Make both tangents yellow now that we don't need to distinguish colour to do linking
[synfig.git] / synfig-studio / src / gui / toolbox.cpp
1 /* === S Y N F I G ========================================================= */
2 /*!     \file toolbox.cpp
3 **      \brief writeme
4 **
5 **      $Id$
6 **
7 **      \legal
8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 **      Copyright (c) 2007, 2008 Chris Moore
10 **  Copyright (c) 2008 Paul Wise
11 **      Copyright (c) 2009 Nikita Kitaev
12 **
13 **      This package is free software; you can redistribute it and/or
14 **      modify it under the terms of the GNU General Public License as
15 **      published by the Free Software Foundation; either version 2 of
16 **      the License, or (at your option) any later version.
17 **
18 **      This package is distributed in the hope that it will be useful,
19 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
20 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 **      General Public License for more details.
22 **      \endlegal
23 **
24 ** === N O T E S ===========================================================
25 **
26 ** ========================================================================= */
27
28 /* === H E A D E R S ======================================================= */
29
30 #ifdef USING_PCH
31 #       include "pch.h"
32 #else
33 #ifdef HAVE_CONFIG_H
34 #       include <config.h>
35 #endif
36
37 #include <gtk/gtk.h>
38 #include <gtkmm/uimanager.h>
39
40 #include <gtkmm/ruler.h>
41 #include <gtkmm/arrow.h>
42 #include <gtkmm/image.h>
43 #include <gdkmm/pixbufloader.h>
44 #include <gtkmm/viewport.h>
45 #include <gtkmm/adjustment.h>
46 #include <gtkmm/scrolledwindow.h>
47 #include <gtkmm/table.h>
48 #include <gtkmm/statusbar.h>
49 #include <gtkmm/menubar.h>
50 #include <gtkmm/menu.h>
51 #include <gtkmm/button.h>
52 #include <gtkmm/toolbar.h>
53 #include <gtkmm/box.h>
54 #include <gtkmm/image.h>
55 #include <gtkmm/stock.h>
56 #include <gtkmm/handlebox.h>
57
58 #include <gtkmm/inputdialog.h>
59
60 #include <sigc++/signal.h>
61 #include <sigc++/hide.h>
62 #include <sigc++/slot.h>
63 #include <sigc++/retype_return.h>
64 #include <sigc++/retype.h>
65
66 #include <sstream>
67
68 #include "toolbox.h"
69 #include "instance.h"
70 #include "app.h"
71 #include "canvasview.h"
72 #include "dialogs/dialog_gradient.h"
73 #include "dialogs/dialog_color.h"
74 #include "docks/dialog_tooloptions.h"
75 #include "dialogs/dialog_preview.h"
76 #include "docks/dockable.h"
77 #include "docks/dockmanager.h"
78 #include "docks/dockdialog.h"
79
80 #include "widgets/widget_defaults.h"
81
82 #include <synfigapp/main.h>
83
84 #include "general.h"
85
86 #endif
87
88 using namespace std;
89 using namespace etl;
90 using namespace synfig;
91 using namespace studio;
92 using namespace sigc;
93
94 /* === M A C R O S ========================================================= */
95
96 #define GRAB_HINT_DATA(y,default)       { \
97                 String x; \
98                 if(synfigapp::Main::settings().get_value(String("pref.")+y+"_hints",x)) \
99                 { \
100                         set_type_hint((Gdk::WindowTypeHint)atoi(x.c_str()));    \
101                 } else {\
102                         set_type_hint(default); \
103                 } \
104         }
105
106 /* === G L O B A L S ======================================================= */
107
108 /* === P R O C E D U R E S ================================================= */
109
110 /* === M E T H O D S ======================================================= */
111
112 #define TOGGLE_TOOLBOX_BUTTON(button,stockid,tooltip)   \
113         button = manage(new class Gtk::ToggleButton()); \
114         icon=manage(new Gtk::Image(Gtk::StockID(stockid),Gtk::IconSize(4)));    \
115         button->add(*icon);     \
116         tooltips.set_tip(*button,tooltip);      \
117         icon->show();   \
118         button->show()
119
120 #define TOOLBOX_BUTTON(button,stockid,tooltip)  \
121         button = manage(new class Gtk::Button());       \
122         icon=manage(new Gtk::Image(Gtk::StockID(stockid),Gtk::IconSize(4)));    \
123         button->add(*icon);     \
124         tooltips.set_tip(*button,tooltip);      \
125         icon->show();   \
126         button->show()
127
128 #define ADD_TOOLBOX_BUTTON(button,stockid,tooltip)      Gtk::Button *TOOLBOX_BUTTON(button,stockid,tooltip)
129
130 void
131 save_selected_instance()
132 {
133         if(!studio::App::get_selected_instance())
134         {
135                 App::dialog_error_blocking(_("Cannot save"),_("Nothing to save"));
