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) {
 831             //this.selection.select_path(new  Gtk.TreePath.from_string( treepath_str));
 832              var tp = new Gtk.TreePath.from_string(treepath_str);
 833
 834              this.el.set_cursor(tp, null, false);
 835              this.el.scroll_to_cell(tp, null, false, 0,0);
 836         }
 837     }
 838     public class Xcls_model : Object
 839     {
 840         public Gtk.TreeStore el;
 841         private Xcls_WindowLeftTree  _this;
 842
 843
 844             // my vars (def)
 845         public DialogTemplateSelect template_select;
 846         public string activePath;
 847
 848         // ctor
 849         public Xcls_model(Xcls_WindowLeftTree _owner )
 850         {
 851             _this = _owner;
 852             _this.model = this;
 853             this.el = new Gtk.TreeStore( 3, typeof(string),typeof(string),typeof(Object) );
 854
 855             // my vars (dec)
 856             this.template_select = null;
 857             this.activePath = "";
 858
 859             // set gobject values
 860
 861             // init method
 862
 863             print("model initialized");
 864         }
 865
 866         // user defined functions
 867         public           string findDropNode (string treepath_str, string[] targets) {
 868
 869             // this is used by the dragdrop code in the roo version AFAIR..
 870
 871             //var path = treepath_str.replace(/^builder-/, '');
 872             // treemap is depreciated... - should really check if model has any entries..
 873
 874             if (this.el.iter_n_children(null) < 1) {
 875                 //print("NO KEYS");
 876                 return "|%d".printf((int)Gtk.TreeViewDropPosition.INTO_OR_AFTER);
 877             }
 878             //print("FIND treepath: " + path);
 879             //console.dump(this.treemap);
 880
 881             //if (!treepath_str.match(/^builder-/)) {
 882             //    return []; // nothing!
 883             //}
 884             if (targets.length > 0 && targets[0] == "*") {
 885                 return  treepath_str;
 886             }
 887             return this.findDropNodeByPath(treepath_str,targets, -1);
 888         }
 889         public           void loadFile (JsRender.JsRender f) {
 890             //console.dump(f);
 891             this.el.clear();
 892
 893             // needed???
 894             _this.main_window.windowstate.file = f;
 895
 896
 897             if (f.tree == null) {
 898                     try {
 899                         f.loadItems( );
 900                 } catch (Error e) {
 901                         return;
 902                 }
 903             }
 904             // if it's still null?
 905             if (f.tree == null) {
 906                 return;
 907             }
 908
 909             var o = new Gee.ArrayList<JsRender.Node>();
 910             o.add(f.tree);
 911             this.load(o,null);
 912
 913             _this.view.el.expand_all();
 914
 915             if (f.tree.items.size < 1) {
 916                 // single item..
 917
 918                 //this.get('/Window.leftvpaned').el.set_position(80);
 919                 // select first...
 920                 _this.view.el.set_cursor(
 921                     new  Gtk.TreePath.from_string("0"), null, false);
 922
 923
 924             } else {
 925                   //this.get('/Window.leftvpaned').el.set_position(200);
 926             }
 927
 928             return;
 929
 930
 931         }
 932         public    void updateSelected () {
 933
 934
 935             var s = _this.view.el.get_selection();
 936
 937              Gtk.TreeIter iter;
 938             Gtk.TreeModel mod;
 939
 940
 941
 942             if (!s.get_selected(out mod, out iter)) {
 943                 return; // nothing seleted..
 944             }
 945
 946           GLib.Value value;
 947             this.el.get_value(iter, 2, out value);
 948             var node = (JsRender.Node)(value.get_object());
 949
 950               this.el.set(iter, 0, node.nodeTitle(),
 951                         1, node.nodeTip(), -1
 952                 );
 953         }
 954         public           string findDropNodeByPath (string treepath_str, string[] targets, int in_pref = -1) {
 955
 956             var path = treepath_str; // dupe it..
 957
 958
 959             // pref : 3 = ontop - 0 = after, 1 = before
 960             int pref = in_pref < 0  ?  Gtk.TreeViewDropPosition.INTO_OR_AFTER : in_pref;
 961
 962             var last = "";
 963
 964             //console.dump(this.treemap);
 965
 966             print("findDropNodeByPath : got path length %d / %s\n", path.length, path);
 967
 968             if (path.length == 0) {
 969                 // top drop. // just return empty..
