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 <gtkmm/spinbutton.h>
  37 #include "prefs-utils.h"
  38 #include "xml/repr.h"
  39 #include "svg/css-ostringstream.h"
  40 #include "desktop-style.h"
  41
  42 //#define DUMP_LAYERS 1
  43
  44 namespace Inkscape {
  45 namespace UI {
  46 namespace Dialogs {
  47
  48 LayersPanel* LayersPanel::instance = 0;
  49
  50 LayersPanel& LayersPanel::getInstance()
  51 {
  52     if ( !instance ) {
  53         instance = new LayersPanel();
  54     }
  55
  56     return *instance;
  57 }
  58
  59 enum {
  60     COL_VISIBLE = 1,
  61     COL_LOCKED
  62 };
  63
  64 enum {
  65     BUTTON_NEW = 0,
  66     BUTTON_RENAME,
  67     BUTTON_TOP,
  68     BUTTON_BOTTOM,
  69     BUTTON_UP,
  70     BUTTON_DOWN,
  71 //    BUTTON_DUPLICATE,
  72     BUTTON_DELETE
  73 };
  74
  75 class ImageToggler : public Gtk::CellRendererPixbuf {
  76 public:
  77     ImageToggler( char const* on, char const* off) :
  78         Glib::ObjectBase(typeid(ImageToggler)),
  79         Gtk::CellRendererPixbuf(),
  80         _pixOnName(on),
  81         _pixOffName(off),
  82         _property_active(*this, "active", false),
  83         _property_activatable(*this, "activatable", true),
  84         _property_pixbuf_on(*this, "pixbuf_on", Glib::RefPtr<Gdk::Pixbuf>(0)),
  85         _property_pixbuf_off(*this, "pixbuf_off", Glib::RefPtr<Gdk::Pixbuf>(0))
  86     {
  87         property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE;
  88
  89         Gtk::Widget* thingie = sp_icon_get_icon(_pixOnName.c_str(), Inkscape::ICON_SIZE_DECORATION);
  90         if ( thingie ) {
  91             if ( SP_IS_ICON(thingie->gobj()) ) {
  92                 SPIcon* icon = SP_ICON(thingie->gobj());
  93                 sp_icon_fetch_pixbuf( icon );
  94                 _property_pixbuf_on = Glib::wrap( icon->pb, true );
  95             }
  96             delete thingie;
  97         }
  98         thingie = sp_icon_get_icon(_pixOffName.c_str(), Inkscape::ICON_SIZE_DECORATION);
  99         if ( thingie ) {
 100             if ( SP_IS_ICON(thingie->gobj()) ) {
 101                 SPIcon* icon = SP_ICON(thingie->gobj());
 102                 sp_icon_fetch_pixbuf( icon );
 103                 _property_pixbuf_off = Glib::wrap( icon->pb, true );
 104             }
 105             delete thingie;
 106         }
 107         property_pixbuf() = _property_pixbuf_off.get_value();
 108     }
 109
 110     sigc::signal<void, const Glib::ustring&> signal_toggled()
 111     {
 112         return _signal_toggled;
 113     }
 114
 115     sigc::signal<void, GdkEvent const *> signal_pre_toggle()
 116     {
 117         return _signal_pre_toggle;
 118     }
 119
 120     Glib::PropertyProxy<bool> property_active() { return _property_active.get_proxy(); }
 121     Glib::PropertyProxy<bool> property_activatable() { return _property_activatable.get_proxy(); }
 122     Glib::PropertyProxy< Glib::RefPtr<Gdk::Pixbuf> > property_pixbuf_on();
 123     Glib::PropertyProxy< Glib::RefPtr<Gdk::Pixbuf> > property_pixbuf_off();
 124 //  virtual Glib::PropertyProxy_Base _property_renderable(); //override
 125
 126 protected:
 127
 128     virtual void get_size_vfunc( Gtk::Widget& widget,
 129                                  const Gdk::Rectangle* cell_area,
 130                                  int* x_offset,
 131                                  int* y_offset,
 132                                  int* width,
 133                                  int* height ) const
 134     {
 135         Gtk::CellRendererPixbuf::get_size_vfunc( widget, cell_area, x_offset, y_offset, width, height );
 136
 137         if ( width ) {
 138             *width += (*width) >> 1;
 139         }
 140         if ( height ) {
 141             *height += (*height) >> 1;
 142         }
 143     }
 144
 145
 146     virtual void render_vfunc( const Glib::RefPtr<Gdk::Drawable>& window,
 147                                Gtk::Widget& widget,
 148                                const Gdk::Rectangle& background_area,
 149                                const Gdk::Rectangle& cell_area,
