swing/editor/EditorActions.java

/*
 * $Id: EditorActions.java,v 1.6 2009/12/08 19:52:50 gaudenz Exp $
 * Copyright (c) 2001-2009, JGraph Ltd
 *
 * All rights reserved.
 *
 * See LICENSE file for license details. If you are unable to locate
 * this file please contact info (at) jgraph (dot) com.
 */
package com.mxgraph.examples.swing.editor;

import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.lang.reflect.Method;
import java.net.ProxySelector;
import java.net.URL;
import java.net.URLConnection;

import javax.imageio.ImageIO;
import javax.swing.AbstractAction;
import javax.swing.ImageIcon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JColorChooser;
import javax.swing.JEditorPane;
import javax.swing.JOptionPane;
import javax.swing.JSplitPane;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.commons.codec.binary.Hex;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.InputStreamBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.ProxySelectorRoutePlanner;
import org.w3c.dom.Document;

import com.mxgraph.analysis.mxDistanceCostFunction;
import com.mxgraph.analysis.mxGraphAnalysis;
import com.mxgraph.io.mxCodec;
import com.mxgraph.model.mxCell;
import com.mxgraph.model.mxIGraphModel;
import com.mxgraph.swing.mxGraphComponent;
import com.mxgraph.swing.mxGraphOutline;
import com.mxgraph.swing.handler.mxConnectionHandler;
import com.mxgraph.swing.util.mxGraphActions;
import com.mxgraph.swing.view.mxCellEditor;
import com.mxgraph.util.mxCellRenderer;
import com.mxgraph.util.mxConstants;
import com.mxgraph.util.mxResources;
import com.mxgraph.util.mxUtils;
import com.mxgraph.view.mxGraph;

/**
 * @author Administrator
 *
 */
public class EditorActions {

	/**
	 *
	 * @param e
	 * @return Returns the graph for the given action event.
	 */
	public static final BasicGraphEditor getEditor(ActionEvent e) {
		if (e.getSource() instanceof Component) {
			Component component = (Component) e.getSource();

			while (component != null && !(component instanceof BasicGraphEditor)) {
				component = component.getParent();
			}

			return (BasicGraphEditor) component;
		}

		return null;
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleRulersItem extends JCheckBoxMenuItem {
		/**
		 *
		 */
		public ToggleRulersItem(final BasicGraphEditor editor, String name) {
			super(name);
			setSelected(editor.getGraphComponent().getColumnHeader() != null);

			addActionListener(new ActionListener() {
				/**
				 *
				 */
				public void actionPerformed(ActionEvent e) {
					mxGraphComponent graphComponent = editor
							.getGraphComponent();

					if (graphComponent.getColumnHeader() != null) {
						graphComponent.setColumnHeader(null);
						graphComponent.setRowHeader(null);
					} else {
						graphComponent.setColumnHeaderView(new EditorRuler(
								graphComponent,
								EditorRuler.ORIENTATION_HORIZONTAL));
						graphComponent.setRowHeaderView(new EditorRuler(
								graphComponent,
								EditorRuler.ORIENTATION_VERTICAL));
					}
				}
			});
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleGridItem extends JCheckBoxMenuItem {
		/**
		 *
		 */
		public ToggleGridItem(final BasicGraphEditor editor, String name) {
			super(name);
			setSelected(true);

			addActionListener(new ActionListener() {
				/**
				 *
				 */
				public void actionPerformed(ActionEvent e) {
					mxGraphComponent graphComponent = editor
							.getGraphComponent();
					mxGraph graph = graphComponent.getGraph();
					boolean enabled = !graph.isGridEnabled();

					graph.setGridEnabled(enabled);
					graphComponent.setGridVisible(enabled);
					graphComponent.repaint();
					setSelected(enabled);
				}
			});
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleOutlineItem extends JCheckBoxMenuItem {
		/**
		 *
		 */
		public ToggleOutlineItem(final BasicGraphEditor editor, String name) {
			super(name);
			setSelected(true);

			addActionListener(new ActionListener() {
				/**
				 *
				 */
				public void actionPerformed(ActionEvent e) {
					final mxGraphOutline outline = editor.getGraphOutline();
					outline.setVisible(!outline.isVisible());
					outline.revalidate();

