src/gtk/toplevel.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/toplevel.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 #ifdef __VMS
  22 #define XIconifyWindow XICONIFYWINDOW
  23 #endif
  24
  25 #include "wx/toplevel.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/frame.h"
  29     #include "wx/icon.h"
  30     #include "wx/log.h"
  31     #include "wx/app.h"
  32 #endif
  33
  34 #include "wx/gtk/private.h"
  35 #include "wx/evtloop.h"
  36
  37 #include <gtk/gtk.h>
  38 #include <gdk/gdkx.h>
  39
  40 #include "wx/gtk/win_gtk.h"
  41
  42 #include "wx/unix/utilsx11.h"
  43
  44 // XA_CARDINAL
  45 #include <X11/Xatom.h>
  46
  47 // ----------------------------------------------------------------------------
  48 // data
  49 // ----------------------------------------------------------------------------
  50
  51 extern int              g_openDialogs;
  52 extern wxWindowGTK     *g_delayedFocus;
  53
  54 // the frame that is currently active (i.e. its child has focus). It is
  55 // used to generate wxActivateEvents
  56 static wxTopLevelWindowGTK *g_activeFrame = (wxTopLevelWindowGTK*) NULL;
  57 static wxTopLevelWindowGTK *g_lastActiveFrame = (wxTopLevelWindowGTK*) NULL;
  58
  59 // if we detect that the app has got/lost the focus, we set this variable to
  60 // either TRUE or FALSE and an activate event will be sent during the next
  61 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  62 // send any activate events at all
  63 static int g_sendActivateEvent = -1;
  64
  65 //-----------------------------------------------------------------------------
  66 // RequestUserAttention related functions
  67 //-----------------------------------------------------------------------------
  68
  69 extern "C" {
  70 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  71                                            gboolean setting)
  72 {
  73     wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
  74     GdkWindow *window = GTK_WIDGET(win)->window;
  75     XWMHints *wm_hints;
  76
  77     wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
  78
  79     if (!wm_hints)
  80         wm_hints = XAllocWMHints();
  81
  82     if (setting)
  83         wm_hints->flags |= XUrgencyHint;
  84     else
  85         wm_hints->flags &= ~XUrgencyHint;
  86
  87     XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
  88     XFree(wm_hints);
  89 }
  90
  91 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
  92 {
  93 #if GTK_CHECK_VERSION(2,7,0)
  94     if(!gtk_check_version(2,7,0))
  95         gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
  96     else
  97 #endif
  98         wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
  99
 100     win->m_urgency_hint = -2;
 101     return FALSE;
 102 }
 103 }
 104
 105 //-----------------------------------------------------------------------------
 106 // "focus_in_event"
 107 //-----------------------------------------------------------------------------
 108
 109 extern "C" {
 110 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 111                                          GdkEvent *WXUNUSED(event),
 112                                          wxTopLevelWindowGTK *win )
 113 {
 114     // don't need to install idle handler, its done from "event" signal
 115
 116     switch ( g_sendActivateEvent )
 117     {
 118         case -1:
 119             // we've got focus from outside, synthetize wxActivateEvent
 120             g_sendActivateEvent = 1;
 121             break;
 122
 123         case 0:
 124             // another our window just lost focus, it was already ours before
 125             // - don't send any wxActivateEvent
 126             g_sendActivateEvent = -1;
 127             break;
 128     }
 129
 130     g_activeFrame = win;
 131     g_lastActiveFrame = g_activeFrame;
 132
 133     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 134
 135     // MR: wxRequestUserAttention related block
 136     switch( win->m_urgency_hint )
 137     {
 138         default:
 139             g_source_remove( win->m_urgency_hint );
 140             // no break, fallthrough to remove hint too
 141         case -1:
 142 #if GTK_CHECK_VERSION(2,7,0)
 143             if(!gtk_check_version(2,7,0))
 144                 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 145             else
 146 #endif
 147             {
 148                 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 149             }
 150
 151             win->m_urgency_hint = -2;
 152             break;
 153
 154         case -2: break;
 155     }
 156
 157     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 158     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 159     event.SetEventObject(g_activeFrame);
 160     g_activeFrame->GetEventHandler()->ProcessEvent(event);
 161
 162     return FALSE;
 163 }
 164 }
 165
 166 //-----------------------------------------------------------------------------
 167 // "focus_out_event"
 168 //-----------------------------------------------------------------------------
 169
 170 extern "C" {
