void write_pdfstream(PDF pdf, image_dict * idict)
{
pdf_begin_obj(pdf, img_objnum(idict), OBJSTM_NEVER);
pdf_begin_dict(pdf);
if (!img_notype(idict)) {
pdf_dict_add_name(pdf, "Type", "XObject");
pdf_dict_add_name(pdf, "Subtype", "Form");
pdf_dict_add_int(pdf, "FormType", 1);
}
if (!img_nobbox(idict)) {
pdf_add_name(pdf, "BBox");
pdf_begin_array(pdf);
pdf_add_real(pdf, sp2bp(img_bbox(idict)[0]));
pdf_add_real(pdf, sp2bp(img_bbox(idict)[1]));
pdf_add_real(pdf, sp2bp(img_bbox(idict)[2]));
pdf_add_real(pdf, sp2bp(img_bbox(idict)[3]));
pdf_end_array(pdf);
}
if (img_attr(idict) != NULL && strlen(img_attr(idict)) > 0) {
pdf_printf(pdf, "\n%s\n", img_attr(idict));
}
if (!img_nolength(idict)) {
pdf_dict_add_streaminfo(pdf);
}
pdf_end_dict(pdf);
pdf_begin_stream(pdf);
if (img_pdfstream_stream(idict) != NULL) {
pdf_out_block(pdf, (const char *) img_pdfstream_stream(idict), img_pdfstream_size(idict));
}
pdf_end_stream(pdf);
pdf_end_obj(pdf);
}
static int luapdfprint(lua_State * L)
{
int n;
const_lstring st, modestr;
ctm_transform_modes literal_mode;
st.s = modestr.s = NULL;
n = lua_gettop(L);
if (!lua_isstring(L, -1)) {
luaL_error(L, "no string to print");
}
literal_mode = set_origin;
if (n == 2) {
if (!lua_isstring(L, -2)) {
luaL_error(L, "invalid argument for print literal mode");
} else {
modestr.s = lua_tolstring(L, -2, &modestr.l);
if (modestr.l == 6 && strncmp(modestr.s, "direct", 6) == 0)
literal_mode = direct_always;
else if (modestr.l == 4 && strncmp(modestr.s, "page", 4) == 0)
literal_mode = direct_page;
else {
luaL_error(L, "invalid argument for print literal mode");
}
}
} else {
if (n != 1) {
luaL_error(L, "invalid number of arguments");
}
}
check_o_mode(static_pdf, "pdf.print()", 1 << OMODE_PDF, true);
switch (literal_mode) {
case (set_origin):
pdf_goto_pagemode(static_pdf);
pdf_set_pos(static_pdf, static_pdf->posstruct->pos);
(void) calc_pdfpos(static_pdf->pstruct, static_pdf->posstruct->pos);
break;
case (direct_page):
pdf_goto_pagemode(static_pdf);
(void) calc_pdfpos(static_pdf->pstruct, static_pdf->posstruct->pos);
break;
case (direct_always):
pdf_end_string_nl(static_pdf);
break;
default:
assert(0);
}
st.s = lua_tolstring(L, n, &st.l);
pdf_out_block(static_pdf, st.s, st.l);
return 0;
}
static int luapdfprint(lua_State * L)
{
int n;
const_lstring st;
const char *modestr_s;
ctm_transform_modes literal_mode;
st.s = modestr_s = NULL;
n = lua_gettop(L);
if (!lua_isstring(L, -1)) { /* or number */
luaL_error(L, "no string to print");
}
literal_mode = set_origin;
if (n == 2) {
if (lua_type(L,-2) != LUA_TSTRING) {
luaL_error(L, "invalid first argument for print literal mode");
} else {
modestr_s = lua_tostring(L, -2);
if (lua_key_eq(modestr_s,direct))
literal_mode = direct_always;
else if (lua_key_eq(modestr_s,page))
literal_mode = direct_page;
else {
luaL_error(L, "invalid first argument for print literal mode");
}
}
} else if (n != 1) {
luaL_error(L, "invalid number of arguments");
}
check_o_mode(static_pdf, "pdf.print()", 1 << OMODE_PDF, true);
switch (literal_mode) {
case (set_origin):
pdf_goto_pagemode(static_pdf);
pdf_set_pos(static_pdf, static_pdf->posstruct->pos);
(void) calc_pdfpos(static_pdf->pstruct, static_pdf->posstruct->pos);
break;
case (direct_page):
