-
Notifications
You must be signed in to change notification settings - Fork 30
/
Copy pathsizecbar.cpp
1358 lines (1116 loc) · 41.1 KB
/
sizecbar.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// sizecbar.cpp : implementation file
//
#include "stdafx.h"
#include "sizecbar.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar
IMPLEMENT_DYNAMIC(CSizingControlBar, baseCSizingControlBar);
CSizingControlBar::CSizingControlBar()
{
m_szMinHorz = CSize(33, 32);
m_szMinVert = CSize(33, 32);
m_szMinFloat = CSize(37, 32);
m_szHorz = CSize(200, 200);
m_szVert = CSize(200, 200);
m_szFloat = CSize(200, 200);
m_bTracking = FALSE;
m_bKeepSize = FALSE;
m_bParentSizing = FALSE;
m_cxEdge = 5;
m_bDragShowContent = FALSE;
m_nDockBarID = 0;
m_dwSCBStyle = 0;
}
CSizingControlBar::~CSizingControlBar()
{
}
BEGIN_MESSAGE_MAP(CSizingControlBar, baseCSizingControlBar)
//{{AFX_MSG_MAP(CSizingControlBar)
ON_WM_CREATE()
ON_WM_PAINT()
ON_WM_NCPAINT()
ON_WM_NCCALCSIZE()
ON_WM_WINDOWPOSCHANGING()
ON_WM_CAPTURECHANGED()
ON_WM_SETTINGCHANGE()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_NCLBUTTONDOWN()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONDBLCLK()
ON_WM_RBUTTONDOWN()
ON_WM_NCMOUSEMOVE()
ON_WM_NCHITTEST()
ON_WM_CLOSE()
ON_WM_SIZE()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETTEXT, OnSetText)
END_MESSAGE_MAP()
// old creation method, still here for compatibility reasons
BOOL CSizingControlBar::Create(LPCTSTR lpszWindowName, CWnd* pParentWnd,
CSize sizeDefault, BOOL bHasGripper,
UINT nID, DWORD dwStyle)
{
UNUSED_ALWAYS(bHasGripper);
m_szHorz = m_szVert = m_szFloat = sizeDefault;
return Create(lpszWindowName, pParentWnd, nID, dwStyle);
}
// preffered creation method
BOOL CSizingControlBar::Create(LPCTSTR lpszWindowName,
CWnd* pParentWnd, UINT nID,
DWORD dwStyle)
{
// must have a parent
ASSERT_VALID(pParentWnd);
// cannot be both fixed and dynamic
// (CBRS_SIZE_DYNAMIC is used for resizng when floating)
ASSERT (!((dwStyle & CBRS_SIZE_FIXED) &&
(dwStyle & CBRS_SIZE_DYNAMIC)));
m_dwStyle = dwStyle & CBRS_ALL; // save the control bar styles
// register and create the window - skip CControlBar::Create()
CString wndclass = ::AfxRegisterWndClass(CS_DBLCLKS,
::LoadCursor(NULL, IDC_ARROW),
::GetSysColorBrush(COLOR_BTNFACE), 0);
dwStyle &= ~CBRS_ALL; // keep only the generic window styles
dwStyle |= WS_CLIPCHILDREN; // prevents flashing
if (!CWnd::Create(wndclass, lpszWindowName, dwStyle,
CRect(0, 0, 0, 0), pParentWnd, nID))
return FALSE;
return TRUE;
}
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar operations
#if defined(_SCB_REPLACE_MINIFRAME) && !defined(_SCB_MINIFRAME_CAPTION)
void CSizingControlBar::EnableDocking(DWORD dwDockStyle)
{
// must be CBRS_ALIGN_XXX or CBRS_FLOAT_MULTI only
ASSERT((dwDockStyle & ~(CBRS_ALIGN_ANY|CBRS_FLOAT_MULTI)) == 0);
// cannot have the CBRS_FLOAT_MULTI style
ASSERT((dwDockStyle & CBRS_FLOAT_MULTI) == 0);
// the bar must have CBRS_SIZE_DYNAMIC style
ASSERT((m_dwStyle & CBRS_SIZE_DYNAMIC) != 0);
m_dwDockStyle = dwDockStyle;
if (m_pDockContext == NULL)
m_pDockContext = new CSCBDockContext(this);
