1 | /* |
2 | * Copyright (C) 2006 Apple Inc. |
3 | * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies) |
4 | * |
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. |
9 | * |
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. |
14 | * |
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. |
19 | * |
20 | */ |
21 | |
22 | #pragma once |
23 | |
24 | #include "FloatQuad.h" |
25 | #include "FloatRect.h" |
26 | #include "LayoutRect.h" |
27 | #include "RoundedRect.h" |
28 | #include <wtf/Forward.h> |
29 | |
30 | namespace WebCore { |
31 | |
32 | class HitTestLocation { |
33 | public: |
34 | WEBCORE_EXPORT HitTestLocation(); |
35 | HitTestLocation(const LayoutPoint&); |
36 | WEBCORE_EXPORT HitTestLocation(const FloatPoint&); |
37 | HitTestLocation(const FloatPoint&, const FloatQuad&); |
38 | // Pass non-zero padding values to perform a rect-based hit test. |
39 | HitTestLocation(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding); |
40 | // Make a copy the HitTestLocation in a new region by applying given offset to internal point and area. |
41 | HitTestLocation(const HitTestLocation&, const LayoutSize& offset); |
42 | WEBCORE_EXPORT HitTestLocation(const HitTestLocation&); |
43 | WEBCORE_EXPORT ~HitTestLocation(); |
44 | HitTestLocation& operator=(const HitTestLocation&); |
45 | |
46 | const LayoutPoint& point() const { return m_point; } |
47 | IntPoint roundedPoint() const { return roundedIntPoint(m_point); } |
48 | |
49 | // Rect-based hit test related methods. |
50 | bool isRectBasedTest() const { return m_isRectBased; } |
51 | bool isRectilinear() const { return m_isRectilinear; } |
52 | IntRect boundingBox() const { return m_boundingBox; } |
53 | |
54 | WEBCORE_EXPORT static IntRect rectForPoint(const LayoutPoint&, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding); |
55 | int topPadding() const { return roundedPoint().y() - m_boundingBox.y(); } |
56 | int rightPadding() const { return m_boundingBox.maxX() - roundedPoint().x() - 1; } |
57 | int bottomPadding() const { return m_boundingBox.maxY() - roundedPoint().y() - 1; } |
58 | int leftPadding() const { return roundedPoint().x() - m_boundingBox.x(); } |
59 | |
60 | bool intersects(const LayoutRect&) const; |
61 | bool intersects(const FloatRect&) const; |
62 | bool intersects(const RoundedRect&) const; |
63 | |
64 | const FloatPoint& transformedPoint() const { return m_transformedPoint; } |
65 | const FloatQuad& transformedRect() const { return m_transformedRect; } |
66 | |
67 | private: |
68 | template<typename RectType> |
69 | bool intersectsRect(const RectType&) const; |
70 | void move(const LayoutSize& offset); |
71 | |
72 | // This is cached forms of the more accurate point and area below. |
73 | LayoutPoint m_point; |
74 | IntRect m_boundingBox; |
75 | |
76 | FloatPoint m_transformedPoint; |
77 | FloatQuad m_transformedRect; |
78 | |
79 | bool m_isRectBased; |
80 | bool m_isRectilinear; |
81 | }; |
82 | |
83 | } // namespace WebCore |
84 | |