1 // TortoiseIDiff - an image diff viewer in TortoiseSVN
3 // Copyright (C) 2006-2012 - TortoiseSVN
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License
7 // as published by the Free Software Foundation; either version 2
8 // of the License, or (at your option) any later version.
10 // This program is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software Foundation,
17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "PicWindow.h"
26 #pragma comment(lib, "Msimg32.lib")
27 #pragma comment(lib, "shell32.lib")
29 bool CPicWindow::RegisterAndCreateWindow(HWND hParent
)
33 // Fill in the window class structure with default parameters
34 wcx
.cbSize
= sizeof(WNDCLASSEX
);
35 wcx
.style
= CS_HREDRAW
| CS_VREDRAW
;
36 wcx
.lpfnWndProc
= CWindow::stWinMsgHandler
;
39 wcx
.hInstance
= hResource
;
40 wcx
.hCursor
= LoadCursor(NULL
, IDC_ARROW
);
41 wcx
.lpszClassName
= _T("TortoiseIDiffPicWindow");
42 wcx
.hIcon
= LoadIcon(hResource
, MAKEINTRESOURCE(IDI_TORTOISEIDIFF
));
43 wcx
.hbrBackground
= (HBRUSH
)(COLOR_WINDOW
+1);
44 wcx
.lpszMenuName
= MAKEINTRESOURCE(IDC_TORTOISEIDIFF
);
45 wcx
.hIconSm
= LoadIcon(wcx
.hInstance
, MAKEINTRESOURCE(IDI_TORTOISEIDIFF
));
47 if (CreateEx(WS_EX_ACCEPTFILES
| WS_EX_CLIENTEDGE
, WS_CHILD
| WS_HSCROLL
| WS_VSCROLL
| WS_VISIBLE
, hParent
))
49 ShowWindow(m_hwnd
, SW_SHOW
);
57 void CPicWindow::PositionTrackBar()
61 HWND slider
= m_AlphaSlider
.GetWindow();
62 if ((pSecondPic
)&&(m_blend
== BLEND_ALPHA
))
64 MoveWindow(slider
, 0, rc
.top
-4+SLIDER_WIDTH
, SLIDER_WIDTH
, rc
.bottom
-rc
.top
-SLIDER_WIDTH
+8, true);
65 ShowWindow(slider
, SW_SHOW
);
66 MoveWindow(hwndAlphaToggleBtn
, 0, rc
.top
-4, SLIDER_WIDTH
, SLIDER_WIDTH
, true);
67 ShowWindow(hwndAlphaToggleBtn
, SW_SHOW
);
71 ShowWindow(slider
, SW_HIDE
);
72 ShowWindow(hwndAlphaToggleBtn
, SW_HIDE
);
76 LRESULT CALLBACK
CPicWindow::WinMsgHandler(HWND hwnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
83 // create a slider control
85 ShowWindow(m_AlphaSlider
.GetWindow(), SW_HIDE
);
88 RECT rect
; // for client area coordinates
90 hwndTT
= CreateWindowEx(WS_EX_TOPMOST
,
93 WS_POPUP
| TTS_NOPREFIX
| TTS_ALWAYSTIP
,
110 SWP_NOMOVE
| SWP_NOSIZE
| SWP_NOACTIVATE
);
112 ::GetClientRect(hwnd
, &rect
);
114 ti
.cbSize
= sizeof(TOOLINFO
);
115 ti
.uFlags
= TTF_TRACK
| TTF_ABSOLUTE
;
117 ti
.hinst
= hResource
;
119 ti
.lpszText
= LPSTR_TEXTCALLBACK
;
120 // ToolTip control will cover the whole window
121 ti
.rect
.left
= rect
.left
;
122 ti
.rect
.top
= rect
.top
;
123 ti
.rect
.right
= rect
.right
;
124 ti
.rect
.bottom
= rect
.bottom
;
126 SendMessage(hwndTT
, TTM_ADDTOOL
, 0, (LPARAM
) (LPTOOLINFO
) &ti
);
127 SendMessage(hwndTT
, TTM_SETMAXTIPWIDTH
, 0, 600);
128 nHSecondScrollPos
= 0;
129 nVSecondScrollPos
= 0;
134 InvalidateRect(*this, NULL
, FALSE
);
147 if ((pSecondPic
)&&((HWND
)lParam
== m_AlphaSlider
.GetWindow()))
149 if (LOWORD(wParam
) == TB_THUMBTRACK
)
151 // while tracking, only redraw after 50 milliseconds
152 ::SetTimer(*this, TIMER_ALPHASLIDER
, 50, NULL
);
155 SetBlendAlpha(m_blend
, SendMessage(m_AlphaSlider
.GetWindow(), TBM_GETPOS
, 0, 0) / 16.0f
);
159 UINT nPos
= HIWORD(wParam
);
160 bool bForceUpdate
= false;
161 if (LOWORD(wParam
) == SB_THUMBTRACK
|| LOWORD(wParam
) == SB_THUMBPOSITION
)
163 // Get true 32-bit scroll position
165 si
.cbSize
= sizeof(SCROLLINFO
);
166 si
.fMask
= SIF_TRACKPOS
;
167 GetScrollInfo(*this, SB_VERT
, &si
);
172 OnVScroll(LOWORD(wParam
), nPos
);
173 if (bLinkedPositions
)
175 pTheOtherPic
->OnVScroll(LOWORD(wParam
), nPos
);
177 ::UpdateWindow(*pTheOtherPic
);
183 UINT nPos
= HIWORD(wParam
);
184 bool bForceUpdate
= false;
185 if (LOWORD(wParam
) == SB_THUMBTRACK
|| LOWORD(wParam
) == SB_THUMBPOSITION
)
187 // Get true 32-bit scroll position
189 si
.cbSize
= sizeof(SCROLLINFO
);
190 si
.fMask
= SIF_TRACKPOS
;
191 GetScrollInfo(*this, SB_VERT
, &si
);
196 OnHScroll(LOWORD(wParam
), nPos
);
197 if (bLinkedPositions
)
199 pTheOtherPic
->OnHScroll(LOWORD(wParam
), nPos
);
201 ::UpdateWindow(*pTheOtherPic
