001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019/* 020* 021 022Licensed under the Apache License, Version 2.0 (the "License"); 023you may not use this file except in compliance with the License. 024You may obtain a copy of the License at 025 026 http://www.apache.org/licenses/LICENSE-2.0 027 028Unless required by applicable law or agreed to in writing, software 029distributed under the License is distributed on an "AS IS" BASIS, 030WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 031See the License for the specific language governing permissions and 032limitations under the License. 033*/ 034 035package lucee.runtime.img.filter;import java.awt.image.BufferedImage; 036 037import lucee.runtime.engine.ThreadLocalPageContext; 038import lucee.runtime.exp.FunctionException; 039import lucee.runtime.exp.PageException; 040import lucee.runtime.img.ImageUtil; 041import lucee.runtime.type.KeyImpl; 042import lucee.runtime.type.Struct; 043import lucee.runtime.type.util.CollectionUtil; 044 045 046 047/** 048 * A filter which fills an image with a given color. Normally you would just call Graphics.fillRect but it can sometimes be useful 049 * to go via a filter to fit in with an existing API. 050 */ 051public class FillFilter extends PointFilter implements DynFiltering { 052 053 private int fillColor; 054 055 /** 056 * Construct a FillFilter. 057 */ 058 public FillFilter() { 059 this(0xff000000); 060 } 061 062 /** 063 * Construct a FillFilter. 064 * @param color the fill color 065 */ 066 public FillFilter(int color) { 067 this.fillColor = color; 068 } 069 070 /** 071 * Set the fill color. 072 * @param fillColor the fill color 073 * @see #getFillColor 074 */ 075 public void setFillColor(int fillColor) { 076 this.fillColor = fillColor; 077 } 078 079 /** 080 * Get the fill color. 081 * @return the fill color 082 * @see #setFillColor 083 */ 084 public int getFillColor() { 085 return fillColor; 086 } 087 088 public int filterRGB(int x, int y, int rgb) { 089 return fillColor; 090 } 091 public BufferedImage filter(BufferedImage src, Struct parameters) throws PageException {BufferedImage dst=ImageUtil.createBufferedImage(src); 092 Object o; 093 if((o=parameters.removeEL(KeyImpl.init("FillColor")))!=null)setFillColor(ImageFilterUtil.toColorRGB(o,"FillColor")); 094 if((o=parameters.removeEL(KeyImpl.init("Dimensions")))!=null){ 095 int[] dim=ImageFilterUtil.toDimensions(o,"Dimensions"); 096 setDimensions(dim[0],dim[1]); 097 } 098 099 // check for arguments not supported 100 if(parameters.size()>0) { 101 throw new FunctionException(ThreadLocalPageContext.get(), "ImageFilter", 3, "parameters", "the parameter"+(parameters.size()>1?"s":"")+" ["+CollectionUtil.getKeyList(parameters,", ")+"] "+(parameters.size()>1?"are":"is")+" not allowed, only the following parameters are supported [FillColor, Dimensions]"); 102 } 103 104 return filter(src, dst); 105 } 106} 107