categoryplot.java

java图形利器

    /**
     * Sets the location for a domain axis and sends a {@link PlotChangeEvent}
     * to all registered listeners.
     *
     * @param index  the axis index.
     * @param location  the location.
     * 
     * @see #getDomainAxisLocation(int)
     * @see #setRangeAxisLocation(int, AxisLocation)
     */
    public void setDomainAxisLocation(int index, AxisLocation location) {
        // delegate...
        setDomainAxisLocation(index, location, true);
    }
    
    /**
     * Sets the location for a domain axis and sends a {@link PlotChangeEvent} 
     * to all registered listeners.
     * 
     * @param index  the axis index.
     * @param location  the location.
     * @param notify  notify listeners?
     * 
     * @since 1.0.5
     * 
     * @see #getDomainAxisLocation(int)
     * @see #setRangeAxisLocation(int, AxisLocation, boolean)
     */
    public void setDomainAxisLocation(int index, AxisLocation location, 
            boolean notify) {
        if (index == 0 && location == null) {
            throw new IllegalArgumentException(
                    "Null 'location' for index 0 not permitted.");
        }
        this.domainAxisLocations.set(index, location);
        if (notify) {
            notifyListeners(new PlotChangeEvent(this));
        }
    }

    /**
     * Returns the domain axis edge.  This is derived from the axis location
     * and the plot orientation.
     *
     * @return The edge (never <code>null</code>).
     */
    public RectangleEdge getDomainAxisEdge() {
        return getDomainAxisEdge(0);
    }

    /**
     * Returns the edge for a domain axis.
     *
     * @param index  the axis index.
     *
     * @return The edge (never <code>null</code>).
     */
    public RectangleEdge getDomainAxisEdge(int index) {
        RectangleEdge result = null;
        AxisLocation location = getDomainAxisLocation(index);
        if (location != null) {
            result = Plot.resolveDomainAxisLocation(location, this.orientation);
        }
        else {
            result = RectangleEdge.opposite(getDomainAxisEdge(0));
        }
        return result;
    }

    /**
     * Returns the number of domain axes.
     *
     * @return The axis count.
     */
    public int getDomainAxisCount() {
        return this.domainAxes.size();
    }

    /**
     * Clears the domain axes from the plot and sends a {@link PlotChangeEvent}
     * to all registered listeners.
     */
    public void clearDomainAxes() {
        for (int i = 0; i < this.domainAxes.size(); i++) {
            CategoryAxis axis = (CategoryAxis) this.domainAxes.get(i);
            if (axis != null) {
                axis.removeChangeListener(this);
            }
        }
        this.domainAxes.clear();
        notifyListeners(new PlotChangeEvent(this));
    }

    /**
     * Configures the domain axes.
     */
    public void configureDomainAxes() {
        for (int i = 0; i < this.domainAxes.size(); i++) {
            CategoryAxis axis = (CategoryAxis) this.domainAxes.get(i);
            if (axis != null) {
                axis.configure();
            }
        }
    }

    /**
     * Returns the range axis for the plot.  If the range axis for this plot is
     * null, then the method will return the parent plot's range axis (if there
     * is a parent plot).
     *
     * @return The range axis (possibly <code>null</code>).
     */
    public ValueAxis getRangeAxis() {
        return getRangeAxis(0);
    }

    /**
     * Returns a range axis.
     *
     * @param index  the axis index.
     *
     * @return The axis (<code>null</code> possible).
     */
    public ValueAxis getRangeAxis(int index) {
        ValueAxis result = null;
        if (index < this.rangeAxes.size()) {
            result = (ValueAxis) this.rangeAxes.get(index);
        }
        if (result == null) {
            Plot parent = getParent();
            if (parent instanceof CategoryPlot) {
                CategoryPlot cp = (CategoryPlot) parent;
                result = cp.getRangeAxis(index);
            }
        }
        return result;
    }

    /**
     * Sets the range axis for the plot and sends a {@link PlotChangeEvent} to
     * all registered listeners.
     *
     * @param axis  the axis (<code>null</code> permitted).
     */
    public void setRangeAxis(ValueAxis axis) {
        setRangeAxis(0, axis);
    }

    /**
     * Sets a range axis and sends a {@link PlotChangeEvent} to all registered
     * listeners.
     *
     * @param index  the axis index.
     * @param axis  the axis.
     */
    public void setRangeAxis(int index, ValueAxis axis) {
        setRangeAxis(index, axis, true);
    }
        
    /**
     * Sets a range axis and, if requested, sends a {@link PlotChangeEvent} to 
     * all registered listeners.
     *
     * @param index  the axis index.
     * @param axis  the axis.
     * @param notify  notify listeners?
     */
    public void setRangeAxis(int index, ValueAxis axis, boolean notify) {
        ValueAxis existing = (ValueAxis) this.rangeAxes.get(index);
        if (existing != null) {
            existing.removeChangeListener(this);
        }
        if (axis != null) {
            axis.setPlot(this);
        }
        this.rangeAxes.set(index, axis);
        if (axis != null) {
            axis.configure();
            axis.addChangeListener(this);
        }
        if (notify) {
            notifyListeners(new PlotChangeEvent(this));
        }
    }

