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