gnome-commander r1954 - trunk/src/tags
- From: epiotr svn gnome org
- To: svn-commits-list gnome org
- Subject: gnome-commander r1954 - trunk/src/tags
- Date: Fri, 8 Aug 2008 23:38:42 +0000 (UTC)
Author: epiotr
Date: Fri Aug 8 23:38:42 2008
New Revision: 1954
URL: http://svn.gnome.org/viewvc/gnome-commander?rev=1954&view=rev
Log:
Support for PDF metatags
Added:
trunk/src/tags/gnome-cmd-tags-poppler.cc
trunk/src/tags/gnome-cmd-tags-poppler.h
Added: trunk/src/tags/gnome-cmd-tags-poppler.cc
==============================================================================
--- (empty file)
+++ trunk/src/tags/gnome-cmd-tags-poppler.cc Fri Aug 8 23:38:42 2008
@@ -0,0 +1,401 @@
+/*
+ GNOME Commander - A GNOME based file manager
+ Copyright (C) 2001-2006 Marcus Bjurman
+
+ 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "gnome-cmd-includes.h"
+#include "gnome-cmd-tags.h"
+#include "utils.h"
+#include "dict.h"
+
+#ifdef HAVE_PDF
+#include <regex.h>
+#include <poppler/PDFDoc.h>
+#include <poppler/PDFDocEncoding.h>
+#include <poppler/Error.h>
+#endif
+
+using namespace std;
+
+
+#ifdef HAVE_PDF
+static regex_t rxDate;
+static gboolean rxDate_OK;
+
+static void noErrorReporting(int pos, char *msg, va_list args)
+{
+}
+#endif
+
+
+void gcmd_tags_poppler_init()
+{
+#ifdef HAVE_PDF
+ rxDate_OK = regcomp (&rxDate, "^(D:)?([12][019][0-9][0-9]([01][0-9]([0-3][0-9]([012][0-9]([0-5][0-9]([0-5][0-9])?)?)?)?)?)", REG_EXTENDED)==0;
+
+ setErrorFunction(noErrorReporting);
+#endif
+}
+
+
+void gcmd_tags_poppler_shutdown()
+{
+#ifdef HAVE_PDF
+ if (rxDate_OK)
+ regfree(&rxDate);
+#endif
+}
+
+
+#ifdef HAVE_PDF
+static gchar *convert_to_utf8(GooString *s)
+{
+ guint len = s->getLength();
+
+ if (s->hasUnicodeMarker())
+ return g_convert (s->getCString()+2, len-2, "UTF-8", "UTF-16BE", NULL, NULL, NULL);
+ else
+ {
+ static vector<gunichar> buff(64);
+
+ if (len>buff.size())
+ buff.resize(len);
+
+ gunichar *ucs4 = &buff[0];
+
+ for (guint i=0; i<len; ++i, ++ucs4)
+ *ucs4 = pdfDocEncoding[(unsigned char) s->getChar(i)];
+
+ return g_ucs4_to_utf8 (&buff[0], len, NULL, NULL, NULL);
+ }
+}
+
+
+inline void add(GnomeCmdFileMetadata &metadata, const GnomeCmdTag tag, GooString *s)
+{
+ if (!s) return;
+
+ char *value = convert_to_utf8(s);
+
+ metadata.add(tag, value);
+
+ g_free (value);
+}
+
+
+inline void add(GnomeCmdFileMetadata &metadata, const GnomeCmdTag tag1, const GnomeCmdTag tag2, GooString *s)
+{
+ if (!s) return;
+
+ char *value = convert_to_utf8(s);
+
+ metadata.add(tag1, value);
+ metadata.add(tag2, value);
+
+ g_free (value);
+}
+
+
+static void add_date(GnomeCmdFileMetadata &metadata, GnomeCmdTag tag, GooString *date)
+{
+ // PDF date format: D:YYYYMMDDHHmmSSOHH'mm'
+
+ gchar *s = convert_to_utf8(date);
+
+ if (!s) return;
+
+ regmatch_t m[3];
