gecko-dev/gfx/public/nsMargin.h

76 lines
3.2 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 NSMARGIN_H
#define NSMARGIN_H
#include "nsCoord.h"
struct nsMargin {
nscoord left, top, right, bottom;
// Constructors
nsMargin() {}
nsMargin(const nsMargin& aMargin) {*this = aMargin;}
nsMargin(nscoord aLeft, nscoord aTop,
nscoord aRight, nscoord aBottom) {left = aLeft; top = aTop;
right = aRight; bottom = aBottom;}
void SizeTo(nscoord aLeft, nscoord aTop,
nscoord aRight, nscoord aBottom) {left = aLeft; top = aTop;
right = aRight; bottom = aBottom;}
void SizeBy(nscoord aLeft, nscoord aTop,
nscoord aRight, nscoord aBottom) {left += aLeft; top += aTop;
right += aRight; bottom += aBottom;}
// Overloaded operators. Note that '=' isn't defined so we'll get the
// compiler generated default assignment operator
PRBool operator==(const nsMargin& aMargin) const {
return (PRBool) ((left == aMargin.left) && (top == aMargin.top) &&
(right == aMargin.right) && (bottom == aMargin.bottom));
}
PRBool operator!=(const nsMargin& aMargin) const {
return (PRBool) ((left != aMargin.left) || (top != aMargin.top) ||
(right != aMargin.right) || (bottom != aMargin.bottom));
}
nsMargin operator+(const nsMargin& aMargin) const {
return nsMargin(left + aMargin.left, top + aMargin.top,
right + aMargin.right, bottom + aMargin.bottom);
}
nsMargin operator-(const nsMargin& aMargin) const {
return nsMargin(left - aMargin.left, top - aMargin.top,
right - aMargin.right, bottom - aMargin.bottom);
}
nsMargin& operator+=(const nsMargin& aMargin) {left += aMargin.left;
top += aMargin.top;
right += aMargin.right;
bottom += aMargin.bottom;
return *this;}
nsMargin& operator-=(const nsMargin& aMargin) {left -= aMargin.left;
top -= aMargin.top;
right -= aMargin.right;
bottom -= aMargin.bottom;
return *this;}
};
#endif /* NSMARGIN_H */