utils/wxPython/demo/wxGLCanvas.py

   1
   2 from wxPython.wx       import *
   3 try:
   4     from wxPython.glcanvas import *
   5     haveGLCanvas = true
   6 except ImportError:
   7     haveGLCanvas = false
   8
   9 #----------------------------------------------------------------------
  10
  11 if not haveGLCanvas:
  12     def runTest(frame, nb, log):
  13         dlg = wxMessageDialog(frame, 'The wxGLCanvas has not been included with this build of wxPython!',
  14                           'Sorry', wxOK | wxICON_INFORMATION)
  15         dlg.ShowModal()
  16         dlg.Destroy()
  17
  18 else:
  19
  20
  21     def runTest(frame, nb, log):
  22         #win = TestGLCanvas(nb)
  23         #win.SetFocus()
  24         #return win
  25         win = wxFrame(frame, -1, "GL Cube", wxDefaultPosition, wxSize(400,300))
  26         canvas = TestGLCanvas(win)
  27         frame.otherWin = win
  28         win.Show(true)
  29         return None
  30
  31
  32
  33     class TestGLCanvas(wxGLCanvas):
  34         def __init__(self, parent):
  35             wxGLCanvas.__init__(self, parent, -1)
  36             EVT_ERASE_BACKGROUND(self, self.OnEraseBackground)
  37             self.init = false
  38             EVT_CHAR(self, self.MyOnChar)
  39
  40         def MyOnChar(self, event):
  41             print "MyOnChar"
  42
  43         def OnEraseBackground(self, event):
  44             pass # Do nothing, to avoid flashing.
  45
  46
  47         def OnSize(self, event):
  48             size = self.GetClientSize()
  49             if self.GetContext() != 'NULL':
  50                 self.SetCurrent()
  51                 glViewport(0, 0, size.width, size.height)
  52
  53
  54         def OnPaint(self, event):
  55             dc = wxPaintDC(self)
  56
  57             ctx = self.GetContext()
  58             if not ctx: return
  59
  60             self.SetCurrent()
  61
  62
  63             if not self.init:
  64                 self.InitGL()
  65                 self.init = true
  66
  67             # clear color and depth buffers
  68             glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  69
  70             # draw six faces of a cube
  71             glBegin(GL_QUADS)
  72             glNormal3f( 0.0, 0.0, 1.0)
  73             glVertex3f( 0.5, 0.5, 0.5)
  74             glVertex3f(-0.5, 0.5, 0.5)
  75             glVertex3f(-0.5,-0.5, 0.5)
  76             glVertex3f( 0.5,-0.5, 0.5)
  77
  78             glNormal3f( 0.0, 0.0,-1.0)
  79             glVertex3f(-0.5,-0.5,-0.5)
  80             glVertex3f(-0.5, 0.5,-0.5)
  81             glVertex3f( 0.5, 0.5,-0.5)
  82             glVertex3f( 0.5,-0.5,-0.5)
  83
  84             glNormal3f( 0.0, 1.0, 0.0)
  85             glVertex3f( 0.5, 0.5, 0.5)
  86             glVertex3f( 0.5, 0.5,-0.5)
  87             glVertex3f(-0.5, 0.5,-0.5)
  88             glVertex3f(-0.5, 0.5, 0.5)
  89
  90             glNormal3f( 0.0,-1.0, 0.0)
  91             glVertex3f(-0.5,-0.5,-0.5)
  92             glVertex3f( 0.5,-0.5,-0.5)
  93             glVertex3f( 0.5,-0.5, 0.5)
  94             glVertex3f(-0.5,-0.5, 0.5)
  95
  96             glNormal3f( 1.0, 0.0, 0.0)
  97             glVertex3f( 0.5, 0.5, 0.5)
  98             glVertex3f( 0.5,-0.5, 0.5)
  99             glVertex3f( 0.5,-0.5,-0.5)
 100             glVertex3f( 0.5, 0.5,-0.5)
 101
 102             glNormal3f(-1.0, 0.0, 0.0)
 103             glVertex3f(-0.5,-0.5,-0.5)
 104             glVertex3f(-0.5,-0.5, 0.5)
 105             glVertex3f(-0.5, 0.5, 0.5)
 106             glVertex3f(-0.5, 0.5,-0.5)
 107             glEnd()
 108
 109             self.SwapBuffers()
 110
 111
 112         def InitGL(self):
 113             # set viewing projection
 114             glMatrixMode(GL_PROJECTION);
 115             glFrustum(-0.5, 0.5, -0.5, 0.5, 1.0, 3.0);
 116
 117             # position viewer
 118             glMatrixMode(GL_MODELVIEW);
 119             glTranslatef(0.0, 0.0, -2.0);
 120
 121             # position object
 122             glRotatef(30.0, 1.0, 0.0, 0.0);
 123             glRotatef(30.0, 0.0, 1.0, 0.0);
 124
 125             glEnable(GL_DEPTH_TEST);
 126             glEnable(GL_LIGHTING);
 127             glEnable(GL_LIGHT0);
 128
 129
 130
 131
 132
 133 #----------------------------------------------------------------------
 134
 135
 136
 137
 138
 139
 140
 141
 142 overview = """\
 143 """
 144
 145
 146
 147
 148
 149 #----------------------------------------------------------------------
 150
 151 def _test():
 152     class MyApp(wxApp):
 153         def OnInit(self):
 154             frame = wxFrame(NULL, -1, "GL Cube", wxDefaultPosition, wxSize(400,300))
 155             win = TestGLCanvas(frame)
 156             frame.Show(TRUE)
 157             self.SetTopWindow(frame)
 158             return TRUE
 159
 160     app = MyApp(0)
 161     app.MainLoop()
 162
 163 if __name__ == '__main__':
 164     _test()