    /**
     * Sets the range axes for this plot and sends a {@link PlotChangeEvent}
     * to all registered listeners.
     * 
     * @param axes  the axes (<code>null</code> not permitted).
     * 
     * @see #setDomainAxes(CategoryAxis[])
     */
    public void setRangeAxes(ValueAxis[] axes) {
        for (int i = 0; i < axes.length; i++) {
            setRangeAxis(i, axes[i], false);   
        }
        notifyListeners(new PlotChangeEvent(this));
    }
    
    /**
     * Returns the range axis location.
     *
     * @return The location (never <code>null</code>).
     */
    public AxisLocation getRangeAxisLocation() {
        return getRangeAxisLocation(0);
    }

    /**
     * Returns the location for a range axis.
     *
     * @param index  the axis index.
     *
     * @return The location.
     * 
     * @see #setRangeAxisLocation(int, AxisLocation)
     */
    public AxisLocation getRangeAxisLocation(int index) {
        AxisLocation result = null;
        if (index < this.rangeAxisLocations.size()) {
            result = (AxisLocation) this.rangeAxisLocations.get(index);
        }
        if (result == null) {
            result = AxisLocation.getOpposite(getRangeAxisLocation(0));
        }
        return result;
    }

    /**
     * Sets the location of the range axis and sends a {@link PlotChangeEvent}
     * to all registered listeners.
     *
     * @param location  the location (<code>null</code> not permitted).
     * 
     * @see #setRangeAxisLocation(AxisLocation, boolean)
     * @see #setDomainAxisLocation(AxisLocation)
     */
    public void setRangeAxisLocation(AxisLocation location) {
        // defer argument checking...
        setRangeAxisLocation(location, true);
    }

    /**
     * Sets the location of the range axis and, if requested, sends a 
     * {@link PlotChangeEvent} to all registered listeners.
     *
     * @param location  the location (<code>null</code> not permitted).
     * @param notify  notify listeners?
     * 
     * @see #setDomainAxisLocation(AxisLocation, boolean)
     */
    public void setRangeAxisLocation(AxisLocation location, boolean notify) {
        setRangeAxisLocation(0, location, notify);
    }

    /**
     * Sets the location for a range axis and sends a {@link PlotChangeEvent} 
     * to all registered listeners.
     *
     * @param index  the axis index.
     * @param location  the location.
     * 
     * @see #getRangeAxisLocation(int)
     * @see #setRangeAxisLocation(int, AxisLocation, boolean)
     */
    public void setRangeAxisLocation(int index, AxisLocation location) {
        setRangeAxisLocation(index, location, true);
    }

    /**
     * Sets the location for a range axis and sends a {@link PlotChangeEvent} 
     * to all registered listeners.
     *
     * @param index  the axis index.
     * @param location  the location.
     * @param notify  notify listeners?
     * 
     * @see #getRangeAxisLocation(int)
     * @see #setDomainAxisLocation(int, AxisLocation, boolean)
     */
    public void setRangeAxisLocation(int index, AxisLocation location, 
                                     boolean notify) {
        if (index == 0 && location == null) {
            throw new IllegalArgumentException(
                    "Null 'location' for index 0 not permitted.");
        }
        this.rangeAxisLocations.set(index, location);
        if (notify) {
            notifyListeners(new PlotChangeEvent(this));
        }
    }

    /**
     * Returns the edge where the primary range axis is located.
     *
     * @return The edge (never <code>null</code>).
     */
    public RectangleEdge getRangeAxisEdge() {
        return getRangeAxisEdge(0);
    }

    /**
     * Returns the edge for a range axis.
     *
     * @param index  the axis index.
     *
     * @return The edge.
     */
    public RectangleEdge getRangeAxisEdge(int index) {
        AxisLocation location = getRangeAxisLocation(index);
        RectangleEdge result = Plot.resolveRangeAxisLocation(location, 
                this.orientation);
        if (result == null) {
            result = RectangleEdge.opposite(getRangeAxisEdge(0));
        }
        return result;
    }

    /**
     * Returns the number of range axes.
     *
     * @return The axis count.
     */
    public int getRangeAxisCount() {
        return this.rangeAxes.size();
    }

    /**
     * Clears the range axes from the plot and sends a {@link PlotChangeEvent} 
     * to all registered listeners.
     */
    public void clearRangeAxes() {
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis axis = (ValueAxis) this.rangeAxes.get(i);
            if (axis != null) {
                axis.removeChangeListener(this);
            }
        }
        this.rangeAxes.clear();
        notifyListeners(new PlotChangeEvent(this));
    }

    /**
     * Configures the range axes.
     */
    public void configureRangeAxes() {
        for (int i = 0; i < this.rangeAxes.size(); i++) {
            ValueAxis axis = (ValueAxis) this.rangeAxes.get(i);
            if (axis != null) {
                axis.configure();
            }
        }
    }

    /**
     * Returns the primary dataset for the plot.
     *
     * @return The primary dataset (possibly <code>null</code>).
     * 
     * @see #setDataset(CategoryDataset)
     */
    public CategoryDataset getDataset() {
        return getDataset(0);
    }

    /**
     * Returns the dataset at the given index.
     *
     * @param index  the dataset index.
     *
     * @return The dataset (possibly <code>null</code>).
     * 
     * @see #setDataset(int, CategoryDataset)
     */
    public CategoryDataset getDataset(int index) {