136                 return;
137         }
138
139         studio::App::get_selected_instance()->save();
140 }
141
142 void
143 save_as_selected_instance()
144 {
145         if(!studio::App::get_selected_instance())
146         {
147                 App::dialog_error_blocking(_("Cannot save as"),_("Nothing to save"));
148                 return;
149         }
150
151         studio::App::get_selected_instance()->dialog_save_as();
152 }
153
154 void
155 save_all()
156 {
157         std::list<etl::handle<Instance> >::iterator iter;
158         for(iter=App::instance_list.begin();iter!=App::instance_list.end();iter++)
159                 (*iter)->save();
160 }
161
162 void
163 close_selected_instance()
164 {
165         etl::handle<studio::Instance> instance=studio::App::get_selected_instance();
166
167         if(!instance)
168         {
169                 App::dialog_error_blocking(_("Cannot close"),_("Nothing to close"));
170                 return;
171         }
172
173         instance->safe_close();
174
175         //assert(instance.unique());
176 }
177
178
179 static void
180 show_dialog_input()
181 {
182         App::dialog_input->present();
183 }
184
185 void _create_stock_dialog1()
186 {
187         DockDialog* dock_dialog(new DockDialog);
188         dock_dialog->set_contents("canvases history");
189         dock_dialog->set_composition_selector(true);
190         dock_dialog->present();
191 }
192 void _create_stock_dialog2()
193 {
194         DockDialog* dock_dialog(new DockDialog);
195         dock_dialog->set_contents("layers children keyframes | params");
196         dock_dialog->present();
197 }
198
199 Toolbox::Toolbox():
200         Gtk::Window(Gtk::WINDOW_TOPLEVEL),
201         dialog_settings(this,"toolbox")
202 {
203         GRAB_HINT_DATA(
204                 "toolbox",
205 //#ifdef __APPLE__
206                 Gdk::WINDOW_TYPE_HINT_NORMAL
207 //#else
208 //              Gdk::WINDOW_TYPE_HINT_UTILITY
209 //#endif
210         );
211         set_keep_above(false);
212         set_role("toolbox");
213
214
215
216         recent_files_menu= manage(new class Gtk::Menu());
217
218         Gtk::Menu       *filemenu       =manage(new class Gtk::Menu());
219
220         dock_dialogs=manage(new class Gtk::Menu());
221
222         dock_dialogs->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Vertical Dock: Canvases, History"),sigc::ptr_fun(_create_stock_dialog1)));
223         dock_dialogs->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Horizontal Dock: Layers, Children, Params"),sigc::ptr_fun(_create_stock_dialog2)));
224         dock_dialogs->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
225         dock_dialogs->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Reset Windows to Original Layout"),sigc::ptr_fun(App::reset_initial_window_configuration)));
226         dock_dialogs->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
227
228
229         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::NEW,
230                 sigc::ptr_fun(&studio::App::new_instance)));
231         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::OPEN,
232                 sigc::bind(sigc::ptr_fun(&studio::App::dialog_open), "")));
233
234         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Open Recent"),*recent_files_menu));
235
236         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID("synfig-saveall"),
237                 sigc::ptr_fun(save_all)));
238         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::CLOSE,
239                 sigc::ptr_fun(close_selected_instance)));
240         filemenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
241         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Panels"),*dock_dialogs));
242
243         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Input Devices..."),
244                 sigc::ptr_fun(&show_dialog_input)));
245         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Setup..."),
246                 sigc::ptr_fun(&studio::App::show_setup)));
247         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Reset to default Setup values"),
248                 sigc::ptr_fun(&studio::App::reset_initial_preferences)));
249
250         filemenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
251         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID(Gtk::Stock::QUIT),
252                 sigc::ptr_fun(studio::App::quit)));
253
254 #define WIKI(title,page)                                                                                        \
255         helpmenu->items().push_back(Gtk::Menu_Helpers::MenuElem(title,  \
