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         CWOverrideRedirect |
 122         CWBorderPixel | CWBackPixel;
 123
 124     xattributes.background_pixel = m_backgroundColour.GetPixel();
 125     xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
 126
 127     // TODO: if we want no border, caption etc.,
 128     // I think we set this to True to remove decorations
 129     // No. RR.
 130     xattributes.override_redirect = False;
 131 #endif
 132
 133 #if wxUSE_NANOX
 134     long backColor, foreColor;
 135     backColor = GR_RGB(m_backgroundColour.Red(), m_backgroundColour.Green(), m_backgroundColour.Blue());
 136     foreColor = GR_RGB(m_foregroundColour.Red(), m_foregroundColour.Green(), m_foregroundColour.Blue());
 137
 138     Window xwindow = XCreateWindowWithColor( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 139                                     0, 0, InputOutput, xvisual, backColor, foreColor);
 140 #else
 141     Window xwindow = XCreateWindow( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 142                                     0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 143 #endif
 144     m_mainWidget = (WXWindow) xwindow;
 145
 146     int extraFlags = 0;
 147 #if wxUSE_NANOX
 148     extraFlags |= GR_EVENT_MASK_CLOSE_REQ;
 149 #endif
 150
 151     XSelectInput( xdisplay, xwindow,
 152                   extraFlags |
 153                   ExposureMask |
 154                   KeyPressMask |
 155                   KeyReleaseMask |
 156                   ButtonPressMask |
 157                   ButtonReleaseMask |
 158                   ButtonMotionMask |
 159                   EnterWindowMask |
 160                   LeaveWindowMask |
 161                   PointerMotionMask |
 162                   KeymapStateMask |
 163                   FocusChangeMask |
 164                   ColormapChangeMask |
 165                   StructureNotifyMask |
 166                   PropertyChangeMask
 167                   );
 168
 169     wxAddWindowToTable( xwindow, (wxWindow*) this );
 170
 171     // Set background to None which will prevent X11 from clearing the
 172     // background completely.
 173     XSetWindowBackgroundPixmap( xdisplay, xwindow, None );
 174
 175 #if !wxUSE_NANOX
 176     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 177     {
 178         if (GetParent() && GetParent()->GetMainWindow())
 179         {
 180              Window xparentwindow = (Window) GetParent()->GetMainWindow();
 181              XSetTransientForHint( xdisplay, xwindow, xparentwindow );
 182         }
 183     }
 184
 185     size_hints.flags = PSize | PPosition;
 186     size_hints.x = pos2.x;
 187     size_hints.y = pos2.y;
 188     size_hints.width = size2.x;
 189     size_hints.height = size2.y;
 190     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
 191
 192     XWMHints wm_hints;
 193     wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
 194     wm_hints.input = True;
 195     wm_hints.initial_state = NormalState;
 196     XSetWMHints( xdisplay, xwindow, &wm_hints);
 197
 198     Atom wm_protocols[2];
 199     wm_protocols[0] = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False );
 200     wm_protocols[1] = XInternAtom( xdisplay, "WM_TAKE_FOCUS", False );
 201     XSetWMProtocols( xdisplay, xwindow, wm_protocols, 2);
 202 #endif
 203
 204     wxSetWMDecorations( xwindow, style);
 205
 206     SetTitle(title);
 207
 208     return TRUE;
 209 }
 210
 211 wxTopLevelWindowX11::~wxTopLevelWindowX11()
 212 {
 213     wxTopLevelWindows.DeleteObject(this);
 214
 215     // If this is the last top-level window, exit.
