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

   1 static Xcls_ClutterFiles  _ClutterFiles;
   2
   3 public class Xcls_ClutterFiles : Object
   4 {
   5     public Clutter.Actor el;
   6     private Xcls_ClutterFiles  _this;
   7
   8     public static Xcls_ClutterFiles singleton()
   9     {
  10         if (_ClutterFiles == null) {
  11             _ClutterFiles= new Xcls_ClutterFiles();
  12         }
  13         return _ClutterFiles;
  14     }
  15     public Xcls_project_title project_title;
  16     public Xcls_project_title_manager project_title_manager;
  17     public Xcls_project_title_name project_title_name;
  18     public Xcls_project_title_path project_title_path;
  19     public Xcls_scroller scroller;
  20     public Xcls_filelayout filelayout;
  21     public Xcls_filelayout_manager filelayout_manager;
  22
  23         // my vars (def)
  24     public Clutter.ScrollMode scroll_mode;
  25     public Gdk.Pixbuf missing_thumb_pixbuf;
  26     public signal void open (JsRender.JsRender file);
  27     public Project.Project project;
  28     public Gee.ArrayList<Object> fileitems;
  29
  30     // ctor
  31     public Xcls_ClutterFiles()
  32     {
  33         _this = this;
  34         this.el = new Clutter.Actor();
  35
  36         // my vars (dec)
  37         this.scroll_mode = Clutter.ScrollMode.VERTICALLY;
  38         this.missing_thumb_pixbuf = null;
  39         this.fileitems = new Gee.ArrayList<Object>();
  40
  41         // set gobject values
  42         this.el.reactive = true;
  43         var child_0 = new Xcls_project_title( _this );
  44         child_0.ref();
  45         this.el.add_child (  child_0.el  );
  46         var child_1 = new Xcls_scroller( _this );
  47         child_1.ref();
  48         this.el.add_child (  child_1.el  );
  49     }
  50
  51     // user defined functions
  52     public  void clearFiles () {
  53
  54         this.filelayout.el.remove_all_children();
  55         // we need to unref all the chidren that we loaded though...
  56
  57     }
  58     public  void loadProject (Project.Project pr) {
  59         // list all the files, and create new Xcls_fileitem for each one.
  60
  61         this.project = pr;
  62
  63
  64         // LEAK --- we should unref all the chilren...
  65         this.filelayout.el.y = 0;
  66         this.clearFiles();
  67
  68         print("clutter files - load project: " + pr.name +"\n");
  69         // should unref.. them hopefully.
  70
  71         this.project_title_name.el.text = pr.name;
  72         this.project_title_path.el.text = pr.firstPath();
  73
  74         // file items contains a reference until we reload ...
  75         this.fileitems = new Gee.ArrayList<Object>();
  76
  77
  78
  79         var fiter = pr.sortedFiles().list_iterator();
  80         while (fiter.next()) {
  81             var a = new Xcls_fileitem(this,fiter.get());
  82             this.fileitems.add(a);
  83
  84     //        a.ref();
  85             print("add to clutter file view: " + fiter.get().name + "\n");
  86             this.filelayout.el.add_child(a.el);
  87         }
  88
  89         // folders...
  90
  91         if (!(pr is Project.Gtk)) {
  92             print ("not gtk... skipping files");
  93             return;
  94         }
  95         var gpr = (Project.Gtk)pr;
  96          var def = gpr.compilegroups.get("_default_");
  97          var items  = def.sources;
  98
  99
 100
 101         for(var i =0 ; i < items.size; i++) {
 102             print ("cheking folder %s\n", items.get(i));
 103              var files = gpr.filesForOpen(items.get(i));
 104              if (files.size < 1) {
 105                 continue;
 106              }
 107
 108             // add the directory... items.get(i);
 109             var x = new Xcls_folderitem(this,items.get(i));
 110             this.fileitems.add(x);
 111             this.filelayout.el.add_child(x.el);
 112
 113             for(var j =0 ; j < files.size; j++) {
 114                 print ("adding file %s\n", files.get(j));
 115
 116                 var y = new Xcls_folderfile(this, files.get(j));
 117                 this.fileitems.add(y);
 118                 x.el.add_child(y.el);
 119
 120                 // add file to files.get(j);
 121
 122             }
 123
 124
 125             //this.el.set_value(citer, 1,   items.get(i) );
 126         }
 127
 128
 129
 130         this.el.show();
 131     }
 132     public  void set_size (float w, float h)
 133     {
 134
 135          // called by window resize... with is alreaddy -50 (for the buttons?)
