| /* |
| * Copyright (C) 2012 Adobe Systems Incorporated. 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 THE COPYRIGHT HOLDER “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 THE COPYRIGHT HOLDER 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 ShapeOutsideInfo_h |
| #define ShapeOutsideInfo_h |
| |
| #include "core/rendering/shapes/Shape.h" |
| #include "core/rendering/style/RenderStyle.h" |
| #include "core/rendering/style/ShapeValue.h" |
| #include "platform/geometry/FloatRect.h" |
| #include "platform/geometry/LayoutSize.h" |
| #include "wtf/OwnPtr.h" |
| |
| namespace blink { |
| |
| class RenderBlockFlow; |
| class RenderBox; |
| class FloatingObject; |
| |
| class ShapeOutsideInfo FINAL { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| void setReferenceBoxLogicalSize(LayoutSize); |
| |
| LayoutUnit shapeLogicalTop() const { return computedShape().shapeMarginLogicalBoundingBox().y() + logicalTopOffset(); } |
| LayoutUnit shapeLogicalBottom() const { return computedShape().shapeMarginLogicalBoundingBox().maxY() + logicalTopOffset(); } |
| LayoutUnit shapeLogicalLeft() const { return computedShape().shapeMarginLogicalBoundingBox().x() + logicalLeftOffset(); } |
| LayoutUnit shapeLogicalRight() const { return computedShape().shapeMarginLogicalBoundingBox().maxX() + logicalLeftOffset(); } |
| LayoutUnit shapeLogicalWidth() const { return computedShape().shapeMarginLogicalBoundingBox().width(); } |
| LayoutUnit shapeLogicalHeight() const { return computedShape().shapeMarginLogicalBoundingBox().height(); } |
| |
| LayoutUnit logicalLineTop() const { return m_referenceBoxLineTop + logicalTopOffset(); } |
| LayoutUnit logicalLineBottom() const { return m_referenceBoxLineTop + m_lineHeight + logicalTopOffset(); } |
| |
| LayoutUnit leftMarginBoxDelta() const { return m_leftMarginBoxDelta; } |
| LayoutUnit rightMarginBoxDelta() const { return m_rightMarginBoxDelta; } |
| bool lineOverlapsShape() const { return m_lineOverlapsShape; } |
| |
| static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox& renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); } |
| static bool isEnabledFor(const RenderBox&); |
| void updateDeltasForContainingBlockLine(const RenderBlockFlow&, const FloatingObject&, LayoutUnit lineTop, LayoutUnit lineHeight); |
| |
| bool lineOverlapsShapeBounds() const |
| { |
| return computedShape().lineOverlapsShapeMarginBounds(m_referenceBoxLineTop, m_lineHeight); |
| } |
| |
| static ShapeOutsideInfo& ensureInfo(const RenderBox& key) |
| { |
| InfoMap& infoMap = ShapeOutsideInfo::infoMap(); |
| if (ShapeOutsideInfo* info = infoMap.get(&key)) |
| return *info; |
| InfoMap::AddResult result = infoMap.add(&key, ShapeOutsideInfo::createInfo(key)); |
| return *result.storedValue->value; |
| } |
| static void removeInfo(const RenderBox& key) { infoMap().remove(&key); } |
| static ShapeOutsideInfo* info(const RenderBox& key) { return infoMap().get(&key); } |
| |
| void markShapeAsDirty() { m_shape.clear(); } |
| bool isShapeDirty() { return !m_shape.get(); } |
| LayoutSize shapeSize() const { return m_referenceBoxLogicalSize; } |
| |
| LayoutRect computedShapePhysicalBoundingBox() const; |
| FloatPoint shapeToRendererPoint(FloatPoint) const; |
| FloatSize shapeToRendererSize(FloatSize) const; |
| const Shape& computedShape() const; |
| |
| protected: |
| ShapeOutsideInfo(const RenderBox& renderer) |
| : m_renderer(renderer) |
| , m_lineOverlapsShape(false) |
| { } |
| |
| private: |
| PassOwnPtr<Shape> createShapeForImage(StyleImage*, float shapeImageThreshold, WritingMode, float margin) const; |
| |
| LayoutUnit logicalTopOffset() const; |
| LayoutUnit logicalLeftOffset() const; |
| |
| typedef HashMap<const RenderBox*, OwnPtr<ShapeOutsideInfo> > InfoMap; |
| static InfoMap& infoMap() |
| { |
| DEFINE_STATIC_LOCAL(InfoMap, staticInfoMap, ()); |
| return staticInfoMap; |
| } |
| |
| LayoutUnit m_referenceBoxLineTop; |
| LayoutUnit m_lineHeight; |
| |
| const RenderBox& m_renderer; |
| mutable OwnPtr<Shape> m_shape; |
| LayoutSize m_referenceBoxLogicalSize; |
| LayoutUnit m_leftMarginBoxDelta; |
| LayoutUnit m_rightMarginBoxDelta; |
| LayoutUnit m_borderBoxLineTop; |
| bool m_lineOverlapsShape; |
| }; |
| |
| } |
| #endif |