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winedump: Free function_name on all error paths.
[wine/wine-kai.git] / dlls / comctl32 / header.c
blob73b10950a26e5889c1da7c553ba4433e280b3c10
1 /*
2 * Header control
3 *
4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Eric Kohl for CodeWeavers
6 * Copyright 2003 Maxime Bellenge
7 * Copyright 2006 Mikolaj Zalewski
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 *
23 * TODO:
24 * - Imagelist support (completed?)
25 * - Hottrack support (completed?)
26 * - Filters support (HDS_FILTER, HDI_FILTER, HDM_*FILTER*, HDN_*FILTER*)
27 * - New Windows Vista features
28 */
29
30 #include <stdarg.h>
31 #include <stdlib.h>
32 #include <string.h>
33
34 #include "windef.h"
35 #include "winbase.h"
36 #include "wine/unicode.h"
37 #include "wingdi.h"
38 #include "winuser.h"
39 #include "winnls.h"
40 #include "commctrl.h"
41 #include "comctl32.h"
42 #include "imagelist.h"
43 #include "tmschema.h"
44 #include "uxtheme.h"
45 #include "wine/debug.h"
46
47 WINE_DEFAULT_DEBUG_CHANNEL(header);
48
49 typedef struct
50 {
51 INT cxy;
52 HBITMAP hbm;
53 LPWSTR pszText;
54 INT fmt;
55 LPARAM lParam;
56 INT iImage;
57 INT iOrder; /* see documentation of HD_ITEM */
58
59 BOOL bDown; /* is item pressed? (used for drawing) */
60 RECT rect; /* bounding rectangle of the item */
61 DWORD callbackMask; /* HDI_* flags for items that are callback */
62 } HEADER_ITEM;
63
64
65 typedef struct
66 {
67 HWND hwndNotify; /* Owner window to send notifications to */
68 INT nNotifyFormat; /* format used for WM_NOTIFY messages */
69 UINT uNumItem; /* number of items (columns) */
70 INT nHeight; /* height of the header (pixels) */
71 HFONT hFont; /* handle to the current font */
72 HCURSOR hcurArrow; /* handle to the arrow cursor */
73 HCURSOR hcurDivider; /* handle to a cursor (used over dividers) <-|-> */
74 HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */
75 BOOL bCaptured; /* Is the mouse captured? */
76 BOOL bPressed; /* Is a header item pressed (down)? */
77 BOOL bDragging; /* Are we dragging an item? */
78 BOOL bTracking; /* Is in tracking mode? */
79 POINT ptLButtonDown; /* The point where the left button was pressed */
80 INT iMoveItem; /* index of tracked item. (Tracking mode) */
81 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
82 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
83 INT iHotItem; /* index of hot item (cursor is over this item) */
84 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
85 INT iMargin; /* width of the margin that surrounds a bitmap */
86
87 HIMAGELIST himl; /* handle to an image list (may be 0) */
88 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */
89 INT *order; /* array of item IDs indexed by order */
90 BOOL bRectsValid; /* validity flag for bounding rectangles */
91 } HEADER_INFO;
92
93
94 #define VERT_BORDER 4
95 #define DIVIDER_WIDTH 10
96 #define HOT_DIVIDER_WIDTH 2
97 #define MAX_HEADER_TEXT_LEN 260
98 #define HDN_UNICODE_OFFSET 20
99 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
100
101 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER)
102 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER)
103 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM))
104 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP)
105
106 #define HEADER_GetInfoPtr(hwnd) ((HEADER_INFO *)GetWindowLongPtrW(hwnd,0))
107
108 static BOOL HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask);
109 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem);
110 static LRESULT HEADER_SendNotify(HWND hwnd, UINT code, NMHDR *hdr);
111 static LRESULT HEADER_SendCtrlCustomDraw(HWND hwnd, DWORD dwDrawStage, HDC hdc, RECT *rect);
112
113 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0};
114 static WCHAR emptyString[] = {0};
115
116 static void HEADER_DisposeItem(HEADER_ITEM *lpItem)
117 {
118 if (lpItem->pszText)
119 {
120 Free(lpItem->pszText);
121 }
122 }
123
124 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, HDITEMW *phdi, BOOL fUnicode)
125 {
126 if (mask & HDI_UNSUPPORTED_FIELDS)
127 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS));
128
129 if (mask & HDI_BITMAP)
130 lpItem->hbm = phdi->hbm;
131
132 if (mask & HDI_FORMAT)
133 lpItem->fmt = phdi->fmt;
134
135 if (mask & HDI_LPARAM)
136 lpItem->lParam = phdi->lParam;
137
138 if (mask & HDI_WIDTH)
139 lpItem->cxy = phdi->cxy;
140
141 if (mask & HDI_IMAGE)
142 {
143 lpItem->iImage = phdi->iImage;
144 if (phdi->iImage == I_IMAGECALLBACK)
145 lpItem->callbackMask |= HDI_IMAGE;
146 else
147 lpItem->callbackMask &= ~HDI_IMAGE;
148 }
149
150 if (mask & HDI_TEXT)
151 {
152 if (lpItem->pszText)
153 {
154 Free(lpItem->pszText);
155 lpItem->pszText = NULL;
156 }
157
158 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
159 {
160 LPWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString);
161 if (fUnicode)
162 Str_SetPtrW(&lpItem->pszText, pszText);
163 else
164 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)pszText);
165 lpItem->callbackMask &= ~HDI_TEXT;
166 }
167 else
168 {
169 lpItem->pszText = NULL;
170 lpItem->callbackMask |= HDI_TEXT;
171 }
172 }
173 }
174
175 inline static LRESULT
176 HEADER_IndexToOrder (HWND hwnd, INT iItem)
177 {
178 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
179 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
180 return lpItem->iOrder;
181 }
182
183
184 static INT
185 HEADER_OrderToIndex(HWND hwnd, WPARAM wParam)
186 {
187 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
188 INT iorder = (INT)wParam;
189
190 if ((iorder <0) || iorder >= infoPtr->uNumItem)
191 return iorder;
192 return infoPtr->order[iorder];
193 }
194
195 static void
196 HEADER_ChangeItemOrder(HEADER_INFO *infoPtr, INT iItem, INT iNewOrder)
197 {
198 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
199 INT i, nMin, nMax;
200
201 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder);
202 if (lpItem->iOrder < iNewOrder)
203 {
204 memmove(&infoPtr->order[lpItem->iOrder],
205 &infoPtr->order[lpItem->iOrder + 1],
206 (iNewOrder - lpItem->iOrder) * sizeof(INT));
207 }
208 if (iNewOrder < lpItem->iOrder)
209 {
210 memmove(&infoPtr->order[iNewOrder + 1],
211 &infoPtr->order[iNewOrder],
212 (lpItem->iOrder - iNewOrder) * sizeof(INT));
213 }
214 infoPtr->order[iNewOrder] = iItem;
215 nMin = min(lpItem->iOrder, iNewOrder);
216 nMax = max(lpItem->iOrder, iNewOrder);
217 for (i = nMin; i <= nMax; i++)
218 infoPtr->items[infoPtr->order[i]].iOrder = i;
219 }
220
221 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
222 static INT
223 HEADER_NextItem(HWND hwnd, INT iItem)
224 {
225 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)+1);
226 }
227
228 static INT
229 HEADER_PrevItem(HWND hwnd, INT iItem)
230 {
231 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)-1);
232 }
233
234 static void
235 HEADER_SetItemBounds (HWND hwnd)
236 {
237 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
238 HEADER_ITEM *phdi;
239 RECT rect;
240 unsigned int i;
241 int x;
242
243 infoPtr->bRectsValid = TRUE;
244
245 if (infoPtr->uNumItem == 0)
246 return;
247
248 GetClientRect (hwnd, &rect);
249
250 x = rect.left;
251 for (i = 0; i < infoPtr->uNumItem; i++) {
252 phdi = &infoPtr->items[HEADER_OrderToIndex(hwnd,i)];
253 phdi->rect.top = rect.top;
254 phdi->rect.bottom = rect.bottom;
255 phdi->rect.left = x;
256 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0);
257 x = phdi->rect.right;
258 }
259 }
260
261 static LRESULT
262 HEADER_Size (HWND hwnd, WPARAM wParam)
263 {
264 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
265
266 infoPtr->bRectsValid = FALSE;
267
268 return 0;
269 }
270
271 static void HEADER_GetHotDividerRect(HWND hwnd, HEADER_INFO *infoPtr, RECT *r)
272 {
273 INT iDivider = infoPtr->iHotDivider;
274 if (infoPtr->uNumItem > 0)
275 {
276 HEADER_ITEM *lpItem;
277
278 if (iDivider < infoPtr->uNumItem)
279 {
280 lpItem = &infoPtr->items[iDivider];
281 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
282 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
283 }
284 else
285 {