// permanently wire the bar's owner to its current parent
if (m_hWndOwner == NULL)
m_hWndOwner = ::GetParent(m_hWnd);
}
#endif
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar message handlers
int CSizingControlBar::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (baseCSizingControlBar::OnCreate(lpCreateStruct) == -1)
return -1;
// query SPI_GETDRAGFULLWINDOWS system parameter
// OnSettingChange() will update m_bDragShowContent
m_bDragShowContent = FALSE;
::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0,
&m_bDragShowContent, 0);
// uncomment this line if you want raised borders
// m_dwSCBStyle |= SCBS_SHOWEDGES;
return 0;
}
LRESULT CSizingControlBar::OnSetText(WPARAM wParam, LPARAM lParam)
{
UNUSED_ALWAYS(wParam);
LRESULT lResult = CWnd::Default();
if (IsFloating() &&
GetParentFrame()->IsKindOf(RUNTIME_CLASS(CMiniDockFrameWnd)))
{
m_pDockBar->SetWindowText((LPCTSTR) lParam); // update dockbar
GetParentFrame()->DelayRecalcLayout(); // refresh miniframe
}
return lResult;
}
const BOOL CSizingControlBar::IsFloating() const
{
return !IsHorzDocked() && !IsVertDocked();
}
const BOOL CSizingControlBar::IsHorzDocked() const
{
return (m_nDockBarID == AFX_IDW_DOCKBAR_TOP ||
m_nDockBarID == AFX_IDW_DOCKBAR_BOTTOM);
}
const BOOL CSizingControlBar::IsVertDocked() const
{
return (m_nDockBarID == AFX_IDW_DOCKBAR_LEFT ||
m_nDockBarID == AFX_IDW_DOCKBAR_RIGHT);
}
const BOOL CSizingControlBar::IsSideTracking() const
{
// don't call this when not tracking
ASSERT(m_bTracking && !IsFloating());
return (m_htEdge == HTLEFT || m_htEdge == HTRIGHT) ?
IsHorzDocked() : IsVertDocked();
}
CSize CSizingControlBar::CalcFixedLayout(BOOL bStretch, BOOL bHorz)
{
if (bStretch) // the bar is stretched (is not the child of a dockbar)
if (bHorz)
return CSize(32767, m_szHorz.cy);
else
return CSize(m_szVert.cx, 32767);
// dirty cast - we need access to protected CDockBar members
CSCBDockBar* pDockBar = (CSCBDockBar*) m_pDockBar;
// force imediate RecalcDelayShow() for all sizing bars on the row
// with delayShow/delayHide flags set to avoid IsVisible() problems
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
AFX_SIZEPARENTPARAMS layout;
layout.hDWP = pDockBar->m_bLayoutQuery ?
NULL : ::BeginDeferWindowPos(arrSCBars.GetSize());
for (int i = 0; i < arrSCBars.GetSize(); i++)
if (arrSCBars[i]->m_nStateFlags & (delayHide|delayShow))
arrSCBars[i]->RecalcDelayShow(&layout);
if (layout.hDWP != NULL)
::EndDeferWindowPos(layout.hDWP);
// get available length
CRect rc = pDockBar->m_rectLayout;
if (rc.IsRectEmpty())
m_pDockSite->GetClientRect(&rc);
int nLengthTotal = bHorz ? rc.Width() + 2 : rc.Height() - 2;
if (IsVisible() && !IsFloating() &&
m_bParentSizing && arrSCBars[0] == this)
if (NegotiateSpace(nLengthTotal, (bHorz != FALSE)))
AlignControlBars();
m_bParentSizing = FALSE;
if (bHorz)
return CSize(max(m_szMinHorz.cx, m_szHorz.cx),
max(m_szMinHorz.cy, m_szHorz.cy));
return CSize(max(m_szMinVert.cx, m_szVert.cx),
max(m_szMinVert.cy, m_szVert.cy));
}
CSize CSizingControlBar::CalcDynamicLayout(int nLength, DWORD dwMode)
{
if (dwMode & (LM_HORZDOCK | LM_VERTDOCK)) // docked ?
