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+/* $Header: /home/cvsroot/dvipdfmx/src/pdfobj.h,v 1.21 2005/05/04 16:10:06 hirata Exp $
+
+ This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
+
+ Copyright (C) 2002 by Jin-Hwan Cho and Shunsaku Hirata,
+ the dvipdfmx project team <dvipdfmx@project.ktug.or.kr>
+
+ Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+*/
+
+#ifndef _PDFOBJ_H_
+#define _PDFOBJ_H_
+
+#include <stdio.h>
+
+/* Here is the complete list of PDF object types */
+
+#define PDF_BOOLEAN 1
+#define PDF_NUMBER 2
+#define PDF_STRING 3
+#define PDF_NAME 4
+#define PDF_ARRAY 5
+#define PDF_DICT 6
+#define PDF_STREAM 7
+#define PDF_NULL 8
+#define PDF_INDIRECT 9
+
+#define PDF_OBJ_INVALID 0
+#define PDF_UNDEFINED PDF_OBJ_INVALID
+
+#define STREAM_COMPRESS (1 << 0)
+
+typedef struct pdf_obj pdf_obj;
+
+/* External interface to pdf routines */
+
+extern void pdf_obj_set_verbose (void);
+extern void pdf_error_cleanup (void);
+
+extern void pdf_out_init (const char *filename);
+extern void pdf_out_flush (void);
+extern void pdf_set_version (unsigned version);
+extern unsigned pdf_get_version (void);
+
+extern pdf_obj *pdf_new_obj (int type);
+extern void pdf_release_obj (pdf_obj *object);
+extern int pdf_obj_typeof (pdf_obj *object);
+
+#define PDF_OBJ_NUMBERTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_NUMBER)
+#define PDF_OBJ_BOOLEANTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_BOOLEAN)
+#define PDF_OBJ_STRINGTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_STRING)
+#define PDF_OBJ_NAMETYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_NAME)
+#define PDF_OBJ_ARRAYTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_ARRAY)
+#define PDF_OBJ_NULLTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_NULL)
+#define PDF_OBJ_DICTTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_DICT)
+#define PDF_OBJ_STREAMTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_STREAM)
+#define PDF_OBJ_INDIRECTTYPE(o) ((o) && pdf_obj_typeof((o)) == PDF_INDIRECT)
+
+#define PDF_OBJ_TYPEOF(o) pdf_obj_typeof((o))
+
+
+extern pdf_obj *pdf_ref_obj (pdf_obj *object);
+extern pdf_obj *pdf_link_obj (pdf_obj *object);
+
+extern pdf_obj *pdf_new_null (void);
+
+extern pdf_obj *pdf_new_boolean (char value);
+extern void pdf_set_boolean (pdf_obj *object, char value);
+extern char pdf_boolean_value (pdf_obj *object);
+
+extern pdf_obj *pdf_new_number (double value);
+extern void pdf_set_number (pdf_obj *object, double value);
+extern double pdf_number_value (pdf_obj *number);
+
+extern pdf_obj *pdf_new_string (const void *str, unsigned length);
+extern void pdf_set_string (pdf_obj *object, unsigned char *str, unsigned length);
+extern void *pdf_string_value (pdf_obj *object);
+extern unsigned pdf_string_length (pdf_obj *object);
+
+/* Name does not include the / */
+extern pdf_obj *pdf_new_name (const char *name);
+extern void pdf_set_name (pdf_obj *object, const char *name);
+extern char *pdf_name_value (pdf_obj *object);
+
+extern pdf_obj *pdf_new_array (void);
+/* pdf_add_dict requires key but pdf_add_array does not.
+ * pdf_add_array always append elements to array.
+ * They should be pdf_put_array(array, idx, element) and
+ * pdf_put_dict(dict, key, value)
+ */
+extern void pdf_add_array (pdf_obj *array, pdf_obj *object);
+extern void pdf_put_array (pdf_obj *array, unsigned idx, pdf_obj *object);
+extern pdf_obj *pdf_get_array (pdf_obj *array, long idx);
+extern unsigned pdf_array_length (pdf_obj *array);
+
+extern void pdf_unshift_array (pdf_obj *array, pdf_obj *object);
+extern pdf_obj *pdf_shift_array (pdf_obj *array);
+extern pdf_obj *pdf_pop_array (pdf_obj *array);
+
+extern pdf_obj *pdf_new_dict (void);
+extern void pdf_remove_dict (pdf_obj *dict, const char *key);
+extern void pdf_merge_dict (pdf_obj *dict1, pdf_obj *dict2);
+extern pdf_obj *pdf_lookup_dict (pdf_obj *dict, const char *key);
+extern pdf_obj *pdf_dict_keys (pdf_obj *dict);
+
+/* pdf_add_dict() want pdf_obj as key, however, key must always be name
+ * object and pdf_lookup_dict() and pdf_remove_dict() uses const char as
+ * key. This strange difference seems come from pdfdoc that first allocate
+ * name objects frequently used (maybe 1000 times) such as /Type and does
+ * pdf_link_obj() it rather than allocate/free-ing them each time. But I
+ * already removed that.
+ */
+extern void pdf_add_dict (pdf_obj *dict, pdf_obj *key, pdf_obj *value);
+extern void pdf_put_dict (pdf_obj *dict, const char *key, pdf_obj *value);
+
+/* Apply proc(key, value, pdata) for each key-value pairs in dict, stop if proc()
+ * returned non-zero value (and that value is returned). PDF object is passed for
+ * key to allow modification (fix) of key.
+ */
+extern int pdf_foreach_dict (pdf_obj *dict,
+ int (*proc) (pdf_obj *, pdf_obj *, void *),
+ void *pdata);
+
+extern pdf_obj *pdf_new_stream (int flags);
+extern void pdf_add_stream (pdf_obj *stream,
+ const void *stream_data_ptr,
+ long stream_data_len);
+extern pdf_obj *pdf_stream_dict (pdf_obj *stream);
+extern long pdf_stream_length (pdf_obj *stream);
+extern void pdf_stream_set_flags (pdf_obj *stream, int flags);
+extern int pdf_stream_get_flags (pdf_obj *stream);
+extern const void *pdf_stream_dataptr (pdf_obj *stream);
+
+#if 0
+extern int pdf_stream_pop_filter (pdf_obj *stream);
+#endif
+
+/* Compare label of two indirect reference object.
+ */
+extern int pdf_compare_reference (pdf_obj *ref1, pdf_obj *ref2);
+
+/* The following routines are not appropriate for pdfobj.
+ */
+
+extern void pdf_set_compression (int level);
+
+extern void pdf_set_info (pdf_obj *obj);
+extern void pdf_set_root (pdf_obj *obj);
+extern void pdf_set_encrypt (pdf_obj *obj);
+
+extern int check_for_pdf (FILE *file);
+extern pdf_obj *pdf_open (FILE *file);
+extern void pdf_close (void);
+
+extern pdf_obj *pdf_deref_obj (pdf_obj *object);
+extern pdf_obj *pdf_import_object (pdf_obj *object);
+
+extern int pdfobj_escape_str (char *buffer, int size, const unsigned char *s, int len);
+
+extern pdf_obj *pdf_new_ref (unsigned long label, int generation);
+extern void pdf_copy_object (pdf_obj *dst, pdf_obj *src);
+
+#endif /* _PDFOBJ_H_ */