2 * Copyright (C) 2006 Apple Computer, Inc.
3 * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
22 #ifndef HitTestLocation_h
23 #define HitTestLocation_h
25 #include "platform/geometry/FloatQuad.h"
26 #include "platform/geometry/FloatRect.h"
27 #include "platform/geometry/LayoutRect.h"
28 #include "platform/geometry/RoundedRect.h"
29 #include "wtf/Forward.h"
30 #include "wtf/ListHashSet.h"
31 #include "wtf/OwnPtr.h"
32 #include "wtf/RefPtr.h"
36 class HitTestLocation {
39 // Note that all points are in contents (aka "page") coordinate space for the
40 // document that is being hit tested.
42 HitTestLocation(const LayoutPoint&);
43 HitTestLocation(const FloatPoint&);
44 HitTestLocation(const FloatPoint&, const FloatQuad&);
45 // Pass non-zero padding values to perform a rect-based hit test.
46 HitTestLocation(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
47 HitTestLocation(const HitTestLocation&, const LayoutSize& offset);
48 HitTestLocation(const HitTestLocation&);
50 HitTestLocation& operator=(const HitTestLocation&);
52 const LayoutPoint& point() const { return m_point; }
53 IntPoint roundedPoint() const { return roundedIntPoint(m_point); }
55 // Rect-based hit test related methods.
56 bool isRectBasedTest() const { return m_isRectBased; }
57 bool isRectilinear() const { return m_isRectilinear; }
58 IntRect boundingBox() const { return m_boundingBox; }
60 static IntRect rectForPoint(const LayoutPoint&, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
61 int topPadding() const { return roundedPoint().y() - m_boundingBox.y(); }
62 int rightPadding() const { return m_boundingBox.maxX() - roundedPoint().x() - 1; }
63 int bottomPadding() const { return m_boundingBox.maxY() - roundedPoint().y() - 1; }
64 int leftPadding() const { return roundedPoint().x() - m_boundingBox.x(); }
66 bool intersects(const LayoutRect&) const;
67 bool intersects(const FloatRect&) const;
68 bool intersects(const RoundedRect&) const;
69 bool containsPoint(const FloatPoint&) const;
71 const FloatPoint& transformedPoint() const { return m_transformedPoint; }
72 const FloatQuad& transformedRect() const { return m_transformedRect; }
75 template<typename RectType>
76 bool intersectsRect(const RectType&) const;
77 void move(const LayoutSize& offset);
79 // This is cached forms of the more accurate point and area below.
81 IntRect m_boundingBox;
83 FloatPoint m_transformedPoint;
84 FloatQuad m_transformedRect;
92 #endif // HitTestLocation_h