Пример #1
0
  public JPanel demo(Graph g, final String label) {
    // create a new radial tree view
    final PhysioMapRadialGraphView gview =
        new PhysioMapRadialGraphView(settings, g, label, semsimmodel);
    Visualization vis = gview.getVisualization();

    // create a search panel for the tree map
    SearchQueryBinding sq =
        new SearchQueryBinding(
            (Table) vis.getGroup(treeNodes),
            label,
            (SearchTupleSet) vis.getGroup(Visualization.SEARCH_ITEMS));
    JSearchPanel search = sq.createSearchPanel();
    search.setShowResultCount(true);
    search.setBorder(BorderFactory.createEmptyBorder(5, 5, 4, 0));
    search.setFont(FontLib.getFont("Verdana", Font.PLAIN, 11));

    final JTextArea title = new JTextArea();
    title.setPreferredSize(new Dimension(450, 500));
    title.setMaximumSize(new Dimension(450, 500));
    title.setMinimumSize(new Dimension(450, 500));

    title.setAlignmentY(CENTER_ALIGNMENT);
    title.setLineWrap(true);
    title.setWrapStyleWord(true);
    title.setBorder(BorderFactory.createEmptyBorder(3, 0, 0, 0));
    title.setFont(FontLib.getFont("Verdana", Font.PLAIN, 11));

    gview.addControlListener(
        new ControlAdapter() {
          public void itemEntered(VisualItem item, MouseEvent e) {}

          public void itemExited(VisualItem item, MouseEvent e) {
            title.setText(null);
          }
        });

    Box searchbox = new Box(BoxLayout.X_AXIS);
    searchbox.add(Box.createHorizontalStrut(10));
    searchbox.add(search);
    searchbox.add(Box.createHorizontalStrut(3));

    JPanel panel = new JPanel(new BorderLayout());
    panel.add(searchbox, BorderLayout.NORTH);
    panel.add(gview, BorderLayout.CENTER);
    panel.add(Box.createGlue(), BorderLayout.SOUTH);

    Color BACKGROUND = Color.WHITE;
    Color FOREGROUND = Color.DARK_GRAY;
    UILib.setColor(panel, BACKGROUND, FOREGROUND);

    return panel;
  }
  public Congress(Table t) {
    super(new BorderLayout());

    // --------------------------------------------------------------------
    // STEP 1: setup the visualized data

    final Visualization vis = new Visualization();
    m_vis = vis;

    final String group = "by_state";

    // filter to show only candidates receiving more than $100,000
    Predicate p = (Predicate) ExpressionParser.parse("[" + TOTAL_RECEIPTS + "] >= 100000");
    VisualTable vt = vis.addTable(group, t, p);

    // add a new column containing a label string showing
    // candidate name, party, state, year, and total receipts
    vt.addColumn(
        "label",
        "CONCAT(CAP(Candidate), ' (', "
            + "CAP([Party Designation]), '-', [State Code], "
            + "') ', Year, ': $', FORMAT([Total Receipts],2))");

    // add calculation for senators
    vt.addColumn("Senate", "District <= 0");

    vis.setRendererFactory(
        new RendererFactory() {
          AbstractShapeRenderer sr = new ShapeRenderer();
          Renderer arY = new AxisRenderer(Constants.RIGHT, Constants.TOP);
          Renderer arX = new AxisRenderer(Constants.CENTER, Constants.FAR_BOTTOM);

          public Renderer getRenderer(VisualItem item) {
            return item.isInGroup("ylab") ? arY : item.isInGroup("xlab") ? arX : sr;
          }
        });

    // --------------------------------------------------------------------
    // STEP 2: create actions to process the visual data

    // set up dynamic queries, search set
    RangeQueryBinding receiptsQ = new RangeQueryBinding(vt, RECEIPTS);
    ListQueryBinding yearsQ = new ListQueryBinding(vt, "Year");
    SearchQueryBinding searchQ = new SearchQueryBinding(vt, "Candidate");

    // construct the filtering predicate
    AndPredicate filter = new AndPredicate(searchQ.getPredicate());
    filter.add(yearsQ.getPredicate());
    filter.add(receiptsQ.getPredicate());

