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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
// Description: IDrawingContent defines a common interface for representations
// of content populated by a DrawingContext. Currently
// Drawing content can be represented by either RenderData
// or DrawingGroups.
//
using System.Windows.Media;
using System.Windows.Media.Composition;
namespace System.Windows.Media
{
/// <summary>
/// IDrawingContent defines a common interface for representations
/// of content populated by a DrawingContext. Currently
/// Drawing content can be represented by either RenderData
/// or DrawingGroup graphs.
/// </summary>
internal interface IDrawingContent : DUCE.IResource
{
/// <summary>
/// Returns the bounding box occupied by the content
/// </summary>
/// <returns>
/// Bounding box occupied by the content
/// </returns>
Rect GetContentBounds(BoundsDrawingContextWalker ctx);
/// <summary>
/// Forward the current value of the content to the DrawingContextWalker
/// methods.
/// </summary>
/// <param name="walker"> DrawingContextWalker to forward content to. </param>
void WalkContent(DrawingContextWalker walker);
/// <summary>
/// Determines whether or not a point exists within the content
/// </summary>
/// <param name="point"> Point to hit-test for. </param>
/// <returns>
/// 'true' if the point exists within the content, 'false' otherwise
/// </returns>
bool HitTestPoint(Point point);
/// <summary>
/// Hit-tests a geometry against this content
/// </summary>
/// <param name="geometry"> PathGeometry to hit-test for. </param>
/// <returns>
/// IntersectionDetail describing the result of the hit-test
/// </returns>
IntersectionDetail HitTestGeometry(PathGeometry geometry);
/// <summary>
/// Propagates an event handler to Freezables referenced by
/// the content.
/// </summary>
/// <param name="handler"> Event handler to propagate </param>
/// <param name="adding"> 'true' to add the handler, 'false' to remove it </param>
void PropagateChangedHandler(EventHandler handler, bool adding);
}
}
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