From 65a5146ce5ccbf049d379a379efdfeb41c34a2b3 Mon Sep 17 00:00:00 2001
From: oliskoli <oliskoli>
Date: Mon, 27 Oct 2008 20:44:06 +0000
Subject: [PATCH] Add simple swap data filter.

---
 Makefile.in   |  4 ++-
 filter_vecs.c |  6 +++++
 swapdata.c    | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 swapdata.c

diff --git a/Makefile.in b/Makefile.in
index 071c13f33..5bf16d6d5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -67,7 +67,7 @@ FMTS=@FMTS@
 
 FILTERS=position.o radius.o duplicate.o arcdist.o polygon.o smplrout.o \
 	reverse_route.o sort.o stackfilter.o trackfilter.o discard.o \
-	nukedata.o interpolate.o transform.o height.o
+	nukedata.o interpolate.o transform.o height.o swapdata.o
 
 JEEPS=jeeps/gpsapp.o jeeps/gpscom.o \
 	jeeps/gpsmath.o jeeps/gpsmem.o  \
@@ -770,6 +770,8 @@ stmsdf.o: stmsdf.c defs.h config.h queue.h gbtypes.h zlib/zlib.h \
 stmwpp.o: stmwpp.c defs.h config.h queue.h gbtypes.h zlib/zlib.h \
   zlib/zconf.h gbfile.h cet.h cet_util.h inifile.h session.h csv_util.h
 strptime.o: strptime.c strptime.h
+swapdata.o: swapdata.c defs.h config.h queue.h gbtypes.h zlib/zlib.h \
+  zlib/zconf.h gbfile.h cet.h cet_util.h inifile.h session.h filterdefs.h
 tef_xml.o: tef_xml.c defs.h config.h queue.h gbtypes.h zlib/zlib.h \
   zlib/zconf.h gbfile.h cet.h cet_util.h inifile.h session.h xmlgeneric.h
 text.o: text.c defs.h config.h queue.h gbtypes.h zlib/zlib.h zlib/zconf.h \
diff --git a/filter_vecs.c b/filter_vecs.c
index 43ed5bac1..249698346 100644
--- a/filter_vecs.c
+++ b/filter_vecs.c
@@ -45,6 +45,7 @@ extern filter_vecs_t nuke_vecs;
 extern filter_vecs_t interpolatefilt_vecs;
 extern filter_vecs_t transform_vecs;
 extern filter_vecs_t height_vecs;
+extern filter_vecs_t swapdata_vecs;
 
 static
 fl_vecs_t filter_vec_list[] = {
@@ -124,6 +125,11 @@ fl_vecs_t filter_vec_list[] = {
 		"height",
 		"Manipulate altitudes"
 	},
+	{
+		&swapdata_vecs,
+		"swap",
+		"Swap latitude and longitude of all loaded points"
+	},
 	
 #endif
         {
diff --git a/swapdata.c b/swapdata.c
new file mode 100644
index 000000000..ddbc55e8f
--- /dev/null
+++ b/swapdata.c
@@ -0,0 +1,72 @@
+/*
+
+    Swap data filter
+
+    Copyright (C) 2008 Olaf Klein, o.b.klein@gpsbabel.org
+
+    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 USA
+
+ */
+ 
+#include "defs.h"
+#include "filterdefs.h"
+#include <ctype.h>
+
+#define MYNAME "swapdata"
+
+#if FILTERS_ENABLED
+
+static
+arglist_t swapdata_args[] = {
+	ARG_TERMINATOR
+};
+
+static void
+swapdata_cb(const waypoint *ref)
+{
+	waypoint *wpt = (waypoint *)ref;
+	double x;
+
+	x = wpt->latitude;
+	wpt->latitude = wpt->longitude;
+	wpt->longitude = x;
+
+	return;
+}
+
+/*******************************************************************************
+* %%%        global callbacks called by gpsbabel main process              %%% *
+*******************************************************************************/
+
+static void 
+swapdata_process(void)	/* this procedure must be present in vecs */
+{
+	waypt_disp_all(swapdata_cb);
+	route_disp_all(NULL, NULL, swapdata_cb);
+	track_disp_all(NULL, NULL, swapdata_cb);
+}
+
+/*******************************************************************************/
+
+filter_vecs_t swapdata_vecs = {
+	NULL,
+	swapdata_process,
+	NULL,
+	NULL,
+	swapdata_args
+};
+
+/*******************************************************************************/
+#endif // FILTERS_ENABLED
-- 
2.30.2