Java tutorial
/* * Copyright (C) 2003 Devon Jones * * 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 plugin.notes.gui; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Desktop; import java.awt.SystemColor; import java.awt.event.ActionEvent; import java.awt.event.FocusAdapter; import java.awt.event.FocusEvent; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.io.File; import java.io.IOException; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JLabel; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.UIManager; import javax.swing.border.LineBorder; import javax.swing.filechooser.FileSystemView; import org.apache.commons.lang3.SystemUtils; import gmgen.GMGenSystem; import pcgen.io.PCGFile; import pcgen.util.Logging; import plugin.notes.NotesPlugin; /** * JIcon is a small form that uses an image, a button and some text to * represent a file. You can launch files in supported operating systems from * JIcon into their associated application. */ class JIcon extends JPanel { private final File launch; private final NotesPlugin plugin; // Variables declaration - do not modify private JButton button; private JLabel label; private JPopupMenu contextMenu; /** * Creates new form JIcon * * @param name file object for the JIcon * @param plugin */ JIcon(File name, NotesPlugin plugin) { this.plugin = plugin; initComponents(); if (name.getName().length() > 18) { label.setText(' ' + name.getName().substring(0, 15) + "... "); } else { label.setText(' ' + name.getName() + ' '); } button.setIcon(getIconForType(name)); button.setToolTipText(name.getName()); this.launch = name; } /** * Gets the icon of the JIcon object * *@param file File name that this represents *@return The icon */ private Icon getIconForType(File file) { // TODO: this blows, it's hardcoded. This needs to be in a properties file. // XXX ideally this should be use mime type String ext = file.getName().replaceFirst(".*\\.", ""); String labelText = ' ' + file.getName() + ' '; if (file.getName().length() > 18) { labelText = ' ' + file.getName().substring(0, 15) + "... "; } label.setText(labelText); Icon ico = FileSystemView.getFileSystemView().getSystemIcon(file); button.setIcon(ico); button.setToolTipText(file.getName()); return ico; } /** Delete the file from disk that this icon represents */ private void deleteFile() { int choice = JOptionPane.showConfirmDialog(GMGenSystem.inst, "Delete file " + launch.getPath(), "Delete File?", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE); if (choice == JOptionPane.YES_OPTION) { try { launch.delete(); Container cnt = getParent(); cnt.remove(this); if (cnt instanceof JComponent) { JComponent comp = (JComponent) cnt; comp.updateUI(); } } catch (Exception e) { e.printStackTrace(); } } } /** * Launches a file into the appropriate program for the OS we are running on */ private void launchFile() { if (PCGFile.isPCGenCharacterOrPartyFile(launch)) { plugin.loadRecognizedFileType(launch); } else { boolean opened = false; // Use desktop if available if (Desktop.isDesktopSupported()) { Desktop d = Desktop.getDesktop(); if (d.isSupported(Desktop.Action.OPEN)) { try { d.open(launch); opened = true; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } if (!opened) { if (SystemUtils.IS_OS_UNIX) { String openCmd = SystemUtils.IS_OS_MAC_OSX ? "/usr/bin/open" : "xdg-open"; String filePath = launch.getAbsolutePath(); String[] args = { openCmd, filePath }; Logging.debugPrintLocalised("Runtime.getRuntime().exec: [{0}] [{1}]", args[0], args[1]); try { Runtime.getRuntime().exec(args); } catch (IOException e) { Logging.errorPrint(e.getMessage(), e); } } else if (SystemUtils.IS_OS_WINDOWS) { try { String start = ("rundll32 url.dll,FileProtocolHandler file://" + launch.getAbsoluteFile()); Runtime.getRuntime().exec(start); } catch (Exception e) { Logging.errorPrint(e.getMessage(), e); } } } } } private void buttonActionPerformed(ActionEvent evt) { } private void buttonFocusGained(FocusEvent evt) { setBackground(SystemColor.textHighlight); button.setBackground(SystemColor.textHighlight); } private void buttonFocusLost(FocusEvent evt) { setBackground((Color) UIManager.getDefaults().get("Panel.background")); button.setBackground((Color) UIManager.getDefaults().get("Button.background")); } private void buttonKeyReleased(KeyEvent evt) { int key = evt.getKeyCode(); if (key == KeyEvent.VK_DELETE) { deleteFile(); } else if (key == KeyEvent.VK_ENTER) { launchFile(); } } private void buttonMouseClicked(MouseEvent evt) { if (evt.getClickCount() >= 2) { launchFile(); } } private void buttonMouseReleased(MouseEvent evt) { //GEN-FIRST:event_buttonMouseReleased if (evt.isPopupTrigger()) { contextMenu.show(evt.getComponent(), evt.getX(), evt.getY()); } } //GEN-LAST:event_buttonMouseReleased private void deleteMIActionPerformed(ActionEvent evt) { deleteFile(); } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ private void initComponents() { contextMenu = new JPopupMenu(); JMenuItem launchMI = new JMenuItem(); JMenuItem deleteMI = new JMenuItem(); button = new JButton(); label = new JLabel(); launchMI.setText("Launch File (enter)"); launchMI.addActionListener(this::launchMIActionPerformed); contextMenu.add(launchMI); deleteMI.setText("Delete File (del)"); deleteMI.addActionListener(this::deleteMIActionPerformed); contextMenu.add(deleteMI); setLayout(new BorderLayout()); setBackground((Color) UIManager.getDefaults().get("Panel.background")); setBorder(new LineBorder(new Color(0, 0, 0))); button.setBackground((Color) UIManager.getDefaults().get("Button.background")); button.setBorder(null); button.addActionListener(this::buttonActionPerformed); button.addFocusListener(new FocusAdapter() { @Override public void focusGained(FocusEvent evt) { buttonFocusGained(evt); } @Override public void focusLost(FocusEvent evt) { buttonFocusLost(evt); } }); button.addKeyListener(new KeyAdapter() { @Override public void keyReleased(KeyEvent evt) { buttonKeyReleased(evt); } }); button.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent evt) { buttonMouseClicked(evt); } @Override public void mouseReleased(MouseEvent evt) { buttonMouseReleased(evt); } }); add(button, BorderLayout.NORTH); label.setBackground(new Color(204, 204, 204)); add(label, BorderLayout.CENTER); } private void launchMIActionPerformed(ActionEvent evt) { launchFile(); } }