/// <summary>
/// Returns the bounding box occupied by the content
/// </summary>
/// <returns>
/// Bounding box occupied by the content
/// </returns>
public Rect GetContentBounds(BoundsDrawingContextWalker ctx)
{
Debug.Assert(ctx != null);
DrawingContextWalk(ctx);
return(ctx.Bounds);
}
/// <summary>
/// Returns the bounding box occupied by the content
/// </summary>
/// <returns>
/// Bounding box occupied by the content
/// </returns>
Rect IDrawingContent.GetContentBounds(BoundsDrawingContextWalker ctx)
{
Debug.Assert(ctx != null);
WalkCurrentValue(ctx);
return(ctx.Bounds);
}
/// <summary>
/// GetBounds to calculate the bounds of this drawing.
/// </summary>
internal Rect GetBounds()
{
BoundsDrawingContextWalker ctx = new BoundsDrawingContextWalker();
WalkCurrentValue(ctx);
return(ctx.Bounds);
}
/// <summary>
/// Returns the bounding box of the content.
/// </summary>
internal override Rect GetContentBounds()
{
if (_content != null)
{
Rect resultRect = Rect.Empty;
MediaContext mediaContext = MediaContext.From(Dispatcher);
BoundsDrawingContextWalker ctx = mediaContext.AcquireBoundsDrawingContextWalker();
resultRect = _content.GetContentBounds(ctx);
mediaContext.ReleaseBoundsDrawingContextWalker(ctx);
return(resultRect);
}
else
{
return(Rect.Empty);
}
}
/// <summary>
/// Returns the bounding box occupied by the content
/// </summary>
/// <returns>
/// Bounding box occupied by the content
/// </returns>
public Rect GetContentBounds(BoundsDrawingContextWalker ctx)
{
Debug.Assert(ctx != null);
DrawingContextWalk(ctx);
return ctx.Bounds;
}
/// <summary>
/// Set the BoundsDrawingContextWalker for next use
/// To handle reentrance we want to make sure that
/// no one else on the same thread gets the same context.
/// </summary>
internal void ReleaseBoundsDrawingContextWalker(BoundsDrawingContextWalker ctx)
{
_cachedBoundsDrawingContextWalker = ctx;
}
/// <summary>
/// Returns the bounding box occupied by the content
/// </summary>
/// <returns>
/// Bounding box occupied by the content
/// </returns>
Rect IDrawingContent.GetContentBounds(BoundsDrawingContextWalker ctx)
{
Debug.Assert(ctx != null);
WalkCurrentValue(ctx);
return ctx.Bounds;
}
/// <summary>
/// GetBounds to calculate the bounds of this drawing.
/// </summary>
internal Rect GetBounds()
{
BoundsDrawingContextWalker ctx = new BoundsDrawingContextWalker();
WalkCurrentValue(ctx);
return ctx.Bounds;
}