 216     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 217     {
 218         wxTheApp->SetTopWindow(NULL);
 219
 220         if (wxTheApp->GetExitOnFrameDelete())
 221         {
 222             // Signal to the app that we're going to close
 223             wxTheApp->ExitMainLoop();
 224         }
 225     }
 226 }
 227
 228 void wxTopLevelWindowX11::OnInternalIdle()
 229 {
 230     wxWindow::OnInternalIdle();
 231
 232     if (m_needResizeInIdle)
 233     {
 234         wxSizeEvent event( GetClientSize(), GetId() );
 235         event.SetEventObject( this );
 236         GetEventHandler()->ProcessEvent( event );
 237     }
 238 }
 239
 240 // ----------------------------------------------------------------------------
 241 // wxTopLevelWindowX11 showing
 242 // ----------------------------------------------------------------------------
 243
 244 bool wxTopLevelWindowX11::Show(bool show)
 245 {
 246     // Nano-X has to force a size event,
 247     // else there's no initial size.
 248 #if wxUSE_NANOX
 249     if (show)
 250 #else
 251     if (show && m_needResizeInIdle)
 252 #endif
 253     {
 254         wxSizeEvent event(GetSize(), GetId());
 255         event.SetEventObject(this);
 256         GetEventHandler()->ProcessEvent(event);
 257     }
 258
 259     return wxWindowX11::Show(show);
 260 }
 261
 262 // ----------------------------------------------------------------------------
 263 // wxTopLevelWindowX11 maximize/minimize
 264 // ----------------------------------------------------------------------------
 265
 266 void wxTopLevelWindowX11::Maximize(bool maximize)
 267 {
 268     // TODO
 269 }
 270
 271 bool wxTopLevelWindowX11::IsMaximized() const
 272 {
 273     // TODO
 274     return TRUE;
 275 }
 276
 277 void wxTopLevelWindowX11::Iconize(bool iconize)
 278 {
 279     if (!m_iconized && GetMainWindow())
 280     {
 281         if (XIconifyWindow(wxGlobalDisplay(),
 282             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 283             m_iconized = TRUE;
 284     }
 285 }
 286
 287 bool wxTopLevelWindowX11::IsIconized() const
 288 {
 289     return m_iconized;
 290 }
 291
 292 void wxTopLevelWindowX11::Restore()
 293 {
 294     // This is the way to deiconify the window, according to the X FAQ
 295     if (m_iconized && GetMainWindow())
 296     {
 297         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 298         m_iconized = FALSE;
 299     }
 300 }
 301
 302 // ----------------------------------------------------------------------------
 303 // wxTopLevelWindowX11 fullscreen
 304 // ----------------------------------------------------------------------------
 305
 306 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 307 {
 308     if (show)
 309     {
 310         if (IsFullScreen())
 311             return FALSE;
 312
 313         m_fsIsShowing = TRUE;
 314         m_fsStyle = style;
 315
 316         // TODO
 317
 318         return TRUE;
 319     }
 320     else
 321     {
 322         if (!IsFullScreen())
 323             return FALSE;
 324
 325         m_fsIsShowing = FALSE;
 326
 327         // TODO
 328         return TRUE;
 329     }
 330 }
 331
 332 // ----------------------------------------------------------------------------
 333 // wxTopLevelWindowX11 misc
 334 // ----------------------------------------------------------------------------
 335
 336 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 337 {
 338     // this sets m_icon
 339     wxTopLevelWindowBase::SetIcon(icon);
 340
 341     if (icon.Ok() && GetMainWindow())
 342     {
 343 #if wxUSE_NANOX
 344 #else
 345         XWMHints *wmHints = XAllocWMHints();
 346         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 347
 348         wmHints->flags = IconPixmapHint;
 349
 350         if (icon.GetMask())
 351         {
 352             wmHints->flags |= IconMaskHint;
 353             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetBitmap();
 354         }
 355
 356         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(), wmHints);
 357         XFree(wmHints);
 358 #endif
 359     }
 360 }
 361
 362 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 363 {
 364     m_title = title;
 365     if (GetMainWindow())
 366     {
 367         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 368             (const char*) title);
 369         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 370             (const char*) title);
 371
 372         // Use this if the platform doesn't supply the above functions.
