forgetest1
/
antlr
forked from jasder/antlr
1
0
Fork 0
Code Issues Pull Requests 1 Releases Wiki Activity

Handle the overwrite confirmation by overriding JFileChooser.approveSelection

This commit is contained in:
Sam Harwell 2013-03-07 15:21:18 -06:00
parent df2dcb6631
commit 5fdb01499d
2 changed files with 78 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
runtime/Java/src/org/antlr/v4/runtime/misc/JFileChooserConfirmOverwrite.java Normal file
View File

@ -0,0 +1,65 @@
/*
* [The "BSD license"]
* Copyright (c) 2013 Terence Parr
* Copyright (c) 2013 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.runtime.misc;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import java.io.File;
/**
*
* @author Sam Harwell
*/
public class JFileChooserConfirmOverwrite extends JFileChooser {
public JFileChooserConfirmOverwrite() {
setMultiSelectionEnabled(false);
}
@Override
public void approveSelection() {
File selectedFile = getSelectedFile();
if (selectedFile.exists()) {
int answer = JOptionPane.showConfirmDialog(this,
"Overwrite existing file?",
"Overwrite?",
JOptionPane.YES_NO_OPTION);
if (answer != JOptionPane.YES_OPTION) {
// do not call super.approveSelection
return;
}
}
super.approveSelection();
}
}

40
runtime/Java/src/org/antlr/v4/runtime/tree/gui/TreeViewer.java
View File

@ -35,6 +35,7 @@ import org.abego.treelayout.TreeForTreeLayout;
import org.abego.treelayout.TreeLayout;
import org.abego.treelayout.util.DefaultConfiguration;
import org.antlr.v4.runtime.misc.GraphicsSupport;
import org.antlr.v4.runtime.misc.JFileChooserConfirmOverwrite;
import org.antlr.v4.runtime.misc.NotNull;
import org.antlr.v4.runtime.misc.Nullable;
import org.antlr.v4.runtime.misc.Utils;
@ -57,6 +58,7 @@ import javax.swing.SwingUtilities;
import javax.swing.JFileChooser;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.filechooser.FileFilter;
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
@ -364,41 +366,25 @@ public class TreeViewer extends JComponent {
try {
File suggestedFile = generateNonExistingPngFile();
JFileChooser fileChooser = new JFileChooser();
JFileChooser fileChooser = new JFileChooserConfirmOverwrite();
fileChooser.setCurrentDirectory(suggestedFile.getParentFile());
fileChooser.setSelectedFile(suggestedFile);
int returnValue = fileChooser.showSaveDialog(dialog);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File pngFile = fileChooser.getSelectedFile();
ImageIO.write(bi, "png", pngFile);
boolean writeFile = true;
if (pngFile.exists()) {
int answer = JOptionPane.showConfirmDialog(dialog,
"Overwrite existing file?",
"Overwrite?",
JOptionPane.YES_NO_OPTION);
writeFile = (answer == JOptionPane.YES_OPTION);
try {
// Try to open the parent folder using the OS' native file manager.
Desktop.getDesktop().open(pngFile.getParentFile());
}
if (writeFile) {
ImageIO.write(bi, "png", pngFile);
try {
// Try to open the parent folder using the OS' native file manager.
Desktop.getDesktop().open(pngFile.getParentFile());
}
catch (Exception ex) {
// We could not launch the file manager: just show a popup that we
// succeeded in saving the PNG file.
JOptionPane.showMessageDialog(dialog, "Saved PNG to: " +
pngFile.getAbsolutePath());
ex.printStackTrace();
}
catch (Exception ex) {
// We could not launch the file manager: just show a popup that we
// succeeded in saving the PNG file.
JOptionPane.showMessageDialog(dialog, "Saved PNG to: " +
pngFile.getAbsolutePath());
ex.printStackTrace();
}
}
}