Java JComboBox.getSelectedItem方法代码示例

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * Asks the user to choose a font; returns "" if the user cancels the
 * request.
 */
public synchronized static String askFont() {
	if (allFonts == null)
		allFonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
	JComboBox jcombo = new OurCombobox(allFonts);
	Object ans = show("Font", JOptionPane.INFORMATION_MESSAGE, new Object[] {
			"Please choose the new font:", jcombo
	}, new Object[] {
			"Ok", "Cancel"
	}, "Cancel");
	Object value = jcombo.getSelectedItem();
	if (ans == "Ok" && (value instanceof String))
		return (String) value;
	else
		return "";
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public static void setItems(JComboBox comboBox, Object[] items) {
    Object selected = comboBox.getSelectedItem();
    comboBox.removeAllItems();

    for (int i = 0; i < items.length; i++) {
        comboBox.insertItemAt(items[i], i);
    }
    if (items.length > 0) {
        comboBox.setSelectedIndex(0);
    }
    if (selected != null) {
        comboBox.setSelectedItem(selected);
    }
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
  * Create a graph from interface properties
  * @return a created graph from interface properties
  */
 protected Graph createGraphFromInterfaceProperties(JComboBox cb){
GraphFactory factory = (GraphFactory) cb.getSelectedItem();
if(!factory.getNeededProperties().isEmpty()){
	int np = propertiesPanel.getComponentCount();
	int i=0;
	while (i<np){
		JLabel label = (JLabel)propertiesPanel.getComponent(i);
		i++;
		JTextField value = (JTextField)propertiesPanel.getComponent(i);
		i++;
		
		DefaultValueTypeProperty newDvt = (DefaultValueTypeProperty)(factory.getNeededProperties()).get(label.getText());
		newDvt.setValue(value.getText());
	}
}
Graph g = factory.createGraph(factory.getNeededProperties());
return g;
 }
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
private void langComboBoxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_langComboBoxActionPerformed
    JComboBox jComboBox = (JComboBox) evt.getSource();
    String lang = (String) jComboBox.getSelectedItem();
    String langsTemp = langsTextField.getText();
    if (langsTemp.equals("")) {
        langsTextField.setText(lang);
        langsTemp = lang;
    } else {
        if (langsTemp.contains(lang)) {
            String tempLangs1 = langsTemp.replace("," + lang, "");
            String tempLangs2 = tempLangs1.replace(lang + ",", "");
            String tempLangs3 = tempLangs2.replace(lang, "");
            langsTemp = tempLangs3;
            langsTextField.setText(tempLangs3);
        } else {
            langsTextField.setText(langsTemp + "," + lang);
            langsTemp = langsTemp + "," + lang;
        }
    }
    System.out.println("Selected langs: " + langsTemp);
    langs = langsTemp;
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
@Override
public void actionPerformed(ActionEvent e) {
	JComboBox cb = (JComboBox) e.getSource();
	if (e.getActionCommand().equals("year")) {
		
		selectedYear = (String) cb.getSelectedItem();
		
	}
	else if (e.getActionCommand().equals("broker")) {
	
		brokerList.updateSelectedBroker();
		updateStocks(brokerList.getSelectedBroker(), selectedTransaction);
		 
		
	}
	else if (e.getActionCommand().equals("transaction")) {
		selectedTransaction = (String) cb.getSelectedItem();
		updateStocks(brokerList.getSelectedBroker(), selectedTransaction);
	}
	else if (e.getActionCommand().equals("name")) {
		selectedName = (String) cb.getSelectedItem();
	}
	update();
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * Returns information about component.
 */
@Override
public Hashtable<String, Object> getDump() {
    Hashtable<String, Object> result = super.getDump();
    JComboBox<?> jComboBox = (JComboBox<?>) getSource();
    Object selectedItem = jComboBox.getSelectedItem();
    if (selectedItem != null) {
        result.put(TEXT_DPROP, selectedItem.toString());
    }
    int itemCount = jComboBox.getItemCount();
    String[] items = new String[itemCount];
    for (int i = 0; i < itemCount; i++) {
        if (jComboBox.getItemAt(i) != null) {
            items[i] = jComboBox.getItemAt(i).toString();
        }
    }
    addToDump(result, ITEM_PREFIX_DPROP, items);
    return result;
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
@Override
public void actionPerformed(ActionEvent e) {
	JComboBox<Integer> cb = (JComboBox<Integer>) e.getSource();
	Integer selectedYear = (Integer) cb.getSelectedItem();
	setYearData(selectedYear);

}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
@Override
public void actionPerformed(ActionEvent e) {
    JComboBox cb = (JComboBox) e.getSource();
    JFrame frame = (JFrame) cb.getParent().getParent().getParent().getParent();
    Pair<Procedure, Integer> proc = (Pair<Procedure, Integer>) cb.getSelectedItem();
    MarkovGraph g = partitionGraphs.get(proc);
    assert (g != null);
    GraphVisualizationPanel<MarkovVertex, MarkovEdge> graph_panel = MarkovViewer.getPanel(g);
    graph_panel.add(cb);
    frame.setContentPane(graph_panel);
    frame.setBounds(50, 50, 500, 500);
    frame.setVisible(true);

}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
//		GMA 1.4.8: Now check which combo box event is coming from
		if ( e.getSource() == box ) {

