abstractcategoryitemrenderer.html

jfreechart1。0。2的api。

<FONT color="green">562</FONT>            else {<a name="line.562"></a>
<FONT color="green">563</FONT>                this.rowCount = 0;<a name="line.563"></a>
<FONT color="green">564</FONT>                this.columnCount = 0;<a name="line.564"></a>
<FONT color="green">565</FONT>            }<a name="line.565"></a>
<FONT color="green">566</FONT>            return new CategoryItemRendererState(info);<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>    <a name="line.569"></a>
<FONT color="green">570</FONT>        /**<a name="line.570"></a>
<FONT color="green">571</FONT>         * Returns the range of values the renderer requires to display all the <a name="line.571"></a>
<FONT color="green">572</FONT>         * items from the specified dataset.<a name="line.572"></a>
<FONT color="green">573</FONT>         * <a name="line.573"></a>
<FONT color="green">574</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.574"></a>
<FONT color="green">575</FONT>         * <a name="line.575"></a>
<FONT color="green">576</FONT>         * @return The range (or &lt;code&gt;null&lt;/code&gt; if the dataset is <a name="line.576"></a>
<FONT color="green">577</FONT>         *         &lt;code&gt;null&lt;/code&gt; or empty).<a name="line.577"></a>
<FONT color="green">578</FONT>         */<a name="line.578"></a>
<FONT color="green">579</FONT>        public Range findRangeBounds(CategoryDataset dataset) {<a name="line.579"></a>
<FONT color="green">580</FONT>            return DatasetUtilities.findRangeBounds(dataset);   <a name="line.580"></a>
<FONT color="green">581</FONT>        }<a name="line.581"></a>
<FONT color="green">582</FONT>    <a name="line.582"></a>
<FONT color="green">583</FONT>        /**<a name="line.583"></a>
<FONT color="green">584</FONT>         * Draws a background for the data area.  The default implementation just <a name="line.584"></a>
<FONT color="green">585</FONT>         * gets the plot to draw the outline, but some renderers will override this<a name="line.585"></a>
<FONT color="green">586</FONT>         * behaviour.<a name="line.586"></a>
<FONT color="green">587</FONT>         *<a name="line.587"></a>
<FONT color="green">588</FONT>         * @param g2  the graphics device.<a name="line.588"></a>
<FONT color="green">589</FONT>         * @param plot  the plot.<a name="line.589"></a>
<FONT color="green">590</FONT>         * @param dataArea  the data area.<a name="line.590"></a>
<FONT color="green">591</FONT>         */<a name="line.591"></a>
<FONT color="green">592</FONT>        public void drawBackground(Graphics2D g2,<a name="line.592"></a>
<FONT color="green">593</FONT>                                   CategoryPlot plot,<a name="line.593"></a>
<FONT color="green">594</FONT>                                   Rectangle2D dataArea) {<a name="line.594"></a>
<FONT color="green">595</FONT>    <a name="line.595"></a>
<FONT color="green">596</FONT>            plot.drawBackground(g2, dataArea);<a name="line.596"></a>
<FONT color="green">597</FONT>    <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>         * Draws an outline for the data area.  The default implementation just <a name="line.601"></a>
<FONT color="green">602</FONT>         * gets the plot to draw the outline, but some renderers will override this<a name="line.602"></a>
<FONT color="green">603</FONT>         * behaviour.<a name="line.603"></a>
<FONT color="green">604</FONT>         *<a name="line.604"></a>
<FONT color="green">605</FONT>         * @param g2  the graphics device.<a name="line.605"></a>
<FONT color="green">606</FONT>         * @param plot  the plot.<a name="line.606"></a>
<FONT color="green">607</FONT>         * @param dataArea  the data area.<a name="line.607"></a>
<FONT color="green">608</FONT>         */<a name="line.608"></a>
<FONT color="green">609</FONT>        public void drawOutline(Graphics2D g2,<a name="line.609"></a>
<FONT color="green">610</FONT>                                CategoryPlot plot,<a name="line.610"></a>
