/// <summary>
/// <para>Renders the element in the specified context. To override Render, please override <see cref="OnRender"/></para>
/// <para>Uses <see cref="CanRender"/> to call OnRender or not. </para>
/// </summary>
/// <param name="context">The context.</param>
public void Render(IRenderContext2D context)
{
if (!IsRenderable)
{
return;
}
if (IsTransformDirty)
{
RelativeMatrix = Matrix3x2.Translation(-RenderSize * RenderTransformOrigin)
* ModelMatrix * Matrix3x2.Translation(RenderSize * RenderTransformOrigin)
* LayoutTranslate;
TotalModelMatrix = RelativeMatrix * ParentMatrix;
IsTransformDirty = false;
InvalidateVisual();
}
LayoutBoundWithTransform = LayoutBound.Translate(TotalModelMatrix.TranslationVector);
#if DISABLEBITMAPCACHE
IsBitmapCacheValid = false;
#else
EnsureBitmapCache(context, new Size2((int)Math.Ceiling(LayoutClipBound.Width), (int)Math.Ceiling(LayoutClipBound.Height)), context.DeviceContext.MaximumBitmapSize);
#endif
if (EnableBitmapCache && IsBitmapCacheValid)
{
if (IsVisualDirty)
{
#if DEBUGDRAWING
Debug.WriteLine("Redraw bitmap cache");
#endif
context.PushRenderTarget(bitmapCache, true);
context.DeviceContext.Transform = Matrix3x2.Identity;
context.PushRelativeTransform(Matrix3x2.Identity);
RenderCore.Transform = context.RelativeTransform;
OnRender(context);
context.PopRelativeTransform();
context.PopRenderTarget();
IsVisualDirty = false;
}
if (context.HasTarget)
{
context.DeviceContext.Transform = context.RelativeTransform * RelativeMatrix;
context.DeviceContext.DrawImage(bitmapCache, new Vector2(0, 0), LayoutClipBound,
InterpolationMode.Linear, global::SharpDX.Direct2D1.CompositeMode.SourceOver);
}
}
else if (context.HasTarget)
{
context.PushRelativeTransform(context.RelativeTransform * RelativeMatrix);
RenderCore.Transform = context.RelativeTransform;
OnRender(context);
context.PopRelativeTransform();
IsVisualDirty = false;
}
}