static void copy_image(lua_State * L, lua_Number scale)
{
image *a, **aa, *b, **bb;
image_dict *d;
if (lua_gettop(L) == 0)
luaL_error(L, "img.copy needs an image as argument");
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG); /* a */
lua_pop(L, 1); /* - */
a = *aa;
bb = (image **) lua_newuserdata(L, sizeof(image *)); /* b */
luaL_getmetatable(L, TYPE_IMG); /* m b */
lua_setmetatable(L, -2); /* b */
b = *bb = new_image();
if (!is_wd_running(a))
img_width(b) = do_zround(img_width(a) * scale);
if (!is_ht_running(a))
img_height(b) = do_zround(img_height(a) * scale);
if (!is_dp_running(a))
img_depth(b) = do_zround(img_depth(a) * scale);
img_transform(b) = img_transform(a);
img_dict(b) = img_dict(a);
if (img_dictref(a) != LUA_NOREF) {
lua_rawgeti(L, LUA_REGISTRYINDEX, img_dictref(a)); /* ad b */
img_dictref(b) = luaL_ref(L, LUA_REGISTRYINDEX); /* b */
d = img_dict(*aa);
img_luaref(d) += 1;
} else if (img_state(img_dict(a)) < DICT_REFERED) {
luaL_error(L, "img.copy needs an proper image as argument");
}
}
static void copy_image(lua_State * L, lua_Number scale)
{
image *a, **aa, *b, **bb;
if (lua_gettop(L) != 1)
luaL_error(L, "img.copy() needs exactly 1 argument");
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG); /* a */
lua_pop(L, 1); /* - */
a = *aa;
bb = (image **) lua_newuserdata(L, sizeof(image *)); /* b */
luaL_getmetatable(L, TYPE_IMG); /* m b */
lua_setmetatable(L, -2); /* b */
b = *bb = new_image();
if (!is_wd_running(a))
img_width(b) = do_zround(img_width(a) * scale);
if (!is_ht_running(a))
img_height(b) = do_zround(img_height(a) * scale);
if (!is_dp_running(a))
img_depth(b) = do_zround(img_depth(a) * scale);
img_transform(b) = img_transform(a);
img_dict(b) = img_dict(a);
if (img_dictref(a) != LUA_NOREF) {
lua_rawgeti(L, LUA_GLOBALSINDEX, img_dictref(a)); /* ad b */
img_dictref(b) = luaL_ref(L, LUA_GLOBALSINDEX); /* b */
} else
assert(img_state(img_dict(a)) >= DICT_REFERED);
}
static int m_img_gc(lua_State * L)
{
image *a, **aa;
image_dict *d;
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG);
a = *aa;
d = img_dict(*aa);
#ifdef DEBUG
printf("\n===== IMG GC ===== a=%d ad=%d\n", a, img_dict(a));
#endif
luaL_unref(L, LUA_GLOBALSINDEX, img_dictref(a));
if (!img_is_refered(d))
xfree(a);
return 0;
}
static void write_image_or_node(lua_State * L, wrtype_e writetype)
{
image *a, **aa;
image_dict *ad;
halfword n;
if (lua_gettop(L) != 1)
luaL_error(L, "%s expects an argument", wrtype_s[writetype]);
if (lua_istable(L, 1))
(void) l_new_image(L);
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG);
a = *aa;
ad = img_dict(a);
setup_image(static_pdf, a, writetype);
switch (writetype) {
case WR_WRITE:
n = img_to_node(L, a);
tail_append(n);
break;
case WR_IMMEDIATEWRITE:
write_img(static_pdf, ad);
break;
case WR_NODE:
lua_pop(L, 1); /* - */
n = img_to_node(L, a);
lua_nodelib_push_fast(L, n);
break;
default:
luaL_error(L, "%s expects an valid image", wrtype_s[writetype]);
}
if (img_state(ad) < DICT_REFERED)
img_state(ad) = DICT_REFERED;
}
int l_new_image(lua_State * L)
{
image *a, **aa;
image_dict **add;
