/* * BufferSwitcher.java - Status bar * Copyright (C) 2000 Slava Pestov * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */package org.gjt.sp.jedit.gui;import javax.swing.*;import java.awt.event.*;import java.awt.*;import org.gjt.sp.jedit.*;public class BufferSwitcher extends JComboBox{	public BufferSwitcher(EditPane editPane)	{		this.editPane = editPane;		//setFont(new Font("Dialog",Font.BOLD,10));		setRenderer(new BufferCellRenderer());		setMaximumRowCount(jEdit.getIntegerProperty("bufferSwitcher.maxRowCount",10));		addActionListener(new ActionHandler());	}	public void updateBufferList()	{		// if the buffer count becomes 0, then it is guaranteed to		// become 1 very soon, so don't do anything in that case.		if(jEdit.getBufferCount() == 0)			return;		updating = true;		setMaximumRowCount(jEdit.getIntegerProperty("bufferSwitcher.maxRowCount",10));		setModel(new DefaultComboBoxModel(jEdit.getBuffers()));		setSelectedItem(editPane.getBuffer());		updating = false;	}	// private members	private EditPane editPane;	private boolean updating;	class ActionHandler implements ActionListener	{		public void actionPerformed(ActionEvent evt)		{			if(!updating)			{				Buffer buffer = (Buffer)getSelectedItem();				if(buffer != null)					editPane.setBuffer(buffer);			}		}	}	class BufferCellRenderer extends DefaultListCellRenderer	{		public Component getListCellRendererComponent(			JList list, Object value, int index,			boolean isSelected, boolean cellHasFocus)		{			super.getListCellRendererComponent(list,value,index,				isSelected,cellHasFocus);			Buffer buffer = (Buffer)value;			if(buffer == null)				setIcon(null);			else				setIcon(buffer.getIcon());			return this;		}	}}