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     // TODO: if we want no border, caption etc.,
 133     // I think we set this to True to remove decorations
 134     // No. RR.
 135     // Yes :-) JACS (because some WMs don't respect
 136     // the hints)
 137     // xattributes.override_redirect = (style & wxNO_BORDER) ? True : False;
 138
 139     xattributes_mask |= CWEventMask;
 140     xattributes.event_mask =
 141         ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
 142         ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
 143         KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
 144         PropertyChangeMask;
 145
 146     Window xwindow = XCreateWindow( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 147                                     0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 148 #else
 149     long backColor, foreColor;
 150     backColor = GR_RGB(m_backgroundColour.Red(), m_backgroundColour.Green(), m_backgroundColour.Blue());
 151     foreColor = GR_RGB(m_foregroundColour.Red(), m_foregroundColour.Green(), m_foregroundColour.Blue());
 152
 153     Window xwindow = XCreateWindowWithColor( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y,
 154                                     0, 0, InputOutput, xvisual, backColor, foreColor);
 155 #endif
 156
 157     m_mainWidget = (WXWindow) xwindow;
 158
 159 #if wxUSE_NANOX
 160     XSelectInput( xdisplay, xwindow,
 161                   GR_EVENT_MASK_CLOSE_REQ |
 162                   ExposureMask |
 163                   KeyPressMask |
 164                   KeyReleaseMask |
 165                   ButtonPressMask |
 166                   ButtonReleaseMask |
 167                   ButtonMotionMask |
 168                   EnterWindowMask |
 169                   LeaveWindowMask |
 170                   PointerMotionMask |
 171                   KeymapStateMask |
 172                   FocusChangeMask |
 173                   ColormapChangeMask |
 174                   StructureNotifyMask |
 175                   PropertyChangeMask
 176                   );
 177 #endif
 178
 179     wxAddWindowToTable( xwindow, (wxWindow*) this );
 180
 181     // Set background to None which will prevent X11 from clearing the
 182     // background completely.
 183     XSetWindowBackgroundPixmap( xdisplay, xwindow, None );
 184
 185 #if !wxUSE_NANOX
 186     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 187     {
 188         if (GetParent() && GetParent()->GetMainWindow())
 189         {
 190              Window xparentwindow = (Window) GetParent()->GetMainWindow();
 191              XSetTransientForHint( xdisplay, xwindow, xparentwindow );
 192         }
 193     }
 194
 195     size_hints.flags = PSize | PPosition;
 196     size_hints.x = pos2.x;
 197     size_hints.y = pos2.y;
 198     size_hints.width = size2.x;
 199     size_hints.height = size2.y;
 200     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
 201
 202     XWMHints wm_hints;
 203     wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
 204     wm_hints.input = True;
 205     wm_hints.initial_state = NormalState;
 206     XSetWMHints( xdisplay, xwindow, &wm_hints);
 207
 208     Atom wm_protocols[2];
 209     wm_protocols[0] = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False );
 210     wm_protocols[1] = XInternAtom( xdisplay, "WM_TAKE_FOCUS", False );
 211     XSetWMProtocols( xdisplay, xwindow, wm_protocols, 2);
 212
 213 #if 0 // TODO
 214     // You will need a compliant window manager for this to work
 215     // (e.g. sawfish/enlightenment/kde/icewm/windowmaker)
 216     if (style & wxSTAY_ON_TOP)
 217     {
 218         CARD32 data = 4; // or should this be 6? According to http://developer.gnome.org/doc/standards/wm/c44.html
 219         XChangeProperty (xdisplay,
 220                     xwindow,
 221                     XInternAtom (xdisplay, "_WIN_LAYER", False),
 222                     XA_CARDINAL,
 223                     32,
 224                     PropModeReplace,
 225                     (unsigned char *)&data,
 226                     1);
 227     }
 228 #endif
 229
 230 #endif
 231
 232     wxSetWMDecorations( xwindow, style);
 233
 234     SetTitle(title);
 235
 236     return TRUE;
 237 }
 238
 239 wxTopLevelWindowX11::~wxTopLevelWindowX11()
 240 {
 241     wxTopLevelWindows.DeleteObject(this);
 242
 243     // If this is the last top-level window, exit.
