src/dialogs/layers-panel.cpp

   1 /*
   2  * A simple panel for layers
   3  *
   4  * Authors:
   5  *   Jon A. Cruz
   6  *
   7  * Copyright (C) 2006 Jon A. Cruz
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11 #ifdef HAVE_CONFIG_H
  12 # include <config.h>
  13 #endif
  14
  15 #include <glibmm/i18n.h>
  16
  17 #include <gtk/gtkstock.h>
  18 #include <gtk/gtkmain.h>
  19
  20 #include "inkscape.h"
  21
  22 #include "layers-panel.h"
  23
  24 #include "layer-manager.h"
  25 #include "layer-fns.h"
  26
  27 #include "verbs.h"
  28 #include "helper/action.h"
  29
  30 #include "document.h"
  31 #include "desktop.h"
  32 #include "sp-object.h"
  33 #include "sp-item.h"
  34 #include "widgets/icon.h"
  35 #include <gtkmm/widget.h>
  36 #include "prefs-utils.h"
  37 #include "xml/repr.h"
  38 #include "svg/css-ostringstream.h"
  39 #include "desktop-style.h"
  40
  41 //#define DUMP_LAYERS 1
  42
  43 namespace Inkscape {
  44 namespace UI {
  45 namespace Dialogs {
  46
  47 LayersPanel&
  48 LayersPanel::getInstance()
  49 {
  50     return *new LayersPanel();
  51 }
  52
  53 enum {
  54     COL_VISIBLE = 1,
  55     COL_LOCKED
  56 };
  57
  58 enum {
  59     BUTTON_NEW = 0,
  60     BUTTON_RENAME,
  61     BUTTON_TOP,
  62     BUTTON_BOTTOM,
  63     BUTTON_UP,
  64     BUTTON_DOWN,
  65 //    BUTTON_DUPLICATE,
  66     BUTTON_DELETE,
  67     BUTTON_SOLO
  68 };
  69
  70 class ImageToggler : public Gtk::CellRendererPixbuf {
  71 public:
  72     ImageToggler( char const* on, char const* off) :
  73         Glib::ObjectBase(typeid(ImageToggler)),
  74         Gtk::CellRendererPixbuf(),
  75         _pixOnName(on),
  76         _pixOffName(off),
  77         _property_active(*this, "active", false),
  78         _property_activatable(*this, "activatable", true),
  79         _property_pixbuf_on(*this, "pixbuf_on", Glib::RefPtr<Gdk::Pixbuf>(0)),
  80         _property_pixbuf_off(*this, "pixbuf_off", Glib::RefPtr<Gdk::Pixbuf>(0))
  81     {
  82         property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE;
  83
  84         Gtk::Widget* thingie = sp_icon_get_icon(_pixOnName.c_str(), Inkscape::ICON_SIZE_DECORATION);
  85         if ( thingie ) {
  86             if ( SP_IS_ICON(thingie->gobj()) ) {
  87                 SPIcon* icon = SP_ICON(thingie->gobj());
  88                 sp_icon_fetch_pixbuf( icon );
  89                 _property_pixbuf_on = Glib::wrap( icon->pb, true );
  90             }
  91             delete thingie;
  92         }
  93         thingie = sp_icon_get_icon(_pixOffName.c_str(), Inkscape::ICON_SIZE_DECORATION);
  94         if ( thingie ) {
  95             if ( SP_IS_ICON(thingie->gobj()) ) {
  96                 SPIcon* icon = SP_ICON(thingie->gobj());
  97                 sp_icon_fetch_pixbuf( icon );
  98                 _property_pixbuf_off = Glib::wrap( icon->pb, true );
  99             }
 100             delete thingie;
 101         }
 102         property_pixbuf() = _property_pixbuf_off.get_value();
 103     }
 104
 105     sigc::signal<void, const Glib::ustring&> signal_toggled()
 106     {
 107         return _signal_toggled;
 108     }
 109
 110     sigc::signal<void, GdkEvent const *> signal_pre_toggle()
 111     {
 112         return _signal_pre_toggle;
 113     }
 114
 115     Glib::PropertyProxy<bool> property_active() { return _property_active.get_proxy(); }
 116     Glib::PropertyProxy<bool> property_activatable() { return _property_activatable.get_proxy(); }
 117     Glib::PropertyProxy< Glib::RefPtr<Gdk::Pixbuf> > property_pixbuf_on();
 118     Glib::PropertyProxy< Glib::RefPtr<Gdk::Pixbuf> > property_pixbuf_off();
 119 //  virtual Glib::PropertyProxy_Base _property_renderable(); //override
 120
 121 protected:
 122
 123     virtual void get_size_vfunc( Gtk::Widget& widget,
