categoryplot.java

这是一个segy数据显示程序

     * @param index  the axis index.
     * @param location  the location.
     * @param notify  notify listeners?
     */
    public void setRangeAxisLocation(int index, AxisLocation location, boolean notify) {
        // TODO: don't allow null for index = 0
        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;
    }

    /**
     * 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>).
     */
    public CategoryDataset getDataset() {
        return getDataset(0);
    }

    /**
     * Returns a dataset.
     *
     * @param index  the dataset index.
     *
     * @return The dataset (possibly <code>null</code>).
     */
    public CategoryDataset getDataset(int index) {
        CategoryDataset result = null;
        if (this.datasets.size() > index) {
            result = (CategoryDataset) this.datasets.get(index);
        }
        return result;
    }

    /**
     * Sets the dataset for the plot, replacing the existing dataset, if there is one.  This
     * method also calls the {@link #datasetChanged(DatasetChangeEvent)} method, which adjusts the 
     * axis ranges if necessary and sends a {@link PlotChangeEvent} to all registered listeners.
     *
     * @param dataset  the dataset (<code>null</code> permitted).
     */
    public void setDataset(CategoryDataset dataset) {
        setDataset(0, dataset);
    }

    /**
     * Sets a dataset for the plot.
     *
     * @param index  the dataset index.
     * @param dataset  the dataset (<code>null</code> permitted).
     */
    public void setDataset(int index, CategoryDataset dataset) {
        
        CategoryDataset existing = (CategoryDataset) this.datasets.get(index);
        if (existing != null) {
            existing.removeChangeListener(this);
        }
        this.datasets.set(index, dataset);
        if (dataset != null) {
            dataset.addChangeListener(this);
        }
        
        // send a dataset change event to self...
        DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
        datasetChanged(event);
        
    }

    /**
     * Maps a dataset to a particular domain axis.
     * 
     * @param index  the dataset index (zero-based).
     * @param axisIndex  the axis index (zero-based).
     */
    public void mapDatasetToDomainAxis(int index, int axisIndex) {
        this.datasetToDomainAxisMap.set(index, new Integer(axisIndex));  
        // fake a dataset change event to update axes...
        datasetChanged(new DatasetChangeEvent(this, getDataset(index)));  
    }

    /**
     * Returns the domain axis for a dataset.  You can change the axis for a dataset using the 
     * mapDatasetToDomainAxis() method.
     * 
     * @param index  the dataset index.
     * 
     * @return The domain axis.
     */
    public CategoryAxis getDomainAxisForDataset(int index) {
        CategoryAxis result = getDomainAxis();
        Integer axisIndex = (Integer) this.datasetToDomainAxisMap.get(index);
        if (axisIndex != null) {
            result = getDomainAxis(axisIndex.intValue());
        }
        return result;    
    }
    
    /**
     * Maps a dataset to a particular range axis.
     * 
     * @param index  the dataset index (zero-based).
     * @param axisIndex  the axis index (zero-based).
     */
    public void mapDatasetToRangeAxis(int index, int axisIndex) {
        this.datasetToRangeAxisMap.set(index, new Integer(axisIndex));
        // fake a dataset change event to update axes...
        datasetChanged(new DatasetChangeEvent(this, getDataset(index)));  
    }

    /**
     * Returns the range axis for a dataset.  You can change the axis for a dataset using the 
     * mapDatasetToRangeAxis() method.
     * 
     * @param index  the dataset index.
     * 
     * @return The range axis.
     */
    public ValueAxis getRangeAxisForDataset(int index) {
        ValueAxis result = getRangeAxis();
        Integer axisIndex = (Integer) this.datasetToRangeAxisMap.get(index);
        if (axisIndex != null) {
            result = getRangeAxis(axisIndex.intValue());
        }
        return result;    
    }
    
    /**
     * Returns a reference to the renderer for the plot.
     *
     * @return The renderer.
     */
    public CategoryItemRenderer getRenderer() {
        return getRenderer(0);
    }

    /**
     * Returns a renderer.
     *
     * @param index  the renderer index.
     *
     * @return The renderer (possibly <code>null</code>).
     */
    public CategoryItemRenderer getRenderer(int index) {
        CategoryItemRenderer result = null;
        if (this.renderers.size() > index) {
            result = (CategoryItemRenderer) this.renderers.get(index);
        }
        return result;

    }
    
    /**
     * Sets the renderer at index 0 (sometimes referred to as the "primary" renderer) and 
     * sends a {@link PlotChangeEvent} to all registered listeners.
     *
     * @param renderer  the renderer (<code>null</code> permitted.
     */
    public void setRenderer(CategoryItemRenderer renderer) {
        setRenderer(0, renderer, true);
    }

