research/transmission_spectroscopy/TOF/Win32++/WCE samples/Scribble/MainFrm.cpp

   1 #include "MainFrm.h"\r
   2 #include "resource.h"\r
   3 \r
   4 \r
   5 \r
   6 CMainFrame::CMainFrame() : m_PenColor(RGB(0,0,0))\r
   7 {\r
   8         // Set the Resource IDs for the toolbar buttons\r
   9         AddToolBarButton( 0 );                  // Separator\r
  10         AddToolBarButton( IDM_RED  );\r
  11         AddToolBarButton( IDM_BLUE );\r
  12         AddToolBarButton( IDM_GREEN );\r
  13         AddToolBarButton( IDM_BLACK );\r
  14 }\r
  15 \r
  16 void CMainFrame::DrawLine(short x, short y)\r
  17 {\r
  18         CDC* pDC = GetDC();\r
  19         pDC->CreatePen(PS_SOLID, 1, m_points.back().color);\r
  20         pDC->MoveTo(m_points.back().x, m_points.back().y);\r
  21         pDC->LineTo(x, y);\r
  22 }\r
  23 \r
  24 BOOL CMainFrame::OnCommand(WPARAM wParam, LPARAM /*lParam*/)\r
  25 {\r
  26         // Respond to menu and toolbar selections\r
  27         switch (LOWORD(wParam))\r
  28         {\r
  29         // Respond to menu items\r
  30         case IDM_NEW:\r
  31                 m_points.clear();\r
  32                 Invalidate();\r
  33                 return TRUE;\r
  34         case IDM_HELP_ABOUT:\r
  35                 {\r
  36                         CDialog HelpDialog(IDW_ABOUT, this);\r
  37                         HelpDialog.DoModal();\r
  38                 }\r
  39                 return TRUE;\r
  40 \r
  41         // Respond to ToolBar buttons\r
  42         case IDM_RED:\r
  43                 m_PenColor = RGB(255, 0, 0);\r
  44                 TRACE(_T("Red Pen Selected \n"));\r
  45                 return TRUE;\r
  46         case IDM_BLUE:\r
  47                 m_PenColor = RGB(0, 0, 255);\r
  48                 TRACE(_T("Blue Pen Selected \n"));\r
  49                 return TRUE;\r
  50         case IDM_GREEN:\r
  51                 m_PenColor = RGB(0, 191, 0);\r
  52                 TRACE(_T("Green Pen Selected \n"));\r
  53                 return TRUE;\r
  54         case IDM_BLACK:\r
  55                 m_PenColor = RGB(0, 0, 0);\r
  56                 TRACE(_T("Black Pen Selected \n"));\r
  57                 return TRUE;\r
  58 \r
  59         // Respond to the accelerator key\r
  60         case IDW_QUIT:\r
  61                 SendMessage(WM_CLOSE, 0L, 0L);\r
  62                 return TRUE; \r
  63         } \r
  64 \r
  65         return FALSE;\r
  66 }\r
  67 \r
  68 void CMainFrame::OnDraw(CDC* pDC)\r
  69 {\r
  70         // Redraw our client area\r
  71         if (m_points.size() > 0)\r
  72         {\r
  73                 bool bDraw = false;  //Start with the pen up\r
  74                 for (unsigned int i = 0 ; i < m_points.size(); i++)\r
  75                 {\r
  76                         pDC->CreatePen(PS_SOLID, 1, m_points[i].color);\r
  77                         if (bDraw)\r
  78                                 pDC->LineTo(m_points[i].x, m_points[i].y);\r
  79                         else\r
  80                                 pDC->MoveTo(m_points[i].x, m_points[i].y);\r
  81                         \r
  82                         bDraw = m_points[i].PenDown;\r
  83                 }\r
  84         }\r
  85 }\r
  86 \r
  87 void CMainFrame::OnInitialUpdate()\r
  88 {\r
  89         // Startup code goes here\r
  90 }\r
  91 \r
  92 void CMainFrame::OnLButtonDown(WPARAM /*wParam*/, LPARAM lParam)\r
  93 {\r
  94         // Capture mouse input.\r
  95         SetCapture();\r
  96 \r
  97         StorePoint(LOWORD(lParam), HIWORD(lParam), true);\r
  98 }\r
  99 \r
 100 void CMainFrame::OnLButtonUp(WPARAM /*wParam*/, LPARAM lParam)\r
 101 {\r
 102         //Release the capture on the mouse\r
 103         ReleaseCapture();\r
 104 \r
 105         StorePoint(LOWORD(lParam), HIWORD(lParam), false);\r
 106 }\r
 107 \r
 108 void CMainFrame::OnMouseMove(WPARAM wParam, LPARAM lParam)\r
 109 {\r
 110         // hold down the left mouse button and move mouse to draw lines.\r
 111         if (wParam & MK_LBUTTON)\r
 112         {       \r
 113                 TCHAR str[80];\r
 114                 ::wsprintf(str, TEXT("Draw Point:  %hd, %hd\n"), LOWORD(lParam), HIWORD(lParam));\r
 115                 TRACE(str);\r
 116 \r
 117                 DrawLine(LOWORD(lParam), HIWORD(lParam));\r
 118                 StorePoint(LOWORD(lParam), HIWORD(lParam), true);\r
 119         }\r
 120 }\r
 121 \r
 122 void CMainFrame::SetPen(COLORREF color)\r
 123 {\r
 124         m_PenColor = color;\r
 125 }\r
 126 \r
 127 void CMainFrame::StorePoint(int x, int y, bool PenDown)\r
 128 {\r
 129         PlotPoint P1;\r
 130         P1.x = x;\r
 131         P1.y = y;\r
 132         P1.PenDown = PenDown;\r
 133         P1.color = m_PenColor;\r
 134 \r
 135         m_points.push_back(P1); //Add the point to the vector\r
 136 }\r
 137 \r
 138 LRESULT CMainFrame::WndProc(UINT uMsg, WPARAM wParam, LPARAM lParam)\r
 139 {\r
 140         // handle left mouse button up/down and mouse move messages\r
 141         // a seperate function for each case keeps the code tidy.\r
 142         switch (uMsg)\r
 143         {\r
 144         case WM_LBUTTONDOWN:\r
 145                 OnLButtonDown(wParam, lParam);\r
 146                 break;\r
 147 \r
 148         case WM_MOUSEMOVE:\r
 149                 OnMouseMove(wParam, lParam);\r
 150         break;\r
 151 \r
 152     case WM_LBUTTONUP:\r
 153                 OnLButtonUp(wParam, lParam);\r
 154                 break;\r
 155         }\r
 156 \r
 157         // Pass unhandled messages on to WndProcDefault\r
 158         return WndProcDefault(uMsg, wParam, lParam);\r
 159 }\r
 160 \r
 161 \r