wxWidgets/wxPython/tests/test_gc.py
2006-10-31 00:59:32 +00:00

102 lines
2.4 KiB
Python

import wx
class TestPanel(wx.Panel):
def __init__(self, *args, **kw):
wx.Panel.__init__(self, *args, **kw)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def OnPaint(self, evt):
gc = wx.GraphicsContext.Create(wx.PaintDC(self))
pen = wx.Pen("navy", 2)
gc.SetPen(pen)
brush = wx.Brush((255,32,32,128))
gc.SetBrush(brush)
gc.PushState()
path = gc.CreatePath()
path.MoveToPoint(50, 50)
path.AddLineToPoint(25,25)
path.AddLineToPoint(50,25)
path.AddLineToPoint(50,50)
path.CloseSubpath()
gc.DrawPath(path)
gc.Scale(2,2)
gc.Translate(10,5)
gc.DrawPath(path)
gc.Translate(50,0)
gc.FillPath(path)
gc.Translate(0,5)
gc.StrokePath(path)
gc.Translate(0,5)
brush = wx.Brush((32,32,255,128))
gc.SetBrush(brush)
gc.FillPath(path)
gc.Translate(50,0)
gc.DrawPath(path)
gc.PopState()
points = [ (5.2, 5.9),
(50, 50),
(35, 50),
(25,40),
wx.Point2D(20.5,50.9),
wx.Point2D(5,25),
(5,6)
]
gc.Translate(0, 150)
gc.DrawLines(points)
gc.Translate(75, 0)
gc.StrokeLines(points)
begin = [ (0,0),
(0,10),
(0,20),
(0,30),
(0,40),
(0,50),
]
end = [ (50,0),
(50,10),
(50,20),
(50,30),
(50,40),
(50,50),
]
# in a floating point coordinate system the center of the
# pixel is actually at x+0.5, y+0.5, so with anti-aliasing
# turned on we'll get a crisper line by positioning our line
# segments at the 0.5 offset. For this test we'll just let
# the GC do the translation for us.
gc.Translate(0.5, 0.5)
pen = wx.Pen("purple", 1)
gc.SetPen(pen)
gc.Translate(75, 0)
gc.StrokeLineSegements(begin, end)
gc.Translate(75, 0)
gc.Scale(2,2)
gc.StrokeLineSegements(begin, end)
gc.DrawLines(points)
del path
app = wx.App(False)
frm = wx.Frame(None)
pnl = TestPanel(frm)
frm.Show()
app.MainLoop()