rgba.h

00001 /***************************************************************************
00002 *   Copyright (C) 2006 by Rick L. Vinyard, Jr.                            *
00003 *   rvinyard@cs.nmsu.edu                                                  *
00004 *                                                                         *
00005 *   This program is free software; you can redistribute it and/or modify  *
00006 *   it under the terms of the GNU Lesser General Public License as        *
00007 *   published by the Free Software Foundation version 2.1.                *
00008 *                                                                         *
00009 *   This program is distributed in the hope that it will be useful,       *
00010 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00011 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
00012 *   GNU General Public License for more details.                          *
00013 *                                                                         *
00014 *   You should have received a copy of the GNU Lesser General Public      *
00015 *   License along with this library; if not, write to the                 *
00016 *   Free Software Foundation, Inc.,                                       *
00017 *   51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA              *
00018 ***************************************************************************/
00019 #ifndef PAPYRUSRGBA_H
00020 #define PAPYRUSRGBA_H
00021 
00022 #include <string>
00023 
00024 #include <cairomm/pattern.h>
00025 
00026 namespace Papyrus {
00027 
00028 typedef enum COLOR_INDEXES {
00029   RED=0x00,
00030   GREEN=0x01,
00031   BLUE=0x02,
00032   HUE=0x00,
00033   SATURATION=0x01,
00034   BRIGHTNESS=0x02,
00035   LIGHTNESS=0x02,
00036   ALPHA=0x03
00037 } COLOR_INDEXES;
00038 
00042 struct RGBA {
00043 
00044   RGBA(double r=0.0, double g=0.0, double b=0.0, double a=1.0);
00045 
00046   RGBA(const std::string& name, double a=1.0);
00047 
00048   double red, green, blue, alpha;
00049 
00050   double operator[](unsigned index);
00051 
00052   operator Cairo::RefPtr<Cairo::Pattern>();
00053 
00054 };
00055 
00056 }
00057 #endif

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