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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef PaintInfo_h
#define PaintInfo_h
#include <limits>
#include "core/platform/graphics/GraphicsContext.h"
#include "core/platform/graphics/IntRect.h"
#include "core/platform/graphics/LayoutRect.h"
#include "core/platform/graphics/transforms/AffineTransform.h"
#include "core/rendering/PaintPhase.h"
#include "wtf/HashMap.h"
#include "wtf/ListHashSet.h"
namespace WebCore {
class RenderInline;
class RenderLayerModelObject;
class RenderObject;
class RenderRegion;
class RenderWidget;
typedef HashMap<RenderWidget*, IntRect> OverlapTestRequestMap;
/*
* Paint the object and its children, clipped by (x|y|w|h).
* (tx|ty) is the calculated position of the parent
*/
struct PaintInfo {
PaintInfo(GraphicsContext* newContext, const IntRect& newRect, PaintPhase newPhase, PaintBehavior newPaintBehavior,
RenderObject* newPaintingRoot = 0, RenderRegion* region = 0, ListHashSet<RenderInline*>* newOutlineObjects = 0,
OverlapTestRequestMap* overlapTestRequests = 0, const RenderLayerModelObject* newPaintContainer = 0)
: context(newContext)
, rect(newRect)
, phase(newPhase)
, paintBehavior(newPaintBehavior)
, paintingRoot(newPaintingRoot)
, renderRegion(region)
, overlapTestRequests(overlapTestRequests)
, m_paintContainer(newPaintContainer)
, m_outlineObjects(newOutlineObjects)
{
}
void updatePaintingRootForChildren(const RenderObject* renderer)
{
if (!paintingRoot)
return;
// If we're the painting root, kids draw normally, and see root of 0.
if (paintingRoot == renderer) {
paintingRoot = 0;
return;
}
}
bool shouldPaintWithinRoot(const RenderObject* renderer) const
{
return !paintingRoot || paintingRoot == renderer;
}
bool forceBlackText() const { return paintBehavior & PaintBehaviorForceBlackText; }
bool skipRootBackground() const { return paintBehavior & PaintBehaviorSkipRootBackground; }
bool paintRootBackgroundOnly() const { return paintBehavior & PaintBehaviorRootBackgroundOnly; }
void applyTransform(const AffineTransform& localToAncestorTransform)
{
if (localToAncestorTransform.isIdentity())
return;
context->concatCTM(localToAncestorTransform);
if (rect == infiniteRect())
return;
rect = localToAncestorTransform.inverse().mapRect(rect);
}
static IntRect infiniteRect() { return IntRect(LayoutRect::infiniteRect()); }
const RenderLayerModelObject* paintContainer() const { return m_paintContainer; }
ListHashSet<RenderInline*>* outlineObjects() { return m_outlineObjects; }
void setOutlineObjects(ListHashSet<RenderInline*>* objects) { m_outlineObjects = objects; }
// FIXME: Introduce setters/getters at some point. Requires a lot of changes throughout rendering/.
GraphicsContext* context;
IntRect rect;
PaintPhase phase;
PaintBehavior paintBehavior;
RenderObject* paintingRoot; // used to draw just one element and its visual kids
RenderRegion* renderRegion;
OverlapTestRequestMap* overlapTestRequests;
private:
const RenderLayerModelObject* m_paintContainer; // the layer object that originates the current painting
ListHashSet<RenderInline*>* m_outlineObjects; // used to list outlines that should be painted by a block with inline children
};
} // namespace WebCore
#endif // PaintInfo_h
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