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package cuchaz.enigma.gui.elements;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.GridLayout;
import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
/**
* Implements a generic status bar for use in windows. The API is loosely based
* on Qt's QStatusBar.
*/
public class StatusBar {
private final JPanel ui = new JPanel(new BorderLayout());
private final JPanel leftPanel = new JPanel(new GridLayout(1, 1, 0, 0));
private final JPanel components = new JPanel();
private final JPanel permanentComponents = new JPanel();
private final JLabel temporaryMessage = new JLabel();
private final Timer timer = new Timer(0, e -> this.clearMessage());
public StatusBar() {
this.timer.setRepeats(false);
this.components.setLayout(new BoxLayout(this.components, BoxLayout.LINE_AXIS));
this.permanentComponents.setLayout(new BoxLayout(this.permanentComponents, BoxLayout.LINE_AXIS));
this.permanentComponents.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
this.leftPanel.add(this.components);
this.temporaryMessage.setHorizontalTextPosition(JLabel.LEFT);
this.ui.add(this.leftPanel, BorderLayout.CENTER);
this.ui.add(this.permanentComponents, BorderLayout.EAST);
}
/**
* Displays a temporary message in the status bar. The message is displayed
* until it is explicitly cleared through {@link #clearMessage()} or a new
* message is displayed.
*
* @param message the message to display
*/
public void showMessage(String message) {
this.showMessage(message, 0);
}
/**
* Displays a temporary message in the status bar. The message is displayed
* until it is explicitly cleared through {@link #clearMessage()}, a new
* message is displayed, or the timeout, if any, is reached.
*
* @param message the message to display
* @param timeout the timeout in milliseconds to wait until clearing the
* message; if 0, the message is not automatically cleared
*/
public void showMessage(String message, int timeout) {
this.timer.stop();
this.temporaryMessage.setText(message);
this.leftPanel.removeAll();
this.leftPanel.add(this.temporaryMessage);
this.leftPanel.revalidate();
if (timeout > 0) {
this.timer.setInitialDelay(timeout);
this.timer.start();
}
}
/**
* Clears any currently displayed temporary message.
*/
public void clearMessage() {
this.timer.stop();
this.leftPanel.removeAll();
this.leftPanel.add(this.components);
this.leftPanel.revalidate();
this.temporaryMessage.setText("");
}
/**
* Returns the currently displayed message, or the empty string otherwise.
*
* @return the currently displayed message
*/
public String currentMessage() {
return this.temporaryMessage.getText();
}
/**
* Adds a component to the status bar. These components are positioned on
* the left side of the status bar. When a temporary message is displayed,
* the component will be hidden until the message is cleared.
*
* @param comp the component to add
*/
public void addComponent(Component comp) {
this.components.add(comp);
}
/**
* Removes a component from the status bar.
*
* @param comp the component to remove
*/
public void removeComponent(Component comp) {
this.components.remove(comp);
}
/**
* Adds a permanent component to the status bar. These components will not
* be hidden by temporary messages and will be displayed on the right side
* of the status bar.
*
* @param comp the component to add
*/
public void addPermanentComponent(Component comp) {
this.permanentComponents.add(comp);
}
/**
* Removes a permanent component from the status bar.
*
* @param comp the component to remove
*/
public void removePermanentComponent(Component comp) {
this.permanentComponents.remove(comp);
}
public JPanel getUi() {
return this.ui;
}
}
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