Refactor searchable and categorizable combobox to general method
In case we want to use it for other parts of the UI :)
This commit is contained in:
SiboVG
parent
341ab81b79
commit
0ff32888a1
@ -54,6 +54,6 @@ public class FlightDataTypeGroup {
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@Override
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public String toString() {
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return name;
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return getName();
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}
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}
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@ -1,139 +1,26 @@
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package net.sf.openrocket.gui.simulation;
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import net.sf.openrocket.gui.util.GUIUtil;
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import net.sf.openrocket.gui.util.UITheme;
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import net.sf.openrocket.gui.widgets.PlaceholderTextField;
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import net.sf.openrocket.gui.widgets.SearchableAndCategorizableComboBox;
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import net.sf.openrocket.l10n.Translator;
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import net.sf.openrocket.simulation.FlightDataType;
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import net.sf.openrocket.simulation.FlightDataTypeGroup;
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import net.sf.openrocket.startup.Application;
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import javax.swing.DefaultListCellRenderer;
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import javax.swing.DefaultListModel;
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import javax.swing.JComboBox;
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import javax.swing.JLabel;
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import javax.swing.JList;
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import javax.swing.JMenu;
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import javax.swing.JMenuItem;
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import javax.swing.JPopupMenu;
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import javax.swing.JScrollPane;
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import javax.swing.SwingUtilities;
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import javax.swing.event.ListSelectionEvent;
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import javax.swing.event.ListSelectionListener;
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import javax.swing.plaf.basic.BasicArrowButton;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.EventQueue;
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import java.awt.Point;
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import java.awt.event.KeyAdapter;
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import java.awt.event.KeyEvent;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import java.awt.event.MouseListener;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Hashtable;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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public class FlightDataComboBox extends JComboBox<FlightDataType> {
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private static final Translator trans = Application.getTranslator();
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private final JPopupMenu categoryPopup;
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private final JPopupMenu searchPopup;
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private final PlaceholderTextField searchFieldCategory;
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private final PlaceholderTextField searchFieldSearch;
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private final JList<FlightDataType> filteredList;
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private final FlightDataType[] allTypes;
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private final Hashtable<FlightDataTypeGroup, FlightDataType[]> typeGroupMap;
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private int highlightedListIdx = -1;
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private static Color textSelectionBackground;
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static {
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initColors();
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}
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public FlightDataComboBox(FlightDataTypeGroup[] allGroups, FlightDataType[] types) {
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super(types);
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setEditable(false);
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this.allTypes = types;
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initColors();
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// Create the map of flight data group and corresponding flight data types
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typeGroupMap = createFlightDataGroupMap(allGroups, types);
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// Create the search field widget
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searchFieldCategory = new PlaceholderTextField();
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searchFieldCategory.setPlaceholder(trans.get("FlightDataComboBox.placeholder"));
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searchFieldSearch = new PlaceholderTextField();
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// Create the filtered list
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filteredList = createFilteredList();
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// Create the different popups
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categoryPopup = createCategoryPopup();
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searchPopup = createSearchPopup();
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searchPopup.setPreferredSize(categoryPopup.getPreferredSize());
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// Add key listener for the search fields
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searchFieldCategory.addKeyListener(new KeyAdapter() {
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@Override
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public void keyPressed(KeyEvent e) {
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overrideActionKeys(e);
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}
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public void keyTyped(KeyEvent e) {
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EventQueue.invokeLater(() -> {
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String text = searchFieldCategory.getText();
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highlightedListIdx = 0; // Start with the first item selected
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searchFieldSearch.setText(text);
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if (!text.isEmpty() && !searchPopup.isVisible()) {
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hideCategoryPopup();
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showSearchPopup();
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filter(text);
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}
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});
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}
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});
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searchFieldSearch.addKeyListener(new KeyAdapter() {
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@Override
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public void keyPressed(KeyEvent e) {
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overrideActionKeys(e);
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}
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@Override
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public void keyTyped(KeyEvent e) {
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EventQueue.invokeLater(() -> {
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String text = searchFieldSearch.getText();
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highlightedListIdx = 0; // Start with the first item selected
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searchFieldCategory.setText(text);
