Remove .gitignore do nothing is ignored.
[synfig.git] / synfig-studio / trunk / src / gtkmm / state_star.cpp
index 0803b41..e5b3ace 100644 (file)
@@ -98,11 +98,17 @@ class studio::StateStar_Context : public sigc::trackable
        Gtk::Adjustment adj_number_of_points;
        Gtk::Adjustment adj_inner_tangent;
        Gtk::Adjustment adj_outer_tangent;
+       Gtk::Adjustment adj_inner_width;
+       Gtk::Adjustment adj_outer_width;
+       Gtk::Adjustment adj_radius_ratio;
        Gtk::Adjustment adj_angle_offset;
        Gtk::SpinButton spin_feather;
        Gtk::SpinButton spin_number_of_points;
        Gtk::SpinButton spin_inner_tangent;
        Gtk::SpinButton spin_outer_tangent;
+       Gtk::SpinButton spin_inner_width;
+       Gtk::SpinButton spin_outer_width;
+       Gtk::SpinButton spin_radius_ratio;
        Gtk::SpinButton spin_angle_offset;
 
        Gtk::CheckButton checkbutton_invert;
@@ -112,15 +118,16 @@ class studio::StateStar_Context : public sigc::trackable
        Gtk::CheckButton checkbutton_layer_outline;
        Gtk::CheckButton checkbutton_layer_curve_gradient;
        Gtk::CheckButton checkbutton_layer_plant;
-       Gtk::CheckButton checkbutton_layer_link_offsets;
+       Gtk::CheckButton checkbutton_layer_link_origins;
+       Gtk::CheckButton checkbutton_layer_origins_at_center;
 
 public:
 
-       // this only counts the layers which use blines - they're the only
-       // ones we link the offsets for
+       // this only counts the layers which will have their origins linked
        int layers_to_create()const
        {
                return
+                       (get_layer_star_flag() && get_layer_origins_at_center_flag()) +
                        get_layer_region_flag() +
                        get_layer_outline_flag() +
                        get_layer_curve_gradient_flag() +
@@ -142,6 +149,15 @@ public:
        Real get_outer_tangent()const { return adj_outer_tangent.get_value(); }
        void set_outer_tangent(Real f) { adj_outer_tangent.set_value(f); }
 
+       Real get_inner_width()const { return adj_inner_width.get_value(); }
+       void set_inner_width(Real f) { adj_inner_width.set_value(f); }
+
+       Real get_outer_width()const { return adj_outer_width.get_value(); }
+       void set_outer_width(Real f) { adj_outer_width.set_value(f); }
+
+       Real get_radius_ratio()const { return adj_radius_ratio.get_value(); }
+       void set_radius_ratio(Real f) { adj_radius_ratio.set_value(f); }
+
        Real get_angle_offset()const { return adj_angle_offset.get_value(); }
        void set_angle_offset(Real f) { adj_angle_offset.set_value(f); }
 
@@ -166,8 +182,11 @@ public:
        bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
        void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 
-       bool get_layer_link_offsets_flag()const { return checkbutton_layer_link_offsets.get_active(); }
-       void set_layer_link_offsets_flag(bool x) { return checkbutton_layer_link_offsets.set_active(x); }
+       bool get_layer_link_origins_flag()const { return checkbutton_layer_link_origins.get_active(); }
+       void set_layer_link_origins_flag(bool x) { return checkbutton_layer_link_origins.set_active(x); }
+
+       bool get_layer_origins_at_center_flag()const { return checkbutton_layer_origins_at_center.get_active(); }
+       void set_layer_origins_at_center_flag(bool x) { return checkbutton_layer_origins_at_center.set_active(x); }
 
        void refresh_tool_options(); //to refresh the toolbox
 
@@ -254,6 +273,21 @@ StateStar_Context::load_settings()
        else
                set_outer_tangent(0);
 
+       if(settings.get_value("star.inner_width",value))
+               set_inner_width(atof(value.c_str()));
+       else
+               set_inner_width(1);
+
+       if(settings.get_value("star.outer_width",value))
+               set_outer_width(atof(value.c_str()));
+       else
+               set_outer_width(1);
+
+       if(settings.get_value("star.radius_ratio",value))
+               set_radius_ratio(atof(value.c_str()));
+       else
+               set_radius_ratio(0.5);
+
        if(settings.get_value("star.angle_offset",value))
                set_angle_offset(atof(value.c_str()));
        else
@@ -294,10 +328,15 @@ StateStar_Context::load_settings()
        else
                set_layer_plant_flag(false);
 
