (visible)
1572 {
1573 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1574 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1575 TREEVIEW_UpdateScrollBars(infoPtr);
1576 TREEVIEW_Invalidate(infoPtr, NULL);
1577 }
1578 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1579 {
1580 /* parent lost '+/-' - update it */
1581 TREEVIEW_Invalidate(infoPtr, parent);
1582 }
1583
1584 return TRUE;
1585 }
1586
1587
1588 /* Get/Set Messages *********************************************************/
1589 static LRESULT
1590 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1591 {
1592 infoPtr->bRedraw = wParam ? TRUE : FALSE;
1593
1594 if (infoPtr->bRedraw)
1595 {
1596 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1597 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1598 TREEVIEW_UpdateScrollBars(infoPtr);
1599 TREEVIEW_Invalidate(infoPtr, NULL);
1600 }
1601 return 0;
1602 }
1603
1604 static LRESULT
1605 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1606 {
1607 TRACE("\n");
1608 return infoPtr->uIndent;
1609 }
1610
1611 static LRESULT
1612 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1613 {
1614 TRACE("\n");
1615
1616 if (newIndent < MINIMUM_INDENT)
1617 newIndent = MINIMUM_INDENT;
1618
1619 if (infoPtr->uIndent != newIndent)
1620 {
1621 infoPtr->uIndent = newIndent;
1622 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1623 TREEVIEW_UpdateScrollBars(infoPtr);
1624 TREEVIEW_Invalidate(infoPtr, NULL);
1625 }
1626
1627 return 0;
1628 }
1629
1630
1631 static LRESULT
1632 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1633 {
1634 TRACE("\n");
1635 return (LRESULT)infoPtr->hwndToolTip;
1636 }
1637
1638 static LRESULT
1639 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1640 {
1641 HWND prevToolTip;
1642
1643 TRACE("\n");
1644 prevToolTip = infoPtr->hwndToolTip;
1645 infoPtr->hwndToolTip = hwndTT;
1646
1647 return (LRESULT)prevToolTip;
1648 }
1649
1650 static LRESULT
1651 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1652 {
1653 BOOL rc = infoPtr->bNtfUnicode;
1654 infoPtr->bNtfUnicode = fUnicode;
1655 return rc;
1656 }
1657
1658 static LRESULT
1659 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1660 {
1661 return infoPtr->bNtfUnicode;
1662 }
1663
1664 static LRESULT
1665 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1666 {
1667 return infoPtr->uScrollTime;
1668 }
1669
1670 static LRESULT
1671 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1672 {
1673 UINT uOldScrollTime = infoPtr->uScrollTime;
1674
1675 infoPtr->uScrollTime = min(uScrollTime, 100);
1676
1677 return uOldScrollTime;
1678 }
1679
1680
1681 static LRESULT
1682 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1683 {
1684 TRACE("\n");
1685
1686 switch (wParam)
1687 {
1688 case (WPARAM)TVSIL_NORMAL:
1689 return (LRESULT)infoPtr->himlNormal;
1690
1691 case (WPARAM)TVSIL_STATE:
1692 return (LRESULT)infoPtr->himlState;
1693
1694 default:
1695 return 0;
1696 }
1697 }
1698
1699 #define TVHEIGHT_MIN 16
1700 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1701
1702 /* Compute the natural height for items. */
1703 static UINT
1704 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1705 {
1706 TEXTMETRICW tm;
1707 HDC hdc = GetDC(0);
1708 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1709 UINT height;
1710
1711 /* Height is the maximum of:
1712 * 16 (a hack because our fonts are tiny), and
1713 * The text height + border & margin, and
1714 * The size of the normal image list
1715 */
1716 GetTextMetricsW(hdc, &tm);
1717 SelectObject(hdc, hOldFont);
1718 ReleaseDC(0, hdc);
1719
1720 height = TVHEIGHT_MIN;
1721 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1722 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1723 if (height < infoPtr->normalImageHeight)
1724 height = infoPtr->normalImageHeight;
1725
1726 /* Round down, unless we support odd ("non even") heights. */
1727 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1728 height &= ~1;
1729
1730 return height;
1731 }
1732
1733 static LRESULT
1734 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1735 {
1736 HIMAGELIST himlOld = 0;
1737 int oldWidth = infoPtr->normalImageWidth;
1738 int oldHeight = infoPtr->normalImageHeight;
1739
1740
1741 TRACE("%lx,%p\n", wParam, himlNew);
1742
1743 switch (wParam)
1744 {
1745 case (WPARAM)TVSIL_NORMAL:
1746 himlOld = infoPtr->himlNormal;
1747 infoPtr->himlNormal = himlNew;
1748
1749 if (himlNew != NULL)
1750 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1751 &infoPtr->normalImageHeight);
1752 else
1753 {
1754 infoPtr->normalImageWidth = 0;
1755 infoPtr->normalImageHeight = 0;
1756 }
1757
1758 break;
1759
1760 case (WPARAM)TVSIL_STATE:
1761 himlOld = infoPtr->himlState;
1762 infoPtr->himlState = himlNew;
1763
1764 if (himlNew != NULL)
1765 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1766 &infoPtr->stateImageHeight);
1767 else
1768 {
1769 infoPtr->stateImageWidth = 0;
1770 infoPtr->stateImageHeight = 0;
1771 }
1772
1773 break;
1774 }
1775
1776 if (oldWidth != infoPtr->normalImageWidth ||
1777 oldHeight != infoPtr->normalImageHeight)
1778 {
1779 BOOL bRecalcVisible = FALSE;
1780
1781 if (oldHeight != infoPtr->normalImageHeight &&
1782 !infoPtr->bHeightSet)
1783 {
1784 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1785 bRecalcVisible = TRUE;
1786 }
1787
1788 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1789 infoPtr->normalImageWidth != infoPtr->uIndent)
1790 {
1791 infoPtr->uIndent = infoPtr->normalImageWidth;
1792 bRecalcVisible = TRUE;
1793 }
1794
1795 if (bRecalcVisible)
1796 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1797
1798 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1799 TREEVIEW_UpdateScrollBars(infoPtr);
1800 }
1801
1802 TREEVIEW_Invalidate(infoPtr, NULL);
1803
1804 return (LRESULT)himlOld;
1805 }
1806
1807 static LRESULT
1808 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1809 {
1810 INT prevHeight = infoPtr->uItemHeight;
1811
1812 TRACE("%d\n", newHeight);
1813 if (newHeight == -1)
1814 {
1815 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1816 infoPtr->bHeightSet = FALSE;
1817 }
1818 else
1819 {
1820 infoPtr->uItemHeight = newHeight;
1821 infoPtr->bHeightSet = TRUE;
1822 }
1823
1824 /* Round down, unless we support odd ("non even") heights. */
1825 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1826 infoPtr->uItemHeight &= ~1;
1827
1828 if (infoPtr->uItemHeight != prevHeight)
1829 {
1830 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1831 TREEVIEW_UpdateScrollBars(infoPtr);
1832 TREEVIEW_Invalidate(infoPtr, NULL);
1833 }
1834
1835 return prevHeight;
1836 }
1837
1838 static LRESULT
1839 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1840 {
1841 TRACE("\n");
1842 return infoPtr->uItemHeight;
1843 }
1844
1845
1846 static LRESULT
1847 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1848 {
1849 TRACE("%p\n", infoPtr->hFont);
1850 return (LRESULT)infoPtr->hFont;
1851 }
1852
1853
1854 static INT CALLBACK
1855 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1856 {
1857 (void)unused;
1858
1859 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1860
1861 return 1;
1862 }
1863
1864 static LRESULT
1865 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1866 {
1867 UINT uHeight = infoPtr->uItemHeight;
1868
1869 TRACE("%p %i\n", hFont, bRedraw);
1870
1871 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1872
1873 DeleteObject(infoPtr->hBoldFont);
1874 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1875 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1876
1877 if (!infoPtr->bHeightSet)
1878 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1879