286 lpItem = &infoPtr->items[HEADER_OrderToIndex(hwnd, infoPtr->uNumItem-1)];
287 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
288 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
289 }
290 r->top = lpItem->rect.top;
291 r->bottom = lpItem->rect.bottom;
292 }
293 else
294 {
295 RECT clientRect;
296 GetClientRect(hwnd, &clientRect);
297 *r = clientRect;
298 r->right = r->left + HOT_DIVIDER_WIDTH/2;
299 }
300 }
301
302
303 static INT
304 HEADER_DrawItem (HWND hwnd, HDC hdc, INT iItem, BOOL bHotTrack, LRESULT lCDFlags)
305 {
306 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
307 HEADER_ITEM *phdi = &infoPtr->items[iItem];
308 RECT r;
309 INT oldBkMode;
310 HTHEME theme = GetWindowTheme (hwnd);
311 NMCUSTOMDRAW nmcd;
312
313 TRACE("DrawItem(iItem %d bHotTrack %d unicode flag %d)\n", iItem, bHotTrack, (infoPtr->nNotifyFormat == NFR_UNICODE));
314
315 r = phdi->rect;
316 if (r.right - r.left == 0)
317 return phdi->rect.right;
318
319 /* Set the colors before sending NM_CUSTOMDRAW so that it can change them */
320 SetTextColor(hdc, (bHotTrack && !theme) ? COLOR_HIGHLIGHT : COLOR_BTNTEXT);
321 SetBkColor(hdc, GetSysColor(COLOR_3DFACE));
322
323 if (lCDFlags & CDRF_NOTIFYITEMDRAW && !(phdi->fmt & HDF_OWNERDRAW))
324 {
325 LRESULT lCDItemFlags;
326
327 nmcd.dwDrawStage = CDDS_PREPAINT | CDDS_ITEM;
328 nmcd.hdc = hdc;
329 nmcd.dwItemSpec = iItem;
330 nmcd.rc = r;
331 nmcd.uItemState = phdi->bDown ? CDIS_SELECTED : 0;
332 nmcd.lItemlParam = phdi->lParam;
333
334 lCDItemFlags = HEADER_SendNotify(hwnd, NM_CUSTOMDRAW, (NMHDR *)&nmcd);
335 if (lCDItemFlags & CDRF_SKIPDEFAULT)
336 return phdi->rect.right;
337 }
338
339 if (theme != NULL) {
340 int state = (phdi->bDown) ? HIS_PRESSED :
341 (bHotTrack ? HIS_HOT : HIS_NORMAL);
342 DrawThemeBackground (theme, hdc, HP_HEADERITEM, state,
343 &r, NULL);
344 GetThemeBackgroundContentRect (theme, hdc, HP_HEADERITEM, state,
345 &r, &r);
346 }
347 else {
348 HBRUSH hbr;
349
350 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) {
351 if (phdi->bDown) {
352 DrawEdge (hdc, &r, BDR_RAISEDOUTER,
353 BF_RECT | BF_FLAT | BF_MIDDLE | BF_ADJUST);
354 }
355 else
356 DrawEdge (hdc, &r, EDGE_RAISED,
357 BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST);
358 }
359 else
360 DrawEdge (hdc, &r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST);
361
362 hbr = CreateSolidBrush(GetBkColor(hdc));
363 FillRect(hdc, &r, hbr);
364 DeleteObject(hbr);
365 }
366 if (phdi->bDown) {
367 r.left += 2;
368 r.top += 2;
369 }
370
371 if (phdi->fmt & HDF_OWNERDRAW) {
372 DRAWITEMSTRUCT dis;
373
374 dis.CtlType = ODT_HEADER;
375 dis.CtlID = GetWindowLongPtrW (hwnd, GWLP_ID);
376 dis.itemID = iItem;
377 dis.itemAction = ODA_DRAWENTIRE;
378 dis.itemState = phdi->bDown ? ODS_SELECTED : 0;
379 dis.hwndItem = hwnd;
380 dis.hDC = hdc;
381 dis.rcItem = phdi->rect;
382 dis.itemData = phdi->lParam;
383 oldBkMode = SetBkMode(hdc, TRANSPARENT);
384 SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM,
385 (WPARAM)dis.CtlID, (LPARAM)&dis);
386 if (oldBkMode != TRANSPARENT)
387 SetBkMode(hdc, oldBkMode);
388 }
389 else {
390 UINT rw, rh, /* width and height of r */
391 *x = NULL, *w = NULL; /* x and width of the pic (bmp or img) which is part of cnt */
392 /* cnt,txt,img,bmp */
393 UINT cx, tx, ix, bx,
394 cw, tw, iw, bw;
395 BITMAP bmp;
396
397 HEADER_PrepareCallbackItems(hwnd, iItem, HDI_TEXT|HDI_IMAGE);
398 cw = tw = iw = bw = 0;
399 rw = r.right - r.left;
400 rh = r.bottom - r.top;
401
402 if (phdi->fmt & HDF_STRING) {
403 RECT textRect;
404
405 SetRectEmpty(&textRect);
406 DrawTextW (hdc, phdi->pszText, -1,
407 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT);
408 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin;
409 }
410
411 if ((phdi->fmt & HDF_IMAGE) && (infoPtr->himl)) {
412 iw = infoPtr->himl->cx + 2 * infoPtr->iMargin;
413 x = &ix;
414 w = &iw;
415 }
416
417 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) {
418 GetObjectW (phdi->hbm, sizeof(BITMAP), (LPVOID)&bmp);
419 bw = bmp.bmWidth + 2 * infoPtr->iMargin;
420 if (!iw) {
421 x = &bx;
422 w = &bw;
423 }
424 }
425
426 if (bw || iw)
427 cw += *w;
428
429 /* align cx using the unclipped cw */
430 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT)
431 cx = r.left;
432 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER)
433 cx = r.left + rw / 2 - cw / 2;
434 else /* HDF_RIGHT */
435 cx = r.right - cw;
436
437 /* clip cx & cw */
438 if (cx < r.left)
439 cx = r.left;
440 if (cx + cw > r.right)
441 cw = r.right - cx;
442
443 tx = cx + infoPtr->iMargin;
444 /* since cw might have changed we have to recalculate tw */
445 tw = cw - infoPtr->iMargin * 2;
446
447 if (iw || bw) {
448 tw -= *w;
449 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) {
450 /* put pic behind text */
451 *x = cx + tw + infoPtr->iMargin * 3;
452 } else {
453 *x = cx + infoPtr->iMargin;
454 /* move text behind pic */
455 tx += *w;
456 }
457 }
458
459 if (iw && bw) {
460 /* since we're done with the layout we can
461 now calculate the position of bmp which
462 has no influence on alignment and layout
463 because of img */
464 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT)
465 bx = cx - bw + infoPtr->iMargin;
466 else
467 bx = cx + cw + infoPtr->iMargin;
468 }
469
470 if (iw || bw) {
471 HDC hClipDC = GetDC(hwnd);
472 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
473 SelectClipRgn(hClipDC, hClipRgn);
474
475 if (bw) {
476 HDC hdcBitmap = CreateCompatibleDC (hClipDC);
477 SelectObject (hdcBitmap, phdi->hbm);
478 BitBlt (hClipDC, bx, r.top + ((INT)rh - bmp.bmHeight) / 2,
479 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
480 DeleteDC (hdcBitmap);
481 }
482
483 if (iw) {
484 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC,
485 ix, r.top + ((INT)rh - infoPtr->himl->cy) / 2,
486 infoPtr->himl->cx, infoPtr->himl->cy, CLR_DEFAULT, CLR_DEFAULT, 0);
487 }
488
489 DeleteObject(hClipRgn);
490 ReleaseDC(hwnd, hClipDC);
491 }
492
493 if (((phdi->fmt & HDF_STRING)
494 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP|
495 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */
496 && (phdi->pszText)) {
497 oldBkMode = SetBkMode(hdc, TRANSPARENT);
498 r.left = tx;
499 r.right = tx + tw;
500 DrawTextW (hdc, phdi->pszText, -1,
501 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE);
502 if (oldBkMode != TRANSPARENT)
503 SetBkMode(hdc, oldBkMode);
504 }
505 HEADER_FreeCallbackItems(phdi);
506 }/*Ownerdrawn*/
507
508 return phdi->rect.right;
509 }
510
511 static void
512 HEADER_DrawHotDivider(HWND hwnd, HDC hdc)
513 {
514 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
515 HBRUSH brush;
516 RECT r;
517
518 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
519 brush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
520 FillRect(hdc, &r, brush);
521 DeleteObject(brush);
522 }
523
524 static void
525 HEADER_Refresh (HWND hwnd, HDC hdc)
526 {
527 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
528 HFONT hFont, hOldFont;
529 RECT rect, rcRest;
530 HBRUSH hbrBk;
531 UINT i;
532 INT x;
533 LRESULT lCDFlags;
534 HTHEME theme = GetWindowTheme (hwnd);
535
536 if (!infoPtr->bRectsValid)
537 HEADER_SetItemBounds(hwnd);
538
539 /* get rect for the bar, adjusted for the border */
540 GetClientRect (hwnd, &rect);
541 lCDFlags = HEADER_SendCtrlCustomDraw(hwnd, CDDS_PREPAINT, hdc, &rect);
542
543 if (infoPtr->bDragging)
544 ImageList_DragShowNolock(FALSE);
545
546 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
547 hOldFont = SelectObject (hdc, hFont);
548
549 /* draw Background */
550 if (infoPtr->uNumItem == 0 && theme == NULL) {
551 hbrBk = GetSysColorBrush(COLOR_3DFACE);
552 FillRect(hdc, &rect, hbrBk);
553 }
554
555 x = rect.left;
556 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) {
557 int idx = HEADER_OrderToIndex(hwnd,i);
558 if (RectVisible(hdc, &infoPtr->items[idx].rect))
559 HEADER_DrawItem(hwnd, hdc, idx, infoPtr->iHotItem == idx, lCDFlags);
560 x = infoPtr->items[idx].rect.right;
561 }
562
563 rcRest = rect;
564 rcRest.left = x;
565 if ((x <= rect.right) && RectVisible(hdc, &rcRest) && (infoPtr->uNumItem > 0)) {