    // set up the actions
    AxisLayout xaxis = new AxisLayout(group, "State Code", Constants.X_AXIS, VisiblePredicate.TRUE);
    AxisLayout yaxis = new AxisLayout(group, RECEIPTS, Constants.Y_AXIS, VisiblePredicate.TRUE);
    // yaxis.setScale(Constants.LOG_SCALE);
    yaxis.setRangeModel(receiptsQ.getModel());
    receiptsQ.getNumberModel().setValueRange(0, 65000000, 0, 65000000);

    xaxis.setLayoutBounds(m_dataB);
    yaxis.setLayoutBounds(m_dataB);

    AxisLabelLayout ylabels = new AxisLabelLayout("ylab", yaxis, m_ylabB);
    NumberFormat nf = NumberFormat.getCurrencyInstance();
    nf.setMaximumFractionDigits(0);
    ylabels.setNumberFormat(nf);

    AxisLabelLayout xlabels = new AxisLabelLayout("xlab", xaxis, m_xlabB, 15);
    vis.putAction("xlabels", xlabels);

    // dems = blue, reps = red, other = gray
    int[] palette =
        new int[] {
          ColorLib.rgb(150, 150, 255), ColorLib.rgb(255, 150, 150), ColorLib.rgb(180, 180, 180)
        };
    DataColorAction color =
        new DataColorAction(group, "Party", Constants.ORDINAL, VisualItem.STROKECOLOR, palette);

    int[] shapes = new int[] {Constants.SHAPE_RECTANGLE, Constants.SHAPE_DIAMOND};
    DataShapeAction shape = new DataShapeAction(group, "Senate", shapes);

    Counter cntr = new Counter(group);

    ActionList draw = new ActionList();
    draw.add(cntr);
    draw.add(color);
    draw.add(shape);
    draw.add(xaxis);
    draw.add(yaxis);
    draw.add(ylabels);
    draw.add(new ColorAction(group, VisualItem.FILLCOLOR, 0));
    draw.add(new RepaintAction());
    vis.putAction("draw", draw);

    ActionList update = new ActionList();
    update.add(new VisibilityFilter(group, filter));
    update.add(cntr);
    update.add(xaxis);
    update.add(yaxis);
    update.add(ylabels);
    update.add(new RepaintAction());
    vis.putAction("update", update);

    UpdateListener lstnr =
        new UpdateListener() {
          public void update(Object src) {
            vis.run("update");
          }
        };
    filter.addExpressionListener(lstnr);

    // --------------------------------------------------------------------
    // STEP 4: set up a display and ui components to show the visualization

    m_display = new Display(vis);
    m_display.setItemSorter(
        new ItemSorter() {
          public int score(VisualItem item) {
            int score = super.score(item);
            if (item.isInGroup(group)) score += item.getInt(TOTAL_RECEIPTS);
            return score;
          }
        });
    m_display.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
    m_display.setSize(700, 450);
    m_display.setHighQuality(true);
    m_display.addComponentListener(
        new ComponentAdapter() {
          public void componentResized(ComponentEvent e) {
            displayLayout();
          }
        });
    displayLayout();

    m_details = new JFastLabel(m_title);
    m_details.setPreferredSize(new Dimension(75, 20));
    m_details.setVerticalAlignment(SwingConstants.BOTTOM);

    m_total.setPreferredSize(new Dimension(500, 20));
    m_total.setHorizontalAlignment(SwingConstants.RIGHT);
    m_total.setVerticalAlignment(SwingConstants.BOTTOM);

    ToolTipControl ttc = new ToolTipControl("label");
    Control hoverc =
        new ControlAdapter() {
          public void itemEntered(VisualItem item, MouseEvent evt) {
            if (item.isInGroup(group)) {
              m_total.setText(item.getString("label"));
              item.setFillColor(item.getStrokeColor());
              item.setStrokeColor(ColorLib.rgb(0, 0, 0));
              item.getVisualization().repaint();
            }
          }

          public void itemExited(VisualItem item, MouseEvent evt) {
            if (item.isInGroup(group)) {
              m_total.setText(m_totalStr);
              item.setFillColor(item.getEndFillColor());
              item.setStrokeColor(item.getEndStrokeColor());
              item.getVisualization().repaint();
            }
          }
        };
    m_display.addControlListener(ttc);
    m_display.addControlListener(hoverc);

    // --------------------------------------------------------------------
    // STEP 5: launching the visualization

    this.addComponentListener(lstnr);

