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 #include "wx/sysopt.h"
  37
  38 #include <gtk/gtk.h>
  39 #include <gdk/gdkx.h>
  40
  41 #include "wx/gtk/private/win_gtk.h"
  42
  43 #include "wx/unix/utilsx11.h"
  44
  45 // XA_CARDINAL
  46 #include <X11/Xatom.h>
  47
  48 #if wxUSE_LIBHILDON
  49     #include <hildon-widgets/hildon-program.h>
  50     #include <hildon-widgets/hildon-window.h>
  51 #endif // wxUSE_LIBHILDON
  52
  53 #if wxUSE_LIBHILDON2
  54     #include <hildon/hildon.h>
  55 #endif // wxUSE_LIBHILDON2
  56
  57 // ----------------------------------------------------------------------------
  58 // data
  59 // ----------------------------------------------------------------------------
  60
  61 // this is incremented while a modal dialog is shown
  62 int wxOpenModalDialogsCount = 0;
  63
  64 // the frame that is currently active (i.e. its child has focus). It is
  65 // used to generate wxActivateEvents
  66 static wxTopLevelWindowGTK *g_activeFrame = NULL;
  67 static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
  68
  69 // if we detect that the app has got/lost the focus, we set this variable to
  70 // either TRUE or FALSE and an activate event will be sent during the next
  71 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  72 // send any activate events at all
  73 static int g_sendActivateEvent = -1;
  74
  75 //-----------------------------------------------------------------------------
  76 // RequestUserAttention related functions
  77 //-----------------------------------------------------------------------------
  78
  79 extern "C" {
  80 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  81                                            gboolean setting)
  82 {
  83     wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
  84     GdkWindow *window = GTK_WIDGET(win)->window;
  85     XWMHints *wm_hints;
  86
  87     wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
  88
  89     if (!wm_hints)
  90         wm_hints = XAllocWMHints();
  91
  92     if (setting)
  93         wm_hints->flags |= XUrgencyHint;
  94     else
  95         wm_hints->flags &= ~XUrgencyHint;
  96
  97     XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
  98     XFree(wm_hints);
  99 }
 100
 101 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
 102 {
 103 #if GTK_CHECK_VERSION(2,7,0)
 104     if(!gtk_check_version(2,7,0))
 105         gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 106     else
 107 #endif
 108         wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 109
 110     win->m_urgency_hint = -2;
 111     return FALSE;
 112 }
 113 }
 114
 115 //-----------------------------------------------------------------------------
 116 // "focus_in_event"
 117 //-----------------------------------------------------------------------------
 118
 119 extern "C" {
 120 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 121                                          GdkEvent *WXUNUSED(event),
 122                                          wxTopLevelWindowGTK *win )
 123 {
 124     switch ( g_sendActivateEvent )
 125     {
 126         case -1:
 127             // we've got focus from outside, synthetize wxActivateEvent
 128             g_sendActivateEvent = 1;
 129             break;
 130
 131         case 0:
 132             // another our window just lost focus, it was already ours before
 133             // - don't send any wxActivateEvent
 134             g_sendActivateEvent = -1;
 135             break;
 136     }
 137
 138     g_activeFrame = win;
 139     g_lastActiveFrame = g_activeFrame;
 140
 141     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 142
 143     // MR: wxRequestUserAttention related block
 144     switch( win->m_urgency_hint )
 145     {
 146         default:
 147             g_source_remove( win->m_urgency_hint );
 148             // no break, fallthrough to remove hint too
 149         case -1:
 150 #if GTK_CHECK_VERSION(2,7,0)
 151             if(!gtk_check_version(2,7,0))
 152                 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 153             else
 154 #endif
 155             {
 156                 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 157             }
 158
 159             win->m_urgency_hint = -2;
 160             break;
 161
 162         case -2: break;
 163     }
 164
 165     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 166     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 167     event.SetEventObject(g_activeFrame);
 168     g_activeFrame->HandleWindowEvent(event);
 169
 170     return FALSE;
 171 }
 172 }
 173
 174 //-----------------------------------------------------------------------------
 175 // "focus_out_event"
 176 //-----------------------------------------------------------------------------
 177
 178 extern "C" {
 179 static
 180 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 181                                       GdkEventFocus *WXUNUSED(gdk_event),
 182                                       wxTopLevelWindowGTK * WXUNUSED(win))
 183 {
 184     // if the focus goes out of our app alltogether, OnIdle() will send
 185     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 186     // g_sendActivateEvent to -1
 187     g_sendActivateEvent = 0;
 188
 189     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 190
 191     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 192
 193     if (g_activeFrame)
 194     {
 195         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 196         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 197         event.SetEventObject(g_activeFrame);
