//Ctrl/Shift Pan Animation
public ZoomAndPanAnimationHelper(double newOffsetX, double newOffsetY, GraphVisualHost visualHost, GraphControl graphControl)
{
mousePosition = graphControl.canvasScrollViewer.TranslatePoint(GetMousePosition(), graphControl.CurrentGraphCanvas);
this.currentCursor = graphControl.GetCursor();
//System.Windows.Input.Mouse.OverrideCursor = System.Windows.Input.Cursors.None;
staticGraphControl = graphControl;
this.visualHost = visualHost;
staticScrollViewer = staticGraphControl.canvasScrollViewer;
ZoomAndPanAnimationHelper.newOffsetX = newOffsetX;
ZoomAndPanAnimationHelper.newOffsetY = newOffsetY;
ZoomAndPanAnimationHelper.newScale = double.MinValue;
double offsetX = staticGraphControl.canvasScrollViewer.HorizontalOffset;
double offsetY = staticGraphControl.canvasScrollViewer.VerticalOffset;
double shiftX = newOffsetX - offsetX;
double shiftY = newOffsetY - offsetY;
if (Math.Abs(shiftX) < 0.01 &&
Math.Abs(shiftY) < 0.01)
{
return;
}
DoubleAnimation xOffsetAnimation = new DoubleAnimation();
xOffsetAnimation.From = offsetX;
xOffsetAnimation.To = newOffsetX;
xOffsetAnimation.Duration = TimeSpan.FromMilliseconds(Configurations.ShortAnimationTime);
Storyboard.SetTarget(xOffsetAnimation, visualHost);
Storyboard.SetTargetProperty(xOffsetAnimation, new PropertyPath("XOffset"));
DoubleAnimation yOffsetAnimation = new DoubleAnimation();
yOffsetAnimation.From = offsetY;
yOffsetAnimation.To = newOffsetY;
yOffsetAnimation.Duration = TimeSpan.FromMilliseconds(Configurations.ShortAnimationTime);
Storyboard.SetTarget(yOffsetAnimation, visualHost);
Storyboard.SetTargetProperty(yOffsetAnimation, new PropertyPath("YOffset"));
zoomAndPanStoryboard = new Storyboard();
zoomAndPanStoryboard.Children.Add(xOffsetAnimation);
zoomAndPanStoryboard.Children.Add(yOffsetAnimation);
zoomAndPanStoryboard.Completed += new EventHandler(OnAnimationCompleted);
BeginAnimation();
}
//Zoom to Fit Animation
public ZoomAndPanAnimationHelper(double newOffsetX, double newOffsetY, double newScale, GraphVisualHost visualHost, GraphControl graphControl, bool captureMouse)
{
staticGraphControl = graphControl;
this.visualHost = visualHost;
staticScrollViewer = staticGraphControl.canvasScrollViewer;
ZoomAndPanAnimationHelper.newOffsetX = newOffsetX;
ZoomAndPanAnimationHelper.newOffsetY = newOffsetY;
ZoomAndPanAnimationHelper.newScale = newScale;
double offsetX = staticGraphControl.canvasScrollViewer.HorizontalOffset;
double offsetY = staticGraphControl.canvasScrollViewer.VerticalOffset;
double scale = staticGraphControl.scaleTransform.ScaleX;
double shiftX = newOffsetX - offsetX;
double shiftY = newOffsetY - offsetY;
double scaleChange = newScale - scale;
if (captureMouse)
{
Point mousePositionOnScreen = GetMousePosition();
mousePosition = new Point((mousePositionOnScreen.X + offsetX) / scale,
(mousePositionOnScreen.Y + offsetY) / scale);
this.currentCursor = staticGraphControl.GetCursor();
//System.Windows.Input.Mouse.OverrideCursor = System.Windows.Input.Cursors.None;
}
if (Math.Abs(shiftX) < 0.05 &&
Math.Abs(shiftY) < 1 &&
Math.Abs(scaleChange) < 1)
{
return;
}
zoomAndPanStoryboard = new Storyboard();
if (Math.Abs(shiftX) >= 0.05)
{
DoubleAnimation scaleAnimation = new DoubleAnimation();
scaleAnimation.From = scale;
scaleAnimation.To = newScale;
scaleAnimation.Duration = TimeSpan.FromMilliseconds(Configurations.ShortAnimationTime);
Storyboard.SetTarget(scaleAnimation, visualHost);
Storyboard.SetTargetProperty(scaleAnimation, new PropertyPath("Scale"));
zoomAndPanStoryboard.Children.Add(scaleAnimation);
}
if (Math.Abs(shiftX) >= 1)
{
DoubleAnimation xOffsetAnimation = new DoubleAnimation();
xOffsetAnimation.From = offsetX;
xOffsetAnimation.To = newOffsetX;
xOffsetAnimation.Duration = TimeSpan.FromMilliseconds(Configurations.ShortAnimationTime);
Storyboard.SetTarget(xOffsetAnimation, visualHost);
Storyboard.SetTargetProperty(xOffsetAnimation, new PropertyPath("XOffset"));
zoomAndPanStoryboard.Children.Add(xOffsetAnimation);
}
if (Math.Abs(shiftY) >= 1)
{
DoubleAnimation yOffsetAnimation = new DoubleAnimation();
yOffsetAnimation.From = offsetY;
yOffsetAnimation.To = newOffsetY;
yOffsetAnimation.Duration = TimeSpan.FromMilliseconds(Configurations.ShortAnimationTime);
Storyboard.SetTarget(yOffsetAnimation, visualHost);
Storyboard.SetTargetProperty(yOffsetAnimation, new PropertyPath("YOffset"));
zoomAndPanStoryboard.Children.Add(yOffsetAnimation);
}
zoomAndPanStoryboard.Completed += new EventHandler(OnAnimationCompleted);
BeginAnimation();
}