C++ HPDF_Dict_New函数代码示例

HPDF_LinkAnnot_SetJavaScript(HPDF_Annotation annot, HPDF_JavaScript javascript)
{
   HPDF_Dict action;
   HPDF_STATUS ret;

   HPDF_PTRACE((" HPDF_LinkAnnot_SetJavaScript\n"));

    if (!CheckSubType (annot, HPDF_ANNOT_LINK))
        return HPDF_INVALID_ANNOTATION;

    /* create action dictionary */
   action = HPDF_Dict_New (annot->mmgr);
   if (!action)
        return HPDF_CheckError ( annot->error);

    ret = HPDF_Dict_Add (annot, "A", action);
    if (ret != HPDF_OK)
        return HPDF_CheckError (annot->error);

	ret += HPDF_Dict_Add (action, "JS", javascript);
    ret += HPDF_Dict_AddName (action, "S", "JavaScript");

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

    return HPDF_OK;
}

HPDF_Pages
HPDF_Pages_New  (HPDF_MMgr   mmgr,
                 HPDF_Pages  parent,
                 HPDF_Xref   xref)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_Pages pages;


    HPDF_PTRACE((" HPDF_Pages_New\n"));

    pages = HPDF_Dict_New (mmgr);
    if (!pages)
        return NULL;

    pages->header.obj_class |= HPDF_OSUBCLASS_PAGES;
    pages->before_write_fn = Pages_BeforeWrite;

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

    /* add requiered elements */
    ret += HPDF_Dict_AddName (pages, "Type", "Pages");
    ret += HPDF_Dict_Add (pages, "Kids", HPDF_Array_New (pages->mmgr));
    ret += HPDF_Dict_Add (pages, "Count", HPDF_Number_New (pages->mmgr, 0));

    if (ret == HPDF_OK && parent)
        ret += HPDF_Pages_AddKids (parent, pages);

    if (ret != HPDF_OK)
        return NULL;

    return pages;
}

HPDF_Annotation
HPDF_URILinkAnnot_New  (HPDF_MMgr          mmgr,
                        HPDF_Xref          xref,
                        HPDF_Rect          rect,
                        const char   *uri)
{
    HPDF_Annotation annot;
    HPDF_Dict action;
    HPDF_STATUS ret;

    HPDF_PTRACE((" HPDF_URILinkAnnot_New\n"));

    annot = HPDF_Annotation_New (mmgr, xref, HPDF_ANNOT_LINK, rect);
    if (!annot)
        return NULL;

    /* create action dictionary */
    action = HPDF_Dict_New (mmgr);
    if (!action)
        return NULL;

    ret = HPDF_Dict_Add (annot, "A", action);
    if (ret != HPDF_OK)
        return NULL;

    ret += HPDF_Dict_AddName (action, "Type", "Action");
    ret += HPDF_Dict_AddName (action, "S", "URI");
    ret += HPDF_Dict_Add (action, "URI", HPDF_String_New (mmgr, uri, NULL));

    if (ret != HPDF_OK)
        return NULL;

    return annot;
}

HPDF_NameTree
HPDF_NameTree_New  (HPDF_MMgr  mmgr,
                    HPDF_Xref  xref)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_NameTree ntree;
    HPDF_Array items;

    HPDF_PTRACE (" HPDF_NameTree_New\n");

    ntree = HPDF_Dict_New (mmgr);
    if (!ntree)
        return NULL;

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

    ntree->header.obj_class |= HPDF_OSUBCLASS_NAMETREE;

    items = HPDF_Array_New (mmgr);
    if (!ntree)
        return NULL;

    ret += HPDF_Dict_Add (ntree, "Names", items);
    if (ret != HPDF_OK)
        return NULL;

    return ntree;
}

HPDF_Catalog
HPDF_Catalog_New  (HPDF_MMgr  mmgr,
                   HPDF_Xref  xref)
{
    HPDF_Catalog catalog;
    HPDF_STATUS ret = 0;

    catalog = HPDF_Dict_New (mmgr);
    if (!catalog)
        return NULL;

    catalog->header.obj_class |= HPDF_OSUBCLASS_CATALOG;

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

    /* add requiered elements */
    ret += HPDF_Dict_AddName (catalog, "Type", "Catalog");
    ret += HPDF_Dict_Add (catalog, "Pages", HPDF_Pages_New (mmgr, NULL, xref));

    if (ret != HPDF_OK)
        return NULL;

    return catalog;
}

HPDF_ExData
HPDF_3DAnnotExData_New(HPDF_MMgr mmgr,
					   HPDF_Xref xref)
{
	HPDF_ExData exdata;
	HPDF_STATUS ret = HPDF_OK;


