michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MOZILLA_GFX_POINT_H_
michael@0: #define MOZILLA_GFX_POINT_H_
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "Types.h"
michael@0: #include "BasePoint.h"
michael@0: #include "BasePoint3D.h"
michael@0: #include "BasePoint4D.h"
michael@0: #include "BaseSize.h"
michael@0: 
michael@0: #include <cmath>
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gfx {
michael@0: 
michael@0: // This should only be used by the typedefs below.
michael@0: struct UnknownUnits {};
michael@0: 
michael@0: template<class units>
michael@0: struct IntPointTyped :
michael@0:   public BasePoint< int32_t, IntPointTyped<units> >,
michael@0:   public units {
michael@0:   typedef BasePoint< int32_t, IntPointTyped<units> > Super;
michael@0: 
michael@0:   MOZ_CONSTEXPR IntPointTyped() : Super() {}
michael@0:   MOZ_CONSTEXPR IntPointTyped(int32_t aX, int32_t aY) : Super(aX, aY) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static IntPointTyped<units> FromUnknownPoint(const IntPointTyped<UnknownUnits>& aPoint) {
michael@0:     return IntPointTyped<units>(aPoint.x, aPoint.y);
michael@0:   }
michael@0: 
michael@0:   IntPointTyped<UnknownUnits> ToUnknownPoint() const {
michael@0:     return IntPointTyped<UnknownUnits>(this->x, this->y);
michael@0:   }
michael@0: };
michael@0: typedef IntPointTyped<UnknownUnits> IntPoint;
michael@0: 
michael@0: template<class units>
michael@0: struct PointTyped :
michael@0:   public BasePoint< Float, PointTyped<units> >,
michael@0:   public units {
michael@0:   typedef BasePoint< Float, PointTyped<units> > Super;
michael@0: 
michael@0:   MOZ_CONSTEXPR PointTyped() : Super() {}
michael@0:   MOZ_CONSTEXPR PointTyped(Float aX, Float aY) : Super(aX, aY) {}
michael@0:   MOZ_CONSTEXPR PointTyped(const IntPointTyped<units>& point) : Super(float(point.x), float(point.y)) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static PointTyped<units> FromUnknownPoint(const PointTyped<UnknownUnits>& aPoint) {
michael@0:     return PointTyped<units>(aPoint.x, aPoint.y);
michael@0:   }
michael@0: 
michael@0:   PointTyped<UnknownUnits> ToUnknownPoint() const {
michael@0:     return PointTyped<UnknownUnits>(this->x, this->y);
michael@0:   }
michael@0: };
michael@0: typedef PointTyped<UnknownUnits> Point;
michael@0: 
michael@0: template<class units>
michael@0: IntPointTyped<units> RoundedToInt(const PointTyped<units>& aPoint) {
michael@0:   return IntPointTyped<units>(int32_t(floorf(aPoint.x + 0.5f)),
michael@0:                               int32_t(floorf(aPoint.y + 0.5f)));
michael@0: }
michael@0: 
michael@0: template<class units>
michael@0: struct Point3DTyped :
michael@0:   public BasePoint3D< Float, Point3DTyped<units> > {
michael@0:   typedef BasePoint3D< Float, Point3DTyped<units> > Super;
michael@0: 
michael@0:   Point3DTyped() : Super() {}
michael@0:   Point3DTyped(Float aX, Float aY, Float aZ) : Super(aX, aY, aZ) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static Point3DTyped<units> FromUnknownPoint(const Point3DTyped<UnknownUnits>& aPoint) {
michael@0:     return Point3DTyped<units>(aPoint.x, aPoint.y, aPoint.z);
michael@0:   }
michael@0: 
michael@0:   Point3DTyped<UnknownUnits> ToUnknownPoint() const {
michael@0:     return Point3DTyped<UnknownUnits>(this->x, this->y, this->z);
