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/win_gtk.h"
  42
  43 #include "wx/unix/utilsx11.h"
  44
  45 // XA_CARDINAL
  46 #include <X11/Xatom.h>
  47
  48 // ----------------------------------------------------------------------------
  49 // data
  50 // ----------------------------------------------------------------------------
  51
  52 extern int              g_openDialogs;
  53 extern wxWindowGTK     *g_delayedFocus;
  54
  55 // the frame that is currently active (i.e. its child has focus). It is
  56 // used to generate wxActivateEvents
  57 static wxTopLevelWindowGTK *g_activeFrame = (wxTopLevelWindowGTK*) NULL;
  58 static wxTopLevelWindowGTK *g_lastActiveFrame = (wxTopLevelWindowGTK*) NULL;
  59
  60 // if we detect that the app has got/lost the focus, we set this variable to
  61 // either TRUE or FALSE and an activate event will be sent during the next
  62 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  63 // send any activate events at all
  64 static int g_sendActivateEvent = -1;
  65
  66 //-----------------------------------------------------------------------------
  67 // RequestUserAttention related functions
  68 //-----------------------------------------------------------------------------
  69
  70 extern "C" {
  71 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  72                                            gboolean setting)
  73 {
  74     wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
  75     GdkWindow *window = GTK_WIDGET(win)->window;
  76     XWMHints *wm_hints;
  77
  78     wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
  79
  80     if (!wm_hints)
  81         wm_hints = XAllocWMHints();
  82
  83     if (setting)
  84         wm_hints->flags |= XUrgencyHint;
  85     else
  86         wm_hints->flags &= ~XUrgencyHint;
  87
  88     XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
  89     XFree(wm_hints);
  90 }
  91
  92 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
  93 {
  94 #if GTK_CHECK_VERSION(2,7,0)
  95     if(!gtk_check_version(2,7,0))
  96         gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
  97     else
  98 #endif
  99         wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 100
 101     win->m_urgency_hint = -2;
 102     return FALSE;
 103 }
 104 }
 105
 106 //-----------------------------------------------------------------------------
 107 // "focus_in_event"
 108 //-----------------------------------------------------------------------------
 109
 110 extern "C" {
 111 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 112                                          GdkEvent *WXUNUSED(event),
 113                                          wxTopLevelWindowGTK *win )
 114 {
 115     switch ( g_sendActivateEvent )
 116     {
 117         case -1:
 118             // we've got focus from outside, synthetize wxActivateEvent
 119             g_sendActivateEvent = 1;
 120             break;
 121
 122         case 0:
 123             // another our window just lost focus, it was already ours before
 124             // - don't send any wxActivateEvent
 125             g_sendActivateEvent = -1;
 126             break;
 127     }
 128
 129     g_activeFrame = win;
 130     g_lastActiveFrame = g_activeFrame;
 131
 132     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 133
 134     // MR: wxRequestUserAttention related block
 135     switch( win->m_urgency_hint )
 136     {
 137         default:
 138             g_source_remove( win->m_urgency_hint );
 139             // no break, fallthrough to remove hint too
 140         case -1:
 141 #if GTK_CHECK_VERSION(2,7,0)
 142             if(!gtk_check_version(2,7,0))
 143                 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 144             else
 145 #endif
 146             {
 147                 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 148             }
 149
 150             win->m_urgency_hint = -2;
 151             break;
 152
 153         case -2: break;
 154     }
 155
 156     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 157     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 158     event.SetEventObject(g_activeFrame);
 159     g_activeFrame->GetEventHandler()->ProcessEvent(event);
 160
 161     return FALSE;
 162 }
 163 }
 164
 165 //-----------------------------------------------------------------------------
 166 // "focus_out_event"
 167 //-----------------------------------------------------------------------------
 168
 169 extern "C" {
 170 static
 171 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 172                                       GdkEventFocus *WXUNUSED(gdk_event),
 173                                       wxTopLevelWindowGTK * WXUNUSED(win))
 174 {
 175     // if the focus goes out of our app alltogether, OnIdle() will send
 176     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 177     // g_sendActivateEvent to -1
 178     g_sendActivateEvent = 0;
 179
 180     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 181
 182     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 183
 184     if (g_activeFrame)
 185     {
 186         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 187         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 188         event.SetEventObject(g_activeFrame);
 189         g_activeFrame->GetEventHandler()->ProcessEvent(event);
 190
 191         g_activeFrame = NULL;
 192     }
 193
 194     return FALSE;
 195 }
 196 }
 197
 198 //-----------------------------------------------------------------------------
 199
 200 // Get cached size of WM decorations for given GdkWMDecoration.