566 if (theme != NULL) {
567 DrawThemeBackground(theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rcRest, NULL);
568 }
569 else {
570 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS)
571 DrawEdge (hdc, &rcRest, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE);
572 else
573 DrawEdge (hdc, &rcRest, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
574 }
575 }
576
577 if (infoPtr->iHotDivider != -1)
578 HEADER_DrawHotDivider(hwnd, hdc);
579
580 if (infoPtr->bDragging)
581 ImageList_DragShowNolock(TRUE);
582 SelectObject (hdc, hOldFont);
583
584 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
585 HEADER_SendCtrlCustomDraw(hwnd, CDDS_POSTPAINT, hdc, &rect);
586 }
587
588
589 static void
590 HEADER_RefreshItem (HWND hwnd, HDC hdc, INT iItem)
591 {
592 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
593
594 if (!infoPtr->bRectsValid)
595 HEADER_SetItemBounds(hwnd);
596
597 InvalidateRect(hwnd, &infoPtr->items[iItem].rect, FALSE);
598 }
599
600
601 static void
602 HEADER_InternalHitTest (HWND hwnd, LPPOINT lpPt, UINT *pFlags, INT *pItem)
603 {
604 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
605 RECT rect, rcTest;
606 UINT iCount;
607 INT width;
608 BOOL bNoWidth;
609
610 GetClientRect (hwnd, &rect);
611
612 *pFlags = 0;
613 bNoWidth = FALSE;
614 if (PtInRect (&rect, *lpPt))
615 {
616 if (infoPtr->uNumItem == 0) {
617 *pFlags |= HHT_NOWHERE;
618 *pItem = 1;
619 TRACE("NOWHERE\n");
620 return;
621 }
622 else {
623 /* somewhere inside */
624 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) {
625 rect = infoPtr->items[iCount].rect;
626 width = rect.right - rect.left;
627 if (width == 0) {
628 bNoWidth = TRUE;
629 continue;
630 }
631 if (PtInRect (&rect, *lpPt)) {
632 if (width <= 2 * DIVIDER_WIDTH) {
633 *pFlags |= HHT_ONHEADER;
634 *pItem = iCount;
635 TRACE("ON HEADER %d\n", iCount);
636 return;
637 }
638 if (HEADER_IndexToOrder(hwnd, iCount) > 0) {
639 rcTest = rect;
640 rcTest.right = rcTest.left + DIVIDER_WIDTH;
641 if (PtInRect (&rcTest, *lpPt)) {
642 if (bNoWidth) {
643 *pFlags |= HHT_ONDIVOPEN;
644 *pItem = HEADER_PrevItem(hwnd, iCount);
645 TRACE("ON DIVOPEN %d\n", *pItem);
646 return;
647 }
648 else {
649 *pFlags |= HHT_ONDIVIDER;
650 *pItem = HEADER_PrevItem(hwnd, iCount);
651 TRACE("ON DIVIDER %d\n", *pItem);
652 return;
653 }
654 }
655 }
656 rcTest = rect;
657 rcTest.left = rcTest.right - DIVIDER_WIDTH;
658 if (PtInRect (&rcTest, *lpPt)) {
659 *pFlags |= HHT_ONDIVIDER;
660 *pItem = iCount;
661 TRACE("ON DIVIDER %d\n", *pItem);
662 return;
663 }
664
665 *pFlags |= HHT_ONHEADER;
666 *pItem = iCount;
667 TRACE("ON HEADER %d\n", iCount);
668 return;
669 }
670 }
671
672 /* check for last divider part (on nowhere) */
673 rect = infoPtr->items[infoPtr->uNumItem-1].rect;
674 rect.left = rect.right;
675 rect.right += DIVIDER_WIDTH;
676 if (PtInRect (&rect, *lpPt)) {
677 if (bNoWidth) {
678 *pFlags |= HHT_ONDIVOPEN;
679 *pItem = infoPtr->uNumItem - 1;
680 TRACE("ON DIVOPEN %d\n", *pItem);
681 return;
682 }
683 else {
684 *pFlags |= HHT_ONDIVIDER;
685 *pItem = infoPtr->uNumItem-1;
686 TRACE("ON DIVIDER %d\n", *pItem);
687 return;
688 }
689 }
690
691 *pFlags |= HHT_NOWHERE;
692 *pItem = 1;
693 TRACE("NOWHERE\n");
694 return;
695 }
696 }
697 else {
698 if (lpPt->x < rect.left) {
699 TRACE("TO LEFT\n");
700 *pFlags |= HHT_TOLEFT;
701 }
702 else if (lpPt->x > rect.right) {
703 TRACE("TO RIGHT\n");
704 *pFlags |= HHT_TORIGHT;
705 }
706
707 if (lpPt->y < rect.top) {
708 TRACE("ABOVE\n");
709 *pFlags |= HHT_ABOVE;
710 }
711 else if (lpPt->y > rect.bottom) {
712 TRACE("BELOW\n");
713 *pFlags |= HHT_BELOW;
714 }
715 }
716
717 *pItem = 1;
718 TRACE("flags=0x%X\n", *pFlags);
719 return;
720 }
721
722
723 static void
724 HEADER_DrawTrackLine (HWND hwnd, HDC hdc, INT x)
725 {
726 RECT rect;
727 HPEN hOldPen;
728 INT oldRop;
729
730 GetClientRect (hwnd, &rect);
731
732 hOldPen = SelectObject (hdc, GetStockObject (BLACK_PEN));
733 oldRop = SetROP2 (hdc, R2_XORPEN);
734 MoveToEx (hdc, x, rect.top, NULL);
735 LineTo (hdc, x, rect.bottom);
736 SetROP2 (hdc, oldRop);
737 SelectObject (hdc, hOldPen);
738 }
739
740 /***
741 * DESCRIPTION:
742 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify
743 *
744 * PARAMETER(S):
745 * [I] infoPtr : the header that wants to send the notify
746 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW
747 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW
748 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA
749 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after
750 * the HDITEM is no longer in use or NULL if none was needed
751 *
752 * NOTE: We depend on HDITEMA and HDITEMW having the same structure
753 */
754 static void HEADER_CopyHDItemForNotify(HEADER_INFO *infoPtr, HDITEMW *dest,
755 HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch)
756 {
757 *ppvScratch = NULL;
758 *dest = *src;
759
760 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */
761 {
762 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE)
763 {
764 dest->pszText = NULL;
765 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText);
766 *ppvScratch = dest->pszText;
767 }
768
769 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE)
770 {
771 dest->pszText = NULL;
772 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText);
773 *ppvScratch = dest->pszText;
774 }
775 }
776 }
777
778 static UINT HEADER_NotifyCodeWtoA(UINT code)
779 {
780 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/
781 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE)
782 return code + HDN_UNICODE_OFFSET;
783 else
784 return code;
785 }
786
787 static LRESULT
788 HEADER_SendNotify(HWND hwnd, UINT code, NMHDR *nmhdr)
789 {
790 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
791
792 nmhdr->hwndFrom = hwnd;
793 nmhdr->idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
794 nmhdr->code = code;
795
796 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
797 (WPARAM)nmhdr->idFrom, (LPARAM)nmhdr);
798 }
799
800 static BOOL
801 HEADER_SendSimpleNotify (HWND hwnd, UINT code)
802 {
803 NMHDR nmhdr;
804 return (BOOL)HEADER_SendNotify(hwnd, code, &nmhdr);
805 }
806
807 static LRESULT
808 HEADER_SendCtrlCustomDraw(HWND hwnd, DWORD dwDrawStage, HDC hdc, RECT *rect)
809 {
810 NMCUSTOMDRAW nm;
811 nm.dwDrawStage = dwDrawStage;
812 nm.hdc = hdc;
813 nm.rc = *rect;
814 nm.dwItemSpec = 0;
815 nm.uItemState = 0;
816 nm.lItemlParam = 0;
817
818 return HEADER_SendNotify(hwnd, NM_CUSTOMDRAW, (NMHDR *)&nm);
819 }
820
821 static BOOL
822 HEADER_SendNotifyWithHDItemT(HWND hwnd, UINT code, INT iItem, HDITEMW *lpItem)
823 {
824 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
825 NMHEADERW nmhdr;
826
827 if (infoPtr->nNotifyFormat != NFR_UNICODE)
828 code = HEADER_NotifyCodeWtoA(code);
829 nmhdr.iItem = iItem;
830 nmhdr.iButton = 0;
831 nmhdr.pitem = lpItem;
832
833 return (BOOL)HEADER_SendNotify(hwnd, code, (NMHDR *)&nmhdr);
834 }
835
836 static BOOL
837 HEADER_SendNotifyWithIntFieldT(HWND hwnd, UINT code, INT iItem, INT mask, INT iValue)
838 {
839 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
840 HDITEMW nmitem;
841
842 /* copying only the iValue should be ok but to make the code more robust we copy everything */
843 nmitem.cxy = infoPtr->items[iItem].cxy;
844 nmitem.hbm = infoPtr->items[iItem].hbm;
845 nmitem.pszText = NULL;
846 nmitem.cchTextMax = 0;
847 nmitem.fmt = infoPtr->items[iItem].fmt;
848 nmitem.lParam = infoPtr->items[iItem].lParam;
849 nmitem.iOrder = infoPtr->items[iItem].iOrder;
850 nmitem.iImage = infoPtr->items[iItem].iImage;
851
852 nmitem.mask = mask;
853 switch (mask)
854 {
855 case HDI_WIDTH:
856 nmitem.cxy = iValue;
857 break;
858 case HDI_ORDER:
859 nmitem.iOrder = iValue;
860 break;
861 default:
862 ERR("invalid mask value 0x%x\n", iValue);
863 }
864
865 return HEADER_SendNotifyWithHDItemT(hwnd, code, iItem, &nmitem);
866 }
867
868 /**
869 * Prepare callback items
870 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA
871 * (so we handle the two cases only doing a specific cast for pszText).
