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