/* * ALMA - Atacama Large Millimiter Array * (c) European Southern Observatory, 2002 * Copyright by ESO (in the framework of the ALMA collaboration) * and Cosylab 2002, All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ package alma.acs.gui.loglevel.leveldlg; 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.JOptionPane; import javax.swing.JPanel; import javax.swing.plaf.basic.BasicButtonUI; import alma.acs.gui.loglevel.LogLevelPanel; import alma.acs.gui.loglevel.LogPaneNotFoundException; /** * Component to be used as tabComponent; * Contains a JLabel to show the text and * a JButton to close the tab it belongs to */ @SuppressWarnings("serial") public class ButtonTabComponent extends JPanel { private static final long serialVersionUID = -7111655172215857672L; // The tabbed pane private final LogLevelPanel pane; // The name of this tab private final LogLevelSelectorPanel selectorPane; public ButtonTabComponent(final LogLevelPanel pane, LogLevelSelectorPanel selPane) { //unset default FlowLayout' gaps super(new FlowLayout(FlowLayout.LEFT, 0, 0)); if (pane == null) { throw new NullPointerException("TabbedPane is null"); } if (selPane== null) { throw new NullPointerException("LogLevelSelectorPanel is null"); } this.pane = pane; this.selectorPane=selPane; setOpaque(false); //make JLabel read titles from JTabbedPane JLabel label = new JLabel() { 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, 5)); //tab button JButton button = new TabButton(); add(button); //add more space to the top of the component setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0)); } private class TabButton extends JButton implements ActionListener { public TabButton() { int size = 17; 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); } /** * NOTE: there is only one source that can generate events: the button * * @see java.awt.event.ActionListener */ public void actionPerformed(ActionEvent e) { if (selectorPane.userChangedLogLevels()) { if (JOptionPane.showConfirmDialog( null, "Do you really want to discard changes?", "Confirm", JOptionPane.YES_NO_OPTION)==JOptionPane.NO_OPTION) { return; } } try { pane.removeLogSelectorTab(selectorPane.getName()); } catch (LogPaneNotFoundException ex) { System.err.println("Log panel not found: "+selectorPane.getName()); int i = pane.indexOfTabComponent(ButtonTabComponent.this); if (i != -1) { pane.remove(i); System.err.println("Error recovered: tab "+selectorPane.getName()+" removed"); } else { System.err.println("Impossible to remove tab named: "+selectorPane.getName()); } } } //we don't want to update UI for this button public void updateUI() { } //paint the cross 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)); g2.setColor(Color.BLACK); if (getModel().isRollover()) { g2.setColor(Color.MAGENTA); } int delta = 6; g2.drawLine(delta, delta, getWidth() - delta - 1, getHeight() - delta - 1); g2.drawLine(getWidth() - delta - 1, delta, delta, getHeight() - delta - 1); g2.dispose(); } } private final static MouseListener buttonMouseListener = new MouseAdapter() { public void mouseEntered(MouseEvent e) { Component component = e.getComponent(); if (component instanceof AbstractButton) { AbstractButton button = (AbstractButton) component; button.setBorderPainted(true); } } public void mouseExited(MouseEvent e) { Component component = e.getComponent(); if (component instanceof AbstractButton) { AbstractButton button = (AbstractButton) component; button.setBorderPainted(false); } } }; }