Here you can find the source of mixWith(Paint paint, Color mix)
private static Paint mixWith(Paint paint, Color mix)
//package com.java2s; /******************************************************************************* * Copyright (c) 2016 German Federal Institute for Risk Assessment (BfR) * * This program 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 3 of the License, or * (at your option) any later version.//from w ww .j a v a2 s .c om * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. * * Contributors: * Department Biological Safety - BfR *******************************************************************************/ import java.awt.Color; import java.awt.Paint; import java.awt.Rectangle; import java.awt.TexturePaint; import java.awt.image.BufferedImage; public class Main { private static Paint mixWith(Paint paint, Color mix) { if (paint instanceof Color) { Color c = (Color) paint; return new Color((c.getRed() + mix.getRed()) / 2, (c.getGreen() + mix.getGreen()) / 2, (c.getBlue() + mix.getBlue()) / 2, (c.getAlpha() + mix.getAlpha()) / 2); } else if (paint instanceof TexturePaint) { BufferedImage texture = ((TexturePaint) paint).getImage(); BufferedImage mixed = new BufferedImage(texture.getWidth(), texture.getHeight(), texture.getType()); for (int x = 0; x < texture.getWidth(); x++) { for (int y = 0; y < texture.getHeight(); y++) { mixed.setRGB( x, y, ((Color) mixWith( new Color(texture.getRGB(x, y)), mix)) .getRGB()); } } return new TexturePaint(mixed, new Rectangle(mixed.getWidth(), mixed.getHeight())); } else { return paint; } } }