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if (text.isEmpty() && !categoryPopup.isVisible()) {
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hideSearchPopup();
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showCategoryPopup();
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}
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filter(text);
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});
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}
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});
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// Override the mouse listeners to use our custom popup
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for (MouseListener mouseListener : getMouseListeners()) {
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removeMouseListener(mouseListener);
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}
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addMouseListeners();
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}
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private static void initColors() {
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updateColors();
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UITheme.Theme.addUIThemeChangeListener(FlightDataComboBox::updateColors);
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}
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private static void updateColors() {
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textSelectionBackground = GUIUtil.getUITheme().getTextSelectionBackgroundColor();
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public static SearchableAndCategorizableComboBox<FlightDataTypeGroup, FlightDataType> createComboBox(FlightDataTypeGroup[] allGroups, FlightDataType[] types) {
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final Map<FlightDataTypeGroup, FlightDataType[]> typeGroupMap = createFlightDataGroupMap(allGroups, types);
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return new SearchableAndCategorizableComboBox<>(typeGroupMap, trans.get("FlightDataComboBox.placeholder"));
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}
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/**
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@ -142,273 +29,26 @@ public class FlightDataComboBox extends JComboBox<FlightDataType> {
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* @param types the types
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* @return the map linking the types to their groups
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*/
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private Hashtable<FlightDataTypeGroup, FlightDataType[]> createFlightDataGroupMap(FlightDataTypeGroup[] groups, FlightDataType[] types) {
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Hashtable<FlightDataTypeGroup, FlightDataType[]> map = new Hashtable<>();
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for (FlightDataTypeGroup group : groups) {
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ArrayList<FlightDataType> listForGroup = new ArrayList<>();
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private static Map<FlightDataTypeGroup, FlightDataType[]> createFlightDataGroupMap(
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FlightDataTypeGroup[] groups, FlightDataType[] types) {
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// Sort the groups based on priority (lower number = higher priority)
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FlightDataTypeGroup[] sortedGroups = groups.clone();
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Arrays.sort(sortedGroups, Comparator.comparingInt(FlightDataTypeGroup::getPriority));
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Map<FlightDataTypeGroup, FlightDataType[]> map = new LinkedHashMap<>();
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for (FlightDataTypeGroup group : sortedGroups) {
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List<FlightDataType> itemsForGroup = new ArrayList<>();
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for (FlightDataType type : types) {
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if (type.getGroup().equals(group)) {
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listForGroup.add(type);
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itemsForGroup.add(type);
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}
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}
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map.put(group, listForGroup.toArray(new FlightDataType[0]));
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// Sort the types within each group based on priority
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itemsForGroup.sort(Comparator.comparingInt(FlightDataType::getGroupPriority));
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map.put(group, itemsForGroup.toArray(new FlightDataType[0]));
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}
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return map;
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}
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private JPopupMenu createCategoryPopup() {
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final JPopupMenu menu = new JPopupMenu();
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// Add the search field at the top
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menu.add(searchFieldCategory);
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menu.addSeparator(); // Separator between search field and menu items
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// Fill the menu with the groups
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for (FlightDataTypeGroup group : typeGroupMap.keySet()) {
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JMenu groupList = new JMenu(group.getName());
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FlightDataType[] typesForGroup = typeGroupMap.get(group);
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if (typesForGroup != null) {
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for (FlightDataType type : typesForGroup) {
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JMenuItem typeItem = new JMenuItem(type.getName());
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typeItem.addActionListener(e -> {
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setSelectedItem(type);
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});
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groupList.add(typeItem);
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}
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}
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menu.add(groupList);
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}
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return menu;
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}
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private JPopupMenu createSearchPopup() {
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final JPopupMenu menu = new JPopupMenu();
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menu.setLayout(new BorderLayout());
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// Add the search field at the top
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menu.add(searchFieldSearch, BorderLayout.NORTH);
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menu.addSeparator();
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menu.add(new JScrollPane(filteredList));
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return menu;
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}
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private JList<FlightDataType> createFilteredList() {
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JList<FlightDataType> list = new JList<>();
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list.setCellRenderer(new DefaultListCellRenderer() {
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@Override
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public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
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JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
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FlightDataType type = (FlightDataType) value;
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String typeName = type.toString();
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if (typeName.toLowerCase().contains(searchFieldSearch.getText().toLowerCase())) {
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// Use HTML to underline matching text
