private void OnGraphCanvasLoaded(object sender, RoutedEventArgs e)
{
visualHost = new GraphVisualHost(this, this.graphControl, this.startupFile);
visualHost.IsInRecordingMode = graphControl.IsInRecordingMode;
graphCanvas.Children.Add(visualHost);
graphControl.GraphControllerLoaded(this.Controller.Identifier);
graphCanvas.KeyDown += new KeyEventHandler(OnCanvasKeyDown);
graphCanvas.KeyUp += new KeyEventHandler(OnCanvasKeyUp);
graphCanvas.MouseMove += new MouseEventHandler(OnCanvasMouseMove);
graphCanvas.MouseDown += OnCanvasMouseButtonDown;
graphCanvas.PreviewMouseDown += OnCanvasPreviewMouseDown;
graphCanvas.MouseUp += OnCanvasMouseButtonUp;
//for libraryview
graphCanvas.AllowDrop = true;
graphCanvas.Drop += new DragEventHandler(OnCanvasDrop);
//for Zoom and Pan
graphCanvas.MouseWheel += OnMouseWheel;
//if (!string.IsNullOrEmpty(this.startupFile))
// this.visualHost.HandleZoomToFit();
graphCanvas.Focus();
}
//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();
}
public ExtendedPreview(String text, double width, double height, GraphControl graphControl, GraphVisualHost visualHost)
{
InitializeComponent();
this.graphControl = graphControl;
this.visualHost = visualHost;
this.InternalTextBox.Text = text;
this.Focusable = true;
this.IsEnabled = true;
PreviewPanel.Focusable = true;
PreviewPanel.IsEnabled = true;
InternalTextBox.Focusable = true;
InternalTextBox.IsEnabled = true;
InternalTextBox.IsReadOnly = true;
InternalTextBox.FontFamily = new FontFamily(Configurations.Font);
InternalTextBox.FontWeight = FontWeights.Normal;
InternalTextBox.FontSize = Configurations.InfoBubbleText;
FormattedText formattedText = new FormattedText(text,
Configurations.culture,
FlowDirection.LeftToRight,
Configurations.TypeFace,
Configurations.InfoBubbleText,
Configurations.PreviewBubbleExtendedTextColor);
double textWidth = formattedText.WidthIncludingTrailingWhitespace + 2 * Configurations.InfoBubbleMargin + Configurations.PreviewBubbleExtendedScrollBarWidth;
double extendedPreviewWidth;
// the minimum width should allow the first value to be shown in one line
if (text.Contains(','))
{
double minimumTextWidth = double.MinValue;
string tempText = text.Substring(0, text.IndexOf(','));
FormattedText tempFormattedText = new FormattedText(tempText,
Configurations.culture,
FlowDirection.LeftToRight,
Configurations.TypeFace,
Configurations.InfoBubbleText,
Configurations.PreviewBubbleExtendedTextColor);
minimumTextWidth = tempFormattedText.WidthIncludingTrailingWhitespace + 2 * Configurations.InfoBubbleMargin + Configurations.PreviewBubbleExtendedScrollBarWidth + 3;
extendedPreviewWidth = Math.Max(width, minimumTextWidth);
}
else // if there is only one data member, need to fit in it
{
extendedPreviewWidth = Math.Max(width, textWidth);
}
//leave space for scrollbar and radial menu
this.InternalTextBox.Width = extendedPreviewWidth - Configurations.PreviewBubbleExtendedScrollBarWidth;
if (height > 0)
{
InternalTextBox.Height = height;
}
if (textWidth <= InternalTextBox.Width)
{
InternalTextBox.TextAlignment = TextAlignment.Center;
InternalTextBox.Padding = new Thickness(Configurations.PreviewBubbleExtendedScrollBarWidth, Configurations.InfoBubbleMargin,
0, Configurations.InfoBubbleMargin);
}
else
{
InternalTextBox.MaxHeight = Configurations.InfoBubbleMaxHeight;
InternalTextBox.TextWrapping = TextWrapping.Wrap;
InternalTextBox.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
InternalTextBox.Padding = new Thickness(Configurations.InfoBubbleMargin, Configurations.InfoBubbleMargin, 0, Configurations.InfoBubbleMargin);
}
}
//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();
}