private static void chart_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
RadCartesianChart chart = (RadCartesianChart)sender;
Point fromPosition = e.GetPosition(chart);
SetFromPosition(chart, fromPosition);
SetToPosition(chart, fromPosition);
var plotAreaClip = chart.PlotAreaClip;
plotAreaClip.X += chart.PanOffset.X;
plotAreaClip.Y += chart.PanOffset.Y;
if (!plotAreaClip.Contains(fromPosition.X, fromPosition.Y))
{
return;
}
chart.CaptureMouse();
Canvas adorner = Telerik.Windows.Controls.ChildrenOfTypeExtensions.ChildrenOfType <Canvas>(chart).First(c => c.Name == "adornerContainer");
Style style = GetSelectionRectangleStyle(chart);
FrameworkElement selectionRectangle = BuildSelectionRectangle(style);
adorner.Children.Add(selectionRectangle);
UpdateSelectionRectanglePositionAndSize(chart);
SetIsSelectionRectangleShown(chart, true);
}
private static void Chart_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
RadCartesianChart chart = (RadCartesianChart)sender;
CameraInfo cameraInfo = GetOrCreateCameraInfo(chart);
object hOffsetResource = chart.TryFindResource("hOffset");
object vOffsetResource = chart.TryFindResource("vOffset");
double hOffset = hOffsetResource is double?(double)hOffsetResource : 0.0;
double vOffset = vOffsetResource is double?(double)vOffsetResource : 0.0;
cameraInfo.mouseDownPosition = e.GetPosition(chart);
cameraInfo.mouseDownOffset = new Point(hOffset, vOffset);
cameraInfo.isMouseCaptured = true;
chart.CaptureMouse();
}