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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.
*
*/
#pragma once
#include "AccessibilityRegionContext.h"
#include "AffineTransform.h"
#include "EventRegion.h"
#include "GraphicsContext.h"
#include "IntRect.h"
#include "LayoutRect.h"
#include "PaintPhase.h"
#include <limits>
#include <wtf/HashMap.h>
#include <wtf/OptionSet.h>
#include <wtf/WeakListHashSet.h>
namespace WebCore {
class OverlapTestRequestClient;
class RenderInline;
class RenderLayer;
class RenderLayerModelObject;
class RenderObject;
typedef UncheckedKeyHashMap<OverlapTestRequestClient*, 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 LayoutRect& newRect, PaintPhase newPhase, OptionSet<PaintBehavior> newPaintBehavior,
RenderObject* newSubtreePaintRoot = nullptr, SingleThreadWeakListHashSet<RenderInline>* newOutlineObjects = nullptr,
OverlapTestRequestMap* overlapTestRequests = nullptr, const RenderLayerModelObject* newPaintContainer = nullptr,
const RenderLayer* enclosingSelfPaintingLayer = nullptr, bool newRequireSecurityOriginAccessForWidgets = false)
: rect(newRect)
, phase(newPhase)
, paintBehavior(newPaintBehavior)
, subtreePaintRoot(newSubtreePaintRoot)
, outlineObjects(newOutlineObjects)
, overlapTestRequests(overlapTestRequests)
, paintContainer(newPaintContainer)
, requireSecurityOriginAccessForWidgets(newRequireSecurityOriginAccessForWidgets)
, m_enclosingSelfPaintingLayer(enclosingSelfPaintingLayer)
, m_context(&newContext)
{
}
GraphicsContext& context() const
{
ASSERT(m_context);
return *m_context;
}
void setContext(GraphicsContext& context)
{
m_context = &context;
}
void updateSubtreePaintRootForChildren(const RenderObject* renderer)
{
if (!subtreePaintRoot)
return;
// If we're the painting root, kids draw normally, and see root of nullptr.
if (subtreePaintRoot == renderer) {
subtreePaintRoot = nullptr;
return;
}
}
bool shouldPaintWithinRoot(const RenderObject& renderer) const
{
return !subtreePaintRoot || subtreePaintRoot == &renderer;
}
bool forceTextColor() const { return forceBlackText() || forceWhiteText(); }
bool forceBlackText() const { return paintBehavior.contains(PaintBehavior::ForceBlackText); }
bool forceWhiteText() const { return paintBehavior.contains(PaintBehavior::ForceWhiteText); }
Color forcedTextColor() const { return forceBlackText() ? Color::black : Color::white; }
bool skipRootBackground() const { return paintBehavior.contains(PaintBehavior::SkipRootBackground); }
bool paintRootBackgroundOnly() const { return paintBehavior.contains(PaintBehavior::RootBackgroundOnly); }
const RenderLayer* enclosingSelfPaintingLayer() const { return m_enclosingSelfPaintingLayer; }
void applyTransform(const AffineTransform& localToAncestorTransform)
{
if (localToAncestorTransform.isIdentity())
return;
context().concatCTM(localToAncestorTransform);
if (rect.isInfinite())
return;
FloatRect tranformedRect(valueOrDefault(localToAncestorTransform.inverse()).mapRect(rect));
rect.setLocation(LayoutPoint(tranformedRect.location()));
rect.setSize(LayoutSize(tranformedRect.size()));
}
EventRegionContext* eventRegionContext() { return dynamicDowncast<EventRegionContext>(regionContext); }
AccessibilityRegionContext* accessibilityRegionContext() { return dynamicDowncast<AccessibilityRegionContext>(regionContext); }
LayoutRect rect;
PaintPhase phase;
OptionSet<PaintBehavior> paintBehavior;
RenderObject* subtreePaintRoot; // used to draw just one element and its visual children
SingleThreadWeakListHashSet<RenderInline>* outlineObjects; // used to list outlines that should be painted by a block with inline children
OverlapTestRequestMap* overlapTestRequests;
const RenderLayerModelObject* paintContainer; // the layer object that originates the current painting
bool requireSecurityOriginAccessForWidgets { false };
const RenderLayer* m_enclosingSelfPaintingLayer { nullptr };
RegionContext* regionContext { nullptr }; // For PaintPhase::EventRegion and PaintPhase::Accessibility.
private:
GraphicsContext* m_context;
};
} // namespace WebCore
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