/* (swing1.1.1) */package jp.gr.java_conf.tame.swing.table;import java.util.*;import java.awt.*;import javax.swing.*;import javax.swing.table.*;import javax.swing.event.*;/** * @version 1.0 08/21/99 */public class EditableHeader extends JTableHeader                         implements CellEditorListener {  public final int HEADER_ROW = -10;  transient protected int editingColumn;  transient protected TableCellEditor cellEditor;  transient protected Component       editorComp;  public EditableHeader(TableColumnModel columnModel) {    super(columnModel);    setReorderingAllowed(false);    cellEditor = null;    recreateTableColumn(columnModel);  }    public void updateUI(){    setUI(new EditableHeaderUI());    resizeAndRepaint();    invalidate();  }    protected void recreateTableColumn(TableColumnModel columnModel) {    int n = columnModel.getColumnCount();    EditableHeaderTableColumn[] newCols = new EditableHeaderTableColumn[n];    TableColumn[] oldCols = new TableColumn[n];    for (int i=0;i<n;i++) {      oldCols[i] = columnModel.getColumn(i);      newCols[i] = new EditableHeaderTableColumn();      newCols[i].copyValues(oldCols[i]);    }    for (int i=0;i<n;i++) {      columnModel.removeColumn(oldCols[i]);    }    for (int i=0;i<n;i++) {      columnModel.addColumn(newCols[i]);    }  }  public boolean editCellAt(int index){    return editCellAt(index);  }    public boolean editCellAt(int index, EventObject e){    if (cellEditor != null && !cellEditor.stopCellEditing()) {       return false;    }    if (!isCellEditable(index)) {      return false;    }        TableCellEditor editor = getCellEditor(index);        if (editor != null && editor.isCellEditable(e)) {      editorComp = prepareEditor(editor, index);      editorComp.setBounds(getHeaderRect(index));      add(editorComp);      editorComp.validate();      setCellEditor(editor);      setEditingColumn(index);      editor.addCellEditorListener(this);      return true;    }        return false;  }    public boolean isCellEditable(int index) {    if (getReorderingAllowed()) {      return false;    }    int columnIndex = columnModel.getColumn(index).getModelIndex();    EditableHeaderTableColumn col = (EditableHeaderTableColumn)columnModel.getColumn(columnIndex);    return col.isHeaderEditable();  }    public TableCellEditor getCellEditor(int index) {    int columnIndex = columnModel.getColumn(index).getModelIndex();    EditableHeaderTableColumn col = (EditableHeaderTableColumn)columnModel.getColumn(columnIndex);    return col.getHeaderEditor();  }    public void setCellEditor(TableCellEditor newEditor) {    TableCellEditor oldEditor = cellEditor;    cellEditor = newEditor;        // firePropertyChange        if (oldEditor != null && oldEditor instanceof TableCellEditor) {      ((TableCellEditor)oldEditor).removeCellEditorListener((CellEditorListener)this);    }    if (newEditor != null && newEditor instanceof TableCellEditor) {      ((TableCellEditor)newEditor).addCellEditorListener((CellEditorListener)this);    }  }  public Component prepareEditor(TableCellEditor editor, int index) {    Object       value = columnModel.getColumn(index).getHeaderValue();    boolean isSelected = true;    int            row = HEADER_ROW;    JTable       table = getTable();    Component comp = editor.getTableCellEditorComponent(table,                       value, isSelected, row, index);    if (comp instanceof JComponent) {             ((JComponent)comp).setNextFocusableComponent(this);                 }    return comp;  }    public TableCellEditor getCellEditor() {    return cellEditor;  }    public Component getEditorComponent() {    return editorComp;  }    public void setEditingColumn(int aColumn) {    editingColumn = aColumn;  }    public int getEditingColumn() {    return editingColumn;  }    public void removeEditor() {    TableCellEditor editor = getCellEditor();    if (editor != null) {      editor.removeCellEditorListener(this);      requestFocus();      remove(editorComp);            int index = getEditingColumn();      Rectangle cellRect = getHeaderRect(index);      setCellEditor(null);      setEditingColumn(-1);      editorComp = null;      repaint(cellRect);    }  }    public boolean isEditing() {    return (cellEditor == null)? false : true;  }    //  // CellEditorListener  //  public void editingStopped(ChangeEvent e) {    TableCellEditor editor = getCellEditor();    if (editor != null) {      Object value = editor.getCellEditorValue();      int index = getEditingColumn();      columnModel.getColumn(index).setHeaderValue(value);      removeEditor();    }  }  public void editingCanceled(ChangeEvent e) {    removeEditor();  }      //  // public void setReorderingAllowed(boolean b) {  //   reorderingAllowed = false;  // }}