synfig-studio/src/gui/states/state_text.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_text.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) 2008 Chris Moore
  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 "state_text.h"
  37 #include "state_normal.h"
  38 #include "canvasview.h"
  39 #include "workarea.h"
  40 #include "app.h"
  41
  42 #include <synfigapp/action.h>
  43 #include "event_mouse.h"
  44 #include "event_layerclick.h"
  45 #include "toolbox.h"
  46 #include "docks/dialog_tooloptions.h"
  47 #include <gtkmm/optionmenu.h>
  48 #include "duck.h"
  49 #include "widgets/widget_enum.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 /* === G L O B A L S ======================================================= */
  66
  67 StateText studio::state_text;
  68
  69 /* === C L A S S E S & S T R U C T S ======================================= */
  70
  71 class studio::StateText_Context
  72 {
  73         etl::handle<CanvasView> canvas_view;
  74         CanvasView::IsWorking is_working;
  75
  76         Duckmatic::Push duckmatic_push;
  77
  78         void refresh_ducks();
  79
  80         bool prev_workarea_layer_status_;
  81
  82         //Toolbox settings
  83         synfigapp::Settings& settings;
  84
  85         //Toolbox display
  86         Gtk::Table options_table;
  87
  88         Gtk::Entry              entry_id; //what to name the layer
  89         Gtk::Entry              entry_family;
  90         Widget_Vector   widget_size;
  91         Widget_Vector   widget_orientation;
  92         Gtk::CheckButton checkbutton_paragraph;
  93
  94 public:
  95         synfig::String get_id()const { return entry_id.get_text(); }
  96         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
  97
  98         bool get_paragraph_flag()const { return checkbutton_paragraph.get_active(); }
  99         void set_paragraph_flag(bool x) { return checkbutton_paragraph.set_active(x); }
 100
 101         Vector get_size() { return widget_size.get_value(); }
 102         void set_size(Vector s) { return widget_size.set_value(s); }
 103
 104         Vector get_orientation() { return widget_orientation.get_value(); }
 105         void set_orientation(Vector s) { return widget_orientation.set_value(s); }
 106
 107         String get_family()const { return entry_family.get_text(); }
 108         void set_family(String s) { return entry_family.set_text(s); }
 109
 110         void refresh_tool_options(); //to refresh the toolbox
 111
 112         //events
 113         Smach::event_result event_stop_handler(const Smach::event& x);
 114         Smach::event_result event_refresh_handler(const Smach::event& x);
 115         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 116         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 117         Smach::event_result event_workarea_mouse_button_down_handler(const Smach::event& x);
 118
 119         //constructor destructor
 120         StateText_Context(CanvasView *canvas_view);
 121         ~StateText_Context();
 122
 123         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view;}
 124         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view->canvas_interface();}
 125         WorkArea * get_work_area()const{return canvas_view->get_work_area();}
 126
 127         //Modifying settings etc.
 128         void load_settings();
 129         void save_settings();
 130         void reset();
 131         void increment_id();
 132         bool egress_on_selection_change;
 133         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 134         {
 135                 if(egress_on_selection_change)
 136                         throw &state_normal; //throw Smach::egress_exception();
 137                 return Smach::RESULT_OK;
 138         }
 139
 140         void make_text(const Point& point);
 141
 142 }; // END of class StateText_Context
 143
 144 /* === P R O C E D U R E S ================================================= */
 145
 146 /* === M E T H O D S ======================================================= */
 147
 148 StateText::StateText():
 149         Smach::state<StateText_Context>("text")
 150 {
 151         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateText_Context::event_layer_selection_changed_handler));
 152         insert(event_def(EVENT_STOP,&StateText_Context::event_stop_handler));
 153         insert(event_def(EVENT_REFRESH,&StateText_Context::event_refresh_handler));
 154         insert(event_def(EVENT_REFRESH_DUCKS,&StateText_Context::event_refresh_handler));
 155         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateText_Context::event_workarea_mouse_button_down_handler));
 156         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateText_Context::event_refresh_tool_options));
 157 }
 158
 159 StateText::~StateText()
 160 {
 161 }
 162
 163 void
 164 StateText_Context::load_settings()
 165 {
 166         String value;
 167         Vector v;
 168
 169         //parse the arguments yargh!