1880 if (uHeight != infoPtr->uItemHeight)
1881 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1882
1883 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1884
1885 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1886 TREEVIEW_UpdateScrollBars(infoPtr);
1887
1888 if (bRedraw)
1889 TREEVIEW_Invalidate(infoPtr, NULL);
1890
1891 return 0;
1892 }
1893
1894
1895 static LRESULT
1896 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1897 {
1898 TRACE("\n");
1899 return (LRESULT)infoPtr->clrLine;
1900 }
1901
1902 static LRESULT
1903 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1904 {
1905 COLORREF prevColor = infoPtr->clrLine;
1906
1907 TRACE("\n");
1908 infoPtr->clrLine = color;
1909 return (LRESULT)prevColor;
1910 }
1911
1912
1913 static LRESULT
1914 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1915 {
1916 TRACE("\n");
1917 return (LRESULT)infoPtr->clrText;
1918 }
1919
1920 static LRESULT
1921 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1922 {
1923 COLORREF prevColor = infoPtr->clrText;
1924
1925 TRACE("\n");
1926 infoPtr->clrText = color;
1927
1928 if (infoPtr->clrText != prevColor)
1929 TREEVIEW_Invalidate(infoPtr, NULL);
1930
1931 return (LRESULT)prevColor;
1932 }
1933
1934
1935 static LRESULT
1936 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1937 {
1938 TRACE("\n");
1939 return (LRESULT)infoPtr->clrBk;
1940 }
1941
1942 static LRESULT
1943 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1944 {
1945 COLORREF prevColor = infoPtr->clrBk;
1946
1947 TRACE("\n");
1948 infoPtr->clrBk = newColor;
1949
1950 if (newColor != prevColor)
1951 TREEVIEW_Invalidate(infoPtr, NULL);
1952
1953 return (LRESULT)prevColor;
1954 }
1955
1956
1957 static LRESULT
1958 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1959 {
1960 TRACE("\n");
1961 return (LRESULT)infoPtr->clrInsertMark;
1962 }
1963
1964 static LRESULT
1965 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1966 {
1967 COLORREF prevColor = infoPtr->clrInsertMark;
1968
1969 TRACE("%x\n", color);
1970 infoPtr->clrInsertMark = color;
1971
1972 return (LRESULT)prevColor;
1973 }
1974
1975
1976 static LRESULT
1977 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1978 {
1979 TRACE("%d %p\n", wParam, item);
1980
1981 if (!TREEVIEW_ValidItem(infoPtr, item))
1982 return 0;
1983
1984 infoPtr->insertBeforeorAfter = wParam;
1985 infoPtr->insertMarkItem = item;
1986
1987 TREEVIEW_Invalidate(infoPtr, NULL);
1988
1989 return 1;
1990 }
1991
1992
1993 /************************************************************************
1994 * Some serious braindamage here. lParam is a pointer to both the
1995 * input HTREEITEM and the output RECT.
1996 */
1997 static LRESULT
1998 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1999 {
2000 TREEVIEW_ITEM *wineItem;
2001 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2002
2003 TRACE("\n");
2004 /*
2005 * validate parameters
2006 */
2007 if (pItem == NULL)
2008 return FALSE;
2009
2010 wineItem = *pItem;
2011 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2012 return FALSE;
2013
2014 /*
2015 * If wParam is TRUE return the text size otherwise return
2016 * the whole item size
2017 */
2018 if (fTextRect)
2019 {
2020 /* Windows does not send TVN_GETDISPINFO here. */
2021
2022 lpRect->top = wineItem->rect.top;
2023 lpRect->bottom = wineItem->rect.bottom;
2024
2025 lpRect->left = wineItem->textOffset;
2026 if (!wineItem->textWidth)
2027 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2028
2029 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2030 }
2031 else
2032 {
2033 *lpRect = wineItem->rect;
2034 }
2035
2036 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2037
2038 return TRUE;
2039 }
2040
2041 static inline LRESULT
2042 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2043 {
2044 /* Surprise! This does not take integral height into account. */
2045 return infoPtr->clientHeight / infoPtr->uItemHeight;
2046 }
2047
2048
2049 static LRESULT
2050 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2051 {
2052 TREEVIEW_ITEM *wineItem;
2053
2054 wineItem = tvItem->hItem;
2055 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2056 return FALSE;
2057
2058 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2059
2060 if (tvItem->mask & TVIF_CHILDREN)
2061 {
2062 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2063 FIXME("I_CHILDRENCALLBACK not supported\n");
2064 tvItem->cChildren = wineItem->cChildren;
2065 }
2066
2067 if (tvItem->mask & TVIF_HANDLE)
2068 tvItem->hItem = wineItem;
2069
2070 if (tvItem->mask & TVIF_IMAGE)
2071 tvItem->iImage = wineItem->iImage;
2072
2073 if (tvItem->mask & TVIF_INTEGRAL)
2074 tvItem->iIntegral = wineItem->iIntegral;
2075
2076 /* undocumented: windows ignores TVIF_PARAM and
2077 * * always sets lParam
2078 */
2079 tvItem->lParam = wineItem->lParam;
2080
2081 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2082 tvItem->iSelectedImage = wineItem->iSelectedImage;
2083
2084 if (tvItem->mask & TVIF_STATE)
2085 /* Careful here - Windows ignores the stateMask when you get the state
2086 That contradicts the documentation, but makes more common sense, masking
2087 retrieval in this way seems overkill */
2088 tvItem->state = wineItem->state;
2089
2090 if (tvItem->mask & TVIF_TEXT)
2091 {
2092 if (wineItem->pszText == NULL)
2093 {
2094 if (tvItem->cchTextMax > 0)
2095 tvItem->pszText[0] = '\0';
2096 }
2097 else if (isW)
2098 {
2099 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2100 {
2101 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2102 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2103 }
2104 else
2105 {
2106 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2107 }
2108 }
2109 else
2110 {
2111 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2112 {
2113 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2114 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2115 }
2116 else
2117 {
2118 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2119 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2120 }
2121 }
2122 }
2123 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2124 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2125
2126 return TRUE;
2127 }
2128
2129 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2130 * which is wrong. */
2131 static LRESULT
2132 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2133 {
2134 TREEVIEW_ITEM *wineItem;
2135 TREEVIEW_ITEM originalItem;
2136
2137 wineItem = tvItem->hItem;
2138
2139 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2140 tvItem->mask);
2141
2142 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2143 return FALSE;
2144
2145 /* store the original item values */
2146 originalItem = *wineItem;
2147
2148 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2149 return FALSE;
2150
2151 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2152 if ((tvItem->mask & TVIF_TEXT
2153 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2154 && ISVISIBLE(wineItem))
2155 {
2156 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2157 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2158 }
2159
2160 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2161 {
2162 /* The refresh updates everything, but we can't wait until then. */
2163 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2164
2165 /* if any of the item's values changed and it's not a callback, redraw the item */
2166 if (item_changed(&originalItem, wineItem, tvItem))
2167 {
2168 if (tvItem->mask & TVIF_INTEGRAL)
2169 {
2170 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2171 TREEVIEW_UpdateScrollBars(infoPtr);
