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[COMCTL32]
[reactos.git] / reactos / dll / win32 / comctl32 / header.c
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 "comctl32.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(header);
33
34 typedef struct
35 {
36 INT cxy;
37 HBITMAP hbm;
38 LPWSTR pszText;
39 INT fmt;
40 LPARAM lParam;
41 INT iImage;
42 INT iOrder; /* see documentation of HD_ITEM */
43
44 BOOL bDown; /* is item pressed? (used for drawing) */
45 RECT rect; /* bounding rectangle of the item */
46 DWORD callbackMask; /* HDI_* flags for items that are callback */
47 } HEADER_ITEM;
48
49
50 typedef struct
51 {
52 HWND hwndSelf; /* Control window */
53 HWND hwndNotify; /* Owner window to send notifications to */
54 INT nNotifyFormat; /* format used for WM_NOTIFY messages */
55 UINT uNumItem; /* number of items (columns) */
56 INT nHeight; /* height of the header (pixels) */
57 HFONT hFont; /* handle to the current font */
58 HCURSOR hcurArrow; /* handle to the arrow cursor */
59 HCURSOR hcurDivider; /* handle to a cursor (used over dividers) <-|-> */
60 HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */
61 BOOL bCaptured; /* Is the mouse captured? */
62 BOOL bPressed; /* Is a header item pressed (down)? */
63 BOOL bDragging; /* Are we dragging an item? */
64 BOOL bTracking; /* Is in tracking mode? */
65 POINT ptLButtonDown; /* The point where the left button was pressed */
66 DWORD dwStyle; /* the cached window GWL_STYLE */
67 INT iMoveItem; /* index of tracked item. (Tracking mode) */
68 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
69 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
70 INT iHotItem; /* index of hot item (cursor is over this item) */
71 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
72 INT iMargin; /* width of the margin that surrounds a bitmap */
73
74 HIMAGELIST himl; /* handle to an image list (may be 0) */
75 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */
76 INT *order; /* array of item IDs indexed by order */
77 BOOL bRectsValid; /* validity flag for bounding rectangles */
78 } HEADER_INFO;
79
80
81 #define VERT_BORDER 4
82 #define DIVIDER_WIDTH 10
83 #define HOT_DIVIDER_WIDTH 2
84 #define MAX_HEADER_TEXT_LEN 260
85 #define HDN_UNICODE_OFFSET 20
86 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
87
88 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER)
89 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER)
90 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM))
91 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP)
92
93
94 static BOOL HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask);
95 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem);
96 static LRESULT HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *hdr);
97 static LRESULT HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect);
98
99 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0};
100
101 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, const HDITEMW *phdi, BOOL fUnicode)
102 {
103 if (mask & HDI_UNSUPPORTED_FIELDS)
104 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS));
105
106 if (mask & HDI_BITMAP)
107 lpItem->hbm = phdi->hbm;
108
109 if (mask & HDI_FORMAT)
110 lpItem->fmt = phdi->fmt;
111
112 if (mask & HDI_LPARAM)
113 lpItem->lParam = phdi->lParam;
114
115 if (mask & HDI_WIDTH)
116 lpItem->cxy = phdi->cxy;
117
118 if (mask & HDI_IMAGE)
119 {
120 lpItem->iImage = phdi->iImage;
121 if (phdi->iImage == I_IMAGECALLBACK)
122 lpItem->callbackMask |= HDI_IMAGE;
123 else
124 lpItem->callbackMask &= ~HDI_IMAGE;
125 }
126
127 if (mask & HDI_TEXT)
128 {
129 Free(lpItem->pszText);
130 lpItem->pszText = NULL;
131
132 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
133 {
134 static const WCHAR emptyString[] = {0};
135
136 LPCWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString);
137 if (fUnicode)
138 Str_SetPtrW(&lpItem->pszText, pszText);
139 else
140 Str_SetPtrAtoW(&lpItem->pszText, (LPCSTR)pszText);
141 lpItem->callbackMask &= ~HDI_TEXT;
142 }
143 else
144 {
145 lpItem->pszText = NULL;
146 lpItem->callbackMask |= HDI_TEXT;
147 }
148 }
149 }
150
151 static inline LRESULT
152 HEADER_IndexToOrder (const HEADER_INFO *infoPtr, INT iItem)
153 {
154 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
155 return lpItem->iOrder;
156 }
157
158
159 static INT
160 HEADER_OrderToIndex(const HEADER_INFO *infoPtr, INT iorder)
161 {
162 if ((iorder <0) || iorder >= infoPtr->uNumItem)
163 return iorder;
164 return infoPtr->order[iorder];
165 }
166
167 static void
168 HEADER_ChangeItemOrder(const HEADER_INFO *infoPtr, INT iItem, INT iNewOrder)
169 {
170 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
171 INT i, nMin, nMax;
172
173 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder);
174 if (lpItem->iOrder < iNewOrder)
175 {
176 memmove(&infoPtr->order[lpItem->iOrder],
177 &infoPtr->order[lpItem->iOrder + 1],
178 (iNewOrder - lpItem->iOrder) * sizeof(INT));
179 }
180 if (iNewOrder < lpItem->iOrder)
181 {
182 memmove(&infoPtr->order[iNewOrder + 1],
183 &infoPtr->order[iNewOrder],
184 (lpItem->iOrder - iNewOrder) * sizeof(INT));
185 }
186 infoPtr->order[iNewOrder] = iItem;
187 nMin = min(lpItem->iOrder, iNewOrder);
188 nMax = max(lpItem->iOrder, iNewOrder);
189 for (i = nMin; i <= nMax; i++)
190 infoPtr->items[infoPtr->order[i]].iOrder = i;
191 }
192
193 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
194 static INT
195 HEADER_NextItem(const HEADER_INFO *infoPtr, INT iItem)
196 {
197 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)+1);
198 }
199
200 static INT
201 HEADER_PrevItem(const HEADER_INFO *infoPtr, INT iItem)
202 {
203 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)-1);
204 }
205
206 /* TRUE when item is not resizable with dividers,
207 note that valid index should be supplied */
208 static inline BOOL
209 HEADER_IsItemFixed(const HEADER_INFO *infoPtr, INT iItem)
210 {
211 return (infoPtr->dwStyle & HDS_NOSIZING) || (infoPtr->items[iItem].fmt & HDF_FIXEDWIDTH);
212 }
213
214 static void
215 HEADER_SetItemBounds (HEADER_INFO *infoPtr)
216 {
217 HEADER_ITEM *phdi;
218 RECT rect;
219 unsigned int i;
220 int x;
221
222 infoPtr->bRectsValid = TRUE;
223
224 if (infoPtr->uNumItem == 0)
225 return;
226
227 GetClientRect (infoPtr->hwndSelf, &rect);
228
229 x = rect.left;
230 for (i = 0; i < infoPtr->uNumItem; i++) {
231 phdi = &infoPtr->items[HEADER_OrderToIndex(infoPtr,i)];
232 phdi->rect.top = rect.top;
233 phdi->rect.bottom = rect.bottom;
234 phdi->rect.left = x;
235 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0);
236 x = phdi->rect.right;
237 }
238 }
239
240 static LRESULT
241 HEADER_Size (HEADER_INFO *infoPtr)
242 {
243 HEADER_SetItemBounds(infoPtr);
244 return 0;
245 }
246
247 static void HEADER_GetHotDividerRect(const HEADER_INFO *infoPtr, RECT *r)
248 {
249 INT iDivider = infoPtr->iHotDivider;
250 if (infoPtr->uNumItem > 0)
251 {
252 HEADER_ITEM *lpItem;
253
254 if (iDivider < infoPtr->uNumItem)
255 {
256 lpItem = &infoPtr->items[iDivider];
257 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
258 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
259 }
260 else
261 {
262 lpItem = &infoPtr->items[HEADER_OrderToIndex(infoPtr, infoPtr->uNumItem-1)];
263 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
264 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
265 }
266 r->top = lpItem->rect.top;
267 r->bottom = lpItem->rect.bottom;
268 }
269 else
270 {
271 RECT clientRect;
272 GetClientRect(infoPtr->hwndSelf, &clientRect);
273 *r = clientRect;