256                 sigc::bind(sigc::ptr_fun(&studio::App::open_url),String("http://synfig.org/wiki")+page)))
257
258 #define SITE(title,page)                                                                                        \
259         helpmenu->items().push_back(Gtk::Menu_Helpers::MenuElem(title,  \
260                 sigc::bind(sigc::ptr_fun(&studio::App::open_url),String("http://synfig.org")+page)))
261
262         Gtk::Menu       *helpmenu = manage(new class Gtk::Menu());
263         helpmenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::HELP, sigc::ptr_fun(studio::App::dialog_help)));
264         helpmenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
265
266         /* TRANSLATORS: Help menu entry */ WIKI(_("Tutorials"),                                 /* TRANSLATORS: a wiki page */ _("/Category:Tutorials")                         );
267         /* TRANSLATORS: Help menu entry */ WIKI(_("Reference"),                                 /* TRANSLATORS: a wiki page */ _("/Category:Reference")                         );
268         /* TRANSLATORS: Help menu entry */ WIKI(_("Frequently Asked Questions"),/* TRANSLATORS: a wiki page */ _("/FAQ")                                        );
269         helpmenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
270         /* TRANSLATORS: Help menu entry */ SITE(_("Get Support"),                               /* TRANSLATORS: a website page */ _("/en/support")                      );
271         helpmenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
272         helpmenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID("synfig-about"),
273                 sigc::ptr_fun(studio::App::dialog_about)));
274
275         Gtk::MenuBar *menubar1 = manage(new class Gtk::MenuBar());
276         menubar1->items().push_back(Gtk::Menu_Helpers::MenuElem(_("_File"),*filemenu));
277         menubar1->items().push_back(Gtk::Menu_Helpers::MenuElem(_("_Help"),*helpmenu));
278
279
280         menubar1->show();
281
282         Gtk::Image *icon;
283
284         ADD_TOOLBOX_BUTTON(button_new,"gtk-new",_("New..."));
285         ADD_TOOLBOX_BUTTON(button_open,"gtk-open",_("Open..."));
286         ADD_TOOLBOX_BUTTON(button_save,"gtk-save",_("Save"));
287         ADD_TOOLBOX_BUTTON(button_saveas,"gtk-save-as",_("Save As..."));
288         ADD_TOOLBOX_BUTTON(button_save_all,"synfig-saveall",_("Save All"));
289         TOOLBOX_BUTTON(button_undo,"gtk-undo",_("Undo"));
290         TOOLBOX_BUTTON(button_redo,"gtk-redo",_("Redo"));
291         ADD_TOOLBOX_BUTTON(button_setup,"gtk-properties",_("Setup"));
292         ADD_TOOLBOX_BUTTON(button_about,"synfig-about",_("About Synfig Studio"));
293         ADD_TOOLBOX_BUTTON(button_help,"gtk-help",_("Help"));
294
295         button_setup->signal_clicked().connect(sigc::ptr_fun(studio::App::show_setup));
296         button_about->signal_clicked().connect(sigc::ptr_fun(studio::App::dialog_about));
297         button_help->signal_clicked().connect(sigc::ptr_fun(studio::App::dialog_help));
298         button_new->signal_clicked().connect(sigc::ptr_fun(studio::App::new_instance));
299         button_open->signal_clicked().connect(sigc::bind(sigc::ptr_fun(studio::App::dialog_open), ""));
300         button_save->signal_clicked().connect(sigc::ptr_fun(save_selected_instance));
301         button_saveas->signal_clicked().connect(sigc::ptr_fun(save_as_selected_instance));
302         button_save_all->signal_clicked().connect(sigc::ptr_fun(save_all));
303         button_undo->signal_clicked().connect(sigc::ptr_fun(studio::App::undo));
304         button_redo->signal_clicked().connect(sigc::ptr_fun(studio::App::redo));
305
306         // Create the file button cluster
307         Gtk::Table *file_buttons=manage(new class Gtk::Table());
308
309         file_buttons->attach(*button_new,      0,1, 0,1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
310         file_buttons->attach(*button_open,     1,2, 0,1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
311         file_buttons->attach(*button_save,     2,3, 0,1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
312         file_buttons->attach(*button_saveas,   3,4, 0,1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
313         file_buttons->attach(*button_save_all, 4,5, 0,1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
314
315         file_buttons->attach(*button_undo,     0,1, 1,2, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
316         file_buttons->attach(*button_redo,     1,2, 1,2, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
