abstractxyitemrenderer.html

jfreechart1。0。2的api。

<FONT color="green">562</FONT>            if (generator == null) {<a name="line.562"></a>
<FONT color="green">563</FONT>                throw new IllegalArgumentException("Null 'generator' argument.");<a name="line.563"></a>
<FONT color="green">564</FONT>            }<a name="line.564"></a>
<FONT color="green">565</FONT>            this.legendItemLabelGenerator = generator;<a name="line.565"></a>
<FONT color="green">566</FONT>        }<a name="line.566"></a>
<FONT color="green">567</FONT>        <a name="line.567"></a>
<FONT color="green">568</FONT>        /**<a name="line.568"></a>
<FONT color="green">569</FONT>         * Returns the legend item tool tip generator.<a name="line.569"></a>
<FONT color="green">570</FONT>         * <a name="line.570"></a>
<FONT color="green">571</FONT>         * @return The tool tip generator (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.571"></a>
<FONT color="green">572</FONT>         */<a name="line.572"></a>
<FONT color="green">573</FONT>        public XYSeriesLabelGenerator getLegendItemToolTipGenerator() {<a name="line.573"></a>
<FONT color="green">574</FONT>            return this.legendItemToolTipGenerator;<a name="line.574"></a>
<FONT color="green">575</FONT>        }<a name="line.575"></a>
<FONT color="green">576</FONT>        <a name="line.576"></a>
<FONT color="green">577</FONT>        /**<a name="line.577"></a>
<FONT color="green">578</FONT>         * Sets the legend item tool tip generator.<a name="line.578"></a>
<FONT color="green">579</FONT>         * <a name="line.579"></a>
<FONT color="green">580</FONT>         * @param generator  the generator (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.580"></a>
<FONT color="green">581</FONT>         */<a name="line.581"></a>
<FONT color="green">582</FONT>        public void setLegendItemToolTipGenerator(XYSeriesLabelGenerator generator) <a name="line.582"></a>
<FONT color="green">583</FONT>        {<a name="line.583"></a>
<FONT color="green">584</FONT>            this.legendItemToolTipGenerator = generator;<a name="line.584"></a>
<FONT color="green">585</FONT>        }<a name="line.585"></a>
<FONT color="green">586</FONT>        <a name="line.586"></a>
<FONT color="green">587</FONT>        /**<a name="line.587"></a>
<FONT color="green">588</FONT>         * Returns the legend item URL generator.<a name="line.588"></a>
<FONT color="green">589</FONT>         * <a name="line.589"></a>
<FONT color="green">590</FONT>         * @return The URL generator (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.590"></a>
<FONT color="green">591</FONT>         */<a name="line.591"></a>
<FONT color="green">592</FONT>        public XYSeriesLabelGenerator getLegendItemURLGenerator() {<a name="line.592"></a>
<FONT color="green">593</FONT>            return this.legendItemURLGenerator;<a name="line.593"></a>
<FONT color="green">594</FONT>        }<a name="line.594"></a>
<FONT color="green">595</FONT>        <a name="line.595"></a>
<FONT color="green">596</FONT>        /**<a name="line.596"></a>
<FONT color="green">597</FONT>         * Sets the legend item URL generator.<a name="line.597"></a>
<FONT color="green">598</FONT>         * <a name="line.598"></a>
<FONT color="green">599</FONT>         * @param generator  the generator (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.599"></a>
<FONT color="green">600</FONT>         */<a name="line.600"></a>
<FONT color="green">601</FONT>        public void setLegendItemURLGenerator(XYSeriesLabelGenerator generator) <a name="line.601"></a>
<FONT color="green">602</FONT>        {<a name="line.602"></a>
<FONT color="green">603</FONT>            this.legendItemURLGenerator = generator;<a name="line.603"></a>
<FONT color="green">604</FONT>        }<a name="line.604"></a>
<FONT color="green">605</FONT>        <a name="line.605"></a>
<FONT color="green">606</FONT>        /**<a name="line.606"></a>
<FONT color="green">607</FONT>         * Returns the lower and upper bounds (range) of the x-values in the <a name="line.607"></a>
<FONT color="green">608</FONT>         * specified dataset.<a name="line.608"></a>
<FONT color="green">609</FONT>         * <a name="line.609"></a>
