Remove ancient trunk folder from svn repository
[synfig.git] / synfig-studio / trunk / src / gtkmm / state_circle.cpp
diff --git a/synfig-studio/trunk/src/gtkmm/state_circle.cpp b/synfig-studio/trunk/src/gtkmm/state_circle.cpp
deleted file mode 100644 (file)
index fe82e21..0000000
+++ /dev/null
@@ -1,1063 +0,0 @@
-/* === S Y N F I G ========================================================= */
-/*!    \file state_circle.cpp
-**     \brief Template File
-**
-**     $Id$
-**
-**     \legal
-**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**     Copyright (c) 2008 Chris Moore
-**
-**     This package is free software; you can redistribute it and/or
-**     modify it under the terms of the GNU General Public License as
-**     published by the Free Software Foundation; either version 2 of
-**     the License, or (at your option) any later version.
-**
-**     This package is distributed in the hope that it will be useful,
-**     but WITHOUT ANY WARRANTY; without even the implied warranty of
-**     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-**     General Public License for more details.
-**     \endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-#      include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-#      include <config.h>
-#endif
-
-#include <gtkmm/dialog.h>
-#include <gtkmm/entry.h>
-
-#include <synfig/valuenode_dynamiclist.h>
-#include <synfigapp/action_system.h>
-#include <synfig/valuenode_bline.h>
-
-#include "state_circle.h"
-#include "canvasview.h"
-#include "workarea.h"
-#include "app.h"
-
-#include <synfigapp/action.h>
-#include "event_mouse.h"
-#include "event_layerclick.h"
-#include "toolbox.h"
-#include "dialog_tooloptions.h"
-#include <gtkmm/optionmenu.h>
-#include "duck.h"
-#include "widget_enum.h"
-#include <synfigapp/main.h>
-
-#include "general.h"
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace std;
-using namespace etl;
-using namespace synfig;
-using namespace studio;
-
-/* === M A C R O S ========================================================= */
-enum CircleFalloff
-{
-       CIRCLE_SQUARED  =0,
-       CIRCLE_INTERPOLATION_LINEAR     =1,
-       CIRCLE_COSINE   =2,
-       CIRCLE_SIGMOND  =3,
-       CIRCLE_SQRT             =4,
-       CIRCLE_NUM_FALLOFF
-};
-
-/* === G L O B A L S ======================================================= */
-
-StateCircle studio::state_circle;
-
-/* === C L A S S E S & S T R U C T S ======================================= */
-
-class studio::StateCircle_Context : public sigc::trackable
-{
-       etl::handle<CanvasView> canvas_view_;
-       CanvasView::IsWorking is_working;
-
-       Duckmatic::Push duckmatic_push;
-
-       Point point_holder;
-
-       etl::handle<Duck> point2_duck;
-
-       void refresh_ducks();
-
-       bool prev_workarea_layer_status_;
-
-       //Toolbox settings
-       synfigapp::Settings& settings;
-
-       //Toolbox display
-       Gtk::Table options_table;
-
-       Gtk::Entry              entry_id; //what to name the layer
-
-       Widget_Enum             enum_falloff;
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       Widget_Enum             enum_blend;
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-       Gtk::Adjustment adj_feather;
-       Gtk::Adjustment adj_number_of_bline_points;
-       Gtk::Adjustment adj_bline_point_angle_offset;
-       Gtk::SpinButton spin_feather;
-       Gtk::SpinButton spin_number_of_bline_points;
-       Gtk::SpinButton spin_bline_point_angle_offset;
-
-       Gtk::CheckButton checkbutton_invert;
-       Gtk::CheckButton checkbutton_layer_circle;
-       Gtk::CheckButton checkbutton_layer_region;
-       Gtk::CheckButton checkbutton_layer_outline;
-       Gtk::CheckButton checkbutton_layer_curve_gradient;
-       Gtk::CheckButton checkbutton_layer_plant;
-       Gtk::CheckButton checkbutton_layer_link_origins;
-       Gtk::CheckButton checkbutton_layer_origins_at_center;
-
-public:
-
-       // this only counts the layers which will have their origins linked
-       int layers_to_create()const
-       {
-               return
-                       (get_layer_circle_flag() && get_layer_origins_at_center_flag()) +
