/// <summary>
/// Sets the CollisionDetectionManager.
/// </summary>
/// <param name="element">The element.</param>
/// <param name="collisionDetectionManager">The CollisionDetectionManager.</param>
public static void SetCollisionDetectionManager(DependencyObject element, CollisionDetectionManager collisionDetectionManager)
{
element.SetValue(GraphBase.CollisionDetectionManagerProperty, collisionDetectionManager);
}
/// <summary>
/// Draws the graph.
/// </summary>
/// <param name="panel">The panel.</param>
/// <param name="offset">The offset.</param>
/// <param name="panelNumber">The panel number.</param>
protected override void DrawPanel(PanelWrapper panel, long offset, int panelNumber)
{
if (null == this.VisibleWindow || !this.IsInitialized)
{
return;
}
this.CurrentWorkingPanelCallback = panelNumber;
this.DynamicTopAxisLayer = ((Grid)panel.Children[0]).FindName(DynamicTopAxisLayerElementName) as Canvas;
this.DynamicPlotLayerViewport = ((Grid)panel.Children[0]).FindName(DynamicPlotLayerViewportElementName) as Canvas;
this.DynamicPlotLayerViewport.SizeChanged += new SizeChangedEventHandler(this.DynamicPlotLayerViewport_SizeChanged);
this.DynamicPlotLayer = ((Grid)panel.Children[0]).FindName(DynamicPlotLayerElementName) as Canvas;
this.DynamicTopAxisLayerViewport = ((Grid)panel.Children[0]).FindName(DynamicTopAxisLayerViewportElementName) as Canvas;
this.MinimizedPlotLayer = ((Grid)panel.Children[0]).FindName(MinimizedPlotLayerElementName) as Canvas;
this.DynamicPlotLayer.Visibility = this.Minimized ? Visibility.Collapsed : Visibility.Visible;
if (this.MinimizedPlotLayer != null)
{
this.MinimizedPlotLayer.Visibility = this.Minimized ? Visibility.Visible : Visibility.Collapsed;
}
CollisionDetectionManager collisionDetectionManager = new CollisionDetectionManager();
GraphBase.SetCollisionDetectionManager(panel, collisionDetectionManager);
GraphBase.SetCollisionDetectionManager(this.DynamicPlotLayer, collisionDetectionManager);
// need to increment the currentWindowStartDate by figuring out the amount of time a
// window/page represents, and times that by the number of pages we are from the start.
// we do this by figuring out the ticks for a window.
// we then multiply this by the number in the offset.
long ticks = 0;
long totalTicks = 0;
try
{
if (null != this.VisibleWindow)
{
ticks = checked(this.VisibleWindow.Ticks * offset);
totalTicks = checked(this.AxisStartDate.Ticks + ticks);
}
}
catch (System.OverflowException e)
{
// style update.
if (null != e)
{
totalTicks = DateTime.MaxValue.Ticks + 1;
}
}
////it is possible to configure the Graph so that we try to go to a date that is beyond that
////that can be represented. e.g Window size is 10 years, and goto some huge page offset.
////if we do try that, then do nothing.
if (totalTicks <= DateTime.MaxValue.Ticks)
{
this.CurrentWindowStartDate = this.AxisStartDate.AddTicks(ticks);
panel.StartDate = this.CurrentWindowStartDate;
panel.EndDate = panel.StartDate.AddTicks(this.VisibleWindow.Ticks);
this.DynamicPlotLayer.Children.Clear();
this.DynamicTopAxisLayer.Children.Clear();
// when we draw the graph, we want to plot first because the overlap
// detection does not want to have grid lines to worry about.
if (this.DataContext != null)
{
this.InvalidDateSelected = false;
DateTime tempDate = this.CurrentWindowStartDate.AddTicks(this.VisibleWindow.Ticks);
IEnumerable enumerable = this.GetFilteredData(this.CurrentWindowStartDate, tempDate);
if (enumerable != null)
{
this.DrawFilteredTimeGraph(enumerable, panel);
}
else
{
this.DrawTimeGraph();
}
}
this.DrawTimeXAxis(offset);
}
}
// Use this for initialization
void Start()
{
collisionDetectionManager = new CollisionDetectionManager();
PassSceneObjects();
}
