/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- * 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 GFX_POINT_H #define GFX_POINT_H #include "nsMathUtils.h" #include "mozilla/gfx/BaseSize.h" #include "mozilla/gfx/BasePoint.h" #include "mozilla/gfx/Matrix.h" #include "nsSize.h" #include "nsPoint.h" #include "gfxTypes.h" struct gfxSize : public mozilla::gfx::BaseSize<gfxFloat, gfxSize> { typedef mozilla::gfx::BaseSize<gfxFloat, gfxSize> Super; gfxSize() : Super() {} gfxSize(gfxFloat aWidth, gfxFloat aHeight) : Super(aWidth, aHeight) {} MOZ_IMPLICIT gfxSize(const mozilla::gfx::IntSize& aSize) : Super(aSize.width, aSize.height) {} }; struct gfxPoint : public mozilla::gfx::BasePoint<gfxFloat, gfxPoint> { typedef mozilla::gfx::BasePoint<gfxFloat, gfxPoint> Super; gfxPoint() : Super() {} gfxPoint(gfxFloat aX, gfxFloat aY) : Super(aX, aY) {} MOZ_IMPLICIT gfxPoint(const nsIntPoint& aPoint) : Super(aPoint.x, aPoint.y) {} bool WithinEpsilonOf(const gfxPoint& aPoint, gfxFloat aEpsilon) { return fabs(aPoint.x - x) < aEpsilon && fabs(aPoint.y - y) < aEpsilon; } void Transform(const mozilla::gfx::Matrix4x4 &aMatrix) { // Transform this point with aMatrix double px = x; double py = y; x = px * aMatrix._11 + py * aMatrix._21 + aMatrix._41; y = px * aMatrix._12 + py * aMatrix._22 + aMatrix._42; double w = px * aMatrix._14 + py * aMatrix._24 + aMatrix._44; x /= w; y /= w; } }; inline gfxPoint operator*(const gfxPoint& aPoint, const gfxSize& aSize) { return gfxPoint(aPoint.x * aSize.width, aPoint.y * aSize.height); } inline gfxPoint operator/(const gfxPoint& aPoint, const gfxSize& aSize) { return gfxPoint(aPoint.x / aSize.width, aPoint.y / aSize.height); } inline gfxSize operator/(gfxFloat aValue, const gfxSize& aSize) { return gfxSize(aValue / aSize.width, aValue / aSize.height); } #endif /* GFX_POINT_H */