{
if (nLength == -1)
m_bParentSizing = TRUE;
return baseCSizingControlBar::CalcDynamicLayout(nLength, dwMode);
}
if (dwMode & LM_MRUWIDTH) return m_szFloat;
if (dwMode & LM_COMMIT) return m_szFloat; // already committed
#ifndef _SCB_REPLACE_MINIFRAME
// check for dialgonal resizing hit test
int nHitTest = m_pDockContext->m_nHitTest;
if (IsFloating() &&
(nHitTest == HTTOPLEFT || nHitTest == HTBOTTOMLEFT ||
nHitTest == HTTOPRIGHT || nHitTest == HTBOTTOMRIGHT))
{
CPoint ptCursor;
::GetCursorPos(&ptCursor);
CRect rFrame, rBar;
GetParentFrame()->GetWindowRect(&rFrame);
GetWindowRect(&rBar);
if (nHitTest == HTTOPLEFT || nHitTest == HTBOTTOMLEFT)
{
m_szFloat.cx = rFrame.left + rBar.Width() - ptCursor.x;
m_pDockContext->m_rectFrameDragHorz.left =
min(ptCursor.x, rFrame.left + rBar.Width() - m_szMinFloat.cx);
}
if (nHitTest == HTTOPLEFT || nHitTest == HTTOPRIGHT)
{
m_szFloat.cy = rFrame.top + rBar.Height() - ptCursor.y;
m_pDockContext->m_rectFrameDragHorz.top =
min(ptCursor.y, rFrame.top + rBar.Height() - m_szMinFloat.cy);
}
if (nHitTest == HTTOPRIGHT || nHitTest == HTBOTTOMRIGHT)
m_szFloat.cx = rBar.Width() + ptCursor.x - rFrame.right;
if (nHitTest == HTBOTTOMLEFT || nHitTest == HTBOTTOMRIGHT)
m_szFloat.cy = rBar.Height() + ptCursor.y - rFrame.bottom;
}
else
#endif //_SCB_REPLACE_MINIFRAME
((dwMode & LM_LENGTHY) ? m_szFloat.cy : m_szFloat.cx) = nLength;
m_szFloat.cx = max(m_szFloat.cx, m_szMinFloat.cx);
m_szFloat.cy = max(m_szFloat.cy, m_szMinFloat.cy);
return m_szFloat;
}
void CSizingControlBar::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos)
{
// force non-client recalc if moved or resized
lpwndpos->flags |= SWP_FRAMECHANGED;
baseCSizingControlBar::OnWindowPosChanging(lpwndpos);
// find on which side are we docked
m_nDockBarID = GetParent()->GetDlgCtrlID();
if (!IsFloating())
if (lpwndpos->flags & SWP_SHOWWINDOW)
m_bKeepSize = TRUE;
}
/////////////////////////////////////////////////////////////////////////
// Mouse Handling
//
void CSizingControlBar::OnLButtonDown(UINT nFlags, CPoint point)
{
if (m_pDockBar != NULL)
{
// start the drag
ASSERT(m_pDockContext != NULL);
ClientToScreen(&point);
m_pDockContext->StartDrag(point);
}
else
CWnd::OnLButtonDown(nFlags, point);
}
void CSizingControlBar::OnLButtonDblClk(UINT nFlags, CPoint point)
{
if (m_pDockBar != NULL)
{
// toggle docking
ASSERT(m_pDockContext != NULL);
m_pDockContext->ToggleDocking();
}
else
CWnd::OnLButtonDblClk(nFlags, point);
}
void CSizingControlBar::OnNcLButtonDown(UINT nHitTest, CPoint point)
{
UNUSED_ALWAYS(point);
if (m_bTracking || IsFloating())
return;
if ((nHitTest >= HTSIZEFIRST) && (nHitTest <= HTSIZELAST))
StartTracking(nHitTest, point); // sizing edge hit
}
void CSizingControlBar::OnLButtonUp(UINT nFlags, CPoint point)
{
if (m_bTracking)
StopTracking();
baseCSizingControlBar::OnLButtonUp(nFlags, point);
}
void CSizingControlBar::OnRButtonDown(UINT nFlags, CPoint point)
{
if (m_bTracking)
StopTracking();
baseCSizingControlBar::OnRButtonDown(nFlags, point);
}
void CSizingControlBar::OnMouseMove(UINT nFlags, CPoint point)
{
if (m_bTracking)
{
CPoint ptScreen = point;
ClientToScreen(&ptScreen);
OnTrackUpdateSize(ptScreen);
}
