Release synfigstudio_0_61_07_rc1
[synfig.git] / synfig-studio / tags / synfigstudio_0_61_07_rc1 / src / gtkmm / state_polygon.cpp
diff --git a/synfig-studio/tags/synfigstudio_0_61_07_rc1/src/gtkmm/state_polygon.cpp b/synfig-studio/tags/synfigstudio_0_61_07_rc1/src/gtkmm/state_polygon.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file state_polygon.cpp
+**     \brief Template File
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+**     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 "state_polygon.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 <synfigapp/main.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 ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+StatePolygon studio::state_polygon;
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+class studio::StatePolygon_Context : public sigc::trackable
+{
+       etl::handle<CanvasView> canvas_view_;
+       CanvasView::IsWorking is_working;
+
+       bool prev_table_status;
+       bool prev_workarea_layer_status_;
+
+       Gtk::Menu menu;
+
+       Duckmatic::Push duckmatic_push;
+
+       std::list<synfig::Point> polygon_point_list;
+       synfigapp::Settings& settings;
+
+
+       bool on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter);
+
+
+       void popup_handle_menu(synfigapp::ValueDesc value_desc);
+
+
+       void refresh_ducks();
+
+       Gtk::Table options_table;
+       Gtk::Entry entry_id;
+       Gtk::Button button_make;
+
+public:
+       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_refresh_tool_options(const Smach::event& x);
+       void refresh_tool_options();
+
+       StatePolygon_Context(CanvasView* canvas_view);
+
+       ~StatePolygon_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();}
+
+       //void on_user_click(synfig::Point point);
+       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 run();
+};     // END of class StatePolygon_Context
+
+/* === M E T H O D S ======================================================= */
+
+StatePolygon::StatePolygon():
+       Smach::state<StatePolygon_Context>("polygon")
+{
+       insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StatePolygon_Context::event_layer_selection_changed_handler));
+       insert(event_def(EVENT_STOP,&StatePolygon_Context::event_stop_handler));
+       insert(event_def(EVENT_REFRESH,&StatePolygon_Context::event_refresh_handler));
+       insert(event_def(EVENT_REFRESH_DUCKS,&StatePolygon_Context::event_refresh_handler));
+       insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StatePolygon_Context::event_mouse_click_handler));
+       insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StatePolygon_Context::event_refresh_tool_options));
+}
+
+StatePolygon::~StatePolygon()
+{
+}
+
+void
+StatePolygon_Context::load_settings()
+{
+       String value;
+
+       if(settings.get_value("polygon.id",value))
+               set_id(value);
+       else
+               set_id("Polygon");
+}
+
+void
+StatePolygon_Context::save_settings()
+{
+       settings.set_value("polygon.id",get_id().c_str());
+}
+
+void
+StatePolygon_Context::reset()
+{
+       polygon_point_list.clear();
+       refresh_ducks();
+}
+
+void
+StatePolygon_Context::increment_id()
+{
+       String id(get_id());
+       int number=1;
+       int digits=0;
+
+       if(id.empty())
+               id="Polygon";
+
+       // 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++)while(false);
+
+               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);
+}
+
+StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
+       canvas_view_(canvas_view),
+       is_working(*canvas_view),
+       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(),
+       button_make(_("Make"))
+{
+       egress_on_selection_change=true;
+       load_settings();
+
+       // Set up the tool options dialog
+       //options_table.attach(*manage(new Gtk::Label(_("Polygon 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(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
+       button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_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();
+
+       get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
+
+       // 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::StatePolygon_Context::on_user_click));
+
+       App::toolbox->refresh();
+}
+
+void
+StatePolygon_Context::refresh_tool_options()
+{
+       App::dialog_tool_options->clear();
+       App::dialog_tool_options->set_widget(options_table);
+
+       App::dialog_tool_options->set_local_name(_("Polygon Tool"));
+       App::dialog_tool_options->set_name("polygon");
+
+       App::dialog_tool_options->add_button(
+               Gtk::StockID("gtk-execute"),
+               _("Make Polygon")
+       )->signal_clicked().connect(
+               sigc::mem_fun(
+                       *this,
+                       &StatePolygon_Context::run
+               )
+       );
+
+       App::dialog_tool_options->add_button(
+               Gtk::StockID("gtk-clear"),
+               _("Clear current Polygon")
+       )->signal_clicked().connect(
+               sigc::mem_fun(
+                       *this,
+                       &StatePolygon_Context::reset
+               )
+       );
+}
+
+Smach::event_result
+StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
+{
+       refresh_tool_options();
+       return Smach::RESULT_ACCEPT;
+}
+
+StatePolygon_Context::~StatePolygon_Context()
+{
+       run();
+
+       save_settings();
+       // Restore layer clicking
+       get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
