package railo.runtime.functions.image;
import railo.runtime.PageContext;
import railo.runtime.exp.FunctionException;
import railo.runtime.exp.PageException;
import railo.runtime.ext.function.Function;
import railo.runtime.img.Image;
import railo.runtime.op.Caster;
public class ImageResize implements Function {
public static String call(PageContext pc, Object name,String width, String height) throws PageException {
return call(pc, name, width, height, "highestQuality", 1.0);
}
public static String call(PageContext pc, Object name,String width, String height,String interpolation) throws PageException {
return call(pc, name, width, height, interpolation, 1.0);
}
public static String call(PageContext pc, Object name,String width, String height,String interpolation, double blurFactor) throws PageException {
// image
if(name instanceof String)
name=pc.getVariable(Caster.toString(name));
Image image=Image.toImage(name);
interpolation = interpolation.toLowerCase().trim();
if (blurFactor <= 0.0 || blurFactor > 10.0)
throw new FunctionException(pc,"ImageResize",5,"blurFactor","argument blurFactor must be between 0 and 10");
// MUST interpolation/blur
//if(!"highestquality".equals(interpolation) || blurFactor!=1.0)throw new ExpressionException("argument interpolation and blurFactor are not supported for function ImageResize");
image.resize(width,height,interpolation,blurFactor);
return null;
}
/*private static int toDimension(String label, String dimension) throws PageException {
if(StringUtil.isEmpty(dimension)) return -1;
dimension=dimension.trim();
// int value
int i=Caster.toIntValue(dimension,-1);
if(i>-1) return i;
throw new ExpressionException("attribute ["+label+"] value has an invalid value ["+dimension+"]");
}*/
}