    // details
    Box infoBox = new Box(BoxLayout.X_AXIS);
    infoBox.add(Box.createHorizontalStrut(5));
    infoBox.add(m_details);
    infoBox.add(Box.createHorizontalGlue());
    infoBox.add(Box.createHorizontalStrut(5));
    infoBox.add(m_total);
    infoBox.add(Box.createHorizontalStrut(5));

    // set up search box
    JSearchPanel searcher = searchQ.createSearchPanel();
    searcher.setLabelText("Candidate: ");
    searcher.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 0));

    // create dynamic queries
    Box radioBox = new Box(BoxLayout.X_AXIS);
    radioBox.add(Box.createHorizontalStrut(5));
    radioBox.add(searcher);
    radioBox.add(Box.createHorizontalGlue());
    radioBox.add(Box.createHorizontalStrut(5));
    radioBox.add(yearsQ.createRadioGroup());
    radioBox.add(Box.createHorizontalStrut(16));

    JRangeSlider slider = receiptsQ.createVerticalRangeSlider();
    slider.setThumbColor(null);
    slider.setMinExtent(150000);
    slider.addMouseListener(
        new MouseAdapter() {
          public void mousePressed(MouseEvent e) {
            m_display.setHighQuality(false);
          }

          public void mouseReleased(MouseEvent e) {
            m_display.setHighQuality(true);
            m_display.repaint();
          }
        });

    vis.run("draw");
    vis.run("xlabels");

    add(infoBox, BorderLayout.NORTH);
    add(m_display, BorderLayout.CENTER);
    add(slider, BorderLayout.EAST);
    add(radioBox, BorderLayout.SOUTH);
    UILib.setColor(this, ColorLib.getColor(255, 255, 255), Color.GRAY);
    slider.setForeground(Color.LIGHT_GRAY);
    UILib.setFont(radioBox, FontLib.getFont("Tahoma", 15));
    m_details.setFont(FontLib.getFont("Tahoma", 18));
    m_total.setFont(FontLib.getFont("Tahoma", 16));
  }
Пример #3
0
  public DocumentGrid(
      final DocumentGridTable t, String xAxisInitName, String yAxisInitName, String colorInitName) {
    super(new Visualization());
    display = this;
    this.t = t;
    this.controller = MainController.getMainController();
    // add data to visualization (tables, ...)
    VisualTable vt = m_vis.addTable(DATA_GROUP, t);
    colorAttrName = colorInitName;

    // init actionlist: performs initial positioning of the glyphs, axes
    ActionList init = new ActionList();
    // add document layout action
    // rather than taking only the values which are present, let's pull the valid values directly
    // from the ML module, since some applicable values might not be present within the current
    // documents, but we will need these regions to be present in the visualization for dragging?
    //        List<String> xAxisInitCategories = t.getValueListForAttribute(xAxisInitName);
    List<String> xAxisInitCategories = controller.getValuesForAttribute(xAxisInitName);
    //        List<String> yAxisInitCategories = t.getValueListForAttribute(yAxisInitName);
    List<String> yAxisInitCategories = controller.getValuesForAttribute(yAxisInitName);
    documentGridLayout =
        new DocumentGridLayoutNested(
            DATA_GROUP, xAxisInitName, yAxisInitName, xAxisInitCategories, yAxisInitCategories);
    init.add(documentGridLayout);
    // add axes layout action
    docGridAxisLayout = new DocumentGridAxisLayout(ALL_LABEL, documentGridLayout);
    documentGridLayout.setAxisLayout(docGridAxisLayout);
    //        init.add(docGridAxisLayout);  // because of race conditions (DGAL requiring info from
    // DGL which it doesn't have until its layout proceedure has finished), DGAL is now called
    // directly by DGL, no longer as a separate member of the actionlist
    // add init actionlist to vis
    m_vis.putAction("init", init);

    // set up renderer for nodes, set rendererFactory
    nodeRenderer = new DocGlyphRenderer();
    // perform additional optional renderer setup here
    // add primary renderer to visualization
    DefaultRendererFactory rf = new DefaultRendererFactory();
    rf.setDefaultRenderer(nodeRenderer);
    // add auxiliary renderer for axes
    rf.add(new InGroupPredicate(ALL_LABEL), new DocumentGridAxisRenderer(documentGridLayout));
    m_vis.setRendererFactory(rf);

