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     if (wasIconized)
 343     {
 344         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 345         // a size event must be generated, just in case GetClientSize() was
 346         // called while iconized. This specifically happens when restoring a
 347         // tlw that was "rolled up" with some WMs.
 348         // Queue a resize rather than sending size event directly to allow
 349         // children to be made visible first.
 350         win->m_oldClientWidth = 0;
 351         gtk_widget_queue_resize(win->m_wxwindow);
 352     }
 353     // it is possible for m_isShown to be false here, see bug #9909
 354     if (win->wxWindowBase::Show(true))
 355     {
 356         wxShowEvent eventShow(win->GetId(), true);
 357         eventShow.SetEventObject(win);
 358         win->GetEventHandler()->ProcessEvent(eventShow);
 359     }
 360
 361 #if GTK_CHECK_VERSION(2,6,0)
 362     if (!gtk_check_version(2,6,0))
 363     {
 364         // restore focus-on-map setting in case ShowWithoutActivating() was called
 365         gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
 366     }
 367 #endif // GTK+ 2.6+
 368
 369     return false;
 370 }
 371 }
 372
 373 //-----------------------------------------------------------------------------
 374 // "window-state-event" from m_widget
 375 //-----------------------------------------------------------------------------
 376
 377 extern "C" {
 378 static gboolean
 379 gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
 380                           GdkEventWindowState *event,
 381                           wxTopLevelWindow *win )
 382 {
 383     if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 384         win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
 385
 386     return false;
 387 }
 388 }
 389
 390 //-----------------------------------------------------------------------------
 391
 392 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 393 {
 394     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 395     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 396                         gdk_drawable_get_display(window), property);
 397     Atom type;
 398     int format;
 399     gulong nitems, bytes_after;
 400     guchar* data;
 401     Status status = XGetWindowProperty(
 402         gdk_x11_drawable_get_xdisplay(window),
 403         gdk_x11_drawable_get_xid(window),
 404         xproperty,
 405         0, 4, false, XA_CARDINAL,
 406         &type, &format, &nitems, &bytes_after, &data);
 407     const bool success = status == Success && data && nitems == 4;
 408     if (success)
 409     {
 410         long* p = (long*)data;
 411         if (left)   *left   = int(p[0]);
 412         if (right)  *right  = int(p[1]);
 413         if (top)    *top    = int(p[2]);
 414         if (bottom) *bottom = int(p[3]);
 415     }
 416     if (data)
 417         XFree(data);
 418     return success;
 419 }
 420
 421 //-----------------------------------------------------------------------------
 422 // "property_notify_event" from m_widget
 423 //-----------------------------------------------------------------------------
 424
 425 extern "C" {
 426 static gboolean property_notify_event(
 427     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 428 {
 429     // Watch for changes to _NET_FRAME_EXTENTS property
 430     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 431     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 432     {
 433         wxSize decorSize = win->m_decorSize;
 434         int left, right, top, bottom;
 435         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 436             decorSize.Set(left + right, top + bottom);
 437
 438         win->GTKUpdateDecorSize(decorSize);
 439     }
 440     return false;
 441 }
 442 }
 443
 444 // ----------------------------------------------------------------------------
 445 // wxTopLevelWindowGTK creation
 446 // ----------------------------------------------------------------------------
 447
 448 void wxTopLevelWindowGTK::Init()
 449 {
 450     m_mainWidget = NULL;
 451     m_isIconized = false;
 452     m_fsIsShowing = false;
 453     m_themeEnabled = true;
 454     m_gdkDecor =
 455     m_gdkFunc = 0;
 456     m_grabbed = false;
 457     m_deferShow = true;
 458     m_deferShowAllowed = true;
 459     m_updateDecorSize = true;
 460
 461     m_urgency_hint = -2;
 462 }
 463
 464 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 465                                   wxWindowID id,
 466                                   const wxString& title,
 467                                   const wxPoint& pos,
 468                                   const wxSize& sizeOrig,
 469                                   long style,
 470                                   const wxString &name )