 373 #if 0
 374         XTextProperty textProperty;
 375         textProperty.value = (unsigned char*) title;
 376         textProperty.encoding = XA_STRING;
 377         textProperty.format = 8;
 378         textProperty.nitems = 1;
 379
 380         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 381             & textProperty, WM_NAME);
 382 #endif
 383     }
 384 }
 385
 386 wxString wxTopLevelWindowX11::GetTitle() const
 387 {
 388     return m_title;
 389 }
 390
 391 #ifndef MWM_DECOR_BORDER
 392 /* bit definitions for MwmHints.flags */
 393 #define MWM_HINTS_FUNCTIONS (1L << 0)
 394 #define MWM_HINTS_DECORATIONS (1L << 1)
 395 #define MWM_HINTS_INPUT_MODE (1L << 2)
 396 #define MWM_HINTS_STATUS (1L << 3)
 397
 398 #define MWM_DECOR_ALL           (1L << 0)
 399 #define MWM_DECOR_BORDER        (1L << 1)
 400 #define MWM_DECOR_RESIZEH       (1L << 2)
 401 #define MWM_DECOR_TITLE         (1L << 3)
 402 #define MWM_DECOR_MENU          (1L << 4)
 403 #define MWM_DECOR_MINIMIZE      (1L << 5)
 404 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 405 #endif
 406
 407 struct MwmHints {
 408     long flags;
 409     long functions;
 410     long decorations;
 411     long input_mode;
 412 };
 413
 414 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 415
 416 // Set the window manager decorations according to the
 417 // given wxWindows style
 418 bool wxSetWMDecorations(Window w, long style)
 419 {
 420 #if wxUSE_NANOX
 421     GR_WM_PROPERTIES wmProp;
 422
 423     wmProp.flags = 0;
 424     wmProp.props = 0;
 425
 426     if (style & wxRESIZE_BORDER)
 427     {
 428         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 429         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 430     }
 431
 432     if (style & wxSYSTEM_MENU)
 433     {
 434         wmProp.props |= GR_WM_PROPS_CLOSEBOX ;
 435         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 436     }
 437
 438     if ((style & wxCAPTION) ||
 439         (style & wxTINY_CAPTION_HORIZ) ||
 440         (style & wxTINY_CAPTION_VERT))
 441     {
 442         wmProp.props |= GR_WM_PROPS_CAPTION ;
 443         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 444
 445         // The default dialog style doesn't include any kind
 446         // of border, which is a bit odd. Anyway, inclusion
 447         // of a caption surely implies a border.
 448         style |= wxTHICK_FRAME;
 449     }
 450
 451     if (style & wxTHICK_FRAME)
 452     {
 453         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 454         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 455     }
 456
 457     if (style & wxSIMPLE_BORDER)
 458     {
 459         wmProp.props |= GR_WM_PROPS_BORDER ;
 460         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 461     }
 462
 463     if (style & wxMINIMIZE_BOX)
 464     {
 465     }
 466
 467     if (style & wxMAXIMIZE_BOX)
 468     {
 469         wmProp.props |= GR_WM_PROPS_MAXIMIZE ;
 470         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 471     }
 472
 473     if (((style & wxBORDER) != wxBORDER) && ((style & wxTHICK_FRAME) != wxTHICK_FRAME)
 474         && ((style & wxRESIZE_BORDER) != wxRESIZE_BORDER))
 475     {
 476         wmProp.props |= GR_WM_PROPS_NODECORATE ;
 477         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 478     }
 479
 480     GrSetWMProperties(w, & wmProp);
 481
 482 #else
 483     if (!wxMWMIsRunning(w))
 484         return FALSE;
 485
 486     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 487     MwmHints hints;
 488     hints.flags = 0;
 489     hints.decorations = 0;
 490
 491     if (style & wxRESIZE_BORDER)
 492     {
 493         // wxLogDebug("MWM_DECOR_RESIZEH");
 494         hints.flags |= MWM_HINTS_DECORATIONS;
 495         hints.decorations |= MWM_DECOR_RESIZEH;
 496     }
 497
 498     if (style & wxSYSTEM_MENU)
 499     {
 500         // wxLogDebug("MWM_DECOR_MENU");
