private static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MultiScaleImage multiScaleImage = (MultiScaleImage)d;
MultiScaleTileSource oldSource = (MultiScaleTileSource)e.OldValue;
MultiScaleTileSource source = multiScaleImage.Source;
multiScaleImage.OnSourceChanged(oldSource, source);
}
public VisualTile(Tile tile, MultiScaleTileSource tileSource)
{
ZIndex = tile.Level;
Scale = 1.0 / tileSource.ScaleAtLevel(tile.Level);
Point tilePosition = tileSource.GetTilePosition(tile.Column, tile.Row);
Left = tilePosition.X * Scale;
Top = tilePosition.Y * Scale;
}
protected virtual void OnSourceChanged(MultiScaleTileSource oldSource, MultiScaleTileSource newSource)
{
if (newSource == null)
{
_spatialSource = null;
return;
}
_spatialSource = new MultiScaleImageSpatialItemsSource(newSource);
if (_itemsControl != null)
{
_itemsControl.ItemsSource = _spatialSource;
}
if (_zoomableCanvas != null)
{
InitializeCanvas();
}
}
public VisualTile(Tile tile, MultiScaleTileSource tileSource, ImageSource source)
: this(tile, tileSource)
{
Source = source;
}
public MultiScaleImageSpatialItemsSource(MultiScaleTileSource tileSource)
{
_tileSource = tileSource;
}