-                       get_layer_region_flag() +
-                       get_layer_outline_flag() +
-                       get_layer_curve_gradient_flag() +
-                       get_layer_plant_flag();
-       }
-
-       synfig::String get_id()const { return entry_id.get_text(); }
-       void set_id(const synfig::String& x) { return entry_id.set_text(x); }
-
-       int get_falloff()const { return enum_falloff.get_value(); }
-       void set_falloff(int x) { return enum_falloff.set_value(x); }
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       int get_blend()const { return enum_blend.get_value(); }
-       void set_blend(int x) { return enum_blend.set_value(x); }
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-       Real get_feather()const { return adj_feather.get_value(); }
-       void set_feather(Real f) { adj_feather.set_value(f); }
-
-       Real get_number_of_bline_points()const { return adj_number_of_bline_points.get_value(); }
-       void set_number_of_bline_points(Real f) { adj_number_of_bline_points.set_value(f); }
-
-       Real get_bline_point_angle_offset()const { return adj_bline_point_angle_offset.get_value(); }
-       void set_bline_point_angle_offset(Real f) { adj_bline_point_angle_offset.set_value(f); }
-
-       bool get_invert()const { return checkbutton_invert.get_active(); }
-       void set_invert(bool i) { checkbutton_invert.set_active(i); }
-
-       bool get_layer_circle_flag()const { return checkbutton_layer_circle.get_active(); }
-       void set_layer_circle_flag(bool x) { return checkbutton_layer_circle.set_active(x); }
-
-       bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
-       void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
-
-       bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
-       void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
-
-       bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
-       void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
-
-       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_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
-
-       //events
-       Smach::event_result event_stop_handler(const Smach::event& x);
-       Smach::event_result event_refresh_handler(const Smach::event& x);
-       Smach::event_result event_mouse_click_handler(const Smach::event& x);
-       Smach::event_result event_refresh_tool_options(const Smach::event& x);
-
-       //constructor destructor
-       StateCircle_Context(CanvasView* canvas_view);
-       ~StateCircle_Context();
-
-       //Canvas interaction
-       const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
-       etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
-       synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
-       WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
-
-       //Modifying settings etc.
-       void load_settings();
-       void save_settings();
-       void reset();
-       void increment_id();
-       bool egress_on_selection_change;
-       Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
-       {
-               if(egress_on_selection_change)
-                       throw Smach::egress_exception();
-               return Smach::RESULT_OK;
-       }
-
-       void make_circle(const Point& p1, const Point& p2);
-
-};     // END of class StateCircle_Context
-
-/* === M E T H O D S ======================================================= */
-
-StateCircle::StateCircle():
-       Smach::state<StateCircle_Context>("circle")
-{
-       insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
-       insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
-       insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
-       insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
-       insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
-       insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
-       insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
-       insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
-}
-
-StateCircle::~StateCircle()
-{
-}
-
-void
-StateCircle_Context::load_settings()
-{
-       String value;
-
-       //parse the arguments yargh!
