001 /* 002 * 003 004 Licensed under the Apache License, Version 2.0 (the "License"); 005 you may not use this file except in compliance with the License. 006 You may obtain a copy of the License at 007 008 http://www.apache.org/licenses/LICENSE-2.0 009 010 Unless required by applicable law or agreed to in writing, software 011 distributed under the License is distributed on an "AS IS" BASIS, 012 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 See the License for the specific language governing permissions and 014 limitations under the License. 015 */ 016 017 package railo.runtime.img.filter;import java.awt.Color; 018 import java.awt.image.BufferedImage; 019 020 import railo.runtime.engine.ThreadLocalPageContext; 021 import railo.runtime.exp.FunctionException; 022 import railo.runtime.exp.PageException; 023 import railo.runtime.img.ImageUtil; 024 import railo.runtime.type.KeyImpl; 025 import railo.runtime.type.Struct; 026 import railo.runtime.type.util.CollectionUtil; 027 028 public class HSBAdjustFilter extends PointFilter implements DynFiltering { 029 030 public float hFactor, sFactor, bFactor; 031 private float[] hsb = new float[3]; 032 033 public HSBAdjustFilter() { 034 this(0, 0, 0); 035 } 036 037 public HSBAdjustFilter(float r, float g, float b) { 038 hFactor = r; 039 sFactor = g; 040 bFactor = b; 041 canFilterIndexColorModel = true; 042 } 043 044 public void setHFactor( float hFactor ) { 045 this.hFactor = hFactor; 046 } 047 048 public float getHFactor() { 049 return hFactor; 050 } 051 052 public void setSFactor( float sFactor ) { 053 this.sFactor = sFactor; 054 } 055 056 public float getSFactor() { 057 return sFactor; 058 } 059 060 public void setBFactor( float bFactor ) { 061 this.bFactor = bFactor; 062 } 063 064 public float getBFactor() { 065 return bFactor; 066 } 067 068 public int filterRGB(int x, int y, int rgb) { 069 int a = rgb & 0xff000000; 070 int r = (rgb >> 16) & 0xff; 071 int g = (rgb >> 8) & 0xff; 072 int b = rgb & 0xff; 073 Color.RGBtoHSB(r, g, b, hsb); 074 hsb[0] += hFactor; 075 while (hsb[0] < 0) 076 hsb[0] += Math.PI*2; 077 hsb[1] += sFactor; 078 if (hsb[1] < 0) 079 hsb[1] = 0; 080 else if (hsb[1] > 1.0) 081 hsb[1] = 1.0f; 082 hsb[2] += bFactor; 083 if (hsb[2] < 0) 084 hsb[2] = 0; 085 else if (hsb[2] > 1.0) 086 hsb[2] = 1.0f; 087 rgb = Color.HSBtoRGB(hsb[0], hsb[1], hsb[2]); 088 return a | (rgb & 0xffffff); 089 } 090 091 public String toString() { 092 return "Colors/Adjust HSB..."; 093 } 094 public BufferedImage filter(BufferedImage src, Struct parameters) throws PageException {BufferedImage dst=ImageUtil.createBufferedImage(src); 095 Object o; 096 if((o=parameters.removeEL(KeyImpl.init("HFactor")))!=null)setHFactor(ImageFilterUtil.toFloatValue(o,"HFactor")); 097 if((o=parameters.removeEL(KeyImpl.init("SFactor")))!=null)setSFactor(ImageFilterUtil.toFloatValue(o,"SFactor")); 098 if((o=parameters.removeEL(KeyImpl.init("BFactor")))!=null)setBFactor(ImageFilterUtil.toFloatValue(o,"BFactor")); 099 if((o=parameters.removeEL(KeyImpl.init("Dimensions")))!=null){ 100 int[] dim=ImageFilterUtil.toDimensions(o,"Dimensions"); 101 setDimensions(dim[0],dim[1]); 102 } 103 104 // check for arguments not supported 105 if(parameters.size()>0) { 106 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]"); 107 } 108 109 return filter(src, dst); 110 } 111 } 112