--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file state_bline.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 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 "state_bline.h"
+#include "canvasview.h"
+#include "workarea.h"
+#include "app.h"
+#include <synfig/valuenode_bline.h>
+#include <ETL/hermite>
+#include <ETL/calculus>
+#include <utility>
+#include "event_mouse.h"
+#include "event_layerclick.h"
+#include "toolbox.h"
+#include "dialog_tooloptions.h"
+#include <gtkmm/spinbutton.h>
+#include <synfig/transform.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 ========================================================= */
+
+// if defined, show the first duck as green while drawing
+#define DISTINGUISH_FIRST_DUCK
+
+/* === G L O B A L S ======================================================= */
+
+StateBLine studio::state_bline;
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+class studio::StateBLine_Context : public sigc::trackable
+{
+ etl::handle<CanvasView> canvas_view_;
+ CanvasView::IsWorking is_working;
+
+ bool prev_table_status;
+ bool loop_;
+ bool prev_workarea_layer_status_;
+
+ int depth;
+ Canvas::Handle canvas;
+
+ Gtk::Menu menu;
+
+ Duckmatic::Push duckmatic_push;
+
+ etl::handle<Duck> curr_duck;
+
+ etl::handle<Duck> next_duck;
+
+ std::list<synfig::ValueNode_Const::Handle> bline_point_list;
+ synfigapp::Settings& settings;
+
+ bool on_vertex_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
+ bool on_tangent1_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
+ bool on_tangent2_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
+
+
+ void popup_handle_menu(synfig::ValueNode_Const::Handle value_node);
+ void popup_vertex_menu(synfig::ValueNode_Const::Handle value_node);
+ void popup_bezier_menu(float location, synfig::ValueNode_Const::Handle value_node);
+
+ void bline_detach_handle(synfig::ValueNode_Const::Handle value_node);
+ void bline_attach_handle(synfig::ValueNode_Const::Handle value_node);
+ void bline_delete_vertex(synfig::ValueNode_Const::Handle value_node);
+ void bline_insert_vertex(synfig::ValueNode_Const::Handle value_node,float origin=0.5);
+ void loop_bline();
+ void unloop_bline();
+
+ void refresh_ducks(bool x=true);
+
+ Gtk::Table options_table;
+ Gtk::Entry entry_id;
+ 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_offsets;
+ Gtk::CheckButton checkbutton_auto_export;
+ Gtk::Button button_make;
+ Gtk::Button button_clear;
+ Gtk::Adjustment adj_feather;
+ Gtk::SpinButton spin_feather;
+
+
+
+public:
+
+ int layers_to_create()const
+ {
+ return
+ get_layer_region_flag() +
+ get_layer_outline_flag() +
+ get_layer_curve_gradient_flag() +
+ get_layer_plant_flag();
+ }
+
+ void sanity_check()
+ {
+ if(layers_to_create()==0)
+ set_layer_region_flag(true);
+ }
+
+ bool get_auto_export_flag()const { return checkbutton_auto_export.get_active(); }
+ void set_auto_export_flag(bool x) { return checkbutton_auto_export.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_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); }
+
+ Real get_feather() const { return adj_feather.get_value(); }
+ void set_feather(Real x) { return adj_feather.set_value(x); }
+ synfig::String get_id()const { return entry_id.get_text(); }
+ void set_id(const synfig::String& x) { return entry_id.set_text(x); }
+
+ 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_mouse_release_handler(const Smach::event& x);
+ Smach::event_result event_mouse_motion_handler(const Smach::event& x);
+ Smach::event_result event_refresh_tool_options(const Smach::event& x);
+
+ Smach::event_result event_hijack(const Smach::event& /*x*/) { return Smach::RESULT_ACCEPT; }
+
+ void refresh_tool_options();
+
+ StateBLine_Context(CanvasView* canvas_view);
+
+ ~StateBLine_Context();
+
+ 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();}
