/// <summary> /// Converts a RenderData content representation into a DrawingGroup /// content representation. /// </summary> /// <param name="renderData"> The RenderData to convert </param> /// <returns> /// A new DrawingGroup representation that is functionally equivalent to the /// passed-in RenderData. /// </returns> internal static DrawingGroup DrawingGroupFromRenderData(RenderData renderData) { // // Create & open a new DrawingGroup // DrawingGroup drawingGroup = new DrawingGroup(); DrawingContext dc = drawingGroup.Open(); // // Create a DrawingGroup from the RenderData by walking // the RenderData & having it forward it's base value's // and animations to DrawingGroup // // // The Drawing tree we're about to produce should not be an inheritance context, // since that would place all mutable Freezables in the render data into shared // state, which would in turn case them to lose their inheritance context entirely. // This is controlled by setting "CanBeInheritanceContext" to false on the // DrawingContext which will then be applied to all new objects it creates. // DrawingDrawingContext ddc = dc as DrawingDrawingContext; if (ddc != null) { ddc.CanBeInheritanceContext = false; } DrawingContextDrawingContextWalker walker = new DrawingContextDrawingContextWalker(dc); renderData.BaseValueDrawingContextWalk(walker); // // Close the DrawingContext & return the new DrawingGroup // dc.Close(); return(drawingGroup); }
/// <summary> /// Converts a RenderData content representation into a DrawingGroup /// content representation. /// </summary> /// <param name="renderData"> The RenderData to convert </param> /// <returns> /// A new DrawingGroup representation that is functionally equivalent to the /// passed-in RenderData. /// </returns> internal static DrawingGroup DrawingGroupFromRenderData(RenderData renderData) { // // Create & open a new DrawingGroup // DrawingGroup drawingGroup = new DrawingGroup(); DrawingContext dc = drawingGroup.Open(); // // Create a DrawingGroup from the RenderData by walking // the RenderData & having it forward it's base value's // and animations to DrawingGroup // // // The Drawing tree we're about to produce should not be an inheritance context, // since that would place all mutable Freezables in the render data into shared // state, which would in turn case them to lose their inheritance context entirely. // This is controlled by setting "CanBeInheritanceContext" to false on the // DrawingContext which will then be applied to all new objects it creates. // DrawingDrawingContext ddc = dc as DrawingDrawingContext; if (ddc != null) { ddc.CanBeInheritanceContext = false; } DrawingContextDrawingContextWalker walker = new DrawingContextDrawingContextWalker(dc); renderData.BaseValueDrawingContextWalk(walker); // // Close the DrawingContext & return the new DrawingGroup // dc.Close(); return drawingGroup; }