274 r->right = r->left + HOT_DIVIDER_WIDTH/2;
275 }
276 }
277
278 static void
279 HEADER_FillItemFrame(HEADER_INFO *infoPtr, HDC hdc, RECT *r, const HEADER_ITEM *item, BOOL hottrack)
280 {
281 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
282
283 if (theme) {
284 int state = (item->bDown) ? HIS_PRESSED : (hottrack ? HIS_HOT : HIS_NORMAL);
285 DrawThemeBackground (theme, hdc, HP_HEADERITEM, state, r, NULL);
286 GetThemeBackgroundContentRect (theme, hdc, HP_HEADERITEM, state, r, r);
287 }
288 else
289 {
290 HBRUSH hbr = CreateSolidBrush(GetBkColor(hdc));
291 FillRect(hdc, r, hbr);
292 DeleteObject(hbr);
293 }
294 }
295
296 static void
297 HEADER_DrawItemFrame(HEADER_INFO *infoPtr, HDC hdc, RECT *r, const HEADER_ITEM *item)
298 {
299 if (GetWindowTheme(infoPtr->hwndSelf)) return;
300
301 if (!(infoPtr->dwStyle & HDS_FLAT))
302 {
303 if (infoPtr->dwStyle & HDS_BUTTONS) {
304 if (item->bDown)
305 DrawEdge (hdc, r, BDR_RAISEDOUTER, BF_RECT | BF_FLAT | BF_ADJUST);
306 else
307 DrawEdge (hdc, r, EDGE_RAISED, BF_RECT | BF_SOFT | BF_ADJUST);
308 }
309 else
310 DrawEdge (hdc, r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST);
311 }
312 }
313
314 static INT
315 HEADER_DrawItem (HEADER_INFO *infoPtr, HDC hdc, INT iItem, BOOL bHotTrack, LRESULT lCDFlags)
316 {
317 HEADER_ITEM *phdi = &infoPtr->items[iItem];
318 RECT r;
319 INT oldBkMode;
320 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
321 NMCUSTOMDRAW nmcd;
322
323 TRACE("DrawItem(iItem %d bHotTrack %d unicode flag %d)\n", iItem, bHotTrack, (infoPtr->nNotifyFormat == NFR_UNICODE));
324
325 r = phdi->rect;
326 if (r.right - r.left == 0)
327 return phdi->rect.right;
328
329 /* Set the colors before sending NM_CUSTOMDRAW so that it can change them */
330 SetTextColor(hdc, (bHotTrack && !theme) ? COLOR_HIGHLIGHT : COLOR_BTNTEXT);
331 SetBkColor(hdc, comctl32_color.clr3dFace);
332
333 if (lCDFlags & CDRF_NOTIFYITEMDRAW && !(phdi->fmt & HDF_OWNERDRAW))
334 {
335 LRESULT lCDItemFlags;
336
337 nmcd.dwDrawStage = CDDS_PREPAINT | CDDS_ITEM;
338 nmcd.hdc = hdc;
339 nmcd.dwItemSpec = iItem;
340 nmcd.rc = r;
341 nmcd.uItemState = phdi->bDown ? CDIS_SELECTED : 0;
342 nmcd.lItemlParam = phdi->lParam;
343
344 lCDItemFlags = HEADER_SendNotify(infoPtr, NM_CUSTOMDRAW, (NMHDR *)&nmcd);
345 if (lCDItemFlags & CDRF_SKIPDEFAULT)
346 return phdi->rect.right;
347 }
348
349 /* Fill background, owner could draw over it. */
350 HEADER_FillItemFrame(infoPtr, hdc, &r, phdi, bHotTrack);
351
352 if (phdi->fmt & HDF_OWNERDRAW)
353 {
354 DRAWITEMSTRUCT dis;
355 BOOL ret;
356
357 dis.CtlType = ODT_HEADER;
358 dis.CtlID = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
359 dis.itemID = iItem;
360 dis.itemAction = ODA_DRAWENTIRE;
361 dis.itemState = phdi->bDown ? ODS_SELECTED : 0;
362 dis.hwndItem = infoPtr->hwndSelf;
363 dis.hDC = hdc;
364 dis.rcItem = phdi->rect;
365 dis.itemData = phdi->lParam;
366 oldBkMode = SetBkMode(hdc, TRANSPARENT);
367 ret = SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM, dis.CtlID, (LPARAM)&dis);
368 if (oldBkMode != TRANSPARENT)
369 SetBkMode(hdc, oldBkMode);
370
371 if (!ret)
372 HEADER_FillItemFrame(infoPtr, hdc, &r, phdi, bHotTrack);
373
374 /* Edges are always drawn if we don't have attached theme. */
375 HEADER_DrawItemFrame(infoPtr, hdc, &r, phdi);
376 /* If application processed WM_DRAWITEM we should skip label painting,
377 edges are drawn no matter what. */
378 if (ret) return phdi->rect.right;
379 }
380 else
381 {
382 HEADER_FillItemFrame(infoPtr, hdc, &r, phdi, bHotTrack);
383 HEADER_DrawItemFrame(infoPtr, hdc, &r, phdi);
384 }
385
386 if (phdi->bDown) {
387 r.left += 2;
388 r.top += 2;
389 }
390
391 /* Now text and image */
392 {
393 UINT rw, rh, /* width and height of r */
394 *x = NULL, *w = NULL; /* x and width of the pic (bmp or img) which is part of cnt */
395 /* cnt,txt,img,bmp */
396 UINT cx, tx, ix, bx,
397 cw, tw, iw, bw;
398 INT img_cx, img_cy;
399 BITMAP bmp;
400
401 HEADER_PrepareCallbackItems(infoPtr, iItem, HDI_TEXT|HDI_IMAGE);
402 cw = tw = iw = bw = 0;
403 rw = r.right - r.left;
404 rh = r.bottom - r.top;
405
406 if (phdi->fmt & HDF_STRING) {
407 RECT textRect;
408
409 SetRectEmpty(&textRect);
410 DrawTextW (hdc, phdi->pszText, -1,
411 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT);
412 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin;
413 }
414
415 if ((phdi->fmt & HDF_IMAGE) && ImageList_GetIconSize( infoPtr->himl, &img_cx, &img_cy )) {
416 iw = img_cx + 2 * infoPtr->iMargin;
417 x = &ix;
418 w = &iw;
419 }
420
421 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) {
422 GetObjectW (phdi->hbm, sizeof(BITMAP), &bmp);
423 bw = bmp.bmWidth + 2 * infoPtr->iMargin;
424 if (!iw) {
425 x = &bx;
426 w = &bw;
427 }
428 }
429
430 if (bw || iw)
431 cw += *w;
432
433 /* align cx using the unclipped cw */
434 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT)
435 cx = r.left;
436 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER)
437 cx = r.left + rw / 2 - cw / 2;
438 else /* HDF_RIGHT */
439 cx = r.right - cw;
440
441 /* clip cx & cw */
442 if (cx < r.left)
443 cx = r.left;
444 if (cx + cw > r.right)
445 cw = r.right - cx;
446
447 tx = cx + infoPtr->iMargin;
448 /* since cw might have changed we have to recalculate tw */
449 tw = cw - infoPtr->iMargin * 2;
450
451 if (iw || bw) {
452 tw -= *w;
453 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) {
454 /* put pic behind text */
455 *x = cx + tw + infoPtr->iMargin * 3;
456 } else {
457 *x = cx + infoPtr->iMargin;
458 /* move text behind pic */
459 tx += *w;
460 }
461 }
462
463 if (iw && bw) {
464 /* since we're done with the layout we can
465 now calculate the position of bmp which
466 has no influence on alignment and layout
467 because of img */
468 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT)
469 bx = cx - bw + infoPtr->iMargin;
470 else
471 bx = cx + cw + infoPtr->iMargin;
472 }
473
474 if (iw || bw) {
475 HDC hClipDC = GetDC(infoPtr->hwndSelf);
476 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
477 SelectClipRgn(hClipDC, hClipRgn);
478
479 if (bw) {
480 HDC hdcBitmap = CreateCompatibleDC (hClipDC);
481 SelectObject (hdcBitmap, phdi->hbm);
482 BitBlt (hClipDC, bx, r.top + ((INT)rh - bmp.bmHeight) / 2,
483 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
484 DeleteDC (hdcBitmap);
485 }
486
487 if (iw) {
488 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC,
489 ix, r.top + ((INT)rh - img_cy) / 2,
490 img_cx, img_cy, CLR_DEFAULT, CLR_DEFAULT, 0);
491 }
492
493 DeleteObject(hClipRgn);
494 ReleaseDC(infoPtr->hwndSelf, hClipDC);
495 }
496
497 if (((phdi->fmt & HDF_STRING)
498 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP|
499 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */
500 && (phdi->pszText)) {
501 oldBkMode = SetBkMode(hdc, TRANSPARENT);
502 r.left = tx;
503 r.right = tx + tw;
504 DrawTextW (hdc, phdi->pszText, -1,
505 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE);
506 if (oldBkMode != TRANSPARENT)
507 SetBkMode(hdc, oldBkMode);
508 }
509 HEADER_FreeCallbackItems(phdi);
510 }
511
512 return phdi->rect.right;
513 }
514
515 static void
516 HEADER_DrawHotDivider(const HEADER_INFO *infoPtr, HDC hdc)
517 {
518 HBRUSH brush;
519 RECT r;
520
521 HEADER_GetHotDividerRect(infoPtr, &r);
522 brush = CreateSolidBrush(comctl32_color.clrHighlight);
523 FillRect(hdc, &r, brush);
524 DeleteObject(brush);
525 }
526
527 static void
528 HEADER_Refresh (HEADER_INFO *infoPtr, HDC hdc)
529 {
530 HFONT hFont, hOldFont;
531 RECT rect, rcRest;
532 HBRUSH hbrBk;
533 UINT i;
534 INT x;
535 LRESULT lCDFlags;
