FractionalLayoutRect.h [plain text]
#ifndef FractionalLayoutRect_h
#define FractionalLayoutRect_h
#include "FractionalLayoutPoint.h"
#include "IntRect.h"
#include <wtf/Vector.h>
namespace WebCore {
class FloatRect;
class FractionalLayoutRect {
public:
FractionalLayoutRect() { }
FractionalLayoutRect(const FractionalLayoutPoint& location, const FractionalLayoutSize& size)
: m_location(location), m_size(size) { }
FractionalLayoutRect(FractionalLayoutUnit x, FractionalLayoutUnit y, FractionalLayoutUnit width, FractionalLayoutUnit height)
: m_location(FractionalLayoutPoint(x, y)), m_size(FractionalLayoutSize(width, height)) { }
FractionalLayoutRect(const FloatPoint& location, const FloatSize& size)
: m_location(location), m_size(size) { }
FractionalLayoutRect(const IntRect& rect) : m_location(rect.location()), m_size(rect.size()) { }
explicit FractionalLayoutRect(const FloatRect&);
FractionalLayoutPoint location() const { return m_location; }
FractionalLayoutSize size() const { return m_size; }
IntPoint pixelSnappedLocation() const { return roundedIntPoint(m_location); }
IntSize pixelSnappedSize() const { return pixelSnappedIntSize(m_size, m_location); }
void setLocation(const FractionalLayoutPoint& location) { m_location = location; }
void setSize(const FractionalLayoutSize& size) { m_size = size; }
FractionalLayoutUnit x() const { return m_location.x(); }
FractionalLayoutUnit y() const { return m_location.y(); }
FractionalLayoutUnit maxX() const { return x() + width(); }
FractionalLayoutUnit maxY() const { return y() + height(); }
FractionalLayoutUnit width() const { return m_size.width(); }
FractionalLayoutUnit height() const { return m_size.height(); }
int pixelSnappedX() const { return x().round(); }
int pixelSnappedY() const { return y().round(); }
int pixelSnappedWidth() const { return snapSizeToPixel(width(), x()); }
int pixelSnappedHeight() const { return snapSizeToPixel(height(), y()); }
int pixelSnappedMaxX() const { return pixelSnappedX() + pixelSnappedWidth(); }
int pixelSnappedMaxY() const { return pixelSnappedY() + pixelSnappedHeight(); }
void setX(FractionalLayoutUnit x) { m_location.setX(x); }
void setY(FractionalLayoutUnit y) { m_location.setY(y); }
void setWidth(FractionalLayoutUnit width) { m_size.setWidth(width); }
void setHeight(FractionalLayoutUnit height) { m_size.setHeight(height); }
bool isEmpty() const { return m_size.isEmpty(); }
FractionalLayoutPoint center() const { return FractionalLayoutPoint(x() + width() / 2, y() + height() / 2); }
void move(const FractionalLayoutSize& size) { m_location += size; }
void moveBy(const FractionalLayoutPoint& offset) { m_location.move(offset.x(), offset.y()); }
void move(FractionalLayoutUnit dx, FractionalLayoutUnit dy) { m_location.move(dx, dy); }
void expand(const FractionalLayoutSize& size) { m_size += size; }
void expand(FractionalLayoutUnit dw, FractionalLayoutUnit dh) { m_size.expand(dw, dh); }
void contract(const FractionalLayoutSize& size) { m_size -= size; }
void contract(FractionalLayoutUnit dw, FractionalLayoutUnit dh) { m_size.expand(-dw, -dh); }
void shiftXEdgeTo(FractionalLayoutUnit edge)
{
FractionalLayoutUnit delta = edge - x();
setX(edge);
setWidth(std::max<FractionalLayoutUnit>(0, width() - delta));
}
void shiftMaxXEdgeTo(FractionalLayoutUnit edge)
{
FractionalLayoutUnit delta = edge - maxX();
setWidth(std::max<FractionalLayoutUnit>(0, width() + delta));
}
void shiftYEdgeTo(FractionalLayoutUnit edge)
{
FractionalLayoutUnit delta = edge - y();
setY(edge);
setHeight(std::max<FractionalLayoutUnit>(0, height() - delta));
}
void shiftMaxYEdgeTo(FractionalLayoutUnit edge)
{
FractionalLayoutUnit delta = edge - maxY();
setHeight(std::max<FractionalLayoutUnit>(0, height() + delta));
}
FractionalLayoutPoint minXMinYCorner() const { return m_location; } FractionalLayoutPoint maxXMinYCorner() const { return FractionalLayoutPoint(m_location.x() + m_size.width(), m_location.y()); } FractionalLayoutPoint minXMaxYCorner() const { return FractionalLayoutPoint(m_location.x(), m_location.y() + m_size.height()); } FractionalLayoutPoint maxXMaxYCorner() const { return FractionalLayoutPoint(m_location.x() + m_size.width(), m_location.y() + m_size.height()); }
bool intersects(const FractionalLayoutRect&) const;
bool contains(const FractionalLayoutRect&) const;
bool contains(FractionalLayoutUnit px, FractionalLayoutUnit py) const
{ return px >= x() && px < maxX() && py >= y() && py < maxY(); }
bool contains(const FractionalLayoutPoint& point) const { return contains(point.x(), point.y()); }
void intersect(const FractionalLayoutRect&);
void unite(const FractionalLayoutRect&);
void uniteIfNonZero(const FractionalLayoutRect&);
void inflateX(FractionalLayoutUnit dx)
{
m_location.setX(m_location.x() - dx);
m_size.setWidth(m_size.width() + dx + dx);
}
void inflateY(FractionalLayoutUnit dy)
{
m_location.setY(m_location.y() - dy);
m_size.setHeight(m_size.height() + dy + dy);
}
void inflate(FractionalLayoutUnit d) { inflateX(d); inflateY(d); }
void scale(float s);
FractionalLayoutRect transposedRect() const { return FractionalLayoutRect(m_location.transposedPoint(), m_size.transposedSize()); }
static FractionalLayoutRect infiniteRect() {return FractionalLayoutRect(FractionalLayoutUnit::min() / 2, FractionalLayoutUnit::min() / 2, FractionalLayoutUnit::max(), FractionalLayoutUnit::max()); }
private:
FractionalLayoutPoint m_location;
FractionalLayoutSize m_size;
};
inline FractionalLayoutRect intersection(const FractionalLayoutRect& a, const FractionalLayoutRect& b)
{
FractionalLayoutRect c = a;
c.intersect(b);
return c;
}
inline FractionalLayoutRect unionRect(const FractionalLayoutRect& a, const FractionalLayoutRect& b)
{
FractionalLayoutRect c = a;
c.unite(b);
return c;
}
FractionalLayoutRect unionRect(const Vector<FractionalLayoutRect>&);
inline bool operator==(const FractionalLayoutRect& a, const FractionalLayoutRect& b)
{
return a.location() == b.location() && a.size() == b.size();
}
inline bool operator!=(const FractionalLayoutRect& a, const FractionalLayoutRect& b)
{
return a.location() != b.location() || a.size() != b.size();
}
IntRect enclosingIntRect(const FractionalLayoutRect&);
FractionalLayoutRect enclosingFractionalLayoutRect(const FloatRect&);
IntRect pixelSnappedIntRect(const FractionalLayoutRect&);
}
#endif // FractionalLayoutRect_h