 124                                  const Gdk::Rectangle* cell_area,
 125                                  int* x_offset,
 126                                  int* y_offset,
 127                                  int* width,
 128                                  int* height ) const
 129     {
 130         Gtk::CellRendererPixbuf::get_size_vfunc( widget, cell_area, x_offset, y_offset, width, height );
 131
 132         if ( width ) {
 133             *width += (*width) >> 1;
 134         }
 135         if ( height ) {
 136             *height += (*height) >> 1;
 137         }
 138     }
 139
 140
 141     virtual void render_vfunc( const Glib::RefPtr<Gdk::Drawable>& window,
 142                                Gtk::Widget& widget,
 143                                const Gdk::Rectangle& background_area,
 144                                const Gdk::Rectangle& cell_area,
 145                                const Gdk::Rectangle& expose_area,
 146                                Gtk::CellRendererState flags )
 147     {
 148         property_pixbuf() = _property_active.get_value() ? _property_pixbuf_on : _property_pixbuf_off;
 149         Gtk::CellRendererPixbuf::render_vfunc( window, widget, background_area, cell_area, expose_area, flags );
 150     }
 151
 152     virtual bool activate_vfunc(GdkEvent* event,
 153                                 Gtk::Widget& /*widget*/,
 154                                 const Glib::ustring& path,
 155                                 const Gdk::Rectangle& /*background_area*/,
 156                                 const Gdk::Rectangle& /*cell_area*/,
 157                                 Gtk::CellRendererState /*flags*/)
 158     {
 159         _signal_pre_toggle.emit(event);
 160         _signal_toggled.emit(path);
 161
 162         return false;
 163     }
 164
 165
 166 private:
 167     Glib::ustring _pixOnName;
 168     Glib::ustring _pixOffName;
 169
 170     Glib::Property<bool> _property_active;
 171     Glib::Property<bool> _property_activatable;
 172     Glib::Property< Glib::RefPtr<Gdk::Pixbuf> > _property_pixbuf_on;
 173     Glib::Property< Glib::RefPtr<Gdk::Pixbuf> > _property_pixbuf_off;
 174
 175     sigc::signal<void, const Glib::ustring&> _signal_toggled;
 176     sigc::signal<void, GdkEvent const *> _signal_pre_toggle;
 177 };
 178
 179 class LayersPanel::InternalUIBounce
 180 {
 181 public:
 182     int _actionCode;
 183     SPObject* _target;
 184 };
 185
 186 static gboolean layers_panel_activated( GtkObject */*object*/, GdkEvent * /*event*/, gpointer data )
 187 {
 188     if ( data )
 189     {
 190         LayersPanel* panel = reinterpret_cast<LayersPanel*>(data);
 191         panel->setDesktop(panel->getDesktop());
 192     }
 193
 194     return FALSE;
 195 }
 196
 197
 198 void LayersPanel::_styleButton( Gtk::Button& btn, SPDesktop *desktop, unsigned int code, char const* iconName, char const* fallback )
 199 {
 200     bool set = false;
 201
 202     if ( iconName ) {
 203         GtkWidget *child = sp_icon_new( Inkscape::ICON_SIZE_SMALL_TOOLBAR, iconName );
 204         gtk_widget_show( child );
 205         btn.add( *manage(Glib::wrap(child)) );
 206         set = true;
 207     }
 208
 209     if ( desktop ) {
 210         Verb *verb = Verb::get( code );
 211         if ( verb ) {
 212             SPAction *action = verb->get_action(desktop);
 213             if ( !set && action && action->image ) {
 214                 GtkWidget *child = sp_icon_new( Inkscape::ICON_SIZE_SMALL_TOOLBAR, action->image );
 215                 gtk_widget_show( child );
 216                 btn.add( *manage(Glib::wrap(child)) );
 217                 set = true;
 218             }
 219
 220             if ( action && action->tip ) {
 221                 _tips.set_tip( btn, action->tip );
 222             }
 223         }
 224     }
