git.roojs.org Git - app.Builder.js/blob - src/Builder4/WindowLeftTree.vala

   1 static Xcls_WindowLeftTree  _WindowLeftTree;
   2
   3 public class Xcls_WindowLeftTree : Object
   4 {
   5     public Gtk.ScrolledWindow el;
   6     private Xcls_WindowLeftTree  _this;
   7
   8     public static Xcls_WindowLeftTree singleton()
   9     {
  10         if (_WindowLeftTree == null) {
  11             _WindowLeftTree= new Xcls_WindowLeftTree();
  12         }
  13         return _WindowLeftTree;
  14     }
  15     public Xcls_view view;
  16     public Xcls_model model;
  17     public Xcls_renderer renderer;
  18     public Xcls_LeftTreeMenu LeftTreeMenu;
  19
  20         // my vars (def)
  21     public signal bool before_node_change (JsRender.Node? node);
  22     public signal void changed ();
  23     public signal void node_selected (JsRender.Node? node, string source);
  24     public Xcls_MainWindow main_window;
  25
  26     // ctor
  27     public Xcls_WindowLeftTree()
  28     {
  29         _this = this;
  30         this.el = new Gtk.ScrolledWindow( null, null );
  31
  32         // my vars (dec)
  33         this.main_window = null;
  34
  35         // set gobject values
  36         this.el.shadow_type = Gtk.ShadowType.IN;
  37         var child_0 = new Xcls_view( _this );
  38         child_0.ref();
  39         this.el.add (  child_0.el  );
  40         var child_1 = new Xcls_LeftTreeMenu( _this );
  41         child_1.ref();
  42
  43         // init method
  44
  45         this.el.set_policy (Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC);
  46     }
  47
  48     // user defined functions
  49     public           JsRender.Node? getActiveElement () { // return path to actie node.
  50
  51          var path = this.getActivePath();
  52          if (path.length < 1) {
  53             return null;
  54          }
  55          return _this.model.pathToNode(path);
  56
  57     }
  58     public           JsRender.JsRender getActiveFile () {
  59         return this.main_window.windowstate.file;
  60     }
  61     public           string getActivePath () {
  62
  63         var view = this.view.el;
  64         if (view.get_selection().count_selected_rows() < 1) {
  65             return "";
  66         }
  67         Gtk.TreeIter iter;
  68         Gtk.TreeModel mod;
  69         view.get_selection().get_selected(out mod, out iter);
  70         return mod.get_path(iter).to_string();
  71     }
  72     public class Xcls_view : Object
  73     {
  74         public Gtk.TreeView el;
  75         private Xcls_WindowLeftTree  _this;
  76
  77
  78             // my vars (def)
  79         public string dragData;
  80         public string[] dropList;
  81         public int drag_x;
  82         public int drag_y;
  83         public string lastEventSource;
  84         public bool drag_in_motion;
  85         public bool blockChanges;
  86
  87         // ctor
  88         public Xcls_view(Xcls_WindowLeftTree _owner )
  89         {
  90             _this = _owner;
  91             _this.view = this;
  92             this.el = new Gtk.TreeView();
  93
  94             // my vars (dec)
  95             this.lastEventSource = "";
  96             this.blockChanges = false;
  97
  98             // set gobject values
  99             this.el.expand = true;
 100             this.el.tooltip_column = 1;
 101             this.el.enable_tree_lines = true;
 102             this.el.headers_visible = false;
 103             var child_0 = new Xcls_model( _this );
 104             child_0.ref();
 105             this.el.set_model (  child_0.el  );
 106             var child_1 = new Xcls_TreeViewColumn4( _this );
 107             child_1.ref();
 108             this.el.append_column (  child_1.el  );
 109
 110             // init method
 111
 112             {
 113                 var description = new Pango.FontDescription();
 114                 description.set_size(8000);
 115                 this.el.override_font(description);
 116
 117                 var selection = this.el.get_selection();
 118                 selection.set_mode( Gtk.SelectionMode.SINGLE);
 119
 120
 121                 // is this really needed??
 122                 /*
 123                 this.selection.signal['changed'].connect(function() {
 124                     _this.get('/LeftTree.view').listeners.cursor_changed.apply(
 125                         _this.get('/LeftTree.view'), [ _this.get('/LeftTree.view'), '']
 126                     );
 127                 });
 128                 */
 129                 Gtk.drag_source_set (
 130                     this.el,            /* widget will be drag-able */
 131                     Gdk.ModifierType.BUTTON1_MASK,       /* modifier that will start a drag */
 132                     BuilderApplication.targetList,            /* lists of target to support */
 133                     Gdk.DragAction.COPY   | Gdk.DragAction.MOVE    |  Gdk.DragAction.LINK           /* what to do with data after dropped */
 134                 );
 135
 136                 // ?? needed??
 137                 //Gtk.drag_source_add_text_targets(this.el);
 138
 139                 Gtk.drag_dest_set
 140                 (
 141                     this.el,              /* widget that will accept a drop */
 142                     Gtk.DestDefaults.MOTION  | Gtk.DestDefaults.HIGHLIGHT,
 143                     BuilderApplication.targetList,            /* lists of target to support */
 144                     Gdk.DragAction.COPY   | Gdk.DragAction.MOVE   | Gdk.DragAction.LINK     /* what to do with data after dropped */
 145                 );
 146
 147                 //Gtk.drag_dest_set_target_list(this.el, Builder.Application.targetList);
 148                 //Gtk.drag_dest_add_text_targets(this.el);
 149             }
 150
 151             //listeners
 152             this.el.button_press_event.connect( ( ev) => {
 153                 //console.log("button press?");
 154                 this.lastEventSource = "tree";
 155                 if (! _this.before_node_change(null) ) {
 156
 157                    return true;
 158                 }
 159
 160
 161                 if (ev.type != Gdk.EventType.BUTTON_PRESS  || ev.button != 3) {
 162                     //print("click" + ev.type);
 163                     return false;
 164                 }
 165                 Gtk.TreePath res;
 166                 if (!_this.view.el.get_path_at_pos((int)ev.x,(int)ev.y, out res, null, null, null) ) {
 167                     return true;
 168                 }
 169
 170                 this.el.get_selection().select_path(res);
 171
 172                   //if (!this.get('/LeftTreeMenu').el)  {
 173                   //      this.get('/LeftTreeMenu').init();
 174                   //  }
 175
 176                  _this.LeftTreeMenu.el.set_screen(Gdk.Screen.get_default());
 177                  _this.LeftTreeMenu.el.show_all();
 178                   _this.LeftTreeMenu.el.popup(null, null, null,  3, ev.time);
 179                  //   print("click:" + res.path.to_string());
 180                   return true;
 181             });
 182             this.el.cursor_changed.connect( ( ) => {
 183
 184
 185                  if (this.blockChanges) { // probably not needed..