pdf_goto_pagemode(static_pdf);
(void) calc_pdfpos(static_pdf->pstruct, static_pdf->posstruct->pos);
break;
case (direct_always):
pdf_end_string_nl(static_pdf);
break;
default:
assert(0);
}
st.s = lua_tolstring(L, n, &st.l);
pdf_out_block(static_pdf, st.s, st.l);
return 0;
}
static int l_immediateobj(lua_State * L)
{
int n, first_arg = 1;
int k;
lstring buf;
const_lstring st1,st2, st3;
const char *st1_s = NULL;
st1.s = st2.s = st3.s = NULL;
check_o_mode(static_pdf, "immediateobj()", 1 << OMODE_PDF, true);
if (global_shipping_mode != NOT_SHIPPING)
luaL_error(L, "pdf.immediateobj() can not be used with \\latelua");
n = lua_gettop(L);
if ((n > 0) && (lua_type(L, 1) == LUA_TNUMBER)) {
first_arg++;
k = (int) lua_tointeger(L, 1);
check_obj_type(static_pdf, obj_type_obj, k);
if (is_obj_scheduled(static_pdf, k) || obj_data_ptr(static_pdf, k) != 0)
luaL_error(L, "pdf.immediateobj() object in use");
} else {
static_pdf->obj_count++;
k = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
}
pdf_last_obj = k;
switch (n - first_arg + 1) {
case 0:
luaL_error(L, "pdf.immediateobj() needs at least one argument");
break;
case 1:
if (!lua_isstring(L, first_arg)) /* or number */
luaL_error(L, "pdf.immediateobj() 1st argument must be string");
pdf_begin_obj(static_pdf, k, OBJSTM_ALWAYS);
st1.s = lua_tolstring(L, first_arg, &st1.l);
pdf_out_block(static_pdf, st1.s, st1.l);
pdf_end_obj(static_pdf);
break;
case 2:
case 3:
if (lua_type(L,first_arg) != LUA_TSTRING)
luaL_error(L, "pdf.immediateobj() 1st argument must be string");
if (!lua_isstring(L, first_arg + 1)) /* or number */
luaL_error(L, "pdf.immediateobj() 2nd argument must be string");
st1_s = lua_tostring(L, first_arg);
st2.s = lua_tolstring(L, first_arg + 1, &st2.l);
if (lua_key_eq(st1_s, file)) {
if (n == first_arg + 2)
luaL_error(L, "pdf.immediateobj() 3rd argument forbidden in file mode");
pdf_begin_obj(static_pdf, k, OBJSTM_ALWAYS);
buf.s = fread_to_buf(L, st2.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
pdf_end_obj(static_pdf);
} else {
pdf_begin_obj(static_pdf, k, OBJSTM_NEVER); /* not an object stream candidate! */
pdf_begin_dict(static_pdf);
if (n == first_arg + 2) { /* write attr text */
if (!lua_isstring(L, first_arg + 2)) /* or number (maybe only string as it's an attr) */
luaL_error(L, "pdf.immediateobj() 3rd argument must be string");
st3.s = lua_tolstring(L, first_arg + 2, &st3.l);
pdf_out_block(static_pdf, st3.s, st3.l);
if (st3.s[st3.l - 1] != '\n')
pdf_out(static_pdf, '\n');
}
pdf_dict_add_streaminfo(static_pdf);
pdf_end_dict(static_pdf);
pdf_begin_stream(static_pdf);
if (lua_key_eq(st1_s, stream)) {
pdf_out_block(static_pdf, st2.s, st2.l);
} else if (lua_key_eq(st1_s, streamfile)) {
buf.s = fread_to_buf(L, st2.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
} else
luaL_error(L, "pdf.immediateobj() invalid argument");
pdf_end_stream(static_pdf);
pdf_end_obj(static_pdf);
}
break;
default:
luaL_error(L, "pdf.immediateobj() allows max. 3 arguments");
}
lua_pushinteger(L, k);
return 1;
}
static int table_obj(lua_State * L)
{
const char *type;
int k, obj_compression;
int compress_level = -1; /* unset */
int os_threshold = OBJSTM_ALWAYS; /* default: put non-stream objects into object streams */
