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         etl::handle<DuckDrag_Mirror> duck_dragger_;
  99
 100         Gtk::Table options_table;
 101
 102
 103         sigc::connection keypress_connect;
 104         sigc::connection keyrelease_connect;
 105         bool shift_is_pressed;
 106         Gtk::RadioButton::Group radiobutton_group;
 107         Gtk::RadioButton radiobutton_axis_x;
 108         Gtk::RadioButton radiobutton_axis_y;
 109
 110 public:
 111
 112         Axis get_axis()const { return radiobutton_axis_x.get_active()?AXIS_X:AXIS_Y; }
 113         void set_axis(Axis a)
 114         {
 115                 if(a==AXIS_X)
 116                         radiobutton_axis_x.set_active(true);
 117                 else
 118                         radiobutton_axis_y.set_active(true);
 119
 120                 duck_dragger_->axis=get_axis();
 121         }
 122
 123         void update_axes()
 124         {
 125                 duck_dragger_->axis=get_axis();
 126                 get_work_area()->set_cursor(get_axis() == AXIS_X?Gdk::SB_H_DOUBLE_ARROW:Gdk::SB_V_DOUBLE_ARROW);
 127         }
 128
 129
 130
 131
 132         Smach::event_result event_stop_handler(const Smach::event& x);
 133         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 134         Smach::event_result event_mouse_motion_handler(const Smach::event& x);
 135
 136         void refresh_tool_options();
 137
 138         StateMirror_Context(CanvasView* canvas_view);
 139
 140         ~StateMirror_Context();
 141
 142         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 143         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 144         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 145         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 146
 147         bool key_press_event(GdkEventKey *event);
 148         bool key_release_event(GdkEventKey *event);
 149
 150
 151 };      // END of class StateMirror_Context
 152
 153 /* === M E T H O D S ======================================================= */
 154
 155 StateMirror::StateMirror():
 156         Smach::state<StateMirror_Context>("mirror")
 157 {
 158         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateMirror_Context::event_refresh_tool_options));
 159         insert(event_def(EVENT_STOP,&StateMirror_Context::event_stop_handler));
 160         insert(event_def(EVENT_WORKAREA_MOUSE_MOTION,           &StateMirror_Context::event_mouse_motion_handler));
 161         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,      &StateMirror_Context::event_mouse_motion_handler));
 162 }
 163
 164 StateMirror::~StateMirror()
 165 {
 166 }
 167
 168 StateMirror_Context::StateMirror_Context(CanvasView* canvas_view):
 169         canvas_view_(canvas_view),
 170         is_working(*canvas_view),
 171         duck_dragger_(new DuckDrag_Mirror()),
 172         radiobutton_axis_x(radiobutton_group,_("Horizontal")),
 173         radiobutton_axis_y(radiobutton_group,_("Vertical"))
 174 {
 175         // Set up the tool options dialog
 176         options_table.attach(*manage(new Gtk::Label(_("Mirror Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 177         options_table.attach(radiobutton_axis_x, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 178         options_table.attach(radiobutton_axis_y, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 179         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);
 180
 181         radiobutton_axis_x.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 182         radiobutton_axis_y.signal_toggled().connect(sigc::mem_fun(*this,&StateMirror_Context::update_axes));
 183         shift_is_pressed=false;
 184         keypress_connect=get_work_area()->signal_key_press_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_press_event),false);
 185         keyrelease_connect=get_work_area()->signal_key_release_event().connect(sigc::mem_fun(*this,&StateMirror_Context::key_release_event),false);
 186
 187         options_table.show_all();
 188         refresh_tool_options();
 189         App::dialog_tool_options->present();
 190
 191         get_work_area()->set_allow_layer_clicks(true);
 192         get_work_area()->set_duck_dragger(duck_dragger_);
 193
 194         get_work_area()->set_cursor(Gdk::SB_H_DOUBLE_ARROW);
 195 //      get_work_area()->reset_cursor();
 196
 197         App::toolbox->refresh();
 198
 199         set_axis(AXIS_Y);
 200 }
 201
 202 bool
 203 StateMirror_Context::key_press_event(GdkEventKey *event)
 204 {
 205         if (event->keyval==GDK_Shift_L || event->keyval==GDK_Shift_R )
 206         {
 207                 if (shift_is_pressed) return false;
 208                 shift_is_pressed=true;
 209                 set_axis(get_axis()==AXIS_X ? AXIS_Y:AXIS_X);
