reactos/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 #include "sizebox.h"
  13
  14 /* FUNCTIONS ********************************************************/
  15
  16 BOOL resizing = FALSE;
  17 short xOrig;
  18 short yOrig;
  19
  20 void
  21 RegisterWclSizebox()
  22 {
  23     WNDCLASSEX wclSizebox;
  24     /* initializing and registering the window class for the size boxes */
  25     wclSizebox.hInstance       = hProgInstance;
  26     wclSizebox.lpszClassName   = _T("Sizebox");
  27     wclSizebox.lpfnWndProc     = SizeboxWinProc;
  28     wclSizebox.style           = CS_DBLCLKS;
  29     wclSizebox.cbSize          = sizeof(WNDCLASSEX);
  30     wclSizebox.hIcon           = NULL;
  31     wclSizebox.hIconSm         = NULL;
  32     wclSizebox.hCursor         = LoadCursor(NULL, IDC_ARROW);
  33     wclSizebox.lpszMenuName    = NULL;
  34     wclSizebox.cbClsExtra      = 0;
  35     wclSizebox.cbWndExtra      = 0;
  36     wclSizebox.hbrBackground   = GetSysColorBrush(COLOR_HIGHLIGHT);
  37     RegisterClassEx (&wclSizebox);
  38 }
  39
  40 LRESULT CALLBACK
  41 SizeboxWinProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
  42 {
  43     switch (message)
  44     {
  45         case WM_SETCURSOR:
  46             if ((hwnd == hSizeboxLeftTop) || (hwnd == hSizeboxRightBottom))
  47                 SetCursor(LoadCursor(NULL, IDC_SIZENWSE));
  48             if ((hwnd == hSizeboxLeftBottom) || (hwnd == hSizeboxRightTop))
  49                 SetCursor(LoadCursor(NULL, IDC_SIZENESW));
  50             if ((hwnd == hSizeboxLeftCenter) || (hwnd == hSizeboxRightCenter))
  51                 SetCursor(LoadCursor(NULL, IDC_SIZEWE));
  52             if ((hwnd == hSizeboxCenterTop) || (hwnd == hSizeboxCenterBottom))
  53                 SetCursor(LoadCursor(NULL, IDC_SIZENS));
  54             break;
  55         case WM_LBUTTONDOWN:
  56             resizing = TRUE;
  57             xOrig = GET_X_LPARAM(lParam);
  58             yOrig = GET_Y_LPARAM(lParam);
  59             SetCapture(hwnd);
  60             break;
  61         case WM_MOUSEMOVE:
  62             if (resizing)
  63             {
  64                 TCHAR sizeStr[100];
  65                 short xRel;
  66                 short yRel;
  67                 xRel = (GET_X_LPARAM(lParam) - xOrig) * 1000 / zoom;
  68                 yRel = (GET_Y_LPARAM(lParam) - yOrig) * 1000 / zoom;
  69                 if (hwnd == hSizeboxLeftTop)
  70                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes - yRel);
  71                 if (hwnd == hSizeboxCenterTop)
  72                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes - yRel);
  73                 if (hwnd == hSizeboxRightTop)
  74                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes - yRel);
  75                 if (hwnd == hSizeboxLeftCenter)
  76                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes);
  77                 if (hwnd == hSizeboxRightCenter)
  78                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes);
  79                 if (hwnd == hSizeboxLeftBottom)
  80                     _stprintf(sizeStr, _T("%d x %d"), imgXRes - xRel, imgYRes + yRel);
  81                 if (hwnd == hSizeboxCenterBottom)
  82                     _stprintf(sizeStr, _T("%d x %d"), imgXRes, imgYRes + yRel);
  83                 if (hwnd == hSizeboxRightBottom)
  84                     _stprintf(sizeStr, _T("%d x %d"), imgXRes + xRel, imgYRes + yRel);
  85                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) sizeStr);
  86             }
  87             break;
  88         case WM_LBUTTONUP:
  89             if (resizing)
  90             {
  91                 short xRel;
  92                 short yRel;
  93                 ReleaseCapture();
  94                 resizing = FALSE;
  95                 xRel = (GET_X_LPARAM(lParam) - xOrig) * 1000 / zoom;
  96                 yRel = (GET_Y_LPARAM(lParam) - yOrig) * 1000 / zoom;
  97                 if (hwnd == hSizeboxLeftTop)
  98                     cropReversible(imgXRes - xRel, imgYRes - yRel, xRel, yRel);
  99                 if (hwnd == hSizeboxCenterTop)
 100                     cropReversible(imgXRes, imgYRes - yRel, 0, yRel);
 101                 if (hwnd == hSizeboxRightTop)
 102                     cropReversible(imgXRes + xRel, imgYRes - yRel, 0, yRel);
 103                 if (hwnd == hSizeboxLeftCenter)
 104                     cropReversible(imgXRes - xRel, imgYRes, xRel, 0);
 105                 if (hwnd == hSizeboxRightCenter)
 106                     cropReversible(imgXRes + xRel, imgYRes, 0, 0);
 107                 if (hwnd == hSizeboxLeftBottom)
 108                     cropReversible(imgXRes - xRel, imgYRes + yRel, xRel, 0);
 109                 if (hwnd == hSizeboxCenterBottom)
 110                     cropReversible(imgXRes, imgYRes + yRel, 0, 0);
 111                 if (hwnd == hSizeboxRightBottom)
 112                     cropReversible(imgXRes + xRel, imgYRes + yRel, 0, 0);
 113                 SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) _T(""));
 114             }
 115             break;
 116
 117         default:
 118             return DefWindowProc(hwnd, message, wParam, lParam);
 119     }
 120
 121     return 0;
 122 }