synfig-studio/trunk/src/gtkmm/toolbox.cpp

   1 /*! ========================================================================
   2 ** Synfig
   3 ** Template File
   4 ** $Id: toolbox.cpp,v 1.3 2005/01/13 20:23:01 darco Exp $
   5 **
   6 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   7 **
   8 **      This package is free software; you can redistribute it and/or
   9 **      modify it under the terms of the GNU General Public License as
  10 **      published by the Free Software Foundation; either version 2 of
  11 **      the License, or (at your option) any later version.
  12 **
  13 **      This package is distributed in the hope that it will be useful,
  14 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16 **      General Public License for more details.
  17 **
  18 ** === N O T E S ===========================================================
  19 **
  20 ** ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include <gtk/gtk.h>
  32 #include <gtkmm/uimanager.h>
  33
  34 #include <gtkmm/ruler.h>
  35 #include <gtkmm/arrow.h>
  36 #include <gtkmm/image.h>
  37 #include <gdkmm/pixbufloader.h>
  38 #include <gtkmm/viewport.h>
  39 #include <gtkmm/adjustment.h>
  40 #include <gtkmm/scrolledwindow.h>
  41 #include <gtkmm/table.h>
  42 #include <gtkmm/statusbar.h>
  43 #include <gtkmm/menubar.h>
  44 #include <gtkmm/menu.h>
  45 #include <gtkmm/button.h>
  46 #include <gtkmm/toolbar.h>
  47 #include <gtkmm/box.h>
  48 #include <gtkmm/image.h>
  49 #include <gtkmm/stock.h>
  50 #include <gtkmm/handlebox.h>
  51
  52 #include <gtkmm/inputdialog.h>
  53
  54 #include <sigc++/signal.h>
  55 #include <sigc++/hide.h>
  56 #include <sigc++/slot.h>
  57 #include <sigc++/retype_return.h>
  58 #include <sigc++/retype.h>
  59
  60 #include <sstream>
  61
  62 #include "toolbox.h"
  63 #include "instance.h"
  64 #include "app.h"
  65 #include "canvasview.h"
  66 #include "dialog_gradient.h"
  67 #include "dialog_color.h"
  68 #include "dialog_tooloptions.h"
  69 #include "dialog_preview.h"
  70 #include "dockable.h"
  71 #include "dockmanager.h"
  72 #include "dockdialog.h"
  73
  74 #include "widget_defaults.h"
  75
  76 #include <synfigapp/main.h>
  77
  78 #endif
  79
  80 using namespace std;
  81 using namespace etl;
  82 using namespace synfig;
  83 using namespace studio;
  84 using namespace SigC;
  85
  86 /* === M A C R O S ========================================================= */
  87
  88 #define GRAB_HINT_DATA(y,default)       { \
  89                 String x; \
  90                 if(synfigapp::Main::settings().get_value(String("pref.")+y+"_hints",x)) \
  91                 { \
  92                         set_type_hint((Gdk::WindowTypeHint)atoi(x.c_str()));    \
  93                 } else {\
  94                         set_type_hint(default); \
  95                 } \
  96         }
  97
  98 /* === G L O B A L S ======================================================= */
  99
 100 /* === P R O C E D U R E S ================================================= */
 101
 102 /* === M E T H O D S ======================================================= */
 103
 104 #define TOGGLE_TOOLBOX_BUTTON(button,stockid,tooltip)   \
 105         button = manage(new class Gtk::ToggleButton()); \
 106         icon=manage(new Gtk::Image(Gtk::StockID(stockid),Gtk::IconSize(4)));    \
 107         button->add(*icon);     \
 108         tooltips.set_tip(*button,tooltip);      \
 109         icon->show();   \
 110         button->show()
 111
 112 #define TOOLBOX_BUTTON(button,stockid,tooltip)  \
 113         button = manage(new class Gtk::Button());       \
 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 ADD_TOOLBOX_BUTTON(button,stockid,tooltip)      Gtk::Button *TOOLBOX_BUTTON(button,stockid,tooltip)
 121
 122 void
 123 save_selected_instance()
 124 {
 125         if(!studio::App::get_selected_instance())
 126         {
 127                 App::dialog_error_blocking("Cannot save","Nothing to save");
 128                 return;
 129         }
 130
 131         if(!studio::App::get_selected_instance()->save())
 132                 App::dialog_error_blocking("Save - Error","Unable to save file");
 133 }
 134
 135 void
 136 save_as_selected_instance()
 137 {
 138         if(!studio::App::get_selected_instance())
 139         {
 140                 App::dialog_error_blocking("Cannot save as","Nothing to save");
 141                 return;
 142         }
 143
 144         studio::App::get_selected_instance()->dialog_save_as();
 145 }
 146
 147 void
 148 close_selected_instance()
 149 {
 150         etl::handle<studio::Instance> instance=studio::App::get_selected_instance();
 151
 152         if(!instance)
 153         {
 154                 App::dialog_error_blocking("Cannot close","Nothing to close");
