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/*
* Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2005 Nokia. 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 FloatRect_h
#define FloatRect_h
#include "FloatPoint.h"
#if USE(CG) || USE(SKIA_ON_MAC_CHROME)
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(QT)
QT_BEGIN_NAMESPACE
class QRectF;
QT_END_NAMESPACE
#endif
#if PLATFORM(WX) && USE(WXGC)
class wxRect2DDouble;
#endif
#if PLATFORM(HAIKU)
class BRect;
#endif
#if USE(SKIA)
struct SkRect;
#endif
#if USE(CAIRO)
typedef struct _cairo_rectangle cairo_rectangle_t;
#endif
namespace WebCore {
#if PLATFORM(OPENVG)
class VGRect;
#endif
class IntRect;
class FloatRect {
public:
FloatRect() { }
FloatRect(const FloatPoint& location, const FloatSize& size)
: m_location(location), m_size(size) { }
FloatRect(float x, float y, float width, float height)
: m_location(FloatPoint(x, y)), m_size(FloatSize(width, height)) { }
FloatRect(const IntRect&);
static FloatRect narrowPrecision(double x, double y, double width, double height);
FloatPoint location() const { return m_location; }
FloatSize size() const { return m_size; }
void setLocation(const FloatPoint& location) { m_location = location; }
void setSize(const FloatSize& size) { m_size = size; }
float x() const { return m_location.x(); }
float y() const { return m_location.y(); }
float maxX() const { return x() + width(); }
float maxY() const { return y() + height(); }
float width() const { return m_size.width(); }
float height() const { return m_size.height(); }
void setX(float x) { m_location.setX(x); }
void setY(float y) { m_location.setY(y); }
void setWidth(float width) { m_size.setWidth(width); }
void setHeight(float height) { m_size.setHeight(height); }
bool isEmpty() const { return m_size.isEmpty(); }
FloatPoint center() const { return FloatPoint(x() + width() / 2, y() + height() / 2); }
void move(const FloatSize& delta) { m_location += delta; }
void move(float dx, float dy) { m_location.move(dx, dy); }
bool intersects(const FloatRect&) const;
bool contains(const FloatRect&) const;
void intersect(const FloatRect&);
void unite(const FloatRect&);
void uniteIfNonZero(const FloatRect&);
// Note, this doesn't match what IntRect::contains(IntPoint&) does; the int version
// is really checking for containment of 1x1 rect, but that doesn't make sense with floats.
bool contains(float px, float py) const
{ return px >= x() && px <= maxX() && py >= y() && py <= maxY(); }
bool contains(const FloatPoint& point) const { return contains(point.x(), point.y()); }
void inflateX(float dx) {
m_location.setX(m_location.x() - dx);
m_size.setWidth(m_size.width() + dx + dx);
}
void inflateY(float dy) {
m_location.setY(m_location.y() - dy);
m_size.setHeight(m_size.height() + dy + dy);
}
void inflate(float d) { inflateX(d); inflateY(d); }
void scale(float s) { scale(s, s); }
void scale(float sx, float sy);
// Re-initializes this rectangle to fit the sets of passed points.
void fitToPoints(const FloatPoint& p0, const FloatPoint& p1);
void fitToPoints(const FloatPoint& p0, const FloatPoint& p1, const FloatPoint& p2);
void fitToPoints(const FloatPoint& p0, const FloatPoint& p1, const FloatPoint& p2, const FloatPoint& p3);
#if USE(CG) || USE(SKIA_ON_MAC_CHROME)
FloatRect(const CGRect&);
operator CGRect() const;
#endif
#if (PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)) \
|| (PLATFORM(CHROMIUM) && OS(DARWIN))
FloatRect(const NSRect&);
operator NSRect() const;
#endif
#if PLATFORM(QT)
FloatRect(const QRectF&);
operator QRectF() const;
FloatRect normalized() const;
#endif
#if PLATFORM(WX) && USE(WXGC)
FloatRect(const wxRect2DDouble&);
operator wxRect2DDouble() const;
#endif
#if PLATFORM(HAIKU)
FloatRect(const BRect&);
operator BRect() const;
#endif
#if USE(SKIA)
FloatRect(const SkRect&);
operator SkRect() const;
#endif
#if PLATFORM(OPENVG)
operator VGRect() const;
#endif
#if USE(CAIRO)
FloatRect(const cairo_rectangle_t&);
operator cairo_rectangle_t() const;
#endif
private:
FloatPoint m_location;
FloatSize m_size;
void setLocationAndSizeFromEdges(float left, float top, float right, float bottom)
{
m_location.set(left, top);
m_size.setWidth(right - left);
m_size.setHeight(bottom - top);
}
};
inline FloatRect intersection(const FloatRect& a, const FloatRect& b)
{
FloatRect c = a;
c.intersect(b);
return c;
}
inline FloatRect unionRect(const FloatRect& a, const FloatRect& b)
{
FloatRect c = a;
c.unite(b);
return c;
}
inline bool operator==(const FloatRect& a, const FloatRect& b)
{
return a.location() == b.location() && a.size() == b.size();
}
inline bool operator!=(const FloatRect& a, const FloatRect& b)
{
return a.location() != b.location() || a.size() != b.size();
}
IntRect enclosingIntRect(const FloatRect&);
// Map rect r from srcRect to an equivalent rect in destRect.
FloatRect mapRect(const FloatRect& r, const FloatRect& srcRect, const FloatRect& destRect);
}
#endif
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