//			***** Changed by A.K.M. 6/23/06 *****
//			setPrototypeDisplayValue restricts the size of the box to a fixed 
//			length of eight characters
			box.setPrototypeDisplayValue("WWWWWWWW");
//			The popup listener adjusts the size of the popup to match the size 
//			of the text being displayed
			JComboBox tempBox = (JComboBox) e.getSource();
			Object comp = tempBox.getUI().getAccessibleChild(tempBox, 0);
			if (!(comp instanceof JPopupMenu)) {
				return;
			}
			JComponent scrollPane = (JComponent) ((JPopupMenu) comp).getComponent(0);
			Dimension size = scrollPane.getPreferredSize();
			UnknownDataSet tester1 = (UnknownDataSet)tempBox.getSelectedItem();
			CustomBRGTable.setReverseYAxis(false);
			CustomBRGTable.setIgnoreZeros(false);
//			6.5 is a hardcoded value that approximates the size of a 
//			character in pixels
//			TODO: Find exact size of text in pixels and adjust 
//			size.width accordingly
			if (tester1 != null) {
				if (maxDBNameLength < tester1.desc.name.length())	{
						maxDBNameLength = tester1.desc.name.length();
				}
				size.width = (int)(maxDBNameLength * 6.5);
				scrollPane.setPreferredSize(size);
			}
//			***** Changed by A.K.M. 6/23/06 *****
		}
	}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 *
 */
@Override
public void actionPerformed(ActionEvent e)
{
    String cmd = e.getActionCommand();

    if (cmd.endsWith("Change"))
    {
        JComboBox<?> cb = (JComboBox<?>)e.getSource();
        Object o = cb.getSelectedItem();

        if (cmd.startsWith("event"))
        {
            DataEntry.state.setCurrentEvent((Event)o);
            Messenger.sendEvent(MT.EVENT_CHANGED, null);
            Prefs.setEventId(eventSelect.getSelectedIndex());
            setCourseList(DataEntry.state.getCurrentEvent().getCourses());
            courseSelect.setSelectedIndex(0);
        }
        else if (cmd.startsWith("course"))
        {
            DataEntry.state.setCurrentCourse((Integer)o);
            Messenger.sendEvent(MT.COURSE_CHANGED, null);
            groupSelect.setSelectedIndex(groupSelect.getSelectedIndex());
        }
        else if (cmd.startsWith("group"))
        {
            DataEntry.state.setCurrentRunGroup((Integer)o);
            Messenger.sendEvent(MT.RUNGROUP_CHANGED, null);
        }
    }
    else if (cmd.endsWith("Print"))
    {
        if (cmd.startsWith("results"))
            BrowserControl.printGroupResults(DataEntry.state, new int[] {DataEntry.state.getCurrentRunGroup()});
    }
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
@Override
public void actionPerformed(ActionEvent e) {
    final JComboBox comboBox = (JComboBox)e.getSource();

    Object selectedItem = comboBox.getSelectedItem();
    if (selectedItem == NEW_ITEM) {
        performingNewItemAction = true;
        try {
            comboBox.setPopupVisible(false);
            dataModel.newItemActionPerformed();
        } finally {
            performingNewItemAction = false;
        }

        setPreviousNonSpecialItem(comboBox);
        // we (or maybe the client) have just selected an item inside an actionPerformed event,
        // which will not send another actionPerformed event for the new item. 
        // We need to make sure all listeners get an event for the new item,
        // thus...
        final Object newSelectedItem = comboBox.getSelectedItem();
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                comboBox.setSelectedItem(newSelectedItem);
            }
        });
    }
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public ComboParameter(JComboBox combo, String parameter, String encoding) {
    super(parameter, encoding);
    this.combo = combo;
    combo.setModel(new DefaultComboBoxModel());
    combo.addItemListener(new ItemListener() {
        @Override
        public void itemStateChanged(ItemEvent e) {
            fireStateChanged();
        }
    });
    original = (ParameterValue) combo.getSelectedItem();
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * If the color in the <code>JComboBox</code> was already selected in
 * another <code>JComboBox</code> it sets a new color in it.
 *
 * @param colorBox
 */
public void updateColors(JComboBox colorBox) {

    List<JComboBox> colorBoxes = getColorBoxes();
    String newColor = (String) colorBox.getSelectedItem();
    for (JComboBox other : colorBoxes) {
        if (other != colorBox && ((String) other.getSelectedItem()).equals(newColor)) {
            other.setSelectedItem(getAvailableColor());
        }
    }
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/** Asks the user to choose a font; returns "" if the user cancels the request. */
public synchronized static String askFont() {
   if (allFonts == null) allFonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
   JComboBox jcombo = new OurCombobox(allFonts);
   Object ans = show("Font", JOptionPane.INFORMATION_MESSAGE,
         new Object[] {"Please choose the new font:", jcombo}, new Object[] {"Ok", "Cancel"}, "Cancel"
   );
   Object value = jcombo.getSelectedItem();
   if (ans=="Ok" && (value instanceof String)) return (String)value; else return "";
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public void actionPerformed(ActionEvent e) {
	JComboBox cb = (JComboBox)e.getSource();
	GraphLayout gl = (GraphLayout)cb.getSelectedItem();
	gl.setGraph(wkPreview.getGraph());
	wkPreview.setLayout(gl);
	wkPreview.doGraphLayout();
}