					SwingUtilities.invokeLater(new Runnable() {
						/*
						 * (non-Javadoc)
						 *
						 * @see java.lang.Runnable#run()
						 */
						public void run() {
							if (outline.getParent() instanceof JSplitPane) {
								if (outline.isVisible()) {
									((JSplitPane) outline.getParent())
											.setDividerLocation(editor
													.getHeight() - 300);
									((JSplitPane) outline.getParent())
											.setDividerSize(6);
								} else {
									((JSplitPane) outline.getParent())
											.setDividerSize(0);
								}
							}
						}
					});
				}
			});
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ExitAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			BasicGraphEditor editor = getEditor(e);

			if (editor != null) {
				editor.exit();
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class StylesheetAction extends AbstractAction {

		/**
		 *
		 */
		protected String stylesheet;

		/**
		 *
		 */
		public StylesheetAction(String stylesheet) {
			this.stylesheet = stylesheet;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxGraph graph = graphComponent.getGraph();
				mxCodec codec = new mxCodec();
				Document doc = mxUtils.loadDocument(EditorActions.class
						.getResource(stylesheet).toString());

				if (doc != null) {
					codec.decode(doc.getDocumentElement(), graph
							.getStylesheet());
					graph.refresh();
				}
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ZoomPolicyAction extends AbstractAction {
		/**
		 *
		 */
		protected int zoomPolicy;

		/**
		 *
		 */
		public ZoomPolicyAction(int zoomPolicy) {
			this.zoomPolicy = zoomPolicy;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				graphComponent.setPageVisible(true);
				graphComponent.setZoomPolicy(zoomPolicy);
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class GridStyleAction extends AbstractAction {
		/**
		 *
		 */
		protected int style;

		/**
		 *
		 */
		public GridStyleAction(int style) {
			this.style = style;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				graphComponent.setGridStyle(style);
				graphComponent.repaint();
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class GridColorAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				Color newColor = JColorChooser.showDialog(graphComponent,
						mxResources.get("gridColor"), graphComponent
								.getGridColor());

				if (newColor != null) {
					graphComponent.setGridColor(newColor);
					graphComponent.repaint();
				}
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ScaleAction extends AbstractAction {

		/**
		 *
		 */
		protected double scale;

		/**
		 *
		 */
		public ScaleAction(double scale) {
			this.scale = scale;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				double scale = this.scale;

				if (scale == 0) {
					String value = (String) JOptionPane.showInputDialog(
							graphComponent, mxResources.get("value"),
							mxResources.get("scale") + " (%)",
							JOptionPane.PLAIN_MESSAGE, null, null, "");

					if (value != null) {
						scale = Double.parseDouble(value.replace("%", "")) / 100;
					}
				}

				if (scale > 0) {
					graphComponent.zoomTo(scale, graphComponent.isCenterZoom());
				}
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class PageSetupAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				PrinterJob pj = PrinterJob.getPrinterJob();
				PageFormat format = pj.pageDialog(graphComponent
						.getPageFormat());

				if (format != null) {
					graphComponent.setPageFormat(format);
					graphComponent.zoomAndCenter();
				}
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class PrintAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				PrinterJob pj = PrinterJob.getPrinterJob();

				if (pj.printDialog()) {
					PageFormat pf = graphComponent.getPageFormat();
					Paper paper = new Paper();
					double margin = 36;
					paper.setImageableArea(margin, margin, paper.getWidth()
							- margin * 2, paper.getHeight() - margin * 2);
					pf.setPaper(paper);
					pj.setPrintable(graphComponent, pf);

					try {
						pj.print();
					} catch (PrinterException e2) {
						System.out.println(e2);
					}
				}
			}
		}

	}

	private static final String DIAGRAM_EXTENSION = ".mxe";

	private interface ProgressListener {

		void onProgress(int progress);
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class SaveAction extends AbstractAction {


		/**
		 *
		 */
		protected boolean showDialog;

		/**
		 *
		 */
		public SaveAction(boolean showDialog) {
			this.showDialog = showDialog;
		}

		private HttpResponse post(
				final BasicGraphEditor editor,
				final byte[] content,
				String fileName,
				String mimeType,
				ProxySelector proxySelector,
				final int offset,
				final int scale,
				final ProgressListener progressListener) throws Exception {

