1 files changed, 148 insertions, 0 deletions
diff --git a/src/libexif/exif-log.c b/src/libexif/exif-log.c
new file mode 100644
index 0000000..5dde1ce
--- /dev/null
+++ b/src/libexif/exif-log.c
@@ -0,0 +1,148 @@
+/* exif-log.c
+ *
+ * Copyright © 2004 Lutz Müller <lutz@users.sourceforge.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include <libexif/exif-log.h>
+#include <libexif/i18n.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+struct _ExifLog {
+	unsigned int ref_count;
+
+	ExifLogFunc func;
+	void *data;
+
+	ExifMem *mem;
+};
+
+static struct {
+	ExifLogCode code;
+	const char *title;
+	const char *message;
+} codes[] = {
+	{ EXIF_LOG_CODE_DEBUG, N_("Debugging information"),
+	  N_("Debugging information is available.") },
+	{ EXIF_LOG_CODE_NO_MEMORY, N_("Not enough memory"),
+	  N_("The system cannot provide enough memory.") },
+	{ EXIF_LOG_CODE_CORRUPT_DATA, N_("Corrupt data"),
+	  N_("The data provided does not follow the specification.") },
+	{ 0, NULL, NULL }
+};
+
+const char *
+exif_log_code_get_title (ExifLogCode code)
+{
+	unsigned int i;
+
+	for (i = 0; codes[i].title; i++) if (codes[i].code == code) break;
+	return _(codes[i].title);
+}
+
+const char *
+exif_log_code_get_message (ExifLogCode code)
+{
+	unsigned int i;
+
+	for (i = 0; codes[i].message; i++) if (codes[i].code == code) break;
+	return _(codes[i].message);
+}
+
+ExifLog *
+exif_log_new_mem (ExifMem *mem)
+{
+	ExifLog *log;
+
+	log = exif_mem_alloc (mem, sizeof (ExifLog));
+	if (!log) return NULL;
+	log->ref_count = 1;
+
+	log->mem = mem;
+	exif_mem_ref (mem);
+
+	return log;
+}
+
+ExifLog *
+exif_log_new (void)
+{
+	ExifMem *mem = exif_mem_new_default ();
+	ExifLog *log = exif_log_new_mem (mem);
+
+	exif_mem_unref (mem);
+
+	return log;
+}
+
+void
+exif_log_ref (ExifLog *log)
+{
+	if (!log) return;
+	log->ref_count++;
+}
+
+void
+exif_log_unref (ExifLog *log)
+{
+	if (!log) return;
+	if (log->ref_count > 0) log->ref_count--;
+	if (!log->ref_count) exif_log_free (log);
+}
+
+void
+exif_log_free (ExifLog *log)
+{
+	ExifMem *mem = log ? log->mem : NULL;
+
+	if (!log) return;
+
+	exif_mem_free (mem, log);
+	exif_mem_unref (mem);
+}
+
+void
+exif_log_set_func (ExifLog *log, ExifLogFunc func, void *data)
+{
+	if (!log) return;
+	log->func = func;
+	log->data = data;
+}
+
+void
+exif_log (ExifLog *log, ExifLogCode code, const char *domain,
+	  const char *format, ...)
+{
+	va_list args;
+
+	va_start (args, format);
+	exif_logv (log, code, domain, format, args);
+	va_end (args);
+}
+
+void
+exif_logv (ExifLog *log, ExifLogCode code, const char *domain,
+	   const char *format, va_list args)
+{
+	if (!log) return;
+	if (!log->func) return;
+	log->func (log, code, domain, format, args, log->data);
+}