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 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include <gtkmm/dialog.h>
  33 #include <gtkmm/entry.h>
  34
  35 #include <synfig/valuenode_dynamiclist.h>
  36 #include <synfigapp/action_system.h>
  37
  38 #include "state_mirror.h"
  39 #include "../canvasview.h"
  40 #include "../workarea.h"
  41 #include "../app.h"
  42
  43 #include <synfigapp/action.h>
  44 #include "../event_mouse.h"
  45 #include "../event_layerclick.h"
  46 #include "../toolbox.h"
  47 #include "../dialog_tooloptions.h"
  48 #include <gtkmm/optionmenu.h>
  49 #include "../duck.h"
  50 #include <synfigapp/main.h>
  51
  52 #include "../general.h"
  53
  54 #endif
  55
  56 /* === U S I N G =========================================================== */
  57
  58 using namespace std;
  59 using namespace etl;
  60 using namespace synfig;
  61 using namespace studio;
  62
  63 /* === M A C R O S ========================================================= */
  64
  65 enum Axis {
  66         AXIS_X,
  67         AXIS_Y
  68 } ;
  69
  70 /* === G L O B A L S ======================================================= */
  71
  72 StateMirror studio::state_mirror;
  73
  74 /* === C L A S S E S & S T R U C T S ======================================= */
  75
  76 class DuckDrag_Mirror : public DuckDrag_Base
  77 {
  78         synfig::Vector center;
  79
  80         std::vector<synfig::Vector> positions;
  81
  82 public:
  83         Axis axis;
  84
  85         DuckDrag_Mirror();
  86         void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
  87         bool end_duck_drag(Duckmatic* duckmatic);
  88         void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
  89 };
  90
  91 class studio::StateMirror_Context : public sigc::trackable
  92 {
  93         etl::handle<CanvasView> canvas_view_;
  94
  95         synfigapp::Settings& settings;
  96
  97         sigc::connection keypress_connect;
  98         sigc::connection keyrelease_connect;
  99
 100         etl::handle<DuckDrag_Mirror> duck_dragger_;
 101
 102         Gtk::Table options_table;
 103
 104         Gtk::RadioButton::Group radiobutton_group;
 105         Gtk::RadioButton radiobutton_axis_x;
 106         Gtk::RadioButton radiobutton_axis_y;
 107
 108 public:
 109
 110         Axis get_axis()const { return radiobutton_axis_x.get_active()?AXIS_X:AXIS_Y; }
 111         void set_axis(Axis a)
 112         {
 113                 if(a==AXIS_X)
 114                         radiobutton_axis_x.set_active(true);
 115                 else
 116                         radiobutton_axis_y.set_active(true);
 117
 118                 duck_dragger_->axis=get_axis();
 119         }
 120
 121         void update_axes()
 122         {
 123                 duck_dragger_->axis=get_axis();
 124         }
 125
 126         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 127
 128         void refresh_tool_options();
 129
 130         StateMirror_Context(CanvasView* canvas_view);
 131
 132         ~StateMirror_Context();
 133
 134         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 135         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 136         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 137         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 138
 139         void load_settings();
 140         void save_settings();
 141
 142         bool key_event(GdkEventKey *event);
 143 };      // END of class StateMirror_Context
 144
 145 /* === M E T H O D S ======================================================= */
 146
 147 StateMirror::StateMirror():
 148         Smach::state<StateMirror_Context>("mirror")
 149 {
 150         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateMirror_Context::event_refresh_tool_options));
 151 }
 152
 153 StateMirror::~StateMirror()
 154 {
 155 }
 156
 157 void
 158 StateMirror_Context::load_settings()
 159 {
 160         String value;
 161
 162         settings.get_value("mirror.axis",value);
 163         set_axis((Axis)atoi(value.c_str()));
 164 }
 165
 166 void
 167 StateMirror_Context::save_settings()
 168 {
 169         settings.set_value("mirror.lock_aspect",strprintf("%d",(int)get_axis()));
 170 }
 171
 172 StateMirror_Context::StateMirror_Context(CanvasView* canvas_view):
 173         canvas_view_(canvas_view),
 174         settings(synfigapp::Main::get_selected_input_device()->settings()),
 175         duck_dragger_(new DuckDrag_Mirror()),
 176         radiobutton_axis_x(radiobutton_group,_("Horizontal")),
 177         radiobutton_axis_y(radiobutton_group,_("Vertical"))
 178 {
 179         // Set up the tool options dialog
 180         options_table.attach(*manage(new Gtk::Label(_("Mirror Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 181         options_table.attach(radiobutton_axis_x, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 182         options_table.attach(radiobutton_axis_y, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 183         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);
