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|
import wx
import sys
try:
from wx import glcanvas
haveGLCanvas = True
except ImportError:
haveGLCanvas = False
try:
# The Python OpenGL package can be found at
# http://PyOpenGL.sourceforge.net/
from OpenGL.GL import *
from OpenGL.GLUT import *
haveOpenGL = True
except ImportError:
haveOpenGL = False
#----------------------------------------------------------------------
buttonDefs = {
wx.NewId() : ('CubeCanvas', 'Cube'),
wx.NewId() : ('ConeCanvas', 'Cone'),
}
class ButtonPanel(wx.Panel):
def __init__(self, parent, log):
wx.Panel.__init__(self, parent, -1)
self.log = log
box = wx.BoxSizer(wx.VERTICAL)
box.Add((20, 30))
keys = buttonDefs.keys()
keys.sort()
for k in keys:
text = buttonDefs[k][1]
btn = wx.Button(self, k, text)
box.Add(btn, 0, wx.ALIGN_CENTER|wx.ALL, 15)
self.Bind(wx.EVT_BUTTON, self.OnButton, btn)
#** Enable this to show putting a GLCanvas on the wx.Panel
if 1:
c = CubeCanvas(self)
c.SetMinSize((200, 200))
box.Add(c, 0, wx.ALIGN_CENTER|wx.ALL, 15)
self.SetAutoLayout(True)
self.SetSizer(box)
def OnButton(self, evt):
if not haveGLCanvas:
dlg = wx.MessageDialog(self,
'The GLCanvas class has not been included with this build of wxPython!',
'Sorry', wx.OK | wx.ICON_WARNING)
dlg.ShowModal()
dlg.Destroy()
elif not haveOpenGL:
dlg = wx.MessageDialog(self,
'The OpenGL package was not found. You can get it at\n'
'http://PyOpenGL.sourceforge.net/',
'Sorry', wx.OK | wx.ICON_WARNING)
dlg.ShowModal()
dlg.Destroy()
else:
canvasClassName = buttonDefs[evt.GetId()][0]
canvasClass = eval(canvasClassName)
frame = wx.Frame(None, -1, canvasClassName, size=(400,400))
canvas = canvasClass(frame)
frame.Show(True)
class MyCanvasBase(glcanvas.GLCanvas):
def __init__(self, parent):
glcanvas.GLCanvas.__init__(self, parent, -1)
self.init = False
self.context = glcanvas.GLContext(self)
# initial mouse position
self.lastx = self.x = 30
self.lasty = self.y = 30
self.size = None
self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_LEFT_DOWN, self.OnMouseDown)
self.Bind(wx.EVT_LEFT_UP, self.OnMouseUp)
self.Bind(wx.EVT_MOTION, self.OnMouseMotion)
def OnEraseBackground(self, event):
pass # Do nothing, to avoid flashing on MSW.
def OnSize(self, event):
wx.CallAfter(self.DoSetViewport)
event.Skip()
def DoSetViewport(self):
size = self.size = self.GetClientSize()
self.SetCurrent(self.context)
glViewport(0, 0, size.width, size.height)
def OnPaint(self, event):
dc = wx.PaintDC(self)
self.SetCurrent(self.context)
if not self.init:
self.InitGL()
self.init = True
self.OnDraw()
def OnMouseDown(self, evt):
self.CaptureMouse()
self.x, self.y = self.lastx, self.lasty = evt.GetPosition()
def OnMouseUp(self, evt):
self.ReleaseMouse()
def OnMouseMotion(self, evt):
if evt.Dragging() and evt.LeftIsDown():
self.lastx, self.lasty = self.x, self.y
self.x, self.y = evt.GetPosition()
self.Refresh(False)
class CubeCanvas(MyCanvasBase):
def InitGL(self):
# set viewing projection
glMatrixMode(GL_PROJECTION)
glFrustum(-0.5, 0.5, -0.5, 0.5, 1.0, 3.0)
