lib/gtk3_4/gtk_core.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2011-2013 Alexis Laferrière <alexis.laf@xymus.net>
   4 # Copyright 2013 Nathan Heu <heu.nathan@courrier.uqam.ca>
   5 #
   6 # Licensed under the Apache License, Version 2.0 (the "License");
   7 # you may not use this file except in compliance with the License.
   8 # You may obtain a copy of the License at
   9 #
  10 #     http://www.apache.org/licenses/LICENSE-2.0
  11 #
  12 # Unless required by applicable law or agreed to in writing, software
  13 # distributed under the License is distributed on an "AS IS" BASIS,
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 # See the License for the specific language governing permissions and
  16 # limitations under the License.
  17
  18 # Classes and services to use libGTK widgets
  19 module gtk_core
  20 import gtk_enums
  21 import gdk_enums
  22
  23 in "C Header" `{
  24         #include <gtk/gtk.h>
  25 `}
  26
  27 `{
  28                 /* callback user data */
  29                 typedef struct {
  30                         GtkCallable to_call;
  31                         nullable_Object user_data;
  32                 } NitGtkSignal;
  33
  34                 void nit_gtk_callback_func( GtkWidget *widget,
  35                                                         gpointer   callback_data ) {
  36                         NitGtkSignal *data;
  37                         data = (NitGtkSignal*)callback_data;
  38                         GtkCallable_signal( data->to_call, widget, data->user_data );
  39                 }
  40 `}
  41
  42 redef interface Object
  43         protected fun init_gtk `{ gtk_init( 0, NULL ); `}
  44         protected fun run_gtk `{ gtk_main(); `}
  45         protected fun quit_gtk `{ gtk_main_quit(); `}
  46 end
  47
  48 interface GtkCallable
  49         # return true to stop event processing, false to let it propagate
  50         fun signal( sender : GtkWidget, user_data : nullable Object ) is abstract
  51 end
  52
  53 extern GdkEvent `{GdkEvent *`}
  54 end
  55
  56
  57 #Base class for all widgets
  58 #@https://developer.gnome.org/gtk3/stable/GtkWidget.html
  59 extern GtkWidget `{GtkWidget *`}
  60         fun show_all is extern `{ gtk_widget_show_all( recv ); `}
  61
  62         fun signal_connect( signal_name : String, to_call : GtkCallable, user_data : nullable Object ) is extern import String::to_cstring, GtkCallable::signal, Object as not nullable `{
  63                 NitGtkSignal *data = malloc( sizeof(NitGtkSignal) );
  64
  65                 GtkCallable_incr_ref( to_call );
  66                 Object_incr_ref( user_data );
  67
  68                 data->to_call = to_call;
  69                 data->user_data = user_data;
  70
  71                 /*Use G_CALLBACK() to cast the callback function to a GCallback*/
  72                 g_signal_connect( recv,
  73                                                         String_to_cstring( signal_name ),
  74                                                         G_CALLBACK(nit_gtk_callback_func),
  75                                                         data );
  76         `}
  77
  78         redef fun == ( o ) do return o isa GtkWidget and equal_to_gtk_widget( o )
  79
  80         private fun equal_to_gtk_widget( o : GtkWidget ) : Bool `{
  81                 return recv == o;
  82         `}
  83
  84         fun request_size( width, height : Int ) `{
  85                 gtk_widget_set_size_request( recv, width, height );
  86         `}
  87
  88         fun bg_color=( state : GtkStateType, color : GdkRGBA ) is extern `{
  89                 gtk_widget_override_background_color( recv, state, color);
  90         `}
  91
  92         #with gtk it's possible to set fg_color to all widget : is it correct? is fg color inherited?