 136
 137
 138
 139
 140          if (this.el == null) {
 141             print("object not ready yet?");
 142             return;
 143         }
 144
 145         print("recv width %f, filelayoutw = %f", w, w-200);
 146
 147         w = GLib.Math.floorf ( w/120.0f) * 120.0f;
 148
 149
 150
 151
 152        //_this.filelayout_manager.el.max_column_width = w - 200;
 153        _this.filelayout.el.width = w ;
 154
 155         this.el.set_size(
 156                // this.el.get_stage().width-150,
 157                w,
 158                h  // this.el.get_stage().height
 159         );
 160
 161         // 100 right for buttons ..
 162         this.el.set_position(75,0);
 163
 164
 165        this.scroller.el.set_size(
 166                // this.el.get_stage().width-150,
 167                w,
 168                h  // this.el.get_stage().height
 169         );
 170
 171         // 100 right for buttons ..
 172         this.scroller.el.set_position(0,50);
 173         // scroll...
 174         _this.filelayout.el.y = 0.0f;
 175
 176     }
 177     public class Xcls_project_title : Object
 178     {
 179         public Clutter.Actor el;
 180         private Xcls_ClutterFiles  _this;
 181
 182
 183             // my vars (def)
 184
 185         // ctor
 186         public Xcls_project_title(Xcls_ClutterFiles _owner )
 187         {
 188             _this = _owner;
 189             _this.project_title = this;
 190             this.el = new Clutter.Actor();
 191
 192             // my vars (dec)
 193
 194             // set gobject values
 195             this.el.reactive = true;
 196             var child_0 = new Xcls_project_title_manager( _this );
 197             child_0.ref();
 198             this.el.layout_manager = child_0.el;
 199             var child_1 = new Xcls_FixedLayout4( _this );
 200             child_1.ref();
 201             this.el.layout_manager = child_1.el;
 202             var child_2 = new Xcls_project_title_name( _this );
 203             child_2.ref();
 204             this.el.add_child (  child_2.el  );
 205             var child_3 = new Xcls_project_title_path( _this );
 206             child_3.ref();
 207             this.el.add_child (  child_3.el  );
 208
 209             // init method
 210
 211             this.el.add_constraint(
 212                 new Clutter.BindConstraint(_this.el,Clutter.BindCoordinate.SIZE, 0.0f)
 213             );
 214             this.el.set_position(0,0);
 215         }
 216
 217         // user defined functions
 218     }
 219     public class Xcls_project_title_manager : Object
 220     {
 221         public Clutter.FlowLayout el;
 222         private Xcls_ClutterFiles  _this;
 223
 224
 225             // my vars (def)
 226
 227         // ctor
 228         public Xcls_project_title_manager(Xcls_ClutterFiles _owner )
 229         {
 230             _this = _owner;
 231             _this.project_title_manager = this;
 232             this.el = new Clutter.FlowLayout( Clutter.FlowOrientation.HORIZONTAL );
 233
 234             // my vars (dec)
 235
 236             // set gobject values
 237             this.el.homogeneous = false;
 238             this.el.row_spacing = 5f;
 239             this.el.column_spacing = 20f;
 240         }
 241
 242         // user defined functions
 243     }
 244
 245     public class Xcls_FixedLayout4 : Object
 246     {
 247         public Clutter.FixedLayout el;
 248         private Xcls_ClutterFiles  _this;
 249
 250
 251             // my vars (def)
 252
 253         // ctor
 254         public Xcls_FixedLayout4(Xcls_ClutterFiles _owner )
 255         {
 256             _this = _owner;
 257             this.el = new Clutter.FixedLayout();
 258
 259             // my vars (dec)
 260
 261             // set gobject values
 262         }
 263
 264         // user defined functions
 265     }
 266
 267     public class Xcls_project_title_name : Object
 268     {
 269         public Clutter.Text el;
 270         private Xcls_ClutterFiles  _this;
 271
 272
 273             // my vars (def)
