import os import glob import wx from wx.svg import SVGimage #---------------------------------------------------------------------- class SVGBitmapDisplay(wx.Panel): """ A simple panel containing a static box and a rasterized SVG image """ def __init__(self, parent, bmp_size, *args, **kw): wx.Panel.__init__(self, parent, *args, **kw) self.bmp_size = wx.Size(*bmp_size) self.statbmp = wx.StaticBitmap(self, bitmap=wx.Bitmap(*self.bmp_size)) label='{}x{}'.format(self.bmp_size.width, self.bmp_size.height) sbox = wx.StaticBoxSizer(wx.VERTICAL, self, label) sbox.Add(self.statbmp) self.SetSizer(sbox) def UpdateSVG(self, svg_filename): img = SVGimage.CreateFromFile(svg_filename) bmp = img.ConvertToScaledBitmap(self.bmp_size, self) self.statbmp.SetBitmap(bmp) #print(bmp.GetSize()) #---------------------------------------------------------------------- class TestPanel(wx.Panel): def __init__(self, parent, log): self.log = log wx.Panel.__init__(self, parent, -1) self.listbox = wx.ListBox(self, style=wx.LB_SINGLE, size=(250, -1)) self.listbox.AppendItems(glob.glob(os.path.join('data', '*.svg'))) self.updateables = [] rightSizer = wx.BoxSizer(wx.VERTICAL) topRowSizer = wx.BoxSizer(wx.HORIZONTAL) # Add a few smallish bitmaps in a row for d in [32, 64, 128]: sbd = SVGBitmapDisplay(self, (d,d)) self.updateables.append(sbd) topRowSizer.Add(sbd, wx.SizerFlags().Border().Top()) rightSizer.Add(topRowSizer) # and add another, larger one below that row sbd = SVGBitmapDisplay(self, (256,256)) self.updateables.append(sbd) rightSizer.Add(sbd) self.Sizer = wx.BoxSizer(wx.HORIZONTAL) self.Sizer.Add(self.listbox, wx.SizerFlags(1).Border(wx.ALL, 10).Expand()) self.Sizer.Add(rightSizer, wx.SizerFlags(2).Border(wx.RIGHT|wx.BOTTOM|wx.TOP, 10).Expand()) self.Bind(wx.EVT_LISTBOX, self.OnSelectItem) self.listbox.SetSelection(0) # Load the first SVG in the list into the static bitmaps self.UpdateAll(self.listbox.GetString(0)) def OnSelectItem(self, evt): filename = self.listbox.GetStringSelection() self.UpdateAll(filename) def UpdateAll(self, svg_filename): for item in self.updateables: item.UpdateSVG(svg_filename) self.Layout() #---------------------------------------------------------------------- def runTest(frame, nb, log): win = TestPanel(nb, log) return win #---------------------------------------------------------------------- overview = """

SVGImage

The wx.svg.SVGimage class provides the ability to load, parse and render Scalable Vector Graphics (SVG) files. The advantage of SVG files is that they can be used to create bitmaps of any size without loss of quality. This sample demonstrates rasterizing an SVG image to wx.Bitmaps of various sizes. """ if __name__ == '__main__': import sys,os import run run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])