2172
2173 TREEVIEW_Invalidate(infoPtr, NULL);
2174 }
2175 else
2176 {
2177 TREEVIEW_UpdateScrollBars(infoPtr);
2178 TREEVIEW_Invalidate(infoPtr, wineItem);
2179 }
2180 }
2181 }
2182
2183 return TRUE;
2184 }
2185
2186 static LRESULT
2187 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2188 {
2189 TRACE("\n");
2190
2191 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2192 return 0;
2193
2194 return (wineItem->state & mask);
2195 }
2196
2197 static LRESULT
2198 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2199 {
2200 TREEVIEW_ITEM *retval;
2201
2202 retval = 0;
2203
2204 /* handle all the global data here */
2205 switch (which)
2206 {
2207 case TVGN_CHILD: /* Special case: child of 0 is root */
2208 if (wineItem)
2209 break;
2210 /* fall through */
2211 case TVGN_ROOT:
2212 retval = infoPtr->root->firstChild;
2213 break;
2214
2215 case TVGN_CARET:
2216 retval = infoPtr->selectedItem;
2217 break;
2218
2219 case TVGN_FIRSTVISIBLE:
2220 retval = infoPtr->firstVisible;
2221 break;
2222
2223 case TVGN_DROPHILITE:
2224 retval = infoPtr->dropItem;
2225 break;
2226
2227 case TVGN_LASTVISIBLE:
2228 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2229 break;
2230 }
2231
2232 if (retval)
2233 {
2234 TRACE("flags:%x, returns %p\n", which, retval);
2235 return (LRESULT)retval;
2236 }
2237
2238 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2239
2240 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2241 return FALSE;
2242
2243 switch (which)
2244 {
2245 case TVGN_NEXT:
2246 retval = wineItem->nextSibling;
2247 break;
2248 case TVGN_PREVIOUS:
2249 retval = wineItem->prevSibling;
2250 break;
2251 case TVGN_PARENT:
2252 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2253 break;
2254 case TVGN_CHILD:
2255 retval = wineItem->firstChild;
2256 break;
2257 case TVGN_NEXTVISIBLE:
2258 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2259 break;
2260 case TVGN_PREVIOUSVISIBLE:
2261 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2262 break;
2263 default:
2264 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2265 break;
2266 }
2267
2268 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2269 return (LRESULT)retval;
2270 }
2271
2272
2273 static LRESULT
2274 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2275 {
2276 TRACE(" %d\n", infoPtr->uNumItems);
2277 return (LRESULT)infoPtr->uNumItems;
2278 }
2279
2280 static VOID
2281 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2282 {
2283 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2284 {
2285 static const unsigned int state_table[] = { 0, 2, 1 };
2286
2287 unsigned int state;
2288
2289 state = STATEIMAGEINDEX(item->state);
2290 TRACE("state:%x\n", state);
2291 item->state &= ~TVIS_STATEIMAGEMASK;
2292
2293 if (state < 3)
2294 state = state_table[state];
2295
2296 item->state |= INDEXTOSTATEIMAGEMASK(state);
2297
2298 TRACE("state:%x\n", state);
2299 TREEVIEW_Invalidate(infoPtr, item);
2300 }
2301 }
2302
2303
2304 /* Painting *************************************************************/
2305
2306 /* Draw the lines and expand button for an item. Also draws one section
2307 * of the line from item's parent to item's parent's next sibling. */
2308 static void
2309 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2310 {
2311 LONG centerx, centery;
2312 BOOL lar = ((infoPtr->dwStyle
2313 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2314 > TVS_LINESATROOT);
2315 HBRUSH hbr, hbrOld;
2316 COLORREF clrBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2317 infoPtr->clrBk;
2318
2319 if (!lar && item->iLevel == 0)
2320 return;
2321
2322 hbr = CreateSolidBrush(clrBk);
2323 hbrOld = SelectObject(hdc, hbr);
2324
2325 centerx = (item->linesOffset + item->stateOffset) / 2;
2326 centery = (item->rect.top + item->rect.bottom) / 2;
2327
2328 if (infoPtr->dwStyle & TVS_HASLINES)
2329 {
2330 HPEN hOldPen, hNewPen;
2331 HTREEITEM parent;
2332 LOGBRUSH lb;
2333
2334 /* Get a dotted grey pen */
2335 lb.lbStyle = BS_SOLID;
2336 lb.lbColor = infoPtr->clrLine;
2337 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2338 hOldPen = SelectObject(hdc, hNewPen);
2339
2340 /* Make sure the center is on a dot (using +2 instead
2341 * of +1 gives us pixel-by-pixel compat with native) */
2342 centery = (centery + 2) & ~1;
2343
2344 MoveToEx(hdc, item->stateOffset, centery, NULL);
2345 LineTo(hdc, centerx - 1, centery);
2346
2347 if (item->prevSibling || item->parent != infoPtr->root)
2348 {
2349 MoveToEx(hdc, centerx, item->rect.top, NULL);
2350 LineTo(hdc, centerx, centery);
2351 }
2352
2353 if (item->nextSibling)
2354 {
2355 MoveToEx(hdc, centerx, centery, NULL);
2356 LineTo(hdc, centerx, item->rect.bottom + 1);
2357 }
2358
2359 /* Draw the line from our parent to its next sibling. */
2360 parent = item->parent;
2361 while (parent != infoPtr->root)
2362 {
2363 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2364
2365 if (parent->nextSibling
2366 /* skip top-levels unless TVS_LINESATROOT */
2367 && parent->stateOffset > parent->linesOffset)
2368 {
2369 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2370 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2371 }
2372
2373 parent = parent->parent;
2374 }
2375
2376 SelectObject(hdc, hOldPen);
2377 DeleteObject(hNewPen);
2378 }
2379
2380 /*
2381 * Display the (+/-) signs
2382 */
2383
2384 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2385 {
2386 if (item->cChildren)
2387 {
2388 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2389 if (theme)
2390 {
2391 RECT glyphRect = item->rect;
2392 glyphRect.left = item->linesOffset;
2393 glyphRect.right = item->stateOffset;
2394 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2395 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2396 &glyphRect, NULL);
2397 }
2398 else
2399 {
2400 LONG height = item->rect.bottom - item->rect.top;
2401 LONG width = item->stateOffset - item->linesOffset;
2402 LONG rectsize = min(height, width) / 4;
2403 /* plussize = ceil(rectsize * 3/4) */
2404 LONG plussize = (rectsize + 1) * 3 / 4;
2405
2406 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2407 HPEN hOldPen = SelectObject(hdc, hNewPen);
2408
2409 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2410 centerx + rectsize + 2, centery + rectsize + 2);
2411
2412 SelectObject(hdc, hOldPen);
2413 DeleteObject(hNewPen);
2414
2415 if (height < 18 || width < 18)
2416 {
2417 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2418 LineTo(hdc, centerx + plussize, centery);
2419
2420 if (!(item->state & TVIS_EXPANDED))
2421 {
2422 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2423 LineTo(hdc, centerx, centery + plussize);
2424 }
2425 }
2426 else
2427 {
2428 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2429 centerx + plussize, centery + 2);
2430
2431 if (!(item->state & TVIS_EXPANDED))
2432 {
2433 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2434 centerx + 2, centery + plussize);
2435 SetPixel(hdc, centerx - 1, centery, clrBk);
2436 SetPixel(hdc, centerx + 1, centery, clrBk);
2437 }
2438 }
2439 }
2440 }
2441 }
2442 SelectObject(hdc, hbrOld);
2443 DeleteObject(hbr);
2444 }
2445
2446 static void
2447 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2448 {
2449 INT cditem;
2450 HFONT hOldFont;
2451 COLORREF oldTextColor, oldTextBkColor;
2452 int centery;
2453 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2454 NMTVCUSTOMDRAW nmcdhdr;
2455
2456 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2457
2458 /* - If item is drop target or it is selected and window is in focus -
2459 * use blue background (COLOR_HIGHLIGHT).