 970                 return "|%d".printf((int)pref) ;
 971
 972             }
 973
 974
 975             while (path.length > 0) {
 976
 977                 if (path.length == treepath_str.length && pref != Gtk.TreeViewDropPosition.INTO_OR_AFTER) {
 978                     if (path.last_index_of(":") < 0 ) {
 979                         return "";
 980                     }
 981                     path = path.substring(0, path.last_index_of(":"));
 982                     last = treepath_str;
 983                     print("DROP  before or after : using %s\n",path);
 984                     continue;
 985                 }
 986
 987                 //print("LOOKING FOR PATH: " + path);
 988                 var node_data = this.pathToNode(path);
 989
 990                 if (node_data == null) {
 991                     print("node not found");
 992                     return "";
 993                 }
 994
 995                 var xname = node_data.fqn();
 996                 var match = "";
 997                 var prop = "";
 998
 999                 for (var i =0; i < targets.length; i++)  {
1000                     var tg = targets[i];
1001                     if ((tg == xname)  ) {
1002                         match = tg;
1003                         break;
1004                     }
1005                     // if target is "xxxx:name"
1006                     if (tg.contains(xname +":")) {
1007                         match = tg;
1008                         var ar = tg.split(":");
1009                         prop = ar[1];
1010                         break;
1011                     }
1012                 }
1013
1014                 if (match.length > 0) {
1015                     if (last.length > 0) { // pref is after/before..
1016                         // then it's after last
1017                         //if (pref > 1) {
1018                         //    return "";
1019                         //}
1020                         return last + "|%d".printf((int)pref) + "|" + prop;
1021
1022
1023                     }
1024                     // we need to add prop - as :store -> needs to bee added when dropping onto.
1025                     return path + "|%d".printf( (int) Gtk.TreeViewDropPosition.INTO_OR_AFTER)  + "|" + prop;
1026                 }
1027                 /*
1028                 last = "" + path;
1029                 var par = path.split(":");
1030                 string [] ppar = {};
1031                 for (var i = 0; i < par.length-1; i++) {
1032                     ppar += par[i];
1033                 }
1034
1035                 path = string.joinv(":", ppar);
1036                 */
1037                 break;
1038
1039             }
1040
1041             return "";
1042
1043         }
1044         public           void moveNode (string target_data, Gdk.DragAction action)
1045         {
1046
1047            /// target_data = "path|pos");
1048
1049
1050             //print("MOVE NODE");
1051             // console.dump(target_data);
1052             Gtk.TreeIter old_iter;
1053             Gtk.TreeModel mod;
1054
1055             var s = _this.view.el.get_selection();
1056             s.get_selected(out mod , out old_iter);
1057             mod.get_path(old_iter);
1058
1059             var node = this.pathToNode(mod.get_path(old_iter).to_string());
1060             //console.dump(node);
1061             if (node == null) {
1062                 print("moveNode: ERROR - node is null?");
1063             }
1064
1065
1066
1067             // needs to drop first, otherwise the target_data
1068             // treepath will be invalid.
1069
1070
1071             if ((action & Gdk.DragAction.MOVE) > 0) {
1072                     print("REMOVING OLD NODE : " + target_data + "\n");
1073                     node.remove();
1074                     this.dropNode(target_data, node, false);
1075                     this.el.remove(ref old_iter);
1076
1077
1078
1079             } else {
1080                 print("DROPPING NODE // copy: " + target_data + "\n");
1081                 node = node.deepClone();
1082                 this.dropNode(target_data, node, false);
1083             }
1084             _this.changed();
1085             this.activePath= "";
1086             //this.updateNode(false,true);
1087         }
1088         public           void load (Gee.ArrayList<JsRender.Node> tr, Gtk.TreeIter? iter)
1089         {
1090             Gtk.TreeIter citer;
1091             //this.insert(citer,iter,0);
1092             for(var i =0 ; i < tr.size; i++) {
1093                 if (iter != null) {
1094                     this.el.insert(out citer,iter,-1); // why not append?
1095                 } else {
1096                     this.el.append(out citer,null);
1097                 }
1098
1099                 this.el.set(citer, 0, tr.get(i).nodeTitle(),
1100                         1, tr.get(i).nodeTip(), -1
1101                 );
1102                 var o =   GLib.Value(typeof(Object));
1103                 o.set_object((Object)tr.get(i));
1104
1105                 this.el.set_value(citer, 2, o);
1106
1107                 if (tr.get(i).items.size > 0) {
1108                     this.load(tr.get(i).items, citer);
1109                 }
1110
1111             }
1112
1113
1114         }
1115         public           void deleteSelected () {
1116
1117             print("DELETE SELECTED?");
1118             //_this.view.blockChanges = true;
1119             print("GET SELECTION?");
1120
1121             var s = _this.view.el.get_selection();
1122
1123             print("GET  SELECTED?");
1124            Gtk.TreeIter iter;
1125             Gtk.TreeModel mod;
1126
1127
1128             if (!s.get_selected(out mod, out iter)) {
1129                 return; // nothing seleted..