 201 static wxSize& GetDecorSize(int decor)
 202 {
 203     // In testing, only the title bar and GDK_DECOR_BORDER made a difference.
 204     // 4 possible combinations of title bar and border
 205     static wxSize size[4];
 206
 207     int index = 0;
 208     // title bar
 209     if (decor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
 210         index = 1;
 211     // border
 212     if (decor & GDK_DECOR_BORDER)
 213         index |= 2;
 214     return size[index];
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // "size_allocate" from m_wxwindow
 219 //-----------------------------------------------------------------------------
 220
 221 extern "C" {
 222 static void
 223 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 224 {
 225     if (win->m_oldClientWidth  != alloc->width ||
 226         win->m_oldClientHeight != alloc->height)
 227     {
 228         win->m_oldClientWidth  = alloc->width;
 229         win->m_oldClientHeight = alloc->height;
 230         wxSize sizeDecor;
 231         if (!win->IsFullScreen())
 232             sizeDecor = GetDecorSize(win->m_gdkDecor);
 233         win->m_width  = win->m_widget->allocation.width  + sizeDecor.x;
 234         win->m_height = win->m_widget->allocation.height + sizeDecor.y;
 235         if (!win->IsIconized())
 236         {
 237             wxSizeEvent event(win->GetSize(), win->GetId());
 238             event.SetEventObject(win);
 239             win->GetEventHandler()->ProcessEvent(event);
 240         }
 241         // else the window is currently unmapped, don't generate size events
 242     }
 243 }
 244 }
 245
 246 // ----------------------------------------------------------------------------
 247 // "size_request"
 248 // ----------------------------------------------------------------------------
 249
 250 extern "C" {
 251 static
 252 void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
 253                                      GtkRequisition *requisition,
 254                                      wxTopLevelWindowGTK *win)
 255 {
 256     // we must return the size of the window without WM decorations, otherwise
 257     // GTK+ gets confused, so don't call just GetSize() here
 258     win->GTKDoGetSize(&requisition->width, &requisition->height);
 259 }
 260 }
 261
 262 //-----------------------------------------------------------------------------
 263 // "delete_event"
 264 //-----------------------------------------------------------------------------
 265
 266 extern "C" {
 267 static gboolean
 268 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 269                            GdkEvent *WXUNUSED(event),
 270                            wxTopLevelWindowGTK *win )
 271 {
 272     if (win->IsEnabled() &&
 273         (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 274          win->IsGrabbed()))
 275         win->Close();
 276
 277     return TRUE;
 278 }
 279 }
 280
 281
 282 //-----------------------------------------------------------------------------
 283 // "configure_event"
 284 //-----------------------------------------------------------------------------
 285
 286 extern "C" {
 287 static gboolean
 288 gtk_frame_configure_callback( GtkWidget* widget,
 289                               GdkEventConfigure *WXUNUSED(event),
 290                               wxTopLevelWindowGTK *win )
 291 {
 292     if (!win->m_hasVMT || !win->IsShown())
 293         return FALSE;
 294
 295     wxPoint point;
 296     gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 297
 298     win->m_x = point.x;
 299     win->m_y = point.y;
 300     wxMoveEvent mevent(point, win->GetId());
 301     mevent.SetEventObject( win );
 302     win->GetEventHandler()->ProcessEvent( mevent );
 303
 304     return FALSE;
 305 }
 306 }
 307
 308 //-----------------------------------------------------------------------------
 309 // "realize" from m_widget
 310 //-----------------------------------------------------------------------------
 311
 312 // we cannot MWM hints and icons before the widget has been realized,
 313 // so we do this directly after realization
 314
 315 extern "C" {
 316 static void
 317 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 318                              wxTopLevelWindowGTK *win )
 319 {
 320     // All this is for Motif Window Manager "hints" and is supposed to be
 321     // recognized by other WM as well. Not tested.