  93         #GdkColor color;
  94         fun fg_color=( state : GtkStateType, color : GdkRGBA ) is extern `{
  95                 gtk_widget_override_color( recv, state, color);
  96         `}
  97 end
  98
  99 #Base class for widgets which contain other widgets
 100 #@https://developer.gnome.org/gtk3/stable/GtkContainer.html
 101 extern GtkContainer `{GtkContainer *`}
 102         super GtkWidget
 103
 104         fun add( widget : GtkWidget ) is extern `{
 105                 gtk_container_add( recv, widget );
 106         `}
 107 end
 108
 109 #A container with just one child
 110 #@https://developer.gnome.org/gtk3/stable/GtkBin.html
 111 extern GtkBin `{GtkBin *`}
 112         super GtkContainer
 113
 114         fun child : GtkWidget is extern `{
 115                 return gtk_bin_get_child( recv );
 116         `}
 117 end
 118
 119 #Toplevel which can contain other widgets
 120 #@https://developer.gnome.org/gtk3/stable/GtkWindow.html
 121 extern GtkWindow `{GtkWindow *`}
 122         super GtkBin
 123
 124         new ( flag : Int ) is extern `{
 125                 GtkWindow *win;
 126
 127                 win = GTK_WINDOW(gtk_window_new( flag ));
 128                 g_signal_connect(win, "destroy", G_CALLBACK(gtk_main_quit), NULL);
 129                 return win;
 130         `}
 131
 132         fun title=( title : String ) is extern import String::to_cstring `{
 133                 gtk_window_set_title( recv, String_to_cstring( title ) );
 134         `}
 135
 136         #The "destroy" signal is emitted when a widget is destroyed, either by explicitly calling gtk_widget_destroy() or when the widget is unparented. Top-level GtkWindows are also destroyed when the Close window control button is clicked.
 137         fun on_close( to_call : GtkCallable, user_data : nullable Object )
 138         do
 139                 signal_connect( "destroy", to_call, user_data )
 140         end
 141
 142         fun resizable : Bool is extern `{
 143                 return gtk_window_get_resizable( recv );
 144         `}
 145
 146         fun resizable=( is_resizable : Bool) is extern `{
 147                 return gtk_window_set_resizable( recv, is_resizable );
 148         `}
 149
 150         #Activates the current focused widget within the window.
 151         #returns TRUE if a widget got activated.
 152         fun activate_focus : Bool is extern `{
 153                 return gtk_window_activate_focus( recv );
 154         `}
 155
 156         #Sets a window modal or non-modal. Modal windows prevent interaction with other windows in the same application.
 157         fun modal=( is_modal : Bool ) is extern `{
 158                 gtk_window_set_modal( recv, is_modal );
 159         `}
 160
 161         #Windows can't actually be 0x0 in size, they must be at least 1x1
 162         #but passing 0 for width and height is OK, resulting in a 1x1 default size.
 163         #params width in pixels, or -1 to unset the default width
 164         #params height in pixels, or -1 to unset the default height
 165         fun default_size( width : Int, height : Int ) is extern `{
 166                 gtk_window_set_default_size( recv, width, height );
 167         `}
 168
 169         #Activates the default widget for the window
 170         #unless the current focused widget has been configured to receive the default action (see gtk_widget_set_receives_default()), in which case the focused widget is activated.
 171         fun activate_default : Bool is extern `{
 172                 return gtk_window_activate_default( recv );
 173         `}
 174
 175         fun gravity : GdkGravity is extern `{
 176                 return gtk_window_get_gravity( recv );
 177         `}
 178
 179         fun gravity=( window_grav : GdkGravity ) is extern `{
 180                 gtk_window_set_gravity( recv, window_grav );
 181         `}
 182
 183 #       fun position : GtkWindowPosition is extern `{
 184 #               return gtk_window_get_position( recv );
 185 #       `}
 186 #
 187 #       fun position=( window_pos : GtkWindowPosition ) is extern `{
 188 #               gtk_window_set_position( recv, window_pos );
 189 #       `}
 190
 191         fun active : Bool is extern `{
 192                 return gtk_window_is_active( recv );
 193         `}
 194
 195         #Returns whether the input focus is within this GtkWindow. For real toplevel windows, this is identical to gtk_window_is_active(), but for embedded windows, like GtkPlug, the results will differ.