 186                    return  ;
 187                  }
 188                   if (!_this.before_node_change(null) ) {
 189                      this.blockChanges = true;
 190                      this.el.get_selection().unselect_all();
 191                      this.blockChanges = false;
 192                      return;
 193                  }
 194                  if (_this.main_window.windowstate.file == null) {
 195                      return;
 196                  }
 197
 198                  //var render = this.get('/LeftTree').getRenderer();
 199                 print("LEFT TREE -> view -> selection changed called\n");
 200
 201
 202                 // -- it appears that the selection is not updated.
 203
 204                 GLib.Timeout.add_full(GLib.Priority.DEFAULT,10 , () => {
 205
 206
 207                         if (this.el.get_selection().count_selected_rows() < 1) {
 208
 209                             print("selected rows < 1\n");
 210                             //??this.model.load( false);
 211                             _this.node_selected(null, this.lastEventSource);
 212
 213                             return false ;
 214                         }
 215
 216                             //console.log('changed');
 217                         var s = this.el.get_selection();
 218                          Gtk.TreeIter iter;
 219                          Gtk.TreeModel mod;
 220                         s.get_selected(out mod, out iter);
 221
 222
 223                         // var val = "";
 224                         GLib.Value value;
 225                         _this.model.el.get_value(iter, 2, out value);
 226                         _this.model.activePath = mod.get_path(iter).to_string();
 227
 228                         var node = (JsRender.Node)value.dup_object();
 229                         _this.node_selected(node, this.lastEventSource);
 230                         while (Gtk.events_pending()) {
 231                             Gtk.main_iteration();
 232                        }
 233                         var cp = mod.get_path(iter);
 234                         Gtk.TreePath sp, ep;
 235                         this.el.get_visible_range(out sp, out ep);
 236                         // if sp is before cp then retuns 1.
 237                         // if cp is before ep then retuns 1.
 238                         if (cp.compare(sp) >= 0 && ep.compare(cp) >=1) {
 239                             return false;
 240                         }
 241
 242
 243
 244                         this.el.scroll_to_cell(new Gtk.TreePath.from_string(_this.model.activePath), null, true, 0.1f,0.0f);
 245
 246                         return false;
 247                   });
 248                 //_this.after_node_change(node);
 249
 250             //        _this.model.file.changed(node, "tree");
 251
 252                 //Seed.print( value.get_string());
 253                 return  ;
 254
 255             });
 256             this.el.drag_begin.connect( ( ctx)  => {
 257                 //print('SOURCE: drag-begin');
 258
 259
 260                     //this.targetData = "";
 261
 262                     // find what is selected in our tree...
 263
 264                     var s = _this.view.el.get_selection();
 265                     if (s.count_selected_rows() < 1) {
 266                         return;
 267                     }
 268                     Gtk.TreeIter iter;
 269                     Gtk.TreeModel mod;
 270                     s.get_selected(out mod, out iter);
 271
 272
 273
 274                     // set some properties of the tree for use by the dropped element.
 275                     GLib.Value value;
 276                     _this.model.el.get_value(iter, 2, out value);
 277                     var tp = mod.get_path(iter).to_string();
 278                     var data = (JsRender.Node)(value.dup_object());
 279                     var xname = data.fqn();
 280                     print ("XNAME  IS " + xname+ "\n");
 281                     this.dragData = tp;
 282                     this.dropList = _this.main_window.windowstate.file.palete().getDropList(xname);
 283
 284                     print ("DROP LIST IS " + string.joinv(", ", this.dropList) + "\n");
 285
 286
 287                     // make the drag icon a picture of the node that was selected
 288
 289
 290                 // by default returns the path..
 291                    var path = _this.model.el.get_path(iter);
 292
 293
 294                     var pix = this.el.create_row_drag_icon ( path);
 295
 296                     Gtk.drag_set_icon_surface (ctx, pix) ;
 297
 298                     return;
 299             });
 300             this.el.drag_end.connect( (drag_context) => {
 301                 //Seed.print('LEFT-TREE: drag-end');
 302                     this.dragData = "";
 303                     this.dropList = null;
 304             //        this.targetData = "";
 305                     this.highlightDropPath("",0);
 306             //        return true;
 307             });
 308             this.el.drag_motion.connect( ( ctx, x, y, time)  => {
 309                print("got drag motion\n");
 310                 var src = Gtk.drag_get_source_widget(ctx);
 311                this.drag_x = x;
 312                this.drag_y = y;
 313
 314                if (src != this.el) {
 315
 316
 317
 318                 // the point of this is to detect where an item could be dropped..
 319                     print("requesting drag data\n");
 320                    this.drag_in_motion = true;
 321
 322                         // request data that will be recieved by the recieve...
 323                     Gtk.drag_get_data
 324                     (
 325                             this.el,         // will receive 'drag-data-received' signal
 326                             ctx,        // represents the current state of the DnD
 327                             Gdk.Atom.intern("STRING",true),    // the target type we want
 328                             time            // time stamp
 329                     );
 330                     return true;
 331               }
 332
 333
 334               print("action: %d\n", ctx.get_actions());
 335              //print("GETTING POS");
 336                 var  targetData = "";
 337
 338                 Gtk.TreePath path;
 339                 Gtk.TreeViewDropPosition pos;
 340                 var isOver = _this.view.el.get_dest_row_at_pos(this.drag_x,this.drag_y, out path, out pos);
 341
 342                 // if there are not items in the tree.. the we have to set isOver to true for anything..
 343                 var isEmpty = false;
 344                 if (_this.model.el.iter_n_children(null) < 1) {
 345                     print("got NO children?\n");
 346                     isOver = true; //???
 347                     isEmpty = true;
 348                     pos = Gtk.TreeViewDropPosition.INTO_OR_AFTER;
 349                 }
 350
 351
 352                 // ------------- a drag from self..
 353
 354
 355                 //var action = Gdk.DragAction.COPY;
 356                     // unless we are copying!!! ctl button..