 501         hints.flags |= MWM_HINTS_DECORATIONS;
 502         hints.decorations |= MWM_DECOR_MENU;
 503     }
 504
 505     if ((style & wxCAPTION) ||
 506         (style & wxTINY_CAPTION_HORIZ) ||
 507         (style & wxTINY_CAPTION_VERT))
 508     {
 509         // wxLogDebug("MWM_DECOR_TITLE");
 510         hints.flags |= MWM_HINTS_DECORATIONS;
 511         hints.decorations |= MWM_DECOR_TITLE;
 512     }
 513
 514     if ((style & wxTHICK_FRAME) || (style & wxCAPTION))
 515     {
 516         // wxLogDebug("MWM_DECOR_BORDER");
 517         hints.flags |= MWM_HINTS_DECORATIONS;
 518         hints.decorations |= MWM_DECOR_BORDER;
 519     }
 520
 521     if (style & wxMINIMIZE_BOX)
 522     {
 523         // wxLogDebug("MWM_DECOR_MINIMIZE");
 524         hints.flags |= MWM_HINTS_DECORATIONS;
 525         hints.decorations |= MWM_DECOR_MINIMIZE;
 526     }
 527
 528     if (style & wxMAXIMIZE_BOX)
 529     {
 530         // wxLogDebug("MWM_DECOR_MAXIMIZE");
 531         hints.flags |= MWM_HINTS_DECORATIONS;
 532         hints.decorations |= MWM_DECOR_MAXIMIZE;
 533     }
 534
 535     XChangeProperty(wxGlobalDisplay(),
 536                     w,
 537                     mwm_wm_hints, mwm_wm_hints,
 538                     32, PropModeReplace,
 539                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 540
 541 #endif
 542     return TRUE;
 543 }
 544
 545 bool wxMWMIsRunning(Window w)
 546 {
 547 #if wxUSE_NANOX
 548     return FALSE;
 549 #else
 550     Display *dpy = (Display*)wxGetDisplay();
 551     Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
 552
 553     unsigned long length, bytesafter;
 554     unsigned char value[20];
 555     unsigned char *ptr = &value[0];
 556     int ret, format;
 557     Atom type;
 558
 559     type = format = length = 0;
 560     value[0] = 0;
 561
 562     ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
 563             0L, 2, False, motifWmInfo,
 564             &type, &format, &length, &bytesafter, &ptr);
 565
 566     return (ret == Success);
 567 #endif
 568 }
 569
 570 // For implementation purposes - sometimes decorations make the client area
 571 // smaller
 572 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 573 {
 574     // wxFrame::GetClientAreaOrigin
 575     // does the required calculation already.
 576     return wxPoint(0, 0);
 577 }
 578
 579 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 580 {
 581     XSync(wxGlobalDisplay(), False);
 582     wxWindowX11::DoGetClientSize(width, height);
 583 }
 584
 585 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 586 {
 587     wxWindowX11::DoSetClientSize(width, height);
 588
 589 #if !wxUSE_NANOX
 590     // Set the top-level window size
 591     XSizeHints size_hints;
 592     wxSize oldSize = GetSize();
 593     wxSize oldClientSize = GetClientSize();
 594
 595     size_hints.flags = PSize;
 596     size_hints.width = width + (oldSize.x - oldClientSize.x);
 597     size_hints.height = height + (oldSize.y - oldClientSize.y);
 598     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 599                        &size_hints);
 600
 601     // This seems to be necessary or resizes don't get performed
 602     XSync(wxGlobalDisplay(), False);
 603     XSync(wxGlobalDisplay(), False);
 604
 605 #if 0
 606     wxLogDebug("DoSetClientSize: Tried to set size to %d, %d", (int) size_hints.width, (int) size_hints.height);
 607
 608     XSync(wxGlobalDisplay(), False);
 609     wxSize newSize = GetSize();
 610     wxLogDebug("New size is %d, %d", (int) newSize.x, (int) newSize.y);
 611 #endif
 612 #endif
 613 }
 614
 615 void wxTopLevelWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 616 {
 617 #if 0
 618     // wxLogDebug( "Setting pos: %d, %d", x, y );
 619     wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
 620 #endif
 621     XSync(wxGlobalDisplay(), False);
 622     Window window = (Window) m_mainWidget;
 623     if (!window)