 225
 226     if ( !set && fallback ) {
 227         btn.set_label( fallback );
 228     }
 229 }
 230
 231
 232 Gtk::MenuItem& LayersPanel::_addPopupItem( SPDesktop *desktop, unsigned int code, char const* iconName, char const* fallback, int id )
 233 {
 234     GtkWidget* iconWidget = 0;
 235     const char* label = 0;
 236
 237     if ( iconName ) {
 238         iconWidget = sp_icon_new( Inkscape::ICON_SIZE_MENU, iconName );
 239     }
 240
 241     if ( desktop ) {
 242         Verb *verb = Verb::get( code );
 243         if ( verb ) {
 244             SPAction *action = verb->get_action(desktop);
 245             if ( !iconWidget && action && action->image ) {
 246                 iconWidget = sp_icon_new( Inkscape::ICON_SIZE_MENU, action->image );
 247             }
 248
 249             if ( action ) {
 250                 label = action->name;
 251             }
 252         }
 253     }
 254
 255     if ( !label && fallback ) {
 256         label = fallback;
 257     }
 258
 259     Gtk::Widget* wrapped = 0;
 260     if ( iconWidget ) {
 261         wrapped = manage(Glib::wrap(iconWidget));
 262         wrapped->show();
 263     }
 264
 265
 266
 267     Gtk::Menu::MenuList& menulist = _popupMenu.items();
 268
 269     if ( wrapped ) {
 270         menulist.push_back( Gtk::Menu_Helpers::ImageMenuElem( label, *wrapped, sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), id)) );
 271     } else {
 272         menulist.push_back( Gtk::Menu_Helpers::MenuElem( label, sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), id)) );
 273     }
 274     return menulist.back();
 275 }
 276
 277 void LayersPanel::_fireAction( unsigned int code )
 278 {
 279     if ( _desktop ) {
 280         Verb *verb = Verb::get( code );
 281         if ( verb ) {
 282             SPAction *action = verb->get_action(_desktop);
 283             if ( action ) {
 284                 sp_action_perform( action, NULL );
 285 //             } else {
 286 //                 g_message("no action");
 287             }
 288 //         } else {
 289 //             g_message("no verb for %u", code);
 290         }
 291 //     } else {
 292 //         g_message("no active desktop");
 293     }
 294 }
 295
 296 //     SP_VERB_LAYER_NEXT,
 297 //     SP_VERB_LAYER_PREV,
 298 void LayersPanel::_takeAction( int val )
 299 {
 300     if ( !_pending ) {
 301         _pending = new InternalUIBounce();
 302         _pending->_actionCode = val;
 303         _pending->_target = _selectedLayer();
 304         Glib::signal_timeout().connect( sigc::mem_fun(*this, &LayersPanel::_executeAction), 0 );
 305     }
 306 }
 307
 308 bool LayersPanel::_executeAction()
 309 {
 310     // Make sure selected layer hasn't changed since the action was triggered
 311     if ( _pending
 312          && (
 313              (_pending->_actionCode == BUTTON_NEW)
 314              || !( (_desktop && _desktop->currentLayer())
 315                    && (_desktop->currentLayer() != _pending->_target)
 316                  )
 317              )
 318         ) {
 319         int val = _pending->_actionCode;
 320 //        SPObject* target = _pending->_target;
 321
 322         switch ( val ) {
 323             case BUTTON_NEW:
 324             {
 325                 _fireAction( SP_VERB_LAYER_NEW );
 326             }
 327             break;
 328             case BUTTON_RENAME:
 329             {
 330                 _fireAction( SP_VERB_LAYER_RENAME );
 331             }
 332             break;
 333             case BUTTON_TOP:
 334             {
 335                 _fireAction( SP_VERB_LAYER_TO_TOP );
 336             }
 337             break;
 338             case BUTTON_BOTTOM:
 339             {
 340                 _fireAction( SP_VERB_LAYER_TO_BOTTOM );
 341             }
 342             break;