317         file_buttons->attach(*button_setup,    2,3, 1,2, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
318         file_buttons->attach(*button_about,    3,4, 1,2, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
319         file_buttons->attach(*button_help,     4,5, 1,2, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
320
321         file_buttons->show();
322
323         tool_table=manage(new class Gtk::Table());
324         tool_table->show();
325         Gtk::HandleBox* handle_tools(manage(new Gtk::HandleBox()));
326         handle_tools->add(*tool_table);
327         handle_tools->show();
328         handle_tools->set_handle_position(Gtk::POS_TOP);
329         handle_tools->set_snap_edge(Gtk::POS_TOP);
330
331         Widget_Defaults* widget_defaults(manage(new Widget_Defaults()));
332         widget_defaults->show();
333         Gtk::HandleBox* handle_defaults(manage(new Gtk::HandleBox()));
334         handle_defaults->add(*widget_defaults);
335         handle_defaults->show();
336         handle_defaults->set_handle_position(Gtk::POS_TOP);
337         handle_defaults->set_snap_edge(Gtk::POS_TOP);
338
339         // Create the toplevel table
340         Gtk::Table *table1 = manage(new class Gtk::Table(1, 2, false));
341         table1->set_row_spacings(0);
342         table1->set_col_spacings(0);
343         table1->attach(*menubar1,        0,1, 0,1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK, 0, 0);
344         table1->attach(*file_buttons,    0,1, 1,2, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
345         table1->attach(*handle_tools,    0,1, 2,3, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
346         table1->attach(*handle_defaults, 0,1, 3,4, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
347         table1->show_all();
348
349
350
351         // Set the parameters for this window
352         add(*table1);
353         set_title(_("Synfig Studio"));
354         set_modal(false);
355         property_window_position().set_value(Gtk::WIN_POS_NONE);
356         signal_delete_event().connect(sigc::ptr_fun(App::shutdown_request));
357         set_resizable(false);
358
359
360
361         App::signal_instance_selected().connect(
362                 sigc::hide(
363                         sigc::mem_fun(*this,&studio::Toolbox::update_undo_redo)
364                 )
365         );
366
367         App::signal_recent_files_changed().connect(
368                         sigc::mem_fun(*this,&studio::Toolbox::on_recent_files_changed)
369         );
370
371         button_undo->set_sensitive(false);
372         button_redo->set_sensitive(false);
373
374         std::list<Gtk::TargetEntry> listTargets;
375         listTargets.push_back( Gtk::TargetEntry("text/plain") );
376         listTargets.push_back( Gtk::TargetEntry("image") );
377 //      listTargets.push_back( Gtk::TargetEntry("image/x-sif") );
378
379         drag_dest_set(listTargets);
380         signal_drag_data_received().connect( sigc::mem_fun(*this, &studio::Toolbox::on_drop_drag_data_received) );
381
382         App::dock_manager->signal_dockable_registered().connect(sigc::mem_fun(*this,&Toolbox::dockable_registered));
383
384         changing_state_=false;
385
386
387         add_accel_group(App::ui_manager()->get_accel_group());
388
389         App::signal_present_all().connect(sigc::mem_fun0(*this,&Toolbox::present));
390 }
391
392 Toolbox::~Toolbox()
393 {
394         hide();
395         //studio::App::cb.task(_("Toolbox: I was nailed!"));
396         //studio::App::quit();
397
398         if(studio::App::toolbox==this)
399                 studio::App::toolbox=NULL;
400
401 }
402
403 void
404 Toolbox::set_active_state(const synfig::String& statename)
405 {
406         std::map<synfig::String,Gtk::ToggleButton *>::iterator iter;
407
408         changing_state_=true;
409
410         synfigapp::Main::set_state(statename);
411
412         try
413         {
414
415                 for(iter=state_button_map.begin();iter!=state_button_map.end();++iter)
416                 {
417                         if(iter->first==statename)
418                         {
419                                 if(!iter->second->get_active())
420                                         iter->second->set_active(true);
421                         }
422                         else
423                         {
424                                 if(iter->second->get_active())
425                                         iter->second->set_active(false);
426                         }
427                 }
428         }
429         catch(...)