+ const synfig::TransformStack& get_transform_stack()const { return canvas_view_->get_curr_transform_stack(); }
+
+ void load_settings();
+ void save_settings();
+ void reset();
+ void increment_id();
+ //void on_user_click(synfig::Point point);
+
+ bool run_();
+ bool run();
+
+ 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;
+ }
+
+}; // END of class StateBLine_Context
+
+
+/* === M E T H O D S ======================================================= */
+
+StateBLine::StateBLine():
+ Smach::state<StateBLine_Context>("bline")
+{
+ insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateBLine_Context::event_layer_selection_changed_handler));
+ insert(event_def(EVENT_STOP,&StateBLine_Context::event_stop_handler));
+ insert(event_def(EVENT_REFRESH,&StateBLine_Context::event_refresh_handler));
+ insert(event_def(EVENT_REFRESH_DUCKS,&StateBLine_Context::event_hijack));
+ insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateBLine_Context::event_mouse_click_handler));
+ insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateBLine_Context::event_mouse_release_handler));
+ insert(event_def(EVENT_WORKAREA_MOUSE_MOTION,&StateBLine_Context::event_mouse_motion_handler));
+ insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateBLine_Context::event_mouse_motion_handler));
+ insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateBLine_Context::event_refresh_tool_options));
+}
+
+StateBLine::~StateBLine()
+{
+}
+
+void
+StateBLine_Context::load_settings()
+{
+ String value;
+
+ if(settings.get_value("bline.layer_region",value) && value=="0")
+ set_layer_region_flag(false);
+ else
+ set_layer_region_flag(true);
+
+ if(settings.get_value("bline.layer_outline",value) && value=="0")
+ set_layer_outline_flag(false);
+ else
+ set_layer_outline_flag(true);
+
+ if(settings.get_value("bline.layer_curve_gradient",value) && value=="1")
+ set_layer_curve_gradient_flag(true);
+ else
+ set_layer_curve_gradient_flag(false);
+
+ if(settings.get_value("bline.layer_plant",value) && value=="1")
+ set_layer_plant_flag(true);
+ else
+ set_layer_plant_flag(false);
+
+ if(settings.get_value("bline.layer_link_offsets",value) && value=="0")
+ set_layer_link_offsets_flag(false);
+ else
+ set_layer_link_offsets_flag(true);
+
+ if(settings.get_value("bline.auto_export",value) && value=="1")
+ set_auto_export_flag(true);
+ else
+ set_auto_export_flag(false);
+
+ if(settings.get_value("bline.id",value))
+ set_id(value);
+ else
+ set_id("NewBLine");
+
+ if(settings.get_value("bline.feather",value))
+ {
+ Real n = atof(value.c_str());
+ set_feather(n);
+ }
+
+ sanity_check();
+}
+
+void
+StateBLine_Context::save_settings()
+{
+ sanity_check();
+ settings.set_value("bline.layer_outline",get_layer_outline_flag()?"1":"0");
+ settings.set_value("bline.layer_region",get_layer_region_flag()?"1":"0");
+ settings.set_value("bline.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
+ settings.set_value("bline.layer_plant",get_layer_plant_flag()?"1":"0");
+ settings.set_value("bline.layer_link_offsets",get_layer_link_offsets_flag()?"1":"0");
+ settings.set_value("bline.auto_export",get_auto_export_flag()?"1":"0");
+ settings.set_value("bline.id",get_id().c_str());
+ settings.set_value("bline.feather",strprintf("%f",get_feather()));
+}
+
+void
+StateBLine_Context::reset()
+{
+ loop_=false;
+ bline_point_list.clear();
+ refresh_ducks();
+}
+
+void
+StateBLine_Context::increment_id()
+{
+ String id(get_id());
+ int number=1;
+ int digits=0;
+
+ if(id.empty())
+ id="NewBLine";
+
+ // 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);
+ // synfig::info("---------------- \"%s\"",str_number.c_str());
+
+ 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);
+}
+
+
+StateBLine_Context::StateBLine_Context(CanvasView* canvas_view):
+ canvas_view_(canvas_view),
+ is_working(*canvas_view),
+ loop_(false),
+ prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
+ duckmatic_push(get_work_area()),
+ settings(synfigapp::Main::get_selected_input_device()->settings()),
+ entry_id(),
+ checkbutton_layer_region(_("Fill")),
+ checkbutton_layer_outline(_("Outline")),
+ checkbutton_layer_curve_gradient(_("Gradient")),
+ checkbutton_layer_plant(_("Plant")),
+ checkbutton_layer_link_offsets(_("Link Offsets")),
+ checkbutton_auto_export(_("Auto Export")),
+ button_make(_("Make")),
+ button_clear(_("Clear")),
+ adj_feather(0,0,10000,0.01,0.1),
+ spin_feather(adj_feather,0.01,4)
+{
+ depth=-1;
+ egress_on_selection_change=true;
+ load_settings();
+
+ // Set up the tool options dialog
+ //options_table.attach(*manage(new Gtk::Label(_("BLine 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_outline, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(checkbutton_layer_region, 0, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(checkbutton_layer_plant, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(checkbutton_layer_curve_gradient, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(checkbutton_layer_link_offsets, 0, 2, 6, 7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(checkbutton_auto_export, 0, 2, 7, 8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(*manage(new Gtk::Label(_("Feather"))), 0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ options_table.attach(spin_feather, 1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ //options_table.attach(button_make, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+ //button_make.signal_pressed().connect(sigc::mem_fun(*this,&StateBLine_Context::run));
+ 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::StateBLine_Context::on_user_click));
+ get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
+
+ App::toolbox->refresh();
+}
+
+void
+StateBLine_Context::refresh_tool_options()
+{
+ App::dialog_tool_options->clear();
+ App::dialog_tool_options->set_widget(options_table);
+ App::dialog_tool_options->set_local_name(_("BLine Tool"));
+ App::dialog_tool_options->set_name("bline");
+
+ App::dialog_tool_options->add_button(
+ Gtk::StockID("gtk-execute"),
+ _("Make BLine and/or Region")
+ )->signal_clicked().connect(
+ sigc::hide_return(sigc::mem_fun(
+ *this,
+ &StateBLine_Context::run
+ ))
+ );
+
+ App::dialog_tool_options->add_button(
+ Gtk::StockID("gtk-clear"),
+ _("Clear current BLine")
+ )->signal_clicked().connect(
+ sigc::mem_fun(
+ *this,
+ &StateBLine_Context::reset
+ )
+ );
+}
+
+Smach::event_result
+StateBLine_Context::event_refresh_tool_options(const Smach::event& /*x*/)
+{
+ refresh_tool_options();
+ return Smach::RESULT_ACCEPT;
+}
+
+StateBLine_Context::~StateBLine_Context()
+{
+ run();
+
+ save_settings();
+ App::dialog_tool_options->clear();
+
+ get_canvas_view()->work_area->reset_cursor();
+
+ // Restore layer clicking
+ get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
+
+ // 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();
+
+// get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
+
+ // Refresh the work area
+ get_work_area()->queue_draw();
+
+ App::toolbox->refresh();
+}
+
+Smach::event_result
+StateBLine_Context::event_stop_handler(const Smach::event& /*x*/)
+{
+// synfig::info("STATE RotoBLine: Received Stop Event");
+// run();
+ reset();
+// throw Smach::egress_exception();
+// get_canvas_view()->get_smach().pop_state();
+ return Smach::RESULT_ACCEPT;
+}
+
+Smach::event_result
+StateBLine_Context::event_refresh_handler(const Smach::event& /*x*/)
+{
+// synfig::info("STATE RotoBLine: Received Refresh Event");
+ refresh_ducks();
+ return Smach::RESULT_ACCEPT;
+}
+
+bool
+StateBLine_Context::run()
+{
+ sanity_check();
+
+ String err;
+ bool success(false);
+ for(int i=5;i>0 && !success;i--)try
+ {
+ success=run_();
+ }
+ catch(String s)
+ {
+ err=s;
+ }
+ if(!success && !err.empty())
+ {