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typeName = typeName.replaceAll("(?i)(" + searchFieldSearch.getText() + ")", "<u>$1</u>");
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label.setText("<html>" + typeName + "</html>");
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}
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// Set the hover color
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if (highlightedListIdx == index || isSelected) {
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label.setBackground(textSelectionBackground);
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label.setOpaque(true);
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} else {
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label.setOpaque(false);
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}
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return label;
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}
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});
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list.addMouseMotionListener(new MouseAdapter() {
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@Override
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public void mouseMoved(MouseEvent e) {
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Point p = new Point(e.getX(),e.getY());
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int index = list.locationToIndex(p);
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if (index != highlightedListIdx) {
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highlightedListIdx = index;
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list.repaint();
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}
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}
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});
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list.addListSelectionListener(new ListSelectionListener() {
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@Override
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public void valueChanged(ListSelectionEvent e) {
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// Check if the event is in the final phase of change
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if (!e.getValueIsAdjusting()) {
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selectComboBoxItemFromFilteredList();
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}
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}
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});
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return list;
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}
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private void selectComboBoxItemFromFilteredList() {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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FlightDataType selectedType = filteredList.getSelectedValue();
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if (selectedType != null) {
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FlightDataComboBox.this.setSelectedItem(selectedType);
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// Hide the popups after selection
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hideCategoryPopup();
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hideSearchPopup();
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}
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}
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});
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}
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private void showCategoryPopup() {
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categoryPopup.show(this, 0, getHeight());
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searchFieldSearch.setText("");
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searchFieldCategory.setText("");
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}
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private void hideCategoryPopup() {
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categoryPopup.setVisible(false);
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}
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private void showSearchPopup() {
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searchPopup.show(this, 0, getHeight());
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}
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private void hideSearchPopup() {
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searchPopup.setVisible(false);
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}
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private void filter(String text) {
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filteredList.removeAll();
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String searchText = text.toLowerCase();
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DefaultListModel<FlightDataType> filteredModel = new DefaultListModel<>();
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for (FlightDataType item : this.allTypes) {
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if (item.toString().toLowerCase().contains(searchText)) {
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filteredModel.addElement(item);
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}
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}
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filteredList.setModel(filteredModel);
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filteredList.revalidate();
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filteredList.repaint();
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}
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private Component getArrowButton() {
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for (Component child : getComponents()) {
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if (child instanceof BasicArrowButton) {
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return child;
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}
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}
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return null;
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}
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@Override
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public void showPopup() {
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// Override the default JComboBox showPopup() to do nothing
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// Our custom popup will be shown by the MouseListener
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}
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@Override
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public boolean isPopupVisible() {
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return categoryPopup.isVisible() || searchPopup.isVisible();
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}
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/**
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* Override the default action keys (escape, enter, arrow keys) to do our own actions.
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* @param e the key event
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*/
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private void overrideActionKeys(KeyEvent e) {
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if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
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hideCategoryPopup();
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hideSearchPopup();
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} else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
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selectHighlightedItemInFilteredList();
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} else if (e.getKeyCode() == KeyEvent.VK_DOWN || e.getKeyCode() == KeyEvent.VK_RIGHT) {
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highlightNextItemInFilteredList();
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} else if (e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_LEFT) {
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highlightPreviousItemInFilteredList();
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}
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}
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/**
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* Select the highlighted item in the filtered list and hide the popups.