baseCSizingControlBar::OnMouseMove(nFlags, point);
}
void CSizingControlBar::OnCaptureChanged(CWnd *pWnd)
{
if (m_bTracking && (pWnd != this))
StopTracking();
baseCSizingControlBar::OnCaptureChanged(pWnd);
}
void CSizingControlBar::OnNcCalcSize(BOOL bCalcValidRects,
NCCALCSIZE_PARAMS FAR* lpncsp)
{
UNUSED_ALWAYS(bCalcValidRects);
#ifndef _SCB_REPLACE_MINIFRAME
// Enable diagonal resizing for floating miniframe
if (IsFloating())
{
CFrameWnd* pFrame = GetParentFrame();
if (pFrame != NULL &&
pFrame->IsKindOf(RUNTIME_CLASS(CMiniFrameWnd)))
{
DWORD dwStyle = ::GetWindowLong(pFrame->m_hWnd, GWL_STYLE);
if ((dwStyle & MFS_4THICKFRAME) != 0)
{
pFrame->ModifyStyle(MFS_4THICKFRAME, 0); // clear
GetParent()->ModifyStyle(0, WS_CLIPCHILDREN);
}
}
}
#endif _SCB_REPLACE_MINIFRAME
// compute the the client area
m_dwSCBStyle &= ~SCBS_EDGEALL;
// add resizing edges between bars on the same row
if (!IsFloating() && m_pDockBar != NULL)
{
CSCBArray arrSCBars;
int nThis;
GetRowSizingBars(arrSCBars, nThis);
BOOL bHorz = IsHorzDocked();
if (nThis > 0)
m_dwSCBStyle |= bHorz ? SCBS_EDGELEFT : SCBS_EDGETOP;
if (nThis < arrSCBars.GetUpperBound())
m_dwSCBStyle |= bHorz ? SCBS_EDGERIGHT : SCBS_EDGEBOTTOM;
}
NcCalcClient(&lpncsp->rgrc[0], m_nDockBarID);
}
void CSizingControlBar::NcCalcClient(LPRECT pRc, UINT nDockBarID)
{
CRect rc(pRc);
rc.DeflateRect(3, 5, 3, 3);
if (nDockBarID != AFX_IDW_DOCKBAR_FLOAT)
rc.DeflateRect(2, 0, 2, 2);
switch(nDockBarID)
{
case AFX_IDW_DOCKBAR_TOP:
m_dwSCBStyle |= SCBS_EDGEBOTTOM;
break;
case AFX_IDW_DOCKBAR_BOTTOM:
m_dwSCBStyle |= SCBS_EDGETOP;
break;
case AFX_IDW_DOCKBAR_LEFT:
m_dwSCBStyle |= SCBS_EDGERIGHT;
break;
case AFX_IDW_DOCKBAR_RIGHT:
m_dwSCBStyle |= SCBS_EDGELEFT;
break;
}
// make room for edges only if they will be painted
if (m_dwSCBStyle & SCBS_SHOWEDGES)
rc.DeflateRect(
(m_dwSCBStyle & SCBS_EDGELEFT) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGETOP) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGERIGHT) ? m_cxEdge : 0,
(m_dwSCBStyle & SCBS_EDGEBOTTOM) ? m_cxEdge : 0);
*pRc = rc;
}
void CSizingControlBar::OnNcPaint()
{
// get window DC that is clipped to the non-client area
CWindowDC dc(this);
CRect rcClient, rcBar;
GetClientRect(rcClient);
ClientToScreen(rcClient);
GetWindowRect(rcBar);
rcClient.OffsetRect(-rcBar.TopLeft());
rcBar.OffsetRect(-rcBar.TopLeft());
CDC mdc;
mdc.CreateCompatibleDC(&dc);
CBitmap bm;
bm.CreateCompatibleBitmap(&dc, rcBar.Width(), rcBar.Height());
CBitmap* pOldBm = mdc.SelectObject(&bm);
// draw borders in non-client area
CRect rcDraw = rcBar;
DrawBorders(&mdc, rcDraw);
// erase the NC background
mdc.FillRect(rcDraw, CBrush::FromHandle(
(HBRUSH) GetClassLong(m_hWnd, GCL_HBRBACKGROUND)));
if (m_dwSCBStyle & SCBS_SHOWEDGES)
{
CRect rcEdge; // paint the sizing edges
for (int i = 0; i < 4; i++)
if (GetEdgeRect(rcBar, GetEdgeHTCode(i), rcEdge))
mdc.Draw3dRect(rcEdge, ::GetSysColor(COLOR_BTNHIGHLIGHT),
::GetSysColor(COLOR_BTNSHADOW));
}
NcPaintGripper(&mdc, rcClient);
// client area is not our bussiness :)
dc.IntersectClipRect(rcBar);
dc.ExcludeClipRect(rcClient);
dc.BitBlt(0, 0, rcBar.Width(), rcBar.Height(), &mdc, 0, 0, SRCCOPY);
ReleaseDC(&dc);
mdc.SelectObject(pOldBm);
bm.DeleteObject();