 198         g_activeFrame->HandleWindowEvent(event);
 199
 200         g_activeFrame = NULL;
 201     }
 202
 203     return FALSE;
 204 }
 205 }
 206
 207 //-----------------------------------------------------------------------------
 208 // "size_allocate" from m_wxwindow
 209 //-----------------------------------------------------------------------------
 210
 211 extern "C" {
 212 static void
 213 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 214 {
 215     if (win->m_oldClientWidth  != alloc->width ||
 216         win->m_oldClientHeight != alloc->height)
 217     {
 218         win->m_oldClientWidth  = alloc->width;
 219         win->m_oldClientHeight = alloc->height;
 220
 221         wxSize size(win->m_widget->allocation.width,
 222                     win->m_widget->allocation.height);
 223         size += win->m_decorSize;
 224         win->m_width  = size.x;
 225         win->m_height = size.y;
 226
 227         if (!win->IsIconized())
 228         {
 229             wxSizeEvent event(size, win->GetId());
 230             event.SetEventObject(win);
 231             win->HandleWindowEvent(event);
 232         }
 233         // else the window is currently unmapped, don't generate size events
 234     }
 235 }
 236 }
 237
 238 // ----------------------------------------------------------------------------
 239 // "size_request"
 240 // ----------------------------------------------------------------------------
 241
 242 extern "C" {
 243 static
 244 void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
 245                                      GtkRequisition *requisition,
 246                                      wxTopLevelWindowGTK *win)
 247 {
 248     // we must return the size of the window without WM decorations, otherwise
 249     // GTK+ gets confused, so don't call just GetSize() here
 250     win->GTKDoGetSize(&requisition->width, &requisition->height);
 251 }
 252 }
 253
 254 //-----------------------------------------------------------------------------
 255 // "delete_event"
 256 //-----------------------------------------------------------------------------
 257
 258 extern "C" {
 259 static gboolean
 260 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 261                            GdkEvent *WXUNUSED(event),
 262                            wxTopLevelWindowGTK *win )
 263 {
 264     if (win->IsEnabled() &&
 265         (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 266          win->IsGrabbed()))
 267         win->Close();
 268
 269     return TRUE;
 270 }
 271 }
 272
 273 //-----------------------------------------------------------------------------
 274 // "configure_event"
 275 //-----------------------------------------------------------------------------
 276
 277 extern "C" {
 278 static gboolean
 279 gtk_frame_configure_callback( GtkWidget* widget,
 280                               GdkEventConfigure *WXUNUSED(event),
 281                               wxTopLevelWindowGTK *win )
 282 {
 283     if (!win->m_hasVMT || !win->IsShown())
 284         return FALSE;
 285
 286     wxPoint point;
 287     gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 288
 289     win->m_x = point.x;
 290     win->m_y = point.y;
 291     wxMoveEvent mevent(point, win->GetId());
 292     mevent.SetEventObject( win );
 293     win->HandleWindowEvent( mevent );
 294
 295     return FALSE;
 296 }
 297 }
 298
 299 //-----------------------------------------------------------------------------
 300 // "realize" from m_widget
 301 //-----------------------------------------------------------------------------
 302
 303 // we cannot the WM hints and icons before the widget has been realized,
 304 // so we do this directly after realization
 305
 306 extern "C" {
 307 static void
 308 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 309                              wxTopLevelWindowGTK *win )
 310 {
 311     gdk_window_set_decorations(win->m_widget->window,
 312                                (GdkWMDecoration)win->m_gdkDecor);
 313     gdk_window_set_functions(win->m_widget->window,
 314                                (GdkWMFunction)win->m_gdkFunc);
 315
 316     // GTK's shrinking/growing policy
 317     if ( !(win->m_gdkFunc & GDK_FUNC_RESIZE) )
 318         gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
 319     else
 320         gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 321
 322     const wxIconBundle& icons = win->GetIcons();
 323     if (icons.GetIconCount())
 324         win->SetIcons(icons);
 325
 326     if (win->HasFlag(wxFRAME_SHAPED))
 327         win->SetShape(win->m_shape); // it will really set the window shape now
 328 }
 329 }
 330
 331 //-----------------------------------------------------------------------------
 332 // "map_event" from m_widget
 333 //-----------------------------------------------------------------------------
 334
 335 extern "C" {
 336 static gboolean
 337 gtk_frame_map_callback( GtkWidget*,
 338                         GdkEvent * WXUNUSED(event),
 339                         wxTopLevelWindow *win )
 340 {
 341     const bool wasIconized = win->IsIconized();
 342     win->SetIconizeState(false);
 343     if (wasIconized)
 344     {
 345         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 346         // a size event must be generated, just in case GetClientSize() was
 347         // called while iconized. This specifically happens when restoring a
 348         // tlw that was "rolled up" with some WMs.
 349         // Queue a resize rather than sending size event directly to allow
 350         // children to be made visible first.
