public CombinedDomainCategoryPlot() 
{
    // TODO:  move the above to the plot state
        this(new CategoryAxis());
}

Default constructor.

 public CombinedDomainCategoryPlot(CategoryAxis domainAxis) 
{
        super(null, domainAxis, null, null);
        this.subplots = new java.util.ArrayList();
        this.totalWeight = 0;
        this.gap = 5.0;
}

Creates a new plot.

Parameters:

domainAxis - the shared domain axis (null not permitted).

 public  void add(CategoryPlot subplot) 
{
        add(subplot, 1);
}

Adds a subplot to the combined chart and sends a PlotChangeEvent to all registered listeners.

The domain axis for the subplot will be set to null. You must ensure that the subplot has a non-null range axis.

 public  void add(CategoryPlot subplot,
    int weight) 
{
        if (subplot == null) {
            throw new IllegalArgumentException("Null 'subplot' argument.");
        }
        if (weight <  1) {
            throw new IllegalArgumentException("Require weight  >= 1.");
        }
        subplot.setParent(this);
        subplot.setWeight(weight);
        subplot.setInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
        subplot.setDomainAxis(null);
        subplot.setOrientation(getOrientation());
        subplot.addChangeListener(this);
        this.subplots.add(subplot);
        this.totalWeight += weight;
        CategoryAxis axis = getDomainAxis();
        if (axis != null) {
            axis.configure();
        }
        fireChangeEvent();
}

Adds a subplot to the combined chart and sends a PlotChangeEvent to all registered listeners.

The domain axis for the subplot will be set to null. You must ensure that the subplot has a non-null range axis.

 protected AxisSpace calculateAxisSpace(Graphics2D g2,
    Rectangle2D plotArea) 
{
        AxisSpace space = new AxisSpace();
        PlotOrientation orientation = getOrientation();
        // work out the space required by the domain axis...
        AxisSpace fixed = getFixedDomainAxisSpace();
        if (fixed != null) {
            if (orientation == PlotOrientation.HORIZONTAL) {
                space.setLeft(fixed.getLeft());
                space.setRight(fixed.getRight());
            }
            else if (orientation == PlotOrientation.VERTICAL) {
                space.setTop(fixed.getTop());
                space.setBottom(fixed.getBottom());
            }
        }
        else {
            CategoryAxis categoryAxis = getDomainAxis();
            RectangleEdge categoryEdge = Plot.resolveDomainAxisLocation(
                    getDomainAxisLocation(), orientation);
            if (categoryAxis != null) {
                space = categoryAxis.reserveSpace(g2, this, plotArea,
                        categoryEdge, space);
            }
            else {
                if (getDrawSharedDomainAxis()) {
                    space = getDomainAxis().reserveSpace(g2, this, plotArea,
                            categoryEdge, space);
                }
            }
        }
        Rectangle2D adjustedPlotArea = space.shrink(plotArea, null);
        // work out the maximum height or width of the non-shared axes...
        int n = this.subplots.size();
        this.subplotAreas = new Rectangle2D[n];
        double x = adjustedPlotArea.getX();
        double y = adjustedPlotArea.getY();
        double usableSize = 0.0;
        if (orientation == PlotOrientation.HORIZONTAL) {
            usableSize = adjustedPlotArea.getWidth() - this.gap * (n - 1);
        }
        else if (orientation == PlotOrientation.VERTICAL) {
            usableSize = adjustedPlotArea.getHeight() - this.gap * (n - 1);
        }
        for (int i = 0; i <  n; i++) {
            CategoryPlot plot = (CategoryPlot) this.subplots.get(i);
            // calculate sub-plot area
            if (orientation == PlotOrientation.HORIZONTAL) {
                double w = usableSize * plot.getWeight() / this.totalWeight;
                this.subplotAreas[i] = new Rectangle2D.Double(x, y, w,
                        adjustedPlotArea.getHeight());
                x = x + w + this.gap;
            }
            else if (orientation == PlotOrientation.VERTICAL) {
                double h = usableSize * plot.getWeight() / this.totalWeight;
                this.subplotAreas[i] = new Rectangle2D.Double(x, y,
                        adjustedPlotArea.getWidth(), h);
                y = y + h + this.gap;
            }
            AxisSpace subSpace = plot.calculateRangeAxisSpace(g2,
                    this.subplotAreas[i], null);
            space.ensureAtLeast(subSpace);
        }
        return space;
}

Calculates the space required for the axes.

 public Object clone() throws CloneNotSupportedException 
{
        CombinedDomainCategoryPlot result
            = (CombinedDomainCategoryPlot) super.clone();
        result.subplots = (List) ObjectUtilities.deepClone(this.subplots);
        for (Iterator it = result.subplots.iterator(); it.hasNext();) {
            Plot child = (Plot) it.next();
            child.setParent(result);
        }
        return result;
}