);
207 OnMouseWheel(GET_KEYSTATE_WPARAM(wParam
), GET_WHEEL_DELTA_WPARAM(wParam
));
209 pTheOtherPic
->OnMouseWheel(GET_KEYSTATE_WPARAM(wParam
), GET_WHEEL_DELTA_WPARAM(wParam
));
214 OnMouseWheel(GET_KEYSTATE_WPARAM(wParam
)|MK_SHIFT
, GET_WHEEL_DELTA_WPARAM(wParam
));
216 pTheOtherPic
->OnMouseWheel(GET_KEYSTATE_WPARAM(wParam
)|MK_SHIFT
, GET_WHEEL_DELTA_WPARAM(wParam
));
221 ptPanStart
.x
= GET_X_LPARAM(lParam
);
222 ptPanStart
.y
= GET_Y_LPARAM(lParam
);
223 startVScrollPos
= nVScrollPos
;
224 startHScrollPos
= nHScrollPos
;
225 startVSecondScrollPos
= nVSecondScrollPos
;
226 startHSecondScrollPos
= nHSecondScrollPos
;
237 SendMessage(hwndTT
, TTM_TRACKACTIVATE
, FALSE
, 0);
241 mevt
.cbSize
= sizeof(TRACKMOUSEEVENT
);
242 mevt
.dwFlags
= TME_LEAVE
;
243 mevt
.dwHoverTime
= HOVER_DEFAULT
;
244 mevt
.hwndTrack
= *this;
245 ::TrackMouseEvent(&mevt
);
246 POINT pt
= {((int)(short)LOWORD(lParam
)), ((int)(short)HIWORD(lParam
))};
247 if (pt
.y
< HEADER_HEIGHT
)
249 ClientToScreen(*this, &pt
);
250 if ((abs(m_lastTTPos
.x
- pt
.x
) > 20)||(abs(m_lastTTPos
.y
- pt
.y
) > 10))
255 SendMessage(hwndTT
, TTM_TRACKPOSITION
, 0, MAKELONG(pt
.x
, pt
.y
));
257 ti
.cbSize
= sizeof(TOOLINFO
);
260 SendMessage(hwndTT
, TTM_TRACKACTIVATE
, TRUE
, (LPARAM
)&ti
);
265 SendMessage(hwndTT
, TTM_TRACKACTIVATE
, FALSE
, 0);
269 if ((wParam
& MK_LBUTTON
) &&
270 (ptPanStart
.x
>= 0) &&
274 int xPos
= GET_X_LPARAM(lParam
);
275 int yPos
= GET_Y_LPARAM(lParam
);
277 if (wParam
& MK_CONTROL
)
279 nHSecondScrollPos
= startHSecondScrollPos
+ (ptPanStart
.x
- xPos
);
280 nVSecondScrollPos
= startVSecondScrollPos
+ (ptPanStart
.y
- yPos
);
282 else if (wParam
& MK_SHIFT
)
284 nHScrollPos
= startHScrollPos
+ (ptPanStart
.x
- xPos
);
285 nVScrollPos
= startVScrollPos
+ (ptPanStart
.y
- yPos
);
289 nHSecondScrollPos
= startHSecondScrollPos
+ (ptPanStart
.x
- xPos
);
290 nVSecondScrollPos
= startVSecondScrollPos
+ (ptPanStart
.y
- yPos
);
291 nHScrollPos
= startHScrollPos
+ (ptPanStart
.x
- xPos
);
292 nVScrollPos
= startVScrollPos
+ (ptPanStart
.y
- yPos
);
295 InvalidateRect(*this, NULL
, TRUE
);
297 if ((bLinkedPositions
)&&((wParam
& MK_SHIFT
)==0))
299 pTheOtherPic
->nHScrollPos
= nHScrollPos
;
300 pTheOtherPic
->nVScrollPos
= nVScrollPos
;
301 pTheOtherPic
->SetupScrollBars();
302 InvalidateRect(*pTheOtherPic
, NULL
, TRUE
);
303 UpdateWindow(*pTheOtherPic
);
310 // we show a hand cursor if the image can be dragged,
311 // and a hand-down cursor if the image is currently dragged
312 if ((*this == (HWND
)wParam
)&&(LOWORD(lParam
)==HTCLIENT
))
315 GetClientRect(&rect
);
316 LONG width
= picture
.m_Width
;
317 LONG height
= picture
.m_Height
;
320 width
= max(width
, pSecondPic
->m_Width
);
321 height
= max(height
, pSecondPic
->m_Height
);
324 if ((GetKeyState(VK_LBUTTON
)&0x8000)||(HIWORD(lParam
) == WM_LBUTTONDOWN
))
326 SetCursor(curHandDown
);
334 return DefWindowProc(hwnd
, uMsg
, wParam
, lParam
);
339 HDROP hDrop
= (HDROP
)wParam
;
340 TCHAR szFileName
[MAX_PATH
];
341 // we only use the first file dropped (if multiple files are dropped)
342 if (DragQueryFile(hDrop
, 0, szFileName
, _countof(szFileName
)))
344 SetPic(szFileName
, _T(""), bMainPic
);
346 InvalidateRect(*this, NULL
, TRUE
);
352 switch (LOWORD(wParam
))
357 if (bLinkedPositions
)
358 pTheOtherPic
->PrevImage();
365 if (bLinkedPositions
)
366 pTheOtherPic
->NextImage();
372 bPlaying
= !bPlaying
;
374 if (bLinkedPositions
)
375 pTheOtherPic
->Animate(bPlaying
);
379 case ALPHATOGGLEBUTTON_ID
:
381 WORD msg
= HIWORD(wParam
);
384 case BN_DOUBLECLICKED
:
386 SendMessage(hwndAlphaToggleBtn
, BM_SETSTATE
, 1, 0);
387 SetTimer(*this, ID_ALPHATOGGLETIMER
, 1000, NULL
);
391 KillTimer(*this, ID_ALPHATOGGLETIMER
);
400 m_blend
= BLEND_ALPHA
;
402 InvalidateRect(*this, NULL
, TRUE
);
409 InvalidateRect(*this, NULL
, TRUE
);
419 case ID_ANIMATIONTIMER
:
422 if (nCurrentFrame
> picture
.GetNumberOfFrames(0))
424 long delay
= picture
.SetActiveFrame(nCurrentFrame
);
425 delay
= max(100, delay
);
426 SetTimer(*this, ID_ANIMATIONTIMER