 471 {
 472     // always create a frame of some reasonable, even if arbitrary, size (at
 473     // least for MSW compatibility)
 474     wxSize size = sizeOrig;
 475     size.x = WidthDefault(size.x);
 476     size.y = HeightDefault(size.y);
 477
 478     wxTopLevelWindows.Append( this );
 479
 480     if (!PreCreation( parent, pos, size ) ||
 481         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 482     {
 483         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 484         return false;
 485     }
 486
 487     m_title = title;
 488
 489     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 490     //     e.g. in wxTaskBarIconAreaGTK
 491     if (m_widget == NULL)
 492     {
 493 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 494         // we must create HildonWindow and not a normal GtkWindow as the latter
 495         // doesn't look correctly in Maemo environment and it must also be
 496         // registered with the main program object
 497         m_widget = hildon_window_new();
 498         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 499                                   HILDON_WINDOW(m_widget));
 500 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 501         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 502         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 503         {
 504             // Tell WM that this is a dialog window and make it center
 505             // on parent by default (this is what GtkDialog ctor does):
 506             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 507                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 508             gtk_window_set_position(GTK_WINDOW(m_widget),
 509                                     GTK_WIN_POS_CENTER_ON_PARENT);
 510         }
 511         else
 512         {
 513             if (style & wxFRAME_TOOL_WINDOW)
 514             {
 515                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 516                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 517
 518                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 519                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 520                 // For consistency between WMs and with Windows, we
 521                 // should set the NO_TASKBAR flag which will apply
 522                 // the set_skip_taskbar_hint if it is available,
 523                 // ensuring no taskbar entry will appear.
 524                 style |= wxFRAME_NO_TASKBAR;
 525             }
 526         }
 527 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 528
 529         g_object_ref(m_widget);
 530     }
 531
 532     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 533     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 534                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 535                        (style & wxFRAME_FLOAT_ON_PARENT)))
 536     {
 537         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 538                                       GTK_WINDOW(topParent->m_widget) );
 539     }
 540
 541     if (style & wxFRAME_NO_TASKBAR)
 542     {
 543         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 544     }
 545
 546     if (style & wxSTAY_ON_TOP)
 547     {
 548         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 549     }
 550     if (style & wxMAXIMIZE)
 551         gtk_window_maximize(GTK_WINDOW(m_widget));
 552
 553 #if 0
 554     if (!name.empty())
 555         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 556 #endif
 557
 558     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 559     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 560
 561     g_signal_connect (m_widget, "delete_event",
 562                       G_CALLBACK (gtk_frame_delete_callback), this);
 563
 564     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 565     m_mainWidget = gtk_vbox_new(false, 0);
 566     gtk_widget_show( m_mainWidget );
 567     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 568     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 569
 570     // m_wxwindow is the client area
 571     m_wxwindow = wxPizza::New();
 572     gtk_widget_show( m_wxwindow );
 573     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 574
 575     // we donm't allow the frame to get the focus as otherwise
 576     // the frame will grab it at arbitrary focus changes
 577     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 578
 579     if (m_parent) m_parent->AddChild( this );
 580
 581     g_signal_connect(m_wxwindow, "size_allocate",
 582         G_CALLBACK(size_allocate), this);
 583
 584     g_signal_connect (m_widget, "size_request",
 585                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 586     PostCreation();
 587
 588     if ((m_x != -1) || (m_y != -1))
