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New member names to specify type of value.

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Michael R Sweet 2021-10-10 22:40:42 -04:00
parent 61a7964d90
commit 3de55421b5
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2 changed files with 54 additions and 53 deletions
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99
pdfio-file.c
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@ -123,7 +123,7 @@ pdfioFileClose(pdfio_file_t *pdf) // I - PDF file
{ {
ret = false; ret = false;
if (pdfioObjClose(pdf->info)) if (pdfioObjClose(pdf->info_obj))
if (write_pages(pdf)) if (write_pages(pdf))
if (write_catalog(pdf)) if (write_catalog(pdf))
if (write_trailer(pdf)) if (write_trailer(pdf))
@ -278,7 +278,7 @@ pdfioFileCreate(
pdfioDictSetName(dict, "Type", "Pages"); pdfioDictSetName(dict, "Type", "Pages");
if ((pdf->pages_root = pdfioFileCreateObj(pdf, dict)) == NULL) if ((pdf->pages_obj = pdfioFileCreateObj(pdf, dict)) == NULL)
{ {
pdfioFileClose(pdf); pdfioFileClose(pdf);
unlink(filename); unlink(filename);
@ -296,7 +296,7 @@ pdfioFileCreate(
pdfioDictSetDate(info_dict, "CreationDate", time(NULL)); pdfioDictSetDate(info_dict, "CreationDate", time(NULL));
pdfioDictSetString(info_dict, "Producer", "pdfio/" PDFIO_VERSION); pdfioDictSetString(info_dict, "Producer", "pdfio/" PDFIO_VERSION);
if ((pdf->info = pdfioFileCreateObj(pdf, info_dict)) == NULL) if ((pdf->info_obj = pdfioFileCreateObj(pdf, info_dict)) == NULL)
{ {
pdfioFileClose(pdf); pdfioFileClose(pdf);
unlink(filename); unlink(filename);
@ -536,7 +536,7 @@ pdfioFileCreateOutput(
pdfioDictSetName(dict, "Type", "Pages"); pdfioDictSetName(dict, "Type", "Pages");
if ((pdf->pages_root = pdfioFileCreateObj(pdf, dict)) == NULL) if ((pdf->pages_obj = pdfioFileCreateObj(pdf, dict)) == NULL)
{ {
pdfioFileClose(pdf); pdfioFileClose(pdf);
return (NULL); return (NULL);
@ -552,7 +552,7 @@ pdfioFileCreateOutput(
pdfioDictSetDate(info_dict, "CreationDate", time(NULL)); pdfioDictSetDate(info_dict, "CreationDate", time(NULL));
pdfioDictSetString(info_dict, "Producer", "pdfio/" PDFIO_VERSION); pdfioDictSetString(info_dict, "Producer", "pdfio/" PDFIO_VERSION);
if ((pdf->info = pdfioFileCreateObj(pdf, info_dict)) == NULL) if ((pdf->info_obj = pdfioFileCreateObj(pdf, info_dict)) == NULL)
{ {
pdfioFileClose(pdf); pdfioFileClose(pdf);
return (NULL); return (NULL);
@ -595,7 +595,7 @@ pdfioFileCreatePage(pdfio_file_t *pdf, // I - PDF file
if (!_pdfioDictGetValue(dict, "MediaBox")) if (!_pdfioDictGetValue(dict, "MediaBox"))
pdfioDictSetRect(dict, "MediaBox", &pdf->media_box); pdfioDictSetRect(dict, "MediaBox", &pdf->media_box);
pdfioDictSetObj(dict, "Parent", pdf->pages_root); pdfioDictSetObj(dict, "Parent", pdf->pages_obj);
if (!_pdfioDictGetValue(dict, "Resources")) if (!_pdfioDictGetValue(dict, "Resources"))
pdfioDictSetDict(dict, "Resources", pdfioDictCreate(pdf)); pdfioDictSetDict(dict, "Resources", pdfioDictCreate(pdf));
@ -701,7 +701,7 @@ pdfioFileFindObj(
const char * // O - Author or `NULL` for none const char * // O - Author or `NULL` for none
pdfioFileGetAuthor(pdfio_file_t *pdf) // I - PDF file pdfioFileGetAuthor(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Author") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Author") : NULL);
} }
@ -713,7 +713,7 @@ time_t // O - Creation date or `0` for none
pdfioFileGetCreationDate( pdfioFileGetCreationDate(
pdfio_file_t *pdf) // I - PDF file pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetDate(pdf->info->value.value.dict, "CreationDate") : 0); return (pdf && pdf->info_obj ? pdfioDictGetDate(pdf->info_obj->value.value.dict, "CreationDate") : 0);
} }
@ -724,7 +724,7 @@ pdfioFileGetCreationDate(
const char * // O - Creator string or `NULL` for none const char * // O - Creator string or `NULL` for none
pdfioFileGetCreator(pdfio_file_t *pdf) // I - PDF file pdfioFileGetCreator(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Creator") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Creator") : NULL);
} }
@ -735,7 +735,7 @@ pdfioFileGetCreator(pdfio_file_t *pdf) // I - PDF file
pdfio_array_t * // O - Array with binary strings pdfio_array_t * // O - Array with binary strings
pdfioFileGetID(pdfio_file_t *pdf) // I - PDF file pdfioFileGetID(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetArray(pdf->trailer, "ID") : NULL); return (pdf ? pdf->id_array : NULL);
} }
@ -746,7 +746,7 @@ pdfioFileGetID(pdfio_file_t *pdf) // I - PDF file