 171 static gboolean gtk_frame_focus_out_callback( GtkWidget *widget,
 172                                           GdkEventFocus *WXUNUSED(gdk_event),
 173                                           wxTopLevelWindowGTK *win )
 174 {
 175     // don't need to install idle handler, its done from "event" signal
 176
 177     // if the focus goes out of our app alltogether, OnIdle() will send
 178     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 179     // g_sendActivateEvent to -1
 180     g_sendActivateEvent = 0;
 181
 182     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 183
 184     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 185
 186     if (g_activeFrame)
 187     {
 188         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 189         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 190         event.SetEventObject(g_activeFrame);
 191         g_activeFrame->GetEventHandler()->ProcessEvent(event);
 192
 193         g_activeFrame = NULL;
 194     }
 195
 196     return FALSE;
 197 }
 198 }
 199
 200 //-----------------------------------------------------------------------------
 201 // "focus" from m_window
 202 //-----------------------------------------------------------------------------
 203
 204 extern "C" {
 205 static gboolean gtk_frame_focus_callback( GtkWidget *WXUNUSED(widget),
 206                                           GtkDirectionType WXUNUSED(d),
 207                                           wxWindow *WXUNUSED(win) )
 208 {
 209     if (g_isIdle)
 210         wxapp_install_idle_handler();
 211
 212     // This disables GTK's tab traversal
 213     return TRUE;
 214 }
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // "size_allocate"
 219 //-----------------------------------------------------------------------------
 220
 221 extern "C" {
 222 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxTopLevelWindowGTK *win )
 223 {
 224     if (g_isIdle)
 225         wxapp_install_idle_handler();
 226
 227     if (!win->m_hasVMT)
 228         return;
 229
 230     if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
 231     {
 232 /*
 233         wxPrintf( wxT("gtk_frame_size_callback from ") );
 234         if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
 235            wxPrintf( win->GetClassInfo()->GetClassName() );
 236         wxPrintf( wxT(" %d %d %d %d\n"), (int)alloc->x,
 237                                 (int)alloc->y,
 238                                 (int)alloc->width,
 239                                 (int)alloc->height );
 240 */
 241
 242         // Tell the wxWindow class about the new size
 243         win->m_width = alloc->width;
 244         win->m_height = alloc->height;
 245
 246         win->GtkUpdateSize();
 247     }
 248 }
 249 }
 250
 251 //-----------------------------------------------------------------------------
 252 // "delete_event"
 253 //-----------------------------------------------------------------------------
 254
 255 extern "C" {
 256 static gboolean
 257 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 258                            GdkEvent *WXUNUSED(event),
 259                            wxTopLevelWindowGTK *win )
 260 {
 261     // don't need to install idle handler, its done from "event" signal
 262
 263     if (win->IsEnabled() &&
 264         (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 265          win->IsGrabbed()))
 266         win->Close();
 267
 268     return TRUE;
 269 }
 270 }
 271
 272
 273 //-----------------------------------------------------------------------------
 274 // "configure_event"
 275 //-----------------------------------------------------------------------------
 276
 277 extern "C" {
 278 static gboolean
 279 gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget),
 280                               GdkEventConfigure *WXUNUSED(event),
 281                               wxTopLevelWindowGTK *win )
 282 {
 283     // don't need to install idle handler, its done from "event" signal
 284
 285     if (!win->m_hasVMT || !win->IsShown())
 286         return FALSE;
 287
 288
 289     int x = 0;
 290     int y = 0;
 291     gdk_window_get_root_origin( win->m_widget->window, &x, &y );
 292     win->m_x = x;
 293     win->m_y = y;
 294
 295     wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
 296     mevent.SetEventObject( win );
 297     win->GetEventHandler()->ProcessEvent( mevent );
 298
 299     return FALSE;
 300 }
 301 }
 302
 303 //-----------------------------------------------------------------------------
 304 // "realize" from m_widget
 305 //-----------------------------------------------------------------------------
 306
 307 // we cannot MWM hints and icons before the widget has been realized,
 308 // so we do this directly after realization
 309
 310 extern "C" {
 311 static void
 312 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 313                              wxTopLevelWindowGTK *win )
 314 {
 315     if (g_isIdle)
 316         wxapp_install_idle_handler();
 317
 318     // All this is for Motif Window Manager "hints" and is supposed to be
 319     // recognized by other WM as well. Not tested.
