attachment:PenAndBrushStyles.py of PenAndBrushStyles

   1 """
   2 PenAndBrushStyles.py
   3 
   4 Andrea Gavana
   5 2011-08-09
   6 
   7 https://groups.google.com/forum/#!topic/wxpython-users/ECgRONRxsmg
   8 """
   9 
  10 import os
  11 
  12 import wx
  13 
  14 from wx.lib.embeddedimage import PyEmbeddedImage
  15 
  16 #------------------------------------------------------------------------------
  17 
  18 class PenAndBrushFrame( wx.Frame ) :
  19 
  20     def __init__( self ) :
  21 
  22         wx.Frame.__init__( self, None, title="wx.Pen and wx.Brush Styles", size=(700, 600) )
  23         
  24         # Convert a wx.Bitmap to a wx.Icon and then display it as a Frame titlebar graphic.
  25         iconWxImage  = mondrian.GetBitmap().ConvertToImage().Rescale( 16, 16 )
  26         # There's no direct way to convert a wx.Bitmap or wx.Image to an wx.Icon.
  27         iconTmpFilename = './Mondrian.ico'
  28         iconWxImage.SaveFile( iconTmpFilename, wx.BITMAP_TYPE_ICO )
  29         icon = wx.Icon( iconTmpFilename, wx.BITMAP_TYPE_ICO )
  30         os.remove( iconTmpFilename )
  31         self.SetIcon( icon )
  32         
  33         #-----
  34         
  35         # Set a Panel into the Frame to standardize the look across all platform types.
  36         # Every visible control gets put on frmPanel.
  37         frmPanel = wx.Panel( self )
  38         frmPanel.SetBackgroundColour( (240, 240, 240) )     # eggshell white or "off-white"
  39 
  40         font = wx.SystemSettings.GetFont( wx.SYS_DEFAULT_GUI_FONT )
  41         font.SetWeight( wx.BOLD )
  42 
  43         frame_vSzr = wx.BoxSizer( wx.VERTICAL )
  44         
  45         penLabel = 'Pen Styles (os.name = %s) :' % (os.name)
  46         penLabel = wx.StaticText( frmPanel, -1, penLabel )
  47         penLabel.SetFont( font )
  48 
  49         frame_vSzr.Add( penLabel, 0, wx.EXPAND|wx.ALL, 10 )
  50         
  51         grdSzr_top = wx.GridSizer( 4, 4, 3, 3 )  # rows, cols, vgap, hgap
  52 
  53         for pen_name in pen_styles :
  54             small = PenPanel( frmPanel, pen_name )
  55             grdSzr_top.Add( small, 0, wx.EXPAND )
  56         #end for
  57         
  58         frame_vSzr.Add( grdSzr_top, 1, wx.EXPAND|wx.LEFT|wx.RIGHT|wx.BOTTOM, 10 )
  59 
  60         brushLabel = wx.StaticText( frmPanel, -1, "Brush Styles :" )
  61         brushLabel.SetFont( font )
  62 
  63         frame_vSzr.Add( brushLabel, 0, wx.EXPAND|wx.ALL, 10 )
  64         
  65         grdSzr_bot = wx.GridSizer( 3, 3, 3, 3 )  # rows, cols, vgap, hgap
  66 
  67         for aBrushStyle in brush_styles :
  68             aBrushPanel = BrushPanel( frmPanel, aBrushStyle )
  69             grdSzr_bot.Add( aBrushPanel, 0, wx.EXPAND )
  70         #end for
  71         
  72         frame_vSzr.Add( grdSzr_bot, 1, wx.EXPAND|wx.LEFT|wx.RIGHT|wx.BOTTOM, 10 )
  73         
  74         frmPanel.SetSizer( frame_vSzr )
  75         self.Layout()
  76 
  77     #end __init__
  78     
  79 #end PenAndBrushFrame class
  80 
  81 #------------------------------------------------------------------------------
  82 
  83 pen_styles = [ "wx.SOLID", "wx.DOT", "wx.LONG_DASH",
  84                "wx.SHORT_DASH", "wx.DOT_DASH", "wx.BDIAGONAL_HATCH",
  85                "wx.CROSSDIAG_HATCH", "wx.FDIAGONAL_HATCH", "wx.CROSS_HATCH",
  86                "wx.VERTICAL_HATCH", "wx.STIPPLE", "wx.USER_DASH" ]
  87 
  88 brush_styles = [ "wx.SOLID", "wx.STIPPLE", "wx.BDIAGONAL_HATCH",
  89                  "wx.CROSSDIAG_HATCH", "wx.FDIAGONAL_HATCH", "wx.CROSS_HATCH",
  90                  "wx.HORIZONTAL_HATCH", "wx.VERTICAL_HATCH", "wx.TRANSPARENT" ]
  91 
  92 
  93 mondrian = PyEmbeddedImage( 
  94     "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAABHNCSVQICAgIfAhkiAAAAHFJ"
  95     "REFUWIXt1jsKgDAQRdF7xY25cpcWC60kioI6Fm/ahHBCMh+BRmGMnAgEWnvPpzK8dvrFCCCA"
  96     "coD8og4c5Lr6WB3Q3l1TBwLYPuF3YS1gn1HphgEEEABcKERrGy0E3B0HFJg7C1N/f/kTBBBA"
  97     "+Vi+AMkgFEvBPD17AAAAAElFTkSuQmCC" )
  98 
  99 #------------------------------------------------------------------------------