 351         win->m_oldClientWidth = 0;
 352         gtk_widget_queue_resize(win->m_wxwindow);
 353     }
 354     // it is possible for m_isShown to be false here, see bug #9909
 355     if (win->wxWindowBase::Show(true))
 356     {
 357         wxShowEvent eventShow(win->GetId(), true);
 358         eventShow.SetEventObject(win);
 359         win->GetEventHandler()->ProcessEvent(eventShow);
 360     }
 361
 362 #if GTK_CHECK_VERSION(2,6,0)
 363     if (!gtk_check_version(2,6,0))
 364     {
 365         // restore focus-on-map setting in case ShowWithoutActivating() was called
 366         gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
 367     }
 368 #endif // GTK+ 2.6+
 369
 370     return false;
 371 }
 372 }
 373
 374 //-----------------------------------------------------------------------------
 375 // "unmap_event" from m_widget
 376 //-----------------------------------------------------------------------------
 377
 378 extern "C" {
 379 static gboolean
 380 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
 381                           GdkEvent * WXUNUSED(event),
 382                           wxTopLevelWindow *win )
 383 {
 384     win->SetIconizeState(true);
 385     return false;
 386 }
 387 }
 388
 389 //-----------------------------------------------------------------------------
 390
 391 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 392 {
 393     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 394     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 395                         gdk_drawable_get_display(window), property);
 396     Atom type;
 397     int format;
 398     gulong nitems, bytes_after;
 399     guchar* data;
 400     Status status = XGetWindowProperty(
 401         gdk_x11_drawable_get_xdisplay(window),
 402         gdk_x11_drawable_get_xid(window),
 403         xproperty,
 404         0, 4, false, XA_CARDINAL,
 405         &type, &format, &nitems, &bytes_after, &data);
 406     const bool success = status == Success && data && nitems == 4;
 407     if (success)
 408     {
 409         long* p = (long*)data;
 410         if (left)   *left   = int(p[0]);
 411         if (right)  *right  = int(p[1]);
 412         if (top)    *top    = int(p[2]);
 413         if (bottom) *bottom = int(p[3]);
 414     }
 415     if (data)
 416         XFree(data);
 417     return success;
 418 }
 419
 420 //-----------------------------------------------------------------------------
 421 // "property_notify_event" from m_widget
 422 //-----------------------------------------------------------------------------
 423
 424 extern "C" {
 425 static gboolean property_notify_event(
 426     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 427 {
 428     // Watch for changes to _NET_FRAME_EXTENTS property
 429     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 430     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 431     {
 432         wxSize decorSize = win->m_decorSize;
 433         int left, right, top, bottom;
 434         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 435             decorSize.Set(left + right, top + bottom);
 436
 437         win->GTKUpdateDecorSize(decorSize);
 438     }
 439     return false;
 440 }
 441 }
 442
 443 // ----------------------------------------------------------------------------
 444 // wxTopLevelWindowGTK creation
 445 // ----------------------------------------------------------------------------
 446
 447 void wxTopLevelWindowGTK::Init()
 448 {
 449     m_mainWidget = NULL;
 450     m_isIconized = false;
 451     m_fsIsShowing = false;
 452     m_themeEnabled = true;
 453     m_gdkDecor =
 454     m_gdkFunc = 0;
 455     m_grabbed = false;
 456     m_deferShow = true;
 457     m_deferShowAllowed = true;
 458     m_updateDecorSize = true;
 459
 460     m_urgency_hint = -2;
 461 }
 462
 463 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 464                                   wxWindowID id,
 465                                   const wxString& title,
 466                                   const wxPoint& pos,
 467                                   const wxSize& sizeOrig,
 468                                   long style,
 469                                   const wxString &name )
 470 {
 471     // always create a frame of some reasonable, even if arbitrary, size (at
 472     // least for MSW compatibility)
 473     wxSize size = sizeOrig;
 474     size.x = WidthDefault(size.x);
 475     size.y = HeightDefault(size.y);
 476
 477     wxTopLevelWindows.Append( this );
 478
 479     if (!PreCreation( parent, pos, size ) ||
 480         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 481     {
 482         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 483         return false;
 484     }
 485
 486     m_title = title;
 487
 488     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 489     //     e.g. in wxTaskBarIconAreaGTK
 490     if (m_widget == NULL)
 491     {
 492 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 493         // we must create HildonWindow and not a normal GtkWindow as the latter
 494         // doesn't look correctly in Maemo environment and it must also be
 495         // registered with the main program object
 496         m_widget = hildon_window_new();
 497         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 498                                   HILDON_WINDOW(m_widget));
 499 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 500         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 501         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 502         {
 503             // Tell WM that this is a dialog window and make it center
 504             // on parent by default (this is what GtkDialog ctor does):
 505             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 506                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 507             gtk_window_set_position(GTK_WINDOW(m_widget),
 508                                     GTK_WIN_POS_CENTER_ON_PARENT);
 509         }
 510         else
 511         {
 512             if (style & wxFRAME_TOOL_WINDOW)
 513             {
 514                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 515                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 516
 517                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 518                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 519                 // For consistency between WMs and with Windows, we
 520                 // should set the NO_TASKBAR flag which will apply
 521                 // the set_skip_taskbar_hint if it is available,
 522                 // ensuring no taskbar entry will appear.
