[
https://issues.apache.org/jira/browse/PIVOT-748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Edgar Merino updated PIVOT-748:
-------------------------------
Description:
This is a simple, yet useful, Transition which is able to scale the
component(s) attached to it for a given period of time, providing a "zoom"
effect.
ScaleTransition.java
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.apache.pivot.wtk.Component;
import org.apache.pivot.wtk.effects.Decorator;
import org.apache.pivot.wtk.effects.Transition;
import org.apache.pivot.wtk.effects.ScaleDecorator;
/**
* This transition provides a "zoom" effect for components that use it.
* More than one component can be attached to it.
*
* @author emerino
*/
public class ScaleTransition extends Transition {
private class CustomScaleDecorator extends ScaleDecorator {
private float initialScaleX = 1.0f;
private float initialScaleY = 1.0f;
public void setInitialScales(ScaleDecorator decorator) {
initialScaleX = decorator.getScaleX();
initialScaleY = decorator.getScaleY();
}
public float getInitialScaleX() {
return initialScaleX;
}
public float getInitialScaleY() {
return initialScaleY;
}
}
private static final int DEFAULT_DURATION = 200;
private static final int DEFAULT_RATE = 28;
private Map<Component, CustomScaleDecorator> componentDecoratorMap =
Collections.synchronizedMap(new HashMap<Component,
CustomScaleDecorator>());
private boolean reversed;
private float scaleFactor = 0.3f;
public ScaleTransition() {
this(DEFAULT_DURATION, DEFAULT_RATE);
}
public ScaleTransition(int duration, int rate) {
super(duration, rate);
}
public Set<Component> getComponents() {
return componentDecoratorMap.keySet();
}
public void addComponent(Component component) {
if (component == null) {
throw new IllegalArgumentException("Component cannot be null");
}
if (!componentDecoratorMap.containsKey(component)) {
CustomScaleDecorator scaleDecorator = new CustomScaleDecorator();
for (Decorator decorator : component.getDecorators()) {
if (decorator instanceof ScaleDecorator) {
scaleDecorator.setInitialScales((ScaleDecorator) decorator);
break;
}
}
componentDecoratorMap.put(component, scaleDecorator);
component.getDecorators().add(scaleDecorator);
}
}
public void addComponents(Collection<Component> components) {
for (Component c : components) {
addComponent(c);
}
}
public void setScaleFactor(float zoom) {
if (isRunning()) {
throw new IllegalStateException("Transition in progress");
}
this.scaleFactor = zoom;
}
public void setReversed(boolean reversed) {
if (isRunning()) {
throw new IllegalStateException("Transition in progress");
}
this.reversed = reversed;
}
@Override
protected void update() {
float scaleX = 0;
float scaleY = 0;
CustomScaleDecorator scaleDecorator = null;
for (Component component : componentDecoratorMap.keySet()) {
scaleDecorator = componentDecoratorMap.get(component);
if (!reversed) {
scaleX = scaleDecorator.getInitialScaleX() + (scaleFactor *
getPercentComplete());
scaleY = scaleDecorator.getInitialScaleY() + (scaleFactor *
getPercentComplete());
} else {
scaleX = (scaleDecorator.getInitialScaleX() + scaleFactor) -
(scaleFactor * getPercentComplete());
scaleY = (scaleDecorator.getInitialScaleY() + scaleFactor) -
(scaleFactor * getPercentComplete());
}
scaleDecorator.setScaleX(scaleX);
scaleDecorator.setScaleY(scaleY);
component.repaint();
}
}
public void removeComponent(Component component) {
if (componentDecoratorMap.containsKey(component)) {
component.getDecorators().remove(componentDecoratorMap.remove(component));
componentDecoratorMap.remove(component);
}
}
public void clearComponents() {
for (Component c : componentDecoratorMap.keySet()) {
removeComponent(c);
}
}
}
was:
This is a simple, yet useful, Transition which is able to scale the
component(s) attached to it for a given period of time, providing a "zoom"
effect.