2460 * - If item is selected, window is not in focus, but it has style
2461 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2462 * - Otherwise - use background color
2463 */
2464 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2465 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2466 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2467 {
2468 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2469 {
2470 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2471 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2472 }
2473 else
2474 {
2475 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2476 if (infoPtr->clrText == -1)
2477 nmcdhdr.clrText = comctl32_color.clrWindowText;
2478 else
2479 nmcdhdr.clrText = infoPtr->clrText;
2480 }
2481 }
2482 else
2483 {
2484 nmcdhdr.clrTextBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2485 infoPtr->clrBk;
2486 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2487 nmcdhdr.clrText = comctl32_color.clrHighlight;
2488 else if (infoPtr->clrText == -1)
2489 nmcdhdr.clrText = comctl32_color.clrWindowText;
2490 else
2491 nmcdhdr.clrText = infoPtr->clrText;
2492 }
2493
2494 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2495
2496 /* The custom draw handler can query the text rectangle,
2497 * so get ready. */
2498 /* should already be known, set to 0 when changed */
2499 if (!wineItem->textWidth)
2500 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2501
2502 cditem = 0;
2503
2504 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2505 {
2506 cditem = TREEVIEW_SendCustomDrawItemNotify
2507 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2508 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2509
2510 if (cditem & CDRF_SKIPDEFAULT)
2511 {
2512 SelectObject(hdc, hOldFont);
2513 return;
2514 }
2515 }
2516
2517 if (cditem & CDRF_NEWFONT)
2518 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2519
2520 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2521
2522 /* Set colors. Custom draw handler can change these so we do this after it. */
2523 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2524 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2525
2526 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2527
2528 /*
2529 * Display the images associated with this item
2530 */
2531 {
2532 INT imageIndex;
2533
2534 /* State images are displayed to the left of the Normal image
2535 * image number is in state; zero should be `display no image'.
2536 */
2537 imageIndex = STATEIMAGEINDEX(wineItem->state);
2538
2539 if (infoPtr->himlState && imageIndex)
2540 {
2541 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2542 wineItem->stateOffset,
2543 centery - infoPtr->stateImageHeight / 2,
2544 ILD_NORMAL);
2545 }
2546
2547 /* Now, draw the normal image; can be either selected or
2548 * non-selected image.
2549 */
2550
2551 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2552 {
2553 /* The item is currently selected */
2554 imageIndex = wineItem->iSelectedImage;
2555 }
2556 else
2557 {
2558 /* The item is not selected */
2559 imageIndex = wineItem->iImage;
2560 }
2561
2562 if (infoPtr->himlNormal)
2563 {
2564 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2565
2566 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2567 wineItem->imageOffset,
2568 centery - infoPtr->normalImageHeight / 2,
2569 ILD_NORMAL | ovlIdx);
2570 }
2571 }
2572
2573
2574 /*
2575 * Display the text associated with this item
2576 */
2577
2578 /* Don't paint item's text if it's being edited */
2579 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2580 {
2581 if (wineItem->pszText)
2582 {
2583 RECT rcText;
2584
2585 rcText.top = wineItem->rect.top;
2586 rcText.bottom = wineItem->rect.bottom;
2587 rcText.left = wineItem->textOffset;
2588 rcText.right = rcText.left + wineItem->textWidth + 4;
2589
2590 TRACE("drawing text %s at (%s)\n",
2591 debugstr_w(wineItem->pszText), wine_dbgstr_rect(&rcText));
2592
2593 /* Draw it */
2594 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2595 ETO_CLIPPED | ETO_OPAQUE,
2596 &rcText,
2597 wineItem->pszText,
2598 lstrlenW(wineItem->pszText),
2599 NULL);
2600
2601 /* Draw the box around the selected item */
2602 if ((wineItem == infoPtr->selectedItem) && inFocus)
2603 {
2604 DrawFocusRect(hdc,&rcText);
2605 }
2606
2607 }
2608 }
2609
2610 /* Draw insertion mark if necessary */
2611
2612 if (infoPtr->insertMarkItem)
2613 TRACE("item:%d,mark:%p\n",
2614 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2615 infoPtr->insertMarkItem);
2616
2617 if (wineItem == infoPtr->insertMarkItem)
2618 {
2619 HPEN hNewPen, hOldPen;
2620 int offset;
2621 int left, right;
2622
2623 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2624 hOldPen = SelectObject(hdc, hNewPen);
2625
2626 if (infoPtr->insertBeforeorAfter)
2627 offset = wineItem->rect.bottom - 1;
2628 else
2629 offset = wineItem->rect.top + 1;
2630
2631 left = wineItem->textOffset - 2;
2632 right = wineItem->textOffset + wineItem->textWidth + 2;
2633
2634 MoveToEx(hdc, left, offset - 3, NULL);
2635 LineTo(hdc, left, offset + 4);
2636
2637 MoveToEx(hdc, left, offset, NULL);
2638 LineTo(hdc, right + 1, offset);
2639
2640 MoveToEx(hdc, right, offset + 3, NULL);
2641 LineTo(hdc, right, offset - 4);
2642
2643 SelectObject(hdc, hOldPen);
2644 DeleteObject(hNewPen);
2645 }
2646
2647 if (cditem & CDRF_NOTIFYPOSTPAINT)
2648 {
2649 cditem = TREEVIEW_SendCustomDrawItemNotify
2650 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2651 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2652 }
2653
2654 /* Restore the hdc state */
2655 SetTextColor(hdc, oldTextColor);
2656 SetBkColor(hdc, oldTextBkColor);
2657 SelectObject(hdc, hOldFont);
2658 }
2659
2660 /* Computes treeHeight and treeWidth and updates the scroll bars.