 196         fun has_toplevel_focus : Bool is extern `{
 197                 return gtk_window_has_toplevel_focus( recv );
 198         `}
 199
 200         fun get_focus : GtkWidget is extern `{
 201                 return gtk_window_get_focus( recv );
 202         `}
 203
 204         fun set_focus( widget : GtkWidget ) is extern `{
 205                 return gtk_window_set_focus( recv, widget );
 206         `}
 207
 208         fun get_default_widget : GtkWidget is extern `{
 209                 return gtk_window_get_default_widget( recv );
 210         `}
 211
 212         fun set_default_widget( widget : GtkWidget ) is extern `{
 213                 return gtk_window_set_default( recv, widget );
 214         `}
 215
 216         fun maximize is extern `{
 217                 return gtk_window_maximize( recv );
 218         `}
 219
 220         fun unmaximize is extern `{
 221                 return gtk_window_unmaximize( recv );
 222         `}
 223
 224         fun fullscreen is extern `{
 225                 return gtk_window_fullscreen( recv );
 226         `}
 227
 228         fun unfullscreen is extern `{
 229                 return gtk_window_unfullscreen( recv );
 230         `}
 231
 232         fun keep_above=( setting : Bool ) is extern `{
 233                 gtk_window_set_keep_above( recv, setting );
 234         `}
 235
 236         fun keep_below=( setting : Bool ) is extern `{
 237                 gtk_window_set_keep_below( recv, setting );
 238         `}
 239 end
 240
 241 #A bin with a decorative frame and optional label
 242 #https://developer.gnome.org/gtk3/stable/GtkFrame.html
 243 extern GtkFrame `{GtkFrame *`}
 244         super GtkBin
 245
 246         new ( lbl : String ) is extern import String::to_cstring`{
 247                 return (GtkFrame *)gtk_frame_new( String_to_cstring( lbl ) );
 248         `}
 249
 250         fun frame_label : String is extern`{
 251                 return new_String_from_cstring( (char *)gtk_frame_get_label( recv ) );
 252         `}
 253
 254         fun frame_label=( lbl : String ) is extern import String::to_cstring`{
 255                 gtk_frame_set_label( recv, String_to_cstring( lbl ) );
 256         `}
 257
 258         fun label_widget : GtkWidget is extern `{
 259                 return gtk_frame_get_label_widget( recv );
 260         `}
 261
 262         fun label_widget=( widget : GtkWidget ) is extern `{
 263                 gtk_frame_set_label_widget( recv, widget );
 264         `}
 265
 266         fun shadow_type : GtkShadowType is extern `{
 267                 return gtk_frame_get_shadow_type( recv );
 268         `}
 269
 270         fun shadow_type=( stype : GtkShadowType ) is extern `{
 271                 gtk_frame_set_shadow_type( recv, stype );
 272         `}
 273
 274         #fun label_align : GtkShadowType is extern `{
 275         #`}
 276
 277         fun label_align=( xalign : Float, yalign : Float ) is extern `{
 278                 gtk_frame_set_label_align( recv, xalign, yalign );
 279         `}
 280 end
 281
 282 #Pack widgets in a rows and columns
 283 #@https://developer.gnome.org/gtk3/3.3/GtkGrid.html
 284 extern GtkGrid `{GtkGrid *`}
 285         super GtkContainer
 286
 287         # Create a grid with a fixed number of rows and columns
 288         new ( rows : Int, columns : Int, homogeneous : Bool ) `{
 289                 return (GtkGrid*)gtk_grid_new(); // rows, columns, homogeneous );
 290         `}
 291
 292         # Set a widget child inside the grid at a given position
 293         fun attach( child : GtkWidget, left, top, width, height : Int ) `{
 294                 gtk_grid_attach( recv, child, left, top, width, height );
 295         `}
 296 end
 297
 298 #The tree interface used by GtkTreeView
 299 #@https://developer.gnome.org/gtk3/stable/GtkTreeModel.html
 300 extern GtkTreeModel `{GtkTreeModel *`}
 301 end
 302
 303 #An abstract class for laying out GtkCellRenderers
 304 #@https://developer.gnome.org/gtk3/stable/GtkCellArea.html
 305 extern GtkCellArea `{GtkCellArea *`}
 306 end
 307
 308 #Base class for widgets with alignments and padding
 309 #@https://developer.gnome.org/gtk3/3.2/GtkMisc.html
 310 extern GtkMisc `{GtkMisc *`}
 311         super GtkWidget
 312
 313         fun alignment : GtkAlignment is abstract
 314
 315         fun alignment=( x : Float, y : Float ) is extern `{
 316                 gtk_misc_set_alignment( recv, x, y );
 317         `}
 318
 319         fun padding : GtkAlignment is abstract
 320
 321         fun padding=( x : Float, y : Float ) is extern `{
 322                 gtk_misc_set_padding( recv, x, y );
 323         `}
 324
 325 end
 326
 327 #A single line text entry field
 328 #@https://developer.gnome.org/gtk3/3.2/GtkEntry.html
 329 extern GtkEntry `{GtkEntry *`}
 330         super GtkWidget
 331
 332         new is extern `{
 333                  return (GtkEntry *)gtk_entry_new();
 334         `}
 335
 336         fun text : String is extern import String::to_cstring`{
 337                 return new_String_from_cstring( (char *)gtk_entry_get_text( recv ) );
 338         `}
 339
 340         fun text=( value : String) is extern import String::to_cstring`{
 341                 gtk_entry_set_text( recv, String_to_cstring( value ) );
 342         `}
 343
 344         fun visible : Bool is extern `{
 345                 return gtk_entry_get_visibility( recv );
 346         `}
 347
 348         fun visible=( is_visible : Bool) is extern `{
 349                 gtk_entry_set_visibility( recv, is_visible );
 350         `}
 351
 352         fun max_length : Int is extern `{
 353                 return gtk_entry_get_max_length( recv );
 354         `}
 355
 356         fun max_length=( max : Int) is extern `{
 357                 gtk_entry_set_max_length( recv, max );
 358         `}
 359 end
 360
 361 #Base class for widgets which visualize an adjustment
 362 #@https://developer.gnome.org/gtk3/3.2/GtkRange.html
 363 extern GtkRange `{GtkRange *`}
 364         super GtkWidget
 365
 366         #Gets the current position of the fill level indicator.
