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package tim.prune.load.babel;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
* Superclass of all the filter definition panels, to be added in the cardset
* of the AddFilterDialog
*/
public abstract class FilterDefinition extends JPanel
{
/** Parent dialog to inform of parameter changes */
private AddFilterDialog _parentDialog = null;
/** Listener for key presses on the parameter entry fields */
protected KeyListener _paramChangeListener = null;
/**
* Constructor
*/
public FilterDefinition(AddFilterDialog inFilterDialog)
{
_parentDialog = inFilterDialog;
_paramChangeListener = new KeyAdapter() {
public void keyTyped(KeyEvent arg0) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
_parentDialog.filterParamsChanged();
}
});
}
};
}
/**
* @return true if the filter definition is valid
*/
public abstract boolean isFilterValid();
/**
* @return filter definition to pass to gpsbabel
*/
public String getString()
{
return "-x " + getFilterName() + getParameters();
}
/** @return filter name */
protected abstract String getFilterName();
/** Construct the GUI elements and add them to the panel */
protected abstract void makePanelContents();
/** @return filter parameters */
protected abstract String getParameters();
}
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