    // ActionList for simple repaint (for simple controls)
    ActionList repaint = new ActionList();
    repaint.add(new RepaintAction());
    m_vis.putAction("repaint", repaint);

    // update actionlist: performs coloration, sizing
    ActionList updateOnce = new ActionList();
    // size action
    // note: sizing is now controlled by the layout action
    //        SizeAction sizeActionUpdate = new DocGlyphSizeAction(DATA_GROUP);
    //        updateOnce.add(sizeActionUpdate);
    // shape action
    // note: now using a constant square shape
    ShapeAction squareShapeAction = new SquareShapeAction();
    updateOnce.add(squareShapeAction);
    // color action(s)
    List<String> colorInitCategories = t.getValueListForAttribute(colorInitName);
    docColorAction = new DocumentColorAction(DATA_GROUP, colorInitName, colorInitCategories);
    updateOnce.add(docColorAction);
    docBorderColorAction = new DocumentBorderColorAction(DATA_GROUP);
    updateOnce.add(docBorderColorAction);
    // visibility filter
    docGlyphVisiblePredicate = new InGroupPredicate(DATA_GROUP);
    docGlyphVisibleFilter = new GlyphVisibilityFilter(DATA_GROUP, docGlyphVisiblePredicate);
    updateOnce.add(docGlyphVisibleFilter);
    // repaint action
    updateOnce.add(new RepaintAction());
    // add update actionlist to vis
    m_vis.putAction("updateOnce", updateOnce);

    // TODO : enable proper animation
    //        ActionList animate = new ActionList(1250);
    //        animate.setPacingFunction(new SlowInSlowOutPacer());
    //        animate.add(new LocationAnimator(DATA_GROUP));
    //        animate.add(new SizeAction(DATA_GROUP));
    //        animate.add(new RepaintAction());
    //        m_vis.putAction("animate", animate);

    // get reference to glasspane
    glassPane = controller.getGlassPane();

    // set initial / basic properties of the display
    setSize(700, 600);
    setBackground(Color.LIGHT_GRAY);
    setBorder(BorderFactory.createEmptyBorder(30, 20, 5, 20));

    // for doc highlighting on search (partially adapted from TreeMap.java in Prefuse demo gallery)
    searchQ = new SearchQueryBinding(t, DocumentGridTable.NODE_TEXT);
    m_vis.addFocusGroup(Visualization.SEARCH_ITEMS, searchQ.getSearchSet());
    searchQ
        .getPredicate()
        .addExpressionListener(
            new UpdateListener() {
              @Override
              public void update(Object src) {
                //                // debug
                //                System.out.println("\n\ndebug: "+this.getClass().getName()+": in
                // SEARCH_ITEMS group: ");
                // update focus text for all items in visualtable, wrt. query
                // TODO : improve efficiency of this predicate updating method
                String queryStr = searchQ.getSearchSet().getQuery();
                Scanner querySplitter = new Scanner(queryStr);
                List<String> terms = new ArrayList<>();
                while (querySplitter.hasNext()) {
                  String term = querySplitter.next();
                  terms.add(term.trim());
                }

                // debug
                //                System.out.println("debug: "+this.getClass().getName()+": query
                // string: "+queryStr);
                int numRows = t.getRowCount();
                for (int i = 0; i < numRows; i++) {
                  t.setString(i, DocumentGridTable.NODE_FOCUS_TEXT, "");

                  String text = t.getString(i, DocumentGridTable.NODE_TEXT).toLowerCase();
                  boolean containsAllTerms = true;
                  for (String term : terms) {
                    if (!text.contains(term)) {
                      containsAllTerms = false;
                      break;
                    }
                  }
                  //                    if (!containsAllTerms) {
                  // TODO properly remove non-matching items from search set?
                  //                        searchQ.getSearchSet().removeTuple(t.getTuple(i));  //
                  // throws UnsupportedOperationException
                  //                    } else {
                  // set highlight text
                  // do very coarse "sentence-splitting"
                  // TODO : proper sentence parsing
                  List<String> focusSents = new ArrayList<>();
                  Scanner sentSplitter = new Scanner(text);
                  //                        sentSplitter.useDelimiter("[\\.\n]");  // split on
                  // period or newline
                  sentSplitter.useDelimiter("[\\.]"); // split on period only
                  while (sentSplitter.hasNext()) {
                    String sent = sentSplitter.next();
                    for (String term : terms) {
                      if (sent.contains(term)) {
                        focusSents.add(sent);
                      }
                    }
                  }
                  if (focusSents.size() > 0) {
                    StringBuilder focusText = new StringBuilder();
                    focusText.append(FOCUS_SENT_SPLITTER);
                    for (String focusSent : focusSents) {
                      focusText.append(focusSent);
                      focusText.append(FOCUS_SENT_SPLITTER + "\n");
                    }
                    t.setString(i, DocumentGridTable.NODE_FOCUS_TEXT, focusText.toString());
                  }
                  //                    }
                }

