1 /*
2 * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2005 Nokia. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #ifndef FloatRect_h
28 #define FloatRect_h
29
30 #include "FloatPoint.h"
31
32 #if PLATFORM(CG)
33 typedef struct CGRect CGRect;
34 #endif
35
36 #if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN))
37 #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
38 typedef struct CGRect NSRect;
39 #else
40 typedef struct _NSRect NSRect;
41 #endif
42 #endif
43
44 #if PLATFORM(QT)
45 QT_BEGIN_NAMESPACE
46 class QRectF;
47 QT_END_NAMESPACE
48 #endif
49
50 #if PLATFORM(WX) && USE(WXGC)
51 class wxRect2DDouble;
52 #endif
53
54 #if PLATFORM(HAIKU)
55 class BRect;
56 #endif
57
58 #if PLATFORM(SKIA)
59 struct SkRect;
60 #endif
61
62 namespace WebCore {
63
64 #if PLATFORM(OPENVG)
65 class VGRect;
66 #endif
67
68 class IntRect;
69
70 class FloatRect {
71 public:
FloatRect()72 FloatRect() { }
FloatRect(const FloatPoint & location,const FloatSize & size)73 FloatRect(const FloatPoint& location, const FloatSize& size)
74 : m_location(location), m_size(size) { }
FloatRect(float x,float y,float width,float height)75 FloatRect(float x, float y, float width, float height)
76 : m_location(FloatPoint(x, y)), m_size(FloatSize(width, height)) { }
77 FloatRect(const IntRect&);
78
79 static FloatRect narrowPrecision(double x, double y, double width, double height);
80
location()81 FloatPoint location() const { return m_location; }
size()82 FloatSize size() const { return m_size; }
83
setLocation(const FloatPoint & location)84 void setLocation(const FloatPoint& location) { m_location = location; }
setSize(const FloatSize & size)85 void setSize(const FloatSize& size) { m_size = size; }
86
x()87 float x() const { return m_location.x(); }
y()88 float y() const { return m_location.y(); }
width()89 float width() const { return m_size.width(); }
height()90 float height() const { return m_size.height(); }
91
setX(float x)92 void setX(float x) { m_location.setX(x); }
setY(float y)93 void setY(float y) { m_location.setY(y); }
setWidth(float width)94 void setWidth(float width) { m_size.setWidth(width); }
setHeight(float height)95 void setHeight(float height) { m_size.setHeight(height); }
96
isEmpty()97 bool isEmpty() const { return m_size.isEmpty(); }
98
right()99 float right() const { return x() + width(); }
bottom()100 float bottom() const { return y() + height(); }
101
move(const FloatSize & delta)102 void move(const FloatSize& delta) { m_location += delta; }
move(float dx,float dy)103 void move(float dx, float dy) { m_location.move(dx, dy); }
104
105 bool intersects(const FloatRect&) const;
106 bool contains(const FloatRect&) const;
107
108 void intersect(const FloatRect&);
109 void unite(const FloatRect&);
110
111 // Note, this doesn't match what IntRect::contains(IntPoint&) does; the int version
112 // is really checking for containment of 1x1 rect, but that doesn't make sense with floats.
contains(float px,float py)113 bool contains(float px, float py) const
114 { return px >= x() && px <= right() && py >= y() && py <= bottom(); }
contains(const FloatPoint & point)115 bool contains(const FloatPoint& point) const { return contains(point.x(), point.y()); }
116
117
inflateX(float dx)118 void inflateX(float dx) {
119 m_location.setX(m_location.x() - dx);
120 m_size.setWidth(m_size.width() + dx + dx);
121 }
inflateY(float dy)122 void inflateY(float dy) {
123 m_location.setY(m_location.y() - dy);
124 m_size.setHeight(m_size.height() + dy + dy);
125 }
inflate(float d)126 void inflate(float d) { inflateX(d); inflateY(d); }
scale(float s)127 void scale(float s) { scale(s, s); }
128 void scale(float sx, float sy);
129
130 #if PLATFORM(CG)
131 FloatRect(const CGRect&);
132 operator CGRect() const;
133 #endif
134
135 #if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
136 || (PLATFORM(CHROMIUM) && OS(DARWIN))
137 FloatRect(const NSRect&);
138 operator NSRect() const;
139 #endif
140
141 #if PLATFORM(QT)
142 FloatRect(const QRectF&);
143 operator QRectF() const;
144 #endif
145
146 #if PLATFORM(WX) && USE(WXGC)
147 FloatRect(const wxRect2DDouble&);
148 operator wxRect2DDouble() const;
149 #endif
150
151 #if PLATFORM(HAIKU)
152 FloatRect(const BRect&);
153 operator BRect() const;
154 #endif
155
156 #if PLATFORM(SKIA)
157 FloatRect(const SkRect&);
158 operator SkRect() const;
159 #endif
160
161 #if PLATFORM(OPENVG)
162 operator VGRect() const;
163 #endif
164
165 private:
166 FloatPoint m_location;
167 FloatSize m_size;
168 };
169
intersection(const FloatRect & a,const FloatRect & b)170 inline FloatRect intersection(const FloatRect& a, const FloatRect& b)
171 {
172 FloatRect c = a;
173 c.intersect(b);
174 return c;
175 }
176
unionRect(const FloatRect & a,const FloatRect & b)177 inline FloatRect unionRect(const FloatRect& a, const FloatRect& b)
178 {
179 FloatRect c = a;
180 c.unite(b);
181 return c;
182 }
183
184
185 inline bool operator==(const FloatRect& a, const FloatRect& b)
186 {
187 return a.location() == b.location() && a.size() == b.size();
188 }
189
190 inline bool operator!=(const FloatRect& a, const FloatRect& b)
191 {
192 return a.location() != b.location() || a.size() != b.size();
193 }
194
195 IntRect enclosingIntRect(const FloatRect&);
196
197 // Map rect r from srcRect to an equivalent rect in destRect.
198 FloatRect mapRect(const FloatRect& r, const FloatRect& srcRect, const FloatRect& destRect);
199
200 }
201
202 #endif
203