research/transmission_spectroscopy/TOF/Win32++/samples/GDIPlus/src/GDIPlusView.cpp

   1 //////////////////////////////////////////////\r
   2 // GDIPlusView.cpp\r
   3 //  Definitions for the CGDIPlusView class\r
   4 \r
   5 #include "stdafx.h"\r
   6 #include "GDIPlusView.h"\r
   7 using namespace Gdiplus;\r
   8 \r
   9 CGDIPlusView::CGDIPlusView()\r
  10 {\r
  11         // Initialize GDI+.\r
  12         GdiplusStartupInput gdiplusStartupInput;\r
  13         GdiplusStartup(&m_gdiplusToken, &gdiplusStartupInput, NULL);\r
  14 }\r
  15 \r
  16 CGDIPlusView::~CGDIPlusView()\r
  17 {\r
  18         // Shutdown GDI+\r
  19         GdiplusShutdown(m_gdiplusToken);\r
  20 }\r
  21 \r
  22 void CGDIPlusView::DrawCappedLine(CDC* pDC) \r
  23 {\r
  24         Graphics graphics(*pDC);\r
  25         // Draw capped line, width 8\r
  26         Pen penCapped(Color(255, 0, 0, 255), 8);\r
  27         Status stat = penCapped.SetStartCap(LineCapArrowAnchor);\r
  28         stat = penCapped.SetEndCap(LineCapRoundAnchor);\r
  29         stat = graphics.DrawLine(&penCapped, 10, 175, 300, 175);\r
  30 }\r
  31 \r
  32 void CGDIPlusView::DrawGamaShapes(CDC* pDC)\r
  33 {\r
  34         Graphics graphics(*pDC);\r
  35 \r
  36         // Draw Plygons with Gama Corrections\r
  37         // Put the points of a polygon in an array.\r
  38         GraphicsPath pathGama;\r
  39         int yOffset = 200;\r
  40         Point points[] = {Point(75,  0  +yOffset), Point(100, 50+yOffset), \r
  41                                           Point(150, 50 +yOffset), Point(112, 75+yOffset),\r
  42                                           Point(150, 150+yOffset), Point(75,  100+yOffset), \r
  43                                           Point(0,   150+yOffset), Point(37,  75+yOffset), \r
  44                                           Point(0,   50 +yOffset), Point(50,  50+yOffset)};\r
  45 \r
  46         // Use the array of points to construct a path.\r
  47         pathGama.AddLines(points, 10);\r
  48 \r
  49         // Use the path to construct a path gradient brush.\r
  50         PathGradientBrush pthGrBrushGama(&pathGama);\r
  51 \r
  52         // Set the color at the center of the path to red.\r
  53         pthGrBrushGama.SetCenterColor(Color(255, 255, 0, 0));\r
  54 \r
  55         // Set the colors of the points in the array.\r
  56         Color colorsGama[] = {Color(255, 0, 0, 0),   Color(255, 0, 255, 0),\r
  57                                           Color(255, 0, 0, 255), Color(255, 255, 255, 255), \r
  58                                           Color(255, 0, 0, 0),   Color(255, 0, 255, 0), \r
  59                                           Color(255, 0, 0, 255), Color(255, 255, 255, 255),\r
  60                                           Color(255, 0, 0, 0),   Color(255, 0, 255, 0)};\r
  61 \r
  62         int count = 10;\r
  63         pthGrBrushGama.SetSurroundColors(colorsGama, &count);\r
  64 \r
  65         // Fill the path with the path gradient brush.\r
  66         graphics.FillPath(&pthGrBrushGama, &pathGama);\r
  67         pthGrBrushGama.SetGammaCorrection(TRUE);\r
  68         graphics.TranslateTransform(200.0f, 0.0f);\r
  69         graphics.FillPath(&pthGrBrushGama, &pathGama);\r
  70 }\r
  71 \r
  72 void CGDIPlusView::DrawGradientElipse(CDC* pDC)\r
  73 {\r
  74         Graphics graphics(*pDC);\r
  75 \r
  76         // Create a path that consists of a single ellipse.\r
  77         GraphicsPath path;\r