                // run repaint actions
                m_vis.run("updateOnce");
              }
            });

    // set up control listeners
    // zoom with wheel
    //        addControlListener(new WheelZoomControl());
    // zoom with background right-drag
    //        addControlListener(new ZoomControl(Control.RIGHT_MOUSE_BUTTON));
    // pan with background left-drag
    //        addControlListener(new PanControl(Control.RIGHT_MOUSE_BUTTON));
    // drag control for moving items to new cells
    docDragControl = new DocGridDragControl(DATA_GROUP, documentGridLayout, controller);
    addControlListener(docDragControl);
    // control for loading document details in glasspane
    docSelectControl = new DocumentSelectControl(glassPane);
    addControlListener(docSelectControl);

    // run actionlists

    m_vis.alwaysRunAfter("init", "updateOnce");

    m_vis.run("init");
  }
Пример #4
0
  /*
   * Constructor for the class
   * This is where all the important stuff happens
   */
  public TabularDataVis(Table t) {
    super(new BorderLayout());

    /*
     * Step 1: Setup the Visualization
     */

    // create a new visualization object, and assign it to the global variable
    final Visualization vis = new Visualization();
    g_vis = vis;

    // create a visual abstraction of the table data (loaded in the buildFrame method)
    // call our data "canUrban"
    VisualTable vt = vis.addTable("canUrban", t);

    // add a new column containing a label string showing
    // the Geographic name and population
    // note: uses the prefuse expression language
    vt.addColumn(
        "label", "CONCAT([Geographic name], ' (Population: ', FORMAT([2006 Population],0), ')')");

    // add a new column that divides the provinces by their geographic location (derived values)
    // note: uses the prefuse expression language
    vt.addColumn(
        "geographic location",
        "IF ([Province]='BC') THEN 1 ELSE "
            + "(IF ([Province] = 'AB' OR [Province] = 'SK' OR [Province] = 'MB') THEN 2 ELSE "
            + "(IF ([Province] = 'ON' OR [Province] = 'QC') THEN 3 ELSE"
            + "(IF ([Province] = 'NS' OR [Province] = 'NB' OR [Province] = 'PE' OR [Province] = 'NL') THEN 4 ELSE 5)))");

    // add a new column that converts the population data to ordinal data (derived values)
    // note: uses the prefuse expression language
    vt.addColumn(
        "population ordinal",
        "IF ([2006 Population] > 5000000) THEN 7 ELSE "
            + "(IF ([2006 Population] > 1000000) THEN 6 ELSE "
            + "(IF ([2006 Population] > 250000) THEN 5 ELSE "
            + "(IF ([2006 Population] > 100000) THEN 4 ELSE "
            + "(IF ([2006 Population] > 50000) THEN 3 ELSE "
            + "(IF ([2006 Population] > 20000) THEN 2 ELSE 1)))))");

    // create a new renderer factory for drawing the visual items
    vis.setRendererFactory(
        new RendererFactory() {

          // specify the default shape renderer (the actions will decide how to actually render the
          // visual elements)
          AbstractShapeRenderer sr = new ShapeRenderer();
          // renderers for the axes
          Renderer arY = new AxisRenderer(Constants.RIGHT, Constants.TOP);
          Renderer arX = new AxisRenderer(Constants.CENTER, Constants.FAR_BOTTOM);

          // return the appropriate renderer for a given visual item
          public Renderer getRenderer(VisualItem item) {
            return item.isInGroup("ylab") ? arY : item.isInGroup("xlab") ? arX : sr;
          }
        });

