package checkbox;
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import javax.swing.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.util.ArrayList;
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public class ManyCheckComboBox extends JComboBox implements ActionListener {
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public ManyCheckComboBox() {
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addItem(new CheckValue(false, "È«Ñ¡"));
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this.addActionListener(
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new ActionListener() {
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public void actionPerformed(ActionEvent ae) {
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itemSelected();
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}
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});
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}
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private void itemSelected() {
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if (getSelectedItem() instanceof CheckValue) {
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if (getSelectedIndex() == 0) {
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selectedAllItem();
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} else {
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CheckValue jcb = (CheckValue) getSelectedItem();
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jcb.bolValue = (!jcb.bolValue);
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setSelectedIndex(getSelectedIndex());
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}
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SwingUtilities.invokeLater(
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new Runnable() {
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public void run() {
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/*Ñ¡ÖкóÒÀÈ»±£³Öµ±Ç°µ¯³ö״̬*/
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showPopup();
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}
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});
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}
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}
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private void selectedAllItem() {
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boolean bl = false;
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for (int i = 0; i < getItemCount(); i++) {
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CheckValue jcb = (CheckValue) getItemAt(i);
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if (i == 0) {
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bl = !jcb.bolValue;
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}
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jcb.bolValue = (bl);
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}
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setSelectedIndex(0);
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}
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/*»ñÈ¡Ñ¡È¡µÄ¶ÔÏó*/
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public ArrayList getSelectItemValues() {
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ArrayList arrayList = new ArrayList();
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for (int i = 1; i < getItemCount(); i++) {
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CheckValue jcb = (CheckValue) getItemAt(i);
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if (jcb.bolValue) {
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arrayList.add(jcb.value);
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}
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}
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return arrayList;
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}
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}
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