-       if(settings.get_value("star.layer_link_offsets",value) && value=="0")
-               set_layer_link_offsets_flag(false);
+       if(settings.get_value("star.layer_link_origins",value) && value=="0")
+               set_layer_link_origins_flag(false);
+       else
+               set_layer_link_origins_flag(true);
+
+       if(settings.get_value("star.layer_origins_at_center",value) && value=="0")
+               set_layer_origins_at_center_flag(false);
        else
-               set_layer_link_offsets_flag(true);
+               set_layer_origins_at_center_flag(true);
 }
 
 void
@@ -308,6 +347,9 @@ StateStar_Context::save_settings()
        settings.set_value("star.number_of_points",strprintf("%d",(int)(get_number_of_points() + 0.5)));
        settings.set_value("star.inner_tangent",strprintf("%f",(float)get_inner_tangent()));
        settings.set_value("star.outer_tangent",strprintf("%f",(float)get_outer_tangent()));
+       settings.set_value("star.inner_width",strprintf("%f",(float)get_inner_width()));
+       settings.set_value("star.outer_width",strprintf("%f",(float)get_outer_width()));
+       settings.set_value("star.radius_ratio",strprintf("%f",(float)get_radius_ratio()));
        settings.set_value("star.angle_offset",strprintf("%f",(float)get_angle_offset()));
        settings.set_value("star.invert",get_invert()?"1":"0");
        settings.set_value("star.regular_polygon",get_regular_polygon()?"1":"0");
@@ -316,7 +358,8 @@ StateStar_Context::save_settings()
        settings.set_value("star.layer_region",get_layer_region_flag()?"1":"0");
        settings.set_value("star.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
        settings.set_value("star.layer_plant",get_layer_plant_flag()?"1":"0");
-       settings.set_value("star.layer_link_offsets",get_layer_link_offsets_flag()?"1":"0");
+       settings.set_value("star.layer_link_origins",get_layer_link_origins_flag()?"1":"0");
+       settings.set_value("star.layer_origins_at_center",get_layer_origins_at_center_flag()?"1":"0");
 }
 
 void
@@ -376,16 +419,22 @@ StateStar_Context::StateStar_Context(CanvasView* canvas_view):
        duckmatic_push(get_work_area()),
        prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
        settings(synfigapp::Main::get_selected_input_device()->settings()),
-       entry_id(),
-       adj_feather(0,0,1,0.01,0.1),
-       adj_number_of_points(4,2,120,1,1,1), // value, lower, upper, step_increment, page_increment, page_size
-       adj_inner_tangent(0,-3,3,.01,.1,.1),
-       adj_outer_tangent(0,-3,10,.01,.1,.1),
-       adj_angle_offset(0,-360,360,.1,1,1), // value, lower, upper, step_increment, page_increment, page_size
+       entry_id(),             //   value lower upper  step page
+       adj_feather(                    0,    0,    1, 0.01, 0.1),
+       adj_number_of_points(   0,    2,  120, 1   , 1  ),
+       adj_inner_tangent(              0,  -10,   10, 0.01, 0.1),
+       adj_outer_tangent(              0,  -10,   10, 0.01, 0.1),
+       adj_inner_width(                0,  -10,   10, 0.01, 0.1),
+       adj_outer_width(                0,  -10,   10, 0.01, 0.1),
+       adj_radius_ratio(               0,  -10,   10, 0.01, 0.1),
+       adj_angle_offset(               0, -360,  360, 0.1 , 1  ),
        spin_feather(adj_feather,0.1,3),
        spin_number_of_points(adj_number_of_points,1,0),
        spin_inner_tangent(adj_inner_tangent,1,2),
        spin_outer_tangent(adj_outer_tangent,1,2),
+       spin_inner_width(adj_inner_width,1,2),
+       spin_outer_width(adj_outer_width,1,2),
+       spin_radius_ratio(adj_radius_ratio,1,2),
        spin_angle_offset(adj_angle_offset,1,1),
        checkbutton_invert(_("Invert")),
        checkbutton_regular_polygon(_("Regular Polygon")),
@@ -394,7 +443,8 @@ StateStar_Context::StateStar_Context(CanvasView* canvas_view):
        checkbutton_layer_outline(_("Create Outline BLine")),
        checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
        checkbutton_layer_plant(_("Create Plant BLine")),
-       checkbutton_layer_link_offsets(_("Link BLine Offsets"))
+       checkbutton_layer_link_origins(_("Link Origins")),
+       checkbutton_layer_origins_at_center(_("BLine Origins at Center"))
 {
        egress_on_selection_change=true;
 
