gecko-dev/gfx/public/nsSize.h

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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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#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 */