lineandshaperenderer.html

jfreechart1。0。2的api。

<FONT color="green">582</FONT>         *<a name="line.582"></a>
<FONT color="green">583</FONT>         * @param flag  the flag.<a name="line.583"></a>
<FONT color="green">584</FONT>         */<a name="line.584"></a>
<FONT color="green">585</FONT>        public void setBaseShapesFilled(boolean flag) {<a name="line.585"></a>
<FONT color="green">586</FONT>            this.baseShapesFilled = flag;<a name="line.586"></a>
<FONT color="green">587</FONT>        }<a name="line.587"></a>
<FONT color="green">588</FONT>    <a name="line.588"></a>
<FONT color="green">589</FONT>        /**<a name="line.589"></a>
<FONT color="green">590</FONT>         * Returns &lt;code&gt;true&lt;/code&gt; if the renderer should use the fill paint <a name="line.590"></a>
<FONT color="green">591</FONT>         * setting to fill shapes, and &lt;code&gt;false&lt;/code&gt; if it should just<a name="line.591"></a>
<FONT color="green">592</FONT>         * use the regular paint.<a name="line.592"></a>
<FONT color="green">593</FONT>         * <a name="line.593"></a>
<FONT color="green">594</FONT>         * @return A boolean.<a name="line.594"></a>
<FONT color="green">595</FONT>         */<a name="line.595"></a>
<FONT color="green">596</FONT>        public boolean getUseFillPaint() {<a name="line.596"></a>
<FONT color="green">597</FONT>            return this.useFillPaint;<a name="line.597"></a>
<FONT color="green">598</FONT>        }<a name="line.598"></a>
<FONT color="green">599</FONT>        <a name="line.599"></a>
<FONT color="green">600</FONT>        /**<a name="line.600"></a>
<FONT color="green">601</FONT>         * Sets the flag that controls whether the fill paint is used to fill <a name="line.601"></a>
<FONT color="green">602</FONT>         * shapes, and sends a {@link RendererChangeEvent} to all <a name="line.602"></a>
<FONT color="green">603</FONT>         * registered listeners.<a name="line.603"></a>
<FONT color="green">604</FONT>         * <a name="line.604"></a>
<FONT color="green">605</FONT>         * @param flag  the flag.<a name="line.605"></a>
<FONT color="green">606</FONT>         */<a name="line.606"></a>
<FONT color="green">607</FONT>        public void setUseFillPaint(boolean flag) {<a name="line.607"></a>
<FONT color="green">608</FONT>            this.useFillPaint = flag;<a name="line.608"></a>
<FONT color="green">609</FONT>            notifyListeners(new RendererChangeEvent(this));<a name="line.609"></a>
<FONT color="green">610</FONT>        }<a name="line.610"></a>
<FONT color="green">611</FONT>        <a name="line.611"></a>
<FONT color="green">612</FONT>        /**<a name="line.612"></a>
<FONT color="green">613</FONT>         * Returns a legend item for a series.<a name="line.613"></a>
<FONT color="green">614</FONT>         *<a name="line.614"></a>
<FONT color="green">615</FONT>         * @param datasetIndex  the dataset index (zero-based).<a name="line.615"></a>
<FONT color="green">616</FONT>         * @param series  the series index (zero-based).<a name="line.616"></a>
<FONT color="green">617</FONT>         *<a name="line.617"></a>
<FONT color="green">618</FONT>         * @return The legend item.<a name="line.618"></a>
<FONT color="green">619</FONT>         */<a name="line.619"></a>
<FONT color="green">620</FONT>        public LegendItem getLegendItem(int datasetIndex, int series) {<a name="line.620"></a>
<FONT color="green">621</FONT>    <a name="line.621"></a>
<FONT color="green">622</FONT>            CategoryPlot cp = getPlot();<a name="line.622"></a>
<FONT color="green">623</FONT>            if (cp == null) {<a name="line.623"></a>
<FONT color="green">624</FONT>                return null;<a name="line.624"></a>
<FONT color="green">625</FONT>            }<a name="line.625"></a>
<FONT color="green">626</FONT>    <a name="line.626"></a>
<FONT color="green">627</FONT>            if (isSeriesVisible(series) &amp;&amp; isSeriesVisibleInLegend(series)) {<a name="line.627"></a>
<FONT color="green">628</FONT>                CategoryDataset dataset;<a name="line.628"></a>
<FONT color="green">629</FONT>                dataset = cp.getDataset(datasetIndex);<a name="line.629"></a>
<FONT color="green">630</FONT>                String label = getLegendItemLabelGenerator().generateLabel(<a name="line.630"></a>
<FONT color="green">631</FONT>                    dataset, series<a name="line.631"></a>
<FONT color="green">632</FONT>                );<a name="line.632"></a>