 357
 358                 var action = (ctx.get_actions() & Gdk.DragAction.MOVE) > 0 ?
 359                              Gdk.DragAction.COPY  : Gdk.DragAction.MOVE ;
 360                             // Gdk.DragAction.MOVE : Gdk.DragAction.COPY ;
 361
 362
 363                 if (_this.model.el.iter_n_children(null) < 1) {
 364                     // no children.. -- asume it's ok..
 365
 366                     targetData = "|%d|".printf((int)Gtk.TreeViewDropPosition.INTO_OR_AFTER);
 367
 368                     this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 369                     Gdk.drag_status(ctx, action ,time);
 370                     return true;
 371
 372                     // continue through to allow drop...
 373
 374                 }
 375
 376
 377
 378
 379
 380                 //print("ISOVER? " + isOver);
 381                 if (!isOver) {
 382
 383                     Gdk.drag_status(ctx, 0 ,time);
 384                      this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 385                      return false;
 386
 387                 }
 388
 389                 // drag node is parent of child..
 390                 //console.log("SRC TREEPATH: " + src.treepath);
 391                 //console.log("TARGET TREEPATH: " + data.path.to_string());
 392
 393                 // nned to check a  few here..
 394                 //Gtk.TreeViewDropPosition.INTO_OR_AFTER
 395                 //Gtk.TreeViewDropPosition.INTO_OR_BEFORE
 396                 //Gtk.TreeViewDropPosition.AFTER
 397                 //Gtk.TreeViewDropPosition.BEFORE
 398
 399                 // locally dragged items to not really use the
 400                 var selection_text = this.dragData;
 401
 402
 403
 404                 if (selection_text == null || selection_text.length < 1) {
 405                             //print("Error  - drag selection text returned NULL");
 406                          Gdk.drag_status(ctx, 0 ,time);
 407                         this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 408                          return false;
 409                  }
 410
 411
 412                         // see if we are dragging into ourself?
 413                 var target_path = path.to_string();
 414                 print ("Drag  %s onto %s--%d\n ", selection_text, target_path, pos);
 415
 416                 // pos : 3 = ontop - 0 = after, 1 = before
 417                 //print("target_path="+target_path);
 418
 419                 //
 420                 if (selection_text  == target_path) {
 421                     print("self drag ?? == we should perhaps allow copy onto self..\n");
 422
 423                      Gdk.drag_status(ctx, 0 ,time);
 424                       this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 425                       return false;
 426             //                 -- fixme -- this is not really correct..
 427
 428                 }
 429
 430                 // check that
 431                 //print("DUMPING DATA");
 432                 //console.dump(data);
 433                 // path, pos
 434
 435                 //print(data.path.to_string() +' => '+  data.pos);
 436
 437                 // dropList is a list of xtypes that this node could be dropped on.
 438                 // it is set up when we start to drag..
 439
 440
 441                 targetData = _this.model.findDropNodeByPath( path.to_string(), this.dropList, pos);
 442
 443                 print("targetDAta: " + targetData +"\n");
 444
 445                 if (targetData.length < 1) {
 446                     //print("Can not find drop node path");
 447
 448                     Gdk.drag_status(ctx, 0, time);
 449                     this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 450                     return false;
 451                 }
 452
 453                 var td_ar = targetData.split("|");
 454
 455
 456
 457                 Gdk.drag_status(ctx, action ,time);
 458                 this.highlightDropPath(td_ar[0], (Gtk.TreeViewDropPosition)int.parse(td_ar[1]));
 459                 return true;
 460
 461
 462             });
 463             this.el.drag_data_get.connect( ( drag_context, data, info, time) => {
 464
 465
 466                              //print("drag-data-get");
 467                              var s = this.el.get_selection();
 468                              if (s.count_selected_rows() < 1) {
 469                                     data.set_text("",0);
 470                                      print("return empty string - no selection..");
 471                                     return;
 472                                 }
 473
 474                              Gtk.TreeIter iter;
 475                              Gtk.TreeModel mod;
 476
 477                              s.get_selected(out mod, out iter);
 478
 479
 480
 481                              GLib.Value value;
 482                              _this.model.el.get_value(iter, 2, out value);
 483                              var ndata = (JsRender.Node)(value.dup_object());
 484
 485
 486
 487                             var tp = mod.get_path(iter).to_string();
 488                             // by default returns the path..
 489
 490                            if ( info != Gdk.Atom.intern("STRING",true) ) {
 491                                 tp = ndata.toJsonString();
 492                            }
 493
 494                            //data.set_text(tp,tp.length);
 495
 496                             data.set (data.get_target (), 8, (uchar[]) tp.to_utf8 ());
 497
 498
 499                            //  print("return " + tp);
 500                         });
 501             this.el.drag_data_received.connect( (ctx, x, y, sel, info, time)  => {
 502
 503                     // THIS CODE ONLY RELATES TO drag  or drop of "NEW" elements or "FROM another tree.."
 504
 505
 506                     //  print("Tree: drag-data-received\n");
 507                     var selection_text = (string)sel.get_data();
 508                     //print("selection_text= %s\n",selection_text);
 509
 510                     var is_drag = this.drag_in_motion;
 511
 512
 513
 514                     print("Is Drag %s\n", is_drag ? "Y": "N");
 515                     var  targetData = "";
 516
 517                     Gtk.TreePath path;
 518                     Gtk.TreeViewDropPosition pos;
 519                     var isOver = _this.view.el.get_dest_row_at_pos(this.drag_x,this.drag_y, out path, out pos);
 520
 521                     // if there are not items in the tree.. the we have to set isOver to true for anything..
 522                     var isEmpty = false;
 523                     if (_this.model.el.iter_n_children(null) < 1) {
 524                         print("got NO children?\n");
 525                         isOver = true; //???
 526                         isEmpty = true;
 527                         pos = Gtk.TreeViewDropPosition.INTO_OR_AFTER;
 528                     }
 529
 530
 531                     //console.log("LEFT-TREE: drag-motion");
 532                     var src = Gtk.drag_get_source_widget(ctx);
 533
 534                     // a drag from self - this should be handled by drop and motion.
 535                     if (src == this.el) {
 536                         print("Source == this element should not happen.. ? \n");
 537                         return;
 538                     }
 539                     //print("drag_data_recieved from another element");
 540
 541
 542
 543
 544                     if (selection_text == null || selection_text.length < 1 || !isOver) {
 545                         // nothing valid foudn to drop...
