Wrap ExifData in a EogExifData boxed type

This is for better interaction with bindings

Based on eog commit b88d3713fe45a4bab1bd24ac8ff60551c5c31d49
From Claudio Saavedra <[email protected]>

8 files changed, 48 insertions, 13 deletions

diff --git a/src/eom-exif-util.c b/src/eom-exif-util.c
index fedefcd..7fa0e99 100644
--- a/src/eom-exif-util.c
+++ b/src/eom-exif-util.c
@@ -185,7 +185,7 @@ eom_exif_util_format_date (const gchar *date)
 }
 
 /**
- * eom_exif_util_get_value:
+ * eom_exif_data_get_value:
  * @exif_data: pointer to an <structname>ExifData</structname> struct
  * @tag_id: the requested tag's id. See <filename>exif-tag.h</filename>
  * from the libexif package for possible values (e.g. %EXIF_TAG_EXPOSURE_MODE).
@@ -199,7 +199,7 @@ eom_exif_util_format_date (const gchar *date)
  * Returns: a pointer to @buffer.
  */
 const gchar *
-eom_exif_util_get_value (ExifData *exif_data, gint tag_id, gchar *buffer, guint buf_size)
+eom_exif_data_get_value (EomExifData *exif_data, gint tag_id, gchar *buffer, guint buf_size)
 {
 	ExifEntry *exif_entry;
 	const gchar *exif_value;
@@ -212,3 +212,29 @@ eom_exif_util_get_value (ExifData *exif_data, gint tag_id, gchar *buffer, guint
 
 	return exif_value;
 }
+
+EomExifData *
+eom_exif_data_copy (EomExifData *data)
+{
+	exif_data_ref (data);
+
+	return data;
+}
+
+void
+eom_exif_data_free (EomExifData *data)
+{
+	exif_data_unref (data);
+}
+
+GType
+eom_exif_data_get_type (void)
+{
+	static GType our_type = 0;
+
+	if (our_type == 0)
+		our_type = g_boxed_type_register_static ("EomExifData",
+							(GBoxedCopyFunc) eom_exif_data_copy,
+							(GBoxedFreeFunc) eom_exif_data_free);
+	return our_type;
+}
diff --git a/src/eom-exif-util.h b/src/eom-exif-util.h
index 451924b..5a34be9 100644
--- a/src/eom-exif-util.h
+++ b/src/eom-exif-util.h
@@ -28,13 +28,21 @@
 #define __EOM_EXIF_UTIL_H__
 
 #include <glib.h>
+#include <glib-object.h>
 #include <libexif/exif-data.h>
 
 G_BEGIN_DECLS
 
+typedef ExifData EomExifData;
+
 gchar*       eom_exif_util_format_date           (const gchar *date);
 
-const gchar *eom_exif_util_get_value             (ExifData *exif_data, gint tag_id, gchar *buffer, guint buf_size);
+const gchar *eom_exif_data_get_value             (EomExifData *exif_data, gint tag_id, gchar *buffer, guint buf_size);
+
+GType        eom_exif_data_get_type              (void) G_GNUC_CONST;
+
+EomExifData * eom_exif_data_copy (EomExifData *data);
+void          eom_exif_data_free (EomExifData *data);
 
 G_END_DECLS
 
diff --git a/src/eom-image.c b/src/eom-image.c
index 1b38978..26df136 100644
--- a/src/eom-image.c
+++ b/src/eom-image.c
@@ -1884,11 +1884,11 @@ eom_image_cancel_load (EomImage *img)
 	g_mutex_unlock (&priv->status_mutex);
 }
 
-gpointer
+EomExifData *
 eom_image_get_exif_info (EomImage *img)
 {
 	EomImagePrivate *priv;
-	gpointer data = NULL;
+	EomExifData *data = NULL;
 
 	g_return_val_if_fail (EOM_IS_IMAGE (img), NULL);
 
diff --git a/src/eom-image.h b/src/eom-image.h
index f93c8ac..f88623c 100644
--- a/src/eom-image.h
+++ b/src/eom-image.h
@@ -27,6 +27,7 @@
 #include "eom-transform.h"
 #include "eom-image-save-info.h"
 #include "eom-enums.h"
+#include "eom-exif-util.h"
 
