1 /*
2 * Listview control
3 *
4 * Copyright 1998, 1999 Eric Kohl
5 * Copyright 1999 Luc Tourangeau
6 * Copyright 2000 Jason Mawdsley
7 * Copyright 2001 CodeWeavers Inc.
8 * Copyright 2002 Dimitrie O. Paun
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 *
24 * NOTES
25 *
26 * This code was audited for completeness against the documented features
27 * of Comctl32.dll version 6.0 on May. 20, 2005, by James Hawkins.
28 *
29 * Unless otherwise noted, we believe this code to be complete, as per
30 * the specification mentioned above.
31 * If you discover missing features, or bugs, please note them below.
32 *
33 * TODO:
34 *
35 * Default Message Processing
36 * -- EN_KILLFOCUS should be handled in WM_COMMAND
37 * -- WM_CREATE: create the icon and small icon image lists at this point only if
38 * the LVS_SHAREIMAGELISTS style is not specified.
39 * -- WM_ERASEBKGND: forward this message to the parent window if the bkgnd
40 * color is CLR_NONE.
41 * -- WM_WINDOWPOSCHANGED: arrange the list items if the current view is icon
42 * or small icon and the LVS_AUTOARRANGE style is specified.
43 * -- WM_TIMER
44 * -- WM_WININICHANGE
45 *
46 * Features
47 * -- Hot item handling, mouse hovering
48 * -- Workareas support
49 * -- Tilemode support
50 * -- Groups support
51 *
52 * Bugs
53 * -- Expand large item in ICON mode when the cursor is flying over the icon or text.
54 * -- Support CustomDraw options for _WIN32_IE >= 0x560 (see NMLVCUSTOMDRAW docs).
55 * -- LVA_SNAPTOGRID not implemented
56 * -- LISTVIEW_ApproximateViewRect partially implemented
57 * -- LISTVIEW_[GS]etColumnOrderArray stubs
58 * -- LISTVIEW_SetColumnWidth ignores header images & bitmap
59 * -- LISTVIEW_SetIconSpacing is incomplete
60 * -- LISTVIEW_SortItems is broken
61 * -- LISTVIEW_StyleChanged doesn't handle some changes too well
62 *
63 * Speedups
64 * -- LISTVIEW_GetNextItem needs to be rewritten. It is currently
65 * linear in the number of items in the list, and this is
66 * unacceptable for large lists.
67 * -- in sorted mode, LISTVIEW_InsertItemT sorts the array,
68 * instead of inserting in the right spot
69 * -- we should keep an ordered array of coordinates in iconic mode
70 * this would allow to frame items (iterator_frameditems),
71 * and find nearest item (LVFI_NEARESTXY) a lot more efficiently
72 *
73 * Flags
74 * -- LVIF_COLUMNS
75 * -- LVIF_GROUPID
76 * -- LVIF_NORECOMPUTE
77 *
78 * States
79 * -- LVIS_ACTIVATING (not currently supported by comctl32.dll version 6.0)
80 * -- LVIS_CUT
81 * -- LVIS_DROPHILITED
82 * -- LVIS_OVERLAYMASK
83 *
84 * Styles
85 * -- LVS_NOLABELWRAP
86 * -- LVS_NOSCROLL (see Q137520)
87 * -- LVS_SORTASCENDING, LVS_SORTDESCENDING
88 * -- LVS_ALIGNTOP
89 * -- LVS_TYPESTYLEMASK
90 *
91 * Extended Styles
92 * -- LVS_EX_BORDERSELECT
93 * -- LVS_EX_FLATSB
94 * -- LVS_EX_HEADERDRAGDROP
95 * -- LVS_EX_INFOTIP
96 * -- LVS_EX_LABELTIP
97 * -- LVS_EX_MULTIWORKAREAS
98 * -- LVS_EX_ONECLICKACTIVATE
99 * -- LVS_EX_REGIONAL
100 * -- LVS_EX_SIMPLESELECT
101 * -- LVS_EX_TRACKSELECT
102 * -- LVS_EX_TWOCLICKACTIVATE
103 * -- LVS_EX_UNDERLINECOLD
104 * -- LVS_EX_UNDERLINEHOT
105 *
106 * Notifications:
107 * -- LVN_BEGINSCROLL, LVN_ENDSCROLL
108 * -- LVN_GETINFOTIP
109 * -- LVN_HOTTRACK
110 * -- LVN_MARQUEEBEGIN
111 * -- LVN_ODFINDITEM
112 * -- LVN_SETDISPINFO
113 * -- NM_HOVER
114 * -- LVN_BEGINRDRAG
115 *
116 * Messages:
117 * -- LVM_CANCELEDITLABEL
118 * -- LVM_ENABLEGROUPVIEW
119 * -- LVM_GETBKIMAGE, LVM_SETBKIMAGE
120 * -- LVM_GETGROUPINFO, LVM_SETGROUPINFO
121 * -- LVM_GETGROUPMETRICS, LVM_SETGROUPMETRICS
122 * -- LVM_GETINSERTMARK, LVM_SETINSERTMARK
123 * -- LVM_GETINSERTMARKCOLOR, LVM_SETINSERTMARKCOLOR
124 * -- LVM_GETINSERTMARKRECT
125 * -- LVM_GETNUMBEROFWORKAREAS
126 * -- LVM_GETOUTLINECOLOR, LVM_SETOUTLINECOLOR
127 * -- LVM_GETSELECTEDCOLUMN, LVM_SETSELECTEDCOLUMN
128 * -- LVM_GETISEARCHSTRINGW, LVM_GETISEARCHSTRINGA
129 * -- LVM_GETTILEINFO, LVM_SETTILEINFO
130 * -- LVM_GETTILEVIEWINFO, LVM_SETTILEVIEWINFO
131 * -- LVM_GETUNICODEFORMAT, LVM_SETUNICODEFORMAT
132 * -- LVM_GETVIEW, LVM_SETVIEW
133 * -- LVM_GETWORKAREAS, LVM_SETWORKAREAS
134 * -- LVM_HASGROUP, LVM_INSERTGROUP, LVM_REMOVEGROUP, LVM_REMOVEALLGROUPS
135 * -- LVM_INSERTGROUPSORTED
136 * -- LVM_INSERTMARKHITTEST
137 * -- LVM_ISGROUPVIEWENABLED
138 * -- LVM_MAPIDTOINDEX, LVM_MAPINDEXTOID
139 * -- LVM_MOVEGROUP
140 * -- LVM_MOVEITEMTOGROUP
141 * -- LVM_SETINFOTIP
142 * -- LVM_SETTILEWIDTH
143 * -- LVM_SORTGROUPS
144 * -- LVM_SORTITEMSEX
145 *
146 * Macros:
147 * -- ListView_GetCheckSate, ListView_SetCheckState
148 * -- ListView_GetHoverTime, ListView_SetHoverTime
149 * -- ListView_GetISearchString
150 * -- ListView_GetNumberOfWorkAreas
151 * -- ListView_GetOrigin
152 * -- ListView_GetTextBkColor
153 * -- ListView_GetUnicodeFormat, ListView_SetUnicodeFormat
154 * -- ListView_GetWorkAreas, ListView_SetWorkAreas
155 * -- ListView_SortItemsEx
156 *
157 * Functions:
158 * -- LVGroupComparE
159 *
160 * Known differences in message stream from native control (not known if
161 * these differences cause problems):
162 * LVM_INSERTITEM issues LVM_SETITEMSTATE and LVM_SETITEM in certain cases.
163 * LVM_SETITEM does not always issue LVN_ITEMCHANGING/LVN_ITEMCHANGED.
164 * WM_CREATE does not issue WM_QUERYUISTATE and associated registry
165 * processing for "USEDOUBLECLICKTIME".
166 */
167
168 #include "config.h"
169 #include "wine/port.h"
170
171 #include <assert.h>
172 #include <ctype.h>
173 #include <string.h>
174 #include <stdlib.h>
175 #include <stdarg.h>
176 #include <stdio.h>
177
178 #include "windef.h"
179 #include "winbase.h"
180 #include "winnt.h"
181 #include "wingdi.h"
182 #include "winuser.h"
183 #include "winnls.h"
184 #include "commctrl.h"
185 #include "comctl32.h"
186 #include "uxtheme.h"
187
188 #include "wine/debug.h"
189 #include "wine/unicode.h"
190
191 WINE_DEFAULT_DEBUG_CHANNEL(listview);
192
193 /* make sure you set this to 0 for production use! */
194 #define DEBUG_RANGES 1
195
196 typedef struct tagCOLUMN_INFO
197 {
198 RECT rcHeader; /* tracks the header's rectangle */
199 int fmt; /* same as LVCOLUMN.fmt */
200 } COLUMN_INFO;
201
202 typedef struct tagITEMHDR
203 {
204 LPWSTR pszText;
205 INT iImage;
206 } ITEMHDR, *LPITEMHDR;
207
208 typedef struct tagSUBITEM_INFO
209 {
210 ITEMHDR hdr;
211 INT iSubItem;
212 } SUBITEM_INFO;
213
214 typedef struct tagITEM_INFO
215 {
216 ITEMHDR hdr;
217 UINT state;
218 LPARAM lParam;
219 INT iIndent;
220 } ITEM_INFO;
221
222 typedef struct tagRANGE
223 {
224 INT lower;
225 INT upper;
226 } RANGE;
227
228 typedef struct tagRANGES
229 {
230 HDPA hdpa;
231 } *RANGES;
232
233 typedef struct tagITERATOR
234 {
235 INT nItem;
236 INT nSpecial;
237 RANGE range;
238 RANGES ranges;
239 INT index;
240 } ITERATOR;
241
242 typedef struct tagDELAYED_ITEM_EDIT
243 {
244 BOOL fEnabled;
245 INT iItem;
246 } DELAYED_ITEM_EDIT;
247
248 typedef struct tagLISTVIEW_INFO
249 {
250 HWND hwndSelf;
251 HBRUSH hBkBrush;
252 COLORREF clrBk;
253 COLORREF clrText;
254 COLORREF clrTextBk;
255 HIMAGELIST himlNormal;
256 HIMAGELIST himlSmall;
257 HIMAGELIST himlState;
258 BOOL bLButtonDown;
259 BOOL bRButtonDown;
260 POINT ptClickPos; /* point where the user clicked */
261 BOOL bNoItemMetrics; /* flags if item metrics are not yet computed */
262 INT nItemHeight;
263 INT nItemWidth;
264 RANGES selectionRanges;
265 INT nSelectionMark;
266 INT nHotItem;
267 SHORT notifyFormat;
268 HWND hwndNotify;
269 RECT rcList; /* This rectangle is really the window
270 * client rectangle possibly reduced by the
271 * horizontal scroll bar and/or header - see
272 * LISTVIEW_UpdateSize. This rectangle offset
273 * by the LISTVIEW_GetOrigin value is in
274 * client coordinates */
275 SIZE iconSize;
276 SIZE iconSpacing;
277 SIZE iconStateSize;
278 UINT uCallbackMask;
279 HWND hwndHeader;
280 HCURSOR hHotCursor;
281 HFONT hDefaultFont;
282 HFONT hFont;
283 INT ntmHeight; /* Some cached metrics of the font used */
284 INT ntmMaxCharWidth; /* by the listview to draw items */
285 INT nEllipsisWidth;
286 BOOL bRedraw; /* Turns on/off repaints & invalidations */
287 BOOL bAutoarrange; /* Autoarrange flag when NOT in LVS_AUTOARRANGE */
288 BOOL bFocus;
289 BOOL bDoChangeNotify; /* send change notification messages? */
290 INT nFocusedItem;
291 RECT rcFocus;
292 DWORD dwStyle; /* the cached window GWL_STYLE */
293 DWORD dwLvExStyle; /* extended listview style */
294 INT nItemCount; /* the number of items in the list */
295 HDPA hdpaItems; /* array ITEM_INFO pointers */
296 HDPA hdpaPosX; /* maintains the (X, Y) coordinates of the */
297 HDPA hdpaPosY; /* items in LVS_ICON, and LVS_SMALLICON modes */
298 HDPA hdpaColumns; /* array of COLUMN_INFO pointers */
299 POINT currIconPos; /* this is the position next icon will be placed */
300 PFNLVCOMPARE pfnCompare;
301 LPARAM lParamSort;
302 HWND hwndEdit;
303 WNDPROC EditWndProc;
304 INT nEditLabelItem;
305 DWORD dwHoverTime;
306 HWND hwndToolTip;
307
308 DWORD cditemmode; /* Keep the custom draw flags for an item/row */
309
310 DWORD lastKeyPressTimestamp;
311 WPARAM charCode;
312 INT nSearchParamLength;
313 WCHAR szSearchParam[ MAX_PATH ];
314 BOOL bIsDrawing;
315 INT nMeasureItemHeight;
316 INT xTrackLine; /* The x coefficient of the track line or -1 if none */
317 DELAYED_ITEM_EDIT itemEdit; /* Pointer to this structure will be the timer ID */
318 } LISTVIEW_INFO;
319
320 /*
321 * constants
322 */
323 /* How many we debug buffer to allocate */
324 #define DEBUG_BUFFERS 20
325 /* The size of a single debug bbuffer */
326 #define DEBUG_BUFFER_SIZE 256
327
328 /* Internal interface to LISTVIEW_HScroll and LISTVIEW_VScroll */
329 #define SB_INTERNAL -1
330
331 /* maximum size of a label */
332 #define DISP_TEXT_SIZE 512
333
334 /* padding for items in list and small icon display modes */
335 #define WIDTH_PADDING 12
336
337 /* padding for items in list, report and small icon display modes */
338 #define HEIGHT_PADDING 1
339
340 /* offset of items in report display mode */
341 #define REPORT_MARGINX 2
342
343 /* padding for icon in large icon display mode
344 * ICON_TOP_PADDING_NOTHITABLE - space between top of box and area
345 * that HITTEST will see.
346 * ICON_TOP_PADDING_HITABLE - spacing between above and icon.
347 * ICON_TOP_PADDING - sum of the two above.
348 * ICON_BOTTOM_PADDING - between bottom of icon and top of text
349 * LABEL_HOR_PADDING - between text and sides of box
350 * LABEL_VERT_PADDING - between bottom of text and end of box
351 *
352 * ICON_LR_PADDING - additional width above icon size.
353 * ICON_LR_HALF - half of the above value
354 */
355 #define ICON_TOP_PADDING_NOTHITABLE 2
356 #define ICON_TOP_PADDING_HITABLE 2
357 #define ICON_TOP_PADDING (ICON_TOP_PADDING_NOTHITABLE + ICON_TOP_PADDING_HITABLE)
358 #define ICON_BOTTOM_PADDING 4
359 #define LABEL_HOR_PADDING 5
360 #define LABEL_VERT_PADDING 7
361 #define ICON_LR_PADDING 16
362 #define ICON_LR_HALF (ICON_LR_PADDING/2)
363
364 /* default label width for items in list and small icon display modes */
365 #define DEFAULT_LABEL_WIDTH 40
366
367 /* default column width for items in list display mode */
368 #define DEFAULT_COLUMN_WIDTH 128
369
370 /* Size of "line" scroll for V & H scrolls */
371 #define LISTVIEW_SCROLL_ICON_LINE_SIZE 37
372
373 /* Padding between image and label */
374 #define IMAGE_PADDING 2
375
376 /* Padding behind the label */
377 #define TRAILING_LABEL_PADDING 12
378 #define TRAILING_HEADER_PADDING 11
379
380 /* Border for the icon caption */
381 #define CAPTION_BORDER 2
382
383 /* Standard DrawText flags */
384 #define LV_ML_DT_FLAGS (DT_TOP | DT_NOPREFIX | DT_EDITCONTROL | DT_CENTER | DT_WORDBREAK | DT_WORD_ELLIPSIS | DT_END_ELLIPSIS)
385 #define LV_FL_DT_FLAGS (DT_TOP | DT_NOPREFIX | DT_EDITCONTROL | DT_CENTER | DT_WORDBREAK | DT_NOCLIP)
386 #define LV_SL_DT_FLAGS (DT_VCENTER | DT_NOPREFIX | DT_EDITCONTROL | DT_SINGLELINE | DT_WORD_ELLIPSIS | DT_END_ELLIPSIS)
387
388 /* Image index from state */
389 #define STATEIMAGEINDEX(x) (((x) & LVIS_STATEIMAGEMASK) >> 12)
390
391 /* The time in milliseconds to reset the search in the list */
392 #define KEY_DELAY 450
393
394 /* Dump the LISTVIEW_INFO structure to the debug channel */
395 #define LISTVIEW_DUMP(iP) do { \
396 TRACE("hwndSelf=%p, clrBk=0x%06x, clrText=0x%06x, clrTextBk=0x%06x, ItemHeight=%d, ItemWidth=%d, Style=0x%08x\n", \
397 iP->hwndSelf, iP->clrBk, iP->clrText, iP->clrTextBk, \
398 iP->nItemHeight, iP->nItemWidth, iP->dwStyle); \
399 TRACE("hwndSelf=%p, himlNor=%p, himlSml=%p, himlState=%p, Focused=%d, Hot=%d, exStyle=0x%08x, Focus=%d\n", \
400 iP->hwndSelf, iP->himlNormal, iP->himlSmall, iP->himlState, \
401 iP->nFocusedItem, iP->nHotItem, iP->dwLvExStyle, iP->bFocus ); \
402 TRACE("hwndSelf=%p, ntmH=%d, icSz.cx=%d, icSz.cy=%d, icSp.cx=%d, icSp.cy=%d, notifyFmt=%d\n", \
403 iP->hwndSelf, iP->ntmHeight, iP->iconSize.cx, iP->iconSize.cy, \
404 iP->iconSpacing.cx, iP->iconSpacing.cy, iP->notifyFormat); \
405 TRACE("hwndSelf=%p, rcList=%s\n", iP->hwndSelf, wine_dbgstr_rect(&iP->rcList)); \
406 } while(0)
407
408 static const WCHAR themeClass[] = {'L','i','s','t','V','i','e','w',0};
409
410 /*
411 * forward declarations
412 */
413 static BOOL LISTVIEW_GetItemT(const LISTVIEW_INFO *, LPLVITEMW, BOOL);
414 static void LISTVIEW_GetItemBox(const LISTVIEW_INFO *, INT, LPRECT);
415 static void LISTVIEW_GetItemOrigin(const LISTVIEW_INFO *, INT, LPPOINT);
416 static BOOL LISTVIEW_GetItemPosition(const LISTVIEW_INFO *, INT, LPPOINT);
417 static BOOL LISTVIEW_GetItemRect(const LISTVIEW_INFO *, INT, LPRECT);
418 static INT LISTVIEW_GetLabelWidth(const LISTVIEW_INFO *, INT);
419 static void LISTVIEW_GetOrigin(const LISTVIEW_INFO *, LPPOINT);
420 static BOOL LISTVIEW_GetViewRect(const LISTVIEW_INFO *, LPRECT);
421 static void LISTVIEW_SetGroupSelection(LISTVIEW_INFO *, INT);
422 static BOOL LISTVIEW_SetItemT(LISTVIEW_INFO *, LVITEMW *, BOOL);
423 static void LISTVIEW_UpdateScroll(const LISTVIEW_INFO *);
424 static void LISTVIEW_SetSelection(LISTVIEW_INFO *, INT);
425 static void LISTVIEW_UpdateSize(LISTVIEW_INFO *);
426 static HWND LISTVIEW_EditLabelT(LISTVIEW_INFO *, INT, BOOL);
427 static LRESULT LISTVIEW_Command(const LISTVIEW_INFO *, WPARAM, LPARAM);
428 static BOOL LISTVIEW_SortItems(LISTVIEW_INFO *, PFNLVCOMPARE, LPARAM);
429 static INT LISTVIEW_GetStringWidthT(const LISTVIEW_INFO *, LPCWSTR, BOOL);
430 static BOOL LISTVIEW_KeySelection(LISTVIEW_INFO *, INT);
431 static UINT LISTVIEW_GetItemState(const LISTVIEW_INFO *, INT, UINT);
432 static BOOL LISTVIEW_SetItemState(LISTVIEW_INFO *, INT, const LVITEMW *);
433 static LRESULT LISTVIEW_VScroll(LISTVIEW_INFO *, INT, INT, HWND);
434 static LRESULT LISTVIEW_HScroll(LISTVIEW_INFO *, INT, INT, HWND);
435 static INT LISTVIEW_GetTopIndex(const LISTVIEW_INFO *);
436 static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *, INT, BOOL);
437 static HWND CreateEditLabelT(LISTVIEW_INFO *, LPCWSTR, DWORD, INT, INT, INT, INT, BOOL);
438 static HIMAGELIST LISTVIEW_SetImageList(LISTVIEW_INFO *, INT, HIMAGELIST);
439 static INT LISTVIEW_HitTest(const LISTVIEW_INFO *, LPLVHITTESTINFO, BOOL, BOOL);
440
441 /******** Text handling functions *************************************/
442
443 /* A text pointer is either NULL, LPSTR_TEXTCALLBACK, or points to a
444 * text string. The string may be ANSI or Unicode, in which case
445 * the boolean isW tells us the type of the string.