536 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
537
538 if (!infoPtr->bRectsValid)
539 HEADER_SetItemBounds(infoPtr);
540
541 /* get rect for the bar, adjusted for the border */
542 GetClientRect (infoPtr->hwndSelf, &rect);
543 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hdc, &rect);
544
545 if (infoPtr->bDragging)
546 ImageList_DragShowNolock(FALSE);
547
548 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
549 hOldFont = SelectObject (hdc, hFont);
550
551 /* draw Background */
552 if (infoPtr->uNumItem == 0 && theme == NULL) {
553 hbrBk = GetSysColorBrush(COLOR_3DFACE);
554 FillRect(hdc, &rect, hbrBk);
555 }
556
557 x = rect.left;
558 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) {
559 int idx = HEADER_OrderToIndex(infoPtr,i);
560 if (RectVisible(hdc, &infoPtr->items[idx].rect))
561 HEADER_DrawItem(infoPtr, hdc, idx, infoPtr->iHotItem == idx, lCDFlags);
562 x = infoPtr->items[idx].rect.right;
563 }
564
565 rcRest = rect;
566 rcRest.left = x;
567 if ((x <= rect.right) && RectVisible(hdc, &rcRest) && (infoPtr->uNumItem > 0)) {
568 if (theme != NULL) {
569 DrawThemeBackground(theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rcRest, NULL);
570 }
571 else if (infoPtr->dwStyle & HDS_FLAT) {
572 hbrBk = GetSysColorBrush(COLOR_3DFACE);
573 FillRect(hdc, &rcRest, hbrBk);
574 }
575 else
576 {
577 if (infoPtr->dwStyle & HDS_BUTTONS)
578 DrawEdge (hdc, &rcRest, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE);
579 else
580 DrawEdge (hdc, &rcRest, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
581 }
582 }
583
584 if (infoPtr->iHotDivider != -1)
585 HEADER_DrawHotDivider(infoPtr, hdc);
586
587 if (infoPtr->bDragging)
588 ImageList_DragShowNolock(TRUE);
589 SelectObject (hdc, hOldFont);
590
591 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
592 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hdc, &rect);
593 }
594
595
596 static void
597 HEADER_RefreshItem (HEADER_INFO *infoPtr, INT iItem)
598 {
599 if (!infoPtr->bRectsValid)
600 HEADER_SetItemBounds(infoPtr);
601
602 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[iItem].rect, FALSE);
603 }
604
605
606 static void
607 HEADER_InternalHitTest (const HEADER_INFO *infoPtr, const POINT *lpPt, UINT *pFlags, INT *pItem)
608 {
609 RECT rect, rcTest;
610 UINT iCount;
611 INT width;
612 BOOL bNoWidth;
613
614 GetClientRect (infoPtr->hwndSelf, &rect);
615
616 *pFlags = 0;
617 bNoWidth = FALSE;
618 if (PtInRect (&rect, *lpPt))
619 {
620 if (infoPtr->uNumItem == 0) {
621 *pFlags |= HHT_NOWHERE;
622 *pItem = 1;
623 TRACE("NOWHERE\n");
624 return;
625 }
626 else {
627 /* somewhere inside */
628 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) {
629 rect = infoPtr->items[iCount].rect;
630 width = rect.right - rect.left;
631 if (width == 0) {
632 bNoWidth = TRUE;
633 continue;
634 }
635 if (PtInRect (&rect, *lpPt)) {
636 if (width <= 2 * DIVIDER_WIDTH) {
637 *pFlags |= HHT_ONHEADER;
638 *pItem = iCount;
639 TRACE("ON HEADER %d\n", iCount);
640 return;
641 }
642 if (HEADER_IndexToOrder(infoPtr, iCount) > 0) {
643 rcTest = rect;
644 rcTest.right = rcTest.left + DIVIDER_WIDTH;
645 if (PtInRect (&rcTest, *lpPt)) {
646 if (HEADER_IsItemFixed(infoPtr, HEADER_PrevItem(infoPtr, iCount)))
647 {
648 *pFlags |= HHT_ONHEADER;
649 *pItem = iCount;
650 TRACE("ON HEADER %d\n", *pItem);
651 return;
652 }
653 if (bNoWidth) {
654 *pFlags |= HHT_ONDIVOPEN;
655 *pItem = HEADER_PrevItem(infoPtr, iCount);
656 TRACE("ON DIVOPEN %d\n", *pItem);
657 return;
658 }
659 else {
660 *pFlags |= HHT_ONDIVIDER;
661 *pItem = HEADER_PrevItem(infoPtr, iCount);
662 TRACE("ON DIVIDER %d\n", *pItem);
663 return;
664 }
665 }
666 }
667 rcTest = rect;
668 rcTest.left = rcTest.right - DIVIDER_WIDTH;
669 if (!HEADER_IsItemFixed(infoPtr, iCount) && PtInRect (&rcTest, *lpPt))
670 {
671 *pFlags |= HHT_ONDIVIDER;
672 *pItem = iCount;
673 TRACE("ON DIVIDER %d\n", *pItem);
674 return;
675 }
676
677 *pFlags |= HHT_ONHEADER;
678 *pItem = iCount;
679 TRACE("ON HEADER %d\n", iCount);
680 return;
681 }
682 }
683
684 /* check for last divider part (on nowhere) */
685 if (!HEADER_IsItemFixed(infoPtr, infoPtr->uNumItem - 1))
686 {
687 rect = infoPtr->items[infoPtr->uNumItem-1].rect;
688 rect.left = rect.right;
689 rect.right += DIVIDER_WIDTH;
690 if (PtInRect (&rect, *lpPt)) {
691 if (bNoWidth) {
692 *pFlags |= HHT_ONDIVOPEN;
693 *pItem = infoPtr->uNumItem - 1;
694 TRACE("ON DIVOPEN %d\n", *pItem);
695 return;
696 }
697 else {
698 *pFlags |= HHT_ONDIVIDER;
699 *pItem = infoPtr->uNumItem - 1;
700 TRACE("ON DIVIDER %d\n", *pItem);
701 return;
702 }
703 }
704 }
705
706 *pFlags |= HHT_NOWHERE;
707 *pItem = 1;
708 TRACE("NOWHERE\n");
709 return;
710 }
711 }
712 else {
713 if (lpPt->x < rect.left) {
714 TRACE("TO LEFT\n");
715 *pFlags |= HHT_TOLEFT;
716 }
717 else if (lpPt->x > rect.right) {
718 TRACE("TO RIGHT\n");
719 *pFlags |= HHT_TORIGHT;
720 }
721
722 if (lpPt->y < rect.top) {
723 TRACE("ABOVE\n");
724 *pFlags |= HHT_ABOVE;
725 }
726 else if (lpPt->y > rect.bottom) {
727 TRACE("BELOW\n");
728 *pFlags |= HHT_BELOW;
729 }
730 }
731
732 *pItem = 1;
733 TRACE("flags=0x%X\n", *pFlags);
734 return;
735 }
736
737
738 static void
739 HEADER_DrawTrackLine (const HEADER_INFO *infoPtr, HDC hdc, INT x)
740 {
741 RECT rect;
742
743 GetClientRect (infoPtr->hwndSelf, &rect);
744 PatBlt( hdc, x, rect.top, 1, rect.bottom - rect.top, DSTINVERT );
745 }
746
747 /***
748 * DESCRIPTION:
749 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify
750 *
751 * PARAMETER(S):
752 * [I] infoPtr : the header that wants to send the notify
753 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW
754 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW
755 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA
756 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after
757 * the HDITEM is no longer in use or NULL if none was needed
758 *
759 * NOTE: We depend on HDITEMA and HDITEMW having the same structure
760 */
761 static void HEADER_CopyHDItemForNotify(const HEADER_INFO *infoPtr, HDITEMW *dest,
762 const HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch)
763 {
764 *ppvScratch = NULL;
765 *dest = *src;
766
767 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */
768 {
769 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE)
770 {
771 dest->pszText = NULL;
772 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText);
773 *ppvScratch = dest->pszText;
774 }
775
776 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE)
777 {
778 dest->pszText = NULL;
779 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText);
780 *ppvScratch = dest->pszText;
781 }
782 }
783 }
784
785 static UINT HEADER_NotifyCodeWtoA(UINT code)
786 {
787 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/
788 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE)
789 return code + HDN_UNICODE_OFFSET;
790 else
791 return code;
792 }
793
794 static LRESULT
795 HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *nmhdr)
796 {
797 nmhdr->hwndFrom = infoPtr->hwndSelf;
798 nmhdr->idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
799 nmhdr->code = code;
800
801 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
802 nmhdr->idFrom, (LPARAM)nmhdr);
803 }
804
805 static BOOL
806 HEADER_SendSimpleNotify (const HEADER_INFO *infoPtr, UINT code)
807 {
808 NMHDR nmhdr;
809 return (BOOL)HEADER_SendNotify(infoPtr, code, &nmhdr);
810 }
811
812 static LRESULT
813 HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect)
814 {
815 NMCUSTOMDRAW nm;
816 nm.dwDrawStage = dwDrawStage;
817 nm.hdc = hdc;
818 nm.rc = *rect;
819 nm.dwItemSpec = 0;
