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