/*
* Force the enumerator to be a gs_show_enum *, which the current
* implementation code requires.
*/
static int
show_n_begin(gs_show_enum *penum, gs_state *pgs, int code, gs_text_enum_t *pte)
{
if (code < 0)
return code;
if (gs_object_type(pgs->memory, pte) != &st_gs_show_enum) {
/* Use the default implementation. */
gx_device *dev = pgs->device;
gs_text_params_t text;
gs_memory_t *mem = pte->memory;
dev_proc_text_begin((*text_begin)) = dev_proc(dev, text_begin);
text = pte->text;
gs_text_release(pte, "show_n_begin");
/* Temporarily reset the text_begin procedure to the default. */
set_dev_proc(dev, text_begin, gx_default_text_begin);
code = gs_text_begin(pgs, &text, mem, &pte);
set_dev_proc(dev, text_begin, text_begin);
if (code < 0)
return code;
}
/* Now we know pte points to a gs_show_enum. */
*penum = *(gs_show_enum *)pte;
gs_free_object(pgs->memory, pte, "show_n_begin");
return code;
}
int
gx_forward_text_begin(gx_device * dev, gs_imager_state * pis,
const gs_text_params_t * text, gs_font * font,
gx_path * path, const gx_device_color * pdcolor,
const gx_clip_path * pcpath, gs_memory_t * memory,
gs_text_enum_t ** ppenum)
{
gx_device_forward * const fdev = (gx_device_forward *)dev;
gx_device *tdev = fdev->target;
dev_proc_text_begin((*proc)) =
(tdev == 0 ? (tdev = dev, gx_default_text_begin) :
dev_proc(tdev, text_begin));
return proc(tdev, pis, text, font, path, pdcolor, pcpath,
memory, ppenum);
}