872 * Checks if any of the required field are callback. If there are sends a
873 * NMHDISPINFO notify to retrieve these items. The items are stored in the
874 * HEADER_ITEM pszText and iImage fields. They should be freed with
875 * HEADER_FreeCallbackItems.
876 *
877 * @param hwnd : hwnd header container handler
878 * @param iItem : the header item id
879 * @param reqMask : required fields. If any of them is callback this function will fetch it
880 *
881 * @return TRUE on success, else FALSE
882 */
883 static BOOL
884 HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask)
885 {
886 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
887 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
888 DWORD mask = reqMask & lpItem->callbackMask;
889 NMHDDISPINFOW dispInfo;
890 void *pvBuffer = NULL;
891
892 if (mask == 0)
893 return TRUE;
894 if (mask&HDI_TEXT && lpItem->pszText != NULL)
895 {
896 ERR("(): function called without a call to FreeCallbackItems\n");
897 Free(lpItem->pszText);
898 lpItem->pszText = NULL;
899 }
900
901 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW));
902 dispInfo.hdr.hwndFrom = hwnd;
903 dispInfo.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
904 if (infoPtr->nNotifyFormat == NFR_UNICODE)
905 {
906 dispInfo.hdr.code = HDN_GETDISPINFOW;
907 if (mask & HDI_TEXT)
908 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(WCHAR));
909 }
910 else
911 {
912 dispInfo.hdr.code = HDN_GETDISPINFOA;
913 if (mask & HDI_TEXT)
914 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(CHAR));
915 }
916 dispInfo.pszText = (LPWSTR)pvBuffer;
917 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0);
918 dispInfo.iItem = iItem;
919 dispInfo.mask = mask;
920 dispInfo.lParam = lpItem->lParam;
921
922 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A');
923 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
924 (WPARAM) dispInfo.hdr.idFrom,
925 (LPARAM) &dispInfo);
926
927 TRACE("SendMessage returns(mask:0x%x,str:%s,lParam:%p)\n",
928 dispInfo.mask,
929 (infoPtr->nNotifyFormat == NFR_UNICODE ? debugstr_w(dispInfo.pszText) : (LPSTR) dispInfo.pszText),
930 (void*) dispInfo.lParam);
931
932 if (mask & HDI_IMAGE)
933 lpItem->iImage = dispInfo.iImage;
934 if (mask & HDI_TEXT)
935 {
936 if (infoPtr->nNotifyFormat == NFR_UNICODE)
937 {
938 lpItem->pszText = (LPWSTR)pvBuffer;
939
940 /* the user might have used his own buffer */
941 if (dispInfo.pszText != lpItem->pszText)
942 Str_GetPtrW(dispInfo.pszText, lpItem->pszText, MAX_HEADER_TEXT_LEN);
943 }
944 else
945 {
946 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)dispInfo.pszText);
947 Free(pvBuffer);
948 }
949 }
950
951 if (dispInfo.mask & HDI_DI_SETITEM)
952 {
953 /* make the items permanent */
954 lpItem->callbackMask &= ~dispInfo.mask;
955 }
956
957 return TRUE;
958 }
959
960 /***
961 * DESCRIPTION:
962 * Free the items that might be allocated with HEADER_PrepareCallbackItems
963 *
964 * PARAMETER(S):
965 * [I] lpItem : the item to free the data
966 *
967 */
968 static void
969 HEADER_FreeCallbackItems(HEADER_ITEM *lpItem)
970 {
971 if (lpItem->callbackMask&HDI_TEXT && lpItem->pszText != NULL)
972 {
973 Free(lpItem->pszText);
974 lpItem->pszText = NULL;
975 }
976
977 if (lpItem->callbackMask&HDI_IMAGE)
978 lpItem->iImage = I_IMAGECALLBACK;
979 }
980
981 static LRESULT
982 HEADER_CreateDragImage (HWND hwnd, WPARAM wParam)
983 {
984 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
985 HEADER_ITEM *lpItem;
986 HIMAGELIST himl;
987 HBITMAP hMemory, hOldBitmap;
988 LRESULT lCDFlags;
989 RECT rc;
990 HDC hMemoryDC;
991 HDC hDeviceDC;
992 int height, width;
993
994 if (wParam < 0 || wParam >= infoPtr->uNumItem)
995 return FALSE;
996
997 if (!infoPtr->bRectsValid)
998 HEADER_SetItemBounds(hwnd);
999
1000 lpItem = &infoPtr->items[wParam];
1001 width = lpItem->rect.right - lpItem->rect.left;
1002 height = lpItem->rect.bottom - lpItem->rect.top;
1003
1004 hDeviceDC = GetDC(NULL);
1005 hMemoryDC = CreateCompatibleDC(hDeviceDC);
1006 hMemory = CreateCompatibleBitmap(hDeviceDC, width, height);
1007 ReleaseDC(NULL, hDeviceDC);
1008 hOldBitmap = SelectObject(hMemoryDC, hMemory);
1009 SetViewportOrgEx(hMemoryDC, -lpItem->rect.left, -lpItem->rect.top, NULL);
1010
1011 GetClientRect(hwnd, &rc);
1012 lCDFlags = HEADER_SendCtrlCustomDraw(hwnd, CDDS_PREPAINT, hMemoryDC, &rc);
1013 HEADER_DrawItem(hwnd, hMemoryDC, wParam, FALSE, lCDFlags);
1014 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
1015 HEADER_SendCtrlCustomDraw(hwnd, CDDS_POSTPAINT, hMemoryDC, &rc);
1016
1017 hMemory = SelectObject(hMemoryDC, hOldBitmap);
1018 DeleteDC(hMemoryDC);
1019
1020 if (hMemory == NULL) /* if anything failed */
1021 return FALSE;
1022
1023 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1);
1024 ImageList_Add(himl, hMemory, NULL);
1025 DeleteObject(hMemory);
1026 return (LRESULT)himl;
1027 }
1028
1029 static LRESULT
1030 HEADER_SetHotDivider(HWND hwnd, WPARAM wParam, LPARAM lParam)
1031 {
1032 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1033 INT iDivider;
1034 RECT r;
1035
1036 if (wParam)
1037 {
1038 POINT pt;
1039 UINT flags;
1040 pt.x = (INT)(SHORT)LOWORD(lParam);
1041 pt.y = 0;
1042 HEADER_InternalHitTest (hwnd, &pt, &flags, &iDivider);
1043
1044 if (flags & HHT_TOLEFT)
1045 iDivider = 0;
1046 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
1047 iDivider = infoPtr->uNumItem;
1048 else
1049 {
1050 HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
1051 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
1052 iDivider = HEADER_NextItem(hwnd, iDivider);
1053 }
1054 }
1055 else
1056 iDivider = (INT)lParam;
1057
1058 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
1059 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
1060 return iDivider;
1061
1062 if (iDivider != infoPtr->iHotDivider)
1063 {
1064 if (infoPtr->iHotDivider != -1)
1065 {
1066 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1067 InvalidateRect(hwnd, &r, FALSE);
1068 }
1069 infoPtr->iHotDivider = iDivider;
1070 if (iDivider != -1)
1071 {
1072 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1073 InvalidateRect(hwnd, &r, FALSE);
1074 }
1075 }
1076 return iDivider;
1077 }
1078
1079 static LRESULT
1080 HEADER_DeleteItem (HWND hwnd, WPARAM wParam)
1081 {
1082 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1083 INT iItem = (INT)wParam;
1084 INT iOrder;
1085 INT i;
1086
1087 TRACE("[iItem=%d]\n", iItem);
1088
1089 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1090 return FALSE;
1091
1092 for (i = 0; i < infoPtr->uNumItem; i++)
1093 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1094
1095 iOrder = infoPtr->items[iItem].iOrder;
1096 HEADER_DisposeItem(&infoPtr->items[iItem]);
1097
1098 infoPtr->uNumItem--;
1099 memmove(&infoPtr->items[iItem], &infoPtr->items[iItem + 1],
1100 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM));
1101 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1],
1102 (infoPtr->uNumItem - iOrder) * sizeof(INT));
1103 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1104 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1105
1106 /* Correct the orders */
1107 for (i = 0; i < infoPtr->uNumItem; i++)
1108 {
1109 if (infoPtr->order[i] > iItem)
1110 infoPtr->order[i]--;
1111 if (i >= iOrder)
1112 infoPtr->items[infoPtr->order[i]].iOrder = i;
1113 }
1114 for (i = 0; i < infoPtr->uNumItem; i++)