446 *
447 * The name of the function tell what type of strings it expects:
448 * W: Unicode, T: ANSI/Unicode - function of isW
449 */
450
451 static inline BOOL is_textW(LPCWSTR text)
452 {
453 return text != NULL && text != LPSTR_TEXTCALLBACKW;
454 }
455
456 static inline BOOL is_textT(LPCWSTR text, BOOL isW)
457 {
458 /* we can ignore isW since LPSTR_TEXTCALLBACKW == LPSTR_TEXTCALLBACKA */
459 return is_textW(text);
460 }
461
462 static inline int textlenT(LPCWSTR text, BOOL isW)
463 {
464 return !is_textT(text, isW) ? 0 :
465 isW ? lstrlenW(text) : lstrlenA((LPCSTR)text);
466 }
467
468 static inline void textcpynT(LPWSTR dest, BOOL isDestW, LPCWSTR src, BOOL isSrcW, INT max)
469 {
470 if (isDestW)
471 if (isSrcW) lstrcpynW(dest, src, max);
472 else MultiByteToWideChar(CP_ACP, 0, (LPCSTR)src, -1, dest, max);
473 else
474 if (isSrcW) WideCharToMultiByte(CP_ACP, 0, src, -1, (LPSTR)dest, max, NULL, NULL);
475 else lstrcpynA((LPSTR)dest, (LPCSTR)src, max);
476 }
477
478 static inline LPWSTR textdupTtoW(LPCWSTR text, BOOL isW)
479 {
480 LPWSTR wstr = (LPWSTR)text;
481
482 if (!isW && is_textT(text, isW))
483 {
484 INT len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)text, -1, NULL, 0);
485 wstr = Alloc(len * sizeof(WCHAR));
486 if (wstr) MultiByteToWideChar(CP_ACP, 0, (LPCSTR)text, -1, wstr, len);
487 }
488 TRACE(" wstr=%s\n", text == LPSTR_TEXTCALLBACKW ? "(callback)" : debugstr_w(wstr));
489 return wstr;
490 }
491
492 static inline void textfreeT(LPWSTR wstr, BOOL isW)
493 {
494 if (!isW && is_textT(wstr, isW)) Free (wstr);
495 }
496
497 /*
498 * dest is a pointer to a Unicode string
499 * src is a pointer to a string (Unicode if isW, ANSI if !isW)
500 */
501 static BOOL textsetptrT(LPWSTR *dest, LPCWSTR src, BOOL isW)
502 {
503 BOOL bResult = TRUE;
504
505 if (src == LPSTR_TEXTCALLBACKW)
506 {
507 if (is_textW(*dest)) Free(*dest);
508 *dest = LPSTR_TEXTCALLBACKW;
509 }
510 else
511 {
512 LPWSTR pszText = textdupTtoW(src, isW);
513 if (*dest == LPSTR_TEXTCALLBACKW) *dest = NULL;
514 bResult = Str_SetPtrW(dest, pszText);
515 textfreeT(pszText, isW);
516 }
517 return bResult;
518 }
519
520 /*
521 * compares a Unicode to a Unicode/ANSI text string
522 */
523 static inline int textcmpWT(LPCWSTR aw, LPCWSTR bt, BOOL isW)
524 {
525 if (!aw) return bt ? -1 : 0;
526 if (!bt) return aw ? 1 : 0;
527 if (aw == LPSTR_TEXTCALLBACKW)
528 return bt == LPSTR_TEXTCALLBACKW ? 0 : -1;
529 if (bt != LPSTR_TEXTCALLBACKW)
530 {
531 LPWSTR bw = textdupTtoW(bt, isW);
532 int r = bw ? lstrcmpW(aw, bw) : 1;
533 textfreeT(bw, isW);
534 return r;
535 }
536
537 return 1;
538 }
539
540 static inline int lstrncmpiW(LPCWSTR s1, LPCWSTR s2, int n)
541 {
542 int res;
543
544 n = min(min(n, strlenW(s1)), strlenW(s2));
545 res = CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE, s1, n, s2, n);
546 return res ? res - sizeof(WCHAR) : res;
547 }
548
549 /******** Debugging functions *****************************************/
550
551 static inline LPCSTR debugtext_t(LPCWSTR text, BOOL isW)
552 {
553 if (text == LPSTR_TEXTCALLBACKW) return "(callback)";
554 return isW ? debugstr_w(text) : debugstr_a((LPCSTR)text);
555 }
556
557 static inline LPCSTR debugtext_tn(LPCWSTR text, BOOL isW, INT n)
558 {
559 if (text == LPSTR_TEXTCALLBACKW) return "(callback)";
560 n = min(textlenT(text, isW), n);
561 return isW ? debugstr_wn(text, n) : debugstr_an((LPCSTR)text, n);
562 }
563
564 static char* debug_getbuf(void)
565 {
566 static int index = 0;
567 static char buffers[DEBUG_BUFFERS][DEBUG_BUFFER_SIZE];
568 return buffers[index++ % DEBUG_BUFFERS];
569 }
570
571 static inline const char* debugrange(const RANGE *lprng)
572 {
573 if (!lprng) return "(null)";
574 return wine_dbg_sprintf("[%d, %d]", lprng->lower, lprng->upper);
575 }
576
577 static const char* debugscrollinfo(const SCROLLINFO *pScrollInfo)
578 {
579 char* buf = debug_getbuf(), *text = buf;
580 int len, size = DEBUG_BUFFER_SIZE;
581
582 if (pScrollInfo == NULL) return "(null)";
583 len = snprintf(buf, size, "{cbSize=%d, ", pScrollInfo->cbSize);
584 if (len == -1) goto end; buf += len; size -= len;
585 if (pScrollInfo->fMask & SIF_RANGE)
586 len = snprintf(buf, size, "nMin=%d, nMax=%d, ", pScrollInfo->nMin, pScrollInfo->nMax);
587 else len = 0;
588 if (len == -1) goto end; buf += len; size -= len;
589 if (pScrollInfo->fMask & SIF_PAGE)
590 len = snprintf(buf, size, "nPage=%u, ", pScrollInfo->nPage);
591 else len = 0;
592 if (len == -1) goto end; buf += len; size -= len;
593 if (pScrollInfo->fMask & SIF_POS)
594 len = snprintf(buf, size, "nPos=%d, ", pScrollInfo->nPos);
595 else len = 0;
596 if (len == -1) goto end; buf += len; size -= len;
597 if (pScrollInfo->fMask & SIF_TRACKPOS)
598 len = snprintf(buf, size, "nTrackPos=%d, ", pScrollInfo->nTrackPos);
599 else len = 0;
600 if (len == -1) goto end; buf += len; size -= len;
601 goto undo;
602 end:
603 buf = text + strlen(text);
604 undo:
605 if (buf - text > 2) { buf[-2] = '}'; buf[-1] = 0; }
606 return text;
607 }
608
609 static const char* debugnmlistview(const NMLISTVIEW *plvnm)
610 {
611 if (!plvnm) return "(null)";
612 return wine_dbg_sprintf("iItem=%d, iSubItem=%d, uNewState=0x%x,"
613 " uOldState=0x%x, uChanged=0x%x, ptAction=%s, lParam=%ld",
614 plvnm->iItem, plvnm->iSubItem, plvnm->uNewState, plvnm->uOldState,
615 plvnm->uChanged, wine_dbgstr_point(&plvnm->ptAction), plvnm->lParam);
616 }
617
618 static const char* debuglvitem_t(const LVITEMW *lpLVItem, BOOL isW)
619 {
620 char* buf = debug_getbuf(), *text = buf;
621 int len, size = DEBUG_BUFFER_SIZE;
622
623 if (lpLVItem == NULL) return "(null)";
624 len = snprintf(buf, size, "{iItem=%d, iSubItem=%d, ", lpLVItem->iItem, lpLVItem->iSubItem);
625 if (len == -1) goto end; buf += len; size -= len;
626 if (lpLVItem->mask & LVIF_STATE)
627 len = snprintf(buf, size, "state=%x, stateMask=%x, ", lpLVItem->state, lpLVItem->stateMask);
628 else len = 0;
629 if (len == -1) goto end; buf += len; size -= len;
630 if (lpLVItem->mask & LVIF_TEXT)
631 len = snprintf(buf, size, "pszText=%s, cchTextMax=%d, ", debugtext_tn(lpLVItem->pszText, isW, 80), lpLVItem->cchTextMax);
632 else len = 0;
633 if (len == -1) goto end; buf += len; size -= len;
634 if (lpLVItem->mask & LVIF_IMAGE)
635 len = snprintf(buf, size, "iImage=%d, ", lpLVItem->iImage);
636 else len = 0;
637 if (len == -1) goto end; buf += len; size -= len;
638 if (lpLVItem->mask & LVIF_PARAM)
639 len = snprintf(buf, size, "lParam=%lx, ", lpLVItem->lParam);
640 else len = 0;
641 if (len == -1) goto end; buf += len; size -= len;
642 if (lpLVItem->mask & LVIF_INDENT)
643 len = snprintf(buf, size, "iIndent=%d, ", lpLVItem->iIndent);
644 else len = 0;
645 if (len == -1) goto end; buf += len; size -= len;
646 goto undo;
647 end:
648 buf = text + strlen(text);
649 undo:
650 if (buf - text > 2) { buf[-2] = '}'; buf[-1] = 0; }
651 return text;
652 }
653
654 static const char* debuglvcolumn_t(const LVCOLUMNW *lpColumn, BOOL isW)
655 {
656 char* buf = debug_getbuf(), *text = buf;
657 int len, size = DEBUG_BUFFER_SIZE;
658
659 if (lpColumn == NULL) return "(null)";
660 len = snprintf(buf, size, "{");
661 if (len == -1) goto end; buf += len; size -= len;
662 if (lpColumn->mask & LVCF_SUBITEM)
663 len = snprintf(buf, size, "iSubItem=%d, ", lpColumn->iSubItem);
664 else len = 0;
665 if (len == -1) goto end; buf += len; size -= len;
666 if (lpColumn->mask & LVCF_FMT)
667 len = snprintf(buf, size, "fmt=%x, ", lpColumn->fmt);
668 else len = 0;
669 if (len == -1) goto end; buf += len; size -= len;
670 if (lpColumn->mask & LVCF_WIDTH)
671 len = snprintf(buf, size, "cx=%d, ", lpColumn->cx);
672 else len = 0;
673 if (len == -1) goto end; buf += len; size -= len;
674 if (lpColumn->mask & LVCF_TEXT)
675 len = snprintf(buf, size, "pszText=%s, cchTextMax=%d, ", debugtext_tn(lpColumn->pszText, isW, 80), lpColumn->cchTextMax);
676 else len = 0;
677 if (len == -1) goto end; buf += len; size -= len;
678 if (lpColumn->mask & LVCF_IMAGE)
679 len = snprintf(buf, size, "iImage=%d, ", lpColumn->iImage);
680 else len = 0;
681 if (len == -1) goto end; buf += len; size -= len;
682 if (lpColumn->mask & LVCF_ORDER)
683 len = snprintf(buf, size, "iOrder=%d, ", lpColumn->iOrder);
684 else len = 0;
685 if (len == -1) goto end; buf += len; size -= len;
686 goto undo;
687 end:
688 buf = text + strlen(text);
689 undo:
690 if (buf - text > 2) { buf[-2] = '}'; buf[-1] = 0; }
691 return text;
692 }
693
694 static const char* debuglvhittestinfo(const LVHITTESTINFO *lpht)
695 {
696 if (!lpht) return "(null)";
697
698 return wine_dbg_sprintf("{pt=%s, flags=0x%x, iItem=%d, iSubItem=%d}",
699 wine_dbgstr_point(&lpht->pt), lpht->flags, lpht->iItem, lpht->iSubItem);
700 }
701
702 /* Return the corresponding text for a given scroll value */
703 static inline LPCSTR debugscrollcode(int nScrollCode)
704 {
705 switch(nScrollCode)
706 {
707 case SB_LINELEFT: return "SB_LINELEFT";
708 case SB_LINERIGHT: return "SB_LINERIGHT";
709 case SB_PAGELEFT: return "SB_PAGELEFT";
710 case SB_PAGERIGHT: return "SB_PAGERIGHT";
711 case SB_THUMBPOSITION: return "SB_THUMBPOSITION";
712 case SB_THUMBTRACK: return "SB_THUMBTRACK";
713 case SB_ENDSCROLL: return "SB_ENDSCROLL";
714 case SB_INTERNAL: return "SB_INTERNAL";
715 default: return "unknown";
716 }
717 }
718
719
720 /******** Notification functions i************************************/
721
722 static LRESULT notify_forward_header(const LISTVIEW_INFO *infoPtr, const NMHEADERW *lpnmh)
723 {
724 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
725 (WPARAM)lpnmh->hdr.idFrom, (LPARAM)lpnmh);
726 }
727
728 static LRESULT notify_hdr(const LISTVIEW_INFO *infoPtr, INT code, LPNMHDR pnmh)
729 {
730 LRESULT result;
731
732 TRACE("(code=%d)\n", code);
733
734 pnmh->hwndFrom = infoPtr->hwndSelf;
735 pnmh->idFrom = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
736 pnmh->code = code;
737 result = SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, pnmh->idFrom, (LPARAM)pnmh);
738
739 TRACE(" <= %ld\n", result);
740
741 return result;
742 }
743
744 static inline BOOL notify(const LISTVIEW_INFO *infoPtr, INT code)
745 {
746 NMHDR nmh;
747 HWND hwnd = infoPtr->hwndSelf;
748 notify_hdr(infoPtr, code, &nmh);
749 return IsWindow(hwnd);
750 }
751
752 static inline void notify_itemactivate(const LISTVIEW_INFO *infoPtr, const LVHITTESTINFO *htInfo)
753 {
754 NMITEMACTIVATE nmia;
755 LVITEMW item;
756
757 if (htInfo) {
758 nmia.uNewState = 0;
759 nmia.uOldState = 0;
760 nmia.uChanged = 0;
761 nmia.uKeyFlags = 0;
762
763 item.mask = LVIF_PARAM|LVIF_STATE;
764 item.iItem = htInfo->iItem;
765 item.iSubItem = 0;
766 if (LISTVIEW_GetItemT(infoPtr, &item, TRUE)) {
767 nmia.lParam = item.lParam;
768 nmia.uOldState = item.state;
769 nmia.uNewState = item.state | LVIS_ACTIVATING;
770 nmia.uChanged = LVIF_STATE;
771 }
772
773 nmia.iItem = htInfo->iItem;
774 nmia.iSubItem = htInfo->iSubItem;
775 nmia.ptAction = htInfo->pt;
776
777 if (GetKeyState(VK_SHIFT) & 0x8000) nmia.uKeyFlags |= LVKF_SHIFT;
778 if (GetKeyState(VK_CONTROL) & 0x8000) nmia.uKeyFlags |= LVKF_CONTROL;
779 if (GetKeyState(VK_MENU) & 0x8000) nmia.uKeyFlags |= LVKF_ALT;
780 }
781 notify_hdr(infoPtr, LVN_ITEMACTIVATE, (LPNMHDR)&nmia);
782 }
783
784 static inline LRESULT notify_listview(const LISTVIEW_INFO *infoPtr, INT code, LPNMLISTVIEW plvnm)
785 {
786 TRACE("(code=%d, plvnm=%s)\n", code, debugnmlistview(plvnm));
787 return notify_hdr(infoPtr, code, (LPNMHDR)plvnm);
788 }
789
790 static BOOL notify_click(const LISTVIEW_INFO *infoPtr, INT code, const LVHITTESTINFO *lvht)
791 {
792 NMLISTVIEW nmlv;
793 LVITEMW item;
794 HWND hwnd = infoPtr->hwndSelf;
795
796 TRACE("code=%d, lvht=%s\n", code, debuglvhittestinfo(lvht));
797 ZeroMemory(&nmlv, sizeof(nmlv));
798 nmlv.iItem = lvht->iItem;
799 nmlv.iSubItem = lvht->iSubItem;
800 nmlv.ptAction = lvht->pt;
801 item.mask = LVIF_PARAM;
802 item.iItem = lvht->iItem;
803 item.iSubItem = 0;
804 if (LISTVIEW_GetItemT(infoPtr, &item, TRUE)) nmlv.lParam = item.lParam;
805 notify_listview(infoPtr, code, &nmlv);
806 return IsWindow(hwnd);
807 }
808
809 static BOOL notify_deleteitem(const LISTVIEW_INFO *infoPtr, INT nItem)
810 {
811 NMLISTVIEW nmlv;
812 LVITEMW item;
813 HWND hwnd = infoPtr->hwndSelf;
814
815 ZeroMemory(&nmlv, sizeof (NMLISTVIEW));
816 nmlv.iItem = nItem;
817 item.mask = LVIF_PARAM;
818 item.iItem = nItem;
819 item.iSubItem = 0;
820 if (LISTVIEW_GetItemT(infoPtr, &item, TRUE)) nmlv.lParam = item.lParam;
821 notify_listview(infoPtr, LVN_DELETEITEM, &nmlv);
822 return IsWindow(hwnd);
823 }
824
825 static int get_ansi_notification(INT unicodeNotificationCode)
826 {
827 switch (unicodeNotificationCode)
828 {
829 case LVN_BEGINLABELEDITW: return LVN_BEGINLABELEDITA;
830 case LVN_ENDLABELEDITW: return LVN_ENDLABELEDITA;
831 case LVN_GETDISPINFOW: return LVN_GETDISPINFOA;
832 case LVN_SETDISPINFOW: return LVN_SETDISPINFOA;
833 case LVN_ODFINDITEMW: return LVN_ODFINDITEMA;
834 case LVN_GETINFOTIPW: return LVN_GETINFOTIPA;
835 }
836 ERR("unknown notification %x\n", unicodeNotificationCode);
837 assert(FALSE);
838 return 0;
839 }
840
841 /*
842 Send notification. depends on dispinfoW having same
843 structure as dispinfoA.