, delay
, NULL
);
427 InvalidateRect(*this, NULL
, FALSE
);
430 case TIMER_ALPHASLIDER
:
432 SetBlendAlpha(m_blend
, SendMessage(m_AlphaSlider
.GetWindow(), TBM_GETPOS
, 0, 0)/16.0f
);
433 KillTimer(*this, TIMER_ALPHASLIDER
);
436 case ID_ALPHATOGGLETIMER
:
446 LPNMHDR pNMHDR
= (LPNMHDR
)lParam
;
447 if (pNMHDR
->code
== TTN_GETDISPINFO
)
449 if (pNMHDR
->hwndFrom
== m_AlphaSlider
.GetWindow())
451 LPTOOLTIPTEXT lpttt
= (LPTOOLTIPTEXT
) lParam
;
452 lpttt
->hinst
= hResource
;
453 TCHAR stringbuf
[MAX_PATH
] = {0};
454 _stprintf_s(stringbuf
, _T("%i%% alpha"), (int)(SendMessage(m_AlphaSlider
.GetWindow(),TBM_GETPOS
,0,0)/16.0f
*100.0f
));
455 _tcscpy_s(lpttt
->lpszText
, 80, stringbuf
);
457 else if (pNMHDR
->idFrom
== (UINT_PTR
)hwndAlphaToggleBtn
)
459 _stprintf_s(m_wszTip
, (TCHAR
const *)ResString(hResource
, IDS_ALPHABUTTONTT
), (int)(SendMessage(m_AlphaSlider
.GetWindow(),TBM_GETPOS
,0,0)/16.0f
*100.0f
));
460 if (pNMHDR
->code
== TTN_NEEDTEXTW
)
462 NMTTDISPINFOW
* pTTTW
= (NMTTDISPINFOW
*)pNMHDR
;
463 pTTTW
->lpszText
= m_wszTip
;
467 NMTTDISPINFOA
* pTTTA
= (NMTTDISPINFOA
*)pNMHDR
;
468 pTTTA
->lpszText
= m_szTip
;
469 ::WideCharToMultiByte(CP_ACP
, 0, m_wszTip
, -1, m_szTip
, 8192, NULL
, NULL
);
474 BuildInfoString(m_wszTip
, _countof(m_wszTip
), true);
475 if (pNMHDR
->code
== TTN_NEEDTEXTW
)
477 NMTTDISPINFOW
* pTTTW
= (NMTTDISPINFOW
*)pNMHDR
;
478 pTTTW
->lpszText
= m_wszTip
;
482 NMTTDISPINFOA
* pTTTA
= (NMTTDISPINFOA
*)pNMHDR
;
483 pTTTA
->lpszText
= m_szTip
;
484 ::WideCharToMultiByte(CP_ACP
, 0, m_wszTip
, -1, m_szTip
, 8192, NULL
, NULL
);
495 bWindowClosed
= TRUE
;
498 return DefWindowProc(hwnd
, uMsg
, wParam
, lParam
);
504 void CPicWindow::NextImage()
507 if (nCurrentDimension
> picture
.GetNumberOfDimensions())
508 nCurrentDimension
= picture
.GetNumberOfDimensions();
510 if (nCurrentFrame
> picture
.GetNumberOfFrames(0))
511 nCurrentFrame
= picture
.GetNumberOfFrames(0);
512 picture
.SetActiveFrame(nCurrentFrame
>= nCurrentDimension
? nCurrentFrame
: nCurrentDimension
);
513 InvalidateRect(*this, NULL
, FALSE
);
517 void CPicWindow::PrevImage()
520 if (nCurrentDimension
< 1)
521 nCurrentDimension
= 1;
523 if (nCurrentFrame
< 1)
525 picture
.SetActiveFrame(nCurrentFrame
>= nCurrentDimension
? nCurrentFrame
: nCurrentDimension
);
526 InvalidateRect(*this, NULL
, FALSE
);
530 void CPicWindow::Animate(bool bStart
)
534 SendMessage(hwndPlayBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hStop
);
535 SetTimer(*this, ID_ANIMATIONTIMER
, 0, NULL
);
539 SendMessage(hwndPlayBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hPlay
);
540 KillTimer(*this, ID_ANIMATIONTIMER
);
544 void CPicWindow::SetPic(tstring path
, tstring title
, bool bFirst
)
547 picpath
=path
;pictitle
=title
;
548 picture
.SetInterpolationMode(InterpolationModeHighQualityBicubic
);
549 bValid
= picture
.Load(picpath
);
550 nDimensions
= picture
.GetNumberOfDimensions();
552 nFrames
= picture
.GetNumberOfFrames(0);
557 InvalidateRect(*this, NULL
, FALSE
);
561 void CPicWindow::DrawViewTitle(HDC hDC
, RECT
* rect
)
564 hFont
= CreateFont(-MulDiv(pSecondPic
? 8 : 10, GetDeviceCaps(hDC
, LOGPIXELSY
), 72), 0, 0, 0, FW_DONTCARE
, false, false, false, ANSI_CHARSET
, OUT_DEFAULT_PRECIS
, CLIP_DEFAULT_PRECIS
, CLEARTYPE_QUALITY
, DEFAULT_PITCH
, _T("MS Shell Dlg"));
565 HFONT hFontOld
= (HFONT
)SelectObject(hDC
, (HGDIOBJ
)hFont
);
568 textrect
.left
= rect
->left
;
569 textrect
.top
= rect
->top
;
570 textrect
.right
= rect
->right
;
571 textrect
.bottom
= rect
->top
+ HEADER_HEIGHT
;
572 if (HasMultipleImages())
573 textrect
.bottom
+= HEADER_HEIGHT
;
576 crBk
= ::GetSysColor(COLOR_SCROLLBAR
);
577 crFg
= ::GetSysColor(COLOR_WINDOWTEXT
);
578 SetBkColor(hDC
, crBk
);
579 ::ExtTextOut(hDC
, 0, 0, ETO_OPAQUE
, &textrect
, NULL
, 0, NULL
);
581 if (GetFocus() == *this)
582 DrawEdge(hDC
, &textrect
, EDGE_BUMP
, BF_RECT
);
584 DrawEdge(hDC
, &textrect
, EDGE_ETCHED
, BF_RECT
);
586 SetTextColor(hDC
, crFg
);
588 // use the path if no title is set.
589 tstring
* title
= pictitle
.empty() ? &picpath
: &pictitle
;
591 tstring realtitle
= *title
;
592 tstring imgnumstring
;
594 if (HasMultipleImages())
598 _stprintf_s(buf
, (const TCHAR
*)ResString(hResource
, IDS_DIMENSIONSANDFRAMES
), nCurrentFrame
, nFrames
);
600 _stprintf_s(buf
, (const TCHAR
*)ResString(hResource
, IDS_DIMENSIONSANDFRAMES
), nCurrentDimension
, nDimensions
);
605 if (GetTextExtentPoint32(hDC
, realtitle
.c_str(), (int)realtitle
.size(), &stringsize
))
607 int nStringLength
= stringsize
.cx
;
608 int texttop
= pSecondPic
? textrect
.top
+ (HEADER_HEIGHT
/2) - stringsize
.cy
: textrect
.top
+ (HEADER_HEIGHT
/2) - stringsize
.cy
/2;
610 max(textrect
.left
+ ((textrect
.right
-textrect
.left
)-nStringLength
)/2, 1),
615 (UINT
)realtitle
.size(),
619 realtitle
= (pictitle2
.empty() ? picpath2
: pictitle2
);
621 max(textrect
.left
+ ((textrect
.right
-textrect
.left
)-nStringLength
)/2, 1),
622 texttop
+ stringsize
.cy
,
626 (UINT
)realtitle
.size(),
630 if (HasMultipleImages())
632 if (GetTextExtentPoint32(hDC
, imgnumstring
.c_str(), (int)imgnumstring
.size(), &stringsize
))
634 int nStringLength
= stringsize
.cx
;
637 max(textrect
.left
+ ((textrect
.right
-textrect
.left
)-nStringLength
)/2, 1),
638 textrect
.top
+ HEADER_HEIGHT
+ (HEADER_HEIGHT
/2) - stringsize
.cy
/2,
641 imgnumstring
.c_str(),
642 (UINT
)imgnumstring
.size(),
646 SelectObject(hDC
, (HGDIOBJ
)hFontOld
);
650 void CPicWindow::SetupScrollBars()
653 GetClientRect(&rect
);
655 SCROLLINFO si
= {sizeof(si
)};
657 si
.fMask
= SIF_POS
| SIF_PAGE
| SIF_RANGE
| SIF_DISABLENOSCROLL
;
659 double width
= double(picture
.m_Width
)*picscale
;
660 double height
= double(picture
.m_Height
)*picscale
;
663 width
= max(width
, double(pSecondPic
->m_Width
)*pTheOtherPic
->GetZoom());
664 height
= max(height
, double(pSecondPic
->m_Height
)*pTheOtherPic
->GetZoom());
667 bool bShowHScrollBar
= (nHScrollPos
> 0); // left of pic is left of window
668 bShowHScrollBar
= bShowHScrollBar
|| (width
-nHScrollPos
> rect
.right
); // right of pic is outside right of window
669 bShowHScrollBar
= bShowHScrollBar
|| (width
+nHScrollPos
> rect
.right
); // right of pic is outside right of window
670 bool bShowVScrollBar
= (nVScrollPos
> 0); // top of pic is above window
671 bShowVScrollBar
= bShowVScrollBar
|| (height
-nVScrollPos
+rect
.top
> rect
.bottom
); // bottom of pic is below window
672 bShowVScrollBar
= bShowVScrollBar
|| (height
+nVScrollPos
+rect
.top
> rect
.bottom
); // bottom of pic is below window
674 // if the image is smaller than the window, we don't need the scrollbars
675 ShowScrollBar(*this, SB_HORZ
, bShowHScrollBar
);
676 ShowScrollBar(*this, SB_VERT
, bShowVScrollBar
);
680 si
.nPos
= nVScrollPos
;
681 si
.nPage
= rect
.bottom
-rect
.top
;
682 if (height
< rect
.bottom
-rect
.top
)
687 si
.nMax
= rect
.bottom
+nVScrollPos
-rect
.top
;
691 si
.nMin
= nVScrollPos
;
692 si
.nMax
= int(height
);
700 si
.nMax
= int(max(height
, rect
.bottom
+nVScrollPos
-rect
.top
));
705 si
.nMax
= int(height
-nVScrollPos
);
708 SetScrollInfo(*this, SB_VERT
, &si
, TRUE
);
713 si
.nPos
= nHScrollPos
;
714 si
.nPage
= rect
.right
-rect
.left
;
715 if (width
< rect
.right
-rect
.left
)
720 si
.nMax
= rect
.right
+nHScrollPos
-rect
.left
;
724 si
.nMin
= nHScrollPos
;
725 si
.nMax
= int(width
);
733 si
.nMax
= int(max(width
, rect
.right
+nHScrollPos
-rect
.left
));
738 si
.nMax
= int(width
-nHScrollPos
);
741 SetScrollInfo(*this, SB_HORZ
, &si
, TRUE
);
747 void CPicWindow::OnVScroll(UINT nSBCode
, UINT nPos
)
750 GetClientRect(&rect
);
755 nVScrollPos
= LONG(double(picture
.GetHeight())*picscale
);
767 nVScrollPos
+= (rect
.bottom
-rect
.top
);
770 nVScrollPos
-= (rect
.bottom
-rect
.top
);
772 case SB_THUMBPOSITION
:
781 LONG height
= LONG(double(picture
.GetHeight())*picscale
);
784 height
= max(height
, LONG(double(pSecondPic
->GetHeight())*picscale
));
785 nVSecondScrollPos
= nVScrollPos
;
789 InvalidateRect(*this, NULL
, TRUE
);
792 void CPicWindow::OnHScroll(UINT nSBCode
, UINT nPos
)
795 GetClientRect(&rect
);
800 nHScrollPos
= LONG(double(picture
.GetWidth())*picscale
);
812 nHScrollPos
+= (rect
.right
-rect
.left
);
815 nHScrollPos
-= (rect
.right
-rect
.left
);
817 case SB_THUMBPOSITION
:
826 LONG width
= LONG(double(picture
.GetWidth())*picscale
);
829 width
= max(width
, LONG(double(pSecondPic
->GetWidth())*picscale
));
830 nHSecondScrollPos
= nHScrollPos
;
834 InvalidateRect(*this, NULL
, TRUE
);
837 void CPicWindow::OnMouseWheel(short fwKeys
, short zDelta
)
840 GetClientRect(&rect
);
841 LONG width
= long(double(picture
.m_Width
)*picscale
);
842 LONG height
= long(double(picture
.m_Height
)*picscale
);
845 width
= max(width
, long(double(pSecondPic
->m_Width
)*picscale
));
846 height
= max(height
, long(double(pSecondPic
->m_Height
