gecko-dev/gfx/public/nsPoint.h
2001-09-26 00:16:04 +00:00

142 lines
4.8 KiB
C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 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 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef NSPOINT_H
#define NSPOINT_H
#include "nsCoord.h"
struct nsPoint {
nscoord x, y;
// Constructors
nsPoint() {}
nsPoint(const nsPoint& aPoint) {x = aPoint.x; y = aPoint.y;}
nsPoint(nscoord aX, nscoord aY) {x = aX; y = aY;}
void MoveTo(nscoord aX, nscoord aY) {x = aX; y = aY;}
void MoveBy(nscoord aDx, nscoord aDy) {x += aDx; y += aDy;}
// Overloaded operators. Note that '=' isn't defined so we'll get the
// compiler generated default assignment operator
PRBool operator==(const nsPoint& aPoint) const {
return (PRBool) ((x == aPoint.x) && (y == aPoint.y));
}
PRBool operator!=(const nsPoint& aPoint) const {
return (PRBool) ((x != aPoint.x) || (y != aPoint.y));
}
nsPoint operator+(const nsPoint& aPoint) const {
return nsPoint(x + aPoint.x, y + aPoint.y);
}
nsPoint operator-(const nsPoint& aPoint) const {
return nsPoint(x - aPoint.x, y - aPoint.y);
}
nsPoint& operator+=(const nsPoint& aPoint) {
x += aPoint.x;
y += aPoint.y;
return *this;
}
nsPoint& operator-=(const nsPoint& aPoint) {
x -= aPoint.x;
y -= aPoint.y;
return *this;
}
};
/** ---------------------------------------------------
* A point structure with floats for the Quadratic bezier curve
* @update 4/27/2000 dwc
*/
struct nsFloatPoint {
float x, y;
// Constructors
nsFloatPoint() {}
nsFloatPoint(const nsFloatPoint& aPoint) {x = aPoint.x; y = aPoint.y;}
nsFloatPoint(float aX, float aY) {x = aX; y = aY;}
void MoveTo(float aX, float aY) {x = aX; y = aY;}
void MoveTo(nscoord aX, nscoord aY) {x = (float)aX; y = (float)aY;}
void MoveBy(float aDx, float aDy) {x += aDx; y += aDy;}
// Overloaded operators. Note that '=' isn't defined so we'll get the
// compiler generated default assignment operator
PRBool operator==(const nsFloatPoint& aPoint) const {
return (PRBool) ((x == aPoint.x) && (y == aPoint.y));
}
PRBool operator!=(const nsFloatPoint& aPoint) const {
return (PRBool) ((x != aPoint.x) || (y != aPoint.y));
}
nsFloatPoint operator+(const nsFloatPoint& aPoint) const {
return nsFloatPoint(x + aPoint.x, y + aPoint.y);
}
nsFloatPoint operator-(const nsFloatPoint& aPoint) const {
return nsFloatPoint(x - aPoint.x, y - aPoint.y);
}
nsFloatPoint& operator+=(const nsFloatPoint& aPoint) {
x += aPoint.x;
y += aPoint.y;
return *this;
}
nsFloatPoint& operator-=(const nsFloatPoint& aPoint) {
x -= aPoint.x;
y -= aPoint.y;
return *this;
}
};
/** ---------------------------------------------------
* A special type of point which also add the capability to tell if a point is on
* the curve.. or off of the curve for a path
* @update 03/29/00 dwc
*/
struct nsPathPoint: public nsFloatPoint{
PRBool mIsOnCurve;
// Constructors
nsPathPoint() {}
nsPathPoint(const nsPathPoint& aPoint) {x = aPoint.x; y = aPoint.y;mIsOnCurve=aPoint.mIsOnCurve;}
nsPathPoint(float aX, float aY) {x = aX; y = aY;mIsOnCurve=PR_TRUE;}
nsPathPoint(float aX, float aY,PRBool aIsOnCurve) {x = aX; y = aY;mIsOnCurve=aIsOnCurve;}
};
#endif /* NSPOINT_H */