Java tutorial
/* * Copyright 2009 Connor Petty <cpmeister@users.sourceforge.net> * * 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 pcgen.gui2; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.SwingConstants; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import org.apache.commons.lang3.StringUtils; import pcgen.facade.core.CharacterFacade; import pcgen.facade.util.ListFacade; import pcgen.facade.util.ReferenceFacade; import pcgen.facade.util.event.ListEvent; import pcgen.facade.util.event.ListListener; import pcgen.facade.util.event.ReferenceEvent; import pcgen.facade.util.event.ReferenceListener; import pcgen.gui2.tabs.InfoTabbedPane; import pcgen.gui2.tools.Icons; import pcgen.gui2.util.SharedTabPane; import pcgen.system.CharacterManager; /** * This is the tabbed pane for PCGen characters. Unlike normal tabbed panes, the * CharacterTabs pane really only has a component single child component, the * InfoTabbedPane. The CharacterTabs pane is responsible for notifying both the * PCGenFrame and the InfoTabbedPane when a change in character selection * occurs. * * @see pcgen.gui2.PCGenFrame * @see pcgen.gui2.tabs.InfoTabbedPane */ public final class CharacterTabs extends SharedTabPane implements ChangeListener, ReferenceListener<CharacterFacade>, ListListener<CharacterFacade> { private final PCGenFrame frame; //This holds the list of characters as well as the order in which they are displayed private final List<CharacterFacade> characters; private final Map<CharacterFacade, TabLabel> listenerMap; private final InfoTabbedPane infoTabbedPane; private final JPopupMenu popupMenu; public CharacterTabs(PCGenFrame frame) { this.frame = frame; this.characters = new ArrayList<>(); this.infoTabbedPane = new InfoTabbedPane(); this.listenerMap = new HashMap<>(); this.popupMenu = new JPopupMenu(); initComponents(); } private void initComponents() { CharacterManager.getCharacters().addListListener(this); frame.getSelectedCharacterRef().addReferenceListener(this); setTabPlacement(SwingConstants.BOTTOM); addChangeListener(this); setSharedComponent(infoTabbedPane); //Initialize popup menu PCGenActionMap actions = frame.getActionMap(); popupMenu.add(actions.get(PCGenActionMap.NEW_COMMAND)); popupMenu.add(actions.get(PCGenActionMap.CLOSE_COMMAND)); popupMenu.add(actions.get(PCGenActionMap.SAVE_COMMAND)); popupMenu.add(actions.get(PCGenActionMap.SAVEAS_COMMAND)); addMouseListener(new PopupListener()); } private void addCharacter(CharacterFacade character) { characters.add(character); TabLabel tabLabel = new TabLabel(character); addTab(tabLabel); listenerMap.put(character, tabLabel); } private void removeCharacter(CharacterFacade character) { int index = characters.indexOf(character); characters.remove(index); removeTabAt(index); listenerMap.remove(character).removeListeners(); infoTabbedPane.characterRemoved(character); } @Override public void referenceChanged(ReferenceEvent<CharacterFacade> e) { setSelectedIndex(characters.indexOf(e.getNewReference())); } @Override public void stateChanged(ChangeEvent e) { int index = getSelectedIndex(); CharacterFacade character = index != -1 ? characters.get(index) : null; frame.setSelectedCharacter(character); if (character != null) { infoTabbedPane.setCharacter(character); } else { infoTabbedPane.clearStateMap(); } } @Override public void elementAdded(ListEvent<CharacterFacade> e) { addCharacter(e.getElement()); } @Override public void elementRemoved(ListEvent<CharacterFacade> e) { removeCharacter(e.getElement()); } @Override public void elementsChanged(ListEvent<CharacterFacade> e) { removeAll(); for (CharacterFacade character : characters) { listenerMap.remove(character).removeListeners(); } characters.clear(); for (CharacterFacade character : (ListFacade<CharacterFacade>) e.getSource()) { addCharacter(character); } infoTabbedPane.clearStateMap(); } @Override public void elementModified(ListEvent<CharacterFacade> e) { } private class TabLabel extends JPanel implements ActionListener, ReferenceListener<String> { private JLabel titleLabel; private JButton closeButton; private final CharacterFacade character; private final ReferenceFacade<String> tabNameRef; private final ReferenceFacade<String> nameRef; public TabLabel(CharacterFacade character) { super(new FlowLayout(FlowLayout.CENTER, 5, 2)); this.character = character; this.tabNameRef = character.getTabNameRef(); this.nameRef = character.getNameRef(); initComponents(); closeButton.addActionListener(this); tabNameRef.addReferenceListener(this); nameRef.addReferenceListener(this); } private void initComponents() { if (StringUtils.isNotEmpty(tabNameRef.get())) { titleLabel = new JLabel(tabNameRef.get()); } else { titleLabel = new JLabel(nameRef.get()); } add(titleLabel); closeButton = new JButton(); closeButton.setMargin(new Insets(0, 0, 0, 0)); closeButton.setBorder(BorderFactory.createEmptyBorder()); closeButton.setFocusable(false); closeButton.setBorderPainted(false); closeButton.setContentAreaFilled(false); closeButton.setRolloverEnabled(true); ImageIcon icon = Icons.XButton_Stat.getImageIcon(); Dimension size = new Dimension(icon.getIconWidth(), icon.getIconHeight()); Insets insets = closeButton.getInsets(); size.width += insets.left + insets.right; size.height += insets.top + insets.bottom; closeButton.setMinimumSize(size); closeButton.setPreferredSize(size); closeButton.setMaximumSize(size); closeButton.setIcon(icon); closeButton.setRolloverIcon(Icons.XButton_Roll.getImageIcon()); closeButton.setPressedIcon(Icons.XButton_Click.getImageIcon()); add(closeButton); setOpaque(false); } public void removeListeners() { tabNameRef.removeReferenceListener(this); nameRef.removeReferenceListener(this); } @Override public void referenceChanged(ReferenceEvent<String> e) { if (e.getSource() == nameRef) { if (StringUtils.isEmpty(tabNameRef.get())) { titleLabel.setText(e.getNewReference()); } } else { if (StringUtils.isNotEmpty(e.getNewReference())) { titleLabel.setText(e.getNewReference()); } else { titleLabel.setText(nameRef.get()); } } } @Override public void actionPerformed(ActionEvent e) { frame.closeCharacter(character); } } private class PopupListener extends MouseAdapter { @Override public void mousePressed(MouseEvent e) { maybeShowPopup(e); } @Override public void mouseReleased(MouseEvent e) { maybeShowPopup(e); } private void maybeShowPopup(MouseEvent e) { if (e.isPopupTrigger()) { popupMenu.setVisible(true); popupMenu.show(e.getComponent(), e.getX(), e.getY() - popupMenu.getHeight()); } } } }