844 infoPtr : listview struct
845 notificationCode : *Unicode* notification code
846 pdi : dispinfo structure (can be unicode or ansi)
847 isW : TRUE if dispinfo is Unicode
848 */
849 static BOOL notify_dispinfoT(const LISTVIEW_INFO *infoPtr, INT notificationCode, LPNMLVDISPINFOW pdi, BOOL isW)
850 {
851 BOOL bResult = FALSE;
852 BOOL convertToAnsi = FALSE, convertToUnicode = FALSE;
853 INT cchTempBufMax = 0, savCchTextMax = 0, realNotifCode;
854 LPWSTR pszTempBuf = NULL, savPszText = NULL;
855
856 if ((pdi->item.mask & LVIF_TEXT) && is_textT(pdi->item.pszText, isW))
857 {
858 convertToAnsi = (isW && infoPtr->notifyFormat == NFR_ANSI);
859 convertToUnicode = (!isW && infoPtr->notifyFormat == NFR_UNICODE);
860 }
861
862 if (convertToAnsi || convertToUnicode)
863 {
864 if (notificationCode != LVN_GETDISPINFOW)
865 {
866 cchTempBufMax = convertToUnicode ?
867 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pdi->item.pszText, -1, NULL, 0):
868 WideCharToMultiByte(CP_ACP, 0, pdi->item.pszText, -1, NULL, 0, NULL, NULL);
869 }
870 else
871 {
872 cchTempBufMax = pdi->item.cchTextMax;
873 *pdi->item.pszText = 0; /* make sure we don't process garbage */
874 }
875
876 pszTempBuf = Alloc( (convertToUnicode ? sizeof(WCHAR) : sizeof(CHAR)) * cchTempBufMax);
877 if (!pszTempBuf) return FALSE;
878
879 if (convertToUnicode)
880 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pdi->item.pszText, -1,
881 pszTempBuf, cchTempBufMax);
882 else
883 WideCharToMultiByte(CP_ACP, 0, pdi->item.pszText, -1, (LPSTR) pszTempBuf,
884 cchTempBufMax, NULL, NULL);
885
886 savCchTextMax = pdi->item.cchTextMax;
887 savPszText = pdi->item.pszText;
888 pdi->item.pszText = pszTempBuf;
889 pdi->item.cchTextMax = cchTempBufMax;
890 }
891
892 if (infoPtr->notifyFormat == NFR_ANSI)
893 realNotifCode = get_ansi_notification(notificationCode);
894 else
895 realNotifCode = notificationCode;
896 TRACE(" pdi->item=%s\n", debuglvitem_t(&pdi->item, infoPtr->notifyFormat != NFR_ANSI));
897 bResult = notify_hdr(infoPtr, realNotifCode, &pdi->hdr);
898
899 if (convertToUnicode || convertToAnsi)
900 {
901 if (convertToUnicode) /* note : pointer can be changed by app ! */
902 WideCharToMultiByte(CP_ACP, 0, pdi->item.pszText, -1, (LPSTR) savPszText,
903 savCchTextMax, NULL, NULL);
904 else
905 MultiByteToWideChar(CP_ACP, 0, (LPSTR) pdi->item.pszText, -1,
906 savPszText, savCchTextMax);
907 pdi->item.pszText = savPszText; /* restores our buffer */
908 pdi->item.cchTextMax = savCchTextMax;
909 Free (pszTempBuf);
910 }
911 return bResult;
912 }
913
914 static void customdraw_fill(NMLVCUSTOMDRAW *lpnmlvcd, const LISTVIEW_INFO *infoPtr, HDC hdc,
915 const RECT *rcBounds, const LVITEMW *lplvItem)
916 {
917 ZeroMemory(lpnmlvcd, sizeof(NMLVCUSTOMDRAW));
918 lpnmlvcd->nmcd.hdc = hdc;
919 lpnmlvcd->nmcd.rc = *rcBounds;
920 lpnmlvcd->clrTextBk = infoPtr->clrTextBk;
921 lpnmlvcd->clrText = infoPtr->clrText;
922 if (!lplvItem) return;
923 lpnmlvcd->nmcd.dwItemSpec = lplvItem->iItem + 1;
924 lpnmlvcd->iSubItem = lplvItem->iSubItem;
925 if (lplvItem->state & LVIS_SELECTED) lpnmlvcd->nmcd.uItemState |= CDIS_SELECTED;
926 if (lplvItem->state & LVIS_FOCUSED) lpnmlvcd->nmcd.uItemState |= CDIS_FOCUS;
927 if (lplvItem->iItem == infoPtr->nHotItem) lpnmlvcd->nmcd.uItemState |= CDIS_HOT;
928 lpnmlvcd->nmcd.lItemlParam = lplvItem->lParam;
929 }
930
931 static inline DWORD notify_customdraw (const LISTVIEW_INFO *infoPtr, DWORD dwDrawStage, NMLVCUSTOMDRAW *lpnmlvcd)
932 {
933 BOOL isForItem = (lpnmlvcd->nmcd.dwItemSpec != 0);
934 DWORD result;
935
936 lpnmlvcd->nmcd.dwDrawStage = dwDrawStage;
937 if (isForItem) lpnmlvcd->nmcd.dwDrawStage |= CDDS_ITEM;
938 if (lpnmlvcd->iSubItem) lpnmlvcd->nmcd.dwDrawStage |= CDDS_SUBITEM;
939 if (isForItem) lpnmlvcd->nmcd.dwItemSpec--;
940 result = notify_hdr(infoPtr, NM_CUSTOMDRAW, &lpnmlvcd->nmcd.hdr);
941 if (isForItem) lpnmlvcd->nmcd.dwItemSpec++;
942 return result;
943 }
944
945 static void prepaint_setup (const LISTVIEW_INFO *infoPtr, HDC hdc, NMLVCUSTOMDRAW *lpnmlvcd, BOOL SubItem)
946 {
947 if (lpnmlvcd->clrTextBk == CLR_DEFAULT)
948 lpnmlvcd->clrTextBk = comctl32_color.clrWindow;
949 if (lpnmlvcd->clrText == CLR_DEFAULT)
950 lpnmlvcd->clrText = comctl32_color.clrWindowText;
951
952 /* apparently, for selected items, we have to override the returned values */
953 if (!SubItem)
954 {
955 if (lpnmlvcd->nmcd.uItemState & CDIS_SELECTED)
956 {
957 if (infoPtr->bFocus)
958 {
959 lpnmlvcd->clrTextBk = comctl32_color.clrHighlight;
960 lpnmlvcd->clrText = comctl32_color.clrHighlightText;
961 }
962 else if (infoPtr->dwStyle & LVS_SHOWSELALWAYS)
963 {
964 lpnmlvcd->clrTextBk = comctl32_color.clr3dFace;
965 lpnmlvcd->clrText = comctl32_color.clrBtnText;
966 }
967 }
968 }
969
970 /* Set the text attributes */
971 if (lpnmlvcd->clrTextBk != CLR_NONE)
972 {
973 SetBkMode(hdc, OPAQUE);
974 SetBkColor(hdc,lpnmlvcd->clrTextBk);
975 }
976 else
977 SetBkMode(hdc, TRANSPARENT);
978 SetTextColor(hdc, lpnmlvcd->clrText);
979 }
980
981 static inline DWORD notify_postpaint (const LISTVIEW_INFO *infoPtr, NMLVCUSTOMDRAW *lpnmlvcd)
982 {
983 return notify_customdraw(infoPtr, CDDS_POSTPAINT, lpnmlvcd);
984 }
985
986 /******** Item iterator functions **********************************/
987
988 static RANGES ranges_create(int count);
989 static void ranges_destroy(RANGES ranges);
990 static BOOL ranges_add(RANGES ranges, RANGE range);
991 static BOOL ranges_del(RANGES ranges, RANGE range);
992 static void ranges_dump(RANGES ranges);
993
994 static inline BOOL ranges_additem(RANGES ranges, INT nItem)
995 {
996 RANGE range = { nItem, nItem + 1 };
997
998 return ranges_add(ranges, range);
999 }
1000
1001 static inline BOOL ranges_delitem(RANGES ranges, INT nItem)
1002 {
1003 RANGE range = { nItem, nItem + 1 };
1004
1005 return ranges_del(ranges, range);
1006 }
1007
1008 /***
1009 * ITERATOR DOCUMENTATION
1010 *
1011 * The iterator functions allow for easy, and convenient iteration
1012 * over items of interest in the list. Typically, you create a
1013 * iterator, use it, and destroy it, as such:
1014 * ITERATOR i;
1015 *
1016 * iterator_xxxitems(&i, ...);
1017 * while (iterator_{prev,next}(&i)
1018 * {
1019 * //code which uses i.nItem
1020 * }
1021 * iterator_destroy(&i);
1022 *
1023 * where xxx is either: framed, or visible.
1024 * Note that it is important that the code destroys the iterator
1025 * after it's done with it, as the creation of the iterator may
1026 * allocate memory, which thus needs to be freed.
1027 *
1028 * You can iterate both forwards, and backwards through the list,
1029 * by using iterator_next or iterator_prev respectively.
1030 *
1031 * Lower numbered items are draw on top of higher number items in
1032 * LVS_ICON, and LVS_SMALLICON (which are the only modes where
1033 * items may overlap). So, to test items, you should use
1034 * iterator_next
1035 * which lists the items top to bottom (in Z-order).
1036 * For drawing items, you should use
1037 * iterator_prev
1038 * which lists the items bottom to top (in Z-order).
1039 * If you keep iterating over the items after the end-of-items
1040 * marker (-1) is returned, the iterator will start from the
1041 * beginning. Typically, you don't need to test for -1,
1042 * because iterator_{next,prev} will return TRUE if more items
1043 * are to be iterated over, or FALSE otherwise.
1044 *
1045 * Note: the iterator is defined to be bidirectional. That is,
1046 * any number of prev followed by any number of next, or
1047 * five versa, should leave the iterator at the same item:
1048 * prev * n, next * n = next * n, prev * n
1049 *
1050 * The iterator has a notion of an out-of-order, special item,
1051 * which sits at the start of the list. This is used in
1052 * LVS_ICON, and LVS_SMALLICON mode to handle the focused item,
1053 * which needs to be first, as it may overlap other items.
1054 *
1055 * The code is a bit messy because we have:
1056 * - a special item to deal with
1057 * - simple range, or composite range
1058 * - empty range.
1059 * If you find bugs, or want to add features, please make sure you
1060 * always check/modify *both* iterator_prev, and iterator_next.
1061 */
1062
1063 /****
1064 * This function iterates through the items in increasing order,
1065 * but prefixed by the special item, then -1. That is:
1066 * special, 1, 2, 3, ..., n, -1.
1067 * Each item is listed only once.
1068 */
1069 static inline BOOL iterator_next(ITERATOR* i)
1070 {
1071 if (i->nItem == -1)
1072 {
1073 i->nItem = i->nSpecial;
1074 if (i->nItem != -1) return TRUE;
1075 }
1076 if (i->nItem == i->nSpecial)
1077 {
1078 if (i->ranges) i->index = 0;
1079 goto pickarange;
1080 }
1081
1082 i->nItem++;
1083 testitem:
1084 if (i->nItem == i->nSpecial) i->nItem++;
1085 if (i->nItem < i->range.upper) return TRUE;
1086
1087 pickarange:
1088 if (i->ranges)
1089 {
1090 if (i->index < DPA_GetPtrCount(i->ranges->hdpa))
1091 i->range = *(RANGE*)DPA_GetPtr(i->ranges->hdpa, i->index++);
1092 else goto end;
1093 }
1094 else if (i->nItem >= i->range.upper) goto end;
1095
1096 i->nItem = i->range.lower;
1097 if (i->nItem >= 0) goto testitem;
1098 end:
1099 i->nItem = -1;
1100 return FALSE;
1101 }
1102
1103 /****
1104 * This function iterates through the items in decreasing order,
1105 * followed by the special item, then -1. That is:
1106 * n, n-1, ..., 3, 2, 1, special, -1.
1107 * Each item is listed only once.
1108 */
1109 static inline BOOL iterator_prev(ITERATOR* i)
1110 {
1111 BOOL start = FALSE;
1112
1113 if (i->nItem == -1)
1114 {
1115 start = TRUE;
1116 if (i->ranges) i->index = DPA_GetPtrCount(i->ranges->hdpa);
1117 goto pickarange;
1118 }
1119 if (i->nItem == i->nSpecial)
1120 {
1121 i->nItem = -1;
1122 return FALSE;
1123 }
1124
1125 testitem:
1126 i->nItem--;
1127 if (i->nItem == i->nSpecial) i->nItem--;
1128 if (i->nItem >= i->range.lower) return TRUE;
1129
1130 pickarange:
1131 if (i->ranges)
1132 {
1133 if (i->index > 0)
1134 i->range = *(RANGE*)DPA_GetPtr(i->ranges->hdpa, --i->index);
1135 else goto end;
1136 }
1137 else if (!start && i->nItem < i->range.lower) goto end;
1138
1139 i->nItem = i->range.upper;
1140 if (i->nItem > 0) goto testitem;
1141 end:
1142 return (i->nItem = i->nSpecial) != -1;
1143 }
1144
1145 static RANGE iterator_range(const ITERATOR *i)
1146 {
1147 RANGE range;
1148
1149 if (!i->ranges) return i->range;
1150
1151 if (DPA_GetPtrCount(i->ranges->hdpa) > 0)
1152 {
1153 range.lower = (*(RANGE*)DPA_GetPtr(i->ranges->hdpa, 0)).lower;
1154 range.upper = (*(RANGE*)DPA_GetPtr(i->ranges->hdpa, DPA_GetPtrCount(i->ranges->hdpa) - 1)).upper;
1155 }
1156 else range.lower = range.upper = 0;
1157
1158 return range;
1159 }
1160
1161 /***
1162 * Releases resources associated with this ierator.
1163 */
1164 static inline void iterator_destroy(const ITERATOR *i)
1165 {
1166 ranges_destroy(i->ranges);
1167 }
1168
1169 /***
1170 * Create an empty iterator.
1171 */
1172 static inline BOOL iterator_empty(ITERATOR* i)
1173 {
1174 ZeroMemory(i, sizeof(*i));
1175 i->nItem = i->nSpecial = i->range.lower = i->range.upper = -1;
1176 return TRUE;
1177 }
1178
1179 /***
1180 * Create an iterator over a range.
1181 */
1182 static inline BOOL iterator_rangeitems(ITERATOR* i, RANGE range)
1183 {
1184 iterator_empty(i);
1185 i->range = range;
1186 return TRUE;
1187 }
1188
1189 /***
1190 * Create an iterator over a bunch of ranges.
1191 * Please note that the iterator will take ownership of the ranges,
1192 * and will free them upon destruction.
1193 */
1194 static inline BOOL iterator_rangesitems(ITERATOR* i, RANGES ranges)
1195 {
1196 iterator_empty(i);
1197 i->ranges = ranges;
1198 return TRUE;
1199 }
1200
1201 /***
1202 * Creates an iterator over the items which intersect lprc.
