extern "C" SEXP xaml_graphicsdevice_new(SEXP args) {
args = CDR(args);
SEXP file = CAR(args);
args = CDR(args);
SEXP width = CAR(args);
args = CDR(args);
SEXP height = CAR(args);
const char *f = R_CHAR(STRING_ELT(file, 0));
double *w = REAL(width);
double *h = REAL(height);
int ver = R_GE_getVersion();
if (ver < R_32_GE_version || ver > R_33_GE_version) {
Rf_error("Graphics API version %d is not supported.", ver);
}
R_CheckDeviceAvailable();
BEGIN_SUSPEND_INTERRUPTS{
auto dev = xaml_device::create(f, *w, *h);
pGEDevDesc gdd = GEcreateDevDesc(dev->device_desc);
GEaddDevice2f(gdd, "xaml", f);
// Owner is DevDesc::deviceSpecific, and is released in close()
dev.release();
} END_SUSPEND_INTERRUPTS;
return R_NilValue;
}
/*
cairo(filename, type, width, height, pointsize, bg, res, antialias,
quality, family)
*/
SEXP in_Cairo(SEXP args)
{
pGEDevDesc gdd;
SEXP sc;
const char *filename, *family;
int type, quality, width, height, pointsize, bgcolor, res, antialias;
const void *vmax = vmaxget();
args = CDR(args); /* skip entry point name */
if (!isString(CAR(args)) || LENGTH(CAR(args)) < 1)
error(_("invalid '%s' argument"), "filename");
filename = translateChar(STRING_ELT(CAR(args), 0));
args = CDR(args);
type = asInteger(CAR(args));
if(type == NA_INTEGER || type <= 0)
error(_("invalid '%s' argument"), "type");
args = CDR(args);
width = asInteger(CAR(args));
if(width == NA_INTEGER || width <= 0)
error(_("invalid '%s' argument"), "width");
args = CDR(args);
height = asInteger(CAR(args));
if(height == NA_INTEGER || height <= 0)
error(_("invalid '%s' argument"), "height");
args = CDR(args);
pointsize = asInteger(CAR(args));
if(pointsize == NA_INTEGER || pointsize <= 0)
error(_("invalid '%s' argument"), "pointsize");
args = CDR(args);
sc = CAR(args);
if (!isString(sc) && !isInteger(sc) && !isLogical(sc) && !isReal(sc))
error(_("invalid '%s' value"), "bg");
bgcolor = RGBpar(sc, 0);
args = CDR(args);
res = asInteger(CAR(args));
args = CDR(args);
antialias = asInteger(CAR(args));
if(antialias == NA_INTEGER)
error(_("invalid '%s' argument"), "antialias");
args = CDR(args);
quality = asInteger(CAR(args));
if(quality == NA_INTEGER || quality < 0 || quality > 100)
error(_("invalid '%s' argument"), "quality");
args = CDR(args);
if (!isString(CAR(args)) || LENGTH(CAR(args)) < 1)
error(_("invalid '%s' argument"), "family");
family = translateChar(STRING_ELT(CAR(args), 0));
R_GE_checkVersionOrDie(R_GE_version);
R_CheckDeviceAvailable();
BEGIN_SUSPEND_INTERRUPTS {
pDevDesc dev;
/* Allocate and initialize the device driver data */
if (!(dev = (pDevDesc) calloc(1, sizeof(DevDesc)))) return 0;
if (!BMDeviceDriver(dev, devtable[type].gtype, filename, quality,
width, height, pointsize,
bgcolor, res, antialias, family)) {
free(dev);
error(_("unable to start device '%s'"), devtable[type].name);
}
gdd = GEcreateDevDesc(dev);
GEaddDevice2f(gdd, devtable[type].name, filename);
} END_SUSPEND_INTERRUPTS;
vmaxset(vmax);
return R_NilValue;
}