if (lua_gettop(L) > 1)
luaL_error(L, "img.new() needs maximum 1 argument");
if (lua_gettop(L) == 1 && !lua_istable(L, -1))
luaL_error(L, "img.new() needs table as optional argument"); /* (t) */
aa = (image **) lua_newuserdata(L, sizeof(image *)); /* i (t) */
luaL_getmetatable(L, TYPE_IMG); /* m i (t) */
lua_setmetatable(L, -2); /* i (t) */
a = *aa = new_image();
add = (image_dict **) lua_newuserdata(L, sizeof(image_dict *)); /* ad i (t) */
luaL_getmetatable(L, TYPE_IMG_DICT); /* m ad i (t) */
lua_setmetatable(L, -2); /* ad i (t) */
img_dict(a) = *add = new_image_dict();
img_dictref(a) = luaL_ref(L, LUA_GLOBALSINDEX); /* i (t) */
if (lua_gettop(L) == 2) { /* i t, else just i */
lua_insert(L, -2); /* t i */
lua_pushnil(L); /* n t i (1st key for iterator) */
while (lua_next(L, -2) != 0) { /* v k t i */
lua_to_image(L, a); /* v k t i */
lua_pop(L, 1); /* k t i */
} /* t i */
lua_pop(L, 1); /* i */
} /* i */
return 1; /* i */
}
static void write_image_or_node(lua_State * L, wrtype_e writetype)
{
image *a, **aa;
image_dict *ad;
halfword n;
if (lua_gettop(L) != 1)
luaL_error(L, "%s needs exactly 1 argument", wrtype_s[writetype]);
if (lua_istable(L, 1))
(void) l_new_image(L); /* image --- if everything worked well */
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG); /* image */
a = *aa;
ad = img_dict(a);
setup_image(static_pdf, a, writetype);
switch (writetype) {
case WR_WRITE:
n = img_to_node(a);
tail_append(n);
break; /* image */
case WR_IMMEDIATEWRITE:
write_img(static_pdf, ad);
break; /* image */
case WR_NODE: /* image */
lua_pop(L, 1); /* - */
n = img_to_node(a);
lua_nodelib_push_fast(L, n);
break; /* node */
default:
assert(0);
}
if (img_state(ad) < DICT_REFERED)
img_state(ad) = DICT_REFERED;
}
static void read_scale_img(image * a)
{
image_dict *ad;
if (a == NULL) {
luaL_error(Luas, "the image scaler needs a valid image");
} else {
ad = img_dict(a);
if (a == NULL) {
luaL_error(Luas, "the image scaler needs a valid dictionary");
} else {
if (img_state(ad) == DICT_NEW) {
if (img_type(ad) == IMG_TYPE_PDFSTREAM)
check_pdfstream_dict(ad);
else {
read_img(ad);
}
}
if ((img_type(ad) == IMG_TYPE_NONE) || (img_state(ad) == DICT_NEW)) {
normal_warning("image","don't rely on the image data to be okay");
img_width(a) = 0;
img_height(a) = 0;
img_depth(a) = 0;
} else if (is_wd_running(a) || is_ht_running(a) || is_dp_running(a)) {
img_dimen(a) = scale_img(ad, img_dimen(a), img_transform(a));
}
}
}
}
image *new_image(void)
{
image *p = xtalloc(1, image);
set_wd_running(p);
set_ht_running(p);
set_dp_running(p);
img_transform(p) = 0;
img_dict(p) = NULL;
img_dictref(p) = LUA_NOREF;
return p;
}
static int m_img_set(lua_State * L)
{
image **a = (image **) luaL_checkudata(L, 1, TYPE_IMG); /* v k u */
image_dict *d = img_dict(*a);
if (d == NULL) {
luaL_error(L, "invalid image dictionary");
} else {
lua_to_image(L, *a, d);
}
return 0;
}
static int m_img_print(lua_State * L)
{
image **aa;
image_dict *d;
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG);
d = img_dict(*aa);
if (img_pagename(d) != NULL && strlen(img_pagename(d)) != 0)