<FONT color="green">633</FONT>                String description = label;<a name="line.633"></a>
<FONT color="green">634</FONT>                String toolTipText = null; <a name="line.634"></a>
<FONT color="green">635</FONT>                if (getLegendItemToolTipGenerator() != null) {<a name="line.635"></a>
<FONT color="green">636</FONT>                    toolTipText = getLegendItemToolTipGenerator().generateLabel(<a name="line.636"></a>
<FONT color="green">637</FONT>                        dataset, series<a name="line.637"></a>
<FONT color="green">638</FONT>                    );   <a name="line.638"></a>
<FONT color="green">639</FONT>                }<a name="line.639"></a>
<FONT color="green">640</FONT>                String urlText = null;<a name="line.640"></a>
<FONT color="green">641</FONT>                if (getLegendItemURLGenerator() != null) {<a name="line.641"></a>
<FONT color="green">642</FONT>                    urlText = getLegendItemURLGenerator().generateLabel(<a name="line.642"></a>
<FONT color="green">643</FONT>                        dataset, series<a name="line.643"></a>
<FONT color="green">644</FONT>                    );   <a name="line.644"></a>
<FONT color="green">645</FONT>                }<a name="line.645"></a>
<FONT color="green">646</FONT>                Shape shape = getSeriesShape(series);<a name="line.646"></a>
<FONT color="green">647</FONT>                Paint paint = getSeriesPaint(series);<a name="line.647"></a>
<FONT color="green">648</FONT>                Paint fillPaint = (this.useFillPaint <a name="line.648"></a>
<FONT color="green">649</FONT>                    ? getItemFillPaint(series, 0) : paint);<a name="line.649"></a>
<FONT color="green">650</FONT>                boolean shapeOutlineVisible = this.drawOutlines;<a name="line.650"></a>
<FONT color="green">651</FONT>                Paint outlinePaint = (this.useOutlinePaint <a name="line.651"></a>
<FONT color="green">652</FONT>                    ? getItemOutlinePaint(series, 0) : paint);<a name="line.652"></a>
<FONT color="green">653</FONT>                Stroke outlineStroke = getSeriesOutlineStroke(series);<a name="line.653"></a>
<FONT color="green">654</FONT>                boolean lineVisible = getItemLineVisible(series, 0);<a name="line.654"></a>
<FONT color="green">655</FONT>                boolean shapeVisible = getItemShapeVisible(series, 0);<a name="line.655"></a>
<FONT color="green">656</FONT>                return new LegendItem(label, description, toolTipText, <a name="line.656"></a>
<FONT color="green">657</FONT>                        urlText, shapeVisible, shape, getItemShapeFilled(series, 0),<a name="line.657"></a>
<FONT color="green">658</FONT>                        fillPaint, shapeOutlineVisible, outlinePaint, outlineStroke,<a name="line.658"></a>
<FONT color="green">659</FONT>                        lineVisible, new Line2D.Double(-7.0, 0.0, 7.0, 0.0),<a name="line.659"></a>
<FONT color="green">660</FONT>                        getItemStroke(series, 0), getItemPaint(series, 0));<a name="line.660"></a>
<FONT color="green">661</FONT>            }<a name="line.661"></a>
<FONT color="green">662</FONT>            return null;<a name="line.662"></a>
<FONT color="green">663</FONT>    <a name="line.663"></a>
<FONT color="green">664</FONT>        }<a name="line.664"></a>
<FONT color="green">665</FONT>    <a name="line.665"></a>
<FONT color="green">666</FONT>        /**<a name="line.666"></a>
<FONT color="green">667</FONT>         * This renderer uses two passes to draw the data.<a name="line.667"></a>
<FONT color="green">668</FONT>         * <a name="line.668"></a>
<FONT color="green">669</FONT>         * @return The pass count (&lt;code&gt;2&lt;/code&gt; for this renderer).<a name="line.669"></a>
<FONT color="green">670</FONT>         */<a name="line.670"></a>
<FONT color="green">671</FONT>        public int getPassCount() {<a name="line.671"></a>
<FONT color="green">672</FONT>            return 2;   <a name="line.672"></a>
<FONT color="green">673</FONT>        }<a name="line.673"></a>
<FONT color="green">674</FONT>        <a name="line.674"></a>
<FONT color="green">675</FONT>        /**<a name="line.675"></a>
<FONT color="green">676</FONT>         * Draw a single data item.<a name="line.676"></a>
<FONT color="green">677</FONT>         *<a name="line.677"></a>
<FONT color="green">678</FONT>         * @param g2  the graphics device.<a name="line.678"></a>
<FONT color="green">679</FONT>         * @param state  the renderer state.<a name="line.679"></a>