820 nm.uItemState = 0;
821 nm.lItemlParam = 0;
822
823 return HEADER_SendNotify(infoPtr, NM_CUSTOMDRAW, (NMHDR *)&nm);
824 }
825
826 static BOOL
827 HEADER_SendNotifyWithHDItemT(const HEADER_INFO *infoPtr, UINT code, INT iItem, HDITEMW *lpItem)
828 {
829 NMHEADERW nmhdr;
830
831 if (infoPtr->nNotifyFormat != NFR_UNICODE)
832 code = HEADER_NotifyCodeWtoA(code);
833 nmhdr.iItem = iItem;
834 nmhdr.iButton = 0;
835 nmhdr.pitem = lpItem;
836
837 return (BOOL)HEADER_SendNotify(infoPtr, code, (NMHDR *)&nmhdr);
838 }
839
840 static BOOL
841 HEADER_SendNotifyWithIntFieldT(const HEADER_INFO *infoPtr, UINT code, INT iItem, INT mask, INT iValue)
842 {
843 HDITEMW nmitem;
844
845 /* copying only the iValue should be ok but to make the code more robust we copy everything */
846 nmitem.cxy = infoPtr->items[iItem].cxy;
847 nmitem.hbm = infoPtr->items[iItem].hbm;
848 nmitem.pszText = NULL;
849 nmitem.cchTextMax = 0;
850 nmitem.fmt = infoPtr->items[iItem].fmt;
851 nmitem.lParam = infoPtr->items[iItem].lParam;
852 nmitem.iOrder = infoPtr->items[iItem].iOrder;
853 nmitem.iImage = infoPtr->items[iItem].iImage;
854
855 nmitem.mask = mask;
856 switch (mask)
857 {
858 case HDI_WIDTH:
859 nmitem.cxy = iValue;
860 break;
861 case HDI_ORDER:
862 nmitem.iOrder = iValue;
863 break;
864 default:
865 ERR("invalid mask value 0x%x\n", iValue);
866 }
867
868 return HEADER_SendNotifyWithHDItemT(infoPtr, code, iItem, &nmitem);
869 }
870
871 /**
872 * Prepare callback items
873 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA
874 * (so we handle the two cases only doing a specific cast for pszText).
875 * Checks if any of the required fields is a callback. If this is the case sends a
876 * NMHDISPINFO notify to retrieve these items. The items are stored in the
877 * HEADER_ITEM pszText and iImage fields. They should be freed with
878 * HEADER_FreeCallbackItems.
879 *
880 * @param hwnd : hwnd header container handler
881 * @param iItem : the header item id
882 * @param reqMask : required fields. If any of them is callback this function will fetch it
883 *
884 * @return TRUE on success, else FALSE
885 */
886 static BOOL
887 HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask)
888 {
889 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
890 DWORD mask = reqMask & lpItem->callbackMask;
891 NMHDDISPINFOW dispInfo;
892 void *pvBuffer = NULL;
893
894 if (mask == 0)
895 return TRUE;
896 if (mask&HDI_TEXT && lpItem->pszText != NULL)
897 {
898 ERR("(): function called without a call to FreeCallbackItems\n");
899 Free(lpItem->pszText);
900 lpItem->pszText = NULL;
901 }
902
903 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW));
904 dispInfo.hdr.hwndFrom = infoPtr->hwndSelf;
905 dispInfo.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
906 if (infoPtr->nNotifyFormat == NFR_UNICODE)
907 {
908 dispInfo.hdr.code = HDN_GETDISPINFOW;
909 if (mask & HDI_TEXT)
910 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(WCHAR));
911 }
912 else
913 {
914 dispInfo.hdr.code = HDN_GETDISPINFOA;
915 if (mask & HDI_TEXT)
916 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(CHAR));
917 }
918 dispInfo.pszText = pvBuffer;
919 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0);
920 dispInfo.iItem = iItem;
921 dispInfo.mask = mask;
922 dispInfo.lParam = lpItem->lParam;
923
924 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A');
925 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, dispInfo.hdr.idFrom, (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 = 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)
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 (HEADER_INFO *infoPtr, INT iItem)
983 {
984 HEADER_ITEM *lpItem;
985 HIMAGELIST himl;
986 HBITMAP hMemory, hOldBitmap;
987 LRESULT lCDFlags;
988 RECT rc;
989 HDC hMemoryDC;
990 HDC hDeviceDC;
991 int height, width;
992 HFONT hFont;
993
994 if (iItem >= infoPtr->uNumItem)
995 return FALSE;
996
997 if (!infoPtr->bRectsValid)
998 HEADER_SetItemBounds(infoPtr);
999
1000 lpItem = &infoPtr->items[iItem];
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 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject(SYSTEM_FONT);
1011 SelectObject(hMemoryDC, hFont);
1012
1013 GetClientRect(infoPtr->hwndSelf, &rc);
1014 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hMemoryDC, &rc);
1015 HEADER_DrawItem(infoPtr, hMemoryDC, iItem, FALSE, lCDFlags);
1016 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
1017 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hMemoryDC, &rc);
1018
1019 hMemory = SelectObject(hMemoryDC, hOldBitmap);
1020 DeleteDC(hMemoryDC);
1021
1022 if (hMemory == NULL) /* if anything failed */
1023 return FALSE;
1024
1025 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1);
1026 ImageList_Add(himl, hMemory, NULL);
1027 DeleteObject(hMemory);
1028 return (LRESULT)himl;
1029 }
1030
1031 static LRESULT
1032 HEADER_SetHotDivider(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1033 {
1034 INT iDivider;
1035 RECT r;
1036
1037 if (wParam)
1038 {
1039 POINT pt;
1040 UINT flags;
1041 pt.x = (INT)(SHORT)LOWORD(lParam);
1042 pt.y = 0;
1043 HEADER_InternalHitTest (infoPtr, &pt, &flags, &iDivider);
1044
1045 if (flags & HHT_TOLEFT)
1046 iDivider = 0;
1047 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
1048 iDivider = infoPtr->uNumItem;
1049 else
1050 {
1051 HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
1052 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
1053 iDivider = HEADER_NextItem(infoPtr, iDivider);
1054 }
1055 }
1056 else
1057 iDivider = (INT)lParam;
1058
1059 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
1060 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
1061 return iDivider;
1062
1063 if (iDivider != infoPtr->iHotDivider)
1064 {
1065 if (infoPtr->iHotDivider != -1)
1066 {
1067 HEADER_GetHotDividerRect(infoPtr, &r);
1068 InvalidateRect(infoPtr->hwndSelf, &r, FALSE);
1069 }
1070 infoPtr->iHotDivider = iDivider;
1071 if (iDivider != -1)
1072 {
1073 HEADER_GetHotDividerRect(infoPtr, &r);
1074 InvalidateRect(infoPtr->hwndSelf, &r, FALSE);
1075 }
1076 }
1077 return iDivider;
1078 }
1079
1080 static LRESULT
1081 HEADER_DeleteItem (HEADER_INFO *infoPtr, INT iItem)
1082 {
1083 INT iOrder;
1084 UINT i;
1085
1086 TRACE("[iItem=%d]\n", iItem);
1087
1088 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1089 return FALSE;
1090
1091 for (i = 0; i < infoPtr->uNumItem; i++)
1092 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1093
1094 iOrder = infoPtr->items[iItem].iOrder;
1095 Free(infoPtr->items[iItem].pszText);
1096
1097 infoPtr->uNumItem--;
1098 memmove(&infoPtr->items[iItem], &infoPtr->items[iItem + 1],
1099 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM));
1100 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1],
1101 (infoPtr->uNumItem - iOrder) * sizeof(INT));
1102 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1103 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1104
1105 /* Correct the orders */
1106 for (i = 0; i < infoPtr->uNumItem; i++)
1107 {
1108 if (infoPtr->order[i] > iItem)
1109 infoPtr->order[i]--;
1110 if (i >= iOrder)
1111 infoPtr->items[infoPtr->order[i]].iOrder = i;
1112 }
1113 for (i = 0; i < infoPtr->uNumItem; i++)
1114 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1115
1116 HEADER_SetItemBounds (infoPtr);
1117 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1118
1119 return TRUE;
1120 }
1121
1122
1123 static LRESULT
1124 HEADER_GetImageList (const HEADER_INFO *infoPtr)
1125 {
1126 return (LRESULT)infoPtr->himl;
1127 }
1128
1129
1130 static LRESULT
