1 /*
2 * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef IntRect_h
27 #define IntRect_h
28
29 #include "IntPoint.h"
30 #include <wtf/Vector.h>
31
32 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
33 typedef struct CGRect CGRect;
34 #endif
35
36 #if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN)) || (PLATFORM(QT) && USE(QTKIT))
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(WIN)
45 typedef struct tagRECT RECT;
46 #elif PLATFORM(QT)
47 QT_BEGIN_NAMESPACE
48 class QRect;
49 QT_END_NAMESPACE
50 #elif PLATFORM(GTK)
51 #ifdef GTK_API_VERSION_2
52 typedef struct _GdkRectangle GdkRectangle;
53 #else
54 typedef struct _cairo_rectangle_int cairo_rectangle_int_t;
55 typedef cairo_rectangle_int_t GdkRectangle;
56 #endif
57 #elif PLATFORM(HAIKU)
58 class BRect;
59 #elif PLATFORM(EFL)
60 typedef struct _Eina_Rectangle Eina_Rectangle;
61 #endif
62
63 #if PLATFORM(WX)
64 class wxRect;
65 #endif
66
67 #if USE(SKIA)
68 struct SkRect;
69 struct SkIRect;
70 #endif
71
72 namespace WebCore {
73
74 class FloatRect;
75
76 class IntRect {
77 public:
IntRect()78 IntRect() { }
IntRect(const IntPoint & location,const IntSize & size)79 IntRect(const IntPoint& location, const IntSize& size)
80 : m_location(location), m_size(size) { }
IntRect(int x,int y,int width,int height)81 IntRect(int x, int y, int width, int height)
82 : m_location(IntPoint(x, y)), m_size(IntSize(width, height)) { }
83
84 explicit IntRect(const FloatRect& rect); // don't do this implicitly since it's lossy
85
location()86 IntPoint location() const { return m_location; }
size()87 IntSize size() const { return m_size; }
88
setLocation(const IntPoint & location)89 void setLocation(const IntPoint& location) { m_location = location; }
setSize(const IntSize & size)90 void setSize(const IntSize& size) { m_size = size; }
91
x()92 int x() const { return m_location.x(); }
y()93 int y() const { return m_location.y(); }
maxX()94 int maxX() const { return x() + width(); }
maxY()95 int maxY() const { return y() + height(); }
width()96 int width() const { return m_size.width(); }
height()97 int height() const { return m_size.height(); }
98
setX(int x)99 void setX(int x) { m_location.setX(x); }
setY(int y)100 void setY(int y) { m_location.setY(y); }
setWidth(int width)101 void setWidth(int width) { m_size.setWidth(width); }
setHeight(int height)102 void setHeight(int height) { m_size.setHeight(height); }
103
isEmpty()104 bool isEmpty() const { return m_size.isEmpty(); }
105
106 // NOTE: The result is rounded to integer values, and thus may be not the exact
107 // center point.
center()108 IntPoint center() const { return IntPoint(x() + width() / 2, y() + height() / 2); }
109
move(const IntSize & s)110 void move(const IntSize& s) { m_location += s; }
move(int dx,int dy)111 void move(int dx, int dy) { m_location.move(dx, dy); }
112
shiftXEdgeTo(int edge)113 void shiftXEdgeTo(int edge)
114 {
115 int delta = edge - x();
116 setX(edge);
117 setWidth(std::max(0, width() - delta));
118 }
shiftMaxXEdgeTo(int edge)119 void shiftMaxXEdgeTo(int edge)
120 {
121 int delta = edge - maxX();
122 setWidth(std::max(0, width() + delta));
123 }
shiftYEdgeTo(int edge)124 void shiftYEdgeTo(int edge)
125 {
126 int delta = edge - y();
127 setY(edge);
128 setHeight(std::max(0, height() - delta));
129 }
shiftMaxYEdgeTo(int edge)130 void shiftMaxYEdgeTo(int edge)
131 {
132 int delta = edge - maxY();
133 setHeight(std::max(0, height() + delta));
134 }
135
minXMinYCorner()136 IntPoint minXMinYCorner() const { return m_location; } // typically topLeft
maxXMinYCorner()137 IntPoint maxXMinYCorner() const { return IntPoint(m_location.x() + m_size.width(), m_location.y()); } // typically topRight
minXMaxYCorner()138 IntPoint minXMaxYCorner() const { return IntPoint(m_location.x(), m_location.y() + m_size.height()); } // typically bottomLeft
maxXMaxYCorner()139 IntPoint maxXMaxYCorner() const { return IntPoint(m_location.x() + m_size.width(), m_location.y() + m_size.height()); } // typically bottomRight
140
141 bool intersects(const IntRect&) const;
142 bool contains(const IntRect&) const;
143
144 // This checks to see if the rect contains x,y in the traditional sense.
