src/x11/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        x11/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for X11
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002 Julian Smart
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38     #include "wx/menu.h"
  39     #include "wx/statusbr.h"
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/settings.h"
  43 #include "wx/x11/private.h"
  44 #include "X11/Xutil.h"
  45
  46 bool wxMWMIsRunning(Window w);
  47
  48 // ----------------------------------------------------------------------------
  49 // wxTopLevelWindowX11 creation
  50 // ----------------------------------------------------------------------------
  51
  52 void wxTopLevelWindowX11::Init()
  53 {
  54     m_iconized =
  55     m_maximizeOnShow = FALSE;
  56
  57     // unlike (almost?) all other windows, frames are created hidden
  58     m_isShown = FALSE;
  59
  60     // Data to save/restore when calling ShowFullScreen
  61     m_fsStyle = 0;
  62     m_fsIsMaximized = FALSE;
  63     m_fsIsShowing = FALSE;
  64
  65     m_needResizeInIdle = FALSE;
  66 }
  67
  68 bool wxTopLevelWindowX11::Create(wxWindow *parent,
  69                                  wxWindowID id,
  70                                  const wxString& title,
  71                                  const wxPoint& pos,
  72                                  const wxSize& size,
  73                                  long style,
  74                                  const wxString& name)
  75 {
  76     // init our fields
  77     Init();
  78
  79     m_windowStyle = style;
  80     m_parent = parent;
  81
  82     SetName(name);
  83
  84     m_windowId = id == -1 ? NewControlId() : id;
  85
  86     if (parent)
  87         parent->AddChild(this);
  88
  89     wxTopLevelWindows.Append(this);
  90
  91     Display *xdisplay = wxGlobalDisplay();
  92     int xscreen = DefaultScreen( xdisplay );
  93     Visual *xvisual = DefaultVisual( xdisplay, xscreen );
  94     Window xparent = RootWindow( xdisplay, xscreen );
  95     Colormap cm = DefaultColormap( xdisplay, xscreen );
  96
  97     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
  98         m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
  99     else
 100         m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
 101     m_backgroundColour.CalcPixel( (WXColormap) cm );
 102     m_hasBgCol = TRUE;
 103
 104     wxSize size2(size);
 105     if (size2.x == -1)
 106         size2.x = 100;
 107     if (size2.y == -1)
 108         size2.y = 100;
 109
 110     wxPoint pos2(pos);
 111     if (pos2.x == -1)
 112         pos2.x = 100;
 113     if (pos2.y == -1)
 114         pos2.y = 100;
 115
 116 #if !wxUSE_NANOX
 117     XSetWindowAttributes xattributes;
 118     XSizeHints size_hints;
 119
 120     long xattributes_mask =
 121         CWBorderPixel | CWBackPixel;
 122
 123     xattributes.background_pixel = m_backgroundColour.GetPixel();
 124     xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
 125
 126     if (HasFlag( wxNO_FULL_REPAINT_ON_RESIZE ))
 127     {
 128         xattributes_mask |= CWBitGravity;
 129         xattributes.bit_gravity = StaticGravity;
 130     }
 131
 132     xattributes_mask |= CWEventMask;
 133     xattributes.event_mask =
 134         ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
 135         ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
 136         KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
 137         PropertyChangeMask;
 138
 139     Window xwindow = XCreateWindow( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 140                                     0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 141 #else
 142     long backColor, foreColor;
 143     backColor = GR_RGB(m_backgroundColour.Red(), m_backgroundColour.Green(), m_backgroundColour.Blue());
 144     foreColor = GR_RGB(m_foregroundColour.Red(), m_foregroundColour.Green(), m_foregroundColour.Blue());
 145
 146     Window xwindow = XCreateWindowWithColor( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 147                                     0, 0, InputOutput, xvisual, backColor, foreColor);
 148 #endif
 149
 150     m_mainWidget = (WXWindow) xwindow;
 151
 152 #if wxUSE_NANOX
 153     XSelectInput( xdisplay, xwindow,
 154                   GR_EVENT_MASK_CLOSE_REQ |
 155                   ExposureMask |
 156                   KeyPressMask |
 157                   KeyReleaseMask |
 158                   ButtonPressMask |
 159                   ButtonReleaseMask |
 160                   ButtonMotionMask |
 161                   EnterWindowMask |
 162                   LeaveWindowMask |
 163                   PointerMotionMask |
 164                   KeymapStateMask |
 165                   FocusChangeMask |
 166                   ColormapChangeMask |
 167                   StructureNotifyMask |
 168                   PropertyChangeMask
 169                   );
 170 #endif
 171
 172     wxAddWindowToTable( xwindow, (wxWindow*) this );
 173
 174     // Set background to None which will prevent X11 from clearing the
 175     // background completely.
