gfx/src/nsTransform2D.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsTransform2D.h"
   8
   9 void nsTransform2D ::TransformCoord(nscoord* ptX, nscoord* ptY) const {
  10   *ptX = NSToCoordRound(*ptX * m00 + m20);
  11   *ptY = NSToCoordRound(*ptY * m11 + m21);
  12 }
  13
  14 void nsTransform2D ::TransformCoord(nscoord* aX, nscoord* aY, nscoord* aWidth,
  15                                     nscoord* aHeight) const {
  16   nscoord x2 = *aX + *aWidth;
  17   nscoord y2 = *aY + *aHeight;
  18   TransformCoord(aX, aY);
  19   TransformCoord(&x2, &y2);
  20   *aWidth = x2 - *aX;
  21   *aHeight = y2 - *aY;
  22 }