 320     gdk_window_set_decorations(win->m_widget->window,
 321                                (GdkWMDecoration)win->m_gdkDecor);
 322     gdk_window_set_functions(win->m_widget->window,
 323                                (GdkWMFunction)win->m_gdkFunc);
 324
 325     // GTK's shrinking/growing policy
 326     if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0)
 327         gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
 328     else
 329         gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 330
 331     // reset the icon
 332     wxIconBundle iconsOld = win->GetIcons();
 333     if ( iconsOld.GetIcon(-1).Ok() )
 334     {
 335         win->SetIcon( wxNullIcon );
 336         win->SetIcons( iconsOld );
 337     }
 338 }
 339 }
 340
 341 //-----------------------------------------------------------------------------
 342 // "map_event" from m_widget
 343 //-----------------------------------------------------------------------------
 344
 345 extern "C" {
 346 static void
 347 gtk_frame_map_callback( GtkWidget * WXUNUSED(widget),
 348                         GdkEvent * WXUNUSED(event),
 349                         wxTopLevelWindow *win )
 350 {
 351     win->SetIconizeState(false);
 352 }
 353 }
 354
 355 //-----------------------------------------------------------------------------
 356 // "unmap_event" from m_widget
 357 //-----------------------------------------------------------------------------
 358
 359 extern "C" {
 360 static void
 361 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
 362                           GdkEvent * WXUNUSED(event),
 363                           wxTopLevelWindow *win )
 364 {
 365     win->SetIconizeState(true);
 366 }
 367 }
 368
 369 //-----------------------------------------------------------------------------
 370 // "expose_event" of m_client
 371 //-----------------------------------------------------------------------------
 372
 373 extern "C" {
 374 static gboolean
 375 gtk_window_expose_callback( GtkWidget *widget,
 376                             GdkEventExpose *gdk_event,
 377                             wxWindow *win )
 378 {
 379     GtkPizza *pizza = GTK_PIZZA(widget);
 380
 381     gtk_paint_flat_box (win->m_widget->style,
 382                         pizza->bin_window, GTK_STATE_NORMAL,
 383                         GTK_SHADOW_NONE,
 384                         &gdk_event->area,
 385                         win->m_widget,
 386                         (char *)"base",
 387                         0, 0, -1, -1);
 388
 389     return FALSE;
 390 }
 391 }
 392
 393 // ----------------------------------------------------------------------------
 394 // wxTopLevelWindowGTK itself
 395 // ----------------------------------------------------------------------------
 396
 397 //-----------------------------------------------------------------------------
 398 // InsertChild for wxTopLevelWindowGTK
 399 //-----------------------------------------------------------------------------
 400
 401 /* Callback for wxTopLevelWindowGTK. This very strange beast has to be used because
 402  * C++ has no virtual methods in a constructor. We have to emulate a
 403  * virtual function here as wxWidgets requires different ways to insert
 404  * a child in container classes. */
 405
 406 static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow* child )
 407 {
 408     wxASSERT( GTK_IS_WIDGET(child->m_widget) );
 409
 410     if (!parent->m_insertInClientArea)
 411     {
 412         // these are outside the client area
 413         wxTopLevelWindowGTK* frame = (wxTopLevelWindowGTK*) parent;
 414         gtk_pizza_put( GTK_PIZZA(frame->m_mainWidget),
 415                          GTK_WIDGET(child->m_widget),
 416                          child->m_x,
 417                          child->m_y,
 418                          child->m_width,
 419                          child->m_height );
 420     }
 421     else
 422     {
 423         // these are inside the client area
 424         gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
 425                          GTK_WIDGET(child->m_widget),
 426                          child->m_x,
 427                          child->m_y,
 428                          child->m_width,
 429                          child->m_height );
 430     }
 431 }
 432
 433 // ----------------------------------------------------------------------------
 434 // wxTopLevelWindowGTK creation
 435 // ----------------------------------------------------------------------------
 436
 437 void wxTopLevelWindowGTK::Init()
 438 {
 439     m_sizeSet = false;
 440     m_miniEdge = 0;
 441     m_miniTitle = 0;
 442     m_mainWidget = (GtkWidget*) NULL;
 443     m_insertInClientArea = true;
 444     m_isIconized = false;
 445     m_fsIsShowing = false;
 446     m_fsSaveFlag = 0;
 447     m_themeEnabled = true;
 448     m_gdkDecor = m_gdkFunc = 0;
 449     m_grabbed = false;
 450
 451     m_urgency_hint = -2;
 452 }
 453
 454 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 455                                   wxWindowID id,
 456                                   const wxString& title,
 457                                   const wxPoint& pos,
 458                                   const wxSize& sizeOrig,
 459                                   long style,
 460                                   const wxString &name )
 461 {
 462     // always create a frame of some reasonable, even if arbitrary, size (at
 463     // least for MSW compatibility)
 464     wxSize size = sizeOrig;
 465     size.x = WidthDefault(size.x);
 466     size.y = HeightDefault(size.y);
 467
 468     wxTopLevelWindows.Append( this );
 469
 470     m_needParent = false;
 471
 472     if (!PreCreation( parent, pos, size ) ||
 473         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 474     {
 475         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 476         return false;
 477     }
 478
 479     m_title = title;
 480
 481     m_insertCallback = (wxInsertChildFunction) wxInsertChildInTopLevelWindow;
 482
 483     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 484     //     e.g. in wxTaskBarIconAreaGTK
 485     if (m_widget == NULL)
 486     {
 487         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 488         {
 489             m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 490             // Tell WM that this is a dialog window and make it center
 491             // on parent by default (this is what GtkDialog ctor does):
 492             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 493                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 494             gtk_window_set_position(GTK_WINDOW(m_widget),
 495                                     GTK_WIN_POS_CENTER_ON_PARENT);
 496         }
 497         else
 498         {
 499             m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 500 #if GTK_CHECK_VERSION(2,1,0)
 501             if (!gtk_check_version(2,1,0))
 502             {
 503                 if (style & wxFRAME_TOOL_WINDOW)
 504                 {
 505                     gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 506                                              GDK_WINDOW_TYPE_HINT_UTILITY);
 507
 508                     // On some WMs, like KDE, a TOOL_WINDOW will still show
 509                     // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 510                     // For consistency between WMs and with Windows, we
 511                     // should set the NO_TASKBAR flag which will apply
 512                     // the set_skip_taskbar_hint if it is available,
 513                     // ensuring no taskbar entry will appear.
