C++ HPDF_Array_Add函数代码示例

HPDF_Array
HPDF_Box_Array_New  (HPDF_MMgr  mmgr,
                     HPDF_Box   box)
{
    HPDF_Array  obj;
    HPDF_STATUS ret = HPDF_OK;

    HPDF_PTRACE((" HPDF_Box_Array_New\n"));

    obj = HPDF_Array_New (mmgr);
    if (!obj)
        return NULL;

    ret += HPDF_Array_Add (obj, HPDF_Real_New (mmgr, box.left));
    ret += HPDF_Array_Add (obj, HPDF_Real_New (mmgr, box.bottom));
    ret += HPDF_Array_Add (obj, HPDF_Real_New (mmgr, box.right));
    ret += HPDF_Array_Add (obj, HPDF_Real_New (mmgr, box.top));

    if (ret != HPDF_OK) {
        HPDF_Array_Free (obj);
        return NULL;
    }

    return obj;
}

HPDF_STATUS
AddResource  (HPDF_Page  page)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_Dict resource;
    HPDF_Array procset;

    HPDF_PTRACE((" HPDF_Page_AddResource\n"));

    resource = HPDF_Dict_New (page->mmgr);
    if (!resource)
        return HPDF_Error_GetCode (page->error);

    /* althoth ProcSet-entry is obsolete, add it to resouce for
     * compatibility
     */

    ret += HPDF_Dict_Add (page, "Resources", resource);

    procset = HPDF_Array_New (page->mmgr);
    if (!procset)
        return HPDF_Error_GetCode (page->error);

    ret += HPDF_Dict_Add (resource, "ProcSet", procset);
    ret += HPDF_Array_Add (procset, HPDF_Name_New (page->mmgr, "PDF"));
    ret += HPDF_Array_Add (procset, HPDF_Name_New (page->mmgr, "Text"));
    ret += HPDF_Array_Add (procset, HPDF_Name_New (page->mmgr, "ImageB"));
    ret += HPDF_Array_Add (procset, HPDF_Name_New (page->mmgr, "ImageC"));
    ret += HPDF_Array_Add (procset, HPDF_Name_New (page->mmgr, "ImageI"));

    return ret;
}

/* Generate an ID for the trailer dict, PDF/A needs this.
   TODO: Better algorithm for generate unique ID.
*/
HPDF_STATUS
HPDF_PDFA_GenerateID(HPDF_Doc pdf)
{
    HPDF_Array id;
    HPDF_BYTE *currentTime;
    HPDF_BYTE idkey[HPDF_MD5_KEY_LEN];
    HPDF_MD5_CTX md5_ctx;
    time_t ltime;

    ltime = time(NULL);
    currentTime = (HPDF_BYTE *)ctime(&ltime);

    id = HPDF_Dict_GetItem(pdf->trailer, "ID", HPDF_OCLASS_ARRAY);
    if (!id) {
        id = HPDF_Array_New(pdf->mmgr);

        if (!id || HPDF_Dict_Add(pdf->trailer, "ID", id) != HPDF_OK)
            return pdf->error.error_no;

        HPDF_MD5Init(&md5_ctx);
        HPDF_MD5Update(&md5_ctx, (HPDF_BYTE *) "libHaru", sizeof("libHaru") - 1);
        HPDF_MD5Update(&md5_ctx, currentTime, HPDF_StrLen((const char *)currentTime, -1));
        HPDF_MD5Final(idkey, &md5_ctx);

        if (HPDF_Array_Add (id, HPDF_Binary_New (pdf->mmgr, idkey, HPDF_MD5_KEY_LEN)) != HPDF_OK)
            return pdf->error.error_no;

        if (HPDF_Array_Add (id, HPDF_Binary_New (pdf->mmgr,idkey,HPDF_MD5_KEY_LEN)) != HPDF_OK)
            return pdf->error.error_no;

        return HPDF_OK;
    }

    return HPDF_OK;
}

HPDF_STATUS
HPDF_NameTree_Add  (HPDF_NameTree  tree,
                    HPDF_String    name,
                    void          *obj)
{
    HPDF_Array items;
    HPDF_INT32 i, icount;

    if (!tree || !name)
        return HPDF_INVALID_PARAMETER;

    items = HPDF_Dict_GetItem (tree, "Names", HPDF_OCLASS_ARRAY);
    if (!items)
        return HPDF_INVALID_OBJECT;

    /* "The keys shall be sorted in lexical order" -- 7.9.6, Name Trees.
     * Since we store keys sorted, it's best to do a linear insertion sort
     * Find the first element larger than 'key', and insert 'key' and then
     * 'obj' into the items. */

    icount = HPDF_Array_Items(items);

    /* If we're larger than the last element, append */
    if (icount) {
        HPDF_String last = HPDF_Array_GetItem(items, icount - 2, HPDF_OCLASS_STRING);

        if (HPDF_String_Cmp(name, last) > 0) {
            HPDF_Array_Add(items, name);
            HPDF_Array_Add(items, obj);
            return HPDF_OK;
        }
    }