lua_pushfstring(L, "<img{filename=\"%s\", page=\"%s\"}>",
img_filename(d), img_pagename(d));
else
lua_pushfstring(L, "<img{filename=\"%s\", page=%d}>", img_filename(d),
img_pagenum(d));
return 1;
}
void vf_out_image(PDF pdf, unsigned i)
{
image *a, **aa;
image_dict *ad;
lua_State *L = Luas; /* ... */
lua_rawgeti(L, LUA_GLOBALSINDEX, (int) i); /* image ... */
aa = (image **) luaL_checkudata(L, -1, TYPE_IMG);
a = *aa;
ad = img_dict(a);
assert(ad != NULL);
setup_image(pdf, a, WR_VF_IMG); /* image ... */
place_img(pdf, ad, img_dimen(a), img_transform(a));
lua_pop(L, 1); /* ... */
}
void vf_out_image(PDF pdf, unsigned i)
{
image *a, **aa;
image_dict *ad;
lua_rawgeti(Luas, LUA_REGISTRYINDEX, (int) i);
aa = (image **) luaL_checkudata(Luas, -1, TYPE_IMG);
a = *aa;
ad = img_dict(a);
if (ad == NULL) {
luaL_error(Luas, "invalid image dictionary");
}
setup_image(pdf, a, WR_VF_IMG);
place_img(pdf, ad, img_dimen(a), img_transform(a));
lua_pop(Luas, 1);
}
static int m_img_gc(lua_State * L)
{
image *a, **aa;
image_dict *d;
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG);
a = *aa;
d = img_dict(*aa);
luaL_unref(L, LUA_REGISTRYINDEX, img_dictref(a));
img_luaref(d) -= 1;
/* we need to check this */
if (!img_is_refered(d)) {
xfree(a);
}
/* till here */
return 0;
}
static halfword img_to_node(image * a)
{
image_dict *ad;
halfword n;
assert(a != NULL);
ad = img_dict(a);
assert(ad != NULL);
assert(img_objnum(ad) != 0);
n = new_node(whatsit_node, pdf_refximage_node);
pdf_ximage_index(n) = img_index(ad);
width(n) = img_width(a);
height(n) = img_height(a);
depth(n) = img_depth(a);
pdf_ximage_transform(n) = img_transform(a);
return n;
}
static void setup_image(PDF pdf, image * a, wrtype_e writetype)
{
image_dict *ad;
if (a == NULL)
luaL_error(Luas, "no valid image passed"); /* todo, also check in caller */
ad = img_dict(a);
check_o_mode(pdf, wrtype_s[writetype], 1 << OMODE_PDF, false);
read_scale_img(a);
if (img_objnum(ad) == 0) { /* latest needed just before out_img() */
pdf->ximage_count++;
img_objnum(ad) = pdf_create_obj(pdf, obj_type_ximage, pdf->ximage_count);
img_index(ad) = pdf->ximage_count;
idict_to_array(ad); /* from now on ad is read-only */
obj_data_ptr(pdf, pdf->obj_ptr) = img_index(ad);
}
}
static void setup_image(PDF pdf, image * a, wrtype_e writetype)
{
image_dict *ad;
assert(a != NULL);
ad = img_dict(a);
check_o_mode(pdf, wrtype_s[writetype], 1 << OMODE_PDF, false);
/* flush_str(last_tex_string); *//* ?? */
read_scale_img(a);
if (img_objnum(ad) == 0) { /* latest needed just before out_img() */
pdf->ximage_count++;
img_objnum(ad) =
pdf_create_obj(pdf, obj_type_ximage, pdf->ximage_count);
img_index(ad) = pdf->ximage_count;
idict_to_array(ad); /* now ad is read-only */
obj_data_ptr(pdf, pdf->obj_ptr) = img_index(ad);
}
}
static void read_scale_img(image * a)
{
image_dict *ad;
assert(a != NULL);
ad = img_dict(a);
assert(ad != NULL);
if (img_state(ad) == DICT_NEW) {
if (img_type(ad) == IMG_TYPE_PDFSTREAM)
check_pdfstream_dict(ad);
else {
fix_pdf_minorversion(static_pdf);
read_img(static_pdf,