+ get_canvas_view()->get_ui_interface()->error(err);
+ }
+ return success;
+}
+
+bool
+StateBLine_Context::run_()
+{
+ curr_duck=0;
+ next_duck=0;
+
+ // Now we need to generate it
+
+ if(bline_point_list.empty())
+ {
+ return false;
+ }
+ if(bline_point_list.size()<2)
+ {
+ //get_canvas_view()->get_ui_interface()->error(_("You need at least two (2) points to create a BLine"));
+ return false;
+ }
+
+ do
+ {
+
+ // Create the action group
+ synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New BLine"));
+
+ std::vector<BLinePoint> new_list;
+ std::list<synfig::ValueNode_Const::Handle>::iterator iter;
+ const synfig::TransformStack& transform(get_transform_stack());
+
+ for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
+ {
+ BLinePoint bline_point((*iter)->get_value().get(BLinePoint()));
+ Point new_vertex(transform.unperform(bline_point.get_vertex()));
+
+ bline_point.set_tangent1(
+ transform.unperform(
+ bline_point.get_tangent1()+bline_point.get_vertex()
+ ) -new_vertex
+ );
+
+ bline_point.set_tangent2(
+ transform.unperform(
+ bline_point.get_tangent2()+bline_point.get_vertex()
+ ) -new_vertex
+ );
+
+ bline_point.set_vertex(new_vertex);
+
+ new_list.push_back(bline_point);
+ }
+
+ 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);
+
+ // Set the looping flag
+ value_node_bline->set_loop(loop_);
+
+ // Add the BLine to the canvas
+ if(get_auto_export_flag() && !get_canvas_interface()->add_value_node(value_node_bline,get_id()))
+ {
+ //get_canvas_view()->get_ui_interface()->error(_("Unable to add value node"));
+ group.cancel();
+ increment_id();
+ throw String(_("Unable to add value node"));
+ return false;
+ }
+
+ Layer::Handle layer;
+
+ // we are temporarily using the layer to hold something
+ layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
+
+ if(layer)
+ {
+ if(depth<0)
+ depth=layer->get_depth();
+ if(!canvas)
+ canvas=layer->get_canvas();
+ }
+ else
+ depth=0;
+
+ if(!canvas)
+ canvas=get_canvas_view()->get_canvas();
+
+ value_node_bline->set_member_canvas(canvas);
+
+ synfigapp::SelectionManager::LayerList layer_selection;
+
+ ///////////////////////////////////////////////////////////////////////////
+ // 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));
+ assert(layer);
+ 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"));
+ 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 false;
+ }
+ }
+
+ if (get_layer_link_offsets_flag())
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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")))
+ synfig::error("LayerParamConnect didn't like \"param\"");
+ if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+ 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 false;
+ }
+ }
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // 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));
+ assert(layer);
+ 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"));
+ 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 false;
+ }
+ }
+
+ // plants don't have offsets?
+ if (get_layer_link_offsets_flag())
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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")))
+ synfig::error("LayerParamConnect didn't like \"param\"");
+ if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+ 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 false;
+ }
+ }
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // 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));
+ assert(layer);
+ layer_selection.push_back(layer);
+ layer->set_description(get_id()+_(" Region"));
+ get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
+
+ if(get_feather())
+ {
+ layer->set_param("feather",get_feather());
+ get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
+ }
+
+ 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
+ // using 2 separate ones.