+
+ if (rxDate_OK && regexec(&rxDate, s, G_N_ELEMENTS(m), m, 0) == 0)
+ {
+ static char buff[32];
+
+ strcpy(buff, "YYYY-01-01 00:00:00");
+
+ gchar *src = s + m[2].rm_so;
+
+ switch (m[2].rm_eo-m[2].rm_so)
+ {
+ case 14: // SS
+ memcpy(buff+17,src+12,2);
+
+ case 12: // mm
+ memcpy(buff+14,src+10,2);
+
+ case 10: // HH
+ memcpy(buff+11,src+8,2);
+
+ case 8: // DD
+ memcpy(buff+8,src+6,2);
+
+ case 6: // MM
+ memcpy(buff+5,src+4,2);
+
+ case 4: // YYYY
+ memcpy(buff,src,4);
+ break;
+
+ default:
+ break;
+ }
+
+ metadata.add(tag, buff);
+ }
+
+ g_free (s);
+}
+
+
+#if GTK_CHECK_VERSION (2, 12, 0)
+inline gdouble get_tolerance (gdouble size)
+{
+ if (size < 150.0f)
+ return 1.5f;
+
+ return size >= 150.0f && size <= 600.0f ? 2.0f : 3.0f;
+}
+#else /* ! GTK 2.12.0 */
+struct regular_paper_size
+{
+ double width;
+ double height;
+ double width_tolerance;
+ double height_tolerance;
+ const char *description;
+}
+const regular_paper_sizes[] =
+{
+ // ISO 216 paper sizes, all values are in mm. Source: http://en.wikipedia.org/wiki/Paper_size
+ { 210.0f, 297.0f, 2.0f, 2.0f, "A4" },
+ { 841.0f, 1189.0f, 3.0f, 3.0f, "A0" },
+ { 594.0f, 841.0f, 2.0f, 3.0f, "A1" },
+ { 420.0f, 594.0f, 2.0f, 2.0f, "A2" },
+ { 297.0f, 420.0f, 2.0f, 2.0f, "A3" },
+ { 148.0f, 210.0f, 1.5f, 2.0f, "A5" },
+ { 105.0f, 148.0f, 1.5f, 1.5f, "A6" },
+ { 74.0f, 105.0f, 1.5f, 1.5f, "A7" },
+ { 52.0f, 74.0f, 1.5f, 1.5f, "A8" },
+ { 37.0f, 52.0f, 1.5f, 1.5f, "A9" },
+ { 26.0f, 37.0f, 1.5f, 1.5f, "A10" },
+ { 1000.0f, 1414.0f, 3.0f, 3.0f, "B0" },
+ { 707.0f, 1000.0f, 3.0f, 3.0f, "B1" },
+ { 500.0f, 707.0f, 2.0f, 3.0f, "B2" },
+ { 353.0f, 500.0f, 2.0f, 2.0f, "B3" },
+ { 250.0f, 353.0f, 2.0f, 2.0f, "B4" },
+ { 176.0f, 250.0f, 2.0f, 2.0f, "B5" },
+ { 125.0f, 176.0f, 1.5f, 2.0f, "B6" },
+ { 88.0f, 125.0f, 1.5f, 1.5f, "B7" },
+ { 62.0f, 88.0f, 1.5f, 1.5f, "B8" },
+ { 44.0f, 62.0f, 1.5f, 1.5f, "B9" },
+ { 31.0f, 44.0f, 1.5f, 1.5f, "B10" },
+ { 917.0f, 1297.0f, 3.0f, 3.0f, "C0" },
+ { 648.0f, 917.0f, 3.0f, 3.0f, "C1" },
+ { 458.0f, 648.0f, 2.0f, 3.0f, "C2" },
+ { 324.0f, 458.0f, 2.0f, 2.0f, "C3" },
+ { 229.0f, 324.0f, 2.0f, 2.0f, "C4" },
+ { 162.0f, 229.0f, 2.0f, 2.0f, "C5" },
+ { 114.0f, 162.0f, 1.5f, 2.0f, "C6" },
+ { 81.0f, 114.0f, 1.5f, 1.5f, "C7" },
+ { 57.0f, 81.0f, 1.5f, 1.5f, "C8" },
+ { 40.0f, 57.0f, 1.5f, 1.5f, "C9" },
+ { 28.0f, 40.0f, 1.5f, 1.5f, "C10" },
+
+ // US paper sizes
+ { 279.0f, 216.0f, 3.0f, 3.0f, "Letter" },
+ { 356.0f, 216.0f, 3.0f, 3.0f, "Legal" },
+ { 432.0f, 279.0f, 3.0f, 3.0f, "Ledger" }
+};
+#endif
+
+
+inline gchar *paper_name (gdouble doc_width, double doc_height)
+{
+ gchar *s = NULL;
+
+#if GTK_CHECK_VERSION (2, 12, 0)
+ GList *paper_sizes = gtk_paper_size_get_paper_sizes (FALSE);
+
+ for (GList *l = paper_sizes; l && l->data; l = g_list_next (l))
