gecko-dev/gfx/public/nsSize.h

66 lines
2.4 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 NSSIZE_H
#define NSSIZE_H
#include "nsCoord.h"
// Maximum allowable size
#define NS_MAXSIZE nscoord(1 << 30)
struct nsSize {
nscoord width, height;
// Constructors
nsSize() {}
nsSize(const nsSize& aSize) {width = aSize.width; height = aSize.height;}
nsSize(nscoord aWidth, nscoord aHeight) {width = aWidth; height = aHeight;}
void SizeTo(nscoord aWidth, nscoord aHeight) {width = aWidth; height = aHeight;}
void SizeBy(nscoord aDeltaWidth, nscoord aDeltaHeight) {width += aDeltaWidth;
height += aDeltaHeight;}
// Overloaded operators. Note that '=' isn't defined so we'll get the
// compiler generated default assignment operator
PRBool operator==(const nsSize& aSize) const {
return (PRBool) ((width == aSize.width) && (height == aSize.height));
}
PRBool operator!=(const nsSize& aSize) const {
return (PRBool) ((width != aSize.width) || (height != aSize.height));
}
nsSize operator+(const nsSize& aSize) const {
return nsSize(width + aSize.width, height + aSize.height);
}
nsSize operator-(const nsSize& aSize) const {
return nsSize(width - aSize.width, height - aSize.height);
}
nsSize& operator+=(const nsSize& aSize) {width += aSize.width;
height += aSize.height;
return *this;}
nsSize& operator-=(const nsSize& aSize) {width -= aSize.width;
height -= aSize.height;
return *this;}
};
#endif /* NSSIZE_H */