Apparently in the old days libcairo implemented text clipping in an inefficient way, but my tests of -dev pngcairo for a reasonably modern version (1.6.4) of libcairo indicate only a 10 per cent slowdown if using text_clipping=1.  Therefore, I have made text_clipping=1 the default so that text will always get clipped correctly by cairo unless the user specifically opts out with -drvopt text_clipping=0.
Apparently in the old days libcairo implemented text clipping in an
inefficient way, but my tests of -dev pngcairo for a reasonably modern
version (1.6.4) of libcairo indicate only a 10 per cent slowdown if using
text_clipping=1.  Therefore, I have made text_clipping=1 the default so that
text will always get clipped correctly by cairo unless the user specifically
opts out with -drvopt text_clipping=0.


svn path=/trunk/; revision=9774

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot