On 2012-01-20 03:32-0800 phil rosenberg wrote:
> Sorry for the multiple emails today.
>
> I have been looking at removing references to cmap0 and cmap1 in wxwidgets. I
> noticed that in plplotP.h the switches for state function
> calls include PLSTATE_COLOR1 and PLSTATE_COLOR2 and there are apropriate
> functions in the wxWidgets drivers to deal with these. I'm not
> sure what the appropriate driver response should be to these calls. Should it
> be to set the driver's internal colour from cmap0/cmap1
> or set it from curcolor?
curcolor.
To explain that further, qt.cpp is one of our most well-maintained
device drivers. If you look at the various plD_state_* functions in
qt.cpp, you will see code like this:
case PLSTATE_COLOR0:
( (QtPLDriver *) widget )->QtPLDriver::setColor( pls->curcolor.r,
pls->curcolor.g, pls->curcolor.b, pls->curcolor.a );
break;
case PLSTATE_COLOR1:
( (QtPLDriver *) widget )->QtPLDriver::setColor( pls->curcolor.r,
pls->curcolor.g, pls->curcolor.b, pls->curcolor.a );
break;
i.e., curcolor is used for both. I have also reviewed some of our
other drivers and the large majority of them use curcolor. Some use
the above PLSTATE_COLOR0 and PLSTATE_COLOR1 method while others (e.g.
svg.c and cairo.c) ignore that and simply use curcol from the PLStream
state.
So I suggest you use curcolor with wxwidgets as well.
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
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