abstractrenderer.java

这是一个segy数据显示程序

    /**
     * Sets the outline stroke for a series and, if requested, sends a {@link RendererChangeEvent}
     * to all registered listeners.
     * 
     * @param series  the series index.
     * @param stroke  the stroke (<code>null</code> permitted).
     * @param notify  notify listeners?
     */
    public void setSeriesOutlineStroke(int series, Stroke stroke, boolean notify) {
        this.outlineStrokeList.setStroke(series, stroke);
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }
    
    /**
     * Returns the base outline stroke.
     *
     * @return The stroke (never <code>null</code>).
     */
    public Stroke getBaseOutlineStroke() {
        return this.baseOutlineStroke;
    }

    /**
     * Sets the base outline stroke and sends a {@link RendererChangeEvent} to all 
     * registered listeners.
     *
     * @param stroke  the stroke (<code>null</code> not permitted).
     */
    public void setBaseOutlineStroke(Stroke stroke) {
        // defer argument checking...
        setBaseOutlineStroke(stroke, true);
    }

    /**
     * Sets the base outline stroke and, if requested, sends a {@link RendererChangeEvent} to all
     * registered listeners.
     * 
     * @param stroke  the stroke (<code>null</code> not permitted).
     * @param notify  a flag that controls whether or not listeners are notified.
     */
    public void setBaseOutlineStroke(Stroke stroke, boolean notify) {
        if (stroke == null) {
            throw new IllegalArgumentException("Null 'stroke' argument.");  
        }
        this.baseOutlineStroke = stroke;
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }
    
    // SHAPE
    
    /**
     * Returns a shape used to represent a data item.
     * <p>
     * The default implementation passes control to the getSeriesShape method.  You can override
     * this method if you require different behaviour.
     *
     * @param row  the row (or series) index (zero-based).
     * @param column  the column (or category) index (zero-based).
     *
     * @return The shape (never <code>null</code>).
     */
    public Shape getItemShape(int row, int column) {
        return getSeriesShape(row);
    }

    /**
     * Returns a shape used to represent the items in a series.
     *
     * @param series  the series (zero-based index).
     *
     * @return The shape (never <code>null</code>).
     */
    public Shape getSeriesShape(int series) {

        // return the override, if there is one...
        if (this.shape != null) {
            return this.shape;
        }

        // otherwise look up the shape list
        Shape result = this.shapeList.getShape(series);
        if (result == null) {
            DrawingSupplier supplier = getDrawingSupplier();
            if (supplier != null) {
                result = supplier.getNextShape();
                this.shapeList.setShape(series, result);
            }
            else {
                result = this.baseShape;
            }
        }
        return result;

    }

    /**
     * Sets the shape for ALL series (optional) and sends a {@link RendererChangeEvent} 
     * to all registered listeners.
     * 
     * @param shape  the shape (<code>null</code> permitted).
     */
    public void setShape(Shape shape) {
        setShape(shape, true);
    }
    
    /**
     * Sets the shape for ALL series and, if requested, sends a {@link RendererChangeEvent} to all
     * registered listeners.
     * 
     * @param shape  the shape (<code>null</code> permitted).
     * @param notify  notify listeners?
     */
    public void setShape(Shape shape, boolean notify) {
        this.shape = shape;
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }
    
    /**
     * Sets the shape used for a series and sends a {@link RendererChangeEvent} to all 
     * registered listeners.
     *
     * @param series  the series index (zero-based).
     * @param shape  the shape (<code>null</code> permitted).
     */
    public void setSeriesShape(int series, Shape shape) {
        setSeriesShape(series, shape, true);
    }

    /**
     * Sets the shape for a series and, if requested, sends a {@link RendererChangeEvent} to all
     * registered listeners.
     * 
     * @param series  the series index (zero based).
     * @param shape  the shape (<code>null</code> permitted).
     * @param notify  notify listeners?
     */
    public void setSeriesShape(int series, Shape shape, boolean notify) {
        this.shapeList.setShape(series, shape);
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }
    
    /**
     * Returns the base shape.
     *
     * @return The shape (never <code>null</code>).
     */
    public Shape getBaseShape() {
        return this.baseShape;
    }

    /**
     * Sets the base shape and sends a {@link RendererChangeEvent} to all 
     * registered listeners.
     *
     * @param shape  the shape (<code>null</code> not permitted).
     */
    public void setBaseShape(Shape shape) {
        // defer argument checking...
        setBaseShape(shape, true);
    }

    /**
     * Sets the base shape and, if requested, sends a {@link RendererChangeEvent} to all 
     * registered listeners.
     * 
     * @param shape  the shape (<code>null</code> not permitted). 
     * @param notify  notify listeners?
     */
    public void setBaseShape(Shape shape, boolean notify) {
        if (shape == null) {
            throw new IllegalArgumentException("Null 'shape' argument."); 
        }
        this.baseShape = shape;
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }
    
    /**
     * Creates and returns a translated version of a shape.
     *
     * @param shape  the base shape.
     * @param translateX  the x translation.
     * @param translateY  the y translation.
     *
     * @return The shape.
     */
    protected synchronized Shape createTransformedShape(Shape shape,
                                                        double translateX, double translateY) {

        AffineTransform transformer = new AffineTransform();
        transformer.setToTranslation(translateX, translateY);
        return transformer.createTransformedShape(shape);

    }

    // ITEM LABEL VISIBILITY...