@@ -403,24 +453,39 @@ StateStar_Context::StateStar_Context(CanvasView* canvas_view):
        // Set up the tool options dialog
        options_table.attach(*manage(new Gtk::Label(_("Star Tool"))),                   0, 2,  0,  1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
        options_table.attach(entry_id,                                                                                  0, 2,  1,  2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(*manage(new Gtk::Label(_("Feather:"))),                    0, 1,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_feather,                                                                              1, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_invert,                                                                0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_regular_polygon,                                               0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_star,                                                    0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_outline,                                                 0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_region,                                                  0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_plant,                                                   0, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_curve_gradient,                                  0, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(checkbutton_layer_link_offsets,                                    0, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(*manage(new Gtk::Label(_("Number of Points:"))),   0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_number_of_points,                                                             1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(*manage(new Gtk::Label(_("Inner Tangent:"))),              0, 1, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_inner_tangent,                                                                1, 2, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(*manage(new Gtk::Label(_("Outer Tangent:"))),              0, 1, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_outer_tangent,                                                                1, 2, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(*manage(new Gtk::Label(_("Angle Offset:"))),               0, 1, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_angle_offset,                                                                 1, 2, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_star,                                                    0, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_outline,                                                 0, 2,  3,  4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_region,                                                  0, 2,  4,  5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_plant,                                                   0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_curve_gradient,                                  0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_link_origins,                                    0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_layer_origins_at_center,                               0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_invert,                                                                0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(checkbutton_regular_polygon,                                               0, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Feather:"))),                    0, 1, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_feather,                                                                              1, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Number of Points:"))),   0, 1, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_number_of_points,                                                             1, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Inner Tangent:"))),              0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_inner_tangent,                                                                1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Outer Tangent:"))),              0, 1, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_outer_tangent,                                                                1, 2, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Inner Width:"))),                0, 1, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_inner_width,                                                                  1, 2, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Outer Width:"))),                0, 1, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_outer_width,                                                                  1, 2, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Radius Ratio:"))),               0, 1, 17, 18, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_radius_ratio,                                                                 1, 2, 17, 18, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+
+       options_table.attach(*manage(new Gtk::Label(_("Angle Offset:"))),               0, 1, 18, 19, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       options_table.attach(spin_angle_offset,                                                                 1, 2, 18, 19, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 
        options_table.show_all();
 
@@ -530,31 +595,46 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
        const Point p1(transform.unperform(_p1));
        const Point p2(transform.unperform(_p2));
 
+       Real radius_ratio(get_radius_ratio());
        Real radius1((p2-p1).mag());
-       Real radius2(radius1/2);
+       Real radius2(radius1 * radius_ratio);
        int points = get_number_of_points();
        Real inner_tangent = get_inner_tangent() * radius1;
        Real outer_tangent = get_outer_tangent() * radius2;
+       Real inner_width = get_inner_width();
+       Real outer_width = get_outer_width();
        Angle::deg offset(get_angle_offset());
        bool regular(get_regular_polygon());
        Angle::deg angle(360.0/points);
-       Real x(p1[0]), y(p1[1]);
+       Vector origin;
+       Real x, y;
+
+       if (get_layer_origins_at_center_flag())
+       {
+               x = y = 0;
+               origin = p1;
+       }
+       else
+       {
+               x = p1[0];
+               y = p1[1];
+       }
 
        std::vector<BLinePoint> new_list;
        int point(0);
        for (int i = 0; i < points; i++)
        {
                new_list.push_back(*(new BLinePoint));
-               new_list[point].set_width(1);
+               new_list[point].set_width(outer_width);
                new_list[point].set_vertex(Point(radius1*Angle::cos(angle*i + offset).get() + x,
-                                                                        radius1*Angle::sin(angle*i + offset).get() + y));
+                                                                                radius1*Angle::sin(angle*i + offset).get() + y));
                new_list[point++].set_tangent(Point(-Angle::sin(angle*i + offset).get(),
                                                                                         Angle::cos(angle*i + offset).get()) * outer_tangent);
 
                if (!regular)
                {
                        new_list.push_back(*(new BLinePoint));
-                       new_list[point].set_width(1);
+                       new_list[point].set_width(inner_width);
                        new_list[point].set_vertex(Point(radius2*Angle::cos(angle*i + angle/2 + offset).get() + x,
                                                                                         radius2*Angle::sin(angle*i + angle/2 + offset).get() + y));
                        new_list[point++].set_tangent(Point(-Angle::sin(angle*i + angle/2 + offset).get(),
@@ -565,8 +645,8 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
        ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
        assert(value_node_bline);
 