mdc.DeleteDC();
}
void CSizingControlBar::NcPaintGripper(CDC* pDC, CRect rcClient)
{
UNUSED_ALWAYS(pDC);
UNUSED_ALWAYS(rcClient);
}
void CSizingControlBar::OnPaint()
{
// overridden to skip border painting based on clientrect
CPaintDC dc(this);
}
UINT CSizingControlBar::OnNcHitTest(CPoint point)
{
CRect rcBar, rcEdge;
GetWindowRect(rcBar);
if (!IsFloating())
for (int i = 0; i < 4; i++)
if (GetEdgeRect(rcBar, GetEdgeHTCode(i), rcEdge))
if (rcEdge.PtInRect(point))
return GetEdgeHTCode(i);
return HTCLIENT;
}
void CSizingControlBar::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
baseCSizingControlBar::OnSettingChange(uFlags, lpszSection);
m_bDragShowContent = FALSE;
::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0,
&m_bDragShowContent, 0); // update
}
void CSizingControlBar::OnSize(UINT nType, int cx, int cy)
{
UNUSED_ALWAYS(nType);
if ((m_dwSCBStyle & SCBS_SIZECHILD) != 0)
{
// automatic child resizing - only one child is allowed
CWnd* pWnd = GetWindow(GW_CHILD);
if (pWnd != NULL)
{
pWnd->MoveWindow(0, 0, cx, cy);
ASSERT(pWnd->GetWindow(GW_HWNDNEXT) == NULL);
}
}
}
void CSizingControlBar::OnClose()
{
// do nothing: protection against accidentally destruction by the
// child control (i.e. if user hits Esc in a child editctrl)
}
/////////////////////////////////////////////////////////////////////////
// CSizingControlBar implementation helpers
void CSizingControlBar::StartTracking(UINT nHitTest, CPoint point)
{
SetCapture();
// make sure no updates are pending
if (!m_bDragShowContent)
RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW);
m_htEdge = nHitTest;
m_bTracking = TRUE;
BOOL bHorz = IsHorzDocked();
BOOL bHorzTracking = m_htEdge == HTLEFT || m_htEdge == HTRIGHT;
m_nTrackPosOld = bHorzTracking ? point.x : point.y;
CRect rcBar, rcEdge;
GetWindowRect(rcBar);
GetEdgeRect(rcBar, m_htEdge, rcEdge);
m_nTrackEdgeOfs = m_nTrackPosOld -
(bHorzTracking ? rcEdge.CenterPoint().x : rcEdge.CenterPoint().y);
CSCBArray arrSCBars;
int nThis;
GetRowSizingBars(arrSCBars, nThis);
m_nTrackPosMin = m_nTrackPosMax = m_nTrackPosOld;
if (!IsSideTracking())
{
// calc minwidth as the max minwidth of the sizing bars on row
int nMinWidth = bHorz ? m_szMinHorz.cy : m_szMinVert.cx;
for (int i = 0; i < arrSCBars.GetSize(); i++)
nMinWidth = max(nMinWidth, bHorz ?
arrSCBars[i]->m_szMinHorz.cy :
arrSCBars[i]->m_szMinVert.cx);
int nExcessWidth = (bHorz ? m_szHorz.cy : m_szVert.cx) - nMinWidth;
// the control bar cannot grow with more than the width of
// remaining client area of the mainframe
CRect rcT;
m_pDockSite->RepositionBars(0, 0xFFFF, AFX_IDW_PANE_FIRST,
reposQuery, &rcT, NULL, TRUE);
int nMaxWidth = bHorz ? rcT.Height() - 2 : rcT.Width() - 2;
BOOL bTopOrLeft = m_htEdge == HTTOP || m_htEdge == HTLEFT;
m_nTrackPosMin -= bTopOrLeft ? nMaxWidth : nExcessWidth;
m_nTrackPosMax += bTopOrLeft ? nExcessWidth : nMaxWidth;
}
else
{
// side tracking:
// max size is the actual size plus the amount the other
// sizing bars can be decreased until they reach their minsize
if (m_htEdge == HTBOTTOM || m_htEdge == HTRIGHT)
nThis++;
for (int i = 0; i < arrSCBars.GetSize(); i++)
{
CSizingControlBar* pBar = arrSCBars[i];
int nExcessWidth = bHorz ?