<FONT color="green">611</FONT>                                Rectangle2D dataArea) {<a name="line.611"></a>
<FONT color="green">612</FONT>    <a name="line.612"></a>
<FONT color="green">613</FONT>            plot.drawOutline(g2, dataArea);<a name="line.613"></a>
<FONT color="green">614</FONT>    <a name="line.614"></a>
<FONT color="green">615</FONT>        }<a name="line.615"></a>
<FONT color="green">616</FONT>    <a name="line.616"></a>
<FONT color="green">617</FONT>        /**<a name="line.617"></a>
<FONT color="green">618</FONT>         * Draws a grid line against the domain axis.<a name="line.618"></a>
<FONT color="green">619</FONT>         * &lt;P&gt;<a name="line.619"></a>
<FONT color="green">620</FONT>         * Note that this default implementation assumes that the horizontal axis <a name="line.620"></a>
<FONT color="green">621</FONT>         * is the domain axis. If this is not the case, you will need to override <a name="line.621"></a>
<FONT color="green">622</FONT>         * this method.<a name="line.622"></a>
<FONT color="green">623</FONT>         *<a name="line.623"></a>
<FONT color="green">624</FONT>         * @param g2  the graphics device.<a name="line.624"></a>
<FONT color="green">625</FONT>         * @param plot  the plot.<a name="line.625"></a>
<FONT color="green">626</FONT>         * @param dataArea  the area for plotting data (not yet adjusted for any <a name="line.626"></a>
<FONT color="green">627</FONT>         *                  3D effect).<a name="line.627"></a>
<FONT color="green">628</FONT>         * @param value  the Java2D value at which the grid line should be drawn.<a name="line.628"></a>
<FONT color="green">629</FONT>         */<a name="line.629"></a>
<FONT color="green">630</FONT>        public void drawDomainGridline(Graphics2D g2,<a name="line.630"></a>
<FONT color="green">631</FONT>                                       CategoryPlot plot,<a name="line.631"></a>
<FONT color="green">632</FONT>                                       Rectangle2D dataArea,<a name="line.632"></a>
<FONT color="green">633</FONT>                                       double value) {<a name="line.633"></a>
<FONT color="green">634</FONT>    <a name="line.634"></a>
<FONT color="green">635</FONT>            Line2D line = null;<a name="line.635"></a>
<FONT color="green">636</FONT>            PlotOrientation orientation = plot.getOrientation();<a name="line.636"></a>
<FONT color="green">637</FONT>    <a name="line.637"></a>
<FONT color="green">638</FONT>            if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.638"></a>
<FONT color="green">639</FONT>                line = new Line2D.Double(dataArea.getMinX(), value, <a name="line.639"></a>
<FONT color="green">640</FONT>                        dataArea.getMaxX(), value);<a name="line.640"></a>
<FONT color="green">641</FONT>            }<a name="line.641"></a>
<FONT color="green">642</FONT>            else if (orientation == PlotOrientation.VERTICAL) {<a name="line.642"></a>
<FONT color="green">643</FONT>                line = new Line2D.Double(value, dataArea.getMinY(), value, <a name="line.643"></a>
<FONT color="green">644</FONT>                        dataArea.getMaxY());<a name="line.644"></a>
<FONT color="green">645</FONT>            }<a name="line.645"></a>
<FONT color="green">646</FONT>    <a name="line.646"></a>
<FONT color="green">647</FONT>            Paint paint = plot.getDomainGridlinePaint();<a name="line.647"></a>
<FONT color="green">648</FONT>            if (paint == null) {<a name="line.648"></a>
<FONT color="green">649</FONT>                paint = CategoryPlot.DEFAULT_GRIDLINE_PAINT;<a name="line.649"></a>
<FONT color="green">650</FONT>            }<a name="line.650"></a>
<FONT color="green">651</FONT>            g2.setPaint(paint);<a name="line.651"></a>
<FONT color="green">652</FONT>    <a name="line.652"></a>
<FONT color="green">653</FONT>            Stroke stroke = plot.getDomainGridlineStroke();<a name="line.653"></a>