-       ValueNode_Const::Handle value_node_offset(ValueNode_Const::create(Vector()));
-       assert(value_node_offset);
+       ValueNode_Const::Handle value_node_origin(ValueNode_Const::create(origin));
+       assert(value_node_origin);
 
        // Set the looping flag
        value_node_bline->set_loop(true);
@@ -586,15 +666,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
        if (get_layer_star_flag())
        {
                layer=get_canvas_interface()->add_layer_to("star",canvas,depth);
+               if (!layer)
+               {
+                       get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
+                       group.cancel();
+                       return;
+               }
                layer_selection.push_back(layer);
 
-               layer->set_param("offset",p1);
-               get_canvas_interface()->signal_layer_param_changed()(layer,"offset");
-
-               layer->set_param("radius1",(p2-p1).mag());
+               layer->set_param("radius1",radius1);
                get_canvas_interface()->signal_layer_param_changed()(layer,"radius1");
 
-               layer->set_param("radius2",(p2-p1).mag()/2);
+               layer->set_param("radius2",radius2);
                get_canvas_interface()->signal_layer_param_changed()(layer,"radius2");
 
                layer->set_param("angle",offset);
@@ -614,6 +697,35 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
 
                layer->set_description(get_id());
                get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
+
+               // only link the star's origin parameter if the option is selected, we're putting bline
+               // origins at their centers, and we're creating more than one layer
+               if (get_layer_link_origins_flag() && get_layer_origins_at_center_flag() && layers_to_create > 1)
+               {
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
+                       assert(action);
+
+                       action->set_param("canvas",get_canvas());
+                       action->set_param("canvas_interface",get_canvas_interface());
+                       action->set_param("layer",layer);
+                       if(!action->set_param("param",String("origin")))
+                               synfig::error("LayerParamConnect didn't like \"param\"");
+                       if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
+                               synfig::error("LayerParamConnect didn't like \"value_node\"");
+
+                       if(!get_canvas_interface()->get_instance()->perform_action(action))
+                       {
+                               //get_canvas_view()->get_ui_interface()->error(_("Unable to create Star layer"));
+                               group.cancel();
+                               throw String(_("Unable to create Star layer"));
+                               return;
+                       }
+               }
+               else
+               {
+                       layer->set_param("origin",p1);
+                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
+               }
        }
 
        ///////////////////////////////////////////////////////////////////////////
@@ -625,13 +737,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 
                Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
-               assert(layer);
+               if (!layer)
+               {
+                       get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
+                       group.cancel();
+                       return;
+               }
                layer_selection.push_back(layer);
                layer->set_description(get_id()+_(" Gradient"));
                get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
@@ -651,18 +768,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                        }
                }
 
-               // only link the curve gradient's offset parameter if the option is selected and we're creating more than one layer
-               if (get_layer_link_offsets_flag() && layers_to_create > 1)
+               // only link the curve gradient's origin parameter if the option is selected and we're creating more than one layer
+               if (get_layer_link_origins_flag() && layers_to_create > 1)
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
                        action->set_param("canvas_interface",get_canvas_interface());
                        action->set_param("layer",layer);
-                       if(!action->set_param("param",String("offset")))
+                       if(!action->set_param("param",String("origin")))
                                synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+                       if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
                                synfig::error("LayerParamConnect didn't like \"value_node\"");
 
                        if(!get_canvas_interface()->get_instance()->perform_action(action))
@@ -673,6 +790,11 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                                return;
                        }
                }
+               else
+               {
+                       layer->set_param("origin",origin);
+                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
+               }
        }
 
        ///////////////////////////////////////////////////////////////////////////
@@ -684,13 +806,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 
                Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
-               assert(layer);
+               if (!layer)
+               {
+                       get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
+                       group.cancel();
+                       return;
+               }
                layer_selection.push_back(layer);
                layer->set_description(get_id()+_(" Plant"));
                get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
@@ -710,18 +837,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                        }
                }
 
