/// <summary>
/// Zoom content to view. Must be done on IVirtualCanvas due to needing zoom and graph
/// </summary>
/// <param name="canvas"></param>
/// <param name="zoomToContent"></param>
public static void ZoomToContent(this IMesVirtualCanvas canvas, ZoomToContent zoomToContent)
{
Double?zoom = null;
switch (zoomToContent)
{
case Extensions.ZoomToContent.Manual:
zoom = null;
break;
case Extensions.ZoomToContent.Width:
zoom = canvas.Graph.ViewportWidth / canvas.Graph.Extent.Width;
break;
case Extensions.ZoomToContent.Height:
zoom = canvas.Graph.ViewportHeight / canvas.Graph.Extent.Width;
break;
case Extensions.ZoomToContent.WidthAndHeight:
Double scaleX = canvas.Graph.ViewportWidth / canvas.Graph.Extent.Width;
Double scaleY = canvas.Graph.ViewportHeight / canvas.Graph.Extent.Height;
zoom = Math.Min(scaleX, scaleY);
break;
}
if (zoom != null)
{
canvas.Zoom.Value = zoom.Value;
canvas.Zoom.ResetTranslate();
}
}
public VirtualCanvasView()
{
InitializeComponent();
DataContextChanged += (s, e) =>
{
IMesVirtualCanvas dc = (IMesVirtualCanvas)DataContext;
Graph.UseDefaultControls(dc);
};
}