 589         gtk_widget_set_uposition( m_widget, m_x, m_y );
 590
 591     //  we cannot set MWM hints and icons before the widget has
 592     //  been realized, so we do this directly after realization
 593     g_signal_connect (m_widget, "realize",
 594                       G_CALLBACK (gtk_frame_realized_callback), this);
 595
 596     // for some reported size corrections
 597     g_signal_connect (m_widget, "map_event",
 598                       G_CALLBACK (gtk_frame_map_callback), this);
 599
 600     // for iconized state
 601     g_signal_connect (m_widget, "window_state_event",
 602                       G_CALLBACK (gtk_frame_window_state_callback), this);
 603
 604
 605     // for wxMoveEvent
 606     g_signal_connect (m_widget, "configure_event",
 607                       G_CALLBACK (gtk_frame_configure_callback), this);
 608
 609     // activation
 610     g_signal_connect_after (m_widget, "focus_in_event",
 611                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 612     g_signal_connect_after (m_widget, "focus_out_event",
 613                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 614
 615     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 616     g_signal_connect(m_widget, "property_notify_event",
 617         G_CALLBACK(property_notify_event), this);
 618
 619     // translate wx decorations styles into Motif WM hints (they are recognized
 620     // by other WMs as well)
 621
 622     // always enable moving the window as we have no separate flag for enabling
 623     // it
 624     m_gdkFunc = GDK_FUNC_MOVE;
 625
 626     if ( style & wxCLOSE_BOX )
 627         m_gdkFunc |= GDK_FUNC_CLOSE;
 628
 629     if ( style & wxMINIMIZE_BOX )
 630         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 631
 632     if ( style & wxMAXIMIZE_BOX )
 633         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 634
 635     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 636     {
 637         m_gdkDecor = 0;
 638     }
 639     else // have border
 640     {
 641         m_gdkDecor = GDK_DECOR_BORDER;
 642
 643         if ( style & wxCAPTION )
 644             m_gdkDecor |= GDK_DECOR_TITLE;
 645
 646         if ( style & wxSYSTEM_MENU )
 647             m_gdkDecor |= GDK_DECOR_MENU;
 648
 649         if ( style & wxMINIMIZE_BOX )
 650             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 651
 652         if ( style & wxMAXIMIZE_BOX )
 653             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 654
 655         if ( style & wxRESIZE_BORDER )
 656         {
 657            m_gdkFunc |= GDK_FUNC_RESIZE;
 658            m_gdkDecor |= GDK_DECOR_RESIZEH;
 659         }
 660     }
 661
 662     m_decorSize = GetCachedDecorSize();
 663     int w, h;
 664     GTKDoGetSize(&w, &h);
 665     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 666
 667     return true;
 668 }
 669
 670 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 671 {
 672 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 673     // it can also be a (standard) dialog
 674     if ( HILDON_IS_WINDOW(m_widget) )
 675     {
 676         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 677                                      HILDON_WINDOW(m_widget));
 678     }
 679 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 680
 681     if (m_grabbed)
 682     {
 683         wxFAIL_MSG(wxT("Window still grabbed"));
 684         RemoveGrab();
 685     }
 686
 687     SendDestroyEvent();
 688
 689     // it may also be GtkScrolledWindow in the case of an MDI child
 690     if (GTK_IS_WINDOW(m_widget))
 691     {
 692         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 693     }
 694
 695     if (g_activeFrame == this)
 696         g_activeFrame = NULL;
 697     if (g_lastActiveFrame == this)
 698         g_lastActiveFrame = NULL;
 699 }
 700
 701 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 702 {
 703     if (enable)
 704         m_gdkFunc |= GDK_FUNC_CLOSE;
 705     else
 706         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 707
 708     if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
 709         gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
 710
 711     return true;
 712 }
 713
 714 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 715 {
 716     if (show == m_fsIsShowing)
 717         return false; // return what?
 718
 719     m_fsIsShowing = show;
 720
 721     wxX11FullScreenMethod method =
 722         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 723                                  (WXWindow)GDK_ROOT_WINDOW());
 724
 725     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 726     //     to switch to fullscreen, which is not always available. We must
 727     //     check if WM supports the spec and use legacy methods if it
 728     //     doesn't.