1115 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1116
1117 HEADER_SetItemBounds (hwnd);
1118 InvalidateRect(hwnd, NULL, FALSE);
1119
1120 return TRUE;
1121 }
1122
1123
1124 static LRESULT
1125 HEADER_GetImageList (HWND hwnd)
1126 {
1127 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1128
1129 return (LRESULT)infoPtr->himl;
1130 }
1131
1132
1133 static LRESULT
1134 HEADER_GetItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1135 {
1136 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1137 HEADER_ITEM *lpItem;
1138 UINT mask;
1139
1140 if (!phdi)
1141 return FALSE;
1142
1143 TRACE("[nItem=%d]\n", nItem);
1144
1145 mask = phdi->mask;
1146 if (mask == 0)
1147 return TRUE;
1148
1149 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1150 return FALSE;
1151
1152 if (mask & HDI_UNKNOWN_FIELDS)
1153 {
1154 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask);
1155 mask &= HDI_COMCTL32_4_0_FIELDS;
1156 }
1157
1158 lpItem = &infoPtr->items[nItem];
1159 HEADER_PrepareCallbackItems(hwnd, nItem, mask);
1160
1161 if (mask & HDI_BITMAP)
1162 phdi->hbm = lpItem->hbm;
1163
1164 if (mask & HDI_FORMAT)
1165 phdi->fmt = lpItem->fmt;
1166
1167 if (mask & HDI_WIDTH)
1168 phdi->cxy = lpItem->cxy;
1169
1170 if (mask & HDI_LPARAM)
1171 phdi->lParam = lpItem->lParam;
1172
1173 if (mask & HDI_IMAGE)
1174 phdi->iImage = lpItem->iImage;
1175
1176 if (mask & HDI_ORDER)
1177 phdi->iOrder = lpItem->iOrder;
1178
1179 if (mask & HDI_TEXT)
1180 {
1181 if (bUnicode)
1182 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax);
1183 else
1184 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax);
1185 }
1186
1187 HEADER_FreeCallbackItems(lpItem);
1188 return TRUE;
1189 }
1190
1191
1192 inline static LRESULT
1193 HEADER_GetItemCount (HWND hwnd)
1194 {
1195 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1196 return infoPtr->uNumItem;
1197 }
1198
1199
1200 static LRESULT
1201 HEADER_GetItemRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
1202 {
1203 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1204 INT iItem = (INT)wParam;
1205 LPRECT lpRect = (LPRECT)lParam;
1206
1207 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1208 return FALSE;
1209
1210 lpRect->left = infoPtr->items[iItem].rect.left;
1211 lpRect->right = infoPtr->items[iItem].rect.right;
1212 lpRect->top = infoPtr->items[iItem].rect.top;
1213 lpRect->bottom = infoPtr->items[iItem].rect.bottom;
1214
1215 return TRUE;
1216 }
1217
1218
1219 static LRESULT
1220 HEADER_GetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1221 {
1222 LPINT order = (LPINT) lParam;
1223 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1224
1225 if ((unsigned int)wParam <infoPtr->uNumItem)
1226 return FALSE;
1227
1228 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT));
1229 return TRUE;
1230 }
1231
1232 static LRESULT
1233 HEADER_SetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1234 {
1235 int i;
1236 LPINT order = (LPINT) lParam;
1237 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1238 HEADER_ITEM *lpItem;
1239
1240 if ((unsigned int)wParam <infoPtr->uNumItem)
1241 return FALSE;
1242 memcpy(infoPtr->order, order, infoPtr->uNumItem * sizeof(INT));
1243 for (i=0; i<(int)wParam; i++)
1244 {
1245 lpItem = &infoPtr->items[*order++];
1246 lpItem->iOrder=i;
1247 }
1248 infoPtr->bRectsValid=0;
1249 InvalidateRect(hwnd, NULL, FALSE);
1250 return TRUE;
1251 }
1252
1253 inline static LRESULT
1254 HEADER_GetUnicodeFormat (HWND hwnd)
1255 {
1256 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1257 return (infoPtr->nNotifyFormat == NFR_UNICODE);
1258 }
1259
1260
1261 static LRESULT
1262 HEADER_HitTest (HWND hwnd, WPARAM wParam, LPARAM lParam)
1263 {
1264 LPHDHITTESTINFO phti = (LPHDHITTESTINFO)lParam;
1265
1266 HEADER_InternalHitTest (hwnd, &phti->pt, &phti->flags, &phti->iItem);
1267
1268 if (phti->flags == HHT_NOWHERE)
1269 return -1;
1270 else
1271 return phti->iItem;
1272 }
1273
1274
1275 static LRESULT
1276 HEADER_InsertItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1277 {
1278 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1279 HEADER_ITEM *lpItem;
1280 INT iOrder;
1281 UINT i;
1282 UINT copyMask;
1283
1284 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0))
1285 return -1;
1286
1287 if (nItem > infoPtr->uNumItem)
1288 nItem = infoPtr->uNumItem;
1289
1290 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem;
1291 if (iOrder < 0)
1292 iOrder = 0;
1293 else if (infoPtr->uNumItem < iOrder)
1294 iOrder = infoPtr->uNumItem;
1295
1296 infoPtr->uNumItem++;
1297 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1298 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1299
1300 /* make space for the new item */
1301 memmove(&infoPtr->items[nItem + 1], &infoPtr->items[nItem],
1302 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM));
1303 memmove(&infoPtr->order[iOrder + 1], &infoPtr->order[iOrder],
1304 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT));
1305
1306 /* update the order array */
1307 infoPtr->order[iOrder] = nItem;
1308 for (i = 0; i < infoPtr->uNumItem; i++)
1309 {
1310 if (i != iOrder && infoPtr->order[i] >= nItem)
1311 infoPtr->order[i]++;
1312 infoPtr->items[infoPtr->order[i]].iOrder = i;
1313 }
1314
1315 lpItem = &infoPtr->items[nItem];
1316 ZeroMemory(lpItem, sizeof(HEADER_ITEM));
1317 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */
1318 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM;
1319 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode);
1320 lpItem->iOrder = iOrder;
1321
1322 /* set automatically some format bits */
1323 if (phdi->mask & HDI_TEXT)
1324 lpItem->fmt |= HDF_STRING;
1325 else
1326 lpItem->fmt &= ~HDF_STRING;
1327
1328 if (lpItem->hbm != NULL)
1329 lpItem->fmt |= HDF_BITMAP;
1330 else
1331 lpItem->fmt &= ~HDF_BITMAP;
1332
1333 if (phdi->mask & HDI_IMAGE)
1334 lpItem->fmt |= HDF_IMAGE;
1335
1336 HEADER_SetItemBounds (hwnd);
1337 InvalidateRect(hwnd, NULL, FALSE);
1338
1339 return nItem;
1340 }
1341
1342
1343 static LRESULT
1344 HEADER_Layout (HWND hwnd, WPARAM wParam, LPARAM lParam)
1345 {
1346 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1347 LPHDLAYOUT lpLayout = (LPHDLAYOUT)lParam;
1348
1349 lpLayout->pwpos->hwnd = hwnd;
1350 lpLayout->pwpos->hwndInsertAfter = 0;
1351 lpLayout->pwpos->x = lpLayout->prc->left;
1352 lpLayout->pwpos->y = lpLayout->prc->top;
1353 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left;
1354 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_HIDDEN)
1355 lpLayout->pwpos->cy = 0;
1356 else {
1357 lpLayout->pwpos->cy = infoPtr->nHeight;
1358 lpLayout->prc->top += infoPtr->nHeight;
1359 }
1360 lpLayout->pwpos->flags = SWP_NOZORDER;
1361
1362 TRACE("Layout x=%d y=%d cx=%d cy=%d\n",
1363 lpLayout->pwpos->x, lpLayout->pwpos->y,
1364 lpLayout->pwpos->cx, lpLayout->pwpos->cy);
1365
1366 infoPtr->bRectsValid = FALSE;
1367
1368 return TRUE;
1369 }
1370
1371
1372 static LRESULT
1373 HEADER_SetImageList (HWND hwnd, HIMAGELIST himl)
1374 {
1375 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1376 HIMAGELIST himlOld;
1377
1378 TRACE("(himl %p)\n", himl);
1379 himlOld = infoPtr->himl;
1380 infoPtr->himl = himl;
1381
1382 /* FIXME: Refresh needed??? */
1383
1384 return (LRESULT)himlOld;
1385 }
1386
1387
1388 static LRESULT
1389 HEADER_GetBitmapMargin(HWND hwnd)
1390 {
1391 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1392
1393 return infoPtr->iMargin;
