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59 lines
1.9 KiB
C#
59 lines
1.9 KiB
C#
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/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2013 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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using System.Drawing;
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namespace Greenshot.Helpers
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{
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public static class Colors
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{
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public static bool IsVisible(Color c)
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{
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return c != null && !c.Equals(Color.Empty) && !c.Equals(Color.Transparent) && c.A > 0;
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}
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public static Color Mix(List<Color> colors)
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{
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int a = 0;
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int r = 0;
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int g = 0;
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int b = 0;
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int count = 0;
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foreach (Color color in colors)
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{
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if (!color.Equals(Color.Empty))
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{
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a += color.A;
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r += color.R;
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g += color.G;
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b += color.B;
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count++;
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}
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}
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if (count == 0)
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{
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return Color.Empty;
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}
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return Color.FromArgb(a / count, r / count, g / count, b / count);
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}
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}
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}
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