gfx/src/nsTransform2D.cpp
author Boris Zbarsky <bzbarsky@mit.edu>
Thu, 15 Jul 2010 13:49:28 -0400
changeset 47703 5d3c3d5c71bc03965fd60fb8cf6d94548883972f
parent 12243 438f42c6c355477dd1196179f948f7c069f71a62
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Backing out rev b567a93a5086 (bug 558306) to fix test orange

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */


#include "nsTransform2D.h"

void nsTransform2D :: TransformCoord(nscoord *ptX, nscoord *ptY) const
{
  *ptX = NSToCoordRound(*ptX * m00 + m20);
  *ptY = NSToCoordRound(*ptY * m11 + m21);
}

void nsTransform2D :: TransformCoord(nscoord *aX, nscoord *aY, nscoord *aWidth, nscoord *aHeight) const
{
  nscoord x2 = *aX + *aWidth;
  nscoord y2 = *aY + *aHeight;
  TransformCoord(aX, aY);
  TransformCoord(&x2, &y2);
  *aWidth = x2 - *aX;
  *aHeight = y2 - *aY;
}