1203 */
1204 static BOOL iterator_frameditems(ITERATOR* i, const LISTVIEW_INFO* infoPtr, const RECT *lprc)
1205 {
1206 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1207 RECT frame = *lprc, rcItem, rcTemp;
1208 POINT Origin;
1209
1210 /* in case we fail, we want to return an empty iterator */
1211 if (!iterator_empty(i)) return FALSE;
1212
1213 LISTVIEW_GetOrigin(infoPtr, &Origin);
1214
1215 TRACE("(lprc=%s)\n", wine_dbgstr_rect(lprc));
1216 OffsetRect(&frame, -Origin.x, -Origin.y);
1217
1218 if (uView == LVS_ICON || uView == LVS_SMALLICON)
1219 {
1220 INT nItem;
1221
1222 if (uView == LVS_ICON && infoPtr->nFocusedItem != -1)
1223 {
1224 LISTVIEW_GetItemBox(infoPtr, infoPtr->nFocusedItem, &rcItem);
1225 if (IntersectRect(&rcTemp, &rcItem, lprc))
1226 i->nSpecial = infoPtr->nFocusedItem;
1227 }
1228 if (!(iterator_rangesitems(i, ranges_create(50)))) return FALSE;
1229 /* to do better here, we need to have PosX, and PosY sorted */
1230 TRACE("building icon ranges:\n");
1231 for (nItem = 0; nItem < infoPtr->nItemCount; nItem++)
1232 {
1233 rcItem.left = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosX, nItem);
1234 rcItem.top = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosY, nItem);
1235 rcItem.right = rcItem.left + infoPtr->nItemWidth;
1236 rcItem.bottom = rcItem.top + infoPtr->nItemHeight;
1237 if (IntersectRect(&rcTemp, &rcItem, &frame))
1238 ranges_additem(i->ranges, nItem);
1239 }
1240 return TRUE;
1241 }
1242 else if (uView == LVS_REPORT)
1243 {
1244 RANGE range;
1245
1246 if (frame.left >= infoPtr->nItemWidth) return TRUE;
1247 if (frame.top >= infoPtr->nItemHeight * infoPtr->nItemCount) return TRUE;
1248
1249 range.lower = max(frame.top / infoPtr->nItemHeight, 0);
1250 range.upper = min((frame.bottom - 1) / infoPtr->nItemHeight, infoPtr->nItemCount - 1) + 1;
1251 if (range.upper <= range.lower) return TRUE;
1252 if (!iterator_rangeitems(i, range)) return FALSE;
1253 TRACE(" report=%s\n", debugrange(&i->range));
1254 }
1255 else
1256 {
1257 INT nPerCol = max((infoPtr->rcList.bottom - infoPtr->rcList.top) / infoPtr->nItemHeight, 1);
1258 INT nFirstRow = max(frame.top / infoPtr->nItemHeight, 0);
1259 INT nLastRow = min((frame.bottom - 1) / infoPtr->nItemHeight, nPerCol - 1);
1260 INT nFirstCol = max(frame.left / infoPtr->nItemWidth, 0);
1261 INT nLastCol = min((frame.right - 1) / infoPtr->nItemWidth, (infoPtr->nItemCount + nPerCol - 1) / nPerCol);
1262 INT lower = nFirstCol * nPerCol + nFirstRow;
1263 RANGE item_range;
1264 INT nCol;
1265
1266 TRACE("nPerCol=%d, nFirstRow=%d, nLastRow=%d, nFirstCol=%d, nLastCol=%d, lower=%d\n",
1267 nPerCol, nFirstRow, nLastRow, nFirstCol, nLastCol, lower);
1268
1269 if (nLastCol < nFirstCol || nLastRow < nFirstRow) return TRUE;
1270
1271 if (!(iterator_rangesitems(i, ranges_create(nLastCol - nFirstCol + 1)))) return FALSE;
1272 TRACE("building list ranges:\n");
1273 for (nCol = nFirstCol; nCol <= nLastCol; nCol++)
1274 {
1275 item_range.lower = nCol * nPerCol + nFirstRow;
1276 if(item_range.lower >= infoPtr->nItemCount) break;
1277 item_range.upper = min(nCol * nPerCol + nLastRow + 1, infoPtr->nItemCount);
1278 TRACE(" list=%s\n", debugrange(&item_range));
1279 ranges_add(i->ranges, item_range);
1280 }
1281 }
1282
1283 return TRUE;
1284 }
1285
1286 /***
1287 * Creates an iterator over the items which intersect the visible region of hdc.
1288 */
1289 static BOOL iterator_visibleitems(ITERATOR *i, const LISTVIEW_INFO *infoPtr, HDC hdc)
1290 {
1291 POINT Origin, Position;
1292 RECT rcItem, rcClip;
1293 INT rgntype;
1294
1295 rgntype = GetClipBox(hdc, &rcClip);
1296 if (rgntype == NULLREGION) return iterator_empty(i);
1297 if (!iterator_frameditems(i, infoPtr, &rcClip)) return FALSE;
1298 if (rgntype == SIMPLEREGION) return TRUE;
1299
1300 /* first deal with the special item */
1301 if (i->nSpecial != -1)
1302 {
1303 LISTVIEW_GetItemBox(infoPtr, i->nSpecial, &rcItem);
1304 if (!RectVisible(hdc, &rcItem)) i->nSpecial = -1;
1305 }
1306
1307 /* if we can't deal with the region, we'll just go with the simple range */
1308 LISTVIEW_GetOrigin(infoPtr, &Origin);
1309 TRACE("building visible range:\n");
1310 if (!i->ranges && i->range.lower < i->range.upper)
1311 {
1312 if (!(i->ranges = ranges_create(50))) return TRUE;
1313 if (!ranges_add(i->ranges, i->range))
1314 {
1315 ranges_destroy(i->ranges);
1316 i->ranges = 0;
1317 return TRUE;
1318 }
1319 }
1320
1321 /* now delete the invisible items from the list */
1322 while(iterator_next(i))
1323 {
1324 LISTVIEW_GetItemOrigin(infoPtr, i->nItem, &Position);
1325 rcItem.left = Position.x + Origin.x;
1326 rcItem.top = Position.y + Origin.y;
1327 rcItem.right = rcItem.left + infoPtr->nItemWidth;
1328 rcItem.bottom = rcItem.top + infoPtr->nItemHeight;
1329 if (!RectVisible(hdc, &rcItem))
1330 ranges_delitem(i->ranges, i->nItem);
1331 }
1332 /* the iterator should restart on the next iterator_next */
1333 TRACE("done\n");
1334
1335 return TRUE;
1336 }
1337
1338 /******** Misc helper functions ************************************/
1339
1340 static inline LRESULT CallWindowProcT(WNDPROC proc, HWND hwnd, UINT uMsg,
1341 WPARAM wParam, LPARAM lParam, BOOL isW)
1342 {
1343 if (isW) return CallWindowProcW(proc, hwnd, uMsg, wParam, lParam);
1344 else return CallWindowProcA(proc, hwnd, uMsg, wParam, lParam);
1345 }
1346
1347 static inline BOOL is_autoarrange(const LISTVIEW_INFO *infoPtr)
1348 {
1349 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1350
1351 return ((infoPtr->dwStyle & LVS_AUTOARRANGE) || infoPtr->bAutoarrange) &&
1352 (uView == LVS_ICON || uView == LVS_SMALLICON);
1353 }
1354
1355 static void toggle_checkbox_state(LISTVIEW_INFO *infoPtr, INT nItem)
1356 {
1357 DWORD state = STATEIMAGEINDEX(LISTVIEW_GetItemState(infoPtr, nItem, LVIS_STATEIMAGEMASK));
1358 if(state == 1 || state == 2)
1359 {
1360 LVITEMW lvitem;
1361 state ^= 3;
1362 lvitem.state = INDEXTOSTATEIMAGEMASK(state);
1363 lvitem.stateMask = LVIS_STATEIMAGEMASK;
1364 LISTVIEW_SetItemState(infoPtr, nItem, &lvitem);
1365 }
1366 }
1367
1368 /******** Internal API functions ************************************/
1369
1370 static inline COLUMN_INFO * LISTVIEW_GetColumnInfo(const LISTVIEW_INFO *infoPtr, INT nSubItem)
1371 {
1372 static COLUMN_INFO mainItem;
1373
1374 if (nSubItem == 0 && DPA_GetPtrCount(infoPtr->hdpaColumns) == 0) return &mainItem;
1375 assert (nSubItem >= 0 && nSubItem < DPA_GetPtrCount(infoPtr->hdpaColumns));
1376 return (COLUMN_INFO *)DPA_GetPtr(infoPtr->hdpaColumns, nSubItem);
1377 }
1378
1379 static inline void LISTVIEW_GetHeaderRect(const LISTVIEW_INFO *infoPtr, INT nSubItem, LPRECT lprc)
1380 {
1381 *lprc = LISTVIEW_GetColumnInfo(infoPtr, nSubItem)->rcHeader;
1382 }
1383
1384 static inline BOOL LISTVIEW_GetItemW(const LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem)
1385 {
1386 return LISTVIEW_GetItemT(infoPtr, lpLVItem, TRUE);
1387 }
1388
1389 /* Listview invalidation functions: use _only_ these functions to invalidate */
1390
1391 static inline BOOL is_redrawing(const LISTVIEW_INFO *infoPtr)
1392 {
1393 return infoPtr->bRedraw;
1394 }
1395
1396 static inline void LISTVIEW_InvalidateRect(const LISTVIEW_INFO *infoPtr, const RECT* rect)
1397 {
1398 if(!is_redrawing(infoPtr)) return;
1399 TRACE(" invalidating rect=%s\n", wine_dbgstr_rect(rect));
1400 InvalidateRect(infoPtr->hwndSelf, rect, TRUE);
1401 }
1402
1403 static inline void LISTVIEW_InvalidateItem(const LISTVIEW_INFO *infoPtr, INT nItem)
1404 {
1405 RECT rcBox;
1406
1407 if(!is_redrawing(infoPtr)) return;
1408 LISTVIEW_GetItemBox(infoPtr, nItem, &rcBox);
1409 LISTVIEW_InvalidateRect(infoPtr, &rcBox);
1410 }
1411
1412 static inline void LISTVIEW_InvalidateSubItem(const LISTVIEW_INFO *infoPtr, INT nItem, INT nSubItem)
1413 {
1414 POINT Origin, Position;
1415 RECT rcBox;
1416
1417 if(!is_redrawing(infoPtr)) return;
1418 assert ((infoPtr->dwStyle & LVS_TYPEMASK) == LVS_REPORT);
1419 LISTVIEW_GetOrigin(infoPtr, &Origin);
1420 LISTVIEW_GetItemOrigin(infoPtr, nItem, &Position);
1421 LISTVIEW_GetHeaderRect(infoPtr, nSubItem, &rcBox);
1422 rcBox.top = 0;
1423 rcBox.bottom = infoPtr->nItemHeight;
1424 OffsetRect(&rcBox, Origin.x + Position.x, Origin.y + Position.y);
1425 LISTVIEW_InvalidateRect(infoPtr, &rcBox);
1426 }
1427
1428 static inline void LISTVIEW_InvalidateList(const LISTVIEW_INFO *infoPtr)
1429 {
1430 LISTVIEW_InvalidateRect(infoPtr, NULL);
1431 }
1432
1433 static inline void LISTVIEW_InvalidateColumn(const LISTVIEW_INFO *infoPtr, INT nColumn)
1434 {
1435 RECT rcCol;
1436
1437 if(!is_redrawing(infoPtr)) return;
1438 LISTVIEW_GetHeaderRect(infoPtr, nColumn, &rcCol);
1439 rcCol.top = infoPtr->rcList.top;
1440 rcCol.bottom = infoPtr->rcList.bottom;
1441 LISTVIEW_InvalidateRect(infoPtr, &rcCol);
1442 }
1443
1444 /***
1445 * DESCRIPTION:
1446 * Retrieves the number of items that can fit vertically in the client area.
1447 *
1448 * PARAMETER(S):
1449 * [I] infoPtr : valid pointer to the listview structure
1450 *
1451 * RETURN:
1452 * Number of items per row.
1453 */
1454 static inline INT LISTVIEW_GetCountPerRow(const LISTVIEW_INFO *infoPtr)
1455 {
1456 INT nListWidth = infoPtr->rcList.right - infoPtr->rcList.left;
1457
1458 return max(nListWidth/infoPtr->nItemWidth, 1);
1459 }
1460
1461 /***
1462 * DESCRIPTION:
1463 * Retrieves the number of items that can fit horizontally in the client
1464 * area.
1465 *
1466 * PARAMETER(S):
1467 * [I] infoPtr : valid pointer to the listview structure
1468 *
1469 * RETURN:
1470 * Number of items per column.
1471 */
1472 static inline INT LISTVIEW_GetCountPerColumn(const LISTVIEW_INFO *infoPtr)
1473 {
1474 INT nListHeight = infoPtr->rcList.bottom - infoPtr->rcList.top;
1475
1476 return max(nListHeight / infoPtr->nItemHeight, 1);
1477 }
1478
1479
1480 /*************************************************************************
1481 * LISTVIEW_ProcessLetterKeys
1482 *
1483 * Processes keyboard messages generated by pressing the letter keys
1484 * on the keyboard.
1485 * What this does is perform a case insensitive search from the
1486 * current position with the following quirks:
1487 * - If two chars or more are pressed in quick succession we search
1488 * for the corresponding string (e.g. 'abc').
1489 * - If there is a delay we wipe away the current search string and
1490 * restart with just that char.
1491 * - If the user keeps pressing the same character, whether slowly or
1492 * fast, so that the search string is entirely composed of this
1493 * character ('aaaaa' for instance), then we search for first item
1494 * that starting with that character.
1495 * - If the user types the above character in quick succession, then
1496 * we must also search for the corresponding string ('aaaaa'), and
1497 * go to that string if there is a match.
1498 *
1499 * PARAMETERS
1500 * [I] hwnd : handle to the window
1501 * [I] charCode : the character code, the actual character
1502 * [I] keyData : key data
1503 *
1504 * RETURNS
1505 *
1506 * Zero.
1507 *
1508 * BUGS
1509 *
1510 * - The current implementation has a list of characters it will
1511 * accept and it ignores everything else. In particular it will
1512 * ignore accentuated characters which seems to match what
1513 * Windows does. But I'm not sure it makes sense to follow
1514 * Windows there.
1515 * - We don't sound a beep when the search fails.
1516 *
1517 * SEE ALSO
1518 *
1519 * TREEVIEW_ProcessLetterKeys
1520 */
1521 static INT LISTVIEW_ProcessLetterKeys(LISTVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
1522 {
1523 INT nItem;
1524 INT endidx,idx;
1525 LVITEMW item;
1526 WCHAR buffer[MAX_PATH];
1527 DWORD lastKeyPressTimestamp = infoPtr->lastKeyPressTimestamp;
1528
1529 /* simple parameter checking */
1530 if (!charCode || !keyData) return 0;
1531
1532 /* only allow the valid WM_CHARs through */
1533 if (!isalnum(charCode) &&
1534 charCode != '.' && charCode != '`' && charCode != '!' &&
1535 charCode != '@' && charCode != '#' && charCode != '$' &&
1536 charCode != '%' && charCode != '^' && charCode != '&' &&
1537 charCode != '*' && charCode != '(' && charCode != ')' &&
1538 charCode != '-' && charCode != '_' && charCode != '+' &&
1539 charCode != '=' && charCode != '\\'&& charCode != ']' &&
1540 charCode != '}' && charCode != '[' && charCode != '{' &&
1541 charCode != '/' && charCode != '?' && charCode != '>' &&
1542 charCode != '<' && charCode != ',' && charCode != '~')
1543 return 0;
1544
1545 /* if there's one item or less, there is no where to go */
1546 if (infoPtr->nItemCount <= 1) return 0;
1547
1548 /* update the search parameters */
1549 infoPtr->lastKeyPressTimestamp = GetTickCount();
1550 if (infoPtr->lastKeyPressTimestamp - lastKeyPressTimestamp < KEY_DELAY) {
1551 if (infoPtr->nSearchParamLength < MAX_PATH)
1552 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
1553 if (infoPtr->charCode != charCode)
1554 infoPtr->charCode = charCode = 0;
1555 } else {
1556 infoPtr->charCode=charCode;
1557 infoPtr->szSearchParam[0]=charCode;
1558 infoPtr->nSearchParamLength=1;
1559 /* Redundant with the 1 char string */
1560 charCode=0;
1561 }
1562
1563 /* and search from the current position */
1564 nItem=-1;
1565 if (infoPtr->nFocusedItem >= 0) {
1566 endidx=infoPtr->nFocusedItem;
1567 idx=endidx;
1568 /* if looking for single character match,
1569 * then we must always move forward
1570 */
1571 if (infoPtr->nSearchParamLength == 1)
1572 idx++;
1573 } else {
1574 endidx=infoPtr->nItemCount;
1575 idx=0;
1576 }
1577 do {
1578 if (idx == infoPtr->nItemCount) {
1579 if (endidx == infoPtr->nItemCount || endidx == 0)
1580 break;
1581 idx=0;
1582 }
1583
1584 /* get item */
1585 item.mask = LVIF_TEXT;
1586 item.iItem = idx;
1587 item.iSubItem = 0;
1588 item.pszText = buffer;
1589 item.cchTextMax = MAX_PATH;
1590 if (!LISTVIEW_GetItemW(infoPtr, &item)) return 0;
1591
1592 /* check for a match */
1593 if (lstrncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
1594 nItem=idx;
1595 break;
1596 } else if ( (charCode != 0) && (nItem == -1) && (nItem != infoPtr->nFocusedItem) &&
1597 (lstrncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
1598 /* This would work but we must keep looking for a longer match */
1599 nItem=idx;
1600 }
1601 idx++;
1602 } while (idx != endidx);
1603
1604 if (nItem != -1)
1605 LISTVIEW_KeySelection(infoPtr, nItem);
1606
1607 return 0;
1608 }
1609
1610 /*************************************************************************
1611 * LISTVIEW_UpdateHeaderSize [Internal]
1612 *
1613 * Function to resize the header control
1614 *
1615 * PARAMS
1616 * [I] hwnd : handle to a window
1617 * [I] nNewScrollPos : scroll pos to set
1618 *
1619 * RETURNS
1620 * None.
1621 */
1622 static void LISTVIEW_UpdateHeaderSize(const LISTVIEW_INFO *infoPtr, INT nNewScrollPos)
1623 {
1624 RECT winRect;
1625 POINT point[2];
1626
1627 TRACE("nNewScrollPos=%d\n", nNewScrollPos);
1628
1629 GetWindowRect(infoPtr->hwndHeader, &winRect);
1630 point[0].x = winRect.left;
1631 point[0].y = winRect.top;
1632 point[1].x = winRect.right;
1633 point[1].y = winRect.bottom;
1634
1635 MapWindowPoints(HWND_DESKTOP, infoPtr->hwndSelf, point, 2);
1636 point[0].x = -nNewScrollPos;
1637 point[1].x += nNewScrollPos;
1638
1639 SetWindowPos(infoPtr->hwndHeader,0,
1640 point[0].x,point[0].y,point[1].x,point[1].y,
1641 (infoPtr->dwStyle & LVS_NOCOLUMNHEADER) ? SWP_HIDEWINDOW : SWP_SHOWWINDOW |
1642 SWP_NOZORDER | SWP_NOACTIVATE);
1643 }
1644
1645 /***
1646 * DESCRIPTION:
1647 * Update the scrollbars. This functions should be called whenever
1648 * the content, size or view changes.