# position viewer
glMatrixMode(GL_MODELVIEW)
glTranslatef(0.0, 0.0, -2.0)
# position object
glRotatef(self.y, 1.0, 0.0, 0.0)
glRotatef(self.x, 0.0, 1.0, 0.0)
glEnable(GL_DEPTH_TEST)
glEnable(GL_LIGHTING)
glEnable(GL_LIGHT0)
def OnDraw(self):
# clear color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# draw six faces of a cube
glBegin(GL_QUADS)
glNormal3f( 0.0, 0.0, 1.0)
glVertex3f( 0.5, 0.5, 0.5)
glVertex3f(-0.5, 0.5, 0.5)
glVertex3f(-0.5,-0.5, 0.5)
glVertex3f( 0.5,-0.5, 0.5)
glNormal3f( 0.0, 0.0,-1.0)
glVertex3f(-0.5,-0.5,-0.5)
glVertex3f(-0.5, 0.5,-0.5)
glVertex3f( 0.5, 0.5,-0.5)
glVertex3f( 0.5,-0.5,-0.5)
glNormal3f( 0.0, 1.0, 0.0)
glVertex3f( 0.5, 0.5, 0.5)
glVertex3f( 0.5, 0.5,-0.5)
glVertex3f(-0.5, 0.5,-0.5)
glVertex3f(-0.5, 0.5, 0.5)
glNormal3f( 0.0,-1.0, 0.0)
glVertex3f(-0.5,-0.5,-0.5)
glVertex3f( 0.5,-0.5,-0.5)
glVertex3f( 0.5,-0.5, 0.5)
glVertex3f(-0.5,-0.5, 0.5)
glNormal3f( 1.0, 0.0, 0.0)
glVertex3f( 0.5, 0.5, 0.5)
glVertex3f( 0.5,-0.5, 0.5)
glVertex3f( 0.5,-0.5,-0.5)
glVertex3f( 0.5, 0.5,-0.5)
glNormal3f(-1.0, 0.0, 0.0)
glVertex3f(-0.5,-0.5,-0.5)
glVertex3f(-0.5,-0.5, 0.5)
glVertex3f(-0.5, 0.5, 0.5)
glVertex3f(-0.5, 0.5,-0.5)
glEnd()
if self.size is None:
self.size = self.GetClientSize()
w, h = self.size
w = max(w, 1.0)
h = max(h, 1.0)
xScale = 180.0 / w
yScale = 180.0 / h
glRotatef((self.y - self.lasty) * yScale, 1.0, 0.0, 0.0);
glRotatef((self.x - self.lastx) * xScale, 0.0, 1.0, 0.0);
self.SwapBuffers()
class ConeCanvas(MyCanvasBase):
def InitGL( self ):
glMatrixMode(GL_PROJECTION)
# camera frustrum setup
glFrustum(-0.5, 0.5, -0.5, 0.5, 1.0, 3.0)
glMaterial(GL_FRONT, GL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
glMaterial(GL_FRONT, GL_DIFFUSE, [0.8, 0.8, 0.8, 1.0])
glMaterial(GL_FRONT, GL_SPECULAR, [1.0, 0.0, 1.0, 1.0])
glMaterial(GL_FRONT, GL_SHININESS, 50.0)
glLight(GL_LIGHT0, GL_AMBIENT, [0.0, 1.0, 0.0, 1.0])
glLight(GL_LIGHT0, GL_DIFFUSE, [1.0, 1.0, 1.0, 1.0])
glLight(GL_LIGHT0, GL_SPECULAR, [1.0, 1.0, 1.0, 1.0])
glLight(GL_LIGHT0, GL_POSITION, [1.0, 1.0, 1.0, 0.0])
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
glEnable(GL_LIGHTING)
glEnable(GL_LIGHT0)
glDepthFunc(GL_LESS)
glEnable(GL_DEPTH_TEST)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# position viewer
glMatrixMode(GL_MODELVIEW)
# position viewer
glTranslatef(0.0, 0.0, -2.0);
#
glutInit(sys.argv)
def OnDraw(self):
# clear color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# use a fresh transformation matrix
glPushMatrix()
# position object
#glTranslate(0.0, 0.0, -2.0)
glRotate(30.0, 1.0, 0.0, 0.0)
glRotate(30.0, 0.0, 1.0, 0.0)
glTranslate(0, -1, 0)
glRotate(250, 1, 0, 0)
glutSolidCone(0.5, 1, 30, 5)
glPopMatrix()
glRotatef((self.y - self.lasty), 0.0, 0.0, 1.0);
glRotatef((self.x - self.lastx), 1.0, 0.0, 0.0);
# push into visible buffer
self.SwapBuffers()
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = ButtonPanel(nb, log)
return win
overview = """\
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
#----------------------------------------------------------------------
|