 729     if ( method == wxX11_FS_WMSPEC )
 730     {
 731         if (show)
 732             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 733         else
 734             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 735     }
 736     else
 737     {
 738         GdkWindow *window = m_widget->window;
 739
 740         if (show)
 741         {
 742             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 743             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 744
 745             int screen_width,screen_height;
 746             wxDisplaySize( &screen_width, &screen_height );
 747
 748             gint client_x, client_y, root_x, root_y;
 749             gint width, height;
 750
 751             m_fsSaveGdkFunc = m_gdkFunc;
 752             m_fsSaveGdkDecor = m_gdkDecor;
 753             m_gdkFunc = m_gdkDecor = 0;
 754             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 755             gdk_window_set_functions(window, (GdkWMFunction)0);
 756
 757             gdk_window_get_origin (m_widget->window, &root_x, &root_y);
 758             gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
 759                          &width, &height, NULL);
 760
 761             gdk_window_move_resize (m_widget->window, -client_x, -client_y,
 762                         screen_width + 1, screen_height + 1);
 763
 764             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 765                                     (WXWindow)GDK_ROOT_WINDOW(),
 766                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 767                                     show, &m_fsSaveFrame, method);
 768         }
 769         else // hide
 770         {
 771             m_gdkFunc = m_fsSaveGdkFunc;
 772             m_gdkDecor = m_fsSaveGdkDecor;
 773             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 774             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 775
 776             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 777                                     (WXWindow)GDK_ROOT_WINDOW(),
 778                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 779                                     show, &m_fsSaveFrame, method);
 780
 781             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 782                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 783         }
 784     }
 785
 786     // documented behaviour is to show the window if it's still hidden when
 787     // showing it full screen
 788     if (show)
 789         Show();
 790
 791     return true;
 792 }
 793
 794 // ----------------------------------------------------------------------------
 795 // overridden wxWindow methods
 796 // ----------------------------------------------------------------------------
 797
 798 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
 799 {
 800     wxCHECK_RET( m_widget, wxT("invalid frame") );
 801
 802     gtk_widget_queue_draw( m_widget );
 803
 804     if (m_wxwindow && m_wxwindow->window)
 805         gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
 806 }
 807
 808 bool wxTopLevelWindowGTK::Show( bool show )
 809 {
 810     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 811
 812     bool deferShow = show && !m_isShown && m_deferShow;
 813     if (deferShow)
 814     {
 815         deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
 816         if (deferShow)
 817         {
 818             deferShow = g_signal_handler_find(m_widget,
 819                 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
 820                 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
 821                 0, NULL, NULL, this) != 0;
 822         }
 823         GdkScreen* screen = NULL;
 824         if (deferShow)
 825         {
 826             screen = gtk_widget_get_screen(m_widget);
 827             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 828             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 829             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 830             // to m_decorSize, it breaks saving/restoring window size with
 831             // GetSize()/SetSize() because it makes window bigger between each
 832             // restore and save.
 833             m_updateDecorSize = deferShow;
 834         }
 835         if (deferShow)
 836         {
 837             // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
 838             const char* name = gdk_x11_screen_get_window_manager_name(screen);
 839             deferShow = strcmp(name, "Fluxbox") != 0;
 840             m_updateDecorSize = deferShow;
 841         }
 842
 843         m_deferShow = deferShow;
 844     }
 845     if (deferShow)
 846     {
 847         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 848         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 849         // notification is received, so correct frame extents are known.
 850         // This allows resizing m_widget to keep the overall size in sync with
 851         // what wxWidgets expects it to be without an obvious change in the
 852         // window size immediately after it becomes visible.
 853
 854         // Realize m_widget, so m_widget->window can be used. Realizing normally
 855         // causes the widget tree to be size_allocated, which generates size
 856         // events in the wrong order. However, the size_allocates will not be
 857         // done if the allocation is not the default (1,1).