145 // Equivalent to checking if the rect contains a 1x1 rect below and to the right of (px,py).
contains(int px,int py)146 bool contains(int px, int py) const
147 { return px >= x() && px < maxX() && py >= y() && py < maxY(); }
contains(const IntPoint & point)148 bool contains(const IntPoint& point) const { return contains(point.x(), point.y()); }
149
150 void intersect(const IntRect&);
151 void unite(const IntRect&);
152 void uniteIfNonZero(const IntRect&);
153
inflateX(int dx)154 void inflateX(int dx)
155 {
156 m_location.setX(m_location.x() - dx);
157 m_size.setWidth(m_size.width() + dx + dx);
158 }
inflateY(int dy)159 void inflateY(int dy)
160 {
161 m_location.setY(m_location.y() - dy);
162 m_size.setHeight(m_size.height() + dy + dy);
163 }
inflate(int d)164 void inflate(int d) { inflateX(d); inflateY(d); }
165 void scale(float s);
166
transposedRect()167 IntRect transposedRect() const { return IntRect(m_location.transposedPoint(), m_size.transposedSize()); }
168
169 #if PLATFORM(WX)
170 IntRect(const wxRect&);
171 operator wxRect() const;
172 #endif
173
174 #if PLATFORM(WIN)
175 IntRect(const RECT&);
176 operator RECT() const;
177 #elif PLATFORM(QT)
178 IntRect(const QRect&);
179 operator QRect() const;
180 #elif PLATFORM(GTK)
181 IntRect(const GdkRectangle&);
182 operator GdkRectangle() const;
183 #elif PLATFORM(HAIKU)
184 explicit IntRect(const BRect&);
185 operator BRect() const;
186 #elif PLATFORM(EFL)
187 explicit IntRect(const Eina_Rectangle&);
188 operator Eina_Rectangle() const;
189 #endif
190
191 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
192 operator CGRect() const;
193 #endif
194
195 #if USE(SKIA)
196 IntRect(const SkIRect&);
197 operator SkRect() const;
198 operator SkIRect() const;
199 #endif
200
201 #if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
202 || (PLATFORM(CHROMIUM) && OS(DARWIN)) || (PLATFORM(QT) && USE(QTKIT))
203 operator NSRect() const;
204 #endif
205
206 private:
207 IntPoint m_location;
208 IntSize m_size;
209 };
210
intersection(const IntRect & a,const IntRect & b)211 inline IntRect intersection(const IntRect& a, const IntRect& b)
212 {
213 IntRect c = a;
214 c.intersect(b);
215 return c;
216 }
217
unionRect(const IntRect & a,const IntRect & b)218 inline IntRect unionRect(const IntRect& a, const IntRect& b)
219 {
220 IntRect c = a;
221 c.unite(b);
222 return c;
223 }
224
225 IntRect unionRect(const Vector<IntRect>&);
226
227 inline bool operator==(const IntRect& a, const IntRect& b)
228 {
229 return a.location() == b.location() && a.size() == b.size();
230 }
231
232 inline bool operator!=(const IntRect& a, const IntRect& b)
233 {
234 return a.location() != b.location() || a.size() != b.size();
235 }
236
237 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
238 IntRect enclosingIntRect(const CGRect&);
239 #endif
240
241 #if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
242 || (PLATFORM(CHROMIUM) && OS(DARWIN)) || (PLATFORM(QT) && USE(QTKIT))
243 IntRect enclosingIntRect(const NSRect&);
244 #endif
245
246 } // namespace WebCore
247
248 #endif // IntRect_h
249