const char * // O - Keywords string or `NULL` for none const char * // O - Keywords string or `NULL` for none
pdfioFileGetKeywords(pdfio_file_t *pdf) // I - PDF file pdfioFileGetKeywords(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Keywords") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Keywords") : NULL);
} }
@ -821,7 +821,7 @@ pdfioFileGetPage(pdfio_file_t *pdf, // I - PDF file
const char * // O - Producer string or `NULL` for none const char * // O - Producer string or `NULL` for none
pdfioFileGetProducer(pdfio_file_t *pdf) // I - PDF file pdfioFileGetProducer(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Producer") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Producer") : NULL);
} }
@ -832,7 +832,7 @@ pdfioFileGetProducer(pdfio_file_t *pdf) // I - PDF file
const char * // O - Subject or `NULL` for none const char * // O - Subject or `NULL` for none
pdfioFileGetSubject(pdfio_file_t *pdf) // I - PDF file pdfioFileGetSubject(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Subject") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Subject") : NULL);
} }
@ -843,7 +843,7 @@ pdfioFileGetSubject(pdfio_file_t *pdf) // I - PDF file
const char * // O - Title or `NULL` for none const char * // O - Title or `NULL` for none
pdfioFileGetTitle(pdfio_file_t *pdf) // I - PDF file pdfioFileGetTitle(pdfio_file_t *pdf) // I - PDF file
{ {
return (pdf && pdf->info ? pdfioDictGetString(pdf->info->value.value.dict, "Title") : NULL); return (pdf && pdf->info_obj ? pdfioDictGetString(pdf->info_obj->value.value.dict, "Title") : NULL);
} }
@ -988,8 +988,8 @@ void
pdfioFileSetAuthor(pdfio_file_t *pdf, // I - PDF file pdfioFileSetAuthor(pdfio_file_t *pdf, // I - PDF file
const char *value) // I - Value const char *value) // I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetString(pdf->info->value.value.dict, "Author", pdfioStringCreate(pdf, value)); pdfioDictSetString(pdf->info_obj->value.value.dict, "Author", pdfioStringCreate(pdf, value));
} }
@ -1002,8 +1002,8 @@ pdfioFileSetCreationDate(
pdfio_file_t *pdf, // I - PDF file pdfio_file_t *pdf, // I - PDF file
time_t value) // I - Value time_t value) // I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetDate(pdf->info->value.value.dict, "CreationDate", value); pdfioDictSetDate(pdf->info_obj->value.value.dict, "CreationDate", value);
} }
@ -1015,8 +1015,8 @@ void
pdfioFileSetCreator(pdfio_file_t *pdf, // I - PDF file pdfioFileSetCreator(pdfio_file_t *pdf, // I - PDF file
const char *value)// I - Value const char *value)// I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetString(pdf->info->value.value.dict, "Creator", pdfioStringCreate(pdf, value)); pdfioDictSetString(pdf->info_obj->value.value.dict, "Creator", pdfioStringCreate(pdf, value));
} }
@ -1029,8 +1029,8 @@ pdfioFileSetKeywords(
pdfio_file_t *pdf, // I - PDF file pdfio_file_t *pdf, // I - PDF file
const char *value) // I - Value const char *value) // I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetString(pdf->info->value.value.dict, "Keywords", pdfioStringCreate(pdf, value)); pdfioDictSetString(pdf->info_obj->value.value.dict, "Keywords", pdfioStringCreate(pdf, value));
} }
@ -1248,8 +1248,8 @@ pdfioFileSetSubject(
pdfio_file_t *pdf, // I - PDF file pdfio_file_t *pdf, // I - PDF file
const char *value) // I - Value const char *value) // I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetString(pdf->info->value.value.dict, "Subject", pdfioStringCreate(pdf, value)); pdfioDictSetString(pdf->info_obj->value.value.dict, "Subject", pdfioStringCreate(pdf, value));
} }
@ -1261,8 +1261,8 @@ void
pdfioFileSetTitle(pdfio_file_t *pdf, // I - PDF file pdfioFileSetTitle(pdfio_file_t *pdf, // I - PDF file
const char *value) // I - Value const char *value) // I - Value
{ {
if (pdf && pdf->info) if (pdf && pdf->info_obj)
pdfioDictSetString(pdf->info->value.value.dict, "Title", pdfioStringCreate(pdf, value)); pdfioDictSetString(pdf->info_obj->value.value.dict, "Title", pdfioStringCreate(pdf, value));
} }
@ -1620,8 +1620,9 @@ load_xref(pdfio_file_t *pdf, // I - PDF file
_pdfioFileError(pdf, "Cross-reference stream does not have a dictionary."); _pdfioFileError(pdf, "Cross-reference stream does not have a dictionary.");
return (false); return (false);
} }
else if (_pdfioDictGetValue(pdf->trailer, "Encrypt")) else if (_pdfioDictGetValue(pdf->trailer_dict, "Encrypt"))
{ {
// TODO: Fix me
// Encryption not yet supported... // Encryption not yet supported...
