Java tutorial
/* * Copyright (c) 2009 Tom Parker <thpr@users.sourceforge.net> * * This program 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 program 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ package pcgen.gui2.converter.panel; import java.awt.Component; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.FilenameFilter; import java.util.ArrayList; import java.util.List; import javax.swing.AbstractButton; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.SpringLayout; import org.apache.commons.lang3.StringUtils; import org.apache.commons.lang3.SystemUtils; import pcgen.cdom.base.CDOMObject; import pcgen.cdom.enumeration.ListKey; import pcgen.cdom.enumeration.ObjectKey; import pcgen.core.Campaign; import pcgen.gui2.converter.event.ProgressEvent; import pcgen.gui2.converter.event.TaskStrategyMessage; import pcgen.system.PCGenSettings; public class WriteDirectoryPanel extends ConvertSubPanel { private File path = null; private final SpringLayout layout = new SpringLayout(); private final JLabel fileLabel; private final JLabel warningLabel; private final FilenameFilter pccFileFilter = (parentDir, fileName) -> { if (StringUtils.endsWithIgnoreCase(fileName, ".pcc")) { return true; } return new File(parentDir, fileName).isDirectory(); }; private List<Campaign> campaignList; public WriteDirectoryPanel() { fileLabel = new JLabel(); warningLabel = new JLabel(); } @Override public boolean performAnalysis(CDOMObject pc) { TaskStrategyMessage.sendStatus(this, "Finding Data Directories"); campaignList = pc.getListFor(ListKey.CAMPAIGN); path = pc.get(ObjectKey.WRITE_DIRECTORY); if (path != null) { fileLabel.setText(path.getAbsolutePath()); } else { PCGenSettings context = PCGenSettings.getInstance(); String outputPathName = context.initProperty(PCGenSettings.CONVERT_OUTPUT_SAVE_PATH, SystemUtils.USER_DIR); path = new File(outputPathName); } pc.put(ObjectKey.WRITE_DIRECTORY, path); fireProgressEvent(ProgressEvent.ALLOWED); return true; } @Override public boolean autoAdvance(CDOMObject pc) { return false; } /** * @see pcgen.gui2.converter.panel.ConvertSubPanel#returnAllowed() */ @Override public boolean returnAllowed() { return true; } @Override public void setupDisplay(JPanel panel, final CDOMObject pc) { panel.setLayout(layout); Component label = new JLabel("Please select the Directory where Converted files should be written: "); AbstractButton button = new JButton("Browse..."); button.setMnemonic('r'); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent arg0) { JFileChooser chooser = new JFileChooser(); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); chooser.setDialogType(JFileChooser.OPEN_DIALOG); chooser.setCurrentDirectory(path.getParentFile()); chooser.setSelectedFile(path); while (true) { int open = chooser.showOpenDialog(null); if (open == JFileChooser.APPROVE_OPTION) { File fileToOpen = chooser.getSelectedFile(); if (fileToOpen.isDirectory() && fileToOpen.canRead() && fileToOpen.canWrite()) { path = fileToOpen; pc.put(ObjectKey.WRITE_DIRECTORY, path); fileLabel.setText(path.getAbsolutePath()); PCGenSettings context = PCGenSettings.getInstance(); context.setProperty(PCGenSettings.CONVERT_OUTPUT_SAVE_PATH, path.getAbsolutePath()); showWarning(); break; } JOptionPane.showMessageDialog(null, "Selection must be a valid " + "(readable & writeable) Directory"); chooser.setCurrentDirectory(path.getParentFile()); } else if (open == JFileChooser.CANCEL_OPTION) { break; } } } }); panel.add(label); panel.add(fileLabel); panel.add(button); panel.add(warningLabel); showWarning(); layout.putConstraint(SpringLayout.NORTH, label, 50, SpringLayout.NORTH, panel); layout.putConstraint(SpringLayout.NORTH, fileLabel, 75 + label.getPreferredSize().height, SpringLayout.NORTH, panel); layout.putConstraint(SpringLayout.NORTH, button, 75 + label.getPreferredSize().height, SpringLayout.NORTH, panel); layout.putConstraint(SpringLayout.WEST, label, 25, SpringLayout.WEST, panel); layout.putConstraint(SpringLayout.WEST, fileLabel, 25, SpringLayout.WEST, panel); layout.putConstraint(SpringLayout.EAST, button, -50, SpringLayout.EAST, panel); layout.putConstraint(SpringLayout.NORTH, warningLabel, 20, SpringLayout.SOUTH, fileLabel); layout.putConstraint(SpringLayout.WEST, warningLabel, 25, SpringLayout.WEST, panel); fileLabel.setText(path.getAbsolutePath()); } private void showWarning() { List<Campaign> existingCampaigns = getExistingPccs(); StringBuilder warning = new StringBuilder("<html>"); if (!existingCampaigns.isEmpty()) { warning.append("<b>Warning</b>: Some converted campaigns already exist in this "); warning.append("destination folder and will be skipped:\n<UL>"); final int maxCampaigns = 15; int i = 1; for (Campaign camp : existingCampaigns) { if ((i >= maxCampaigns) && (existingCampaigns.size() > maxCampaigns)) { warning.append( "<li>" + (existingCampaigns.size() - maxCampaigns + 1) + " more campaigns.</li>"); break; } warning.append("<li>"); warning.append(camp.getName()); warning.append("</li>"); i++; } warning.append("</ul>"); } warning.append("</html>"); warningLabel.setText(warning.toString()); } private List<Campaign> getExistingPccs() { List<File> existingFiles = new ArrayList<>(); findPCCFiles(path, existingFiles); List<Campaign> matchingCampaigns = new ArrayList<>(); for (Campaign camp : campaignList) { File campFile = new File(camp.getSourceURI()); for (File file : existingFiles) { if (file.getName().equals(campFile.getName())) { matchingCampaigns.add(camp); break; } } } return matchingCampaigns; } private void findPCCFiles(File aDirectory, List<File> existingFiles) { if (aDirectory.isDirectory()) { for (File file : aDirectory.listFiles(pccFileFilter)) { if (file.isDirectory()) { findPCCFiles(file, existingFiles); continue; } existingFiles.add(file); } } } }