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