 244     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 245     {
 246         wxTheApp->SetTopWindow(NULL);
 247
 248         if (wxTheApp->GetExitOnFrameDelete())
 249         {
 250             // Signal to the app that we're going to close
 251             wxTheApp->ExitMainLoop();
 252         }
 253     }
 254 }
 255
 256 void wxTopLevelWindowX11::OnInternalIdle()
 257 {
 258     wxWindow::OnInternalIdle();
 259
 260     if (m_needResizeInIdle)
 261     {
 262         wxSizeEvent event( GetClientSize(), GetId() );
 263         event.SetEventObject( this );
 264         GetEventHandler()->ProcessEvent( event );
 265
 266         m_needResizeInIdle = FALSE;
 267     }
 268 }
 269
 270 // ----------------------------------------------------------------------------
 271 // wxTopLevelWindowX11 showing
 272 // ----------------------------------------------------------------------------
 273
 274 bool wxTopLevelWindowX11::Show(bool show)
 275 {
 276     // Nano-X has to force a size event,
 277     // else there's no initial size.
 278 #if wxUSE_NANOX
 279     if (show)
 280 #else
 281     if (show && m_needResizeInIdle)
 282 #endif
 283     {
 284         wxSizeEvent event(GetSize(), GetId());
 285         event.SetEventObject(this);
 286         GetEventHandler()->ProcessEvent(event);
 287
 288         m_needResizeInIdle = FALSE;
 289     }
 290
 291     if (show)
 292     {
 293         // This does the layout _before_ the
 294         // window is shown, else the items are
 295         // drawn first at the wrong positions,
 296         // then at the correct positions.
 297         if (GetAutoLayout())
 298         {
 299             Layout();
 300         }
 301     }
 302
 303     return wxWindowX11::Show(show);
 304 }
 305
 306 // ----------------------------------------------------------------------------
 307 // wxTopLevelWindowX11 maximize/minimize
 308 // ----------------------------------------------------------------------------
 309
 310 void wxTopLevelWindowX11::Maximize(bool maximize)
 311 {
 312     // TODO
 313 }
 314
 315 bool wxTopLevelWindowX11::IsMaximized() const
 316 {
 317     // TODO
 318     return TRUE;
 319 }
 320
 321 void wxTopLevelWindowX11::Iconize(bool iconize)
 322 {
 323     if (!m_iconized && GetMainWindow())
 324     {
 325         if (XIconifyWindow(wxGlobalDisplay(),
 326             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 327             m_iconized = TRUE;
 328     }
 329 }
 330
 331 bool wxTopLevelWindowX11::IsIconized() const
 332 {
 333     return m_iconized;
 334 }
 335
 336 void wxTopLevelWindowX11::Restore()
 337 {
 338     // This is the way to deiconify the window, according to the X FAQ
 339     if (m_iconized && GetMainWindow())
 340     {
 341         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 342         m_iconized = FALSE;
 343     }
 344 }
 345
 346 // ----------------------------------------------------------------------------
 347 // wxTopLevelWindowX11 fullscreen
 348 // ----------------------------------------------------------------------------
 349
 350 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 351 {
 352     if (show)
 353     {
 354         if (IsFullScreen())
 355             return FALSE;
 356
 357         m_fsIsShowing = TRUE;
 358         m_fsStyle = style;
 359
 360         // TODO
 361
 362         return TRUE;
 363     }
 364     else
 365     {
 366         if (!IsFullScreen())
 367             return FALSE;
 368
 369         m_fsIsShowing = FALSE;
 370
 371         // TODO
 372         return TRUE;
 373     }
 374 }
 375
 376 // ----------------------------------------------------------------------------
 377 // wxTopLevelWindowX11 misc
 378 // ----------------------------------------------------------------------------
 379
 380 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 381 {
 382     // this sets m_icon
 383     wxTopLevelWindowBase::SetIcon(icon);
 384
 385     if (icon.Ok() && GetMainWindow())
 386     {
 387 #if wxUSE_NANOX
 388 #else
 389         XWMHints *wmHints = XAllocWMHints();
 390         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 391
 392         wmHints->flags = IconPixmapHint;
 393
 394         if (icon.GetMask())
 395         {
 396             wmHints->flags |= IconMaskHint;
 397             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetBitmap();
 398         }
 399
 400         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(), wmHints);
 401         XFree(wmHints);
 402 #endif
 403     }
 404 }
 405
 406 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 407 {
 408     m_title = title;
 409     if (GetMainWindow())
 410     {
 411         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 412             (const char*) title);
 413         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 414             (const char*) title);
 415
 416         // Use this if the platform doesn't supply the above functions.