pBar->m_szHorz.cx - pBar->m_szMinHorz.cx :
pBar->m_szVert.cy - pBar->m_szMinVert.cy;
if (i < nThis)
m_nTrackPosMin -= nExcessWidth;
else
m_nTrackPosMax += nExcessWidth;
}
}
OnTrackInvertTracker(); // draw tracker
}
void CSizingControlBar::StopTracking()
{
OnTrackInvertTracker(); // erase tracker
m_bTracking = FALSE;
ReleaseCapture();
m_pDockSite->DelayRecalcLayout();
}
void CSizingControlBar::OnTrackUpdateSize(CPoint& point)
{
ASSERT(!IsFloating());
BOOL bHorzTrack = m_htEdge == HTLEFT || m_htEdge == HTRIGHT;
int nTrackPos = bHorzTrack ? point.x : point.y;
nTrackPos = max(m_nTrackPosMin, min(m_nTrackPosMax, nTrackPos));
int nDelta = nTrackPos - m_nTrackPosOld;
if (nDelta == 0)
return; // no pos change
OnTrackInvertTracker(); // erase tracker
m_nTrackPosOld = nTrackPos;
BOOL bHorz = IsHorzDocked();
CSize sizeNew = bHorz ? m_szHorz : m_szVert;
switch (m_htEdge)
{
case HTLEFT: sizeNew -= CSize(nDelta, 0); break;
case HTTOP: sizeNew -= CSize(0, nDelta); break;
case HTRIGHT: sizeNew += CSize(nDelta, 0); break;
case HTBOTTOM: sizeNew += CSize(0, nDelta); break;
}
CSCBArray arrSCBars;
int nThis;
GetRowSizingBars(arrSCBars, nThis);
if (!IsSideTracking())
for (int i = 0; i < arrSCBars.GetSize(); i++)
{
CSizingControlBar* pBar = arrSCBars[i];
// make same width (or height)
(bHorz ? pBar->m_szHorz.cy : pBar->m_szVert.cx) =
bHorz ? sizeNew.cy : sizeNew.cx;
}
else
{
int nGrowingBar = nThis;
BOOL bBefore = m_htEdge == HTTOP || m_htEdge == HTLEFT;
if (bBefore && nDelta > 0)
nGrowingBar--;
if (!bBefore && nDelta < 0)
nGrowingBar++;
if (nGrowingBar != nThis)
bBefore = !bBefore;
// nGrowing is growing
nDelta = abs(nDelta);
CSizingControlBar* pBar = arrSCBars[nGrowingBar];
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) += nDelta;
// the others are shrinking
int nFirst = bBefore ? nGrowingBar - 1 : nGrowingBar + 1;
int nLimit = bBefore ? -1 : arrSCBars.GetSize();
for (int i = nFirst; nDelta != 0 && i != nLimit; i += (bBefore ? -1 : 1))
{
CSizingControlBar* pBar = arrSCBars[i];
int nDeltaT = min(nDelta,
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) -
(bHorz ? pBar->m_szMinHorz.cx : pBar->m_szMinVert.cy));
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) -= nDeltaT;
nDelta -= nDeltaT;
}
}
OnTrackInvertTracker(); // redraw tracker at new pos
if (m_bDragShowContent)
m_pDockSite->DelayRecalcLayout();
}
void CSizingControlBar::OnTrackInvertTracker()
{
ASSERT(m_bTracking);
if (m_bDragShowContent)
return; // don't show tracker if DragFullWindows is on
BOOL bHorz = IsHorzDocked();
CRect rc, rcBar, rcDock, rcFrame;
GetWindowRect(rcBar);
m_pDockBar->GetWindowRect(rcDock);
m_pDockSite->GetWindowRect(rcFrame);
VERIFY(GetEdgeRect(rcBar, m_htEdge, rc));
if (!IsSideTracking())
rc = bHorz ?