 514                     style |= wxFRAME_NO_TASKBAR;
 515                 }
 516             }
 517 #endif
 518         }
 519     }
 520
 521     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 522     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 523                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 524                        (style & wxFRAME_FLOAT_ON_PARENT)))
 525     {
 526         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 527                                       GTK_WINDOW(topParent->m_widget) );
 528     }
 529
 530 #if GTK_CHECK_VERSION(2,2,0)
 531     if (!gtk_check_version(2,2,0))
 532     {
 533         if (style & wxFRAME_NO_TASKBAR)
 534         {
 535             gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 536         }
 537     }
 538 #endif
 539
 540 #ifdef __WXGTK24__
 541     if (!gtk_check_version(2,4,0))
 542     {
 543         if (style & wxSTAY_ON_TOP)
 544         {
 545             gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 546         }
 547     }
 548 #endif
 549
 550 #if 0
 551     if (!name.empty())
 552         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 553 #endif
 554
 555     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 556     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 557
 558     g_signal_connect (m_widget, "delete_event",
 559                       G_CALLBACK (gtk_frame_delete_callback), this);
 560
 561     // m_mainWidget holds the toolbar, the menubar and the client area
 562     m_mainWidget = gtk_pizza_new();
 563     gtk_widget_show( m_mainWidget );
 564     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 565     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 566
 567     if (m_miniEdge == 0) // wxMiniFrame has its own version.
 568     {
 569        // For m_mainWidget themes
 570        g_signal_connect (m_mainWidget, "expose_event",
 571                          G_CALLBACK (gtk_window_expose_callback), this);
 572     }
 573
 574     // m_wxwindow only represents the client area without toolbar and menubar
 575     m_wxwindow = gtk_pizza_new();
 576     gtk_widget_show( m_wxwindow );
 577     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 578
 579     // we donm't allow the frame to get the focus as otherwise
 580     // the frame will grab it at arbitrary focus changes
 581     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 582
 583     if (m_parent) m_parent->AddChild( this );
 584
 585     // the user resized the frame by dragging etc.
 586     g_signal_connect (m_widget, "size_allocate",
 587                       G_CALLBACK (gtk_frame_size_callback), this);
 588
 589     PostCreation();
 590
 591     if ((m_x != -1) || (m_y != -1))
 592         gtk_widget_set_uposition( m_widget, m_x, m_y );
 593
 594     gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height );
 595
 596     //  we cannot set MWM hints and icons before the widget has
 597     //  been realized, so we do this directly after realization
 598     g_signal_connect (m_widget, "realize",
 599                       G_CALLBACK (gtk_frame_realized_callback), this);
 600
 601     // map and unmap for iconized state
 602     g_signal_connect (m_widget, "map_event",
 603                       G_CALLBACK (gtk_frame_map_callback), this);
 604     g_signal_connect (m_widget, "unmap_event",
 605                       G_CALLBACK (gtk_frame_unmap_callback), this);
 606
 607     // the only way to get the window size is to connect to this event
 608     g_signal_connect (m_widget, "configure_event",
 609                       G_CALLBACK (gtk_frame_configure_callback), this);
 610
 611     // disable native tab traversal
 612     g_signal_connect (m_widget, "focus",
 613                       G_CALLBACK (gtk_frame_focus_callback), this);
 614
 615     // activation
 616     g_signal_connect_after (m_widget, "focus_in_event",
 617                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 618     g_signal_connect_after (m_widget, "focus_out_event",
 619                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 620
 621     // decorations
 622     if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
 623     {
 624         m_gdkDecor = 0;
 625         m_gdkFunc = 0;
 626     }
 627     else
 628     if (m_miniEdge > 0)
 629     {
 630         m_gdkDecor = 0;
 631         m_gdkFunc = 0;
 632
 633         if ((style & wxRESIZE_BORDER) != 0)
 634            m_gdkFunc |= GDK_FUNC_RESIZE;
 635     }
 636     else
 637     {
 638         m_gdkDecor = (long) GDK_DECOR_BORDER;
 639         m_gdkFunc = (long) GDK_FUNC_MOVE;
 640
 641         // All this is for Motif Window Manager "hints" and is supposed to be
 642         // recognized by other WMs as well.
 643         if ((style & wxCAPTION) != 0)
 644         {
 645             m_gdkDecor |= GDK_DECOR_TITLE;
 646         }
 647         if ((style & wxCLOSE_BOX) != 0)
 648         {
 649             m_gdkFunc |= GDK_FUNC_CLOSE;
 650         }
 651         if ((style & wxSYSTEM_MENU) != 0)
 652         {
 653             m_gdkDecor |= GDK_DECOR_MENU;
 654         }
 655         if ((style & wxMINIMIZE_BOX) != 0)
 656         {
 657             m_gdkFunc |= GDK_FUNC_MINIMIZE;
 658             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 659         }
 660         if ((style & wxMAXIMIZE_BOX) != 0)
 661         {
 662             m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 663             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 664         }
 665         if ((style & wxRESIZE_BORDER) != 0)
 666         {
 667            m_gdkFunc |= GDK_FUNC_RESIZE;
 668            m_gdkDecor |= GDK_DECOR_RESIZEH;
 669         }
 670     }
 671
 672     return true;
 673 }
 674
 675 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 676 {
 677     if (m_grabbed)
 678     {
 679         wxFAIL_MSG(_T("Window still grabbed"));
 680         RemoveGrab();
 681     }
 682
 683     m_isBeingDeleted = true;
 684
 685     // it may also be GtkScrolledWindow in the case of an MDI child
 686     if (GTK_IS_WINDOW(m_widget))
 687     {
 688         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 689     }
 690
 691     if (g_activeFrame == this)
 692         g_activeFrame = NULL;
 693     if (g_lastActiveFrame == this)
 694         g_lastActiveFrame = NULL;
 695 }
 696
 697
 698
 699 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long style )
 700 {
 701     if (show == m_fsIsShowing)
 702         return false; // return what?