-       if(settings.get_value("circle.id",value))
-               set_id(value);
-       else
-               set_id("Circle");
-
-       if(settings.get_value("circle.fallofftype",value) && value != "")
-               set_falloff(atoi(value.c_str()));
-       else
-               set_falloff(2);
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       if(settings.get_value("circle.blend",value) && value != "")
-               set_blend(atoi(value.c_str()));
-       else
-               set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-       if(settings.get_value("circle.feather",value))
-               set_feather(atof(value.c_str()));
-       else
-               set_feather(0);
-
-       if(settings.get_value("circle.number_of_bline_points",value))
-               set_number_of_bline_points(atof(value.c_str()));
-       else
-               set_number_of_bline_points(4);
-
-       if(settings.get_value("circle.bline_point_angle_offset",value))
-               set_bline_point_angle_offset(atof(value.c_str()));
-       else
-               set_bline_point_angle_offset(0);
-
-       if(settings.get_value("circle.invert",value) && value != "0")
-               set_invert(true);
-       else
-               set_invert(false);
-
-       if(settings.get_value("circle.layer_circle",value) && value=="0")
-               set_layer_circle_flag(false);
-       else
-               set_layer_circle_flag(true);
-
-       if(settings.get_value("circle.layer_region",value) && value=="1")
-               set_layer_region_flag(true);
-       else
-               set_layer_region_flag(false);
-
-       if(settings.get_value("circle.layer_outline",value) && value=="1")
-               set_layer_outline_flag(true);
-       else
-               set_layer_outline_flag(false);
-
-       if(settings.get_value("circle.layer_curve_gradient",value) && value=="1")
-               set_layer_curve_gradient_flag(true);
-       else
-               set_layer_curve_gradient_flag(false);
-
-       if(settings.get_value("circle.layer_plant",value) && value=="1")
-               set_layer_plant_flag(true);
-       else
-               set_layer_plant_flag(false);
-
-       if(settings.get_value("circle.layer_link_origins",value) && value=="0")
-               set_layer_link_origins_flag(false);
-       else
-               set_layer_link_origins_flag(true);
-
-       if(settings.get_value("circle.layer_origins_at_center",value) && value=="0")
-               set_layer_origins_at_center_flag(false);
-       else
-               set_layer_origins_at_center_flag(true);
-}
-
-void
-StateCircle_Context::save_settings()
-{
-       settings.set_value("circle.id",get_id());
-       settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       settings.set_value("circle.blend",strprintf("%d",get_blend()));
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-       settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
-       settings.set_value("circle.number_of_bline_points",strprintf("%d",(int)(get_number_of_bline_points() + 0.5)));
-       settings.set_value("circle.bline_point_angle_offset",strprintf("%f",(float)get_bline_point_angle_offset()));
-       settings.set_value("circle.invert",get_invert()?"1":"0");
-       settings.set_value("circle.layer_circle",get_layer_circle_flag()?"1":"0");
-       settings.set_value("circle.layer_outline",get_layer_outline_flag()?"1":"0");
-       settings.set_value("circle.layer_region",get_layer_region_flag()?"1":"0");
-       settings.set_value("circle.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
-       settings.set_value("circle.layer_plant",get_layer_plant_flag()?"1":"0");
-       settings.set_value("circle.layer_link_origins",get_layer_link_origins_flag()?"1":"0");
-       settings.set_value("circle.layer_origins_at_center",get_layer_origins_at_center_flag()?"1":"0");
-}
-
-void
-StateCircle_Context::reset()
-{
-       refresh_ducks();
-}
-
-void
-StateCircle_Context::increment_id()
-{
-       String id(get_id());
-       int number=1;
-       int digits=0;
-
-       if(id.empty())
-               id="Circle";
-
-       // If there is a number
-       // already at the end of the
-       // id, then remove it.
