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.Color; 036import java.awt.image.BufferedImage; 037 038import lucee.runtime.engine.ThreadLocalPageContext; 039import lucee.runtime.exp.FunctionException; 040import lucee.runtime.exp.PageException; 041import lucee.runtime.img.ImageUtil; 042import lucee.runtime.type.KeyImpl; 043import lucee.runtime.type.Struct; 044import lucee.runtime.type.util.CollectionUtil; 045 046public class HSBAdjustFilter extends PointFilter implements DynFiltering { 047 048 public float hFactor, sFactor, bFactor; 049 private float[] hsb = new float[3]; 050 051 public HSBAdjustFilter() { 052 this(0, 0, 0); 053 } 054 055 public HSBAdjustFilter(float r, float g, float b) { 056 hFactor = r; 057 sFactor = g; 058 bFactor = b; 059 canFilterIndexColorModel = true; 060 } 061 062 public void setHFactor( float hFactor ) { 063 this.hFactor = hFactor; 064 } 065 066 public float getHFactor() { 067 return hFactor; 068 } 069 070 public void setSFactor( float sFactor ) { 071 this.sFactor = sFactor; 072 } 073 074 public float getSFactor() { 075 return sFactor; 076 } 077 078 public void setBFactor( float bFactor ) { 079 this.bFactor = bFactor; 080 } 081 082 public float getBFactor() { 083 return bFactor; 084 } 085 086 public int filterRGB(int x, int y, int rgb) { 087 int a = rgb & 0xff000000; 088 int r = (rgb >> 16) & 0xff; 089 int g = (rgb >> 8) & 0xff; 090 int b = rgb & 0xff; 091 Color.RGBtoHSB(r, g, b, hsb); 092 hsb[0] += hFactor; 093 while (hsb[0] < 0) 094 hsb[0] += Math.PI*2; 095 hsb[1] += sFactor; 096 if (hsb[1] < 0) 097 hsb[1] = 0; 098 else if (hsb[1] > 1.0) 099 hsb[1] = 1.0f; 100 hsb[2] += bFactor; 101 if (hsb[2] < 0) 102 hsb[2] = 0; 103 else if (hsb[2] > 1.0) 104 hsb[2] = 1.0f; 105 rgb = Color.HSBtoRGB(hsb[0], hsb[1], hsb[2]); 106 return a | (rgb & 0xffffff); 107 } 108 109 public String toString() { 110 return "Colors/Adjust HSB..."; 111 } 112 public BufferedImage filter(BufferedImage src, Struct parameters) throws PageException {BufferedImage dst=ImageUtil.createBufferedImage(src); 113 Object o; 114 if((o=parameters.removeEL(KeyImpl.init("HFactor")))!=null)setHFactor(ImageFilterUtil.toFloatValue(o,"HFactor")); 115 if((o=parameters.removeEL(KeyImpl.init("SFactor")))!=null)setSFactor(ImageFilterUtil.toFloatValue(o,"SFactor")); 116 if((o=parameters.removeEL(KeyImpl.init("BFactor")))!=null)setBFactor(ImageFilterUtil.toFloatValue(o,"BFactor")); 117 if((o=parameters.removeEL(KeyImpl.init("Dimensions")))!=null){ 118 int[] dim=ImageFilterUtil.toDimensions(o,"Dimensions"); 119 setDimensions(dim[0],dim[1]); 120 } 121 122 // check for arguments not supported 123 if(parameters.size()>0) { 124 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 [HFactor, SFactor, BFactor, Dimensions]"); 125 } 126 127 return filter(src, dst); 128 } 129} 130