RetroZilla/gfx/thebes/public/gfxColor.h

81 lines
3.1 KiB
C
Raw Normal View History

2015-10-21 05:03:22 +02:00
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** 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 Oracle Corporation code.
*
* The Initial Developer of the Original Code is Oracle Corporation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@pavlov.net>
*
* 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 _GFX_COLOR_H
#define _GFX_COLOR_H
#include "nsPrintfCString.h"
#include "gfxTypes.h"
struct gfxRGBA {
gfxFloat r, g, b, a;
gfxRGBA() { }
gfxRGBA(const gfxRGBA& c) : r(c.r), g(c.g), b(c.b), a(c.a) {}
gfxRGBA(gfxFloat _r, gfxFloat _g, gfxFloat _b, gfxFloat _a=1.0) : r(_r), g(_g), b(_b), a(_a) {}
gfxRGBA(PRUint32 c) {
r = ((c >> 0) & 0xff) / 255.0;
g = ((c >> 8) & 0xff) / 255.0;
b = ((c >> 16) & 0xff) / 255.0;
a = ((c >> 24) & 0xff) / 255.0;
}
gfxRGBA(const char* str) {
a = 1.0;
// if aString[0] is a #, parse it as hex
// if aString[0] is a letter, parse it as a color name
// if aString[0] is a number, parse it loosely as hex
}
PRUint32 Packed() const {
return (((PRUint8)(a * 255.0) << 24) |
((PRUint8)(b * 255.0) << 16) |
((PRUint8)(g * 255.0) << 8) |
((PRUint8)(r * 255.0)));
}
// XXX I'd really prefer to just have this return an nsACString
// Does this function even make sense, since we're just ignoring the alpha value?
void Hex(nsACString& result) const {
nsPrintfCString hex(8, "%02x%02x%02x", PRUint8(r*255.0), PRUint8(g*255.0), PRUint8(b*255.0));
result.Assign(hex);
}
};
#endif /* _GFX_COLOR_H */