 343             case BUTTON_UP:
 344             {
 345                 _fireAction( SP_VERB_LAYER_RAISE );
 346             }
 347             break;
 348             case BUTTON_DOWN:
 349             {
 350                 _fireAction( SP_VERB_LAYER_LOWER );
 351             }
 352             break;
 353             case BUTTON_DELETE:
 354             {
 355                 _fireAction( SP_VERB_LAYER_DELETE );
 356             }
 357             case BUTTON_SOLO:
 358             {
 359                 _fireAction( SP_VERB_LAYER_SOLO );
 360             }
 361             break;
 362         }
 363
 364         delete _pending;
 365         _pending = 0;
 366     }
 367
 368     return false;
 369 }
 370
 371 class LayersPanel::ModelColumns : public Gtk::TreeModel::ColumnRecord
 372 {
 373 public:
 374
 375     ModelColumns()
 376     {
 377         add(_colObject);
 378         add(_colVisible);
 379         add(_colLocked);
 380         add(_colLabel);
 381     }
 382     virtual ~ModelColumns() {}
 383
 384     Gtk::TreeModelColumn<SPObject*> _colObject;
 385     Gtk::TreeModelColumn<Glib::ustring> _colLabel;
 386     Gtk::TreeModelColumn<bool> _colVisible;
 387     Gtk::TreeModelColumn<bool> _colLocked;
 388 };
 389
 390 void LayersPanel::_updateLayer( SPObject *layer ) {
 391     _store->foreach( sigc::bind<SPObject*>(sigc::mem_fun(*this, &LayersPanel::_checkForUpdated), layer) );
 392 }
 393
 394 bool LayersPanel::_checkForUpdated(const Gtk::TreePath &/*path*/, const Gtk::TreeIter& iter, SPObject* layer)
 395 {
 396     bool stopGoing = false;
 397     Gtk::TreeModel::Row row = *iter;
 398     Glib::ustring tmp = row[_model->_colLabel];
 399     if ( layer == row[_model->_colObject] )
 400     {
 401         row[_model->_colLabel] = layer->label() ? layer->label() : SP_OBJECT_ID(layer);
 402         row[_model->_colVisible] = SP_IS_ITEM(layer) ? !SP_ITEM(layer)->isHidden() : false;
 403         row[_model->_colLocked] = SP_IS_ITEM(layer) ? SP_ITEM(layer)->isLocked() : false;
 404
 405         stopGoing = true;
 406     }
 407
 408     return stopGoing;
 409 }
 410
 411 void LayersPanel::_selectLayer( SPObject *layer ) {
 412     if ( !layer || (_desktop && _desktop->doc() && (layer == _desktop->doc()->root)) ) {
 413         if ( _tree.get_selection()->count_selected_rows() != 0 ) {
 414             _tree.get_selection()->unselect_all();
 415         }
 416     } else {
 417         _store->foreach( sigc::bind<SPObject*>(sigc::mem_fun(*this, &LayersPanel::_checkForSelected), layer) );
 418     }
 419
 420     _checkTreeSelection();
 421 }
 422
 423 bool LayersPanel::_checkForSelected(const Gtk::TreePath &path, const Gtk::TreeIter& iter, SPObject* layer)
 424 {
 425     bool stopGoing = false;
 426
 427     Gtk::TreeModel::Row row = *iter;
 428     if ( layer == row[_model->_colObject] )
 429     {
 430         _tree.expand_to_path( path );
 431
 432         Glib::RefPtr<Gtk::TreeSelection> select = _tree.get_selection();
 433
 434         select->select(iter);
 435
 436         stopGoing = true;
 437     }
 438
 439     return stopGoing;
 440 }
 441
 442 void LayersPanel::_layersChanged()
 443 {
 444 //    g_message("_layersChanged()");
 445     SPDocument* document = _desktop->doc();
 446     SPObject* root = document->root;
 447     if ( root ) {
 448         _selectedConnection.block();
 449         if ( _mgr && _mgr->includes( root ) ) {
 450             SPObject* target = _desktop->currentLayer();
 451             _store->clear();
 452
 453 #if DUMP_LAYERS
 454             g_message("root:%p  {%s}   [%s]", root, root->id, root->label() );
 455 #endif // DUMP_LAYERS
 456             _addLayer( document, root, 0, target, 0 );
 457         }
 458         _selectedConnection.unblock();
 459     }
 460 }
 461