 150                                const Gdk::Rectangle& expose_area,
 151                                Gtk::CellRendererState flags )
 152     {
 153         property_pixbuf() = _property_active.get_value() ? _property_pixbuf_on : _property_pixbuf_off;
 154         Gtk::CellRendererPixbuf::render_vfunc( window, widget, background_area, cell_area, expose_area, flags );
 155     }
 156
 157     virtual bool activate_vfunc(GdkEvent* event,
 158                                 Gtk::Widget& widget,
 159                                 const Glib::ustring& path,
 160                                 const Gdk::Rectangle& background_area,
 161                                 const Gdk::Rectangle& cell_area,
 162                                 Gtk::CellRendererState flags)
 163     {
 164         _signal_pre_toggle.emit(event);
 165         _signal_toggled.emit(path);
 166
 167         return false;
 168     }
 169
 170
 171 private:
 172     Glib::ustring _pixOnName;
 173     Glib::ustring _pixOffName;
 174
 175     Glib::Property<bool> _property_active;
 176     Glib::Property<bool> _property_activatable;
 177     Glib::Property< Glib::RefPtr<Gdk::Pixbuf> > _property_pixbuf_on;
 178     Glib::Property< Glib::RefPtr<Gdk::Pixbuf> > _property_pixbuf_off;
 179
 180     sigc::signal<void, const Glib::ustring&> _signal_toggled;
 181     sigc::signal<void, GdkEvent const *> _signal_pre_toggle;
 182 };
 183
 184 class LayersPanel::InternalUIBounce
 185 {
 186 public:
 187     int _actionCode;
 188     SPObject* _target;
 189 };
 190
 191 static gboolean layers_panel_activated( GtkObject *object, GdkEvent * /*event*/, gpointer data )
 192 {
 193     if ( data )
 194     {
 195         LayersPanel* panel = reinterpret_cast<LayersPanel*>(data);
 196         panel->setDesktop( SP_ACTIVE_DESKTOP );
 197     }
 198
 199     return FALSE;
 200 }
 201
 202
 203 void LayersPanel::_styleButton( Gtk::Button& btn, SPDesktop *desktop, unsigned int code, char const* iconName, char const* fallback )
 204 {
 205     bool set = false;
 206
 207     if ( iconName ) {
 208         GtkWidget *child = sp_icon_new( Inkscape::ICON_SIZE_SMALL_TOOLBAR, iconName );
 209         gtk_widget_show( child );
 210         btn.add( *manage(Glib::wrap(child)) );
 211         set = true;
 212     }
 213
 214     if ( desktop ) {
 215         Verb *verb = Verb::get( code );
 216         if ( verb ) {
 217             SPAction *action = verb->get_action(desktop);
 218             if ( !set && action && action->image ) {
 219                 GtkWidget *child = sp_icon_new( Inkscape::ICON_SIZE_SMALL_TOOLBAR, action->image );
 220                 gtk_widget_show( child );
 221                 btn.add( *manage(Glib::wrap(child)) );
 222                 set = true;
 223             }
 224
 225             if ( action && action->tip ) {
 226                 _tips.set_tip( btn, action->tip );
 227             }
 228         }
 229     }
 230
 231     if ( !set && fallback ) {
 232         btn.set_label( fallback );
 233     }
 234 }
 235
 236
 237 Gtk::MenuItem& LayersPanel::_addPopupItem( SPDesktop *desktop, unsigned int code, char const* iconName, char const* fallback, int id )
 238 {
 239     GtkWidget* iconWidget = 0;
 240     const char* label = 0;
 241
 242     if ( iconName ) {
 243         iconWidget = sp_icon_new( Inkscape::ICON_SIZE_MENU, iconName );
 244     }
 245
 246     if ( desktop ) {
 247         Verb *verb = Verb::get( code );
 248         if ( verb ) {
 249             SPAction *action = verb->get_action(desktop);
 250             if ( !iconWidget && action && action->image ) {
 251                 iconWidget = sp_icon_new( Inkscape::ICON_SIZE_MENU, action->image );
 252             }
 253
 254             if ( action ) {
 255                 label = action->name;
 256             }
 257         }
 258     }
 259
 260     if ( !label && fallback ) {
 261         label = fallback;
 262     }
 263
 264     Gtk::Widget* wrapped = 0;
 265     if ( iconWidget ) {
 266         wrapped = manage(Glib::wrap(iconWidget));
 267         wrapped->show();
 268     }
 269