 703
 704     m_fsIsShowing = show;
 705
 706     wxX11FullScreenMethod method =
 707         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 708                                  (WXWindow)GDK_ROOT_WINDOW());
 709
 710 #if GTK_CHECK_VERSION(2,2,0)
 711     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 712     //     to switch to fullscreen, which is not always available. We must
 713     //     check if WM supports the spec and use legacy methods if it
 714     //     doesn't.
 715     if ( (method == wxX11_FS_WMSPEC) && !gtk_check_version(2,2,0) )
 716     {
 717         if (show)
 718         {
 719             m_fsSaveFlag = style;
 720             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 721         }
 722         else
 723         {
 724             m_fsSaveFlag = 0;
 725             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 726         }
 727     }
 728     else
 729 #endif // GTK+ >= 2.2.0
 730     {
 731         GdkWindow *window = m_widget->window;
 732
 733         if (show)
 734         {
 735             m_fsSaveFlag = style;
 736             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 737             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 738
 739             int screen_width,screen_height;
 740             wxDisplaySize( &screen_width, &screen_height );
 741
 742             gint client_x, client_y, root_x, root_y;
 743             gint width, height;
 744
 745             if (method != wxX11_FS_WMSPEC)
 746             {
 747                 // don't do it always, Metacity hates it
 748                 m_fsSaveGdkFunc = m_gdkFunc;
 749                 m_fsSaveGdkDecor = m_gdkDecor;
 750                 m_gdkFunc = m_gdkDecor = 0;
 751                 gdk_window_set_decorations(window, (GdkWMDecoration)0);
 752                 gdk_window_set_functions(window, (GdkWMFunction)0);
 753             }
 754
 755             gdk_window_get_origin (m_widget->window, &root_x, &root_y);
 756             gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
 757                          &width, &height, NULL);
 758
 759             gdk_window_move_resize (m_widget->window, -client_x, -client_y,
 760                         screen_width + 1, screen_height + 1);
 761
 762             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 763                                     (WXWindow)GDK_ROOT_WINDOW(),
 764                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 765                                     show, &m_fsSaveFrame, method);
 766         }
 767         else // hide
 768         {
 769             m_fsSaveFlag = 0;
 770             if (method != wxX11_FS_WMSPEC)
 771             {
 772                 // don't do it always, Metacity hates it
 773                 m_gdkFunc = m_fsSaveGdkFunc;
 774                 m_gdkDecor = m_fsSaveGdkDecor;
 775                 gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 776                 gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 777             }
 778
 779             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 780                                     (WXWindow)GDK_ROOT_WINDOW(),
 781                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 782                                     show, &m_fsSaveFrame, method);
 783
 784             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 785                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 786         }
 787     }
 788
 789     // documented behaviour is to show the window if it's still hidden when
 790     // showing it full screen
 791     if ( show && !IsShown() )
 792         Show();
 793
 794     return true;
 795 }
 796
 797 // ----------------------------------------------------------------------------
 798 // overridden wxWindow methods
 799 // ----------------------------------------------------------------------------
 800
 801 bool wxTopLevelWindowGTK::Show( bool show )
 802 {
 803     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 804
 805     if (show == IsShown())
 806         return true;
 807
 808     if (show && !m_sizeSet)
 809     {
 810         /* by calling GtkOnSize here, we don't have to call
 811            either after showing the frame, which would entail
 812            much ugly flicker or from within the size_allocate
 813            handler, because GTK 1.1.X forbids that. */
 814
 815         GtkOnSize();
 816     }
 817
 818     // This seems no longer to be needed and the call
 819     // itself is deprecated.
