/*
* Copyright 2008 Ayman Al-Sairafi ayman.alsairafi@gmail.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License
* at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jsyntaxpane;
import java.awt.event.ItemEvent;
import java.awt.Rectangle;
import javax.swing.DefaultComboBoxModel;
import javax.swing.text.BadLocationException;
import jsyntaxpane.actions.CaretMonitor;
public class SyntaxTester extends javax.swing.JFrame {
/** Creates new form Tester */
public SyntaxTester() {
DefaultSyntaxKit.initKit();
initComponents();
jCmbLangs.setModel(new DefaultComboBoxModel(DefaultSyntaxKit.getContentTypes()));
// jEdtTest.setContentType(jCmbLangs.getItemAt(0).toString());
jCmbLangs.setSelectedItem("text/java");
new CaretMonitor(jEdtTest, lblCaretPos);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
lblCaretPos = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
jEdtTest = new javax.swing.JEditorPane();
lblToken = new javax.swing.JLabel();
jCmbLangs = new javax.swing.JComboBox();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("JSyntaxPane Tester");
lblCaretPos.setText("Caret Position");
jEdtTest.setContentType("");
jEdtTest.setFont(new java.awt.Font("Monospaced", 0, 13));
jEdtTest.addCaretListener(new javax.swing.event.CaretListener() {
public void caretUpdate(javax.swing.event.CaretEvent evt) {
jEdtTestCaretUpdate(evt);
}
});
jScrollPane1.setViewportView(jEdtTest);
lblToken.setFont(new java.awt.Font("Courier New", 0, 12));
lblToken.setText("Token under cursor");
jCmbLangs.setMaximumRowCount(20);
jCmbLangs.setFocusable(false);
jCmbLangs.addItemListener(new java.awt.event.ItemListener() {
public void itemStateChanged(java.awt.event.ItemEvent evt) {
jCmbLangsItemStateChanged(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(lblToken, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 612, Short.MAX_VALUE)
.addGroup(layout.createSequentialGroup()
.addComponent(jCmbLangs, 0, 231, Short.MAX_VALUE)
.addGap(262, 262, 262)
.addComponent(lblCaretPos, javax.swing.GroupLayout.PREFERRED_SIZE, 119, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 612, Short.MAX_VALUE))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 395, Short.MAX_VALUE)
.addGap(2, 2, 2)
.addComponent(lblToken, javax.swing.GroupLayout.PREFERRED_SIZE, 19, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jCmbLangs, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lblCaretPos, javax.swing.GroupLayout.DEFAULT_SIZE, 23, Short.MAX_VALUE))
.addContainerGap())
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void jEdtTestCaretUpdate(javax.swing.event.CaretEvent evt) {//GEN-FIRST:event_jEdtTestCaretUpdate
if (jEdtTest.getDocument() instanceof SyntaxDocument) {
SyntaxDocument sDoc = (SyntaxDocument) jEdtTest.getDocument();
Token t = sDoc.getTokenAt(evt.getDot());
if (t != null) {
try {
String tData = sDoc.getText(t.start, Math.min(t.length, 40));
if (t.length > 40) {
tData += "...";
}
lblToken.setText(t.toString() + ": " + tData);
} catch (BadLocationException ex) {
// should not happen.. and if it does, just ignore it
System.err.println(ex);
ex.printStackTrace();
}
}
}
}//GEN-LAST:event_jEdtTestCaretUpdate
private void jCmbLangsItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_jCmbLangsItemStateChanged
if (evt.getStateChange() == ItemEvent.SELECTED) {
String lang = jCmbLangs.getSelectedItem().toString();
// save the state of the current JEditorPane, as it's Document is about
// to be replaced.
String t = jEdtTest.getText();
int caretPosition = jEdtTest.getCaretPosition();
Rectangle visibleRectangle = jEdtTest.getVisibleRect();
// install a new DefaultSyntaxKit on the JEditorPane for the requested language.
jEdtTest.setContentType(lang);
// restore the state of the JEditorPane - note that installing a new
// EditorKit causes the Document to be recreated.
SyntaxDocument sDoc = (SyntaxDocument) jEdtTest.getDocument();
jEdtTest.setText(t);
sDoc.clearUndos();
jEdtTest.setCaretPosition(caretPosition);
jEdtTest.scrollRectToVisible(visibleRectangle);
}
}//GEN-LAST:event_jCmbLangsItemStateChanged
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new SyntaxTester().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JComboBox jCmbLangs;
private javax.swing.JEditorPane jEdtTest;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JLabel lblCaretPos;
private javax.swing.JLabel lblToken;
// End of variables declaration//GEN-END:variables
}