 176     XSetWindowBackgroundPixmap( xdisplay, xwindow, None );
 177
 178 #if !wxUSE_NANOX
 179     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 180     {
 181         if (GetParent() && GetParent()->GetMainWindow())
 182         {
 183              Window xparentwindow = (Window) GetParent()->GetMainWindow();
 184              XSetTransientForHint( xdisplay, xwindow, xparentwindow );
 185         }
 186     }
 187
 188     size_hints.flags = PSize | PPosition;
 189     size_hints.x = pos2.x;
 190     size_hints.y = pos2.y;
 191     size_hints.width = size2.x;
 192     size_hints.height = size2.y;
 193     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
 194
 195     XWMHints wm_hints;
 196     wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
 197     wm_hints.input = True;
 198     wm_hints.initial_state = NormalState;
 199     XSetWMHints( xdisplay, xwindow, &wm_hints);
 200
 201     Atom wm_protocols[2];
 202     wm_protocols[0] = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False );
 203     wm_protocols[1] = XInternAtom( xdisplay, "WM_TAKE_FOCUS", False );
 204     XSetWMProtocols( xdisplay, xwindow, wm_protocols, 2);
 205
 206 #if 0 // TODO
 207     // You will need a compliant window manager for this to work
 208     // (e.g. sawfish/enlightenment/kde/icewm/windowmaker)
 209     if (style & wxSTAY_ON_TOP)
 210     {
 211         CARD32 data = 4; // or should this be 6? According to http://developer.gnome.org/doc/standards/wm/c44.html
 212         XChangeProperty (xdisplay,
 213                     xwindow,
 214                     XInternAtom (xdisplay, "_WIN_LAYER", False),
 215                     XA_CARDINAL,
 216                     32,
 217                     PropModeReplace,
 218                     (unsigned char *)&data,
 219                     1);
 220     }
 221 #endif
 222
 223 #endif
 224
 225     wxSetWMDecorations( xwindow, style);
 226
 227     SetTitle(title);
 228
 229     return TRUE;
 230 }
 231
 232 wxTopLevelWindowX11::~wxTopLevelWindowX11()
 233 {
 234     wxTopLevelWindows.DeleteObject(this);
 235
 236     // If this is the last top-level window, exit.
 237     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 238     {
 239         wxTheApp->SetTopWindow(NULL);
 240
 241         if (wxTheApp->GetExitOnFrameDelete())
 242         {
 243             // Signal to the app that we're going to close
 244             wxTheApp->ExitMainLoop();
 245         }
 246     }
 247 }
 248
 249 void wxTopLevelWindowX11::OnInternalIdle()
 250 {
 251     wxWindow::OnInternalIdle();
 252
 253     if (m_needResizeInIdle)
 254     {
 255         wxSizeEvent event( GetClientSize(), GetId() );
 256         event.SetEventObject( this );
 257         GetEventHandler()->ProcessEvent( event );
 258
 259         m_needResizeInIdle = FALSE;
 260     }
 261 }
 262
 263 // ----------------------------------------------------------------------------
 264 // wxTopLevelWindowX11 showing
 265 // ----------------------------------------------------------------------------
 266
 267 bool wxTopLevelWindowX11::Show(bool show)
 268 {
 269     // Nano-X has to force a size event,
 270     // else there's no initial size.