ad, pdf_minor_version, pdf_inclusion_errorlevel);
}
}
if (is_wd_running(a) || is_ht_running(a) || is_dp_running(a))
img_dimen(a) = scale_img(ad, img_dimen(a), img_transform(a));
}
static int m_img_print(lua_State * L)
{
image **aa;
image_dict *d;
aa = (image **) luaL_checkudata(L, 1, TYPE_IMG);
d = img_dict(*aa);
/* formatted a bit like a node */
if (img_filename(d) == NULL) {
if (img_pagename(d) != NULL && strlen(img_pagename(d)) != 0) {
lua_pushfstring(L, "<img unset : %d >", img_dictref(*aa));
} else {
lua_pushfstring(L, "<img unset : %d >", img_dictref(*aa));
}
} else {
if (img_pagename(d) != NULL && strlen(img_pagename(d)) != 0) {
lua_pushfstring(L, "<img %s : %s : %d >", img_filename(d), img_pagename(d), img_dictref(*aa));
} else {
lua_pushfstring(L, "<img %s : %d : %d >", img_filename(d), img_pagenum(d), img_dictref(*aa));
}
}
return 1;
}
static halfword img_to_node(lua_State * L, image * a)
{
image_dict *ad;
halfword n = null;
if (a == NULL) {
luaL_error(L, "img.tonode needs a valid image");
} else {
ad = img_dict(a);
if (a == NULL) {
luaL_error(L, "img.tonode image has no dictionary");
} else if (img_objnum(ad) == 0) {
luaL_error(L, "img.tonode got image without object number");
} else {
n = new_rule(image_rule);
rule_index(n) = img_index(ad);
width(n) = img_width(a);
height(n) = img_height(a);
depth(n) = img_depth(a);
rule_transform(n) = img_transform(a);
}
}
return n;
}
static image_dict *read_image(char *file_name, int page_num, char *page_name, int colorspace, int page_box, char *user_password, char *owner_password, char *visible_filename)
{
image *a = new_image();
image_dict *idict = img_dict(a) = new_image_dict();
static_pdf->ximage_count++;
img_objnum(idict) = pdf_create_obj(static_pdf, obj_type_ximage, static_pdf->ximage_count);
img_index(idict) = static_pdf->ximage_count;
set_obj_data_ptr(static_pdf, img_objnum(idict), img_index(idict));
idict_to_array(idict);
img_colorspace(idict) = colorspace;
img_pagenum(idict) = page_num;
img_pagename(idict) = page_name;
img_userpassword(idict) = user_password;
img_ownerpassword(idict) = owner_password;
img_visiblefilename(idict) = visible_filename;
if (file_name == NULL) {
normal_error("pdf backend","no image filename given");
}
cur_file_name = file_name;
img_filename(idict) = file_name;
img_pagebox(idict) = page_box;
read_img(idict);
return idict;
}
static void lua_to_image(lua_State * L, image * a)
{ /* value key table ... */
int i;
image_dict *d = img_dict(a);
assert(d != NULL);
lua_pushstring(L, IMG_ENV); /* s v k t ... */
lua_gettable(L, LUA_REGISTRYINDEX); /* t v k t ... */
lua_pushvalue(L, -3); /* k t v k t ... */
lua_gettable(L, -2); /* i? t v k t ... */
if (!lua_isnumber(L, -1)) /* !i t v k t ... */
luaL_error(L, "lua_to_image(): %s is not a valid image key",
lua_tostring(L, -4));
i = (int) lua_tointeger(L, -1); /* i t v k t ... */
lua_pop(L, 2); /* v k t ... */
switch (i) {
case P_WIDTH:
if (lua_isnil(L, -1))
set_wd_running(a);
else if (lua_type(L, -1) == LUA_TNUMBER)
img_width(a) = (int) lua_tointeger(L, -1);
else if (lua_type(L, -1) == LUA_TSTRING)
