Beispiel #1
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 #2
0
image_dict *new_image_dict(void)
{
    image_dict *p = xtalloc(1, image_dict);
    memset(p, 0, sizeof(image_dict));
    set_wd_running(p);
    set_ht_running(p);
    set_dp_running(p);
    img_transform(p) = 0;
    img_pagenum(p) = 1;
    img_type(p) = IMG_TYPE_NONE;
    img_pagebox(p) = PDF_BOX_SPEC_MEDIA;
    img_unset_bbox(p);
    img_unset_group(p);
    img_state(p) = DICT_NEW;
    /*tex A value of -1 means unused while the used counts from 0 */
    img_index(p) = -1;
    img_luaref(p) = 0;
    img_errorlevel(p) = pdf_inclusion_errorlevel;
    fix_pdf_version(static_pdf);
    img_pdfmajorversion(p) = pdf_major_version;
    img_pdfminorversion(p) = pdf_minor_version;
    return p;
}
Beispiel #3
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 #4
0
static void lua_to_image(lua_State * L, image * a, image_dict * d)
{
    int i, t;
    const char *s;
    s = lua_tostring(L,-2);
    t = lua_type(L, -1);
    if (lua_key_eq(s,width)) {
        if (t == LUA_TNIL) {
            set_wd_running(a);
        } else if (t == LUA_TNUMBER) {
            img_width(a) = (int) lua_roundnumber(L, -1);
        } else if (t == 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");
        }
    } else if (lua_key_eq(s,height)) {
        if (t == LUA_TNIL) {
            set_ht_running(a);
        } else if (t == LUA_TNUMBER) {
            img_height(a) = (int) lua_roundnumber(L, -1);
        } else if (t == 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");
        }
    } else if (lua_key_eq(s,depth)) {
        if (t == LUA_TNIL) {
            set_dp_running(a);
        } else if (t == LUA_TNUMBER) {
            img_depth(a) = (int) lua_roundnumber(L, -1);
        } else if (t == 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");
        }
    } else if (lua_key_eq(s,transform)) {
        if (t == LUA_TNUMBER) {
            img_transform(a) = (int) lua_tointeger(L, -1);
        } else {
            luaL_error(L, "image.transform needs integer value");
        }
    } else if (lua_key_eq(s,filename)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.filename is now read-only");
        } else if (img_type(d) == IMG_TYPE_PDFSTREAM) {
            luaL_error(L, "image.filename can't be used with image.stream");
        } else if (t == LUA_TSTRING) {
            xfree(img_filename(d));
            img_filename(d) = xstrdup(lua_tostring(L, -1));
        } else {
            luaL_error(L, "image.filename needs string value");
        }
    } else if (lua_key_eq(s,visiblefilename)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.visiblefilename is now read-only");
        } else if (img_type(d) == IMG_TYPE_PDFSTREAM) {
            luaL_error(L, "image.visiblefilename can't be used with image.stream");
        } else if (t == LUA_TSTRING) {
            xfree(img_visiblefilename(d));
            img_visiblefilename(d) = xstrdup(lua_tostring(L, -1));
        } else {
            luaL_error(L, "image.visiblefilename needs string value");
        }
    } else if (lua_key_eq(s,attr)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.attr is now read-only");
        } else if (t == LUA_TSTRING) {
            xfree(img_attr(d));
            img_attr(d) = xstrdup(lua_tostring(L, -1));
        } else if (t == LUA_TNIL) {
            xfree(img_attr(d));
        } else {
            luaL_error(L, "image.attr needs string or nil value");
        }
    } else if (lua_key_eq(s,page)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.page is now read-only");
        } else if (t == LUA_TSTRING) {
            xfree(img_pagename(d));
            img_pagename(d) = xstrdup(lua_tostring(L, -1));
            img_pagenum(d) = 0;
        } else if (t == 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");
        }
    } else if (lua_key_eq(s,colorspace)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.colorspace is now read-only");
        } else if (t == LUA_TNIL) {
            img_colorspace(d) = 0;
        } else if (t == LUA_TNUMBER) {
            img_colorspace(d) = (int) lua_tointeger(L, -1);
        } else {
            luaL_error(L, "image.colorspace needs integer or nil value");
        }
    } else if (lua_key_eq(s,pagebox)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.pagebox is now read-only");
        } else if (t == LUA_TNIL) {
            img_pagebox(d) = PDF_BOX_SPEC_MEDIA;
        } else if (t == LUA_TNUMBER) {
            i = lua_tointeger(L,-1);
            if (i < 0 || i >= img_pageboxes_max) {
                img_pagebox(d) = PDF_BOX_SPEC_MEDIA;
            } else {
                img_pagebox(d) = i;
            }
        } else if (t == LUA_TSTRING) {
            img_pagebox(d) = PDF_BOX_SPEC_MEDIA;
            for (i = 0; i < img_pageboxes_max; i++) {
                lua_rawgeti(L, LUA_REGISTRYINDEX, img_pageboxes[i]);
                if (lua_rawequal(L,-1,-2)) {
                    img_pagebox(d) = i;
                    lua_pop(L, 1);
                    break;
                } else {
                    lua_pop(L, 1);
                }
            }
        } else {
            luaL_error(L, "image.pagebox needs string, number or nil value");
        }
    } else if (lua_key_eq(s,keepopen)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.keepopen is now read-only");
        } else if (t != LUA_TBOOLEAN) {
            luaL_error(L, "image.bbox needs boolean value");
        } else {
            img_keepopen(d) = lua_toboolean(L, -1);
        }
    } else if (lua_key_eq(s,bbox)) {
        if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.bbox is now read-only");
        } else if (t != LUA_TTABLE) {
            luaL_error(L, "image.bbox needs table value");
        } else if (lua_rawlen(L, -1) != 4) {
            luaL_error(L, "image.bbox table must have exactly 4 elements");
        } else {
            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 ... */
                t = lua_type(L, -1);
                if (t == LUA_TNUMBER) {
                    img_bbox(d)[i - 1] = (int) lua_roundnumber(L, -1);
                } else if (t == 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);
        }
    } else if (lua_key_eq(s,stream)) {
        if (img_filename(d) != NULL) {
            luaL_error(L, "image.stream can't be used with image.filename");
        } else if (img_state(d) >= DICT_FILESCANNED) {
            luaL_error(L, "image.stream is now read-only");
        } else {
            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;
        }
    } else {
        luaL_error(L, "image.%s can not be set", s);
    }
}