1649 *
1650 * PARAMETER(S):
1651 * [I] infoPtr : valid pointer to the listview structure
1652 *
1653 * RETURN:
1654 * None
1655 */
1656 static void LISTVIEW_UpdateScroll(const LISTVIEW_INFO *infoPtr)
1657 {
1658 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1659 SCROLLINFO horzInfo, vertInfo;
1660 INT dx, dy;
1661
1662 if ((infoPtr->dwStyle & LVS_NOSCROLL) || !is_redrawing(infoPtr)) return;
1663
1664 ZeroMemory(&horzInfo, sizeof(SCROLLINFO));
1665 horzInfo.cbSize = sizeof(SCROLLINFO);
1666 horzInfo.nPage = infoPtr->rcList.right - infoPtr->rcList.left;
1667
1668 /* for now, we'll set info.nMax to the _count_, and adjust it later */
1669 if (uView == LVS_LIST)
1670 {
1671 INT nPerCol = LISTVIEW_GetCountPerColumn(infoPtr);
1672 horzInfo.nMax = (infoPtr->nItemCount + nPerCol - 1) / nPerCol;
1673
1674 /* scroll by at least one column per page */
1675 if(horzInfo.nPage < infoPtr->nItemWidth)
1676 horzInfo.nPage = infoPtr->nItemWidth;
1677
1678 horzInfo.nPage /= infoPtr->nItemWidth;
1679 }
1680 else if (uView == LVS_REPORT)
1681 {
1682 horzInfo.nMax = infoPtr->nItemWidth;
1683 }
1684 else /* LVS_ICON, or LVS_SMALLICON */
1685 {
1686 RECT rcView;
1687
1688 if (LISTVIEW_GetViewRect(infoPtr, &rcView)) horzInfo.nMax = rcView.right - rcView.left;
1689 }
1690
1691 horzInfo.fMask = SIF_RANGE | SIF_PAGE;
1692 horzInfo.nMax = max(horzInfo.nMax - 1, 0);
1693 dx = GetScrollPos(infoPtr->hwndSelf, SB_HORZ);
1694 dx -= SetScrollInfo(infoPtr->hwndSelf, SB_HORZ, &horzInfo, TRUE);
1695 TRACE("horzInfo=%s\n", debugscrollinfo(&horzInfo));
1696
1697 /* Setting the horizontal scroll can change the listview size
1698 * (and potentially everything else) so we need to recompute
1699 * everything again for the vertical scroll
1700 */
1701
1702 ZeroMemory(&vertInfo, sizeof(SCROLLINFO));
1703 vertInfo.cbSize = sizeof(SCROLLINFO);
1704 vertInfo.nPage = infoPtr->rcList.bottom - infoPtr->rcList.top;
1705
1706 if (uView == LVS_REPORT)
1707 {
1708 vertInfo.nMax = infoPtr->nItemCount;
1709
1710 /* scroll by at least one page */
1711 if(vertInfo.nPage < infoPtr->nItemHeight)
1712 vertInfo.nPage = infoPtr->nItemHeight;
1713
1714 vertInfo.nPage /= infoPtr->nItemHeight;
1715 }
1716 else if (uView != LVS_LIST) /* LVS_ICON, or LVS_SMALLICON */
1717 {
1718 RECT rcView;
1719
1720 if (LISTVIEW_GetViewRect(infoPtr, &rcView)) vertInfo.nMax = rcView.bottom - rcView.top;
1721 }
1722
1723 vertInfo.fMask = SIF_RANGE | SIF_PAGE;
1724 vertInfo.nMax = max(vertInfo.nMax - 1, 0);
1725 dy = GetScrollPos(infoPtr->hwndSelf, SB_VERT);
1726 dy -= SetScrollInfo(infoPtr->hwndSelf, SB_VERT, &vertInfo, TRUE);
1727 TRACE("vertInfo=%s\n", debugscrollinfo(&vertInfo));
1728
1729 /* Change of the range may have changed the scroll pos. If so move the content */
1730 if (dx != 0 || dy != 0)
1731 {
1732 RECT listRect;
1733 listRect = infoPtr->rcList;
1734 ScrollWindowEx(infoPtr->hwndSelf, dx, dy, &listRect, &listRect, 0, 0,
1735 SW_ERASE | SW_INVALIDATE);
1736 }
1737
1738 /* Update the Header Control */
1739 if (uView == LVS_REPORT)
1740 {
1741 horzInfo.fMask = SIF_POS;
1742 GetScrollInfo(infoPtr->hwndSelf, SB_HORZ, &horzInfo);
1743 LISTVIEW_UpdateHeaderSize(infoPtr, horzInfo.nPos);
1744 }
1745 }
1746
1747
1748 /***
1749 * DESCRIPTION:
1750 * Shows/hides the focus rectangle.
1751 *
1752 * PARAMETER(S):
1753 * [I] infoPtr : valid pointer to the listview structure
1754 * [I] fShow : TRUE to show the focus, FALSE to hide it.
1755 *
1756 * RETURN:
1757 * None
1758 */
1759 static void LISTVIEW_ShowFocusRect(const LISTVIEW_INFO *infoPtr, BOOL fShow)
1760 {
1761 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1762 HDC hdc;
1763
1764 TRACE("fShow=%d, nItem=%d\n", fShow, infoPtr->nFocusedItem);
1765
1766 if (infoPtr->nFocusedItem < 0) return;
1767
1768 /* we need some gymnastics in ICON mode to handle large items */
1769 if ( (infoPtr->dwStyle & LVS_TYPEMASK) == LVS_ICON )
1770 {
1771 RECT rcBox;
1772
1773 LISTVIEW_GetItemBox(infoPtr, infoPtr->nFocusedItem, &rcBox);
1774 if ((rcBox.bottom - rcBox.top) > infoPtr->nItemHeight)
1775 {
1776 LISTVIEW_InvalidateRect(infoPtr, &rcBox);
1777 return;
1778 }
1779 }
1780
1781 if (!(hdc = GetDC(infoPtr->hwndSelf))) return;
1782
1783 /* for some reason, owner draw should work only in report mode */
1784 if ((infoPtr->dwStyle & LVS_OWNERDRAWFIXED) && (uView == LVS_REPORT))
1785 {
1786 DRAWITEMSTRUCT dis;
1787 LVITEMW item;
1788
1789 HFONT hFont = infoPtr->hFont ? infoPtr->hFont : infoPtr->hDefaultFont;
1790 HFONT hOldFont = SelectObject(hdc, hFont);
1791
1792 item.iItem = infoPtr->nFocusedItem;
1793 item.iSubItem = 0;
1794 item.mask = LVIF_PARAM;
1795 if (!LISTVIEW_GetItemW(infoPtr, &item)) goto done;
1796
1797 ZeroMemory(&dis, sizeof(dis));
1798 dis.CtlType = ODT_LISTVIEW;
1799 dis.CtlID = (UINT)GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1800 dis.itemID = item.iItem;
1801 dis.itemAction = ODA_FOCUS;
1802 if (fShow) dis.itemState |= ODS_FOCUS;
1803 dis.hwndItem = infoPtr->hwndSelf;
1804 dis.hDC = hdc;
1805 LISTVIEW_GetItemBox(infoPtr, dis.itemID, &dis.rcItem);
1806 dis.itemData = item.lParam;
1807
1808 SendMessageW(infoPtr->hwndNotify, WM_DRAWITEM, dis.CtlID, (LPARAM)&dis);
1809
1810 SelectObject(hdc, hOldFont);
1811 }
1812 else
1813 {
1814 DrawFocusRect(hdc, &infoPtr->rcFocus);
1815 }
1816 done:
1817 ReleaseDC(infoPtr->hwndSelf, hdc);
1818 }
1819
1820 /***
1821 * Invalidates all visible selected items.
1822 */
1823 static void LISTVIEW_InvalidateSelectedItems(const LISTVIEW_INFO *infoPtr)
1824 {
1825 ITERATOR i;
1826
1827 iterator_frameditems(&i, infoPtr, &infoPtr->rcList);
1828 while(iterator_next(&i))
1829 {
1830 if (LISTVIEW_GetItemState(infoPtr, i.nItem, LVIS_SELECTED))
1831 LISTVIEW_InvalidateItem(infoPtr, i.nItem);
1832 }
1833 iterator_destroy(&i);
1834 }
1835
1836
1837 /***
1838 * DESCRIPTION: [INTERNAL]
1839 * Computes an item's (left,top) corner, relative to rcView.
1840 * That is, the position has NOT been made relative to the Origin.
1841 * This is deliberate, to avoid computing the Origin over, and
1842 * over again, when this function is called in a loop. Instead,
1843 * one can factor the computation of the Origin before the loop,
1844 * and offset the value returned by this function, on every iteration.
1845 *
1846 * PARAMETER(S):
1847 * [I] infoPtr : valid pointer to the listview structure
1848 * [I] nItem : item number
1849 * [O] lpptOrig : item top, left corner
1850 *
1851 * RETURN:
1852 * None.
1853 */
1854 static void LISTVIEW_GetItemOrigin(const LISTVIEW_INFO *infoPtr, INT nItem, LPPOINT lpptPosition)
1855 {
1856 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1857
1858 assert(nItem >= 0 && nItem < infoPtr->nItemCount);
1859
1860 if ((uView == LVS_SMALLICON) || (uView == LVS_ICON))
1861 {
1862 lpptPosition->x = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosX, nItem);
1863 lpptPosition->y = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosY, nItem);
1864 }
1865 else if (uView == LVS_LIST)
1866 {
1867 INT nCountPerColumn = LISTVIEW_GetCountPerColumn(infoPtr);
1868 lpptPosition->x = nItem / nCountPerColumn * infoPtr->nItemWidth;
1869 lpptPosition->y = nItem % nCountPerColumn * infoPtr->nItemHeight;
1870 }
1871 else /* LVS_REPORT */
1872 {
1873 lpptPosition->x = 0;
1874 lpptPosition->y = nItem * infoPtr->nItemHeight;
1875 }
1876 }
1877
1878 /***
1879 * DESCRIPTION: [INTERNAL]
1880 * Compute the rectangles of an item. This is to localize all
1881 * the computations in one place. If you are not interested in some
1882 * of these values, simply pass in a NULL -- the function is smart
1883 * enough to compute only what's necessary. The function computes
1884 * the standard rectangles (BOUNDS, ICON, LABEL) plus a non-standard
1885 * one, the BOX rectangle. This rectangle is very cheap to compute,
1886 * and is guaranteed to contain all the other rectangles. Computing
1887 * the ICON rect is also cheap, but all the others are potentially
1888 * expensive. This gives an easy and effective optimization when
1889 * searching (like point inclusion, or rectangle intersection):
1890 * first test against the BOX, and if TRUE, test against the desired
1891 * rectangle.
1892 * If the function does not have all the necessary information
1893 * to computed the requested rectangles, will crash with a
1894 * failed assertion. This is done so we catch all programming
1895 * errors, given that the function is called only from our code.
1896 *
1897 * We have the following 'special' meanings for a few fields:
1898 * * If LVIS_FOCUSED is set, we assume the item has the focus
1899 * This is important in ICON mode, where it might get a larger
1900 * then usual rectangle
1901 *
1902 * Please note that subitem support works only in REPORT mode.
1903 *
1904 * PARAMETER(S):
1905 * [I] infoPtr : valid pointer to the listview structure
1906 * [I] lpLVItem : item to compute the measures for
1907 * [O] lprcBox : ptr to Box rectangle
1908 * Same as LVM_GETITEMRECT with LVIR_BOUNDS
1909 * [0] lprcSelectBox : ptr to select box rectangle
1910 * Same as LVM_GETITEMRECT with LVIR_SELECTEDBOUNDS
1911 * [O] lprcIcon : ptr to Icon rectangle
1912 * Same as LVM_GETITEMRECT with LVIR_ICON
1913 * [O] lprcStateIcon: ptr to State Icon rectangle
1914 * [O] lprcLabel : ptr to Label rectangle
1915 * Same as LVM_GETITEMRECT with LVIR_LABEL
1916 *
1917 * RETURN:
1918 * None.
1919 */
1920 static void LISTVIEW_GetItemMetrics(const LISTVIEW_INFO *infoPtr, const LVITEMW *lpLVItem,
1921 LPRECT lprcBox, LPRECT lprcSelectBox,
1922 LPRECT lprcIcon, LPRECT lprcStateIcon, LPRECT lprcLabel)
1923 {
1924 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
1925 BOOL doSelectBox = FALSE, doIcon = FALSE, doLabel = FALSE, oversizedBox = FALSE;
1926 RECT Box, SelectBox, Icon, Label;
1927 COLUMN_INFO *lpColumnInfo = NULL;
1928 SIZE labelSize = { 0, 0 };
1929
1930 TRACE("(lpLVItem=%s)\n", debuglvitem_t(lpLVItem, TRUE));
1931
1932 /* Be smart and try to figure out the minimum we have to do */
1933 if (lpLVItem->iSubItem) assert(uView == LVS_REPORT);
1934 if (uView == LVS_ICON && (lprcBox || lprcLabel))
1935 {
1936 assert((lpLVItem->mask & LVIF_STATE) && (lpLVItem->stateMask & LVIS_FOCUSED));
1937 if (lpLVItem->state & LVIS_FOCUSED) oversizedBox = doLabel = TRUE;
1938 }
1939 if (lprcSelectBox) doSelectBox = TRUE;
1940 if (lprcLabel) doLabel = TRUE;
1941 if (doLabel || lprcIcon || lprcStateIcon) doIcon = TRUE;
1942 if (doSelectBox)
1943 {
1944 doIcon = TRUE;
1945 doLabel = TRUE;
1946 }
1947
1948 /************************************************************/
1949 /* compute the box rectangle (it should be cheap to do) */
1950 /************************************************************/
1951 if (lpLVItem->iSubItem || uView == LVS_REPORT)
1952 lpColumnInfo = LISTVIEW_GetColumnInfo(infoPtr, lpLVItem->iSubItem);
1953
1954 if (lpLVItem->iSubItem)
1955 {
1956 Box = lpColumnInfo->rcHeader;
1957 }
1958 else
1959 {
1960 Box.left = 0;
1961 Box.right = infoPtr->nItemWidth;
1962 }
1963 Box.top = 0;
1964 Box.bottom = infoPtr->nItemHeight;
1965
1966 /******************************************************************/
1967 /* compute ICON bounding box (ala LVM_GETITEMRECT) and STATEICON */
1968 /******************************************************************/
1969 if (doIcon)
1970 {
1971 LONG state_width = 0;
1972
1973 if (infoPtr->himlState && lpLVItem->iSubItem == 0)
1974 state_width = infoPtr->iconStateSize.cx;
1975
1976 if (uView == LVS_ICON)
1977 {
1978 Icon.left = Box.left + state_width;
1979 if (infoPtr->himlNormal)
1980 Icon.left += (infoPtr->nItemWidth - infoPtr->iconSize.cx - state_width) / 2;
1981 Icon.top = Box.top + ICON_TOP_PADDING;
1982 Icon.right = Icon.left;
1983 Icon.bottom = Icon.top;
1984 if (infoPtr->himlNormal)
1985 {
1986 Icon.right += infoPtr->iconSize.cx;
1987 Icon.bottom += infoPtr->iconSize.cy;
1988 }
1989 }
1990 else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */
1991 {
1992 Icon.left = Box.left + state_width;
1993
1994 if (uView == LVS_REPORT)
1995 Icon.left += REPORT_MARGINX;
1996
1997 Icon.top = Box.top;
1998 Icon.right = Icon.left;
1999 if (infoPtr->himlSmall &&
2000 (!lpColumnInfo || lpLVItem->iSubItem == 0 || (lpColumnInfo->fmt & LVCFMT_IMAGE) ||
2001 ((infoPtr->dwLvExStyle & LVS_EX_SUBITEMIMAGES) && lpLVItem->iImage != I_IMAGECALLBACK)))
2002 Icon.right += infoPtr->iconSize.cx;
2003 Icon.bottom = Icon.top + infoPtr->iconSize.cy;
2004 }
2005 if(lprcIcon) *lprcIcon = Icon;
2006 TRACE(" - icon=%s\n", wine_dbgstr_rect(&Icon));
2007
2008 /* TODO: is this correct? */
2009 if (lprcStateIcon)
2010 {
2011 lprcStateIcon->left = Icon.left - state_width;
2012 lprcStateIcon->right = Icon.left;
2013 lprcStateIcon->top = Icon.top;
2014 lprcStateIcon->bottom = lprcStateIcon->top + infoPtr->iconSize.cy;
2015 TRACE(" - state icon=%s\n", wine_dbgstr_rect(lprcStateIcon));
2016 }
2017 }
2018 else Icon.right = 0;
2019
2020 /************************************************************/
2021 /* compute LABEL bounding box (ala LVM_GETITEMRECT) */
2022 /************************************************************/
2023 if (doLabel)
2024 {
2025 /* calculate how far to the right can the label stretch */
2026 Label.right = Box.right;
2027 if (uView == LVS_REPORT)
2028 {
2029 if (lpLVItem->iSubItem == 0) Label = lpColumnInfo->rcHeader;
2030 }
2031
2032 if (lpLVItem->iSubItem || ((infoPtr->dwStyle & LVS_OWNERDRAWFIXED) && uView == LVS_REPORT))
2033 {
2034 labelSize.cx = infoPtr->nItemWidth;
2035 labelSize.cy = infoPtr->nItemHeight;
2036 goto calc_label;
2037 }
2038
2039 /* we need the text in non owner draw mode */
2040 assert(lpLVItem->mask & LVIF_TEXT);
2041 if (is_textT(lpLVItem->pszText, TRUE))
2042 {
2043 HFONT hFont = infoPtr->hFont ? infoPtr->hFont : infoPtr->hDefaultFont;
2044 HDC hdc = GetDC(infoPtr->hwndSelf);
2045 HFONT hOldFont = SelectObject(hdc, hFont);
2046 UINT uFormat;
2047 RECT rcText;
2048
2049 /* compute rough rectangle where the label will go */
2050 SetRectEmpty(&rcText);
2051 rcText.right = infoPtr->nItemWidth - TRAILING_LABEL_PADDING;
2052 rcText.bottom = infoPtr->nItemHeight;
2053 if (uView == LVS_ICON)
2054 rcText.bottom -= ICON_TOP_PADDING + infoPtr->iconSize.cy + ICON_BOTTOM_PADDING;
2055
2056 /* now figure out the flags */
2057 if (uView == LVS_ICON)
2058 uFormat = oversizedBox ? LV_FL_DT_FLAGS : LV_ML_DT_FLAGS;
2059 else
2060 uFormat = LV_SL_DT_FLAGS;
2061
2062 DrawTextW (hdc, lpLVItem->pszText, -1, &rcText, uFormat | DT_CALCRECT);
2063
2064 labelSize.cx = min(rcText.right - rcText.left + TRAILING_LABEL_PADDING, infoPtr->nItemWidth);
2065 labelSize.cy = rcText.bottom - rcText.top;
2066
2067 SelectObject(hdc, hOldFont);
2068 ReleaseDC(infoPtr->hwndSelf, hdc);
2069 }
2070
2071 calc_label:
2072 if (uView == LVS_ICON)
2073 {
2074 Label.left = Box.left + (infoPtr->nItemWidth - labelSize.cx) / 2;
2075 Label.top = Box.top + ICON_TOP_PADDING_HITABLE +
2076 infoPtr->iconSize.cy + ICON_BOTTOM_PADDING;
2077 Label.right = Label.left + labelSize.cx;
2078 Label.bottom = Label.top + infoPtr->nItemHeight;
2079 if (!oversizedBox && labelSize.cy > infoPtr->ntmHeight)
2080 {
2081 labelSize.cy = min(Box.bottom - Label.top, labelSize.cy);
2082 labelSize.cy /= infoPtr->ntmHeight;
2083 labelSize.cy = max(labelSize.cy, 1);
2084 labelSize.cy *= infoPtr->ntmHeight;
2085 }
2086 Label.bottom = Label.top + labelSize.cy + HEIGHT_PADDING;
2087 }
2088 else if (uView == LVS_REPORT)
2089 {
2090 Label.left = Icon.right;
2091 Label.top = Box.top;
2092 Label.right = lpColumnInfo->rcHeader.right;
2093 Label.bottom = Label.top + infoPtr->nItemHeight;
2094 }
2095 else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */
2096 {
2097 Label.left = Icon.right;
2098 Label.top = Box.top;
2099 Label.right = min(Label.left + labelSize.cx, Label.right);
2100 Label.bottom = Label.top + infoPtr->nItemHeight;
2101 }
2102
2103 if (lprcLabel) *lprcLabel = Label;
2104 TRACE(" - label=%s\n", wine_dbgstr_rect(&Label));
2105 }
2106
2107 /************************************************************/
2108 /* compute STATEICON bounding box */
2109 /************************************************************/
2110 if (doSelectBox)
2111 {
2112 if (uView == LVS_REPORT)
2113 {
2114 SelectBox.left = Icon.right; /* FIXME: should be Icon.left */
2115 SelectBox.top = Box.top;
2116 SelectBox.bottom = Box.bottom;
2117 if (lpLVItem->iSubItem == 0)
2118 {
2119 /* we need the indent in report mode */
2120 assert(lpLVItem->mask & LVIF_INDENT);
2121 SelectBox.left += infoPtr->iconSize.cx * lpLVItem->iIndent;
2122 }
2123 SelectBox.right = min(SelectBox.left + labelSize.cx, Label.right);
2124 }
2125 else
2126 {
2127 UnionRect(&SelectBox, &Icon, &Label);
2128 }
2129 if (lprcSelectBox) *lprcSelectBox = SelectBox;
2130 TRACE(" - select box=%s\n", wine_dbgstr_rect(&SelectBox));
2131 }
2132
2133 /* Fix the Box if necessary */
2134 if (lprcBox)
2135 {
2136 if (oversizedBox) UnionRect(lprcBox, &Box, &Label);
2137 else *lprcBox = Box;
2138 }
2139 TRACE(" - box=%s\n", wine_dbgstr_rect(&Box));
2140 }
2141
2142 /***
2143 * DESCRIPTION: [INTERNAL]
2144 *
2145 * PARAMETER(S):
2146 * [I] infoPtr : valid pointer to the listview structure
2147 * [I] nItem : item number
2148 * [O] lprcBox : ptr to Box rectangle
2149 *
2150 * RETURN:
2151 * None.
