private void PreloadDisabledImages()
{
foreach (object obj in Resources.Values)
{
ImageSource imageSource = (obj as ImageSource);
if (null != imageSource)
{
AutoDisableImage.LoadImage(imageSource);
}
}
}
protected static void OnAutoDisableImageIsEnabledPropertyChanged(DependencyObject source, DependencyPropertyChangedEventArgs args)
{
AutoDisableImage image = GetImageWithSource(source);
if (null != image)
{
bool isEnabled = Convert.ToBoolean(args.NewValue);
image.Source = isEnabled ? image.OriginalImageSource : image.DisabledImageSource;
image.Opacity = isEnabled ? 1.0 : 0.5;
image.OpacityMask = isEnabled ? null : new ImageBrush(image.OriginalImageSource);
}
}
protected static AutoDisableImage GetImageWithSource(DependencyObject source)
{
AutoDisableImage image = source as AutoDisableImage;
if (null == image)
{
return(null);
}
if (null == image.Source)
{
return(null);
}
return(image);
}