)*picscale
));
848 if ((fwKeys
& MK_SHIFT
)&&(fwKeys
& MK_CONTROL
)&&(pSecondPic
))
850 // ctrl+shift+wheel: change the alpha channel
851 float a
= blendAlpha
;
852 a
-= float(zDelta
)/120.0f
/4.0f
;
857 SetBlendAlpha(m_blend
, a
);
859 else if (fwKeys
& MK_SHIFT
)
861 // shift means scrolling sideways
862 OnHScroll(SB_THUMBPOSITION
, GetHPos()-zDelta
);
863 if ((bLinkedPositions
)&&(pTheOtherPic
))
865 pTheOtherPic
->OnHScroll(SB_THUMBPOSITION
, pTheOtherPic
->GetHPos()-zDelta
);
868 else if (fwKeys
& MK_CONTROL
)
870 // control means adjusting the scale factor
871 Zoom(zDelta
>0, true);
872 if ((bFitSizes
)&&(pTheOtherPic
)&&(!bOverlap
))
873 pTheOtherPic
->Zoom(zDelta
>0, true);
875 InvalidateRect(*this, NULL
, FALSE
);
876 SetWindowPos(*this, NULL
, 0, 0, 0, 0, SWP_FRAMECHANGED
|SWP_NOSIZE
|SWP_NOREPOSITION
|SWP_NOMOVE
);
880 OnVScroll(SB_THUMBPOSITION
, GetVPos()-zDelta
);
881 if ((bLinkedPositions
)&&(pTheOtherPic
))
883 pTheOtherPic
->OnVScroll(SB_THUMBPOSITION
, pTheOtherPic
->GetVPos()-zDelta
);
888 void CPicWindow::GetClientRect(RECT
* pRect
)
890 ::GetClientRect(*this, pRect
);
891 pRect
->top
+= HEADER_HEIGHT
;
892 if (HasMultipleImages())
894 pRect
->top
+= HEADER_HEIGHT
;
897 pRect
->left
+= SLIDER_WIDTH
;
900 void CPicWindow::GetClientRectWithScrollbars(RECT
* pRect
)
902 GetClientRect(pRect
);
903 ::GetWindowRect(*this, pRect
);
904 pRect
->right
= pRect
->right
-pRect
->left
;
905 pRect
->bottom
= pRect
->bottom
-pRect
->top
;
908 pRect
->top
+= HEADER_HEIGHT
;
909 if (HasMultipleImages())
911 pRect
->top
+= HEADER_HEIGHT
;
914 pRect
->left
+= SLIDER_WIDTH
;
918 void CPicWindow::SetZoom(double dZoom
, bool centermouse
)
920 // Set the interpolation mode depending on zoom
921 double oldPicscale
= picscale
;
922 double oldOtherPicscale
= picscale
;
924 { // Zoomed out, use high quality bicubic
925 picture
.SetInterpolationMode(InterpolationModeHighQualityBicubic
);
927 pSecondPic
->SetInterpolationMode(InterpolationModeHighQualityBicubic
);
929 else if (!((int)(dZoom
*100.0)%100))
930 { // "Even" zoom sizes should be shown w-o any interpolation
931 picture
.SetInterpolationMode(InterpolationModeNearestNeighbor
);
933 pSecondPic
->SetInterpolationMode(InterpolationModeNearestNeighbor
);
936 { // Arbitrary zoomed in, use bilinear that is semi-smoothed
937 picture
.SetInterpolationMode(InterpolationModeBilinear
);
939 pSecondPic
->SetInterpolationMode(InterpolationModeBilinear
);
943 if ((bFitSizes
)&&(bMainPic
))
945 double width
, height
;
946 double zoomWidth
, zoomHeight
;
947 width
= double(picture
.m_Width
)*dZoom
;
948 height
= double(picture
.m_Height
)*dZoom
;
949 zoomWidth
= width
/double(pTheOtherPic
->GetPic()->m_Width
);
950 zoomHeight
= height
/double(pTheOtherPic
->GetPic()->m_Height
);
951 oldOtherPicscale
= pTheOtherPic
->GetZoom();
952 pTheOtherPic
->SetZoom(min(zoomWidth
, zoomHeight
), false);
955 // adjust the scrollbar positions according to the new zoom and the
956 // mouse position: if possible, keep the pixel where the mouse pointer
957 // is at the same position after the zoom
959 DWORD ptW
= GetMessagePos();
960 cpos
.x
= GET_X_LPARAM(ptW
);
961 cpos
.y
= GET_Y_LPARAM(ptW
);
962 ScreenToClient(*this, &cpos
);
964 GetClientRect(&clientrect
);
965 if ((PtInRect(&clientrect
, cpos
))&&(centermouse
))
967 // the mouse pointer is over our window
968 nHScrollPos
= int(double(nHScrollPos
+ cpos
.x
)*(dZoom
/oldPicscale
))-cpos
.x
;
969 nVScrollPos
= int(double(nVScrollPos
+ cpos
.y
)*(dZoom
/oldPicscale
))-cpos
.y
;
970 if (pTheOtherPic
&& bMainPic
)
972 double otherzoom
= pTheOtherPic
->GetZoom();
973 nHSecondScrollPos
= int(double(nHSecondScrollPos
+ cpos
.x
)*(otherzoom
/oldOtherPicscale
))-cpos
.x
;
974 nVSecondScrollPos
= int(double(nVSecondScrollPos
+ cpos
.y
)*(otherzoom
/oldOtherPicscale
))-cpos
.y
;
979 nHScrollPos
= int(double(nHScrollPos
+ ((clientrect
.right
-clientrect
.left
)/2))*(dZoom
/oldPicscale
))-((clientrect
.right
-clientrect
.left
)/2);
980 nVScrollPos
= int(double(nVScrollPos
+ ((clientrect
.bottom
-clientrect
.top
)/2))*(dZoom
/oldPicscale
))-((clientrect
.bottom
-clientrect
.top
)/2);
981 if (pTheOtherPic
&& bMainPic
)
983 double otherzoom
= pTheOtherPic
->GetZoom();
984 nHSecondScrollPos
= int(double(nHSecondScrollPos
+ ((clientrect
.right
-clientrect
.left
)/2))*(otherzoom
/oldOtherPicscale
))-((clientrect
.right
-clientrect
.left
)/2);
985 nVSecondScrollPos
= int(double(nVSecondScrollPos
+ ((clientrect
.bottom
-clientrect
.top
)/2))*(otherzoom
/oldOtherPicscale
))-((clientrect
.bottom
-clientrect
.top
)/2);
991 InvalidateRect(*this, NULL
, TRUE
);
994 void CPicWindow::Zoom(bool in
, bool centermouse
)
998 // Find correct zoom factor and quantize picscale
999 if (!in
&& picscale
<= 0.2)
1004 else if ((in
&& picscale
< 1.0) || (!in
&& picscale
<= 1.0))