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*/
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private void selectHighlightedItemInFilteredList() {
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if (highlightedListIdx >= filteredList.getModel().getSize() || highlightedListIdx < 0 || !searchPopup.isVisible()) {
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return;
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}
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filteredList.setSelectedIndex(highlightedListIdx);
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selectComboBoxItemFromFilteredList();
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}
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/**
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* Highlight the next item in the filtered list.
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*/
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private void highlightNextItemInFilteredList() {
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if (highlightedListIdx + 1 >= filteredList.getModel().getSize() || !searchPopup.isVisible()) {
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return;
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}
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highlightedListIdx++;
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filteredList.ensureIndexIsVisible(highlightedListIdx);
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filteredList.repaint();
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}
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/**
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* Highlight the previous item in the filtered list.
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*/
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private void highlightPreviousItemInFilteredList() {
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if (highlightedListIdx <= 0 || !searchPopup.isVisible()) {
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return;
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}
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highlightedListIdx--;
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filteredList.ensureIndexIsVisible(highlightedListIdx);
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filteredList.repaint();
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}
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/**
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* Add mouse listener to widgets of the combobox to open our custom popup menu.
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*/
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private void addMouseListeners() {
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addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e) {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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if (!isPopupVisible()) {
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showCategoryPopup();
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}
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}
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});
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}
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});
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Component arrowButton = getArrowButton();
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if (arrowButton != null) {
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for (MouseListener mouseListener : arrowButton.getMouseListeners()) {
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arrowButton.removeMouseListener(mouseListener);
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}
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arrowButton.addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e) {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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if (!isPopupVisible()) {
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showCategoryPopup();
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}
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}
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});
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}
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});
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}
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}
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}
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@ -488,7 +488,7 @@ public class SimulationPlotPanel extends JPanel {
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private final String[] POSITIONS = { AUTO_NAME, LEFT_NAME, RIGHT_NAME };
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private final int index;
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private JComboBox<FlightDataType> typeSelector;
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private final JComboBox<FlightDataType> typeSelector;
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private UnitSelector unitSelector;
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private JComboBox<String> axisSelector;
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@ -498,7 +498,7 @@ public class SimulationPlotPanel extends JPanel {
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this.index = plotIndex;
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typeSelector = new FlightDataComboBox(FlightDataTypeGroup.ALL_GROUPS, types);
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typeSelector = FlightDataComboBox.createComboBox(FlightDataTypeGroup.ALL_GROUPS, types);
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typeSelector.setSelectedItem(type);
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typeSelector.addItemListener(new ItemListener() {
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@Override
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@ -0,0 +1,481 @@
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package net.sf.openrocket.gui.widgets;
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import net.sf.openrocket.gui.util.GUIUtil;
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import net.sf.openrocket.gui.util.UITheme;
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import javax.swing.AbstractListModel;
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import javax.swing.DefaultComboBoxModel;
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import javax.swing.DefaultListCellRenderer;
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import javax.swing.JComboBox;
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import javax.swing.JLabel;
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import javax.swing.JList;
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import javax.swing.JMenu;
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import javax.swing.JMenuItem;
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import javax.swing.JPopupMenu;
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import javax.swing.JScrollPane;
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import javax.swing.SwingUtilities;
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import javax.swing.event.ListSelectionEvent;
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import javax.swing.event.ListSelectionListener;
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import javax.swing.plaf.basic.BasicArrowButton;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.EventQueue;
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import java.awt.Point;
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import java.awt.event.KeyAdapter;
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import java.awt.event.KeyEvent;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import java.awt.event.MouseListener;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Comparator;
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||||
import java.util.HashSet;
|
||||
import java.util.Iterator;
|
||||
import java.util.Map;
|
||||
import java.util.Set;
|
||||
import java.util.SortedSet;
|
||||
import java.util.TreeSet;
|
||||
|
||||
/**
|
||||
* A combo box that has a search box for searching the items in the combobox.
