示例#1
0
  private boolean checkForSave() {
    // build warning message
    String message;
    if (file == null) {
      message = "File has been modified.  Save changes?";
    } else {
      message = "File \"" + file.getName() + "\" has been modified.  Save changes?";
    }

    // show confirm dialog
    int r =
        JOptionPane.showConfirmDialog(
            this,
            new JLabel(message),
            "Warning!",
            JOptionPane.YES_NO_CANCEL_OPTION,
            JOptionPane.WARNING_MESSAGE);

    if (r == JOptionPane.YES_OPTION) {
      // Save File
      if (fileChooser.showSaveDialog(this) == JFileChooser.APPROVE_OPTION) {
        // write the file
        physWriteTextFile(fileChooser.getSelectedFile(), textView.getText());
      } else {
        // user cancelled save after all
        return false;
      }
    }
    return r != JOptionPane.CANCEL_OPTION;
  }
示例#2
0
 public void saveFileAs() {
   // Force user to enter new file name
   if (fileChooser.showSaveDialog(this) == JFileChooser.APPROVE_OPTION) {
     file = fileChooser.getSelectedFile();
   } else {
     // user cancelled save after all
     return;
   }
   // file selected, so write it.
   physWriteTextFile(file, textView.getText());
   // update status
   statusView.setText(" Saved file \"" + file.getName() + "\".");
   // reset dirty bit
   dirty = false;
 }
示例#3
0
 public void openFile() {
   if (!dirty || checkForSave()) {
     if (fileChooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
       file = fileChooser.getSelectedFile();
     } else {
       // user cancelled open after all
       return;
     }
     // load file into text view
     textView.setText(physReadTextFile(file));
     // update status
     statusView.setText(" Loaded file \"" + file.getName() + "\".");
     // reset dirty bit
     dirty = false;
   }
 }