org.appdapter.gui.swing.JTabbedPaneWithCloseIcons Maven / Gradle / Ivy

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Appdapter Maven project including Java and Scala, produces jar, not bundle. Excludes concrete SLF4J binding.
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package org.appdapter.gui.swing;

/**
 * @author Obtained from http://forums.java.sun.com
 *
 */
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/** * A JTabbedPane which has a close ('X') icon on each tab. * * To add a tab, use the method addTab(String, Component) * * To have an extra icon on each tab (e.g. like in JBuilder, showing the file type) use * the method addTab(String, Component, Icon). Only clicking the 'X' closes the tab. */

public class JTabbedPaneWithCloseIcons extends JTabbedPane implements MouseListener {

	public JTabbedPaneWithCloseIcons(int dir) {
		super(dir);
		addMouseListener(this);
	}

	public void addTab(String title, Component component) {
		this.addTab(title, component, null);
	}

	public void addTab(String title, Component component, Icon extraIcon) {
		super.addTab(title, new CloseTabIcon(extraIcon), component);
	}

	public void mouseClicked(MouseEvent e) {
		try {
			int tabNumber = getUI().tabForCoordinate(this, e.getX(), e.getY());
			if (tabNumber < 0)
				return;
			Icon icon = getIconAt(tabNumber);
			if (icon instanceof CloseTabIcon) {
				Rectangle rect = ((CloseTabIcon) icon).getBounds();
				if (rect.contains(e.getX(), e.getY())) {
					//the tab is being closed      
					this.removeTabAt(tabNumber);
				}
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}

	public void mouseEntered(MouseEvent e) {
	}

	public void mouseExited(MouseEvent e) {
	}

	public void mousePressed(MouseEvent e) {
	}

	public void mouseReleased(MouseEvent e) {
	}

	public void setAutoRequestFocus(boolean b) {
		// TODO Auto-generated method stub

	}

	public void setShowCloseButtonOnMouseOver(boolean b) {
		// TODO Auto-generated method stub

	}

	public void setBoldActiveTab(boolean b) {
		// TODO Auto-generated method stub

	}

	public void setScrollSelectedTabOnWheel(boolean b) {
		// TODO Auto-generated method stub

	}

	public void setCloseTabOnMouseMiddleButton(boolean closableTabs) {
		// TODO Auto-generated method stub

	}

	public void setTabEditingAllowed(boolean b) {
		// TODO Auto-generated method stub

	}

	public void setShowCloseButton(boolean closableTabs) {
		// TODO Auto-generated method stub

	}

	public void setUseDefaultShowCloseButtonOnTab(boolean closableTabs) {
		// TODO Auto-generated method stub

	}

	public void setShowCloseButtonOnTab(boolean closableTabs) {
		// TODO Auto-generated method stub

	}

}

/** * The class which generates the 'X' icon for the tabs. The constructor * accepts an icon which is extra to the 'X' icon, so you can have tabs * like in JBuilder. This value is null if no extra icon is required. */

class CloseTabIcon implements Icon {
	private int x_pos;
	private int y_pos;
	private int width;
	private int height;
	private Icon fileIcon;

	public CloseTabIcon(Icon fileIcon) {
		this.fileIcon = fileIcon;
		width = 18;
		height = 18;
	}

	public void paintIcon(Component c, Graphics g, int x, int y) {
		this.x_pos = x;
		this.y_pos = y;
		Color col = g.getColor();
		g.setColor(Color.black);
		int y_p = y + 2;
		g.drawLine(x + 1, y_p, x + 12, y_p);
		g.drawLine(x + 1, y_p + 13, x + 12, y_p + 13);
		g.drawLine(x, y_p + 1, x, y_p + 12);
		g.drawLine(x + 13, y_p + 1, x + 13, y_p + 12);
		g.drawLine(x + 3, y_p + 3, x + 10, y_p + 10);
		g.drawLine(x + 3, y_p + 4, x + 9, y_p + 10);
		g.drawLine(x + 4, y_p + 3, x + 10, y_p + 9);
		g.drawLine(x + 10, y_p + 3, x + 3, y_p + 10);
		g.drawLine(x + 10, y_p + 4, x + 4, y_p + 10);
		g.drawLine(x + 9, y_p + 3, x + 3, y_p + 9);
		g.setColor(col);
		if (fileIcon != null) {
			fileIcon.paintIcon(c, g, x + width, y_p);
		}
	}

	public int getIconWidth() {
		return width + (fileIcon != null ? fileIcon.getIconWidth() : 0);
	}

	public int getIconHeight() {
		return height;
	}

	public Rectangle getBounds() {
		return new Rectangle(x_pos, y_pos, width, height);
	}

	public void setShowCloseButtonOnTab(boolean closableTabs) {
		// TODO Auto-generated method stub

	}

	public void setBoldActiveTab(boolean closableTabs) {
		// TODO Auto-generated method stub

	}
}