/* reset all gstate parameters except CTM
*/
void
pdf_reset_gstate(PDF *p)
{
pdf_gstate *gs = &p->curr_ppt->gstate[p->curr_ppt->sl];
pdf_set_default_color(p, pdc_true);
pdf__setlinewidth(p, 1);
pdf__setlinecap(p, 0);
pdf__setlinejoin(p, 0);
pdf__setmiterlimit(p, 10);
pdf__setdash(p, 0, 0);
if (gs->flatness != -1)
pdf__setflat(p, 1);
}
/* Start a new pattern definition. */
int
pdf__begin_pattern(
PDF *p,
pdc_scalar width,
pdc_scalar height,
pdc_scalar xstep,
pdc_scalar ystep,
int painttype)
{
int slot = -1;
pdc_check_number_limits(p->pdc, "width", width,
PDC_FLOAT_PREC, PDC_FLOAT_MAX);
pdc_check_number_limits(p->pdc, "height", height,
PDC_FLOAT_PREC, PDC_FLOAT_MAX);
pdc_check_number_zero(p->pdc, "xstep", xstep);
pdc_check_number_zero(p->pdc, "ystep", ystep);
if (painttype != 1 && painttype != 2)
pdc_error(p->pdc, PDC_E_ILLARG_INT,
"painttype", pdc_errprintf(p->pdc, "%d", painttype), 0, 0);
if (p->pattern_number == p->pattern_capacity)
pdf_grow_pattern(p);
pdf_pg_suspend(p);
PDF_SET_STATE(p, pdf_state_pattern);
p->pattern[p->pattern_number].obj_id = pdc_begin_obj(p->out, PDC_NEW_ID);
p->pattern[p->pattern_number].painttype = painttype;
pdc_begin_dict(p->out); /* pattern dict*/
p->res_id = pdc_alloc_id(p->out);
pdc_puts(p->out, "/PatternType 1\n"); /* tiling pattern */
/* colored or uncolored pattern */
pdc_printf(p->out, "/PaintType %d\n", painttype);
pdc_puts(p->out, "/TilingType 1\n"); /* constant spacing */
pdc_printf(p->out, "/BBox[0 0 %f %f]\n", width, height);
pdc_printf(p->out, "/XStep %f\n", xstep);
pdc_printf(p->out, "/YStep %f\n", ystep);
pdc_objref(p->out, "/Resources", p->res_id);
p->length_id = pdc_alloc_id(p->out);
pdc_objref(p->out, "/Length", p->length_id);
if (pdc_get_compresslevel(p->out))
pdc_puts(p->out, "/Filter/FlateDecode\n");
pdc_end_dict(p->out); /* pattern dict*/
pdc_begin_pdfstream(p->out);
slot = p->pattern_number;
p->pattern_number++;
/* top-down y-coordinates */
pdf_set_topdownsystem(p, height);
/* set color differing from PDF default */
pdf_set_default_color(p, pdc_false);
if (!p->pdc->smokerun)
pdc_logg_cond(p->pdc, 1, trc_api, "[Begin pattern %d]\n", slot);
return slot;
}