2152 */
2153 static void LISTVIEW_GetItemBox(const LISTVIEW_INFO *infoPtr, INT nItem, LPRECT lprcBox)
2154 {
2155 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
2156 WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
2157 POINT Position, Origin;
2158 LVITEMW lvItem;
2159
2160 LISTVIEW_GetOrigin(infoPtr, &Origin);
2161 LISTVIEW_GetItemOrigin(infoPtr, nItem, &Position);
2162
2163 /* Be smart and try to figure out the minimum we have to do */
2164 lvItem.mask = 0;
2165 if (uView == LVS_ICON && infoPtr->bFocus && LISTVIEW_GetItemState(infoPtr, nItem, LVIS_FOCUSED))
2166 lvItem.mask |= LVIF_TEXT;
2167 lvItem.iItem = nItem;
2168 lvItem.iSubItem = 0;
2169 lvItem.pszText = szDispText;
2170 lvItem.cchTextMax = DISP_TEXT_SIZE;
2171 if (lvItem.mask) LISTVIEW_GetItemW(infoPtr, &lvItem);
2172 if (uView == LVS_ICON)
2173 {
2174 lvItem.mask |= LVIF_STATE;
2175 lvItem.stateMask = LVIS_FOCUSED;
2176 lvItem.state = (lvItem.mask & LVIF_TEXT ? LVIS_FOCUSED : 0);
2177 }
2178 LISTVIEW_GetItemMetrics(infoPtr, &lvItem, lprcBox, 0, 0, 0, 0);
2179
2180 OffsetRect(lprcBox, Position.x + Origin.x, Position.y + Origin.y);
2181 }
2182
2183
2184 /***
2185 * DESCRIPTION:
2186 * Returns the current icon position, and advances it along the top.
2187 * The returned position is not offset by Origin.
2188 *
2189 * PARAMETER(S):
2190 * [I] infoPtr : valid pointer to the listview structure
2191 * [O] lpPos : will get the current icon position
2192 *
2193 * RETURN:
2194 * None
2195 */
2196 static void LISTVIEW_NextIconPosTop(LISTVIEW_INFO *infoPtr, LPPOINT lpPos)
2197 {
2198 INT nListWidth = infoPtr->rcList.right - infoPtr->rcList.left;
2199
2200 *lpPos = infoPtr->currIconPos;
2201
2202 infoPtr->currIconPos.x += infoPtr->nItemWidth;
2203 if (infoPtr->currIconPos.x + infoPtr->nItemWidth <= nListWidth) return;
2204
2205 infoPtr->currIconPos.x = 0;
2206 infoPtr->currIconPos.y += infoPtr->nItemHeight;
2207 }
2208
2209
2210 /***
2211 * DESCRIPTION:
2212 * Returns the current icon position, and advances it down the left edge.
2213 * The returned position is not offset by Origin.
2214 *
2215 * PARAMETER(S):
2216 * [I] infoPtr : valid pointer to the listview structure
2217 * [O] lpPos : will get the current icon position
2218 *
2219 * RETURN:
2220 * None
2221 */
2222 static void LISTVIEW_NextIconPosLeft(LISTVIEW_INFO *infoPtr, LPPOINT lpPos)
2223 {
2224 INT nListHeight = infoPtr->rcList.bottom - infoPtr->rcList.top;
2225
2226 *lpPos = infoPtr->currIconPos;
2227
2228 infoPtr->currIconPos.y += infoPtr->nItemHeight;
2229 if (infoPtr->currIconPos.y + infoPtr->nItemHeight <= nListHeight) return;
2230
2231 infoPtr->currIconPos.x += infoPtr->nItemWidth;
2232 infoPtr->currIconPos.y = 0;
2233 }
2234
2235
2236 /***
2237 * DESCRIPTION:
2238 * Moves an icon to the specified position.
2239 * It takes care of invalidating the item, etc.
2240 *
2241 * PARAMETER(S):
2242 * [I] infoPtr : valid pointer to the listview structure
2243 * [I] nItem : the item to move
2244 * [I] lpPos : the new icon position
2245 * [I] isNew : flags the item as being new
2246 *
2247 * RETURN:
2248 * Success: TRUE
2249 * Failure: FALSE
2250 */
2251 static BOOL LISTVIEW_MoveIconTo(const LISTVIEW_INFO *infoPtr, INT nItem, const POINT *lppt, BOOL isNew)
2252 {
2253 POINT old;
2254
2255 if (!isNew)
2256 {
2257 old.x = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosX, nItem);
2258 old.y = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosY, nItem);
2259
2260 if (lppt->x == old.x && lppt->y == old.y) return TRUE;
2261 LISTVIEW_InvalidateItem(infoPtr, nItem);
2262 }
2263
2264 /* Allocating a POINTER for every item is too resource intensive,
2265 * so we'll keep the (x,y) in different arrays */
2266 if (!DPA_SetPtr(infoPtr->hdpaPosX, nItem, (void *)(LONG_PTR)lppt->x)) return FALSE;
2267 if (!DPA_SetPtr(infoPtr->hdpaPosY, nItem, (void *)(LONG_PTR)lppt->y)) return FALSE;
2268
2269 LISTVIEW_InvalidateItem(infoPtr, nItem);
2270
2271 return TRUE;
2272 }
2273
2274 /***
2275 * DESCRIPTION:
2276 * Arranges listview items in icon display mode.
2277 *
2278 * PARAMETER(S):
2279 * [I] infoPtr : valid pointer to the listview structure
2280 * [I] nAlignCode : alignment code
2281 *
2282 * RETURN:
2283 * SUCCESS : TRUE
2284 * FAILURE : FALSE
2285 */
2286 static BOOL LISTVIEW_Arrange(LISTVIEW_INFO *infoPtr, INT nAlignCode)
2287 {
2288 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
2289 void (*next_pos)(LISTVIEW_INFO *, LPPOINT);
2290 POINT pos;
2291 INT i;
2292
2293 if (uView != LVS_ICON && uView != LVS_SMALLICON) return FALSE;
2294
2295 TRACE("nAlignCode=%d\n", nAlignCode);
2296
2297 if (nAlignCode == LVA_DEFAULT)
2298 {
2299 if (infoPtr->dwStyle & LVS_ALIGNLEFT) nAlignCode = LVA_ALIGNLEFT;
2300 else nAlignCode = LVA_ALIGNTOP;
2301 }
2302
2303 switch (nAlignCode)
2304 {
2305 case LVA_ALIGNLEFT: next_pos = LISTVIEW_NextIconPosLeft; break;
2306 case LVA_ALIGNTOP: next_pos = LISTVIEW_NextIconPosTop; break;
2307 case LVA_SNAPTOGRID: next_pos = LISTVIEW_NextIconPosTop; break; /* FIXME */
2308 default: return FALSE;
2309 }
2310
2311 infoPtr->bAutoarrange = TRUE;
2312 infoPtr->currIconPos.x = infoPtr->currIconPos.y = 0;
2313 for (i = 0; i < infoPtr->nItemCount; i++)
2314 {
2315 next_pos(infoPtr, &pos);
2316 LISTVIEW_MoveIconTo(infoPtr, i, &pos, FALSE);
2317 }
2318
2319 return TRUE;
2320 }
2321
2322 /***
2323 * DESCRIPTION:
2324 * Retrieves the bounding rectangle of all the items, not offset by Origin.
2325 *
2326 * PARAMETER(S):
2327 * [I] infoPtr : valid pointer to the listview structure
2328 * [O] lprcView : bounding rectangle
2329 *
2330 * RETURN:
2331 * SUCCESS : TRUE
2332 * FAILURE : FALSE
2333 */
2334 static void LISTVIEW_GetAreaRect(const LISTVIEW_INFO *infoPtr, LPRECT lprcView)
2335 {
2336 INT i, x, y;
2337
2338 SetRectEmpty(lprcView);
2339
2340 switch (infoPtr->dwStyle & LVS_TYPEMASK)
2341 {
2342 case LVS_ICON:
2343 case LVS_SMALLICON:
2344 for (i = 0; i < infoPtr->nItemCount; i++)
2345 {
2346 x = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosX, i);
2347 y = (LONG_PTR)DPA_GetPtr(infoPtr->hdpaPosY, i);
2348 lprcView->right = max(lprcView->right, x);
2349 lprcView->bottom = max(lprcView->bottom, y);
2350 }
2351 if (infoPtr->nItemCount > 0)
2352 {
2353 lprcView->right += infoPtr->nItemWidth;
2354 lprcView->bottom += infoPtr->nItemHeight;
2355 }
2356 break;
2357
2358 case LVS_LIST:
2359 y = LISTVIEW_GetCountPerColumn(infoPtr);
2360 x = infoPtr->nItemCount / y;
2361 if (infoPtr->nItemCount % y) x++;
2362 lprcView->right = x * infoPtr->nItemWidth;
2363 lprcView->bottom = y * infoPtr->nItemHeight;
2364 break;
2365
2366 case LVS_REPORT:
2367 lprcView->right = infoPtr->nItemWidth;
2368 lprcView->bottom = infoPtr->nItemCount * infoPtr->nItemHeight;
2369 break;
2370 }
2371 }
2372
2373 /***
2374 * DESCRIPTION:
2375 * Retrieves the bounding rectangle of all the items.
2376 *
2377 * PARAMETER(S):
2378 * [I] infoPtr : valid pointer to the listview structure
2379 * [O] lprcView : bounding rectangle
2380 *
2381 * RETURN:
2382 * SUCCESS : TRUE
2383 * FAILURE : FALSE
2384 */
2385 static BOOL LISTVIEW_GetViewRect(const LISTVIEW_INFO *infoPtr, LPRECT lprcView)
2386 {
2387 POINT ptOrigin;
2388
2389 TRACE("(lprcView=%p)\n", lprcView);
2390
2391 if (!lprcView) return FALSE;
2392
2393 LISTVIEW_GetOrigin(infoPtr, &ptOrigin);
2394 LISTVIEW_GetAreaRect(infoPtr, lprcView);
2395 OffsetRect(lprcView, ptOrigin.x, ptOrigin.y);
2396
2397 TRACE("lprcView=%s\n", wine_dbgstr_rect(lprcView));
2398
2399 return TRUE;
2400 }
2401
2402 /***
2403 * DESCRIPTION:
2404 * Retrieves the subitem pointer associated with the subitem index.
2405 *
2406 * PARAMETER(S):
2407 * [I] hdpaSubItems : DPA handle for a specific item
2408 * [I] nSubItem : index of subitem
2409 *
2410 * RETURN:
2411 * SUCCESS : subitem pointer
2412 * FAILURE : NULL
2413 */
2414 static SUBITEM_INFO* LISTVIEW_GetSubItemPtr(HDPA hdpaSubItems, INT nSubItem)
2415 {
2416 SUBITEM_INFO *lpSubItem;
2417 INT i;
2418
2419 /* we should binary search here if need be */
2420 for (i = 1; i < DPA_GetPtrCount(hdpaSubItems); i++)
2421 {
2422 lpSubItem = (SUBITEM_INFO *)DPA_GetPtr(hdpaSubItems, i);
2423 if (lpSubItem->iSubItem == nSubItem)
2424 return lpSubItem;
2425 }
2426
2427 return NULL;
2428 }
2429
2430
2431 /***
2432 * DESCRIPTION:
2433 * Calculates the desired item width.
2434 *
2435 * PARAMETER(S):
2436 * [I] infoPtr : valid pointer to the listview structure
2437 *
2438 * RETURN:
2439 * The desired item width.
2440 */
2441 static INT LISTVIEW_CalculateItemWidth(const LISTVIEW_INFO *infoPtr)
2442 {
2443 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
2444 INT nItemWidth = 0;
2445
2446 TRACE("uView=%d\n", uView);
2447
2448 if (uView == LVS_ICON)
2449 nItemWidth = infoPtr->iconSpacing.cx;
2450 else if (uView == LVS_REPORT)
2451 {
2452 RECT rcHeader;
2453
2454 if (DPA_GetPtrCount(infoPtr->hdpaColumns) > 0)
2455 {
2456 LISTVIEW_GetHeaderRect(infoPtr, DPA_GetPtrCount(infoPtr->hdpaColumns) - 1, &rcHeader);
2457 nItemWidth = rcHeader.right;
2458 }
2459 }
2460 else /* LVS_SMALLICON, or LVS_LIST */
2461 {
2462 INT i;
2463
2464 for (i = 0; i < infoPtr->nItemCount; i++)
2465 nItemWidth = max(LISTVIEW_GetLabelWidth(infoPtr, i), nItemWidth);
2466
2467 if (infoPtr->himlSmall) nItemWidth += infoPtr->iconSize.cx;
2468 if (infoPtr->himlState) nItemWidth += infoPtr->iconStateSize.cx;
2469
2470 nItemWidth = max(DEFAULT_COLUMN_WIDTH, nItemWidth + WIDTH_PADDING);
2471 }
2472
2473 return max(nItemWidth, 1);
2474 }
2475
2476 /***
2477 * DESCRIPTION:
2478 * Calculates the desired item height.
2479 *
2480 * PARAMETER(S):
2481 * [I] infoPtr : valid pointer to the listview structure
2482 *
2483 * RETURN:
2484 * The desired item height.
2485 */
2486 static INT LISTVIEW_CalculateItemHeight(const LISTVIEW_INFO *infoPtr)
2487 {
2488 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
2489 INT nItemHeight;
2490
2491 TRACE("uView=%d\n", uView);
2492
2493 if (uView == LVS_ICON)
2494 nItemHeight = infoPtr->iconSpacing.cy;
2495 else
2496 {
2497 nItemHeight = infoPtr->ntmHeight;
2498 if (uView == LVS_REPORT && infoPtr->dwLvExStyle & LVS_EX_GRIDLINES)
2499 nItemHeight++;
2500 if (infoPtr->himlState)
2501 nItemHeight = max(nItemHeight, infoPtr->iconStateSize.cy);
2502 if (infoPtr->himlSmall)
2503 nItemHeight = max(nItemHeight, infoPtr->iconSize.cy);
2504 if (infoPtr->himlState || infoPtr->himlSmall)
2505 nItemHeight += HEIGHT_PADDING;
2506 if (infoPtr->nMeasureItemHeight > 0)
2507 nItemHeight = infoPtr->nMeasureItemHeight;
2508 }
2509
2510 return max(nItemHeight, 1);
2511 }
2512
2513 /***
2514 * DESCRIPTION:
2515 * Updates the width, and height of an item.
2516 *
2517 * PARAMETER(S):
2518 * [I] infoPtr : valid pointer to the listview structure
2519 *
2520 * RETURN:
2521 * None.
2522 */
2523 static inline void LISTVIEW_UpdateItemSize(LISTVIEW_INFO *infoPtr)
2524 {
2525 infoPtr->nItemWidth = LISTVIEW_CalculateItemWidth(infoPtr);
2526 infoPtr->nItemHeight = LISTVIEW_CalculateItemHeight(infoPtr);
2527 }
2528
2529
2530 /***
2531 * DESCRIPTION:
2532 * Retrieves and saves important text metrics info for the current
2533 * Listview font.