michael@0:   }
michael@0: };
michael@0: typedef Point3DTyped<UnknownUnits> Point3D;
michael@0: 
michael@0: template<class units>
michael@0: struct Point4DTyped :
michael@0:   public BasePoint4D< Float, Point4DTyped<units> > {
michael@0:   typedef BasePoint4D< Float, Point4DTyped<units> > Super;
michael@0: 
michael@0:   Point4DTyped() : Super() {}
michael@0:   Point4DTyped(Float aX, Float aY, Float aZ, Float aW) : Super(aX, aY, aZ, aW) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static Point4DTyped<units> FromUnknownPoint(const Point4DTyped<UnknownUnits>& aPoint) {
michael@0:     return Point4DTyped<units>(aPoint.x, aPoint.y, aPoint.z, aPoint.w);
michael@0:   }
michael@0: 
michael@0:   Point4DTyped<UnknownUnits> ToUnknownPoint() const {
michael@0:     return Point4DTyped<UnknownUnits>(this->x, this->y, this->z, this->w);
michael@0:   }
michael@0: };
michael@0: typedef Point4DTyped<UnknownUnits> Point4D;
michael@0: 
michael@0: template<class units>
michael@0: struct IntSizeTyped :
michael@0:   public BaseSize< int32_t, IntSizeTyped<units> >,
michael@0:   public units {
michael@0:   typedef BaseSize< int32_t, IntSizeTyped<units> > Super;
michael@0: 
michael@0:   MOZ_CONSTEXPR IntSizeTyped() : Super() {}
michael@0:   MOZ_CONSTEXPR IntSizeTyped(int32_t aWidth, int32_t aHeight) : Super(aWidth, aHeight) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static IntSizeTyped<units> FromUnknownSize(const IntSizeTyped<UnknownUnits>& aSize) {
michael@0:     return IntSizeTyped<units>(aSize.width, aSize.height);
michael@0:   }
michael@0: 
michael@0:   IntSizeTyped<UnknownUnits> ToUnknownSize() const {
michael@0:     return IntSizeTyped<UnknownUnits>(this->width, this->height);
michael@0:   }
michael@0: };
michael@0: typedef IntSizeTyped<UnknownUnits> IntSize;
michael@0: 
michael@0: template<class units>
michael@0: struct SizeTyped :
michael@0:   public BaseSize< Float, SizeTyped<units> >,
michael@0:   public units {
michael@0:   typedef BaseSize< Float, SizeTyped<units> > Super;
michael@0: 
michael@0:   MOZ_CONSTEXPR SizeTyped() : Super() {}
michael@0:   MOZ_CONSTEXPR SizeTyped(Float aWidth, Float aHeight) : Super(aWidth, aHeight) {}
michael@0:   explicit SizeTyped(const IntSizeTyped<units>& size) :
michael@0:     Super(float(size.width), float(size.height)) {}
michael@0: 
michael@0:   // XXX When all of the code is ported, the following functions to convert to and from
michael@0:   // unknown types should be removed.
michael@0: 
michael@0:   static SizeTyped<units> FromUnknownSize(const SizeTyped<UnknownUnits>& aSize) {
michael@0:     return SizeTyped<units>(aSize.width, aSize.height);
michael@0:   }
michael@0: 
michael@0:   SizeTyped<UnknownUnits> ToUnknownSize() const {
michael@0:     return SizeTyped<UnknownUnits>(this->width, this->height);
michael@0:   }
michael@0: };
michael@0: typedef SizeTyped<UnknownUnits> Size;
michael@0: 
michael@0: template<class units>
michael@0: IntSizeTyped<units> RoundedToInt(const SizeTyped<units>& aSize) {
michael@0:   return IntSizeTyped<units>(int32_t(floorf(aSize.width + 0.5f)),
michael@0:                              int32_t(floorf(aSize.height + 0.5f)));
michael@0: }
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif /* MOZILLA_GFX_POINT_H_ */