    /*
     * Step 2: Add X-Axis
     */

    // add the x-axis
    AxisLayout xaxis =
        new AxisLayout("canUrban", "Province", Constants.X_AXIS, VisiblePredicate.TRUE);

    // ensure the axis spans the width of the data container
    xaxis.setLayoutBounds(g_dataB);

    // add the labels to the x-axis
    AxisLabelLayout xlabels = new AxisLabelLayout("xlab", xaxis, g_xlabB, 15);

    /*
     * Step 3: Add the Y-Axis and its dynamic query feature
     */

    // dynamic query based on population data
    RangeQueryBinding populationQ = new RangeQueryBinding(vt, "2006 Population");
    AndPredicate filter = new AndPredicate(populationQ.getPredicate());

    // add the y-axis
    AxisLayout yaxis =
        new AxisLayout("canUrban", "2006 Population", Constants.Y_AXIS, VisiblePredicate.TRUE);

    // set the range controls on the y-axis
    yaxis.setRangeModel(populationQ.getModel());
    populationQ.getNumberModel().setValueRange(0, 6000000, 0, 6000000);

    // ensure the y-axis spans the height of the data container
    yaxis.setLayoutBounds(g_dataB);

    // add the labels to the y-axis
    AxisLabelLayout ylabels = new AxisLabelLayout("ylab", yaxis, g_ylabB);
    NumberFormat nf = NumberFormat.getIntegerInstance();
    nf.setMaximumFractionDigits(0);
    ylabels.setNumberFormat(nf);

    /*
     * Step 4: Add the search box
     */

    // dynamic query based on Geographic name data
    SearchQueryBinding searchQ = new SearchQueryBinding(vt, "Geographic name");
    filter.add(searchQ.getPredicate()); // reuse the same filter as the population query

    /*
     * Step 5: Colours and Shapes
     */

    // assign a set of five perceptually distinct colours to assign to the provinces
    // chosen from ColorBrewer (5-class qualitative Set1)
    int[] palette =
        new int[] {
          ColorLib.rgb(77, 175, 74),
          ColorLib.rgb(55, 126, 184),
          ColorLib.rgb(228, 26, 28),
          ColorLib.rgb(152, 78, 163),
          ColorLib.rgb(255, 127, 0)
        };

    // specify the stroke (exterior line) based on the ordinal data
    DataColorAction color =
        new DataColorAction(
            "canUrban", "geographic location", Constants.ORDINAL, VisualItem.STROKECOLOR, palette);

    // specify the fill (interior) as a static colour (white)
    ColorAction fill = new ColorAction("canUrban", VisualItem.FILLCOLOR, 0);

    // represent all the data points with rectangles
    ShapeAction shape = new ShapeAction("canUrban", Constants.SHAPE_RECTANGLE);

    // assign the size of the visual element based on the population data (we
    // converted the 2006 Population data to ordinal values)
    DataSizeAction size = new DataSizeAction("canUrban", "population ordinal");

    // setup a counter to keep track of which data points are currently being viewed
    Counter cntr = new Counter("canUrban");

    /*
     * Step 6: Create the action list for drawing the visual elements
     */

    ActionList draw = new ActionList();
    draw.add(cntr);
    draw.add(color);
    draw.add(fill);
    draw.add(shape);
    draw.add(size);
    draw.add(xaxis);
    draw.add(yaxis);
    draw.add(ylabels);
    draw.add(new RepaintAction());
    vis.putAction("draw", draw);
    vis.putAction("xlabels", xlabels);

    /*
     * create the action list for updating the visual elements
     * (during interactive operations and re-sizing of the window)
     */
    ActionList update = new ActionList();
    update.add(new VisibilityFilter("canUrban", filter)); // filter performs the size/name filtering
    update.add(cntr);
    update.add(xaxis);
    update.add(yaxis);
    update.add(ylabels);
    update.add(new RepaintAction());
    vis.putAction("update", update);

    // create an update listener that will update the visualization when fired
    UpdateListener lstnr =
        new UpdateListener() {

          public void update(Object src) {
            vis.run("update");
          }
        };

    // add this update listener to the filter, so that when the filter changes (i.e.,
    // the user adjusts the axis parameters, or enters a name for filtering), the
    // visualization is updated
    filter.addExpressionListener(lstnr);

    /*
     * Step 7: Setup the Display and the other Interface components
     * (scroll bar, query box, tool tips)
     */