ScaleTransition.java
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.apache.pivot.wtk.Component;
import org.apache.pivot.wtk.effects.Decorator;
import org.apache.pivot.wtk.effects.Transition;
import org.apache.pivot.wtk.effects.ScaleDecorator;
/**
* This transition provides a "zoom" effect for components that use it.
* More than one component can be attached to it.
*
* @author emerino
*/
public class ScaleTransition extends Transition {
private class CustomScaleDecorator extends ScaleDecorator {
private float initialScaleX = 1.0f;
private float initialScaleY = 1.0f;
public void setInitialScales(ScaleDecorator decorator) {
initialScaleX = decorator.getScaleX();
initialScaleY = decorator.getScaleY();
}
public float getInitialScaleX() {
return initialScaleX;
}
public float getInitialScaleY() {
return initialScaleY;
}
}
private static final int DEFAULT_DURATION = 200;
private static final int DEFAULT_RATE = 28;
private Map<Component, CustomScaleDecorator> componentDecoratorMap =
Collections.synchronizedMap(new HashMap<Component,
CustomScaleDecorator>());
private boolean reversed;
private float scaleFactor = 0.3f;
public ScaleTransition() {
this(DEFAULT_DURATION, DEFAULT_RATE);
}
public ScaleTransition(int duration, int rate) {
super(duration, rate);
}
public Set<Component> getComponents() {
return componentDecoratorMap.keySet();
}
public void addComponent(Component component) {
if (component == null) {
throw new IllegalArgumentException("Component cannot be null");
}
if (!componentDecoratorMap.containsKey(component)) {
CustomScaleDecorator scaleDecorator = new CustomScaleDecorator();
for (Decorator decorator : component.getDecorators()) {
if (decorator instanceof ScaleDecorator) {
scaleDecorator.setInitialScales(scaleDecorator);
break;
}
}
componentDecoratorMap.put(component, scaleDecorator);
component.getDecorators().add(scaleDecorator);
}
}
public void addComponents(Collection<Component> components) {
for (Component c : components) {
addComponent(c);
}
}
public void setScaleFactor(float zoom) {
if (isRunning()) {
throw new IllegalStateException("Transition in progress");
}
this.scaleFactor = zoom;
}
public void setReversed(boolean reversed) {
if (isRunning()) {
throw new IllegalStateException("Transition in progress");
}
this.reversed = reversed;
}
@Override
protected void update() {
float scaleX = 0;
float scaleY = 0;
CustomScaleDecorator scaleDecorator = null;
for (Component component : componentDecoratorMap.keySet()) {
scaleDecorator = componentDecoratorMap.get(component);
if (!reversed) {
scaleX = scaleDecorator.getInitialScaleX() + (scaleFactor *
getPercentComplete());
scaleY = scaleDecorator.getInitialScaleY() + (scaleFactor *
getPercentComplete());
} else {
scaleX = (scaleDecorator.getInitialScaleX() + scaleFactor) -
(scaleFactor * getPercentComplete());
scaleY = (scaleDecorator.getInitialScaleY() + scaleFactor) -
(scaleFactor * getPercentComplete());
}
scaleDecorator.setScaleX(scaleX);
scaleDecorator.setScaleY(scaleY);
component.repaint();
}
}
public void removeComponent(Component component) {
if (componentDecoratorMap.containsKey(component)) {
component.getDecorators().remove(componentDecoratorMap.remove(component));
componentDecoratorMap.remove(component);
}
}
public void clearComponents() {
for (Component c : componentDecoratorMap.keySet()) {
removeComponent(c);
}
}
}
> ScaleTransition
> ---------------
>
> Key: PIVOT-748
> URL: https://issues.apache.org/jira/browse/PIVOT-748
> Project: Pivot
> Issue Type: New Feature
> Components: wtk-effects
> Reporter: Edgar Merino
>
> This is a simple, yet useful, Transition which is able to scale the
> component(s) attached to it for a given period of time, providing a "zoom"
> effect.
