mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 07:05:24 +00:00
189472e8c9
--HG-- rename : gfx/src/BaseMargin.h => gfx/2d/BaseMargin.h rename : gfx/src/BasePoint.h => gfx/2d/BasePoint.h rename : gfx/src/BaseRect.h => gfx/2d/BaseRect.h rename : gfx/src/BaseSize.h => gfx/2d/BaseSize.h
104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
/* -*- 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 Corporation code.
|
|
*
|
|
* The Initial Developer of the Original Code is Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Robert O'Callahan <robert@ocallahan.org>
|
|
*
|
|
* 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 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 MOZILLA_GFX_BASESIZE_H_
|
|
#define MOZILLA_GFX_BASESIZE_H_
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
/**
|
|
* Do not use this class directly. Subclass it, pass that subclass as the
|
|
* Sub parameter, and only use that subclass. This allows methods to safely
|
|
* cast 'this' to 'Sub*'.
|
|
*/
|
|
template <class T, class Sub>
|
|
struct BaseSize {
|
|
T width, height;
|
|
|
|
// Constructors
|
|
BaseSize() : width(0), height(0) {}
|
|
BaseSize(T aWidth, T aHeight) : width(aWidth), height(aHeight) {}
|
|
|
|
void SizeTo(T aWidth, T aHeight) { width = aWidth; height = aHeight; }
|
|
|
|
// Note that '=' isn't defined so we'll get the
|
|
// compiler generated default assignment operator
|
|
|
|
bool operator==(const Sub& aSize) const {
|
|
return width == aSize.width && height == aSize.height;
|
|
}
|
|
bool operator!=(const Sub& aSize) const {
|
|
return width != aSize.width || height != aSize.height;
|
|
}
|
|
bool operator<=(const Sub& aSize) const {
|
|
return width <= aSize.width && height <= aSize.height;
|
|
}
|
|
bool operator<(const Sub& aSize) const {
|
|
return *this <= aSize && *this != aSize;
|
|
}
|
|
|
|
Sub operator+(const Sub& aSize) const {
|
|
return Sub(width + aSize.width, height + aSize.height);
|
|
}
|
|
Sub operator-(const Sub& aSize) const {
|
|
return Sub(width - aSize.width, height - aSize.height);
|
|
}
|
|
Sub& operator+=(const Sub& aSize) {
|
|
width += aSize.width;
|
|
height += aSize.height;
|
|
return *static_cast<Sub*>(this);
|
|
}
|
|
Sub& operator-=(const Sub& aSize) {
|
|
width -= aSize.width;
|
|
height -= aSize.height;
|
|
return *static_cast<Sub*>(this);
|
|
}
|
|
|
|
Sub operator*(T aScale) const {
|
|
return Sub(width * aScale, height * aScale);
|
|
}
|
|
Sub operator/(T aScale) const {
|
|
return Sub(width / aScale, height / aScale);
|
|
}
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif /* MOZILLA_GFX_BASESIZE_H_ */
|