private void InitScatterViewHost(ScatterView mainScatterView)
{
this.ScatterHost.Width = mainScatterView.ActualWidth;
this.ScatterHost.Height = mainScatterView.ActualHeight;
this.ScatterHost.Background = mainScatterView.Background;
//@@@this.ScatterHost.ItemTemplateSelector = this.ItemTemplateSelector;
}
/// <summary>
/// Handles changes to the ScatterArea property.
/// </summary>
/// <param name="d">Source dependendency o bject</param>
/// <param name="e">Event argument</param>
private static void OnScatterAreaChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MiniMap target = (MiniMap)d;
ScatterView oldValue = (ScatterView)e.OldValue;
ScatterView newValue = target.ScatterArea;
target.OnScatterAreaChanged(oldValue, newValue);
}
private void UpdateScatterViewInfo(object sender, SizeChangedEventArgs e)
{
ScatterView source = (ScatterView)sender;
this.areaWidth = source.ActualWidth;
this.areaHeight = source.ActualHeight;
this.InitRatios();
this.InitScatterViewHost(source);
}
/// <summary>
/// Provides derived classes an opportunity to handle changes to the ScatterArea property.
/// </summary>
/// <param name="oldValue">Parameter old value</param>
/// <param name="newValue">Paramenter new value </param>]
protected virtual void OnScatterAreaChanged(ScatterView oldValue, ScatterView newValue)
{
if (newValue != null)
{
this.areaWidth = newValue.ActualWidth;
this.areaHeight = newValue.ActualHeight;
this.InitRatios();
this.InitScatterViewHost(newValue);
//newValue.ZoomFactorChanged += this.OnZoomFactorChanged;
newValue.SizeChanged += this.UpdateScatterViewInfo;
}
else
{
this.areaWidth = -1;
this.areaHeight = -1;
this.ratioX = 1;
this.ratioY = 1;
}
}
public ScatterViewItem(ScatterView scatterView) : base(scatterView)
{
this.DefaultStyleKey = typeof(ScatterViewItem);
}
/// <summary>
/// Initializes a new instance of the <see cref="ConnectableViewItem"/> class.
/// </summary>
/// <param name="scatterView"></param>
protected ConnectableViewItem(ScatterView scatterView) : base(scatterView)
{
this.SubscribeUIChanges();
}
