lineandshaperenderer.java

这是一个segy数据显示程序

        }

        // otherwise look up the paint table
        Boolean flag = this.seriesShapesFilled.getBoolean(series);
        if (flag != null) {
            return flag.booleanValue();
        }
        else {
            return this.defaultShapesFilled.booleanValue();
        } 

    }
    
    /**
     * Returns the flag that controls whether or not shapes are filled for ALL series.
     * 
     * @return A Boolean.
     */
    public Boolean getShapesFilled() {
        return this.shapesFilled;
    }

    /**
     * Sets the 'shapes filled' for ALL series.
     * 
     * @param filled  the flag.
     */
    public void setShapesFilled(boolean filled) {
        if (filled) {
            setShapesFilled(Boolean.TRUE);
        }
        else {
            setShapesFilled(Boolean.FALSE);
        }
    }
    
    /**
     * Sets the 'shapes filled' for ALL series.
     * 
     * @param filled  the flag (<code>null</code> permitted).
     */
    public void setShapesFilled(Boolean filled) {
        this.shapesFilled = filled;
    }
    
    /**
     * Sets the 'shapes filled' flag for a series.
     *
     * @param series  the series index (zero-based).
     * @param filled  the flag.
     */
    public void setSeriesShapesFilled(int series, Boolean filled) {
        this.seriesShapesFilled.setBoolean(series, filled);
    }

    /**
     * Sets the 'shapes filled' flag for a series.
     *
     * @param series  the series index (zero-based).
     * @param filled  the flag.
     */
    public void setSeriesShapesFilled(int series, boolean filled) {
        this.seriesShapesFilled.setBoolean(series, new Boolean(filled));
    }

    /**
     * Returns the default 'shape filled' attribute.
     *
     * @return The default flag.
     */
    public Boolean getDefaultShapesFilled() {
        return this.defaultShapesFilled;
    }

    /**
     * Sets the default 'shapes filled' flag.
     *
     * @param flag  the flag.
     */
    public void setDefaultShapesFilled(Boolean flag) {
        this.defaultShapesFilled = flag;
    }
    
    /**
     * Sets the default 'shapes filled' flag.
     *
     * @param flag  the flag.
     */
    public void setDefaultShapesFilled(boolean flag) {
        setDefaultShapesFilled(new Boolean(flag));
    }

    /**
     * Draw a single data item.
     *
     * @param g2  the graphics device.
     * @param state  the renderer state.
     * @param dataArea  the area in which the data is drawn.
     * @param plot  the plot.
     * @param domainAxis  the domain axis.
     * @param rangeAxis  the range axis.
     * @param dataset  the dataset.
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     */
    public void drawItem(Graphics2D g2,
                         CategoryItemRendererState state,
                         Rectangle2D dataArea,
                         CategoryPlot plot,
                         CategoryAxis domainAxis,
                         ValueAxis rangeAxis,
                         CategoryDataset dataset,
                         int row,
                         int column) {

        // nothing is drawn for null...
        Number v = dataset.getValue(row, column);
        if (v == null) {
            return;
        }

        PlotOrientation orientation = plot.getOrientation();

        // current data point...
        double x1 = domainAxis.getCategoryMiddle(
            column, getColumnCount(), dataArea, plot.getDomainAxisEdge()
        );
        double value = v.doubleValue();
        double y1 = rangeAxis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());


        Shape shape = getItemShape(row, column);
        if (orientation == PlotOrientation.HORIZONTAL) {
            shape = createTransformedShape(shape, y1, x1);
        }
        else if (orientation == PlotOrientation.VERTICAL) {
            shape = createTransformedShape(shape, x1, y1);
        }
        if (isDrawShapes()) {
            
            if (getItemShapeFilled(row, column)) {
                g2.setPaint(getItemPaint(row, column));
                g2.fill(shape);
            }
            else {
                if (this.useFillPaintForShapeOutline) {
                     g2.setPaint(getItemPaint(row, column));   
                }
                else {
                    g2.setPaint(getItemOutlinePaint(row, column));
                }
                g2.setStroke(getItemOutlineStroke(row, column));
                g2.draw(shape);
            }
        }

        if (isDrawLines()) {
            if (column != 0) {

                Number previousValue = dataset.getValue(row, column - 1);
                if (previousValue != null) {

                    // previous data point...
                    double previous = previousValue.doubleValue();
                    double x0 = domainAxis.getCategoryMiddle(
                        column - 1, getColumnCount(), dataArea, plot.getDomainAxisEdge()
                    );
                    double y0 = rangeAxis.valueToJava2D(
                        previous, dataArea, plot.getRangeAxisEdge()
                    );

                    Line2D line = null;
                    if (orientation == PlotOrientation.HORIZONTAL) {
                        line = new Line2D.Double(y0, x0, y1, x1);
                    }
                    else if (orientation == PlotOrientation.VERTICAL) {
                        line = new Line2D.Double(x0, y0, x1, y1);
                    }
                    g2.setPaint(getItemPaint(row, column));
                    g2.setStroke(getItemStroke(row, column));
                    g2.draw(line);
                }
            }
        }

        // draw the item label if there is one...
        if (isItemLabelVisible(row, column)) {
            drawItemLabel(
                g2, orientation, dataset, row, column, x1, y1, (value < 0.0)
            );
        }

        // collect entity and tool tip information...
        if (state.getInfo() != null) {
            EntityCollection entities = state.getInfo().getOwner().getEntityCollection();
            if (entities != null && shape != null) {
                String tip = null;
                CategoryToolTipGenerator tipster = getToolTipGenerator(row, column);
                if (tipster != null) {
                    tip = tipster.generateToolTip(dataset, row, column);
                }
                String url = null;
                if (getItemURLGenerator(row, column) != null) {
                    url = getItemURLGenerator(row, column).generateURL(dataset, row, column);
                }
                CategoryItemEntity entity = new CategoryItemEntity(
                    shape, tip, url, dataset, row, dataset.getColumnKey(column), column
                );
                entities.addEntity(entity);

            }

        }

    }
    
    /**
     * Tests this renderer for equality with another object.
     *
     * @param obj  the object.
     *
     * @return <code>true</code> or <code>false</code>.
     */
    public boolean equals(Object obj) {

        boolean result = super.equals(obj);

        if (obj instanceof LineAndShapeRenderer) {
            LineAndShapeRenderer r = (LineAndShapeRenderer) obj;
            boolean b0 = (r.drawLines == this.drawLines);
            boolean b1 = (r.drawShapes == this.drawShapes);
            boolean b2 = ObjectUtils.equal(r.shapesFilled, this.shapesFilled);
            boolean b3 = ObjectUtils.equal(r.seriesShapesFilled, this.seriesShapesFilled);
            boolean b4 = ObjectUtils.equal(r.defaultShapesFilled, this.defaultShapesFilled);
    
            result = result && b0 && b1 && b2 && b3 && b4;
        }

        return result;

    }

    /**
     * Returns an independent copy of the renderer.
     * 
     * @return A clone.
     * 
     * @throws CloneNotSupportedException  should not happen.
     */
    public Object clone() throws CloneNotSupportedException {
        LineAndShapeRenderer clone = (LineAndShapeRenderer) super.clone();
        clone.seriesShapesFilled = (BooleanList) this.seriesShapesFilled.clone();
        return clone;
    }
    
}