1 /* === S Y N F I G ========================================================= */
2 /*! \file state_rotate.cpp
3 ** \brief Template File
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2008 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 /* ========================================================================= */
24 /* === H E A D E R S ======================================================= */
33 #include <gtkmm/dialog.h>
34 #include <gtkmm/entry.h>
36 #include <synfig/valuenode_dynamiclist.h>
37 #include <synfigapp/action_system.h>
39 #include "state_rotate.h"
40 #include "state_normal.h"
41 #include "canvasview.h"
45 #include <synfigapp/action.h>
46 #include "event_mouse.h"
47 #include "event_layerclick.h"
49 #include "docks/dialog_tooloptions.h"
50 #include <gtkmm/optionmenu.h>
52 #include <synfig/angle.h>
53 #include <synfigapp/main.h>
59 /* === U S I N G =========================================================== */
63 using namespace synfig;
64 using namespace studio;
66 /* === M A C R O S ========================================================= */
69 #define EPSILON 0.0000001
72 /* === G L O B A L S ======================================================= */
74 StateRotate studio::state_rotate;
76 /* === C L A S S E S & S T R U C T S ======================================= */
78 class DuckDrag_Rotate : public DuckDrag_Base
81 synfig::Vector last_rotate;
82 synfig::Vector drag_offset;
83 synfig::Vector center;
89 std::vector<synfig::Vector> positions;
96 etl::handle<CanvasView> canvas_view_;
99 void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
100 bool end_duck_drag(Duckmatic* duckmatic);
101 void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
103 etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
107 class studio::StateRotate_Context : public sigc::trackable
109 etl::handle<CanvasView> canvas_view_;
110 CanvasView::IsWorking is_working;
112 synfigapp::Settings& settings;
114 etl::handle<DuckDrag_Rotate> duck_dragger_;
116 Gtk::Table options_table;
118 Gtk::CheckButton checkbutton_scale;
122 bool get_scale_flag()const { return checkbutton_scale.get_active(); }
123 void set_scale_flag(bool x) { return checkbutton_scale.set_active(x); refresh_scale_flag(); }
125 Smach::event_result event_stop_handler(const Smach::event& x);
126 Smach::event_result event_refresh_tool_options(const Smach::event& x);
128 void refresh_tool_options();
130 void refresh_scale_flag() { if(duck_dragger_)duck_dragger_->use_magnitude=get_scale_flag(); }
132 StateRotate_Context(CanvasView* canvas_view);
134 ~StateRotate_Context();
136 const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
137 etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
138 synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
139 WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
141 void load_settings();
142 void save_settings();
143 }; // END of class StateRotate_Context
145 /* === M E T H O D S ======================================================= */
147 StateRotate::StateRotate():
148 Smach::state<StateRotate_Context>("rotate")
150 insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateRotate_Context::event_refresh_tool_options));
151 insert(event_def(EVENT_STOP,&StateRotate_Context::event_stop_handler));
154 StateRotate::~StateRotate()
159 StateRotate_Context::load_settings()
163 SETTINGS_LOCALE_SAFE_AND_BACKUP
166 if(settings.get_value("rotate.scale",value) && value=="0")
167 set_scale_flag(false);
169 set_scale_flag(true);
170 SETTINGS_LOCALE_RESTORE
174 synfig::warning("State Rotate: Caught exception when attempting to load settings.");
179 StateRotate_Context::save_settings()
183 SETTINGS_LOCALE_SAFE_AND_BACKUP
184 settings.set_value("rotate.scale",get_scale_flag()?"1":"0");
185 SETTINGS_LOCALE_RESTORE
189 synfig::warning("State Rotate: Caught exception when attempting to save settings.");
193 StateRotate_Context::StateRotate_Context(CanvasView* canvas_view):
194 canvas_view_(canvas_view),
195 is_working(*canvas_view),
196 settings(synfigapp::Main::get_selected_input_device()->settings()),
197 duck_dragger_(new DuckDrag_Rotate()),
198 checkbutton_scale(_("Allow Scale"))
200 duck_dragger_->canvas_view_=get_canvas_view();
202 // Set up the tool options dialog