|
||||
* If no text is entered, the combobox items are displayed in a categorized popup menu, grouped according to their groups.
|
||||
* @param <E> The type of the group
|
||||
* @param <T> The type of the items
|
||||
*/
|
||||
public class SearchableAndCategorizableComboBox<E, T> extends JComboBox<T> {
|
||||
|
||||
private final JPopupMenu categoryPopup;
|
||||
private final JPopupMenu searchPopup;
|
||||
private final PlaceholderTextField searchFieldCategory;
|
||||
private final PlaceholderTextField searchFieldSearch;
|
||||
private final JList<T> filteredList;
|
||||
|
||||
private final T[] allItems;
|
||||
private final Map<E, T[]> itemGroupMap;
|
||||
|
||||
private int highlightedListIdx = -1;
|
||||
|
||||
private static Color textSelectionBackground;
|
||||
|
||||
static {
|
||||
initColors();
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a searchable and categorizable combo box.
|
||||
* @param itemGroupMap the map of items and their corresponding groups
|
||||
* @param placeHolderText the placeholder text for the search field (when no text is entered)
|
||||
*/
|
||||
public SearchableAndCategorizableComboBox(Map<E, T[]> itemGroupMap, String placeHolderText) {
|
||||
super();
|
||||
setEditable(false);
|
||||
|
||||
this.itemGroupMap = itemGroupMap;
|
||||
this.allItems = extractItemsFromMap(itemGroupMap);
|
||||
setModel(new DefaultComboBoxModel<>(allItems));
|
||||
|
||||
initColors();
|
||||
|
||||
// Create the search field widget
|
||||
searchFieldCategory = new PlaceholderTextField();
|
||||
searchFieldCategory.setPlaceholder(placeHolderText);
|
||||
searchFieldSearch = new PlaceholderTextField();
|
||||
|
||||
// Create the filtered list
|
||||
filteredList = createFilteredList();
|
||||
|
||||
// Create the different popups
|
||||
categoryPopup = createCategoryPopup();
|
||||
searchPopup = createSearchPopup();
|
||||
searchPopup.setPreferredSize(categoryPopup.getPreferredSize());
|
||||
|
||||
// Add key listener for the search fields
|
||||
searchFieldCategory.addKeyListener(new KeyAdapter() {
|
||||
@Override
|
||||
public void keyPressed(KeyEvent e) {
|
||||
overrideActionKeys(e);
|
||||
}
|
||||
|
||||
public void keyTyped(KeyEvent e) {
|
||||
EventQueue.invokeLater(() -> {
|
||||
String text = searchFieldCategory.getText();
|
||||
highlightedListIdx = 0; // Start with the first item selected
|
||||
searchFieldSearch.setText(text);
|
||||
if (!text.isEmpty() && !searchPopup.isVisible()) {
|
||||
hideCategoryPopup();
|
||||
showSearchPopup();
|
||||
filter(text);
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
searchFieldSearch.addKeyListener(new KeyAdapter() {
|
||||
@Override
|
||||
public void keyPressed(KeyEvent e) {
|
||||
overrideActionKeys(e);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void keyTyped(KeyEvent e) {
|
||||
EventQueue.invokeLater(() -> {
|
||||
String text = searchFieldSearch.getText();
|
||||
highlightedListIdx = 0; // Start with the first item selected
|
||||
searchFieldCategory.setText(text);
|
||||
if (text.isEmpty() && !categoryPopup.isVisible()) {
|
||||
hideSearchPopup();
|
||||
showCategoryPopup();
|
||||
}
|
||||
filter(text);
|
||||
});
|
||||
}
|
||||
});
|
||||
|
||||
// Override the mouse listeners to use our custom popup
|
||||
for (MouseListener mouseListener : getMouseListeners()) {
|
||||
removeMouseListener(mouseListener);
|
||||
}
|
||||
|
||||
addMouseListeners();