 820     //
 821     //if (show)
 822     //    gtk_widget_set_uposition( m_widget, m_x, m_y );
 823
 824     return wxWindow::Show( show );
 825 }
 826
 827 void wxTopLevelWindowGTK::Raise()
 828 {
 829     gtk_window_present( GTK_WINDOW( m_widget ) );
 830 }
 831
 832 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 833 {
 834     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 835 }
 836
 837 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 838 {
 839     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 840
 841     // this shouldn't happen: wxFrame, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow
 842     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
 843
 844     // avoid recursions
 845     if (m_resizing)
 846         return;
 847     m_resizing = true;
 848
 849     int old_x = m_x;
 850     int old_y = m_y;
 851
 852     int old_width = m_width;
 853     int old_height = m_height;
 854
 855     if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
 856     {
 857         if (x != -1) m_x = x;
 858         if (y != -1) m_y = y;
 859     }
 860     else
 861     {
 862         m_x = x;
 863         m_y = y;
 864     }
 865     if (width != -1) m_width = width;
 866     if (height != -1) m_height = height;
 867
 868 /*
 869     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 870     {
 871         if (width == -1) m_width = 80;
 872     }
 873
 874     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 875     {
 876        if (height == -1) m_height = 26;
 877     }
 878 */
 879
 880     int minWidth = GetMinWidth(),
 881         minHeight = GetMinHeight(),
 882         maxWidth = GetMaxWidth(),
 883         maxHeight = GetMaxHeight();
 884
 885 #ifdef __WXGPE__
 886     // GPE's window manager doesn't like size hints
 887     // at all, esp. when the user has to use the
 888     // virtual keyboard.
 889     minWidth = -1;
 890     minHeight = -1;
 891     maxWidth = -1;
 892     maxHeight = -1;
 893 #endif
 894
 895     if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
 896     if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
 897     if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
 898     if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
 899
 900     if ((m_x != -1) || (m_y != -1))
 901     {
 902         if ((m_x != old_x) || (m_y != old_y))
 903         {
 904             gtk_widget_set_uposition( m_widget, m_x, m_y );
 905         }
 906     }
 907
 908     if ((m_width != old_width) || (m_height != old_height))
 909     {
 910         if (m_widget->window)
 911             gdk_window_resize( m_widget->window, m_width, m_height );
 912         else
 913             gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height );
 914
 915         /* we set the size in GtkOnSize, i.e. mostly the actual resizing is
 916            done either directly before the frame is shown or in idle time
 917            so that different calls to SetSize() don't lead to flicker. */
 918         m_sizeSet = false;
 919     }
 920
 921     m_resizing = false;
 922 }
 923
 924 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
 925 {
 926     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 927
 928     if (height)
 929     {
 930         *height = m_height - 2 * m_miniEdge - m_miniTitle;
 931         if (*height < 0)
 932             *height = 0;
 933     }
 934     if (width)
 935     {
 936         *width = m_width - 2 * m_miniEdge;
 937         if (*width < 0)
 938             *width = 0;
 939     }
 940 }
 941
 942 void wxTopLevelWindowGTK::DoSetClientSize( int width, int height )
 943 {
 944     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 945
 946     DoSetSize(-1, -1,
 947               width + m_miniEdge*2, height  + m_miniEdge*2 + m_miniTitle, 0);
 948 }
 949
 950 void wxTopLevelWindowGTK::GtkOnSize()
 951 {
 952     // avoid recursions
 953     if (m_resizing) return;
 954     m_resizing = true;
 955
 956     if ( m_wxwindow == NULL ) return;
 957
 958     /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses
 959        wxWindow::Create to create it's GTK equivalent. m_mainWidget is only
 960        set in wxFrame::Create so it is used to check what kind of frame we
 961        have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
 962        skip the part which handles m_frameMenuBar, m_frameToolBar and (most
 963        importantly) m_mainWidget */
 964
 965     int minWidth = GetMinWidth(),
 966         minHeight = GetMinHeight(),
 967         maxWidth = GetMaxWidth(),
 968         maxHeight = GetMaxHeight();
 969
 970 #ifdef __WXGPE__
 971     // GPE's window manager doesn't like size hints
 972     // at all, esp. when the user has to use the
 973     // virtual keyboard.
 974     minWidth = -1;
 975     minHeight = -1;
 976     maxWidth = -1;
 977     maxHeight = -1;
 978 #endif
 979
 980     if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
 981     if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
 982     if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
 983     if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
 984
 985     if (m_mainWidget)
 986     {
 987         // set size hints
 988         gint            flag = 0; // GDK_HINT_POS;
 989         GdkGeometry     geom;
 990
 991         if ((minWidth != -1) || (minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
 992         if ((maxWidth != -1) || (maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
 993
 994         geom.min_width = minWidth;
 995         geom.min_height = minHeight;
 996
 997             // Because of the way we set GDK_HINT_MAX_SIZE above, if either of
 998             // maxHeight or maxWidth is set, we must set them both, else the
 999             // remaining -1 will be taken literally.
1000
1001             // I'm certain this also happens elsewhere, and is the probable
1002             // cause of other such things as:
1003             // Gtk-WARNING **: gtk_widget_size_allocate():
1004             //       attempt to allocate widget with width 65535 and height 600
1005             // but I don't have time to track them all now..
1006             //
1007             // Really we need to encapulate all this height/width business and
1008             // stop any old method from ripping at the members directly and
1009             // scattering -1's without regard for who might resolve them later.
1010
1011         geom.max_width = ( maxHeight == -1 ) ? maxWidth
1012                          : ( maxWidth == -1 ) ? wxGetDisplaySize().GetWidth()
1013                            : maxWidth ;
1014
1015         geom.max_height = ( maxWidth == -1 ) ? maxHeight    // ( == -1 here )
1016                           : ( maxHeight == -1 ) ? wxGetDisplaySize().GetHeight()
1017                             : maxHeight ;
1018
1019         gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
1020                                        (GtkWidget*) NULL,
1021                                        &geom,
1022                                        (GdkWindowHints) flag );
1023
1024         /* I revert back to wxGTK's original behaviour. m_mainWidget holds the
1025          * menubar, the toolbar and the client area, which is represented by
1026          * m_wxwindow.
