editor.java

这是一个用java和xml编写的流媒体服务器管理软件

    };

    popupMenu.add(action);

    popupMenu.addSeparator();

    action = new AbstractAction("Edit")
    {
      public void actionPerformed(ActionEvent e)
      {
        if (!showUserColumns.isSelected() &&!showAdminColumns.isSelected())
        {
          JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                  "Select \"Show user data\" and/or \"Show admin data\" to edit an account.");
        }
        else
        {
          TaskEdit task = new TaskEdit(Editor.this);

          task.start();
        }
      }

    };

    popupMenu.add(action);

    action = new AbstractAction("Delete")
    {
      public void actionPerformed(ActionEvent e)
      {
        TaskDelete task = new TaskDelete(Editor.this);

        task.start();
      }

    };

    popupMenu.add(action);

    action = new AbstractAction("New")
    {
      public void actionPerformed(ActionEvent e)
      {
        if (userPanel == null)
        {
          return;
        }
        
        if (!showUserColumns.isSelected() &&!showAdminColumns.isSelected())
        {
          JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                  "Select \"Show user data\" and/or \"Show admin data\" to create a new account.");

          return;
        }
        
        
        userPanel.setMode(UserPanel.ADD_NEW_MODE);
        
        // Load the "default" values into the new user screen
        Vector dummyUser = data.getDummyUser();
        
        userPanel.setUserData(dummyUser);
        
        showUserEditorDialog();
        
        if (userPanel.getLastButtonClicked() == UserPanel.BUTTON_OK)
        {
          Vector newData = userPanel.getUserData();
          String newUsername = (String) newData.elementAt(data.USER_NAME);
          if (newUsername == null) //they didn't change the name so it must still be the default
          {
            newUsername = (String)dummyUser.elementAt(UserTableModel.USER_NAME);
          }

          // Check if another user with the same name exists already
          if (data.userExists(newUsername))
          {
            JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                    "The user named " + newUsername
                    + " already exists. New user not created.");

            return;
          }

          // Now still need to find out if there is an alias with that name:
          if (data.aliasExists(newUsername))
          {
            JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                    "An alias named " + newUsername
                    + " already exists. New user not created.");

            return;
          }

          data.addUser(dummyUser);

          int userRow = data.getRowCount() - 1;

          for (int i = 0; i <= UserTableModel.MAX_COLUMN_ID; i++)
          {
            String dataElement = (String) newData.elementAt(i);

            if (dataElement != null)
            {
              try
              {
                data.setValueAt(dataElement, userRow, i);
              }
              catch (Exception ex)
              {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                        "Could not set value " + i + " for user "
                        + data.getValueAt(userRow, UserTableModel.USER_NAME)
                        + " because:\n\n " + ex);
              }
            }
          }

          data.fireTableDataChanged();

          try
          {
            data.writeBackUserAt(userRow, true, true);
          }
          catch (Exception ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(Editor.this.getTopLevelAncestor(),
                    "Could not save data for user "
                    + data.getValueAt(userRow, UserTableModel.USER_NAME)
                    + " because:\n\n " + ex);
          }

          // After the new user has been added, sort the main table
          data.sortByUserName();
          data.fireTableDataChanged();
        }
      }
      
    };

    popupMenu.add(action);

    RowSelectionListener listener = new RowSelectionListener();

    table.addMouseListener(listener);
    scroller.addMouseListener(listener);
  }


  private class RowSelectionListener extends MouseAdapter
  {
    public void mouseReleased(MouseEvent e)
    {
      if ((e.getModifiers() & InputEvent.BUTTON3_MASK)
          == InputEvent.BUTTON3_MASK)
      {

        // This is still not right. Needs more work. The problem is that the
        // e.getx method does not return the correct value once the table has
        // been scrolled.
        int width = Editor.this.getWidth();
        int modx = e.getX() % width;

        int height = Editor.this.getHeight();
        int mody = e.getY() % height;

        popupMenu.show(Editor.this, modx, mody);
      }
    }

  }

  private class ColumnModelListener implements ActionListener
  {
    private Vector removedUserColumns = new Vector();
    private Vector removedAdminColumns = new Vector();

    public void actionPerformed(ActionEvent e)
    {
      TableColumnModel columnModel = table.getColumnModel();
      JCheckBox source = (JCheckBox) e.getSource();

      if (source == showAdminColumns)
      {

        // The panel where users are edited may have not been created if one of
        // the system configuration files was missing from the pserver
        if (userPanel != null)
        {
          userPanel.setShowAdmin(source.isSelected());
        }