+
+       App::dialog_tool_options->clear();
+
+       get_canvas_view()->work_area->reset_cursor();
+
+       // 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();
+
+       App::toolbox->refresh();
+}
+
+Smach::event_result
+StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
+{
+       synfig::info("STATE RotoPolygon: Received Stop Event");
+       //throw Smach::egress_exception();
+       reset();
+       return Smach::RESULT_ACCEPT;
+
+}
+
+Smach::event_result
+StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
+{
+       synfig::info("STATE RotoPolygon: Received Refresh Event");
+       refresh_ducks();
+       return Smach::RESULT_ACCEPT;
+}
+
+void
+StatePolygon_Context::run()
+{
+       if(polygon_point_list.empty())
+               return;
+
+       if(polygon_point_list.size()<3)
+       {
+               get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
+               return;
+       }
+               Layer::Handle layer;
+               Canvas::Handle canvas(get_canvas_view()->get_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::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
+                       synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
+
+                       Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
+                       layer->set_description(get_id());
+                       get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
+
+                       layer->disconnect_dynamic_param("vector_list");
+                       if(!layer->set_param("vector_list",polygon_point_list))
+                       {
+                               group.cancel();
+                               get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
+                               return;
+                       }
+
+                       {
+                               synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
+                               synfigapp::ValueDesc value_desc(layer,"vector_list");
+                               action->set_param("canvas",get_canvas());
+                               action->set_param("canvas_interface",get_canvas_interface());
+                               action->set_param("value_desc",value_desc);
+                               action->set_param("type","dynamic_list");
+                               if(!get_canvas_interface()->get_instance()->perform_action(action))
+                               {
+                                       group.cancel();
+                                       get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
+                                       return;
+                               }
+                       }
+                       egress_on_selection_change=false;
+                       get_canvas_interface()->get_selection_manager()->clear_selected_layers();
+                       get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
+                       egress_on_selection_change=true;
+                       //get_canvas_interface()->signal_dirty_preview()();
+               }
+/*
+               else
+               {
+                       ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
+                       std::string valuenode_name="Poly";
+                       while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
+                               if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
+                                       return true;
+               }
+*/
+       reset();
+       increment_id();
+}
+
+Smach::event_result
+StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
+{
+       synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
+       const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
+       switch(event.button)
+       {
+       case BUTTON_LEFT:
+               polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
+               refresh_ducks();
+               return Smach::RESULT_ACCEPT;
+
+       case BUTTON_RIGHT: // Intercept the right-button click to short-circut the pop-up menu
+               return Smach::RESULT_ACCEPT;
+
+       default:
+               return Smach::RESULT_OK;
+       }
+}
+
+
+void
+StatePolygon_Context::refresh_ducks()
+{
+       get_work_area()->clear_ducks();
+
+       if(polygon_point_list.empty()) return;
+
+       std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
+
+       etl::handle<WorkArea::Duck> duck;
+       duck=new WorkArea::Duck(*iter);
+       duck->set_editable(true);
+       duck->signal_edited().connect(
+               sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
+       );
+       duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
+
+       get_work_area()->add_duck(duck);
+
+       for(++iter;iter!=polygon_point_list.end();++iter)
+       {
+               etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
+               bezier->p1=bezier->c1=duck;
+
+               duck=new WorkArea::Duck(*iter);
+               duck->set_editable(true);
+               duck->set_name(strprintf("%x",&*iter));
+               duck->signal_edited().connect(
+                       sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
+               );
+
+               get_work_area()->add_duck(duck);
+
+               bezier->p2=bezier->c2=duck;
+               get_work_area()->add_bezier(bezier);
+       }
+       get_work_area()->queue_draw();
+}
+
+
+bool
+StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
+{
+       *iter=point;
+       return true;
+}