X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftrunk%2Fsrc%2Fgtkmm%2Fduck.cpp;h=63bebe7099844e06e48f2c058ca71f00adf43c02;hb=f7c2dc75685bf7dfce2b8152656938f66d6df11e;hp=b345be5f92dc453d6a9420c6cd0df1870950c292;hpb=837b63e9fb829d66d43f4f169861f8979f76820d;p=synfig.git

diff --git a/synfig-studio/trunk/src/gtkmm/duck.cpp b/synfig-studio/trunk/src/gtkmm/duck.cpp
index b345be5..63bebe7 100644
--- a/synfig-studio/trunk/src/gtkmm/duck.cpp
+++ b/synfig-studio/trunk/src/gtkmm/duck.cpp
@@ -30,6 +30,9 @@
 #endif
 
 #include "duck.h"
+#include <ETL/misc>
+
+#include "general.h"
 
 #endif
 
@@ -64,6 +67,7 @@ int _DuckCounter::counter(0);
 /* === M E T H O D S ======================================================= */
 
 Duck::Duck():
+	rotations(synfig::Angle::deg(0)),
 	origin(0,0),
 	scalar(1),
 	editable(false),
@@ -74,6 +78,7 @@ Duck::Duck():
 Duck::Duck(const synfig::Point &point):
 	type_(TYPE_NONE),
 	point(point),
+	rotations(synfig::Angle::deg(0)),
 	origin(0,0),
 	scalar(1),
 	guid_(0),
@@ -84,6 +89,7 @@ Duck::Duck(const synfig::Point &point):
 
 Duck::Duck(const synfig::Point &point,const synfig::Point &origin):
 	point(point),
+	rotations(synfig::Angle::deg(0)),
 	origin(origin),
 	scalar(1),
 	guid_(0),
@@ -184,7 +190,22 @@ Duck::get_sub_trans_point()const
 void
 Duck::set_sub_trans_point(const synfig::Point &x)
 {
-	set_point((x-get_sub_trans_origin())/get_scalar());
+	if (get_type() == Duck::TYPE_TANGENT ||
+		get_type() == Duck::TYPE_ANGLE)
+	{
+		Angle old_angle = get_point().angle();
+		set_point((x-get_sub_trans_origin())/get_scalar());
+		Angle change = get_point().angle() - old_angle;
+		while (change < Angle::deg(-180)) change += Angle::deg(360);
+		while (change > Angle::deg(180)) change -= Angle::deg(360);
+		int old_quarters = round_to_int(Angle::deg(rotations).get()/90);
+		rotations += change;
+		int new_quarters = round_to_int(Angle::deg(rotations).get()/90);
+		if (old_quarters != new_quarters)
+			synfig::info("rotation: %.2f turns", new_quarters/4.0);
+	}
+	else
+		set_point((x-get_sub_trans_origin())/get_scalar());
 }
 
 synfig::Point