 270
 271
 272     Gtk::Menu::MenuList& menulist = _popupMenu.items();
 273
 274     if ( wrapped ) {
 275         menulist.push_back( Gtk::Menu_Helpers::ImageMenuElem( label, *wrapped, sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), id)) );
 276     } else {
 277         menulist.push_back( Gtk::Menu_Helpers::MenuElem( label, sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), id)) );
 278     }
 279     return menulist.back();
 280 }
 281
 282 void LayersPanel::_fireAction( unsigned int code )
 283 {
 284     if ( _desktop ) {
 285         Verb *verb = Verb::get( code );
 286         if ( verb ) {
 287             SPAction *action = verb->get_action(_desktop);
 288             if ( action ) {
 289                 sp_action_perform( action, NULL );
 290 //             } else {
 291 //                 g_message("no action");
 292             }
 293 //         } else {
 294 //             g_message("no verb for %u", code);
 295         }
 296 //     } else {
 297 //         g_message("no active desktop");
 298     }
 299 }
 300
 301 //     SP_VERB_LAYER_NEXT,
 302 //     SP_VERB_LAYER_PREV,
 303 void LayersPanel::_takeAction( int val )
 304 {
 305     if ( !_pending ) {
 306         _pending = new InternalUIBounce();
 307         _pending->_actionCode = val;
 308         _pending->_target = _selectedLayer();
 309         Glib::signal_timeout().connect( sigc::mem_fun(*this, &LayersPanel::_executeAction), 0 );
 310     }
 311 }
 312
 313 bool LayersPanel::_executeAction()
 314 {
 315     // Make sure selected layer hasn't changed since the action was triggered
 316     if ( _pending
 317          && (
 318              (_pending->_actionCode == BUTTON_NEW)
 319              || !( (_desktop && _desktop->currentLayer())
 320                    && (_desktop->currentLayer() != _pending->_target)
 321                  )
 322              )
 323         ) {
 324         int val = _pending->_actionCode;
 325 //        SPObject* target = _pending->_target;
 326
 327         switch ( val ) {
 328             case BUTTON_NEW:
 329             {
 330                 _fireAction( SP_VERB_LAYER_NEW );
 331             }
 332             break;
 333             case BUTTON_RENAME:
 334             {
 335                 _fireAction( SP_VERB_LAYER_RENAME );
 336             }
 337             break;
 338             case BUTTON_TOP:
 339             {
 340                 _fireAction( SP_VERB_LAYER_TO_TOP );
 341             }
 342             break;
 343             case BUTTON_BOTTOM:
 344             {
 345                 _fireAction( SP_VERB_LAYER_TO_BOTTOM );
 346             }
 347             break;
 348             case BUTTON_UP:
 349             {
 350                 _fireAction( SP_VERB_LAYER_RAISE );
 351             }
 352             break;
 353             case BUTTON_DOWN:
 354             {
 355                 _fireAction( SP_VERB_LAYER_LOWER );
 356             }
 357             break;
 358             case BUTTON_DELETE:
 359             {
 360                 _fireAction( SP_VERB_LAYER_DELETE );
 361             }
 362             break;
 363         }
 364
 365         delete _pending;
 366         _pending = 0;
 367     }
 368
 369     return false;
 370 }
 371
 372 class LayersPanel::ModelColumns : public Gtk::TreeModel::ColumnRecord
 373 {
 374 public:
 375
 376     ModelColumns()
 377     {
 378         add(_colObject);
 379         add(_colVisible);
 380         add(_colLocked);
 381         add(_colLabel);
 382     }
 383     virtual ~ModelColumns() {}
 384
 385     Gtk::TreeModelColumn<SPObject*> _colObject;
 386     Gtk::TreeModelColumn<Glib::ustring> _colLabel;
 387     Gtk::TreeModelColumn<bool> _colVisible;
 388     Gtk::TreeModelColumn<bool> _colLocked;
 389 };
 390
 391 void LayersPanel::_updateLayer( SPObject *layer ) {
 392     _store->foreach( sigc::bind<SPObject*>(sigc::mem_fun(*this, &LayersPanel::_checkForUpdated), layer) );
 393 }
 394
 395 bool LayersPanel::_checkForUpdated(const Gtk::TreePath &path, const Gtk::TreeIter& iter, SPObject* layer)
 396 {
 397     bool stopGoing = false;