 322     gdk_window_set_decorations(win->m_widget->window,
 323                                (GdkWMDecoration)win->m_gdkDecor);
 324     gdk_window_set_functions(win->m_widget->window,
 325                                (GdkWMFunction)win->m_gdkFunc);
 326
 327     // GTK's shrinking/growing policy
 328     if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0)
 329         gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
 330     else
 331         gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 332
 333     // reset the icon
 334     wxIconBundle iconsOld = win->GetIcons();
 335     if ( !iconsOld.IsEmpty() )
 336     {
 337         win->SetIcon( wxNullIcon );
 338         win->SetIcons( iconsOld );
 339     }
 340 }
 341 }
 342
 343 //-----------------------------------------------------------------------------
 344 // "map_event" from m_widget
 345 //-----------------------------------------------------------------------------
 346
 347 extern "C" {
 348 static gboolean
 349 gtk_frame_map_callback( GtkWidget* widget,
 350                         GdkEvent * WXUNUSED(event),
 351                         wxTopLevelWindow *win )
 352 {
 353     // Calculate size of WM decorations.
 354     // Done here in case WM does not support the _NET_FRAME_EXTENTS property.
 355     if (win->IsDecorCacheable() && !win->IsFullScreen())
 356     {
 357         GdkRectangle rect;
 358         gdk_window_get_frame_extents(widget->window, &rect);
 359         int w, h;
 360         gdk_drawable_get_size(widget->window, &w, &h);
 361         wxSize& decorSize = GetDecorSize(win->m_gdkDecor);
 362         const wxSize size = wxSize(rect.width - w, rect.height - h);
 363         if (decorSize.x != size.x || decorSize.y != size.y)
 364         {
 365             // Update window size and frame extents cache
 366             win->m_width = rect.width;
 367             win->m_height = rect.height;
 368             decorSize = size;
 369         }
 370     }
 371
 372     const bool wasIconized = win->IsIconized();
 373
 374     win->SetIconizeState(false);
 375
 376     if (wasIconized)
 377     {
 378         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 379         // a size event must be generated, just in case GetClientSize() was
 380         // called while iconized. This specifically happens when restoring a
 381         // tlw that was "rolled up" with some WMs.
 382         // Queue a resize rather than sending size event directly to allow
 383         // children to be made visible first.
 384         win->m_oldClientWidth = 0;
 385         gtk_widget_queue_resize(win->m_wxwindow);
 386     }
 387
 388     return false;
 389 }
 390 }
 391
 392 //-----------------------------------------------------------------------------
 393 // "unmap_event" from m_widget
 394 //-----------------------------------------------------------------------------
 395
 396 extern "C" {
 397 static gboolean
 398 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
 399                           GdkEvent * WXUNUSED(event),
 400                           wxTopLevelWindow *win )
 401 {
 402     win->SetIconizeState(true);
 403     return false;
 404 }
 405 }
 406
 407 //-----------------------------------------------------------------------------
 408 // "property_notify_event" from m_widget
 409 //-----------------------------------------------------------------------------
 410
 411 extern "C" {
 412 static gboolean property_notify_event(
 413     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 414 {
 415     // Watch for changes to _NET_FRAME_EXTENTS property
 416     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 417     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property &&
 418         win->IsDecorCacheable() && !win->IsFullScreen())
 419     {
 420         Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 421                             gdk_drawable_get_display(event->window), property);
 422         Atom type;
 423         int format;
 424         gulong nitems, bytes_after;
 425         long* data = NULL;
 426         Status status = XGetWindowProperty(
 427             gdk_x11_drawable_get_xdisplay(event->window),