    /**
     * Sets the renderer at index 0 (sometimes referred to as the "primary" renderer) and, 
     * if requested, sends a {@link PlotChangeEvent} to all registered listeners.
     * <p>
     * You can set the renderer to <code>null</code>, but this is not recommended because:
     * <ul>
     *   <li>no data will be displayed;</li>
     *   <li>the plot background will not be painted;</li>
     * </ul>
     *
     * @param renderer  the renderer (<code>null</code> permitted).
     * @param notify  notify listeners?
     */
    public void setRenderer(CategoryItemRenderer renderer, boolean notify) {
        setRenderer(0, renderer, notify);
    }

    /**
     * Sets the renderer at the specified index and sends a {@link PlotChangeEvent} to all 
     * registered listeners.
     *
     * @param index  the index.
     * @param renderer  the renderer (<code>null</code> permitted).
     */
    public void setRenderer(int index, CategoryItemRenderer renderer) {
        setRenderer(index, renderer, true);   
    }

    /**
     * Sets a renderer.  A {@link PlotChangeEvent} is sent to all registered listeners.
     *
     * @param index  the index.
     * @param renderer  the renderer (<code>null</code> permitted).
     * @param notify  notify listeners?
     */
    public void setRenderer(int index, CategoryItemRenderer renderer, boolean notify) {
        
        // stop listening to the existing renderer...
        CategoryItemRenderer existing = (CategoryItemRenderer) this.renderers.get(index);
        if (existing != null) {
            existing.removeChangeListener(this);
        }
        
        // register the new renderer...
        this.renderers.set(index, renderer);
        if (renderer != null) {
            renderer.setPlot(this);
            renderer.addChangeListener(this);
        }
        
        configureDomainAxes();
        configureRangeAxes();
        
        if (notify) {
            notifyListeners(new PlotChangeEvent(this));
        }
    }

    /**
     * Returns the renderer for the specified dataset.
     * 
     * @param d  the dataset (<code>null</code> permitted).
     * 
     * @return the renderer (possibly <code>null</code>).
     */
    public CategoryItemRenderer getRendererForDataset(CategoryDataset d) {
        CategoryItemRenderer result = null;
        for (int i = 0; i < this.datasets.size(); i++) {
            if (this.datasets.get(i) == d) {
                result = (CategoryItemRenderer) this.renderers.get(i);   
                break;
            }
        }
        return result;
    }

    /**
     * Returns the dataset rendering order.
     *
     * @return The order (never <code>null</code>).
     */
    public DatasetRenderingOrder getDatasetRenderingOrder() {
        return this.renderingOrder;
    }

    /**
     * Sets the rendering order and sends a {@link PlotChangeEvent} to all registered listeners.
     * By default, the plot renders the primary dataset last (so that
     * the primary dataset overlays the secondary datasets).  You can reverse this if you want to.
     *
     * @param order  the rendering order (<code>null</code> not permitted).
     */
    public void setDatasetRenderingOrder(DatasetRenderingOrder order) {
        if (order == null) {
            throw new IllegalArgumentException("Null 'order' argument.");   
        }
        this.renderingOrder = order;
        notifyListeners(new PlotChangeEvent(this));
    }

    /**
     * Returns the order in which the columns are rendered.
     * 
     * @return The order.
     */    
    public SortOrder getColumnRenderingOrder() {
        return this.columnRenderingOrder;
    }
    
    /**
     * Sets the order in which the columns should be rendered.
     * 
     * @param order  the order.
     */
    public void setColumnRenderingOrder(SortOrder order) {
        this.columnRenderingOrder = order;
    }
    
    /**
     * Returns the order in which the rows should be rendered.
     * 
     * @return the order (never <code>null</code>).
     */
    public SortOrder getRowRenderingOrder() {
        return this.rowRenderingOrder;
    }

    /**
     * Sets the order in which the rows should be rendered.
     * 
     * @param order  the order (<code>null</code> not allowed).
     */
    public void setRowRenderingOrder(SortOrder order) {
        if (order == null) {
            throw new IllegalArgumentException("Null 'order' argument.");
        }
        this.rowRenderingOrder = order;
    }
    
    /**
     * Returns the flag that controls whether the domain grid-lines are visible.
     *
     * @return the <code>true</code> or <code>false</code>.
     */
    public boolean isDomainGridlinesVisible() {
        return this.domainGridlinesVisible;
    }

    /**
     * Sets the flag that controls whether or not grid-lines are drawn against the domain axis.
     * <p>
     * If the flag value changes, a {@link PlotChangeEvent} is sent to all registered listeners.
     *
     * @param visible  the new value of the flag.
     */
    public void setDomainGridlinesVisible(boolean visible) {
        if (this.domainGridlinesVisible != visible) {
            this.domainGridlinesVisible = visible;
            notifyListeners(new PlotChangeEvent(this));
        }
    }

    /**
     * Returns the position used for the domain gridlines.
     * 
     * @return The gridline position.
     */
    public CategoryAnchor getDomainGridlinePosition() {
        return this.domainGridlinePosition;
    }