webengine/osswebengine/WebCore/platform/graphics/IntRect.h
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/IntRect.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2003, 2006 Apple Computer, 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
+ * 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/Platform.h>
+
+#if PLATFORM(CG)
+typedef struct CGRect CGRect;
+#endif
+
+#if PLATFORM(MAC)
+#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)
+class QRect;
+#endif
+#if PLATFORM(SYMBIAN)
+class TRect;
+#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(); }
+
+    void move(const IntSize& s) { m_location += s; } 
+    void move(int dx, int dy) { m_location.move(dx, dy); } 
+
+    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);
+
+#if PLATFORM(WIN)
+    IntRect(const RECT&);
+    operator RECT() const;
+#elif PLATFORM(QT)
+    IntRect(const QRect&);
+    operator QRect() const;
+#endif
+#if PLATFORM(SYMBIAN)
+    IntRect(const TRect&);
+    operator TRect() const;
+    TRect Rect() const;
+#endif
+
+#if PLATFORM(CG)
+    operator CGRect() const;
+#endif
+
+#if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
+    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;
+}
+
+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)
+IntRect enclosingIntRect(const NSRect&);
+#endif
+
+} // namespace WebCore
+
+#endif // IntRect_h