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package tim.prune.function;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.I18nManager;
import tim.prune.gui.WholeNumberField;
/**
* First step of functions which just require a single numeric
* parameter in order to run
*/
public class ChooseSingleParameter extends GenericFunction
{
/** Parent function which needs this parameter */
private SingleNumericParameterFunction _parent = null;
/** dialog */
private JDialog _dialog = null;
/** label which might need to be changed */
private JLabel _descLabel = null;
/** entry field */
private WholeNumberField _numberField = null;
/** ok button */
private JButton _okButton = null;
/** Constructor */
public ChooseSingleParameter(App inApp, SingleNumericParameterFunction inFunction)
{
super(inApp);
_parent = inFunction;
}
@Override
public String getNameKey() {
return _parent.getNameKey();
}
@Override
public void begin()
{
// Make dialog window
if (_dialog == null)
{
_dialog = new JDialog(_parentFrame, I18nManager.getText(_parent.getNameKey()), true);
_dialog.setLocationRelativeTo(_parentFrame);
_dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
_dialog.getContentPane().add(makeDialogComponents());
_dialog.pack();
}
// refresh and show the dialog
_descLabel.setText(I18nManager.getText(_parent.getDescriptionKey()));
int param = _parent.getCurrentParamValue();
if (param > 0) {
_numberField.setValue(param);
}
else {
_numberField.setText("");
}
_dialog.setVisible(true);
enableOkButton();
}
/**
* Create dialog components
* @return Panel containing all gui elements in dialog
*/
private JPanel makeDialogComponents()
{
JPanel dialogPanel = new JPanel();
dialogPanel.setLayout(new BorderLayout());
// label
_descLabel = new JLabel(I18nManager.getText(_parent.getDescriptionKey()));
dialogPanel.add(_descLabel, BorderLayout.NORTH);
// Centre panel with number entry field
JPanel centrePanel = new JPanel();
centrePanel.setLayout(new BorderLayout(8, 8));
_numberField = new WholeNumberField(4);
centrePanel.add(_numberField, BorderLayout.NORTH);
dialogPanel.add(centrePanel, BorderLayout.CENTER);
// Listener to enable/disable ok button
_numberField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
enableOkButton();
}
});
_numberField.addKeyListener(new KeyAdapter() {
public void keyReleased(KeyEvent inE)
{
int eCode = inE.getKeyCode();
if (eCode == KeyEvent.VK_ESCAPE) {_dialog.dispose();}
else if (eCode == KeyEvent.VK_ENTER) {finish();}
super.keyReleased(inE);
}
});
// button panel at bottom
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
_okButton = new JButton(I18nManager.getText("button.ok"));
ActionListener okListener = new ActionListener() {
public void actionPerformed(ActionEvent e)
{
finish();
}
};
_okButton.addActionListener(okListener);
_okButton.setEnabled(false);
buttonPanel.add(_okButton);
JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
_dialog.dispose();
}
});
buttonPanel.add(cancelButton);
dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
return dialogPanel;
}
/**
* Enable or disable the OK button as appropriate
*/
private void enableOkButton()
{
_okButton.setEnabled(_numberField.getValue() >= _parent.getMinAllowedValue()
&& _numberField.getValue() <= _parent.getMaxAllowedValue());
}
/**
* The OK button (or Enter) has been pressed
*/
private void finish()
{
if (_numberField.getValue() >= _parent.getMinAllowedValue()
&& _numberField.getValue() <= _parent.getMaxAllowedValue())
{
_parent.completeFunction(_numberField.getValue());
_dialog.dispose();
}
}
}
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