 170         if(settings.get_value("text.id",value))
 171                 set_id(value);
 172         else
 173                 set_id("Text");
 174
 175         if(settings.get_value("text.paragraph",value) && value=="1")
 176                 set_paragraph_flag(true);
 177         else
 178                 set_paragraph_flag(false);
 179
 180         if(settings.get_value("text.size_x",value))
 181                 v[0] = atof(value.c_str());
 182         else
 183                 v[0] = 0.25;
 184         if(settings.get_value("text.size_y",value))
 185                 v[1] = atof(value.c_str());
 186         else
 187                 v[1] = 0.25;
 188         set_size(v);
 189
 190         if(settings.get_value("text.orient_x",value))
 191                 v[0] = atof(value.c_str());
 192         else
 193                 v[0] = 0.5;
 194         if(settings.get_value("text.orient_y",value))
 195                 v[1] = atof(value.c_str());
 196         else
 197                 v[1] = 0.5;
 198         set_orientation(v);
 199
 200         if(settings.get_value("text.family",value))
 201                 set_family(value);
 202         else
 203                 set_family("Sans Serif");
 204 }
 205
 206 void
 207 StateText_Context::save_settings()
 208 {
 209         settings.set_value("text.id",get_id());
 210         settings.set_value("text.paragraph",get_paragraph_flag()?"1":"0");
 211         settings.set_value("text.size_x",strprintf("%f",(float)get_size()[0]));
 212         settings.set_value("text.size_y",strprintf("%f",(float)get_size()[1]));
 213         settings.set_value("text.orient_x",strprintf("%f",(float)get_orientation()[0]));
 214         settings.set_value("text.orient_y",strprintf("%f",(float)get_orientation()[1]));
 215         settings.set_value("text.family",get_family());
 216 }
 217
 218 void
 219 StateText_Context::reset()
 220 {
 221         refresh_ducks();
 222 }
 223
 224 void
 225 StateText_Context::increment_id()
 226 {
 227         String id(get_id());
 228         int number=1;
 229         int digits=0;
 230
 231         if(id.empty())
 232                 id="Text";
 233
 234         // If there is a number
 235         // already at the end of the
 236         // id, then remove it.
 237         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 238         {
 239                 // figure out how many digits it is
 240                 for (digits = 0;
 241                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 242                          digits++)
 243                         ;
 244
 245                 String str_number;
 246                 str_number=String(id,id.size()-digits,id.size());
 247                 id=String(id,0,id.size()-digits);
 248
 249                 number=atoi(str_number.c_str());
 250         }
 251         else
 252         {
 253                 number=1;
 254                 digits=3;
 255         }
 256
 257         number++;
 258
 259         // Add the number back onto the id
 260         {
 261                 const String format(strprintf("%%0%dd",digits));
 262                 id+=strprintf(format.c_str(),number);
 263         }
 264
 265         // Set the ID
 266         set_id(id);
 267 }
 268
 269 StateText_Context::StateText_Context(CanvasView *canvas_view):
 270         canvas_view(canvas_view),
 271         is_working(*canvas_view),
 272         duckmatic_push(get_work_area()),
 273         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 274         settings(synfigapp::Main::get_selected_input_device()->settings()),
 275         entry_id(),
 276         checkbutton_paragraph(_("Multiline Editor"))
 277 {
 278         egress_on_selection_change=true;
 279
 280         widget_size.set_digits(2);
 281         widget_size.set_canvas(canvas_view->get_canvas());
 282
 283         widget_orientation.set_digits(2);
 284
 285         options_table.attach(*manage(new Gtk::Label(_("Text Tool"))),           0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 286         options_table.attach(entry_id,                                                                          0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 287         options_table.attach(checkbutton_paragraph,                                                     0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 288         options_table.attach(*manage(new Gtk::Label(_("Size:"))),                       0, 1, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 289         options_table.attach(widget_size,                                                                       1, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 290         options_table.attach(*manage(new Gtk::Label(_("Orientation:"))),        0, 1, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 291         options_table.attach(widget_orientation,                                                        1, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 292         options_table.attach(*manage(new Gtk::Label(_("Family:"))),                     0, 1, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 293         options_table.attach(entry_family,                                                                      1, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 294
 295         load_settings();
 296
 297         options_table.show_all();
 298
 299         refresh_tool_options();
 300         App::dialog_tool_options->present();
 301
 302         // Turn off layer clicking
