synfig-studio/trunk/src/gtkmm/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 **
  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 "state_text.h"
  36 #include "canvasview.h"
  37 #include "workarea.h"
  38 #include "app.h"
  39
  40 #include <synfigapp/action.h>
  41 #include "event_mouse.h"
  42 #include "event_layerclick.h"
  43 #include "toolbox.h"
  44 #include "dialog_tooloptions.h"
  45 #include <gtkmm/optionmenu.h>
  46 #include "duck.h"
  47 #include "widget_enum.h"
  48 #include <synfigapp/main.h>
  49
  50 #include "general.h"
  51
  52 #endif
  53
  54 /* === U S I N G =========================================================== */
  55
  56 using namespace std;
  57 using namespace etl;
  58 using namespace synfig;
  59 using namespace studio;
  60
  61 /* === M A C R O S ========================================================= */
  62
  63 /* === G L O B A L S ======================================================= */
  64
  65 StateText studio::state_text;
  66
  67 /* === C L A S S E S & S T R U C T S ======================================= */
  68
  69 class studio::StateText_Context
  70 {
  71         etl::handle<CanvasView> canvas_view;
  72         CanvasView::IsWorking is_working;
  73
  74         Duckmatic::Push duckmatic_push;
  75
  76         void refresh_ducks();
  77
  78         bool prev_workarea_layer_status_;
  79
  80         //Toolbox settings
  81         synfigapp::Settings& settings;
  82
  83         //Toolbox display
  84         Gtk::Table options_table;
  85
  86         Gtk::Entry              entry_id; //what to name the layer
  87         Gtk::Entry              entry_family;
  88         Widget_Vector   widget_size;
  89         Widget_Vector   widget_orientation;
  90         Gtk::CheckButton checkbutton_paragraph;
  91
  92 public:
  93         synfig::String get_id()const { return entry_id.get_text(); }
  94         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
  95
  96         bool get_paragraph_flag()const { return checkbutton_paragraph.get_active(); }
  97         void set_paragraph_flag(bool x) { return checkbutton_paragraph.set_active(x); }
  98
  99         Vector get_size() { return widget_size.get_value(); }
 100         void set_size(Vector s) { return widget_size.set_value(s); }
 101
 102         Vector get_orientation() { return widget_orientation.get_value(); }
 103         void set_orientation(Vector s) { return widget_orientation.set_value(s); }
 104
 105         String get_family()const { return entry_family.get_text(); }
 106         void set_family(String s) { return entry_family.set_text(s); }
 107
 108         void refresh_tool_options(); //to refresh the toolbox
 109
 110         //events
 111         Smach::event_result event_stop_handler(const Smach::event& x);
 112         Smach::event_result event_refresh_handler(const Smach::event& x);
 113         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 114         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 115         Smach::event_result event_workarea_mouse_button_down_handler(const Smach::event& x);
 116
 117         //constructor destructor
 118         StateText_Context(CanvasView *canvas_view);
 119         ~StateText_Context();
 120
 121         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view;}
 122         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view->canvas_interface();}
 123         WorkArea * get_work_area()const{return canvas_view->get_work_area();}
 124
 125         //Modifying settings etc.
 126         void load_settings();
 127         void save_settings();
 128         void reset();
 129         void increment_id();
 130         bool egress_on_selection_change;
 131         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 132         {
 133                 if(egress_on_selection_change)
 134                         throw Smach::egress_exception();
 135                 return Smach::RESULT_OK;
 136         }
 137
 138         void make_text(const Point& point);
 139
 140 }; // END of class StateText_Context
 141
 142 /* === P R O C E D U R E S ================================================= */
 143
 144 /* === M E T H O D S ======================================================= */
 145
 146 StateText::StateText():
 147         Smach::state<StateText_Context>("text")
 148 {
 149         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateText_Context::event_layer_selection_changed_handler));
 150         insert(event_def(EVENT_STOP,&StateText_Context::event_stop_handler));
 151         insert(event_def(EVENT_REFRESH,&StateText_Context::event_refresh_handler));
 152         insert(event_def(EVENT_REFRESH_DUCKS,&StateText_Context::event_refresh_handler));
 153         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateText_Context::event_workarea_mouse_button_down_handler));
 154         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateText_Context::event_refresh_tool_options));
 155 }
 156
 157 StateText::~StateText()
 158 {
 159 }
 160
 161 void
 162 StateText_Context::load_settings()
 163 {
 164         String value;
 165         Vector v;
 166
 167         //parse the arguments yargh!
