12 files changed, 70 insertions, 65 deletions

diff --git a/src/controller/actions/zoom.c b/src/controller/actions/zoom.c
index 7209e85..53da49b 100644
--- a/src/controller/actions/zoom.c
+++ b/src/controller/actions/zoom.c
@@ -14,7 +14,7 @@ void
 zoom (double x1, double y1, double x2, double y2)
 {
   S.zoom.active = true;
-  
+
   S.zoom.coords[0] = x1;
   S.zoom.coords[1] = x2;
   S.zoom.coords[2] = y1;
@@ -30,7 +30,7 @@ zoom (double x1, double y1, double x2, double y2)
    */
   double width = S.zoom.coords[1] - S.zoom.coords[0];
   double height = S.zoom.coords[3] - S.zoom.coords[2];
-  double difference = fabs(width - height);
+  double difference = fabs (width - height);
 
   if (width > height)
     {
@@ -46,8 +46,8 @@ zoom (double x1, double y1, double x2, double y2)
   GLint viewport[4];
   glGetIntegerv (GL_VIEWPORT, viewport);
   reshape (viewport[2], viewport[3]);
-  
+
   glutPostRedisplay ();
-  
+
   return;
 }