2661 */
2662 static void
2663 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2664 {
2665 TREEVIEW_ITEM *wineItem;
2666 HWND hwnd = infoPtr->hwnd;
2667 BOOL vert = FALSE;
2668 BOOL horz = FALSE;
2669 SCROLLINFO si;
2670 LONG scrollX = infoPtr->scrollX;
2671
2672 infoPtr->treeWidth = 0;
2673 infoPtr->treeHeight = 0;
2674
2675 /* We iterate through all visible items in order to get the tree height
2676 * and width */
2677 wineItem = infoPtr->root->firstChild;
2678
2679 while (wineItem != NULL)
2680 {
2681 if (ISVISIBLE(wineItem))
2682 {
2683 /* actually we draw text at textOffset + 2 */
2684 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2685 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2686
2687 /* This is scroll-adjusted, but we fix this below. */
2688 infoPtr->treeHeight = wineItem->rect.bottom;
2689 }
2690
2691 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2692 }
2693
2694 /* Fix the scroll adjusted treeHeight and treeWidth. */
2695 if (infoPtr->root->firstChild)
2696 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2697
2698 infoPtr->treeWidth += infoPtr->scrollX;
2699
2700 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2701
2702 /* Adding one scroll bar may take up enough space that it forces us
2703 * to add the other as well. */
2704 if (infoPtr->treeHeight > infoPtr->clientHeight)
2705 {
2706 vert = TRUE;
2707
2708 if (infoPtr->treeWidth
2709 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2710 horz = TRUE;
2711 }
2712 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2713 horz = TRUE;
2714
2715 if (!vert && horz && infoPtr->treeHeight
2716 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2717 vert = TRUE;
2718
2719 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2720
2721 si.cbSize = sizeof(SCROLLINFO);
2722 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2723 si.nMin = 0;
2724
2725 if (vert)
2726 {
2727 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2728 if ( si.nPage && NULL != infoPtr->firstVisible)
2729 {
2730 si.nPos = infoPtr->firstVisible->visibleOrder;
2731 si.nMax = infoPtr->maxVisibleOrder - 1;
2732
2733 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2734
2735 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2736 ShowScrollBar(hwnd, SB_VERT, TRUE);
2737 infoPtr->uInternalStatus |= TV_VSCROLL;
2738 }
2739 else
2740 {
2741 if (infoPtr->uInternalStatus & TV_VSCROLL)
2742 ShowScrollBar(hwnd, SB_VERT, FALSE);
2743 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2744 }
2745 }
2746 else
2747 {
2748 if (infoPtr->uInternalStatus & TV_VSCROLL)
2749 ShowScrollBar(hwnd, SB_VERT, FALSE);
2750 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2751 }
2752
2753 if (horz)
2754 {
2755 si.nPage = infoPtr->clientWidth;
2756 si.nPos = infoPtr->scrollX;
2757 si.nMax = infoPtr->treeWidth - 1;
2758
2759 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2760 {
2761 si.nPos = si.nMax - max( si.nPage-1, 0 );
2762 scrollX = si.nPos;
2763 }
2764
2765 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2766 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2767 infoPtr->uInternalStatus |= TV_HSCROLL;
2768
2769 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2770 TREEVIEW_HScroll(infoPtr,
2771 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2772 }
2773 else
2774 {
2775 if (infoPtr->uInternalStatus & TV_HSCROLL)
2776 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2777 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2778
2779 scrollX = 0;
2780 if (infoPtr->scrollX != 0)
2781 {
2782 TREEVIEW_HScroll(infoPtr,
2783 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2784 }
2785 }
2786
2787 if (!horz)
2788 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2789 }
2790
2791 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2792 static LRESULT
2793 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hDC)
2794 {
2795 HBRUSH hBrush;
2796 COLORREF clrBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2797 infoPtr->clrBk;
2798 RECT rect;
2799
2800 hBrush = CreateSolidBrush(clrBk);
2801 GetClientRect(infoPtr->hwnd, &rect);
2802 FillRect(hDC, &rect, hBrush);
2803 DeleteObject(hBrush);
2804
2805 return 1;
2806 }
2807
2808 static void
2809 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2810 {
2811 HWND hwnd = infoPtr->hwnd;
2812 RECT rect = *rc;
2813 TREEVIEW_ITEM *wineItem;
2814
2815 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2816 {
2817 TRACE("empty window\n");
2818 return;
2819 }
2820
2821 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2822 hdc, rect);
2823
2824 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2825 {
2826 ReleaseDC(hwnd, hdc);
2827 return;
2828 }
2829
2830 for (wineItem = infoPtr->root->firstChild;
2831 wineItem != NULL;
2832 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2833 {
2834 if (ISVISIBLE(wineItem))
2835 {
2836 /* Avoid unneeded calculations */
2837 if (wineItem->rect.top > rect.bottom)
2838 break;
2839 if (wineItem->rect.bottom < rect.top)
2840 continue;
2841
2842 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2843 }
2844 }
2845
2846 //
2847 // This is correct, but is causes and infinite loop of WM_PAINT messages, resulting
2848 // in continuous painting of the scroll bar in reactos. Comment out until the real
2849 // bug is found
2850 //
2851 //TREEVIEW_UpdateScrollBars(infoPtr);
2852
2853 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2854 infoPtr->cdmode =
2855 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2856 }
2857
2858 static void
2859 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2860 {
2861 if (item != NULL)
2862 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2863 else
2864 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2865 }
2866
2867 static LRESULT
2868 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2869 {
2870 HDC hdc;
2871 PAINTSTRUCT ps;
2872 RECT rc;
2873
2874 TRACE("\n");
2875
2876 if (wParam)
2877 {
2878 hdc = (HDC)wParam;
2879 GetClientRect(infoPtr->hwnd, &rc);
2880 TREEVIEW_EraseBackground(infoPtr, hdc);
2881 }
2882 else
2883 {
2884 hdc = BeginPaint(infoPtr->hwnd, &ps);
2885 rc = ps.rcPaint;
2886 }
2887
2888 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2889 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2890
2891 if (!wParam)
2892 EndPaint(infoPtr->hwnd, &ps);
2893
2894 return 0;
2895 }
2896
2897
2898 /* Sorting **************************************************************/
2899
2900 /***************************************************************************
2901 * Forward the DPA local callback to the treeview owner callback
2902 */
2903 static INT WINAPI
2904 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2905 const TVSORTCB *pCallBackSort)
2906 {
2907 /* Forward the call to the client-defined callback */
2908 return pCallBackSort->lpfnCompare(first->lParam,
2909 second->lParam,
2910 pCallBackSort->lParam);
2911 }
2912
2913 /***************************************************************************
2914 * Treeview native sort routine: sort on item text.