1394 }
1395
1396 static LRESULT
1397 HEADER_SetBitmapMargin(HWND hwnd, WPARAM wParam)
1398 {
1399 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1400 INT oldMargin = infoPtr->iMargin;
1401
1402 infoPtr->iMargin = (INT)wParam;
1403
1404 return oldMargin;
1405 }
1406
1407 static LRESULT
1408 HEADER_SetItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1409 {
1410 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1411 HEADER_ITEM *lpItem;
1412 HDITEMW hdNotify;
1413 void *pvScratch;
1414
1415 if (phdi == NULL)
1416 return FALSE;
1417 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1418 return FALSE;
1419
1420 TRACE("[nItem=%d]\n", nItem);
1421
1422 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch);
1423 if (HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCHANGINGW, nItem, &hdNotify))
1424 {
1425 if (pvScratch) Free(pvScratch);
1426 return FALSE;
1427 }
1428
1429 lpItem = &infoPtr->items[nItem];
1430 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode);
1431
1432 if (phdi->mask & HDI_ORDER)
1433 if (phdi->iOrder >= 0 && phdi->iOrder < infoPtr->uNumItem)
1434 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder);
1435
1436 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCHANGEDW, nItem, &hdNotify);
1437
1438 HEADER_SetItemBounds (hwnd);
1439
1440 InvalidateRect(hwnd, NULL, FALSE);
1441
1442 if (pvScratch != NULL)
1443 Free(pvScratch);
1444 return TRUE;
1445 }
1446
1447 inline static LRESULT
1448 HEADER_SetUnicodeFormat (HWND hwnd, WPARAM wParam)
1449 {
1450 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1451 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE);
1452
1453 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI);
1454
1455 return bTemp;
1456 }
1457
1458
1459 static LRESULT
1460 HEADER_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
1461 {
1462 HEADER_INFO *infoPtr;
1463 TEXTMETRICW tm;
1464 HFONT hOldFont;
1465 HDC hdc;
1466
1467 infoPtr = (HEADER_INFO *)Alloc (sizeof(HEADER_INFO));
1468 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1469
1470 infoPtr->hwndNotify = ((LPCREATESTRUCTA)lParam)->hwndParent;
1471 infoPtr->uNumItem = 0;
1472 infoPtr->hFont = 0;
1473 infoPtr->items = 0;
1474 infoPtr->order = 0;
1475 infoPtr->bRectsValid = FALSE;
1476 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1477 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER));
1478 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN));
1479 infoPtr->bPressed = FALSE;
1480 infoPtr->bTracking = FALSE;
1481 infoPtr->iMoveItem = 0;
1482 infoPtr->himl = 0;
1483 infoPtr->iHotItem = -1;
1484 infoPtr->iHotDivider = -1;
1485 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
1486 infoPtr->nNotifyFormat =
1487 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
1488
1489 hdc = GetDC (0);
1490 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
1491 GetTextMetricsW (hdc, &tm);
1492 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1493 SelectObject (hdc, hOldFont);
1494 ReleaseDC (0, hdc);
1495
1496 OpenThemeData(hwnd, themeClass);
1497
1498 return 0;
1499 }
1500
1501
1502 static LRESULT
1503 HEADER_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1504 {
1505 HTHEME theme = GetWindowTheme(hwnd);
1506 CloseThemeData(theme);
1507 return 0;
1508 }
1509
1510 static LRESULT
1511 HEADER_NCDestroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1512 {
1513 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1514 HEADER_ITEM *lpItem;
1515 INT nItem;
1516
1517 if (infoPtr->items) {
1518 lpItem = infoPtr->items;
1519 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) {
1520 HEADER_DisposeItem(lpItem);
1521 }
1522 Free (infoPtr->items);
1523 }
1524
1525 if (infoPtr->order)
1526 Free(infoPtr->order);
1527
1528 if (infoPtr->himl)
1529 ImageList_Destroy (infoPtr->himl);
1530
1531 SetWindowLongPtrW (hwnd, 0, 0);
1532 Free (infoPtr);
1533
1534 return 0;
1535 }
1536
1537
1538 static inline LRESULT
1539 HEADER_GetFont (HWND hwnd)
1540 {
1541 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1542
1543 return (LRESULT)infoPtr->hFont;
1544 }
1545
1546
1547 static BOOL
1548 HEADER_IsDragDistance(HEADER_INFO *infoPtr, POINT *pt)
1549 {
1550 /* Windows allows for a mouse movement before starting the drag. We use the
1551 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
1552 */
1553 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
1554 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
1555 }
1556
1557 static LRESULT
1558 HEADER_LButtonDblClk (HWND hwnd, WPARAM wParam, LPARAM lParam)
1559 {
1560 POINT pt;
1561 UINT flags;
1562 INT nItem;
1563
1564 pt.x = (short)LOWORD(lParam);
1565 pt.y = (short)HIWORD(lParam);
1566 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1567
1568 if ((GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) && (flags == HHT_ONHEADER))
1569 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMDBLCLICKW, nItem, NULL);
1570 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN))
1571 HEADER_SendNotifyWithHDItemT(hwnd, HDN_DIVIDERDBLCLICKW, nItem, NULL);
1572
1573 return 0;
1574 }
1575
1576
1577 static LRESULT
1578 HEADER_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
1579 {
1580 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1581 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1582 POINT pt;
1583 UINT flags;
1584 INT nItem;
1585 HDC hdc;
1586
1587 pt.x = (short)LOWORD(lParam);
1588 pt.y = (short)HIWORD(lParam);
1589 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1590
1591 if ((dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) {
1592 SetCapture (hwnd);
1593 infoPtr->bCaptured = TRUE;
1594 infoPtr->bPressed = TRUE;
1595 infoPtr->bDragging = FALSE;
1596 infoPtr->iMoveItem = nItem;
1597 infoPtr->ptLButtonDown = pt;
1598
1599 infoPtr->items[nItem].bDown = TRUE;
1600
1601 /* Send WM_CUSTOMDRAW */
1602 hdc = GetDC (hwnd);
1603 HEADER_RefreshItem (hwnd, hdc, nItem);
1604 ReleaseDC (hwnd, hdc);
1605
1606 TRACE("Pressed item %d!\n", nItem);
1607 }
1608 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) {
1609 INT iCurrWidth = infoPtr->items[nItem].cxy;
1610 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_BEGINTRACKW, nItem, HDI_WIDTH, iCurrWidth))
1611 {
1612 SetCapture (hwnd);
1613 infoPtr->bCaptured = TRUE;
1614 infoPtr->bTracking = TRUE;
1615 infoPtr->iMoveItem = nItem;
1616 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x;
1617
1618 if (!(dwStyle & HDS_FULLDRAG)) {
1619 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right;
1620 hdc = GetDC (hwnd);
1621 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1622 ReleaseDC (hwnd, hdc);
1623 }
1624
1625 TRACE("Begin tracking item %d!\n", nItem);
1626 }
1627 }
1628
1629 return 0;
1630 }
1631
1632
1633 static LRESULT
1634 HEADER_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1635 {
1636 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1637 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1638 POINT pt;
1639 UINT flags;
1640 INT nItem;
1641 HDC hdc;
1642
1643 pt.x = (INT)(SHORT)LOWORD(lParam);
1644 pt.y = (INT)(SHORT)HIWORD(lParam);
1645 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1646
1647 if (infoPtr->bPressed) {
1648 if (infoPtr->bDragging)
1649 {
1650 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1651 INT iNewOrder;
1652
1653 ImageList_DragShowNolock(FALSE);
1654 ImageList_EndDrag();