 274
 275         // ctor
 276         public Xcls_project_title_name(Xcls_ClutterFiles _owner )
 277         {
 278             _this = _owner;
 279             _this.project_title_name = this;
 280             this.el = new Clutter.Text.full("Sans 20px", "",  Clutter.Color.from_string("#eee"));
 281
 282             // my vars (dec)
 283
 284             // set gobject values
 285             this.el.x = 0.0f;
 286             this.el.y = 10.0f;
 287             this.el.x_expand = false;
 288         }
 289
 290         // user defined functions
 291     }
 292
 293     public class Xcls_project_title_path : Object
 294     {
 295         public Clutter.Text el;
 296         private Xcls_ClutterFiles  _this;
 297
 298
 299             // my vars (def)
 300
 301         // ctor
 302         public Xcls_project_title_path(Xcls_ClutterFiles _owner )
 303         {
 304             _this = _owner;
 305             _this.project_title_path = this;
 306             this.el = new Clutter.Text.full("Sans 10px", "",  Clutter.Color.from_string("#ccc"));
 307
 308             // my vars (dec)
 309
 310             // set gobject values
 311             this.el.x = 0.0f;
 312             this.el.y = 35.0f;
 313         }
 314
 315         // user defined functions
 316     }
 317
 318
 319     public class Xcls_scroller : Object
 320     {
 321         public Clutter.ScrollActor el;
 322         private Xcls_ClutterFiles  _this;
 323
 324
 325             // my vars (def)
 326         public Gee.ArrayList<Xcls_fileitem> fileitems;
 327         public Gdk.Pixbuf missing_thumb_pixbuf;
 328
 329         // ctor
 330         public Xcls_scroller(Xcls_ClutterFiles _owner )
 331         {
 332             _this = _owner;
 333             _this.scroller = this;
 334             this.el = new Clutter.ScrollActor();
 335
 336             // my vars (dec)
 337             this.fileitems = new Gee.ArrayList<Xcls_fileitem>();
 338             this.missing_thumb_pixbuf = null;
 339
 340             // set gobject values
 341             this.el.scroll_mode = Clutter.ScrollMode.VERTICALLY;
 342             this.el.reactive = true;
 343             var child_0 = new Xcls_filelayout( _this );
 344             child_0.ref();
 345             this.el.add_child (  child_0.el  );
 346
 347             //listeners
 348             this.el.scroll_event.connect( ( event) => {
 349                 print("scroll event\n");
 350                 var y = _this.filelayout.el.y;
 351                 var dir = event.direction;
 352
 353                 var last_child_bottom = _this.filelayout.el.last_child.y +  _this.filelayout.el.last_child.height;
 354                 var bottompos = -1 * (  last_child_bottom - (0.5f * this.el.height));
 355
 356                 switch (dir) {
 357                     case Clutter.ScrollDirection.UP:
 358                         print("Scroll up by %f\n", event.y);
 359                         y += event.y /2;
 360                         y = float.min(0, y); //
 361                         break;
 362
 363                     case Clutter.ScrollDirection.DOWN:
 364                         print("Scroll down by %f\n", event.y);
 365                         y -= event.y /2 ;
 366                         y = float.max(bottompos, y);
 367
 368
 369                         break;
 370                           case Clutter.ScrollDirection.SMOOTH:
 371                             double delta_x, delta_y;
 372                             event.get_scroll_delta(out delta_x, out delta_y);
 373                         //print("Scroll SMOOTH? by %f\n",  delta_y * event.y);
 374                         y += (delta_y * event.y) /2 ;
 375                         y = float.max(bottompos, y);
 376
 377                         break;
 378                     default:
 379                         print("scroll event = bad direction %s\n", dir.to_string());
 380                         return false;
 381                 }
 382                 // range of scroll -- can go up -- eg.. -ve value.
