meterplot.html

jfreechart1。0。2的api。

<FONT color="green">586</FONT>         */<a name="line.586"></a>
<FONT color="green">587</FONT>        public boolean getDrawBorder() {<a name="line.587"></a>
<FONT color="green">588</FONT>            return this.drawBorder;<a name="line.588"></a>
<FONT color="green">589</FONT>        }<a name="line.589"></a>
<FONT color="green">590</FONT>    <a name="line.590"></a>
<FONT color="green">591</FONT>        /**<a name="line.591"></a>
<FONT color="green">592</FONT>         * Sets the flag that controls whether or not a rectangular border is drawn<a name="line.592"></a>
<FONT color="green">593</FONT>         * around the plot area and sends a {@link PlotChangeEvent} to all <a name="line.593"></a>
<FONT color="green">594</FONT>         * registered listeners.<a name="line.594"></a>
<FONT color="green">595</FONT>         *<a name="line.595"></a>
<FONT color="green">596</FONT>         * @param draw  the flag.<a name="line.596"></a>
<FONT color="green">597</FONT>         */<a name="line.597"></a>
<FONT color="green">598</FONT>        public void setDrawBorder(boolean draw) {<a name="line.598"></a>
<FONT color="green">599</FONT>            // TODO: fix output when this flag is set to true<a name="line.599"></a>
<FONT color="green">600</FONT>            this.drawBorder = draw;<a name="line.600"></a>
<FONT color="green">601</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.601"></a>
<FONT color="green">602</FONT>        }<a name="line.602"></a>
<FONT color="green">603</FONT>    <a name="line.603"></a>
<FONT color="green">604</FONT>        /**<a name="line.604"></a>
<FONT color="green">605</FONT>         * Returns the dial outline paint.<a name="line.605"></a>
<FONT color="green">606</FONT>         *<a name="line.606"></a>
<FONT color="green">607</FONT>         * @return The paint.<a name="line.607"></a>
<FONT color="green">608</FONT>         */<a name="line.608"></a>
<FONT color="green">609</FONT>        public Paint getDialOutlinePaint() {<a name="line.609"></a>
<FONT color="green">610</FONT>            return this.dialOutlinePaint;<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>        /**<a name="line.613"></a>
<FONT color="green">614</FONT>         * Sets the dial outline paint and sends a {@link PlotChangeEvent} to all<a name="line.614"></a>
<FONT color="green">615</FONT>         * registered listeners.<a name="line.615"></a>
<FONT color="green">616</FONT>         *<a name="line.616"></a>
<FONT color="green">617</FONT>         * @param paint  the paint.<a name="line.617"></a>
<FONT color="green">618</FONT>         */<a name="line.618"></a>
<FONT color="green">619</FONT>        public void setDialOutlinePaint(Paint paint) {<a name="line.619"></a>
<FONT color="green">620</FONT>            this.dialOutlinePaint = paint;<a name="line.620"></a>
<FONT color="green">621</FONT>            notifyListeners(new PlotChangeEvent(this));        <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 dataset for the plot.<a name="line.625"></a>
<FONT color="green">626</FONT>         * <a name="line.626"></a>
<FONT color="green">627</FONT>         * @return The dataset (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.627"></a>
<FONT color="green">628</FONT>         */<a name="line.628"></a>
<FONT color="green">629</FONT>        public ValueDataset getDataset() {<a name="line.629"></a>
<FONT color="green">630</FONT>            return this.dataset;<a name="line.630"></a>
<FONT color="green">631</FONT>        }<a name="line.631"></a>
<FONT color="green">632</FONT>        <a name="line.632"></a>
<FONT color="green">633</FONT>        /**<a name="line.633"></a>
<FONT color="green">634</FONT>         * Sets the dataset for the plot, replacing the existing dataset if there <a name="line.634"></a>
<FONT color="green">635</FONT>         * is one, and triggers a {@link PlotChangeEvent}.<a name="line.635"></a>
<FONT color="green">636</FONT>         * <a name="line.636"></a>
<FONT color="green">637</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.637"></a>
