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- /* -*- 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 ***** */
-
- #ifndef NSMARGIN_H
- #define NSMARGIN_H
-
- #include "nsCoord.h"
- #include "gfxCore.h"
-
- struct nsMargin {
- nscoord top, right, bottom, left;
-
- // 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;}
-
- nscoord LeftRight() const { return left + right; }
- nscoord TopBottom() const { return top + bottom; }
-
- #if (NS_SIDE_TOP == 0) && (NS_SIDE_RIGHT == 1) && (NS_SIDE_BOTTOM == 2) && (NS_SIDE_LEFT == 3)
- nscoord& side(PRUint8 aSide) {
- NS_PRECONDITION(aSide <= NS_SIDE_LEFT, "Out of range side");
- return *(&top + aSide);
- }
-
- nscoord side(PRUint8 aSide) const {
- NS_PRECONDITION(aSide <= NS_SIDE_LEFT, "Out of range side");
- return *(&top + aSide);
- }
- #else
- #error "Somebody changed the side constants."
- #endif
-
- // 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;}
- };
-
- #ifdef NS_COORD_IS_FLOAT
- struct nsIntMargin {
- PRInt32 top, right, bottom, left;
-
- // Constructors
- nsIntMargin() {}
- nsIntMargin(const nsIntMargin& aMargin) {*this = aMargin;}
- nsIntMargin(PRInt32 aLeft, PRInt32 aTop,
- PRInt32 aRight, PRInt32 aBottom) {left = aLeft; top = aTop;
- right = aRight; bottom = aBottom;}
- };
- #else
- typedef nsMargin nsIntMargin;
- #endif
-
- #endif /* NSMARGIN_H */
-