 523                 style |= wxFRAME_NO_TASKBAR;
 524             }
 525         }
 526 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 527
 528         g_object_ref(m_widget);
 529     }
 530
 531     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 532     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 533                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 534                        (style & wxFRAME_FLOAT_ON_PARENT)))
 535     {
 536         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 537                                       GTK_WINDOW(topParent->m_widget) );
 538     }
 539
 540     if (style & wxFRAME_NO_TASKBAR)
 541     {
 542         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 543     }
 544
 545     if (style & wxSTAY_ON_TOP)
 546     {
 547         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 548     }
 549     if (style & wxMAXIMIZE)
 550         gtk_window_maximize(GTK_WINDOW(m_widget));
 551
 552 #if 0
 553     if (!name.empty())
 554         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 555 #endif
 556
 557     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 558     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 559
 560     g_signal_connect (m_widget, "delete_event",
 561                       G_CALLBACK (gtk_frame_delete_callback), this);
 562
 563     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 564     m_mainWidget = gtk_vbox_new(false, 0);
 565     gtk_widget_show( m_mainWidget );
 566     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 567     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 568
 569     // m_wxwindow is the client area
 570     m_wxwindow = wxPizza::New();
 571     gtk_widget_show( m_wxwindow );
 572     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 573
 574     // we donm't allow the frame to get the focus as otherwise
 575     // the frame will grab it at arbitrary focus changes
 576     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 577
 578     if (m_parent) m_parent->AddChild( this );
 579
 580     g_signal_connect(m_wxwindow, "size_allocate",
 581         G_CALLBACK(size_allocate), this);
 582
 583     g_signal_connect (m_widget, "size_request",
 584                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 585     PostCreation();
 586
 587     if ((m_x != -1) || (m_y != -1))
 588         gtk_widget_set_uposition( m_widget, m_x, m_y );
 589
 590     //  we cannot set MWM hints and icons before the widget has
 591     //  been realized, so we do this directly after realization
 592     g_signal_connect (m_widget, "realize",
 593                       G_CALLBACK (gtk_frame_realized_callback), this);
 594
 595     // map and unmap for iconized state
 596     g_signal_connect (m_widget, "map_event",
 597                       G_CALLBACK (gtk_frame_map_callback), this);
 598     g_signal_connect (m_widget, "unmap_event",
 599                       G_CALLBACK (gtk_frame_unmap_callback), this);
 600
 601     // for wxMoveEvent
 602     g_signal_connect (m_widget, "configure_event",
 603                       G_CALLBACK (gtk_frame_configure_callback), this);
 604
 605     // activation
 606     g_signal_connect_after (m_widget, "focus_in_event",
 607                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 608     g_signal_connect_after (m_widget, "focus_out_event",
 609                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 610
 611     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 612     g_signal_connect(m_widget, "property_notify_event",
 613         G_CALLBACK(property_notify_event), this);
 614
 615     // translate wx decorations styles into Motif WM hints (they are recognized
 616     // by other WMs as well)
 617
 618     // always enable moving the window as we have no separate flag for enabling
 619     // it
 620     m_gdkFunc = GDK_FUNC_MOVE;
 621
 622     if ( style & wxCLOSE_BOX )
 623         m_gdkFunc |= GDK_FUNC_CLOSE;
 624
 625     if ( style & wxMINIMIZE_BOX )
 626         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 627
 628     if ( style & wxMAXIMIZE_BOX )
 629         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 630
 631     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 632     {
 633         m_gdkDecor = 0;
 634     }
 635     else // have border
 636     {
 637         m_gdkDecor = GDK_DECOR_BORDER;
 638
 639         if ( style & wxCAPTION )
 640             m_gdkDecor |= GDK_DECOR_TITLE;
 641
 642         if ( style & wxSYSTEM_MENU )
 643             m_gdkDecor |= GDK_DECOR_MENU;
 644
 645         if ( style & wxMINIMIZE_BOX )
 646             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 647
 648         if ( style & wxMAXIMIZE_BOX )
 649             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 650
 651         if ( style & wxRESIZE_BORDER )
 652         {
 653            m_gdkFunc |= GDK_FUNC_RESIZE;
 654            m_gdkDecor |= GDK_DECOR_RESIZEH;
 655         }
 656     }
 657
 658     m_decorSize = GetCachedDecorSize();
 659     int w, h;
 660     GTKDoGetSize(&w, &h);
 661     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 662
 663     return true;
 664 }
 665
 666 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 667 {
 668 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 669     // it can also be a (standard) dialog
 670     if ( HILDON_IS_WINDOW(m_widget) )
 671     {
 672         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 673                                      HILDON_WINDOW(m_widget));
 674     }
 675 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 676
 677     if (m_grabbed)
 678     {
 679         wxFAIL_MSG(wxT("Window still grabbed"));
 680         RemoveGrab();
 681     }
 682
 683     SendDestroyEvent();
 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 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 698 {
 699     if (enable)
 700         m_gdkFunc |= GDK_FUNC_CLOSE;
 701     else
 702         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 703
 704     if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
 705         gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
 706
 707     return true;
 708 }
 709
 710 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 711 {
 712     if (show == m_fsIsShowing)
 713         return false; // return what?
 714
 715     m_fsIsShowing = show;
 716
 717     wxX11FullScreenMethod method =
 718         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 719                                  (WXWindow)GDK_ROOT_WINDOW());
 720
 721     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 722     //     to switch to fullscreen, which is not always available. We must
 723     //     check if WM supports the spec and use legacy methods if it
 724     //     doesn't.
