The wxPython tutorial

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The Graphics Device Interfacehttp://www.zetcode.com/wxpython/gdi/#!/usr/bin/python# line2.pyimport wxclass Line(wx.Frame):def __init__(self, parent, id, title):wx.Frame.__init__(self, parent, id, title, size=(250, 150))self.Bind(wx.EVT_PAINT, self.OnPaint)self.Centre()self.Show(True)def OnPaint(self, event):dc = wx.PaintDC(self)dc.DrawLine(50, 60, 190, 60)app = wx.App()Line(None, -1, 'Line')app.MainLoop()self.Bind(wx.EVT_PAINT, self.OnPaint)Here we bind the OnPaint method to the wx.PaintEvent event.It means, that each time our window is repainted, we call theOnPaint method. Now the line will not disappear, if we resizeour window (cover it, maximize it).dc = wx.PaintDC(self)Notice, that this time we have used the wx.PaintDC devicecontext.Figure: drawing a line4 de 44 27/04/2008 1:08
The Graphics Device Interfacehttp://www.zetcode.com/wxpython/gdi/2D Vector GraphicsThere are two different computer graphics. Vector and rastergraphics. Raster graphics represents images as a collection ofpixels. Vector graphics is the use of geometrical primitivessuch as points, lines, curves or polygons to represent images.These primitives are created using mathematical equations.Both types of computer graphics have advantages anddisadvantages. The advantages of vector graphics over rasterare:smaller sizeability to zoom indefinitelymoving, scaling, filling or rotating does not degrade thequality of an imageTypes of primitivespointslinespolylinespolygonscirclesellipsesSplinesDevice context attributesAttribute Object Default value Get MethodBrush wx.Brush wx.WHITE_BRUSH wx.Brush GetBrush()Pen wx.Pen wx.BLACK_PEN wx.Pen GetPen()Mapping Mode - wx.MM_TEXT int GetMapMode()BackgroundMode - wx.TRANSPARENTText backgroundcolourText foregroundcolourwx.Colourwx.Colourwx.WHITEwx.BLACKintGetBackgroundMode()wx.ColourGetTextBackground()wx.ColourGetTextForeground()B A S I C E L E M E N T S5 de 44 27/04/2008 1:08
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The wxPython tutorialhttp://www.zet
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Introduction to wxPythonhttp://www.
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http://www.zetcode.com/wxpython/fir
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Menus and Toolbars in wxPythonhttp:
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Layout management in wxPythonhttp:/
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Events in wxPythonhttp://www.zetcod
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wxPython dialogshttp://www.zetcode.
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wxPython widgetshttp://www.zetcode.
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Advanced widgetshttp://www.zetcode.
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wxPython griptshttp://www.zetcode.c
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The Tetris game in wxPythonhttp://w
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