img_width(a) = dimen_to_number(L, lua_tostring(L, -1));
else
luaL_error(L,
"image.width needs integer or nil value or dimension string");
break;
case P_HEIGHT:
if (lua_isnil(L, -1))
set_ht_running(a);
else if (lua_type(L, -1) == LUA_TNUMBER)
img_height(a) = (int) lua_tointeger(L, -1);
else if (lua_type(L, -1) == LUA_TSTRING)
img_height(a) = dimen_to_number(L, lua_tostring(L, -1));
else
luaL_error(L,
"image.height needs integer or nil value or dimension string");
break;
case P_DEPTH:
if (lua_isnil(L, -1))
set_dp_running(a);
else if (lua_type(L, -1) == LUA_TNUMBER)
img_depth(a) = (int) lua_tointeger(L, -1);
else if (lua_type(L, -1) == LUA_TSTRING)
img_depth(a) = dimen_to_number(L, lua_tostring(L, -1));
else
luaL_error(L,
"image.depth needs integer or nil value or dimension string");
break;
case P_TRANSFORM:
if (lua_isnumber(L, -1))
img_transform(a) = (int) lua_tointeger(L, -1);
else
luaL_error(L, "image.transform needs integer value");
break;
/* now follow all image_dict entries */
case P_FILENAME:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.filename is now read-only");
if (img_type(d) == IMG_TYPE_PDFSTREAM)
luaL_error(L, "image.filename can't be used with image.stream");
if (lua_isstring(L, -1)) {
xfree(img_filename(d));
img_filename(d) = xstrdup(lua_tostring(L, -1));
} else
luaL_error(L, "image.filename needs string value");
break;
case P_VISIBLEFILENAME:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.visiblefilename is now read-only");
if (img_type(d) == IMG_TYPE_PDFSTREAM)
luaL_error(L,
"image.visiblefilename can't be used with image.stream");
if (lua_isstring(L, -1)) {
xfree(img_visiblefilename(d));
img_visiblefilename(d) = xstrdup(lua_tostring(L, -1));
} else
luaL_error(L, "image.visiblefilename needs string value");
break;
case P_ATTR:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.attr is now read-only");
if (lua_isstring(L, -1) || lua_isnil(L, -1)) {
xfree(img_attr(d));
if (lua_isstring(L, -1))
img_attr(d) = xstrdup(lua_tostring(L, -1));
} else
luaL_error(L, "image.attr needs string or nil value");
break;
case P_PAGE:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.page is now read-only");
if (lua_type(L, -1) == LUA_TSTRING) {
xfree(img_pagename(d));
img_pagename(d) = xstrdup(lua_tostring(L, -1));
img_pagenum(d) = 0;
} else if (lua_type(L, -1) == LUA_TNUMBER) {
img_pagenum(d) = (int) lua_tointeger(L, -1);
xfree(img_pagename(d));
} else
luaL_error(L, "image.page needs integer or string value");
break;
case P_COLORSPACE:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.colorspace is now read-only");
if (lua_isnil(L, -1))
img_colorspace(d) = 0;
else if (lua_isnumber(L, -1))
img_colorspace(d) = (int) lua_tointeger(L, -1);
else
luaL_error(L, "image.colorspace needs integer or nil value");
break;
case P_PAGEBOX:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.pagebox is now read-only");
if (lua_isnil(L, -1))
img_pagebox(d) = PDF_BOX_SPEC_NONE;
else if (lua_isstring(L, -1))
img_pagebox(d) = luaL_checkoption(L, -1, "none", pdfboxspec_s);
else
luaL_error(L, "image.pagebox needs string or nil value");