1655 lpItem->bDown=FALSE;
1656
1657 if (infoPtr->iHotDivider == -1)
1658 iNewOrder = -1;
1659 else if (infoPtr->iHotDivider == infoPtr->uNumItem)
1660 iNewOrder = infoPtr->uNumItem-1;
1661 else
1662 {
1663 iNewOrder = HEADER_IndexToOrder(hwnd, infoPtr->iHotDivider);
1664 if (iNewOrder > lpItem->iOrder)
1665 iNewOrder--;
1666 }
1667
1668 if (iNewOrder != -1 &&
1669 !HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, iNewOrder))
1670 {
1671 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder);
1672 infoPtr->bRectsValid = FALSE;
1673 InvalidateRect(hwnd, NULL, FALSE);
1674 }
1675 else
1676 InvalidateRect(hwnd, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
1677
1678 HEADER_SetHotDivider(hwnd, FALSE, -1);
1679 }
1680 else if (!(dwStyle&HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
1681 {
1682 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1683 hdc = GetDC (hwnd);
1684 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1685 ReleaseDC (hwnd, hdc);
1686
1687 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCLICKW, infoPtr->iMoveItem, NULL);
1688 }
1689
1690 TRACE("Released item %d!\n", infoPtr->iMoveItem);
1691 infoPtr->bPressed = FALSE;
1692 }
1693 else if (infoPtr->bTracking) {
1694 INT iNewWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
1695 if (iNewWidth < 0)
1696 iNewWidth = 0;
1697 TRACE("End tracking item %d!\n", infoPtr->iMoveItem);
1698 infoPtr->bTracking = FALSE;
1699
1700 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1701
1702 if (!(dwStyle & HDS_FULLDRAG)) {
1703 hdc = GetDC (hwnd);
1704 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1705 ReleaseDC (hwnd, hdc);
1706 }
1707
1708 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth))
1709 {
1710 infoPtr->items[infoPtr->iMoveItem].cxy = iNewWidth;
1711 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1712 }
1713
1714 HEADER_SetItemBounds (hwnd);
1715 InvalidateRect(hwnd, NULL, TRUE);
1716 }
1717
1718 if (infoPtr->bCaptured) {
1719 infoPtr->bCaptured = FALSE;
1720 ReleaseCapture ();
1721 HEADER_SendSimpleNotify (hwnd, NM_RELEASEDCAPTURE);
1722 }
1723
1724 return 0;
1725 }
1726
1727
1728 static LRESULT
1729 HEADER_NotifyFormat (HWND hwnd, WPARAM wParam, LPARAM lParam)
1730 {
1731 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1732
1733 switch (lParam)
1734 {
1735 case NF_QUERY:
1736 return infoPtr->nNotifyFormat;
1737
1738 case NF_REQUERY:
1739 infoPtr->nNotifyFormat =
1740 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT,
1741 (WPARAM)hwnd, (LPARAM)NF_QUERY);
1742 return infoPtr->nNotifyFormat;
1743 }
1744
1745 return 0;
1746 }
1747
1748 static LRESULT
1749 HEADER_MouseLeave (HWND hwnd, WPARAM wParam, LPARAM lParam)
1750 {
1751 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1752 /* Reset hot-tracked item when mouse leaves control. */
1753 INT oldHotItem = infoPtr->iHotItem;
1754 HDC hdc = GetDC (hwnd);
1755
1756 infoPtr->iHotItem = -1;
1757 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1758 ReleaseDC (hwnd, hdc);
1759
1760 return 0;
1761 }
1762
1763
1764 static LRESULT
1765 HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
1766 {
1767 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1768 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1769 POINT pt;
1770 UINT flags;
1771 INT nItem, nWidth;
1772 HDC hdc;
1773 /* With theming, hottracking is always enabled */
1774 BOOL hotTrackEnabled =
1775 ((dwStyle & HDS_BUTTONS) && (dwStyle & HDS_HOTTRACK))
1776 || (GetWindowTheme (hwnd) != NULL);
1777 INT oldHotItem = infoPtr->iHotItem;
1778
1779 pt.x = (INT)(SHORT)LOWORD(lParam);
1780 pt.y = (INT)(SHORT)HIWORD(lParam);
1781 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1782
1783 if (hotTrackEnabled) {
1784 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN))
1785 infoPtr->iHotItem = nItem;
1786 else
1787 infoPtr->iHotItem = -1;
1788 }
1789
1790 if (infoPtr->bCaptured) {
1791 /* check if we should drag the header */
1792 if (infoPtr->bPressed && !infoPtr->bDragging && dwStyle&HDS_DRAGDROP
1793 && HEADER_IsDragDistance(infoPtr, &pt))
1794 {
1795 if (!HEADER_SendNotifyWithHDItemT(hwnd, HDN_BEGINDRAG, infoPtr->iMoveItem, NULL))
1796 {
1797 HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(hwnd, infoPtr->iMoveItem);
1798 if (hDragItem != NULL)
1799 {
1800 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1801 TRACE("Starting item drag\n");
1802 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
1803 ImageList_DragShowNolock(TRUE);
1804 ImageList_Destroy(hDragItem);
1805 infoPtr->bDragging = TRUE;
1806 }
1807 }
1808 }
1809
1810 if (infoPtr->bDragging)
1811 {
1812 POINT drag;
1813 drag.x = pt.x;
1814 drag.y = 0;
1815 ClientToScreen(hwnd, &drag);
1816 ImageList_DragMove(drag.x, drag.y);
1817 HEADER_SetHotDivider(hwnd, TRUE, lParam);
1818 }
1819
1820 if (infoPtr->bPressed && !infoPtr->bDragging) {
1821 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
1822 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
1823 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
1824 else
1825 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1826 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) {
1827 hdc = GetDC (hwnd);
1828 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1829 ReleaseDC (hwnd, hdc);
1830 }
1831
1832 TRACE("Moving pressed item %d!\n", infoPtr->iMoveItem);
1833 }
1834 else if (infoPtr->bTracking) {
1835 if (dwStyle & HDS_FULLDRAG) {
1836 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1837 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
1838 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, nWidth))
1839 {
1840 INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
1841 RECT rcClient;
1842 RECT rcScroll;
1843
1844 if (nWidth < 0) nWidth = 0;
1845 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1846 HEADER_SetItemBounds(hwnd);
1847
1848 GetClientRect(hwnd, &rcClient);
1849 rcScroll = rcClient;
1850 rcScroll.left = lpItem->rect.left + nOldWidth;
1851 ScrollWindowEx(hwnd, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
1852 InvalidateRect(hwnd, &lpItem->rect, FALSE);
1853 UpdateWindow(hwnd);
1854
1855 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, nWidth);
1856 }
1857 }
1858 else {
1859 INT iTrackWidth;
1860 hdc = GetDC (hwnd);
1861 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1862 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset;
1863 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left)
1864 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left;
1865 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1866 ReleaseDC (hwnd, hdc);
1867 iTrackWidth = infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left;
1868 /* FIXME: should stop tracking if HDN_TRACK returns TRUE */
1869 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, iTrackWidth);
1870 }
1871
1872 TRACE("Tracking item %d!\n", infoPtr->iMoveItem);
1873 }
1874 }
1875
1876 if (hotTrackEnabled) {
1877 TRACKMOUSEEVENT tme;
1878 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
1879 hdc = GetDC (hwnd);
1880 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1881 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (hwnd, hdc, infoPtr->iHotItem);
1882 ReleaseDC (hwnd, hdc);
1883 }
1884 tme.cbSize = sizeof( tme );
1885 tme.dwFlags = TME_LEAVE;
1886 tme.hwndTrack = hwnd;
1887 TrackMouseEvent( &tme );
1888 }
1889
1890 return 0;
1891 }