 #include <glib.h>
 #include <glib-object.h>
@@ -168,7 +169,7 @@ const gchar*      eom_image_get_caption              (EomImage   *img);
 
 const gchar      *eom_image_get_collate_key          (EomImage   *img);
 
-gpointer          eom_image_get_exif_info            (EomImage   *img);
+EomExifData*      eom_image_get_exif_info            (EomImage   *img);
 
 gpointer          eom_image_get_xmp_info             (EomImage   *img);
 
diff --git a/src/eom-metadata-reader.c b/src/eom-metadata-reader.c
index c77ef2e..13e025c 100644
--- a/src/eom-metadata-reader.c
+++ b/src/eom-metadata-reader.c
@@ -102,7 +102,7 @@ eom_metadata_reader_get_exif_chunk (EomMetadataReader *emr, guchar **data, guint
 }
 
 #ifdef HAVE_EXIF
-ExifData*
+EomExifData*
 eom_metadata_reader_get_exif_data (EomMetadataReader *emr)
 {
 	gpointer exif_data = NULL;
@@ -113,7 +113,7 @@ eom_metadata_reader_get_exif_data (EomMetadataReader *emr)
 	if (iface->get_exif_data)
 		exif_data = iface->get_exif_data (emr);
 
-	return exif_data;
+	return (EomExifData *)exif_data;
 }
 #endif
 
diff --git a/src/eom-metadata-reader.h b/src/eom-metadata-reader.h
index ce5dc0c..a217a7c 100644
--- a/src/eom-metadata-reader.h
+++ b/src/eom-metadata-reader.h
@@ -24,7 +24,7 @@
 
 #include <glib-object.h>
 #if HAVE_EXIF
-#include <libexif/exif-data.h>
+#include "eom-exif-util.h"
 #endif
 #if HAVE_EXEMPI
 #include <exempi/xmp.h>
@@ -89,7 +89,7 @@ void                 eom_metadata_reader_get_exif_chunk (EomMetadataReader *emr,
 
 #ifdef HAVE_EXIF
 G_GNUC_INTERNAL
-ExifData*            eom_metadata_reader_get_exif_data	(EomMetadataReader *emr);
+EomExifData*         eom_metadata_reader_get_exif_data	(EomMetadataReader *emr);
 #endif
 
 #ifdef HAVE_EXEMPI
diff --git a/src/eom-properties-dialog.c b/src/eom-properties-dialog.c
index 1dc6715..6d21a5c 100644
--- a/src/eom-properties-dialog.c
+++ b/src/eom-properties-dialog.c
@@ -178,14 +178,14 @@ pd_update_general_tab (EomPropertiesDialog *prop_dlg,
 
 #if HAVE_EXIF
 static void
-eom_exif_set_label (GtkWidget *w, ExifData *exif_data, gint tag_id)
+eom_exif_set_label (GtkWidget *w, EomExifData *exif_data, gint tag_id)
 {
 	gchar exif_buffer[512];
 	const gchar *buf_ptr;
 	gchar *label_text = NULL;
 
 	if (exif_data) {
-		buf_ptr = eom_exif_util_get_value (exif_data, tag_id,
+		buf_ptr = eom_exif_data_get_value (exif_data, tag_id,
 						   exif_buffer, 512);
 
 		if (tag_id == EXIF_TAG_DATE_TIME_ORIGINAL && buf_ptr)
diff --git a/src/eom-thumb-view.c b/src/eom-thumb-view.c
index 6302867..eac2922 100644
--- a/src/eom-thumb-view.c
+++ b/src/eom-thumb-view.c
@@ -422,7 +422,7 @@ thumbview_get_tooltip_string (EomImage *image)
 		gchar time_buffer[32];
 
 		date = eom_exif_util_format_date (
-			eom_exif_util_get_value (exif_data, EXIF_TAG_DATE_TIME_ORIGINAL, time_buffer, 32));
+			eom_exif_data_get_value (exif_data, EXIF_TAG_DATE_TIME_ORIGINAL, time_buffer, 32));
 
 		if (date) {
 			extra_info = g_strdup_printf ("\n%s %s", _("Taken on"), date);