gitg/libgitg/gitg-color.vala
2012-07-02 20:02:34 +02:00

119 lines
2 KiB
Vala

/*
* This file is part of gitg
*
* Copyright (C) 2012 - Jesse van den Kieboom
*
* gitg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* gitg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gitg. If not, see <http://www.gnu.org/licenses/>.
*/
namespace Gitg
{
public class Color : Object
{
private struct Rgb
{
ushort r;
ushort g;
ushort b;
}
private static const Rgb[] palette = {
{196, 160, 0},
{78, 154, 6},
{206, 92, 0},
{32, 74, 135},
{46, 52, 54},
{108, 53, 102},
{164, 0, 0},
{138, 226, 52},
{252, 175, 62},
{114, 159, 207},
{252, 233, 79},
{136, 138, 133},
{173, 127, 168},
{233, 185, 110},
{239, 41, 41}
};
private static uint current_index;
public uint idx = 0;
public static void reset()
{
current_index = 0;
}
public double r
{
get { return palette[idx].r / 255.0; }
}
public double g
{
get { return palette[idx].g / 255.0; }
}
public double b
{
get { return palette[idx].b / 255.0; }
}
public void components(out double r, out double g, out double b)
{
r = this.r;
g = this.g;
b = this.b;
}
private static uint inc_index()
{
uint next = current_index++;
if (current_index == palette.length)
{
current_index = 0;
}
return next;
}
public static Color next()
{
Color ret = new Color();
ret.idx = inc_index();
return ret;
}
public Color next_index()
{
this.idx = inc_index();
return this;
}
public Color copy()
{
Color ret = new Color();
ret.idx = idx;
return ret;
}
}
}
// ex:set ts=4 noet