synfig-studio/src/gtkmm/mod_mirror/state_mirror.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_mirror.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2009 Nikita Kitaev
  10 **
  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.
  15 **
  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.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include <gtkmm/dialog.h>
  34 #include <gtkmm/entry.h>
  35
  36 #include <synfig/valuenode_dynamiclist.h>
  37 #include <synfigapp/action_system.h>
  38
  39 #include "state_mirror.h"
  40 #include "../state_normal.h"
  41 #include "../canvasview.h"
  42 #include "../workarea.h"
  43 #include "../app.h"
  44
  45 #include <synfigapp/action.h>
  46 #include "../event_mouse.h"
  47 #include "../event_layerclick.h"
  48 #include "../toolbox.h"
  49 #include "../dialog_tooloptions.h"
  50 #include <gtkmm/optionmenu.h>
  51 #include "../duck.h"
  52 #include <synfigapp/main.h>
  53
  54 #include "../general.h"
  55
  56 #endif
  57
  58 /* === U S I N G =========================================================== */
  59
  60 using namespace std;
  61 using namespace etl;
  62 using namespace synfig;
  63 using namespace studio;
  64
  65 /* === M A C R O S ========================================================= */
  66
  67 enum Axis {
  68         AXIS_X,
  69         AXIS_Y
  70 } ;
  71
  72 /* === G L O B A L S ======================================================= */
  73
  74 StateMirror studio::state_mirror;
  75
  76 /* === C L A S S E S & S T R U C T S ======================================= */
  77
  78 class DuckDrag_Mirror : public DuckDrag_Base
  79 {
  80         synfig::Vector center;
  81
  82         std::vector<synfig::Vector> positions;
  83
  84 public:
  85         Axis axis;
  86
  87         DuckDrag_Mirror();
  88         void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
  89         bool end_duck_drag(Duckmatic* duckmatic);
  90         void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
  91 };
  92
  93 class studio::StateMirror_Context : public sigc::trackable
  94 {
  95         etl::handle<CanvasView> canvas_view_;
  96         CanvasView::IsWorking is_working;
  97
  98         synfigapp::Settings& settings;
  99
 100         sigc::connection keypress_connect;
 101         sigc::connection keyrelease_connect;
 102
 103         etl::handle<DuckDrag_Mirror> duck_dragger_;
 104
 105         Gtk::Table options_table;
 106
 107         Gtk::RadioButton::Group radiobutton_group;
 108         Gtk::RadioButton radiobutton_axis_x;
 109         Gtk::RadioButton radiobutton_axis_y;
 110
 111 public:
 112
 113         Axis get_axis()const { return radiobutton_axis_x.get_active()?AXIS_X:AXIS_Y; }
 114         void set_axis(Axis a)
 115         {
 116                 if(a==AXIS_X)
 117                         radiobutton_axis_x.set_active(true);
 118                 else
 119                         radiobutton_axis_y.set_active(true);
 120
 121                 duck_dragger_->axis=get_axis();
 122         }
 123
 124         void update_axes()
 125         {
 126                 duck_dragger_->axis=get_axis();
 127         }
 128
 129         Smach::event_result event_stop_handler(const Smach::event& x);
 130         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 131
 132         void refresh_tool_options();
 133
 134         StateMirror_Context(CanvasView* canvas_view);
 135
 136         ~StateMirror_Context();
 137
 138         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 139         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 140         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 141         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 142
 143         void load_settings();
 144         void save_settings();
 145
 146         bool key_event(GdkEventKey *event);
 147 };      // END of class StateMirror_Context
 148
 149 /* === M E T H O D S ======================================================= */
 150
 151 StateMirror::StateMirror():
 152         Smach::state<StateMirror_Context>("mirror")
 153 {
 154         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateMirror_Context::event_refresh_tool_options));
 155         insert(event_def(EVENT_STOP,&StateMirror_Context::event_stop_handler));
 156 }
 157
 158 StateMirror::~StateMirror()
 159 {
 160 }
 161
 162 void
 163 StateMirror_Context::load_settings()
 164 {
 165         String value;
 166
 167         settings.get_value("mirror.axis",value);
 168         set_axis((Axis)atoi(value.c_str()));
 169 }
 170
 171 void
 172 StateMirror_Context::save_settings()
 173 {
 174         settings.set_value("mirror.lock_aspect",strprintf("%d",(int)get_axis()));
 175 }
 176
 177 StateMirror_Context::StateMirror_Context(CanvasView* canvas_view):
 178         canvas_view_(canvas_view),
 179         is_working(*canvas_view),
 180         settings(synfigapp::Main::get_selected_input_device()->settings()),
 181         duck_dragger_(new DuckDrag_Mirror()),
 182         radiobutton_axis_x(radiobutton_group,_("Horizontal")),
 183         radiobutton_axis_y(radiobutton_group,_("Vertical"))
 184 {
 185         // Set up the tool options dialog