 184
 185         radiobutton_axis_x.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 186         radiobutton_axis_y.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 187
 188         options_table.show_all();
 189         refresh_tool_options();
 190         App::dialog_tool_options->present();
 191
 192         get_work_area()->set_allow_layer_clicks(true);
 193         get_work_area()->set_duck_dragger(duck_dragger_);
 194
 195         keypress_connect=get_work_area()->signal_key_press_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_event),false);
 196         keyrelease_connect=get_work_area()->signal_key_release_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_event),false);
 197
 198 //      get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 199         get_canvas_view()->work_area->reset_cursor();
 200
 201         App::toolbox->refresh();
 202
 203         set_axis(AXIS_X);
 204         load_settings();
 205 }
 206
 207 bool
 208 StateMirror_Context::key_event(GdkEventKey *event)
 209 {
 210         if (event->keyval==GDK_Shift_L || event->keyval==GDK_Shift_R )
 211                 set_axis(get_axis()==AXIS_X ? AXIS_Y:AXIS_X);
 212
 213         return false; //Pass on the event to other handlers, just in case
 214 }
 215
 216 void
 217 StateMirror_Context::refresh_tool_options()
 218 {
 219         App::dialog_tool_options->clear();
 220         App::dialog_tool_options->set_widget(options_table);
 221         App::dialog_tool_options->set_local_name(_("Mirror Tool"));
 222         App::dialog_tool_options->set_name("mirror");
 223 }
 224
 225 Smach::event_result
 226 StateMirror_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 227 {
 228         refresh_tool_options();
 229         return Smach::RESULT_ACCEPT;
 230 }
 231
 232
 233 StateMirror_Context::~StateMirror_Context()
 234 {
 235         save_settings();
 236
 237         get_work_area()->clear_duck_dragger();
 238         get_canvas_view()->work_area->reset_cursor();
 239
 240         keypress_connect.disconnect();
 241         keyrelease_connect.disconnect();
 242
 243         App::dialog_tool_options->clear();
 244
 245         App::toolbox->refresh();
 246 }
 247
 248 DuckDrag_Mirror::DuckDrag_Mirror():
 249         axis(AXIS_X)
 250 {
 251 }
 252
 253 #ifndef EPSILON
 254 #define EPSILON 0.0000001
 255 #endif
 256
 257 void
 258 DuckDrag_Mirror::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& /*offset*/)
 259 {
 260         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 261         DuckList::const_iterator iter;
 262
 263         positions.clear();
 264         int i;
 265         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 266         {
 267                 Point p((*iter)->get_trans_point());
 268                 positions.push_back(p);
 269         }
 270
 271 }
 272
 273 void
 274 DuckDrag_Mirror::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 275 {
 276         center=vector;
 277         int i;
 278
 279         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 280         DuckList::const_iterator iter;
 281
 282         Time time(duckmatic->get_time());
 283
 284         // do the Vertex and Position ducks first
 285         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 286                 if ((*iter)->get_type() == Duck::TYPE_VERTEX ||
 287                         (*iter)->get_type() == Duck::TYPE_POSITION)
 288                 {
 289                         Vector p(positions[i]);
 290
 291                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 292                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 293
 294                         (*iter)->set_trans_point(p, time);
 295                 }
 296
 297         // then do the other ducks
 298         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 299                 if ((*iter)->get_type() != Duck::TYPE_VERTEX &&
 300                         (*iter)->get_type() != Duck::TYPE_POSITION)
 301                 {
 302                         // we don't need to mirror radius ducks - they're one-dimensional
 303                         if ((*iter)->is_radius())
 304                                 continue;
 305
 306                         Vector p(positions[i]);
 307
 308                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 309                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 310
 311                         (*iter)->set_trans_point(p, time);
 312                 }
 313 }
 314
 315 bool
 316 DuckDrag_Mirror::end_duck_drag(Duckmatic* duckmatic)
 317 {
 318         duckmatic->signal_edited_selected_ducks();
 319         return true;
 320 }