001 /*--------------------------------------------------------------------------+ 002 $Id: IDrawingPattern.java 26931 2010-03-17 14:53:13Z besenreu $ 003 | | 004 | Copyright 2005-2010 Technische Universitaet Muenchen | 005 | | 006 | Licensed under the Apache License, Version 2.0 (the "License"); | 007 | you may not use this file except in compliance with the License. | 008 | You may obtain a copy of the License at | 009 | | 010 | http://www.apache.org/licenses/LICENSE-2.0 | 011 | | 012 | Unless required by applicable law or agreed to in writing, software | 013 | distributed under the License is distributed on an "AS IS" BASIS, | 014 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 015 | See the License for the specific language governing permissions and | 016 | limitations under the License. | 017 +--------------------------------------------------------------------------*/ 018 package edu.tum.cs.commons.treemap; 019 020 /** 021 * A drawing pattern is a predicate that determines whether a given pixel 022 * belongs to the foreground or background. This way image generating processors 023 * can produce e.g. striped areas. 024 * 025 * @author Benjamin Hummel 026 * @author $Author: besenreu $ 027 * @version $Rev: 26931 $ 028 * @levd.rating GREEN Hash: 492D98E7AC89E5A2194F2280F30485D3 029 */ 030 public interface IDrawingPattern { 031 032 /** 033 * For the given x and y coordinates returns whether the pixel belongs to 034 * the foreground (otherwise it is background as we do not support 035 * transparency). The coordinates are in pixels using the standard 036 * coordinate system for 2D graphics where (0,0) is the top left corner. 037 */ 038 boolean isForeground(int x, int y); 039 }