 367         fun fill_level : Float is extern `{
 368                 return gtk_range_get_fill_level( recv );
 369         `}
 370
 371         fun fill_level=( level : Float ) is extern `{
 372                 gtk_range_set_fill_level( recv, level );
 373         `}
 374
 375         #Gets whether the range is restricted to the fill level.
 376         fun restricted_to_fill_level : Bool is extern `{
 377                 return gtk_range_get_restrict_to_fill_level( recv );
 378         `}
 379
 380         fun restricted_to_fill_level=( restricted : Bool ) is extern `{
 381                 gtk_range_set_restrict_to_fill_level( recv, restricted );
 382         `}
 383
 384         #Gets whether the range displays the fill level graphically.
 385         fun show_fill_level : Bool is extern `{
 386                 return gtk_range_get_show_fill_level( recv );
 387         `}
 388
 389         fun show_fill_level=( is_displayed : Bool ) is extern `{
 390                 gtk_range_set_show_fill_level( recv, is_displayed );
 391         `}
 392
 393         fun adjustment : GtkAdjustment is extern `{
 394                 return gtk_range_get_adjustment( recv );
 395         `}
 396
 397         fun adjustment=( value : GtkAdjustment ) is extern `{
 398                 gtk_range_set_adjustment( recv, value );
 399         `}
 400
 401         fun inverted : Bool is extern `{
 402                 return gtk_range_get_inverted( recv );
 403         `}
 404
 405         fun inverted=( setting : Bool ) is extern `{
 406                 gtk_range_set_inverted( recv, setting );
 407         `}
 408
 409         fun value : Float is extern `{
 410                 return gtk_range_get_value( recv );
 411         `}
 412
 413         fun value=( val : Float ) is extern `{
 414                 gtk_range_set_value( recv, val );
 415         `}
 416
 417         fun set_increments( step : Float, page : Float ) is extern `{
 418                 gtk_range_set_increments( recv, step, page );
 419         `}
 420
 421         fun set_range( min : Float, max : Float ) is extern `{
 422                 gtk_range_set_range( recv, min, max );
 423         `}
 424
 425         fun round_digits : Int is extern `{
 426                 return gtk_range_get_round_digits( recv );
 427         `}
 428
 429         fun round_digits=( nb : Int ) is extern `{
 430                 gtk_range_set_round_digits( recv, nb );
 431         `}
 432
 433         fun size_fixed : Bool is extern `{
 434                 return gtk_range_get_slider_size_fixed( recv );
 435         `}
 436
 437         fun size_fixed=( is_fixed : Bool ) is extern `{
 438                 return gtk_range_set_slider_size_fixed( recv, is_fixed );
 439         `}
 440
 441         fun flippable : Bool is extern `{
 442                 return gtk_range_get_flippable( recv );
 443         `}
 444
 445         fun min_size=( is_flippable : Bool ) is extern `{
 446                 return gtk_range_set_flippable( recv, is_flippable );
 447         `}
 448
 449         fun min_slider_size : Int is extern `{
 450                 return gtk_range_get_min_slider_size( recv );
 451         `}
 452
 453         fun min_slider_size=( size : Int ) is extern `{
 454                 return gtk_range_set_min_slider_size( recv, size );
 455         `}
 456 end
 457
 458 #A slider widget for selecting a value from a range
 459 #@https://developer.gnome.org/gtk3/3.2/GtkScale.html
 460 extern GtkScale `{GtkScale *`}
 461         super GtkRange
 462
 463         new ( orientation : GtkOrientation, adjustment : GtkAdjustment ) is extern `{
 464                 return (GtkScale *)gtk_scale_new( orientation, adjustment );
 465         `}
 466
 467         new with_range ( orientation : GtkOrientation, min : Float, max : Float, step : Float ) is extern `{
 468                 return (GtkScale *)gtk_scale_new_with_range( orientation, min, max, step );
 469         `}
 470
 471         fun digits : Int is extern `{
 472                 return gtk_scale_get_digits( recv );
 473         `}
 474
 475         fun digits=( nb_digits : Int ) is extern `{
 476                 gtk_scale_set_digits( recv, nb_digits );
 477         `}
 478