1131 HEADER_GetItemT (const HEADER_INFO *infoPtr, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1132 {
1133 HEADER_ITEM *lpItem;
1134 UINT mask;
1135
1136 if (!phdi)
1137 return FALSE;
1138
1139 TRACE("[nItem=%d]\n", nItem);
1140
1141 mask = phdi->mask;
1142 if (mask == 0)
1143 return TRUE;
1144
1145 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1146 return FALSE;
1147
1148 if (mask & HDI_UNKNOWN_FIELDS)
1149 {
1150 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask);
1151 mask &= HDI_COMCTL32_4_0_FIELDS;
1152 }
1153
1154 lpItem = &infoPtr->items[nItem];
1155 HEADER_PrepareCallbackItems(infoPtr, nItem, mask);
1156
1157 if (mask & HDI_BITMAP)
1158 phdi->hbm = lpItem->hbm;
1159
1160 if (mask & HDI_FORMAT)
1161 phdi->fmt = lpItem->fmt;
1162
1163 if (mask & HDI_WIDTH)
1164 phdi->cxy = lpItem->cxy;
1165
1166 if (mask & HDI_LPARAM)
1167 phdi->lParam = lpItem->lParam;
1168
1169 if (mask & HDI_IMAGE)
1170 phdi->iImage = lpItem->iImage;
1171
1172 if (mask & HDI_ORDER)
1173 phdi->iOrder = lpItem->iOrder;
1174
1175 if (mask & HDI_TEXT)
1176 {
1177 if (bUnicode)
1178 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax);
1179 else
1180 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax);
1181 }
1182
1183 HEADER_FreeCallbackItems(lpItem);
1184 return TRUE;
1185 }
1186
1187
1188 static inline LRESULT
1189 HEADER_GetItemCount (const HEADER_INFO *infoPtr)
1190 {
1191 return infoPtr->uNumItem;
1192 }
1193
1194
1195 static LRESULT
1196 HEADER_GetItemRect (const HEADER_INFO *infoPtr, INT iItem, LPRECT lpRect)
1197 {
1198 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1199 return FALSE;
1200
1201 lpRect->left = infoPtr->items[iItem].rect.left;
1202 lpRect->right = infoPtr->items[iItem].rect.right;
1203 lpRect->top = infoPtr->items[iItem].rect.top;
1204 lpRect->bottom = infoPtr->items[iItem].rect.bottom;
1205
1206 return TRUE;
1207 }
1208
1209
1210 static LRESULT
1211 HEADER_GetOrderArray(const HEADER_INFO *infoPtr, INT size, LPINT order)
1212 {
1213 if ((UINT)size <infoPtr->uNumItem)
1214 return FALSE;
1215
1216 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT));
1217 return TRUE;
1218 }
1219
1220 /* Returns index of first duplicate 'value' from [0,to) range,
1221 or -1 if there isn't any */
1222 static INT has_duplicate(const INT *array, INT to, INT value)
1223 {
1224 INT i;
1225 for(i = 0; i < to; i++)
1226 if (array[i] == value) return i;
1227 return -1;
1228 }
1229
1230 /* returns next available value from [0,max] not to duplicate in [0,to) */
1231 static INT get_nextvalue(const INT *array, INT to, INT max)
1232 {
1233 INT i;
1234 for(i = 0; i < max; i++)
1235 if (has_duplicate(array, to, i) == -1) return i;
1236 return 0;
1237 }
1238
1239 static LRESULT
1240 HEADER_SetOrderArray(HEADER_INFO *infoPtr, INT size, const INT *order)
1241 {
1242 HEADER_ITEM *lpItem;
1243 INT i;
1244
1245 if ((UINT)size != infoPtr->uNumItem)
1246 return FALSE;
1247
1248 if (TRACE_ON(header))
1249 {
1250 TRACE("count=%d, order array={", size);
1251 for (i = 0; i < size; i++)
1252 TRACE("%d%c", order[i], i != size-1 ? ',' : '}');
1253 TRACE("\n");
1254 }
1255
1256 for (i=0; i<size; i++)
1257 {
1258 if (order[i] >= size || order[i] < 0)
1259 /* on invalid index get next available */
1260 /* FIXME: if i==0 array item is out of range behaviour is
1261 different, see tests */
1262 infoPtr->order[i] = get_nextvalue(infoPtr->order, i, size);
1263 else
1264 {
1265 INT j, dup;
1266
1267 infoPtr->order[i] = order[i];
1268 j = i;
1269 /* remove duplicates */
1270 while ((dup = has_duplicate(infoPtr->order, j, order[j])) != -1)
1271 {
1272 INT next;
1273
1274 next = get_nextvalue(infoPtr->order, j, size);
1275 infoPtr->order[dup] = next;
1276 j--;
1277 }
1278 }
1279 }
1280 /* sync with item data */
1281 for (i=0; i<size; i++)
1282 {
1283 lpItem = &infoPtr->items[infoPtr->order[i]];
1284 lpItem->iOrder = i;
1285 }
1286 HEADER_SetItemBounds(infoPtr);
1287 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1288 return TRUE;
1289 }
1290
1291 static inline LRESULT
1292 HEADER_GetUnicodeFormat (const HEADER_INFO *infoPtr)
1293 {
1294 return (infoPtr->nNotifyFormat == NFR_UNICODE);
1295 }
1296
1297
1298 static LRESULT
1299 HEADER_HitTest (const HEADER_INFO *infoPtr, LPHDHITTESTINFO phti)
1300 {
1301 UINT outside = HHT_NOWHERE | HHT_ABOVE | HHT_BELOW | HHT_TOLEFT | HHT_TORIGHT;
1302
1303 HEADER_InternalHitTest (infoPtr, &phti->pt, &phti->flags, &phti->iItem);
1304
1305 if (phti->flags & outside)
1306 return phti->iItem = -1;
1307 else
1308 return phti->iItem;
1309 }
1310
1311
1312 static LRESULT
1313 HEADER_InsertItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1314 {
1315 HEADER_ITEM *lpItem;
1316 INT iOrder;
1317 UINT i;
1318 UINT copyMask;
1319
1320 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0))
1321 return -1;
1322
1323 if (nItem > infoPtr->uNumItem)
1324 nItem = infoPtr->uNumItem;
1325
1326 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem;
1327 if (iOrder < 0)
1328 iOrder = 0;
1329 else if (infoPtr->uNumItem < iOrder)
1330 iOrder = infoPtr->uNumItem;
1331
1332 infoPtr->uNumItem++;
1333 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1334 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1335
1336 /* make space for the new item */
1337 memmove(&infoPtr->items[nItem + 1], &infoPtr->items[nItem],
1338 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM));
1339 memmove(&infoPtr->order[iOrder + 1], &infoPtr->order[iOrder],
1340 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT));
1341
1342 /* update the order array */
1343 infoPtr->order[iOrder] = nItem;
1344 for (i = 0; i < infoPtr->uNumItem; i++)
1345 {
1346 if (i != iOrder && infoPtr->order[i] >= nItem)
1347 infoPtr->order[i]++;
1348 infoPtr->items[infoPtr->order[i]].iOrder = i;
1349 }
1350
1351 lpItem = &infoPtr->items[nItem];
1352 ZeroMemory(lpItem, sizeof(HEADER_ITEM));
1353 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */
1354 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM;
1355 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode);
1356 lpItem->iOrder = iOrder;
1357
1358 /* set automatically some format bits */
1359 if (phdi->mask & HDI_TEXT)
1360 lpItem->fmt |= HDF_STRING;
1361 else
1362 lpItem->fmt &= ~HDF_STRING;
1363
1364 if (lpItem->hbm != NULL)
1365 lpItem->fmt |= HDF_BITMAP;
1366 else
1367 lpItem->fmt &= ~HDF_BITMAP;
1368
1369 if (phdi->mask & HDI_IMAGE)
1370 lpItem->fmt |= HDF_IMAGE;
1371
1372 HEADER_SetItemBounds (infoPtr);
1373 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1374
1375 return nItem;
1376 }
1377
1378
1379 static LRESULT
1380 HEADER_Layout (HEADER_INFO *infoPtr, LPHDLAYOUT lpLayout)
1381 {
1382 lpLayout->pwpos->hwnd = infoPtr->hwndSelf;
1383 lpLayout->pwpos->hwndInsertAfter = 0;
1384 lpLayout->pwpos->x = lpLayout->prc->left;
1385 lpLayout->pwpos->y = lpLayout->prc->top;
1386 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left;
1387 if (infoPtr->dwStyle & HDS_HIDDEN)
1388 lpLayout->pwpos->cy = 0;
1389 else {
1390 lpLayout->pwpos->cy = infoPtr->nHeight;
1391 lpLayout->prc->top += infoPtr->nHeight;
1392 }
1393 lpLayout->pwpos->flags = SWP_NOZORDER;
1394
1395 TRACE("Layout x=%d y=%d cx=%d cy=%d\n",
1396 lpLayout->pwpos->x, lpLayout->pwpos->y,
1397 lpLayout->pwpos->cx, lpLayout->pwpos->cy);
1398
1399 infoPtr->bRectsValid = FALSE;
1400
1401 return TRUE;
1402 }
1403
1404
1405 static LRESULT
1406 HEADER_SetImageList (HEADER_INFO *infoPtr, HIMAGELIST himl)
1407 {
1408 HIMAGELIST himlOld;
1409
1410 TRACE("(himl %p)\n", himl);
1411 himlOld = infoPtr->himl;
1412 infoPtr->himl = himl;
1413
1414 /* FIXME: Refresh needed??? */