    // create the display
    g_display = new Display(vis);

    // set the display properties
    g_display.setBorder(BorderFactory.createEmptyBorder(10, 20, 10, 20));
    g_display.setSize(700, 450);
    g_display.setHighQuality(true);

    // call the function that sets the sizes of the containers that contain
    // the data and the axes
    displayLayout();

    // whenever the window is re-sized, update the layout of the axes
    g_display.addComponentListener(
        new ComponentAdapter() {

          public void componentResized(ComponentEvent e) {
            displayLayout();
          }
        });

    // title label (top left)
    JFastLabel g_details = new JFastLabel("Canadian Urban Population");
    g_details.setPreferredSize(new Dimension(350, 20));
    g_details.setVerticalAlignment(SwingConstants.BOTTOM);

    // total label (top right)
    g_total.setPreferredSize(new Dimension(350, 20));
    g_total.setHorizontalAlignment(SwingConstants.RIGHT);
    g_total.setVerticalAlignment(SwingConstants.BOTTOM);

    // tool tips
    ToolTipControl ttc = new ToolTipControl("label");
    Control hoverc =
        new ControlAdapter() {

          public void itemEntered(VisualItem item, MouseEvent evt) {
            if (item.isInGroup("canUrban")) {
              g_total.setText(item.getString("label"));
              item.setFillColor(item.getStrokeColor());
              item.setStrokeColor(ColorLib.rgb(0, 0, 0));
              item.getVisualization().repaint();
            }
          }

          public void itemExited(VisualItem item, MouseEvent evt) {
            if (item.isInGroup("canUrban")) {
              g_total.setText(g_totalStr);
              item.setFillColor(item.getEndFillColor());
              item.setStrokeColor(item.getEndStrokeColor());
              item.getVisualization().repaint();
            }
          }
        };
    g_display.addControlListener(ttc);
    g_display.addControlListener(hoverc);

    // vertical slider for adjusting the population filter
    JRangeSlider slider = populationQ.createVerticalRangeSlider();
    slider.setThumbColor(null);
    slider.setToolTipText("drag the arrows to filter the data");
    // smallest window: 200,000
    slider.setMinExtent(200000);
    slider.addMouseListener(
        new MouseAdapter() {

          public void mousePressed(MouseEvent e) {
            g_display.setHighQuality(false);
          }

          public void mouseReleased(MouseEvent e) {
            g_display.setHighQuality(true);
            g_display.repaint();
          }
        });

    // search box
    JSearchPanel searcher = searchQ.createSearchPanel();
    searcher.setLabelText("Urban Centre: ");
    searcher.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 0));

    /*
     * Step 8: Create Containers for the Interface Elements
     */

    // add the listener to this component
    this.addComponentListener(lstnr);

    // container for elements at the top of the screen
    Box topContainer = new Box(BoxLayout.X_AXIS);
    topContainer.add(Box.createHorizontalStrut(5));
    topContainer.add(g_details);
    topContainer.add(Box.createHorizontalGlue());
    topContainer.add(Box.createHorizontalStrut(5));
    topContainer.add(g_total);
    topContainer.add(Box.createHorizontalStrut(5));

    // container for elements at the bottom of the screen
    Box bottomContainer = new Box(BoxLayout.X_AXIS);
    bottomContainer.add(Box.createHorizontalStrut(5));
    bottomContainer.add(searcher);
    bottomContainer.add(Box.createHorizontalGlue());
    bottomContainer.add(Box.createHorizontalStrut(5));
    bottomContainer.add(Box.createHorizontalStrut(16));

    // fonts, colours, etc.
    UILib.setColor(this, ColorLib.getColor(255, 255, 255), Color.GRAY);
    slider.setForeground(Color.LIGHT_GRAY);
    UILib.setFont(bottomContainer, FontLib.getFont("Tahoma", 15));
    g_details.setFont(FontLib.getFont("Tahoma", 18));
    g_total.setFont(FontLib.getFont("Tahoma", 16));

    // add the containers to the JPanel
    add(topContainer, BorderLayout.NORTH);
    add(g_display, BorderLayout.CENTER);
    add(slider, BorderLayout.EAST);
    add(bottomContainer, BorderLayout.SOUTH);

    /*
     * Step 9: Start the Visualization
     */

    vis.run("draw");
    vis.run("xlabels");
  }