|
||||
}
|
||||
|
||||
private static void initColors() {
|
||||
updateColors();
|
||||
UITheme.Theme.addUIThemeChangeListener(SearchableAndCategorizableComboBox::updateColors);
|
||||
}
|
||||
|
||||
private static void updateColors() {
|
||||
textSelectionBackground = GUIUtil.getUITheme().getTextSelectionBackgroundColor();
|
||||
}
|
||||
|
||||
private T[] extractItemsFromMap(Map<E, T[]> itemGroupMap) {
|
||||
Set<T> uniqueItems = new HashSet<>(); // Use a Set to ensure uniqueness
|
||||
for (E group : itemGroupMap.keySet()) {
|
||||
uniqueItems.addAll(Arrays.asList(itemGroupMap.get(group)));
|
||||
}
|
||||
ArrayList<T> items = new ArrayList<>(uniqueItems);
|
||||
return items.toArray((T[]) new Object[0]);
|
||||
}
|
||||
|
||||
private JPopupMenu createCategoryPopup() {
|
||||
final JPopupMenu menu = new JPopupMenu();
|
||||
|
||||
// Add the search field at the top
|
||||
menu.add(searchFieldCategory);
|
||||
menu.addSeparator(); // Separator between search field and menu items
|
||||
|
||||
// Fill the menu with the groups
|
||||
for (E group : itemGroupMap.keySet()) {
|
||||
JMenu groupList = new JMenu(group.toString());
|
||||
T[] itemsForGroup = itemGroupMap.get(group);
|
||||
|
||||
if (itemsForGroup != null) {
|
||||
for (T item : itemsForGroup) {
|
||||
JMenuItem itemMenu = new JMenuItem(item.toString());
|
||||
itemMenu.addActionListener(e -> {
|
||||
setSelectedItem(item);
|
||||
});
|
||||
groupList.add(itemMenu);
|
||||
}
|
||||
}
|
||||
|
||||
menu.add(groupList);
|
||||
}
|
||||
|
||||
return menu;
|
||||
}
|
||||
|
||||
private JPopupMenu createSearchPopup() {
|
||||
final JPopupMenu menu = new JPopupMenu();
|
||||
menu.setLayout(new BorderLayout());
|
||||
|
||||
// Add the search field at the top
|
||||
menu.add(searchFieldSearch, BorderLayout.NORTH);
|
||||
menu.addSeparator();
|
||||
|
||||
menu.add(new JScrollPane(filteredList));
|
||||
|
||||
return menu;
|
||||
}
|
||||
|
||||
private JList<T> createFilteredList() {
|
||||
JList<T> list = new JList<>(); // Don't fill the list with the items yet, this will be done during filtering
|
||||
|
||||
list.setCellRenderer(new DefaultListCellRenderer() {
|
||||
@Override
|
||||
public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
|
||||
JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
|
||||
T item = (T) value;
|
||||
String itemName = item.toString();
|
||||
|
||||
if (itemName.toLowerCase().contains(searchFieldSearch.getText().toLowerCase())) {
|
||||
// Use HTML to underline matching text
|
||||
itemName = itemName.replaceAll("(?i)(" + searchFieldSearch.getText() + ")", "<u>$1</u>");
|
||||
label.setText("<html>" + itemName + "</html>");
|
||||
}
|
||||
|
||||
// Set the hover color
|
||||
if (highlightedListIdx == index || isSelected) {
|
||||
label.setBackground(textSelectionBackground);
|
||||
label.setOpaque(true);
|
||||
} else {
|
||||
label.setOpaque(false);
|
||||
}
|
||||
|
||||
return label;
|
||||
}
|
||||
});
|
||||
|
||||
list.addMouseMotionListener(new MouseAdapter() {
|
||||
@Override
|
||||
public void mouseMoved(MouseEvent e) {
|
||||
Point p = new Point(e.getX(),e.getY());
|
||||
int index = list.locationToIndex(p);
|
||||
if (index != highlightedListIdx) {
|
||||
highlightedListIdx = index;
|
||||
list.repaint();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
list.addListSelectionListener(new ListSelectionListener() {
|
||||
@Override