_pdfioFileError(pdf, "Sorry, PDFio currently does not support encrypted PDF files."); _pdfioFileError(pdf, "Sorry, PDFio currently does not support encrypted PDF files.");
return (false); return (false);
@ -1867,7 +1868,7 @@ load_xref(pdfio_file_t *pdf, // I - PDF file
_pdfioFileError(pdf, "Trailer is not a dictionary."); _pdfioFileError(pdf, "Trailer is not a dictionary.");
return (false); return (false);
} }
else if (_pdfioDictGetValue(pdf->trailer, "Encrypt")) else if (_pdfioDictGetValue(pdf->trailer_dict, "Encrypt"))
{ {
// Encryption not yet supported... // Encryption not yet supported...
_pdfioFileError(pdf, "Sorry, PDFio currently does not support encrypted PDF files."); _pdfioFileError(pdf, "Sorry, PDFio currently does not support encrypted PDF files.");
@ -1887,11 +1888,11 @@ load_xref(pdfio_file_t *pdf, // I - PDF file
PDFIO_DEBUG_VALUE(&trailer); PDFIO_DEBUG_VALUE(&trailer);
PDFIO_DEBUG("\n"); PDFIO_DEBUG("\n");
if (!pdf->trailer) if (!pdf->trailer_dict)
{ {
// Save the trailer dictionary and grab the root (catalog) and info // Save the trailer dictionary and grab the root (catalog) and info
// objects... // objects...
pdf->trailer = trailer.value.dict; pdf->trailer_dict = trailer.value.dict;
} }
if ((xref_offset = (off_t)pdfioDictGetNumber(trailer.value.dict, "Prev")) <= 0) if ((xref_offset = (off_t)pdfioDictGetNumber(trailer.value.dict, "Prev")) <= 0)
@ -1900,19 +1901,19 @@ load_xref(pdfio_file_t *pdf, // I - PDF file
// Once we have all of the xref tables loaded, get the important objects and // Once we have all of the xref tables loaded, get the important objects and
// build the pages array... // build the pages array...
if ((pdf->root = pdfioDictGetObj(pdf->trailer, "Root")) == NULL) if ((pdf->root_obj = pdfioDictGetObj(pdf->trailer_dict, "Root")) == NULL)
{ {
_pdfioFileError(pdf, "Missing Root object."); _pdfioFileError(pdf, "Missing Root object.");
return (false); return (false);
} }
PDFIO_DEBUG("load_xref: Root=%p(%lu)\n", pdf->root, (unsigned long)pdf->root->number); PDFIO_DEBUG("load_xref: Root=%p(%lu)\n", pdf->root_obj, (unsigned long)pdf->root_obj->number);
pdf->info = pdfioDictGetObj(pdf->trailer, "Info"); pdf->info_obj = pdfioDictGetObj(pdf->trailer_dict, "Info");
pdf->encrypt_obj = pdfioDictGetObj(pdf->trailer, "Encrypt"); pdf->encrypt_obj = pdfioDictGetObj(pdf->trailer_dict, "Encrypt");
pdf->id_array = pdfioDictGetArray(pdf->trailer, "ID"); pdf->id_array = pdfioDictGetArray(pdf->trailer_dict, "ID");
return (load_pages(pdf, pdfioDictGetObj(pdfioObjGetDict(pdf->root), "Pages"))); return (load_pages(pdf, pdfioDictGetObj(pdfioObjGetDict(pdf->root_obj), "Pages")));
} }
@ -1930,13 +1931,13 @@ write_catalog(pdfio_file_t *pdf) // I - PDF file
return (false); return (false);
pdfioDictSetName(dict, "Type", "Catalog"); pdfioDictSetName(dict, "Type", "Catalog");
pdfioDictSetObj(dict, "Pages", pdf->pages_root); pdfioDictSetObj(dict, "Pages", pdf->pages_obj);
// TODO: Add support for all of the root object dictionary keys // TODO: Add support for all of the root object dictionary keys
if ((pdf->root = pdfioFileCreateObj(pdf, dict)) == NULL) if ((pdf->root_obj = pdfioFileCreateObj(pdf, dict)) == NULL)
