flutter_flutter/engine/core/rendering/RenderGeometryMap.h
Eric Seidel e0fd75b5ab Make absolute and sort all Sky headers
This caused us to lose our gn check certification. :(

Turns out gn check was just ignoring all the header
paths it didn't understand and so gn check passing
for sky wasn't meaning much.  I tried to straighten
out some of the mess in this CL, but its going to take
several more rounds of massaging before gn check
passes again.  On the bright side (almost) all of
our headers are absolute now.  Turns out my script
(attached to the bug) didn't notice ../ includes
but I'll fix that in the next patch.

R=abarth@chromium.org
BUG=435361

Review URL: https://codereview.chromium.org/746023002
2014-11-20 17:42:05 -08:00

107 lines
4.5 KiB
C++

/*
* Copyright (C) 2012 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 COMPUTER, 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 RenderGeometryMap_h
#define RenderGeometryMap_h
#include "sky/engine/core/rendering/RenderGeometryMapStep.h"
#include "sky/engine/core/rendering/RenderObject.h"
#include "sky/engine/platform/geometry/FloatPoint.h"
#include "sky/engine/platform/geometry/FloatQuad.h"
#include "sky/engine/platform/geometry/IntSize.h"
#include "sky/engine/platform/geometry/LayoutSize.h"
#include "sky/engine/wtf/OwnPtr.h"
namespace blink {
class RenderLayer;
class RenderLayerModelObject;
class TransformationMatrix;
class TransformState;
// Can be used while walking the Renderer tree to cache data about offsets and transforms.
class RenderGeometryMap {
WTF_MAKE_NONCOPYABLE(RenderGeometryMap);
public:
RenderGeometryMap(MapCoordinatesFlags = UseTransforms);
~RenderGeometryMap();
MapCoordinatesFlags mapCoordinatesFlags() const { return m_mapCoordinatesFlags; }
FloatRect absoluteRect(const FloatRect& rect) const
{
return mapToContainer(rect, 0).boundingBox();
}
// Map to a container. Will assert that the container has been pushed onto this map.
// A null container maps through the RenderView (including its scale transform, if any).
// If the container is the RenderView, the scroll offset is applied, but not the scale.
FloatPoint mapToContainer(const FloatPoint&, const RenderLayerModelObject*) const;
FloatQuad mapToContainer(const FloatRect&, const RenderLayerModelObject*) const;
// Called by code walking the renderer or layer trees.
void pushMappingsToAncestor(const RenderLayer*, const RenderLayer* ancestorLayer);
void popMappingsToAncestor(const RenderLayer*);
void pushMappingsToAncestor(const RenderObject*, const RenderLayerModelObject* ancestorRenderer);
void popMappingsToAncestor(const RenderLayerModelObject*);
// The following methods should only be called by renderers inside a call to pushMappingsToAncestor().
// Push geometry info between this renderer and some ancestor. The ancestor must be its container() or some
// stacking context between the renderer and its container.
void push(const RenderObject*, const LayoutSize&, bool accumulatingTransform = false, bool isNonUniform = false, bool hasTransform = false);
void push(const RenderObject*, const TransformationMatrix&, bool accumulatingTransform = false, bool isNonUniform = false, bool hasTransform = false);
private:
void mapToContainer(TransformState&, const RenderLayerModelObject* container = 0) const;
void stepInserted(const RenderGeometryMapStep&);
void stepRemoved(const RenderGeometryMapStep&);
bool hasNonUniformStep() const { return m_nonUniformStepsCount; }
bool hasTransformStep() const { return m_transformedStepsCount; }
#ifndef NDEBUG
void dumpSteps() const;
#endif
#if ENABLE(ASSERT)
bool isTopmostRenderView(const RenderObject* renderer) const;
#endif
typedef Vector<RenderGeometryMapStep, 32> RenderGeometryMapSteps;
size_t m_insertionPosition;
int m_nonUniformStepsCount;
int m_transformedStepsCount;
RenderGeometryMapSteps m_mapping;
LayoutSize m_accumulatedOffset;
MapCoordinatesFlags m_mapCoordinatesFlags;
};
} // namespace blink
#endif // RenderGeometryMap_h