			String dokuHost = editor.getConfig().getDokuHost();
			if (dokuHost.endsWith(":80")) {
				dokuHost = dokuHost.substring(0, dokuHost.length()-3);
			}
			StringBuilder saveUrl = new StringBuilder(dokuHost);
			saveUrl.append(new String(Hex.decodeHex(editor.getConfig().getDokuBase().toCharArray())));
			saveUrl.append("lib/exe/mediamanager.php?");
//		            saveUrl.append("&"+editor.getConfig().getSessionName()+"="+editor.getConfig().getSessionId());
//		            saveUrl.append("&ns="+new String(URLCodec.encodeUrl(null, namespace.getBytes())));
//		            saveUrl.append("&sectok="+editor.getConfig().getSectok());
//		            saveUrl.append("&authtok="+editor.getConfig().getAuthtok());
//		            saveUrl.append("&ow=1");
			System.out.println(saveUrl);
	        HttpPost httppost = new HttpPost(saveUrl.toString());

	        if (!httppost.containsHeader("Cookie")) {
	        	httppost.setHeader("Cookie", editor.getConfig().getCookies());
	        }

	        httppost.setHeader("Pragma", "No-cache");

		    MultipartEntity reqEntity = new MultipartEntity();

		    reqEntity.addPart("sectok", new StringBody(editor.getConfig().getSectok()));
		    reqEntity.addPart("ow", new StringBody("1"));

		    reqEntity.addPart("Filename", new StringBody(fileName));

            String namespace = editor.getConfig().getName();
            int idx = namespace.lastIndexOf(":");
            if (idx==-1) {
            	namespace=":";
            } else {
            	namespace=":"+namespace.substring(0, idx);
            }

		    if (namespace!=null) {
			    reqEntity.addPart("ns", new StringBody(namespace));
		    }

		    final long contentSize = content.length;

		    InputStream countingFilter = new FilterInputStream(new ByteArrayInputStream(content)) {

		    	private long counter;

		    	private int inc(int incVal) {
		    		if (incVal!=-1) {
		    			counter+=incVal;
		    			progress();
		    		}
		    		return incVal;
		    	}

		    	private long inc(long incVal) {
		    		if (incVal!=-1) {
		    			counter+=incVal;
		    			progress();
		    		}
		    		return incVal;
		    	}

		    	private void progress() {
		    		System.out.println("-- Progress --> ["+Thread.currentThread()+"] "+counter+"/"+contentSize);
		    		progressListener.onProgress((int) (offset + scale*counter/contentSize));
		    	}

		    	@Override
		    	public int read() throws IOException {
		    		return inc(super.read());
		    	}

		    	@Override
		    	public int read(byte[] b) throws IOException {
		    		return inc(super.read(b));
		    	}

		    	@Override
		    	public int read(byte[] b, int off, int len) throws IOException {
		    		return inc(super.read(b, off, len));
		    	}

		    	@Override
		    	public long skip(long n) throws IOException {
		    		return inc(super.skip(n));
		    	}

		    	@Override
		    	public void close() throws IOException {
		    		editor.status("Upload finished");
		    		super.close();
		    	}
		    };

			InputStreamBody bin = new InputStreamBody(countingFilter, mimeType, fileName) {

		    	@Override
		    	public long getContentLength() {
		    		return content.length;
		    	}
		    };

		    reqEntity.addPart("Filedata", bin);

		    httppost.setEntity(reqEntity);

		    DefaultHttpClient httpClient = new DefaultHttpClient();
		    if (proxySelector!=null) {
		    	ProxySelectorRoutePlanner routePlanner = new ProxySelectorRoutePlanner(
			        httpClient.getConnectionManager().getSchemeRegistry(),
			        proxySelector);
		    	httpClient.setRoutePlanner(routePlanner);
		    }
//					HttpHost proxy = new HttpHost("localhost", 8888);
//					httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
			return httpClient.execute(httppost);
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			final BasicGraphEditor editor = getEditor(e);

			if (editor != null) {
				final mxGraphComponent graphComponent = editor.getGraphComponent();
				mxGraph graph = graphComponent.getGraph();

				try {
					int idx = editor.getConfig().getName().lastIndexOf(":");

					final String dName = idx==-1 ? editor.getConfig().getName() : editor.getConfig().getName().substring(idx+1);

					// Saving to GIF
					Color bg = graphComponent.getBackground(); // Always transparent background.