-       if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
-       {
-               // figure out how many digits it is
-               for (digits = 0;
-                        (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
-                        digits++)
-                       ;
-
-               String str_number;
-               str_number=String(id,id.size()-digits,id.size());
-               id=String(id,0,id.size()-digits);
-
-               number=atoi(str_number.c_str());
-       }
-       else
-       {
-               number=1;
-               digits=3;
-       }
-
-       number++;
-
-       // Add the number back onto the id
-       {
-               const String format(strprintf("%%0%dd",digits));
-               id+=strprintf(format.c_str(),number);
-       }
-
-       // Set the ID
-       set_id(id);
-}
-
-StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
-       canvas_view_(canvas_view),
-       is_working(*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(),                             //   value lower upper  step page
-       adj_feather(                                    0,    0,    1, 0.01, 0.1),
-       adj_number_of_bline_points(             0,    2,  120, 1   , 1  ),
-       adj_bline_point_angle_offset(   0, -360,  360, 0.1 , 1  ),
-       spin_feather(adj_feather,0.1,3),
-       spin_number_of_bline_points(adj_number_of_bline_points,1,0),
-       spin_bline_point_angle_offset(adj_bline_point_angle_offset,1,1),
-       checkbutton_invert(_("Invert")),
-       checkbutton_layer_circle(_("Create Circle Layer")),
-       checkbutton_layer_region(_("Create Region BLine")),
-       checkbutton_layer_outline(_("Create Outline BLine")),
-       checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
-       checkbutton_layer_plant(_("Create Plant BLine")),
-       checkbutton_layer_link_origins(_("Link Origins")),
-       checkbutton_layer_origins_at_center(_("BLine Origins at Center"))
-{
-       egress_on_selection_change=true;
-
-       // Set up the tool options dialog
-       enum_falloff.set_param_desc(ParamDesc("falloff")
-               .set_local_name(_("Falloff"))
-               .set_description(_("Determines the falloff function for the feather"))
-               .set_hint("enum")
-               .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
-               .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
-               .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
-               .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
-               .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
-               .set_local_name(_("Blend Method"))
-               .set_description(_("Defines the blend method to be used for circles")));
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-       load_settings();
-
-       options_table.attach(*manage(new Gtk::Label(_("Circle 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(checkbutton_layer_circle,                                          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);
-
-       //invert flag
-       options_table.attach(checkbutton_invert,                                                0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-
-       options_table.attach(*manage(new Gtk::Label(_("Falloff:"))),            0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(enum_falloff,                                      1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-
-       //feather stuff
-       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);
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-       options_table.attach(enum_blend,                                        0, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-       options_table.attach(*manage(new Gtk::Label(_("BLine Points:"))),       0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_number_of_bline_points,                                       1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-
-options_table.attach(*manage(new Gtk::Label(_("Point Angle Offset:"))),        0, 1, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-       options_table.attach(spin_bline_point_angle_offset,                                     1, 2, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
-
-       options_table.show_all();
-
-       refresh_tool_options();
-       App::dialog_tool_options->present();
-
-       // Turn off layer clicking
-       get_work_area()->set_allow_layer_clicks(false);
-
-       // clear out the ducks
-       get_work_area()->clear_ducks();
-
-       // Refresh the work area
-       get_work_area()->queue_draw();
-
-       // Hide the tables if they are showing
-       //prev_table_status=get_canvas_view()->tables_are_visible();
-       //if(prev_table_status)get_canvas_view()->hide_tables();
-
-       // Disable the time bar
-       //get_canvas_view()->set_sensitive_timebar(false);
-
-       // Connect a signal
-       //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
-       get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
-
-       App::toolbox->refresh();
-}
-
-void
-StateCircle_Context::refresh_tool_options()
-{
-       App::dialog_tool_options->clear();
-       App::dialog_tool_options->set_widget(options_table);
-       App::dialog_tool_options->set_local_name(_("Circle Tool"));
-       App::dialog_tool_options->set_name("circle");
-}
-
-Smach::event_result
-StateCircle_Context::event_refresh_tool_options(const Smach::event& /*x*/)
-{
-       refresh_tool_options();
-       return Smach::RESULT_ACCEPT;
-}
-
-StateCircle_Context::~StateCircle_Context()
-{
-       save_settings();
-
-       // Restore layer clicking
-       get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
-       get_canvas_view()->work_area->reset_cursor();
-
-       App::dialog_tool_options->clear();
-
-       // Enable the time bar
-       //get_canvas_view()->set_sensitive_timebar(true);
-
-       // Bring back the tables if they were out before
-       //if(prev_table_status)get_canvas_view()->show_tables();
-
-       // Refresh the work area
-       get_work_area()->queue_draw();
-
-       get_canvas_view()->queue_rebuild_ducks();
-
-       App::toolbox->refresh();
-}
-
-Smach::event_result
-StateCircle_Context::event_stop_handler(const Smach::event& /*x*/)
-{
-       throw Smach::egress_exception();
-}
-
-Smach::event_result
-StateCircle_Context::event_refresh_handler(const Smach::event& /*x*/)
-{
-       refresh_ducks();
-       return Smach::RESULT_ACCEPT;
-}
-
-void
-StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
