org.jvnet.lafwidget.utils.FadeIgnoreManager Maven / Gradle / Ivy
package org.jvnet.lafwidget.utils;
import java.awt.Component;
import java.io.*;
import java.net.URL;
import java.util.*;
import org.jvnet.lafwidget.LafWidgetRepository;
public class FadeIgnoreManager {
protected Set ignoreAnimationsOn;
protected Set cache;
public FadeIgnoreManager() {
this.ignoreAnimationsOn = new HashSet();
this.cache = new HashSet();
}
/**
* Populates the ignore set. The classpath is scanned for all resources that
* match the name META-INF/lafwidget.animations.properties.
*
* @see #populateFrom(URL)
*/
public void populate() {
try {
Enumeration rs = LafWidgetRepository.class.getClassLoader()
.getResources("META-INF/lafwidget.animations.properties");
while (rs.hasMoreElements()) {
URL rUrl = (URL) rs.nextElement();
this.populateFrom(rUrl);
}
} catch (IOException ioe) {
}
}
public void populateFrom(URL url) {
InputStream is = null;
BufferedReader br = null;
try {
is = url.openStream();
br = new BufferedReader(new InputStreamReader(is));
while (true) {
String line = br.readLine();
if (line == null)
break;
line = line.trim();
if (line.length() == 0)
continue;
this.addToIgnoreAnimations(line);
}
} catch (IOException ioe) {
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ioe) {
}
}
if (br != null) {
try {
br.close();
} catch (IOException ioe) {
}
}
}
}
public void addToIgnoreAnimations(Class clazz) {
this.ignoreAnimationsOn.add(clazz);
}
public void addToIgnoreAnimations(String className) {
try {
this.ignoreAnimationsOn.add(Class.forName(className));
} catch (Exception exc) {
}
}
public synchronized boolean toIgnoreAnimations(Component comp) {
Component currComp = comp;
while (currComp != null) {
Class currClazz = currComp.getClass();
if (cache.contains(currClazz))
return true;
for (Iterator it = this.ignoreAnimationsOn.iterator(); it.hasNext();) {
Class ignoreAnimationClazz = (Class) it.next();
if (ignoreAnimationClazz.isAssignableFrom(currClazz)) {
cache.add(currClazz);
return true;
}
}
currComp = currComp.getParent();
}
return false;
}
}