Constant radian/degree factor

diff --git a/libs/gtkmm2ext/utils.cc b/libs/gtkmm2ext/utils.cc
index 06cd0b82a995cac76e73a38c963a10620e0c00e6..7e340be79169d1376e083f5cac04bb90ef8ecb02 100644 (file)
--- a/libs/gtkmm2ext/utils.cc
+++ b/libs/gtkmm2ext/utils.cc
@@ -686,7 +686,7 @@ Gtkmm2ext::rounded_right_half_rectangle (Cairo::RefPtr<Cairo::Context> context,
 void
 Gtkmm2ext::rounded_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees);  //tr
@@ -699,7 +699,7 @@ Gtkmm2ext::rounded_rectangle (cairo_t* cr, double x, double y, double w, double
 void
 Gtkmm2ext::rounded_left_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_line_to (cr, x+w, y); // tr
@@ -712,7 +712,7 @@ Gtkmm2ext::rounded_left_half_rectangle (cairo_t* cr, double x, double y, double
 void
 Gtkmm2ext::rounded_right_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_arc (cr, x + w - r, y + r, r, -90 * degrees, 0 * degrees);  //tr
@@ -725,7 +725,7 @@ Gtkmm2ext::rounded_right_half_rectangle (cairo_t* cr, double x, double y, double
 void
 Gtkmm2ext::rounded_top_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_move_to (cr, x+w, y+h);
@@ -738,7 +738,7 @@ Gtkmm2ext::rounded_top_half_rectangle (cairo_t* cr, double x, double y, double w
 void
 Gtkmm2ext::rounded_bottom_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_move_to (cr, x, y);
@@ -752,7 +752,7 @@ Gtkmm2ext::rounded_bottom_half_rectangle (cairo_t* cr, double x, double y, doubl
 void
 Gtkmm2ext::rounded_top_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
 {
-       double degrees = M_PI / 180.0;
+       static const double degrees = M_PI / 180.0;
 
        cairo_new_sub_path (cr);
        cairo_move_to (cr, x+w, y+h);