 462 void LayersPanel::_addLayer( SPDocument* doc, SPObject* layer, Gtk::TreeModel::Row* parentRow, SPObject* target, int level )
 463 {
 464     if ( layer && (level < _maxNestDepth) ) {
 465         unsigned int counter = _mgr->childCount(layer);
 466         for ( unsigned int i = 0; i < counter; i++ ) {
 467             SPObject *child = _mgr->nthChildOf(layer, i);
 468             if ( child ) {
 469 #if DUMP_LAYERS
 470                 g_message(" %3d    layer:%p  {%s}   [%s]", level, child, child->id, child->label() );
 471 #endif // DUMP_LAYERS
 472
 473                 Gtk::TreeModel::iterator iter = parentRow ? _store->prepend(parentRow->children()) : _store->prepend();
 474                 Gtk::TreeModel::Row row = *iter;
 475                 row[_model->_colObject] = child;
 476                 row[_model->_colLabel] = child->label() ? child->label() : SP_OBJECT_ID(child);
 477                 row[_model->_colVisible] = SP_IS_ITEM(child) ? !SP_ITEM(child)->isHidden() : false;
 478                 row[_model->_colLocked] = SP_IS_ITEM(child) ? SP_ITEM(child)->isLocked() : false;
 479
 480                 if ( target && child == target ) {
 481                     _tree.expand_to_path( _store->get_path(iter) );
 482
 483                     Glib::RefPtr<Gtk::TreeSelection> select = _tree.get_selection();
 484                     select->select(iter);
 485
 486                     _checkTreeSelection();
 487                 }
 488
 489                 _addLayer( doc, child, &row, target, level + 1 );
 490             }
 491         }
 492     }
 493 }
 494
 495 SPObject* LayersPanel::_selectedLayer()
 496 {
 497     SPObject* obj = 0;
 498
 499     Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected();
 500     if ( iter ) {
 501         Gtk::TreeModel::Row row = *iter;
 502         obj = row[_model->_colObject];
 503     }
 504
 505     return obj;
 506 }
 507
 508 void LayersPanel::_pushTreeSelectionToCurrent()
 509 {
 510     SPObject* inTree = _selectedLayer();
 511     // TODO hunt down the possible API abuse in getting NULL
 512     if ( _desktop->currentRoot() ) {
 513         if ( inTree ) {
 514             SPObject* curr = _desktop->currentLayer();
 515             if ( curr != inTree ) {
 516                 _mgr->setCurrentLayer( inTree );
 517             }
 518         } else {
 519             _mgr->setCurrentLayer( _desktop->doc()->root );
 520         }
 521     }
 522 }
 523
 524 void LayersPanel::_checkTreeSelection()
 525 {
 526     bool sensitive = false;
 527     bool sensitiveNonTop = false;
 528     bool sensitiveNonBottom = false;
 529     if ( _tree.get_selection()->count_selected_rows() > 0 ) {
 530         sensitive = true;
 531
 532         SPObject* inTree = _selectedLayer();
 533         if ( inTree ) {
 534
 535             sensitiveNonTop = (Inkscape::next_layer(inTree->parent, inTree) != 0);
 536             sensitiveNonBottom = (Inkscape::previous_layer(inTree->parent, inTree) != 0);
 537
 538         }
 539     }
 540
 541
 542     for ( std::vector<Gtk::Widget*>::iterator it = _watching.begin(); it != _watching.end(); ++it ) {
 543         (*it)->set_sensitive( sensitive );
 544     }
 545     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonTop.begin(); it != _watchingNonTop.end(); ++it ) {
 546         (*it)->set_sensitive( sensitiveNonTop );
 547     }
 548     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonBottom.begin(); it != _watchingNonBottom.end(); ++it ) {
 549         (*it)->set_sensitive( sensitiveNonBottom );
 550     }
 551 }
 552
 553 void LayersPanel::_preToggle( GdkEvent const *event )
 554 {
 555     if ( _toggleEvent ) {
 556         gdk_event_free(_toggleEvent);
 557         _toggleEvent = 0;
 558     }
 559
 560     if ( event && (event->type == GDK_BUTTON_PRESS) ) {
 561         // Make a copy so we can keep it around.
