Diasable buttons on Track Properties Dialog when not needed.

[andy/viking.git] / src / degrees_converters.c

diff --git a/src/degrees_converters.c b/src/degrees_converters.c
index 3557e91af68aed861d8ba75e02f534dcce230a07..2261d674e2bc00eb8b0f3de0421ad5ee4a396ca7 100644 (file)
--- a/src/degrees_converters.c
+++ b/src/degrees_converters.c
@@ -1,8 +1,65 @@
+/*
+ * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
+ *
+ * Copyright (C) 2006-2007, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+

 #include <math.h>
 #include <glib.h>
 #include <stdio.h>
 #include <string.h>
 
 #include <math.h>
 #include <glib.h>
 #include <stdio.h>
 #include <string.h>
 

+/**
+ * @param pos_c char for positive value
+ * @param neg_c char for negative value
+ */
+static gchar *convert_dec_to_ddd(gdouble dec, gchar pos_c, gchar neg_c)
+{
+  gchar sign_c = ' ';
+  gdouble val_d;
+  gchar *result = NULL;
+
+  if ( dec > 0 )
+    sign_c = pos_c;
+  else if ( dec < 0 )
+    sign_c = neg_c;
+  else /* Nul value */
+    sign_c = ' ';
+
+  /* Degree */
+  val_d = fabs(dec);
+
+  /* Format */
+  /* TODO : replace "°" as UTF-8 */
+  result = g_strdup_printf ( "%c%f°", sign_c, val_d );
+  return result;
+}
+
+gchar *convert_lat_dec_to_ddd(gdouble lat)
+{
+  return convert_dec_to_ddd(lat, 'N', 'S');
+}
+
+gchar *convert_lon_dec_to_ddd(gdouble lon)
+{
+  return convert_dec_to_ddd(lon, 'E', 'W');
+}
+

 /**
  * @param pos_c char for positive value
  * @param neg_c char for negative value
 /**
  * @param pos_c char for positive value
  * @param neg_c char for negative value