2534 *
2535 * PARAMETER(S):
2536 * [I] infoPtr : valid pointer to the listview structure
2537 *
2538 */
2539 static void LISTVIEW_SaveTextMetrics(LISTVIEW_INFO *infoPtr)
2540 {
2541 HDC hdc = GetDC(infoPtr->hwndSelf);
2542 HFONT hFont = infoPtr->hFont ? infoPtr->hFont : infoPtr->hDefaultFont;
2543 HFONT hOldFont = SelectObject(hdc, hFont);
2544 TEXTMETRICW tm;
2545 SIZE sz;
2546
2547 if (GetTextMetricsW(hdc, &tm))
2548 {
2549 infoPtr->ntmHeight = tm.tmHeight;
2550 infoPtr->ntmMaxCharWidth = tm.tmMaxCharWidth;
2551 }
2552
2553 if (GetTextExtentPoint32A(hdc, "...", 3, &sz))
2554 infoPtr->nEllipsisWidth = sz.cx;
2555
2556 SelectObject(hdc, hOldFont);
2557 ReleaseDC(infoPtr->hwndSelf, hdc);
2558
2559 TRACE("tmHeight=%d\n", infoPtr->ntmHeight);
2560 }
2561
2562 /***
2563 * DESCRIPTION:
2564 * A compare function for ranges
2565 *
2566 * PARAMETER(S)
2567 * [I] range1 : pointer to range 1;
2568 * [I] range2 : pointer to range 2;
2569 * [I] flags : flags
2570 *
2571 * RETURNS:
2572 * > 0 : if range 1 > range 2
2573 * < 0 : if range 2 > range 1
2574 * = 0 : if range intersects range 2
2575 */
2576 static INT CALLBACK ranges_cmp(LPVOID range1, LPVOID range2, LPARAM flags)
2577 {
2578 INT cmp;
2579
2580 if (((RANGE*)range1)->upper <= ((RANGE*)range2)->lower)
2581 cmp = -1;
2582 else if (((RANGE*)range2)->upper <= ((RANGE*)range1)->lower)
2583 cmp = 1;
2584 else
2585 cmp = 0;
2586
2587 TRACE("range1=%s, range2=%s, cmp=%d\n", debugrange((RANGE*)range1), debugrange((RANGE*)range2), cmp);
2588
2589 return cmp;
2590 }
2591
2592 #if DEBUG_RANGES
2593 #define ranges_check(ranges, desc) ranges_assert(ranges, desc, __FUNCTION__, __LINE__)
2594 #else
2595 #define ranges_check(ranges, desc) do { } while(0)
2596 #endif
2597
2598 static void ranges_assert(RANGES ranges, LPCSTR desc, const char *func, int line)
2599 {
2600 INT i;
2601 RANGE *prev, *curr;
2602
2603 TRACE("*** Checking %s:%d:%s ***\n", func, line, desc);
2604 assert (ranges);
2605 assert (DPA_GetPtrCount(ranges->hdpa) >= 0);
2606 ranges_dump(ranges);
2607 prev = (RANGE *)DPA_GetPtr(ranges->hdpa, 0);
2608 if (DPA_GetPtrCount(ranges->hdpa) > 0)
2609 assert (prev->lower >= 0 && prev->lower < prev->upper);
2610 for (i = 1; i < DPA_GetPtrCount(ranges->hdpa); i++)
2611 {
2612 curr = (RANGE *)DPA_GetPtr(ranges->hdpa, i);
2613 assert (prev->upper <= curr->lower);
2614 assert (curr->lower < curr->upper);
2615 prev = curr;
2616 }
2617 TRACE("--- Done checking---\n");
2618 }
2619
2620 static RANGES ranges_create(int count)
2621 {
2622 RANGES ranges = Alloc(sizeof(struct tagRANGES));
2623 if (!ranges) return NULL;
2624 ranges->hdpa = DPA_Create(count);
2625 if (ranges->hdpa) return ranges;
2626 Free(ranges);
2627 return NULL;
2628 }
2629
2630 static void ranges_clear(RANGES ranges)
2631 {
2632 INT i;
2633
2634 for(i = 0; i < DPA_GetPtrCount(ranges->hdpa); i++)
2635 Free(DPA_GetPtr(ranges->hdpa, i));
2636 DPA_DeleteAllPtrs(ranges->hdpa);
2637 }
2638
2639
2640 static void ranges_destroy(RANGES ranges)
2641 {
2642 if (!ranges) return;
2643 ranges_clear(ranges);
2644 DPA_Destroy(ranges->hdpa);
2645 Free(ranges);
2646 }
2647
2648 static RANGES ranges_clone(RANGES ranges)
2649 {
2650 RANGES clone;
2651 INT i;
2652
2653 if (!(clone = ranges_create(DPA_GetPtrCount(ranges->hdpa)))) goto fail;
2654
2655 for (i = 0; i < DPA_GetPtrCount(ranges->hdpa); i++)
2656 {
2657 RANGE *newrng = Alloc(sizeof(RANGE));
2658 if (!newrng) goto fail;
2659 *newrng = *((RANGE*)DPA_GetPtr(ranges->hdpa, i));
2660 DPA_SetPtr(clone->hdpa, i, newrng);
2661 }
2662 return clone;
2663
2664 fail:
2665 TRACE ("clone failed\n");
2666 ranges_destroy(clone);
2667 return NULL;
2668 }
2669
2670 static RANGES ranges_diff(RANGES ranges, RANGES sub)
2671 {
2672 INT i;
2673
2674 for (i = 0; i < DPA_GetPtrCount(sub->hdpa); i++)
2675 ranges_del(ranges, *((RANGE *)DPA_GetPtr(sub->hdpa, i)));
2676
2677 return ranges;
2678 }
2679
2680 static void ranges_dump(RANGES ranges)
2681 {
2682 INT i;
2683
2684 for (i = 0; i < DPA_GetPtrCount(ranges->hdpa); i++)
2685 TRACE(" %s\n", debugrange(DPA_GetPtr(ranges->hdpa, i)));
2686 }
2687
2688 static inline BOOL ranges_contain(RANGES ranges, INT nItem)
2689 {
2690 RANGE srchrng = { nItem, nItem + 1 };
2691
2692 TRACE("(nItem=%d)\n", nItem);
2693 ranges_check(ranges, "before contain");
2694 return DPA_Search(ranges->hdpa, &srchrng, 0, ranges_cmp, 0, DPAS_SORTED) != -1;
2695 }
2696
2697 static INT ranges_itemcount(RANGES ranges)
2698 {
2699 INT i, count = 0;
2700
2701 for (i = 0; i < DPA_GetPtrCount(ranges->hdpa); i++)
2702 {
2703 RANGE *sel = DPA_GetPtr(ranges->hdpa, i);
2704 count += sel->upper - sel->lower;
2705 }
2706
2707 return count;
2708 }
2709
2710 static BOOL ranges_shift(RANGES ranges, INT nItem, INT delta, INT nUpper)
2711 {
2712 RANGE srchrng = { nItem, nItem + 1 }, *chkrng;
2713 INT index;
2714
2715 index = DPA_Search(ranges->hdpa, &srchrng, 0, ranges_cmp, 0, DPAS_SORTED | DPAS_INSERTAFTER);
2716 if (index == -1) return TRUE;
2717
2718 for (; index < DPA_GetPtrCount(ranges->hdpa); index++)
2719 {
2720 chkrng = DPA_GetPtr(ranges->hdpa, index);
2721 if (chkrng->lower >= nItem)
2722 chkrng->lower = max(min(chkrng->lower + delta, nUpper - 1), 0);
2723 if (chkrng->upper > nItem)
2724 chkrng->upper = max(min(chkrng->upper + delta, nUpper), 0);
2725 }
2726 return TRUE;
2727 }
2728
2729 static BOOL ranges_add(RANGES ranges, RANGE range)
2730 {
2731 RANGE srchrgn;
2732 INT index;
2733
2734 TRACE("(%s)\n", debugrange(&range));
2735 ranges_check(ranges, "before add");
2736
2737 /* try find overlapping regions first */
2738 srchrgn.lower = range.lower - 1;
2739 srchrgn.upper = range.upper + 1;
2740 index = DPA_Search(ranges->hdpa, &srchrgn, 0, ranges_cmp, 0, DPAS_SORTED);
2741
2742 if (index == -1)
2743 {
2744 RANGE *newrgn;
2745
2746 TRACE("Adding new range\n");
2747
2748 /* create the brand new range to insert */
2749 newrgn = Alloc(sizeof(RANGE));
2750 if(!newrgn) goto fail;
2751 *newrgn = range;
2752
2753 /* figure out where to insert it */
2754 index = DPA_Search(ranges->hdpa, newrgn, 0, ranges_cmp, 0, DPAS_SORTED | DPAS_INSERTAFTER);
2755 TRACE("index=%d\n", index);
2756 if (index == -1) index = 0;
2757
2758 /* and get it over with */
2759 if (DPA_InsertPtr(ranges->hdpa, index, newrgn) == -1)
2760 {
2761 Free(newrgn);
2762 goto fail;
2763 }
2764 }
2765 else
2766 {
2767 RANGE *chkrgn, *mrgrgn;
2768 INT fromindex, mergeindex;
2769
2770 chkrgn = DPA_GetPtr(ranges->hdpa, index);
2771 TRACE("Merge with %s @%d\n", debugrange(chkrgn), index);
2772
2773 chkrgn->lower = min(range.lower, chkrgn->lower);
2774 chkrgn->upper = max(range.upper, chkrgn->upper);
2775
2776 TRACE("New range %s @%d\n", debugrange(chkrgn), index);
2777
2778 /* merge now common ranges */
2779 fromindex = 0;
2780 srchrgn.lower = chkrgn->lower - 1;
2781 srchrgn.upper = chkrgn->upper + 1;
2782
2783 do
2784 {
2785 mergeindex = DPA_Search(ranges->hdpa, &srchrgn, fromindex, ranges_cmp, 0, 0);
2786 if (mergeindex == -1) break;
2787 if (mergeindex == index)
2788 {
2789 fromindex = index + 1;
2790 continue;
2791 }
2792
2793 TRACE("Merge with index %i\n", mergeindex);
2794
2795 mrgrgn = DPA_GetPtr(ranges->hdpa, mergeindex);
2796 chkrgn->lower = min(chkrgn->lower, mrgrgn->lower);
2797 chkrgn->upper = max(chkrgn->upper, mrgrgn->upper);
2798 Free(mrgrgn);
2799 DPA_DeletePtr(ranges->hdpa, mergeindex);
2800 if (mergeindex < index) index --;
2801 } while(1);
2802 }
2803
2804 ranges_check(ranges, "after add");
2805 return TRUE;
2806
2807 fail:
2808 ranges_check(ranges, "failed add");
2809 return FALSE;
2810 }
2811
2812 static BOOL ranges_del(RANGES ranges, RANGE range)
2813 {
2814 RANGE *chkrgn;
2815 INT index;
2816
2817 TRACE("(%s)\n", debugrange(&range));
2818 ranges_check(ranges, "before del");
2819
2820 /* we don't use DPAS_SORTED here, since we need *
2821 * to find the first overlapping range */
2822 index = DPA_Search(ranges->hdpa, &range, 0, ranges_cmp, 0, 0);
2823 while(index != -1)
2824 {
2825 chkrgn = DPA_GetPtr(ranges->hdpa, index);
2826
2827 TRACE("Matches range %s @%d\n", debugrange(chkrgn), index);
2828
2829 /* case 1: Same range */
2830 if ( (chkrgn->upper == range.upper) &&
2831 (chkrgn->lower == range.lower) )
2832 {
2833 DPA_DeletePtr(ranges->hdpa, index);
2834 break;
2835 }
2836 /* case 2: engulf */
2837 else if ( (chkrgn->upper <= range.upper) &&
2838 (chkrgn->lower >= range.lower) )
2839 {
2840 DPA_DeletePtr(ranges->hdpa, index);
2841 }
2842 /* case 3: overlap upper */
2843 else if ( (chkrgn->upper <= range.upper) &&
2844 (chkrgn->lower < range.lower) )
2845 {
2846 chkrgn->upper = range.lower;
2847 }
2848 /* case 4: overlap lower */
2849 else if ( (chkrgn->upper > range.upper) &&
2850 (chkrgn->lower >= range.lower) )
2851 {
2852 chkrgn->lower = range.upper;
2853 break;
2854 }
2855 /* case 5: fully internal */
2856 else
2857 {
2858 RANGE tmprgn = *chkrgn, *newrgn;
2859
2860 if (!(newrgn = Alloc(sizeof(RANGE)))) goto fail;
2861 newrgn->lower = chkrgn->lower;
2862 newrgn->upper = range.lower;
2863 chkrgn->lower = range.upper;
2864 if (DPA_InsertPtr(ranges->hdpa, index, newrgn) == -1)
2865 {
2866 Free(newrgn);
2867 goto fail;
2868 }
2869 chkrgn = &tmprgn;
2870 break;
2871 }
2872
2873 index = DPA_Search(ranges->hdpa, &range, index, ranges_cmp, 0, 0);
2874 }
2875
2876 ranges_check(ranges, "after del");
2877 return TRUE;
2878
2879 fail:
2880 ranges_check(ranges, "failed del");
2881 return FALSE;
2882 }
2883
2884 /***
2885 * DESCRIPTION:
2886 * Removes all selection ranges
2887 *
2888 * Parameters(s):
2889 * [I] infoPtr : valid pointer to the listview structure
2890 * [I] toSkip : item range to skip removing the selection
2891 *
2892 * RETURNS:
2893 * SUCCESS : TRUE
2894 * FAILURE : TRUE
2895 */
2896 static BOOL LISTVIEW_DeselectAllSkipItems(LISTVIEW_INFO *infoPtr, RANGES toSkip)
2897 {
2898 LVITEMW lvItem;
2899 ITERATOR i;
2900 RANGES clone;
2901
2902 TRACE("()\n");
2903
2904 lvItem.state = 0;
2905 lvItem.stateMask = LVIS_SELECTED;
2906
2907 /* need to clone the DPA because callbacks can change it */
2908 if (!(clone = ranges_clone(infoPtr->selectionRanges))) return FALSE;
2909 iterator_rangesitems(&i, ranges_diff(clone, toSkip));
2910 while(iterator_next(&i))
2911 LISTVIEW_SetItemState(infoPtr, i.nItem, &lvItem);
2912 /* note that the iterator destructor will free the cloned range */
2913 iterator_destroy(&i);
2914
2915 return TRUE;
2916 }
2917
2918 static inline BOOL LISTVIEW_DeselectAllSkipItem(LISTVIEW_INFO *infoPtr, INT nItem)
2919 {
2920 RANGES toSkip;
2921
2922 if (!(toSkip = ranges_create(1))) return FALSE;
2923 if (nItem != -1) ranges_additem(toSkip, nItem);
2924 LISTVIEW_DeselectAllSkipItems(infoPtr, toSkip);
2925 ranges_destroy(toSkip);
2926 return TRUE;
2927 }
2928
2929 static inline BOOL LISTVIEW_DeselectAll(LISTVIEW_INFO *infoPtr)
2930 {
2931 return LISTVIEW_DeselectAllSkipItem(infoPtr, -1);
2932 }
2933
2934 /***
2935 * DESCRIPTION:
2936 * Retrieves the number of items that are marked as selected.
2937 *
2938 * PARAMETER(S):
2939 * [I] infoPtr : valid pointer to the listview structure
2940 *
2941 * RETURN:
2942 * Number of items selected.
2943 */
2944 static INT LISTVIEW_GetSelectedCount(const LISTVIEW_INFO *infoPtr)
2945 {
2946 INT nSelectedCount = 0;
2947
2948 if (infoPtr->uCallbackMask & LVIS_SELECTED)
2949 {
2950 INT i;
2951 for (i = 0; i < infoPtr->nItemCount; i++)
2952 {
2953 if (LISTVIEW_GetItemState(infoPtr, i, LVIS_SELECTED))
2954 nSelectedCount++;
2955 }
2956 }
2957 else
2958 nSelectedCount = ranges_itemcount(infoPtr->selectionRanges);
2959
2960 TRACE("nSelectedCount=%d\n", nSelectedCount);
2961 return nSelectedCount;
2962 }
2963
2964 /***
2965 * DESCRIPTION:
2966 * Manages the item focus.
2967 *
2968 * PARAMETER(S):
2969 * [I] infoPtr : valid pointer to the listview structure
2970 * [I] nItem : item index
2971 *
2972 * RETURN:
2973 * TRUE : focused item changed
2974 * FALSE : focused item has NOT changed
2975 */
2976 static inline BOOL LISTVIEW_SetItemFocus(LISTVIEW_INFO *infoPtr, INT nItem)
2977 {
2978 INT oldFocus = infoPtr->nFocusedItem;
2979 LVITEMW lvItem;
2980
2981 if (nItem == infoPtr->nFocusedItem) return FALSE;
2982
2983 lvItem.state = nItem == -1 ? 0 : LVIS_FOCUSED;
2984 lvItem.stateMask = LVIS_FOCUSED;
2985 LISTVIEW_SetItemState(infoPtr, nItem == -1 ? infoPtr->nFocusedItem : nItem, &lvItem);
2986
2987 return oldFocus != infoPtr->nFocusedItem;
2988 }
2989
2990 /* Helper function for LISTVIEW_ShiftIndices *only* */
2991 static INT shift_item(const LISTVIEW_INFO *infoPtr, INT nShiftItem, INT nItem, INT direction)
2992 {
2993 if (nShiftItem < nItem) return nShiftItem;
2994
2995 if (nShiftItem > nItem) return nShiftItem + direction;
2996
2997 if (direction > 0) return nShiftItem + direction;
2998
2999 return min(nShiftItem, infoPtr->nItemCount - 1);
3000 }
3001
3002 /**
3003 * DESCRIPTION:
3004 * Updates the various indices after an item has been inserted or deleted.
3005 *
3006 * PARAMETER(S):
3007 * [I] infoPtr : valid pointer to the listview structure
3008 * [I] nItem : item index
3009 * [I] direction : Direction of shift, +1 or -1.
3010 *
3011 * RETURN:
3012 * None
3013 */
3014 static void LISTVIEW_ShiftIndices(LISTVIEW_INFO *infoPtr, INT nItem, INT direction)
3015 {
3016 INT nNewFocus;
3017 BOOL bOldChange;
3018
3019 /* temporarily disable change notification while shifting items */
3020 bOldChange = infoPtr->bDoChangeNotify;
3021 infoPtr->bDoChangeNotify = FALSE;
3022
3023 TRACE("Shifting %iu, %i steps\n", nItem, direction);
3024
3025 ranges_shift(infoPtr->selectionRanges, nItem, direction, infoPtr->nItemCount);
3026
3027 assert(abs(direction) == 1);
3028
3029 infoPtr->nSelectionMark = shift_item(infoPtr, infoPtr->nSelectionMark, nItem, direction);
3030
3031 nNewFocus = shift_item(infoPtr, infoPtr->nFocusedItem, nItem, direction);
3032 if (nNewFocus != infoPtr->nFocusedItem)
3033 LISTVIEW_SetItemFocus(infoPtr, nNewFocus);
3034
3035 /* But we are not supposed to modify nHotItem! */
3036
3037 infoPtr->bDoChangeNotify = bOldChange;
3038 }
3039
3040
3041 /**
3042 * DESCRIPTION:
3043 * Adds a block of selections.
3044 *
3045 * PARAMETER(S):
3046 * [I] infoPtr : valid pointer to the listview structure
3047 * [I] nItem : item index
3048 *
3049 * RETURN:
3050 * Whether the window is still valid.
