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 public:
 103
 104         Axis get_axis()const { return duck_dragger_->axis; }
 105         void set_axis(Axis a)
 106         {
 107                 if (duck_dragger_->axis != a)
 108                 {
 109                         duck_dragger_->axis = a;
 110                         get_work_area()->set_cursor(get_axis() == AXIS_X?Gdk::SB_H_DOUBLE_ARROW:Gdk::SB_V_DOUBLE_ARROW);
 111                 }
 112         }
 113
 114         Smach::event_result event_stop_handler(const Smach::event& x);
 115         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 116         Smach::event_result event_mouse_motion_handler(const Smach::event& x);
 117
 118         void refresh_tool_options();
 119
 120         StateMirror_Context(CanvasView* canvas_view);
 121
 122         ~StateMirror_Context();
 123
 124         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 125         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 126         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 127         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 128
 129 };      // END of class StateMirror_Context
 130
 131 /* === M E T H O D S ======================================================= */
 132
 133 StateMirror::StateMirror():
 134         Smach::state<StateMirror_Context>("mirror")
 135 {
 136         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateMirror_Context::event_refresh_tool_options));
 137         insert(event_def(EVENT_STOP,&StateMirror_Context::event_stop_handler));
 138         insert(event_def(EVENT_WORKAREA_MOUSE_MOTION,           &StateMirror_Context::event_mouse_motion_handler));
 139         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,      &StateMirror_Context::event_mouse_motion_handler));
 140 }
 141
 142 StateMirror::~StateMirror()
 143 {
 144 }
 145
 146 StateMirror_Context::StateMirror_Context(CanvasView* canvas_view):
 147         canvas_view_(canvas_view),
 148         is_working(*canvas_view),
 149         duck_dragger_(new DuckDrag_Mirror())
 150 {
 151         // Set up the tool options dialog
 152         options_table.attach(*manage(new Gtk::Label(_("Mirror Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 153         options_table.attach(*manage(new Gtk::Label(_("Shift to mirror horizontally"), Gtk::ALIGN_LEFT)), 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 154
 155         options_table.show_all();
 156         refresh_tool_options();
 157         App::dialog_tool_options->present();
 158
 159         get_work_area()->set_allow_layer_clicks(true);
 160         get_work_area()->set_duck_dragger(duck_dragger_);
 161
 162         get_work_area()->set_cursor(Gdk::SB_H_DOUBLE_ARROW);
 163 //      get_work_area()->reset_cursor();
 164
 165         App::toolbox->refresh();
 166
 167         set_axis(AXIS_Y);
 168 }
 169
 170 void
 171 StateMirror_Context::refresh_tool_options()
 172 {
 173         App::dialog_tool_options->clear();
 174         App::dialog_tool_options->set_widget(options_table);
 175         App::dialog_tool_options->set_local_name(_("Mirror Tool"));
 176         App::dialog_tool_options->set_name("mirror");
 177 }
 178
 179 Smach::event_result
 180 StateMirror_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 181 {
 182         refresh_tool_options();
 183         return Smach::RESULT_ACCEPT;
 184 }
 185
 186 Smach::event_result
 187 StateMirror_Context::event_stop_handler(const Smach::event& /*x*/)
 188 {
 189         throw &state_normal;
 190         return Smach::RESULT_OK;
 191 }
 192
 193 Smach::event_result
 194 StateMirror_Context::event_mouse_motion_handler(const Smach::event& x)
 195 {
 196         // synfig::info("STATE NORMAL: Received mouse button down Event");
 197
 198         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 199
 200         set_axis(event.modifier&GDK_SHIFT_MASK ? AXIS_X : AXIS_Y);
 201
 202         return Smach::RESULT_OK;
 203 }
 204
 205 StateMirror_Context::~StateMirror_Context()
 206 {
 207         get_work_area()->clear_duck_dragger();
 208         get_work_area()->reset_cursor();
 209
 210         App::dialog_tool_options->clear();
 211
 212         App::toolbox->refresh();
 213 }
 214
 215 DuckDrag_Mirror::DuckDrag_Mirror():
 216         axis(AXIS_X)
 217 {
 218 }
 219
 220 #ifndef EPSILON
 221 #define EPSILON 0.0000001
 222 #endif
 223
 224 void
 225 DuckDrag_Mirror::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& /*offset*/)
 226 {
 227         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 228         DuckList::const_iterator iter;
 229
 230         positions.clear();
 231         int i;
 232         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 233         {
 234                 Point p((*iter)->get_trans_point());
 235                 positions.push_back(p);
 236         }
 237
 238 }
 239
 240 void
 241 DuckDrag_Mirror::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 242 {
 243         center=vector;
 244         int i;
 245
 246         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 247         DuckList::const_iterator iter;
 248
 249         Time time(duckmatic->get_time());
 250
 251         // do the Vertex and Position ducks first
 252         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 253                 if ((*iter)->get_type() == Duck::TYPE_VERTEX ||
 254                         (*iter)->get_type() == Duck::TYPE_POSITION)
 255                 {
 256                         Vector p(positions[i]);
 257
 258                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 259                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 260
 261                         (*iter)->set_trans_point(p);
 262                 }
 263
 264         // then do the other ducks
 265         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 266                 if ((*iter)->get_type() != Duck::TYPE_VERTEX &&
 267                         (*iter)->get_type() != Duck::TYPE_POSITION)
 268                 {
 269                         // we don't need to mirror radius ducks - they're one-dimensional
 270                         if ((*iter)->is_radius())
 271                                 continue;
 272
 273                         Vector p(positions[i]);
 274
 275                         if              (axis==AXIS_X) p[0] = -(p[0]-center[0]) + center[0];
 276                         else if (axis==AXIS_Y) p[1] = -(p[1]-center[1]) + center[1];
 277
 278                         (*iter)->set_trans_point(p);
 279                 }
 280 }
 281
 282 bool
 283 DuckDrag_Mirror::end_duck_drag(Duckmatic* duckmatic)
 284 {
 285         duckmatic->signal_edited_selected_ducks();
 286         return true;
 287 }