1415
1416 return (LRESULT)himlOld;
1417 }
1418
1419
1420 static LRESULT
1421 HEADER_GetBitmapMargin(const HEADER_INFO *infoPtr)
1422 {
1423 return infoPtr->iMargin;
1424 }
1425
1426 static LRESULT
1427 HEADER_SetBitmapMargin(HEADER_INFO *infoPtr, INT iMargin)
1428 {
1429 INT oldMargin = infoPtr->iMargin;
1430
1431 infoPtr->iMargin = iMargin;
1432
1433 return oldMargin;
1434 }
1435
1436 static LRESULT
1437 HEADER_SetItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1438 {
1439 HEADER_ITEM *lpItem;
1440 HDITEMW hdNotify;
1441 void *pvScratch;
1442
1443 if (phdi == NULL)
1444 return FALSE;
1445 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1446 return FALSE;
1447
1448 TRACE("[nItem=%d]\n", nItem);
1449
1450 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch);
1451 if (HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGINGW, nItem, &hdNotify))
1452 {
1453 Free(pvScratch);
1454 return FALSE;
1455 }
1456
1457 lpItem = &infoPtr->items[nItem];
1458 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode);
1459
1460 if (phdi->mask & HDI_ORDER)
1461 if (phdi->iOrder >= 0 && phdi->iOrder < infoPtr->uNumItem)
1462 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder);
1463
1464 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGEDW, nItem, &hdNotify);
1465
1466 HEADER_SetItemBounds (infoPtr);
1467
1468 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1469
1470 Free(pvScratch);
1471 return TRUE;
1472 }
1473
1474 static inline LRESULT
1475 HEADER_SetUnicodeFormat (HEADER_INFO *infoPtr, WPARAM wParam)
1476 {
1477 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE);
1478
1479 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI);
1480
1481 return bTemp;
1482 }
1483
1484
1485 static LRESULT
1486 HEADER_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
1487 {
1488 HEADER_INFO *infoPtr;
1489 TEXTMETRICW tm;
1490 HFONT hOldFont;
1491 HDC hdc;
1492
1493 infoPtr = Alloc (sizeof(HEADER_INFO));
1494 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1495
1496 infoPtr->hwndSelf = hwnd;
1497 infoPtr->hwndNotify = lpcs->hwndParent;
1498 infoPtr->uNumItem = 0;
1499 infoPtr->hFont = 0;
1500 infoPtr->items = 0;
1501 infoPtr->order = 0;
1502 infoPtr->bRectsValid = FALSE;
1503 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1504 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER));
1505 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN));
1506 infoPtr->bPressed = FALSE;
1507 infoPtr->bTracking = FALSE;
1508 infoPtr->dwStyle = lpcs->style;
1509 infoPtr->iMoveItem = 0;
1510 infoPtr->himl = 0;
1511 infoPtr->iHotItem = -1;
1512 infoPtr->iHotDivider = -1;
1513 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
1514 infoPtr->nNotifyFormat =
1515 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
1516
1517 hdc = GetDC (0);
1518 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
1519 GetTextMetricsW (hdc, &tm);
1520 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1521 SelectObject (hdc, hOldFont);
1522 ReleaseDC (0, hdc);
1523
1524 OpenThemeData(hwnd, themeClass);
1525
1526 return 0;
1527 }
1528
1529
1530 static LRESULT
1531 HEADER_Destroy (HEADER_INFO *infoPtr)
1532 {
1533 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf);
1534 CloseThemeData(theme);
1535 return 0;
1536 }
1537
1538 static LRESULT
1539 HEADER_NCDestroy (HEADER_INFO *infoPtr)
1540 {
1541 HEADER_ITEM *lpItem;
1542 INT nItem;
1543
1544 if (infoPtr->items) {
1545 lpItem = infoPtr->items;
1546 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) {
1547 Free(lpItem->pszText);
1548 }
1549 Free (infoPtr->items);
1550 }
1551
1552 Free(infoPtr->order);
1553
1554 SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
1555 Free (infoPtr);
1556
1557 return 0;
1558 }
1559
1560
1561 static inline LRESULT
1562 HEADER_GetFont (const HEADER_INFO *infoPtr)
1563 {
1564 return (LRESULT)infoPtr->hFont;
1565 }
1566
1567
1568 static BOOL
1569 HEADER_IsDragDistance(const HEADER_INFO *infoPtr, const POINT *pt)
1570 {
1571 /* Windows allows for a mouse movement before starting the drag. We use the
1572 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
1573 */
1574 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
1575 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
1576 }
1577
1578 static LRESULT
1579 HEADER_LButtonDblClk (const HEADER_INFO *infoPtr, INT x, INT y)
1580 {
1581 POINT pt;
1582 UINT flags;
1583 INT nItem;
1584
1585 pt.x = x;
1586 pt.y = y;
1587 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1588
1589 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER))
1590 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMDBLCLICKW, nItem, NULL);
1591 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN))
1592 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_DIVIDERDBLCLICKW, nItem, NULL);
1593
1594 return 0;
1595 }
1596
1597
1598 static LRESULT
1599 HEADER_LButtonDown (HEADER_INFO *infoPtr, INT x, INT y)
1600 {
1601 POINT pt;
1602 UINT flags;
1603 INT nItem;
1604 HDC hdc;
1605
1606 pt.x = x;
1607 pt.y = y;
1608 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1609
1610 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) {
1611 SetCapture (infoPtr->hwndSelf);
1612 infoPtr->bCaptured = TRUE;
1613 infoPtr->bPressed = TRUE;
1614 infoPtr->bDragging = FALSE;
1615 infoPtr->iMoveItem = nItem;
1616 infoPtr->ptLButtonDown = pt;
1617
1618 infoPtr->items[nItem].bDown = TRUE;
1619
1620 /* Send WM_CUSTOMDRAW */
1621 hdc = GetDC (infoPtr->hwndSelf);
1622 HEADER_RefreshItem (infoPtr, nItem);
1623 ReleaseDC (infoPtr->hwndSelf, hdc);
1624
1625 TRACE("Pressed item %d!\n", nItem);
1626 }
1627 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) {
1628 INT iCurrWidth = infoPtr->items[nItem].cxy;
1629 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_BEGINTRACKW, nItem, HDI_WIDTH, iCurrWidth))
1630 {
1631 SetCapture (infoPtr->hwndSelf);
1632 infoPtr->bCaptured = TRUE;
1633 infoPtr->bTracking = TRUE;
1634 infoPtr->iMoveItem = nItem;
1635 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x;
1636
1637 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) {
1638 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right;
1639 hdc = GetDC (infoPtr->hwndSelf);
1640 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1641 ReleaseDC (infoPtr->hwndSelf, hdc);
1642 }
1643
1644 TRACE("Begin tracking item %d!\n", nItem);
1645 }
1646 }
1647
1648 return 0;
1649 }
1650
1651
1652 static LRESULT
1653 HEADER_LButtonUp (HEADER_INFO *infoPtr, INT x, INT y)
1654 {
1655 POINT pt;
1656 UINT flags;
1657 INT nItem;
1658 HDC hdc;
1659
1660 pt.x = x;
1661 pt.y = y;
1662 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1663
1664 if (infoPtr->bPressed) {
1665
1666 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1667
1668 if (infoPtr->bDragging)
1669 {
1670 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1671 INT iNewOrder;
1672
1673 ImageList_DragShowNolock(FALSE);
1674 ImageList_EndDrag();
1675
1676 if (infoPtr->iHotDivider == -1)
1677 iNewOrder = -1;
1678 else if (infoPtr->iHotDivider == infoPtr->uNumItem)
1679 iNewOrder = infoPtr->uNumItem-1;
1680 else
1681 {
1682 iNewOrder = HEADER_IndexToOrder(infoPtr, infoPtr->iHotDivider);
1683 if (iNewOrder > lpItem->iOrder)
1684 iNewOrder--;
1685 }
1686
1687 if (iNewOrder != -1 &&
1688 !HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, iNewOrder))
1689 {
1690 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder);
1691 infoPtr->bRectsValid = FALSE;
1692 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1693 }
1694 else
1695 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