 417 #if 0
 418         XTextProperty textProperty;
 419         textProperty.value = (unsigned char*) title;
 420         textProperty.encoding = XA_STRING;
 421         textProperty.format = 8;
 422         textProperty.nitems = 1;
 423
 424         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 425             & textProperty, WM_NAME);
 426 #endif
 427     }
 428 }
 429
 430 wxString wxTopLevelWindowX11::GetTitle() const
 431 {
 432     return m_title;
 433 }
 434
 435 #ifndef MWM_DECOR_BORDER
 436 /* bit definitions for MwmHints.flags */
 437 #define MWM_HINTS_FUNCTIONS (1L << 0)
 438 #define MWM_HINTS_DECORATIONS (1L << 1)
 439 #define MWM_HINTS_INPUT_MODE (1L << 2)
 440 #define MWM_HINTS_STATUS (1L << 3)
 441
 442 #define MWM_DECOR_ALL           (1L << 0)
 443 #define MWM_DECOR_BORDER        (1L << 1)
 444 #define MWM_DECOR_RESIZEH       (1L << 2)
 445 #define MWM_DECOR_TITLE         (1L << 3)
 446 #define MWM_DECOR_MENU          (1L << 4)
 447 #define MWM_DECOR_MINIMIZE      (1L << 5)
 448 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 449 #endif
 450
 451 struct MwmHints {
 452     long flags;
 453     long functions;
 454     long decorations;
 455     long input_mode;
 456 };
 457
 458 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 459
 460 // Set the window manager decorations according to the
 461 // given wxWindows style
 462 bool wxSetWMDecorations(Window w, long style)
 463 {
 464 #if wxUSE_NANOX
 465     GR_WM_PROPERTIES wmProp;
 466
 467     wmProp.flags = 0;
 468     wmProp.props = 0;
 469
 470     if (style & wxRESIZE_BORDER)
 471     {
 472         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 473         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 474     }
 475
 476     if (style & wxSYSTEM_MENU)
 477     {
 478         wmProp.props |= GR_WM_PROPS_CLOSEBOX ;
 479         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 480     }
 481
 482     if ((style & wxCAPTION) ||
 483         (style & wxTINY_CAPTION_HORIZ) ||
 484         (style & wxTINY_CAPTION_VERT))
 485     {
 486         wmProp.props |= GR_WM_PROPS_CAPTION ;
 487         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 488
 489         // The default dialog style doesn't include any kind
 490         // of border, which is a bit odd. Anyway, inclusion
 491         // of a caption surely implies a border.
 492         style |= wxTHICK_FRAME;
 493     }
 494
 495     if (style & wxTHICK_FRAME)
 496     {
 497         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 498         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 499     }
 500
 501     if (style & wxSIMPLE_BORDER)
 502     {
 503         wmProp.props |= GR_WM_PROPS_BORDER ;
 504         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 505     }
 506
 507     if (style & wxMINIMIZE_BOX)
 508     {
 509     }
 510
 511     if (style & wxMAXIMIZE_BOX)
 512     {
 513         wmProp.props |= GR_WM_PROPS_MAXIMIZE ;
 514         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 515     }
 516
 517     if (((style & wxBORDER) != wxBORDER) && ((style & wxTHICK_FRAME) != wxTHICK_FRAME)
 518         && ((style & wxRESIZE_BORDER) != wxRESIZE_BORDER))
 519     {
 520         wmProp.props |= GR_WM_PROPS_NODECORATE ;
 521         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 522     }
 523
 524     GrSetWMProperties(w, & wmProp);
 525
 526 #else
 527     if (!wxMWMIsRunning(w))
 528         return FALSE;
 529
 530     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 531     MwmHints hints;
 532     hints.flags = 0;
 533     hints.decorations = 0;
 534
 535     if (style & wxRESIZE_BORDER)
 536     {
 537         // wxLogDebug("MWM_DECOR_RESIZEH");
 538         hints.flags |= MWM_HINTS_DECORATIONS;
 539         hints.decorations |= MWM_DECOR_RESIZEH;
 540     }
 541
 542     if (style & wxSYSTEM_MENU)
 543     {
 544         // wxLogDebug("MWM_DECOR_MENU");
 545         hints.flags |= MWM_HINTS_DECORATIONS;
 546         hints.decorations |= MWM_DECOR_MENU;
 547     }
 548
 549     if ((style & wxCAPTION) ||