 562         _toggleEvent = gdk_event_copy(const_cast<GdkEvent*>(event));
 563     }
 564 }
 565
 566 void LayersPanel::_toggled( Glib::ustring const& str, int targetCol )
 567 {
 568     Gtk::TreeModel::Children::iterator iter = _tree.get_model()->get_iter(str);
 569     Gtk::TreeModel::Row row = *iter;
 570
 571     Glib::ustring tmp = row[_model->_colLabel];
 572
 573     SPObject* obj = row[_model->_colObject];
 574     SPItem* item = ( obj && SP_IS_ITEM(obj) ) ? SP_ITEM(obj) : 0;
 575     if ( item ) {
 576         switch ( targetCol ) {
 577             case COL_VISIBLE:
 578             {
 579                 bool newValue = !row[_model->_colVisible];
 580                 row[_model->_colVisible] = newValue;
 581                 item->setHidden( !newValue  );
 582                 item->updateRepr();
 583                 sp_document_done( _desktop->doc() , SP_VERB_DIALOG_LAYERS,
 584                                   newValue? _("Unhide layer") : _("Hide layer"));
 585             }
 586             break;
 587
 588             case COL_LOCKED:
 589             {
 590                 bool newValue = !row[_model->_colLocked];
 591                 row[_model->_colLocked] = newValue;
 592                 item->setLocked( newValue );
 593                 item->updateRepr();
 594                 sp_document_done( _desktop->doc() , SP_VERB_DIALOG_LAYERS,
 595                                   newValue? _("Lock layer") : _("Unlock layer"));
 596             }
 597             break;
 598         }
 599     }
 600 }
 601
 602 void LayersPanel::_handleButtonEvent(GdkEventButton* evt)
 603 {
 604     // TODO - fix to a better is-popup function
 605     if ( (evt->type == GDK_BUTTON_PRESS) && (evt->button == 3) ) {
 606
 607
 608         {
 609             Gtk::TreeModel::Path path;
 610             Gtk::TreeViewColumn* col = 0;
 611             int x = static_cast<int>(evt->x);
 612             int y = static_cast<int>(evt->y);
 613             int x2 = 0;
 614             int y2 = 0;
 615             if ( _tree.get_path_at_pos( x, y,
 616                                         path, col,
 617                                         x2, y2 ) ) {
 618                 _checkTreeSelection();
 619                 _popupMenu.popup(evt->button, evt->time);
 620             }
 621         }
 622
 623     }
 624 }
 625
 626 void LayersPanel::_handleRowChange( Gtk::TreeModel::Path const& /*path*/, Gtk::TreeModel::iterator const& iter )
 627 {
 628     Gtk::TreeModel::Row row = *iter;
 629     if ( row ) {
 630         SPObject* obj = row[_model->_colObject];
 631         if ( obj ) {
 632             gchar const* oldLabel = obj->label();
 633             Glib::ustring tmp = row[_model->_colLabel];
 634             if ( oldLabel && oldLabel[0] && !tmp.empty() && (tmp != oldLabel) ) {
 635                 _mgr->renameLayer( obj, tmp.c_str() );
 636                 row[_model->_colLabel] = obj->label();
 637             }
 638         }
 639     }
 640 }
 641
 642 bool LayersPanel::_rowSelectFunction( Glib::RefPtr<Gtk::TreeModel> const & /*model*/, Gtk::TreeModel::Path const & /*path*/, bool currentlySelected )
 643 {
 644     bool val = true;
 645     if ( !currentlySelected && _toggleEvent )
 646     {
 647         GdkEvent* event = gtk_get_current_event();
 648         if ( event ) {
 649             // (keep these checks separate, so we know when to call gdk_event_free()
 650             if ( event->type == GDK_BUTTON_PRESS ) {
 651                 GdkEventButton const* target = reinterpret_cast<GdkEventButton const*>(_toggleEvent);
 652                 GdkEventButton const* evtb = reinterpret_cast<GdkEventButton const*>(event);
 653
 654                 if ( (evtb->window == target->window)
 655                      && (evtb->send_event == target->send_event)
 656                      && (evtb->time == target->time)
 657                      && (evtb->state == target->state)
 658                     )
 659                 {
 660                     // Ooooh! It's a magic one
 661                     val = false;
 662                 }
 663             }
 664             gdk_event_free(event);
 665         }
 666     }
 667     return val;
 668 }
 669
 670 /**
 671  * Constructor
 672  */
 673 LayersPanel::LayersPanel() :
 674     UI::Widget::Panel("", "dialogs.layers", SP_VERB_DIALOG_LAYERS),
 675     _maxNestDepth(20),
 676     _mgr(0),
