periodaxis.html

jfreechart1。0。2的api。

<FONT color="green">570</FONT>            for (int i = 0; i &lt; this.labelInfo.length; i++) {<a name="line.570"></a>
<FONT color="green">571</FONT>                PeriodAxisLabelInfo info = this.labelInfo[i];<a name="line.571"></a>
<FONT color="green">572</FONT>                FontMetrics fm = g2.getFontMetrics(info.getLabelFont());<a name="line.572"></a>
<FONT color="green">573</FONT>                tickLabelBandsDimension <a name="line.573"></a>
<FONT color="green">574</FONT>                    += info.getPadding().extendHeight(fm.getHeight());<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>            if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.577"></a>
<FONT color="green">578</FONT>                labelHeight = labelEnclosure.getHeight();<a name="line.578"></a>
<FONT color="green">579</FONT>                space.add(labelHeight + tickLabelBandsDimension, edge);<a name="line.579"></a>
<FONT color="green">580</FONT>            }<a name="line.580"></a>
<FONT color="green">581</FONT>            else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.581"></a>
<FONT color="green">582</FONT>                labelWidth = labelEnclosure.getWidth();<a name="line.582"></a>
<FONT color="green">583</FONT>                space.add(labelWidth + tickLabelBandsDimension, edge);<a name="line.583"></a>
<FONT color="green">584</FONT>            }<a name="line.584"></a>
<FONT color="green">585</FONT>    <a name="line.585"></a>
<FONT color="green">586</FONT>            // add space for the outer tick labels, if any...<a name="line.586"></a>
<FONT color="green">587</FONT>            double tickMarkSpace = 0.0;<a name="line.587"></a>
<FONT color="green">588</FONT>            if (isTickMarksVisible()) {<a name="line.588"></a>
<FONT color="green">589</FONT>                tickMarkSpace = getTickMarkOutsideLength();<a name="line.589"></a>
<FONT color="green">590</FONT>            }<a name="line.590"></a>
<FONT color="green">591</FONT>            if (this.minorTickMarksVisible) {<a name="line.591"></a>
<FONT color="green">592</FONT>                tickMarkSpace = Math.max(<a name="line.592"></a>
<FONT color="green">593</FONT>                    tickMarkSpace, this.minorTickMarkOutsideLength<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>            space.add(tickMarkSpace, edge);<a name="line.596"></a>
<FONT color="green">597</FONT>            return space;<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 the axis on a Java 2D graphics device (such as the screen or a <a name="line.601"></a>
<FONT color="green">602</FONT>         * printer).<a name="line.602"></a>
<FONT color="green">603</FONT>         *<a name="line.603"></a>
<FONT color="green">604</FONT>         * @param g2  the graphics device (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.604"></a>
<FONT color="green">605</FONT>         * @param cursor  the cursor location (determines where to draw the axis).<a name="line.605"></a>
<FONT color="green">606</FONT>         * @param plotArea  the area within which the axes and plot should be drawn.<a name="line.606"></a>
<FONT color="green">607</FONT>         * @param dataArea  the area within which the data should be drawn.<a name="line.607"></a>
<FONT color="green">608</FONT>         * @param edge  the axis location (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.608"></a>
<FONT color="green">609</FONT>         * @param plotState  collects information about the plot <a name="line.609"></a>
<FONT color="green">610</FONT>         *                   (&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 axis state (never &lt;code&gt;null&lt;/code&gt;).<a name="line.612"></a>
<FONT color="green">613</FONT>         */<a name="line.613"></a>
<FONT color="green">614</FONT>        public AxisState draw(Graphics2D g2, <a name="line.614"></a>
<FONT color="green">615</FONT>                              double cursor,<a name="line.615"></a>
<FONT color="green">616</FONT>                              Rectangle2D plotArea, <a name="line.616"></a>
<FONT color="green">617</FONT>                              Rectangle2D dataArea,<a name="line.617"></a>
<FONT color="green">618</FONT>                              RectangleEdge edge,<a name="line.618"></a>
<FONT color="green">619</FONT>                              PlotRenderingInfo plotState) {<a name="line.619"></a>
