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/jEdit/tags/jedit-4-3-pre5/org/gjt/sp/jedit/gui/PasteFromListDialog.java

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Java | 262 lines | 179 code | 36 blank | 47 comment | 27 complexity | e32588e089b06dcf378bb21f5bcaf21e MD5 | raw file
  1/*
  2 * PasteFromListDialog.java - Paste previous/paste deleted dialog
  3 * :tabSize=8:indentSize=8:noTabs=false:
  4 * :folding=explicit:collapseFolds=1:
  5 *
  6 * Copyright (C) 2003, 2005 Slava Pestov
  7 *
  8 * This program is free software; you can redistribute it and/or
  9 * modify it under the terms of the GNU General Public License
 10 * as published by the Free Software Foundation; either version 2
 11 * of the License, or any later version.
 12 *
 13 * This program is distributed in the hope that it will be useful,
 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16 * GNU General Public License for more details.
 17 *
 18 * You should have received a copy of the GNU General Public License
 19 * along with this program; if not, write to the Free Software
 20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 21 */
 22
 23package org.gjt.sp.jedit.gui;
 24
 25//{{{ Imports
 26import javax.swing.*;
 27import javax.swing.border.*;
 28import javax.swing.event.*;
 29import java.awt.*;
 30import java.awt.event.*;
 31import org.gjt.sp.jedit.*;
 32//}}}
 33
 34public class PasteFromListDialog extends EnhancedDialog
 35{
 36	//{{{ PasteFromListDialog constructor
 37	public PasteFromListDialog(String name, View view, MutableListModel model)
 38	{
 39		super(view,jEdit.getProperty(name + ".title"),true);
 40		this.view = view;
 41		this.listModel = model;
 42
 43		JPanel content = new JPanel(new BorderLayout());
 44		content.setBorder(new EmptyBorder(12,12,12,12));
 45		setContentPane(content);
 46		JPanel center = new JPanel(new GridLayout(2,1,2,12));
 47
 48		clips = new JList(model);
 49		clips.setCellRenderer(new Renderer());
 50		clips.setVisibleRowCount(12);
 51
 52		clips.addMouseListener(new MouseHandler());
 53		clips.addListSelectionListener(new ListHandler());
 54
 55		insert = new JButton(jEdit.getProperty("common.insert"));
 56		cancel = new JButton(jEdit.getProperty("common.cancel"));
 57
 58		JLabel label = new JLabel(jEdit.getProperty(name + ".caption"));
 59		label.setBorder(new EmptyBorder(0,0,6,0));
 60		content.add(BorderLayout.NORTH,label);
 61
 62		JScrollPane scroller = new JScrollPane(clips);
 63		scroller.setPreferredSize(new Dimension(500,150));
 64		center.add(scroller);
 65
 66		clipText = new JTextArea();
 67		clipText.setEditable(false);
 68		scroller = new JScrollPane(clipText);
 69		scroller.setPreferredSize(new Dimension(500,150));
 70		center.add(scroller);
 71
 72		content.add(center, BorderLayout.CENTER);
 73
 74		JPanel panel = new JPanel();
 75		panel.setLayout(new BoxLayout(panel,BoxLayout.X_AXIS));
 76		panel.setBorder(new EmptyBorder(12,0,0,0));
 77		panel.add(Box.createGlue());
 78		panel.add(insert);
 79		panel.add(Box.createHorizontalStrut(6));
 80		panel.add(cancel);
 81		panel.add(Box.createGlue());
 82		content.add(panel, BorderLayout.SOUTH);
 83
 84		if(model.getSize() >= 1)
 85			clips.setSelectedIndex(0);
 86		updateButtons();
 87
 88		getRootPane().setDefaultButton(insert);
 89		insert.addActionListener(new ActionHandler());
 90		cancel.addActionListener(new ActionHandler());
 91
 92		GUIUtilities.requestFocus(this,clips);
 93
 94		pack();
 95		setLocationRelativeTo(view);
 96		setVisible(true);
 97	} //}}}
 98
 99	//{{{ ok() method
100	public void ok()
101	{
102		Object[] selected = clips.getSelectedValues();
103		if(selected == null || selected.length == 0)
104		{
105			getToolkit().beep();
106			return;
107		}
108
109		String text = getSelectedClipText();
110
111		/**
112		 * For each selected clip, we remove it, then add it back
113		 * to the model. This has the effect of moving it to the
114		 * top of the list.
115		 */
116		for(int i = 0; i < selected.length; i++)
117		{
118			listModel.removeElement(selected[i]);
119			listModel.insertElementAt(selected[i],0);
120		}
121
122		view.getTextArea().setSelectedText(text);
123
124		dispose();
125	} //}}}
126
127	//{{{ cancel() method
128	public void cancel()
129	{
130		dispose();
131	} //}}}
132
133	//{{{ Private members
134
135	//{{{ Instance variables
136	private View view;
137	private MutableListModel listModel;
138	private JList clips;
139	private JTextArea clipText;
140	private JButton insert;
141	private JButton cancel;
142	//}}}
143
144	//{{{ getSelectedClipText()
145	private String getSelectedClipText()
146	{
147		Object[] selected = clips.getSelectedValues();
148		StringBuffer clip = new StringBuffer();
149		for(int i = 0; i < selected.length; i++)
150		{
151			if(i != 0)
152				clip.append('\n');
153			clip.append(selected[i]);
154		}
155		return clip.toString();
156	}
157	//}}}
158
159	//{{{ updateButtons() method
160	private void updateButtons()
161	{
162		int selected = clips.getSelectedIndex();
163		insert.setEnabled(selected != -1);
164	} //}}}
165
166	//{{{ showClipText() method
167	private void showClipText()
168	{
169		Object[] selected = clips.getSelectedValues();
170		if(selected == null || selected.length == 0)
171			clipText.setText("");
172		else
173			clipText.setText(getSelectedClipText());
174		clipText.setCaretPosition(0);
175	}
176	//}}}
177
178	//}}}
179
180	//{{{ Renderer class
181	class Renderer extends DefaultListCellRenderer
182	{
183		String shorten(String item)
184		{
185			StringBuffer buf = new StringBuffer();
186			// workaround for Swing rendering labels starting
187			// with <html> using the HTML engine
188			if(item.toLowerCase().startsWith("<html>"))
189				buf.append(' ');
190			boolean ws = true;
191			for(int i = 0; i < item.length(); i++)
192			{
193				char ch = item.charAt(i);
194				if(Character.isWhitespace(ch))
195				{
196					if(ws)
197						/* do nothing */;
198					else
199					{
200						buf.append(' ');
201						ws = true;
202					}
203				}
204				else
205				{
206					ws = false;
207					buf.append(ch);
208				}
209			}
210
211			if(buf.length() == 0)
212				return jEdit.getProperty("paste-from-list.whitespace");
213			return buf.toString();
214		}
215
216		public Component getListCellRendererComponent(
217			JList list, Object value, int index,
218			boolean isSelected, boolean cellHasFocus)
219		{
220			super.getListCellRendererComponent(list,value,index,
221				isSelected,cellHasFocus);
222
223			setText(shorten(value.toString()));
224
225			return this;
226		}
227	} //}}}
228
229	//{{{ ActionHandler class
230	class ActionHandler implements ActionListener
231	{
232		public void actionPerformed(ActionEvent evt)
233		{
234			Object source = evt.getSource();
235			if(source == insert)
236				ok();
237			else if(source == cancel)
238				cancel();
239		}
240	} //}}}
241
242	//{{{ ListHandler class
243	class ListHandler implements ListSelectionListener
244	{
245		//{{{ valueChanged() method
246		public void valueChanged(ListSelectionEvent evt)
247		{
248			showClipText();
249			updateButtons();
250		} //}}}
251	} //}}}
252
253	//{{{ MouseHandler class
254	class MouseHandler extends MouseAdapter
255	{
256		public void mouseClicked(MouseEvent evt)
257		{
258			if(evt.getClickCount() == 2)
259				ok();
260		}
261	} //}}}
262}