 168         if(settings.get_value("text.id",value))
 169                 set_id(value);
 170         else
 171                 set_id("Text");
 172
 173         if(settings.get_value("text.paragraph",value) && value=="1")
 174                 set_paragraph_flag(true);
 175         else
 176                 set_paragraph_flag(false);
 177
 178         if(settings.get_value("text.size_x",value))
 179                 v[0] = atof(value.c_str());
 180         else
 181                 v[0] = 0.25;
 182         if(settings.get_value("text.size_y",value))
 183                 v[1] = atof(value.c_str());
 184         else
 185                 v[1] = 0.25;
 186         set_size(v);
 187
 188         if(settings.get_value("text.orient_x",value))
 189                 v[0] = atof(value.c_str());
 190         else
 191                 v[0] = 0.5;
 192         if(settings.get_value("text.orient_y",value))
 193                 v[1] = atof(value.c_str());
 194         else
 195                 v[1] = 0.5;
 196         set_orientation(v);
 197
 198         if(settings.get_value("text.family",value))
 199                 set_family(value);
 200         else
 201                 set_family("Sans Serif");
 202 }
 203
 204 void
 205 StateText_Context::save_settings()
 206 {
 207         settings.set_value("text.id",get_id());
 208         settings.set_value("text.paragraph",get_paragraph_flag()?"1":"0");
 209         settings.set_value("text.size_x",strprintf("%f",(float)get_size()[0]));
 210         settings.set_value("text.size_y",strprintf("%f",(float)get_size()[1]));
 211         settings.set_value("text.orient_x",strprintf("%f",(float)get_orientation()[0]));
 212         settings.set_value("text.orient_y",strprintf("%f",(float)get_orientation()[1]));
 213         settings.set_value("text.family",get_family());
 214 }
 215
 216 void
 217 StateText_Context::reset()
 218 {
 219         refresh_ducks();
 220 }
 221
 222 void
 223 StateText_Context::increment_id()
 224 {
 225         String id(get_id());
 226         int number=1;
 227         int digits=0;
 228
 229         if(id.empty())
 230                 id="Text";
 231
 232         // If there is a number
 233         // already at the end of the
 234         // id, then remove it.
 235         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 236         {
 237                 // figure out how many digits it is
 238                 for (digits = 0;
 239                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 240                          digits++)
 241                         ;
 242
 243                 String str_number;
 244                 str_number=String(id,id.size()-digits,id.size());
 245                 id=String(id,0,id.size()-digits);
 246
 247                 number=atoi(str_number.c_str());
 248         }
 249         else
 250         {
 251                 number=1;
 252                 digits=3;
 253         }
 254
 255         number++;
 256
 257         // Add the number back onto the id
 258         {
 259                 const String format(strprintf("%%0%dd",digits));
 260                 id+=strprintf(format.c_str(),number);
 261         }
 262
 263         // Set the ID
 264         set_id(id);
 265 }
 266
 267 StateText_Context::StateText_Context(CanvasView *canvas_view):
 268         canvas_view(canvas_view),
 269         is_working(*canvas_view),
 270         duckmatic_push(get_work_area()),
 271         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 272         settings(synfigapp::Main::get_selected_input_device()->settings()),
 273         entry_id(),
 274         checkbutton_paragraph(_("Multiline Editor"))
 275 {
 276         egress_on_selection_change=true;
 277
 278         widget_size.set_digits(2);
 279         widget_size.set_canvas(canvas_view->get_canvas());
 280
 281         widget_orientation.set_digits(2);
 282
 283         options_table.attach(entry_id,                                                                          0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 284         options_table.attach(checkbutton_paragraph,                                                     0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 285         options_table.attach(*manage(new Gtk::Label(_("Size:"))),                       0, 1, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 286         options_table.attach(widget_size,                                                                       1, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 287         options_table.attach(*manage(new Gtk::Label(_("Orientation:"))),        0, 1, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 288         options_table.attach(widget_orientation,                                                        1, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 289         options_table.attach(*manage(new Gtk::Label(_("Family:"))),                     0, 1, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 290         options_table.attach(entry_family,                                                                      1, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 291
 292         load_settings();
 293
 294         options_table.show_all();
 295
 296         refresh_tool_options();
