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