 428             gdk_x11_drawable_get_xid(event->window),
 429             xproperty,
 430             0, 4, false, XA_CARDINAL,
 431             &type, &format, &nitems, &bytes_after, (guchar**)&data);
 432         if (status == Success && data && nitems == 4)
 433         {
 434             wxSize& decorSize = GetDecorSize(win->m_gdkDecor);
 435             const wxSize size =
 436                 wxSize(int(data[0] + data[1]), int(data[2] + data[3]));
 437             if (decorSize.x != size.x || decorSize.y != size.y)
 438             {
 439                 // Update window size and frame extents cache
 440                 win->m_width  += size.x - decorSize.x;
 441                 win->m_height += size.y - decorSize.y;
 442                 if (win->m_width  < 0) win->m_width  = 0;
 443                 if (win->m_height < 0) win->m_height = 0;
 444                 decorSize = size;
 445                 win->m_oldClientWidth = 0;
 446                 gtk_widget_queue_resize(win->m_wxwindow);
 447             }
 448         }
 449         if (data)
 450             XFree(data);
 451     }
 452     return false;
 453 }
 454 }
 455
 456 BEGIN_EVENT_TABLE(wxTopLevelWindowGTK, wxTopLevelWindowBase)
 457     EVT_SYS_COLOUR_CHANGED(wxTopLevelWindowGTK::OnSysColourChanged)
 458 END_EVENT_TABLE()
 459
 460
 461 // ----------------------------------------------------------------------------
 462 // wxTopLevelWindowGTK creation
 463 // ----------------------------------------------------------------------------
 464
 465 void wxTopLevelWindowGTK::Init()
 466 {
 467     m_mainWidget = (GtkWidget*) NULL;
 468     m_isIconized = false;
 469     m_fsIsShowing = false;
 470     m_themeEnabled = true;
 471     m_gdkDecor = m_gdkFunc = 0;
 472     m_grabbed = false;
 473
 474     m_urgency_hint = -2;
 475 }
 476
 477 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 478                                   wxWindowID id,
 479                                   const wxString& title,
 480                                   const wxPoint& pos,
 481                                   const wxSize& sizeOrig,
 482                                   long style,
 483                                   const wxString &name )
 484 {
 485     // always create a frame of some reasonable, even if arbitrary, size (at
 486     // least for MSW compatibility)
 487     wxSize size = sizeOrig;
 488     size.x = WidthDefault(size.x);
 489     size.y = HeightDefault(size.y);
 490
 491     wxTopLevelWindows.Append( this );
 492
 493     if (!PreCreation( parent, pos, size ) ||
 494         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 495     {
 496         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 497         return false;
 498     }
 499
 500     m_title = title;
 501
 502     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 503     //     e.g. in wxTaskBarIconAreaGTK
 504     if (m_widget == NULL)
 505     {
 506         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 507         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 508         {
 509             // Tell WM that this is a dialog window and make it center
 510             // on parent by default (this is what GtkDialog ctor does):
 511             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 512                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 513             gtk_window_set_position(GTK_WINDOW(m_widget),
 514                                     GTK_WIN_POS_CENTER_ON_PARENT);
 515         }
 516         else
 517         {
 518             if (style & wxFRAME_TOOL_WINDOW)
 519             {
 520                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 521                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 522
 523                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 524                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 525                 // For consistency between WMs and with Windows, we
 526                 // should set the NO_TASKBAR flag which will apply
 527                 // the set_skip_taskbar_hint if it is available,
 528                 // ensuring no taskbar entry will appear.
