added java support in the GIFPlot example

some minor changes where needed in the interface file


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@331 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/GIFPlot/Java/README

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+The gifplot example does not work straight out of the box, 
+I had to change ../Interface/gifplot.i slightly for java.
+
+a)
+The colors (e.g. BLACK) where defined as:
+
+	#define BLACK 0
+
+and the functions expect 'Pixel color' where Pixel is a unsigned char.
+#define constants contain no type information and are translated to integer
+constants. Because of that, you have to cast every Pixel to a byte in java.
+
+Changing the definition to:
+	const Pixel BLACK = 0;
+fixes this.
+
+b)
+The definitions:
+
+const PixMap *SQUARE = &PixMap_SQUARE;
+const PixMap *TRIANGLE = &PixMap_TRIANGLE;
+const PixMap *CROSS = &PixMap_CROSS;
+
+don't work.
+The wrapper code expects actual variables SQUARE, etc. and they are not
+defined in gifplot.h.
+
+c)
+In shadow mode the method ColorMap::default() clashes with the reserved name
+default.