CRect(rcDock.left + 1, rc.top, rcDock.right - 1, rc.bottom) :
CRect(rc.left, rcDock.top + 1, rc.right, rcDock.bottom - 1);
BOOL bHorzTracking = m_htEdge == HTLEFT || m_htEdge == HTRIGHT;
int nOfs = m_nTrackPosOld - m_nTrackEdgeOfs;
nOfs -= bHorzTracking ? rc.CenterPoint().x : rc.CenterPoint().y;
rc.OffsetRect(bHorzTracking ? nOfs : 0, bHorzTracking ? 0 : nOfs);
rc.OffsetRect(-rcFrame.TopLeft());
CDC *pDC = m_pDockSite->GetDCEx(NULL,
DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
CBrush* pBrush = CDC::GetHalftoneBrush();
CBrush* pBrushOld = pDC->SelectObject(pBrush);
pDC->PatBlt(rc.left, rc.top, rc.Width(), rc.Height(), PATINVERT);
pDC->SelectObject(pBrushOld);
m_pDockSite->ReleaseDC(pDC);
}
BOOL CSizingControlBar::GetEdgeRect(CRect rcWnd, UINT nHitTest,
CRect& rcEdge)
{
rcEdge = rcWnd;
if (m_dwSCBStyle & SCBS_SHOWEDGES)
rcEdge.DeflateRect(1, 1);
BOOL bHorz = IsHorzDocked();
switch (nHitTest)
{
case HTLEFT:
if (!(m_dwSCBStyle & SCBS_EDGELEFT)) return FALSE;
rcEdge.right = rcEdge.left + m_cxEdge;
rcEdge.DeflateRect(0, bHorz ? m_cxEdge: 0);
break;
case HTTOP:
if (!(m_dwSCBStyle & SCBS_EDGETOP)) return FALSE;
rcEdge.bottom = rcEdge.top + m_cxEdge;
rcEdge.DeflateRect(bHorz ? 0 : m_cxEdge, 0);
break;
case HTRIGHT:
if (!(m_dwSCBStyle & SCBS_EDGERIGHT)) return FALSE;
rcEdge.left = rcEdge.right - m_cxEdge;
rcEdge.DeflateRect(0, bHorz ? m_cxEdge: 0);
break;
case HTBOTTOM:
if (!(m_dwSCBStyle & SCBS_EDGEBOTTOM)) return FALSE;
rcEdge.top = rcEdge.bottom - m_cxEdge;
rcEdge.DeflateRect(bHorz ? 0 : m_cxEdge, 0);
break;
default:
ASSERT(FALSE); // invalid hit test code
}
return TRUE;
}
UINT CSizingControlBar::GetEdgeHTCode(int nEdge)
{
if (nEdge == 0) return HTLEFT;
if (nEdge == 1) return HTTOP;
if (nEdge == 2) return HTRIGHT;
if (nEdge == 3) return HTBOTTOM;
ASSERT(FALSE); // invalid edge code
return HTNOWHERE;
}
void CSizingControlBar::GetRowInfo(int& nFirst, int& nLast, int& nThis)
{
ASSERT_VALID(m_pDockBar); // verify bounds
nThis = m_pDockBar->FindBar(this);
ASSERT(nThis != -1);
int i, nBars = m_pDockBar->m_arrBars.GetSize();
// find the first and the last bar in row
for (nFirst = -1, i = nThis - 1; i >= 0 && nFirst == -1; i--)
if (m_pDockBar->m_arrBars[i] == NULL)
nFirst = i + 1;
for (nLast = -1, i = nThis + 1; i < nBars && nLast == -1; i++)
if (m_pDockBar->m_arrBars[i] == NULL)
nLast = i - 1;
ASSERT((nLast != -1) && (nFirst != -1));
}
void CSizingControlBar::GetRowSizingBars(CSCBArray& arrSCBars)
{
int nThis; // dummy
GetRowSizingBars(arrSCBars, nThis);
}
void CSizingControlBar::GetRowSizingBars(CSCBArray& arrSCBars, int& nThis)
{
arrSCBars.RemoveAll();
int nFirstT, nLastT, nThisT;
GetRowInfo(nFirstT, nLastT, nThisT);
nThis = -1;
for (int i = nFirstT; i <= nLastT; i++)
{
CSizingControlBar* pBar =
(CSizingControlBar*) m_pDockBar->m_arrBars[i];
if (HIWORD(pBar) == 0) continue; // placeholder
if (!pBar->IsVisible()) continue;
if (pBar->IsKindOf(RUNTIME_CLASS(CSizingControlBar)))
{
if (pBar == this)
nThis = arrSCBars.GetSize();
arrSCBars.Add(pBar);