 479         fun draw_value : Bool is extern `{
 480                 return gtk_scale_get_draw_value( recv );
 481         `}
 482
 483         fun draw_value=( is_displayed : Bool ) is extern `{
 484                 gtk_scale_set_draw_value( recv, is_displayed );
 485         `}
 486
 487         fun value_position : GtkPositionType is extern `{
 488                 return gtk_scale_get_value_pos( recv );
 489         `}
 490
 491         fun value_position=( pos : GtkPositionType ) is extern `{
 492                 gtk_scale_set_value_pos( recv, pos );
 493         `}
 494
 495         fun has_origin : Bool is extern `{
 496                 return gtk_scale_get_has_origin( recv );
 497         `}
 498
 499         fun has_origin=( orig : Bool ) is extern `{
 500                 gtk_scale_set_has_origin( recv, orig );
 501         `}
 502
 503         fun add_mark( value : Float, position : GtkPositionType, markup : String ) is extern import String::to_cstring`{
 504                 gtk_scale_add_mark( recv, value, position, String_to_cstring( markup ) );
 505         `}
 506
 507         #Removes any marks that have been added with gtk_scale_add_mark().
 508         fun clear_marks is extern `{
 509                 gtk_scale_clear_marks( recv );
 510         `}
 511
 512         #get layout
 513         #get layout offsets
 514
 515 end
 516
 517 #A scrollbar
 518 #@https://developer.gnome.org/gtk3/3.2/GtkScrollbar.html
 519 extern GtkScrollbar `{GtkScrollbar *`}
 520         super GtkRange
 521
 522                 new ( orientation : GtkOrientation, adjustment : GtkAdjustment ) is extern `{
 523                 return (GtkScrollbar *)gtk_scrollbar_new( orientation, adjustment );
 524         `}
 525 end
 526
 527 #A widget that displays a small to medium amount of text
 528 #@https://developer.gnome.org/gtk3/3.2/GtkLabel.html
 529 extern GtkLabel `{GtkLabel *`}
 530         super GtkMisc
 531
 532         # Create a GtkLabel with text
 533         new ( text : String ) is extern import String::to_cstring `{
 534                 return (GtkLabel*)gtk_label_new( String_to_cstring( text ) );
 535         `}
 536
 537         # Set the text of the label
 538         fun text=( text : String ) import String::to_cstring `{
 539                 gtk_label_set_text( recv, String_to_cstring( text ) );
 540         `}
 541
 542         # Returns the text of the label
 543         fun text : String import String::from_cstring `{
 544                 return new_String_from_cstring( (char*)gtk_label_get_text( recv ) );
 545         `}
 546
 547         # Sets the angle of rotation for the label.
 548         # An angle of 90 reads from from bottom to top, an angle of 270, from top to bottom.
 549         fun angle=( degre : Float ) `{
 550                 gtk_label_set_angle( recv, degre );
 551         `}
 552
 553         # Returns the angle of rotation for the label.
 554         fun angle : Float `{
 555                 return gtk_label_get_angle( recv );
 556         `}
 557
 558 end
 559
 560 #A widget displaying an image
 561 #@https://developer.gnome.org/gtk3/3.2/GtkImage.html
 562 extern GtkImage `{GtkImage *`}
 563         super GtkMisc
 564
 565         # Create a GtkImage
 566         new is extern `{
 567                 return (GtkImage*)gtk_image_new( );
 568         `}
 569
 570         # Create a GtkImage with text
 571         new file( filename : String ) is extern import String::to_cstring `{
 572                 return (GtkImage*)gtk_image_new_from_file( String_to_cstring( filename ) );
 573         `}
 574
 575         fun pixel_size : Int is extern `{
 576                 return gtk_image_get_pixel_size( recv );
 577         `}
 578
 579         fun pixel_size=( size : Int) is extern `{
 580                 gtk_image_set_pixel_size( recv, size );
 581         `}
 582
 583         fun clear is extern `{
 584                 gtk_image_clear( recv );
 585         `}
 586 end
 587
 588 #enum GtkImageType
 589 #Describes the image data representation used by a GtkImage.
 590 #@https://developer.gnome.org/gtk3/3.2/GtkImage.html#GtkImageType
 591 extern GtkImageType `{GtkImageType`}
 592         # There is no image displayed by the widget.