 677     _desktop(0),
 678     _model(0),
 679     _pending(0),
 680     _toggleEvent(0),
 681     _compositeSettings(SP_VERB_DIALOG_LAYERS, "layers", UI::Widget::SimpleFilterModifier::BLEND)
 682 {
 683     _maxNestDepth = prefs_get_int_attribute_limited("dialogs.layers", "maxDepth", 20, 1, 1000);
 684
 685     ModelColumns *zoop = new ModelColumns();
 686     _model = zoop;
 687
 688     _store = Gtk::TreeStore::create( *zoop );
 689
 690     _tree.set_model( _store );
 691     _tree.set_headers_visible(false);
 692
 693     ImageToggler* eyeRenderer = manage( new ImageToggler("visible", "hidden") );
 694     int visibleColNum = _tree.append_column("vis", *eyeRenderer) - 1;
 695     eyeRenderer->signal_pre_toggle().connect( sigc::mem_fun(*this, &LayersPanel::_preToggle) );
 696     eyeRenderer->signal_toggled().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_toggled), (int)COL_VISIBLE) );
 697     eyeRenderer->property_activatable() = true;
 698     Gtk::TreeViewColumn* col = _tree.get_column(visibleColNum);
 699     if ( col ) {
 700         col->add_attribute( eyeRenderer->property_active(), _model->_colVisible );
 701     }
 702
 703     ImageToggler * renderer = manage( new ImageToggler("width_height_lock", "lock_unlocked") );
 704     int lockedColNum = _tree.append_column("lock", *renderer) - 1;
 705     renderer->signal_pre_toggle().connect( sigc::mem_fun(*this, &LayersPanel::_preToggle) );
 706     renderer->signal_toggled().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_toggled), (int)COL_LOCKED) );
 707     renderer->property_activatable() = true;
 708     col = _tree.get_column(lockedColNum);
 709     if ( col ) {
 710         col->add_attribute( renderer->property_active(), _model->_colLocked );
 711     }
 712
 713     int nameColNum = _tree.append_column_editable("Name", _model->_colLabel) - 1;
 714
 715     _tree.set_expander_column( *_tree.get_column(nameColNum) );
 716
 717     _compositeSettings.setSubject(&_subject);
 718
 719     _selectedConnection = _tree.get_selection()->signal_changed().connect( sigc::mem_fun(*this, &LayersPanel::_pushTreeSelectionToCurrent) );
 720     _tree.get_selection()->set_select_function( sigc::mem_fun(*this, &LayersPanel::_rowSelectFunction) );
 721
 722     _tree.get_model()->signal_row_changed().connect( sigc::mem_fun(*this, &LayersPanel::_handleRowChange) );
 723     _tree.signal_button_press_event().connect_notify( sigc::mem_fun(*this, &LayersPanel::_handleButtonEvent) );
 724
 725     _scroller.add( _tree );
 726     _scroller.set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC );
 727
 728     _watching.push_back( &_compositeSettings );
 729
 730     _getContents()->pack_start( _scroller, Gtk::PACK_EXPAND_WIDGET );
 731
 732     _getContents()->pack_end(_compositeSettings, Gtk::PACK_SHRINK);
 733     _getContents()->pack_end(_buttonsRow, Gtk::PACK_SHRINK);
 734
 735     SPDesktop* targetDesktop = getDesktop();
 736
 737     _buttonsRow.set_child_min_width( 16 );
 738
 739     Gtk::Button* btn = manage( new Gtk::Button() );
 740     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_NEW, GTK_STOCK_ADD, _("New") );
 741     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_NEW) );
 742     _buttonsRow.add( *btn );
 743
 744     btn = manage( new Gtk::Button() );
 745     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_TO_TOP, GTK_STOCK_GOTO_TOP, _("Top") );
 746     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_TOP) );
 747     _watchingNonTop.push_back( btn );
 748     _buttonsRow.add( *btn );
 749
 750     btn = manage( new Gtk::Button() );
 751     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_RAISE, GTK_STOCK_GO_UP, _("Up") );
 752     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_UP) );
 753     _watchingNonTop.push_back( btn );
 754     _buttonsRow.add( *btn );
 755
 756     btn = manage( new Gtk::Button() );
 757     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_LOWER, GTK_STOCK_GO_DOWN, _("Dn") );
 758     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DOWN) );
 759     _watchingNonBottom.push_back( btn );
 760     _buttonsRow.add( *btn );
 761
 762     btn = manage( new Gtk::Button() );
 763     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_TO_BOTTOM, GTK_STOCK_GOTO_BOTTOM, _("Bot") );
 764     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_BOTTOM) );
 765     _watchingNonBottom.push_back( btn );