 100 
 101 class BasePanel( wx.Panel ) :
 102 
 103     def __init__( self, parent ) :
 104 
 105         wx.Panel.__init__( self, parent, style=wx.SUNKEN_BORDER|wx.WANTS_CHARS )
 106 
 107         self.SetBackgroundStyle( wx.BG_STYLE_CUSTOM )
 108 
 109         self.Bind( wx.EVT_SIZE, self.OnSize )        
 110         self.Bind( wx.EVT_PAINT, self.OnPaint )
 111 
 112 
 113     def OnSize( self, event ) :
 114 
 115         event.Skip()
 116         self.Refresh()
 117 
 118 #end class
 119 
 120 #------------------------------------------------------------------------------
 121 
 122 class PenPanel( BasePanel ) :
 123 
 124     def __init__( self, parent, pen_name ) :
 125 
 126         BasePanel.__init__( self, parent )
 127         self.pen_name = pen_name
 128         
 129     #end __init__
 130     
 131     #----------------------------------
 132     
 133     def OnPaint( self, event ) :
 134 
 135         width, height = self.GetClientSize()
 136 
 137         dc = wx.AutoBufferedPaintDC( self )
 138         dc.SetBackground( wx.WHITE_BRUSH )
 139         dc.Clear()
 140 
 141         font = wx.SystemSettings.GetFont( wx.SYS_DEFAULT_GUI_FONT )
 142         dc.SetFont( font )
 143 
 144         name = self.pen_name        
 145 
 146         if "STIPPLE" in name :
 147             patternImg = mondrian.GetBitmap().ConvertToImage()
 148             patternBmap = patternImg.Rescale( 10, 10 ).ConvertToBitmap()
 149             pen = wx.Pen( wx.BLUE, patternBmap.GetWidth(), eval( self.pen_name ) )
 150             pen.SetStipple( patternBmap )
 151         else :
 152             pen = wx.Pen( wx.BLUE, 2, eval( name ) )
 153 
 154         if "USER" in name :
 155             pen.SetDashes( [2, 5] )
 156             name += " ( [2, 5] )"
 157         
 158         dc.SetTextForeground( wx.BLACK )
 159         dc.DrawText( name, 5, 5 )
 160 
 161         dc.SetPen( pen )
 162         dc.DrawLine( 5, 25, width-5, 25 )               # horizontal
 163         dc.DrawLine( 5, 30, width-5, self.Size[1]-10 )  # diagonal U-L to L-R
 164 
 165 #end PenPanel class
 166 
 167 #------------------------------------------------------------------------------
 168 
 169 class BrushPanel( BasePanel ) :
 170 
 171     def __init__( self, parent, aBrushStyle ) :
 172 
 173         BasePanel.__init__( self, parent )
 174         
 175         self.aBrushStyle = aBrushStyle
 176     
 177     #----------------------------------
 178     
 179     def OnPaint( self, event ) :
 180         
 181         width, height = self.GetClientSize()
 182         
 183         dc = wx.AutoBufferedPaintDC( self )
 184         dc.SetBackground( wx.WHITE_BRUSH )
 185         dc.Clear()
 186         
 187         font = wx.SystemSettings.GetFont( wx.SYS_DEFAULT_GUI_FONT )
 188         dc.SetFont( font )
 189         
 190         dc.SetPen( wx.TRANSPARENT_PEN )        
 191         name = self.aBrushStyle
 192         
 193         if "STIPPLE" in name :
 194             patternImg = mondrian.GetBitmap().ConvertToImage()
 195             patternImg.Rescale( 10, 10 )
 196             patternImg.SetMask( False )
 197             patternBmap = patternImg.ConvertToBitmap()
 198             brush = wx.BrushFromBitmap( patternBmap )
 199         else :
 200             brush = wx.Brush( wx.BLUE, eval( name ) )
 201         
 202         dc.SetTextForeground( wx.BLACK )
 203         dc.DrawText( name, 5, 5 )
 204         
 205         if "wx.TRANSPARENT" in name :
 206             dc.SetPen( wx.Pen( wx.BLUE, 2, wx.SOLID ) )
 207         dc.SetBrush( brush )
 208         dc.DrawRectangle( 5, 30, width-10, height-35 )
 209         
 210     #end OnPaint def
 211     
 212 #end BrushPanel class
 213 
 214 #==============================================================================
 215 
 216 if __name__ == '__main__' :
 217 
 218     app = wx.App( redirect=False )
 219     
 220     appFrame = PenAndBrushFrame()
 221     appFrame.CenterOnScreen()
 222     appFrame.Show()
 223     
 224     app.MainLoop()
 225 
 226 #end if