1027          * this hurts in the eye, but I don't want to call SetSize()
1028          * because I don't want to call any non-native functions here. */
1029
1030         int client_x = m_miniEdge;
1031         int client_y = m_miniEdge + m_miniTitle;
1032         int client_w = m_width - 2*m_miniEdge;
1033         int client_h = m_height - 2*m_miniEdge - m_miniTitle;
1034         if (client_w < 0)
1035             client_w = 0;
1036         if (client_h < 0)
1037             client_h = 0;
1038
1039         // Let the parent perform the resize
1040         gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
1041                               m_wxwindow,
1042                               client_x, client_y, client_w, client_h );
1043     }
1044     else
1045     {
1046         // If there is no m_mainWidget between m_widget and m_wxwindow there
1047         // is no need to set the size or position of m_wxwindow.
1048     }
1049
1050     m_sizeSet = true;
1051
1052     // send size event to frame
1053     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
1054     event.SetEventObject( this );
1055     GetEventHandler()->ProcessEvent( event );
1056
1057     m_resizing = false;
1058 }
1059
1060 void wxTopLevelWindowGTK::OnInternalIdle()
1061 {
1062     if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow))
1063     {
1064         GtkOnSize();
1065
1066         // we'll come back later
1067         if (g_isIdle)
1068             wxapp_install_idle_handler();
1069         return;
1070     }
1071
1072     // set the focus if not done yet and if we can already do it
1073     if ( GTK_WIDGET_REALIZED(m_wxwindow) )
1074     {
1075         if ( g_delayedFocus &&
1076              wxGetTopLevelParent((wxWindow*)g_delayedFocus) == this )
1077         {
1078             wxLogTrace(_T("focus"),
1079                        _T("Setting focus from wxTLW::OnIdle() to %s(%s)"),
1080                        g_delayedFocus->GetClassInfo()->GetClassName(),
1081                        g_delayedFocus->GetLabel().c_str());
1082
1083             g_delayedFocus->SetFocus();
1084             g_delayedFocus = NULL;
1085         }
1086     }
1087
1088     wxWindow::OnInternalIdle();
1089
1090     // Synthetize activate events.
1091     if ( g_sendActivateEvent != -1 )
1092     {
1093         bool activate = g_sendActivateEvent != 0;
1094
1095         // if (!activate) wxPrintf( wxT("de") );
1096         // wxPrintf( wxT("activate\n") );
1097
1098         // do it only once
1099         g_sendActivateEvent = -1;
1100
1101         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1102     }
1103 }
1104
1105 // ----------------------------------------------------------------------------
1106 // frame title/icon
1107 // ----------------------------------------------------------------------------
1108
1109 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1110 {
1111     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1112
1113     if ( title == m_title )
1114         return;
1115
1116     m_title = title;
1117
1118     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1119 }
1120
1121 void wxTopLevelWindowGTK::SetIcon( const wxIcon &icon )
1122 {
1123     SetIcons( wxIconBundle( icon ) );
1124 }
1125
1126 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1127 {
1128     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1129
1130     wxTopLevelWindowBase::SetIcons( icons );
1131
1132     GList *list = NULL;
1133     size_t max = icons.m_icons.GetCount();
1134
1135     for (size_t i = 0; i < max; i++)
1136     {
1137         if (icons.m_icons[i].Ok())
1138         {
1139             list = g_list_prepend(list, icons.m_icons[i].GetPixbuf());
1140         }
1141     }
1142     gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1143     g_list_free(list);
1144 }
1145
1146 // ----------------------------------------------------------------------------
1147 // frame state: maximized/iconized/normal
1148 // ----------------------------------------------------------------------------
1149
1150 void wxTopLevelWindowGTK::Maximize(bool maximize)
1151 {
1152     if (maximize)
1153         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1154     else
1155         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1156 }
1157
1158 bool wxTopLevelWindowGTK::IsMaximized() const
1159 {
1160     if(!m_widget->window)
1161         return false;
1162
1163     return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1164 }
1165
1166 void wxTopLevelWindowGTK::Restore()
1167 {
1168     // "Present" seems similar enough to "restore"
1169     gtk_window_present( GTK_WINDOW( m_widget ) );
1170 }
1171
1172 void wxTopLevelWindowGTK::Iconize( bool iconize )
1173 {
1174     if (iconize)
1175         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1176     else
1177         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1178 }
1179
1180 bool wxTopLevelWindowGTK::IsIconized() const
1181 {
1182     return m_isIconized;
1183 }
1184
1185 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1186 {
1187     if ( iconize != m_isIconized )
1188     {
1189         m_isIconized = iconize;
1190         (void)SendIconizeEvent(iconize);
1191     }
1192 }
1193
1194 void wxTopLevelWindowGTK::AddGrab()
1195 {
1196     if (!m_grabbed)
1197     {
1198         m_grabbed = true;
1199         gtk_grab_add( m_widget );
1200         wxEventLoop().Run();
1201         gtk_grab_remove( m_widget );
1202     }
1203 }
1204
1205 void wxTopLevelWindowGTK::RemoveGrab()
1206 {
1207     if (m_grabbed)
1208     {
1209         gtk_main_quit();
1210         m_grabbed = false;
1211     }
1212 }
1213
1214
1215 // helper
1216 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1217 {
1218     if (window)
1219     {
1220         if (region.IsEmpty())
1221         {
1222             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1223         }
1224         else
1225         {
1226             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1227             return true;
1228         }
1229     }
1230     return false;
1231 }
1232
1233
1234 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1235 {
1236     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1237                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
1238
1239     GdkWindow *window = NULL;
1240     if (m_wxwindow)
1241     {
1242         window = GTK_PIZZA(m_wxwindow)->bin_window;
1243         do_shape_combine_region(window, region);
1244     }
1245     window = m_widget->window;
1246     return do_shape_combine_region(window, region);
1247 }
1248
1249 bool wxTopLevelWindowGTK::IsActive()
1250 {
1251     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1252 }
1253
1254 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1255 {
1256     bool new_hint_value = false;
1257
1258     // FIXME: This is a workaround to focus handling problem
1259     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle hasn't
1260     // yet been processed, and the internal focus system is not up to date yet.