1130             }
1131
1132
1133
1134             this.activePath= "";
1135             print("GET  vnode value?");
1136
1137             GLib.Value value;
1138             this.el.get_value(iter, 2, out value);
1139             var data = (JsRender.Node)(value.get_object());
1140             print("removing node from Render\n");
1141             if (data.parent == null) {
1142                _this.main_window.windowstate.file.tree = null;
1143             } else {
1144                 data.remove();
1145             }
1146             print("removing node from Tree\n");
1147             s.unselect_all();
1148             this.el.remove(ref iter);
1149
1150
1151
1152
1153             //
1154
1155
1156
1157
1158             this.activePath= ""; // again!?!?
1159             //this.changed(null,true);
1160
1161             _this.changed();
1162
1163             _this.view.blockChanges = false;
1164         }
1165         public           JsRender.Node pathToNode (string path) {
1166
1167
1168              Gtk.TreeIter   iter;
1169              _this.model.el.get_iter_from_string(out iter, path);
1170
1171              GLib.Value value;
1172              _this.model.el.get_value(iter, 2, out value);
1173
1174              return (JsRender.Node)value.dup_object();
1175
1176         }
1177         public           void dropNode (string target_data_str, JsRender.Node node, bool show_templates) {
1178         //         print("drop Node");
1179              // console.dump(node);
1180           //    console.dump(target_data);
1181
1182
1183                 // 0 = before , 1=after 2/3 onto
1184
1185
1186                 var target_data= target_data_str.split("|");
1187
1188                 var parent_str = target_data[0].length > 0 ? target_data[0] : "";
1189                 var pos = target_data.length > 1 ? int.parse(target_data[1]) : 2; // ontop..
1190
1191
1192                 Gtk.TreePath tree_path  =   parent_str.length > 0 ? new  Gtk.TreePath.from_string( parent_str ) : null;
1193
1194
1195
1196                 //print("add " + tp + "@" + target_data[1]  );
1197
1198                 JsRender.Node parentNode = null;
1199
1200                 Gtk.TreeIter iter_after;
1201                 Gtk.TreeIter iter_par ;
1202
1203
1204                  if (target_data.length == 3 && target_data[2].length > 0) {
1205                     node.props.set("* prop", target_data[2]);
1206                 }
1207
1208                 Gtk.TreePath expand_parent = null;
1209
1210                 // we only need to show the template if it's come from else where?
1211                  if (show_templates) {
1212
1213                      var ts = _this.main_window.windowstate.template_select;
1214
1215                      var new_node = ts.show(
1216                           _this.main_window, // (Gtk.Window) _this.el.get_toplevel (),
1217                          _this.main_window.windowstate.file.palete(),
1218                             node,
1219                             _this.main_window.windowstate.project);
1220
1221                      if (new_node == null) {
1222                          return; // do not add?
1223                      }
1224                      node = new_node;
1225                 }
1226
1227                  //print("pos is %d  \n".printf(pos));
1228
1229                  Gtk.TreeIter n_iter;
1230
1231                  if ( parent_str.length < 1) {
1232                       this.el.append(out n_iter, null); // drop at top level..
1233                       node.parent = null;
1234                       _this.main_window.windowstate.file.tree = node;
1235
1236
1237                 } else   if (pos  < 2) {
1238                     //print(target_data[1]  > 0 ? 'insert_after' : 'insert_before');
1239
1240                     this.el.get_iter(out iter_after, tree_path );
1241                     this.el.iter_parent(out iter_par, iter_after);
1242                     expand_parent = this.el.get_path(iter_par);
1243
1244                     GLib.Value value;
1245                     this.el.get_value( iter_par, 2, out value);
1246                     parentNode =  (JsRender.Node)value.dup_object();
1247
1248
1249                     this.el.get_value( iter_after, 2, out value);
1250                     var relNode =  (JsRender.Node)value.dup_object();
1251
1252                     if ( pos  > 0 ) {
1253
1254                         this.el.insert_after(out n_iter,    iter_par  , iter_after);
1255                         var ix = parentNode.items.index_of(relNode);
1256                         parentNode.items.insert(ix+1, node);
1257
1258                     } else {
1259                         this.el.insert_before(out n_iter,  iter_par  , iter_after);
1260                         var ix = parentNode.items.index_of(relNode);
1261                         parentNode.items.insert(ix, node);
1262
1263                     }
1264                     node.parent = parentNode;
1265
1266
1267
1268                 } else {
1269                    //  print("appending to  " + parent_str);
1270                     this.el.get_iter(out iter_par, tree_path);
1271                     this.el.append(out n_iter,   iter_par );
1272                     expand_parent = this.el.get_path(iter_par);
1273
1274                     GLib.Value value;
1275                     this.el.get_value( iter_par, 2, out value);
1276                     parentNode =  (JsRender.Node)value.dup_object();
1277                     node.parent = parentNode;
1278                     parentNode.items.add(node);
1279                 }
1280
1281                 // reparent node in tree...