 725     if ( method == wxX11_FS_WMSPEC )
 726     {
 727         if (show)
 728             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 729         else
 730             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 731     }
 732     else
 733     {
 734         GdkWindow *window = m_widget->window;
 735
 736         if (show)
 737         {
 738             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 739             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 740
 741             int screen_width,screen_height;
 742             wxDisplaySize( &screen_width, &screen_height );
 743
 744             gint client_x, client_y, root_x, root_y;
 745             gint width, height;
 746
 747             m_fsSaveGdkFunc = m_gdkFunc;
 748             m_fsSaveGdkDecor = m_gdkDecor;
 749             m_gdkFunc = m_gdkDecor = 0;
 750             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 751             gdk_window_set_functions(window, (GdkWMFunction)0);
 752
 753             gdk_window_get_origin (m_widget->window, &root_x, &root_y);
 754             gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
 755                          &width, &height, NULL);
 756
 757             gdk_window_move_resize (m_widget->window, -client_x, -client_y,
 758                         screen_width + 1, screen_height + 1);
 759
 760             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 761                                     (WXWindow)GDK_ROOT_WINDOW(),
 762                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 763                                     show, &m_fsSaveFrame, method);
 764         }
 765         else // hide
 766         {
 767             m_gdkFunc = m_fsSaveGdkFunc;
 768             m_gdkDecor = m_fsSaveGdkDecor;
 769             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 770             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 771
 772             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 773                                     (WXWindow)GDK_ROOT_WINDOW(),
 774                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 775                                     show, &m_fsSaveFrame, method);
 776
 777             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 778                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 779         }
 780     }
 781
 782     // documented behaviour is to show the window if it's still hidden when
 783     // showing it full screen
 784     if (show)
 785         Show();
 786
 787     return true;
 788 }
 789
 790 // ----------------------------------------------------------------------------
 791 // overridden wxWindow methods
 792 // ----------------------------------------------------------------------------
 793
 794 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
 795 {
 796     wxCHECK_RET( m_widget, wxT("invalid frame") );
 797
 798     gtk_widget_queue_draw( m_widget );
 799
 800     if (m_wxwindow && m_wxwindow->window)
 801         gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
 802 }
 803
 804 bool wxTopLevelWindowGTK::Show( bool show )
 805 {
 806     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 807
 808     bool deferShow = show && !m_isShown && m_deferShow;
 809     if (deferShow)
 810     {
 811         deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
 812         if (deferShow)
 813         {
 814             deferShow = g_signal_handler_find(m_widget,
 815                 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
 816                 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
 817                 0, NULL, NULL, this) != 0;
 818         }
 819         GdkScreen* screen = NULL;
 820         if (deferShow)
 821         {
 822             screen = gtk_widget_get_screen(m_widget);
 823             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 824             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 825             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 826             // to m_decorSize, it breaks saving/restoring window size with
 827             // GetSize()/SetSize() because it makes window bigger between each
 828             // restore and save.
 829             m_updateDecorSize = deferShow;
 830         }
 831         if (deferShow)
 832         {
 833             // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
 834             const char* name = gdk_x11_screen_get_window_manager_name(screen);
 835             deferShow = strcmp(name, "Fluxbox") != 0;
 836             m_updateDecorSize = deferShow;
 837         }
 838
 839         m_deferShow = deferShow;
 840     }
 841     if (deferShow)
 842     {
 843         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 844         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 845         // notification is received, so correct frame extents are known.
 846         // This allows resizing m_widget to keep the overall size in sync with
 847         // what wxWidgets expects it to be without an obvious change in the
 848         // window size immediately after it becomes visible.
 849
 850         // Realize m_widget, so m_widget->window can be used. Realizing normally
 851         // causes the widget tree to be size_allocated, which generates size
 852         // events in the wrong order. However, the size_allocates will not be
 853         // done if the allocation is not the default (1,1).
 854         const int alloc_width = m_widget->allocation.width;
 855         if (alloc_width == 1)
 856             m_widget->allocation.width = 2;
 857         gtk_widget_realize(m_widget);
 858         if (alloc_width == 1)
 859             m_widget->allocation.width = 1;
 860
 861         // send _NET_REQUEST_FRAME_EXTENTS
 862         XClientMessageEvent xevent;
 863         memset(&xevent, 0, sizeof(xevent));
 864         xevent.type = ClientMessage;
 865         xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
 866         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 867             gdk_drawable_get_display(m_widget->window),
 868             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 869         xevent.format = 32;
 870         Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
 871         XSendEvent(display, DefaultRootWindow(display), false,
 872             SubstructureNotifyMask | SubstructureRedirectMask,
 873             (XEvent*)&xevent);
 874
 875         // defer calling gtk_widget_show()
 876         m_isShown = true;
 877         return true;
 878     }
 879
 880     if (show && !GTK_WIDGET_REALIZED(m_widget))
 881     {
 882         // size_allocate signals occur in reverse order (bottom to top).