1006 picscale
= 0.1 * RoundDouble(picscale
/0.1, 0); // Quantize to 0.1
1009 else if ((in
&& picscale
< 2.0) || (!in
&& picscale
<= 2.0))
1011 picscale
= 0.25 * RoundDouble(picscale
/0.25, 0); // Quantize to 0.25
1016 picscale
= RoundDouble(picscale
,0);
1023 if ((pSecondPic
)&&(!bFitSizes
))
1024 pTheOtherPic
->SetZoom(pTheOtherPic
->GetZoom()+zoomFactor
, false);
1025 SetZoom(picscale
+zoomFactor
, centermouse
);
1029 if ((pSecondPic
)&&(!bFitSizes
))
1030 pTheOtherPic
->SetZoom(pTheOtherPic
->GetZoom()-zoomFactor
, false);
1031 SetZoom(picscale
-zoomFactor
, centermouse
);
1035 double CPicWindow::RoundDouble(double doValue
, int nPrecision
)
1037 static const double doBase
= 10.0;
1038 double doComplete5
, doComplete5i
;
1040 doComplete5
= doValue
* pow(doBase
, (double) (nPrecision
+ 1));
1051 doComplete5
/= doBase
;
1052 modf(doComplete5
, &doComplete5i
);
1054 return doComplete5i
/ pow(doBase
, (double) nPrecision
);
1056 void CPicWindow::FitImageInWindow()
1060 GetClientRectWithScrollbars(&rect
);
1062 if (rect
.right
-rect
.left
)
1065 if (((rect
.right
- rect
.left
) > picture
.m_Width
+2)&&((rect
.bottom
- rect
.top
)> picture
.m_Height
+2))
1067 // image is smaller than the window
1072 // image is bigger than the window
1073 double xscale
= double(rect
.right
-rect
.left
-2)/double(picture
.m_Width
);
1074 double yscale
= double(rect
.bottom
-rect
.top
-2)/double(picture
.m_Height
);
1075 dZoom
= min(yscale
, xscale
);
1079 if (((rect
.right
- rect
.left
) > pSecondPic
->m_Width
+2)&&((rect
.bottom
- rect
.top
)> pSecondPic
->m_Height
+2))
1081 // image is smaller than the window
1082 pTheOtherPic
->SetZoom(min(1.0, dZoom
), false);
1086 // image is bigger than the window
1087 double xscale
= double(rect
.right
-rect
.left
-2)/double(pSecondPic
->m_Width
);
1088 double yscale
= double(rect
.bottom
-rect
.top
-2)/double(pSecondPic
->m_Height
);
1089 pTheOtherPic
->SetZoom(min(yscale
, xscale
), false);
1091 nHSecondScrollPos
= 0;
1092 nVSecondScrollPos
= 0;
1094 SetZoom(dZoom
, false);
1098 InvalidateRect(*this, NULL
, TRUE
);
1101 void CPicWindow::CenterImage()
1104 GetClientRectWithScrollbars(&rect
);
1105 double width
= (double(picture
.m_Width
)*picscale
) + 2.0;
1106 double height
= (double(picture
.m_Height
)*picscale
) + 2.0;
1109 width
= max(width
, (double(pSecondPic
->m_Width
)*pTheOtherPic
->GetZoom()) + 2.0);
1110 height
= max(height
, (double(pSecondPic
->m_Height
)*pTheOtherPic
->GetZoom()) + 2.0);
1113 bool bPicWidthBigger
= (int(width
) > (rect
.right
-rect
.left
));
1114 bool bPicHeightBigger
= (int(height
) > (rect
.bottom
-rect
.top
));
1115 // set the scroll position so that the image is drawn centered in the window
1116 // if the window is bigger than the image
1117 if (!bPicWidthBigger
)
1119 nHScrollPos
= -((rect
.right
-rect
.left
+4)-int(width
))/2;
1120 nHSecondScrollPos
= nHScrollPos
;
1122 if (!bPicHeightBigger
)
1124 nVScrollPos
= -((rect
.bottom
-rect
.top
+4)-int(height
))/2;
1125 nVSecondScrollPos
= nVScrollPos
;
1130 void CPicWindow::FitSizes(bool bFit
)
1134 SetZoom(GetZoom(), false);
1137 void CPicWindow::ShowPicWithBorder(HDC hdc
, const RECT
&bounds
, CPicture
&pic
, double scale
)
1139 ::SetBkColor(hdc
, transparentColor
);
1140 ::ExtTextOut(hdc
, 0, 0, ETO_OPAQUE
, &bounds
, NULL
, 0, NULL
);
1143 picrect
.left
= bounds
.left
- nHScrollPos
;
1144 picrect
.top
= bounds
.top
- nVScrollPos
;
1145 if ((!bLinkedPositions
|| bOverlap
) && (pTheOtherPic
) && (&pic
!= &picture
))
1147 picrect
.left
= bounds
.left
- nHSecondScrollPos
;
1148 picrect
.top
= bounds
.top
- nVSecondScrollPos
;
1150 picrect
.right
= (picrect
.left
+ LONG(double(pic
.m_Width
) * scale
));
1151 picrect
.bottom
= (picrect
.top
+ LONG(double(pic
.m_Height
) * scale
));
1153 pic
.Show(hdc
, picrect
);
1156 border
.left
= picrect
.left
-1;
1157 border
.top
= picrect
.top
-1;
1158 border
.right
= picrect
.right
+1;
1159 border
.bottom
= picrect
.bottom
+1;
1161 HPEN hPen
= CreatePen(PS_SOLID
, 1, GetSysColor(COLOR_3DDKSHADOW
));
1162 HPEN hOldPen
= (HPEN
)SelectObject(hdc
, hPen
);
1163 MoveToEx(hdc
, border
.left
, border
.top
, NULL
);
1164 LineTo(hdc
, border
.left
, border
.bottom
);
1165 LineTo(hdc
, border
.right
, border
.bottom
);
1166 LineTo(hdc
, border
.right
, border
.top
);
1167 LineTo(hdc
, border
.left
, border
.top
);
1168 SelectObject(hdc
, hOldPen
);
1172 void CPicWindow::Paint(HWND hwnd
)
1176 RECT rect
, fullrect
;
1178 GetUpdateRect(hwnd
, &rect
, FALSE
);
1179 if (IsRectEmpty(&rect
))
1182 ::GetClientRect(*this, &fullrect
);
1183 hdc
= BeginPaint(hwnd
, &ps
);
1185 // Exclude the alpha control and button
1186 if ((pSecondPic
)&&(m_blend
== BLEND_ALPHA
))
1187 ExcludeClipRect(hdc
, 0, m_inforect
.top
-4, SLIDER_WIDTH
, m_inforect
.bottom
+4);
1189 CMyMemDC
memDC(hdc
);
1190 if ((pSecondPic