 398     Gtk::TreeModel::Row row = *iter;
 399     Glib::ustring tmp = row[_model->_colLabel];
 400     if ( layer == row[_model->_colObject] )
 401     {
 402         row[_model->_colLabel] = layer->label() ? layer->label() : SP_OBJECT_ID(layer);
 403         row[_model->_colVisible] = SP_IS_ITEM(layer) ? !SP_ITEM(layer)->isHidden() : false;
 404         row[_model->_colLocked] = SP_IS_ITEM(layer) ? SP_ITEM(layer)->isLocked() : false;
 405
 406         stopGoing = true;
 407     }
 408
 409     return stopGoing;
 410 }
 411
 412 void LayersPanel::_selectLayer( SPObject *layer ) {
 413     if ( !layer || (_desktop && _desktop->doc() && (layer == _desktop->doc()->root)) ) {
 414         if ( _tree.get_selection()->count_selected_rows() != 0 ) {
 415             _tree.get_selection()->unselect_all();
 416         }
 417     } else {
 418         _store->foreach( sigc::bind<SPObject*>(sigc::mem_fun(*this, &LayersPanel::_checkForSelected), layer) );
 419     }
 420
 421     _checkTreeSelection();
 422 }
 423
 424 bool LayersPanel::_checkForSelected(const Gtk::TreePath &path, const Gtk::TreeIter& iter, SPObject* layer)
 425 {
 426     bool stopGoing = false;
 427
 428     Gtk::TreeModel::Row row = *iter;
 429     if ( layer == row[_model->_colObject] )
 430     {
 431         _tree.expand_to_path( path );
 432
 433         Glib::RefPtr<Gtk::TreeSelection> select = _tree.get_selection();
 434
 435         select->select(iter);
 436
 437         stopGoing = true;
 438     }
 439
 440     return stopGoing;
 441 }
 442
 443 void LayersPanel::_layersChanged()
 444 {
 445 //    g_message("_layersChanged()");
 446     SPDocument* document = _desktop->doc();
 447     SPObject* root = document->root;
 448     if ( root ) {
 449         _selectedConnection.block();
 450         if ( _mgr && _mgr->includes( root ) ) {
 451             SPObject* target = _desktop->currentLayer();
 452             _store->clear();
 453
 454 #if DUMP_LAYERS
 455             g_message("root:%p  {%s}   [%s]", root, root->id, root->label() );
 456 #endif // DUMP_LAYERS
 457             _addLayer( document, root, 0, target, 0 );
 458         }
 459         _selectedConnection.unblock();
 460     }
 461 }
 462
 463 void LayersPanel::_addLayer( SPDocument* doc, SPObject* layer, Gtk::TreeModel::Row* parentRow, SPObject* target, int level )
 464 {
 465     if ( layer && (level < _maxNestDepth) ) {
 466         unsigned int counter = _mgr->childCount(layer);
 467         for ( unsigned int i = 0; i < counter; i++ ) {
 468             SPObject *child = _mgr->nthChildOf(layer, i);
 469             if ( child ) {
 470 #if DUMP_LAYERS
 471                 g_message(" %3d    layer:%p  {%s}   [%s]", level, child, child->id, child->label() );
 472 #endif // DUMP_LAYERS
 473
 474                 Gtk::TreeModel::iterator iter = parentRow ? _store->prepend(parentRow->children()) : _store->prepend();
 475                 Gtk::TreeModel::Row row = *iter;
 476                 row[_model->_colObject] = child;
 477                 row[_model->_colLabel] = child->label() ? child->label() : SP_OBJECT_ID(child);
 478                 row[_model->_colVisible] = SP_IS_ITEM(child) ? !SP_ITEM(child)->isHidden() : false;
 479                 row[_model->_colLocked] = SP_IS_ITEM(child) ? SP_ITEM(child)->isLocked() : false;
 480
 481                 if ( target && child == target ) {
 482                     _tree.expand_to_path( _store->get_path(iter) );
 483
 484                     Glib::RefPtr<Gtk::TreeSelection> select = _tree.get_selection();
 485                     select->select(iter);
 486
 487                     _checkTreeSelection();
 488                 }
 489
 490                 _addLayer( doc, child, &row, target, level + 1 );
 491             }
 492         }
 493     }
 494 }
 495
 496 SPObject* LayersPanel::_selectedLayer()
 497 {
 498     SPObject* obj = 0;
 499
 500     Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected();
 501     if ( iter ) {
 502         Gtk::TreeModel::Row row = *iter;
 503         obj = row[_model->_colObject];
 504     }
 505
 506     return obj;
 507 }
 508