|
||||
public void valueChanged(ListSelectionEvent e) {
|
||||
// Check if the event is in the final phase of change
|
||||
if (!e.getValueIsAdjusting()) {
|
||||
selectComboBoxItemFromFilteredList();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
return list;
|
||||
}
|
||||
|
||||
private void selectComboBoxItemFromFilteredList() {
|
||||
SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
T selectedItem = filteredList.getSelectedValue();
|
||||
if (selectedItem != null) {
|
||||
SearchableAndCategorizableComboBox.this.setSelectedItem(selectedItem);
|
||||
// Hide the popups after selection
|
||||
hideCategoryPopup();
|
||||
hideSearchPopup();
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
private void showCategoryPopup() {
|
||||
categoryPopup.show(this, 0, getHeight());
|
||||
searchFieldSearch.setText("");
|
||||
searchFieldCategory.setText("");
|
||||
}
|
||||
|
||||
private void hideCategoryPopup() {
|
||||
categoryPopup.setVisible(false);
|
||||
}
|
||||
|
||||
private void showSearchPopup() {
|
||||
searchPopup.show(this, 0, getHeight());
|
||||
}
|
||||
|
||||
private void hideSearchPopup() {
|
||||
searchPopup.setVisible(false);
|
||||
}
|
||||
|
||||
private void filter(String text) {
|
||||
filteredList.removeAll();
|
||||
String searchText = text.toLowerCase();
|
||||
SortedListModel<T> filteredModel = new SortedListModel<>();
|
||||
|
||||
for (T item : this.allItems) {
|
||||
if (item.toString().toLowerCase().contains(searchText)) {
|
||||
filteredModel.add(item);
|
||||
}
|
||||
}
|
||||
|
||||
filteredList.setModel(filteredModel);
|
||||
filteredList.revalidate();
|
||||
filteredList.repaint();
|
||||
}
|
||||
|
||||
private Component getArrowButton() {
|
||||
for (Component child : getComponents()) {
|
||||
if (child instanceof BasicArrowButton) {
|
||||
return child;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void showPopup() {
|
||||
// Override the default JComboBox showPopup() to do nothing
|
||||
// Our custom popup will be shown by the MouseListener
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isPopupVisible() {
|
||||
return categoryPopup.isVisible() || searchPopup.isVisible();
|
||||
}
|
||||
|
||||
/**
|
||||
* Override the default action keys (escape, enter, arrow keys) to do our own actions.
|
||||
* @param e the key event
|
||||
*/
|
||||
private void overrideActionKeys(KeyEvent e) {
|
||||
if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
|
||||
hideCategoryPopup();
|
||||
hideSearchPopup();
|
||||
} else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
|
||||
selectHighlightedItemInFilteredList();
|
||||
} else if (e.getKeyCode() == KeyEvent.VK_DOWN || e.getKeyCode() == KeyEvent.VK_RIGHT) {
|
||||
highlightNextItemInFilteredList();
|
||||
} else if (e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_LEFT) {
|
||||
highlightPreviousItemInFilteredList();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Select the highlighted item in the filtered list and hide the popups.
|
||||
*/
|
||||
private void selectHighlightedItemInFilteredList() {
|
||||
if (highlightedListIdx >= filteredList.getModel().getSize() || highlightedListIdx < 0 || !searchPopup.isVisible()) {
|
||||
return;
|
||||
}
|
||||
filteredList.setSelectedIndex(highlightedListIdx);
|
||||
selectComboBoxItemFromFilteredList();
|
||||
}
|
||||
|
||||
/**
|
||||
* Highlight the next item in the filtered list.