  78         path.AddEllipse(0, 80, 140, 70);\r
  79 \r
  80         // Use the path to construct a brush.\r
  81         PathGradientBrush pthGrBrush(&path);\r
  82 \r
  83         // Set the color at the center of the path to blue.\r
  84         pthGrBrush.SetCenterColor(Color(255, 0, 0, 255));\r
  85 \r
  86         // Set the color along the entire boundary of the path to aqua.\r
  87         Color colors[] = {Color(255, 0, 255, 255)};\r
  88         int count = 1;\r
  89         pthGrBrush.SetSurroundColors(colors, &count);\r
  90 \r
  91         graphics.FillEllipse(&pthGrBrush, 0, 80, 140, 70);\r
  92 }\r
  93 \r
  94 void CGDIPlusView::DrawSolidElipse(CDC* pDC)\r
  95 {\r
  96         Graphics graphics(*pDC);\r
  97 \r
  98         SolidBrush solidBrush(Color(255, 255, 0, 0));\r
  99         graphics.FillEllipse(&solidBrush, 160, 84, 100, 60);\r
 100 }\r
 101 \r
 102 void CGDIPlusView::DrawSolidLine(CDC* pDC) \r
 103 {\r
 104         Graphics graphics(*pDC);\r
 105         \r
 106         // Draw solid line\r
 107         Pen      penLine(Color(255, 0, 0, 255));\r
 108         graphics.DrawLine(&penLine, 10, 70, 200, 70);\r
 109 }\r
 110 \r
 111 void CGDIPlusView::DrawText(CDC* pDC) \r
 112 {\r
 113         Graphics graphics(*pDC);\r
 114 \r
 115         // Draw some text\r
 116         SolidBrush  brush(Color(255, 0, 0, 255));\r
 117         FontFamily  fontFamily(L"Times New Roman");\r
 118         Font        font(&fontFamily, 24, FontStyleRegular, UnitPixel);\r
 119         PointF      pointF(10.0f, 20.0f);\r
 120    \r
 121         graphics.DrawString(L"GDI+  Example", -1, &font, pointF, &brush);\r
 122 }\r
 123 \r
 124 void CGDIPlusView::OnDraw(CDC* pDC)\r
 125 {\r
 126         DrawSolidLine(pDC);\r
 127         DrawText(pDC);\r
 128         DrawCappedLine(pDC);\r
 129         DrawGradientElipse(pDC);\r
 130         DrawSolidElipse(pDC);\r
 131         DrawGamaShapes(pDC); \r
 132 }\r
 133 \r
 134 void CGDIPlusView::OnInitialUpdate()\r
 135 {\r
 136         // OnInitialUpdate is called immediately after the window is created\r
 137         TRACE(_T("View window created\n"));\r
 138 }\r
 139 \r
 140 void CGDIPlusView::PreCreate(CREATESTRUCT &cs)\r
 141 {\r
 142         // Here we set the defaults used by the create function for the view window\r
 143         // Preforming this is optional, but doing so allows us to\r
 144         // take more precise control over the window we create.\r
 145 \r
 146         // Set the extended style\r
 147         cs.dwExStyle = WS_EX_CLIENTEDGE;\r
 148 }\r
 149 \r
 150 void CGDIPlusView::RegisterClass(WNDCLASS &wc)\r
 151 {\r
 152         // Here we set the Window class parameters.\r
 153         // Preforming this is optional, but doing so allows us to\r
 154         // take more precise control over the type of window we create.\r
 155 \r
 156         // Set the Window Class name\r
 157         wc.lpszClassName = _T("View");\r
 158 \r
 159         // Set the class style (not to be confused with the window styles set in PreCreate)\r
 160         wc.style = CS_DBLCLKS;  // Generate left button double click messages\r
 161 }\r
 162 \r
 163 LRESULT CGDIPlusView::WndProc(UINT uMsg, WPARAM wParam, LPARAM lParam)\r
 164 {\r
 165 //      switch (uMsg)\r
 166 //      {\r
 167 \r
 168 //      }\r
 169 \r
 170         // pass unhandled messages on for default processing\r
 171         return WndProcDefault(uMsg, wParam, lParam);\r
 172 }\r
 173 \r