 529                 style |= wxFRAME_NO_TASKBAR;
 530             }
 531         }
 532     }
 533
 534     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 535     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 536                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 537                        (style & wxFRAME_FLOAT_ON_PARENT)))
 538     {
 539         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 540                                       GTK_WINDOW(topParent->m_widget) );
 541     }
 542
 543     if (style & wxFRAME_NO_TASKBAR)
 544     {
 545         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 546     }
 547
 548     if (style & wxSTAY_ON_TOP)
 549     {
 550         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 551     }
 552
 553 #if 0
 554     if (!name.empty())
 555         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 556 #endif
 557
 558     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 559     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 560
 561     g_signal_connect (m_widget, "delete_event",
 562                       G_CALLBACK (gtk_frame_delete_callback), this);
 563
 564     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 565     m_mainWidget = gtk_vbox_new(false, 0);
 566     gtk_widget_show( m_mainWidget );
 567     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 568     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 569
 570     // m_wxwindow is the client area
 571     m_wxwindow = wxPizza::New();
 572     gtk_widget_show( m_wxwindow );
 573     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 574
 575     // we donm't allow the frame to get the focus as otherwise
 576     // the frame will grab it at arbitrary focus changes
 577     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 578
 579     if (m_parent) m_parent->AddChild( this );
 580
 581     g_signal_connect(m_wxwindow, "size_allocate",
 582         G_CALLBACK(size_allocate), this);
 583
 584     g_signal_connect (m_widget, "size_request",
 585                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 586     PostCreation();
 587
 588     if ((m_x != -1) || (m_y != -1))
 589         gtk_widget_set_uposition( m_widget, m_x, m_y );
 590
 591     //  we cannot set MWM hints and icons before the widget has
 592     //  been realized, so we do this directly after realization
 593     g_signal_connect (m_widget, "realize",
 594                       G_CALLBACK (gtk_frame_realized_callback), this);
 595
 596     // map and unmap for iconized state
 597     g_signal_connect (m_widget, "map_event",
 598                       G_CALLBACK (gtk_frame_map_callback), this);
 599     g_signal_connect (m_widget, "unmap_event",
 600                       G_CALLBACK (gtk_frame_unmap_callback), this);
 601
 602     // for wxMoveEvent
 603     g_signal_connect (m_widget, "configure_event",
 604                       G_CALLBACK (gtk_frame_configure_callback), this);
 605
 606     // activation
 607     g_signal_connect_after (m_widget, "focus_in_event",
 608                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 609     g_signal_connect_after (m_widget, "focus_out_event",
 610                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 611
 612     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 613     g_signal_connect(m_widget, "property_notify_event",
 614         G_CALLBACK(property_notify_event), this);
 615
 616     // decorations
 617     if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
 618     {
 619         m_gdkDecor = 0;
 620         m_gdkFunc = 0;
 621     }
 622     else
 623     {
 624         m_gdkDecor = GDK_DECOR_BORDER;
 625         m_gdkFunc = GDK_FUNC_MOVE;
 626
 627         // All this is for Motif Window Manager "hints" and is supposed to be
 628         // recognized by other WMs as well.
 629         if ((style & wxCAPTION) != 0)
 630         {
 631             m_gdkDecor |= GDK_DECOR_TITLE;
 632         }
 633         if ((style & wxCLOSE_BOX) != 0)
 634         {
 635             m_gdkFunc |= GDK_FUNC_CLOSE;
 636         }
 637         if ((style & wxSYSTEM_MENU) != 0)
 638         {
 639             m_gdkDecor |= GDK_DECOR_MENU;
 640         }
 641         if ((style & wxMINIMIZE_BOX) != 0)
 642         {
 643             m_gdkFunc |= GDK_FUNC_MINIMIZE;
 644             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 645         }
 646         if ((style & wxMAXIMIZE_BOX) != 0)
 647         {
 648             m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 649             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 650         }
 651         if ((style & wxRESIZE_BORDER) != 0)
 652         {
 653            m_gdkFunc |= GDK_FUNC_RESIZE;
 654            m_gdkDecor |= GDK_DECOR_RESIZEH;
 655         }
 656     }
 657
 658     // m_gdkDecor needs to be set before calling GTKDoGetSize
 659     int w, h;
 660     GTKDoGetSize(&w, &h);
 661     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 662
 663     return true;
 664 }
 665
 666 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 667 {
 668     if (m_grabbed)
 669     {
 670         wxFAIL_MSG(_T("Window still grabbed"));
 671         RemoveGrab();
 672     }
 673
 674     m_isBeingDeleted = true;
 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 bool wxTopLevelWindowGTK::Show( bool show )
 786 {
 787     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 788
 789     if (show && !IsShown())
 790     {
 791         // size_allocate signals occur in reverse order (bottom to top).
 792         // Things work better if the initial wxSizeEvents are sent (from the
 793         // top down), before the initial size_allocate signals occur.
 794         wxSizeEvent event(GetSize(), GetId());
 795         event.SetEventObject(this);
 796         GetEventHandler()->ProcessEvent(event);
 797     }
 798
 799     bool change = wxTopLevelWindowBase::Show(show);
 800
 801     if (change && !show)
 802     {
 803         // make sure window has a non-default position, so when it is shown
 804         // again, it won't be repositioned by WM as if it were a new window
 805         // Note that this must be done _after_ the window is hidden.