 383
 384
 385
 386                print("Set scroll to %f (lcb=%f / height = %f)\n", y, last_child_bottom, this.el.height);
 387
 388                 _this.filelayout.el.y = y;
 389                 return true;
 390
 391             });
 392         }
 393
 394         // user defined functions
 395     }
 396     public class Xcls_filelayout : Object
 397     {
 398         public Clutter.Actor el;
 399         private Xcls_ClutterFiles  _this;
 400
 401
 402             // my vars (def)
 403
 404         // ctor
 405         public Xcls_filelayout(Xcls_ClutterFiles _owner )
 406         {
 407             _this = _owner;
 408             _this.filelayout = this;
 409             this.el = new Clutter.Actor();
 410
 411             // my vars (dec)
 412
 413             // set gobject values
 414             this.el.reactive = true;
 415             var child_0 = new Xcls_filelayout_manager( _this );
 416             child_0.ref();
 417             this.el.layout_manager = child_0.el;
 418
 419             // init method
 420
 421             this.el.add_constraint(
 422                 new Clutter.BindConstraint(_this.el,Clutter.BindCoordinate.SIZE, 0.0f)
 423             );
 424         }
 425
 426         // user defined functions
 427     }
 428     public class Xcls_filelayout_manager : Object
 429     {
 430         public Clutter.FlowLayout el;
 431         private Xcls_ClutterFiles  _this;
 432
 433
 434             // my vars (def)
 435
 436         // ctor
 437         public Xcls_filelayout_manager(Xcls_ClutterFiles _owner )
 438         {
 439             _this = _owner;
 440             _this.filelayout_manager = this;
 441             this.el = new Clutter.FlowLayout( Clutter.FlowOrientation.HORIZONTAL );
 442
 443             // my vars (dec)
 444
 445             // set gobject values
 446             this.el.homogeneous = false;
 447             this.el.max_column_width = 100.0f;
 448             this.el.row_spacing = 20f;
 449             this.el.column_spacing = 20f;
 450         }
 451
 452         // user defined functions
 453     }
 454
 455     public class Xcls_fileitem : Object
 456     {
 457         public Clutter.Actor el;
 458         private Xcls_ClutterFiles  _this;
 459
 460
 461             // my vars (def)
 462         public JsRender.JsRender file;
 463         public Xcls_image image;
 464         public Xcls_typetitle typetitle;
 465         public Xcls_title title;
 466
 467         // ctor
 468         public Xcls_fileitem(Xcls_ClutterFiles _owner , JsRender.JsRender file)
 469         {
 470             _this = _owner;
 471             this.el = new Clutter.Actor();
 472
 473             // my vars (dec)
 474
 475             // set gobject values
 476             this.el.reactive = true;
 477             var child_0 = new Xcls_BoxLayout11( _this );
 478             child_0.ref();
 479             this.el.layout_manager = child_0.el;
 480             var child_1 = new Xcls_image( _this ,file);
 481             child_1.ref();
 482             this.el.add_child (  child_1.el  );
 483             this.image =  child_1;
 484             var child_2 = new Xcls_typetitle( _this ,file);
 485             child_2.ref();
 486             this.el.add_child (  child_2.el  );
 487             this.typetitle =  child_2;
 488             var child_3 = new Xcls_title( _this ,file);
 489             child_3.ref();
 490             this.el.add_child (  child_3.el  );
 491             this.title =  child_3;
 492
 493             // init method
 494
 495             this.file = file;
 496             this.el.set_size(100,100);
 497
 498             //listeners
 499             this.el.button_press_event.connect( (  event) => {
 500                 _this.open(this.file);
 501                 return false;
 502             });
 503             this.el.enter_event.connect( (  event)  => {
 504                 this.el.background_color =   Clutter.Color.from_string("#333");
 505                 this.title.el.background_color =   Clutter.Color.from_string("#fff");
 506                 this.typetitle.el.background_color =   Clutter.Color.from_string("#fff");
 507                 this.title.el.color =   Clutter.Color.from_string("#000");
 508                 this.typetitle.el.color =   Clutter.Color.from_string("#000");
 509
 510                     return false;
 511             });
 512             this.el.leave_event.connect( (  event)  => {
 513                 this.el.background_color =   Clutter.Color.from_string("#000");
 514                  this.title.el.background_color =   Clutter.Color.from_string("#000");
 515                 this.typetitle.el.background_color =   Clutter.Color.from_string("#000");
 516                 this.title.el.color =   Clutter.Color.from_string("#fff");
 517                 this.typetitle.el.color =   Clutter.Color.from_string("#fff");
 518
 519