<FONT color="green">654</FONT>            if (stroke == null) {<a name="line.654"></a>
<FONT color="green">655</FONT>                stroke = CategoryPlot.DEFAULT_GRIDLINE_STROKE;<a name="line.655"></a>
<FONT color="green">656</FONT>            }<a name="line.656"></a>
<FONT color="green">657</FONT>            g2.setStroke(stroke);<a name="line.657"></a>
<FONT color="green">658</FONT>    <a name="line.658"></a>
<FONT color="green">659</FONT>            g2.draw(line);<a name="line.659"></a>
<FONT color="green">660</FONT>    <a name="line.660"></a>
<FONT color="green">661</FONT>        }<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>         * Draws a grid line against the range axis.<a name="line.664"></a>
<FONT color="green">665</FONT>         *<a name="line.665"></a>
<FONT color="green">666</FONT>         * @param g2  the graphics device.<a name="line.666"></a>
<FONT color="green">667</FONT>         * @param plot  the plot.<a name="line.667"></a>
<FONT color="green">668</FONT>         * @param axis  the value axis.<a name="line.668"></a>
<FONT color="green">669</FONT>         * @param dataArea  the area for plotting data (not yet adjusted for any <a name="line.669"></a>
<FONT color="green">670</FONT>         *                  3D effect).<a name="line.670"></a>
<FONT color="green">671</FONT>         * @param value  the value at which the grid line should be drawn.<a name="line.671"></a>
<FONT color="green">672</FONT>         *<a name="line.672"></a>
<FONT color="green">673</FONT>         */<a name="line.673"></a>
<FONT color="green">674</FONT>        public void drawRangeGridline(Graphics2D g2,<a name="line.674"></a>
<FONT color="green">675</FONT>                                      CategoryPlot plot,<a name="line.675"></a>
<FONT color="green">676</FONT>                                      ValueAxis axis,<a name="line.676"></a>
<FONT color="green">677</FONT>                                      Rectangle2D dataArea,<a name="line.677"></a>
<FONT color="green">678</FONT>                                      double value) {<a name="line.678"></a>
<FONT color="green">679</FONT>    <a name="line.679"></a>
<FONT color="green">680</FONT>            Range range = axis.getRange();<a name="line.680"></a>
<FONT color="green">681</FONT>            if (!range.contains(value)) {<a name="line.681"></a>
<FONT color="green">682</FONT>                return;<a name="line.682"></a>
<FONT color="green">683</FONT>            }<a name="line.683"></a>
<FONT color="green">684</FONT>    <a name="line.684"></a>
<FONT color="green">685</FONT>            PlotOrientation orientation = plot.getOrientation();<a name="line.685"></a>
<FONT color="green">686</FONT>            double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());<a name="line.686"></a>
<FONT color="green">687</FONT>            Line2D line = null;<a name="line.687"></a>
<FONT color="green">688</FONT>            if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.688"></a>
<FONT color="green">689</FONT>                line = new Line2D.Double(v, dataArea.getMinY(), v, <a name="line.689"></a>
<FONT color="green">690</FONT>                        dataArea.getMaxY());<a name="line.690"></a>
<FONT color="green">691</FONT>            }<a name="line.691"></a>
<FONT color="green">692</FONT>            else if (orientation == PlotOrientation.VERTICAL) {<a name="line.692"></a>
<FONT color="green">693</FONT>                line = new Line2D.Double(dataArea.getMinX(), v, <a name="line.693"></a>
<FONT color="green">694</FONT>                        dataArea.getMaxX(), v);<a name="line.694"></a>
<FONT color="green">695</FONT>            }<a name="line.695"></a>
<FONT color="green">696</FONT>    <a name="line.696"></a>
<FONT color="green">697</FONT>            Paint paint = plot.getRangeGridlinePaint();<a name="line.697"></a>
<FONT color="green">698</FONT>            if (paint == null) {<a name="line.698"></a>
<FONT color="green">699</FONT>                paint