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