Java JComboBox.getItemAt方法代码示例

import javax.swing.JComboBox; //导入方法依赖的package包/类
public void testComboboxWithDrivers() throws Exception {
    setUpDrivers();
    JComboBox combo = new JComboBox();
    DatabaseExplorerInternalUIs.connect(combo, JDBCDriverManager.getDefault());

    assertEquals(3, combo.getItemCount());
    JdbcUrl url = (JdbcUrl)combo.getItemAt(0);
    assertDriversEqual(driver2, url.getDriver());
    assertEquals(driver2.getClassName(), url.getClassName());
    assertEquals(driver2.getDisplayName(), url.getDisplayName());
    
    url = (JdbcUrl)combo.getItemAt(1);
    assertDriversEqual(driver1, url.getDriver());
    assertEquals(driver1.getClassName(), url.getClassName());
    assertEquals(driver1.getDisplayName(), url.getDisplayName());
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * Searches LayerItemPresenter combobox by the item's display name.
 */
private static String searchLIPCategoryCombo(final JComboBox lpCombo, final String displayName) {
    String path = null;
    for (int i = 0; i < lpCombo.getItemCount(); i++) {
        Object item = lpCombo.getItemAt(i);
        if (!(item instanceof LayerItemPresenter)) {
            continue;
        }
        LayerItemPresenter presenter = (LayerItemPresenter) lpCombo.getItemAt(i);
        if (displayName.equals(presenter.getDisplayName())) {
            path = presenter.getFullPath();
            break;
        }
    }
    return path;
}
 

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
/**
 * Bind Match Type option to a combo box.
 *
 * @param comboBox Combo box to control and display the match type. The
 * model of the combo box can contain only items of type {@link MatchType}.
 * {@link MatchType#LITERAL} and {@link MatchType#REGEXP} are mandatory in
 * the model.
 *
 * @since api.search/1.11
 */
public void bindMatchTypeComboBox(@NonNull final JComboBox comboBox) {
    Parameters.notNull("comboBox", comboBox);                       //NOI18N

    boolean regexpFound = false, literalFound = false;
    for (int i = 0; i < comboBox.getItemCount(); i++) {
        if (comboBox.getItemAt(i) == MatchType.LITERAL) {
            literalFound = true;
        } else if (comboBox.getItemAt(i) == MatchType.REGEXP) {
            regexpFound = true;
        } else if (!(comboBox.getItemAt(i) instanceof MatchType)) {
            throw new IllegalArgumentException("Model of the combo "//NOI18N
                    + "box can contain only MatchType items");      //NOI18N
        }
    }
    if (!(regexpFound && literalFound)) {
        throw new IllegalArgumentException(
                "At least MatchType.LITERAL and MatchType.REGEXP " //NOI18N
                + "must be contained in the combo box model.");     //NOI18N
    }
    if (matchTypeComboBox != null) {
        throw new IllegalStateException(
                "Already bound with option MATCH_TYPE");            //NOI18N
    }
    this.matchTypeComboBox = comboBox;
    comboBox.setEditable(false);
    setMatchType(this.matchType); //update match type, check it is supported
    comboBox.setSelectedItem(matchType);
    comboBox.addItemListener(new ItemListener() {
        @Override
        public void itemStateChanged(ItemEvent e) {
            setMatchType((MatchType) comboBox.getSelectedItem());
        }
    });
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * Sets the selected item in connection combo box.
 */
private void setSelectedConnection(){
    DatabaseConnection connection = ProviderUtil.getConnection(persistenceUnit);
    if (connection != null){
        jdbcComboBox.setSelectedItem(connection);
    } else {
        // custom connection (i.e. connection not registered in netbeans)
        Properties props = persistenceUnit.getProperties();
        if (props != null){
            Property[] properties = props.getProperty2();
            String url = null;
            ArrayList<Provider> providers = new ArrayList<Provider>();
            JComboBox activeCB = providerCombo.isVisible() ? providerCombo : libraryComboBox;
            for(int i=0; i<activeCB.getItemCount(); i++){
                Object obj = activeCB.getItemAt(i);
                if(obj instanceof Provider){
                    providers.add((Provider) obj);
                }
            }
            Provider provider = ProviderUtil.getProvider(persistenceUnit, providers.toArray(new Provider[]{}));
            for (int i = 0; i < properties.length; i++) {
                String key = properties[i].getName();
                if (provider.getJdbcUrl().equals(key)) {
                    url = properties[i].getValue();
                    break;
                }
            }
            if (url == null) {
                url = NbBundle.getMessage(PersistenceUnitPanel.class, "LBL_CustomConnection");//NOI18N
            }
            jdbcComboBox.addItem(url);
            jdbcComboBox.setSelectedItem(url);
        }
    }
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public void testComboboxWithDriversOfSameClass() throws Exception {
    removeDrivers();