 520                 return false;
 521             });
 522         }
 523
 524         // user defined functions
 525     }
 526     public class Xcls_BoxLayout11 : Object
 527     {
 528         public Clutter.BoxLayout el;
 529         private Xcls_ClutterFiles  _this;
 530
 531
 532             // my vars (def)
 533
 534         // ctor
 535         public Xcls_BoxLayout11(Xcls_ClutterFiles _owner )
 536         {
 537             _this = _owner;
 538             this.el = new Clutter.BoxLayout();
 539
 540             // my vars (dec)
 541
 542             // set gobject values
 543             this.el.spacing = 4;
 544             this.el.orientation = Clutter.Orientation.VERTICAL;
 545         }
 546
 547         // user defined functions
 548     }
 549
 550     public class Xcls_image : Object
 551     {
 552         public Clutter.Actor el;
 553         private Xcls_ClutterFiles  _this;
 554
 555
 556             // my vars (def)
 557
 558         // ctor
 559         public Xcls_image(Xcls_ClutterFiles _owner , JsRender.JsRender file)
 560         {
 561             _this = _owner;
 562             this.el = new Clutter.Actor();
 563
 564             // my vars (dec)
 565
 566             // set gobject values
 567             this.el.margin_right = 5f;
 568             this.el.margin_left = 5f;
 569             this.el.x_align = Clutter.ActorAlign.START;
 570             this.el.x_expand = false;
 571             this.el.y_align = Clutter.ActorAlign.START;
 572             this.el.margin_top = 5f;
 573             this.el.y_expand = false;
 574
 575             // init method
 576
 577             {
 578                 Gdk.Pixbuf pixbuf= null;
 579
 580                 var fname = file.getIconFileName(false);
 581
 582                 try {
 583                     if (FileUtils.test(fname, FileTest.EXISTS)) {
 584                         pixbuf = new Gdk.Pixbuf.from_file(fname);
 585                     }
 586                 } catch (Error e) {
 587                     // noop
 588
 589                 }
 590                 if (pixbuf == null) {
 591
 592                     try {
 593                         if (_this.missing_thumb_pixbuf == null) {
 594                                 var icon_theme = Gtk.IconTheme.get_default ();
 595                                 _this.missing_thumb_pixbuf = icon_theme.load_icon ("package-x-generic", 92, 0);
 596                                 _this.missing_thumb_pixbuf.ref();
 597                             }
 598                             pixbuf = _this.missing_thumb_pixbuf;
 599
 600                     } catch (Error e) {
 601                         // noop?
 602                     }
 603                 }
 604                 try {
 605                     var img = new Clutter.Image();
 606                     img.set_data(pixbuf.get_pixels(),
 607                                         pixbuf.has_alpha
 608                                           ? Cogl.PixelFormat.RGBA_8888
 609                                           : Cogl.PixelFormat.RGB_888,
 610                                         pixbuf.get_width (),
 611                             pixbuf.get_height (),
 612                                         pixbuf.get_rowstride ()
 613                     );
 614                     this.el.set_content(img);
 615                 } catch (Error e) {
 616                     // noop?
 617                 }
 618                  // should probably do smarter scaling...
 619
 620
 621                 this.el.set_size(90, 70);
 622             }
 623         }
 624
 625         // user defined functions
 626     }
 627
 628     public class Xcls_typetitle : Object
 629     {
 630         public Clutter.Text el;
 631         private Xcls_ClutterFiles  _this;
 632
 633
 634             // my vars (def)
 635
 636         // ctor
 637         public Xcls_typetitle(Xcls_ClutterFiles _owner , JsRender.JsRender file)
 638         {
 639             _this = _owner;
 640             this.el = new Clutter.Text.full("Sans 10px", file.nickType(),  Clutter.Color.from_string("#fff"));
 641
 642             // my vars (dec)
 643
 644             // set gobject values
 645             this.el.x_align = Clutter.ActorAlign.START;
 646             this.el.x_expand = false;
 647             this.el.y_align = Clutter.ActorAlign.START;
 648             this.el.y_expand = false;
 649         }
 650
 651         // user defined functions
 652     }
 653
 654     public class Xcls_title : Object
 655     {
 656         public Clutter.Text el;
 657         private Xcls_ClutterFiles  _this;
 658
 659
 660             // my vars (def)
 661
 662         // ctor
 663         public Xcls_title(Xcls_ClutterFiles _owner , JsRender.JsRender file)
 664         {
 665             _this = _owner;
 666             this.el = new Clutter.Text.full("Sans 10px", file.nickName(),  Clutter.Color.from_string("#fff"));