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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 false;
+ }
+ }
+
+ if (get_layer_link_offsets_flag())
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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")))
+ synfig::error("LayerParamConnect didn't like \"param\"");
+ if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+ 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 false;
+ }
+ }
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // O U T L I N E
+ ///////////////////////////////////////////////////////////////////////////
+
+ if(get_layer_outline_flag())
+ {
+ synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
+
+ Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
+ assert(layer);
+ layer_selection.push_back(layer);
+ layer->set_description(get_id()+_(" Outline"));
+ get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
+ if(get_feather())
+ {
+ layer->set_param("feather",get_feather());
+ get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
+ }
+
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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 false;
+ }
+ }
+
+ if (get_layer_link_offsets_flag())
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
+ 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")))
+ synfig::error("LayerParamConnect didn't like \"param\"");
+ if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
+ 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 false;
+ }
+ }
+ }
+
+ 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;
+
+ //if(finish_bline_dialog.get_region_flag() || finish_bline_dialog.get_bline_flag())
+ // get_canvas_interface()->signal_dirty_preview()();
+
+ } while(0);
+
+ reset();
+ increment_id();
+ return true;
+}
+
+Smach::event_result
+StateBLine_Context::event_mouse_motion_handler(const Smach::event& x)
+{
+ const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
+
+ if(curr_duck)
+ {
+ //synfig::info("Moved Duck");
+ Point p(get_work_area()->snap_point_to_grid(event.pos));
+ curr_duck->set_trans_point(p);
+ if(next_duck)
+ next_duck->set_trans_point(p);
+ get_work_area()->queue_draw();
+ return Smach::RESULT_ACCEPT;
+ }
+
+ return Smach::RESULT_OK;
+}
+
+Smach::event_result
+StateBLine_Context::event_mouse_release_handler(const Smach::event& /*x*/)
+{
+ if(curr_duck)
+ {
+ //synfig::info("Released current duck");
+ curr_duck->signal_edited()(curr_duck->get_point());
+ if(next_duck)
+ {
+ //synfig::info("grabbing next duck");
+ curr_duck=next_duck;
+ next_duck=0;
+ }
+ return Smach::RESULT_ACCEPT;
+ }
+ return Smach::RESULT_OK;
+}
+
+Smach::event_result
+StateBLine_Context::event_mouse_click_handler(const Smach::event& x)
+{
+ // synfig::info("STATE BLINE: Received mouse button down Event");
+ const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
+ switch(event.button)
+ {
+ case BUTTON_LEFT:
+ {
+ // If we are already looped up, then don't try to add anything else
+ if(loop_)
+ return Smach::RESULT_OK;
+
+ BLinePoint bline_point;
+
+ bline_point.set_vertex(get_work_area()->snap_point_to_grid(event.pos));
+ //bline_point.set_width(synfigapp::Main::get_bline_width());
+ bline_point.set_width(1.0f);
+ bline_point.set_origin(0.5f);
+ bline_point.set_split_tangent_flag(false);
+ bline_point.set_tangent1(Vector(0,0));
+
+ // set the tangent
+ /*
+ if(bline_point_list.empty())
+ {
+ bline_point.set_tangent1(Vector(1,1));
+ }
+ else
+ {
+ const Vector t(event.pos-bline_point_list.back()->get_value().get(BLinePoint()).get_vertex());
+ bline_point.set_tangent1(t);
+ }
+
+ if(bline_point_list.size()>1)
+ {
+ std::list<synfig::ValueNode_Const::Handle>::iterator iter;
+ iter=bline_point_list.end();
+ iter--;iter--;
+ BLinePoint prev(bline_point_list.back()->get_value().get(BLinePoint()));
+ prev.set_tangent1(event.pos-(*iter)->get_value().get(BLinePoint()).get_vertex());