 546                            print("empty sel text or not over");
 547                         if (is_drag) {
 548                             Gdk.drag_status(ctx, 0, time);
 549                             this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 550                             return;
 551                         }
 552                         Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 553                         // no drop action...
 554                         return;
 555
 556                     }
 557                     var dropNode = new JsRender.Node();
 558
 559                     var dropNodeType  = selection_text;
 560                     var show_templates = true;
 561                     // for drop
 562                     if (dropNodeType[0] == '{') {
 563                         var pa = new Json.Parser();
 564                         try {
 565                             pa.load_from_data(dropNodeType);
 566                         } catch (Error e) {
 567                             Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 568                             // no drop action...
 569                             return;
 570                         }
 571
 572                         dropNode.loadFromJson( pa.get_root().get_object(), 2);
 573                         dropNodeType = dropNode.fqn();
 574                         show_templates = false;
 575
 576
 577                     } else {
 578
 579                         dropNode.setFqn(selection_text);
 580                     }
 581
 582
 583                     // dropList --- need to gather this ...
 584                     print("get dropList for : %s\n",dropNodeType);
 585                     var dropList = _this.main_window.windowstate.file.palete().getDropList(dropNodeType);
 586
 587                     print("dropList: %s\n", string.joinv(" , ", dropList));
 588
 589                     // if drag action is link ... then we can drop it anywahere...
 590                      if ((ctx.get_actions() & Gdk.DragAction.LINK) > 0) {
 591                          // if path is null?? dragging into an empty tree?
 592                          targetData = (path == null ? "" :  path.to_string()) + "|%d".printf((int)pos);
 593                      } else {
 594
 595
 596                         targetData = _this.model.findDropNodeByPath( isEmpty ? "" : path.to_string(), dropList, pos);
 597                      }
 598
 599
 600
 601                     print("targetDAta: " + targetData +"\n");
 602
 603                     if (targetData.length < 1) {
 604
 605                         // invalid drop path..
 606                         if (this.drag_in_motion) {
 607                             Gdk.drag_status(ctx, 0, time);
 608                             this.highlightDropPath("", (Gtk.TreeViewDropPosition)0);
 609                             return;
 610                         }
 611                         Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 612                         // no drop action...
 613                         return;
 614                     }
 615                     // valid drop path..
 616
 617                       var td_ar = targetData.split("|");
 618
 619
 620                     if (this.drag_in_motion) {
 621                         Gdk.drag_status(ctx, Gdk.DragAction.COPY ,time);
 622
 623                         this.highlightDropPath(  td_ar[0]  , (Gtk.TreeViewDropPosition)int.parse(td_ar[1]));
 624                         return;
 625                     }
 626                     // continue on to allow drop..
 627
 628
 629                     // at this point, drag is not in motion... -- as checked above... - so it's a real drop event..
 630
 631
 632                     _this.model.dropNode(targetData, dropNode, show_templates);
 633                     print("ADD new node!!!\n");
 634
 635                     ///Xcls_DialogTemplateSelect.singleton().show( _this.model.file.palete(), node);
 636
 637                     Gtk.drag_finish (ctx, false, false,time);
 638
 639
 640
 641
 642
 643             });
 644             this.el.drag_drop.connect( (  ctx, x, y, time)  => {
 645                   //Seed.print("TARGET: drag-drop");
 646
 647
 648                 var src = Gtk.drag_get_source_widget(ctx);
 649
 650                if (src != this.el) {
 651
 652
 653
 654                    this.drag_in_motion = false;
 655                         // request data that will be recieved by the recieve...
 656                     Gtk.drag_get_data
 657                     (
 658                             this.el,         // will receive 'drag-data-received' signal
 659                             ctx,        // represents the current state of the DnD
 660                             Gdk.Atom.intern("application/json",true),    // the target type we want
 661                             time            // time stamp
 662                     );
 663
 664
 665                     // No target offered by source => error
 666
 667
 668                      return  false;
 669                  }
 670
 671                  // handle drop around self..
 672
 673
 674
 675                 //print("GETTING POS");
 676                 var  targetData = "";
 677
 678                 Gtk.TreePath path;
 679                 Gtk.TreeViewDropPosition pos;
 680                 var isOver = _this.view.el.get_dest_row_at_pos(this.drag_x,this.drag_y, out path, out pos);
 681
 682                 // if there are not items in the tree.. the we have to set isOver to true for anything..
 683                 var isEmpty = false;
 684                 if (_this.model.el.iter_n_children(null) < 1) {
 685                     print("got NO children?\n");
 686                     isOver = true; //???
 687                     isEmpty = true;
 688                     pos = Gtk.TreeViewDropPosition.INTO_OR_AFTER;
 689                 }
 690
 691
 692
 693                 //var action = Gdk.DragAction.COPY;
 694                     // unless we are copying!!! ctl button..
 695
 696                 var action = (ctx.get_actions() & Gdk.DragAction.MOVE) > 0 ?
 697                              Gdk.DragAction.COPY  : Gdk.DragAction.MOVE ;
 698                             // Gdk.DragAction.MOVE : Gdk.DragAction.COPY ;
 699
 700
 701                 if (_this.model.el.iter_n_children(null) < 1) {
 702                     // no children.. -- asume it's ok..
 703
 704                     targetData = "|%d|".printf((int)Gtk.TreeViewDropPosition.INTO_OR_AFTER);
 705
 706                     // continue through to allow drop...
 707
 708                 } else {
 709
 710
 711
 712
 713
 714                             //print("ISOVER? " + isOver);
 715                     if (!isOver) {
 716
 717                         Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 718                         return true; // not over apoint!?! - no action on drop or motion..
 719                     }
 720
 721                     // drag node is parent of child..
 722                     //console.log("SRC TREEPATH: " + src.treepath);
 723                     //console.log("TARGET TREEPATH: " + data.path.to_string());
 724
 725                     // nned to check a  few here..
 726                     //Gtk.TreeViewDropPosition.INTO_OR_AFTER
 727                     //Gtk.TreeViewDropPosition.INTO_OR_BEFORE
 728                     //Gtk.TreeViewDropPosition.AFTER
 729                     //Gtk.TreeViewDropPosition.BEFORE
 730
 731                     // locally dragged items to not really use the
 732                     var selection_text = this.dragData;
 733
 734
 735
 736                     if (selection_text == null || selection_text.length < 1) {
 737                         //print("Error  - drag selection text returned NULL");
 738
 739                          Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 740                          return true; /// -- fixme -- this is not really correct..