	HPDF_PTRACE (" HPDF_ExData_New\n");

	exdata = HPDF_Dict_New (mmgr);
	if (!exdata)
		return NULL;

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

	ret += HPDF_Dict_AddName (exdata, "Type", "ExData");
	ret += HPDF_Dict_AddName (exdata, "Subtype", "3DM");

	if (ret != HPDF_OK)
		return NULL;

	return exdata;
}

HPDF_EncryptDict
HPDF_EncryptDict_New  (HPDF_MMgr  mmgr,
                       HPDF_Xref  xref)
{
    HPDF_Encrypt attr;
    HPDF_EncryptDict dict;

    HPDF_PTRACE((" HPDF_EncryptDict_New\n"));

    dict = HPDF_Dict_New (mmgr);
    if (!dict)
        return NULL;

    dict->header.obj_class |= HPDF_OSUBCLASS_ENCRYPT;
    dict->free_fn = HPDF_EncryptDict_OnFree;

    attr = HPDF_GetMem (dict->mmgr, sizeof(HPDF_Encrypt_Rec));
    if (!attr) {
        HPDF_Dict_Free (dict);
        return NULL;
    }

    dict->attr = attr;
    HPDF_Encrypt_Init (attr);

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

    return dict;
}

HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetOrthogonalProjection(HPDF_Dict view, HPDF_REAL mag)
{
	HPDF_STATUS ret = HPDF_OK;
	HPDF_Dict projection;

	HPDF_PTRACE ((" HPDF_3DView_SetOrthogonalProjection\n"));

	if (view == NULL || mag <= 0) {
		return HPDF_INVALID_U3D_DATA;
	}

	projection = HPDF_Dict_New (view->mmgr);
	if (!projection) {
		return HPDF_Error_GetCode (view->error);
	}

	ret = HPDF_Dict_AddName (projection, "Subtype", "O");
	if (ret != HPDF_OK) {
		HPDF_Dict_Free (projection);
		return ret;
	}

	ret = HPDF_Dict_AddReal (projection, "OS", mag);
	if (ret != HPDF_OK) {
		HPDF_Dict_Free (projection);
		return ret;
	}

	ret = HPDF_Dict_Add (view, "P", projection);
	if (ret != HPDF_OK) {
		HPDF_Dict_Free (projection);
		return ret;
	}
	return ret;
}

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;
}

HPDF_EmbeddedFile
HPDF_EmbeddedFile_New  (HPDF_MMgr  mmgr,
                        HPDF_Xref  xref,
                        const char *file)
{
    HPDF_STATUS ret = HPDF_OK;
    HPDF_Dict ef;               /* the dictionary for the embedded file: /Type /EF */
    HPDF_String name;           /* the name of the file: /F (name) */
    HPDF_Dict eff;              /* ef has an /EF <<blah>> key - this is it */
    HPDF_Dict filestream;       /* the stream that /EF <</F _ _ R>> refers to */
    HPDF_Stream stream;

    ef = HPDF_Dict_New (mmgr);
    if (!ef)
        return NULL;
    if (HPDF_Xref_Add (xref, ef) != HPDF_OK)
        return NULL;

    filestream = HPDF_DictStream_New (mmgr, xref);
    if (!filestream)
        return NULL;
    stream = HPDF_FileReader_New (mmgr, file);
    if (!stream)
        return NULL;
    HPDF_Stream_Free(filestream->stream);
    filestream->stream = stream;
    filestream->filter = HPDF_STREAM_FILTER_FLATE_DECODE;

    eff = HPDF_Dict_New (mmgr);
    if (!eff)
        return NULL;

    name = HPDF_String_New (mmgr, file, NULL);
    if (!name)
        return NULL;

    ret += HPDF_Dict_AddName (ef, "Type", "F");
    ret += HPDF_Dict_Add (ef, "F", name);
    ret += HPDF_Dict_Add (ef, "EF", eff);
    ret += HPDF_Dict_Add (eff, "F", filestream);

    if (ret != HPDF_OK)
        return NULL;

    return ef;
}

HPDF_Page
HPDF_Page_New  (HPDF_MMgr   mmgr,
                HPDF_Xref   xref)
{
    HPDF_STATUS ret;
    HPDF_PageAttr attr;
    HPDF_Page page;