 858         const int alloc_width = m_widget->allocation.width;
 859         if (alloc_width == 1)
 860             m_widget->allocation.width = 2;
 861         gtk_widget_realize(m_widget);
 862         if (alloc_width == 1)
 863             m_widget->allocation.width = 1;
 864
 865         // send _NET_REQUEST_FRAME_EXTENTS
 866         XClientMessageEvent xevent;
 867         memset(&xevent, 0, sizeof(xevent));
 868         xevent.type = ClientMessage;
 869         xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
 870         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 871             gdk_drawable_get_display(m_widget->window),
 872             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 873         xevent.format = 32;
 874         Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
 875         XSendEvent(display, DefaultRootWindow(display), false,
 876             SubstructureNotifyMask | SubstructureRedirectMask,
 877             (XEvent*)&xevent);
 878
 879         // defer calling gtk_widget_show()
 880         m_isShown = true;
 881         return true;
 882     }
 883
 884     if (show && !GTK_WIDGET_REALIZED(m_widget))
 885     {
 886         // size_allocate signals occur in reverse order (bottom to top).
 887         // Things work better if the initial wxSizeEvents are sent (from the
 888         // top down), before the initial size_allocate signals occur.
 889         wxSizeEvent event(GetSize(), GetId());
 890         event.SetEventObject(this);
 891         HandleWindowEvent(event);
 892     }
 893
 894     bool change = base_type::Show(show);
 895
 896     if (change && !show)
 897     {
 898         // make sure window has a non-default position, so when it is shown
 899         // again, it won't be repositioned by WM as if it were a new window
 900         // Note that this must be done _after_ the window is hidden.
 901         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 902     }
 903
 904     return change;
 905 }
 906
 907 void wxTopLevelWindowGTK::ShowWithoutActivating()
 908 {
 909     if (!m_isShown)
 910     {
 911 #if GTK_CHECK_VERSION(2,6,0)
 912         if (!gtk_check_version(2,6,0))
 913             gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
 914 #endif // GTK+ 2.6+
 915
 916         Show(true);
 917     }
 918 }
 919
 920 void wxTopLevelWindowGTK::Raise()
 921 {
 922     gtk_window_present( GTK_WINDOW( m_widget ) );
 923 }
 924
 925 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 926 {
 927     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 928 }
 929
 930 // ----------------------------------------------------------------------------
 931 // window geometry
 932 // ----------------------------------------------------------------------------
 933
 934 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 935 {
 936     wxSize size(m_width, m_height);
 937     size -= m_decorSize;
 938     if (size.x < 0) size.x = 0;
 939     if (size.y < 0) size.y = 0;
 940 #if wxUSE_LIBHILDON2
 941     if (width) {
 942        if (size.x == 720)
 943                *width = 696;
 944        else
 945                *width = size.x;
 946     }
 947     if (height) {
 948        if (size.y == 420)
 949                *height = 396;
 950        else if (size.y == 270)
 951                *height = 246;
 952             else
 953                *height = size.y;
 954     }
 955 #else // wxUSE_LIBHILDON2
 956     if (width)  *width  = size.x;
 957     if (height) *height = size.y;
 958 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
 959 }
 960
 961 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 962 {
 963     wxCHECK_RET( m_widget, wxT("invalid frame") );
 964
 965     m_deferShowAllowed = true;
 966
 967     // deal with the position first
 968     int old_x = m_x;
 969     int old_y = m_y;
 970
 971     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 972     {
 973         // -1 means "use existing" unless the flag above is specified
 974         if ( x != -1 )
 975             m_x = x;
 976         if ( y != -1 )
 977             m_y = y;
 978     }
 979     else // wxSIZE_ALLOW_MINUS_ONE
 980     {
 981         m_x = x;
 982         m_y = y;
 983     }
 984
 985     if ( m_x != old_x || m_y != old_y )
 986     {
 987         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 988     }
 989
 990     const wxSize oldSize(m_width, m_height);
 991     if (width >= 0)
 992         m_width = width;
 993     if (height >= 0)
 994         m_height = height;
 995     ConstrainSize();
 996     if (m_width != oldSize.x || m_height != oldSize.y)
 997     {
 998         int w, h;
 999         GTKDoGetSize(&w, &h);
1000         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1001
1002         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1003         wxSizeEvent event(GetSize(), GetId());
1004         event.SetEventObject(this);
