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 **/ 019package lucee.runtime.functions.image; 020 021 022import lucee.runtime.PageContext; 023import lucee.runtime.exp.ExpressionException; 024import lucee.runtime.exp.PageException; 025import lucee.runtime.ext.function.Function; 026import lucee.runtime.img.Image; 027import lucee.runtime.op.Caster; 028 029public class ImageRotate implements Function { 030 031 public static String call(PageContext pc, Object name, String angle) throws PageException { 032 return _call(pc, name,-1F,-1F,Caster.toFloatValue(angle),"nearest"); 033 } 034 035 public static String call(PageContext pc, Object name, String angle, String strInterpolation) throws PageException { 036 return _call(pc, name,-1F,-1F,Caster.toFloatValue(angle),strInterpolation); 037 } 038 039 public static String call(PageContext pc, Object name, String x, String y, String angle) throws PageException { 040 return _call(pc, name,Caster.toFloatValue(x),Caster.toFloatValue(y),Caster.toFloatValue(angle),"nearest"); 041 } 042 043 public static String call(PageContext pc, Object name, String x, String y, String angle, String strInterpolation) throws PageException { 044 return _call(pc, name,Caster.toFloatValue(x),Caster.toFloatValue(y),Caster.toFloatValue(angle),strInterpolation); 045 } 046 047 private static String _call(PageContext pc, Object name, float x, float y, float angle, String strInterpolation) throws PageException { 048 //if(name instanceof String) name=pc.getVariable(Caster.toString(name)); 049 Image img = Image.toImage(pc,name); 050 strInterpolation=strInterpolation.trim().toLowerCase(); 051 int interpolation; 052 if("nearest".equals(strInterpolation)) interpolation=lucee.runtime.img.Image.INTERPOLATION_NEAREST; 053 else if("bilinear".equals(strInterpolation)) interpolation=lucee.runtime.img.Image.INTERPOLATION_BILINEAR; 054 else if("bicubic".equals(strInterpolation)) interpolation=lucee.runtime.img.Image.INTERPOLATION_BICUBIC; 055 else if("none".equals(strInterpolation)) interpolation=lucee.runtime.img.Image.INTERPOLATION_NONE; 056 else throw new ExpressionException("invalid interpolation definition ["+strInterpolation+"]," + 057 " valid values are [nearest,bilinear,bicubic]"); 058 059 img.rotate(x,y,angle,interpolation); 060 return null; 061 062 } 063}