    /**
     * Returns <code>true</code> if an item label is visible, and <code>false</code> otherwise.
     * 
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     * 
     * @return A boolean.
     */
    public boolean isItemLabelVisible(int row, int column) {
        return isSeriesItemLabelsVisible(row);
    }

    /**
     * Returns <code>true</code> if the item labels for a series are visible, and 
     * <code>false</code> otherwise.
     * 
     * @param series  the series index (zero-based).
     * 
     * @return A boolean.
     */    
    public boolean isSeriesItemLabelsVisible(int series) {

        // return the override, if there is one...
        if (this.itemLabelsVisible != null) {
            return this.itemLabelsVisible.booleanValue();
        }

        // otherwise look up the boolean table
        Boolean b = this.itemLabelsVisibleList.getBoolean(series);
        if (b == null) {
            b = this.baseItemLabelsVisible;
        }
        if (b == null) {
            b = Boolean.FALSE;
        }
        return b.booleanValue();

    }
    
    /**
     * Sets the visibility of the item labels for ALL series.
     * 
     * @param visible  the flag.
     */
    public void setItemLabelsVisible(boolean visible) {        
        setItemLabelsVisible(BooleanUtils.valueOf(visible));
        // The following alternative is only supported in JDK 1.4 - we support JDK 1.2.2
        // setItemLabelsVisible(Boolean.valueOf(visible));
    }
    
    /**
     * Sets the visibility of the item labels for ALL series (optional).
     * 
     * @param visible  the flag (<code>null</code> permitted).
     */
    public void setItemLabelsVisible(Boolean visible) {
        setItemLabelsVisible(visible, true);
    }
    
    /**
     * Sets the visibility of item labels for ALL series and, if requested, sends a 
     * {@link RendererChangeEvent} to all registered listeners.
     * 
     * @param visible  a flag that controls whether or not the item labels are visible 
     *                 (<code>null</code> permitted).
     * @param notify  a flag that controls whether or not listeners are notified.
     */
    public void setItemLabelsVisible(Boolean visible, boolean notify) {
        this.itemLabelsVisible = visible;
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }

    /**
     * Sets a flag that controls the visibility of the item labels for a series.
     * 
     * @param series  the series index (zero-based).
     * @param visible  the flag.
     */
    public void setSeriesItemLabelsVisible(int series, boolean visible) {
        setSeriesItemLabelsVisible(series, BooleanUtils.valueOf(visible));
    }
    
    /**
     * Sets the visibility of the item labels for a series.
     * 
     * @param series  the series index (zero-based).
     * @param visible  the flag (<code>null</code> permitted).
     */
    public void setSeriesItemLabelsVisible(int series, Boolean visible) {
        setSeriesItemLabelsVisible(series, visible, true);
    }

    /**
     * Sets the visibility of item labels for a series and, if requested, sends a 
     * {@link RendererChangeEvent} to all registered listeners.
     * 
     * @param series  the series index (zero-based).
     * @param visible  the visible flag.
     * @param notify  a flag that controls whether or not listeners are notified.
     */
    public void setSeriesItemLabelsVisible(int series, Boolean visible, boolean notify) {
        this.itemLabelsVisibleList.setBoolean(series, visible);
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }

    /**
     * Returns the base setting for item label visibility.
     * 
     * @return A flag (possibly <code>null</code>).
     */
    public Boolean getBaseItemLabelsVisible() {
        return this.baseItemLabelsVisible;
    }

    /**
     * Sets the base flag that controls whether or not item labels are visible.
     * 
     * @param visible  the flag.
     */
    public void setBaseItemLabelsVisible(boolean visible) {
        setBaseItemLabelsVisible(BooleanUtils.valueOf(visible));
    }
    
    /**
     * Sets the base setting for item label visibility.
     * 
     * @param visible  the flag (<code>null</code> permitted).
     */
    public void setBaseItemLabelsVisible(Boolean visible) {
        setBaseItemLabelsVisible(visible, true);
    }

    /**
     * Sets the base visibility for item labels and, if requested, sends a 
     * {@link RendererChangeEvent} to all registered listeners.
     * 
     * @param visible  the visibility flag.
     * @param notify  a flag that controls whether or not listeners are notified.
     */
    public void setBaseItemLabelsVisible(Boolean visible, boolean notify) {
        this.baseItemLabelsVisible = visible;
        if (notify) {
            notifyListeners(new RendererChangeEvent(this));
        }
    }

    //// ITEM LABEL FONT /////////////////////////////////////////////////////////////////////////

    /**
     * Returns the font for an item label.
     * 
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     * 
     * @return The font (never <code>null</code>).
     */
    public Font getItemLabelFont(int row, int column) {
        Font result = getSeriesItemLabelFont(row);
        if (result == null) {
            result = this.baseItemLabelFont;   
        }
        return result;
    }

    /**
     * Returns the font used for all item labels.  This may be <code>null</code>, in which case 
     * the per series font settings will apply.
     * 
     * @return The font (possibly <code>null</code>).