/**************************************************************************** ** ** This file is part of yFiles-2.10. ** ** yWorks proprietary/confidential. Use is subject to license terms. ** ** Redistribution of this file or of an unauthorized byte-code version ** of this file is strictly forbidden. ** ** Copyright (c) 2000-2013 by yWorks GmbH, Vor dem Kreuzberg 28, ** 72070 Tuebingen, Germany. All rights reserved. ** ***************************************************************************/ package tutorial.editor; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.JToolBar; import y.base.Graph; import y.base.Node; import y.base.NodeCursor; import y.base.NodeMap; import y.view.Arrow; import y.view.EditMode; import y.view.Graph2D; import y.view.Graph2DClipboard; import y.view.Graph2DView; import y.view.Graph2DViewActions; import y.view.Graph2DViewMouseWheelZoomListener; import y.view.LineType; import y.view.NodeRealizer; public class Clipboard1 { JFrame frame; /** The yFiles view component that displays (and holds) the graph. */ Graph2DView view; /** A customized subclass of the yFiles graph type. */ CustomGraph2D graph; /** The yFiles view mode that handles editing. */ EditMode editMode; /** The yFiles class that provides clipboard support. */ Graph2DClipboard clipboard; public Clipboard1(Dimension size, String title) { view = createGraph2DView(); graph = (CustomGraph2D)view.getGraph2D(); frame = createApplicationFrame(size, title, view); configureDefaultRealizers(graph); } public Clipboard1() { this(new Dimension(600, 300), ""); frame.setTitle(getClass().getName()); } private Graph2DView createGraph2DView() { Graph2DView view = new Graph2DView(new CustomGraph2D()); // Add a mouse wheel listener to zoom in and out of the view. new Graph2DViewMouseWheelZoomListener().addToCanvas(view); // Add the central view mode for an editor type application. editMode = new EditMode() { protected String getNodeTip(Node node) { // Retrieve the node's additional data. return "Data:
" + getCustomGraph().getCustomText(node) + ""; } }; editMode.showNodeTips(true); view.addViewMode(editMode); // "Install" keyboard support. new Graph2DViewActions(view).install(); return view; } /** Creates a JFrame that will show the demo graph. */ private JFrame createApplicationFrame(Dimension size, String title, JComponent view) { JPanel panel = new JPanel(new BorderLayout()); panel.setPreferredSize(size); // Add the given view to the panel. panel.add(view, BorderLayout.CENTER); // Add a toolbar with some actions to the panel, too. panel.add(createToolBar(), BorderLayout.NORTH); JFrame frame = new JFrame(title); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getRootPane().setContentPane(panel); frame.pack(); frame.setLocationRelativeTo(null); return frame; } protected void configureDefaultRealizers(Graph2D graph) { // Add an arrowhead decoration to the target side of the edges. graph.getDefaultEdgeRealizer().setTargetArrow(Arrow.STANDARD); // Set the node size and some other graphical properties. NodeRealizer defaultNodeRealizer = graph.getDefaultNodeRealizer(); defaultNodeRealizer.setSize(80, 30); defaultNodeRealizer.setFillColor(Color.ORANGE); defaultNodeRealizer.setLineType(LineType.DASHED_1); } /** Creates a toolbar for this demo. */ protected JToolBar createToolBar() { JToolBar toolbar = new JToolBar(); toolbar.add(new FitContent(getView())); toolbar.add(new Zoom(getView(), 1.25)); toolbar.add(new Zoom(getView(), 0.8)); toolbar.addSeparator(); // Adding clipboard actions (Cut, Copy, Paste) to the tool bar. toolbar.add(getClipboardSupport().getCutAction()); toolbar.add(getClipboardSupport().getCopyAction()); toolbar.add(getClipboardSupport().getPasteAction()); toolbar.addSeparator(); // Add text field. final JTextField textField = new JTextField(20); textField.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { CustomGraph2D graph = getCustomGraph(); NodeCursor nc = graph.selectedNodes(); for (; nc.ok(); nc.next()) { // Set the entered text as the node's additional data. graph.setCustomText(nc.node(), textField.getText()); } textField.selectAll(); graph.updateViews(); } }); toolbar.add(textField); return toolbar; } public void show() { frame.setVisible(true); } public Graph2DView getView() { return view; } public CustomGraph2D getCustomGraph() { return graph; } /** Returns the clipboard support for this application. */ public Graph2DClipboard getClipboardSupport() { if (clipboard == null) { clipboard = new Graph2DClipboard(view); } return clipboard; } /** Action that fits the content nicely inside the view. */ protected static class FitContent extends AbstractAction { Graph2DView view; public FitContent(Graph2DView view) { super("Fit Content"); this.view = view; this.putValue(Action.SHORT_DESCRIPTION, "Fit Content"); } public void actionPerformed(ActionEvent e) { view.fitContent(); view.updateView(); } } /** Action that applies a specified zoom level to the given view. */ protected static class Zoom extends AbstractAction { Graph2DView view; double factor; public Zoom(Graph2DView view, double factor) { super("Zoom " + (factor > 1.0 ? "In" : "Out")); this.view = view; this.factor = factor; this.putValue(Action.SHORT_DESCRIPTION, "Zoom " + (factor > 1.0 ? "In" : "Out")); } public void actionPerformed(ActionEvent e) { view.setZoom(view.getZoom() * factor); // Adjusts the size of the view's world rectangle. The world rectangle // defines the region of the canvas that is accessible by using the // scrollbars of the view. Rectangle box = view.getGraph2D().getBoundingBox(); view.setWorldRect(box.x - 20, box.y - 20, box.width + 40, box.height + 40); view.updateView(); } } /** * A customized Graph2D subclass that conveniently enables storing and retrieving * custom data associated with the nodes in the graph. */ public class CustomGraph2D extends Graph2D { NodeMap customTextMap; /** * Instantiates a new CustomGraph2D. * The instance conveniently handles additional data for nodes. */ public CustomGraph2D() { init(); } /** Returns a new CustomGraph2D instance. */ public Graph createGraph() { return new CustomGraph2D(); } /** Initializes the data store for the additional data. */ protected void init() { customTextMap = this.createNodeMap(); } /** Sets the given text as the additional data for the given node. */ public void setCustomText(Node node, String text) { customTextMap.set(node, text); } /** Gets the text (i.e., the additional data) stored for the given node. */ public String getCustomText(Node node) { return (String)customTextMap.get(node); } } public static void main(String[] args) { Clipboard1 sge = new Clipboard1(new Dimension(600, 300), "Clipboard"); sge.show(); } }