2915 */
2916 static INT WINAPI
2917 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2918 const TREEVIEW_INFO *infoPtr)
2919 {
2920 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2921 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2922
2923 if(first->pszText && second->pszText)
2924 return lstrcmpiW(first->pszText, second->pszText);
2925 else if(first->pszText)
2926 return -1;
2927 else if(second->pszText)
2928 return 1;
2929 else
2930 return 0;
2931 }
2932
2933 /* Returns the number of physical children belonging to item. */
2934 static INT
2935 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
2936 {
2937 INT cChildren = 0;
2938 HTREEITEM hti;
2939
2940 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2941 cChildren++;
2942
2943 return cChildren;
2944 }
2945
2946 /* Returns a DPA containing a pointer to each physical child of item in
2947 * sibling order. If item has no children, an empty DPA is returned. */
2948 static HDPA
2949 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
2950 {
2951 HTREEITEM child = item->firstChild;
2952
2953 HDPA list = DPA_Create(8);
2954 if (list == 0) return NULL;
2955
2956 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2957 {
2958 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2959 {
2960 DPA_Destroy(list);
2961 return NULL;
2962 }
2963 }
2964
2965 return list;
2966 }
2967
2968 /***************************************************************************
2969 * Setup the treeview structure with regards of the sort method
2970 * and sort the children of the TV item specified in lParam
2971 * fRecurse: currently unused. Should be zero.
2972 * parent: if pSort!=NULL, should equal pSort->hParent.
2973 * otherwise, item which child items are to be sorted.
2974 * pSort: sort method info. if NULL, sort on item text.
2975 * if non-NULL, sort on item's lParam content, and let the
2976 * application decide what that means. See also TVM_SORTCHILDRENCB.
2977 */
2978
2979 static LRESULT
2980 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
2981 LPTVSORTCB pSort)
2982 {
2983 INT cChildren;
2984 PFNDPACOMPARE pfnCompare;
2985 LPARAM lpCompare;
2986
2987 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2988 if (parent == TVI_ROOT || parent == NULL)
2989 parent = infoPtr->root;
2990
2991 /* Check for a valid handle to the parent item */
2992 if (!TREEVIEW_ValidItem(infoPtr, parent))
2993 {
2994 ERR("invalid item hParent=%p\n", parent);
2995 return FALSE;
2996 }
2997
2998 if (pSort)
2999 {
3000 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3001 lpCompare = (LPARAM)pSort;
3002 }
3003 else
3004 {
3005 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3006 lpCompare = (LPARAM)infoPtr;
3007 }
3008
3009 cChildren = TREEVIEW_CountChildren(parent);
3010
3011 /* Make sure there is something to sort */
3012 if (cChildren > 1)
3013 {
3014 /* TREEVIEW_ITEM rechaining */
3015 INT count = 0;
3016 HTREEITEM item = 0;
3017 HTREEITEM nextItem = 0;
3018 HTREEITEM prevItem = 0;
3019
3020 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3021
3022 if (sortList == NULL)
3023 return FALSE;
3024
3025 /* let DPA sort the list */
3026 DPA_Sort(sortList, pfnCompare, lpCompare);
3027
3028 /* The order of DPA entries has been changed, so fixup the
3029 * nextSibling and prevSibling pointers. */
3030
3031 item = DPA_GetPtr(sortList, count++);
3032 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3033 {
3034 /* link the two current item together */
3035 item->nextSibling = nextItem;
3036 nextItem->prevSibling = item;
3037
3038 if (prevItem == NULL)
3039 {
3040 /* this is the first item, update the parent */
3041 parent->firstChild = item;
3042 item->prevSibling = NULL;
3043 }
3044 else
3045 {
3046 /* fix the back chaining */
3047 item->prevSibling = prevItem;
3048 }
3049
3050 /* get ready for the next one */
3051 prevItem = item;
3052 item = nextItem;
3053 }
3054
3055 /* the last item is pointed to by item and never has a sibling */
3056 item->nextSibling = NULL;
3057 parent->lastChild = item;
3058
3059 DPA_Destroy(sortList);
3060
3061 TREEVIEW_VerifyTree(infoPtr);
3062
3063 if (parent->state & TVIS_EXPANDED)
3064 {
3065 int visOrder = infoPtr->firstVisible->visibleOrder;
3066
3067 if (parent == infoPtr->root)
3068 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3069 else
3070 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3071
3072 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3073 {
3074 TREEVIEW_ITEM *item;
3075
3076 for (item = infoPtr->root->firstChild; item != NULL;
3077 item = TREEVIEW_GetNextListItem(infoPtr, item))
3078 {
3079 if (item->visibleOrder == visOrder)
3080 break;
3081 }
3082
3083 if (!item) item = parent->firstChild;
3084 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3085 }
3086
3087 TREEVIEW_Invalidate(infoPtr, NULL);
3088 }
3089
3090 return TRUE;
3091 }
3092 return FALSE;
3093 }
3094
3095
3096 /***************************************************************************
3097 * Setup the treeview structure with regards of the sort method
3098 * and sort the children of the TV item specified in lParam
3099 */
3100 static LRESULT
3101 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3102 {
3103 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3104 }
3105
3106
3107 /***************************************************************************
3108 * Sort the children of the TV item specified in lParam.