}
}
}
BOOL CSizingControlBar::NegotiateSpace(int nLengthTotal, BOOL bHorz)
{
ASSERT(bHorz == IsHorzDocked());
int nFirst, nLast, nThis;
GetRowInfo(nFirst, nLast, nThis);
int nLengthAvail = nLengthTotal;
int nLengthActual = 0;
int nLengthMin = 2;
int nWidthMax = 0;
CSizingControlBar* pBar;
for (int i = nFirst; i <= nLast; i++)
{
pBar = (CSizingControlBar*) m_pDockBar->m_arrBars[i];
if (HIWORD(pBar) == 0) continue; // placeholder
if (!pBar->IsVisible()) continue;
BOOL bIsSizingBar =
pBar->IsKindOf(RUNTIME_CLASS(CSizingControlBar));
int nLengthBar; // minimum length of the bar
if (bIsSizingBar)
nLengthBar = bHorz ? pBar->m_szMinHorz.cx - 2 :
pBar->m_szMinVert.cy - 2;
else
{
CRect rcBar;
pBar->GetWindowRect(&rcBar);
nLengthBar = bHorz ? rcBar.Width() - 2 : rcBar.Height() - 2;
}
nLengthMin += nLengthBar;
if (nLengthMin > nLengthTotal)
{
// split the row after fixed bar
if (i < nThis)
{
m_pDockBar->m_arrBars.InsertAt(i + 1,
(CControlBar*) NULL);
return FALSE;
}
// only this sizebar remains on the row, adjust it to minsize
if (i == nThis)
{
if (bHorz)
m_szHorz.cx = m_szMinHorz.cx;
else
m_szVert.cy = m_szMinVert.cy;
return TRUE; // the dockbar will split the row for us
}
// we have enough bars - go negotiate with them
m_pDockBar->m_arrBars.InsertAt(i, (CControlBar*) NULL);
nLast = i - 1;
break;
}
if (bIsSizingBar)
{
nLengthActual += bHorz ? pBar->m_szHorz.cx - 2 :
pBar->m_szVert.cy - 2;
nWidthMax = max(nWidthMax, bHorz ? pBar->m_szHorz.cy :
pBar->m_szVert.cx);
}
else
nLengthAvail -= nLengthBar;
}
CSCBArray arrSCBars;
GetRowSizingBars(arrSCBars);
int nNumBars = arrSCBars.GetSize();
int nDelta = nLengthAvail - nLengthActual;
// return faster when there is only one sizing bar per row (this one)
if (nNumBars == 1)
{
ASSERT(arrSCBars[0] == this);
if (nDelta == 0)
return TRUE;
m_bKeepSize = FALSE;
(bHorz ? m_szHorz.cx : m_szVert.cy) += nDelta;
return TRUE;
}
// make all the bars the same width
for (i = 0; i < nNumBars; i++)
if (bHorz)
arrSCBars[i]->m_szHorz.cy = nWidthMax;
else
arrSCBars[i]->m_szVert.cx = nWidthMax;
// distribute the difference between the bars,
// but don't shrink them below their minsizes
while (nDelta != 0)
{
int nDeltaOld = nDelta;
for (i = 0; i < nNumBars; i++)
{
pBar = arrSCBars[i];
int nLMin = bHorz ?
pBar->m_szMinHorz.cx : pBar->m_szMinVert.cy;
int nL = bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy;
if ((nL == nLMin) && (nDelta < 0) || // already at min length
pBar->m_bKeepSize) // or wants to keep its size
continue;
// sign of nDelta
int nDelta2 = (nDelta == 0) ? 0 : ((nDelta < 0) ? -1 : 1);
(bHorz ? pBar->m_szHorz.cx : pBar->m_szVert.cy) += nDelta2;
nDelta -= nDelta2;
if (nDelta == 0) break;
}
// clear m_bKeepSize flags
if ((nDeltaOld == nDelta) || (nDelta == 0))
for (i = 0; i < nNumBars; i++)
arrSCBars[i]->m_bKeepSize = FALSE;
}
return TRUE;
}
void CSizingControlBar::AlignControlBars()
{
int nFirst, nLast, nThis;
GetRowInfo(nFirst, nLast, nThis);
BOOL bHorz = IsHorzDocked();
BOOL bNeedRecalc = FALSE;