 155                 return;
 156         }
 157
 158         instance->safe_close();
 159
 160         //assert(instance.unique());
 161 }
 162
 163
 164 static void
 165 show_dialog_input()
 166 {
 167         App::dialog_input->present();
 168 }
 169
 170 void _create_stock_dialog1()
 171 {
 172         DockDialog* dock_dialog(new DockDialog);
 173         dock_dialog->set_contents("canvases history");
 174         dock_dialog->set_composition_selector(true);
 175         dock_dialog->present();
 176 }
 177 void _create_stock_dialog2()
 178 {
 179         DockDialog* dock_dialog(new DockDialog);
 180         dock_dialog->set_contents("layers children keyframes | params");
 181         dock_dialog->present();
 182 }
 183
 184 static void
 185 show_dialog_color()
 186 {
 187         App::dialog_color->present();
 188 }
 189
 190 Toolbox::Toolbox():
 191         Gtk::Window(Gtk::WINDOW_TOPLEVEL),
 192         dialog_settings(this,"toolbox")
 193 {
 194         GRAB_HINT_DATA(
 195                 "toolbox",
 196 //#ifdef __APPLE__
 197                 Gdk::WINDOW_TYPE_HINT_NORMAL
 198 //#else
 199 //              Gdk::WINDOW_TYPE_HINT_UTILITY
 200 //#endif
 201         );
 202         set_keep_above(false);
 203         set_role("toolbox");
 204
 205
 206
 207         recent_files_menu= manage(new class Gtk::Menu());
 208
 209         Gtk::Menu       *filemenu       =manage(new class Gtk::Menu());
 210
 211         dock_dialogs=manage(new class Gtk::Menu());
 212
 213         dock_dialogs->items().push_back(Gtk::Menu_Helpers::MenuElem("Canvases, History",sigc::ptr_fun(_create_stock_dialog1)));
 214         dock_dialogs->items().push_back(Gtk::Menu_Helpers::MenuElem("Layers, Children , Params",sigc::ptr_fun(_create_stock_dialog2)));
 215         dock_dialogs->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
 216
 217
 218         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::NEW,
 219                 sigc::ptr_fun(&studio::App::new_instance)));
 220         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::OPEN,
 221                 sigc::ptr_fun(&studio::App::dialog_open)));
 222
 223         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Open Recent"),*recent_files_menu));
 224
 225         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID("synfig-saveall"),
 226                 sigc::ptr_fun(&studio::App::dialog_not_implemented)));
 227         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::CLOSE,
 228                 sigc::ptr_fun(close_selected_instance)));
 229         filemenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
 230         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Dialogs"),*dock_dialogs));
 231
 232         //filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Canvas Browser..."),
 233         //      sigc::mem_fun(studio::App::show_comp_view)));
 234         //filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Gradient Editor..."),
 235         //      sigc::mem_fun(show_dialog_gradient)));
 236         //filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Tool Options"),
 237         //      sigc::mem_fun(show_dialog_tool_options)));
 238         //filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Colors..."),
 239         //      sigc::mem_fun(show_dialog_color)));
 240         //filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Color Palette..."),
 241         //      sigc::mem_fun(show_dialog_palette)));
 242         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Input Devices..."),
 243                 sigc::ptr_fun(&show_dialog_input)));
 244         filemenu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Setup..."),
 245                 sigc::ptr_fun(&studio::App::show_setup)));
 246
 247         filemenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
 248         filemenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID(Gtk::Stock::QUIT),
 249                 sigc::ptr_fun(studio::App::quit)));
 250
 251         Gtk::Menu       *helpmenu = manage(new class Gtk::Menu());
 252         helpmenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::HELP,
 253                 sigc::ptr_fun(studio::App::dialog_not_implemented)));
 254         helpmenu->items().push_back(Gtk::Menu_Helpers::SeparatorElem());
 255         helpmenu->items().push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::StockID("synfig-about"),
 256                 sigc::ptr_fun(studio::App::dialog_about)));
 257
 258         Gtk::MenuBar *menubar1 = manage(new class Gtk::MenuBar());
 259         menubar1->items().push_back(Gtk::Menu_Helpers::MenuElem("_File",*filemenu));
 260         menubar1->items().push_back(Gtk::Menu_Helpers::MenuElem("_Help",*helpmenu));
