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/* Python.h should always be first */
#include <Python.h>
#include <string.h>
#include "grdel.h"
#include "cferbind.h"
#include "cairoCFerBind.h"
#include "FerMem.h"
/* Instantiate the global value */
const char *CCFBFontId = "CCFBFontId";
/*
* Create a font object for this "Window".
* The fontsize is in points (1/72")
*
* Returns a font object if successful. If an error occurs,
* grdelerrmsg is assigned an appropriate error message and NULL
* is returned.
*/
grdelType cairoCFerBind_createFont(CFerBind *self, const char *familyname, int namelen,
double fontsize, int italic, int bold, int underlined)
{
CairoCFerBindData *instdata;
double adjfontsize;
char *family;
CCFBFont *fontobj;
#ifndef USEPANGOCAIRO
cairo_font_slant_t slant;
cairo_font_weight_t weight;
#endif
/* Sanity check */
if ( (self->enginename != CairoCFerBindName) &&
(self->enginename != PyQtCairoCFerBindName) ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: unexpected error, "
"self is not a valid CFerBind struct");
return NULL;
}
if ( fontsize <= 0.0 ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: invalid font size given");
return NULL;
}
instdata = (CairoCFerBindData *) self->instancedata;
/* adjust the font size for Cairo text drawing */
if ( instdata->imageformat == CCFBIF_PNG ) {
adjfontsize = fontsize * 96.0 / 72.0;
}
else {
adjfontsize = fontsize * 96.0 / instdata->pixelsperinch;
}
if ( familyname == NULL ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: familyname is not given");
return NULL;
}
if ( namelen < 0 ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: invalid familyname length given");
return NULL;
}
fontobj = (CCFBFont *) FerMem_Malloc(sizeof(CCFBFont), __FILE__, __LINE__);
if ( fontobj == NULL ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: "
"out of memory for a CCFBFont structure");
return NULL;
}
family = (char *) FerMem_Malloc(namelen+1, __FILE__, __LINE__);
if ( family == NULL ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: "
"out of memory for a copy of the familyname string");
FerMem_Free(fontobj, __FILE__, __LINE__);
return NULL;
}
strncpy(family, familyname, namelen);
family[namelen] = '\0';
#ifdef USEPANGOCAIRO
fontobj->fontdesc = pango_font_description_new();
pango_font_description_set_family(fontobj->fontdesc, family);
if ( italic == 0 )
pango_font_description_set_style(fontobj->fontdesc, PANGO_STYLE_NORMAL);
else
pango_font_description_set_style(fontobj->fontdesc, PANGO_STYLE_ITALIC);
if ( bold == 0 )
pango_font_description_set_weight(fontobj->fontdesc, PANGO_WEIGHT_NORMAL);
else
pango_font_description_set_weight(fontobj->fontdesc, PANGO_WEIGHT_BOLD);
pango_font_description_set_variant(fontobj->fontdesc, PANGO_VARIANT_NORMAL);
pango_font_description_set_stretch(fontobj->fontdesc, PANGO_STRETCH_NORMAL);
pango_font_description_set_size(fontobj->fontdesc, (int) (adjfontsize * PANGO_SCALE + 0.5));
#else
if ( italic != 0 )
slant = CAIRO_FONT_SLANT_ITALIC;
else
slant = CAIRO_FONT_SLANT_NORMAL;
if ( bold != 0 )
weight = CAIRO_FONT_WEIGHT_BOLD;
else
weight = CAIRO_FONT_WEIGHT_NORMAL;
fontobj->fontface = cairo_toy_font_face_create(family, slant, weight);
if ( cairo_font_face_status(fontobj->fontface) != CAIRO_STATUS_SUCCESS ) {
strcpy(grdelerrmsg, "cairoCFerBind_createFont: "
"unable to find a font face for the given font");
cairo_font_face_destroy(fontobj->fontface);
FerMem_Free(family, __FILE__, __LINE__);
FerMem_Free(fontobj, __FILE__, __LINE__);
return NULL;
}
fontobj->fontsize = adjfontsize;
#endif
FerMem_Free(family, __FILE__, __LINE__);
fontobj->underline = underlined;
fontobj->id = CCFBFontId;
return fontobj;
}
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