3051 */
3052 static BOOL LISTVIEW_AddGroupSelection(LISTVIEW_INFO *infoPtr, INT nItem)
3053 {
3054 INT nFirst = min(infoPtr->nSelectionMark, nItem);
3055 INT nLast = max(infoPtr->nSelectionMark, nItem);
3056 HWND hwndSelf = infoPtr->hwndSelf;
3057 NMLVODSTATECHANGE nmlv;
3058 LVITEMW item;
3059 BOOL bOldChange;
3060 INT i;
3061
3062 /* Temporarily disable change notification
3063 * If the control is LVS_OWNERDATA, we need to send
3064 * only one LVN_ODSTATECHANGED notification.
3065 * See MSDN documentation for LVN_ITEMCHANGED.
3066 */
3067 bOldChange = infoPtr->bDoChangeNotify;
3068 if (infoPtr->dwStyle & LVS_OWNERDATA) infoPtr->bDoChangeNotify = FALSE;
3069
3070 if (nFirst == -1) nFirst = nItem;
3071
3072 item.state = LVIS_SELECTED;
3073 item.stateMask = LVIS_SELECTED;
3074
3075 for (i = nFirst; i <= nLast; i++)
3076 LISTVIEW_SetItemState(infoPtr,i,&item);
3077
3078 ZeroMemory(&nmlv, sizeof(nmlv));
3079 nmlv.iFrom = nFirst;
3080 nmlv.iTo = nLast;
3081 nmlv.uNewState = 0;
3082 nmlv.uOldState = item.state;
3083
3084 notify_hdr(infoPtr, LVN_ODSTATECHANGED, (LPNMHDR)&nmlv);
3085 if (!IsWindow(hwndSelf))
3086 return FALSE;
3087 infoPtr->bDoChangeNotify = bOldChange;
3088 return TRUE;
3089 }
3090
3091
3092 /***
3093 * DESCRIPTION:
3094 * Sets a single group selection.
3095 *
3096 * PARAMETER(S):
3097 * [I] infoPtr : valid pointer to the listview structure
3098 * [I] nItem : item index
3099 *
3100 * RETURN:
3101 * None
3102 */
3103 static void LISTVIEW_SetGroupSelection(LISTVIEW_INFO *infoPtr, INT nItem)
3104 {
3105 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
3106 RANGES selection;
3107 LVITEMW item;
3108 ITERATOR i;
3109 BOOL bOldChange;
3110
3111 if (!(selection = ranges_create(100))) return;
3112
3113 item.state = LVIS_SELECTED;
3114 item.stateMask = LVIS_SELECTED;
3115
3116 if ((uView == LVS_LIST) || (uView == LVS_REPORT))
3117 {
3118 if (infoPtr->nSelectionMark == -1)
3119 {
3120 infoPtr->nSelectionMark = nItem;
3121 ranges_additem(selection, nItem);
3122 }
3123 else
3124 {
3125 RANGE sel;
3126
3127 sel.lower = min(infoPtr->nSelectionMark, nItem);
3128 sel.upper = max(infoPtr->nSelectionMark, nItem) + 1;
3129 ranges_add(selection, sel);
3130 }
3131 }
3132 else
3133 {
3134 RECT rcItem, rcSel, rcSelMark;
3135 POINT ptItem;
3136
3137 rcItem.left = LVIR_BOUNDS;
3138 if (!LISTVIEW_GetItemRect(infoPtr, nItem, &rcItem)) return;
3139 rcSelMark.left = LVIR_BOUNDS;
3140 if (!LISTVIEW_GetItemRect(infoPtr, infoPtr->nSelectionMark, &rcSelMark)) return;
3141 UnionRect(&rcSel, &rcItem, &rcSelMark);
3142 iterator_frameditems(&i, infoPtr, &rcSel);
3143 while(iterator_next(&i))
3144 {
3145 LISTVIEW_GetItemPosition(infoPtr, i.nItem, &ptItem);
3146 if (PtInRect(&rcSel, ptItem)) ranges_additem(selection, i.nItem);
3147 }
3148 iterator_destroy(&i);
3149 }
3150
3151 bOldChange = infoPtr->bDoChangeNotify;
3152 infoPtr->bDoChangeNotify = FALSE;
3153
3154 LISTVIEW_DeselectAllSkipItems(infoPtr, selection);
3155
3156
3157 iterator_rangesitems(&i, selection);
3158 while(iterator_next(&i))
3159 LISTVIEW_SetItemState(infoPtr, i.nItem, &item);
3160 /* this will also destroy the selection */
3161 iterator_destroy(&i);
3162
3163 infoPtr->bDoChangeNotify = bOldChange;
3164
3165 LISTVIEW_SetItemFocus(infoPtr, nItem);
3166 }
3167
3168 /***
3169 * DESCRIPTION:
3170 * Sets a single selection.
3171 *
3172 * PARAMETER(S):
3173 * [I] infoPtr : valid pointer to the listview structure
3174 * [I] nItem : item index
3175 *
3176 * RETURN:
3177 * None
3178 */
3179 static void LISTVIEW_SetSelection(LISTVIEW_INFO *infoPtr, INT nItem)
3180 {
3181 LVITEMW lvItem;
3182
3183 TRACE("nItem=%d\n", nItem);
3184
3185 LISTVIEW_DeselectAllSkipItem(infoPtr, nItem);
3186
3187 lvItem.state = LVIS_FOCUSED | LVIS_SELECTED;
3188 lvItem.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
3189 LISTVIEW_SetItemState(infoPtr, nItem, &lvItem);
3190
3191 infoPtr->nSelectionMark = nItem;
3192 }
3193
3194 /***
3195 * DESCRIPTION:
3196 * Set selection(s) with keyboard.
3197 *
3198 * PARAMETER(S):
3199 * [I] infoPtr : valid pointer to the listview structure
3200 * [I] nItem : item index
3201 *
3202 * RETURN:
3203 * SUCCESS : TRUE (needs to be repainted)
3204 * FAILURE : FALSE (nothing has changed)
3205 */
3206 static BOOL LISTVIEW_KeySelection(LISTVIEW_INFO *infoPtr, INT nItem)
3207 {
3208 /* FIXME: pass in the state */
3209 WORD wShift = HIWORD(GetKeyState(VK_SHIFT));
3210 WORD wCtrl = HIWORD(GetKeyState(VK_CONTROL));
3211 BOOL bResult = FALSE;
3212
3213 TRACE("nItem=%d, wShift=%d, wCtrl=%d\n", nItem, wShift, wCtrl);
3214 if ((nItem >= 0) && (nItem < infoPtr->nItemCount))
3215 {
3216 if (infoPtr->dwStyle & LVS_SINGLESEL)
3217 {
3218 bResult = TRUE;
3219 LISTVIEW_SetSelection(infoPtr, nItem);
3220 }
3221 else
3222 {
3223 if (wShift)
3224 {
3225 bResult = TRUE;
3226 LISTVIEW_SetGroupSelection(infoPtr, nItem);
3227 }
3228 else if (wCtrl)
3229 {
3230 LVITEMW lvItem;
3231 lvItem.state = ~LISTVIEW_GetItemState(infoPtr, nItem, LVIS_SELECTED);
3232 lvItem.stateMask = LVIS_SELECTED;
3233 LISTVIEW_SetItemState(infoPtr, nItem, &lvItem);
3234
3235 if (lvItem.state & LVIS_SELECTED)
3236 infoPtr->nSelectionMark = nItem;
3237
3238 bResult = LISTVIEW_SetItemFocus(infoPtr, nItem);
3239 }
3240 else
3241 {
3242 bResult = TRUE;
3243 LISTVIEW_SetSelection(infoPtr, nItem);
3244 }
3245 }
3246 LISTVIEW_EnsureVisible(infoPtr, nItem, FALSE);
3247 }
3248
3249 UpdateWindow(infoPtr->hwndSelf); /* update client area */
3250 return bResult;
3251 }
3252
3253 static BOOL LISTVIEW_GetItemAtPt(const LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, POINT pt)
3254 {
3255 LVHITTESTINFO lvHitTestInfo;
3256
3257 ZeroMemory(&lvHitTestInfo, sizeof(lvHitTestInfo));
3258 lvHitTestInfo.pt.x = pt.x;
3259 lvHitTestInfo.pt.y = pt.y;
3260
3261 LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, FALSE);
3262
3263 lpLVItem->mask = LVIF_PARAM;
3264 lpLVItem->iItem = lvHitTestInfo.iItem;
3265 lpLVItem->iSubItem = 0;
3266
3267 return LISTVIEW_GetItemT(infoPtr, lpLVItem, TRUE);
3268 }
3269
3270 /***
3271 * DESCRIPTION:
3272 * Called when the mouse is being actively tracked and has hovered for a specified
3273 * amount of time
3274 *
3275 * PARAMETER(S):
3276 * [I] infoPtr : valid pointer to the listview structure
3277 * [I] fwKeys : key indicator
3278 * [I] x,y : mouse position
3279 *
3280 * RETURN:
3281 * 0 if the message was processed, non-zero if there was an error
3282 *
3283 * INFO:
3284 * LVS_EX_TRACKSELECT: An item is automatically selected when the cursor remains
3285 * over the item for a certain period of time.
3286 *
3287 */
3288 static LRESULT LISTVIEW_MouseHover(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, INT y)
3289 {
3290 if (infoPtr->dwLvExStyle & LVS_EX_TRACKSELECT)
3291 {
3292 LVITEMW item;
3293 POINT pt;
3294
3295 pt.x = x;
3296 pt.y = y;
3297
3298 if (LISTVIEW_GetItemAtPt(infoPtr, &item, pt))
3299 LISTVIEW_SetSelection(infoPtr, item.iItem);
3300 }
3301
3302 return 0;
3303 }
3304
3305 /***
3306 * DESCRIPTION:
3307 * Called whenever WM_MOUSEMOVE is received.
3308 *
3309 * PARAMETER(S):
3310 * [I] infoPtr : valid pointer to the listview structure
3311 * [I] fwKeys : key indicator
3312 * [I] x,y : mouse position
3313 *
3314 * RETURN:
3315 * 0 if the message is processed, non-zero if there was an error
3316 */
3317 static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, INT y)
3318 {
3319 TRACKMOUSEEVENT trackinfo;
3320
3321 if (!(fwKeys & MK_LBUTTON))
3322 infoPtr->bLButtonDown = FALSE;
3323
3324 if (infoPtr->bLButtonDown && DragDetect(infoPtr->hwndSelf, infoPtr->ptClickPos))
3325 {
3326 LVHITTESTINFO lvHitTestInfo;
3327 NMLISTVIEW nmlv;
3328
3329 lvHitTestInfo.pt = infoPtr->ptClickPos;
3330 LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE);
3331
3332 ZeroMemory(&nmlv, sizeof(nmlv));
3333 nmlv.iItem = lvHitTestInfo.iItem;
3334 nmlv.ptAction = infoPtr->ptClickPos;
3335
3336 notify_listview(infoPtr, LVN_BEGINDRAG, &nmlv);
3337
3338 return 0;
3339 }
3340 else
3341 infoPtr->bLButtonDown = FALSE;
3342
3343 /* see if we are supposed to be tracking mouse hovering */
3344 if(infoPtr->dwLvExStyle & LVS_EX_TRACKSELECT) {
3345 /* fill in the trackinfo struct */
3346 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
3347 trackinfo.dwFlags = TME_QUERY;
3348 trackinfo.hwndTrack = infoPtr->hwndSelf;
3349 trackinfo.dwHoverTime = infoPtr->dwHoverTime;
3350
3351 /* see if we are already tracking this hwnd */
3352 _TrackMouseEvent(&trackinfo);
3353
3354 if(!(trackinfo.dwFlags & TME_HOVER)) {
3355 trackinfo.dwFlags = TME_HOVER;
3356
3357 /* call TRACKMOUSEEVENT so we receive WM_MOUSEHOVER messages */
3358 _TrackMouseEvent(&trackinfo);
3359 }
3360 }
3361
3362 return 0;
3363 }
3364
3365
3366 /***
3367 * Tests whether the item is assignable to a list with style lStyle
3368 */
3369 static inline BOOL is_assignable_item(const LVITEMW *lpLVItem, LONG lStyle)
3370 {
3371 if ( (lpLVItem->mask & LVIF_TEXT) &&
3372 (lpLVItem->pszText == LPSTR_TEXTCALLBACKW) &&
3373 (lStyle & (LVS_SORTASCENDING | LVS_SORTDESCENDING)) ) return FALSE;
3374
3375 return TRUE;
3376 }
3377
3378
3379 /***
3380 * DESCRIPTION:
3381 * Helper for LISTVIEW_SetItemT *only*: sets item attributes.
3382 *
3383 * PARAMETER(S):
3384 * [I] infoPtr : valid pointer to the listview structure
3385 * [I] lpLVItem : valid pointer to new item attributes
3386 * [I] isNew : the item being set is being inserted
3387 * [I] isW : TRUE if lpLVItem is Unicode, FALSE if it's ANSI
3388 * [O] bChanged : will be set to TRUE if the item really changed
3389 *
3390 * RETURN:
3391 * SUCCESS : TRUE
3392 * FAILURE : FALSE
3393 */
3394 static BOOL set_main_item(LISTVIEW_INFO *infoPtr, const LVITEMW *lpLVItem, BOOL isNew, BOOL isW, BOOL *bChanged)
3395 {
3396 UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
3397 ITEM_INFO *lpItem;
3398 NMLISTVIEW nmlv;
3399 UINT uChanged = 0;
3400 LVITEMW item;
3401
3402 TRACE("()\n");
3403
3404 assert(lpLVItem->iItem >= 0 && lpLVItem->iItem < infoPtr->nItemCount);
3405
3406 if (lpLVItem->mask == 0) return TRUE;
3407
3408 if (infoPtr->dwStyle & LVS_OWNERDATA)
3409 {
3410 /* a virtual listview only stores selection and focus */
3411 if (lpLVItem->mask & ~LVIF_STATE)
3412 return FALSE;
3413 lpItem = NULL;
3414 }
3415 else
3416 {
3417 HDPA hdpaSubItems = (HDPA)DPA_GetPtr(infoPtr->hdpaItems, lpLVItem->iItem);
3418 lpItem = (ITEM_INFO *)DPA_GetPtr(hdpaSubItems, 0);
3419 assert (lpItem);
3420 }
3421
3422 /* we need to get the lParam and state of the item */
3423 item.iItem = lpLVItem->iItem;
3424 item.iSubItem = lpLVItem->iSubItem;
3425 item.mask = LVIF_STATE | LVIF_PARAM;
3426 item.stateMask = ~0;
3427 item.state = 0;
3428 item.lParam = 0;
3429 if (!isNew && !LISTVIEW_GetItemW(infoPtr, &item)) return FALSE;
3430
3431 TRACE("oldState=%x, newState=%x\n", item.state, lpLVItem->state);
3432 /* determine what fields will change */
3433 if ((lpLVItem->mask & LVIF_STATE) && ((item.state ^ lpLVItem->state) & lpLVItem->stateMask & ~infoPtr->uCallbackMask))
3434 uChanged |= LVIF_STATE;
3435
3436 if ((lpLVItem->mask & LVIF_IMAGE) && (lpItem->hdr.iImage != lpLVItem->iImage))
3437 uChanged |= LVIF_IMAGE;
3438
3439 if ((lpLVItem->mask & LVIF_PARAM) && (lpItem->lParam != lpLVItem->lParam))
3440 uChanged |= LVIF_PARAM;
3441
3442 if ((lpLVItem->mask & LVIF_INDENT) && (lpItem->iIndent != lpLVItem->iIndent))
3443 uChanged |= LVIF_INDENT;
3444
3445 if ((lpLVItem->mask & LVIF_TEXT) && textcmpWT(lpItem->hdr.pszText, lpLVItem->pszText, isW))
3446 uChanged |= LVIF_TEXT;
3447
3448 TRACE("uChanged=0x%x\n", uChanged);
3449 if (!uChanged) return TRUE;
3450 *bChanged = TRUE;
3451
3452 ZeroMemory(&nmlv, sizeof(NMLISTVIEW));
3453 nmlv.iItem = lpLVItem->iItem;
3454 nmlv.uNewState = (item.state & ~lpLVItem->stateMask) | (lpLVItem->state & lpLVItem->stateMask);
3455 nmlv.uOldState = item.state;
3456 nmlv.uChanged = uChanged;
3457 nmlv.lParam = item.lParam;
3458
3459 /* send LVN_ITEMCHANGING notification, if the item is not being inserted */
3460 /* and we are _NOT_ virtual (LVS_OWNERDATA), and change notifications */
3461 /* are enabled */
3462 if(lpItem && !isNew && infoPtr->bDoChangeNotify)
3463 {
3464 HWND hwndSelf = infoPtr->hwndSelf;
3465
3466 if (notify_listview(infoPtr, LVN_ITEMCHANGING, &nmlv))
3467 return FALSE;
3468 if (!IsWindow(hwndSelf))
3469 return FALSE;
3470 }
3471
3472 /* copy information */
3473 if (lpLVItem->mask & LVIF_TEXT)
3474 textsetptrT(&lpItem->hdr.pszText, lpLVItem->pszText, isW);
3475
3476 if (lpLVItem->mask & LVIF_IMAGE)
3477 lpItem->hdr.iImage = lpLVItem->iImage;
3478
3479 if (lpLVItem->mask & LVIF_PARAM)
3480 lpItem->lParam = lpLVItem->lParam;
3481
3482 if (lpLVItem->mask & LVIF_INDENT)
3483 lpItem->iIndent = lpLVItem->iIndent;
3484
3485 if (uChanged & LVIF_STATE)
3486 {
3487 if (lpItem && (lpLVItem->stateMask & ~infoPtr->uCallbackMask & ~(LVIS_FOCUSED | LVIS_SELECTED)))
3488 {
3489 lpItem->state &= ~lpLVItem->stateMask;
3490 lpItem->state |= (lpLVItem->state & lpLVItem->stateMask);
3491 }
3492 if (lpLVItem->state & lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_SELECTED)
3493 {
3494 if (infoPtr->dwStyle & LVS_SINGLESEL) LISTVIEW_DeselectAllSkipItem(infoPtr, lpLVItem->iItem);
3495 ranges_additem(infoPtr->selectionRanges, lpLVItem->iItem);
3496 }
3497 else if (lpLVItem->stateMask & LVIS_SELECTED)
3498 ranges_delitem(infoPtr->selectionRanges, lpLVItem->iItem);
3499
3500 /* if we are asked to change focus, and we manage it, do it */
3501 if (lpLVItem->stateMa