/// <summary>
/// Method called to clamp the ContentOffset X or Y value to its valid range.
/// </summary>
/// <param name="pObject">The modified control.</param>
/// <param name="pBaseValue">The value to coerce.</param>
private static object OnCoerceContentOffset(DependencyObject pObject, object pBaseValue)
{
TooledZoomAndPanControl lControl = pObject as TooledZoomAndPanControl;
if (lControl != null)
{
double lValue = System.Convert.ToDouble(pBaseValue);
double lMinOffsetX = 0.0;
lValue = Math.Max(lValue, lMinOffsetX);
return(lValue);
}
return(pBaseValue);
}
/// <summary>
/// Method called when the control template is applied.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// Getting the parts of the control.
this.mZoomAndPanControl = this.GetTemplateChild(PART_ZOOM_AND_PAN_CONTROL) as TooledZoomAndPanControl;
this.mSimpleGraphView = this.GetTemplateChild(PART_SIMPLE_GRAPH_VIEW) as SimpleGraphView;
this.mOverview = this.GetTemplateChild(PART_OVERVIEW) as SimpleGraphView;
if (this.mZoomAndPanControl == null || this.mSimpleGraphView == null || this.mOverview == null)
{
throw new Exception("GraphView control template not correctly defined.");
}
this.mSimpleGraphView.SelectionChanged += this.OnSimpleGraphViewSelectionChanged;
}