gecko-dev/gfx/public/nsCoord.h

43 lines
1.4 KiB
C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef NSCOORD_H
#define NSCOORD_H
#include "nscore.h"
/*
* Basic type used for the geometry classes. By making it a typedef we can
* easily change it in the future.
*
* All coordinates are maintained as signed 32-bit integers in the twips
* coordinate space. A twip is 1/20th of a point, and there are 72 points per
* inch.
*
* Twips are used because they are a device-independent unit of measure. See
* header file nsUnitConversion.h for many useful macros to convert between
* different units of measure.
*/
typedef PRInt32 nscoord;
#endif /* NSCOORD_H */