 210                 update_axes();
 211         }
 212
 213         return false; //Pass on the event to other handlers, just in case
 214 }
 215
 216 bool
 217 StateMirror_Context::key_release_event(GdkEventKey *event)
 218 {
 219         if (event->keyval==GDK_Shift_L || event->keyval==GDK_Shift_R )
 220         {
 221                 if (!shift_is_pressed) return false;
 222                 shift_is_pressed = false;
 223                 set_axis(get_axis()==AXIS_X ? AXIS_Y:AXIS_X);
 224                 update_axes();
 225         }
 226
 227         return false; //Pass on the event to other handlers, just in case
 228 }
 229
 230 void
 231 StateMirror_Context::refresh_tool_options()
 232 {
 233         App::dialog_tool_options->clear();
 234         App::dialog_tool_options->set_widget(options_table);
 235         App::dialog_tool_options->set_local_name(_("Mirror Tool"));
 236         App::dialog_tool_options->set_name("mirror");
 237 }
 238
 239 Smach::event_result
 240 StateMirror_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 241 {
 242         refresh_tool_options();
 243         return Smach::RESULT_ACCEPT;
 244 }
 245
 246 Smach::event_result
 247 StateMirror_Context::event_stop_handler(const Smach::event& /*x*/)
 248 {
 249         throw &state_normal;
 250         return Smach::RESULT_OK;
 251 }
 252
 253 Smach::event_result
 254 StateMirror_Context::event_mouse_motion_handler(const Smach::event& x)
 255 {
 256         // synfig::info("STATE NORMAL: Received mouse button down Event");
 257
 258         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 259         bool shift_state = event.modifier&GDK_SHIFT_MASK;
 260         if (shift_state != shift_is_pressed)
 261         {
 262                 shift_is_pressed = !shift_is_pressed;
 263                 set_axis(get_axis()==AXIS_X ? AXIS_Y:AXIS_X);
 264         }
 265
 266         return Smach::RESULT_OK;
 267 }
 268
 269 StateMirror_Context::~StateMirror_Context()
 270 {
 271         get_work_area()->clear_duck_dragger();
 272         get_work_area()->reset_cursor();
 273
 274         keypress_connect.disconnect();
 275         keyrelease_connect.disconnect();
 276
 277         App::dialog_tool_options->clear();
 278
 279         App::toolbox->refresh();
 280 }
 281
 282 DuckDrag_Mirror::DuckDrag_Mirror():
 283         axis(AXIS_X)
 284 {
 285 }
 286
 287 #ifndef EPSILON
 288 #define EPSILON 0.0000001
 289 #endif
 290
 291 void
 292 DuckDrag_Mirror::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& /*offset*/)
 293 {
 294         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 295         DuckList::const_iterator iter;
 296
 297         positions.clear();
 298         int i;
 299         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 300         {
 301                 Point p((*iter)->get_trans_point());
 302                 positions.push_back(p);
 303         }
 304
 305 }
 306
 307 void
 308 DuckDrag_Mirror::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 309 {
 310         center=vector;
 311         int i;
 312
 313         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 314         DuckList::const_iterator iter;
 315
 316         Time time(duckmatic->get_time());
 317
 318         // do the Vertex and Position ducks first
 319         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 320                 if ((*iter)->get_type() == Duck::TYPE_VERTEX ||
 321                         (*iter)->get_type() == Duck::TYPE_POSITION)
 322                 {
 323                         Vector p(positions[i]);
 324
 325                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 326                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 327
 328                         (*iter)->set_trans_point(p);
 329                 }
 330
 331         // then do the other ducks
 332         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 333                 if ((*iter)->get_type() != Duck::TYPE_VERTEX &&
 334                         (*iter)->get_type() != Duck::TYPE_POSITION)
 335                 {
 336                         // we don't need to mirror radius ducks - they're one-dimensional
 337                         if ((*iter)->is_radius())
 338                                 continue;
 339
 340                         Vector p(positions[i]);
 341
 342                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 343                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 344
 345                         (*iter)->set_trans_point(p);
 346                 }
 347 }
 348
 349 bool
 350 DuckDrag_Mirror::end_duck_drag(Duckmatic* duckmatic)
 351 {
 352         duckmatic->signal_edited_selected_ducks();
 353         return true;
 354 }