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jfreechart1。0。2的api。

<FONT color="green">318</FONT>        <a name="line.318"></a>
<FONT color="green">319</FONT>        /**<a name="line.319"></a>
<FONT color="green">320</FONT>         * Returns a hash code for a &lt;code&gt;Paint&lt;/code&gt; instance.  This method<a name="line.320"></a>
<FONT color="green">321</FONT>         * should be added to JCommon.<a name="line.321"></a>
<FONT color="green">322</FONT>         * <a name="line.322"></a>
<FONT color="green">323</FONT>         * @param p  the paint (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.323"></a>
<FONT color="green">324</FONT>         * <a name="line.324"></a>
<FONT color="green">325</FONT>         * @return The hash code.<a name="line.325"></a>
<FONT color="green">326</FONT>         */<a name="line.326"></a>
<FONT color="green">327</FONT>        private static int hashCodeForPaint(Paint p) {<a name="line.327"></a>
<FONT color="green">328</FONT>            if (p == null) <a name="line.328"></a>
<FONT color="green">329</FONT>                return 0;<a name="line.329"></a>
<FONT color="green">330</FONT>            int result = 0;<a name="line.330"></a>
<FONT color="green">331</FONT>            // handle GradientPaint as a special case<a name="line.331"></a>
<FONT color="green">332</FONT>            if (p instanceof GradientPaint) {<a name="line.332"></a>
<FONT color="green">333</FONT>                GradientPaint gp = (GradientPaint) p;<a name="line.333"></a>
<FONT color="green">334</FONT>                result = 193;<a name="line.334"></a>
<FONT color="green">335</FONT>                result = 37 * result + gp.getColor1().hashCode();<a name="line.335"></a>
<FONT color="green">336</FONT>                result = 37 * result + gp.getPoint1().hashCode();<a name="line.336"></a>
<FONT color="green">337</FONT>                result = 37 * result + gp.getColor2().hashCode();<a name="line.337"></a>
<FONT color="green">338</FONT>                result = 37 * result + gp.getPoint2().hashCode();<a name="line.338"></a>
<FONT color="green">339</FONT>            }<a name="line.339"></a>
<FONT color="green">340</FONT>            else {<a name="line.340"></a>
<FONT color="green">341</FONT>                // we assume that all other Paint instances implement equals() and<a name="line.341"></a>
<FONT color="green">342</FONT>                // hashCode()...of course that might not be true, but what can we<a name="line.342"></a>
<FONT color="green">343</FONT>                // do about it?<a name="line.343"></a>
<FONT color="green">344</FONT>                result = p.hashCode();<a name="line.344"></a>
<FONT color="green">345</FONT>            }<a name="line.345"></a>
<FONT color="green">346</FONT>            return result;<a name="line.346"></a>
<FONT color="green">347</FONT>        }<a name="line.347"></a>
<FONT color="green">348</FONT>        <a name="line.348"></a>
<FONT color="green">349</FONT>        /**<a name="line.349"></a>
<FONT color="green">350</FONT>         * Returns a hash code for a &lt;code&gt;double[]&lt;/code&gt; instance.<a name="line.350"></a>
<FONT color="green">351</FONT>         * <a name="line.351"></a>
<FONT color="green">352</FONT>         * @param a  the array (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.352"></a>
<FONT color="green">353</FONT>         * <a name="line.353"></a>
<FONT color="green">354</FONT>         * @return The hash code.<a name="line.354"></a>
<FONT color="green">355</FONT>         */<a name="line.355"></a>
<FONT color="green">356</FONT>        private static int hashCodeForDoubleArray(double[] a) {<a name="line.356"></a>
<FONT color="green">357</FONT>            if (a == null) { <a name="line.357"></a>
<FONT color="green">358</FONT>                return 0;<a name="line.358"></a>
<FONT color="green">359</FONT>            }<a name="line.359"></a>
<FONT color="green">360</FONT>            int result = 0;<a name="line.360"></a>
<FONT color="green">361</FONT>            long temp;<a name="line.361"></a>
<FONT color="green">362</FONT>            for (int i = 0; i &lt; a.length; i++) {<a name="line.362"></a>
<FONT color="green">363</FONT>                temp = Double.doubleToLongBits(a[i]);<a name="line.363"></a>