<FONT color="green">638</FONT>         */<a name="line.638"></a>
<FONT color="green">639</FONT>        public void setDataset(ValueDataset dataset) {<a name="line.639"></a>
<FONT color="green">640</FONT>            <a name="line.640"></a>
<FONT color="green">641</FONT>            // if there is an existing dataset, remove the plot from the list of <a name="line.641"></a>
<FONT color="green">642</FONT>            // change listeners...<a name="line.642"></a>
<FONT color="green">643</FONT>            ValueDataset existing = this.dataset;<a name="line.643"></a>
<FONT color="green">644</FONT>            if (existing != null) {<a name="line.644"></a>
<FONT color="green">645</FONT>                existing.removeChangeListener(this);<a name="line.645"></a>
<FONT color="green">646</FONT>            }<a name="line.646"></a>
<FONT color="green">647</FONT>    <a name="line.647"></a>
<FONT color="green">648</FONT>            // set the new dataset, and register the chart as a change listener...<a name="line.648"></a>
<FONT color="green">649</FONT>            this.dataset = dataset;<a name="line.649"></a>
<FONT color="green">650</FONT>            if (dataset != null) {<a name="line.650"></a>
<FONT color="green">651</FONT>                setDatasetGroup(dataset.getGroup());<a name="line.651"></a>
<FONT color="green">652</FONT>                dataset.addChangeListener(this);<a name="line.652"></a>
<FONT color="green">653</FONT>            }<a name="line.653"></a>
<FONT color="green">654</FONT>    <a name="line.654"></a>
<FONT color="green">655</FONT>            // send a dataset change event to self...<a name="line.655"></a>
<FONT color="green">656</FONT>            DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);<a name="line.656"></a>
<FONT color="green">657</FONT>            datasetChanged(event);<a name="line.657"></a>
<FONT color="green">658</FONT>            <a name="line.658"></a>
<FONT color="green">659</FONT>        }<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>         * Returns an unmodifiable list of the intervals for the plot.<a name="line.662"></a>
<FONT color="green">663</FONT>         * <a name="line.663"></a>
<FONT color="green">664</FONT>         * @return A list.<a name="line.664"></a>
<FONT color="green">665</FONT>         */<a name="line.665"></a>
<FONT color="green">666</FONT>        public List getIntervals() {<a name="line.666"></a>
<FONT color="green">667</FONT>            return Collections.unmodifiableList(this.intervals);<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>         * Adds an interval and sends a {@link PlotChangeEvent} to all registered<a name="line.671"></a>
<FONT color="green">672</FONT>         * listeners.<a name="line.672"></a>
<FONT color="green">673</FONT>         * <a name="line.673"></a>
<FONT color="green">674</FONT>         * @param interval  the interval (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.674"></a>
<FONT color="green">675</FONT>         */<a name="line.675"></a>
<FONT color="green">676</FONT>        public void addInterval(MeterInterval interval) {<a name="line.676"></a>
<FONT color="green">677</FONT>            if (interval == null) {<a name="line.677"></a>
<FONT color="green">678</FONT>                throw new IllegalArgumentException("Null 'interval' argument.");<a name="line.678"></a>
<FONT color="green">679</FONT>            }<a name="line.679"></a>
<FONT color="green">680</FONT>            this.intervals.add(interval);<a name="line.680"></a>
<FONT color="green">681</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.681"></a>
<FONT color="green">682</FONT>        }<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>         * Clears the intervals for the plot and sends a {@link PlotChangeEvent} to<a name="line.685"></a>
<FONT color="green">686</FONT>         * all registered listeners. <a name="line.686"></a>
<FONT color="green">687</FONT>         */<a name="line.687"></a>
<FONT color="green">688</FONT>        public void clearIntervals() {<a name="line.688"></a>