3109 */
3110 static LRESULT
3111 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3112 {
3113 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3114 }
3115
3116
3117 /* Expansion/Collapse ***************************************************/
3118
3119 static BOOL
3120 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3121 UINT action)
3122 {
3123 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3124 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3125 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3126 0, wineItem);
3127 }
3128
3129 static VOID
3130 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3131 UINT action)
3132 {
3133 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3134 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3135 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3136 0, wineItem);
3137 }
3138
3139
3140 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3141 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3142 static BOOL
3143 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3144 BOOL bRemoveChildren, BOOL bUser)
3145 {
3146 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3147 BOOL bSetSelection, bSetFirstVisible;
3148 RECT scrollRect;
3149 LONG scrollDist = 0;
3150 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3151
3152 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3153
3154 if (!(wineItem->state & TVIS_EXPANDED))
3155 return FALSE;
3156
3157 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3158 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3159
3160 if (wineItem->firstChild == NULL)
3161 return FALSE;
3162
3163 wineItem->state &= ~TVIS_EXPANDED;
3164
3165 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3166 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3167
3168 bSetSelection = (infoPtr->selectedItem != NULL
3169 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3170
3171 bSetFirstVisible = (infoPtr->firstVisible != NULL
3172 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3173
3174 tmpItem = wineItem;
3175 while (tmpItem)
3176 {
3177 if (tmpItem->nextSibling)
3178 {
3179 nextItem = tmpItem->nextSibling;
3180 break;
3181 }
3182 tmpItem = tmpItem->parent;
3183 }
3184
3185 if (nextItem)
3186 scrollDist = nextItem->rect.top;
3187
3188 if (bRemoveChildren)
3189 {
3190 INT old_cChildren = wineItem->cChildren;
3191 TRACE("TVE_COLLAPSERESET\n");
3192 wineItem->state &= ~TVIS_EXPANDEDONCE;
3193 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3194 wineItem->cChildren = old_cChildren;
3195 }
3196
3197 if (wineItem->firstChild)
3198 {
3199 TREEVIEW_ITEM *item, *sibling;
3200
3201 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3202
3203 for (item = wineItem->firstChild; item != sibling;
3204 item = TREEVIEW_GetNextListItem(infoPtr, item))
3205 {
3206 item->visibleOrder = -1;
3207 }
3208 }
3209
3210 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3211
3212 if (nextItem)
3213 scrollDist = -(scrollDist - nextItem->rect.top);
3214
3215 if (bSetSelection)
3216 {
3217 /* Don't call DoSelectItem, it sends notifications. */
3218 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3219 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3220 wineItem->state |= TVIS_SELECTED;
3221 infoPtr->selectedItem = wineItem;
3222 }
3223
3224 TREEVIEW_UpdateScrollBars(infoPtr);
3225
3226 scrollRect.left = 0;
3227 scrollRect.right = infoPtr->clientWidth;
3228 scrollRect.bottom = infoPtr->clientHeight;
3229
3230 if (nextItem)
3231 {
3232 scrollRect.top = nextItem->rect.top;
3233
3234 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3235 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3236 TREEVIEW_Invalidate(infoPtr, wineItem);
3237 } else {
3238 scrollRect.top = wineItem->rect.top;
3239 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3240 }
3241
3242 TREEVIEW_SetFirstVisible(infoPtr,
3243 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3244 TRUE);
3245
3246 return TRUE;
3247 }
3248
3249 static BOOL
3250 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3251 BOOL bExpandPartial, BOOL bUser)
3252 {
3253 LONG scrollDist;
3254 LONG orgNextTop = 0;
3255 RECT scrollRect;
3256 TREEVIEW_ITEM *nextItem, *tmpItem;
3257
3258 TRACE("\n");
3259
3260 if (wineItem->state & TVIS_EXPANDED)
3261 return TRUE;
3262
3263 tmpItem = wineItem; nextItem = NULL;
3264 while (tmpItem)
3265 {
3266 if (tmpItem->nextSibling)
3267 {
3268 nextItem = tmpItem->nextSibling;
3269 break;
3270 }
3271 tmpItem = tmpItem->parent;
3272 }
3273
3274 if (nextItem)
3275 orgNextTop = nextItem->rect.top;
3276
3277 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3278
3279 if (bUser || ((wineItem->cChildren != 0) &&
3280 !(wineItem->state & TVIS_EXPANDEDONCE)))
3281 {
3282 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3283 {
3284 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3285 return FALSE;
3286 }
3287
3288 if (!wineItem->firstChild)
3289 return FALSE;
3290
3291 wineItem->state |= TVIS_EXPANDED;
3292 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3293 wineItem->state |= TVIS_EXPANDEDONCE;
3294 }
3295 else
3296 {
3297 if (!wineItem->firstChild)
3298 return FALSE;
3299
3300 /* this item has already been expanded */
3301 wineItem->state |= TVIS_EXPANDED;
3302 }
3303
3304 if (bExpandPartial)
3305 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3306
3307 if (ISVISIBLE(wineItem))
3308 {
3309 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3310 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3311 TREEVIEW_UpdateScrollBars(infoPtr);
3312
3313 scrollRect.left = 0;
3314 scrollRect.bottom = infoPtr->treeHeight;
3315 scrollRect.right = infoPtr->clientWidth;
3316 if (nextItem)
3317 {
3318 scrollDist = nextItem->rect.top - orgNextTop;
3319 scrollRect.top = orgNextTop;
3320
3321 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3322 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3323 TREEVIEW_Invalidate (infoPtr, wineItem);
3324 } else {
3325 scrollRect.top = wineItem->rect.top;
3326 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3327 }
3328
3329 /* Scroll up so that as many children as possible are visible.
3330 * This fails when expanding causes an HScroll bar to appear, but we
3331 * don't know that yet, so the last item is obscured. */
3332 if (wineItem->firstChild != NULL)
3333 {
3334 int nChildren = wineItem->lastChild->visibleOrder
3335 - wineItem->firstChild->visibleOrder + 1;
3336
3337 int visible_pos = wineItem->visibleOrder
3338 - infoPtr->firstVisible->visibleOrder;
3339
3340 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3341
3342 if (visible_pos > 0 && nChildren > rows_below)
3343 {
3344 int scroll = nChildren - rows_below;
3345
3346 if (scroll > visible_pos)
3347 scroll = visible_pos;
3348
3349 if (scroll > 0)
3350 {
3351 TREEVIEW_ITEM *newFirstVisible
3352 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3353 scroll);
3354
3355
3356 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3357 }
3358 }
3359 }
3360 }
3361
3362 return TRUE;
3363 }
3364
3365 static BOOL
3366 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3367 {
3368 TRACE("\n");
3369
3370 if (wineItem->state & TVIS_EXPANDED)
3371 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3372 else
3373 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3374 }
3375
3376 static VOID
3377 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3378 {
3379 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3380
3381 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3382 {
3383 if (TREEVIEW_HasChildren(infoPtr, item))
3384 TREEVIEW_ExpandAll(infoPtr, item);
3385 }
3386 }
3387
3388 /* Note:If the specified item is the child of a collapsed parent item,
3389 the parent's list of child items is (recursively) expanded to reveal the
3390 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3391 know if it also applies here.
