[IronPython] WPF Image Box

WPF Image Box

import clr
clr.AddReference("PresentationFramework")
clr.AddReference("PresentationCore");
clr.AddReference('System.Data')
clr.AddReference('System.Windows.Forms')

import System
from System import *
from System.Data import *
from System.Type import GetType
from System.Threading.Tasks import Task
from System.Windows import *
from System.Windows.Controls import *
from System.Windows.Controls.Primitives import *
from System.Windows.Media import *
from System.Windows.Media.Imaging import *
from System.Windows.Media.Effects import *
from System.Windows.Shapes import Rectangle
from System.Windows.Shapes import Rectangle
from System.Windows.Data import Binding
from System.Windows.Ink import Stroke
from System.Windows.Forms import ( FolderBrowserDialog, DialogResult )
from Microsoft.Win32 import ( OpenFileDialog, SaveFileDialog )

import ctrl

class WpfImage(ctrl.WpfCtrl):
    def __init__(self,imagefile,stretch=None,scroll=True,multiple=False,**kwargs):
        self.ctrl = Label()
        self.init(**kwargs)
        self.image = Image()
        self.image.HorizontalAlignment = HorizontalAlignment.Center
        self.image.VerticalAlignment = VerticalAlignment.Center
        if imagefile: self.image.Source = BitmapImage(System.Uri(imagefile,System.UriKind.Relative))
        if stretch: self.stretch(stretch)
        else: self.StretchUniform()
        '''if size: 
            self.image.Height = float(size); 
            self.image.Width = float(size)'''
        if scroll:
            scroll = ScrollViewer()
            scroll.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto
            scroll.Content = self.image
            self.ctrl.Content = scroll
        elif multiple:
            stack = StackPanel()
            stack.Orientation = Orientation.Horizontal
            stack.Children.Add(self.image)
            self.ctrl.Content = stack 
        else:
            self.ctrl.Content = self.image       
    def stretch_none(self): self.image.Stretch = Stretch.None
    def stretch_fill(self): self.image.Stretch = Stretch.Fill
    def stretch_uniform(self): self.image.Stretch = Stretch.Uniform
    def stretch_uniform_to_fill(self): self.image.Stretch = Stretch.UniformToFill
    def stretch(self,stretch):
        if stretch == 'none': self.stretch_none()
        elif stretch == 'fill': self.stretch_fill()
        elif stretch == 'uniform': self.stretch_uniform()
        elif stretch == 'uniformfill': self.stretch_uniform_to_fill()

if __name__ == "__main__":
    import win
    app = win.Win("Button Demo",320,240)
    b = WpfImage("Lenna.png","fill")
    app.set_content(b.ctrl)
    app.run()