 509 void LayersPanel::_pushTreeSelectionToCurrent()
 510 {
 511     SPObject* inTree = _selectedLayer();
 512     // TODO hunt down the possible API abuse in getting NULL
 513     if ( _desktop->currentRoot() ) {
 514         if ( inTree ) {
 515             SPObject* curr = _desktop->currentLayer();
 516             if ( curr != inTree ) {
 517                 _mgr->setCurrentLayer( inTree );
 518             }
 519         } else {
 520             _mgr->setCurrentLayer( _desktop->doc()->root );
 521         }
 522     }
 523 }
 524
 525 void LayersPanel::_checkTreeSelection()
 526 {
 527     bool sensitive = false;
 528     bool sensitiveNonTop = false;
 529     bool sensitiveNonBottom = false;
 530     if ( _tree.get_selection()->count_selected_rows() > 0 ) {
 531         sensitive = true;
 532
 533         SPObject* inTree = _selectedLayer();
 534         if ( inTree ) {
 535
 536             sensitiveNonTop = (Inkscape::next_layer(inTree->parent, inTree) != 0);
 537             sensitiveNonBottom = (Inkscape::previous_layer(inTree->parent, inTree) != 0);
 538
 539             if ( inTree->repr ) {
 540                 SPCSSAttr *css = sp_repr_css_attr(inTree->repr, "style");
 541                 if ( css ) {
 542                     _opacity.set_value( sp_repr_css_double_property( css, "opacity", 1.0 ) );
 543                 }
 544             }
 545         }
 546     }
 547
 548
 549     for ( std::vector<Gtk::Widget*>::iterator it = _watching.begin(); it != _watching.end(); ++it ) {
 550         (*it)->set_sensitive( sensitive );
 551     }
 552     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonTop.begin(); it != _watchingNonTop.end(); ++it ) {
 553         (*it)->set_sensitive( sensitiveNonTop );
 554     }
 555     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonBottom.begin(); it != _watchingNonBottom.end(); ++it ) {
 556         (*it)->set_sensitive( sensitiveNonBottom );
 557     }
 558 }
 559
 560 void LayersPanel::_preToggle( GdkEvent const *event )
 561 {
 562     if ( _toggleEvent ) {
 563         gdk_event_free(_toggleEvent);
 564         _toggleEvent = 0;
 565     }
 566
 567     if ( event && (event->type == GDK_BUTTON_PRESS) ) {
 568         // Make a copy so we can keep it around.
 569         _toggleEvent = gdk_event_copy(const_cast<GdkEvent*>(event));
 570     }
 571 }
 572
 573 void LayersPanel::_toggled( Glib::ustring const& str, int targetCol )
 574 {
 575     Gtk::TreeModel::Children::iterator iter = _tree.get_model()->get_iter(str);
 576     Gtk::TreeModel::Row row = *iter;
 577
 578     Glib::ustring tmp = row[_model->_colLabel];
 579
 580     SPObject* obj = row[_model->_colObject];
 581     SPItem* item = ( obj && SP_IS_ITEM(obj) ) ? SP_ITEM(obj) : 0;
 582     if ( item ) {
 583         switch ( targetCol ) {
 584             case COL_VISIBLE:
 585             {
 586                 bool newValue = !row[_model->_colVisible];
 587                 row[_model->_colVisible] = newValue;
 588                 item->setHidden( !newValue  );
 589                 item->updateRepr();
 590                 sp_document_done( _desktop->doc() );
 591             }
 592             break;
 593
 594             case COL_LOCKED:
 595             {
 596                 bool newValue = !row[_model->_colLocked];
 597                 row[_model->_colLocked] = newValue;
 598                 item->setLocked( newValue );
 599                 item->updateRepr();
 600                 sp_document_done( _desktop->doc() );
 601             }
 602             break;
 603         }
 604     }
 605 }
 606
 607 void LayersPanel::_handleButtonEvent(GdkEventButton* evt)
 608 {
 609     // TODO - fix to a better is-popup function
 610     if ( (evt->type == GDK_BUTTON_PRESS) && (evt->button == 3) ) {
 611
 612
 613         {
 614             Gtk::TreeModel::Path path;
 615             Gtk::TreeViewColumn* col = 0;
 616             int x = static_cast<int>(evt->x);
 617             int y = static_cast<int>(evt->y);
 618             int x2 = 0;
 619             int y2 = 0;
 620             if ( _tree.get_path_at_pos( x, y,
