/// <summary>
/// Disposes resources used by the control.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing)
{
// Piccolo has some static fields which reference the current canvas.
// Canvas references us through events -> we never get cleanup.
// Therefor we must unsubscribe from all events.
FCanvas.RemoveInputEventListener(FSelectionEventHandler);
FCanvas.RemoveInputEventListener(FDragDropEventHandler);
FCanvas.RemoveInputEventListener(FMyPanEventHandler);
FCanvas.RemoveInputEventListener(FMyZoomEventHandler);
FCanvas.RemoveInputEventListener(FPathEventHandler);
FCanvas.RemoveInputEventListener(FEventPassThrougHandler);
FCanvas.KeyPress -= FCanvas_KeyPress;
FCanvas.KeyDown -= FCanvas_KeyDown;
FCanvas.KeyUp -= FCanvas_KeyUp;
if (components != null)
{
components.Dispose();
}
}
base.Dispose(disposing);
}
public GraphEditor()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
SolidLayer = FCanvas.Layer;
LinkLayer = new PLayer();
FCanvas.Root.AddChild(LinkLayer);
//add linklayer below nodelayer
FCanvas.Camera.AddLayer(LinkLayer);
FCanvas.Camera.AddLayer(SolidLayer);
//set default roots
LinkRoot = CreateDot(null);
Root = CreateDot(null);
//set render quality
FCanvas.HighRenderQuality +=
delegate(Graphics graphics)
{
//improves text render quality when antialiased and speeds up drawing
graphics.CompositingQuality = CompositingQuality.HighSpeed;
};
FCanvas.AnimatingRenderQuality = RenderQuality.HighQuality;
FCanvas.InteractingRenderQuality = RenderQuality.HighQuality;
FCanvas.DefaultRenderQuality = RenderQuality.HighQuality;
//remove default zoom and pan event handlers
FCanvas.RemoveInputEventListener(FCanvas.ZoomEventHandler);
FCanvas.RemoveInputEventListener(FCanvas.PanEventHandler);
//create custom event handlers
FDragDropEventHandler = new DragDropEventHandler();
FMyPanEventHandler = new PanEventHandler();
FMyZoomEventHandler = new ZoomEventHandler();
FPathEventHandler = new PathEventHandler(this);
FEventPassThrougHandler = new EventPassThrougHandler(this);
//add custom event handlers
FCanvas.AddInputEventListener(FDragDropEventHandler);
FCanvas.AddInputEventListener(FMyPanEventHandler);
FCanvas.AddInputEventListener(FMyZoomEventHandler);
FCanvas.AddInputEventListener(FPathEventHandler);
FCanvas.AddInputEventListener(FEventPassThrougHandler);
FCanvas.KeyPress += FCanvas_KeyPress;
FCanvas.KeyDown += FCanvas_KeyDown;
FCanvas.KeyUp += FCanvas_KeyUp;
FCanvas.MinimumSize = new Size(10, 10);
}