 741                     }
 742
 743                             // see if we are dragging into ourself?
 744                             print ("got selection text of  " + selection_text);
 745
 746                     var target_path = path.to_string();
 747                     //print("target_path="+target_path);
 748
 749                     //
 750                     if (selection_text  == target_path) {
 751                         print("self drag ?? == we should perhaps allow copy onto self..\n");
 752
 753                          Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 754
 755                          return true; /// -- fixme -- this is not really correct..
 756
 757                     }
 758
 759                     // check that
 760                     //print("DUMPING DATA");
 761                     //console.dump(data);
 762                     // path, pos
 763
 764                     //print(data.path.to_string() +' => '+  data.pos);
 765
 766                     // dropList is a list of xtypes that this node could be dropped on.
 767                     // it is set up when we start to drag..
 768
 769
 770                     targetData = _this.model.findDropNodeByPath( path.to_string(), this.dropList, pos);
 771
 772                     print("targetDAta: " + targetData +"\n");
 773
 774                     if (targetData.length < 1) {
 775                         //print("Can not find drop node path");
 776
 777                         Gtk.drag_finish (ctx, false, false, time);        // drop failed..
 778                         return true;
 779                     }
 780
 781
 782
 783                             // continue on to allow drop..
 784               }
 785                     // at this point, drag is not in motion... -- as checked above... - so it's a real drop event..
 786
 787
 788                  var delete_selection_data = false;
 789
 790                 if (action == Gdk.DragAction.ASK)  {
 791                     /* Ask the user to move or copy, then set the ctx action. */
 792                 }
 793
 794                 if (action == Gdk.DragAction.MOVE) {
 795                     delete_selection_data = true;
 796                 }
 797
 798                             // drag around.. - reorder..
 799                 _this.model.moveNode(targetData, action);
 800
 801
 802
 803
 804
 805                     // we can send stuff to souce here...
 806
 807
 808             // do we always say failure, so we handle the reall drop?
 809                 Gtk.drag_finish (ctx, false, false,time); //delete_selection_data, time);
 810
 811                 return true;
 812
 813
 814
 815
 816
 817
 818             });
 819         }
 820
 821         // user defined functions
 822         public           void highlightDropPath ( string treepath, Gtk.TreeViewDropPosition pos) {
 823
 824                 // highlighting for drag/drop
 825                 if (treepath.length > 0) {
 826                     this.el.set_drag_dest_row(  new  Gtk.TreePath.from_string( treepath ), pos);
 827                   } else {
 828                     this.el.set_drag_dest_row(null, Gtk.TreeViewDropPosition.INTO_OR_AFTER);
 829                  }
 830
 831         }
 832         public           void selectNode (string treepath_str, string source) {
 833                 this.lastEventSource = source;
 834             //this.selection.select_path(new  Gtk.TreePath.from_string( treepath_str));
 835              var tp = new Gtk.TreePath.from_string(treepath_str);
 836
 837              this.el.set_cursor(tp, null, false);
 838              this.el.scroll_to_cell(tp, null, false, 0,0);
 839         }
 840     }
 841     public class Xcls_model : Object
 842     {
 843         public Gtk.TreeStore el;
 844         private Xcls_WindowLeftTree  _this;
 845
 846
 847             // my vars (def)
 848         public DialogTemplateSelect template_select;
 849         public string activePath;
 850
 851         // ctor
 852         public Xcls_model(Xcls_WindowLeftTree _owner )
 853         {
 854             _this = _owner;
 855             _this.model = this;
 856             this.el = new Gtk.TreeStore( 3, typeof(string),typeof(string),typeof(Object) );
 857
 858             // my vars (dec)
 859             this.template_select = null;
 860             this.activePath = "";
 861
 862             // set gobject values
 863
 864             // init method
 865
 866             print("model initialized");
 867         }
 868
 869         // user defined functions
 870         public           string findDropNode (string treepath_str, string[] targets) {
 871
 872             // this is used by the dragdrop code in the roo version AFAIR..
 873
 874             //var path = treepath_str.replace(/^builder-/, '');
 875             // treemap is depreciated... - should really check if model has any entries..
 876
 877             if (this.el.iter_n_children(null) < 1) {
 878                 //print("NO KEYS");
 879                 return "|%d".printf((int)Gtk.TreeViewDropPosition.INTO_OR_AFTER);
 880             }
 881             //print("FIND treepath: " + path);
 882             //console.dump(this.treemap);
 883
 884             //if (!treepath_str.match(/^builder-/)) {
 885             //    return []; // nothing!
 886             //}
 887             if (targets.length > 0 && targets[0] == "*") {
 888                 return  treepath_str;
 889             }
 890             return this.findDropNodeByPath(treepath_str,targets, -1);
 891         }
 892         public           void loadFile (JsRender.JsRender f) {
 893             //console.dump(f);
 894             this.el.clear();
 895
 896             // needed???
 897             _this.main_window.windowstate.file = f;
 898
 899
 900             if (f.tree == null) {
 901                     try {
 902                         f.loadItems( );
 903                 } catch (Error e) {
 904                         return;
 905                 }
 906             }
 907             // if it's still null?
 908             if (f.tree == null) {
 909                 return;
 910             }
 911
 912             var o = new Gee.ArrayList<JsRender.Node>();
 913             o.add(f.tree);
 914             this.load(o,null);
 915
 916             _this.view.el.expand_all();
 917
 918             if (f.tree.items.size < 1) {
 919                 // single item..
 920
 921                 //this.get('/Window.leftvpaned').el.set_position(80);
 922                 // select first...
 923                 _this.view.el.set_cursor(
 924                     new  Gtk.TreePath.from_string("0"), null, false);
 925
 926
 927             } else {
 928                   //this.get('/Window.leftvpaned').el.set_position(200);
 929             }
 930
 931             return;
 932
 933
 934         }
 935         public    void updateSelected () {
 936
 937
 938             var s = _this.view.el.get_selection();
 939
 940              Gtk.TreeIter iter;
 941             Gtk.TreeModel mod;
 942
 943
 944
 945             if (!s.get_selected(out mod, out iter)) {
 946                 return; // nothing seleted..
