[RQt-devel] a couple of minor things
Deepayan Sarkar
deepayan.sarkar at gmail.com
Fri Sep 17 13:39:26 CEST 2010
Hi,
A couple of low-priority things that might be nice to have:
(1) In dealing with images, Qt used unsigned int for colors.
> qimg <- Qt$QImage(100, 100, Qt$QImage$Format_ARGB32_Premultiplied)
> qimg$fill(0L)
> qimg$pixel(40, 50)
[1] 0
Is there an easy way to implement conversion to/from R colors? (Maybe
through R color <-> R integer <-> unsigned int.)
(2) QByteArrays are almost like strings, and used in various places. E.g.,
> Qt$QImageReader$supportedImageFormats()
Error in qinvokeStatic(cl, name, ...) :
Attempt to create SmokeObject with NULL class
> Qt$QByteArray()
NULL
Is there a risk in allowing the conversion?
-Deepayan
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