 593         new empty `{ return GTK_IMAGE_EMPTY; `}
 594
 595         # The widget contains a GdkPixbuf.
 596         new pixbuf `{ return GTK_IMAGE_PIXBUF; `}
 597
 598         # The widget contains a stock icon name.
 599         new stock `{ return GTK_IMAGE_STOCK; `}
 600
 601         # The widget contains a GtkIconSet.
 602         new icon_set `{ return GTK_IMAGE_ICON_SET; `}
 603
 604         # The widget contains a GdkPixbufAnimation.
 605         new animation `{ return GTK_IMAGE_ANIMATION; `}
 606
 607         # The widget contains a named icon.
 608         new icon_name `{ return GTK_IMAGE_ICON_NAME; `}
 609
 610         # The widget contains a GIcon.
 611         new gicon `{ return GTK_IMAGE_GICON; `}
 612 end
 613
 614 #Displays an arrow
 615 #@https://developer.gnome.org/gtk3/3.2/GtkArrow.html
 616 extern GtkArrow `{GtkArrow *`}
 617         super GtkMisc
 618
 619         new ( arrow_type : GtkArrowType, shadow_type : GtkShadowType ) is extern `{
 620                 return (GtkArrow *)gtk_arrow_new( arrow_type, shadow_type );
 621         `}
 622
 623         fun set( arrow_type : GtkArrowType, shadow_type : GtkShadowType ) is extern `{
 624                 gtk_arrow_set( recv, arrow_type, shadow_type );
 625         `}
 626 end
 627
 628 #A widget that emits a signal when clicked on
 629 #@https://developer.gnome.org/gtk3/stable/GtkButton.html
 630 extern GtkButton `{GtkButton *`}
 631         super GtkBin
 632
 633         new is extern `{
 634                 return (GtkButton *)gtk_button_new(  );
 635         `}
 636
 637         #Create a GtkButton with text
 638         new with_label( text : String ) is extern import String::to_cstring `{
 639                 return (GtkButton *)gtk_button_new_with_label( String_to_cstring( text ) );
 640         `}
 641
 642         new from_stock( stock_id : String ) is extern import String::to_cstring `{
 643                 return (GtkButton *)gtk_button_new_from_stock( String_to_cstring( stock_id ) );
 644         `}
 645
 646         fun text : String is extern `{
 647                 return new_String_from_cstring( (char *)gtk_button_get_label( recv ) );
 648         `}
 649
 650         fun text=( value : String ) is extern import String::to_cstring`{
 651                 gtk_button_set_label( recv, String_to_cstring( value ) );
 652         `}
 653
 654         fun on_click( to_call : GtkCallable, user_data : nullable Object ) do
 655                         signal_connect( "clicked", to_call, user_data )
 656         end
 657
 658 end
 659
 660 #A button which pops up a scale
 661 #@https://developer.gnome.org/gtk3/stable/GtkScaleButton.html
 662 extern GtkScaleButton `{GtkScaleButton *`}
 663         super GtkButton
 664
 665         #const gchar **icons
 666         new( size: GtkIconSize, min: Float, max: Float, step: Float ) is extern `{
 667                 return (GtkScaleButton *)gtk_scale_button_new( size, min, max, step, (const char **)0 );
 668         `}
 669 end
 670
 671 #Create buttons bound to a URL
 672 #@https://developer.gnome.org/gtk3/stable/GtkLinkButton.html
 673 extern GtkLinkButton `{GtkLinkButton *`}
 674         super GtkButton
 675
 676         new( uri: String ) is extern import String::to_cstring `{
 677                 return (GtkLinkButton *)gtk_link_button_new( String_to_cstring(uri) );
 678         `}
 679 end
 680
 681 #A container which can hide its child
 682 #https://developer.gnome.org/gtk3/stable/GtkExpander.html
 683 extern GtkExpander `{GtkExpander *`}
 684         super GtkBin
 685
 686         new( lbl : String) is extern import String::to_cstring`{
 687                 return (GtkExpander *)gtk_expander_new( String_to_cstring( lbl ) );
 688         `}
 689
 690         new with_mnemonic( lbl : String) is extern import String::to_cstring`{
 691                 return (GtkExpander *)gtk_expander_new_with_mnemonic(String_to_cstring( lbl ));
 692         `}
 693
 694         fun expanded : Bool is extern `{
 695                 return gtk_expander_get_expanded( recv );
 696         `}
 697
 698         fun expanded=( is_expanded : Bool ) is extern `{
 699                 gtk_expander_set_expanded( recv, is_expanded );
 700         `}
 701
 702         fun spacing : Int is extern `{
 703                 return gtk_expander_get_spacing( recv );
 704         `}