int saved_compress_level = static_pdf->compress_level;
const_lstring attr, st;
lstring buf;
int immediate = 0; /* default: not immediate */
attr.s = st.s = NULL;
attr.l = 0;
assert(lua_istable(L, 1)); /* t */
lua_key_rawgeti(type);
if (lua_isnil(L, -1)) /* !vs t */
luaL_error(L, "pdf.obj(): object \"type\" missing");
if (lua_type(L,-1) != LUA_TSTRING) /* !vs t */
luaL_error(L, "pdf.obj(): object \"type\" must be string");
type = lua_tostring(L, -1);
if (! (lua_key_eq(type, raw) || lua_key_eq(type, stream))) {
luaL_error(L, "pdf.obj(): \"%s\" is not a valid object type", type); /* i vs t */
}
lua_pop(L, 1); /* t */
lua_key_rawgeti(immediate);
if (!lua_isnil(L, -1)) { /* b? t */
if (!lua_isboolean(L, -1)) /* !b t */
luaL_error(L, "pdf.obj(): \"immediate\" must be boolean");
immediate = lua_toboolean(L, -1); /* 0 or 1 */
}
lua_pop(L, 1); /* t */
/* is a reserved object referenced by "objnum"? */
lua_key_rawgeti(objnum);
if (!lua_isnil(L, -1)) { /* vi? t */
if (lua_type(L,-1) != LUA_TNUMBER) /* !vi t */
luaL_error(L, "pdf.obj(): \"objnum\" must be integer");
k = (int) lua_tointeger(L, -1); /* vi t */
check_obj_type(static_pdf, obj_type_obj, k);
if (is_obj_scheduled(static_pdf, k) || obj_data_ptr(static_pdf, k) != 0)
luaL_error(L, "pdf.obj() object in use");
} else {
static_pdf->obj_count++;
k = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
}
pdf_last_obj = k;
if (immediate == 0) {
obj_data_ptr(static_pdf, k) = pdf_get_mem(static_pdf, pdfmem_obj_size);
init_obj_obj(static_pdf, k);
}
lua_pop(L, 1); /* t */
/* get optional "attr" (allowed only for stream case) */
lua_key_rawgeti(attr);
if (!lua_isnil(L, -1)) { /* attr-s? t */
if (! lua_key_eq(type, stream))
luaL_error(L, "pdf.obj(): \"attr\" key not allowed for non-stream object");
if (!lua_isstring(L, -1)) /* or number */ /* !attr-s t */
luaL_error(L, "pdf.obj(): object \"attr\" must be string");
if (immediate == 1) {
attr.s = lua_tolstring(L, -1, &attr.l); /* attr-s t */
lua_pop(L, 1); /* t */
} else
obj_obj_stream_attr(static_pdf, k) = luaL_ref(Luas, LUA_REGISTRYINDEX); /* t */
} else {
lua_pop(L, 1); /* t */
}
/* get optional "compresslevel" (allowed only for stream case) */
lua_key_rawgeti(compresslevel);
if (!lua_isnil(L, -1)) { /* vi? t */
if (lua_key_eq(type, raw))
luaL_error(L, "pdf.obj(): \"compresslevel\" key not allowed for raw object");
if (lua_type(L, -1) != LUA_TNUMBER) /* !vi t */
luaL_error(L, "pdf.obj(): \"compresslevel\" must be integer");
compress_level = (int) lua_tointeger(L, -1); /* vi t */
if (compress_level > 9)
luaL_error(L, "pdf.obj(): \"compresslevel\" must be <= 9");
else if (compress_level < 0)
luaL_error(L, "pdf.obj(): \"compresslevel\" must be >= 0");
if (immediate == 0)
obj_obj_pdfcompresslevel(static_pdf, k) = compress_level;
}
lua_pop(L, 1); /* t */
/* get optional "objcompression" (allowed only for non-stream case) */
lua_key_rawgeti(objcompression);
if (!lua_isnil(L, -1)) { /* b? t */
if (lua_key_eq(type, stream))
luaL_error(L, "pdf.obj(): \"objcompression\" key not allowed for stream object");
if (!lua_isboolean(L, -1)) /* !b t */
luaL_error(L, "pdf.obj(): \"objcompression\" must be boolean");
obj_compression = lua_toboolean(L, -1); /* 0 or 1 */
