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/*
* VeryComplexListDataEvent.java
*
* Created on November 6, 2003, 10:28 AM
*/
package org.netbeans.swing.tabcontrol.event;
import org.netbeans.swing.tabcontrol.TabData;
import java.util.Arrays;
/**
* Event which provides granular data on setTabs() events which may contain
* arbitrary differences, moves, additions and removals of array contents (or no
* changes at all).
* <p>
* This event class is used in the case of calls to TabDataModel.setTabs(),
* where one array of TabData objects is replaced with a different array of
* TabData objects, which may contain additions, removals, deletions or moves.
* The heavy lifting is done by <code>ArrayDiff</code>, which provides lists of
* the affected indices for those things that are added/removed/changed/
* deleted.
* <p>
* Note that this class should eventually be merged with ComplexListDataEvent, along with
* some normalization of how things are done - it was written for expedience, not beauty.
*
* @author Tim Boudreau
* @see org.netbeans.swing.tabcontrol.event.ArrayDiff
*/
public final class VeryComplexListDataEvent extends ComplexListDataEvent {
TabData[] old, nue;
//XXX, probably the structure of ComplexListDataEvent should eventually
//be modified to work more like this; the question is if it's killing
//a mosquito with a sledgehammer for simple changes - most changes will
//be simple, after all.
/**
* Creates a new instance of VeryComplexListDataEvent
*/
public VeryComplexListDataEvent(Object source, TabData[] old,
TabData[] nue) {
super(source, ITEMS_CHANGED, -1, -1);
this.old = old;
this.nue = nue;
}
/**
* Returns an ArrayDiff object if the two arrays this event was created with
* are not identical
*/
public ArrayDiff getDiff() {
return ArrayDiff.createDiff(old, nue);
}
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("VeryComplexListEvent - old array: ");
sb.append(Arrays.asList(old));
sb.append(" new array: ");
sb.append(Arrays.asList(nue));
sb.append(" diff: ");
sb.append(getDiff());
return sb.toString();
}
private static final void arr2str(Object[] o, StringBuffer sb) {
for (int i = 0; i < o.length; i++) {
sb.append(o[i]);
if (i != o.length - 1) {
sb.append(","); //NOI18N
}
}
}
}
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