> ScaleTransition.java
> import java.util.Collection;
> import java.util.Collections;
> import java.util.HashMap;
> import java.util.Map;
> import java.util.Set;
> import org.apache.pivot.wtk.Component;
> import org.apache.pivot.wtk.effects.Decorator;
> import org.apache.pivot.wtk.effects.Transition;
> import org.apache.pivot.wtk.effects.ScaleDecorator;
> /**
> * This transition provides a "zoom" effect for components that use it.
> * More than one component can be attached to it.
> *
> * @author emerino
> */
> public class ScaleTransition extends Transition {
> private class CustomScaleDecorator extends ScaleDecorator {
> private float initialScaleX = 1.0f;
> private float initialScaleY = 1.0f;
> public void setInitialScales(ScaleDecorator decorator) {
> initialScaleX = decorator.getScaleX();
> initialScaleY = decorator.getScaleY();
> }
> public float getInitialScaleX() {
> return initialScaleX;
> }
> public float getInitialScaleY() {
> return initialScaleY;
> }
> }
> private static final int DEFAULT_DURATION = 200;
> private static final int DEFAULT_RATE = 28;
> private Map<Component, CustomScaleDecorator> componentDecoratorMap =
> Collections.synchronizedMap(new HashMap<Component,
> CustomScaleDecorator>());
> private boolean reversed;
> private float scaleFactor = 0.3f;
> public ScaleTransition() {
> this(DEFAULT_DURATION, DEFAULT_RATE);
> }
> public ScaleTransition(int duration, int rate) {
> super(duration, rate);
> }
> public Set<Component> getComponents() {
> return componentDecoratorMap.keySet();
> }
> public void addComponent(Component component) {
> if (component == null) {
> throw new IllegalArgumentException("Component cannot be null");
> }
> if (!componentDecoratorMap.containsKey(component)) {
> CustomScaleDecorator scaleDecorator = new CustomScaleDecorator();
> for (Decorator decorator : component.getDecorators()) {
> if (decorator instanceof ScaleDecorator) {
> scaleDecorator.setInitialScales((ScaleDecorator)
> decorator);
> break;
> }
> }
> componentDecoratorMap.put(component, scaleDecorator);
> component.getDecorators().add(scaleDecorator);
> }
> }
> public void addComponents(Collection<Component> components) {
> for (Component c : components) {
> addComponent(c);
> }
> }
> public void setScaleFactor(float zoom) {
> if (isRunning()) {
> throw new IllegalStateException("Transition in progress");
> }
> this.scaleFactor = zoom;
> }
> public void setReversed(boolean reversed) {
> if (isRunning()) {
> throw new IllegalStateException("Transition in progress");
> }
> this.reversed = reversed;
> }
> @Override
> protected void update() {
> float scaleX = 0;
> float scaleY = 0;
> CustomScaleDecorator scaleDecorator = null;
> for (Component component : componentDecoratorMap.keySet()) {
> scaleDecorator = componentDecoratorMap.get(component);
> if (!reversed) {
> scaleX = scaleDecorator.getInitialScaleX() + (scaleFactor *
> getPercentComplete());
> scaleY = scaleDecorator.getInitialScaleY() + (scaleFactor *
> getPercentComplete());
> } else {
> scaleX = (scaleDecorator.getInitialScaleX() + scaleFactor) -
> (scaleFactor * getPercentComplete());
> scaleY = (scaleDecorator.getInitialScaleY() + scaleFactor) -
> (scaleFactor * getPercentComplete());
> }
> scaleDecorator.setScaleX(scaleX);
> scaleDecorator.setScaleY(scaleY);
> component.repaint();
> }
> }
> public void removeComponent(Component component) {
> if (componentDecoratorMap.containsKey(component)) {
>
> component.getDecorators().remove(componentDecoratorMap.remove(component));
> componentDecoratorMap.remove(component);
> }
> }
> public void clearComponents() {
> for (Component c : componentDecoratorMap.keySet()) {
> removeComponent(c);
> }
> }
> }
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