 947             }
 948
 949           GLib.Value value;
 950             this.el.get_value(iter, 2, out value);
 951             var node = (JsRender.Node)(value.get_object());
 952
 953               this.el.set(iter, 0, node.nodeTitle(),
 954                         1, node.nodeTip(), -1
 955                 );
 956         }
 957         public           string findDropNodeByPath (string treepath_str, string[] targets, int in_pref = -1) {
 958
 959             var path = treepath_str; // dupe it..
 960
 961
 962             // pref : 3 = ontop - 0 = after, 1 = before
 963             int pref = in_pref < 0  ?  Gtk.TreeViewDropPosition.INTO_OR_AFTER : in_pref;
 964
 965             var last = "";
 966
 967             //console.dump(this.treemap);
 968
 969             print("findDropNodeByPath : got path length %d / %s\n", path.length, path);
 970
 971             if (path.length == 0) {
 972                 // top drop. // just return empty..
 973                 return "|%d".printf((int)pref) ;
 974
 975             }
 976
 977
 978             while (path.length > 0) {
 979
 980                 if (path.length == treepath_str.length && pref != Gtk.TreeViewDropPosition.INTO_OR_AFTER) {
 981                     if (path.last_index_of(":") < 0 ) {
 982                         return "";
 983                     }
 984                     path = path.substring(0, path.last_index_of(":"));
 985                     last = treepath_str;
 986                     print("DROP  before or after : using %s\n",path);
 987                     continue;
 988                 }
 989
 990                 //print("LOOKING FOR PATH: " + path);
 991                 var node_data = this.pathToNode(path);
 992
 993                 if (node_data == null) {
 994                     print("node not found");
 995                     return "";
 996                 }
 997
 998                 var xname = node_data.fqn();
 999                 var match = "";
1000                 var prop = "";
1001
1002                 for (var i =0; i < targets.length; i++)  {
1003                     var tg = targets[i];
1004                     if ((tg == xname)  ) {
1005                         match = tg;
1006                         break;
1007                     }
1008                     // if target is "xxxx:name"
1009                     if (tg.contains(xname +":")) {
1010                         match = tg;
1011                         var ar = tg.split(":");
1012                         prop = ar[1];
1013                         break;
1014                     }
1015                 }
1016
1017                 if (match.length > 0) {
1018                     if (last.length > 0) { // pref is after/before..
1019                         // then it's after last
1020                         //if (pref > 1) {
1021                         //    return "";
1022                         //}
1023                         return last + "|%d".printf((int)pref) + "|" + prop;
1024
1025
1026                     }
1027                     // we need to add prop - as :store -> needs to bee added when dropping onto.
1028                     return path + "|%d".printf( (int) Gtk.TreeViewDropPosition.INTO_OR_AFTER)  + "|" + prop;
1029                 }
1030                 /*
1031                 last = "" + path;
1032                 var par = path.split(":");
1033                 string [] ppar = {};
1034                 for (var i = 0; i < par.length-1; i++) {
1035                     ppar += par[i];
1036                 }
1037
1038                 path = string.joinv(":", ppar);
1039                 */
1040                 break;
1041
1042             }
1043
1044             return "";
1045
1046         }
1047         public           void moveNode (string target_data, Gdk.DragAction action)
1048         {
1049
1050            /// target_data = "path|pos");
1051
1052
1053             //print("MOVE NODE");
1054             // console.dump(target_data);
1055             Gtk.TreeIter old_iter;
1056             Gtk.TreeModel mod;
1057
1058             var s = _this.view.el.get_selection();
1059             s.get_selected(out mod , out old_iter);
1060             mod.get_path(old_iter);
1061
1062             var node = this.pathToNode(mod.get_path(old_iter).to_string());
1063             //console.dump(node);
1064             if (node == null) {
1065                 print("moveNode: ERROR - node is null?");
1066             }
1067
1068
1069
1070             // needs to drop first, otherwise the target_data
1071             // treepath will be invalid.
1072
1073
1074             if ((action & Gdk.DragAction.MOVE) > 0) {
1075                     print("REMOVING OLD NODE : " + target_data + "\n");
1076                     node.remove();
1077                     this.dropNode(target_data, node, false);
1078                     this.el.remove(ref old_iter);
1079
1080
1081
1082             } else {
1083                 print("DROPPING NODE // copy: " + target_data + "\n");
1084                 node = node.deepClone();
1085                 this.dropNode(target_data, node, false);
1086             }
1087             _this.changed();
1088             this.activePath= "";
1089             //this.updateNode(false,true);
1090         }
1091         public           void load (Gee.ArrayList<JsRender.Node> tr, Gtk.TreeIter? iter)
1092         {
1093             Gtk.TreeIter citer;
1094             //this.insert(citer,iter,0);
1095             for(var i =0 ; i < tr.size; i++) {
1096                 if (iter != null) {
1097                     this.el.insert(out citer,iter,-1); // why not append?
1098                 } else {
1099                     this.el.append(out citer,null);
1100                 }
1101
1102                 this.el.set(citer, 0, tr.get(i).nodeTitle(),
1103                         1, tr.get(i).nodeTip(), -1
1104                 );
1105                 var o =   GLib.Value(typeof(Object));
1106                 o.set_object((Object)tr.get(i));
1107
1108                 this.el.set_value(citer, 2, o);
1109
1110                 if (tr.get(i).items.size > 0) {
1111                     this.load(tr.get(i).items, citer);
1112                 }
1113
1114             }
1115
1116
1117         }
1118         public           void deleteSelected () {
1119
1120             print("DELETE SELECTED?");
1121             //_this.view.blockChanges = true;
1122             print("GET SELECTION?");
1123
1124             var s = _this.view.el.get_selection();
1125
1126             print("GET  SELECTED?");
1127            Gtk.TreeIter iter;
1128             Gtk.TreeModel mod;
1129
1130
1131             if (!s.get_selected(out mod, out iter)) {
1132                 return; // nothing seleted..
1133             }
1134
1135
1136
1137             this.activePath= "";
1138             print("GET  vnode value?");
1139
1140             GLib.Value value;
1141             this.el.get_value(iter, 2, out value);
1142             var data = (JsRender.Node)(value.get_object());
1143             print("removing node from Render\n");
1144             if (data.parent == null) {
1145                _this.main_window.windowstate.file.tree = null;
1146             } else {
1147                 data.remove();
1148             }
1149             print("removing node from Tree\n");
1150             s.unselect_all();
1151             this.el.remove(ref iter);
1152
1153
1154
1155
1156             //
1157
1158
1159
1160
1161             this.activePath= ""; // again!?!?
