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tdf#97636 Added Undo/Redo functionality to Beanshell Editor

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Change-Id: Ie24f7bb5e59cd78ba2d06a4ed1b6a0bcaf1a3736
Reviewed-on: https://gerrit.libreoffice.org/22500
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
This commit is contained in:
Chirag Manwani
2016-02-19 17:14:05 +05:30
committed by Noel Grandin
parent 943af6cd6f
commit 03a5995ab0
1 changed files with 66 additions and 1 deletions
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67
scripting/java/com/sun/star/script/framework/provider/beanshell/PlainSourceView.java
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@@ -24,14 +24,25 @@ import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.UIManager;
import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.text.BadLocationException;
import javax.swing.undo.CannotUndoException;
import javax.swing.undo.CompoundEdit;
import javax.swing.undo.UndoManager;
public class PlainSourceView extends JScrollPane implements
ScriptSourceView, DocumentListener {
@@ -41,6 +52,10 @@ public class PlainSourceView extends JScrollPane implements
private GlyphGutter gg;
private int linecount;
private boolean isModified = false;
private UndoManager undoManager;
private static final String undoKey = "Undo";
private static final String redoKey = "Redo";
private CompoundEdit compoundEdit = null;
public PlainSourceView(ScriptSourceModel model) {
this.model = model;
@@ -107,6 +122,55 @@ public class PlainSourceView extends JScrollPane implements
ta.setLineWrap(false);
ta.insert(model.getText(), 0);
ta.setFont(new Font(Font.MONOSPACED, ta.getFont().getStyle(), ta.getFont().getSize()));
undoManager = new UndoManager();
ta.getDocument().addUndoableEditListener(new UndoableEditListener(){
@Override
public void undoableEditHappened(UndoableEditEvent editEvent) {
if(compoundEdit == null){
compoundEdit = new CompoundEdit();
}
compoundEdit.addEdit(editEvent.getEdit());
}
});
ta.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_MASK), undoKey);
ta.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_Y, InputEvent.CTRL_MASK), redoKey);
ta.addKeyListener(new KeyAdapter(){
@Override
public void keyReleased(KeyEvent ke){
if(ke.getKeyCode() == KeyEvent.VK_SPACE || ke.getKeyCode() == KeyEvent.VK_ENTER){
compoundEdit.end();
undoManager.addEdit(compoundEdit);
compoundEdit = null;
}
}
});
ta.getActionMap().put(undoKey, new AbstractAction(undoKey){
@Override
public void actionPerformed(ActionEvent event) {
if(compoundEdit!=null){
compoundEdit.end();
undoManager.addEdit(compoundEdit);
compoundEdit = null;
}
if(undoManager.canUndo()){
undoManager.undo();
}
}
});
ta.getActionMap().put(redoKey, new AbstractAction(redoKey){
@Override
public void actionPerformed(ActionEvent event) {
if(undoManager.canRedo()){
undoManager.redo();
}
}
});
linecount = ta.getLineCount();
gg = new GlyphGutter(this);
@@ -251,3 +315,4 @@ class GlyphGutter extends JComponent {
g.drawPolygon(arrow);
}
}