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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/graphics/IntRect.h
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/graphics/IntRect.h')
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+/*
+ * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef IntRect_h
+#define IntRect_h
+
+#include "IntPoint.h"
+#include <wtf/Vector.h>
+
+#if PLATFORM(CG)
+typedef struct CGRect CGRect;
+#endif
+
+#if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN))
+#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
+typedef struct CGRect NSRect;
+#else
+typedef struct _NSRect NSRect;
+#endif
+#endif
+
+#if PLATFORM(WIN)
+typedef struct tagRECT RECT;
+#elif PLATFORM(QT)
+QT_BEGIN_NAMESPACE
+class QRect;
+QT_END_NAMESPACE
+#elif PLATFORM(GTK)
+#ifdef GTK_API_VERSION_2
+typedef struct _GdkRectangle GdkRectangle;
+#else
+typedef struct _cairo_rectangle_int cairo_rectangle_int_t;
+typedef cairo_rectangle_int_t GdkRectangle;
+#endif
+#elif PLATFORM(HAIKU)
+class BRect;
+#elif PLATFORM(EFL)
+typedef struct _Eina_Rectangle Eina_Rectangle;
+#endif
+
+#if PLATFORM(WX)
+class wxRect;
+#endif
+
+#if PLATFORM(SKIA)
+struct SkRect;
+struct SkIRect;
+#endif
+
+namespace WebCore {
+
+class FloatRect;
+
+class IntRect {
+public:
+ IntRect() { }
+ IntRect(const IntPoint& location, const IntSize& size)
+ : m_location(location), m_size(size) { }
+ IntRect(int x, int y, int width, int height)
+ : m_location(IntPoint(x, y)), m_size(IntSize(width, height)) { }
+
+ explicit IntRect(const FloatRect& rect); // don't do this implicitly since it's lossy
+
+ IntPoint location() const { return m_location; }
+ IntSize size() const { return m_size; }
+
+ void setLocation(const IntPoint& location) { m_location = location; }
+ void setSize(const IntSize& size) { m_size = size; }
+
+ int x() const { return m_location.x(); }
+ int y() const { return m_location.y(); }
+ int width() const { return m_size.width(); }
+ int height() const { return m_size.height(); }
+
+ void setX(int x) { m_location.setX(x); }
+ void setY(int y) { m_location.setY(y); }
+ void setWidth(int width) { m_size.setWidth(width); }
+ void setHeight(int height) { m_size.setHeight(height); }
+
+ // Be careful with these functions. The point is considered to be to the right and below. These are not
+ // substitutes for right() and bottom().
+ IntPoint topLeft() const { return m_location; }
+ IntPoint topRight() const { return IntPoint(right() - 1, y()); }
+ IntPoint bottomLeft() const { return IntPoint(x(), bottom() - 1); }
+ IntPoint bottomRight() const { return IntPoint(right() - 1, bottom() - 1); }
+
+ bool isEmpty() const { return m_size.isEmpty(); }
+
+ int right() const { return x() + width(); }
+ int bottom() const { return y() + height(); }
+
+ // NOTE: The result is rounded to integer values, and thus may be not the exact
+ // center point.
+ IntPoint center() const { return IntPoint(x() + width() / 2, y() + height() / 2); }
+
+ void move(const IntSize& s) { m_location += s; }
+ void move(int dx, int dy) { m_location.move(dx, dy); }
+
+ void shiftLeftEdgeTo(int edge)
+ {
+ int delta = edge - x();
+ setX(edge);
+ setWidth(std::max(0, width() - delta));
+ }
+ void shiftRightEdgeTo(int edge)
+ {
+ int delta = edge - right();
+ setWidth(std::max(0, width() + delta));
+ }
+ void shiftTopEdgeTo(int edge)
+ {
+ int delta = edge - y();
+ setY(edge);
+ setHeight(std::max(0, height() - delta));
+ }
+ void shiftBottomEdgeTo(int edge)
+ {
+ int delta = edge - bottom();
+ setHeight(std::max(0, height() + delta));
+ }
+
+ bool intersects(const IntRect&) const;
+ bool contains(const IntRect&) const;
+
+ // This checks to see if the rect contains x,y in the traditional sense.
+ // Equivalent to checking if the rect contains a 1x1 rect below and to the right of (px,py).
+ bool contains(int px, int py) const
+ { return px >= x() && px < right() && py >= y() && py < bottom(); }
+ bool contains(const IntPoint& point) const { return contains(point.x(), point.y()); }
+
+ void intersect(const IntRect&);
+ void unite(const IntRect&);
+
+ void inflateX(int dx)
+ {
+ m_location.setX(m_location.x() - dx);
+ m_size.setWidth(m_size.width() + dx + dx);
+ }
+ void inflateY(int dy)
+ {
+ m_location.setY(m_location.y() - dy);
+ m_size.setHeight(m_size.height() + dy + dy);
+ }
+ void inflate(int d) { inflateX(d); inflateY(d); }
+ void scale(float s);
+
+ IntRect transposedRect() const { return IntRect(m_location.transposedPoint(), m_size.transposedSize()); }
+
+#if PLATFORM(WX)
+ IntRect(const wxRect&);
+ operator wxRect() const;
+#endif
+
+#if PLATFORM(WIN)
+ IntRect(const RECT&);
+ operator RECT() const;
+#elif PLATFORM(QT)
+ IntRect(const QRect&);
+ operator QRect() const;
+#elif PLATFORM(GTK)
+ IntRect(const GdkRectangle&);
+ operator GdkRectangle() const;
+#elif PLATFORM(HAIKU)
+ explicit IntRect(const BRect&);
+ operator BRect() const;
+#elif PLATFORM(EFL)
+ explicit IntRect(const Eina_Rectangle&);
+ operator Eina_Rectangle() const;
+#endif
+
+#if PLATFORM(CG)
+ operator CGRect() const;
+#endif
+
+#if PLATFORM(SKIA)
+ IntRect(const SkIRect&);
+ operator SkRect() const;
+ operator SkIRect() const;
+#endif
+
+#if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
+ || (PLATFORM(CHROMIUM) && OS(DARWIN))
+ operator NSRect() const;
+#endif
+
+private:
+ IntPoint m_location;
+ IntSize m_size;
+};
+
+inline IntRect intersection(const IntRect& a, const IntRect& b)
+{
+ IntRect c = a;
+ c.intersect(b);
+ return c;
+}
+
+inline IntRect unionRect(const IntRect& a, const IntRect& b)
+{
+ IntRect c = a;
+ c.unite(b);
+ return c;
+}
+
+IntRect unionRect(const Vector<IntRect>&);
+
+inline bool operator==(const IntRect& a, const IntRect& b)
+{
+ return a.location() == b.location() && a.size() == b.size();
+}
+
+inline bool operator!=(const IntRect& a, const IntRect& b)
+{
+ return a.location() != b.location() || a.size() != b.size();
+}
+
+#if PLATFORM(CG)
+IntRect enclosingIntRect(const CGRect&);
+#endif
+
+#if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
+ || (PLATFORM(CHROMIUM) && OS(DARWIN))
+IntRect enclosingIntRect(const NSRect&);
+#endif
+
+} // namespace WebCore
+
+#endif // IntRect_h