1696
1697 infoPtr->bDragging = FALSE;
1698 HEADER_SetHotDivider(infoPtr, FALSE, -1);
1699 }
1700 else
1701 {
1702 hdc = GetDC (infoPtr->hwndSelf);
1703 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem);
1704 ReleaseDC (infoPtr->hwndSelf, hdc);
1705
1706 if (!(infoPtr->dwStyle & HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
1707 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCLICKW, infoPtr->iMoveItem, NULL);
1708 }
1709
1710 TRACE("Released item %d!\n", infoPtr->iMoveItem);
1711 infoPtr->bPressed = FALSE;
1712 }
1713 else if (infoPtr->bTracking) {
1714 INT iNewWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
1715 if (iNewWidth < 0)
1716 iNewWidth = 0;
1717 TRACE("End tracking item %d!\n", infoPtr->iMoveItem);
1718 infoPtr->bTracking = FALSE;
1719
1720 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1721
1722 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) {
1723 hdc = GetDC (infoPtr->hwndSelf);
1724 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1725 ReleaseDC (infoPtr->hwndSelf, hdc);
1726 }
1727
1728 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth))
1729 {
1730 infoPtr->items[infoPtr->iMoveItem].cxy = iNewWidth;
1731 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1732 }
1733
1734 HEADER_SetItemBounds (infoPtr);
1735 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1736 }
1737
1738 if (infoPtr->bCaptured) {
1739 infoPtr->bCaptured = FALSE;
1740 ReleaseCapture ();
1741 HEADER_SendSimpleNotify (infoPtr, NM_RELEASEDCAPTURE);
1742 }
1743
1744 return 0;
1745 }
1746
1747
1748 static LRESULT
1749 HEADER_NotifyFormat (HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1750 {
1751 switch (lParam)
1752 {
1753 case NF_QUERY:
1754 return infoPtr->nNotifyFormat;
1755
1756 case NF_REQUERY:
1757 infoPtr->nNotifyFormat =
1758 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT,
1759 (WPARAM)infoPtr->hwndSelf, NF_QUERY);
1760 return infoPtr->nNotifyFormat;
1761 }
1762
1763 return 0;
1764 }
1765
1766 static LRESULT
1767 HEADER_MouseLeave (HEADER_INFO *infoPtr)
1768 {
1769 /* Reset hot-tracked item when mouse leaves control. */
1770 INT oldHotItem = infoPtr->iHotItem;
1771 HDC hdc = GetDC (infoPtr->hwndSelf);
1772
1773 infoPtr->iHotItem = -1;
1774 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem);
1775 ReleaseDC (infoPtr->hwndSelf, hdc);
1776
1777 return 0;
1778 }
1779
1780
1781 static LRESULT
1782 HEADER_MouseMove (HEADER_INFO *infoPtr, LPARAM lParam)
1783 {
1784 POINT pt;
1785 UINT flags;
1786 INT nItem, nWidth;
1787 HDC hdc;
1788 /* With theming, hottracking is always enabled */
1789 BOOL hotTrackEnabled =
1790 ((infoPtr->dwStyle & HDS_BUTTONS) && (infoPtr->dwStyle & HDS_HOTTRACK))
1791 || (GetWindowTheme (infoPtr->hwndSelf) != NULL);
1792 INT oldHotItem = infoPtr->iHotItem;
1793
1794 pt.x = (INT)(SHORT)LOWORD(lParam);
1795 pt.y = (INT)(SHORT)HIWORD(lParam);
1796 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1797
1798 if (hotTrackEnabled) {
1799 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN))
1800 infoPtr->iHotItem = nItem;
1801 else
1802 infoPtr->iHotItem = -1;
1803 }
1804
1805 if (infoPtr->bCaptured) {
1806 /* check if we should drag the header */
1807 if (infoPtr->bPressed && !infoPtr->bDragging && (infoPtr->dwStyle & HDS_DRAGDROP)
1808 && HEADER_IsDragDistance(infoPtr, &pt))
1809 {
1810 if (!HEADER_SendNotifyWithHDItemT(infoPtr, HDN_BEGINDRAG, infoPtr->iMoveItem, NULL))
1811 {
1812 HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(infoPtr, infoPtr->iMoveItem);
1813 if (hDragItem != NULL)
1814 {
1815 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1816 TRACE("Starting item drag\n");
1817 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
1818 ImageList_DragShowNolock(TRUE);
1819 ImageList_Destroy(hDragItem);
1820 infoPtr->bDragging = TRUE;
1821 }
1822 }
1823 }
1824
1825 if (infoPtr->bDragging)
1826 {
1827 POINT drag;
1828 drag.x = pt.x;
1829 drag.y = 0;
1830 ClientToScreen(infoPtr->hwndSelf, &drag);
1831 ImageList_DragMove(drag.x, drag.y);
1832 HEADER_SetHotDivider(infoPtr, TRUE, lParam);
1833 }
1834
1835 if (infoPtr->bPressed && !infoPtr->bDragging) {
1836 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
1837 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
1838 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
1839 else
1840 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1841 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) {
1842 hdc = GetDC (infoPtr->hwndSelf);
1843 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem);
1844 ReleaseDC (infoPtr->hwndSelf, hdc);
1845 }
1846
1847 TRACE("Moving pressed item %d!\n", infoPtr->iMoveItem);
1848 }
1849 else if (infoPtr->bTracking) {
1850 if (infoPtr->dwStyle & HDS_FULLDRAG) {
1851 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1852 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
1853 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, nWidth))
1854 {
1855 INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
1856 RECT rcClient;
1857 RECT rcScroll;
1858
1859 if (nWidth < 0) nWidth = 0;
1860 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1861 HEADER_SetItemBounds(infoPtr);
1862
1863 GetClientRect(infoPtr->hwndSelf, &rcClient);
1864 rcScroll = rcClient;
1865 rcScroll.left = lpItem->rect.left + nOldWidth;
1866 ScrollWindowEx(infoPtr->hwndSelf, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
1867 InvalidateRect(infoPtr->hwndSelf, &lpItem->rect, FALSE);
1868 UpdateWindow(infoPtr->hwndSelf);
1869
1870 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, nWidth);
1871 }
1872 }
1873 else {
1874 INT iTrackWidth;
1875 hdc = GetDC (infoPtr->hwndSelf);
1876 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1877 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset;
1878 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left)
1879 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left;
1880 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1881 ReleaseDC (infoPtr->hwndSelf, hdc);
1882 iTrackWidth = infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left;
1883 /* FIXME: should stop tracking if HDN_TRACK returns TRUE */
1884 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, iTrackWidth);
1885 }
1886
1887 TRACE("Tracking item %d!\n", infoPtr->iMoveItem);
1888 }
1889 }
1890
1891 if (hotTrackEnabled) {
1892 TRACKMOUSEEVENT tme;
1893 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
1894 hdc = GetDC (infoPtr->hwndSelf);
1895 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem);
1896 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (infoPtr, infoPtr->iHotItem);
1897 ReleaseDC (infoPtr->hwndSelf, hdc);
1898 }
1899 tme.cbSize = sizeof( tme );
1900 tme.dwFlags = TME_LEAVE;
1901 tme.hwndTrack = infoPtr->hwndSelf;
1902 TrackMouseEvent( &tme );
1903 }
1904
1905 return 0;
1906 }
1907
1908
1909 static LRESULT
1910 HEADER_Paint (HEADER_INFO *infoPtr, HDC hdcParam)
1911 {
1912 HDC hdc;
1913 PAINTSTRUCT ps;
1914
1915 hdc = hdcParam==0 ? BeginPaint (infoPtr->hwndSelf, &ps) : hdcParam;
1916 HEADER_Refresh (infoPtr, hdc);
1917 if(!hdcParam)
1918 EndPaint (infoPtr->hwndSelf, &ps);
1919 return 0;
1920 }
1921
1922
1923 static LRESULT
1924 HEADER_RButtonUp (HEADER_INFO *infoPtr, INT x, INT y)
1925 {
1926 BOOL bRet;
1927 POINT pt;
1928
1929 pt.x = x;
1930 pt.y = y;
1931
1932 /* Send a Notify message */
1933 bRet = HEADER_SendSimpleNotify (infoPtr, NM_RCLICK);
1934
1935 /* Change to screen coordinate for WM_CONTEXTMENU */
1936 ClientToScreen(infoPtr->hwndSelf, &pt);
1937