return (false); return (false);
else else
return (pdfioObjClose(pdf->root)); return (pdfioObjClose(pdf->root_obj));
} }
@ -1958,11 +1959,11 @@ write_pages(pdfio_file_t *pdf) // I - PDF file
for (i = 0; i < pdf->num_pages; i ++) for (i = 0; i < pdf->num_pages; i ++)
pdfioArrayAppendObj(kids, pdf->pages[i]); pdfioArrayAppendObj(kids, pdf->pages[i]);
pdfioDictSetNumber(pdf->pages_root->value.value.dict, "Count", pdf->num_pages); pdfioDictSetNumber(pdf->pages_obj->value.value.dict, "Count", pdf->num_pages);
pdfioDictSetArray(pdf->pages_root->value.value.dict, "Kids", kids); pdfioDictSetArray(pdf->pages_obj->value.value.dict, "Kids", kids);
// Write the Pages object... // Write the Pages object...
return (pdfioObjClose(pdf->pages_root)); return (pdfioObjClose(pdf->pages_obj));
} }
@ -2019,21 +2020,21 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
pdfioArrayAppendBinary(pdf->id_array, id_values[1], sizeof(id_values[1])); pdfioArrayAppendBinary(pdf->id_array, id_values[1], sizeof(id_values[1]));
} }
if ((pdf->trailer = pdfioDictCreate(pdf)) == NULL) if ((pdf->trailer_dict = pdfioDictCreate(pdf)) == NULL)
{ {
ret = false; ret = false;
goto done; goto done;
} }
if (pdf->encrypt_obj) if (pdf->encrypt_obj)
pdfioDictSetObj(pdf->trailer, "Encrypt", pdf->encrypt_obj); pdfioDictSetObj(pdf->trailer_dict, "Encrypt", pdf->encrypt_obj);
if (pdf->id_array) if (pdf->id_array)
pdfioDictSetArray(pdf->trailer, "ID", pdf->id_array); pdfioDictSetArray(pdf->trailer_dict, "ID", pdf->id_array);
pdfioDictSetObj(pdf->trailer, "Info", pdf->info); pdfioDictSetObj(pdf->trailer_dict, "Info", pdf->info_obj);
pdfioDictSetObj(pdf->trailer, "Root", pdf->root); pdfioDictSetObj(pdf->trailer_dict, "Root", pdf->root_obj);
pdfioDictSetNumber(pdf->trailer, "Size", pdf->num_objs + 1); pdfioDictSetNumber(pdf->trailer_dict, "Size", pdf->num_objs + 1);
if (!_pdfioDictWrite(pdf->trailer, NULL)) if (!_pdfioDictWrite(pdf->trailer_dict, NULL))
{ {
_pdfioFileError(pdf, "Unable to write trailer."); _pdfioFileError(pdf, "Unable to write trailer.");
ret = false; ret = false;

8
pdfio-private.h
View File

@ -267,10 +267,10 @@ struct _pdfio_file_s // PDF file structure
*bufptr, // Pointer into buffer *bufptr, // Pointer into buffer
*bufend; // End of buffer *bufend; // End of buffer
off_t bufpos; // Position in file for start of buffer off_t bufpos; // Position in file for start of buffer
pdfio_dict_t *trailer; // Trailer dictionary pdfio_dict_t *trailer_dict; // Trailer dictionary
pdfio_obj_t *root; // Root object/dictionary pdfio_obj_t *root_obj; // Root object/dictionary
pdfio_obj_t *info; // Information object pdfio_obj_t *info_obj; // Information object
pdfio_obj_t *pages_root; // Root pages object pdfio_obj_t *pages_obj; // Root pages object
pdfio_obj_t *encrypt_obj; // De/Encryption object/dictionary pdfio_obj_t *encrypt_obj; // De/Encryption object/dictionary
pdfio_obj_t *cp1252_obj, // CP1252 font encoding object pdfio_obj_t *cp1252_obj, // CP1252 font encoding object
*unicode_obj; // Unicode font encoding object *unicode_obj; // Unicode font encoding object