					// Saving image first
					final BufferedImage image = mxCellRenderer.createBufferedImage(
							graph, null, graph.getView().getScale(), bg,
							graphComponent.isAntiAlias(), null,
							graphComponent.getCanvas());

					if (image != null) {
						// Saving image
						final ByteArrayOutputStream iBaos = new ByteArrayOutputStream();
						ImageIO.write(image, editor.getConfig().getImageFormat(), iBaos);
						iBaos.close();

						// Saving to XML
						mxCodec codec = new mxCodec();
						String xml = mxUtils.getXml(codec.encode(graph.getModel()));
						final ByteArrayOutputStream baos = new ByteArrayOutputStream();
						OutputStreamWriter osw = new OutputStreamWriter(baos);
						osw.write(xml+"\n");
						osw.close();

						// Uploading
						SwingWorker<Boolean, Long> task = new SwingWorker<Boolean, Long>() {

							@Override
							protected Boolean doInBackground() throws Exception {

								HttpResponse iResponse = post(
										editor,
										iBaos.toByteArray(),
										dName+"."+editor.getConfig().getImageFormat(),
										"application/octet-stream",
										editor.getConfig().getProxySelector(),
										0,
										50,
										new ProgressListener() {

											@Override
											public void onProgress(int progress) {
												setProgress(progress);
											}

										});
								if (iResponse.getStatusLine().getStatusCode()==HttpStatus.SC_OK) {

									HttpResponse response = post(
											editor,
											baos.toByteArray(),
											dName+DIAGRAM_EXTENSION,
											"application/octet-stream",
											editor.getConfig().getProxySelector(),
											0,
											50,
											new ProgressListener() {

												@Override
												public void onProgress(int progress) {
													setProgress(progress);
												}

											});

									System.out.println(response.getStatusLine());
								    if (response.getStatusLine().getStatusCode()==HttpStatus.SC_OK) {
								    	editor.setModified(false);
								    	return true;
								    } else {
								    	errorMessage = response.getStatusLine();
								    	errorTitle = mxResources.get("errorSaveDiagram");
								    	return false;
								    }
								} else {
							    	errorMessage = iResponse.getStatusLine();
							    	errorTitle = mxResources.get("errorSaveImage");
							    	return false;
								}
							}

							private Object errorMessage;
							private String errorTitle;

							protected void done() {
								if (errorMessage==null) {
									JOptionPane.showMessageDialog(graphComponent, mxResources.get("diagramSaved"));
								} else {
							    	JOptionPane.showMessageDialog(
							    			graphComponent,
											errorMessage,
											errorTitle,
											JOptionPane.ERROR_MESSAGE);
								}

							};

						};
						task.addPropertyChangeListener(new PropertyChangeListener() {

						    public void propertyChange(PropertyChangeEvent evt) {
						        if ("progress" == evt.getPropertyName() ) {
						            int progress = (Integer) evt.getNewValue();
						            editor.status("Uploaded "+progress+"%");
						        }

						    }
						});
						task.execute();
					} else {
						JOptionPane.showMessageDialog(graphComponent, mxResources.get("noImageData"));
					}

				} catch (Exception ex) {
					ex.printStackTrace();
					JOptionPane.showMessageDialog(graphComponent,
							ex.toString(), mxResources.get("error"),
							JOptionPane.ERROR_MESSAGE);
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class SelectShortestPathAction extends AbstractAction {

		/**
		 *
		 */
		protected boolean directed;

		/**
		 *
		 */
		public SelectShortestPathAction(boolean directed) {
			this.directed = directed;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxGraph graph = graphComponent.getGraph();
				mxIGraphModel model = graph.getModel();

				Object source = null;
				Object target = null;

				Object[] cells = graph.getSelectionCells();

				for (int i = 0; i < cells.length; i++) {
					if (model.isVertex(cells[i])) {
						if (source == null) {
							source = cells[i];
						} else if (target == null) {
							target = cells[i];
						}
					}

					if (source != null && target != null) {
						break;
					}
				}

				if (source != null && target != null) {
					int steps = graph.getChildEdges(graph.getDefaultParent()).length;
					Object[] path = mxGraphAnalysis.getInstance()
							.getShortestPath(graph, source, target,
									new mxDistanceCostFunction(), steps,
									directed);
					graph.setSelectionCells(path);
				} else {
					JOptionPane.showMessageDialog(graphComponent, mxResources
							.get("noSourceAndTargetSelected"));
				}
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class SelectSpanningTreeAction extends AbstractAction {