1162             //this.changed(null,true);
1163
1164             _this.changed();
1165
1166             _this.view.blockChanges = false;
1167         }
1168         public           JsRender.Node pathToNode (string path) {
1169
1170
1171              Gtk.TreeIter   iter;
1172              _this.model.el.get_iter_from_string(out iter, path);
1173
1174              GLib.Value value;
1175              _this.model.el.get_value(iter, 2, out value);
1176
1177              return (JsRender.Node)value.dup_object();
1178
1179         }
1180         public           void dropNode (string target_data_str, JsRender.Node node, bool show_templates) {
1181         //         print("drop Node");
1182              // console.dump(node);
1183           //    console.dump(target_data);
1184
1185
1186                 // 0 = before , 1=after 2/3 onto
1187
1188
1189                 var target_data= target_data_str.split("|");
1190
1191                 var parent_str = target_data[0].length > 0 ? target_data[0] : "";
1192                 var pos = target_data.length > 1 ? int.parse(target_data[1]) : 2; // ontop..
1193
1194
1195                 Gtk.TreePath tree_path  =   parent_str.length > 0 ? new  Gtk.TreePath.from_string( parent_str ) : null;
1196
1197
1198
1199                 //print("add " + tp + "@" + target_data[1]  );
1200
1201                 JsRender.Node parentNode = null;
1202
1203                 Gtk.TreeIter iter_after;
1204                 Gtk.TreeIter iter_par ;
1205
1206
1207                  if (target_data.length == 3 && target_data[2].length > 0) {
1208                     node.props.set("* prop", target_data[2]);
1209                 }
1210
1211                 Gtk.TreePath expand_parent = null;
1212
1213                 // we only need to show the template if it's come from else where?
1214                  if (show_templates) {
1215
1216                      var ts = _this.main_window.windowstate.template_select;
1217
1218                      var new_node = ts.show(
1219                           _this.main_window, // (Gtk.Window) _this.el.get_toplevel (),
1220                          _this.main_window.windowstate.file.palete(),
1221                             node,
1222                             _this.main_window.windowstate.project);
1223
1224                      if (new_node == null) {
1225                          return; // do not add?
1226                      }
1227                      node = new_node;
1228                 }
1229
1230                  //print("pos is %d  \n".printf(pos));
1231
1232                  Gtk.TreeIter n_iter;
1233
1234                  if ( parent_str.length < 1) {
1235                       this.el.append(out n_iter, null); // drop at top level..
1236                       node.parent = null;
1237                       _this.main_window.windowstate.file.tree = node;
1238
1239
1240                 } else   if (pos  < 2) {
1241                     //print(target_data[1]  > 0 ? 'insert_after' : 'insert_before');
1242
1243                     this.el.get_iter(out iter_after, tree_path );
1244                     this.el.iter_parent(out iter_par, iter_after);
1245                     expand_parent = this.el.get_path(iter_par);
1246
1247                     GLib.Value value;
1248                     this.el.get_value( iter_par, 2, out value);
1249                     parentNode =  (JsRender.Node)value.dup_object();
1250
1251
1252                     this.el.get_value( iter_after, 2, out value);
1253                     var relNode =  (JsRender.Node)value.dup_object();
1254
1255                     if ( pos  > 0 ) {
1256
1257                         this.el.insert_after(out n_iter,    iter_par  , iter_after);
1258                         var ix = parentNode.items.index_of(relNode);
1259                         parentNode.items.insert(ix+1, node);
1260
1261                     } else {
1262                         this.el.insert_before(out n_iter,  iter_par  , iter_after);
1263                         var ix = parentNode.items.index_of(relNode);
1264                         parentNode.items.insert(ix, node);
1265
1266                     }
1267                     node.parent = parentNode;
1268
1269
1270
1271                 } else {
1272                    //  print("appending to  " + parent_str);
1273                     this.el.get_iter(out iter_par, tree_path);
1274                     this.el.append(out n_iter,   iter_par );
1275                     expand_parent = this.el.get_path(iter_par);
1276
1277                     GLib.Value value;
1278                     this.el.get_value( iter_par, 2, out value);
1279                     parentNode =  (JsRender.Node)value.dup_object();
1280                     node.parent = parentNode;
1281                     parentNode.items.add(node);
1282                 }
1283
1284                 // reparent node in tree...
1285
1286
1287                 // why only on no parent???
1288
1289                 //if (node.parent = null) {
1290
1291
1292
1293                 //}
1294
1295
1296                 // work out what kind of packing to use.. -- should be in
1297                 if (!node.has("pack")   && parent_str.length > 1) {
1298
1299                     _this.main_window.windowstate.file.palete().fillPack(node,parentNode);
1300
1301
1302                 }
1303
1304                 // add the node...
1305
1306                 this.el.set(n_iter, 0, node.nodeTitle(), 1, node.nodeTip(), -1  );
1307                 var o =   GLib.Value(typeof(Object));
1308                 o.set_object((Object)node);
1309
1310                 this.el.set_value(n_iter, 2, o);
1311
1312
1313
1314
1315         // load children - if it has any..
1316
1317                 if (node.items.size > 0) {
1318                     this.load(node.items, n_iter);
1319                     _this.view.el.expand_row(this.el.get_path(n_iter), true);
1320                 } else if (expand_parent != null && !_this.view.el.is_row_expanded(expand_parent)) {
1321                    _this.view.el.expand_row(expand_parent,true);
1322                 }
1323
1324                 //if (tp != null && (node.items.length() > 0 || pos > 1)) {
1325                 //    _this.view.el.expand_row(this.el.get_path(iter_par), true);
1326                // }
1327                 // wee need to get the empty proptypes from somewhere..
1328
1329                 //var olditer = this.activeIter;
1330                 this.activePath = this.el.get_path(n_iter).to_string();
1331
1332
1333
1334
1335                 _this.view.el.set_cursor(this.el.get_path(n_iter), null, false);
1336                 _this.changed();
1337
1338
1339
1340         }
1341         public string treePathFromNode (JsRender.Node node) {
1342             // iterate through the tree and find the node
1343             var ret = "";
1344
1345             this.el.foreach((mod, pth, iter) => {
1346                 // get the node..