 303         get_work_area()->set_allow_layer_clicks(false);
 304
 305         // clear out the ducks
 306         get_work_area()->clear_ducks();
 307
 308         // Refresh the work area
 309         get_work_area()->queue_draw();
 310
 311         // Hide the tables if they are showing
 312         //prev_table_status=get_canvas_view()->tables_are_visible();
 313         //if(prev_table_status)get_canvas_view()->hide_tables();
 314
 315         // Disable the time bar
 316         //get_canvas_view()->set_sensitive_timebar(false);
 317
 318         // Connect a signal
 319         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateText_Context::on_user_click));
 320         get_work_area()->set_cursor(Gdk::XTERM);
 321
 322         App::toolbox->refresh();
 323 }
 324
 325 void
 326 StateText_Context::refresh_tool_options()
 327 {
 328         App::dialog_tool_options->clear();
 329         App::dialog_tool_options->set_widget(options_table);
 330         App::dialog_tool_options->set_local_name(_("Text Tool"));
 331         App::dialog_tool_options->set_name("text");
 332 }
 333
 334 Smach::event_result
 335 StateText_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 336 {
 337         refresh_tool_options();
 338         return Smach::RESULT_ACCEPT;
 339 }
 340
 341 StateText_Context::~StateText_Context()
 342 {
 343         save_settings();
 344
 345         // Restore layer clicking
 346         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 347         get_work_area()->reset_cursor();
 348
 349         App::dialog_tool_options->clear();
 350
 351         get_work_area()->queue_draw();
 352
 353         get_canvas_view()->queue_rebuild_ducks();
 354
 355         App::toolbox->refresh();
 356 }
 357
 358 Smach::event_result
 359 StateText_Context::event_stop_handler(const Smach::event& /*x*/)
 360 {
 361         //throw Smach::egress_exception();
 362         throw &state_normal;
 363         return Smach::RESULT_OK;
 364 }
 365
 366 Smach::event_result
 367 StateText_Context::event_refresh_handler(const Smach::event& /*x*/)
 368 {
 369         refresh_ducks();
 370         return Smach::RESULT_ACCEPT;
 371 }
 372
 373 void
 374 StateText_Context::make_text(const Point& _point)
 375 {
 376         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Text"));
 377         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 378
 379         Layer::Handle layer;
 380
 381         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 382         int depth(0);
 383
 384         // we are temporarily using the layer to hold something
 385         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 386         if(layer)
 387         {
 388                 depth=layer->get_depth();
 389                 canvas=layer->get_canvas();
 390         }
 391
 392         synfigapp::SelectionManager::LayerList layer_selection;
 393         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 394                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 395
 396         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 397         const Point point(transform.unperform(_point));
 398
 399         String text;
 400         if (get_paragraph_flag())
 401                 App::dialog_paragraph(_("Text Paragraph"), _("Enter text here:"), text);
 402         else
 403                 App::dialog_entry(_("Text Entry"), _("Enter text here:"), text);
 404
 405         layer=get_canvas_interface()->add_layer_to("text",canvas,depth);
 406         if (!layer)
 407         {
 408                 get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 409                 group.cancel();
 410                 return;
 411         }
 412         layer_selection.push_back(layer);
 413
 414         layer->set_param("origin",point);
 415         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 416
 417         layer->set_param("text",text);
 418         get_canvas_interface()->signal_layer_param_changed()(layer,"text");
 419
 420         layer->set_param("size",get_size());
 421         get_canvas_interface()->signal_layer_param_changed()(layer,"size");
 422
 423         layer->set_param("orient",get_orientation());
 424         get_canvas_interface()->signal_layer_param_changed()(layer,"orient");
 425
 426         layer->set_param("family",get_family());
 427         get_canvas_interface()->signal_layer_param_changed()(layer,"family");
 428
 429         layer->set_description(get_id());
 430         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 431
 432         egress_on_selection_change=false;
 433         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 434         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 435         egress_on_selection_change=true;
 436
 437         reset();
 438         increment_id();
 439 }
 440
 441 Smach::event_result
 442 StateText_Context::event_workarea_mouse_button_down_handler(const Smach::event& x)
 443 {
 444         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 445         if(event.button==BUTTON_LEFT)
 446         {
 447                 make_text(get_work_area()->snap_point_to_grid(event.pos));
 448
 449                 get_work_area()->clear_ducks();
 450                 return Smach::RESULT_ACCEPT;
 451         }
 452         return Smach::RESULT_OK;
 453 }
 454
 455 void
 456 StateText_Context::refresh_ducks()
 457 {
 458         get_work_area()->clear_ducks();
 459         get_work_area()->queue_draw();
 460 }