<FONT color="green">610</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.610"></a>
<FONT color="green">611</FONT>         * <a name="line.611"></a>
<FONT color="green">612</FONT>         * @return The range (&lt;code&gt;null&lt;/code&gt; if the dataset is &lt;code&gt;null&lt;/code&gt;<a name="line.612"></a>
<FONT color="green">613</FONT>         *         or empty).<a name="line.613"></a>
<FONT color="green">614</FONT>         */<a name="line.614"></a>
<FONT color="green">615</FONT>        public Range findDomainBounds(XYDataset dataset) {<a name="line.615"></a>
<FONT color="green">616</FONT>            if (dataset != null) {<a name="line.616"></a>
<FONT color="green">617</FONT>                return DatasetUtilities.findDomainBounds(dataset, false);<a name="line.617"></a>
<FONT color="green">618</FONT>            }<a name="line.618"></a>
<FONT color="green">619</FONT>            else {<a name="line.619"></a>
<FONT color="green">620</FONT>                return null;<a name="line.620"></a>
<FONT color="green">621</FONT>            }<a name="line.621"></a>
<FONT color="green">622</FONT>        }<a name="line.622"></a>
<FONT color="green">623</FONT>    <a name="line.623"></a>
<FONT color="green">624</FONT>        /**<a name="line.624"></a>
<FONT color="green">625</FONT>         * Returns the range of values the renderer requires to display all the <a name="line.625"></a>
<FONT color="green">626</FONT>         * items from the specified dataset.<a name="line.626"></a>
<FONT color="green">627</FONT>         * <a name="line.627"></a>
<FONT color="green">628</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.628"></a>
<FONT color="green">629</FONT>         * <a name="line.629"></a>
<FONT color="green">630</FONT>         * @return The range (&lt;code&gt;null&lt;/code&gt; if the dataset is &lt;code&gt;null&lt;/code&gt; <a name="line.630"></a>
<FONT color="green">631</FONT>         *         or empty).<a name="line.631"></a>
<FONT color="green">632</FONT>         */<a name="line.632"></a>
<FONT color="green">633</FONT>        public Range findRangeBounds(XYDataset dataset) {<a name="line.633"></a>
<FONT color="green">634</FONT>            if (dataset != null) {<a name="line.634"></a>
<FONT color="green">635</FONT>                return DatasetUtilities.findRangeBounds(dataset, false);<a name="line.635"></a>
<FONT color="green">636</FONT>            }<a name="line.636"></a>
<FONT color="green">637</FONT>            else {<a name="line.637"></a>
<FONT color="green">638</FONT>                return null;<a name="line.638"></a>
<FONT color="green">639</FONT>            }<a name="line.639"></a>
<FONT color="green">640</FONT>        }<a name="line.640"></a>
<FONT color="green">641</FONT>    <a name="line.641"></a>
<FONT color="green">642</FONT>        /**<a name="line.642"></a>
<FONT color="green">643</FONT>         * Returns a (possibly empty) collection of legend items for the series<a name="line.643"></a>
<FONT color="green">644</FONT>         * that this renderer is responsible for drawing.<a name="line.644"></a>
<FONT color="green">645</FONT>         *<a name="line.645"></a>
<FONT color="green">646</FONT>         * @return The legend item collection (never &lt;code&gt;null&lt;/code&gt;).<a name="line.646"></a>
<FONT color="green">647</FONT>         */<a name="line.647"></a>
<FONT color="green">648</FONT>        public LegendItemCollection getLegendItems() {<a name="line.648"></a>
<FONT color="green">649</FONT>            if (this.plot == null) {<a name="line.649"></a>
<FONT color="green">650</FONT>                return new LegendItemCollection();<a name="line.650"></a>
<FONT color="green">651</FONT>            }<a name="line.651"></a>
<FONT color="green">652</FONT>            LegendItemCollection result = new LegendItemCollection();<a name="line.652"></a>
<FONT color="green">653</FONT>            int index = this.plot.getIndexOf(this);<a name="line.653"></a>
<FONT color="green">654</FONT>            XYDataset dataset = this.plot.getDataset(index);<a name="line.654"></a>
<FONT color="green">655</FONT>            if (dataset != null) {<a name="line.655"></a>
<FONT color="green">656</FONT>                int seriesCount = dataset.getSeriesCount();<a name="line.656"></a>