430         {
431                 changing_state_=false;
432                 throw;
433         }
434         changing_state_=false;
435 }
436
437 void
438 Toolbox::change_state(const synfig::String& statename)
439 {
440         etl::handle<studio::CanvasView> canvas_view(studio::App::get_selected_canvas_view());
441         if(canvas_view)
442         {
443                 if(statename==canvas_view->get_smach().get_state_name())
444                 {
445                         return;
446                 }
447
448                 if(state_button_map.count(statename))
449                 {
450                         state_button_map[statename]->clicked();
451                 }
452                 else
453                 {
454                         synfig::error("Unknown state \"%s\"",statename.c_str());
455                 }
456         }
457 }
458
459 void
460 Toolbox::change_state_(const Smach::state_base *state)
461 {
462         if(changing_state_)
463                 return;
464         changing_state_=true;
465
466         try
467         {
468                 etl::handle<studio::CanvasView> canvas_view(studio::App::get_selected_canvas_view());
469                 if(canvas_view)
470                                 canvas_view->get_smach().enter(state);
471                 else
472                         refresh();
473         }
474         catch(...)
475         {
476                 changing_state_=false;
477                 throw;
478         }
479
480         changing_state_=false;
481 }
482
483 void
484 Toolbox::add_state(const Smach::state_base *state)
485 {
486         Gtk::Image *icon;
487
488         assert(state);
489
490         String name=state->get_name();
491
492         Gtk::StockItem stock_item;
493         Gtk::Stock::lookup(Gtk::StockID("synfig-"+name),stock_item);
494
495         Gtk::ToggleButton* button;
496         button=manage(new class Gtk::ToggleButton());
497
498         icon=manage(new Gtk::Image(stock_item.get_stock_id(),Gtk::IconSize(4)));
499         button->add(*icon);
500         tooltips.set_tip(*button,stock_item.get_label());
501         icon->show();
502         button->show();
503
504         int row=state_button_map.size()/5;
505         int col=state_button_map.size()%5;
506
507         tool_table->attach(*button,col,col+1,row,row+1, Gtk::EXPAND, Gtk::EXPAND, 0, 0);
508
509         state_button_map[name]=button;
510
511         button->signal_clicked().connect(
512                 sigc::bind(
513                         sigc::mem_fun(*this,&studio::Toolbox::change_state_),
514                         state
515                 )
516         );
517
518         refresh();
519 }
520
521
522 void
523 Toolbox::update_undo_redo()
524 {
525         etl::handle<Instance> instance=App::get_selected_instance();
526         if(instance)
527         {
528                 button_undo->set_sensitive(instance->get_undo_status());
529                 button_redo->set_sensitive(instance->get_redo_status());
530         }
531
532         // This should probably go elsewhere, but it should
533         // work fine here with no troubles.
534         // These next several lines just adjust the tool buttons
535         // so that they are only clickable when they should be.
