configsectionplugins.java

这是一个基于java编写的torrent的P2P源码

/*
 * File    : ConfigSectionPlguins.java
 * 
 * Copyright (C) 2004, 2005, 2006 Aelitis SAS, All rights Reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License.
 *
 * 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 General Public License for more details ( see the LICENSE file ).
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * AELITIS, SAS au capital de 46,603.30 euros,
 * 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
 */

package org.gudy.azureus2.ui.swt.views.configsections;

import java.io.File;
import java.util.*;
import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.program.Program;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.util.FileUtil;
import org.gudy.azureus2.plugins.PluginException;
import org.gudy.azureus2.plugins.PluginInterface;
import org.gudy.azureus2.plugins.ui.config.ConfigSection;
import org.gudy.azureus2.plugins.ui.config.Parameter;
import org.gudy.azureus2.pluginsimpl.local.PluginInitializer;
import org.gudy.azureus2.pluginsimpl.local.PluginInterfaceImpl;
import org.gudy.azureus2.pluginsimpl.local.ui.config.BooleanParameterImpl;
import org.gudy.azureus2.pluginsimpl.local.ui.config.ParameterRepository;
import org.gudy.azureus2.ui.swt.ImageRepository;
import org.gudy.azureus2.ui.swt.Messages;
import org.gudy.azureus2.ui.swt.Utils;
import org.gudy.azureus2.ui.swt.config.DualChangeSelectionActionPerformer;
import org.gudy.azureus2.ui.swt.config.IAdditionalActionPerformer;
import org.gudy.azureus2.ui.swt.config.plugins.PluginParameter;
import org.gudy.azureus2.ui.swt.mainwindow.Colors;
import org.gudy.azureus2.ui.swt.mainwindow.Cursors;
import org.gudy.azureus2.ui.swt.plugins.UISWTConfigSection;
import org.gudy.azureus2.ui.swt.views.ConfigView;

import com.aelitis.azureus.core.AzureusCore;

/**
 * Configuration Section that lists all the plugins and sets up
 * subsections for plugins that used the PluginConfigModel object.
 * 
 * Moved from ConfigView
 * 
 * @author TuxPaper
 *
 */
public class ConfigSectionPlugins implements UISWTConfigSection {
	private final static String HEADER_PREFIX = "ConfigView.pluginlist.column.";

	private final static String[] COLUMN_HEADERS = { "loadAtStartup", "type",
			"name", "version", "directory", "unloadable" };

	private final static int[] COLUMN_SIZES = { 110, 50, 150, 75, 100, 50 };

	private final static int[] COLUMN_ALIGNS = { SWT.CENTER, SWT.LEFT, SWT.LEFT,
			SWT.RIGHT, SWT.LEFT, SWT.CENTER};

	private ConfigView configView;

	private AzureusCore azureusCore;

	FilterComparator comparator;
	
	List pluginIFs;
	
	class FilterComparator implements Comparator {
		boolean ascending = true;

		static final int FIELD_LOAD = 0;

		static final int FIELD_TYPE = 1;

		static final int FIELD_NAME = 2;

		static final int FIELD_VERSION = 3;

		static final int FIELD_DIRECTORY = 4;
		
		static final int FIELD_UNLOADABLE = 5;

		int field = FIELD_NAME;

		String sUserPluginDir;

		String sAppPluginDir;

		public FilterComparator() {
			String sep = System.getProperty("file.separator");

			sUserPluginDir = FileUtil.getUserFile("plugins").toString();
			if (!sUserPluginDir.endsWith(sep))
				sUserPluginDir += sep;

			sAppPluginDir = FileUtil.getApplicationFile("plugins").toString();
			if (!sAppPluginDir.endsWith(sep))
				sAppPluginDir += sep;
		}

		public int compare(Object arg0, Object arg1) {
			PluginInterface if0 = (PluginInterface) arg0;
			PluginInterfaceImpl if1 = (PluginInterfaceImpl) arg1;
			int result = 0;

			switch (field) {
				case FIELD_LOAD: {
					boolean b0 = COConfigurationManager.getBooleanParameter("PluginInfo."
							+ if0.getPluginID() + ".enabled", true);
					boolean b1 = COConfigurationManager.getBooleanParameter("PluginInfo."
							+ if1.getPluginID() + ".enabled", true);
					result = (b0 == b1 ? 0 : (b0 ? 1 : -1));
					break;
				}

				case FIELD_TYPE:
				case FIELD_DIRECTORY: {
					result = getFieldValue(field, if0).compareToIgnoreCase(
							getFieldValue(field, if1));
					break;
				}