-               // only link the plant's offset parameter if the option is selected and we're creating more than one layer
-               if (get_layer_link_offsets_flag() && layers_to_create > 1)
+               // only link the plant's origin parameter if the option is selected and we're creating more than one layer
+               if (get_layer_link_origins_flag() && layers_to_create > 1)
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
                        action->set_param("canvas_interface",get_canvas_interface());
                        action->set_param("layer",layer);
-                       if(!action->set_param("param",String("offset")))
+                       if(!action->set_param("param",String("origin")))
                                synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+                       if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
                                synfig::error("LayerParamConnect didn't like \"value_node\"");
 
                        if(!get_canvas_interface()->get_instance()->perform_action(action))
@@ -732,6 +859,11 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                                return;
                        }
                }
+               else
+               {
+                       layer->set_param("origin",origin);
+                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
+               }
        }
 
        ///////////////////////////////////////////////////////////////////////////
@@ -743,7 +875,12 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 
                Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
-               assert(layer);
+               if (!layer)
+               {
+                       get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
+                       group.cancel();
+                       return;
+               }
                layer_selection.push_back(layer);
                layer->set_description(get_id()+_(" Region"));
                get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
@@ -754,13 +891,10 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                layer->set_param("invert",get_invert());
                get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 
-               if(get_layer_outline_flag())
-                       layer->set_param("color",synfigapp::Main::get_background_color());
-
-               // I don't know if it's safe to reuse the same layer_param_connect action, so I'm
+               // I don't know if it's safe to reuse the same LayerParamConnect action, so I'm
                // using 2 separate ones.
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
@@ -780,18 +914,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                        }
                }
 
-               // only link the region's offset parameter if the option is selected and we're creating more than one layer
-               if (get_layer_link_offsets_flag() && layers_to_create > 1)
+               // only link the region's origin parameter if the option is selected and we're creating more than one layer
+               if (get_layer_link_origins_flag() && layers_to_create > 1)
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
                        action->set_param("canvas_interface",get_canvas_interface());
                        action->set_param("layer",layer);
-                       if(!action->set_param("param",String("offset")))
+                       if(!action->set_param("param",String("origin")))
                                synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+                       if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
                                synfig::error("LayerParamConnect didn't like \"value_node\"");
 
                        if(!get_canvas_interface()->get_instance()->perform_action(action))
@@ -802,6 +936,11 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                                return;
                        }
                }
+               else
+               {
+                       layer->set_param("origin",origin);
+                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
+               }
        }
 
        ///////////////////////////////////////////////////////////////////////////
@@ -811,7 +950,12 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
        if (get_layer_outline_flag())
        {
                Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
-               assert(layer);
+               if (!layer)
+               {
+                       get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
+                       group.cancel();
+                       return;
+               }
                layer_selection.push_back(layer);
                layer->set_description(get_id()+_(" Outline"));
                get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
@@ -823,7 +967,7 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
@@ -843,18 +987,18 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                        }
                }
 
-               // only link the outline's offset parameter if the option is selected and we're creating more than one layer
-               if (get_layer_link_offsets_flag() && layers_to_create > 1)
+               // only link the outline's origin parameter if the option is selected and we're creating more than one layer
+               if (get_layer_link_origins_flag() && layers_to_create > 1)
                {
-                       synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+                       synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
                        assert(action);
 
                        action->set_param("canvas",get_canvas());
                        action->set_param("canvas_interface",get_canvas_interface());
                        action->set_param("layer",layer);
-                       if(!action->set_param("param",String("offset")))
+                       if(!action->set_param("param",String("origin")))
                                synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+                       if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
                                synfig::error("LayerParamConnect didn't like \"value_node\"");
 
                        if(!get_canvas_interface()->get_instance()->perform_action(action))
@@ -865,6 +1009,11 @@ StateStar_Context::make_star(const Point& _p1, const Point& _p2)
                                return;
                        }
                }
+               else
+               {
+                       layer->set_param("origin",origin);
+                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
+               }
        }
 
        egress_on_selection_change=false;
@@ -906,6 +1055,7 @@ StateStar_Context::event_mouse_click_handler(const Smach::event& x)
 
        if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
        {
+               if (!point2_duck) return Smach::RESULT_OK;
                point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
                get_work_area()->queue_draw();
                return Smach::RESULT_ACCEPT;