1282
1283
1284                 // why only on no parent???
1285
1286                 //if (node.parent = null) {
1287
1288
1289
1290                 //}
1291
1292
1293                 // work out what kind of packing to use.. -- should be in
1294                 if (!node.has("pack")   && parent_str.length > 1) {
1295
1296                     _this.main_window.windowstate.file.palete().fillPack(node,parentNode);
1297
1298
1299                 }
1300
1301                 // add the node...
1302
1303                 this.el.set(n_iter, 0, node.nodeTitle(), 1, node.nodeTip(), -1  );
1304                 var o =   GLib.Value(typeof(Object));
1305                 o.set_object((Object)node);
1306
1307                 this.el.set_value(n_iter, 2, o);
1308
1309
1310
1311
1312         // load children - if it has any..
1313
1314                 if (node.items.size > 0) {
1315                     this.load(node.items, n_iter);
1316                     _this.view.el.expand_row(this.el.get_path(n_iter), true);
1317                 } else if (expand_parent != null && !_this.view.el.is_row_expanded(expand_parent)) {
1318                    _this.view.el.expand_row(expand_parent,true);
1319                 }
1320
1321                 //if (tp != null && (node.items.length() > 0 || pos > 1)) {
1322                 //    _this.view.el.expand_row(this.el.get_path(iter_par), true);
1323                // }
1324                 // wee need to get the empty proptypes from somewhere..
1325
1326                 //var olditer = this.activeIter;
1327                 this.activePath = this.el.get_path(n_iter).to_string();
1328
1329
1330
1331
1332                 _this.view.el.set_cursor(this.el.get_path(n_iter), null, false);
1333                 _this.changed();
1334
1335
1336
1337         }
1338         public string treePathFromNode (JsRender.Node node) {
1339             // iterate through the tree and find the node
1340             var ret = "";
1341
1342             this.el.foreach((mod, pth, iter) => {
1343                 // get the node..
1344
1345
1346                  GLib.Value value;
1347                  _this.model.el.get_value(iter, 2, out value);
1348
1349
1350
1351                  var n = (JsRender.Node)value;
1352
1353                  print("compare %s to %s\n", n.fqn(), node.fqn());
1354                 if (node == n) {
1355                     ret = pth.to_string();
1356                     return true;
1357                 }
1358                 return false;
1359             });
1360             return ret;
1361
1362         }
1363     }
1364
1365     public class Xcls_TreeViewColumn4 : Object
1366     {
1367         public Gtk.TreeViewColumn el;
1368         private Xcls_WindowLeftTree  _this;
1369
1370
1371             // my vars (def)
1372
1373         // ctor
1374         public Xcls_TreeViewColumn4(Xcls_WindowLeftTree _owner )
1375         {
1376             _this = _owner;
1377             this.el = new Gtk.TreeViewColumn();
1378
1379             // my vars (dec)
1380
1381             // set gobject values
1382             this.el.title = "test";
1383             var child_0 = new Xcls_renderer( _this );
1384             child_0.ref();
1385             this.el.pack_start (  child_0.el , true );
1386
1387             // init method
1388
1389             this.el.add_attribute(_this.renderer.el , "markup", 0 );
1390         }
1391
1392         // user defined functions
1393     }
1394     public class Xcls_renderer : Object
1395     {
1396         public Gtk.CellRendererText el;
1397         private Xcls_WindowLeftTree  _this;
1398
1399
1400             // my vars (def)
1401
1402         // ctor
1403         public Xcls_renderer(Xcls_WindowLeftTree _owner )
1404         {
1405             _this = _owner;
1406             _this.renderer = this;
1407             this.el = new Gtk.CellRendererText();
1408
1409             // my vars (dec)
1410
1411             // set gobject values
1412         }
1413
1414         // user defined functions
1415     }
1416
1417
1418
1419     public class Xcls_LeftTreeMenu : Object
1420     {
1421         public Gtk.Menu el;
1422         private Xcls_WindowLeftTree  _this;
1423
1424
1425             // my vars (def)
1426
1427         // ctor
1428         public Xcls_LeftTreeMenu(Xcls_WindowLeftTree _owner )
1429         {
1430             _this = _owner;
1431             _this.LeftTreeMenu = this;
1432             this.el = new Gtk.Menu();