				case FIELD_VERSION: { // XXX Not really right..
					String s0 = if0.getPluginVersion();
					String s1 = if1.getPluginVersion();
					if (s0 == null)
						s0 = "";
					if (s1 == null)
						s1 = "";
					result = s0.compareToIgnoreCase(s1);
					break;
				}
				
				case FIELD_UNLOADABLE: {
					boolean b0 = if0.isUnloadable();
					boolean b1 = if1.isUnloadable();
					result = (b0 == b1 ? 0 : (b0 ? 1 : -1));
					break;
				}
			}

			if (result == 0)
				result = if0.getPluginName().compareToIgnoreCase(if1.getPluginName());

			if (!ascending)
				result *= -1;

			return result;
		}

		public boolean setField(int newField) {
			if (field == newField)
				ascending = !ascending;
			else
				ascending = true;
			field = newField;
			return ascending;
		}

		public String getFieldValue(int iField, PluginInterface pluginIF) {
			switch (iField) {
				case FIELD_LOAD: {
					return pluginIF.getPluginID();
				}

				case FIELD_DIRECTORY: {
					String sDirName = pluginIF.getPluginDirectoryName();

					if (sDirName.length() > sUserPluginDir.length()
							&& sDirName.substring(0, sUserPluginDir.length()).equals(
									sUserPluginDir)) {
						return sDirName.substring(sUserPluginDir.length());

					} else if (sDirName.length() > sAppPluginDir.length()
							&& sDirName.substring(0, sAppPluginDir.length()).equals(
									sAppPluginDir)) {
						return sDirName.substring(sAppPluginDir.length());
					}
					return sDirName;
				}

				case FIELD_NAME: {
					return pluginIF.getPluginName();
				}

				case FIELD_TYPE: {
					String sDirName = pluginIF.getPluginDirectoryName();
					String sKey;

					if (sDirName.length() > sUserPluginDir.length()
							&& sDirName.substring(0, sUserPluginDir.length()).equals(
									sUserPluginDir)) {
						sKey = "perUser";

					} else if (sDirName.length() > sAppPluginDir.length()
							&& sDirName.substring(0, sAppPluginDir.length()).equals(
									sAppPluginDir)) {
						sKey = "shared";
					} else  {
						sKey = "builtIn";
					}
				
					return MessageText.getString(HEADER_PREFIX + "type." + sKey);
				}

				case FIELD_VERSION: {
					return pluginIF.getPluginVersion();
				}
				
				case FIELD_UNLOADABLE: {
					return MessageText.getString("Button."
							+ (pluginIF.isUnloadable() ? "yes" : "no"));
				}
			} // switch

			return "";
		}
	}

	/**
	 * Initialize
	 * @param _configView
	 */
	public ConfigSectionPlugins(ConfigView _configView, AzureusCore _azureusCore) {
		configView = _configView;
		azureusCore = _azureusCore;
		comparator = new FilterComparator();
	}

	public String configSectionGetParentSection() {
		return ConfigSection.SECTION_ROOT;
	}

	/* Name of section will be pulled from 
	 * ConfigView.section.<i>configSectionGetName()</i>
	 */
	public String configSectionGetName() {
		return ConfigSection.SECTION_PLUGINS;
	}

	public void configSectionSave() {
	}

	public void configSectionDelete() {
	}

	public Composite configSectionCreate(final Composite parent) {
		GridLayout layout;
		GridData gridData;

		Label label;

		Composite infoGroup = new Composite(parent, SWT.NULL);
		gridData = new GridData(GridData.VERTICAL_ALIGN_FILL
				| GridData.HORIZONTAL_ALIGN_FILL);
		infoGroup.setLayoutData(gridData);
		layout = new GridLayout();
		layout.numColumns = 1;
		layout.marginWidth = 0;
		layout.marginHeight = 0;
		infoGroup.setLayout(layout);

		infoGroup.setLayout(new GridLayout());
		if (SWT.getVersion() < 3105) { // screws up scrolling on 3.2M2
			infoGroup.addControlListener(new Utils.LabelWrapControlListener());
		}

		String sep = System.getProperty("file.separator");

		File fUserPluginDir = FileUtil.getUserFile("plugins");
		
		String sUserPluginDir;
		
		try{
			sUserPluginDir = fUserPluginDir.getCanonicalPath();
		}catch( Throwable e ){
			sUserPluginDir = fUserPluginDir.toString();
		}
		
		if (!sUserPluginDir.endsWith(sep)) {
			sUserPluginDir += sep;
		}

		File fAppPluginDir = FileUtil.getApplicationFile("plugins");