我正在搜索，但我找不到问题。我有一个带有自定义 JComboBox 的 JXTreeTable，当我更改所选项目时，我希望 JXTreeTable 的该行中的其他内容也发生更改，但是当它失去焦点时它只会更改。我已经尝试过使用不同的侦听器，包括 FocusListener。没有任何成功。
首先是 JXTree-Table 中调用方法的部分。
((BestellCustomComboCellEditor)getColumnModel().getColumn(4).getCellEditor()).getJComboBox().addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent g) {
System.out.println("TreeTableBestelllisteErstellung - addActionListener");
final int rowIndex = getSelectedRow();
if (rowIndex < 0)
return;
final Node selectedNode = getSelectedNode();
if (selectedNode instanceof BestelllistenpositionErstellungNode) {
BestelllistenpositionErstellungNode BestelllistenpositionErstellungNode1 = (BestelllistenpositionErstellungNode)selectedNode;
int Kundennummer = ((ComboBoxItem)(((CustomComboCellEditor)getColumnModel().getColumn(1)
.getCellEditor()).getJComboBox()).getSelectedItem()).id;
setProduktComboBox(Kundennummer);
((BestellCustomComboCellEditor)getColumnModel().getColumn(4)
.getCellEditor()).setJComboBox(produktComboBox);
erstelleOderAendereBestelllistenpositionErstellungNode(
BestelllistenpositionErstellungNode1,
BestelllisteTree, "Produkt");
}
try {
setRowSelectionInterval(getSelectedRow(), getSelectedRow());
}
catch (Exception e) {
}
}
});
这是我的 JComboBoxCellEditor
public class BestellCustomComboCellEditor extends AbstractCellEditor
implements TableCellEditor,
ActionListener {
private static final long serialVersionUID = 1L;
NumberFormat integerFormat;
private WiderDropDownCombo jComboBox1;
private Object [] comboBoxValues;
private TreeMap<Integer, TreeMap<Integer, ProduktTree>> treeProdukteVonAlleKunden;
private TreeMap<Integer, Verpackung> treeVerpackung;
private String LEERGUT;
private String PALETTEN;
public BestellCustomComboCellEditor(TreeMap<Integer, TreeMap<Integer, ProduktTree>> treeProdukteVonAlleKunden,
TreeMap<Integer, Verpackung> treeVerpackung, String LEERGUT, String PALETTEN) {
this.treeProdukteVonAlleKunden=treeProdukteVonAlleKunden;
this.treeVerpackung=treeVerpackung;
this.LEERGUT=LEERGUT;
this.PALETTEN=PALETTEN;
System.out.println("BestellCustomComboCellEditor - comboBoxValues");
comboBoxValues=new SortTreeMapValues().getSortedProduktLeergutArray (treeProdukteVonAlleKunden.get(
treeProdukteVonAlleKunden.firstKey()),
treeVerpackung,LEERGUT,PALETTEN);
jComboBox1 = new WiderDropDownCombo(comboBoxValues);
jComboBox1.setBackground(Color.WHITE);
jComboBox1.setBorder(new EmptyBorder(0, 0,0,0));
}
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected,
int row, int column) {
if (table instanceof JXTreeTable) {
JXTreeTable jxtable = (JXTreeTable) table;
System.out.println("BestellCustomComboCellEditor - getTableCellEditorComponent");
TreePath path = jxtable.getPathForRow(row);
Object node = path.getLastPathComponent();
if((column==4)&&isSelected&&row!=-1) {
System.out.println("BestellCustomComboCellEditor - column==4)&&isSelected&&row!=-1");
if (node instanceof BestelllistenpositionErstellungNode) {
BestelllistenpositionErstellungNode
BestelllistenpositionErstellungNode1 = ((BestelllistenpositionErstellungNode)node);
if(treeProdukteVonAlleKunden.get(BestelllistenpositionErstellungNode1.getKundennummer()).size()>0) {
comboBoxValues=new SortTreeMapValues().getSortedProduktLeergutArray (treeProdukteVonAlleKunden.get(
BestelllistenpositionErstellungNode1.getKundennummer()),
treeVerpackung,LEERGUT,PALETTEN);
jComboBox1 = new WiderDropDownCombo(comboBoxValues);
jComboBox1.setBackground(Color.WHITE);
jComboBox1.setBorder(new EmptyBorder(0, 0,0,0));
for(int i=0; i<jComboBox1.getItemCount(); i++) {
if(((ComboBoxBigItem)jComboBox1.getItemAt(i)).getProduktnummer()==BestelllistenpositionErstellungNode1.getProduktnummer()) {
jComboBox1.setSelectedIndex(i);
}
}
jComboBox1.setMaximumRowCount(7);
jComboBox1.updateUI();
return jComboBox1;
}
}
}
}
return null;
}
public Object getCellEditorValue() {
return jComboBox1.getSelectedItem();
}
public void actionPerformed(ActionEvent arg0) {
}
public WiderDropDownCombo getJComboBox() {
return jComboBox1;
}
public void setJComboBox(WiderDropDownCombo WiderDropDownCombo ) {
jComboBox1 = WiderDropDownCombo ;
}}
这里是我的自定义 JComboBox
private static final long serialVersionUID = 1L;
private String type;
private boolean layingOut = false;
private int widestLengh = 0;
private boolean wide = false;
@SuppressWarnings("unchecked")
public WiderDropDownCombo( Object[] objs ) {
super( objs );
Object popup = getUI().getAccessibleChild(this, 0);
Component c = ((Container) popup).getComponent(0);
if (c instanceof JScrollPane)
{
JScrollPane scrollpane = (JScrollPane) c;
JScrollBar scrollBar = scrollpane.getVerticalScrollBar();
Dimension scrollBarDim = new Dimension(30, scrollBar
.getPreferredSize().height);
scrollBar.setPreferredSize(scrollBarDim);
}
setRenderer(new HighRowRenderer(this.getRenderer(),1));
setMaximumRowCount(7);
setBackground(Color.WHITE);
setBorder(null);
} // end of constructor WiderDropDownCombo( Object[] objs )
public boolean isWide() {
return wide;
}
//Setting the JComboBox wide
public void setWide(boolean wide) {
this.wide = wide;
widestLengh = getWidestItemWidth();
}
public Dimension getSize(){
Dimension dim = super.getSize();
if(!layingOut && isWide())
dim.width = Math.max( widestLengh, dim.width );
Object popup = WiderDropDownCombo.this.getUI().getAccessibleChild(this, 0);
Component c = ((Container) popup).getComponent(0);
if (c instanceof JScrollPane)
{
JScrollPane scrollpane = (JScrollPane) c;
JScrollBar scrollBar = scrollpane.getVerticalScrollBar();
Dimension scrollBarDim = new Dimension(30, scrollBar
.getPreferredSize().height);
scrollBar.setPreferredSize(scrollBarDim);
}
return dim;
}
public int getWidestItemWidth()
{
int numOfItems = this.getItemCount();
Font font = this.getFont();
FontMetrics metrics = this.getFontMetrics( font );
int widest = 0;
for ( int i = 0; i < numOfItems; i++ )
{
Object item = this.getItemAt( i );
int lineWidth = metrics.stringWidth( item.toString() );
widest = Math.max( widest, lineWidth );
}
return widest + 5;
}
public void doLayout(){
try{
layingOut = true;
super.doLayout();
}finally{
layingOut = false;
}
}
public String getType() {
return type;
}
public void setType( String t ) {
type = t;
}}