 624         return ;
 625
 626     Display *display = (Display*) GetXDisplay();
 627     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 628     Window parent_window = window,
 629         next_parent   = window;
 630
 631     // search for the parent that is child of ROOT, because the WM may
 632     // reparent twice and notify only the next parent (like FVWM)
 633     while (next_parent != root) {
 634         Window *theChildren;
 635 #if wxUSE_NANOX
 636         GR_COUNT n;
 637 #else
 638         unsigned int n;
 639 #endif
 640         parent_window = next_parent;
 641         XQueryTree(display, parent_window, &root,
 642             &next_parent, &theChildren, &n);
 643         XFree(theChildren); // not needed
 644     }
 645
 646     XWindowChanges windowChanges;
 647     windowChanges.x = x;
 648     windowChanges.y = y;
 649     windowChanges.width = width;
 650     windowChanges.height = height;
 651     windowChanges.stack_mode = 0;
 652     int valueMask = CWX | CWY | CWWidth | CWHeight;
 653
 654     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 655     {
 656         valueMask |= CWX;
 657     }
 658     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 659     {
 660         valueMask |= CWY;
 661     }
 662     if (width != -1)
 663     {
 664         windowChanges.width = wxMax(1, width);
 665         valueMask |= CWWidth;
 666     }
 667     if (height != -1)
 668     {
 669         windowChanges.height = wxMax(1, height);
 670         valueMask |= CWHeight;
 671     }
 672
 673     XConfigureWindow( display, parent_window, valueMask, &windowChanges );
 674
 675 #if !wxUSE_NANOX
 676     XSizeHints size_hints;
 677     size_hints.flags = 0;
 678     if (x > -1 && y > -1)
 679         size_hints.flags |= PPosition;
 680     if (width > -1 && height > -1)
 681         size_hints.flags |= PSize;
 682     size_hints.width = width;
 683     size_hints.height = height;
 684     size_hints.x = x;
 685     size_hints.y = y;
 686     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 687                        &size_hints);
 688
 689     // This seems to be necessary or resizes don't get performed.
 690     // Take them out (or even just one of them), and the About
 691     // box of the minimal sample probably won't be resized right.
 692     XSync(wxGlobalDisplay(), False);
 693     XSync(wxGlobalDisplay(), False);
 694 #endif
 695 }
 696
 697 void wxTopLevelWindowX11::DoGetPosition(int *x, int *y) const
 698 {
 699     XSync(wxGlobalDisplay(), False);
 700     Window window = (Window) m_mainWidget;
 701     if (!window)
 702         return ;
 703
 704     Display *display = (Display*) GetXDisplay();
 705     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 706     Window parent_window = window,
 707         next_parent   = window;
 708
 709     // search for the parent that is child of ROOT, because the WM may
 710     // reparent twice and notify only the next parent (like FVWM)
 711     while (next_parent != root) {
 712         Window *theChildren;
 713 #if wxUSE_NANOX
 714         GR_COUNT n;
 715 #else
 716         unsigned int n;
 717 #endif
 718         parent_window = next_parent;
 719         XQueryTree(display, parent_window, &root,
 720             &next_parent, &theChildren, &n);
 721         XFree(theChildren); // not needed
 722     }
 723 #if 0
 724     int xx, yy; unsigned int dummy;
 725     XGetGeometry(display, parent_window, &root,
 726                  &xx, &yy, &dummy, &dummy, &dummy, &dummy);
 727     if (x) *x = xx;
 728     if (y) *y = yy;
 729 #else
 730     XWindowAttributes attr;
 731     Status status = XGetWindowAttributes((Display*) GetXDisplay(), parent_window, & attr);
 732     if (status)
 733     {
 734         if (x) *x = attr.x;
 735         if (y) *y = attr.y;
 736     }
 737     else
 738     {
 739         if (x) *x = 0;
 740         if (y) *y = 0;
 741     }
 742 #endif
 743 }