 621                                         path, col,
 622                                         x2, y2 ) ) {
 623                 _checkTreeSelection();
 624                 _popupMenu.popup(evt->button, evt->time);
 625             }
 626         }
 627
 628     }
 629 }
 630
 631 void LayersPanel::_handleRowChange( Gtk::TreeModel::Path const& path, Gtk::TreeModel::iterator const& iter )
 632 {
 633     Gtk::TreeModel::Row row = *iter;
 634     if ( row ) {
 635         SPObject* obj = row[_model->_colObject];
 636         if ( obj ) {
 637             gchar const* oldLabel = obj->label();
 638             Glib::ustring tmp = row[_model->_colLabel];
 639             if ( oldLabel && oldLabel[0] && !tmp.empty() && (tmp != oldLabel) ) {
 640                 _mgr->renameLayer( obj, tmp.c_str() );
 641                 row[_model->_colLabel] = obj->label();
 642             }
 643         }
 644     }
 645 }
 646
 647 bool LayersPanel::_rowSelectFunction( Glib::RefPtr<Gtk::TreeModel> const & model, Gtk::TreeModel::Path const & path, bool currentlySelected )
 648 {
 649     bool val = true;
 650     if ( !currentlySelected && _toggleEvent )
 651     {
 652         GdkEvent* event = gtk_get_current_event();
 653         if ( event ) {
 654             // (keep these checks separate, so we know when to call gdk_event_free()
 655             if ( event->type == GDK_BUTTON_PRESS ) {
 656                 GdkEventButton const* target = reinterpret_cast<GdkEventButton const*>(_toggleEvent);
 657                 GdkEventButton const* evtb = reinterpret_cast<GdkEventButton const*>(event);
 658
 659                 if ( (evtb->window == target->window)
 660                      && (evtb->send_event == target->send_event)
 661                      && (evtb->time == target->time)
 662                      && (evtb->state == target->state)
 663                     )
 664                 {
 665                     // Ooooh! It's a magic one
 666                     val = false;
 667                 }
 668             }
 669             gdk_event_free(event);
 670         }
 671     }
 672     return val;
 673 }
 674
 675
 676 void LayersPanel::_opacityChanged()
 677 {
 678     SPObject* layer = _selectedLayer();
 679
 680     if ( _desktop && layer && !_opacityConnection.blocked() ) {
 681         _opacityConnection.block();
 682
 683
 684         Gtk::Adjustment* adj = _opacity.get_adjustment();
 685         SPCSSAttr *css = sp_repr_css_attr_new();
 686
 687         Inkscape::CSSOStringStream os;
 688         os << CLAMP( adj->get_value(), 0.0, 1.0 );
 689         sp_repr_css_set_property( css, "opacity", os.str().c_str() );
 690
 691         sp_desktop_apply_css_recursive( layer, css, true );
 692         layer->updateRepr();
 693
 694         sp_repr_css_attr_unref( css );
 695
 696         sp_document_maybe_done( _desktop->doc(), "layers:opacity" );
 697
 698         _opacityConnection.unblock();
 699     }
 700 }
 701
 702
 703
 704 /**
 705  * Constructor
 706  */
 707 LayersPanel::LayersPanel() :
 708     Inkscape::UI::Widget::Panel( Glib::ustring(), "dialogs.layers" ),
 709     _maxNestDepth(20),
 710     _mgr(0),
 711     _desktop(0),
 712     _model(0),
 713     _pending(0),
 714     _toggleEvent(0)
 715 {
 716     _maxNestDepth = prefs_get_int_attribute_limited("dialogs.layers", "maxDepth", 20, 1, 1000);
 717
 718     ModelColumns *zoop = new ModelColumns();
 719     _model = zoop;
 720
 721     _store = Gtk::TreeStore::create( *zoop );
 722
 723     _tree.set_model( _store );
 724     _tree.set_headers_visible(false);
 725
 726     ImageToggler* eyeRenderer = manage( new ImageToggler("visible", "hidden") );
 727     int visibleColNum = _tree.append_column("vis", *eyeRenderer) - 1;
 728     eyeRenderer->signal_pre_toggle().connect( sigc::mem_fun(*this, &LayersPanel::_preToggle) );
 729     eyeRenderer->signal_toggled().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_toggled), (int)COL_VISIBLE) );
 730     eyeRenderer->property_activatable() = true;
 731     Gtk::TreeViewColumn* col = _tree.get_column(visibleColNum);
 732     if ( col ) {
