72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
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import wx
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METHOD = 1
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SCALE = 0.5
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class TestPanel(wx.Panel):
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"""
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Shows some ways to scale text down
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"""
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def __init__(self, *args, **kw):
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wx.Panel.__init__(self, *args, **kw)
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self.Bind(wx.EVT_PAINT, self.OnPaint)
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def OnPaint(self, evt):
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pdc = wx.PaintDC(self)
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font = wx.FFont(28, wx.SWISS)
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pdc.SetFont(font)
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txt = "Here is some text"
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# draw the original unscaled text
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pdc.DrawText(txt, 10, 10)
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if METHOD == 0:
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# Create a new font that is scaled
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points = font.GetPointSize() * SCALE
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font.SetPointSize(points)
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pdc.SetFont(font)
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pdc.DrawText(txt, 10, 100)
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if METHOD == 1:
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# Draw to a bitmap and scale that
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w,h = pdc.GetTextExtent(txt)
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bmp = wx.EmptyBitmap(w, h)
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mdc = wx.MemoryDC(bmp)
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mdc.SetBackground(wx.Brush(self.GetBackgroundColour()))
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mdc.Clear()
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mdc.SetFont(font)
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mdc.DrawText(txt, 0,0)
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del mdc
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image = bmp.ConvertToImage()
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image = image.Scale(w*SCALE, h*SCALE, wx.IMAGE_QUALITY_HIGH)
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bmp = wx.BitmapFromImage(image)
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bmp.SetMaskColour(self.GetBackgroundColour())
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pdc.DrawBitmap(bmp, 10,100)
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elif METHOD == 2:
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# Just scale the DC and draw the text again
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pdc.SetUserScale(SCALE, SCALE)
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pdc.DrawText(txt, 10/SCALE, 100/SCALE)
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elif METHOD == 3:
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# Use a GraphicsContext for scaling. Since it uses a
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# floating point coordinate system, it can be more
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# accurate.
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gc = wx.GraphicsContext.Create(pdc)
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gc.Scale(SCALE, SCALE)
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gc.SetFont(font)
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gc.DrawText(txt, 10/SCALE, 100/SCALE)
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app = wx.App()
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frm = wx.Frame(None, title="test_scaleText")
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pnl = TestPanel(frm)
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frm.Show()
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app.MainLoop()
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