break;
case P_BBOX:
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.bbox is now read-only");
if (!lua_istable(L, -1))
luaL_error(L, "image.bbox needs table value");
if (lua_objlen(L, -1) != 4)
luaL_error(L, "image.bbox table must have exactly 4 elements");
for (i = 1; i <= 4; i++) { /* v k t ... */
lua_pushinteger(L, i); /* idx v k t ... */
lua_gettable(L, -2); /* int v k t ... */
if (lua_type(L, -1) == LUA_TNUMBER)
img_bbox(d)[i - 1] = (int) lua_tointeger(L, -1);
else if (lua_type(L, -1) == LUA_TSTRING)
img_bbox(d)[i - 1] = dimen_to_number(L, lua_tostring(L, -1));
else
luaL_error(L,
"image.bbox table needs integer value or dimension string elements");
lua_pop(L, 1); /* v k t ... */
}
img_set_bbox(d);
break;
case P_STREAM:
if (img_filename(d) != NULL)
luaL_error(L, "image.stream can't be used with image.filename");
if (img_state(d) >= DICT_FILESCANNED)
luaL_error(L, "image.stream is now read-only");
if (img_pdfstream_ptr(d) == NULL)
new_img_pdfstream_struct(d);
xfree(img_pdfstream_stream(d));
img_pdfstream_stream(d) = xstrdup(lua_tostring(L, -1));
img_type(d) = IMG_TYPE_PDFSTREAM;
break;
case P_FILEPATH:
case P_TOTALPAGES:
case P_XSIZE:
case P_YSIZE:
case P_XRES:
case P_YRES:
case P_ROTATION:
case P_IMAGETYPE:
case P_OBJNUM:
case P_INDEX:
case P_COLORDEPTH:
luaL_error(L, "image.%s is a read-only variable", img_parms[i].name);
break;
default:
assert(0);
} /* v k t ... */
}
static void image_to_lua(lua_State * L, image * a)
{ /* key user ... */
int i, j;
image_dict *d = img_dict(a);
assert(d != NULL);
lua_pushstring(L, IMG_ENV); /* s k u ... */
lua_gettable(L, LUA_REGISTRYINDEX); /* t k u ... */
lua_pushvalue(L, -2); /* k t k u ... */
lua_gettable(L, -2); /* i? t k u ... */
if (!lua_isnumber(L, -1)) /* !i t k u ... */
luaL_error(L, "image_to_lua(): %s is not a valid image key",
lua_tostring(L, -3));
i = (int) lua_tointeger(L, -1); /* i t k u ... */
lua_pop(L, 3); /* u ... */
switch (i) {
case P_WIDTH:
if (is_wd_running(a))
lua_pushnil(L);
else
lua_pushinteger(L, img_width(a));
break;
case P_HEIGHT:
if (is_ht_running(a))
lua_pushnil(L);
else
lua_pushinteger(L, img_height(a));
break;
case P_DEPTH:
if (is_dp_running(a))
lua_pushnil(L);
else
lua_pushinteger(L, img_depth(a));
break;
case P_TRANSFORM:
lua_pushinteger(L, img_transform(a));
break;
/* now follow all image_dict entries */
case P_FILENAME:
if (img_filename(d) == NULL || strlen(img_filename(d)) == 0)
lua_pushnil(L);
else
lua_pushstring(L, img_filename(d));
break;
case P_VISIBLEFILENAME:
if (img_visiblefilename(d) == NULL
|| strlen(img_visiblefilename(d)) == 0)
lua_pushnil(L);
else
lua_pushstring(L, img_visiblefilename(d));
break;
case P_FILEPATH:
if (img_filepath(d) == NULL || strlen(img_filepath(d)) == 0)
lua_pushnil(L);
else
lua_pushstring(L, img_filepath(d));
break;
case P_ATTR:
if (img_attr(d) == NULL || strlen(img_attr(d)) == 0)
lua_pushnil(L);
else
lua_pushstring(L, img_attr(d));
break;
case P_PAGE:
if (img_pagename(d) != NULL && strlen(img_pagename(d)) != 0)
lua_pushstring(L, img_pagename(d));
else
lua_pushinteger(L, img_pagenum(d));
