Add Chris's plugin utility converter and wxpython plugin.

scikits/image/io/wxpython_plugin.py

@@ -0,0 +1,53 @@
+import numpy as np
+import plugin
+from _plugin_util import prepare_for_display
+
+try:
+    import wx
+except ImportError:
+    pass
+else:
+
+    # idea shamelessly taken from here:
+    # http://wiki.wxpython.org/WorkingWithImages
+
+    class ImagePanel(wx.Panel):
+        def __init__(self, parent, id):
+            wx.Panel.__init__(self, parent, id)
+            self.bitmap = None
+            self.Bind(wx.EVT_PAINT, self.OnPaint)
+
+        def display(self, npy_img):
+            self.bitmap = self.get_bitmap(npy_img)
+            self.Refresh(True)
+
+        def OnPaint(self, evt):
+            dc = wx.PaintDC(self)
+            if self.bitmap:
+                dc.DrawBitmap(self.bitmap, 0, 0)
+
+        def get_bitmap(self, npy_img):
+            width = npy_img.shape[1]
+            height = npy_img.shape[0]
+            wx_img = wx.EmptyImage(width, height)
+            wx_img.SetData(npy_img.data)
+            return wx.BitmapFromImage(wx_img)
+
+
+    class ImageFrame(wx.Frame):
+        def __init__(self, img):
+            self.img = img
+            width = img.shape[1]
+            height = img.shape[0]
+            wx.Frame.__init__(self, None, -1, 'wx', wx.DefaultPosition,
+                                wx.Size(width, height))
+
+            self.iPanel = ImagePanel(self, -1)
+            self.iPanel.display(self.img)
+
+    def wx_imshow(img):
+        f = ImageFrame(prepare_for_display(img))
+        f.CenterOnScreen()
+        f.Show()
+
+    plugin.register('wx', show=wx_imshow)