net.sf.gluebooster.java.booster.basic.transformation.CallableToShape Maven / Gradle / Ivy
package net.sf.gluebooster.java.booster.basic.transformation;
import java.awt.Rectangle;
import java.awt.Shape;
import net.sf.gluebooster.java.booster.essentials.eventsCommands.Callable;
import net.sf.gluebooster.java.booster.essentials.eventsCommands.CallableAbstraction;
/**
* Transformation to a shape.
*
* @defaultParamText name name of the callable
*
* @author cbauer
*
* @param
*/
public class CallableToShape extends CallableAbstraction {
/**
* Create a string within a rectangle
*/
private static final String TYPE_RECTANGLE_AROUND_STRING = "rectangle around string";
/**
* Converts objects to strings. Used for type TYPE_RECTANGLE_AROUND_STRING
*/
private Callable toString;
/**
* Used by tests
*/
private CallableToShape() {
}
/**
*
* @param type
* type of the callable
*/
private CallableToShape(Object name, Object type) {
super(name, type);
}
/**
* Creates a callable that creates a rectangle wide enough to contain a given string (the call parameter)
*
* @param toStringTransformer
* creates the string of the rectangle
* @return the created transformer
*/
public static CallableAbstraction createRectangleForString(Object name,
Callable toStringTransformer) {
CallableToShape result = new CallableToShape(name, TYPE_RECTANGLE_AROUND_STRING);
result.toString = toStringTransformer;
return result;
}
@Override
protected Result callImpl(Object... parameters) throws Exception {
if (parameters.length == 0) {
return null;
}
Object input = parameters[0];
if (input == null) {
return null;
}
Object type = getType();
if (TYPE_RECTANGLE_AROUND_STRING.equals(type)) {
return (Result) new Rectangle(toString.call(input).length() * 7, 20); // TODO adapt to real size of string
} else {
throw new IllegalStateException("Type not supported: " + type);
}
}
}