1938 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
1939 SendMessageW( infoPtr->hwndSelf, WM_CONTEXTMENU, (WPARAM) infoPtr->hwndSelf, MAKELPARAM(pt.x, pt.y));
1940
1941 return bRet;
1942 }
1943
1944
1945 static LRESULT
1946 HEADER_SetCursor (HEADER_INFO *infoPtr, LPARAM lParam)
1947 {
1948 POINT pt;
1949 UINT flags;
1950 INT nItem;
1951
1952 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam));
1953
1954 GetCursorPos (&pt);
1955 ScreenToClient (infoPtr->hwndSelf, &pt);
1956
1957 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1958
1959 if (flags == HHT_ONDIVIDER)
1960 SetCursor (infoPtr->hcurDivider);
1961 else if (flags == HHT_ONDIVOPEN)
1962 SetCursor (infoPtr->hcurDivopen);
1963 else
1964 SetCursor (infoPtr->hcurArrow);
1965
1966 return 0;
1967 }
1968
1969
1970 static LRESULT
1971 HEADER_SetFont (HEADER_INFO *infoPtr, HFONT hFont, WORD Redraw)
1972 {
1973 TEXTMETRICW tm;
1974 HFONT hOldFont;
1975 HDC hdc;
1976
1977 infoPtr->hFont = hFont;
1978
1979 hdc = GetDC (0);
1980 hOldFont = SelectObject (hdc, infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT));
1981 GetTextMetricsW (hdc, &tm);
1982 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1983 SelectObject (hdc, hOldFont);
1984 ReleaseDC (0, hdc);
1985
1986 infoPtr->bRectsValid = FALSE;
1987
1988 if (Redraw) {
1989 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1990 }
1991
1992 return 0;
1993 }
1994
1995 static LRESULT HEADER_SetRedraw(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1996 {
1997 /* ignoring the InvalidateRect calls is handled by user32. But some apps expect
1998 * that we invalidate the header and this has to be done manually */
1999 LRESULT ret;
2000
2001 ret = DefWindowProcW(infoPtr->hwndSelf, WM_SETREDRAW, wParam, lParam);
2002 if (wParam)
2003 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
2004 return ret;
2005 }
2006
2007 static INT HEADER_StyleChanged(HEADER_INFO *infoPtr, WPARAM wStyleType,
2008 const STYLESTRUCT *lpss)
2009 {
2010 TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
2011 wStyleType, lpss->styleOld, lpss->styleNew);
2012
2013 if (wStyleType != GWL_STYLE) return 0;
2014
2015 infoPtr->dwStyle = lpss->styleNew;
2016
2017 return 0;
2018 }
2019
2020 /* Update the theme handle after a theme change */
2021 static LRESULT HEADER_ThemeChanged(const HEADER_INFO *infoPtr)
2022 {
2023 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf);
2024 CloseThemeData(theme);
2025 OpenThemeData(infoPtr->hwndSelf, themeClass);
2026 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
2027 return 0;
2028 }
2029
2030
2031 static LRESULT WINAPI
2032 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
2033 {
2034 HEADER_INFO *infoPtr = (HEADER_INFO *)GetWindowLongPtrW(hwnd, 0);
2035
2036 TRACE("hwnd=%p msg=%x wparam=%lx lParam=%lx\n", hwnd, msg, wParam, lParam);
2037 if (!infoPtr && (msg != WM_CREATE))
2038 return DefWindowProcW (hwnd, msg, wParam, lParam);
2039 switch (msg) {
2040 /* case HDM_CLEARFILTER: */
2041
2042 case HDM_CREATEDRAGIMAGE:
2043 return HEADER_CreateDragImage (infoPtr, (INT)wParam);
2044
2045 case HDM_DELETEITEM:
2046 return HEADER_DeleteItem (infoPtr, (INT)wParam);
2047
2048 /* case HDM_EDITFILTER: */
2049
2050 case HDM_GETBITMAPMARGIN:
2051 return HEADER_GetBitmapMargin(infoPtr);
2052
2053 case HDM_GETIMAGELIST:
2054 return HEADER_GetImageList (infoPtr);
2055
2056 case HDM_GETITEMA:
2057 case HDM_GETITEMW:
2058 return HEADER_GetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW);
2059
2060 case HDM_GETITEMCOUNT:
2061 return HEADER_GetItemCount (infoPtr);
2062
2063 case HDM_GETITEMRECT:
2064 return HEADER_GetItemRect (infoPtr, (INT)wParam, (LPRECT)lParam);
2065
2066 case HDM_GETORDERARRAY:
2067 return HEADER_GetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam);
2068
2069 case HDM_GETUNICODEFORMAT:
2070 return HEADER_GetUnicodeFormat (infoPtr);
2071
2072 case HDM_HITTEST:
2073 return HEADER_HitTest (infoPtr, (LPHDHITTESTINFO)lParam);
2074
2075 case HDM_INSERTITEMA:
2076 case HDM_INSERTITEMW:
2077 return HEADER_InsertItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW);
2078
2079 case HDM_LAYOUT:
2080 return HEADER_Layout (infoPtr, (LPHDLAYOUT)lParam);
2081
2082 case HDM_ORDERTOINDEX:
2083 return HEADER_OrderToIndex(infoPtr, (INT)wParam);
2084
2085 case HDM_SETBITMAPMARGIN:
2086 return HEADER_SetBitmapMargin(infoPtr, (INT)wParam);
2087
2088 /* case HDM_SETFILTERCHANGETIMEOUT: */
2089
2090 case HDM_SETHOTDIVIDER:
2091 return HEADER_SetHotDivider(infoPtr, wParam, lParam);
2092
2093 case HDM_SETIMAGELIST:
2094 return HEADER_SetImageList (infoPtr, (HIMAGELIST)lParam);
2095
2096 case HDM_SETITEMA:
2097 case HDM_SETITEMW:
2098 return HEADER_SetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW);
2099
2100 case HDM_SETORDERARRAY:
2101 return HEADER_SetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam);
2102
2103 case HDM_SETUNICODEFORMAT:
2104 return HEADER_SetUnicodeFormat (infoPtr, wParam);
2105
2106 case WM_CREATE:
2107 return HEADER_Create (hwnd, (LPCREATESTRUCTW)lParam);
2108
2109 case WM_DESTROY:
2110 return HEADER_Destroy (infoPtr);
2111
2112 case WM_NCDESTROY:
2113 return HEADER_NCDestroy (infoPtr);
2114
2115 case WM_ERASEBKGND:
2116 return 1;
2117
2118 case WM_GETDLGCODE:
2119 return DLGC_WANTTAB | DLGC_WANTARROWS;
2120
2121 case WM_GETFONT:
2122 return HEADER_GetFont (infoPtr);
2123
2124 case WM_LBUTTONDBLCLK:
2125 return HEADER_LButtonDblClk (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2126
2127 case WM_LBUTTONDOWN:
2128 return HEADER_LButtonDown (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2129
2130 case WM_LBUTTONUP:
2131 return HEADER_LButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2132
2133 case WM_MOUSELEAVE:
2134 return HEADER_MouseLeave (infoPtr);
2135
2136 case WM_MOUSEMOVE:
2137 return HEADER_MouseMove (infoPtr, lParam);
2138
2139 case WM_NOTIFYFORMAT:
2140 return HEADER_NotifyFormat (infoPtr, wParam, lParam);
2141
2142 case WM_SIZE:
2143 return HEADER_Size (infoPtr);
2144
2145 case WM_THEMECHANGED:
2146 return HEADER_ThemeChanged (infoPtr);
2147
2148 case WM_PRINTCLIENT:
2149 case WM_PAINT:
2150 return HEADER_Paint (infoPtr, (HDC)wParam);
2151
2152 case WM_RBUTTONUP:
2153 return HEADER_RButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2154
2155 case WM_SETCURSOR:
2156 return HEADER_SetCursor (infoPtr, lParam);
2157
2158 case WM_SETFONT:
2159 return HEADER_SetFont (infoPtr, (HFONT)wParam, (WORD)lParam);
2160
2161 case WM_SETREDRAW:
2162 return HEADER_SetRedraw(infoPtr, wParam, lParam);
2163
2164 case WM_STYLECHANGED:
2165 return HEADER_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
2166
2167 case WM_SYSCOLORCHANGE:
2168 COMCTL32_RefreshSysColors();
2169 return 0;
2170
2171 default:
2172 if ((msg >= WM_USER) && (msg < WM_APP) && !COMCTL32_IsReflectedMessage(msg))
2173 ERR("unknown msg %04x wp=%04lx lp=%08lx\n",
2174 msg, wParam, lParam );
2175 return DefWindowProcW(hwnd, msg, wParam, lParam);
2176 }
2177 }
2178
2179
2180 VOID
2181 HEADER_Register (void)
2182 {
2183 WNDCLASSW wndClass;
2184
2185 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2186 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
2187 wndClass.lpfnWndProc = HEADER_WindowProc;
2188 wndClass.cbClsExtra = 0;
2189 wndClass.cbWndExtra = sizeof(HEADER_INFO *);
2190 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2191 wndClass.lpszClassName = WC_HEADERW;
2192
2193 RegisterClassW (&wndClass);
2194 }
2195
2196
2197 VOID
2198 HEADER_Unregister (void)
2199 {
2200 UnregisterClassW (WC_HEADERW, NULL);
2201 }
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