        if (source.isSelected())        // add columns
        {
          int max = removedAdminColumns.size();

          for (int i = 0; i < max; i++)
          {
            ColumnInfo column = (ColumnInfo) removedAdminColumns.elementAt(0);

            removedAdminColumns.remove(0);
            columnModel.addColumn(column);

            if (columnModel.getColumnCount() - 1 > column.getPosition())
            {
              columnModel.moveColumn(columnModel.getColumnCount() - 1,
                      column.getPosition());
            }
          }
        }
        else                            // remove columns
        {
          for (int i = 0; i < data.getColumns().length; i++)
          {
            ColumnInfo column = data.getColumns()[i];

            if (data.getAdminColumnIndices().contains(new Integer(column.getPosition())))
            {
              Enumeration columnsInModel = columnModel.getColumns();

              while (columnsInModel.hasMoreElements())
              {
                Object columnInModel = columnsInModel.nextElement();

                if (columnInModel.equals(column))
                {
                  columnModel.removeColumn(column);
                  removedAdminColumns.add(column);
                }                       // end if model contains column
              }                         // end while
            }
          }
        }
      }                                 // end source = admin
      else if (source == showUserColumns)
      {
        if (userPanel != null)
        {
          userPanel.setShowUser(source.isSelected());
        }

        if (source.isSelected())        // add columns
        {
          int max = removedUserColumns.size();

          for (int i = 0; i < max; i++)
          {
            ColumnInfo column = (ColumnInfo) removedUserColumns.elementAt(0);

            removedUserColumns.remove(0);
            columnModel.addColumn(column);

            if (columnModel.getColumnCount() - 1 > column.getPosition())
            {
              columnModel.moveColumn(columnModel.getColumnCount() - 1,
                      column.getPosition());
            }
          }
        }                               // end if add columns
        else                            // remove columns
        {
          for (int i = 0; i < data.getColumns().length; i++)
          {
            ColumnInfo column = data.getColumns()[i];

            // if this is a user column
            if (data.getUserColumnIndices().contains(new Integer(column.getPosition())))
            {
              Enumeration columnsInModel = columnModel.getColumns();

              while (columnsInModel.hasMoreElements())
              {
                Object columnInModel = columnsInModel.nextElement();

                if (columnInModel.equals(column))
                {
                  columnModel.removeColumn(column);
                  removedUserColumns.add(column);
                }                       // end if model contains column
              }                         // end while
            }                           // end if this is a user column
          }                             // end for all columns
        }                               // end remove user columns
      }
    }                                   // end method actionPerformed

  }

  public void return_login()
  {
	//adminDialog = new 
	  AdministrativeLoginPanel.adminDialog.setVisible(false);
  }
  private void createButtons()
  {
    showAdminColumns = new JCheckBox("Show admin data");

    showAdminColumns.setSelected(true);
    showAdminColumns.addActionListener(columnListener);

    showUserColumns = new JCheckBox("Show user data");

    showUserColumns.setSelected(false);
    showUserColumns.addActionListener(columnListener);
    
    /*
    JButton loadAll = new JButton("Load all users");

    loadAll.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        loadAllUsers();
      }

    });
    */
    showAliases = new JCheckBox("Show aliases");

    showAliases.setSelected(false);
    showAliases.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        if (showAliases.isSelected())
        {
          data.showAliases(true);
        }
        else
        {
          data.showAliases(false);
        }
      }

    });

    showAllUsers = new JCheckBox("Load all users");
    showAllUsers.setSelected(false);
    showAllUsers.addActionListener(new ActionListener()
    {
        public void actionPerformed(ActionEvent e)
        {
          if (showAllUsers.isSelected())
          {
          	loadAllUsers();
          }       
          
        }

      });
    

    // layout the buttons in the panel
    JPanel panel = new JPanel();

    panel.setLayout(new BoxLayout(panel, BoxLayout.X_AXIS));    
    panel.add(showAliases);
    panel.add(showAdminColumns);
    panel.add(showUserColumns);
    panel.add(showAllUsers);
    //panel.add(loadAll);
    //panel.add(find);
    panel.add(Box.createHorizontalGlue());
    add(panel, BorderLayout.NORTH);
    
    
    panelb.setLayout(new BoxLayout(panelb, BoxLayout.X_AXIS));
    
    JButton find = new JButton("Find");

    find.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        findDialog.setVisible(true);
      }