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