 733         col->add_attribute( eyeRenderer->property_active(), _model->_colVisible );
 734     }
 735
 736     ImageToggler * renderer = manage( new ImageToggler("width_height_lock", "lock_unlocked") );
 737     int lockedColNum = _tree.append_column("lock", *renderer) - 1;
 738     renderer->signal_pre_toggle().connect( sigc::mem_fun(*this, &LayersPanel::_preToggle) );
 739     renderer->signal_toggled().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_toggled), (int)COL_LOCKED) );
 740     renderer->property_activatable() = true;
 741     col = _tree.get_column(lockedColNum);
 742     if ( col ) {
 743         col->add_attribute( renderer->property_active(), _model->_colLocked );
 744     }
 745
 746     int nameColNum = _tree.append_column_editable("Name", _model->_colLabel) - 1;
 747
 748     _tree.set_expander_column( *_tree.get_column(nameColNum) );
 749
 750
 751     _selectedConnection = _tree.get_selection()->signal_changed().connect( sigc::mem_fun(*this, &LayersPanel::_pushTreeSelectionToCurrent) );
 752     _tree.get_selection()->set_select_function( sigc::mem_fun(*this, &LayersPanel::_rowSelectFunction) );
 753
 754     _tree.get_model()->signal_row_changed().connect( sigc::mem_fun(*this, &LayersPanel::_handleRowChange) );
 755     _tree.signal_button_press_event().connect_notify( sigc::mem_fun(*this, &LayersPanel::_handleButtonEvent) );
 756
 757     _scroller.add( _tree );
 758     _scroller.set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC );
 759
 760
 761     _opacityBox.pack_start( *manage( new Gtk::Label(_("Opacity:"))), Gtk::PACK_SHRINK );
 762
 763     _opacity.set_draw_value(false);
 764     _opacity.set_value(1.0);
 765     _opacity.set_range(0.0, 1.0);
 766     _opacity.set_increments(0.01, 0.1);
 767     _opacityBox.pack_start( _opacity, Gtk::PACK_EXPAND_WIDGET );
 768
 769     Gtk::SpinButton* spinBtn = manage( new Gtk::SpinButton(*_opacity.get_adjustment(), 0.0, 3) );
 770
 771     _opacityBox.pack_end( *spinBtn, Gtk::PACK_SHRINK );
 772     _watching.push_back( &_opacityBox );
 773
 774     _getContents()->pack_start( _scroller, Gtk::PACK_EXPAND_WIDGET );
 775
 776     _getContents()->pack_end(_opacityBox, Gtk::PACK_SHRINK);
 777     _getContents()->pack_end(_buttonsRow, Gtk::PACK_SHRINK);
 778
 779     _opacityConnection = _opacity.get_adjustment()->signal_value_changed().connect( sigc::mem_fun(*this, &LayersPanel::_opacityChanged) );
 780
 781     SPDesktop* targetDesktop = SP_ACTIVE_DESKTOP;
 782
 783     _buttonsRow.set_child_min_width( 16 );
 784
 785     Gtk::Button* btn = manage( new Gtk::Button() );
 786     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_NEW, GTK_STOCK_ADD, _("New") );
 787     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_NEW) );
 788     _buttonsRow.add( *btn );
 789
 790     btn = manage( new Gtk::Button() );
 791     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_TO_TOP, GTK_STOCK_GOTO_TOP, _("Top") );
 792     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_TOP) );
 793     _watchingNonTop.push_back( btn );
 794     _buttonsRow.add( *btn );
 795
 796     btn = manage( new Gtk::Button() );
 797     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_RAISE, GTK_STOCK_GO_UP, _("Up") );
 798     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_UP) );
 799     _watchingNonTop.push_back( btn );
 800     _buttonsRow.add( *btn );
 801
 802     btn = manage( new Gtk::Button() );
 803     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_LOWER, GTK_STOCK_GO_DOWN, _("Dn") );
 804     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DOWN) );
 805     _watchingNonBottom.push_back( btn );
 806     _buttonsRow.add( *btn );
 807
 808     btn = manage( new Gtk::Button() );
 809     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_TO_BOTTOM, GTK_STOCK_GOTO_BOTTOM, _("Bot") );
 810     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_BOTTOM) );
 811     _watchingNonBottom.push_back( btn );
 812     _buttonsRow.add( *btn );
 813
 814 //     btn = manage( new Gtk::Button("Dup") );
 815 //     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DUPLICATE) );