 806         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 807     }
 808
 809     return change;
 810 }
 811
 812 void wxTopLevelWindowGTK::Raise()
 813 {
 814     gtk_window_present( GTK_WINDOW( m_widget ) );
 815 }
 816
 817 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 818 {
 819     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 820 }
 821
 822 // ----------------------------------------------------------------------------
 823 // window geometry
 824 // ----------------------------------------------------------------------------
 825
 826 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 827 {
 828     wxSize size(m_width, m_height);
 829     if (!IsFullScreen())
 830     {
 831         size -= GetDecorSize(m_gdkDecor);
 832         if (size.x < 0) size.x = 0;
 833         if (size.y < 0) size.y = 0;
 834     }
 835     if (width)  *width  = size.x;
 836     if (height) *height = size.y;
 837 }
 838
 839 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 840 {
 841     wxCHECK_RET( m_widget, wxT("invalid frame") );
 842
 843     // deal with the position first
 844     int old_x = m_x;
 845     int old_y = m_y;
 846
 847     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 848     {
 849         // -1 means "use existing" unless the flag above is specified
 850         if ( x != -1 )
 851             m_x = x;
 852         if ( y != -1 )
 853             m_y = y;
 854     }
 855     else // wxSIZE_ALLOW_MINUS_ONE
 856     {
 857         m_x = x;
 858         m_y = y;
 859     }
 860
 861     if ( m_x != old_x || m_y != old_y )
 862     {
 863         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 864     }
 865
 866     const wxSize oldSize(m_width, m_height);
 867     if (width >= 0)
 868         m_width = width;
 869     if (height >= 0)
 870         m_height = height;
 871     ConstrainSize();
 872     if (m_width != oldSize.x || m_height != oldSize.y)
 873     {
 874         int w, h;
 875         GTKDoGetSize(&w, &h);
 876         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
 877
 878         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
 879         wxSizeEvent event(GetSize(), GetId());
 880         event.SetEventObject(this);
 881         GetEventHandler()->ProcessEvent(event);
 882     }
 883 }
 884
 885 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
 886 {
 887     wxASSERT_MSG(m_widget, wxT("invalid frame"));
 888
 889     if ( IsIconized() )
 890     {
 891         // for consistency with wxMSW, client area is supposed to be empty for
 892         // the iconized windows
 893         if ( width )
 894             *width = 0;
 895         if ( height )
 896             *height = 0;
 897     }
 898     else
 899     {
 900         GTKDoGetSize(width, height);
 901     }
 902 }
 903
 904 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
 905                                           int maxW, int maxH,
 906                                           int incW, int incH )
 907 {
 908     wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH );
 909
 910     const wxSize minSize = GetMinSize();
 911     const wxSize maxSize = GetMaxSize();
 912     GdkGeometry hints;
 913     int hints_mask = 0;
 914     const wxSize sizeDecor = GetDecorSize(m_gdkDecor);
 915     if (minSize.x > 0 || minSize.y > 0)
 916     {
 917         hints_mask |= GDK_HINT_MIN_SIZE;
 918         hints.min_width = minSize.x - sizeDecor.x;
 919         if (hints.min_width < 0)
 920             hints.min_width = 0;
 921         hints.min_height = minSize.y - sizeDecor.y;
 922         if (hints.min_height < 0)
 923             hints.min_height = 0;
 924     }
 925     if (maxSize.x > 0 || maxSize.y > 0)
 926     {
 927         hints_mask |= GDK_HINT_MAX_SIZE;
 928         hints.max_width = maxSize.x - sizeDecor.x;
 929         if (hints.max_width < 0)
 930             hints.max_width = INT_MAX;
 931         hints.max_height = maxSize.y - sizeDecor.y;
 932         if (hints.max_height < 0)
 933             hints.max_height = INT_MAX;
 934     }
 935     if (incW > 0 || incH > 0)
 936     {
 937         hints_mask |= GDK_HINT_RESIZE_INC;
 938         hints.width_inc  = incW > 0 ? incW : 1;
 939         hints.height_inc = incH > 0 ? incH : 1;
 940     }
 941     gtk_window_set_geometry_hints(
 942         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
 943 }
 944
 945 bool wxTopLevelWindowGTK::IsDecorCacheable() const
 946 {
 947     return true;
 948 }
 949
 950 void wxTopLevelWindowGTK::OnInternalIdle()
 951 {
 952     // set the focus if not done yet and if we can already do it
 953     if ( GTK_WIDGET_REALIZED(m_wxwindow) )
 954     {
 955         if ( g_delayedFocus &&
 956              wxGetTopLevelParent((wxWindow*)g_delayedFocus) == this )
 957         {
 958             wxLogTrace(_T("focus"),
 959                        _T("Setting focus from wxTLW::OnIdle() to %s(%s)"),
 960                        g_delayedFocus->GetClassInfo()->GetClassName(),
 961                        g_delayedFocus->GetLabel().c_str());
 962
 963             g_delayedFocus->SetFocus();
 964             g_delayedFocus = NULL;
 965         }
 966     }
 967
 968     wxWindow::OnInternalIdle();
 969
 970     // Synthetize activate events.