		/**
		 *
		 */
		protected boolean directed;

		/**
		 *
		 */
		public SelectSpanningTreeAction(boolean directed) {
			this.directed = directed;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxGraph graph = graphComponent.getGraph();
				mxIGraphModel model = graph.getModel();

				Object parent = graph.getDefaultParent();
				Object[] cells = graph.getSelectionCells();

				for (int i = 0; i < cells.length; i++) {
					if (model.getChildCount(cells[i]) > 0) {
						parent = cells[i];
						break;
					}
				}

				Object[] v = graph.getChildVertices(parent);
				Object[] mst = mxGraphAnalysis.getInstance()
						.getMinimumSpanningTree(graph, v,
								new mxDistanceCostFunction(), directed);
				graph.setSelectionCells(mst);
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleDirtyAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				graphComponent.showDirtyRectangle = !graphComponent.showDirtyRectangle;
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleImagePreviewAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				graphComponent.getGraphHandler().setImagePreview(
						!graphComponent.getGraphHandler().isImagePreview());
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleConnectModeAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxConnectionHandler handler = graphComponent
						.getConnectionHandler();
				handler.setHandleEnabled(!handler.isHandleEnabled());
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleCreateTargetItem extends JCheckBoxMenuItem {
		/**
		 *
		 */
		public ToggleCreateTargetItem(final BasicGraphEditor editor, String name) {
			super(name);
			setSelected(true);

			addActionListener(new ActionListener() {
				/**
				 *
				 */
				public void actionPerformed(ActionEvent e) {
					mxGraphComponent graphComponent = editor
							.getGraphComponent();

					if (graphComponent != null) {
						mxConnectionHandler handler = graphComponent
								.getConnectionHandler();
						handler.setCreateTarget(!handler.isCreateTarget());
						setSelected(handler.isCreateTarget());
					}
				}
			});
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class PromptPropertyAction extends AbstractAction {
		/**
		 *
		 */
		protected Object target;

		/**
		 *
		 */
		protected String fieldname, message;

		/**
		 *
		 */
		public PromptPropertyAction(Object target, String message) {
			this(target, message, message);
		}

		/**
		 *
		 */
		public PromptPropertyAction(Object target, String message,
				String fieldname) {
			this.target = target;
			this.message = message;
			this.fieldname = fieldname;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof Component) {
				try {
					Method getter = target.getClass().getMethod(
							"get" + fieldname);
					Object current = getter.invoke(target);

					// TODO: Support other atomic types
					if (current instanceof Integer) {
						Method setter = target.getClass().getMethod(
								"set" + fieldname, new Class[] { int.class });

						String value = (String) JOptionPane.showInputDialog(
								(Component) e.getSource(), "Value", message,
								JOptionPane.PLAIN_MESSAGE, null, null, current);

						if (value != null) {
							setter.invoke(target, Integer.parseInt(value));
						}
					}
				} catch (Exception ex) {
					ex.printStackTrace();
				}
			}

			// Repaints the graph component
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				graphComponent.repaint();
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class TogglePropertyItem extends JCheckBoxMenuItem {

		/**
		 *
		 */
		public TogglePropertyItem(Object target, String name, String fieldname) {
			this(target, name, fieldname, false);
		}

		/**
		 *
		 */
		public TogglePropertyItem(Object target, String name, String fieldname,
				boolean refresh) {
			this(target, name, fieldname, refresh, null);
		}

		/**
		 *
		 */
		public TogglePropertyItem(final Object target, String name,
				final String fieldname, final boolean refresh,
				ActionListener listener) {
			super(name);

			// Since action listeners are processed last to first we add the
			// given
			// listener here which means it will be processed after the one
			// below
			if (listener != null) {
				addActionListener(listener);
			}

			addActionListener(new ActionListener() {
				/**
				 *
				 */
				public void actionPerformed(ActionEvent e) {
					execute(target, fieldname, refresh);
				}
			});