<FONT color="green">620</FONT>            <a name="line.620"></a>
<FONT color="green">621</FONT>            AxisState axisState = new AxisState(cursor);<a name="line.621"></a>
<FONT color="green">622</FONT>            if (isAxisLineVisible()) {<a name="line.622"></a>
<FONT color="green">623</FONT>                drawAxisLine(g2, cursor, dataArea, edge);<a name="line.623"></a>
<FONT color="green">624</FONT>            }<a name="line.624"></a>
<FONT color="green">625</FONT>            drawTickMarks(g2, axisState, dataArea, edge);<a name="line.625"></a>
<FONT color="green">626</FONT>            for (int band = 0; band &lt; this.labelInfo.length; band++) {<a name="line.626"></a>
<FONT color="green">627</FONT>                axisState = drawTickLabels(band, g2, axisState, dataArea, edge);<a name="line.627"></a>
<FONT color="green">628</FONT>            }<a name="line.628"></a>
<FONT color="green">629</FONT>            <a name="line.629"></a>
<FONT color="green">630</FONT>            // draw the axis label (note that 'state' is passed in *and* <a name="line.630"></a>
<FONT color="green">631</FONT>            // returned)...<a name="line.631"></a>
<FONT color="green">632</FONT>            axisState = drawLabel(<a name="line.632"></a>
<FONT color="green">633</FONT>                getLabel(), g2, plotArea, dataArea, edge, axisState<a name="line.633"></a>
<FONT color="green">634</FONT>            );<a name="line.634"></a>
<FONT color="green">635</FONT>            return axisState;<a name="line.635"></a>
<FONT color="green">636</FONT>            <a name="line.636"></a>
<FONT color="green">637</FONT>        }<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>         * Draws the tick marks for the axis.<a name="line.640"></a>
<FONT color="green">641</FONT>         * <a name="line.641"></a>
<FONT color="green">642</FONT>         * @param g2  the graphics device.<a name="line.642"></a>
<FONT color="green">643</FONT>         * @param state  the axis state.<a name="line.643"></a>
<FONT color="green">644</FONT>         * @param dataArea  the data area.<a name="line.644"></a>
<FONT color="green">645</FONT>         * @param edge  the edge.<a name="line.645"></a>
<FONT color="green">646</FONT>         */<a name="line.646"></a>
<FONT color="green">647</FONT>        protected void drawTickMarks(Graphics2D g2, AxisState state, <a name="line.647"></a>
<FONT color="green">648</FONT>                                     Rectangle2D dataArea, <a name="line.648"></a>
<FONT color="green">649</FONT>                                     RectangleEdge edge) {<a name="line.649"></a>
<FONT color="green">650</FONT>            if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.650"></a>
<FONT color="green">651</FONT>                drawTickMarksHorizontal(g2, state, dataArea, edge);<a name="line.651"></a>
<FONT color="green">652</FONT>            }<a name="line.652"></a>
<FONT color="green">653</FONT>            else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.653"></a>
<FONT color="green">654</FONT>                drawTickMarksVertical(g2, state, dataArea, edge);<a name="line.654"></a>
<FONT color="green">655</FONT>            }<a name="line.655"></a>
<FONT color="green">656</FONT>        }<a name="line.656"></a>
<FONT color="green">657</FONT>        <a name="line.657"></a>
<FONT color="green">658</FONT>        /**<a name="line.658"></a>
<FONT color="green">659</FONT>         * Draws the major and minor tick marks for an axis that lies at the top or <a name="line.659"></a>
<FONT color="green">660</FONT>         * bottom of the plot.<a name="line.660"></a>
<FONT color="green">661</FONT>         * <a name="line.661"></a>
<FONT color="green">662</FONT>         * @param g2  the graphics device.<a name="line.662"></a>
<FONT color="green">663</FONT>         * @param state  the axis state.<a name="line.663"></a>
<FONT color="green">664</FONT>         * @param dataArea  the data area.<a name="line.664"></a>
<FONT color="green">665</FONT>         * @param edge  the edge.<a name="line.665"></a>
<FONT color="green">666</FONT>         */<a name="line.666"></a>
<FONT color="green">667</FONT>        protected void drawTickMarksHorizontal(Graphics2D g2, AxisState state, <a name="line.667"></a>
<FONT color="green">668</FONT>                                               Rectangle2D dataArea, <a name="line.668"></a>
<FONT color="green">669</FONT>                                               RectangleEdge edge) {<a name="line.669"></a>