+ {
+ GtkPaperSize *size = (GtkPaperSize *) l->data;
+
+ gdouble paper_width = gtk_paper_size_get_width (size, GTK_UNIT_MM);
+ gdouble paper_height = gtk_paper_size_get_height (size, GTK_UNIT_MM);
+
+ gdouble width_tolerance = get_tolerance (paper_width);
+ gdouble height_tolerance = get_tolerance (paper_height);
+
+ if (ABS (doc_height - paper_height) <= height_tolerance &&
+ ABS (doc_width - paper_width) <= width_tolerance)
+ {
+ // Note to translators: first placeholder is the paper name (eg. * A4)
+ s = g_strdup_printf (_("%s, Portrait"), gtk_paper_size_get_display_name (size));
+ break;
+ }
+ else
+ if (ABS (doc_width - paper_height) <= height_tolerance &&
+ ABS (doc_height - paper_width) <= width_tolerance)
+ {
+ // Note to translators: first placeholder is the paper name (eg. * A4)
+ s = g_strdup_printf (_("%s, Landscape"), gtk_paper_size_get_display_name (size));
+ break;
+ }
+ }
+
+ g_list_foreach (paper_sizes, (GFunc) gtk_paper_size_free, NULL);
+ g_list_free (paper_sizes);
+
+#else /* ! GTK 2.12.0 */
+
+ for (int i=G_N_ELEMENTS (regular_paper_sizes)-1; i >= 0; --i)
+ {
+ const regular_paper_size *size = ®ular_paper_sizes[i];
+
+ if (ABS(doc_height - size->height) <= size->height_tolerance &&
+ ABS(doc_width - size->width) <= size->width_tolerance)
+ // Note to translators: first placeholder is the paper name (eg. * A4)
+ return g_strdup_printf (_("%s, Portrait"), size->description);
+ else
+ if (ABS(doc_width - size->height) <= size->height_tolerance &&
+ ABS(doc_height - size->width) <= size->width_tolerance)
+ // Note to translators: first placeholder is the paper name (eg. * A4)
+ return g_strdup_printf (_("%s, Landscape"), size->description);
+ }
+#endif
+
+ return s;
+}
+#endif
+
+
+void gcmd_tags_poppler_load_metadata(GnomeCmdFile *finfo)
+{
+ g_return_if_fail (finfo != NULL);
+ g_return_if_fail (finfo->info != NULL);
+
+#ifdef HAVE_PDF
+ if (finfo->metadata && finfo->metadata->is_accessed(TAG_PDF)) return;
+
+ if (!finfo->metadata)
+ finfo->metadata = new GnomeCmdFileMetadata;
+
+ if (!finfo->metadata) return;
+
+ finfo->metadata->mark_as_accessed(TAG_PDF);
+ finfo->metadata->mark_as_accessed(TAG_DOC);
+
+ if (!gnome_cmd_file_is_local (finfo)) return;
+
+ gchar *fname = gnome_cmd_file_get_real_path (finfo);
+
+ DEBUG('t', "Loading PDF metadata for '%s'\n", fname);
+
+ PDFDoc doc(new GooString(fname));
+
+ g_free (fname);
+
+ if (!doc.isOk())
+ return;
+
+ finfo->metadata->addf(TAG_PDF_VERSION, "%.1f", doc.getPDFVersion());
+ finfo->metadata->addf(TAG_DOC_PAGECOUNT, "%i", doc.getNumPages());
+ finfo->metadata->addf(TAG_PDF_OPTIMIZED, "%u", doc.isLinearized());
+
+ finfo->metadata->addf(TAG_DOC_SECURITY, "%u", doc.isEncrypted()); // FIXME: 1 -> "Password protected", 0 -> "No protection" ???
+
+ finfo->metadata->addf(TAG_PDF_PRINTING, "%u", doc.okToPrint());
+ finfo->metadata->addf(TAG_PDF_HIRESPRINTING, "%u", doc.okToPrintHighRes());
+ finfo->metadata->addf(TAG_PDF_MODIFYING, "%u", doc.okToChange());
+ finfo->metadata->addf(TAG_PDF_COPYING, "%u", doc.okToCopy());
+ finfo->metadata->addf(TAG_PDF_COMMENTING, "%u", doc.okToAddNotes());
+ finfo->metadata->addf(TAG_PDF_FORMFILLING, "%u", doc.okToFillForm());
+ finfo->metadata->addf(TAG_PDF_ACCESSIBILITYSUPPORT, "%u", doc.okToAccessibility());
+ finfo->metadata->addf(TAG_PDF_DOCASSEMBLY, "%u", doc.okToAssemble());
+
+ if (doc.getPDFVersion()>0)
+ {
+ double width = doc.getPageCropWidth(1)/72.0f*25.4f;
+ double height = doc.getPageCropHeight(1)/72.0f*25.4f;
+
+ finfo->metadata->addf(TAG_PDF_PAGEWIDTH, "%.0f", width);
+ finfo->metadata->addf(TAG_PDF_PAGEHEIGHT, "%.0f", height);
+
+ gchar *paper_size = paper_name (width, height);
+
+ finfo->metadata->add(TAG_PDF_PAGESIZE, paper_size);
+
+ g_free (paper_size);
+ }
+
+ Catalog *catalog = doc.getCatalog();
+
+ if (catalog)
+ finfo->metadata->addf(TAG_PDF_EMBEDDEDFILES, "%i", catalog->numEmbeddedFiles());
+
+ // GooString *xmp = doc.readMetadata(); // FIXME: future access to XMP metadata
+
+ // if (xmp)
+ // {
+ // TRACE(xmp->getCString());
+ // }
+
+ // delete xmp;
+
+ Object info;
+
+ doc.getDocInfo(&info);
+
+ if (info.isDict())
+ {
+ Object obj;
+ Dict *dict = info.getDict();
+
+ if (dict->lookup("Title", &obj)->isString())
+ add(*finfo->metadata, TAG_DOC_TITLE, obj.getString());
+
+ if (dict->lookup("Subject", &obj)->isString())
+ add(*finfo->metadata, TAG_DOC_SUBJECT, obj.getString());
+
+ if (dict->lookup("Keywords", &obj)->isString())
+ add(*finfo->metadata, TAG_DOC_KEYWORDS, TAG_FILE_KEYWORDS, obj.getString()); // FIXME: split keywords here
+
+ if (dict->lookup("Author", &obj)->isString())
+ add(*finfo->metadata, TAG_DOC_AUTHOR, TAG_FILE_PUBLISHER, obj.getString());
+
+ if (dict->lookup("Creator", &obj)->isString())
+ add(*finfo->metadata, TAG_PDF_PRODUCER, obj.getString());
+
+ if (dict->lookup("Producer", &obj)->isString())
+ add(*finfo->metadata, TAG_DOC_GENERATOR, obj.getString());
+
+ if (dict->lookup("CreationDate", &obj)->isString())
+ add_date(*finfo->metadata, TAG_DOC_DATECREATED, obj.getString());
+
+ if (dict->lookup("ModDate", &obj)->isString())
+ add_date(*finfo->metadata, TAG_DOC_DATEMODIFIED, obj.getString());
+
+ obj.free();
+ }
+
+ info.free();
+#endif
+}
Added: trunk/src/tags/gnome-cmd-tags-poppler.h
==============================================================================
--- (empty file)
+++ trunk/src/tags/gnome-cmd-tags-poppler.h Fri Aug 8 23:38:42 2008
@@ -0,0 +1,30 @@
+/*
+ GNOME Commander - A GNOME based file manager
+ Copyright (C) 2001-2006 Marcus Bjurman
+
+ 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+#ifndef __GNOME_CMD_TAGS_POPPLER_H__
+#define __GNOME_CMD_TAGS_POPPLER_H__
+
+#include "gnome-cmd-file.h"
+
+void gcmd_tags_poppler_init();
+void gcmd_tags_poppler_shutdown();
+
+void gcmd_tags_poppler_load_metadata(GnomeCmdFile *finfo);
+
+#endif // __GNOME_CMD_TAGS_POPPLER_H__
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
