001 package railo.runtime.functions.image; 002 003 004 import railo.runtime.PageContext; 005 import railo.runtime.exp.ExpressionException; 006 import railo.runtime.exp.PageException; 007 import railo.runtime.ext.function.Function; 008 import railo.runtime.img.Image; 009 import railo.runtime.op.Caster; 010 011 public class ImageRotate implements Function { 012 013 public static String call(PageContext pc, Object name, String angle) throws PageException { 014 return _call(pc, name,-1F,-1F,Caster.toFloatValue(angle),"nearest"); 015 } 016 017 public static String call(PageContext pc, Object name, String angle, String strInterpolation) throws PageException { 018 return _call(pc, name,-1F,-1F,Caster.toFloatValue(angle),strInterpolation); 019 } 020 021 public static String call(PageContext pc, Object name, String x, String y, String angle) throws PageException { 022 return _call(pc, name,Caster.toFloatValue(x),Caster.toFloatValue(y),Caster.toFloatValue(angle),"nearest"); 023 } 024 025 public static String call(PageContext pc, Object name, String x, String y, String angle, String strInterpolation) throws PageException { 026 return _call(pc, name,Caster.toFloatValue(x),Caster.toFloatValue(y),Caster.toFloatValue(angle),strInterpolation); 027 } 028 029 private static String _call(PageContext pc, Object name, float x, float y, float angle, String strInterpolation) throws PageException { 030 if(name instanceof String) name=pc.getVariable(Caster.toString(name)); 031 Image img = Image.toImage(name); 032 strInterpolation=strInterpolation.trim().toLowerCase(); 033 int interpolation; 034 if("nearest".equals(strInterpolation)) interpolation=railo.runtime.img.Image.INTERPOLATION_NEAREST; 035 else if("bilinear".equals(strInterpolation)) interpolation=railo.runtime.img.Image.INTERPOLATION_BILINEAR; 036 else if("bicubic".equals(strInterpolation)) interpolation=railo.runtime.img.Image.INTERPOLATION_BICUBIC; 037 else if("none".equals(strInterpolation)) interpolation=railo.runtime.img.Image.INTERPOLATION_NONE; 038 else throw new ExpressionException("invalid interpolation definition ["+strInterpolation+"]," + 039 " valid values are [nearest,bilinear,bicubic]"); 040 041 img.rotate(x,y,angle,interpolation); 042 return null; 043 044 } 045 }