static int l_registerannot(lua_State * L)
{
int n, i;
n = lua_gettop(L);
switch (n) {
case 1:
if (global_shipping_mode == NOT_SHIPPING)
luaL_error(L, "pdf.registerannot() can only be used in late lua");
i = (int) luaL_checkinteger(L, 1);
if (i <= 0)
luaL_error(L, "pdf.registerannot() can only register positive object numbers");
addto_page_resources(static_pdf, obj_type_annot, i);
break;
default:
luaL_error(L, "pdf.registerannot() needs exactly 1 argument");
}
return 0;
}
void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform)
{
/*tex A transformation matrix: */
double a[6];
double xoff, yoff, tmp;
pdfstructure *p = pdf->pstruct;
scaledpos pos = pdf->posstruct->pos;
/*tex The number of digits after the decimal point: */
int r;
int k;
scaledpos tmppos;
pdffloat cm[6];
int groupref;
a[0] = a[3] = 1.0e6;
a[1] = a[2] = 0;
if (img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM
|| img_type(idict) == IMG_TYPE_PDFSTREAM) {
a[0] /= (double) img_xsize(idict);
a[3] /= (double) img_ysize(idict);
xoff = (double) img_xorig(idict) / (double) img_xsize(idict);
yoff = (double) img_yorig(idict) / (double) img_ysize(idict);
r = 6;
} else {
if (img_type(idict) == IMG_TYPE_PNG) {
groupref = img_group_ref(idict);
if ((groupref > 0) && (pdf->img_page_group_val == 0))
pdf->img_page_group_val = groupref;
}
a[0] /= (double) one_hundred_bp;
a[3] = a[0];
xoff = yoff = 0;
r = 4;
}
if ((transform & 7) > 3) {
/*tex Mirror cases: */
a[0] *= -1;
xoff *= -1;
}
switch ((transform + img_rotation(idict)) & 3) {
case 0:
/*tex No transform. */
break;
case 1:
/*tex rotation over 90 degrees (counterclockwise) */
a[1] = a[0];
a[2] = -a[3];
a[3] = a[0] = 0;
tmp = yoff;
yoff = xoff;
xoff = -tmp;
break;
case 2:
/*tex rotation over 180 degrees (counterclockwise) */
a[0] *= -1;
a[3] *= -1;
xoff *= -1;
yoff *= -1;
break;
case 3:
/*tex rotation over 270 degrees (counterclockwise) */
a[1] = -a[0];
a[2] = a[3];
a[3] = a[0] = 0;
tmp = yoff;
yoff = -xoff;
xoff = tmp;
break;
default:;
}
xoff *= (double) dim.wd;
yoff *= (double) (dim.ht + dim.dp);
a[0] *= (double) dim.wd;
a[1] *= (double) (dim.ht + dim.dp);
a[2] *= (double) dim.wd;
a[3] *= (double) (dim.ht + dim.dp);
a[4] = (double) pos.h - xoff;
a[5] = (double) pos.v - yoff;
k = transform + img_rotation(idict);
if ((transform & 7) > 3)
k++;
switch (k & 3) {
case 0:
/*tex No transform */
break;
case 1:
/*tex rotation over 90 degrees (counterclockwise) */
a[4] += (double) dim.wd;
break;
case 2:
/*tex rotation over 180 degrees (counterclockwise) */
a[4] += (double) dim.wd;
a[5] += (double) (dim.ht + dim.dp);
break;
case 3:
/*tex rotation over 270 degrees (counterclockwise) */
a[5] += (double) (dim.ht + dim.dp);
break;
default:;
}
setpdffloat(cm[0], i64round(a[0]), r);
setpdffloat(cm[1], i64round(a[1]), r);
setpdffloat(cm[2], i64round(a[2]), r);
setpdffloat(cm[3], i64round(a[3]), r);
tmppos.h = round(a[4]);
tmppos.v = round(a[5]);
pdf_goto_pagemode(pdf);
(void) calc_pdfpos(p, tmppos);
cm[4] = p->cm[4];
cm[5] = p->cm[5];
if (pdf->img_page_group_val == 0)
pdf->img_page_group_val = img_group_ref(idict);
pdf_puts(pdf, "q\n");
pdf_print_cm(pdf, cm);
pdf_puts(pdf, "/Im");
pdf_print_int(pdf, img_index(idict));
pdf_print_resname_prefix(pdf);
pdf_puts(pdf, " Do\nQ\n");
addto_page_resources(pdf, obj_type_ximage, img_objnum(idict));
if (img_state(idict) < DICT_OUTIMG)
img_state(idict) = DICT_OUTIMG;
}