1005         HandleWindowEvent(event);
1006     }
1007 }
1008
1009 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1010 {
1011     base_type::DoSetClientSize(width, height);
1012
1013     // Since client size is being explicitly set, don't change it later
1014     // Has to be done after calling base because it calls SetSize,
1015     // which sets this true
1016     m_deferShowAllowed = false;
1017 }
1018
1019 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1020 {
1021     wxASSERT_MSG(m_widget, wxT("invalid frame"));
1022
1023     if ( IsIconized() )
1024     {
1025         // for consistency with wxMSW, client area is supposed to be empty for
1026         // the iconized windows
1027         if ( width )
1028             *width = 0;
1029         if ( height )
1030             *height = 0;
1031     }
1032     else
1033     {
1034         GTKDoGetSize(width, height);
1035     }
1036 }
1037
1038 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1039                                           int maxW, int maxH,
1040                                           int incW, int incH )
1041 {
1042     base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
1043
1044     const wxSize minSize = GetMinSize();
1045     const wxSize maxSize = GetMaxSize();
1046     GdkGeometry hints;
1047     int hints_mask = 0;
1048     if (minSize.x > 0 || minSize.y > 0)
1049     {
1050         hints_mask |= GDK_HINT_MIN_SIZE;
1051         hints.min_width = minSize.x - m_decorSize.x;
1052         if (hints.min_width < 0)
1053             hints.min_width = 0;
1054         hints.min_height = minSize.y - m_decorSize.y;
1055         if (hints.min_height < 0)
1056             hints.min_height = 0;
1057     }
1058     if (maxSize.x > 0 || maxSize.y > 0)
1059     {
1060         hints_mask |= GDK_HINT_MAX_SIZE;
1061         hints.max_width = maxSize.x - m_decorSize.x;
1062         if (hints.max_width < 0)
1063             hints.max_width = INT_MAX;
1064         hints.max_height = maxSize.y - m_decorSize.y;
1065         if (hints.max_height < 0)
1066             hints.max_height = INT_MAX;
1067     }
1068     if (incW > 0 || incH > 0)
1069     {
1070         hints_mask |= GDK_HINT_RESIZE_INC;
1071         hints.width_inc  = incW > 0 ? incW : 1;
1072         hints.height_inc = incH > 0 ? incH : 1;
1073     }
1074     gtk_window_set_geometry_hints(
1075         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1076 }
1077
1078 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1079 {
1080     if (!IsMaximized() && !IsFullScreen())
1081         GetCachedDecorSize() = decorSize;
1082     if (m_updateDecorSize && m_decorSize != decorSize)
1083     {
1084         const wxSize diff = decorSize - m_decorSize;
1085         m_decorSize = decorSize;
1086         bool resized = false;
1087         if (m_deferShow)
1088         {
1089             // keep overall size unchanged by shrinking m_widget
1090             int w, h;
1091             GTKDoGetSize(&w, &h);
1092             // but not if size would be less than minimum, it won't take effect
1093             const wxSize minSize = GetMinSize();
1094             if (w >= minSize.x && h >= minSize.y)
1095             {
1096                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1097                 resized = true;
1098             }
1099         }
1100         if (!resized)
1101         {
1102             // adjust overall size to match change in frame extents
1103             m_width  += diff.x;
1104             m_height += diff.y;
1105             if (m_width  < 0) m_width  = 0;
1106             if (m_height < 0) m_height = 0;
1107             m_oldClientWidth = 0;
1108             gtk_widget_queue_resize(m_wxwindow);
1109         }
1110     }
1111     if (m_deferShow)
1112     {
1113         // gtk_widget_show() was deferred, do it now
1114         m_deferShow = false;
1115         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1116         wxSizeEvent sizeEvent(GetSize(), GetId());
1117         sizeEvent.SetEventObject(this);
1118         HandleWindowEvent(sizeEvent);
1119
1120         gtk_widget_show(m_widget);
1121
1122         wxShowEvent showEvent(GetId(), true);
1123         showEvent.SetEventObject(this);
1124         HandleWindowEvent(showEvent);
1125     }
1126 }
1127
1128 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1129 {
1130     static wxSize size[8];
1131
1132     int index = 0;
1133     // title bar
1134     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1135         index = 1;
1136     // border
1137     if (m_gdkDecor & GDK_DECOR_BORDER)
1138         index |= 2;
1139     // utility window decor can be different
1140     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1141         index |= 4;
1142     return size[index];
1143 }
1144
1145 void wxTopLevelWindowGTK::OnInternalIdle()
1146 {
1147     wxTopLevelWindowBase::OnInternalIdle();
1148
1149     // Synthetize activate events.