1261     // wxYieldIfNeeded ensures the processing of it, but can have unwanted side effects - MR
1262     ::wxYieldIfNeeded();
1263
1264     if(m_urgency_hint >= 0)
1265         g_source_remove(m_urgency_hint);
1266
1267     m_urgency_hint = -2;
1268
1269     if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1270     {
1271         new_hint_value = true;
1272
1273         if (flags & wxUSER_ATTENTION_INFO)
1274         {
1275             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1276         } else {
1277             m_urgency_hint = -1;
1278         }
1279     }
1280
1281 #if GTK_CHECK_VERSION(2,7,0)
1282     if(!gtk_check_version(2,7,0))
1283         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1284     else
1285 #endif
1286         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1287 }
1288
1289 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1290 {
1291 #if defined(__WXGTK24__) || GTK_CHECK_VERSION(2,2,0)
1292     // Store which styles were changed
1293     long styleChanges = style ^ m_windowStyle;
1294 #endif
1295
1296     // Process wxWindow styles. This also updates the internal variable
1297     // Therefore m_windowStyle bits carry now the _new_ style values
1298     wxWindow::SetWindowStyleFlag(style);
1299
1300     // just return for now if widget does not exist yet
1301     if (!m_widget)
1302         return;
1303
1304 #ifdef __WXGTK24__
1305     if ( (styleChanges & wxSTAY_ON_TOP) && !gtk_check_version(2,4,0) )
1306         gtk_window_set_keep_above(GTK_WINDOW(m_widget), m_windowStyle & wxSTAY_ON_TOP);
1307 #endif // GTK+ 2.4
1308 #if GTK_CHECK_VERSION(2,2,0)
1309     if ( (styleChanges & wxFRAME_NO_TASKBAR) && !gtk_check_version(2,2,0) )
1310     {
1311         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), m_windowStyle & wxFRAME_NO_TASKBAR);
1312     }
1313 #endif // GTK+ 2.2
1314 }
1315
1316 #include <X11/Xlib.h>
1317
1318 /* Get the X Window between child and the root window.
1319    This should usually be the WM managed XID */
1320 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1321 {
1322     Window root, parent;
1323     Window* children;
1324     unsigned int nchildren;
1325
1326     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1327     XFree(children);
1328
1329     while (parent != root) {
1330         child = parent;
1331         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1332         XFree(children);
1333     }
1334
1335     return child;
1336 }
1337
1338 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1339 {
1340     if (!m_widget || !m_widget->window)
1341         return false;
1342
1343     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1344     // We need to get the X Window that has the root window as the immediate parent
1345     // and m_widget->window as a child. This should be the X Window that the WM manages and
1346     // from which the opacity property is checked from.
1347     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1348
1349     unsigned int opacity = alpha * 0x1010101;
1350
1351     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1352     if (alpha == 0xff)
1353         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1354     else
1355         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1356                         XA_CARDINAL, 32, PropModeReplace,
1357                         (unsigned char *) &opacity, 1L);
1358     XSync(dpy, False);
1359     return true;
1360 }
1361
1362 bool wxTopLevelWindowGTK::CanSetTransparent()
1363 {
1364 #if GTK_CHECK_VERSION(2,10,0)
1365     if (!gtk_check_version(2,10,0))
1366     {
1367         if (gtk_widget_is_composited (m_widget))
1368             return true;
1369     }
1370     else
1371 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1372     {
1373         return false;
1374     }
1375
1376 #if 0 // Don't be optimistic here for the sake of wxAUI
1377     int opcode, event, error;
1378     // Check for the existence of a RGBA visual instead?
1379     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1380                            "Composite", &opcode, &event, &error);
1381 #endif
1382 }