203 options_table.attach(*manage(new Gtk::Label(_("Rotate Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
204 options_table.attach(checkbutton_scale, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
206 checkbutton_scale.signal_toggled().connect(sigc::mem_fun(*this,&StateRotate_Context::refresh_scale_flag));
208 options_table.show_all();
209 refresh_tool_options();
210 //App::dialog_tool_options->set_widget(options_table);
211 App::dialog_tool_options->present();
213 get_work_area()->set_allow_layer_clicks(true);
214 get_work_area()->set_duck_dragger(duck_dragger_);
216 get_work_area()->set_cursor(Gdk::EXCHANGE);
217 // get_work_area()->reset_cursor();
219 App::toolbox->refresh();
222 refresh_scale_flag();
226 StateRotate_Context::refresh_tool_options()
228 App::dialog_tool_options->clear();
229 App::dialog_tool_options->set_widget(options_table);
230 App::dialog_tool_options->set_local_name(_("Rotate Tool"));
231 App::dialog_tool_options->set_name("rotate");
235 StateRotate_Context::event_refresh_tool_options(const Smach::event& /*x*/)
237 refresh_tool_options();
238 return Smach::RESULT_ACCEPT;
242 StateRotate_Context::event_stop_handler(const Smach::event& /*x*/)
245 return Smach::RESULT_OK;
248 StateRotate_Context::~StateRotate_Context()
252 get_work_area()->clear_duck_dragger();
253 get_work_area()->reset_cursor();
255 App::dialog_tool_options->clear();
257 App::toolbox->refresh();
263 DuckDrag_Rotate::DuckDrag_Rotate()
269 DuckDrag_Rotate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
271 last_rotate=Vector(1,1);
273 const DuckList selected_ducks(duckmatic->get_selected_ducks());
274 DuckList::const_iterator iter;
277 if(duckmatic->get_selected_ducks().size()<2)
285 drag_offset=duckmatic->find_duck(offset)->get_trans_point();
287 //snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
288 //snap=offset-drag_offset;
292 Point vmin(100000000,100000000);
293 Point vmax(-100000000,-100000000);
294 //std::set<etl::handle<Duck> >::iterator iter;
297 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
299 Point p((*iter)->get_trans_point());
300 vmin[0]=min(vmin[0],p[0]);
301 vmin[1]=min(vmin[1],p[1]);
302 vmax[0]=max(vmax[0],p[0]);
303 vmax[1]=max(vmax[1],p[1]);
304 positions.push_back(p);
306 center=(vmin+vmax)*0.5;
307 if((vmin-vmax).mag()<=EPSILON)
313 synfig::Vector vect(offset-center);
314 original_angle=Angle::tan(vect[1],vect[0]);
315 original_mag=vect.mag();
320 DuckDrag_Rotate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
325 //std::set<etl::handle<Duck> >::iterator iter;
326 synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-center+snap);
328 const DuckList selected_ducks(duckmatic->get_selected_ducks());
329 DuckList::const_iterator iter;
334 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
336 if((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION)continue;
338 Vector p(positions[i]);
342 (*iter)->set_trans_point(p);
344 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
346 if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
348 Vector p(positions[i]);
352 (*iter)->set_trans_point(p);
357 Angle::tan angle(vect[1],vect[0]);
358 angle=original_angle-angle;
359 Real mag(vect.mag()/original_mag);
360 Real sine(Angle::sin(angle).get());
361 Real cosine(Angle::cos(angle).get());
364 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
366 if((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION)continue;
368 Vector x(positions[i]-center),p;
370 p[0]=cosine*x[0]+sine*x[1];
371 p[1]=-sine*x[0]+cosine*x[1];
372 if(use_magnitude)p*=mag;
374 (*iter)->set_trans_point(p);
376 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
378 if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
380 Vector x(positions[i]-center),p;
382 p[0]=cosine*x[0]+sine*x[1];
383 p[1]=-sine*x[0]+cosine*x[1];
384 if(use_magnitude)p*=mag;
386 (*iter)->set_trans_point(p);
394 DuckDrag_Rotate::end_duck_drag(Duckmatic* duckmatic)
396 if(bad_drag)return false;
399 synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Move Duck"));
400 duckmatic->signal_edited_selected_ducks();
404 synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Rotate Ducks"));
406 if((last_rotate-Vector(1,1)).mag()>0.0001)
408 duckmatic->signal_edited_selected_ducks();
413 duckmatic->signal_user_click_selected_ducks(0);