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