path: root/dozentenmodul/src/main/java/org/openslx/dozmod/gui/helper/QFileChooser.java

package org.openslx.dozmod.gui.helper;

import java.awt.Component;

import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.LookAndFeel;
import javax.swing.UIManager;

import org.apache.log4j.Logger;

@SuppressWarnings("serial")
public class QFileChooser extends JFileChooser {

	private static final Logger LOGGER = Logger.getLogger(QFileChooser.class);

	public QFileChooser(String path, boolean dirMode) {
		super(path);

		// Ugly hack to get a prettier file chooser with GTK
		LookAndFeel old = UIManager.getLookAndFeel();
		if (old == null || !old.getName().toLowerCase().contains("gtk")) {
			old = null;
		} else {
			try {
				UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
			} catch (Exception e) {
				LOGGER.error("Unable to set cross-platform 'Look and Feel'", e);
			}
		}
		if (old != null) {
			updateUI();
			try {
				UIManager.setLookAndFeel(old);
			} catch (Exception e) {
				LOGGER.error("Unable to reset 'Look and Feel'", e);
			}
			refreshUI(this, false);
		}

		setFileSelectionMode(dirMode ? JFileChooser.DIRECTORIES_ONLY : JFileChooser.FILES_ONLY);
	}

	private static void refreshUI(JComponent c, boolean includeParent) {
		if (includeParent)
			c.updateUI();

		for (int i = 0; i < c.getComponentCount(); i++) {
			Component child = c.getComponent(i);
			if (child instanceof JComponent) {
				refreshUI((JComponent) child, true);
			}
		}
	}
}