    /* Walk backwards through the list until we're smaller than an element=
     * That's the element to insert in front of. */
    for (i = icount - 4; i >= 0; i -= 2) {
        HPDF_String elem = HPDF_Array_GetItem(items, i, HPDF_OCLASS_STRING);

        if (i == 0 || HPDF_String_Cmp(name, elem) < 0) {
            HPDF_Array_Insert(items, elem, name);
            HPDF_Array_Insert(items, elem, obj);
            return HPDF_OK;
        }
    }

    /* Items list is empty */
    HPDF_Array_Add(items, name);
    HPDF_Array_Add(items, obj);
    return HPDF_OK;
}

HPDF_STATUS
HPDF_Pages_AddKids  (HPDF_Pages  parent,
                     HPDF_Dict   kid)
{
    HPDF_Array kids;
    HPDF_STATUS ret;

    HPDF_PTRACE((" HPDF_Pages_AddKids\n"));

    if (HPDF_Dict_GetItem (kid, "Parent", HPDF_OCLASS_DICT))
        return HPDF_SetError (parent->error, HPDF_PAGE_CANNOT_SET_PARENT, 0);

    if ((ret = HPDF_Dict_Add (kid, "Parent", parent)) != HPDF_OK)
        return ret;

    kids = (HPDF_Array )HPDF_Dict_GetItem (parent, "Kids", HPDF_OCLASS_ARRAY);
    if (!kids)
        return HPDF_SetError (parent->error, HPDF_PAGES_MISSING_KIDS_ENTRY, 0);

    if (kid->header.obj_class == (HPDF_OCLASS_DICT | HPDF_OSUBCLASS_PAGE)) {
        HPDF_PageAttr attr = (HPDF_PageAttr)kid->attr;

        attr->parent = parent;
    }

    return HPDF_Array_Add (kids, kid);
}

static HPDF_STATUS
AddAnnotation  (HPDF_Page        page,
                HPDF_Annotation  annot)
{
    HPDF_Array array;
    HPDF_STATUS ret = HPDF_OK;

    HPDF_PTRACE((" HPDF_Pages\n"));

    /* find "Annots" entry */
    array = HPDF_Dict_GetItem (page, "Annots", HPDF_OCLASS_ARRAY);

    if (!array) {
        array = HPDF_Array_New (page->mmgr);
        if (!array)
            return HPDF_Error_GetCode (page->error);

        ret = HPDF_Dict_Add (page, "Annots", array);
        if (ret != HPDF_OK)
            return ret;
    }
    
    if ((ret = HPDF_Array_Add (array, annot)) != HPDF_OK)
       return ret;

    /* Add Parent to the annotation  */
    ret = HPDF_Dict_Add( annot, "P", page);

    return ret;
}

HPDF_Destination_SetXYZ  (HPDF_Destination  dst,
                          HPDF_REAL         left,
                          HPDF_REAL         top,
                          HPDF_REAL         zoom)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_Page target;

    HPDF_PTRACE((" HPDF_Destination_SetXYZ\n"));

    if (!HPDF_Destination_Validate (dst))
        return HPDF_INVALID_DESTINATION;

    if (left < 0 || top < 0 || zoom < 0.08 || zoom > 32)
        return HPDF_RaiseError (dst->error, HPDF_INVALID_PARAMETER, 0);


    target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);

    if (dst->list->count > 1) {
        HPDF_Array_Clear (dst);
        ret += HPDF_Array_Add (dst, target);
    }

    ret += HPDF_Array_AddName (dst,
                HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_XYZ]);
    ret += HPDF_Array_AddReal (dst, left);
    ret += HPDF_Array_AddReal (dst, top);
    ret += HPDF_Array_AddReal (dst, zoom);

    if (ret != HPDF_OK)
        return HPDF_CheckError (dst->error);

    return HPDF_OK;
}

HPDF_Destination
HPDF_Destination_New  (HPDF_MMgr   mmgr,
                       HPDF_Page   target,
                       HPDF_Xref   xref)
{
    HPDF_Destination dst;

    HPDF_PTRACE((" HPDF_Destination_New\n"));

    if (!HPDF_Page_Validate (target)) {
        HPDF_SetError (mmgr->error, HPDF_INVALID_PAGE, 0);
        return NULL;
    }

    dst = HPDF_Array_New (mmgr);
    if (!dst)
        return NULL;

    dst->header.obj_class |= HPDF_OSUBCLASS_DESTINATION;

    if (HPDF_Xref_Add (xref, dst) != HPDF_OK)
        return NULL;

    /* first item of array must be target page */
    if (HPDF_Array_Add (dst, target) != HPDF_OK)
        return NULL;

    /* default type is HPDF_FIT */
    if (HPDF_Array_AddName (dst,
            HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT]) != HPDF_OK)
        return NULL;

    return dst;
}

HPDF_Destination_SetFitBV  (HPDF_Destination  dst,
                            HPDF_REAL         left)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_Page target;