1150     if ( g_sendActivateEvent != -1 )
1151     {
1152         bool activate = g_sendActivateEvent != 0;
1153
1154         // if (!activate) wxPrintf( wxT("de") );
1155         // wxPrintf( wxT("activate\n") );
1156
1157         // do it only once
1158         g_sendActivateEvent = -1;
1159
1160         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1161     }
1162 }
1163
1164 // ----------------------------------------------------------------------------
1165 // frame title/icon
1166 // ----------------------------------------------------------------------------
1167
1168 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1169 {
1170     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1171
1172     if ( title == m_title )
1173         return;
1174
1175     m_title = title;
1176
1177     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1178 }
1179
1180 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1181 {
1182     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1183
1184     base_type::SetIcons(icons);
1185
1186     // Setting icons before window is realized can cause a GTK assertion if
1187     // another TLW is realized before this one, and it has this one as it's
1188     // transient parent. The life demo exibits this problem.
1189     if (GTK_WIDGET_REALIZED(m_widget))
1190     {
1191         GList* list = NULL;
1192         for (size_t i = icons.GetIconCount(); i--;)
1193             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1194         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1195         g_list_free(list);
1196     }
1197 }
1198
1199 // ----------------------------------------------------------------------------
1200 // frame state: maximized/iconized/normal
1201 // ----------------------------------------------------------------------------
1202
1203 void wxTopLevelWindowGTK::Maximize(bool maximize)
1204 {
1205     if (maximize)
1206         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1207     else
1208         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1209 }
1210
1211 bool wxTopLevelWindowGTK::IsMaximized() const
1212 {
1213     if(!m_widget->window)
1214         return false;
1215
1216     return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1217 }
1218
1219 void wxTopLevelWindowGTK::Restore()
1220 {
1221     // "Present" seems similar enough to "restore"
1222     gtk_window_present( GTK_WINDOW( m_widget ) );
1223 }
1224
1225 void wxTopLevelWindowGTK::Iconize( bool iconize )
1226 {
1227     if (iconize)
1228         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1229     else
1230         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1231 }
1232
1233 bool wxTopLevelWindowGTK::IsIconized() const
1234 {
1235     return m_isIconized;
1236 }
1237
1238 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1239 {
1240     if ( iconize != m_isIconized )
1241     {
1242         m_isIconized = iconize;
1243         (void)SendIconizeEvent(iconize);
1244     }
1245 }
1246
1247 void wxTopLevelWindowGTK::AddGrab()
1248 {
1249     if (!m_grabbed)
1250     {
1251         m_grabbed = true;
1252         gtk_grab_add( m_widget );
1253         wxGUIEventLoop().Run();
1254         gtk_grab_remove( m_widget );
1255     }
1256 }
1257
1258 void wxTopLevelWindowGTK::RemoveGrab()
1259 {
1260     if (m_grabbed)
1261     {
1262         gtk_main_quit();
1263         m_grabbed = false;
1264     }
1265 }
1266
1267
1268 // helper
1269 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1270 {
1271     if (window)
1272     {
1273         if (region.IsEmpty())
1274         {
1275             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1276         }
1277         else
1278         {
1279             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1280             return true;
1281         }
1282     }
1283     return false;
1284 }
1285
1286
1287 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1288 {
1289     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1290                  wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1291
1292     if ( GTK_WIDGET_REALIZED(m_widget) )
1293     {
1294         if ( m_wxwindow )
1295             do_shape_combine_region(m_wxwindow->window, region);
1296
1297         return do_shape_combine_region(m_widget->window, region);
1298     }
1299     else // not realized yet
1300     {
1301         // store the shape to set, it will be really set once we're realized
1302         m_shape = region;
1303
1304         // we don't know if we're going to succeed or fail, be optimistic by
1305         // default
1306         return true;
1307     }
1308 }
1309
1310 bool wxTopLevelWindowGTK::IsActive()
1311 {
1312     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1313 }
1314
1315 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1316 {
1317     bool new_hint_value = false;
1318
1319     // FIXME: This is a workaround to focus handling problem
1320     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1321     // hasn't yet been processed, and the internal focus system is not up to date yet.