<FONT color="green">364</FONT>                result = (int) (temp ^ (temp &gt;&gt;&gt; 32));<a name="line.364"></a>
<FONT color="green">365</FONT>            }<a name="line.365"></a>
<FONT color="green">366</FONT>            return result;<a name="line.366"></a>
<FONT color="green">367</FONT>        }<a name="line.367"></a>
<FONT color="green">368</FONT>        <a name="line.368"></a>
<FONT color="green">369</FONT>        /**<a name="line.369"></a>
<FONT color="green">370</FONT>         * Returns a clone.<a name="line.370"></a>
<FONT color="green">371</FONT>         * <a name="line.371"></a>
<FONT color="green">372</FONT>         * @return A clone.<a name="line.372"></a>
<FONT color="green">373</FONT>         * <a name="line.373"></a>
<FONT color="green">374</FONT>         * @throws CloneNotSupportedException not thrown by this class, but may be<a name="line.374"></a>
<FONT color="green">375</FONT>         *                                    by subclasses.<a name="line.375"></a>
<FONT color="green">376</FONT>         */<a name="line.376"></a>
<FONT color="green">377</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.377"></a>
<FONT color="green">378</FONT>            return super.clone();<a name="line.378"></a>
<FONT color="green">379</FONT>        }<a name="line.379"></a>
<FONT color="green">380</FONT>        <a name="line.380"></a>
<FONT color="green">381</FONT>        /**<a name="line.381"></a>
<FONT color="green">382</FONT>         * Provides serialization support.<a name="line.382"></a>
<FONT color="green">383</FONT>         *<a name="line.383"></a>
<FONT color="green">384</FONT>         * @param stream  the output stream (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.384"></a>
<FONT color="green">385</FONT>         *<a name="line.385"></a>
<FONT color="green">386</FONT>         * @throws IOException if there is an I/O error.<a name="line.386"></a>
<FONT color="green">387</FONT>         */<a name="line.387"></a>
<FONT color="green">388</FONT>        private void writeObject(ObjectOutputStream stream) throws IOException {<a name="line.388"></a>
<FONT color="green">389</FONT>            stream.defaultWriteObject();<a name="line.389"></a>
<FONT color="green">390</FONT>            SerialUtilities.writeStroke(this.stroke, stream);<a name="line.390"></a>
<FONT color="green">391</FONT>            SerialUtilities.writePaint(this.outlinePaint, stream);<a name="line.391"></a>
<FONT color="green">392</FONT>            SerialUtilities.writePaint(this.fillPaint, stream);<a name="line.392"></a>
<FONT color="green">393</FONT>        }<a name="line.393"></a>
<FONT color="green">394</FONT>    <a name="line.394"></a>
<FONT color="green">395</FONT>        /**<a name="line.395"></a>
<FONT color="green">396</FONT>         * Provides serialization support.<a name="line.396"></a>
<FONT color="green">397</FONT>         *<a name="line.397"></a>
<FONT color="green">398</FONT>         * @param stream  the input stream (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.398"></a>
<FONT color="green">399</FONT>         *<a name="line.399"></a>
<FONT color="green">400</FONT>         * @throws IOException  if there is an I/O error.<a name="line.400"></a>
<FONT color="green">401</FONT>         * @throws ClassNotFoundException  if there is a classpath problem.<a name="line.401"></a>
<FONT color="green">402</FONT>         */<a name="line.402"></a>
<FONT color="green">403</FONT>        private void readObject(ObjectInputStream stream) <a name="line.403"></a>
<FONT color="green">404</FONT>                throws IOException, ClassNotFoundException {<a name="line.404"></a>
<FONT color="green">405</FONT>            stream.defaultReadObject();<a name="line.405"></a>
<FONT color="green">406</FONT>            this.stroke = SerialUtilities.readStroke(stream);<a name="line.406"></a>
<FONT color="green">407</FONT>            this.outlinePaint = SerialUtilities.readPaint(stream);<a name="line.407"></a>
<FONT color="green">408</FONT>            this.fillPaint = SerialUtilities.readPaint(stream);<a name="line.408"></a>
<FONT color="green">409</FONT>        }<a name="line.409"></a>
<FONT color="green">410</FONT>    <a name="line.410"></a>
<FONT color="green">411</FONT>    }<a name="line.411"></a>




























































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