<FONT color="green">670</FONT>            List ticks = new ArrayList();<a name="line.670"></a>
<FONT color="green">671</FONT>            double x0 = dataArea.getX();<a name="line.671"></a>
<FONT color="green">672</FONT>            double y0 = state.getCursor();<a name="line.672"></a>
<FONT color="green">673</FONT>            double insideLength = getTickMarkInsideLength();<a name="line.673"></a>
<FONT color="green">674</FONT>            double outsideLength = getTickMarkOutsideLength();<a name="line.674"></a>
<FONT color="green">675</FONT>            RegularTimePeriod t = RegularTimePeriod.createInstance(<a name="line.675"></a>
<FONT color="green">676</FONT>                this.majorTickTimePeriodClass, this.first.getStart(), getTimeZone()<a name="line.676"></a>
<FONT color="green">677</FONT>            );<a name="line.677"></a>
<FONT color="green">678</FONT>            long t0 = t.getFirstMillisecond(getTimeZone());<a name="line.678"></a>
<FONT color="green">679</FONT>            Line2D inside = null;<a name="line.679"></a>
<FONT color="green">680</FONT>            Line2D outside = null;<a name="line.680"></a>
<FONT color="green">681</FONT>            long firstOnAxis = getFirst().getFirstMillisecond(getTimeZone());<a name="line.681"></a>
<FONT color="green">682</FONT>            long lastOnAxis = getLast().getLastMillisecond(getTimeZone());<a name="line.682"></a>
<FONT color="green">683</FONT>            while (t0 &lt;= lastOnAxis) {<a name="line.683"></a>
<FONT color="green">684</FONT>                ticks.add(new NumberTick(new Double(t0), "", TextAnchor.CENTER, TextAnchor.CENTER, 0.0));<a name="line.684"></a>
<FONT color="green">685</FONT>                x0 = valueToJava2D(t0, dataArea, edge);<a name="line.685"></a>
<FONT color="green">686</FONT>                if (edge == RectangleEdge.TOP) {<a name="line.686"></a>
<FONT color="green">687</FONT>                    inside = new Line2D.Double(x0, y0, x0, y0 + insideLength);  <a name="line.687"></a>
<FONT color="green">688</FONT>                    outside = new Line2D.Double(x0, y0, x0, y0 - outsideLength);<a name="line.688"></a>
<FONT color="green">689</FONT>                }<a name="line.689"></a>
<FONT color="green">690</FONT>                else if (edge == RectangleEdge.BOTTOM) {<a name="line.690"></a>
<FONT color="green">691</FONT>                    inside = new Line2D.Double(x0, y0, x0, y0 - insideLength);<a name="line.691"></a>
<FONT color="green">692</FONT>                    outside = new Line2D.Double(x0, y0, x0, y0 + outsideLength);<a name="line.692"></a>
<FONT color="green">693</FONT>                }<a name="line.693"></a>
<FONT color="green">694</FONT>                if (t0 &gt; firstOnAxis) {<a name="line.694"></a>
<FONT color="green">695</FONT>                    g2.setPaint(getTickMarkPaint());<a name="line.695"></a>
<FONT color="green">696</FONT>                    g2.setStroke(getTickMarkStroke());<a name="line.696"></a>
<FONT color="green">697</FONT>                    g2.draw(inside);<a name="line.697"></a>
<FONT color="green">698</FONT>                    g2.draw(outside);<a name="line.698"></a>
<FONT color="green">699</FONT>                }<a name="line.699"></a>
<FONT color="green">700</FONT>                // draw minor tick marks<a name="line.700"></a>
<FONT color="green">701</FONT>                if (this.minorTickMarksVisible) {<a name="line.701"></a>
<FONT color="green">702</FONT>                    RegularTimePeriod tminor = RegularTimePeriod.createInstance(<a name="line.702"></a>
<FONT color="green">703</FONT>                        this.minorTickTimePeriodClass, new Date(t0), getTimeZone()<a name="line.703"></a>
<FONT color="green">704</FONT>                    );<a name="line.704"></a>
<FONT color="green">705</FONT>                    long tt0 = tminor.getFirstMillisecond(getTimeZone());<a name="line.705"></a>
<FONT color="green">706</FONT>                    while (tt0 &lt; t.getLastMillisecond(getTimeZone()) <a name="line.706"></a>
<FONT color="green">707</FONT>                            &amp;&amp; tt0 &lt; lastOnAxis) {<a name="line.707"></a>
<FONT color="green">708</FONT>                        double xx0 = valueToJava2D(tt0, dataArea, edge);<a name="line.708"></a>
<FONT color="green">709</FONT>                        if (edge == RectangleEdge.TOP) {<a name="line.709"></a>
<FONT color="green">710</FON