/* OBJSTM_NEVER: never into object stream; OBJSTM_ALWAYS: depends then on \pdfobjcompresslevel */
if (obj_compression > 0)
os_threshold = OBJSTM_ALWAYS;
else
os_threshold = OBJSTM_NEVER;
if (immediate == 0)
obj_obj_objstm_threshold(static_pdf, k) = os_threshold;
}
lua_pop(L, 1); /* t */
/* now the object contents for all cases are handled */
lua_key_rawgeti(string);
lua_key_rawgeti_n(file,-2);
if (!lua_isnil(L, -1) && !lua_isnil(L, -2)) /* file-s? string-s? t */
luaL_error(L, "pdf.obj(): \"string\" and \"file\" must not be given together");
if (lua_isnil(L, -1) && lua_isnil(L, -2)) /* nil nil t */
luaL_error(L, "pdf.obj(): no \"string\" or \"file\" given");
if (lua_key_eq(type, raw)) {
if (immediate == 1)
pdf_begin_obj(static_pdf, k, os_threshold);
if (!lua_isnil(L, -2)) { /* file-s? string-s? t */
/* from string */
lua_pop(L, 1); /* string-s? t */
if (!lua_isstring(L, -1)) /* or number */ /* !string-s t */
luaL_error(L, "pdf.obj(): \"string\" must be string for raw object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l);
pdf_out_block(static_pdf, st.s, st.l);
} else
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* t */
} else {
/* from file */
if (lua_type(L, -1) != LUA_TSTRING) /* !file-s nil t */
luaL_error(L, "pdf.obj(): \"file\" name must be string for raw object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* file-s nil t */
buf.s = fread_to_buf(L, st.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
/* already in pdf_end_obj:
if (buf.s[buf.l - 1] != '\n')
pdf_out(static_pdf, '\n');
*/
xfree(buf.s);
} else {
set_obj_obj_is_file(static_pdf, k);
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* nil t */
}
}
if (immediate == 1)
pdf_end_obj(static_pdf);
} else {
if (immediate == 1) {
pdf_begin_obj(static_pdf, k, OBJSTM_NEVER); /* 0 = not an object stream candidate! */
pdf_begin_dict(static_pdf);
if (attr.s != NULL) {
pdf_out_block(static_pdf, attr.s, attr.l);
if (attr.s[attr.l - 1] != '\n')
pdf_out(static_pdf, '\n');
}
if (compress_level > -1)
static_pdf->compress_level = compress_level;
pdf_dict_add_streaminfo(static_pdf);
pdf_end_dict(static_pdf);
pdf_begin_stream(static_pdf);
} else {
set_obj_obj_is_stream(static_pdf, k);
if (compress_level > -1)
obj_obj_pdfcompresslevel(static_pdf, k) = compress_level;
}
if (!lua_isnil(L, -2)) { /* file-s? string-s? t */
/* from string */
lua_pop(L, 1); /* string-s? t */
if (!lua_isstring(L, -1)) /* or number */ /* !string-s t */
luaL_error(L, "pdf.obj(): \"string\" must be string for stream object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* string-s t */
pdf_out_block(static_pdf, st.s, st.l);
} else
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* t */
} else {
/* from file */
if (lua_type(L, -1) != LUA_TSTRING) /* !file-s nil t */
luaL_error(L, "pdf.obj(): \"file\" name must be string for stream object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* file-s nil t */
buf.s = fread_to_buf(L, st.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
} else {
set_obj_obj_is_file(static_pdf, k);
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* nil t */
}
}
if (immediate == 1) {
pdf_end_stream(static_pdf);
pdf_end_obj(static_pdf);
}
}
static_pdf->compress_level = saved_compress_level;
return k;
}
