base/applications/mspaint/sizebox.c

   1 /*
   2  * PROJECT:     PAINT for ReactOS
   3  * LICENSE:     LGPL
   4  * FILE:        sizebox.c
   5  * PURPOSE:     Window procedure of the size boxes
   6  * PROGRAMMERS: Benedikt Freisen
   7  */
   8
   9 /* INCLUDES *********************************************************/
  10
  11 #include "precomp.h"
  12
  13 /* FUNCTIONS ********************************************************/
  14
  15 BOOL resizing = FALSE;
  16 short xOrig;
  17 short yOrig;
  18
  19 LRESULT CALLBACK
  20 SizeboxWinProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
  21 {
  22     switch (message)
  23     {
  24         case WM_SETCURSOR:
  25             if ((hwnd == hSizeboxLeftTop) || (hwnd == hSizeboxRightBottom))
  26                 SetCursor(LoadCursor(NULL, IDC_SIZENWSE));
  27             if ((hwnd == hSizeboxLeftBottom) || (hwnd == hSizeboxRightTop))
  28                 SetCursor(LoadCursor(NULL, IDC_SIZENESW));
  29             if ((hwnd == hSizeboxLeftCenter) || (hwnd == hSizeboxRightCenter))
  30                 SetCursor(LoadCursor(NULL, IDC_SIZEWE));
  31             if ((hwnd == hSizeboxCenterTop) || (hwnd == hSizeboxCenterBottom))
  32                 SetCursor(LoadCursor(NULL, IDC_SIZENS));
  33             break;
  34         case WM_LBUTTONDOWN:
  35             resizing = TRUE;
  36             xOrig = LOWORD(lParam);
  37             yOrig = HIWORD(lParam);
  38             SetCapture(hwnd);
  39             break;
  40         case WM_MOUSEMOVE:
  41             if (resizing)
  42             {
  43                 TCHAR sizeStr[100];
  44                 short xRel;
  45                 short yRel;
  46                 xRel = ((short)LOWORD(lParam) - xOrig) * 1000 / zoom;
  47                 yRel = ((short)HIWORD(lParam) - yOrig) * 1000 / zoom;
  48                 if (hwnd == hSizeboxLeftTop)
  49                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes - yRel);
  50                 if (hwnd == hSizeboxCenterTop)
  51                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes - yRel);
  52                 if (hwnd == hSizeboxRightTop)
  53                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes - yRel);
  54                 if (hwnd == hSizeboxLeftCenter)
  55                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes);
  56                 if (hwnd == hSizeboxRightCenter)
  57                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes);
  58                 if (hwnd == hSizeboxLeftBottom)
  59                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes + yRel);
  60                 if (hwnd == hSizeboxCenterBottom)
  61                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes + yRel);
  62                 if (hwnd == hSizeboxRightBottom)
  63                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes + yRel);
  64                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) sizeStr);
  65             }
  66             break;
  67         case WM_LBUTTONUP:
  68             if (resizing)
  69             {
  70                 short xRel;
  71                 short yRel;
  72                 ReleaseCapture();
  73                 resizing = FALSE;
  74                 xRel = ((short)LOWORD(lParam) - xOrig) * 1000 / zoom;
  75                 yRel = ((short)HIWORD(lParam) - yOrig) * 1000 / zoom;
  76                 if (hwnd == hSizeboxLeftTop)
  77                     cropReversible(imgXRes - xRel, imgYRes - yRel, xRel, yRel);
  78                 if (hwnd == hSizeboxCenterTop)
  79                     cropReversible(imgXRes, imgYRes - yRel, 0, yRel);
  80                 if (hwnd == hSizeboxRightTop)
  81                     cropReversible(imgXRes + xRel, imgYRes - yRel, 0, yRel);
  82                 if (hwnd == hSizeboxLeftCenter)
  83                     cropReversible(imgXRes - xRel, imgYRes, xRel, 0);
  84                 if (hwnd == hSizeboxRightCenter)
  85                     cropReversible(imgXRes + xRel, imgYRes, 0, 0);
  86                 if (hwnd == hSizeboxLeftBottom)
  87                     cropReversible(imgXRes - xRel, imgYRes + yRel, xRel, 0);
  88                 if (hwnd == hSizeboxCenterBottom)
  89                     cropReversible(imgXRes, imgYRes + yRel, 0, 0);
  90                 if (hwnd == hSizeboxRightBottom)
  91                     cropReversible(imgXRes + xRel, imgYRes + yRel, 0, 0);
  92                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) _T(""));
  93             }
  94             break;
  95
  96         default:
  97             return DefWindowProc(hwnd, message, wParam, lParam);
  98     }
  99
 100     return 0;
 101 }