 667
 668             // my vars (dec)
 669
 670             // set gobject values
 671             this.el.x_align = Clutter.ActorAlign.START;
 672             this.el.x_expand = false;
 673             this.el.y_align = Clutter.ActorAlign.START;
 674             this.el.y_expand = false;
 675         }
 676
 677         // user defined functions
 678     }
 679
 680
 681     public class Xcls_folderitem : Object
 682     {
 683         public Clutter.Actor el;
 684         private Xcls_ClutterFiles  _this;
 685
 686
 687             // my vars (def)
 688         public Xcls_foldertitle foldertitle;
 689
 690         // ctor
 691         public Xcls_folderitem(Xcls_ClutterFiles _owner , string folderpath)
 692         {
 693             _this = _owner;
 694             this.el = new Clutter.Actor();
 695
 696             // my vars (dec)
 697
 698             // set gobject values
 699             this.el.reactive = true;
 700             var child_0 = new Xcls_BoxLayout16( _this );
 701             child_0.ref();
 702             this.el.layout_manager = child_0.el;
 703             var child_1 = new Xcls_foldertitle( _this ,folderpath);
 704             child_1.ref();
 705             this.el.add_child (  child_1.el  );
 706             this.foldertitle =  child_1;
 707
 708             // init method
 709
 710             //this.el.set_size(100,100);
 711         }
 712
 713         // user defined functions
 714     }
 715     public class Xcls_BoxLayout16 : Object
 716     {
 717         public Clutter.BoxLayout el;
 718         private Xcls_ClutterFiles  _this;
 719
 720
 721             // my vars (def)
 722
 723         // ctor
 724         public Xcls_BoxLayout16(Xcls_ClutterFiles _owner )
 725         {
 726             _this = _owner;
 727             this.el = new Clutter.BoxLayout();
 728
 729             // my vars (dec)
 730
 731             // set gobject values
 732             this.el.spacing = 2;
 733             this.el.orientation = Clutter.Orientation.VERTICAL;
 734         }
 735
 736         // user defined functions
 737     }
 738
 739     public class Xcls_foldertitle : Object
 740     {
 741         public Clutter.Text el;
 742         private Xcls_ClutterFiles  _this;
 743
 744
 745             // my vars (def)
 746
 747         // ctor
 748         public Xcls_foldertitle(Xcls_ClutterFiles _owner , string folderpath)
 749         {
 750             _this = _owner;
 751             this.el = new Clutter.Text.full("Sans bold 14px", GLib.Path.get_basename(folderpath),  Clutter.Color.from_string("#fff"));
 752
 753             // my vars (dec)
 754
 755             // set gobject values
 756             this.el.x_align = Clutter.ActorAlign.START;
 757             this.el.x_expand = true;
 758             this.el.y_align = Clutter.ActorAlign.START;
 759             this.el.y_expand = false;
 760         }
 761
 762         // user defined functions
 763     }
 764
 765     public class Xcls_folderfile : Object
 766     {
 767         public Clutter.Text el;
 768         private Xcls_ClutterFiles  _this;
 769
 770
 771             // my vars (def)
 772         public string filepath;
 773
 774         // ctor
 775         public Xcls_folderfile(Xcls_ClutterFiles _owner , string filepath)
 776         {
 777             _this = _owner;
 778             this.el = new Clutter.Text.full("Sans 10px", GLib.Path.get_basename(filepath),  Clutter.Color.from_string("#fff"));
 779
 780             // my vars (dec)
 781
 782             // set gobject values
 783             this.el.x_align = Clutter.ActorAlign.START;
 784             this.el.x_expand = true;
 785             this.el.y_align = Clutter.ActorAlign.START;
 786             this.el.reactive = true;
 787             this.el.y_expand = true;
 788
 789             // init method
 790
 791             {
 792                 this.filepath = filepath;
 793             }
 794
 795             //listeners
 796             this.el.button_press_event.connect( (  event) => {
 797
 798                var f = JsRender.JsRender.factory("PlainFile", _this.project, this.filepath);
 799                 _this.open(f);
 800                 return false;
 801             });
 802             this.el.enter_event.connect( (  event)  => {
 803                 this.el.background_color =   Clutter.Color.from_string("#fff");
 804                 this.el.color =  Clutter.Color.from_string("#000");
 805                     return false;
 806             });
 807             this.el.leave_event.connect( (  event)  => {
 808                 this.el.background_color =   Clutter.Color.from_string("#000");
 809                  this.el.color =   Clutter.Color.from_string("#fff");
 810                 return false;
 811             });
 812         }
 813
 814         // user defined functions
 815     }
 816
 817
 818
 819
 820 }