			PropertyChangeListener propertyChangeListener = new PropertyChangeListener() {

				/*
				 * (non-Javadoc)
				 *
				 * @see
				 * java.beans.PropertyChangeListener#propertyChange(java.beans
				 * .PropertyChangeEvent)
				 */
				public void propertyChange(PropertyChangeEvent evt) {
					if (evt.getPropertyName().equalsIgnoreCase(fieldname)) {
						update(target, fieldname);
					}
				}

			};

			if (target instanceof mxGraphComponent) {
				((mxGraphComponent) target)
						.addPropertyChangeListener(propertyChangeListener);
			} else if (target instanceof mxGraph) {
				((mxGraph) target)
						.addPropertyChangeListener(propertyChangeListener);
			}

			update(target, fieldname);
		}

		/**
		 *
		 */
		public void update(Object target, String fieldname) {
			try {
				Method getter = target.getClass().getMethod("is" + fieldname);
				Object current = getter.invoke(target);

				if (current instanceof Boolean) {
					setSelected(((Boolean) current).booleanValue());
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

		/**
		 *
		 */
		public void execute(Object target, String fieldname, boolean refresh) {
			try {
				Method getter = target.getClass().getMethod("is" + fieldname);
				Method setter = target.getClass().getMethod("set" + fieldname,
						new Class[] { boolean.class });

				Object current = getter.invoke(target);

				if (current instanceof Boolean) {
					boolean value = !((Boolean) current).booleanValue();
					setter.invoke(target, value);
					setSelected(value);
				}

				if (refresh) {
					mxGraph graph = null;

					if (target instanceof mxGraph) {
						graph = (mxGraph) target;
					} else if (target instanceof mxGraphComponent) {
						graph = ((mxGraphComponent) target).getGraph();
					}

					graph.refresh();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class HistoryAction extends AbstractAction {

		/**
		 *
		 */
		protected boolean undo;

		/**
		 *
		 */
		public HistoryAction(boolean undo) {
			this.undo = undo;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			BasicGraphEditor editor = getEditor(e);

			if (editor != null) {
				if (undo) {
					editor.getUndoManager().undo();
				} else {
					editor.getUndoManager().redo();
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class FontStyleAction extends AbstractAction {
		/**
		 *
		 */
		protected boolean bold;

		/**
		 *
		 */
		public FontStyleAction(boolean bold) {
			this.bold = bold;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				Component editorComponent = null;

				if (graphComponent.getCellEditor() instanceof mxCellEditor) {
					editorComponent = ((mxCellEditor) graphComponent
							.getCellEditor()).getEditor();
				}

				if (editorComponent instanceof JEditorPane) {
					JEditorPane editorPane = (JEditorPane) editorComponent;
					int start = editorPane.getSelectionStart();
					int ende = editorPane.getSelectionEnd();
					String text = editorPane.getSelectedText();

					if (text == null) {
						text = "";
					}

					try {
						HTMLEditorKit editorKit = new HTMLEditorKit();
						HTMLDocument document = (HTMLDocument) editorPane
								.getDocument();
						document.remove(start, (ende - start));
						editorKit.insertHTML(document, start, ((bold) ? "<b>"
								: "<i>")
								+ text + ((bold) ? "</b>" : "</i>"), 0, 0,
								(bold) ? HTML.Tag.B : HTML.Tag.I);
					} catch (Exception ex) {
						ex.printStackTrace();
					}

					editorPane.requestFocus();
					editorPane.select(start, ende);
				} else {
					mxIGraphModel model = graphComponent.getGraph().getModel();
					model.beginUpdate();
					try {
						graphComponent.stopEditing(false);
						graphComponent.getGraph().toggleCellStyleFlags(
								mxConstants.STYLE_FONTSTYLE,
								(bold) ? mxConstants.FONT_BOLD
										: mxConstants.FONT_ITALIC);
					} finally {
						model.endUpdate();
					}
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class WarningAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				Object[] cells = graphComponent.getGraph().getSelectionCells();

				if (cells != null && cells.length > 0) {
					String warning = JOptionPane.showInputDialog(mxResources
							.get("enterWarningMessage"));

					for (int i = 0; i < cells.length; i++) {
						graphComponent.setCellWarning(cells[i], warning);
					}
				} else {
					JOptionPane.showMessageDialog(graphComponent, mxResources
							.get("noCellSelected"));
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class NewAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			BasicGraphEditor editor = getEditor(e);