1347
1348
1349                  GLib.Value value;
1350                  _this.model.el.get_value(iter, 2, out value);
1351
1352
1353
1354                  var n = (JsRender.Node)value;
1355
1356                  print("compare %s to %s\n", n.fqn(), node.fqn());
1357                 if (node == n) {
1358                     ret = pth.to_string();
1359                     return true;
1360                 }
1361                 return false;
1362             });
1363             return ret;
1364
1365         }
1366     }
1367
1368     public class Xcls_TreeViewColumn4 : Object
1369     {
1370         public Gtk.TreeViewColumn el;
1371         private Xcls_WindowLeftTree  _this;
1372
1373
1374             // my vars (def)
1375
1376         // ctor
1377         public Xcls_TreeViewColumn4(Xcls_WindowLeftTree _owner )
1378         {
1379             _this = _owner;
1380             this.el = new Gtk.TreeViewColumn();
1381
1382             // my vars (dec)
1383
1384             // set gobject values
1385             this.el.title = "test";
1386             var child_0 = new Xcls_renderer( _this );
1387             child_0.ref();
1388             this.el.pack_start (  child_0.el , true );
1389
1390             // init method
1391
1392             this.el.add_attribute(_this.renderer.el , "markup", 0 );
1393         }
1394
1395         // user defined functions
1396     }
1397     public class Xcls_renderer : Object
1398     {
1399         public Gtk.CellRendererText el;
1400         private Xcls_WindowLeftTree  _this;
1401
1402
1403             // my vars (def)
1404
1405         // ctor
1406         public Xcls_renderer(Xcls_WindowLeftTree _owner )
1407         {
1408             _this = _owner;
1409             _this.renderer = this;
1410             this.el = new Gtk.CellRendererText();
1411
1412             // my vars (dec)
1413
1414             // set gobject values
1415         }
1416
1417         // user defined functions
1418     }
1419
1420
1421
1422     public class Xcls_LeftTreeMenu : Object
1423     {
1424         public Gtk.Menu el;
1425         private Xcls_WindowLeftTree  _this;
1426
1427
1428             // my vars (def)
1429
1430         // ctor
1431         public Xcls_LeftTreeMenu(Xcls_WindowLeftTree _owner )
1432         {
1433             _this = _owner;
1434             _this.LeftTreeMenu = this;
1435             this.el = new Gtk.Menu();
1436
1437             // my vars (dec)
1438
1439             // set gobject values
1440             var child_0 = new Xcls_MenuItem7( _this );
1441             child_0.ref();
1442             this.el.add (  child_0.el  );
1443             var child_1 = new Xcls_MenuItem8( _this );
1444             child_1.ref();
1445             this.el.add (  child_1.el  );
1446             var child_2 = new Xcls_MenuItem9( _this );
1447             child_2.ref();
1448             this.el.add (  child_2.el  );
1449         }
1450
1451         // user defined functions
1452     }
1453     public class Xcls_MenuItem7 : Object
1454     {
1455         public Gtk.MenuItem el;
1456         private Xcls_WindowLeftTree  _this;
1457
1458
1459             // my vars (def)
1460
1461         // ctor
1462         public Xcls_MenuItem7(Xcls_WindowLeftTree _owner )
1463         {
1464             _this = _owner;
1465             this.el = new Gtk.MenuItem();
1466
1467             // my vars (dec)
1468
1469             // set gobject values
1470             this.el.label = "Delete Element";
1471
1472             //listeners
1473             this.el.activate.connect( ( ) => {
1474
1475                 print("ACTIVATE?");
1476
1477
1478                  _this.model.deleteSelected();
1479             });
1480         }
1481
1482         // user defined functions
1483     }
1484
1485     public class Xcls_MenuItem8 : Object
1486     {
1487         public Gtk.MenuItem el;
1488         private Xcls_WindowLeftTree  _this;
1489
1490
1491             // my vars (def)
1492
1493         // ctor
1494         public Xcls_MenuItem8(Xcls_WindowLeftTree _owner )
1495         {
1496             _this = _owner;
1497             this.el = new Gtk.MenuItem();
1498
1499             // my vars (dec)
1500
1501             // set gobject values
1502             this.el.label = "Save as Template";
1503
1504             //listeners
1505             this.el.activate.connect( () => {
1506
1507                  DialogSaveTemplate.singleton().show(
1508                         (Gtk.Window) _this.el.get_toplevel (),
1509                         _this.main_window.windowstate.file.palete(),
1510                         _this.getActiveElement()
1511                 );
1512
1513
1514             });
1515         }
1516
1517         // user defined functions
1518     }
1519
1520     public class Xcls_MenuItem9 : Object
1521     {
1522         public Gtk.MenuItem el;
1523         private Xcls_WindowLeftTree  _this;
1524
1525
1526             // my vars (def)
1527
1528         // ctor
1529         public Xcls_MenuItem9(Xcls_WindowLeftTree _owner )
1530         {
1531             _this = _owner;
1532             this.el = new Gtk.MenuItem();
1533
1534             // my vars (dec)
1535
1536             // set gobject values
1537             this.el.label = "Save as Module";
1538
1539             //listeners
1540             this.el.activate.connect( () => {
1541                 var node = _this.getActiveElement();
1542                  var name = DialogSaveModule.singleton().show(
1543                         (Gtk.Window) _this.el.get_toplevel (),
1544                         _this.main_window.windowstate.project,
1545                         node
1546                  );
1547                  if (name.length < 1) {
1548                         return;
1549
1550                  }
1551                  node.props.set("* xinclude", name);
1552                  node.items.clear();
1553
1554
1555                 var s = _this.view.el.get_selection();
1556
1557                 print("GET  SELECTED?");
1558                 Gtk.TreeIter iter;
1559                 Gtk.TreeModel mod;
1560
1561
1562                 if (!s.get_selected(out mod, out iter)) {
1563                     return; // nothing seleted..
1564                 }
1565                 Gtk.TreeIter citer;
1566                 var n_cn = mod.iter_n_children(iter) -1;
1567                 for (var i = n_cn; i > -1; i--) {
1568                     mod.iter_nth_child(out citer, iter, i);
1569
1570
1571                     print("removing node from Tree\n");
1572
1573                     _this.model.el.remove(ref citer);
1574                 }
1575                 _this.changed();
1576                 _this.node_selected(node, "tree");
1577
1578
1579             });
1580         }
1581
1582         // user defined functions
1583     }
1584
1585
1586 }