 271 #if wxUSE_NANOX
 272     if (show)
 273 #else
 274     if (show && m_needResizeInIdle)
 275 #endif
 276     {
 277         wxSizeEvent event(GetSize(), GetId());
 278         event.SetEventObject(this);
 279         GetEventHandler()->ProcessEvent(event);
 280
 281         m_needResizeInIdle = FALSE;
 282     }
 283
 284     if (show)
 285     {
 286         // This does the layout _before_ the
 287         // window is shown, else the items are
 288         // drawn first at the wrong positions,
 289         // then at the correct positions.
 290         if (GetAutoLayout())
 291         {
 292             Layout();
 293         }
 294     }
 295
 296     return wxWindowX11::Show(show);
 297 }
 298
 299 // ----------------------------------------------------------------------------
 300 // wxTopLevelWindowX11 maximize/minimize
 301 // ----------------------------------------------------------------------------
 302
 303 void wxTopLevelWindowX11::Maximize(bool maximize)
 304 {
 305     // TODO
 306 }
 307
 308 bool wxTopLevelWindowX11::IsMaximized() const
 309 {
 310     // TODO
 311     return TRUE;
 312 }
 313
 314 void wxTopLevelWindowX11::Iconize(bool iconize)
 315 {
 316     if (!m_iconized && GetMainWindow())
 317     {
 318         if (XIconifyWindow(wxGlobalDisplay(),
 319             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 320             m_iconized = TRUE;
 321     }
 322 }
 323
 324 bool wxTopLevelWindowX11::IsIconized() const
 325 {
 326     return m_iconized;
 327 }
 328
 329 void wxTopLevelWindowX11::Restore()
 330 {
 331     // This is the way to deiconify the window, according to the X FAQ
 332     if (m_iconized && GetMainWindow())
 333     {
 334         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 335         m_iconized = FALSE;
 336     }
 337 }
 338
 339 // ----------------------------------------------------------------------------
 340 // wxTopLevelWindowX11 fullscreen
 341 // ----------------------------------------------------------------------------
 342
 343 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 344 {
 345     if (show)
 346     {
 347         if (IsFullScreen())
 348             return FALSE;
 349
 350         m_fsIsShowing = TRUE;
 351         m_fsStyle = style;
 352
 353         // TODO
 354
 355         return TRUE;
 356     }
 357     else
 358     {
 359         if (!IsFullScreen())
 360             return FALSE;
 361
 362         m_fsIsShowing = FALSE;
 363
 364         // TODO
 365         return TRUE;
 366     }
 367 }
 368
 369 // ----------------------------------------------------------------------------
 370 // wxTopLevelWindowX11 misc
 371 // ----------------------------------------------------------------------------
 372
 373 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 374 {
 375     // this sets m_icon
 376     wxTopLevelWindowBase::SetIcon(icon);
 377
 378     if (icon.Ok() && GetMainWindow())
 379     {
 380 #if wxUSE_NANOX
 381 #else
 382         XWMHints *wmHints = XAllocWMHints();
 383         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 384
 385         wmHints->flags = IconPixmapHint;
 386
 387         if (icon.GetMask())
 388         {
 389             wmHints->flags |= IconMaskHint;
 390             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetBitmap();
 391         }
 392
 393         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(), wmHints);
 394         XFree(wmHints);
 395 #endif
 396     }
 397 }
 398
 399 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 400 {
 401     m_title = title;
 402     if (GetMainWindow())
 403     {
 404         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 405             (const char*) title);
 406         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 407             (const char*) title);
 408
 409         // Use this if the platform doesn't supply the above functions.
