protected void fileNew() {
if (currentFile != null) {
if (!currentFile.isDirectory()) {
currentFile = currentFile.getParentFile();
}
}
graph.clear();
gp.update(gp.getGraphics());
}
protected void fileOpen() {
JFileChooser chooser = null;
if (currentFile == null) {
chooser = new JFileChooser(startDirectory);
} else {
chooser = new JFileChooser(currentFile);
}
int returnVal = chooser.showOpenDialog(gw);
if (returnVal == JFileChooser.APPROVE_OPTION) {
graph.clear();
currentFile = chooser.getSelectedFile();
graph.loadAll(currentFile);
gp.update(gp.getGraphics());
}
}