<FONT color="green">657</FONT>                for (int i = 0; i &lt; seriesCount; i++) {<a name="line.657"></a>
<FONT color="green">658</FONT>                    if (isSeriesVisibleInLegend(i)) {<a name="line.658"></a>
<FONT color="green">659</FONT>                        LegendItem item = getLegendItem(index, i);<a name="line.659"></a>
<FONT color="green">660</FONT>                        if (item != null) {<a name="line.660"></a>
<FONT color="green">661</FONT>                            result.add(item);<a name="line.661"></a>
<FONT color="green">662</FONT>                        }<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>            return result;<a name="line.667"></a>
<FONT color="green">668</FONT>        }<a name="line.668"></a>
<FONT color="green">669</FONT>    <a name="line.669"></a>
<FONT color="green">670</FONT>        /**<a name="line.670"></a>
<FONT color="green">671</FONT>         * Returns a default legend item for the specified series.  Subclasses <a name="line.671"></a>
<FONT color="green">672</FONT>         * should override this method to generate customised items.<a name="line.672"></a>
<FONT color="green">673</FONT>         *<a name="line.673"></a>
<FONT color="green">674</FONT>         * @param datasetIndex  the dataset index (zero-based).<a name="line.674"></a>
<FONT color="green">675</FONT>         * @param series  the series index (zero-based).<a name="line.675"></a>
<FONT color="green">676</FONT>         *<a name="line.676"></a>
<FONT color="green">677</FONT>         * @return A legend item for the series.<a name="line.677"></a>
<FONT color="green">678</FONT>         */<a name="line.678"></a>
<FONT color="green">679</FONT>        public LegendItem getLegendItem(int datasetIndex, int series) {<a name="line.679"></a>
<FONT color="green">680</FONT>            LegendItem result = null;<a name="line.680"></a>
<FONT color="green">681</FONT>            XYPlot xyplot = getPlot();<a name="line.681"></a>
<FONT color="green">682</FONT>            if (xyplot != null) {<a name="line.682"></a>
<FONT color="green">683</FONT>                XYDataset dataset = xyplot.getDataset(datasetIndex);<a name="line.683"></a>
<FONT color="green">684</FONT>                if (dataset != null) {<a name="line.684"></a>
<FONT color="green">685</FONT>                    String label = this.legendItemLabelGenerator.generateLabel(<a name="line.685"></a>
<FONT color="green">686</FONT>                            dataset, series);<a name="line.686"></a>
<FONT color="green">687</FONT>                    String description = label;<a name="line.687"></a>
<FONT color="green">688</FONT>                    String toolTipText = null;<a name="line.688"></a>
<FONT color="green">689</FONT>                    if (getLegendItemToolTipGenerator() != null) {<a name="line.689"></a>
<FONT color="green">690</FONT>                        toolTipText = getLegendItemToolTipGenerator().generateLabel(<a name="line.690"></a>
<FONT color="green">691</FONT>                                dataset, series);<a name="line.691"></a>
<FONT color="green">692</FONT>                    }<a name="line.692"></a>
<FONT color="green">693</FONT>                    String urlText = null;<a name="line.693"></a>
<FONT color="green">694</FONT>                    if (getLegendItemURLGenerator() != null) {<a name="line.694"></a>
<FONT color="green">695</FONT>                        urlText = getLegendItemURLGenerator().generateLabel(<a name="line.695"></a>
<FONT color="green">696</FONT>                                dataset, series);<a name="line.696"></a>
<FONT color="green">697</FONT>                    }<a name="line.697"></a>
<FONT color="green">698</FONT>                    Shape shape = getSeriesShape(series);<a name="line.698"></a>
<FONT color="green">699</FONT>                    Paint paint = getSeriesPaint(series);<a name="line.699"></a>
<FONT color="green">700</FONT>                    Paint outlinePaint = getSeriesOutlinePaint(series);<a name="line.700"></a>
<FONT color="green">701</FONT>                    Stroke outlineStroke = getSeriesOutlineStroke(series);<a name="line.701"></a>
<FONT color="green">702</FONT>                    result