 410 #if 0
 411         XTextProperty textProperty;
 412         textProperty.value = (unsigned char*) title;
 413         textProperty.encoding = XA_STRING;
 414         textProperty.format = 8;
 415         textProperty.nitems = 1;
 416
 417         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 418             & textProperty, WM_NAME);
 419 #endif
 420     }
 421 }
 422
 423 wxString wxTopLevelWindowX11::GetTitle() const
 424 {
 425     return m_title;
 426 }
 427
 428 #ifndef MWM_DECOR_BORDER
 429
 430 #define MWM_HINTS_FUNCTIONS     (1L << 0)
 431 #define MWM_HINTS_DECORATIONS   (1L << 1)
 432 #define MWM_HINTS_INPUT_MODE    (1L << 2)
 433 #define MWM_HINTS_STATUS        (1L << 3)
 434
 435 #define MWM_DECOR_ALL           (1L << 0)
 436 #define MWM_DECOR_BORDER        (1L << 1)
 437 #define MWM_DECOR_RESIZEH       (1L << 2)
 438 #define MWM_DECOR_TITLE         (1L << 3)
 439 #define MWM_DECOR_MENU          (1L << 4)
 440 #define MWM_DECOR_MINIMIZE      (1L << 5)
 441 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 442
 443 #define MWM_FUNC_ALL            (1L << 0)
 444 #define MWM_FUNC_RESIZE         (1L << 1)
 445 #define MWM_FUNC_MOVE           (1L << 2)
 446 #define MWM_FUNC_MINIMIZE       (1L << 3)
 447 #define MWM_FUNC_MAXIMIZE       (1L << 4)
 448 #define MWM_FUNC_CLOSE          (1L << 5)
 449
 450 #define MWM_INPUT_MODELESS 0
 451 #define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
 452 #define MWM_INPUT_SYSTEM_MODAL 2
 453 #define MWM_INPUT_FULL_APPLICATION_MODAL 3
 454 #define MWM_INPUT_APPLICATION_MODAL MWM_INPUT_PRIMARY_APPLICATION_MODAL
 455
 456 #define MWM_TEAROFF_WINDOW      (1L<<0)
 457
 458 #endif
 459
 460 struct MwmHints {
 461     long flags;
 462     long functions;
 463     long decorations;
 464     long input_mode;
 465 };
 466
 467 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 468
 469 // Set the window manager decorations according to the
 470 // given wxWindows style
 471 bool wxSetWMDecorations(Window w, long style)
 472 {
 473 #if wxUSE_NANOX
 474     GR_WM_PROPERTIES wmProp;
 475
 476     wmProp.flags = 0;
 477     wmProp.props = 0;
 478
 479     if (style & wxRESIZE_BORDER)
 480     {
 481         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 482         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 483     }
 484
 485     if (style & wxSYSTEM_MENU)
 486     {
 487         wmProp.props |= GR_WM_PROPS_CLOSEBOX ;
 488         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 489     }
 490
 491     if ((style & wxCAPTION) ||
 492         (style & wxTINY_CAPTION_HORIZ) ||
 493         (style & wxTINY_CAPTION_VERT))
 494     {
 495         wmProp.props |= GR_WM_PROPS_CAPTION ;
 496         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 497
 498         // The default dialog style doesn't include any kind
 499         // of border, which is a bit odd. Anyway, inclusion
 500         // of a caption surely implies a border.
