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