Beispiel #1
0
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");
    }
}
Beispiel #2
0
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);
}
Beispiel #3
0
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;
}
Beispiel #4
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;
}
Beispiel #5
0
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 */
}
Beispiel #6
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 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;
}
Beispiel #7
0
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));
            }
        }
    }
}
Beispiel #8
0
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;
}
Beispiel #9
0
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;
}
Beispiel #10
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;
}
Beispiel #11
0
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);              /* ... */
}
Beispiel #12
0
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);
}
Beispiel #13
0
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;
}
Beispiel #14
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;
}
Beispiel #15
0
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);
    }
}
Beispiel #16
0
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);
    }
}
Beispiel #17
0
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));
}
Beispiel #18
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);
    /* 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;
}
Beispiel #19
0
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;
}
Beispiel #20
0
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;
}
Beispiel #21
0
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 ... */
}
Beispiel #22
0
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 ... */
}
Beispiel #23
0
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;
}