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package tim.prune.gui;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import tim.prune.I18nManager;
import tim.prune.function.Cancellable;
/**
* Class to show a progress dialog for various time-consuming functions
*/
public class ProgressDialog implements ProgressIndicator
{
private JDialog _dialog = null;
private final String _titleKey;
private final String _labelKey;
private JProgressBar _progressBar = null;
private final JFrame _parentFrame;
private final Cancellable _function;
private boolean _cancelled = false;
private int _maxValue = -1;
/**
* Constructor
* @param inParentFrame parent frame for creating dialog
* @param inTitleKey key for dialog title text
* @param inLabelKey key for label text
* @param inFunction function which can be cancelled
*/
public ProgressDialog(JFrame inParentFrame, String inTitleKey,
String inLabelKey, Cancellable inFunction)
{
_titleKey = inTitleKey;
_labelKey = inLabelKey == null ? "confirm.running" : inLabelKey;
_parentFrame = inParentFrame;
_function = inFunction;
}
/**
* Constructor without cancel button
* @param inParentFrame parent frame
* @param inTitleKey key for dialog title
*/
public ProgressDialog(JFrame inParentFrame, String inTitleKey) {
this(inParentFrame, inTitleKey, null, null);
}
/**
* Create the dialog to show the progress
*/
private JDialog createProgressDialog()
{
JDialog dialog = new JDialog(_parentFrame, I18nManager.getText(_titleKey));
dialog.setLocationRelativeTo(_parentFrame);
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
panel.add(new JLabel(I18nManager.getText(_labelKey)), BorderLayout.NORTH);
// Centre panel with an empty border
JPanel centrePanel = new JPanel();
centrePanel.setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));
centrePanel.setLayout(new BorderLayout());
_progressBar = new JProgressBar();
_progressBar.setPreferredSize(new Dimension(300, 30));
_progressBar.setValue(0);
_progressBar.setStringPainted(true);
_progressBar.setString("");
centrePanel.add(_progressBar, BorderLayout.CENTER);
panel.add(centrePanel, BorderLayout.CENTER);
if (_function != null)
{
// Cancel button at the bottom
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
cancelButton.addActionListener(e -> {_cancelled = true; _function.cancel();});
buttonPanel.add(cancelButton);
panel.add(buttonPanel, BorderLayout.SOUTH);
}
dialog.getContentPane().add(panel);
dialog.pack();
return dialog;
}
/**
* Show the dialog in indeterminate mode, before limits are calculated
*/
public void show()
{
_cancelled = false;
if (_dialog == null) {
_dialog = createProgressDialog();
}
_dialog.setVisible(true);
setMaximumValue(-1);
}
/** Set the maximum value of the progress bar */
public void setMaximumValue(int inMax)
{
_maxValue = inMax;
_progressBar.setMaximum(inMax);
_progressBar.setMinimum(0);
_progressBar.setIndeterminate(inMax <= 1);
setValue(0);
}
/** Set the current value of the progress bar */
public void setValue(int inValue)
{
if (_maxValue > 0)
{
_progressBar.setString("" + inValue + " / " + _maxValue);
_progressBar.setValue(inValue);
}
else {
_progressBar.setString("" + inValue);
}
}
/**
* Close the dialog
*/
public void close()
{
if (_dialog != null) {
_dialog.dispose();
}
}
/**
* @return true if cancel button was pressed
*/
public boolean wasCancelled() {
return _cancelled;
}
@Override
public void showProgress(int inCurrent, int inMax)
{
if (inMax != _maxValue) {
setMaximumValue(inMax);
}
setValue(inCurrent);
}
}
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