)&&(m_blend
!= BLEND_ALPHA
))
1192 // erase the place where the alpha slider would be
1193 ::SetBkColor(memDC
, transparentColor
);
1194 RECT bounds
= {0, m_inforect
.top
-4, SLIDER_WIDTH
, m_inforect
.bottom
+4};
1195 ::ExtTextOut(memDC
, 0, 0, ETO_OPAQUE
, &bounds
, NULL
, 0, NULL
);
1198 GetClientRect(&rect
);
1201 ShowPicWithBorder(memDC
, rect
, picture
, picscale
);
1204 HDC secondhdc
= CreateCompatibleDC(hdc
);
1205 HBITMAP hBitmap
= CreateCompatibleBitmap(hdc
, rect
.right
- rect
.left
, rect
.bottom
- rect
.top
);
1206 HBITMAP hOldBitmap
= (HBITMAP
)SelectObject(secondhdc
, hBitmap
);
1207 SetWindowOrgEx(secondhdc
, rect
.left
, rect
.top
, NULL
);
1209 if ((pSecondPic
)&&(m_blend
!= BLEND_ALPHA
))
1211 // erase the place where the alpha slider would be
1212 ::SetBkColor(secondhdc
, transparentColor
);
1213 RECT bounds
= {0, m_inforect
.top
-4, SLIDER_WIDTH
, m_inforect
.bottom
+4};
1214 ::ExtTextOut(secondhdc
, 0, 0, ETO_OPAQUE
, &bounds
, NULL
, 0, NULL
);
1216 ShowPicWithBorder(secondhdc
, rect
, *pSecondPic
, pTheOtherPic
->GetZoom());
1218 if (m_blend
== BLEND_ALPHA
)
1220 BLENDFUNCTION blender
;
1221 blender
.AlphaFormat
= 0;
1222 blender
.BlendFlags
= 0;
1223 blender
.BlendOp
= AC_SRC_OVER
;
1224 blender
.SourceConstantAlpha
= (BYTE
)(blendAlpha
*255);
1228 rect
.right
-rect
.left
,
1229 rect
.bottom
-rect
.top
,
1233 rect
.right
-rect
.left
,
1234 rect
.bottom
-rect
.top
,
1237 else if (m_blend
== BLEND_XOR
)
1242 rect
.right
-rect
.left
,
1243 rect
.bottom
-rect
.top
,
1247 //rect.right-rect.left,
1248 //rect.bottom-rect.top,
1250 InvertRect(memDC
, &rect
);
1252 SelectObject(secondhdc
, hOldBitmap
);
1253 DeleteObject(hBitmap
);
1254 DeleteDC(secondhdc
);
1256 int sliderwidth
= 0;
1257 if ((pSecondPic
)&&(m_blend
== BLEND_ALPHA
))
1258 sliderwidth
= SLIDER_WIDTH
;
1259 m_inforect
.left
= rect
.left
+4+sliderwidth
;
1260 m_inforect
.top
= rect
.top
;
1261 m_inforect
.right
= rect
.right
+sliderwidth
;
1262 m_inforect
.bottom
= rect
.bottom
;
1264 SetBkColor(memDC
, transparentColor
);
1267 TCHAR infostring
[8192];
1268 BuildInfoString(infostring
, _countof(infostring
), false);
1270 NONCLIENTMETRICS metrics
= {0};
1271 metrics
.cbSize
= sizeof(NONCLIENTMETRICS
);
1273 #if (WINVER >= 0x600)
1274 if (!SysInfo::Instance().IsVistaOrLater())
1276 metrics
.cbSize
-= sizeof(int); // subtract the size of the iPaddedBorderWidth member which is not available on XP
1280 SystemParametersInfo(SPI_GETNONCLIENTMETRICS
, 0, &metrics
, FALSE
);
1281 HFONT hFont
= CreateFontIndirect(&metrics
.lfStatusFont
);
1282 HFONT hFontOld
= (HFONT
)SelectObject(memDC
, (HGDIOBJ
)hFont
);
1283 // find out how big the rectangle for the text has to be
1284 DrawText(memDC
, infostring
, -1, &m_inforect
, DT_EDITCONTROL
| DT_EXPANDTABS
| DT_LEFT
| DT_VCENTER
| DT_CALCRECT
);
1286 // the text should be drawn with a four pixel offset to the window borders
1287 m_inforect
.top
= rect
.bottom
- (m_inforect
.bottom
-m_inforect
.top
) - 4;
1288 m_inforect
.bottom
= rect
.bottom
-4;
1290 // first draw an edge rectangle
1292 edgerect
.left
= m_inforect
.left
-4;
1293 edgerect
.top
= m_inforect
.top
-4;
1294 edgerect
.right
= m_inforect
.right
+4;
1295 edgerect
.bottom
= m_inforect
.bottom
+4;
1296 ::ExtTextOut(memDC
, 0, 0, ETO_OPAQUE
, &edgerect
, NULL
, 0, NULL
);
1297 DrawEdge(memDC
, &edgerect
, EDGE_BUMP
, BF_RECT
| BF_SOFT
);
1299 SetTextColor(memDC
, GetSysColor(COLOR_WINDOWTEXT
));
1300 DrawText(memDC
, infostring
, -1, &m_inforect
, DT_EDITCONTROL
| DT_EXPANDTABS
| DT_LEFT
| DT_VCENTER
);
1301 SelectObject(memDC
, (HGDIOBJ
)hFontOld
);
1302 DeleteObject(hFont
);
1307 SetBkColor(memDC
, ::GetSysColor(COLOR_WINDOW
));
1308 ::ExtTextOut(memDC
, 0, 0, ETO_OPAQUE
, &rect
, NULL
, 0, NULL
);
1310 ResString str
= ResString(hResource
, IDS_INVALIDIMAGEINFO
);
1313 NONCLIENTMETRICS metrics
= {0};
1314 metrics
.cbSize
= sizeof(NONCLIENTMETRICS
);
1315 #if (WINVER >= 0x600)
1316 if (!SysInfo::Instance().IsVistaOrLater())
1318 metrics
.cbSize
-= sizeof(int); // subtract the size of the iPaddedBorderWidth member which is not available on XP
1321 SystemParametersInfo(SPI_GETNONCLIENTMETRICS
, 0, &metrics
, FALSE
);
1322 HFONT hFont
= CreateFontIndirect(&metrics
.lfStatusFont
);
1323 HFONT hFontOld
= (HFONT
)SelectObject(memDC
, (HGDIOBJ
)hFont
);
1325 if (GetTextExtentPoint32(memDC
, str
, (int)_tcslen(str
), &stringsize
))
1327 int nStringLength
= stringsize
.cx
;
1330 max(rect
.left
+ ((rect
.right
-rect
.left
)-nStringLength
)/2, 1),
1331 rect
.top
+ ((rect
.bottom
-rect
.top
) - stringsize
.cy
)/2,
1338 SelectObject(memDC
, (HGDIOBJ
)hFontOld
);
1339 DeleteObject(hFont
);
1341 DrawViewTitle(memDC
, &fullrect
);
1343 EndPaint(hwnd
, &ps
);
1346 bool CPicWindow::CreateButtons()
1348 // Ensure that the common control DLL is loaded.