+ bline_point_list.back()->set_value(prev);
+ };
+ */
+
+ bline_point_list.push_back(ValueNode_Const::create(bline_point));
+
+ refresh_ducks();
+ return Smach::RESULT_ACCEPT;
+ }
+
+ case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
+ if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
+ return Smach::RESULT_ACCEPT;
+
+ default:
+ return Smach::RESULT_OK;
+ }
+}
+
+void
+StateBLine_Context::refresh_ducks(bool button_down)
+{
+ get_work_area()->clear_ducks();
+ get_work_area()->queue_draw();
+
+ if(bline_point_list.empty())
+ return;
+
+ list<ValueNode_Const::Handle>::iterator iter;
+
+ handle<WorkArea::Bezier> bezier;
+ handle<WorkArea::Duck> duck,tduck;
+ BLinePoint bline_point;
+
+ for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
+ {
+ ValueNode_Const::Handle value_node(*iter);
+ bline_point=(value_node->get_value().get(BLinePoint()));
+ assert(value_node);
+
+
+ // First add the duck associated with this vertex
+ duck=new WorkArea::Duck(bline_point.get_vertex());
+ duck->set_editable(true);
+#ifdef DISTINGUISH_FIRST_DUCK
+ if (iter!=bline_point_list.begin())
+ duck->set_type(Duck::TYPE_VERTEX);
+#else
+ duck->set_type(Duck::TYPE_VERTEX);
+#endif
+ duck->set_name(strprintf("%x-vertex",value_node.get()));
+ duck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_vertex_change),value_node)
+ );
+ duck->signal_user_click(2).connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_vertex_menu),value_node)
+ );
+ duck->set_guid(value_node->get_guid()^synfig::GUID::hasher(0));
+
+ get_work_area()->add_duck(duck);
+
+ // Add the tangent1 duck
+ tduck=new WorkArea::Duck(bline_point.get_tangent1());
+ tduck->set_editable(true);
+ tduck->set_name(strprintf("%x-tangent1",value_node.get()));
+ tduck->set_origin(duck);
+ tduck->set_scalar(-0.33333333333333333);
+ tduck->set_tangent(true);
+ tduck->set_guid(value_node->get_guid()^synfig::GUID::hasher(3));
+ tduck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),value_node)
+ );
+ tduck->signal_user_click(2).connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),value_node)
+ );
+
+ // See if we need to add that duck to the previous bezier
+ if(bezier)
+ {
+ get_work_area()->add_duck(tduck);
+ bezier->p2=duck;
+ bezier->c2=tduck;
+
+ bezier->signal_user_click(2).connect(
+ sigc::bind(
+ sigc::mem_fun(
+ *this,
+ &studio::StateBLine_Context::popup_bezier_menu
+ ),
+ value_node
+ )
+ );
+
+ //get_work_area()->add_duck(bezier->c1);
+ //get_work_area()->add_duck(bezier->c2);
+ get_work_area()->add_bezier(bezier);
+
+ bezier=0;
+ }
+
+ // Now we see if we need to create a bezier
+ list<ValueNode_Const::Handle>::iterator next(iter);
+ next++;
+
+ // If our next iterator is the end, then we don't need
+ // to add a bezier.
+ //if(next==bline_point_list.end() && !loop_)
+ // continue;
+
+ bezier=new WorkArea::Bezier();
+
+ // Add the tangent2 duck
+ tduck=new WorkArea::Duck(bline_point.get_tangent2());
+ tduck->set_editable(true);
+ tduck->set_origin(duck);
+ tduck->set_scalar(0.33333333333333333);
+ tduck->set_tangent(true);
+ if(bline_point.get_split_tangent_flag())
+ {
+ tduck->set_name(strprintf("%x-tangent2",value_node.get()));
+ tduck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent2_change),value_node)
+ );
+ }
+ else
+ {
+ tduck->set_name(strprintf("%x-tangent1",value_node.get()));
+ tduck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),value_node)
+ );
+ }
+ tduck->set_guid(value_node->get_guid()^synfig::GUID::hasher(4));
+ tduck->signal_user_click(2).connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),value_node)
+ );
+
+ // Setup the next bezier
+ bezier->p1=duck;
+ bezier->c1=tduck;
+
+ get_work_area()->add_duck(tduck);
+ curr_duck=tduck;
+ }
+
+ // Add the loop, if requested
+ if(bezier && loop_)
+ {
+ curr_duck=0;
+ BLinePoint bline_point(bline_point_list.front()->get_value().get(BLinePoint()));
+
+ duck=new WorkArea::Duck(bline_point.get_vertex());