 971     if ( g_sendActivateEvent != -1 )
 972     {
 973         bool activate = g_sendActivateEvent != 0;
 974
 975         // if (!activate) wxPrintf( wxT("de") );
 976         // wxPrintf( wxT("activate\n") );
 977
 978         // do it only once
 979         g_sendActivateEvent = -1;
 980
 981         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
 982     }
 983 }
 984
 985 // ----------------------------------------------------------------------------
 986 // frame title/icon
 987 // ----------------------------------------------------------------------------
 988
 989 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
 990 {
 991     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 992
 993     if ( title == m_title )
 994         return;
 995
 996     m_title = title;
 997
 998     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 999 }
1000
1001 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1002 {
1003     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1004
1005     wxTopLevelWindowBase::SetIcons( icons );
1006
1007     GList *list = NULL;
1008
1009     const size_t numIcons = icons.GetIconCount();
1010     for ( size_t i = 0; i < numIcons; i++ )
1011     {
1012         list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1013     }
1014
1015     gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1016     g_list_free(list);
1017 }
1018
1019 // ----------------------------------------------------------------------------
1020 // frame state: maximized/iconized/normal
1021 // ----------------------------------------------------------------------------
1022
1023 void wxTopLevelWindowGTK::Maximize(bool maximize)
1024 {
1025     if (maximize)
1026         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1027     else
1028         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1029 }
1030
1031 bool wxTopLevelWindowGTK::IsMaximized() const
1032 {
1033     if(!m_widget->window)
1034         return false;
1035
1036     return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1037 }
1038
1039 void wxTopLevelWindowGTK::Restore()
1040 {
1041     // "Present" seems similar enough to "restore"
1042     gtk_window_present( GTK_WINDOW( m_widget ) );
1043 }
1044
1045 void wxTopLevelWindowGTK::Iconize( bool iconize )
1046 {
1047     if (iconize)
1048         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1049     else
1050         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1051 }
1052
1053 bool wxTopLevelWindowGTK::IsIconized() const
1054 {
1055     return m_isIconized;
1056 }
1057
1058 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1059 {
1060     if ( iconize != m_isIconized )
1061     {
1062         m_isIconized = iconize;
1063         (void)SendIconizeEvent(iconize);
1064     }
1065 }
1066
1067 void wxTopLevelWindowGTK::AddGrab()
1068 {
1069     if (!m_grabbed)
1070     {
1071         m_grabbed = true;
1072         gtk_grab_add( m_widget );
1073         wxGUIEventLoop().Run();
1074         gtk_grab_remove( m_widget );
1075     }
1076 }
1077
1078 void wxTopLevelWindowGTK::RemoveGrab()
1079 {
1080     if (m_grabbed)
1081     {
1082         gtk_main_quit();
1083         m_grabbed = false;
1084     }
1085 }
1086
1087
1088 // helper
1089 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1090 {
1091     if (window)
1092     {
1093         if (region.IsEmpty())
1094         {
1095             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1096         }
1097         else
1098         {
1099             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1100             return true;
1101         }
1102     }
1103     return false;
1104 }
1105
1106
1107 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1108 {
1109     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1110                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
1111
1112     GdkWindow *window = NULL;
1113     if (m_wxwindow)
1114     {
1115         do_shape_combine_region(m_wxwindow->window, region);
1116     }
1117     window = m_widget->window;
1118     return do_shape_combine_region(window, region);
1119 }
1120
1121 bool wxTopLevelWindowGTK::IsActive()
1122 {
1123     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1124 }
1125
1126 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1127 {
1128     bool new_hint_value = false;
1129
1130     // FIXME: This is a workaround to focus handling problem
1131     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle hasn't
1132     // yet been processed, and the internal focus system is not up to date yet.
