gecko/gfx/2d/Rect.h

85 lines
2.7 KiB
C++

/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_GFX_RECT_H_
#define MOZILLA_GFX_RECT_H_
#include "BaseRect.h"
#include "BaseMargin.h"
#include "Point.h"
#include "Tools.h"
namespace mozilla {
namespace gfx {
struct Margin :
public BaseMargin<Float, Margin> {
typedef BaseMargin<Float, Margin> Super;
// Constructors
Margin() : Super(0, 0, 0, 0) {}
Margin(const Margin& aMargin) : Super(aMargin) {}
Margin(Float aTop, Float aRight, Float aBottom, Float aLeft)
: Super(aTop, aRight, aBottom, aLeft) {}
};
template<class units>
struct IntRectTyped :
public BaseRect<int32_t, IntRectTyped<units>, IntPointTyped<units>, IntSizeTyped<units>, Margin>,
public units {
typedef BaseRect<int32_t, IntRectTyped<units>, IntPointTyped<units>, IntSizeTyped<units>, Margin> Super;
IntRectTyped() : Super() {}
IntRectTyped(IntPointTyped<units> aPos, IntSizeTyped<units> aSize) :
Super(aPos, aSize) {}
IntRectTyped(int32_t _x, int32_t _y, int32_t _width, int32_t _height) :
Super(_x, _y, _width, _height) {}
// Rounding isn't meaningful on an integer rectangle.
void Round() {}
void RoundIn() {}
void RoundOut() {}
};
typedef IntRectTyped<UnknownUnits> IntRect;
template<class units>
struct RectTyped :
public BaseRect<Float, RectTyped<units>, PointTyped<units>, SizeTyped<units>, Margin>,
public units {
typedef BaseRect<Float, RectTyped<units>, PointTyped<units>, SizeTyped<units>, Margin> Super;
RectTyped() : Super() {}
RectTyped(PointTyped<units> aPos, SizeTyped<units> aSize) :
Super(aPos, aSize) {}
RectTyped(Float _x, Float _y, Float _width, Float _height) :
Super(_x, _y, _width, _height) {}
explicit RectTyped(const IntRectTyped<units>& rect) :
Super(float(rect.x), float(rect.y),
float(rect.width), float(rect.height)) {}
GFX2D_API void NudgeToIntegers()
{
NudgeToInteger(&(this->x));
NudgeToInteger(&(this->y));
NudgeToInteger(&(this->width));
NudgeToInteger(&(this->height));
}
bool ToIntRect(IntRectTyped<units> *aOut) const
{
*aOut = IntRectTyped<units>(int32_t(this->X()), int32_t(this->Y()),
int32_t(this->Width()), int32_t(this->Height()));
return RectTyped<units>(Float(aOut->x), Float(aOut->y),
Float(aOut->width), Float(aOut->height))
.IsEqualEdges(*this);
}
};
typedef RectTyped<UnknownUnits> Rect;
}
}
#endif /* MOZILLA_GFX_RECT_H_ */