    String name1 = "foo_driver";
    String name2 = "foo_driver2";

    String displayName1 = "FooDriver";
    String displayName2 = "FooDriver2";

    driver1 = JDBCDriver.create(name1, displayName1, "org.foo.FooDriver", new URL[0]);
    JDBCDriverManager.getDefault().addDriver(driver1);

    driver2 = JDBCDriver.create(name2, displayName2, "org.foo.FooDriver", new URL[0]);
    JDBCDriverManager.getDefault().addDriver(driver2);

    JComboBox combo = new JComboBox();
    DatabaseExplorerInternalUIs.connect(combo, JDBCDriverManager.getDefault());

    assertEquals(3, combo.getItemCount());

    JdbcUrl url = (JdbcUrl)combo.getItemAt(0);
    assertDriversEqual(driver1, url.getDriver());
    assertEquals(driver1.getClassName(), url.getClassName());
    assertEquals(driver1.getDisplayName(), url.getDisplayName());
    assertEquals(driver1.getName(), url.getName());

    url = (JdbcUrl)combo.getItemAt(1);
    assertDriversEqual(driver2, url.getDriver());
    assertEquals(driver2.getClassName(), url.getClassName());
    assertEquals(driver2.getDisplayName(), url.getDisplayName());
    assertEquals(driver2.getName(), url.getName());
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
public void testComboBoxWithDriverClass() throws Exception {
    setUpDrivers();
    JComboBox combo = new JComboBox();
    DatabaseExplorerInternalUIs.connect(combo, JDBCDriverManager.getDefault(), "org.bar.BarDriver");

    assertEquals(1, combo.getItemCount());
    JdbcUrl url = (JdbcUrl)combo.getItemAt(0);
    assertDriversEqual(driver2, url.getDriver());
    assertEquals(driver2.getClassName(), url.getClassName());
    assertEquals(driver2.getDisplayName(), url.getDisplayName());
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
private static <T> int findIndexInCombo(JComboBox<T> combo, T obj)
{
	final int count = combo.getItemCount();
	for( int i = 0; i < count; i++ )
	{
		Object comboObject = combo.getItemAt(i);
		if( Objects.equals(comboObject, obj) )
		{
			return i;
		}
	}
	return -1;
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
/**
 * Verify the contents of the JComboBox.
 *
 * @return True if all is well.
 */
private boolean verifyWholeBox(JComboBox<Integer> box) {
    final int n = box.getItemCount();
    for (int i = 0; i < n; i++) {
        Integer v = box.getItemAt(i);
        if (v < 0 || v > available) return false;
    }
    return true;
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
static <Option> void setSelected(JComboBox<Option> combo, Object value) {
	for (int i = combo.getItemCount() - 1; i >= 0; i--) {
		PrefOption opt = (PrefOption) combo.getItemAt(i);
		if (opt.getValue().equals(value)) {
			combo.setSelectedItem(opt);
			return;
		}
	}
	combo.setSelectedItem(combo.getItemAt(0));
}
 

import javax.swing.JComboBox; //导入方法依赖的package包/类
static void setSelected(JComboBox<?> combo, Object value) {
	for (int i = combo.getItemCount() - 1; i >= 0; i--) {
		ComboOption opt = (ComboOption) combo.getItemAt(i);
		if (opt.getValue().equals(value)) {
			combo.setSelectedItem(opt);
			return;
		}
	}
	combo.setSelectedItem(combo.getItemAt(0));
}