536         if(instance && App::get_selected_canvas_view())
537         {
538                 std::map<synfig::String,Gtk::ToggleButton *>::iterator iter;
539
540                 for(iter=state_button_map.begin();iter!=state_button_map.end();++iter)
541                         iter->second->set_sensitive(true);
542         }
543         else
544         {
545                 std::map<synfig::String,Gtk::ToggleButton *>::iterator iter;
546
547                 for(iter=state_button_map.begin();iter!=state_button_map.end();++iter)
548                         iter->second->set_sensitive(false);
549         }
550
551         etl::handle<CanvasView> canvas_view=App::get_selected_canvas_view();
552         if(canvas_view && canvas_view->get_smach().get_state_name())
553         {
554                 set_active_state(canvas_view->get_smach().get_state_name());
555         }
556         else
557                 set_active_state("none");
558
559 }
560
561 void
562 Toolbox::on_recent_files_changed()
563 {
564         while(recent_files_menu->get_children().size())
565                 recent_files_menu->remove(**recent_files_menu->get_children().begin());
566
567         list<string>::const_iterator iter;
568         for(iter=App::get_recent_files().begin();iter!=App::get_recent_files().end();iter++)
569         {
570                 string raw = basename(*iter), quoted;
571                 size_t pos = 0, last_pos = 0;
572
573                 // replace _ in filenames by __ or it won't show up in the menu
574                 for (pos = last_pos = 0; (pos = raw.find('_', pos)) != string::npos; last_pos = pos)
575                         quoted += raw.substr(last_pos, ++pos - last_pos) + '_';
576                 quoted += raw.substr(last_pos);
577
578                 recent_files_menu->items().push_back(Gtk::Menu_Helpers::MenuElem(quoted,
579                         sigc::hide_return(sigc::bind(sigc::ptr_fun(&App::open),*iter))
580                 ));
581         }
582
583         // HACK
584         show();
585 }
586
587 void
588 Toolbox::on_drop_drag_data_received(const Glib::RefPtr<Gdk::DragContext>& context, int /*x*/, int /*y*/, const Gtk::SelectionData& selection_data_, guint /*info*/, guint time)
589 {
590         // We will make this true once we have a solid drop
591         bool success(false);
592
593         if ((selection_data_.get_length() >= 0) && (selection_data_.get_format() == 8))
594         {
595                 synfig::String selection_data((gchar *)(selection_data_.get_data()));
596
597                 // For some reason, GTK hands us a list of URLs separated
598                 // by not only Carriage-Returns, but also Line-Feeds.
599                 // Line-Feeds will mess us up. Remove all the line-feeds.
600                 while(selection_data.find_first_of('\r')!=synfig::String::npos)
601                         selection_data.erase(selection_data.begin()+selection_data.find_first_of('\r'));
602
603                 std::stringstream stream(selection_data);
604
605                 while(stream)
606                 {
607                         synfig::String filename,URI;
608                         getline(stream,filename);
609
610                         // If we don't have a filename, move on.
611                         if(filename.empty())
612                                 continue;
613
614                         // Make sure this URL is of the "file://" type.
615                         URI=String(filename.begin(),filename.begin()+sizeof("file://")-1);
616                         if(URI!="file://")
617                         {
618                                 synfig::warning("Unknown URI (%s) in \"%s\"",URI.c_str(),filename.c_str());
619                                 continue;
620                         }
621
622                         // Strip the "file://" part from the filename
623                         filename=synfig::String(filename.begin()+sizeof("file://")-1,filename.end());
624
625                         synfig::info("Attempting to open "+filename);
626                         if(App::open(filename))
627                                 success=true;
628                         else
629                                 synfig::error("Drop failed: Unable to open "+filename);
630                 }
631         }
632         else
633                 synfig::error("Drop failed: bad selection data");
634
635         // Finish the drag
636         context->drag_finish(success, false, time);
637 }
638
639 void
640 Toolbox::dockable_registered(Dockable* x)
641 {
642         dock_dialogs->items().push_back(
643                 Gtk::Menu_Helpers::MenuElem(
644                         x->get_local_name(),
645                         sigc::mem_fun(
646                                 *x,
647                                 &Dockable::present
648                         )
649                 )
650         );
651 }