			if (editor != null) {
				if (!editor.isModified() || JOptionPane.showConfirmDialog(editor, mxResources.get("loseChanges")) == JOptionPane.YES_OPTION) {
					mxGraph graph = editor.getGraphComponent().getGraph();
					// Check modified flag and display save dialog
					mxCell root = new mxCell();
					root.insert(new mxCell());
					graph.getModel().setRoot(root);

					editor.setModified(false);
//					editor.setCurrentFile(null);
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class OpenAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			BasicGraphEditor editor = getEditor(e);

			if (editor != null) {
				if (!editor.isModified() || JOptionPane.showConfirmDialog(editor, mxResources.get("loseChanges")) == JOptionPane.YES_OPTION) {
					mxGraph graph = mxGraphActions.getGraph(e);

					if (graph != null && !editor.getConfig().isNew()) {
						try {
				            StringBuilder sourceUrl = new StringBuilder(editor.getConfig().getDokuHost()+new String(Hex.decodeHex(editor.getConfig().getDokuBase().toCharArray())));
				            sourceUrl.append("lib/exe/fetch.php?media=");
				            sourceUrl.append(editor.getConfig().getName());
				            sourceUrl.append(DIAGRAM_EXTENSION+"#"+Long.toString(System.currentTimeMillis(), Character.MAX_RADIX));
//				            sourceUrl.append("&"+editor.getConfig().getSessionName()+"="+editor.getConfig().getSessionId());
//				            sourceUrl.append("&sectok="+editor.getConfig().getSectok());
//				            sourceUrl.append("&authtok="+editor.getConfig().getAuthtok());

					        URL requestURL = new URL(sourceUrl.toString());
				            System.out.println(requestURL);
					        URLConnection conn = requestURL.openConnection();
					        conn.setRequestProperty("Cookie", editor.getConfig().getCookies());
					        conn.setRequestProperty("Pragma", "No-cache");

					        InputStream is = conn.getInputStream();

				            DocumentBuilderFactory documentbuilderfactory = DocumentBuilderFactory.newInstance();
				            DocumentBuilder documentbuilder = documentbuilderfactory.newDocumentBuilder();
				            Document document = documentbuilder.parse(is);

							mxCodec codec = new mxCodec(document);
							codec.decode(document.getDocumentElement(), graph.getModel());

							editor.setModified(false);
						} catch (Exception ex) {
					    	JOptionPane.showMessageDialog(
					    			editor.getGraphComponent(),
									ex.toString(),
									mxResources.get("errorLoadDiagram"),
									JOptionPane.ERROR_MESSAGE);
							ex.printStackTrace();
						}
					}
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ToggleAction extends AbstractAction {

		/**
		 *
		 */
		protected String key;

		/**
		 *
		 */
		protected boolean defaultValue;

		/**
		 *
		 * @param key
		 */
		public ToggleAction(String key) {
			this(key, false);
		}

		/**
		 *
		 * @param key
		 */
		public ToggleAction(String key, boolean defaultValue) {
			this.key = key;
			this.defaultValue = defaultValue;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null) {
				graph.toggleCellStyles(key, defaultValue);
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class SetLabelPositionAction extends AbstractAction {

		/**
		 *
		 */
		protected String labelPosition, alignment;

		/**
		 *
		 * @param key
		 */
		public SetLabelPositionAction(String labelPosition, String alignment) {
			this.labelPosition = labelPosition;
			this.alignment = alignment;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null && !graph.isSelectionEmpty()) {
				graph.getModel().beginUpdate();
				try {
					// Checks the orientation of the alignment to use the
					// correct constants
					if (labelPosition.equals(mxConstants.ALIGN_LEFT)
							|| labelPosition.equals(mxConstants.ALIGN_CENTER)
							|| labelPosition.equals(mxConstants.ALIGN_RIGHT)) {
						graph.setCellStyles(mxConstants.STYLE_LABEL_POSITION,
								labelPosition);
						graph.setCellStyles(mxConstants.STYLE_ALIGN, alignment);
					} else {
						graph.setCellStyles(
								mxConstants.STYLE_VERTICAL_LABEL_POSITION,
								labelPosition);
						graph.setCellStyles(mxConstants.STYLE_VERTICAL_ALIGN,
								alignment);
					}
				} finally {
					graph.getModel().endUpdate();
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class SetStyleAction extends AbstractAction {

		/**
		 *
		 */
		protected String value;