break;
case P_TOTALPAGES:
lua_pushinteger(L, img_totalpages(d));
break;
case P_XSIZE: /* Modify by /Rotate only for output */
if ((img_rotation(d) & 1) == 0)
lua_pushinteger(L, img_xsize(d));
else
lua_pushinteger(L, img_ysize(d));
break;
case P_YSIZE: /* Modify by /Rotate only for output */
if ((img_rotation(d) & 1) == 0)
lua_pushinteger(L, img_ysize(d));
else
lua_pushinteger(L, img_xsize(d));
break;
case P_XRES:
lua_pushinteger(L, img_xres(d));
break;
case P_YRES:
lua_pushinteger(L, img_yres(d));
break;
case P_ROTATION:
lua_pushinteger(L, img_rotation(d));
break;
case P_COLORSPACE:
if (img_colorspace(d) == 0)
lua_pushnil(L);
else
lua_pushinteger(L, img_colorspace(d));
break;
case P_COLORDEPTH:
if (img_colordepth(d) == 0)
lua_pushnil(L);
else
lua_pushinteger(L, img_colordepth(d));
break;
case P_IMAGETYPE:
j = img_type(d);
if (j >= 0 && j <= imgtype_max) {
if (j == IMG_TYPE_NONE)
lua_pushnil(L);
else
lua_pushstring(L, imgtype_s[j]);
} else
assert(0);
break;
case P_PAGEBOX:
j = img_pagebox(d);
if (j >= 0 && j <= pagebox_max) {
if (j == PDF_BOX_SPEC_NONE)
lua_pushnil(L);
else
lua_pushstring(L, pdfboxspec_s[j]);
} else
assert(0);
break;
case P_BBOX:
if (!img_is_bbox(d)) {
img_bbox(d)[0] = img_xorig(d);
img_bbox(d)[1] = img_yorig(d);
img_bbox(d)[2] = img_xorig(d) + img_xsize(d);
img_bbox(d)[3] = img_yorig(d) + img_ysize(d);
}
lua_newtable(L);
lua_pushinteger(L, 1);
lua_pushinteger(L, img_bbox(d)[0]);
lua_settable(L, -3);
lua_pushinteger(L, 2);
lua_pushinteger(L, img_bbox(d)[1]);
lua_settable(L, -3);
lua_pushinteger(L, 3);
lua_pushinteger(L, img_bbox(d)[2]);
lua_settable(L, -3);
lua_pushinteger(L, 4);
lua_pushinteger(L, img_bbox(d)[3]);
lua_settable(L, -3);
break;
case P_OBJNUM:
if (img_objnum(d) == 0)
lua_pushnil(L);
else
lua_pushinteger(L, img_objnum(d));
break;
case P_INDEX:
if (img_index(d) == 0)
lua_pushnil(L);
else
lua_pushinteger(L, img_index(d));
break;
case P_STREAM:
if (img_type(d) != IMG_TYPE_PDFSTREAM || img_pdfstream_ptr(d) == NULL
|| img_pdfstream_stream(d) == NULL
|| strlen(img_pdfstream_stream(d)) == 0)
lua_pushnil(L);
else
lua_pushstring(L, img_pdfstream_stream(d));
break;
default:
assert(0);
} /* v u ... */
}
static int m_img_get(lua_State * L)
{
int j;
const char *s;
image **a = (image **) luaL_checkudata(L, 1, TYPE_IMG); /* k u */
image_dict *d = img_dict(*a);
if (d == NULL) {
luaL_error(L, "invalid image dictionary");
}
s = lua_tostring(L, 2);
if (lua_key_eq(s,width)) {
if (is_wd_running(*a)) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_width(*a));
}
} else if (lua_key_eq(s,height)) {
if (is_ht_running(*a)) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_height(*a));
}
} else if (lua_key_eq(s,depth)) {
if (is_dp_running(*a)) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_depth(*a));
}
} else if (lua_key_eq(s,transform)) {
lua_pushinteger(L, img_transform(*a));
} else if (lua_key_eq(s,filename)) {
if (img_filename(d) == NULL || strlen(img_filename(d)) == 0) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_filename(d));
}
} else if (lua_key_eq(s,visiblefilename)) {