1322     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1323     // won't have side effects) - MR
1324     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1325
1326     if(m_urgency_hint >= 0)
1327         g_source_remove(m_urgency_hint);
1328
1329     m_urgency_hint = -2;
1330
1331     if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1332     {
1333         new_hint_value = true;
1334
1335         if (flags & wxUSER_ATTENTION_INFO)
1336         {
1337             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1338         } else {
1339             m_urgency_hint = -1;
1340         }
1341     }
1342
1343 #if GTK_CHECK_VERSION(2,7,0)
1344     if(!gtk_check_version(2,7,0))
1345         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1346     else
1347 #endif
1348         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1349 }
1350
1351 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1352 {
1353     // Store which styles were changed
1354     long styleChanges = style ^ m_windowStyle;
1355
1356     // Process wxWindow styles. This also updates the internal variable
1357     // Therefore m_windowStyle bits carry now the _new_ style values
1358     wxWindow::SetWindowStyleFlag(style);
1359
1360     // just return for now if widget does not exist yet
1361     if (!m_widget)
1362         return;
1363
1364     if ( styleChanges & wxSTAY_ON_TOP )
1365     {
1366         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1367                                   m_windowStyle & wxSTAY_ON_TOP);
1368     }
1369
1370     if ( styleChanges & wxFRAME_NO_TASKBAR )
1371     {
1372         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1373                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1374     }
1375 }
1376
1377 /* Get the X Window between child and the root window.
1378    This should usually be the WM managed XID */
1379 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1380 {
1381     Window root, parent;
1382     Window* children;
1383     unsigned int nchildren;
1384
1385     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1386     XFree(children);
1387
1388     while (parent != root) {
1389         child = parent;
1390         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1391         XFree(children);
1392     }
1393
1394     return child;
1395 }
1396
1397 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1398 {
1399     if (!m_widget || !m_widget->window)
1400         return false;
1401
1402     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1403     // We need to get the X Window that has the root window as the immediate parent
1404     // and m_widget->window as a child. This should be the X Window that the WM manages and
1405     // from which the opacity property is checked from.
1406     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1407
1408
1409     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1410     if (alpha == 0xff)
1411         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1412     else
1413     {
1414         long opacity = alpha * 0x1010101L;
1415         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1416                         XA_CARDINAL, 32, PropModeReplace,
1417                         (unsigned char *) &opacity, 1L);
1418     }
1419     XSync(dpy, False);
1420     return true;
1421 }
1422
1423 bool wxTopLevelWindowGTK::CanSetTransparent()
1424 {
1425     // allow to override automatic detection as it's far from perfect
1426     const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1427     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1428     {
1429         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1430     }
1431
1432 #if GTK_CHECK_VERSION(2,10,0)
1433     if (!gtk_check_version(2,10,0))
1434     {
1435         return (gtk_widget_is_composited (m_widget));
1436     }
1437     else
1438 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1439     {
1440         return false;
1441     }
1442
1443 #if 0 // Don't be optimistic here for the sake of wxAUI
1444     int opcode, event, error;
1445     // Check for the existence of a RGBA visual instead?
1446     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1447                            "Composite", &opcode, &event, &error);
1448 #endif
1449 }