Merge recent changes from 2.8 branch.

[wxWidgets.git] / wxPython / tests / test_scaleText.py

diff --git a/wxPython/tests/test_scaleText.py b/wxPython/tests/test_scaleText.py
new file mode 100644 (file)
index 0000000..1c55829
--- /dev/null
+++ b/wxPython/tests/test_scaleText.py
@@ -0,0 +1,71 @@
+import wx
+
+METHOD = 1
+SCALE  = 0.5
+
+class TestPanel(wx.Panel):
+    """
+    Shows some ways to scale text down
+    """
+    def __init__(self, *args, **kw):
+        wx.Panel.__init__(self, *args, **kw)
+        self.Bind(wx.EVT_PAINT, self.OnPaint)
+
+    def OnPaint(self, evt):
+        pdc = wx.PaintDC(self)
+        font = wx.FFont(28, wx.SWISS)
+        pdc.SetFont(font)
+        txt = "Here is some text"
+        
+        # draw the original unscaled text
+        pdc.DrawText(txt, 10, 10)
+
+        if METHOD == 0:
+            # Create a new font that is scaled
+            points = font.GetPointSize() * SCALE
+            font.SetPointSize(points)
+            pdc.SetFont(font)
+            pdc.DrawText(txt, 10, 100)
+
+        if METHOD == 1:
+            # Draw to a bitmap and scale that
+            w,h = pdc.GetTextExtent(txt)
+            bmp = wx.EmptyBitmap(w, h)
+            mdc = wx.MemoryDC(bmp)
+            mdc.SetBackground(wx.Brush(self.GetBackgroundColour()))
+            mdc.Clear()
+            mdc.SetFont(font)
+            mdc.DrawText(txt, 0,0)
+            del mdc
+
+            image = bmp.ConvertToImage()
+            image = image.Scale(w*SCALE, h*SCALE, wx.IMAGE_QUALITY_HIGH)
+            bmp = wx.BitmapFromImage(image)
+            bmp.SetMaskColour(self.GetBackgroundColour())
+            
+            pdc.DrawBitmap(bmp, 10,100)
+            
+
+        elif METHOD == 2:
+            # Just scale the DC and draw the text again
+            pdc.SetUserScale(SCALE, SCALE)
+            pdc.DrawText(txt, 10/SCALE, 100/SCALE)
+            
+
+        elif METHOD == 3:
+            # Use a GraphicsContext for scaling.  Since it uses a
+            # floating point coordinate system, it can be more
+            # accurate.
+            gc = wx.GraphicsContext.Create(pdc)
+            gc.Scale(SCALE, SCALE)
+            gc.SetFont(font)
+            gc.DrawText(txt, 10/SCALE, 100/SCALE)
+            
+
+
+app = wx.App()
+frm = wx.Frame(None, title="test_scaleText")
+pnl = TestPanel(frm)
+frm.Show()
+app.MainLoop()
+