 261
 262
 263         menubar1->show();
 264
 265         Gtk::Image *icon;
 266
 267         ADD_TOOLBOX_BUTTON(button_new,"gtk-new","New");
 268         ADD_TOOLBOX_BUTTON(button_open,"gtk-open","Open");
 269         ADD_TOOLBOX_BUTTON(button_save,"gtk-save","Save");
 270         ADD_TOOLBOX_BUTTON(button_saveas,"gtk-save-as","SaveAs");
 271         ADD_TOOLBOX_BUTTON(button_save_all,"synfig-saveall","Save All");
 272         TOOLBOX_BUTTON(button_undo,"gtk-undo","Undo");
 273         TOOLBOX_BUTTON(button_redo,"gtk-redo","Redo");
 274         ADD_TOOLBOX_BUTTON(button_about,"synfig-about","About Synfig Studio");
 275         ADD_TOOLBOX_BUTTON(button_color,"synfig-color","Color Dialog");
 276
 277         TOOLBOX_BUTTON(button_rotoscope_bline,"synfig-rotoscope_bline",_("Old Rotoscope BLine"));
 278         TOOLBOX_BUTTON(button_rotoscope_polygon,"synfig-rotoscope_polygon",_("Rotoscope Polygon"));
 279         TOOLBOX_BUTTON(button_eyedrop,"synfig-eyedrop",_("Eyedrop Tool"));
 280         TOOLBOX_BUTTON(button_rotoscope,"synfig-rotoscope_bline",_("Rotoscope 2"));
 281
 282
 283
 284         button_about->signal_clicked().connect(sigc::ptr_fun(studio::App::dialog_about));
 285         button_new->signal_clicked().connect(sigc::ptr_fun(studio::App::new_instance));
 286         button_open->signal_clicked().connect(sigc::ptr_fun(studio::App::dialog_open));
 287         button_save->signal_clicked().connect(sigc::ptr_fun(save_selected_instance));
 288         button_saveas->signal_clicked().connect(sigc::ptr_fun(save_as_selected_instance));
 289         button_save_all->signal_clicked().connect(sigc::ptr_fun(studio::App::dialog_not_implemented));
 290         button_undo->signal_clicked().connect(sigc::ptr_fun(studio::App::undo));
 291         button_redo->signal_clicked().connect(sigc::ptr_fun(studio::App::redo));
 292         button_color->signal_clicked().connect(sigc::ptr_fun(show_dialog_color));
 293
 294         // Create the file button cluster
 295         Gtk::Table *file_buttons=manage(new class Gtk::Table(4, 4, false));
 296         file_buttons->attach(*button_new,0,1,0,1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 297         file_buttons->attach(*button_open,1,2,0,1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 298         file_buttons->attach(*button_save,2,3,0,1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 299         file_buttons->attach(*button_saveas,3,4,0,1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 300         file_buttons->attach(*button_save_all,0,1,1,2, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 301         file_buttons->attach(*button_undo,1,2,1,2, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 302         file_buttons->attach(*button_redo,2,3,1,2, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 303         file_buttons->attach(*button_about,3,4,1,2, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 304         //file_buttons->attach(*button_color,0,1,2,3, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 305         file_buttons->show();
 306
 307         tool_table=manage(new class Gtk::Table(4, 4, false));
 308         tool_table->show();
 309         Gtk::HandleBox* handle_tools(manage(new Gtk::HandleBox()));
 310         handle_tools->add(*tool_table);
 311         handle_tools->show();
 312         handle_tools->set_handle_position(Gtk::POS_TOP);
 313         handle_tools->set_snap_edge(Gtk::POS_TOP);
 314
 315         Widget_Defaults* widget_defaults(manage(new Widget_Defaults()));
 316         widget_defaults->show();
 317         Gtk::HandleBox* handle_defaults(manage(new Gtk::HandleBox()));
 318         handle_defaults->add(*widget_defaults);
 319         handle_defaults->show();
 320         handle_defaults->set_handle_position(Gtk::POS_TOP);
 321         handle_defaults->set_snap_edge(Gtk::POS_TOP);
 322
 323         // Create the toplevel table
 324         Gtk::Table *table1 = manage(new class Gtk::Table(1, 2, false));
 325         table1->set_row_spacings(0);
 326         table1->set_col_spacings(0);
 327         table1->attach(*menubar1, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK, 0, 0);
 328         table1->attach(*file_buttons, 0, 1, 1, 2, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
 329         //table1->attach(*manage(new Gtk::Label(_("Tools"))), 0, 1, 2, 3, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
 330         table1->attach(*handle_tools, 0, 1, 3, 4, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
 331         table1->attach(*handle_defaults, 0, 1, 4, 5, Gtk::FILL|Gtk::EXPAND,Gtk::EXPAND|Gtk::FILL, 0, 0);
 332         table1->show_all();
 333
 334
 335
 336         // Set the parameters for this window
 337         add(*table1);
