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102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
/*
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* Copyright (C) 2006 Apple Computer, Inc.
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* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
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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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#ifndef SKY_ENGINE_CORE_RENDERING_HITTESTLOCATION_H_
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#define SKY_ENGINE_CORE_RENDERING_HITTESTLOCATION_H_
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#include "flutter/sky/engine/platform/geometry/FloatQuad.h"
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#include "flutter/sky/engine/platform/geometry/FloatRect.h"
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#include "flutter/sky/engine/platform/geometry/LayoutRect.h"
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#include "flutter/sky/engine/platform/geometry/RoundedRect.h"
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#include "flutter/sky/engine/wtf/Forward.h"
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#include "flutter/sky/engine/wtf/ListHashSet.h"
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#include "flutter/sky/engine/wtf/OwnPtr.h"
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#include "flutter/sky/engine/wtf/RefPtr.h"
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namespace blink {
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class HitTestLocation {
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public:
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HitTestLocation();
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HitTestLocation(const LayoutPoint&);
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HitTestLocation(const FloatPoint&);
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HitTestLocation(const FloatPoint&, const FloatQuad&);
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// Pass non-zero padding values to perform a rect-based hit test.
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HitTestLocation(const LayoutPoint& centerPoint,
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unsigned topPadding,
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unsigned rightPadding,
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unsigned bottomPadding,
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unsigned leftPadding);
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HitTestLocation(const HitTestLocation&, const LayoutSize& offset);
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HitTestLocation(const HitTestLocation&);
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~HitTestLocation();
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HitTestLocation& operator=(const HitTestLocation&);
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const LayoutPoint& point() const { return m_point; }
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IntPoint roundedPoint() const { return roundedIntPoint(m_point); }
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// Rect-based hit test related methods.
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bool isRectBasedTest() const { return m_isRectBased; }
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bool isRectilinear() const { return m_isRectilinear; }
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IntRect boundingBox() const { return m_boundingBox; }
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static IntRect rectForPoint(const LayoutPoint&,
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unsigned topPadding,
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unsigned rightPadding,
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unsigned bottomPadding,
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unsigned leftPadding);
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int topPadding() const { return roundedPoint().y() - m_boundingBox.y(); }
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int rightPadding() const {
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return m_boundingBox.maxX() - roundedPoint().x() - 1;
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}
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int bottomPadding() const {
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return m_boundingBox.maxY() - roundedPoint().y() - 1;
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}
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int leftPadding() const { return roundedPoint().x() - m_boundingBox.x(); }
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bool intersects(const LayoutRect&) const;
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bool intersects(const FloatRect&) const;
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bool intersects(const RoundedRect&) const;
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bool containsPoint(const FloatPoint&) const;
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const FloatPoint& transformedPoint() const { return m_transformedPoint; }
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const FloatQuad& transformedRect() const { return m_transformedRect; }
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private:
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template <typename RectType>
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bool intersectsRect(const RectType&) const;
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void move(const LayoutSize& offset);
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// This is cached forms of the more accurate point and area below.
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LayoutPoint m_point;
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IntRect m_boundingBox;
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FloatPoint m_transformedPoint;
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FloatQuad m_transformedRect;
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bool m_isRectBased;
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bool m_isRectilinear;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_RENDERING_HITTESTLOCATION_H_
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