 705
 706         fun spacing=( pixels : Int ) is extern `{
 707                 gtk_expander_set_spacing( recv, pixels );
 708         `}
 709
 710         fun label_text : String is extern `{
 711                 return new_String_from_cstring( (char *)gtk_expander_get_label( recv ) );
 712         `}
 713
 714         fun label_text=( lbl : String ) is extern import String::to_cstring`{
 715                 gtk_expander_set_label( recv, String_to_cstring( lbl ) );
 716         `}
 717
 718         fun use_underline : Bool is extern `{
 719                 return gtk_expander_get_use_underline( recv );
 720         `}
 721
 722         fun use_underline=( used : Bool) is extern `{
 723                 gtk_expander_set_use_underline( recv, used );
 724         `}
 725
 726         fun use_markup : Bool is extern `{
 727                 return gtk_expander_get_use_markup( recv );
 728         `}
 729
 730         fun use_markup=( used : Bool) is extern `{
 731                  gtk_expander_set_use_markup( recv, used );
 732         `}
 733
 734         fun label_widget : GtkWidget is extern `{
 735                 return gtk_expander_get_label_widget( recv );
 736         `}
 737
 738         fun label_widget=( widget : GtkWidget ) is extern `{
 739                 gtk_expander_set_label_widget( recv, widget );
 740         `}
 741
 742         fun label_fill : Bool is extern `{
 743                 return gtk_expander_get_label_fill( recv );
 744         `}
 745
 746         fun label_fill=( fill : Bool ) is extern `{
 747                 gtk_expander_set_label_fill( recv, fill );
 748         `}
 749
 750         fun resize_toplevel : Bool is extern `{
 751                 return gtk_expander_get_resize_toplevel( recv );
 752         `}
 753
 754         fun resize_toplevel=( resize : Bool ) is extern `{
 755                 gtk_expander_set_resize_toplevel( recv, resize );
 756         `}
 757
 758 end
 759
 760 #An abstract class for laying out GtkCellRenderers
 761 #@https://developer.gnome.org/gtk3/stable/GtkCellArea.html
 762 extern GtkComboBox `{GtkComboBox *`}
 763         super GtkBin
 764
 765         new is extern `{
 766                 return (GtkComboBox *)gtk_combo_box_new( );
 767         `}
 768
 769         new with_entry is extern `{
 770                 return (GtkComboBox *)gtk_combo_box_new_with_entry( );
 771         `}
 772
 773         new with_model( model : GtkTreeModel ) is extern `{
 774                 return (GtkComboBox *)gtk_combo_box_new_with_model( model );
 775         `}
 776
 777         new with_model_and_entry( model : GtkTreeModel ) is extern `{
 778                 return (GtkComboBox *)gtk_combo_box_new_with_model_and_entry( model );
 779         `}
 780
 781         new with_area( area : GtkCellArea ) is extern `{
 782                 return (GtkComboBox *)gtk_combo_box_new_with_area( area );
 783         `}
 784
 785         new with_area_and_entry( area : GtkCellArea ) is extern `{
 786                 return (GtkComboBox *)gtk_combo_box_new_with_area_and_entry( area );
 787         `}
 788
 789         fun wrap_width : Int is extern `{
 790                 return gtk_combo_box_get_wrap_width( recv );
 791         `}
 792
 793         fun wrap_width=( width : Int ) is extern `{
 794                 gtk_combo_box_set_wrap_width( recv, width );
 795         `}
 796
 797         fun row_span_col : Int is extern `{
 798                 return gtk_combo_box_get_row_span_column( recv );
 799         `}
 800
 801         fun row_span_col=( row_span : Int ) is extern `{
 802                 gtk_combo_box_set_row_span_column( recv, row_span );
 803         `}
 804
 805         fun col_span_col : Int is extern `{
 806                 return gtk_combo_box_get_column_span_column( recv );
 807         `}
 808
 809         fun col_span_col=( col_span : Int ) is extern `{
 810                 gtk_combo_box_set_column_span_column( recv, col_span );
 811         `}
 812
 813         fun active_item : Int is extern `{
 814                 return gtk_combo_box_get_active( recv );
 815         `}
 816
 817         fun active_item=( active : Int ) is extern `{
 818                 gtk_combo_box_set_active( recv, active );
 819         `}
 820
 821         #fun active_iter : GtkTreeIter is extern `{
 822         #`}
 823         #