-{
-       synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
-       synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
-
-       Layer::Handle layer;
-
-       Canvas::Handle canvas;
-       int depth(0);
-
-       // we are temporarily using the layer to hold something
-       layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
-       if(layer)
-       {
-               depth=layer->get_depth();
-               canvas=layer->get_canvas();
-       }
-
-       synfigapp::SelectionManager::LayerList layer_selection;
-       if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
-               layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
-
-       const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
-       const Point p1(transform.unperform(_p1));
-       const Point p2(transform.unperform(_p2));
-
-       Real radius((p2-p1).mag());
-       int points = get_number_of_bline_points();
-       Angle::deg offset(get_bline_point_angle_offset());
-       Angle::deg angle(360.0/points);
-       Real tangent(4 * ((points == 2)
-                                         ? 1
-                                         : ((2 * Angle::cos(angle/2).get() - Angle::cos(angle).get() - 1) / Angle::sin(angle).get())));
-       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;
-       for (int i = 0; i < points; i++)
-       {
-               new_list.push_back(*(new BLinePoint));
-               new_list[i].set_width(1);
-               new_list[i].set_vertex(Point(radius*Angle::cos(angle*i + offset).get() + x,
-                                                                        radius*Angle::sin(angle*i + offset).get() + y));
-               new_list[i].set_tangent(Point(-radius*tangent*Angle::sin(angle*i + offset).get(),
-                                                                          radius*tangent*Angle::cos(angle*i + offset).get()));
-       }
-
-       ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
-       assert(value_node_bline);
-
-       ValueNode_Const::Handle value_node_origin(ValueNode_Const::create(origin));
-       assert(value_node_origin);
-
-       // Set the looping flag
-       value_node_bline->set_loop(true);
-
-       if(!canvas)
-               canvas=get_canvas_view()->get_canvas();
-
-       value_node_bline->set_member_canvas(canvas);
-
-       // count how many layers we're going to be creating
-       int layers_to_create = this->layers_to_create();
-
-       ///////////////////////////////////////////////////////////////////////////
-       //   C I R C L E
-       ///////////////////////////////////////////////////////////////////////////
-
-       if (get_layer_circle_flag() &&
-               get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
-       {
-               layer=get_canvas_interface()->add_layer_to("circle",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("radius",(p2-p1).mag());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
-
-               layer->set_param("falloff",get_falloff());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
-
-               layer->set_param("feather",get_feather());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
-
-               layer->set_param("invert",get_invert());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-               layer->set_param("blend_method",get_blend());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-               layer->set_description(get_id());
-               get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
-
-               // only link the circle'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 Circle layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Circle layer"));
-                               return;
-                       }
-               }
-               else
-               {
-                       layer->set_param("origin",p1);
-                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
-               }
-       }
-
-       ///////////////////////////////////////////////////////////////////////////
-       //   C U R V E   G R A D I E N T
-       ///////////////////////////////////////////////////////////////////////////
-
-       if(get_layer_curve_gradient_flag())
-       {
-               synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
-
-               Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",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_description(get_id()+_(" Gradient"));
-               get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-               layer->set_param("blend_method",get_blend());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-               {
-                       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("bline")))
-                               synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
-                               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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Gradient layer"));
-                               return;
-                       }
-               }
-
-               // 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("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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Gradient layer"));
-                               return;
-                       }
-               }
-               else
-               {
-                       layer->set_param("origin",origin);
-                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
-               }
-       }
-
-       ///////////////////////////////////////////////////////////////////////////
-       //   P L A N T
-       ///////////////////////////////////////////////////////////////////////////
-
-       if(get_layer_plant_flag())
-       {
-               synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
-
-               Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",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_description(get_id()+_(" Plant"));
-               get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-               layer->set_param("blend_method",get_blend());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-               {
-                       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("bline")))
-                               synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
-                               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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Plant layer"));