 338         set_title("Synfig Studio");
 339         set_modal(false);
 340         property_window_position().set_value(Gtk::WIN_POS_NONE);
 341         signal_delete_event().connect(sigc::ptr_fun(App::shutdown_request));
 342         set_resizable(false);
 343
 344
 345
 346         App::signal_instance_selected().connect(
 347                 sigc::hide(
 348                         sigc::mem_fun(*this,&studio::Toolbox::update_undo_redo)
 349                 )
 350         );
 351
 352         App::signal_recent_files_changed().connect(
 353                         sigc::mem_fun(*this,&studio::Toolbox::on_recent_files_changed)
 354         );
 355
 356         button_undo->set_sensitive(false);
 357         button_redo->set_sensitive(false);
 358         button_rotoscope_bline->set_sensitive(false);
 359         button_rotoscope->set_sensitive(false);
 360         button_rotoscope_polygon->set_sensitive(false);
 361         button_eyedrop->set_sensitive(false);
 362
 363
 364         std::list<Gtk::TargetEntry> listTargets;
 365         listTargets.push_back( Gtk::TargetEntry("text/plain") );
 366         listTargets.push_back( Gtk::TargetEntry("image") );
 367 //      listTargets.push_back( Gtk::TargetEntry("image/x-sif") );
 368
 369         drag_dest_set(listTargets);
 370         signal_drag_data_received().connect( sigc::mem_fun(*this, &studio::Toolbox::on_drop_drag_data_received) );
 371
 372         App::dock_manager->signal_dockable_registered().connect(sigc::mem_fun(*this,&Toolbox::dockable_registered));
 373
 374         changing_state_=false;
 375
 376
 377         add_accel_group(App::ui_manager()->get_accel_group());
 378
 379         App::signal_present_all().connect(sigc::mem_fun0(*this,&Toolbox::present));
 380 }
 381
 382 Toolbox::~Toolbox()
 383 {
 384         hide();
 385         //studio::App::cb.task("Toolbox: I was nailed!");
 386         //studio::App::quit();
 387
 388         if(studio::App::toolbox==this)
 389                 studio::App::toolbox=NULL;
 390
 391 }
 392
 393 void
 394 Toolbox::set_active_state(const String& statename)
 395 {
 396         std::map<synfig::String,Gtk::ToggleButton *>::iterator iter;
 397
 398         changing_state_=true;
 399
 400         synfigapp::Main::set_state(statename);
 401
 402         try
 403         {
 404
 405                 for(iter=state_button_map.begin();iter!=state_button_map.end();++iter)
 406                 {
 407                         if(iter->first==statename)
 408                         {
 409                                 if(!iter->second->get_active())
 410                                         iter->second->set_active(true);
 411                         }
 412                         else
 413                         {
 414                                 if(iter->second->get_active())
 415                                         iter->second->set_active(false);
 416                         }
 417                 }
 418         }
 419         catch(...)
 420         {
 421                 changing_state_=false;
 422                 throw;
 423         }
 424         changing_state_=false;
 425 }
 426
 427 void
 428 Toolbox::change_state(const synfig::String& statename)
 429 {
 430         etl::handle<studio::CanvasView> canvas_view(studio::App::get_selected_canvas_view());
 431         if(canvas_view)
 432         {
 433                 if(statename==canvas_view->get_smach().get_state_name())
 434                 {
 435                         return;
 436                 }
 437
 438                 if(state_button_map.count(statename))
 439                 {
 440                         state_button_map[statename]->clicked();
 441                 }
 442                 else
 443                 {
 444                         synfig::error("Unknown state \"%s\"",statename.c_str());
 445                 }
 446         }
 447 }
 448
 449 void
 450 Toolbox::change_state_(const Smach::state_base *state)
 451 {
 452         if(changing_state_)
 453                 return;
 454         changing_state_=true;
 455
 456         try
 457         {
 458                 etl::handle<studio::CanvasView> canvas_view(studio::App::get_selected_canvas_view());
 459                 if(canvas_view)
 460                 {
 461                         if(state->get_name()==String("normal"))
 462                         {
 463                                 canvas_view->get_smach().egress();
 464                         }
 465                         else
 466                         {
 467                                 canvas_view->get_smach().enter(state);
 468                         }
 469                 }
 470                 else
 471                         refresh();
 472         }
 473         catch(...)