    HPDF_PTRACE((" HPDF_Page_New\n"));

    page = HPDF_Dict_New (mmgr);
    if (!page)
        return NULL;

    page->header.obj_class |= HPDF_OSUBCLASS_PAGE;
    page->free_fn = Page_OnFree;
    page->before_write_fn = Page_BeforeWrite;

    attr = HPDF_GetMem (page->mmgr, sizeof(HPDF_PageAttr_Rec));
    if (!attr) {
        HPDF_Dict_Free (page);
        return NULL;
    }

    page->attr = attr;
    HPDF_MemSet (attr, 0, sizeof(HPDF_PageAttr_Rec));
    attr->gmode = HPDF_GMODE_PAGE_DESCRIPTION;
    attr->cur_pos = HPDF_ToPoint (0, 0);
    attr->text_pos = HPDF_ToPoint (0, 0);

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

    attr->gstate = HPDF_GState_New (page->mmgr, NULL);
    attr->contents = HPDF_DictStream_New (page->mmgr, xref);

    if (!attr->gstate || !attr->contents)
        return NULL;

    attr->stream = attr->contents->stream;
    attr->xref = xref;

    /* add requiered elements */
    ret += HPDF_Dict_AddName (page, "Type", "Page");
    ret += HPDF_Dict_Add (page, "MediaBox", HPDF_Box_Array_New (page->mmgr,
                HPDF_ToBox (0, 0, (HPDF_INT16)(HPDF_DEF_PAGE_WIDTH), (HPDF_INT16)(HPDF_DEF_PAGE_HEIGHT))));
    ret += HPDF_Dict_Add (page, "Contents", attr->contents);

    ret += AddResource (page);

    if (ret != HPDF_OK)
        return NULL;

    return page;
}

HPDF_Xref
HPDF_Xref_New  (HPDF_MMgr     mmgr,
                HPDF_UINT32   offset)
{
    HPDF_Xref xref;
    HPDF_XrefEntry new_entry;

    HPDF_PTRACE((" HPDF_Xref_New\n"));

    xref = (HPDF_Xref)HPDF_GetMem (mmgr, sizeof(HPDF_Xref_Rec));
    if (!xref)
        return NULL;

    HPDF_MemSet (xref, 0, sizeof(HPDF_Xref_Rec));
    xref->mmgr = mmgr;
    xref->error = mmgr->error;
    xref->start_offset = offset;

    xref->entries = HPDF_List_New (mmgr, HPDF_DEFALUT_XREF_ENTRY_NUM);
    if (!xref->entries)
        goto Fail;

    xref->addr = 0;

    if (xref->start_offset == 0) {
        new_entry = (HPDF_XrefEntry)HPDF_GetMem (mmgr,
                sizeof(HPDF_XrefEntry_Rec));
        if (!new_entry)
            goto Fail;

        if (HPDF_List_Add (xref->entries, new_entry) != HPDF_OK) {
            HPDF_FreeMem (mmgr, new_entry);
            goto Fail;
        }

        /* add first entry which is free entry and whose generation
         * number is 0
         */
        new_entry->entry_typ = HPDF_FREE_ENTRY;
        new_entry->byte_offset = 0;
        new_entry->gen_no = HPDF_MAX_GENERATION_NUM;
        new_entry->obj = NULL;
    }

    xref->trailer = HPDF_Dict_New (mmgr);
    if (!xref->trailer)
        goto Fail;

    return xref;

Fail:
    HPDF_PTRACE((" HPDF_Xref_New failed\n"));
    HPDF_Xref_Free (xref);
    return NULL;
}

HPDF_Dict
HPDF_PageLabel_New  (HPDF_Doc             pdf,
                     HPDF_PageNumStyle    style,
                     HPDF_INT             first_page,
                     const char     *prefix)
{
    HPDF_Dict obj = HPDF_Dict_New (pdf->mmgr);

    HPDF_PTRACE ((" HPDF_PageLabel_New\n"));

    if (!obj)
        return NULL;

    switch (style) {
        case HPDF_PAGE_NUM_STYLE_DECIMAL:
            if (HPDF_Dict_AddName (obj, "S", "D") != HPDF_OK)
                goto Fail;
            break;
        case HPDF_PAGE_NUM_STYLE_UPPER_ROMAN:
            if (HPDF_Dict_AddName (obj, "S", "R") != HPDF_OK)
                goto Fail;
            break;
        case HPDF_PAGE_NUM_STYLE_LOWER_ROMAN:
            if (HPDF_Dict_AddName (obj, "S", "r") != HPDF_OK)
                goto Fail;
            break;
        case HPDF_PAGE_NUM_STYLE_UPPER_LETTERS:
            if (HPDF_Dict_AddName (obj, "S", "A") != HPDF_OK)
                goto Fail;
            break;
        case HPDF_PAGE_NUM_STYLE_LOWER_LETTERS:
            if (HPDF_Dict_AddName (obj, "S", "a") != HPDF_OK)
                goto Fail;
            break;
        default:
            HPDF_SetError (&pdf->error, HPDF_PAGE_NUM_STYLE_OUT_OF_RANGE,
                    (HPDF_STATUS)style);
            goto Fail;
    }

