| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef GraphicsLayerClient_h |
| #define GraphicsLayerClient_h |
| |
| namespace WebCore { |
| |
| class FloatPoint; |
| class GraphicsContext; |
| class GraphicsLayer; |
| class IntPoint; |
| class IntRect; |
| class TransformationMatrix; |
| |
| enum GraphicsLayerPaintingPhaseFlags { |
| GraphicsLayerPaintBackground = (1 << 0), |
| GraphicsLayerPaintForeground = (1 << 1), |
| GraphicsLayerPaintMask = (1 << 2), |
| GraphicsLayerPaintOverflowContents = (1 << 3), |
| GraphicsLayerPaintCompositedScroll = (1 << 4), |
| GraphicsLayerPaintAllWithOverflowClip = (GraphicsLayerPaintBackground | GraphicsLayerPaintForeground | GraphicsLayerPaintMask) |
| }; |
| typedef unsigned GraphicsLayerPaintingPhase; |
| |
| enum AnimatedPropertyID { |
| AnimatedPropertyInvalid, |
| AnimatedPropertyWebkitTransform, |
| AnimatedPropertyOpacity, |
| AnimatedPropertyBackgroundColor, |
| AnimatedPropertyWebkitFilter |
| }; |
| |
| class GraphicsLayerClient { |
| public: |
| virtual ~GraphicsLayerClient() {} |
| |
| // Callback for when hardware-accelerated animation started. |
| virtual void notifyAnimationStarted(const GraphicsLayer*, double time) = 0; |
| |
| virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) = 0; |
| virtual void didCommitChangesForLayer(const GraphicsLayer*) const { } |
| |
| // Provides current transform (taking transform-origin and animations into account). Input matrix has been |
| // initialized to identity already. Returns false if the layer has no transform. |
| virtual bool getCurrentTransform(const GraphicsLayer*, TransformationMatrix&) const { return false; } |
| |
| // Multiplier for backing store size, related to high DPI. |
| virtual float deviceScaleFactor() const { return 1; } |
| // Page scale factor. |
| virtual float pageScaleFactor() const { return 1; } |
| |
| virtual bool isTrackingRepaints() const { return false; } |
| |
| #ifndef NDEBUG |
| // RenderLayerBacking overrides this to verify that it is not |
| // currently painting contents. An ASSERT fails, if it is. |
| // This is executed in GraphicsLayer construction and destruction |
| // to verify that we don't create or destroy GraphicsLayers |
| // while painting. |
| virtual void verifyNotPainting() { } |
| #endif |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // GraphicsLayerClient_h |