 883         // Things work better if the initial wxSizeEvents are sent (from the
 884         // top down), before the initial size_allocate signals occur.
 885         wxSizeEvent event(GetSize(), GetId());
 886         event.SetEventObject(this);
 887         HandleWindowEvent(event);
 888     }
 889
 890     bool change = wxTopLevelWindowBase::Show(show);
 891
 892     if (change && !show)
 893     {
 894         // make sure window has a non-default position, so when it is shown
 895         // again, it won't be repositioned by WM as if it were a new window
 896         // Note that this must be done _after_ the window is hidden.
 897         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 898     }
 899
 900     return change;
 901 }
 902
 903 void wxTopLevelWindowGTK::ShowWithoutActivating()
 904 {
 905     if (!m_isShown)
 906     {
 907 #if GTK_CHECK_VERSION(2,6,0)
 908         if (!gtk_check_version(2,6,0))
 909             gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
 910 #endif // GTK+ 2.6+
 911
 912         Show(true);
 913     }
 914 }
 915
 916 void wxTopLevelWindowGTK::Raise()
 917 {
 918     gtk_window_present( GTK_WINDOW( m_widget ) );
 919 }
 920
 921 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 922 {
 923     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 924 }
 925
 926 // ----------------------------------------------------------------------------
 927 // window geometry
 928 // ----------------------------------------------------------------------------
 929
 930 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 931 {
 932     wxSize size(m_width, m_height);
 933     size -= m_decorSize;
 934     if (size.x < 0) size.x = 0;
 935     if (size.y < 0) size.y = 0;
 936 #if wxUSE_LIBHILDON2
 937     if (width) {
 938        if (size.x == 720)
 939                *width = 696;
 940        else
 941                *width = size.x;
 942     }
 943     if (height) {
 944        if (size.y == 420)
 945                *height = 396;
 946        else if (size.y == 270)
 947                *height = 246;
 948             else
 949                *height = size.y;
 950     }
 951 #else // wxUSE_LIBHILDON2
 952     if (width)  *width  = size.x;
 953     if (height) *height = size.y;
 954 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
 955 }
 956
 957 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 958 {
 959     wxCHECK_RET( m_widget, wxT("invalid frame") );
 960
 961     m_deferShowAllowed = true;
 962
 963     // deal with the position first
 964     int old_x = m_x;
 965     int old_y = m_y;
 966
 967     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 968     {
 969         // -1 means "use existing" unless the flag above is specified
 970         if ( x != -1 )
 971             m_x = x;
 972         if ( y != -1 )
 973             m_y = y;
 974     }
 975     else // wxSIZE_ALLOW_MINUS_ONE
 976     {
 977         m_x = x;
 978         m_y = y;
 979     }
 980
 981     if ( m_x != old_x || m_y != old_y )
 982     {
 983         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 984     }
 985
 986     const wxSize oldSize(m_width, m_height);
 987     if (width >= 0)
 988         m_width = width;
 989     if (height >= 0)
 990         m_height = height;
 991     ConstrainSize();
 992     if (m_width != oldSize.x || m_height != oldSize.y)
 993     {
 994         int w, h;
 995         GTKDoGetSize(&w, &h);
 996         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
 997
 998         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
 999         wxSizeEvent event(GetSize(), GetId());
1000         event.SetEventObject(this);
1001         HandleWindowEvent(event);
1002     }
1003 }
1004
1005 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1006 {
1007     wxTopLevelWindowBase::DoSetClientSize(width, height);
1008
1009     // Since client size is being explicitly set, don't change it later
1010     // Has to be done after calling base because it calls SetSize,
1011     // which sets this true
1012     m_deferShowAllowed = false;
1013 }
1014
1015 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1016 {
1017     wxASSERT_MSG(m_widget, wxT("invalid frame"));
1018
1019     if ( IsIconized() )
1020     {
1021         // for consistency with wxMSW, client area is supposed to be empty for
1022         // the iconized windows
1023         if ( width )
1024             *width = 0;
1025         if ( height )
1026             *height = 0;
1027     }
1028     else
1029     {
1030         GTKDoGetSize(width, height);
1031     }
1032 }
1033
1034 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1035                                           int maxW, int maxH,
1036                                           int incW, int incH )
1037 {
1038     wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH );
1039
1040     const wxSize minSize = GetMinSize();
1041     const wxSize maxSize = GetMaxSize();