 824         #fun active_iter=( active : Bool ) is extern `{
 825         #`}
 826
 827         fun column_id : Int is extern `{
 828                 return gtk_combo_box_get_id_column( recv );
 829         `}
 830
 831         fun column_id=( id_column : Int ) is extern `{
 832                 gtk_combo_box_set_id_column( recv, id_column );
 833         `}
 834
 835         fun active_id : String is extern `{
 836                 return new_String_from_cstring( (char *)gtk_combo_box_get_active_id( recv ) );
 837         `}
 838
 839         fun active_id=( id_active : String ) is extern import String::to_cstring`{
 840                 gtk_combo_box_set_active_id( recv, String_to_cstring( id_active ) );
 841         `}
 842
 843         fun model : GtkTreeModel is extern `{
 844                 return gtk_combo_box_get_model( recv );
 845         `}
 846
 847         fun model=( model : GtkTreeModel ) is extern `{
 848                 gtk_combo_box_set_model( recv, model );
 849         `}
 850
 851         fun popup is extern `{
 852                 gtk_combo_box_popup( recv );
 853         `}
 854
 855         fun popdown is extern `{
 856                 gtk_combo_box_popdown( recv );
 857         `}
 858
 859         fun title : String is extern`{
 860                 return new_String_from_cstring( (char *)gtk_combo_box_get_title( recv ) );
 861         `}
 862
 863         fun title=( t : String ) is extern import String::to_cstring`{
 864                 gtk_combo_box_set_title( recv, String_to_cstring( t ) );
 865         `}
 866
 867         fun has_entry : Bool is extern `{
 868                 return gtk_combo_box_get_has_entry( recv );
 869         `}
 870
 871         fun with_fixed : Bool is extern `{
 872                 return gtk_combo_box_get_popup_fixed_width( recv );
 873         `}
 874
 875         fun with_fixed=( fixed : Bool ) is extern `{
 876                 gtk_combo_box_set_popup_fixed_width( recv, fixed );
 877         `}
 878 end
 879
 880 #Show a spinner animation
 881 #@https://developer.gnome.org/gtk3/3.2/GtkSpinner.html
 882 extern GtkSpinner `{GtkSpinner *`}
 883         super GtkWidget
 884
 885         new is extern `{
 886                  return (GtkSpinner *)gtk_spinner_new();
 887         `}
 888
 889         fun start is extern `{
 890                 return gtk_spinner_start( recv );
 891         `}
 892
 893         fun stop is extern `{
 894                 return gtk_spinner_stop( recv );
 895         `}
 896 end
 897
 898 #A "light switch" style toggle
 899 #@https://developer.gnome.org/gtk3/3.2/GtkSwitch.html
 900 extern GtkSwitch `{GtkSwitch *`}
 901         super GtkWidget
 902
 903         new is extern `{
 904                  return (GtkSwitch *)gtk_switch_new();
 905         `}
 906
 907         fun active : Bool is extern `{
 908                 return gtk_switch_get_active( recv );
 909         `}
 910
 911         fun active=( is_active : Bool ) is extern `{
 912                 return gtk_switch_set_active( recv, is_active );
 913         `}
 914 end
 915
 916
 917 #A widget which controls the alignment and size of its child
 918 #https://developer.gnome.org/gtk3/stable/GtkAlignment.html
 919 extern GtkAlignment `{GtkAlignment *`}
 920         super GtkBin
 921
 922         new ( xalign : Float, yalign : Float, xscale : Float, yscale : Float ) is extern `{
 923                 return (GtkAlignment *)gtk_alignment_new( xalign, yalign, xscale, yscale );
 924         `}
 925
 926         fun set ( xalign : Float, yalign : Float, xscale : Float, yscale : Float ) is extern `{
 927                 gtk_alignment_set( recv, xalign, yalign, xscale, yscale );
 928         `}
 929
 930         #get_padding
 931         #set_padding
 932 end
 933
 934 #A representation of an adjustable bounded value
 935 #@https://developer.gnome.org/gtk3/stable/GtkAdjustment.html#GtkAdjustment.description
 936 extern GtkAdjustment `{GtkAdjustment *`}
 937
 938 end
 939
 940 extern GdkColor `{GdkColor*`}
 941         new is extern `{
 942                 GdkColor * col = malloc(sizeof(GdkColor));
 943                 /*gdk_color_parse( "red", recv );*/
 944                 gdk_color_parse( "red", col);
 945                 return col;
 946         `}
 947 end
 948
 949 extern GdkRGBA `{GdkRGBA*`}
 950         new is extern `{
 951         `}
 952 end
 953