    if (prefix && prefix[0] != 0)
        if (HPDF_Dict_Add (obj, "P", HPDF_String_New (pdf->mmgr, prefix,
                    pdf->def_encoder)) != HPDF_OK)
            goto Fail;

    if (first_page != 0)
        if (HPDF_Dict_AddNumber (obj, "St", first_page) != HPDF_OK)
            goto Fail;

    return obj;

Fail:
    HPDF_Dict_Free (obj);
    return NULL;
}

const char*
HPDF_Page_GetLocalFontName  (HPDF_Page  page,
                             HPDF_Font  font)
{
    HPDF_PageAttr attr = (HPDF_PageAttr )page->attr;
    const char *key;

    HPDF_PTRACE((" HPDF_Page_GetLocalFontName\n"));

    /* whether check font-resource exists.  when it does not exists,
     * create font-resource
     * 2006.07.21 Fixed a problem which may cause a memory leak.
     */
    if (!attr->fonts) {
        HPDF_Dict resources;
        HPDF_Dict fonts;

        resources = HPDF_Page_GetInheritableItem (page, "Resources",
                        HPDF_OCLASS_DICT);
        if (!resources)
            return NULL;

        fonts = HPDF_Dict_New (page->mmgr);
        if (!fonts)
            return NULL;

        if (HPDF_Dict_Add (resources, "Font", fonts) != HPDF_OK)
            return NULL;

        attr->fonts = fonts;
    }

    /* search font-object from font-resource */
    key = HPDF_Dict_GetKeyByObj (attr->fonts, font);
    if (!key) {
        /* if the font is not resisterd in font-resource, register font to
         * font-resource.
         */
        char fontName[HPDF_LIMIT_MAX_NAME_LEN + 1];
        char *ptr;
        char *end_ptr = fontName + HPDF_LIMIT_MAX_NAME_LEN;

        ptr = (char *)HPDF_StrCpy (fontName, "F", end_ptr);
        HPDF_IToA (ptr, attr->fonts->list->count + 1, end_ptr);

        if (HPDF_Dict_Add (attr->fonts, fontName, font) != HPDF_OK)
            return NULL;

        key = HPDF_Dict_GetKeyByObj (attr->fonts, font);
    }

    return key;
}

const char*
HPDF_Page_GetExtGStateName  (HPDF_Page       page,
                             HPDF_ExtGState  state)
{
    HPDF_PageAttr attr = (HPDF_PageAttr )page->attr;
    const char *key;

    HPDF_PTRACE((" HPDF_Page_GetExtGStateName\n"));

    if (!attr->ext_gstates) {
        HPDF_Dict resources;
        HPDF_Dict ext_gstates;

        resources = HPDF_Page_GetInheritableItem (page, "Resources",
                        HPDF_OCLASS_DICT);
        if (!resources)
            return NULL;

        ext_gstates = HPDF_Dict_New (page->mmgr);
        if (!ext_gstates)
            return NULL;

        if (HPDF_Dict_Add (resources, "ExtGState", ext_gstates) != HPDF_OK)
            return NULL;

        attr->ext_gstates = ext_gstates;
    }

    /* search ext_gstate-object from ext_gstate-resource */
    key = HPDF_Dict_GetKeyByObj (attr->ext_gstates, state);
    if (!key) {
        /* if the ext-gstate is not resisterd in ext-gstate resource, register
         *  to ext-gstate resource.
         */
        char ext_gstate_name[HPDF_LIMIT_MAX_NAME_LEN + 1];
        char *ptr;
        char *end_ptr = ext_gstate_name + HPDF_LIMIT_MAX_NAME_LEN;

        ptr = (char *)HPDF_StrCpy (ext_gstate_name, "E", end_ptr);
        HPDF_IToA (ptr, attr->ext_gstates->list->count + 1, end_ptr);

        if (HPDF_Dict_Add (attr->ext_gstates, ext_gstate_name, state) != HPDF_OK)
            return NULL;

        key = HPDF_Dict_GetKeyByObj (attr->ext_gstates, state);
    }

    return key;
}