//------------------------------------------------------------------------------------------------// // // // B u t t o n T a b C o m p o n e n t // // // //------------------------------------------------------------------------------------------------// /* * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.audiveris.omr.ui.util; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.swing.AbstractButton; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.plaf.basic.BasicButtonUI; /** * Component to be used as tabComponent. * Contains a JLabel to show the text and a JButton to close the tab it belongs to. * * @author Hervé Bitteur */ public class ButtonTabComponent extends JPanel { /** The same listener for all TabButton instances in application!. */ private static final MouseListener buttonMouseListener = new MouseAdapter() { @Override public void mouseEntered (MouseEvent e) { Component component = e.getComponent(); if (component instanceof AbstractButton) { AbstractButton button = (AbstractButton) component; button.setBorderPainted(true); } } @Override public void mouseExited (MouseEvent e) { Component component = e.getComponent(); if (component instanceof AbstractButton) { AbstractButton button = (AbstractButton) component; button.setBorderPainted(false); } } }; /** The containing JTabbedPane. */ private final ClosableTabbedPane pane; /** * Creates a new {@code ButtonTabComponent} object. * * @param pane the containing tabbed pane */ public ButtonTabComponent (final ClosableTabbedPane pane) { //unset default FlowLayout' gaps super(new FlowLayout(FlowLayout.LEFT, 0, 0)); if (pane == null) { throw new NullPointerException("TabbedPane is null"); } this.pane = pane; setOpaque(true); //make JLabel read title from JTabbedPane JLabel label = new JLabel() { @Override public String getText () { int i = pane.indexOfTabComponent(ButtonTabComponent.this); if (i != -1) { return pane.getTitleAt(i); } return null; } }; add(label); //add more space between the label and the button label.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 2)); //tab button JButton button = new TabButton(); add(button); //add more space to the top of the component ///setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0)); } //-----------// // TabButton // //-----------// private class TabButton extends JButton implements ActionListener { TabButton () { final int size = 13; // Button side length setPreferredSize(new Dimension(size, size)); setToolTipText("close this tab"); //Make the button looks the same for all Laf's setUI(new BasicButtonUI()); //Make it transparent setContentAreaFilled(false); //No need to be focusable setFocusable(false); setBorder(BorderFactory.createEtchedBorder()); setBorderPainted(false); //Making nice rollover effect //we use the same listener for all buttons addMouseListener(buttonMouseListener); setRolloverEnabled(true); //Close the proper tab by clicking the button addActionListener(this); } @Override public void actionPerformed (ActionEvent e) { int i = pane.indexOfTabComponent(ButtonTabComponent.this); if (i != -1) { // Let user give the last word if (pane.tabAboutToClose(i)) { pane.remove(i); } } } //we don't want to update UI for this button @Override public void updateUI () { } //paint the cross @Override protected void paintComponent (Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g.create(); //shift the image for pressed buttons if (getModel().isPressed()) { g2.translate(1, 1); } g2.setStroke(new BasicStroke(2)); if (getModel().isRollover()) { g2.setColor(Color.MAGENTA); } else { g2.setColor(Color.BLACK); } int delta = 4; // Margin around the cross g2.drawLine(delta, delta, getWidth() - delta - 1, getHeight() - delta - 1); g2.drawLine(getWidth() - delta - 1, delta, delta, getHeight() - delta - 1); g2.dispose(); } } }