3392 */
3393
3394 static LRESULT
3395 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3396 {
3397 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3398 return 0;
3399
3400 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3401 TREEVIEW_ItemName(wineItem), flag,
3402 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3403
3404 switch (flag & TVE_TOGGLE)
3405 {
3406 case TVE_COLLAPSE:
3407 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3408 FALSE);
3409
3410 case TVE_EXPAND:
3411 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3412 FALSE);
3413
3414 case TVE_TOGGLE:
3415 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3416
3417 default:
3418 return 0;
3419 }
3420
3421 #if 0
3422 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3423 #endif
3424 }
3425
3426 /* Hit-Testing **********************************************************/
3427
3428 static TREEVIEW_ITEM *
3429 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3430 {
3431 TREEVIEW_ITEM *wineItem;
3432 LONG row;
3433
3434 if (!infoPtr->firstVisible)
3435 return NULL;
3436
3437 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3438
3439 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3440 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3441 {
3442 if (row >= wineItem->visibleOrder
3443 && row < wineItem->visibleOrder + wineItem->iIntegral)
3444 break;
3445 }
3446
3447 return wineItem;
3448 }
3449
3450 static LRESULT
3451 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3452 {
3453 TREEVIEW_ITEM *wineItem;
3454 RECT rect;
3455 UINT status;
3456 LONG x, y;
3457
3458 lpht->hItem = 0;
3459 GetClientRect(infoPtr->hwnd, &rect);
3460 status = 0;
3461 x = lpht->pt.x;
3462 y = lpht->pt.y;
3463
3464 if (x < rect.left)
3465 {
3466 status |= TVHT_TOLEFT;
3467 }
3468 else if (x > rect.right)
3469 {
3470 status |= TVHT_TORIGHT;
3471 }
3472
3473 if (y < rect.top)
3474 {
3475 status |= TVHT_ABOVE;
3476 }
3477 else if (y > rect.bottom)
3478 {
3479 status |= TVHT_BELOW;
3480 }
3481
3482 if (status)
3483 {
3484 lpht->flags = status;
3485 return 0;
3486 }
3487
3488 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3489 if (!wineItem)
3490 {
3491 lpht->flags = TVHT_NOWHERE;
3492 return 0;
3493 }
3494
3495 if (x >= wineItem->textOffset + wineItem->textWidth)
3496 {
3497 lpht->flags = TVHT_ONITEMRIGHT;
3498 }
3499 else if (x >= wineItem->textOffset)
3500 {
3501 lpht->flags = TVHT_ONITEMLABEL;
3502 }
3503 else if (x >= wineItem->imageOffset)
3504 {
3505 lpht->flags = TVHT_ONITEMICON;
3506 }
3507 else if (x >= wineItem->stateOffset)
3508 {
3509 lpht->flags = TVHT_ONITEMSTATEICON;
3510 }
3511 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3512 {
3513 lpht->flags = TVHT_ONITEMBUTTON;
3514 }
3515 else
3516 {
3517 lpht->flags = TVHT_ONITEMINDENT;
3518 }
3519
3520 lpht->hItem = wineItem;
3521 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3522
3523 return (LRESULT)wineItem;
3524 }
3525
3526 /* Item Label Editing ***************************************************/
3527
3528 static LRESULT
3529 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3530 {
3531 return (LRESULT)infoPtr->hwndEdit;
3532 }
3533
3534 static LRESULT CALLBACK
3535 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3536 {
3537 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3538 BOOL bCancel = FALSE;
3539 LRESULT rc;
3540
3541 switch (uMsg)
3542 {
3543 case WM_PAINT:
3544 TRACE("WM_PAINT start\n");
3545 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3546 lParam);
3547 TRACE("WM_PAINT done\n");
3548 return rc;
3549
3550 case WM_KILLFOCUS:
3551 if (infoPtr->bIgnoreEditKillFocus)
3552 return TRUE;
3553 break;
3554
3555 case WM_DESTROY:
3556 {
3557 WNDPROC editProc = infoPtr->wpEditOrig;
3558 infoPtr->wpEditOrig = 0;
3559 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3560 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3561 }
3562
3563 case WM_GETDLGCODE:
3564 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3565
3566 case WM_KEYDOWN:
3567 if (wParam == (WPARAM)VK_ESCAPE)
3568 {
3569 bCancel = TRUE;
3570 break;
3571 }
3572 else if (wParam == (WPARAM)VK_RETURN)
3573 {
3574 break;
3575 }
3576
3577 /* fall through */
3578 default:
3579 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3580 }
3581
3582 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3583 /* eg. Using a messagebox */
3584
3585 infoPtr->bIgnoreEditKillFocus = TRUE;
3586 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3587 infoPtr->bIgnoreEditKillFocus = FALSE;
3588
3589 return 0;
3590 }
3591
3592
3593 /* should handle edit control messages here */
3594
3595 static LRESULT
3596 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3597 {
3598 TRACE("code=%x, id=%x, handle=%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3599
3600 switch (HIWORD(wParam))
3601 {
3602 case EN_UPDATE:
3603 {
3604 /*
3605 * Adjust the edit window size
3606 */
3607 WCHAR buffer[1024];
3608 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3609 HDC hdc = GetDC(infoPtr->hwndEdit);
3610 SIZE sz;
3611 HFONT hFont, hOldFont = 0;
3612
3613 TRACE("edit=%p\n", infoPtr->hwndEdit);
3614
3615 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3616
3617 infoPtr->bLabelChanged = TRUE;
3618
3619 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3620
3621 /* Select font to get the right dimension of the string */
3622 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3623
3624 if (hFont != 0)
3625 {
3626 hOldFont = SelectObject(hdc, hFont);
3627 }
3628
3629 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3630 {
3631 TEXTMETRICW textMetric;
3632
3633 /* Add Extra spacing for the next character */
3634 GetTextMetricsW(hdc, &textMetric);
3635 sz.cx += (textMetric.tmMaxCharWidth * 2);
3636
3637 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3638 sz.cx = min(sz.cx,
3639 infoPtr->clientWidth - editItem->textOffset + 2);
3640
3641 SetWindowPos(infoPtr->hwndEdit,
3642 HWND_TOP,
3643 0,
3644 0,
3645 sz.cx,
3646 editItem->rect.bottom - editItem->rect.top + 3,
3647 SWP_NOMOVE | SWP_DRAWFRAME);
3648 }
3649
3650 if (hFont != 0)
3651 {
3652 SelectObject(hdc, hOldFont);
3653 }
3654
3655 ReleaseDC(infoPtr->hwnd, hdc);
3656 break;
3657 }
3658 case EN_KILLFOCUS:
3659 /* apparently we should respect passed handle value */
3660 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3661
3662 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3663 break;
3664
3665 default:
3666 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3667 }
3668
3669 return 0;
3670 }
3671
3672 static HWND
3673 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3674 {
3675 HWND hwnd = infoPtr->hwnd;
3676 HWND hwndEdit;
3677 SIZE sz;
3678 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3679 HDC hdc;
3680 HFONT hOldFont=0;
3681 TEXTMETRICW textMetric;
3682 static const WCHAR EditW[] = {'E','d','i','t',0};
3683
3684 TRACE("%p %p\n", hwnd, hItem);
3685 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3686 return NULL;
3687
3688 if (infoPtr->hwndEdit)
3689 return infoPtr->hwndEdit;
3690
3691 infoPtr->bLabelChanged = FALSE;
3692
3693 /* make edit item visible */
3694 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3695
3696 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3697
3698 hdc = GetDC(hwnd);
3699 /* Select the font to get appropriate metric dimensions */
3700 if (infoPtr->hFont != 0)
3701 {
3702 hOldFont = SelectObject(hdc, infoPtr->hFont);
3703 }
3704
3705 /* Get string length in pixels */
3706 if (hItem->pszText)
3707 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3708 &sz);
3709 else
3710 GetTextExtentPoint32A(hdc, "", 0, &sz);
3711
3712 /* Add Extra spacing for the next character */
3713 GetTextMetricsW(hdc, &textMetric);
3714 sz.cx += (textMetric.tmMaxCharWidth * 2);
3715
3716 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3717 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3718
3719 if (infoPtr->hFont != 0)
3720 {
3721 SelectObject(hdc, hOldFont);
3722 }
3723
3724 ReleaseDC(hwnd, hdc);
3725
3726 infoPtr->editItem = hItem;
3727
3728 hwndEdit = CreateWindowExW(WS_EX_LEFT,