Modify Ducks functionality

[synfig.git] / synfig-studio / src / gtkmm / duck.cpp

diff --git a/synfig-studio/src/gtkmm/duck.cpp b/synfig-studio/src/gtkmm/duck.cpp
index e88306e..c142a5b 100644 (file)
--- a/synfig-studio/src/gtkmm/duck.cpp
+++ b/synfig-studio/src/gtkmm/duck.cpp
@@ -33,8 +33,13 @@
 #include "duck.h"
 #include <ETL/misc>
 
-#include "general.h"
+#include <synfig/valuenode_bline.h>
+#include <synfig/valuenode_blinecalctangent.h>
+#include <synfig/valuenode_blinecalcvertex.h>
+#include <synfig/valuenode_blinecalcwidth.h>
+#include <synfig/valuenode_composite.h>
 
+#include "general.h"
 #endif
 
 /* === U S I N G =========================================================== */
@@ -153,6 +158,12 @@ Duck::set_trans_point(const synfig::Point &x)
        set_sub_trans_point(transform_stack_.unperform(x));
 }
 
+void
+Duck::set_trans_point(const synfig::Point &x, const synfig::Time &time)
+{
+       set_sub_trans_point(transform_stack_.unperform(x), time);
+}
+
 //! Sets the origin point.
 void
 Duck::set_origin(const synfig::Point &x)
@@ -195,13 +206,105 @@ Duck::get_sub_trans_point()const
 }
 
 void
+Duck::set_sub_trans_point(const synfig::Point &x, const synfig::Time &time)
+{
+       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();
+               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_halves = round_to_int(Angle::deg(rotations).get()/180);
+               rotations += change;
+               int new_halves = round_to_int(Angle::deg(rotations).get()/180);
+               if (old_halves != new_halves &&
+                       (new_halves > 1 || new_halves < -1 ||
+                        old_halves > 1 || old_halves < -1))
+                       synfig::info("rotation: %.2f turns", new_halves/2.0);
+       } else if(get_type() == Duck::TYPE_VERTEX || get_type() == Duck::TYPE_POSITION)
+       {
+
+               ValueNode_BLineCalcVertex::Handle bline_vertex;
+               ValueNode_Composite::Handle composite;
+
+               if ((bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(get_value_desc().get_value_node())) ||
+                       ((composite = ValueNode_Composite::Handle::cast_dynamic(get_value_desc().get_value_node())) &&
+                        composite->get_type() == ValueBase::TYPE_BLINEPOINT &&
+                        (bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(composite->get_link("point")))))
+               {
+                       synfig::Point closest_point = get_point();
+                       synfig::Real radius = 0.0;
+                       ValueNode_BLine::Handle bline = ValueNode_BLine::Handle::cast_dynamic(bline_vertex->get_link(bline_vertex->get_link_index_from_name("bline")));
+                       synfig::find_closest_point(
+                               (*bline)(time),
+                               get_point(),
+                               radius,
+                               bline->get_loop(),
+                               &closest_point);
+                       set_point(closest_point);
+               }
+       }
+}
+
+//! Updates width and tangent ducks that change when the origin moves
+void
+Duck::update(const synfig::Time &time)
+{
+       if((get_type() == Duck::TYPE_TANGENT || get_type() == Duck::TYPE_WIDTH) && origin_duck)
+       {
+               ValueNode_BLineCalcVertex::Handle bline_vertex;
+               ValueNode_Composite::Handle composite;
+               if ((bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(origin_duck->get_value_desc().get_value_node())) ||
+                       ((composite = ValueNode_Composite::Handle::cast_dynamic(origin_duck->get_value_desc().get_value_node())) &&
+                        composite->get_type() == ValueBase::TYPE_BLINEPOINT &&
+                        (bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(composite->get_link("point")))))
+               {
+                       synfig::Real radius = 0.0;
+                       ValueNode_BLine::Handle bline(ValueNode_BLine::Handle::cast_dynamic(bline_vertex->get_link(bline_vertex->get_link_index_from_name("bline"))));
+                       Real amount = synfig::find_closest_point((*bline)(time), origin_duck->get_point(), radius, bline->get_loop());
+
+                       int vertex_amount_index(bline_vertex->get_link_index_from_name("amount"));
+                       ValueNode::Handle vertex_amount_value_node(bline_vertex->get_link(vertex_amount_index));
+
+
+                       if (ValueNode_BLineCalcTangent::Handle bline_tangent = ValueNode_BLineCalcTangent::Handle::cast_dynamic(get_value_desc().get_value_node()))
+                       {
+                               switch (bline_tangent->get_type())
+                               {
+                               case ValueBase::TYPE_ANGLE:
+                               {
+                                       Angle angle((*bline_tangent)(time, amount).get(Angle()));
+                                       set_point(Point(Angle::cos(angle).get(), Angle::sin(angle).get()));
+                                       break;
+                               }
+                               case ValueBase::TYPE_REAL:
+                                       set_point(Point((*bline_tangent)(time, amount).get(Real()), 0));
+                                       break;
+                               case ValueBase::TYPE_VECTOR:
+                                       set_point((*bline_tangent)(time, amount).get(Vector()));
+                                       break;
+                               default:
+                                       break;
+                               }
+                       }
+                       else if (ValueNode_BLineCalcWidth::Handle bline_width = ValueNode_BLineCalcWidth::Handle::cast_dynamic(get_value_desc().get_value_node()))
+                                       set_point(Point((*bline_width)(time, amount).get(Real()), 0));
+               }
+
+       }
+}
+
+
+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);
@@ -213,8 +316,6 @@ Duck::set_sub_trans_point(const synfig::Point &x)
                         old_halves > 1 || old_halves < -1))
                        synfig::info("rotation: %.2f turns", new_halves/2.0);
        }
-       else
-               set_point((x-get_sub_trans_origin())/get_scalar());
 }
 
 synfig::Point