<FONT color="green">680</FONT>         * @param dataArea  the area in which the data is drawn.<a name="line.680"></a>
<FONT color="green">681</FONT>         * @param plot  the plot.<a name="line.681"></a>
<FONT color="green">682</FONT>         * @param domainAxis  the domain axis.<a name="line.682"></a>
<FONT color="green">683</FONT>         * @param rangeAxis  the range axis.<a name="line.683"></a>
<FONT color="green">684</FONT>         * @param dataset  the dataset.<a name="line.684"></a>
<FONT color="green">685</FONT>         * @param row  the row index (zero-based).<a name="line.685"></a>
<FONT color="green">686</FONT>         * @param column  the column index (zero-based).<a name="line.686"></a>
<FONT color="green">687</FONT>         * @param pass  the pass index.<a name="line.687"></a>
<FONT color="green">688</FONT>         */<a name="line.688"></a>
<FONT color="green">689</FONT>        public void drawItem(Graphics2D g2, CategoryItemRendererState state,<a name="line.689"></a>
<FONT color="green">690</FONT>                Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,<a name="line.690"></a>
<FONT color="green">691</FONT>                ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,<a name="line.691"></a>
<FONT color="green">692</FONT>                int pass) {<a name="line.692"></a>
<FONT color="green">693</FONT>    <a name="line.693"></a>
<FONT color="green">694</FONT>            // do nothing if item is not visible<a name="line.694"></a>
<FONT color="green">695</FONT>            if (!getItemVisible(row, column)) {<a name="line.695"></a>
<FONT color="green">696</FONT>                return;   <a name="line.696"></a>
<FONT color="green">697</FONT>            }<a name="line.697"></a>
<FONT color="green">698</FONT>            <a name="line.698"></a>
<FONT color="green">699</FONT>            // do nothing if both the line and shape are not visible<a name="line.699"></a>
<FONT color="green">700</FONT>            if (!getItemLineVisible(row, column) <a name="line.700"></a>
<FONT color="green">701</FONT>                    &amp;&amp; !getItemShapeVisible(row, column)) {<a name="line.701"></a>
<FONT color="green">702</FONT>                return;<a name="line.702"></a>
<FONT color="green">703</FONT>            }<a name="line.703"></a>
<FONT color="green">704</FONT>    <a name="line.704"></a>
<FONT color="green">705</FONT>            // nothing is drawn for null...<a name="line.705"></a>
<FONT color="green">706</FONT>            Number v = dataset.getValue(row, column);<a name="line.706"></a>
<FONT color="green">707</FONT>            if (v == null) {<a name="line.707"></a>
<FONT color="green">708</FONT>                return;<a name="line.708"></a>
<FONT color="green">709</FONT>            }<a name="line.709"></a>
<FONT color="green">710</FONT>    <a name="line.710"></a>
<FONT color="green">711</FONT>            PlotOrientation orientation = plot.getOrientation();<a name="line.711"></a>
<FONT color="green">712</FONT>    <a name="line.712"></a>
<FONT color="green">713</FONT>            // current data point...<a name="line.713"></a>
<FONT color="green">714</FONT>            double x1 = domainAxis.getCategoryMiddle(column, getColumnCount(), <a name="line.714"></a>
<FONT color="green">715</FONT>                    dataArea, plot.getDomainAxisEdge());<a name="line.715"></a>
<FONT color="green">716</FONT>            double value = v.doubleValue();<a name="line.716"></a>
<FONT color="green">717</FONT>            double y1 = rangeAxis.valueToJava2D(value, dataArea, <a name="line.717"></a>
<FONT color="green">718</FONT>                    plot.getRangeAxisEdge());<a name="line.718"></a>
<FONT color="green">719</FONT>    <a name="line.719"></a>
<FONT color="green">720</FONT>            if (pass == 0 &amp;&amp; getItemLineVisible(row, column)) {<a name="line.720"></a>
<FONT color="green">721</FONT>                if (column != 0) {<a name="line.721"></a>
<FONT color="green">722</FONT>                    Number previousValue = dataset.getValue(row, column - 1);<a name="line.722"></a>
<FONT color="green">723</FONT>                    if (previousValue != null) {<a name="line.723"></a>
<FONT color="green">724</FONT>                        // previous data point...<a name="line.724"></a>
<FONT color="green">725</FONT>                        double previous = previousValue.doubleValue();<a name="line.725"></a>
<FONT color="green">726</FONT>                        double x0 = domainAxis.getCategoryMiddle(column - 1, <a name="line.726"></a>
<FONT color="green">727</FONT>