-                               return;
-                       }
-               }
-
-               // 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("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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Plant layer"));
-                               return;
-                       }
-               }
-               else
-               {
-                       layer->set_param("origin",origin);
-                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
-               }
-       }
-
-       ///////////////////////////////////////////////////////////////////////////
-       //   R E G I O N
-       ///////////////////////////////////////////////////////////////////////////
-
-       if(get_layer_region_flag())
-       {
-               synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
-
-               Layer::Handle layer(get_canvas_interface()->add_layer_to("region",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_description(get_id()+_(" Region"));
-               get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-               layer->set_param("blend_method",get_blend());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-               layer->set_param("feather",get_feather());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
-
-               layer->set_param("invert",get_invert());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
-
-               // 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("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("bline")))
-                               synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
-                               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 Region layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Region layer"));
-                               return;
-                       }
-               }
-
-               // 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("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 Region layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Region layer"));
-                               return;
-                       }
-               }
-               else
-               {
-                       layer->set_param("origin",origin);
-                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
-               }
-       }
-
-       ///////////////////////////////////////////////////////////////////////////
-       //   O U T L I N E
-       ///////////////////////////////////////////////////////////////////////////
-
-       if (get_layer_outline_flag())
-       {
-               Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",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_description(get_id()+_(" Outline"));
-               get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
-
-#ifdef BLEND_METHOD_IN_TOOL_OPTIONS
-               layer->set_param("blend_method",get_blend());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
-#endif // BLEND_METHOD_IN_TOOL_OPTIONS
-
-               layer->set_param("feather",get_feather());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
-
-               layer->set_param("invert",get_invert());
-               get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
-
-               {
-                       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("bline")))
-                               synfig::error("LayerParamConnect didn't like \"param\"");
-                       if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
-                               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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Outline layer"));
-                               return;
-                       }
-               }
-
-               // 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("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 BLine layer"));
-                               group.cancel();
-                               throw String(_("Unable to create Outline layer"));
-                               return;
-                       }
-               }
-               else
-               {
-                       layer->set_param("origin",origin);
-                       get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
-               }
-       }
-
-       egress_on_selection_change=false;
-       get_canvas_interface()->get_selection_manager()->clear_selected_layers();
-       get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
-       egress_on_selection_change=true;
-
-       reset();
-       increment_id();
-}
-
-Smach::event_result
-StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
-{
-       const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
-
-       if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
-       {
-               point_holder=get_work_area()->snap_point_to_grid(event.pos);
-               etl::handle<Duck> duck=new Duck();
-               duck->set_point(point_holder);
-               duck->set_name("p1");
-               duck->set_type(Duck::TYPE_POSITION);
-               duck->set_editable(false);
-               get_work_area()->add_duck(duck);
-
-               point2_duck=new Duck();
-               point2_duck->set_point(Vector(0,0));
-               point2_duck->set_name("radius");
-               point2_duck->set_origin(duck);
-               point2_duck->set_radius(true);
-               point2_duck->set_scalar(-1);
-               point2_duck->set_type(Duck::TYPE_RADIUS);
-               point2_duck->set_hover(true);
-               get_work_area()->add_duck(point2_duck);
-
-               return Smach::RESULT_ACCEPT;
-       }
-
-       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;
-       }
-
-       if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
-       {
-               Point point(get_work_area()->snap_point_to_grid(event.pos));
-
-               if (App::restrict_radius_ducks)
-               {
-                       if ((point[0] - point_holder[0]) < 0) point[0] = point_holder[0];
-                       if ((point[1] - point_holder[1]) < 0) point[1] = point_holder[1];
-               }
-
-               make_circle(point_holder, point);
-               get_work_area()->clear_ducks();
-               return Smach::RESULT_ACCEPT;
-       }
-
-       return Smach::RESULT_OK;
-}
-
-
-void
-StateCircle_Context::refresh_ducks()
-{
-       get_work_area()->clear_ducks();
-       get_work_area()->queue_draw();
-}