140 lines
5.3 KiB
C++
140 lines
5.3 KiB
C++
/*
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* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
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* (C) 2000 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
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* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "AffineTransform.h"
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#include "GraphicsContext.h"
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#include "IntRect.h"
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#include "LayoutRect.h"
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#include "PaintPhase.h"
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#include <limits>
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#include <wtf/HashMap.h>
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#include <wtf/ListHashSet.h>
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#include <wtf/OptionSet.h>
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namespace WebCore {
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class EventRegionContext;
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class OverlapTestRequestClient;
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class RenderInline;
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class RenderLayer;
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class RenderLayerModelObject;
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class RenderObject;
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typedef HashMap<OverlapTestRequestClient*, IntRect> OverlapTestRequestMap;
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/*
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* Paint the object and its children, clipped by (x|y|w|h).
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* (tx|ty) is the calculated position of the parent
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*/
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struct PaintInfo {
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PaintInfo(GraphicsContext& newContext, const LayoutRect& newRect, PaintPhase newPhase, OptionSet<PaintBehavior> newPaintBehavior,
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RenderObject* newSubtreePaintRoot = nullptr, ListHashSet<RenderInline*>* newOutlineObjects = nullptr,
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OverlapTestRequestMap* overlapTestRequests = nullptr, const RenderLayerModelObject* newPaintContainer = nullptr,
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const RenderLayer* enclosingSelfPaintingLayer = nullptr, bool newRequireSecurityOriginAccessForWidgets = false)
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: rect(newRect)
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, phase(newPhase)
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, paintBehavior(newPaintBehavior)
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, subtreePaintRoot(newSubtreePaintRoot)
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, outlineObjects(newOutlineObjects)
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, overlapTestRequests(overlapTestRequests)
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, paintContainer(newPaintContainer)
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, requireSecurityOriginAccessForWidgets(newRequireSecurityOriginAccessForWidgets)
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, m_enclosingSelfPaintingLayer(enclosingSelfPaintingLayer)
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, m_context(&newContext)
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{
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}
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GraphicsContext& context() const
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{
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ASSERT(m_context);
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return *m_context;
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}
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void setContext(GraphicsContext& context)
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{
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m_context = &context;
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}
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void updateSubtreePaintRootForChildren(const RenderObject* renderer)
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{
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if (!subtreePaintRoot)
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return;
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// If we're the painting root, kids draw normally, and see root of nullptr.
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if (subtreePaintRoot == renderer) {
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subtreePaintRoot = nullptr;
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return;
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}
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}
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bool shouldPaintWithinRoot(const RenderObject& renderer) const
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{
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return !subtreePaintRoot || subtreePaintRoot == &renderer;
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}
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bool forceTextColor() const { return forceBlackText() || forceWhiteText(); }
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bool forceBlackText() const { return paintBehavior.contains(PaintBehavior::ForceBlackText); }
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bool forceWhiteText() const { return paintBehavior.contains(PaintBehavior::ForceWhiteText); }
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Color forcedTextColor() const { return forceBlackText() ? Color::black : Color::white; }
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bool skipRootBackground() const { return paintBehavior.contains(PaintBehavior::SkipRootBackground); }
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bool paintRootBackgroundOnly() const { return paintBehavior.contains(PaintBehavior::RootBackgroundOnly); }
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const RenderLayer* enclosingSelfPaintingLayer() const { return m_enclosingSelfPaintingLayer; }
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void applyTransform(const AffineTransform& localToAncestorTransform)
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{
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if (localToAncestorTransform.isIdentity())
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return;
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context().concatCTM(localToAncestorTransform);
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if (rect.isInfinite())
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return;
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FloatRect tranformedRect(localToAncestorTransform.inverse().value_or(AffineTransform()).mapRect(rect));
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rect.setLocation(LayoutPoint(tranformedRect.location()));
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rect.setSize(LayoutSize(tranformedRect.size()));
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}
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LayoutRect rect;
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PaintPhase phase;
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OptionSet<PaintBehavior> paintBehavior;
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RenderObject* subtreePaintRoot; // used to draw just one element and its visual children
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ListHashSet<RenderInline*>* outlineObjects; // used to list outlines that should be painted by a block with inline children
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OverlapTestRequestMap* overlapTestRequests;
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const RenderLayerModelObject* paintContainer; // the layer object that originates the current painting
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bool requireSecurityOriginAccessForWidgets { false };
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const RenderLayer* m_enclosingSelfPaintingLayer { nullptr };
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EventRegionContext* eventRegionContext { nullptr }; // For PaintPhase::EventRegion.
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private:
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GraphicsContext* m_context;
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};
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} // namespace WebCore
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