|
||||
*/
|
||||
private void highlightNextItemInFilteredList() {
|
||||
if (highlightedListIdx + 1 >= filteredList.getModel().getSize() || !searchPopup.isVisible()) {
|
||||
return;
|
||||
}
|
||||
highlightedListIdx++;
|
||||
filteredList.ensureIndexIsVisible(highlightedListIdx);
|
||||
filteredList.repaint();
|
||||
}
|
||||
|
||||
/**
|
||||
* Highlight the previous item in the filtered list.
|
||||
*/
|
||||
private void highlightPreviousItemInFilteredList() {
|
||||
if (highlightedListIdx <= 0 || !searchPopup.isVisible()) {
|
||||
return;
|
||||
}
|
||||
highlightedListIdx--;
|
||||
filteredList.ensureIndexIsVisible(highlightedListIdx);
|
||||
filteredList.repaint();
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* Add mouse listener to widgets of the combobox to open our custom popup menu.
|
||||
*/
|
||||
private void addMouseListeners() {
|
||||
addMouseListener(new MouseAdapter() {
|
||||
@Override
|
||||
public void mouseClicked(MouseEvent e) {
|
||||
SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
if (!isPopupVisible()) {
|
||||
showCategoryPopup();
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
|
||||
Component arrowButton = getArrowButton();
|
||||
if (arrowButton != null) {
|
||||
for (MouseListener mouseListener : arrowButton.getMouseListeners()) {
|
||||
arrowButton.removeMouseListener(mouseListener);
|
||||
}
|
||||
arrowButton.addMouseListener(new MouseAdapter() {
|
||||
@Override
|
||||
public void mouseClicked(MouseEvent e) {
|
||||
SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
if (!isPopupVisible()) {
|
||||
showCategoryPopup();
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
private static class SortedListModel<T> extends AbstractListModel<T> {
|
||||
private final SortedSet<T> model;
|
||||
|
||||
public SortedListModel() {
|
||||
Comparator<T> alphabeticalComparator = new Comparator<T>() {
|
||||
@Override
|
||||
public int compare(T o1, T o2) {
|
||||
return o1.toString().compareToIgnoreCase(o2.toString());
|
||||
}
|
||||
};
|
||||
|
||||
model = new TreeSet<>(alphabeticalComparator);
|
||||
}
|
||||
|
||||
public int getSize() {
|
||||
return model.size();
|
||||
}
|
||||
|
||||
public T getElementAt(int index) {
|
||||
return (T) model.toArray()[index];
|
||||
}
|
||||
|
||||
public void add(T element) {
|
||||
if (model.add(element)) {
|
||||
fireContentsChanged(this, 0, getSize());
|
||||
}
|
||||
}
|
||||
public void addAll(T[] elements) {
|
||||
Collection<T> c = Arrays.asList(elements);
|
||||
model.addAll(c);
|
||||
fireContentsChanged(this, 0, getSize());
|
||||
}
|
||||
|
||||
public void clear() {
|
||||
model.clear();
|
||||
fireContentsChanged(this, 0, getSize());
|
||||
}
|
||||
|
||||
public boolean contains(T element) {
|
||||
return model.contains(element);
|
||||
}
|
||||
|
||||
public T firstElement() {
|
||||
return model.first();
|
||||
}
|
||||
|
||||
public Iterator<T> iterator() {
|
||||
return model.iterator();
|
||||
}
|
||||
|
||||
public T lastElement() {
|
||||
return model.last();
|
||||
}
|
||||
|
||||
public boolean removeElement(T element) {
|
||||
boolean removed = model.remove(element);
|
||||
if (removed) {
|
||||
fireContentsChanged(this, 0, getSize());
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user