1349 INITCOMMONCONTROLSEX icex
;
1350 icex
.dwSize
= sizeof(INITCOMMONCONTROLSEX
);
1351 icex
.dwICC
= ICC_BAR_CLASSES
| ICC_WIN95_CLASSES
;
1352 InitCommonControlsEx(&icex
);
1354 hwndLeftBtn
= CreateWindowEx(0,
1357 WS_CHILD
| WS_VISIBLE
| BS_PUSHBUTTON
| BS_ICON
| BS_FLAT
,
1360 (HMENU
)LEFTBUTTON_ID
,
1363 if (hwndLeftBtn
== INVALID_HANDLE_VALUE
)
1365 hLeft
= (HICON
)LoadImage(hResource
, MAKEINTRESOURCE(IDI_BACKWARD
), IMAGE_ICON
, 16, 16, LR_LOADTRANSPARENT
);
1366 SendMessage(hwndLeftBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hLeft
);
1367 hwndRightBtn
= CreateWindowEx(0,
1370 WS_CHILD
| WS_VISIBLE
| BS_PUSHBUTTON
| BS_ICON
| BS_FLAT
,
1373 (HMENU
)RIGHTBUTTON_ID
,
1376 if (hwndRightBtn
== INVALID_HANDLE_VALUE
)
1378 hRight
= (HICON
)LoadImage(hResource
, MAKEINTRESOURCE(IDI_FORWARD
), IMAGE_ICON
, 16, 16, LR_LOADTRANSPARENT
);
1379 SendMessage(hwndRightBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hRight
);
1380 hwndPlayBtn
= CreateWindowEx(0,
1383 WS_CHILD
| WS_VISIBLE
| BS_PUSHBUTTON
| BS_ICON
| BS_FLAT
,
1386 (HMENU
)PLAYBUTTON_ID
,
1389 if (hwndPlayBtn
== INVALID_HANDLE_VALUE
)
1391 hPlay
= (HICON
)LoadImage(hResource
, MAKEINTRESOURCE(IDI_START
), IMAGE_ICON
, 16, 16, LR_LOADTRANSPARENT
);
1392 hStop
= (HICON
)LoadImage(hResource
, MAKEINTRESOURCE(IDI_STOP
), IMAGE_ICON
, 16, 16, LR_LOADTRANSPARENT
);
1393 SendMessage(hwndPlayBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hPlay
);
1394 hwndAlphaToggleBtn
= CreateWindowEx(0,
1397 WS_CHILD
| WS_VISIBLE
| BS_PUSHBUTTON
| BS_ICON
| BS_FLAT
| BS_NOTIFY
| BS_PUSHLIKE
,
1400 (HMENU
)ALPHATOGGLEBUTTON_ID
,
1403 if (hwndAlphaToggleBtn
== INVALID_HANDLE_VALUE
)
1405 hAlphaToggle
= (HICON
)LoadImage(hResource
, MAKEINTRESOURCE(IDI_ALPHATOGGLE
), IMAGE_ICON
, 16, 16, LR_LOADTRANSPARENT
);
1406 SendMessage(hwndAlphaToggleBtn
, BM_SETIMAGE
, (WPARAM
)IMAGE_ICON
, (LPARAM
)hAlphaToggle
);
1409 ti
.cbSize
= sizeof(TOOLINFO
);
1410 ti
.uFlags
= TTF_IDISHWND
|TTF_SUBCLASS
;
1412 ti
.hinst
= hResource
;
1413 ti
.uId
= (UINT_PTR
)hwndAlphaToggleBtn
;
1414 ti
.lpszText
= LPSTR_TEXTCALLBACK
;
1415 // ToolTip control will cover the whole window
1420 SendMessage(hwndTT
, TTM_ADDTOOL
, 0, (LPARAM
) (LPTOOLINFO
) &ti
);
1425 void CPicWindow::PositionChildren()
1428 ::GetClientRect(*this, &rect
);
1429 if (HasMultipleImages())
1431 SetWindowPos(hwndLeftBtn
, HWND_TOP
, rect
.left
+3, rect
.top
+ HEADER_HEIGHT
+ (HEADER_HEIGHT
-16)/2, 16, 16, SWP_FRAMECHANGED
|SWP_SHOWWINDOW
);
1432 SetWindowPos(hwndRightBtn
, HWND_TOP
, rect
.left
+23, rect
.top
+ HEADER_HEIGHT
+ (HEADER_HEIGHT
-16)/2, 16, 16, SWP_FRAMECHANGED
|SWP_SHOWWINDOW
);
1434 SetWindowPos(hwndPlayBtn
, HWND_TOP
, rect
.left
+43, rect
.top
+ HEADER_HEIGHT
+ (HEADER_HEIGHT
-16)/2, 16, 16, SWP_FRAMECHANGED
|SWP_SHOWWINDOW
);
1436 ShowWindow(hwndPlayBtn
, SW_HIDE
);
1440 ShowWindow(hwndLeftBtn
, SW_HIDE
);
1441 ShowWindow(hwndRightBtn
, SW_HIDE
);
1442 ShowWindow(hwndPlayBtn
, SW_HIDE
);
1447 bool CPicWindow::HasMultipleImages()
1449 return (((nDimensions
> 1)||(nFrames
> 1))&&(pSecondPic
== NULL
));
1452 void CPicWindow::CreateTrackbar(HWND hwndParent
)
1454 HWND hwndTrack
= CreateWindowEx(
1455 0, // no extended styles
1456 TRACKBAR_CLASS
, // class name
1457 _T("Trackbar Control"), // title (caption)
1458 WS_CHILD
| WS_VISIBLE
| TBS_VERT
| TBS_TOOLTIPS
| TBS_AUTOTICKS
, // style
1461 hwndParent
, // parent window
1462 (HMENU
)TRACKBAR_ID
, // control identifier
1464 NULL
// no WM_CREATE parameter
1467 SendMessage(hwndTrack
, TBM_SETRANGE
,
1468 (WPARAM
) TRUE
, // redraw flag
1469 (LPARAM
) MAKELONG(0, 16)); // min. & max. positions
1470 SendMessage(hwndTrack
, TBM_SETTIPSIDE
,
1474 m_AlphaSlider
.ConvertTrackbarToNice(hwndTrack
);
1477 void CPicWindow::BuildInfoString(TCHAR
* buf
, int size
, bool bTooltip
)
1479 // Unfortunately, we need two different strings for the tooltip
1480 // and the info box. Because the tooltips use a different tab size
1481 // than ExtTextOut(), and to keep the output aligned we therefore
1482 // need two different strings.
1483 // Note: some translations could end up with two identical strings, but
1484 // in English we need two - even if we wouldn't need two in English, some
1485 // translation might then need two again.
1488 _stprintf_s(buf
, size
,
1489 (TCHAR
const *)ResString(hResource
, bTooltip
? IDS_DUALIMAGEINFOTT
: IDS_DUALIMAGEINFO
),
1490 picture
.GetFileSizeAsText().c_str(), picture
.GetFileSizeAsText(false).c_str(),
1491 picture
.m_Width
, picture
.m_Height
,
1492 picture
.GetHorizontalResolution(), picture
.GetVerticalResolution(),
1493 picture
.m_ColorDepth
,
1494 (UINT
)(GetZoom()*100.0),
1495 pSecondPic
->GetFileSizeAsText().c_str(), pSecondPic
->GetFileSizeAsText(false).c_str(),
1496 pSecondPic
->m_Width
, pSecondPic
->m_Height
,
1497 pSecondPic
->GetHorizontalResolution(), pSecondPic
->GetVerticalResolution(),
1498 pSecondPic
->m_ColorDepth
,
1499 (UINT
)(pTheOtherPic
->GetZoom()*100.0));
1503 _stprintf_s(buf
, size
,
1504 (TCHAR
const *)ResString(hResource
, bTooltip
? IDS_IMAGEINFOTT
: IDS_IMAGEINFO
),
1505 picture
.GetFileSizeAsText().c_str(), picture
.GetFileSizeAsText(false).c_str(),
1506 picture
.m_Width
, picture
.m_Height
,
1507 picture
.GetHorizontalResolution(), picture
.GetVerticalResolution(),
1508 picture
.m_ColorDepth
,
1509 (UINT
)(GetZoom()*100.0));