1042     GdkGeometry hints;
1043     int hints_mask = 0;
1044     if (minSize.x > 0 || minSize.y > 0)
1045     {
1046         hints_mask |= GDK_HINT_MIN_SIZE;
1047         hints.min_width = minSize.x - m_decorSize.x;
1048         if (hints.min_width < 0)
1049             hints.min_width = 0;
1050         hints.min_height = minSize.y - m_decorSize.y;
1051         if (hints.min_height < 0)
1052             hints.min_height = 0;
1053     }
1054     if (maxSize.x > 0 || maxSize.y > 0)
1055     {
1056         hints_mask |= GDK_HINT_MAX_SIZE;
1057         hints.max_width = maxSize.x - m_decorSize.x;
1058         if (hints.max_width < 0)
1059             hints.max_width = INT_MAX;
1060         hints.max_height = maxSize.y - m_decorSize.y;
1061         if (hints.max_height < 0)
1062             hints.max_height = INT_MAX;
1063     }
1064     if (incW > 0 || incH > 0)
1065     {
1066         hints_mask |= GDK_HINT_RESIZE_INC;
1067         hints.width_inc  = incW > 0 ? incW : 1;
1068         hints.height_inc = incH > 0 ? incH : 1;
1069     }
1070     gtk_window_set_geometry_hints(
1071         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1072 }
1073
1074 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1075 {
1076     if (!IsMaximized() && !IsFullScreen())
1077         GetCachedDecorSize() = decorSize;
1078     if (m_updateDecorSize && m_decorSize != decorSize)
1079     {
1080         const wxSize diff = decorSize - m_decorSize;
1081         m_decorSize = decorSize;
1082         bool resized = false;
1083         if (m_deferShow)
1084         {
1085             // keep overall size unchanged by shrinking m_widget
1086             int w, h;
1087             GTKDoGetSize(&w, &h);
1088             // but not if size would be less than minimum, it won't take effect
1089             const wxSize minSize = GetMinSize();
1090             if (w >= minSize.x && h >= minSize.y)
1091             {
1092                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1093                 resized = true;
1094             }
1095         }
1096         if (!resized)
1097         {
1098             // adjust overall size to match change in frame extents
1099             m_width  += diff.x;
1100             m_height += diff.y;
1101             if (m_width  < 0) m_width  = 0;
1102             if (m_height < 0) m_height = 0;
1103             m_oldClientWidth = 0;
1104             gtk_widget_queue_resize(m_wxwindow);
1105         }
1106     }
1107     if (m_deferShow)
1108     {
1109         // gtk_widget_show() was deferred, do it now
1110         m_deferShow = false;
1111         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1112         wxSizeEvent sizeEvent(GetSize(), GetId());
1113         sizeEvent.SetEventObject(this);
1114         HandleWindowEvent(sizeEvent);
1115
1116         gtk_widget_show(m_widget);
1117
1118         wxShowEvent showEvent(GetId(), true);
1119         showEvent.SetEventObject(this);
1120         HandleWindowEvent(showEvent);
1121     }
1122 }
1123
1124 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1125 {
1126     static wxSize size[8];
1127
1128     int index = 0;
1129     // title bar
1130     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1131         index = 1;
1132     // border
1133     if (m_gdkDecor & GDK_DECOR_BORDER)
1134         index |= 2;
1135     // utility window decor can be different
1136     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1137         index |= 4;
1138     return size[index];
1139 }
1140
1141 void wxTopLevelWindowGTK::OnInternalIdle()
1142 {
1143     wxWindow::OnInternalIdle();
1144
1145     // Synthetize activate events.
1146     if ( g_sendActivateEvent != -1 )
1147     {
1148         bool activate = g_sendActivateEvent != 0;
1149
1150         // if (!activate) wxPrintf( wxT("de") );
1151         // wxPrintf( wxT("activate\n") );
1152
1153         // do it only once
1154         g_sendActivateEvent = -1;
1155
1156         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1157     }
1158 }
1159
1160 // ----------------------------------------------------------------------------
1161 // frame title/icon
1162 // ----------------------------------------------------------------------------
1163
1164 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1165 {
1166     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1167
1168     if ( title == m_title )
1169         return;
1170
1171     m_title = title;
1172
1173     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1174 }
1175
1176 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1177 {
1178     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1179
1180     wxTopLevelWindowBase::SetIcons( icons );
1181
1182     // Setting icons before window is realized can cause a GTK assertion if
1183     // another TLW is realized before this one, and it has this one as it's
1184     // transient parent. The life demo exibits this problem.