+ duck->set_editable(true);
+#ifndef DISTINGUISH_FIRST_DUCK
+ duck->set_type(Duck::TYPE_VERTEX);
+#endif
+ duck->set_name(strprintf("%x-vertex",bline_point_list.front().get()));
+ duck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_vertex_change),bline_point_list.front())
+ );
+ duck->signal_user_click(2).connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_vertex_menu),bline_point_list.front())
+ );
+ get_work_area()->add_duck(duck);
+
+ // Add the tangent1 duck
+ tduck=new WorkArea::Duck(bline_point.get_tangent1());
+ tduck->set_editable(true);
+ tduck->set_name(strprintf("%x-tangent1",bline_point_list.front().get()));
+ tduck->set_origin(duck);
+ tduck->set_scalar(-0.33333333333333333);
+ tduck->set_tangent(true);
+ tduck->signal_edited().connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),bline_point_list.front())
+ );
+ tduck->signal_user_click(2).connect(
+ sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),bline_point_list.front())
+ );
+ get_work_area()->add_duck(tduck);
+
+ bezier->p2=duck;
+ bezier->c2=tduck;
+
+ bezier->signal_user_click(2).connect(
+ sigc::bind(
+ sigc::mem_fun(
+ *this,
+ &studio::StateBLine_Context::popup_bezier_menu
+ ),
+ bline_point_list.front()
+ )
+ );
+
+ //get_work_area()->add_duck(bezier->c1);
+ get_work_area()->add_bezier(bezier);
+ }
+ if(bezier && !loop_)
+ {
+ duck=new WorkArea::Duck(bline_point.get_vertex());
+ duck->set_ignore(true);
+ duck->set_name("temp");
+
+ // Add the tangent1 duck
+ tduck=new WorkArea::Duck(Vector(0,0));
+ tduck->set_ignore(true);
+ tduck->set_name("ttemp");
+ tduck->set_origin(duck);
+ tduck->set_scalar(-0.33333333333333333);
+
+ tduck->set_tangent(true);
+ bezier->p2=duck;
+ bezier->c2=tduck;
+
+ get_work_area()->add_duck(bezier->p2);
+ //get_work_area()->add_duck(bezier->c2);
+ get_work_area()->add_bezier(bezier);
+
+ duck->set_guid(synfig::GUID());
+ tduck->set_guid(synfig::GUID());
+
+ next_duck=duck;
+ }
+
+ if(!button_down)
+ {
+ if(curr_duck)
+ {
+ if(next_duck)
+ {
+ curr_duck=next_duck;
+ next_duck=0;
+ }
+ }
+ }
+ get_work_area()->queue_draw();
+}
+
+
+bool
+StateBLine_Context::on_vertex_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
+{
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+ bline_point.set_vertex(point);
+ value_node->set_value(bline_point);
+ //refresh_ducks();
+ return true;
+}
+
+bool
+StateBLine_Context::on_tangent1_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
+{
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+ bline_point.set_tangent1(point);
+ value_node->set_value(bline_point);
+ //refresh_ducks();
+ return true;
+}
+
+bool
+StateBLine_Context::on_tangent2_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
+{
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+ bline_point.set_tangent2(point);
+ value_node->set_value(bline_point);
+ //refresh_ducks();
+ return true;
+}
+
+void
+StateBLine_Context::loop_bline()
+{
+ loop_=true;
+
+ refresh_ducks(false);
+}
+
+void
+StateBLine_Context::unloop_bline()
+{
+ loop_=false;
+
+ refresh_ducks(false);
+}
+
+void
+StateBLine_Context::popup_vertex_menu(synfig::ValueNode_Const::Handle value_node)
+{
+ menu.items().clear();
+
+ if(loop_)
+ {
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Unloop BLine"),
+ sigc::mem_fun(*this,&studio::StateBLine_Context::unloop_bline)
+ ));
+ } else {
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Loop BLine"),
+ sigc::mem_fun(*this,&studio::StateBLine_Context::loop_bline)
+ ));
+ }
+
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Delete Vertex"),
+ sigc::bind(
+ sigc::mem_fun(*this,&studio::StateBLine_Context::bline_delete_vertex),
+ value_node
+ )
+ ));
+
+ menu.popup(0,0);
+}
+
+void
+StateBLine_Context::popup_bezier_menu(float location, synfig::ValueNode_Const::Handle value_node)
+{
+ menu.items().clear();
+
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Insert Vertex"),
