gecko/gfx/thebes/gfxPoint.h

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 *   Stuart Parmenter <pavlov@pavlov.net>
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#ifndef GFX_POINT_H
#define GFX_POINT_H

#include "nsMathUtils.h"
#include "mozilla/gfx/BaseSize.h"
#include "mozilla/gfx/BasePoint.h"
#include "nsSize.h"
#include "nsPoint.h"

#include "gfxTypes.h"

typedef nsIntSize gfxIntSize;

struct THEBES_API gfxSize : public mozilla::gfx::BaseSize<gfxFloat, gfxSize> {
    typedef mozilla::gfx::BaseSize<gfxFloat, gfxSize> Super;

    gfxSize() : Super() {}
    gfxSize(gfxFloat aWidth, gfxFloat aHeight) : Super(aWidth, aHeight) {}
    gfxSize(const nsIntSize& aSize) : Super(aSize.width, aSize.height) {}
};

struct THEBES_API gfxPoint : public mozilla::gfx::BasePoint<gfxFloat, gfxPoint> {
    typedef mozilla::gfx::BasePoint<gfxFloat, gfxPoint> Super;

    gfxPoint() : Super() {}
    gfxPoint(gfxFloat aX, gfxFloat aY) : Super(aX, aY) {}
    gfxPoint(const nsIntPoint& aPoint) : Super(aPoint.x, aPoint.y) {}

    // Round() is *not* rounding to nearest integer if the values are negative.
    // They are always rounding as floor(n + 0.5).
    // See https://bugzilla.mozilla.org/show_bug.cgi?id=410748#c14
    // And if you need similar method which is using NS_round(), you should
    // create new |RoundAwayFromZero()| method.
    gfxPoint& Round() {
        x = floor(x + 0.5);
        y = floor(y + 0.5);
        return *this;
    }
};

#endif /* GFX_POINT_H */