1185     if (GTK_WIDGET_REALIZED(m_widget))
1186     {
1187         GList* list = NULL;
1188         for (size_t i = icons.GetIconCount(); i--;)
1189             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1190         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1191         g_list_free(list);
1192     }
1193 }
1194
1195 // ----------------------------------------------------------------------------
1196 // frame state: maximized/iconized/normal
1197 // ----------------------------------------------------------------------------
1198
1199 void wxTopLevelWindowGTK::Maximize(bool maximize)
1200 {
1201     if (maximize)
1202         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1203     else
1204         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1205 }
1206
1207 bool wxTopLevelWindowGTK::IsMaximized() const
1208 {
1209     if(!m_widget->window)
1210         return false;
1211
1212     return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1213 }
1214
1215 void wxTopLevelWindowGTK::Restore()
1216 {
1217     // "Present" seems similar enough to "restore"
1218     gtk_window_present( GTK_WINDOW( m_widget ) );
1219 }
1220
1221 void wxTopLevelWindowGTK::Iconize( bool iconize )
1222 {
1223     if (iconize)
1224         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1225     else
1226         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1227 }
1228
1229 bool wxTopLevelWindowGTK::IsIconized() const
1230 {
1231     return m_isIconized;
1232 }
1233
1234 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1235 {
1236     if ( iconize != m_isIconized )
1237     {
1238         m_isIconized = iconize;
1239         (void)SendIconizeEvent(iconize);
1240     }
1241 }
1242
1243 void wxTopLevelWindowGTK::AddGrab()
1244 {
1245     if (!m_grabbed)
1246     {
1247         m_grabbed = true;
1248         gtk_grab_add( m_widget );
1249         wxGUIEventLoop().Run();
1250         gtk_grab_remove( m_widget );
1251     }
1252 }
1253
1254 void wxTopLevelWindowGTK::RemoveGrab()
1255 {
1256     if (m_grabbed)
1257     {
1258         gtk_main_quit();
1259         m_grabbed = false;
1260     }
1261 }
1262
1263
1264 // helper
1265 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1266 {
1267     if (window)
1268     {
1269         if (region.IsEmpty())
1270         {
1271             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1272         }
1273         else
1274         {
1275             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1276             return true;
1277         }
1278     }
1279     return false;
1280 }
1281
1282
1283 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1284 {
1285     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1286                  wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1287
1288     if ( GTK_WIDGET_REALIZED(m_widget) )
1289     {
1290         if ( m_wxwindow )
1291             do_shape_combine_region(m_wxwindow->window, region);
1292
1293         return do_shape_combine_region(m_widget->window, region);
1294     }
1295     else // not realized yet
1296     {
1297         // store the shape to set, it will be really set once we're realized
1298         m_shape = region;
1299
1300         // we don't know if we're going to succeed or fail, be optimistic by
1301         // default
1302         return true;
1303     }
1304 }
1305
1306 bool wxTopLevelWindowGTK::IsActive()
1307 {
1308     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1309 }
1310
1311 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1312 {
1313     bool new_hint_value = false;
1314
1315     // FIXME: This is a workaround to focus handling problem
1316     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1317     // hasn't yet been processed, and the internal focus system is not up to date yet.
1318     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1319     // won't have side effects) - MR
1320     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1321
1322     if(m_urgency_hint >= 0)
1323         g_source_remove(m_urgency_hint);
1324
1325     m_urgency_hint = -2;
1326
1327     if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1328     {
1329         new_hint_value = true;
1330
1331         if (flags & wxUSER_ATTENTION_INFO)
1332         {
1333             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1334         } else {
1335             m_urgency_hint = -1;
1336         }
1337     }
1338
1339 #if GTK_CHECK_VERSION(2,7,0)
1340     if(!gtk_check_version(2,7,0))
1341         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1342     else
1343 #endif
1344         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1345 }
1346
1347 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1348 {
1349     // Store which styles were changed
1350     long styleChanges = style ^ m_windowStyle;
1351
1352     // Process wxWindow styles. This also updates the internal variable
1353     // Therefore m_windowStyle bits carry now the _new_ style values
1354     wxWindow::SetWindowStyleFlag(style);
1355
1356     // just return for now if widget does not exist yet
1357     if (!m_widget)
1358         return;
1359
1360     if ( styleChanges & wxSTAY_ON_TOP )
1361     {
1362         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1363                                   m_windowStyle & wxSTAY_ON_TOP);
1364     }
1365
1366     if ( styleChanges & wxFRAME_NO_TASKBAR )
1367     {
1368         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1369                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1370     }
1371 }
1372
1373 /* Get the X Window between child and the root window.
1374    This should usually be the WM managed XID */
1375 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1376 {
1377     Window root, parent;
1378     Window* children;
1379     unsigned int nchildren;
1380
1381     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1382     XFree(children);
1383
1384     while (parent != root) {
1385         child = parent;
1386         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1387         XFree(children);
1388     }
1389
1390     return child;
1391 }
1392
1393 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1394 {
1395     if (!m_widget || !m_widget->window)
1396         return false;
1397
1398     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1399     // We need to get the X Window that has the root window as the immediate parent
1400     // and m_widget->window as a child. This should be the X Window that the WM manages and
1401     // from which the opacity property is checked from.
1402     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1403
1404
1405     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1406     if (alpha == 0xff)
1407         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1408     else
1409     {
1410         long opacity = alpha * 0x1010101L;
1411         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1412                         XA_CARDINAL, 32, PropModeReplace,
1413                         (unsigned char *) &opacity, 1L);
1414     }
1415     XSync(dpy, False);
1416     return true;
1417 }
1418
1419 bool wxTopLevelWindowGTK::CanSetTransparent()
1420 {
1421     // allow to override automatic detection as it's far from perfect
1422     const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1423     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1424     {
1425         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1426     }
1427
1428 #if GTK_CHECK_VERSION(2,10,0)
1429     if (!gtk_check_version(2,10,0))
1430     {
1431         return (gtk_widget_is_composited (m_widget));
1432     }
1433     else
1434 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1435     {
1436         return false;
1437     }
1438
1439 #if 0 // Don't be optimistic here for the sake of wxAUI
1440     int opcode, event, error;
1441     // Check for the existence of a RGBA visual instead?
1442     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1443                            "Composite", &opcode, &event, &error);
1444 #endif
1445 }