1433
1434             // my vars (dec)
1435
1436             // set gobject values
1437             var child_0 = new Xcls_MenuItem7( _this );
1438             child_0.ref();
1439             this.el.add (  child_0.el  );
1440             var child_1 = new Xcls_MenuItem8( _this );
1441             child_1.ref();
1442             this.el.add (  child_1.el  );
1443             var child_2 = new Xcls_MenuItem9( _this );
1444             child_2.ref();
1445             this.el.add (  child_2.el  );
1446         }
1447
1448         // user defined functions
1449     }
1450     public class Xcls_MenuItem7 : Object
1451     {
1452         public Gtk.MenuItem el;
1453         private Xcls_WindowLeftTree  _this;
1454
1455
1456             // my vars (def)
1457
1458         // ctor
1459         public Xcls_MenuItem7(Xcls_WindowLeftTree _owner )
1460         {
1461             _this = _owner;
1462             this.el = new Gtk.MenuItem();
1463
1464             // my vars (dec)
1465
1466             // set gobject values
1467             this.el.label = "Delete Element";
1468
1469             //listeners
1470             this.el.activate.connect( ( ) => {
1471
1472                 print("ACTIVATE?");
1473
1474
1475                  _this.model.deleteSelected();
1476             });
1477         }
1478
1479         // user defined functions
1480     }
1481
1482     public class Xcls_MenuItem8 : Object
1483     {
1484         public Gtk.MenuItem el;
1485         private Xcls_WindowLeftTree  _this;
1486
1487
1488             // my vars (def)
1489
1490         // ctor
1491         public Xcls_MenuItem8(Xcls_WindowLeftTree _owner )
1492         {
1493             _this = _owner;
1494             this.el = new Gtk.MenuItem();
1495
1496             // my vars (dec)
1497
1498             // set gobject values
1499             this.el.label = "Save as Template";
1500
1501             //listeners
1502             this.el.activate.connect( () => {
1503
1504                  DialogSaveTemplate.singleton().show(
1505                         (Gtk.Window) _this.el.get_toplevel (),
1506                         _this.main_window.windowstate.file.palete(),
1507                         _this.getActiveElement()
1508                 );
1509
1510
1511             });
1512         }
1513
1514         // user defined functions
1515     }
1516
1517     public class Xcls_MenuItem9 : Object
1518     {
1519         public Gtk.MenuItem el;
1520         private Xcls_WindowLeftTree  _this;
1521
1522
1523             // my vars (def)
1524
1525         // ctor
1526         public Xcls_MenuItem9(Xcls_WindowLeftTree _owner )
1527         {
1528             _this = _owner;
1529             this.el = new Gtk.MenuItem();
1530
1531             // my vars (dec)
1532
1533             // set gobject values
1534             this.el.label = "Save as Module";
1535
1536             //listeners
1537             this.el.activate.connect( () => {
1538                 var node = _this.getActiveElement();
1539                  var name = DialogSaveModule.singleton().show(
1540                         (Gtk.Window) _this.el.get_toplevel (),
1541                         _this.main_window.windowstate.project,
1542                         node
1543                  );
1544                  if (name.length < 1) {
1545                         return;
1546
1547                  }
1548                  node.props.set("* xinclude", name);
1549                  node.items.clear();
1550
1551
1552                 var s = _this.view.el.get_selection();
1553
1554                 print("GET  SELECTED?");
1555                 Gtk.TreeIter iter;
1556                 Gtk.TreeModel mod;
1557
1558
1559                 if (!s.get_selected(out mod, out iter)) {
1560                     return; // nothing seleted..
1561                 }
1562                 Gtk.TreeIter citer;
1563                 var n_cn = mod.iter_n_children(iter) -1;
1564                 for (var i = n_cn; i > -1; i--) {
1565                     mod.iter_nth_child(out citer, iter, i);
1566
1567
1568                     print("removing node from Tree\n");
1569
1570                     _this.model.el.remove(ref citer);
1571                 }
1572                 _this.changed();
1573                 _this.node_selected(node, "tree");
1574
1575
1576             });
1577         }
1578
1579         // user defined functions
1580     }
1581
1582
1583 }