 501         style |= wxTHICK_FRAME;
 502     }
 503
 504     if (style & wxTHICK_FRAME)
 505     {
 506         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 507         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 508     }
 509
 510     if (style & wxSIMPLE_BORDER)
 511     {
 512         wmProp.props |= GR_WM_PROPS_BORDER ;
 513         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 514     }
 515
 516     if (style & wxMINIMIZE_BOX)
 517     {
 518     }
 519
 520     if (style & wxMAXIMIZE_BOX)
 521     {
 522         wmProp.props |= GR_WM_PROPS_MAXIMIZE ;
 523         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 524     }
 525
 526     if (((style & wxBORDER) != wxBORDER) && ((style & wxTHICK_FRAME) != wxTHICK_FRAME)
 527         && ((style & wxRESIZE_BORDER) != wxRESIZE_BORDER))
 528     {
 529         wmProp.props |= GR_WM_PROPS_NODECORATE ;
 530         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 531     }
 532
 533     GrSetWMProperties(w, & wmProp);
 534
 535 #else
 536
 537     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 538     if (mwm_wm_hints == 0)
 539        return FALSE;
 540
 541     MwmHints hints;
 542     hints.flags = MWM_HINTS_DECORATIONS | MWM_HINTS_FUNCTIONS;
 543     hints.decorations = 0;
 544     hints.functions = 0;
 545
 546     if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
 547     {
 548         // leave zeros
 549     }
 550     else
 551     {
 552         hints.decorations = MWM_DECOR_BORDER;
 553         hints.functions = MWM_FUNC_MOVE;
 554
 555         if ((style & wxCAPTION) != 0)
 556             hints.decorations |= MWM_DECOR_TITLE;
 557
 558         if ((style & wxSYSTEM_MENU) != 0)
 559         {
 560             hints.functions |= MWM_FUNC_CLOSE;
 561             hints.decorations |= MWM_DECOR_MENU;
 562         }
 563
 564         if ((style & wxMINIMIZE_BOX) != 0)
 565         {
 566             hints.functions |= MWM_FUNC_MINIMIZE;
 567             hints.decorations |= MWM_DECOR_MINIMIZE;
 568         }
 569
 570         if ((style & wxMAXIMIZE_BOX) != 0)
 571         {
 572             hints.functions |= MWM_FUNC_MAXIMIZE;
 573             hints.decorations |= MWM_DECOR_MAXIMIZE;
 574         }
 575
 576         if ((style & wxRESIZE_BORDER) != 0)
 577         {
 578             hints.functions |= MWM_FUNC_RESIZE;
 579             hints.decorations |= MWM_DECOR_RESIZEH;
 580         }
 581     }
 582
 583     XChangeProperty(wxGlobalDisplay(),
 584                     w,
 585                     mwm_wm_hints, mwm_wm_hints,
 586                     32, PropModeReplace,
 587                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 588
 589 #endif
 590     return TRUE;
 591 }
 592
 593 // For implementation purposes - sometimes decorations make the client area
 594 // smaller
 595 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 596 {
 597     // wxFrame::GetClientAreaOrigin
 598     // does the required calculation already.
 599     return wxPoint(0, 0);
 600 }
 601
 602 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 603 {
 604     XSync(wxGlobalDisplay(), False);
 605     wxWindowX11::DoGetClientSize(width, height);
 606 }
 607
 608 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 609 {
 610     wxWindowX11::DoSetClientSize(width, height);
 611
 612 #if !wxUSE_NANOX
 613     // Set the top-level window size
 614     XSizeHints size_hints;
 615     wxSize oldSize = GetSize();
 616     wxSize oldClientSize = GetClientSize();
 617
 618     size_hints.flags = PSize;
 619     size_hints.width = width + (oldSize.x - oldClientSize.x);
 620     size_hints.height = height + (oldSize.y - oldClientSize.y);
 621     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 622                        &size_hints);
 623
 624     // This seems to be necessary or resizes don't get performed
 625     XSync(wxGlobalDisplay(), False);
 626     XSync(wxGlobalDisplay(), False);
 627
 628 #if 0
 629     wxLogDebug("DoSetClientSize: Tried to set size to %d, %d", (int) size_hints.width, (int) size_hints.height);
 630
 631     XSync(wxGlobalDisplay(), False);
 632     wxSize newSize = GetSize();
 633     wxLogDebug("New size is %d, %d", (int) newSize.x, (int) newSize.y);
 634 #endif
 635 #endif