 766     _buttonsRow.add( *btn );
 767
 768 //     btn = manage( new Gtk::Button("Dup") );
 769 //     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DUPLICATE) );
 770 //     _buttonsRow.add( *btn );
 771
 772     btn = manage( new Gtk::Button() );
 773     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_DELETE, GTK_STOCK_REMOVE, _("X") );
 774     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DELETE) );
 775     _watching.push_back( btn );
 776     _buttonsRow.add( *btn );
 777
 778
 779
 780
 781     // -------------------------------------------------------
 782     {
 783         _watching.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_RENAME, 0, "Rename", (int)BUTTON_RENAME ) );
 784         _watching.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_NEW, 0, "New", (int)BUTTON_NEW ) );
 785         _watching.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_SOLO, 0, "Solo", (int)BUTTON_SOLO ) );
 786
 787          _popupMenu.items().push_back( Gtk::Menu_Helpers::SeparatorElem() );
 788
 789         _watchingNonTop.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_RAISE, GTK_STOCK_GO_UP, "Up", (int)BUTTON_UP ) );
 790         _watchingNonBottom.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_LOWER, GTK_STOCK_GO_DOWN, "Down", (int)BUTTON_DOWN ) );
 791
 792         _popupMenu.show_all_children();
 793     }
 794     // -------------------------------------------------------
 795
 796
 797
 798     for ( std::vector<Gtk::Widget*>::iterator it = _watching.begin(); it != _watching.end(); ++it ) {
 799         (*it)->set_sensitive( false );
 800     }
 801     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonTop.begin(); it != _watchingNonTop.end(); ++it ) {
 802         (*it)->set_sensitive( false );
 803     }
 804     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonBottom.begin(); it != _watchingNonBottom.end(); ++it ) {
 805         (*it)->set_sensitive( false );
 806     }
 807
 808     g_signal_connect( G_OBJECT(INKSCAPE), "activate_desktop", G_CALLBACK( layers_panel_activated ), this );
 809     setDesktop( targetDesktop );
 810
 811     show_all_children();
 812
 813     // restorePanelPrefs();
 814 }
 815
 816 LayersPanel::~LayersPanel()
 817 {
 818     _compositeSettings.setSubject(NULL);
 819
 820     if ( _model )
 821     {
 822         delete _model;
 823     }
 824
 825     if ( _toggleEvent )
 826     {
 827         gdk_event_free( _toggleEvent );
 828         _toggleEvent = 0;
 829     }
 830 }
 831
 832
 833 void LayersPanel::setDesktop( SPDesktop* desktop )
 834 {
 835     Panel::setDesktop(desktop);
 836
 837     if ( desktop != _desktop ) {
 838         _layerChangedConnection.disconnect();
 839         _layerUpdatedConnection.disconnect();
 840         _changedConnection.disconnect();
 841         if ( _mgr ) {
 842             _mgr = 0;
 843         }
 844         if ( _desktop ) {
 845             _desktop = 0;
 846         }
 847
 848         _desktop = getDesktop();
 849         if ( _desktop ) {
 850             //setLabel( _desktop->doc()->name );
 851
 852             _mgr = _desktop->layer_manager;
 853             if ( _mgr ) {
 854                 _layerChangedConnection = _mgr->connectCurrentLayerChanged( sigc::mem_fun(*this, &LayersPanel::_selectLayer) );
 855                 _layerUpdatedConnection = _mgr->connectLayerDetailsChanged( sigc::mem_fun(*this, &LayersPanel::_updateLayer) );
 856                 _changedConnection = _mgr->connectChanged( sigc::mem_fun(*this, &LayersPanel::_layersChanged) );
 857             }
 858
 859             _layersChanged();
 860         }
 861     }
 862 /*
 863     GSList const *layers=sp_document_get_resource_list( _desktop->doc(), "layer" );
 864     g_message( "layers list starts at %p", layers );
 865     for ( GSList const *iter=layers ; iter ; iter = iter->next ) {
 866         SPObject *layer=static_cast<SPObject *>(iter->data);
 867         g_message("  {%s}   [%s]", layer->id, layer->label() );
 868     }
 869 */
 870 }
 871
 872
 873
 874 } //namespace Dialogs
 875 } //namespace UI
 876 } //namespace Inkscape
 877
 878
 879 /*
 880   Local Variables:
 881   mode:c++
 882   c-file-style:"stroustrup"
 883   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 884   indent-tabs-mode:nil
 885   fill-column:99
 886   End:
 887 */
 888 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :