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Widgets graphiques utiles pour tous les développements.
/* *##%
* Copyright (C) 2009 Code Lutin
*
* 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 (at your option) 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.nuiton.widget.editor;
import java.awt.BorderLayout;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import javax.swing.JPanel;
import javax.swing.event.CaretListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuiton.util.FileUtil;
import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
import org.fife.ui.rsyntaxtextarea.SyntaxConstants;
import org.fife.ui.rtextarea.RTextScrollPane;
/**
* RSyntaxTextArea editor implementation.
*
* @author chatellier
* @version $Revision: 1.0 $
*
* Last update : $Date: 15 mai 2009 $
* By : $Author: chatellier $
*/
public class RSyntaxEditor extends JPanel implements EditorInterface, DocumentListener {
/** serialVersionUID. */
private static final long serialVersionUID = 5880160718377536089L;
/** to use log facility, just put in your code: log.info(\"...\"); */
private static Log log = LogFactory.getLog(RSyntaxEditor.class);
protected RSyntaxTextArea editor;
protected boolean isModified = false;
public RSyntaxEditor() {
editor = new RSyntaxTextArea();
RTextScrollPane sp = new RTextScrollPane(editor);
setLayout(new BorderLayout());
add(sp, BorderLayout.CENTER);
}
@Override
public boolean accept(File file) {
String ext = FileUtil.extension(file);
boolean result = "java".equalsIgnoreCase(ext);
result = result || "xml".equalsIgnoreCase(ext);
result = result || "sql".equalsIgnoreCase(ext);
result = result || "r".equalsIgnoreCase(ext);
return result;
}
/*
* @see org.nuiton.widget.editor.DefaultEditor#open(java.io.File)
*/
@Override
public boolean open(File file) {
try {
editor.getDocument().removeDocumentListener(this);
Reader in = new BufferedReader(new FileReader(file));
// editor.read(in, file);
// String text = editor.getText();
String text = "";
char c;
int last = 0;
while ((last = in.read()) != -1) {
c = (char) last;
// on peut avoir \r\n (windows) \r (macos) \n (unix)
if ('\r' == c) { // pour windows et macos on remplace par \n
in.mark(1);
last = in.read();
if (last != -1) {
if ('\n' != (char) last) {
// on a seulement \r on remet le dernier caractere
// lu
in.reset();
}
// dans tous les cas \r ou \r\n on remplace par \n
c = '\n';
}
}
text += c;
}
String ext = FileUtil.extension(file);
if ("java".equalsIgnoreCase(ext)) {
editor.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_JAVA);
} else if ("xml".equalsIgnoreCase(ext)) {
editor.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_XML);
} else if ("sql".equalsIgnoreCase(ext)) {
editor.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_SQL);
} else if ("r".equalsIgnoreCase(ext)) {
editor.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_PERL);
}
editor.setText(text);
editor.setCaretPosition(0);
editor.getDocument().addDocumentListener(this);
isModified = false;
return true;
} catch (FileNotFoundException eee) {
if (log.isWarnEnabled()) {
log.warn("Can't find file: " + file, eee);
}
} catch (IOException eee) {
if (log.isWarnEnabled()) {
log.warn("Can't open file: " + file, eee);
}
}
return false;
}
/*
* @see org.nuiton.widget.editor.EditorInterface#addDocumentListener(javax.swing.event.DocumentListener)
*/
@Override
public void addDocumentListener(DocumentListener listener) {
editor.getDocument().addDocumentListener(listener);
}
/*
* @see org.nuiton.widget.editor.EditorInterface#removeDocumentListener(javax.swing.event.DocumentListener)
*/
@Override
public void removeDocumentListener(DocumentListener listener) {
editor.getDocument().removeDocumentListener(listener);
}
/*
* @see org.nuiton.widget.editor.EditorInterface#addCaretListener(javax.swing.event.CaretListener)
*/
@Override
public void addCaretListener(CaretListener listener) {
editor.addCaretListener(listener);
}
/*
* @see org.nuiton.widget.editor.EditorInterface#removeCaretListener(javax.swing.event.CaretListener)
*/
@Override
public void removeCaretListener(CaretListener listener) {
editor.removeCaretListener(listener);
}
/*
* @see org.nuiton.widget.editor.EditorInterface#getText()
*/
@Override
public String getText() {
String result = editor.getText();
return result;
}
/*
* @see org.nuiton.widget.editor.EditorInterface#isModified()
*/
@Override
public boolean isModified() {
return isModified;
}
/*
* @see org.nuiton.widget.editor.EditorInterface#saveAs(java.io.File)
*/
@Override
public boolean saveAs(File file) {
Writer out = null;
try {
FileOutputStream outf = new FileOutputStream(file);
out = new OutputStreamWriter(outf, "utf-8");
editor.write(out);
isModified = false;
return true;
} catch (IOException eee) {
if (log.isWarnEnabled()) {
log.warn("Can't save file", eee);
}
}
finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
if (log.isWarnEnabled()) {
log.warn("Can't save file", e);
}
}
}
}
return false;
}
/*
* @see org.nuiton.widget.editor.EditorInterface#setText(java.lang.String)
*/
@Override
public void setText(String text) {
editor.setText(text);
}
/*
* @see javax.swing.JComponent#setEnabled(boolean)
*/
@Override
public void setEnabled(boolean b) {
super.setEnabled(b);
editor.setEnabled(b);
}
/*
* @see javax.swing.event.DocumentListener#changedUpdate(javax.swing.event.DocumentEvent)
*/
@Override
public void changedUpdate(DocumentEvent e) {
isModified = true;
}
/*
* @see javax.swing.event.DocumentListener#insertUpdate(javax.swing.event.DocumentEvent)
*/
@Override
public void insertUpdate(DocumentEvent e) {
isModified = true;
}
/*
* @see javax.swing.event.DocumentListener#removeUpdate(javax.swing.event.DocumentEvent)
*/
@Override
public void removeUpdate(DocumentEvent e) {
isModified = true;
}
/*
* @see org.nuiton.widget.editor.EditorInterface#copy()
*/
@Override
public void copy() {
editor.copy();
}
/*
* @see org.nuiton.widget.editor.EditorInterface#cut()
*/
@Override
public void cut() {
editor.cut();
}
/*
* @see org.nuiton.widget.editor.EditorInterface#paste()
*/
@Override
public void paste() {
editor.paste();
}
}