if (img_visiblefilename(d) == NULL || strlen(img_visiblefilename(d)) == 0) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_visiblefilename(d));
}
} else if (lua_key_eq(s,keepopen)) {
lua_pushboolean(L, img_keepopen(d));
} else if (lua_key_eq(s,filepath)) {
if (img_filepath(d) == NULL || strlen(img_filepath(d)) == 0) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_filepath(d));
}
} else if (lua_key_eq(s,attr)) {
if (img_attr(d) == NULL || strlen(img_attr(d)) == 0) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_attr(d));
}
} else if (lua_key_eq(s,page)) {
if (img_pagename(d) != NULL && strlen(img_pagename(d)) != 0) {
lua_pushstring(L, img_pagename(d));
} else {
lua_pushinteger(L, img_pagenum(d));
}
} else if (lua_key_eq(s,pages)) {
lua_pushinteger(L, img_totalpages(d));
} else if (lua_key_eq(s,xsize)) {
if ((img_rotation(d) & 1) == 0) {
lua_pushinteger(L, img_xsize(d));
} else {
lua_pushinteger(L, img_ysize(d));
}
} else if (lua_key_eq(s,ysize)) {
if ((img_rotation(d) & 1) == 0) {
lua_pushinteger(L, img_ysize(d));
} else {
lua_pushinteger(L, img_xsize(d));
}
} else if (lua_key_eq(s,xres)) {
lua_pushinteger(L, img_xres(d));
} else if (lua_key_eq(s,yres)) {
lua_pushinteger(L, img_yres(d));
} else if (lua_key_eq(s,rotation)) {
lua_pushinteger(L, img_rotation(d));
} else if (lua_key_eq(s,colorspace)) {
if (img_colorspace(d) == 0) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_colorspace(d));
}
} else if (lua_key_eq(s,colordepth)) {
if (img_colordepth(d) == 0) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_colordepth(d));
}
} else if (lua_key_eq(s,imagetype)) {
j = img_type(d);
if (j >= 0 && j <= img_types_max) {
if (j == IMG_TYPE_NONE) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_types[j]);
}
} else {
lua_pushnil(L);
}
} else if (lua_key_eq(s,pagebox)) {
j = img_pagebox(d);
if (j < 0 || j >= img_pageboxes_max) {
j = 0;
}
lua_push_img_pagebox(L, j);
} else if (lua_key_eq(s,bbox)) {
if (!img_is_bbox(d)) {
img_bbox(d)[0] = img_xorig(d);
img_bbox(d)[1] = img_yorig(d);
img_bbox(d)[2] = img_xorig(d) + img_xsize(d);
img_bbox(d)[3] = img_yorig(d) + img_ysize(d);
}
lua_newtable(L);
lua_pushinteger(L, 1);
lua_pushinteger(L, img_bbox(d)[0]);
lua_settable(L, -3);
lua_pushinteger(L, 2);
lua_pushinteger(L, img_bbox(d)[1]);
lua_settable(L, -3);
lua_pushinteger(L, 3);
lua_pushinteger(L, img_bbox(d)[2]);
lua_settable(L, -3);
lua_pushinteger(L, 4);
lua_pushinteger(L, img_bbox(d)[3]);
lua_settable(L, -3);
} else if (lua_key_eq(s,objnum)) {
if (img_objnum(d) == 0) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_objnum(d));
}
} else if (lua_key_eq(s,index)) {
if (img_index(d) == 0) {
lua_pushnil(L);
} else {
lua_pushinteger(L, img_index(d));
}
} else if (lua_key_eq(s,stream)) {
if (img_type(d) != IMG_TYPE_PDFSTREAM
|| img_pdfstream_ptr(d) == NULL
|| img_pdfstream_stream(d) == NULL
|| strlen(img_pdfstream_stream(d)) == 0) {
lua_pushnil(L);
} else {
lua_pushstring(L, img_pdfstream_stream(d));
}
} else if (lua_key_eq(s,ref_count)) {
lua_pushinteger(L, img_luaref(d));
} else {
lua_pushnil(L);
}
return 1;
}