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package tim.prune.function.compress;
import java.awt.Component;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.awt.event.KeyListener;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import tim.prune.I18nManager;
import tim.prune.data.Track;
/**
* Superclass for compression algorithms with a single text field parameter
*/
public abstract class SingleParameterAlgorithm extends CompressionAlgorithm
{
/** Text field for entering parameter */
private JTextField _parameterField = null;
/** Listener from parent dialog */
private ActionListener _listener = null;
/**
* Constructor
* @param inTrack track object
* @param inDetails track details object
* @param inListener listener to attach to activation control
*/
public SingleParameterAlgorithm(Track inTrack, TrackDetails inDetails, ActionListener inListener)
{
super(inTrack, inDetails, inListener);
_listener = inListener;
_parameterField = new JTextField();
// Add listener to parameter field to re-run preview (and en/disable ok) when param changed
_parameterField.addKeyListener(new KeyListener() {
public void keyTyped(java.awt.event.KeyEvent arg0) {};
public void keyPressed(java.awt.event.KeyEvent arg0) {};
public void keyReleased(java.awt.event.KeyEvent arg0) {if (isActivated()) _listener.actionPerformed(null);};
});
}
/**
* @return specific gui components for dialog
* @param inLabelKey key for label
* @param inParamValue initial value of parameter
*/
protected Component getSpecificGuiComponents(String inLabelKey, String inParamValue)
{
// Create panel with label and text field
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(0, 2));
JLabel label = new JLabel(I18nManager.getText(inLabelKey) + " : ");
label.setHorizontalAlignment(SwingConstants.RIGHT);
panel.add(label);
panel.add(_parameterField);
_parameterField.setText(inParamValue);
return panel;
}
/**
* Parse the text field to get parameter
* @return parameter given as double
*/
protected double getParameter()
{
double param = 0.0;
try {
// Parse from string
param = Double.parseDouble(_parameterField.getText());
}
catch (NumberFormatException nfe) {} // ignore, param stays zero
return param;
}
/**
* @return the text field component
*/
protected JTextField getTextField()
{
return _parameterField;
}
}
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