 816 //     _buttonsRow.add( *btn );
 817
 818     btn = manage( new Gtk::Button() );
 819     _styleButton( *btn, targetDesktop, SP_VERB_LAYER_DELETE, GTK_STOCK_REMOVE, _("X") );
 820     btn->signal_clicked().connect( sigc::bind( sigc::mem_fun(*this, &LayersPanel::_takeAction), (int)BUTTON_DELETE) );
 821     _watching.push_back( btn );
 822     _buttonsRow.add( *btn );
 823
 824
 825
 826
 827     // -------------------------------------------------------
 828     {
 829         _watching.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_RENAME, 0, "Rename", (int)BUTTON_RENAME ) );
 830         _watching.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_NEW, 0, "New", (int)BUTTON_NEW ) );
 831
 832          _popupMenu.items().push_back( Gtk::Menu_Helpers::SeparatorElem() );
 833
 834         _watchingNonTop.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_RAISE, GTK_STOCK_GO_UP, "Up", (int)BUTTON_UP ) );
 835         _watchingNonBottom.push_back( &_addPopupItem( targetDesktop, SP_VERB_LAYER_LOWER, GTK_STOCK_GO_DOWN, "Down", (int)BUTTON_DOWN ) );
 836
 837         _popupMenu.show_all_children();
 838     }
 839     // -------------------------------------------------------
 840
 841
 842
 843     for ( std::vector<Gtk::Widget*>::iterator it = _watching.begin(); it != _watching.end(); ++it ) {
 844         (*it)->set_sensitive( false );
 845     }
 846     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonTop.begin(); it != _watchingNonTop.end(); ++it ) {
 847         (*it)->set_sensitive( false );
 848     }
 849     for ( std::vector<Gtk::Widget*>::iterator it = _watchingNonBottom.begin(); it != _watchingNonBottom.end(); ++it ) {
 850         (*it)->set_sensitive( false );
 851     }
 852
 853     g_signal_connect( G_OBJECT(INKSCAPE), "activate_desktop", G_CALLBACK( layers_panel_activated ), this );
 854
 855
 856     setDesktop( targetDesktop );
 857
 858
 859
 860     show_all_children();
 861
 862     restorePanelPrefs();
 863 }
 864
 865 LayersPanel::~LayersPanel()
 866 {
 867     if ( _model )
 868     {
 869         delete _model;
 870     }
 871
 872     if ( _toggleEvent )
 873     {
 874         gdk_event_free( _toggleEvent );
 875         _toggleEvent = 0;
 876     }
 877 }
 878
 879
 880 void LayersPanel::setDesktop( SPDesktop* desktop )
 881 {
 882     if ( desktop != _desktop ) {
 883         _layerChangedConnection.disconnect();
 884         _layerUpdatedConnection.disconnect();
 885         _changedConnection.disconnect();
 886         if ( _mgr ) {
 887             _mgr = 0;
 888         }
 889         if ( _desktop ) {
 890             _desktop = 0;
 891         }
 892
 893         _desktop = SP_ACTIVE_DESKTOP;
 894         if ( _desktop ) {
 895             setLabel( _desktop->doc()->name );
 896
 897             _mgr = _desktop->layer_manager;
 898             if ( _mgr ) {
 899                 _layerChangedConnection = _mgr->connectCurrentLayerChanged( sigc::mem_fun(*this, &LayersPanel::_selectLayer) );
 900                 _layerUpdatedConnection = _mgr->connectLayerDetailsChanged( sigc::mem_fun(*this, &LayersPanel::_updateLayer) );
 901                 _changedConnection = _mgr->connectChanged( sigc::mem_fun(*this, &LayersPanel::_layersChanged) );
 902             }
 903
 904             _layersChanged();
 905         }
 906     }
 907 /*
 908     GSList const *layers=sp_document_get_resource_list( _desktop->doc(), "layer" );
 909     g_message( "layers list starts at %p", layers );
 910     for ( GSList const *iter=layers ; iter ; iter = iter->next ) {
 911         SPObject *layer=static_cast<SPObject *>(iter->data);
 912         g_message("  {%s}   [%s]", layer->id, layer->label() );
 913     }
 914 */
 915 }
 916
 917
 918
 919 } //namespace Dialogs
 920 } //namespace UI
 921 } //namespace Inkscape
 922
 923
 924 /*
 925   Local Variables:
 926   mode:c++
 927   c-file-style:"stroustrup"
 928   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 929   indent-tabs-mode:nil
 930   fill-column:99
 931   End:
 932 */
 933 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :