[gthumb: 16/20] read the orientation tag as an integer instead of a string

[Paolo Bacchilega <paobac src gnome org>]

commit 57a2ddfa3a81bd179dc4ecbb4aab5f4899947a84
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Tue Mar 30 17:17:09 2010 +0200

    read the orientation tag as an integer instead of a string

 extensions/exiv2_tools/exiv2-utils.cpp |   13 ++++++-------
 1 files changed, 6 insertions(+), 7 deletions(-)
---
diff --git a/extensions/exiv2_tools/exiv2-utils.cpp b/extensions/exiv2_tools/exiv2-utils.cpp
index dfc6cfc..9510b4f 100644
--- a/extensions/exiv2_tools/exiv2-utils.cpp
+++ b/extensions/exiv2_tools/exiv2-utils.cpp
@@ -860,13 +860,11 @@ exiv2_generate_thumbnail (const char *uri,
 			if (thumb.pData_ != NULL) {
 				Exiv2::ExifData &ed = image->exifData();
 
-				const char *orientation = ed["Exif.Image.Orientation"].toString().c_str();
+				long orientation = ed["Exif.Image.Orientation"].toLong();
 				long image_width = ed["Exif.Photo.PixelXDimension"].toLong();
 				long image_height = ed["Exif.Photo.PixelYDimension"].toLong();
 
-				if (((orientation == NULL) || (strcmp (orientation, "") == 0) || (strcmp (orientation, "1") == 0))
-				    && (image_width > 0) && (image_height > 0))
-				{
+				if ((orientation == 1) && (image_width > 0) && (image_height > 0)) {
 					GInputStream *stream = g_memory_input_stream_new_from_data (thumb.pData_, thumb.size_, NULL);
 					pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, NULL);
 
@@ -897,9 +895,10 @@ exiv2_generate_thumbnail (const char *uri,
 							/* Set the orientation option to correctly rotate the thumbnail
 							 * in gnome_desktop_thumbnail_factory_generate_thumbnail() */
 
-							const char *orientation = ed["Exif.Image.Orientation"].toString().c_str();
-							if ((orientation != NULL) && (strcmp (orientation, "") != 0))
-								gdk_pixbuf_set_option (pixbuf, "orientation", orientation);
+							long  orientation = ed["Exif.Image.Orientation"].toLong();
+							char *orientation_s = g_strdup_printf ("%ld", orientation);
+							gdk_pixbuf_set_option (pixbuf, "orientation", orientation_s);
+							g_free (orientation_s);
 						}
 					}