[BATIK-787] [PATCH] PNG export: indexed option doesn't work

• Type: Bug
• Status: Resolved
• Resolution: Fixed
• Affects Version/s: 1.8
• Component/s: SVG Viewer
• Labels: NeedsReleaseNote PatchAvailable
• Environment: Operating System: All; Platform: All
• Assignee: Batik Developer's Mailing list
• Reporter: x00000000
• Created: 12/Nov/07 11:41
• Updated: 27/Mar/09 10:28
• Resolved: 17/Aug/10 09:39

Description

The indexed option of the PNG export in the SVG viewer has no effect.
This is because KEY_INDEXED is set to 256 while it seems to be expected
to be 8 if the number of palette entries should be 256 = 2^8.
A value of 256 will be ignored in
sources/org/apache/batik/ext/awt/image/codec/png/PNGTranscoderInternalCodecWriteAdapter.java

I'll post a simple patch, but the indexed option is still quite unusable
because it dithers a white background, even if only one other color is used.