1133     // wxYieldIfNeeded ensures the processing of it, but can have unwanted side effects - MR
1134     ::wxYieldIfNeeded();
1135
1136     if(m_urgency_hint >= 0)
1137         g_source_remove(m_urgency_hint);
1138
1139     m_urgency_hint = -2;
1140
1141     if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1142     {
1143         new_hint_value = true;
1144
1145         if (flags & wxUSER_ATTENTION_INFO)
1146         {
1147             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1148         } else {
1149             m_urgency_hint = -1;
1150         }
1151     }
1152
1153 #if GTK_CHECK_VERSION(2,7,0)
1154     if(!gtk_check_version(2,7,0))
1155         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1156     else
1157 #endif
1158         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1159 }
1160
1161 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1162 {
1163     // Store which styles were changed
1164     long styleChanges = style ^ m_windowStyle;
1165
1166     // Process wxWindow styles. This also updates the internal variable
1167     // Therefore m_windowStyle bits carry now the _new_ style values
1168     wxWindow::SetWindowStyleFlag(style);
1169
1170     // just return for now if widget does not exist yet
1171     if (!m_widget)
1172         return;
1173
1174     if ( styleChanges & wxSTAY_ON_TOP )
1175     {
1176         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1177                                   m_windowStyle & wxSTAY_ON_TOP);
1178     }
1179
1180     if ( styleChanges & wxFRAME_NO_TASKBAR )
1181     {
1182         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1183                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1184     }
1185 }
1186
1187 /* Get the X Window between child and the root window.
1188    This should usually be the WM managed XID */
1189 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1190 {
1191     Window root, parent;
1192     Window* children;
1193     unsigned int nchildren;
1194
1195     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1196     XFree(children);
1197
1198     while (parent != root) {
1199         child = parent;
1200         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1201         XFree(children);
1202     }
1203
1204     return child;
1205 }
1206
1207 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1208 {
1209     if (!m_widget || !m_widget->window)
1210         return false;
1211
1212     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1213     // We need to get the X Window that has the root window as the immediate parent
1214     // and m_widget->window as a child. This should be the X Window that the WM manages and
1215     // from which the opacity property is checked from.
1216     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1217
1218
1219     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1220     if (alpha == 0xff)
1221         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1222     else
1223     {
1224         long opacity = alpha * 0x1010101L;
1225         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1226                         XA_CARDINAL, 32, PropModeReplace,
1227                         (unsigned char *) &opacity, 1L);
1228     }
1229     XSync(dpy, False);
1230     return true;
1231 }
1232
1233 bool wxTopLevelWindowGTK::CanSetTransparent()
1234 {
1235     // allow to override automatic detection as it's far from perfect
1236     static const wxChar *SYSOPT_TRANSPARENT = wxT("gtk.tlw.can-set-transparent");
1237     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1238     {
1239         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1240     }
1241
1242 #if GTK_CHECK_VERSION(2,10,0)
1243     if (!gtk_check_version(2,10,0))
1244     {
1245         return (gtk_widget_is_composited (m_widget));
1246     }
1247     else
1248 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1249     {
1250         return false;
1251     }
1252
1253 #if 0 // Don't be optimistic here for the sake of wxAUI
1254     int opcode, event, error;
1255     // Check for the existence of a RGBA visual instead?
1256     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1257                            "Composite", &opcode, &event, &error);
1258 #endif
1259 }
1260
1261 void wxTopLevelWindowGTK::OnSysColourChanged(wxSysColourChangedEvent& event)
1262 {
1263     // We don't know the order in which top-level windows will
1264     // be notified, so we need to clear the system objects
1265     // for each top-level window.
1266     extern void wxClearGtkSystemObjects();
1267     wxClearGtkSystemObjects();
1268
1269     // wxWindowBase::OnSysColourChanged will propagate event
1270     // to children
1271     event.Skip();
1272 }