1892
1893
1894 static LRESULT
1895 HEADER_Paint (HWND hwnd, WPARAM wParam)
1896 {
1897 HDC hdc;
1898 PAINTSTRUCT ps;
1899
1900 hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
1901 HEADER_Refresh (hwnd, hdc);
1902 if(!wParam)
1903 EndPaint (hwnd, &ps);
1904 return 0;
1905 }
1906
1907
1908 static LRESULT
1909 HEADER_RButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1910 {
1911 BOOL bRet;
1912 POINT pt;
1913
1914 pt.x = (short)LOWORD(lParam);
1915 pt.y = (short)HIWORD(lParam);
1916
1917 /* Send a Notify message */
1918 bRet = HEADER_SendSimpleNotify (hwnd, NM_RCLICK);
1919
1920 /* Change to screen coordinate for WM_CONTEXTMENU */
1921 ClientToScreen(hwnd, &pt);
1922
1923 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
1924 SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM) hwnd, MAKELPARAM(pt.x, pt.y));
1925
1926 return bRet;
1927 }
1928
1929
1930 static LRESULT
1931 HEADER_SetCursor (HWND hwnd, WPARAM wParam, LPARAM lParam)
1932 {
1933 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1934 POINT pt;
1935 UINT flags;
1936 INT nItem;
1937
1938 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam));
1939
1940 GetCursorPos (&pt);
1941 ScreenToClient (hwnd, &pt);
1942
1943 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1944
1945 if (flags == HHT_ONDIVIDER)
1946 SetCursor (infoPtr->hcurDivider);
1947 else if (flags == HHT_ONDIVOPEN)
1948 SetCursor (infoPtr->hcurDivopen);
1949 else
1950 SetCursor (infoPtr->hcurArrow);
1951
1952 return 0;
1953 }
1954
1955
1956 static LRESULT
1957 HEADER_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
1958 {
1959 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1960 TEXTMETRICW tm;
1961 HFONT hFont, hOldFont;
1962 HDC hdc;
1963
1964 infoPtr->hFont = (HFONT)wParam;
1965
1966 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
1967
1968 hdc = GetDC (0);
1969 hOldFont = SelectObject (hdc, hFont);
1970 GetTextMetricsW (hdc, &tm);
1971 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1972 SelectObject (hdc, hOldFont);
1973 ReleaseDC (0, hdc);
1974
1975 infoPtr->bRectsValid = FALSE;
1976
1977 if (lParam) {
1978 InvalidateRect(hwnd, NULL, FALSE);
1979 }
1980
1981 return 0;
1982 }
1983
1984 static LRESULT HEADER_SetRedraw(HWND hwnd, WPARAM wParam, LPARAM lParam)
1985 {
1986 /* ignoring the InvalidateRect calls is handled by user32. But some apps expect
1987 * that we invalidate the header and this has to be done manually */
1988 LRESULT ret;
1989
1990 ret = DefWindowProcW(hwnd, WM_SETREDRAW, wParam, lParam);
1991 if (wParam)
1992 InvalidateRect(hwnd, NULL, TRUE);
1993 return ret;
1994 }
1995
1996 /* Update the theme handle after a theme change */
1997 static LRESULT HEADER_ThemeChanged(HWND hwnd)
1998 {
1999 HTHEME theme = GetWindowTheme(hwnd);
2000 CloseThemeData(theme);
2001 OpenThemeData(hwnd, themeClass);
2002 InvalidateRect(hwnd, NULL, FALSE);
2003 return 0;
2004 }
2005
2006
2007 static LRESULT WINAPI
2008 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
2009 {
2010 TRACE("hwnd=%p msg=%x wparam=%x lParam=%lx\n", hwnd, msg, wParam, lParam);
2011 if (!HEADER_GetInfoPtr (hwnd) && (msg != WM_CREATE))
2012 return DefWindowProcW (hwnd, msg, wParam, lParam);
2013 switch (msg) {
2014 /* case HDM_CLEARFILTER: */
2015
2016 case HDM_CREATEDRAGIMAGE:
2017 return HEADER_CreateDragImage (hwnd, wParam);
2018
2019 case HDM_DELETEITEM:
2020 return HEADER_DeleteItem (hwnd, wParam);
2021
2022 /* case HDM_EDITFILTER: */
2023
2024 case HDM_GETBITMAPMARGIN:
2025 return HEADER_GetBitmapMargin(hwnd);
2026
2027 case HDM_GETIMAGELIST:
2028 return HEADER_GetImageList (hwnd);
2029
2030 case HDM_GETITEMA:
2031 case HDM_GETITEMW:
2032 return HEADER_GetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW);
2033
2034 case HDM_GETITEMCOUNT:
2035 return HEADER_GetItemCount (hwnd);
2036
2037 case HDM_GETITEMRECT:
2038 return HEADER_GetItemRect (hwnd, wParam, lParam);
2039
2040 case HDM_GETORDERARRAY:
2041 return HEADER_GetOrderArray(hwnd, wParam, lParam);
2042
2043 case HDM_GETUNICODEFORMAT:
2044 return HEADER_GetUnicodeFormat (hwnd);
2045
2046 case HDM_HITTEST:
2047 return HEADER_HitTest (hwnd, wParam, lParam);
2048
2049 case HDM_INSERTITEMA:
2050 case HDM_INSERTITEMW:
2051 return HEADER_InsertItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW);
2052
2053 case HDM_LAYOUT:
2054 return HEADER_Layout (hwnd, wParam, lParam);
2055
2056 case HDM_ORDERTOINDEX:
2057 return HEADER_OrderToIndex(hwnd, wParam);
2058
2059 case HDM_SETBITMAPMARGIN:
2060 return HEADER_SetBitmapMargin(hwnd, wParam);
2061
2062 /* case HDM_SETFILTERCHANGETIMEOUT: */
2063
2064 case HDM_SETHOTDIVIDER:
2065 return HEADER_SetHotDivider(hwnd, wParam, lParam);
2066
2067 case HDM_SETIMAGELIST:
2068 return HEADER_SetImageList (hwnd, (HIMAGELIST)lParam);
2069
2070 case HDM_SETITEMA:
2071 case HDM_SETITEMW:
2072 return HEADER_SetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW);
2073
2074 case HDM_SETORDERARRAY:
2075 return HEADER_SetOrderArray(hwnd, wParam, lParam);
2076
2077 case HDM_SETUNICODEFORMAT:
2078 return HEADER_SetUnicodeFormat (hwnd, wParam);
2079
2080 case WM_CREATE:
2081 return HEADER_Create (hwnd, wParam, lParam);
2082
2083 case WM_DESTROY:
2084 return HEADER_Destroy (hwnd, wParam, lParam);
2085
2086 case WM_NCDESTROY:
2087 return HEADER_NCDestroy (hwnd, wParam, lParam);
2088
2089 case WM_ERASEBKGND:
2090 return 1;
2091
2092 case WM_GETDLGCODE:
2093 return DLGC_WANTTAB | DLGC_WANTARROWS;
2094
2095 case WM_GETFONT:
2096 return HEADER_GetFont (hwnd);
2097
2098 case WM_LBUTTONDBLCLK:
2099 return HEADER_LButtonDblClk (hwnd, wParam, lParam);
2100
2101 case WM_LBUTTONDOWN:
2102 return HEADER_LButtonDown (hwnd, wParam, lParam);
2103
2104 case WM_LBUTTONUP:
2105 return HEADER_LButtonUp (hwnd, wParam, lParam);
2106
2107 case WM_MOUSELEAVE:
2108 return HEADER_MouseLeave (hwnd, wParam, lParam);
2109
2110 case WM_MOUSEMOVE:
2111 return HEADER_MouseMove (hwnd, wParam, lParam);
2112
2113 case WM_NOTIFYFORMAT:
2114 return HEADER_NotifyFormat (hwnd, wParam, lParam);
2115
2116 case WM_SIZE:
2117 return HEADER_Size (hwnd, wParam);
2118
2119 case WM_THEMECHANGED:
2120 return HEADER_ThemeChanged (hwnd);
2121
2122 case WM_PRINTCLIENT:
2123 case WM_PAINT:
2124 return HEADER_Paint (hwnd, wParam);
2125
2126 case WM_RBUTTONUP:
2127 return HEADER_RButtonUp (hwnd, wParam, lParam);
2128
2129 case WM_SETCURSOR:
2130 return HEADER_SetCursor (hwnd, wParam, lParam);
2131
2132 case WM_SETFONT:
2133 return HEADER_SetFont (hwnd, wParam, lParam);
2134
2135 case WM_SETREDRAW:
2136 return HEADER_SetRedraw(hwnd, wParam, lParam);
2137
2138 default:
2139 if ((msg >= WM_USER) && (msg < WM_APP))
2140 ERR("unknown msg %04x wp=%04x lp=%08lx\n",
2141 msg, wParam, lParam );
2142 return DefWindowProcW(hwnd, msg, wParam, lParam);
2143 }
2144 }
2145
2146
2147 VOID
2148 HEADER_Register (void)
2149 {
2150 WNDCLASSW wndClass;
2151
2152 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2153 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
2154 wndClass.lpfnWndProc = HEADER_WindowProc;
2155 wndClass.cbClsExtra = 0;
2156 wndClass.cbWndExtra = sizeof(HEADER_INFO *);
2157 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2158 wndClass.lpszClassName = WC_HEADERW;
2159
2160 RegisterClassW (&wndClass);
2161 }
2162
2163
2164 VOID
2165 HEADER_Unregister (void)
2166 {
2167 UnregisterClassW (WC_HEADERW, NULL);
2168 }
Work in progress by Kai Blin