ReactOS Development > Doxygen

00001 /*
00002  * PROJECT:     PAINT for ReactOS
00003  * LICENSE:     LGPL
00004  * FILE:        sizebox.c
00005  * PURPOSE:     Window procedure of the size boxes
00006  * PROGRAMMERS: Benedikt Freisen
00007  */
00008 
00009 /* INCLUDES *********************************************************/
00010 
00011 #include "precomp.h"
00012 
00013 /* FUNCTIONS ********************************************************/
00014 
00015 BOOL resizing = FALSE;
00016 short xOrig;
00017 short yOrig;
00018 
00019 LRESULT CALLBACK
00020 SizeboxWinProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
00021 {
00022     switch (message)
00023     {
00024         case WM_SETCURSOR:
00025             if ((hwnd == hSizeboxLeftTop) || (hwnd == hSizeboxRightBottom))
00026                 SetCursor(LoadCursor(NULL, IDC_SIZENWSE));
00027             if ((hwnd == hSizeboxLeftBottom) || (hwnd == hSizeboxRightTop))
00028                 SetCursor(LoadCursor(NULL, IDC_SIZENESW));
00029             if ((hwnd == hSizeboxLeftCenter) || (hwnd == hSizeboxRightCenter))
00030                 SetCursor(LoadCursor(NULL, IDC_SIZEWE));
00031             if ((hwnd == hSizeboxCenterTop) || (hwnd == hSizeboxCenterBottom))
00032                 SetCursor(LoadCursor(NULL, IDC_SIZENS));
00033             break;
00034         case WM_LBUTTONDOWN:
00035             resizing = TRUE;
00036             xOrig = LOWORD(lParam);
00037             yOrig = HIWORD(lParam);
00038             SetCapture(hwnd);
00039             break;
00040         case WM_MOUSEMOVE:
00041             if (resizing)
00042             {
00043                 TCHAR sizeStr[100];
00044                 short xRel;
00045                 short yRel;
00046                 xRel = ((short)LOWORD(lParam) - xOrig) * 1000 / zoom;
00047                 yRel = ((short)HIWORD(lParam) - yOrig) * 1000 / zoom;
00048                 if (hwnd == hSizeboxLeftTop)
00049                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes - yRel);
00050                 if (hwnd == hSizeboxCenterTop)
00051                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes - yRel);
00052                 if (hwnd == hSizeboxRightTop)
00053                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes - yRel);
00054                 if (hwnd == hSizeboxLeftCenter)
00055                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes);
00056                 if (hwnd == hSizeboxRightCenter)
00057                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes);
00058                 if (hwnd == hSizeboxLeftBottom)
00059                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes + yRel);
00060                 if (hwnd == hSizeboxCenterBottom)
00061                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes + yRel);
00062                 if (hwnd == hSizeboxRightBottom)
00063                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes + yRel);
00064                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) sizeStr);
00065             }
00066             break;
00067         case WM_LBUTTONUP:
00068             if (resizing)
00069             {
00070                 short xRel;
00071                 short yRel;
00072                 ReleaseCapture();
00073                 resizing = FALSE;
00074                 xRel = ((short)LOWORD(lParam) - xOrig) * 1000 / zoom;
00075                 yRel = ((short)HIWORD(lParam) - yOrig) * 1000 / zoom;
00076                 if (hwnd == hSizeboxLeftTop)
00077                     cropReversible(imgXRes - xRel, imgYRes - yRel, xRel, yRel);
00078                 if (hwnd == hSizeboxCenterTop)
00079                     cropReversible(imgXRes, imgYRes - yRel, 0, yRel);
00080                 if (hwnd == hSizeboxRightTop)
00081                     cropReversible(imgXRes + xRel, imgYRes - yRel, 0, yRel);
00082                 if (hwnd == hSizeboxLeftCenter)
00083                     cropReversible(imgXRes - xRel, imgYRes, xRel, 0);
00084                 if (hwnd == hSizeboxRightCenter)
00085                     cropReversible(imgXRes + xRel, imgYRes, 0, 0);
00086                 if (hwnd == hSizeboxLeftBottom)
00087                     cropReversible(imgXRes - xRel, imgYRes + yRel, xRel, 0);
00088                 if (hwnd == hSizeboxCenterBottom)
00089                     cropReversible(imgXRes, imgYRes + yRel, 0, 0);
00090                 if (hwnd == hSizeboxRightBottom)
00091                     cropReversible(imgXRes + xRel, imgYRes + yRel, 0, 0);
00092                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) _T(""));
00093             }
00094             break;
00095 
00096         default:
00097             return DefWindowProc(hwnd, message, wParam, lParam);
00098     }
00099 
00100     return 0;
00101 }
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