    HPDF_PTRACE((" HPDF_Destination_SetFitBV\n"));

    if (!HPDF_Destination_Validate (dst))
        return HPDF_INVALID_DESTINATION;

    target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);

    if (dst->list->count > 1) {
        HPDF_Array_Clear (dst);
        ret += HPDF_Array_Add (dst, target);
    }

    ret += HPDF_Array_AddName (dst,
                HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_BV]);
    ret += HPDF_Array_AddReal (dst, left);

    if (ret != HPDF_OK)
        return HPDF_CheckError (dst->error);

    return HPDF_OK;

}

HPDF_EXPORT(HPDF_STATUS) HPDF_U3D_Add3DView(HPDF_U3D u3d, HPDF_Dict view)
{
	HPDF_Array views = NULL;
	HPDF_STATUS ret = HPDF_OK;

	HPDF_PTRACE ((" HPDF_Add3DView\n"));

	if (u3d == NULL || view == NULL) {
		return HPDF_INVALID_U3D_DATA;
	}

	views = (HPDF_Array)HPDF_Dict_GetItem (u3d, "VA", HPDF_OCLASS_ARRAY);
	if (views == NULL) {
		views = HPDF_Array_New (u3d->mmgr);
		if (!views) {
			return HPDF_Error_GetCode (u3d->error);
		}

		ret = HPDF_Dict_Add (u3d, "VA", views);
		if (ret == HPDF_OK) {
			ret = HPDF_Dict_AddNumber (u3d, "DV", 0);
		} else {
			HPDF_Array_Free (views);
			return ret;
		}
	}

	if (ret == HPDF_OK) {
		ret = HPDF_Array_Add( views, view);
	}

	return ret;
}

HPDF_3DView_Add3DC3DMeasure(HPDF_Dict       view,
							HPDF_3DMeasure measure)
{

	HPDF_STATUS ret = HPDF_OK;
	HPDF_Array array;
	void* a;

	a = HPDF_Dict_GetItem (view, "MA", HPDF_OCLASS_ARRAY);

	if ( a )
	{
		array = (HPDF_Array)a;
	}
	else
	{
		array = HPDF_Array_New (view->mmgr);
		if (!array)
			return 0;

		if (HPDF_Dict_Add (view, "MA", array) != HPDF_OK)
			return 0;
	}

	ret = HPDF_Array_Add(array, measure);

	return ret;
}

HPDF_STATUS
HPDF_Array_AddNull  (HPDF_Array  array)
{
    HPDF_Null n = HPDF_Null_New (array->mmgr);

    HPDF_PTRACE (" HPDF_Array_AddNull\n");

    if (!n)
        return HPDF_Error_GetCode (array->error);
    else
        return HPDF_Array_Add (array, n);
}

static HPDF_STATUS
CreatePallet (HPDF_Dict    image,
              png_structp  png_ptr,
              png_infop    info_ptr)
{
    HPDF_INT num_pl = 0;
    png_color *src_pl = NULL;
    HPDF_BYTE *ppallet;
    HPDF_BYTE *p;
    HPDF_UINT i;
    HPDF_Array array;

    /* png_get_PLTE does not call PngErrorFunc even if it failed.
     * so we call HPDF_Set_Error to set error-code.
     */
    if (png_get_PLTE(png_ptr, info_ptr, (png_color**)&src_pl, &num_pl) !=
            PNG_INFO_PLTE)
        return HPDF_SetError (image->error, HPDF_LIBPNG_ERROR,
                    HPDF_CANNOT_GET_PALLET);


    /* make a pallet array for indexed image. */
    ppallet = HPDF_GetMem (image->mmgr, num_pl * 3);
    if (!ppallet)
        return image->error->error_no;

    p = ppallet;
    for (i = 0; i < num_pl; i++, src_pl++) {
        *p++ = src_pl->red;
        *p++ = src_pl->green;
        *p++ = src_pl->blue;
    }

    array = HPDF_Array_New (image->mmgr);
    if (array) {
        HPDF_Binary b;

        HPDF_Dict_Add (image, "ColorSpace", array);

        HPDF_Array_AddName (array, "Indexed");
        HPDF_Array_AddName (array, "DeviceRGB");
        HPDF_Array_AddNumber (array, num_pl - 1);

        b = HPDF_Binary_New (image->mmgr, ppallet, num_pl * 3);
        if (b)
            HPDF_Array_Add (array, b);
    }

    HPDF_FreeMem (image->mmgr, ppallet);

    return image->error->error_no;
}

HPDF_STATUS
HPDF_Array_AddReal  (HPDF_Array  array,
                     HPDF_REAL   value)
{
    HPDF_Real r = HPDF_Real_New (array->mmgr, value);

    HPDF_PTRACE((" HPDF_Array_AddReal\n"));

    if (!r)
        return HPDF_Error_GetCode (array->error);
    else
        return HPDF_Array_Add (array, r);
}

HPDF_STATUS
HPDF_Array_AddName  (HPDF_Array       array,
                     const char  *value)
{
    HPDF_Name n = HPDF_Name_New (array->mmgr, value);

    HPDF_PTRACE((" HPDF_Array_AddName\n"));

    if (!n)
        return HPDF_Error_GetCode (array->error);
    else
        return HPDF_Array_Add (array, n);
}