void
Image::OnPropertyChanged (PropertyChangedEventArgs *args, MoonError *error)
{
if (args->GetProperty ()->GetOwnerType() != Type::IMAGE) {
MediaBase::OnPropertyChanged (args, error);
return;
}
if (args->GetId () == Image::SourceProperty) {
ImageSource *source = args->GetNewValue () ? args->GetNewValue ()->AsImageSource () : NULL;
ImageSource *old = args->GetOldValue () ? args->GetOldValue ()->AsImageSource () : NULL;
if (old) {
if (old->Is(Type::BITMAPSOURCE)) {
old->RemoveHandler (BitmapSource::PixelDataChangedEvent, source_pixel_data_changed, this);
}
if (old->Is(Type::BITMAPIMAGE)) {
old->RemoveHandler (BitmapImage::DownloadProgressEvent, download_progress, this);
old->RemoveHandler (BitmapImage::ImageOpenedEvent, image_opened, this);
old->RemoveHandler (BitmapImage::ImageFailedEvent, image_failed, this);
}
}
if (source) {
if (source->Is(Type::BITMAPSOURCE)) {
source->AddHandler (BitmapSource::PixelDataChangedEvent, source_pixel_data_changed, this);
}
if (source->Is(Type::BITMAPIMAGE)) {
source->AddHandler (BitmapImage::DownloadProgressEvent, download_progress, this);
source->AddHandler (BitmapImage::ImageOpenedEvent, image_opened, this);
source->AddHandler (BitmapImage::ImageFailedEvent, image_failed, this);
}
if (source->GetPixelWidth () > 0 && source->GetPixelHeight () > 0) {
RoutedEventArgs *args = MoonUnmanagedFactory::CreateRoutedEventArgs ();
ImageOpened (args);
args->unref ();
}
} else {
UpdateBounds ();
Invalidate ();
}
InvalidateMeasure ();
}
// we need to notify attachees if our DownloadProgress changed.
NotifyListenersOfPropertyChange (args, error);
}
