org.netbeans.swing.tabcontrol.ComponentConverter Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/*
* ComponentConverter.java
*
* Created on March 28, 2004, 9:20 PM
*/
package org.netbeans.swing.tabcontrol;
import java.awt.*;
/**
* A class which can provide a component corresponding to a TabData object.
* While TabData.getComponent can provide a Component via its getComponent()
* method, there are use cases where the tabbed container should contain a
* single component, and the data model should be used to control it (the
* tabbed form of NetBeans' property sheet is one example).
*
* A ComponentConvertor can be plugged into an instance of TabbedContainer
* to enable it to display, for example, the same component for all tabs, which a listener
* on its selection model will reconfigure for the selected tab; or it can
* be used for lazy initialization, to construct components on demand.
*
* @author Tim Boudreau
*/
public interface ComponentConverter {
Component getComponent (TabData data);
/** A default implementation which simply delegates to
* TabData.getComponent() */
static final ComponentConverter DEFAULT = new ComponentConverter() {
public Component getComponent(TabData data) {
return data.getComponent();
}
};
/** A ComponentConverter implementation which always returns the same
* component */
public static final class Fixed implements ComponentConverter {
private final Component component;
public Fixed (Component component) {
this.component = component;
}
public Component getComponent(TabData data) {
return component;
}
}
}