 636 }
 637
 638 void wxTopLevelWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 639 {
 640 #if 0
 641     // wxLogDebug( "Setting pos: %d, %d", x, y );
 642     wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
 643 #endif
 644     XSync(wxGlobalDisplay(), False);
 645     Window window = (Window) m_mainWidget;
 646     if (!window)
 647         return ;
 648
 649     Display *display = (Display*) GetXDisplay();
 650     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 651     Window parent_window = window,
 652         next_parent   = window;
 653
 654     // search for the parent that is child of ROOT, because the WM may
 655     // reparent twice and notify only the next parent (like FVWM)
 656     while (next_parent != root) {
 657         Window *theChildren;
 658 #if wxUSE_NANOX
 659         GR_COUNT n;
 660 #else
 661         unsigned int n;
 662 #endif
 663         parent_window = next_parent;
 664         XQueryTree(display, parent_window, &root,
 665             &next_parent, &theChildren, &n);
 666         XFree(theChildren); // not needed
 667     }
 668
 669     XWindowChanges windowChanges;
 670     windowChanges.x = x;
 671     windowChanges.y = y;
 672     windowChanges.width = width;
 673     windowChanges.height = height;
 674     windowChanges.stack_mode = 0;
 675     int valueMask = CWX | CWY | CWWidth | CWHeight;
 676
 677     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 678     {
 679         valueMask |= CWX;
 680     }
 681     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 682     {
 683         valueMask |= CWY;
 684     }
 685     if (width != -1)
 686     {
 687         windowChanges.width = wxMax(1, width);
 688         valueMask |= CWWidth;
 689     }
 690     if (height != -1)
 691     {
 692         windowChanges.height = wxMax(1, height);
 693         valueMask |= CWHeight;
 694     }
 695
 696     XConfigureWindow( display, parent_window, valueMask, &windowChanges );
 697
 698 #if !wxUSE_NANOX
 699     XSizeHints size_hints;
 700     size_hints.flags = 0;
 701     if (x > -1 && y > -1)
 702         size_hints.flags |= PPosition;
 703     if (width > -1 && height > -1)
 704         size_hints.flags |= PSize;
 705     size_hints.width = width;
 706     size_hints.height = height;
 707     size_hints.x = x;
 708     size_hints.y = y;
 709     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 710                        &size_hints);
 711
 712     // This seems to be necessary or resizes don't get performed.
 713     // Take them out (or even just one of them), and the About
 714     // box of the minimal sample probably won't be resized right.
 715     XSync(wxGlobalDisplay(), False);
 716     XSync(wxGlobalDisplay(), False);
 717 #endif
 718 }
 719
 720 void wxTopLevelWindowX11::DoGetPosition(int *x, int *y) const
 721 {
 722     XSync(wxGlobalDisplay(), False);
 723     Window window = (Window) m_mainWidget;
 724     if (!window)
 725         return ;
 726
 727     Display *display = (Display*) GetXDisplay();
 728     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 729     Window parent_window = window,
 730         next_parent   = window;
 731
 732     // search for the parent that is child of ROOT, because the WM may
 733     // reparent twice and notify only the next parent (like FVWM)
 734     while (next_parent != root) {
 735         Window *theChildren;
 736 #if wxUSE_NANOX
 737         GR_COUNT n;
 738 #else
 739         unsigned int n;
 740 #endif
 741         parent_window = next_parent;
 742         XQueryTree(display, parent_window, &root,
 743             &next_parent, &theChildren, &n);
 744         XFree(theChildren); // not needed
 745     }
 746 #if 0
 747     int xx, yy; unsigned int dummy;
 748     XGetGeometry(display, parent_window, &root,
 749                  &xx, &yy, &dummy, &dummy, &dummy, &dummy);
 750     if (x) *x = xx;
 751     if (y) *y = yy;
 752 #else
 753     XWindowAttributes attr;
 754     Status status = XGetWindowAttributes((Display*) GetXDisplay(), parent_window, & attr);
 755     if (status)
 756     {
 757         if (x) *x = attr.x;
 758         if (y) *y = attr.y;
 759     }
 760     else
 761     {
 762         if (x) *x = 0;
 763         if (y) *y = 0;
 764     }
 765 #endif
 766 }