Returns a clone of the plot.

 public  void draw(Graphics2D g2,
    Rectangle2D area,
    Point2D anchor,
    PlotState parentState,
    PlotRenderingInfo info) 
{
        // set up info collection...
        if (info != null) {
            info.setPlotArea(area);
        }
        // adjust the drawing area for plot insets (if any)...
        RectangleInsets insets = getInsets();
        area.setRect(area.getX() + insets.getLeft(),
                area.getY() + insets.getTop(),
                area.getWidth() - insets.getLeft() - insets.getRight(),
                area.getHeight() - insets.getTop() - insets.getBottom());
        // calculate the data area...
        setFixedRangeAxisSpaceForSubplots(null);
        AxisSpace space = calculateAxisSpace(g2, area);
        Rectangle2D dataArea = space.shrink(area, null);
        // set the width and height of non-shared axis of all sub-plots
        setFixedRangeAxisSpaceForSubplots(space);
        // draw the shared axis
        CategoryAxis axis = getDomainAxis();
        RectangleEdge domainEdge = getDomainAxisEdge();
        double cursor = RectangleEdge.coordinate(dataArea, domainEdge);
        AxisState axisState = axis.draw(g2, cursor, area, dataArea,
                domainEdge, info);
        if (parentState == null) {
            parentState = new PlotState();
        }
        parentState.getSharedAxisStates().put(axis, axisState);
        // draw all the subplots
        for (int i = 0; i <  this.subplots.size(); i++) {
            CategoryPlot plot = (CategoryPlot) this.subplots.get(i);
            PlotRenderingInfo subplotInfo = null;
            if (info != null) {
                subplotInfo = new PlotRenderingInfo(info.getOwner());
                info.addSubplotInfo(subplotInfo);
            }
            plot.draw(g2, this.subplotAreas[i], null, parentState, subplotInfo);
        }
        if (info != null) {
            info.setDataArea(dataArea);
        }
}

Draws the plot on a Java 2D graphics device (such as the screen or a printer). Will perform all the placement calculations for each of the sub-plots and then tell these to draw themselves.

 public boolean equals(Object obj) 
{
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof CombinedDomainCategoryPlot)) {
            return false;
        }
        if (!super.equals(obj)) {
            return false;
        }
        CombinedDomainCategoryPlot plot = (CombinedDomainCategoryPlot) obj;
        if (!ObjectUtilities.equal(this.subplots, plot.subplots)) {
            return false;
        }
        if (this.totalWeight != plot.totalWeight) {
            return false;
        }
        if (this.gap != plot.gap) {
            return false;
        }
        return true;
}

Tests the plot for equality with an arbitrary object.

 public CategoryPlot findSubplot(PlotRenderingInfo info,
    Point2D source) 
{
        if (info == null) {
            throw new IllegalArgumentException("Null 'info' argument.");
        }
        if (source == null) {
            throw new IllegalArgumentException("Null 'source' argument.");
        }
        CategoryPlot result = null;
        int subplotIndex = info.getSubplotIndex(source);
        if (subplotIndex  >= 0) {
            result =  (CategoryPlot) this.subplots.get(subplotIndex);
        }
        return result;
}

Returns the subplot (if any) that contains the (x, y) point (specified in Java2D space).

 public List getCategories() 
{
        List result = new java.util.ArrayList();
        if (this.subplots != null) {
            Iterator iterator = this.subplots.iterator();
            while (iterator.hasNext()) {
                CategoryPlot plot = (CategoryPlot) iterator.next();
                List more = plot.getCategories();
                Iterator moreIterator = more.iterator();
                while (moreIterator.hasNext()) {
                    Comparable category = (Comparable) moreIterator.next();
                    if (!result.contains(category)) {
                        result.add(category);
                    }
                }
            }
        }
        return Collections.unmodifiableList(result);
}

Returns an unmodifiable list of the categories contained in all the subplots.

 public List getCategoriesForAxis(CategoryAxis axis) 
{
        // FIXME:  this code means that it is not possible to use more than
        // one domain axis for the combined plots...
        return getCategories();
}

Overridden to return the categories in the subplots.

 public Range getDataRange(ValueAxis axis) 
{
         // override is only for documentation purposes
         return super.getDataRange(axis);
}

Returns a range representing the extent of the data values in this plot (obtained from the subplots) that will be rendered against the specified axis. NOTE: This method is intended for internal JFreeChart use, and is public only so that code in the axis classes can call it. Since, for this class, the domain axis is a CategoryAxis (not a ValueAxis

 public double getGap() 
{
        return this.gap;
}

Returns the space between subplots.