<FONT color="green">689</FONT>            this.intervals.clear();<a name="line.689"></a>
<FONT color="green">690</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.690"></a>
<FONT color="green">691</FONT>        }<a name="line.691"></a>
<FONT color="green">692</FONT>        <a name="line.692"></a>
<FONT color="green">693</FONT>        /**<a name="line.693"></a>
<FONT color="green">694</FONT>         * Returns an item for each interval.<a name="line.694"></a>
<FONT color="green">695</FONT>         *<a name="line.695"></a>
<FONT color="green">696</FONT>         * @return A collection of legend items.<a name="line.696"></a>
<FONT color="green">697</FONT>         */<a name="line.697"></a>
<FONT color="green">698</FONT>        public LegendItemCollection getLegendItems() {<a name="line.698"></a>
<FONT color="green">699</FONT>            LegendItemCollection result = new LegendItemCollection();<a name="line.699"></a>
<FONT color="green">700</FONT>            Iterator iterator = this.intervals.iterator();<a name="line.700"></a>
<FONT color="green">701</FONT>            while (iterator.hasNext()) {<a name="line.701"></a>
<FONT color="green">702</FONT>                MeterInterval mi = (MeterInterval) iterator.next();<a name="line.702"></a>
<FONT color="green">703</FONT>                Paint color = mi.getBackgroundPaint();<a name="line.703"></a>
<FONT color="green">704</FONT>                if (color == null) {<a name="line.704"></a>
<FONT color="green">705</FONT>                    color = mi.getOutlinePaint();<a name="line.705"></a>
<FONT color="green">706</FONT>                }<a name="line.706"></a>
<FONT color="green">707</FONT>                LegendItem item = new LegendItem(mi.getLabel(), mi.getLabel(),<a name="line.707"></a>
<FONT color="green">708</FONT>                        null, null, new Rectangle2D.Double(-4.0, -4.0, 8.0, 8.0), <a name="line.708"></a>
<FONT color="green">709</FONT>                        color);<a name="line.709"></a>
<FONT color="green">710</FONT>                result.add(item);<a name="line.710"></a>
<FONT color="green">711</FONT>            }<a name="line.711"></a>
<FONT color="green">712</FONT>            return result;<a name="line.712"></a>
<FONT color="green">713</FONT>        }<a name="line.713"></a>
<FONT color="green">714</FONT>    <a name="line.714"></a>
<FONT color="green">715</FONT>        /**<a name="line.715"></a>
<FONT color="green">716</FONT>         * Draws the plot on a Java 2D graphics device (such as the screen or a <a name="line.716"></a>
<FONT color="green">717</FONT>         * printer).<a name="line.717"></a>
<FONT color="green">718</FONT>         *<a name="line.718"></a>
<FONT color="green">719</FONT>         * @param g2  the graphics device.<a name="line.719"></a>
<FONT color="green">720</FONT>         * @param area  the area within which the plot should be drawn.<a name="line.720"></a>
<FONT color="green">721</FONT>         * @param anchor  the anchor point (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.721"></a>
<FONT color="green">722</FONT>         * @param parentState  the state from the parent plot, if there is one.<a name="line.722"></a>
<FONT color="green">723</FONT>         * @param info  collects info about the drawing.<a name="line.723"></a>
<FONT color="green">724</FONT>         */<a name="line.724"></a>
<FONT color="green">725</FONT>        public void draw(Graphics2D g2, Rectangle2D area, Point2D anchor,<a name="line.725"></a>
<FONT color="green">726</FONT>                         PlotState parentState,<a name="line.726"></a>
<FONT color="green">727</FONT>                         PlotRenderingInfo info) {<a name="line.727"></a>
<FONT color="green">728</FONT>    <a name="line.728"></a>
<FONT color="green">729</FONT>            if (info != null) {<a name="line.729"></a>
<FONT color="green">730</FONT>                info.setPlotArea(area);<a name="line.730"></a>
<FONT color="green">731</FONT>            }<a name="line.731"></a>
<FONT color="green">732</FONT>