svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.swing / org.gvsig.expressionevaluator.swing.impl / src / main / java / org / gvsig / expressionevaluator / swing / impl / FilteredListModel.java @ 43983
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.gvsig.expressionevaluator.swing.impl; |
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import java.util.ArrayList; |
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import java.util.Comparator; |
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import java.util.List; |
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import javax.swing.AbstractListModel; |
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import javax.swing.SwingUtilities; |
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import org.apache.commons.io.FilenameUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.swing.Element.ConstantElement; |
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import org.gvsig.tools.swing.api.ListElement; |
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/**
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*
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* @author jjdelcerro
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*/
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class FilteredListModel extends AbstractListModel { |
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private List<ListElement> elements; |
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private List<ListElement> filteredElements; |
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private String filter; |
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public FilteredListModel() {
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this.elements = new ArrayList<>(); |
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this.filteredElements = this.elements; |
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this.filter = null; |
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} |
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@Override
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public int getSize() { |
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return this.filteredElements.size(); |
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} |
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@Override
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public Object getElementAt(int index) { |
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return this.filteredElements.get(index); |
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} |
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void addElement(ListElement element) {
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this.elements.add(element);
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if (this.elements != this.filteredElements) { |
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this.filteredElements.add(element);
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} |
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} |
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public void setFilter(String filter) { |
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if (StringUtils.isEmpty(filter)) {
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this.filter = null; |
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this.filteredElements = this.elements; |
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} else {
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this.filter = filter;
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this.filteredElements = new ArrayList<>(); |
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for (ListElement element : elements) {
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if (FilenameUtils.wildcardMatch(element.getValue().toString().toLowerCase(), this.filter.toLowerCase())) { |
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this.filteredElements.add(element);
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} |
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} |
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} |
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fireContentsChanged(); |
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} |
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private void fireContentsChanged() { |
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if( !SwingUtilities.isEventDispatchThread() ) { |
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SwingUtilities.invokeLater(new Runnable() { |
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@Override
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public void run() { |
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fireContentsChanged(); |
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} |
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}); |
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return;
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} |
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this.fireContentsChanged(this, 0, this.filteredElements.size()); |
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} |
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public String getFilter() { |
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return this.filter; |
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} |
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public void sort(final boolean ascending) { |
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// this.sortForeground(ascending);
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this.sortBackground(ascending);
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} |
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private void sortBackground(final boolean ascending) { |
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Thread th = new Thread(new Runnable() { |
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@Override
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public void run() { |
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sortForeground(ascending); |
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} |
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}, "FilteredListModelSorter");
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th.start(); |
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} |
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private void sortForeground(final boolean ascending) { |
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final List<ListElement> items = new ArrayList<>(elements); |
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final Comparator comparator = ComparatorUtils.naturalComparator(); |
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items.sort(new Comparator<ListElement>() { |
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@Override
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public int compare(ListElement o1, ListElement o2) { |
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int r;
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if (o1 == null && o2 == null) { |
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r = 0;
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} else if (o1 == null && o2 != null) { |
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r = -1;
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} else if (o1 != null && o2 == null) { |
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r = 1;
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} else {
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if( o1.getValue() instanceof ConstantElement ) { |
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r = comparator.compare( |
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((ConstantElement)o1.getValue()).getValue(), |
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((ConstantElement)o2.getValue()).getValue() |
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); |
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} else {
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r = comparator.compare(o1.getValue(),o2.getValue()); |
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} |
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} |
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if (ascending) {
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return r;
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} |
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return r * -1; |
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} |
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}); |
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elements = items; |
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filteredElements = elements; |
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if (filter != null) { |
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setFilter(filter); |
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} else {
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fireContentsChanged(); |
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} |
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} |
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void addElement(Object data) { |
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ListElement e = new ListElement(data.toString(), data);
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this.addElement(e);
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} |
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} |