 public LegendItemCollection getLegendItems() 
{
        LegendItemCollection result = getFixedLegendItems();
        if (result == null) {
            result = new LegendItemCollection();
            if (this.subplots != null) {
                Iterator iterator = this.subplots.iterator();
                while (iterator.hasNext()) {
                    CategoryPlot plot = (CategoryPlot) iterator.next();
                    LegendItemCollection more = plot.getLegendItems();
                    result.addAll(more);
                }
            }
        }
        return result;
}

Returns a collection of legend items for the plot.

 public List getSubplots() 
{
        if (this.subplots != null) {
            return Collections.unmodifiableList(this.subplots);
        }
        else {
            return Collections.EMPTY_LIST;
        }
}

Returns the list of subplots. The returned list may be empty, but is never null.

 public  void handleClick(int x,
    int y,
    PlotRenderingInfo info) 
{
        Rectangle2D dataArea = info.getDataArea();
        if (dataArea.contains(x, y)) {
            for (int i = 0; i <  this.subplots.size(); i++) {
                CategoryPlot subplot = (CategoryPlot) this.subplots.get(i);
                PlotRenderingInfo subplotInfo = info.getSubplotInfo(i);
                subplot.handleClick(x, y, subplotInfo);
            }
        }
}

Handles a 'click' on the plot.

 public  void plotChanged(PlotChangeEvent event) 
{
        notifyListeners(event);
}

Receives a PlotChangeEvent and responds by notifying all listeners.

 public  void remove(CategoryPlot subplot) 
{
        if (subplot == null) {
            throw new IllegalArgumentException("Null 'subplot' argument.");
        }
        int position = -1;
        int size = this.subplots.size();
        int i = 0;
        while (position == -1 && i <  size) {
            if (this.subplots.get(i) == subplot) {
                position = i;
            }
            i++;
        }
        if (position != -1) {
            this.subplots.remove(position);
            subplot.setParent(null);
            subplot.removeChangeListener(this);
            this.totalWeight -= subplot.getWeight();
            CategoryAxis domain = getDomainAxis();
            if (domain != null) {
                domain.configure();
            }
            fireChangeEvent();
        }
}

Removes a subplot from the combined chart. Potentially, this removes some unique categories from the overall union of the datasets...so the domain axis is reconfigured, then a PlotChangeEvent is sent to all registered listeners.

 protected  void setFixedRangeAxisSpaceForSubplots(AxisSpace space) 
{
        Iterator iterator = this.subplots.iterator();
        while (iterator.hasNext()) {
            CategoryPlot plot = (CategoryPlot) iterator.next();
            plot.setFixedRangeAxisSpace(space, false);
        }
}

Sets the size (width or height, depending on the orientation of the plot) for the range axis of each subplot.

 public  void setGap(double gap) 
{
        this.gap = gap;
        fireChangeEvent();
}

Sets the amount of space between subplots and sends a PlotChangeEvent to all registered listeners.

 public  void setOrientation(PlotOrientation orientation) 
{
        super.setOrientation(orientation);
        Iterator iterator = this.subplots.iterator();
        while (iterator.hasNext()) {
            CategoryPlot plot = (CategoryPlot) iterator.next();
            plot.setOrientation(orientation);
        }
}

Sets the orientation of the plot (and all subplots).

 public  void zoomRangeAxes(double factor,
    PlotRenderingInfo info,
    Point2D source) 
{
        zoomRangeAxes(factor, info, source, false);
}

Multiplies the range on the range axis/axes by the specified factor.

 public  void zoomRangeAxes(double factor,
    PlotRenderingInfo info,
    Point2D source,
    boolean useAnchor) 
{
        // delegate 'info' and 'source' argument checks...
        CategoryPlot subplot = findSubplot(info, source);
        if (subplot != null) {
            subplot.zoomRangeAxes(factor, info, source, useAnchor);
        }
        else {
            // if the source point doesn't fall within a subplot, we do the
            // zoom on all subplots...
            Iterator iterator = getSubplots().iterator();
            while (iterator.hasNext()) {
                subplot = (CategoryPlot) iterator.next();
                subplot.zoomRangeAxes(factor, info, source, useAnchor);
            }
        }
}

Multiplies the range on the range axis/axes by the specified factor.

 public  void zoomRangeAxes(double lowerPercent,
    double upperPercent,
    PlotRenderingInfo info,
    Point2D source) 
{
        // delegate 'info' and 'source' argument checks...
        CategoryPlot subplot = findSubplot(info, source);
        if (subplot != null) {
            subplot.zoomRangeAxes(lowerPercent, upperPercent, info, source);
        }
        else {
            // if the source point doesn't fall within a subplot, we do the
            // zoom on all subplots...
            Iterator iterator = getSubplots().iterator();
            while (iterator.hasNext()) {
                subplot = (CategoryPlot) iterator.next();
                subplot.zoomRangeAxes(lowerPercent, upperPercent, info, source);
            }
        }
}

Zooms in on the range axes.