 474         {
 475                 changing_state_=false;
 476                 throw;
 477         }
 478
 479         changing_state_=false;
 480 }
 481
 482 void
 483 Toolbox::add_state(const Smach::state_base *state)
 484 {
 485         Gtk::Image *icon;
 486
 487         assert(state);
 488
 489         String name=state->get_name();
 490
 491         Gtk::ToggleButton* button;
 492         button=manage(new class Gtk::ToggleButton());
 493
 494         icon=manage(new Gtk::Image(Gtk::StockID("synfig-"+name),Gtk::IconSize(4)));
 495         button->add(*icon);
 496         tooltips.set_tip(*button,name);
 497         icon->show();
 498         button->show();
 499
 500
 501
 502
 503         int row=state_button_map.size()/4;
 504         int col=state_button_map.size()%4;
 505
 506         tool_table->attach(*button,col,col+1,row,row+1, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 507
 508         state_button_map[name]=button;
 509
 510         button->signal_clicked().connect(
 511                 sigc::bind(
 512                         sigc::mem_fun(*this,&studio::Toolbox::change_state_),
 513                         state
 514                 )
 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 rotoscope 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         // Check to see if the file is already on the list.
 569         // If it is, then remove it from the list
 570         for(iter=App::get_recent_files().begin();iter!=App::get_recent_files().end();iter++)
 571                 recent_files_menu->items().push_back(Gtk::Menu_Helpers::MenuElem(basename(*iter),
 572                         sigc::hide_return(sigc::bind(sigc::ptr_fun(&App::open),*iter))
 573                 ));
 574
 575         // HACK
 576         show();
 577 }
 578
 579 void
 580 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)
 581 {
 582         // We will make this true once we have a solid drop
 583         bool success(false);
 584
 585         if ((selection_data_.get_length() >= 0) && (selection_data_.get_format() == 8))
 586         {
 587                 synfig::String selection_data((gchar *)(selection_data_.get_data()));
 588
 589                 // For some reason, GTK hands us a list of URL's seperated
 590                 // by not only Carrage-Returns, but also Line-Feeds.
 591                 // Line-Feeds will mess us up. Remove all the line-feeds.
 592                 while(selection_data.find_first_of('\r')!=synfig::String::npos)
 593                         selection_data.erase(selection_data.begin()+selection_data.find_first_of('\r'));
 594
 595                 std::stringstream stream(selection_data);
 596
 597                 while(stream)
 598                 {
 599                         synfig::String filename,URI;
 600                         getline(stream,filename);
 601
 602                         // If we don't have a filename, move on.
 603                         if(filename.empty())
 604                                 continue;
 605
 606                         // Make sure this URL is of the "file://" type.
 607                         URI=String(filename.begin(),filename.begin()+sizeof("file://")-1);
 608                         if(URI!="file://")
 609                         {
 610                                 synfig::warning("Unknown URI (%s) in \"%s\"",URI.c_str(),filename.c_str());
 611                                 continue;
 612                         }
 613
 614                         // Strip the "file://" part from the filename
 615                         filename=synfig::String(filename.begin()+sizeof("file://")-1,filename.end());
 616
 617                         synfig::info("Attempting to open "+filename);
 618                         if(App::open(filename))
 619                                 success=true;
 620                         else
 621                                 synfig::error("Drop failed: Unable to open "+filename);
 622                 }
 623         }
 624         else
 625                 synfig::error("Drop failed: bad selection data");
 626
 627         // Finish the drag
 628         context->drag_finish(success, false, time);
 629 }
 630
 631 void
 632 Toolbox::dockable_registered(Dockable* x)
 633 {
 634         dock_dialogs->items().push_back(
 635                 Gtk::Menu_Helpers::MenuElem(
 636                         x->get_local_name(),
 637                         sigc::mem_fun(
 638                                 *x,
 639                                 &Dockable::present
 640                         )
 641                 )
 642         );
 643 }