 186         options_table.attach(*manage(new Gtk::Label(_("Mirror Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 187         options_table.attach(radiobutton_axis_x, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 188         options_table.attach(radiobutton_axis_y, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 189         options_table.attach(*manage(new Gtk::Label(_("(Shift key toggles axis)"))), 0, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 190
 191         radiobutton_axis_x.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 192         radiobutton_axis_y.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 193
 194         options_table.show_all();
 195         refresh_tool_options();
 196         App::dialog_tool_options->present();
 197
 198         get_work_area()->set_allow_layer_clicks(true);
 199         get_work_area()->set_duck_dragger(duck_dragger_);
 200
 201         keypress_connect=get_work_area()->signal_key_press_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_event),false);
 202         keyrelease_connect=get_work_area()->signal_key_release_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_event),false);
 203
 204 //      get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 205         get_canvas_view()->work_area->reset_cursor();
 206
 207         App::toolbox->refresh();
 208
 209         set_axis(AXIS_X);
 210         load_settings();
 211 }
 212
 213 bool
 214 StateMirror_Context::key_event(GdkEventKey *event)
 215 {
 216         if (event->keyval==GDK_Shift_L || event->keyval==GDK_Shift_R )
 217                 set_axis(get_axis()==AXIS_X ? AXIS_Y:AXIS_X);
 218
 219         return false; //Pass on the event to other handlers, just in case
 220 }
 221
 222 void
 223 StateMirror_Context::refresh_tool_options()
 224 {
 225         App::dialog_tool_options->clear();
 226         App::dialog_tool_options->set_widget(options_table);
 227         App::dialog_tool_options->set_local_name(_("Mirror Tool"));
 228         App::dialog_tool_options->set_name("mirror");
 229 }
 230
 231 Smach::event_result
 232 StateMirror_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 233 {
 234         refresh_tool_options();
 235         return Smach::RESULT_ACCEPT;
 236 }
 237
 238 Smach::event_result
 239 StateMirror_Context::event_stop_handler(const Smach::event& /*x*/)
 240 {
 241         throw &state_normal;
 242         return Smach::RESULT_OK;
 243 }
 244
 245 StateMirror_Context::~StateMirror_Context()
 246 {
 247         save_settings();
 248
 249         get_work_area()->clear_duck_dragger();
 250         get_canvas_view()->work_area->reset_cursor();
 251
 252         keypress_connect.disconnect();
 253         keyrelease_connect.disconnect();
 254
 255         App::dialog_tool_options->clear();
 256
 257         App::toolbox->refresh();
 258 }
 259
 260 DuckDrag_Mirror::DuckDrag_Mirror():
 261         axis(AXIS_X)
 262 {
 263 }
 264
 265 #ifndef EPSILON
 266 #define EPSILON 0.0000001
 267 #endif
 268
 269 void
 270 DuckDrag_Mirror::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& /*offset*/)
 271 {
 272         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 273         DuckList::const_iterator iter;
 274
 275         positions.clear();
 276         int i;
 277         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 278         {
 279                 Point p((*iter)->get_trans_point());
 280                 positions.push_back(p);
 281         }
 282
 283 }
 284
 285 void
 286 DuckDrag_Mirror::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 287 {
 288         center=vector;
 289         int i;
 290
 291         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 292         DuckList::const_iterator iter;
 293
 294         Time time(duckmatic->get_time());
 295
 296         // do the Vertex and Position ducks first
 297         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 298                 if ((*iter)->get_type() == Duck::TYPE_VERTEX ||
 299                         (*iter)->get_type() == Duck::TYPE_POSITION)
 300                 {
 301                         Vector p(positions[i]);
 302
 303                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 304                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 305
 306                         (*iter)->set_trans_point(p);
 307                 }
 308
 309         // then do the other ducks
 310         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 311                 if ((*iter)->get_type() != Duck::TYPE_VERTEX &&
 312                         (*iter)->get_type() != Duck::TYPE_POSITION)
 313                 {
 314                         // we don't need to mirror radius ducks - they're one-dimensional
 315                         if ((*iter)->is_radius())
 316                                 continue;
 317
 318                         Vector p(positions[i]);
 319
 320                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 321                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 322
 323                         (*iter)->set_trans_point(p);
 324                 }
 325 }
 326
 327 bool
 328 DuckDrag_Mirror::end_duck_drag(Duckmatic* duckmatic)
 329 {
 330         duckmatic->signal_edited_selected_ducks();
 331         return true;
 332 }