		/**
		 *
		 * @param key
		 */
		public SetStyleAction(String value) {
			this.value = value;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null && !graph.isSelectionEmpty()) {
				graph.setCellStyle(value);
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class KeyValueAction extends AbstractAction {

		/**
		 *
		 */
		protected String key, value;

		/**
		 *
		 * @param key
		 */
		public KeyValueAction(String key) {
			this(key, null);
		}

		/**
		 *
		 * @param key
		 */
		public KeyValueAction(String key, String value) {
			this.key = key;
			this.value = value;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null && !graph.isSelectionEmpty()) {
				graph.setCellStyles(key, value);
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class PromptValueAction extends AbstractAction {

		/**
		 *
		 */
		protected String key, message;

		/**
		 *
		 * @param key
		 */
		public PromptValueAction(String key, String message) {
			this.key = key;
			this.message = message;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof Component) {
				mxGraph graph = mxGraphActions.getGraph(e);

				if (graph != null && !graph.isSelectionEmpty()) {
					String value = (String) JOptionPane.showInputDialog(
							(Component) e.getSource(),
							mxResources.get("value"), message,
							JOptionPane.PLAIN_MESSAGE, null, null, "");

					if (value != null) {
						if (value.equals(mxConstants.NONE)) {
							value = null;
						}

						graph.setCellStyles(key, value);
					}
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class AlignCellsAction extends AbstractAction {

		/**
		 *
		 */
		protected String align;

		/**
		 *
		 * @param key
		 */
		public AlignCellsAction(String align) {
			this.align = align;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null && !graph.isSelectionEmpty()) {
				graph.alignCells(align);
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class AutosizeAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			mxGraph graph = mxGraphActions.getGraph(e);

			if (graph != null && !graph.isSelectionEmpty()) {
				graph.updateCellSize(graph.getSelectionCell());
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class ColorAction extends AbstractAction {

		/**
		 *
		 */
		protected String name, key;

		/**
		 *
		 * @param key
		 */
		public ColorAction(String name, String key) {
			this.name = name;
			this.key = key;
		}

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxGraph graph = graphComponent.getGraph();

				if (!graph.isSelectionEmpty()) {
					Color newColor = JColorChooser.showDialog(graphComponent,
							name, null);

					if (newColor != null) {
						graph.setCellStyles(key, mxUtils.hexString(newColor));
					}
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class BackgroundImageAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				String value = (String) JOptionPane.showInputDialog(
						graphComponent, mxResources.get("backgroundImage"),
						"URL", JOptionPane.PLAIN_MESSAGE, null, null,
						"http://www.callatecs.com/images/background2.JPG");

				if (value != null) {
					if (value.length() == 0) {
						graphComponent.setBackgroundImage(null);
					} else {
						graphComponent.setBackgroundImage(new ImageIcon(mxUtils
								.loadImage(value)));
					}

					// Forces a repaint of the outline
					graphComponent.getGraph().repaint();
				}
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class BackgroundAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				Color newColor = JColorChooser.showDialog(graphComponent,
						mxResources.get("background"), null);

				if (newColor != null) {
					graphComponent.getViewport().setOpaque(false);
					graphComponent.setBackground(newColor);
				}

				// Forces a repaint of the outline
				graphComponent.getGraph().repaint();
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class PageBackgroundAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				Color newColor = JColorChooser.showDialog(graphComponent,
						mxResources.get("pageBackground"), null);

				if (newColor != null) {
					graphComponent.setPageBackgroundColor(newColor);
				}

				// Forces a repaint of the component
				graphComponent.repaint();
			}
		}
	}

	/**
	 *
	 */
	@SuppressWarnings("serial")
	public static class StyleAction extends AbstractAction {

		/**
		 *
		 */
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() instanceof mxGraphComponent) {
				mxGraphComponent graphComponent = (mxGraphComponent) e
						.getSource();
				mxGraph graph = graphComponent.getGraph();
				String initial = graph.getModel().getStyle(
						graph.getSelectionCell());
				String value = (String) JOptionPane.showInputDialog(
						graphComponent, mxResources.get("style"), mxResources
								.get("style"), JOptionPane.PLAIN_MESSAGE, null,
						null, initial);

				if (value != null) {
					graph.setCellStyle(value);
				}
			}
		}
	}

}