+ sigc::bind(
+ sigc::bind(
+ sigc::mem_fun(*this,&studio::StateBLine_Context::bline_insert_vertex),
+ location
+ ),
+ value_node
+ )
+ ));
+
+ menu.popup(0,0);
+}
+
+void
+StateBLine_Context::bline_insert_vertex(synfig::ValueNode_Const::Handle value_node, float origin)
+{
+ list<ValueNode_Const::Handle>::iterator iter;
+
+ for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
+ if(*iter==value_node)
+ {
+ BLinePoint bline_point;
+ BLinePoint next_bline_point((*iter)->get_value().get(BLinePoint()));
+ BLinePoint prev_bline_point;
+
+ list<ValueNode_Const::Handle>::iterator prev(iter);
+ if(iter==bline_point_list.begin())
+ {
+ assert(loop_);
+ prev = bline_point_list.end();
+ }
+ prev--;
+
+ prev_bline_point=(*prev)->get_value().get(BLinePoint());
+
+ etl::hermite<Vector> curve(prev_bline_point.get_vertex(),
+ next_bline_point.get_vertex(),
+ prev_bline_point.get_tangent2(),
+ next_bline_point.get_tangent1());
+ etl::derivative< etl::hermite<Vector> > deriv(curve);
+
+ bline_point.set_vertex(curve(origin));
+ bline_point.set_width((next_bline_point.get_width()-prev_bline_point.get_width())*origin+prev_bline_point.get_width());
+#ifdef ETL_FIXED_DERIVATIVE
+ bline_point.set_tangent1(deriv(origin)*std::min(1.0f-origin,origin));
+#else
+ bline_point.set_tangent1(-deriv(origin)*std::min(1.0f-origin,origin));
+#endif
+ bline_point.set_tangent2(bline_point.get_tangent1());
+ bline_point.set_split_tangent_flag(false);
+ bline_point.set_origin(origin);
+
+/*
+ bline_point.set_vertex((next_bline_point.get_vertex()+prev_bline_point.get_vertex())*0.5);
+ bline_point.set_width((next_bline_point.get_width()+prev_bline_point.get_width())*0.5);
+ bline_point.set_origin(origin);
+ bline_point.set_split_tangent_flag(false);
+ bline_point.set_tangent1((next_bline_point.get_vertex()-prev_bline_point.get_vertex())*0.5);
+*/
+
+ bline_point_list.insert(iter,ValueNode_Const::create(bline_point));
+ break;
+ }
+
+ if(iter==bline_point_list.end())
+ {
+ get_canvas_view()->get_ui_interface()->error(_("Unable to find where to insert vertex, internal error, please report this bug"));
+ }
+
+ refresh_ducks(false);
+}
+
+void
+StateBLine_Context::bline_delete_vertex(synfig::ValueNode_Const::Handle value_node)
+{
+ list<ValueNode_Const::Handle>::iterator iter;
+
+ for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
+ if(*iter==value_node)
+ {
+ bline_point_list.erase(iter);
+ break;
+ }
+ if(iter==bline_point_list.end())
+ {
+ get_canvas_view()->get_ui_interface()->error(_("Unable to remove vertex, internal error, please report this bug"));
+ }
+
+ refresh_ducks(false);
+}
+
+void
+StateBLine_Context::popup_handle_menu(synfig::ValueNode_Const::Handle value_node)
+{
+ menu.items().clear();
+
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+
+ if(bline_point.get_split_tangent_flag())
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Merge Tangents"),
+ sigc::bind(
+ sigc::mem_fun(*this,&studio::StateBLine_Context::bline_attach_handle),
+ value_node
+ )
+ ));
+ else
+ menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Split Tangents"),
+ sigc::bind(
+ sigc::mem_fun(*this,&studio::StateBLine_Context::bline_detach_handle),
+ value_node
+ )
+ ));
+
+ menu.popup(0,0);
+}
+
+void
+StateBLine_Context::bline_detach_handle(synfig::ValueNode_Const::Handle value_node)
+{
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+ bline_point.set_split_tangent_flag(true);
+ bline_point.set_tangent2(bline_point.get_tangent1());
+ value_node->set_value(bline_point);
+ refresh_ducks(false);
+}
+
+void
+StateBLine_Context::bline_attach_handle(synfig::ValueNode_Const::Handle value_node)
+{
+ BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
+ bline_point.set_tangent1((bline_point.get_tangent1()+bline_point.get_tangent2())*0.5);
+ bline_point.set_split_tangent_flag(false);
+ value_node->set_value(bline_point);
+ refresh_ducks(false);
+}