 297         App::dialog_tool_options->present();
 298
 299         // Turn off layer clicking
 300         get_work_area()->set_allow_layer_clicks(false);
 301
 302         // clear out the ducks
 303         get_work_area()->clear_ducks();
 304
 305         // Refresh the work area
 306         get_work_area()->queue_draw();
 307
 308         // Hide the tables if they are showing
 309         //prev_table_status=get_canvas_view()->tables_are_visible();
 310         //if(prev_table_status)get_canvas_view()->hide_tables();
 311
 312         // Disable the time bar
 313         //get_canvas_view()->set_sensitive_timebar(false);
 314
 315         // Connect a signal
 316         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateText_Context::on_user_click));
 317         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 318
 319         App::toolbox->refresh();
 320 }
 321
 322 void
 323 StateText_Context::refresh_tool_options()
 324 {
 325         App::dialog_tool_options->clear();
 326         App::dialog_tool_options->set_widget(options_table);
 327         App::dialog_tool_options->set_local_name(_("Text Tool"));
 328         App::dialog_tool_options->set_name("text");
 329 }
 330
 331 Smach::event_result
 332 StateText_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 333 {
 334         refresh_tool_options();
 335         return Smach::RESULT_ACCEPT;
 336 }
 337
 338 StateText_Context::~StateText_Context()
 339 {
 340         save_settings();
 341
 342         // Restore layer clicking
 343         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 344         get_canvas_view()->work_area->reset_cursor();
 345
 346         App::dialog_tool_options->clear();
 347
 348         get_work_area()->queue_draw();
 349
 350         get_canvas_view()->queue_rebuild_ducks();
 351
 352         App::toolbox->refresh();
 353 }
 354
 355 Smach::event_result
 356 StateText_Context::event_stop_handler(const Smach::event& /*x*/)
 357 {
 358         throw Smach::egress_exception();
 359 }
 360
 361 Smach::event_result
 362 StateText_Context::event_refresh_handler(const Smach::event& /*x*/)
 363 {
 364         refresh_ducks();
 365         return Smach::RESULT_ACCEPT;
 366 }
 367
 368 void
 369 StateText_Context::make_text(const Point& _point)
 370 {
 371         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Text"));
 372         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 373
 374         Layer::Handle layer;
 375
 376         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 377         int depth(0);
 378
 379         // we are temporarily using the layer to hold something
 380         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 381         if(layer)
 382         {
 383                 depth=layer->get_depth();
 384                 canvas=layer->get_canvas();
 385         }
 386
 387         synfigapp::SelectionManager::LayerList layer_selection(get_canvas_view()->get_selection_manager()->get_selected_layers());
 388
 389         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 390         const Point point(transform.unperform(_point));
 391
 392         String text;
 393         if (get_paragraph_flag())
 394                 App::dialog_paragraph(_("Text Paragraph"), _("Enter text here:"), text);
 395         else
 396                 App::dialog_entry(_("Text Entry"), _("Enter text here:"), text);
 397
 398         layer=get_canvas_interface()->add_layer_to("text",canvas,depth);
 399         layer_selection.push_back(layer);
 400
 401         layer->set_param("pos",point);
 402         get_canvas_interface()->signal_layer_param_changed()(layer,"pos");
 403
 404         layer->set_param("text",text);
 405         get_canvas_interface()->signal_layer_param_changed()(layer,"text");
 406
 407         layer->set_param("size",get_size());
 408         get_canvas_interface()->signal_layer_param_changed()(layer,"size");
 409
 410         layer->set_param("orient",get_orientation());
 411         get_canvas_interface()->signal_layer_param_changed()(layer,"orient");
 412
 413         layer->set_param("family",get_family());
 414         get_canvas_interface()->signal_layer_param_changed()(layer,"family");
 415
 416         layer->set_description(get_id());
 417         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 418
 419         egress_on_selection_change=false;
 420         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 421         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 422         egress_on_selection_change=true;
 423
 424         reset();
 425         increment_id();
 426 }
 427
 428 Smach::event_result
 429 StateText_Context::event_workarea_mouse_button_down_handler(const Smach::event& x)
 430 {
 431         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 432         if(event.button==BUTTON_LEFT)
 433         {
 434                 make_text(get_work_area()->snap_point_to_grid(event.pos));
 435
 436                 get_work_area()->clear_ducks();
 437                 return Smach::RESULT_ACCEPT;
 438         }
 439         return Smach::RESULT_OK;
 440 }
 441
 442 void
 443 StateText_Context::refresh_ducks()
 444 {
 445         get_work_area()->clear_ducks();
 446         get_work_area()->queue_draw();
 447 }