/*
* Copyright 2008-2009 Adam Tacy <adam.tacy AT gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.adamtacy.client.ui.effects.core;
import java.util.Iterator;
import org.adamtacy.client.ui.effects.NEffect;
import org.adamtacy.client.ui.effects.events.EffectSteppingEvent;
import com.google.gwt.dom.client.Element;
/**
* Class to morph between 2 scalar values, e.g. 0 -> 100
*
*/
public class NMorphScalar extends NEffect {
/**
* Instance of NChangeScalar Action
*/
protected NChangeScalarAction scalarStyleImpl = new NChangeScalarAction();
// Which style component are we changing
protected String styleComponentToChange = "";
public NMorphScalar(){}
public NMorphScalar(Element el, String styleName){
this(styleName);
addEffectElement(el);
}
public NMorphScalar(Element el, String styleName, String styleStart, String styleEnd){
this(styleName, styleStart, styleEnd);
addEffectElement(el);
}
public NMorphScalar(String styleName) {
super();
styleComponentToChange = styleName;
}
public NMorphScalar(String styleName, String styleStart, String styleEnd) {
this(styleName);
if (!styleStart.equals("")) {
setStartValue(styleStart);
}
setEndValue(styleEnd);
}
public double getEndValue() {
return scalarStyleImpl.end;
}
public double getStartValue() {
return scalarStyleImpl.start;
}
public StepFunctionInterface getStepFunction(){
return scalarStyleImpl.getStepFunction();
}
@Override
protected void onUpdate(double progress) {
super.onUpdate(progress);
for (Iterator<Element> iter = effectElements.iterator(); iter.hasNext();){
Element e = iter.next();
Double ret = scalarStyleImpl.performStep(e, styleComponentToChange, progress);
fireEvent(new EffectSteppingEvent(progress, ret));
}
}
/** Change the ending number */
public void setEndValue(String newEnd) {
scalarStyleImpl.setEndValue(newEnd);
if (!effectElements.isEmpty()) setUpEffect();
}
/** Change the starting number */
public void setStartValue(String newStart) {
scalarStyleImpl.setStartValue(newStart);
if (!effectElements.isEmpty()) setUpEffect();
}
public void setStepFunction(StepFunctionInterface newStepFunction){
scalarStyleImpl.setStepFunction(newStepFunction);
}
@Override
public void setUpEffect() {
registerEffectElement();
for (Iterator<Element> iter = effectElements.iterator(); iter.hasNext();){
Element e = iter.next();
scalarStyleImpl.setUp(e, styleComponentToChange, 0);
}
}
@Override
public void tearDownEffect() {
for (Iterator<Element> iter = effectElements.iterator(); iter.hasNext();){
Element e = iter.next();
scalarStyleImpl.tearDownEffect(e);
}
}
}