 550         (style & wxTINY_CAPTION_HORIZ) ||
 551         (style & wxTINY_CAPTION_VERT))
 552     {
 553         // wxLogDebug("MWM_DECOR_TITLE");
 554         hints.flags |= MWM_HINTS_DECORATIONS;
 555         hints.decorations |= MWM_DECOR_TITLE;
 556     }
 557
 558     if ((style & wxTHICK_FRAME) || (style & wxCAPTION))
 559     {
 560         // wxLogDebug("MWM_DECOR_BORDER");
 561         hints.flags |= MWM_HINTS_DECORATIONS;
 562         hints.decorations |= MWM_DECOR_BORDER;
 563     }
 564
 565     if (style & wxMINIMIZE_BOX)
 566     {
 567         // wxLogDebug("MWM_DECOR_MINIMIZE");
 568         hints.flags |= MWM_HINTS_DECORATIONS;
 569         hints.decorations |= MWM_DECOR_MINIMIZE;
 570     }
 571
 572     if (style & wxMAXIMIZE_BOX)
 573     {
 574         // wxLogDebug("MWM_DECOR_MAXIMIZE");
 575         hints.flags |= MWM_HINTS_DECORATIONS;
 576         hints.decorations |= MWM_DECOR_MAXIMIZE;
 577     }
 578
 579     XChangeProperty(wxGlobalDisplay(),
 580                     w,
 581                     mwm_wm_hints, mwm_wm_hints,
 582                     32, PropModeReplace,
 583                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 584
 585 #endif
 586     return TRUE;
 587 }
 588
 589 bool wxMWMIsRunning(Window w)
 590 {
 591 #if wxUSE_NANOX
 592     return FALSE;
 593 #else
 594     Display *dpy = (Display*)wxGetDisplay();
 595     Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
 596
 597     unsigned long length, bytesafter;
 598     unsigned char value[20];
 599     unsigned char *ptr = &value[0];
 600     int ret, format;
 601     Atom type;
 602
 603     type = format = length = 0;
 604     value[0] = 0;
 605
 606     ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
 607             0L, 2, False, motifWmInfo,
 608             &type, &format, &length, &bytesafter, &ptr);
 609
 610     return (ret == Success);
 611 #endif
 612 }
 613
 614 // For implementation purposes - sometimes decorations make the client area
 615 // smaller
 616 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 617 {
 618     // wxFrame::GetClientAreaOrigin
 619     // does the required calculation already.
 620     return wxPoint(0, 0);
 621 }
 622
 623 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 624 {
 625     XSync(wxGlobalDisplay(), False);
 626     wxWindowX11::DoGetClientSize(width, height);
 627 }
 628
 629 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 630 {
 631     wxWindowX11::DoSetClientSize(width, height);
 632
 633 #if !wxUSE_NANOX
 634     // Set the top-level window size
 635     XSizeHints size_hints;
 636     wxSize oldSize = GetSize();
 637     wxSize oldClientSize = GetClientSize();
 638
 639     size_hints.flags = PSize;
 640     size_hints.width = width + (oldSize.x - oldClientSize.x);
 641     size_hints.height = height + (oldSize.y - oldClientSize.y);
 642     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 643                        &size_hints);
 644
 645     // This seems to be necessary or resizes don't get performed
 646     XSync(wxGlobalDisplay(), False);
 647     XSync(wxGlobalDisplay(), False);
 648
 649 #if 0
 650     wxLogDebug("DoSetClientSize: Tried to set size to %d, %d", (int) size_hints.width, (int) size_hints.height);
 651
 652     XSync(wxGlobalDisplay(), False);
 653     wxSize newSize = GetSize();
 654     wxLogDebug("New size is %d, %d", (int) newSize.x, (int) newSize.y);
 655 #endif
 656 #endif
 657 }
 658
 659 void wxTopLevelWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 660 {
 661 #if 0
 662     // wxLogDebug( "Setting pos: %d, %d", x, y );
 663     wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
 664 #endif
 665     XSync(wxGlobalDisplay(), False);
 666     Window window = (Window) m_mainWidget;
 667     if (!window)
 668         return ;
 669
 670     Display *display = (Display*) GetXDisplay();
 671     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 672     Window parent_window = window,
 673         next_parent   = window;
 674
 675     // search for the parent that is child of ROOT, because the WM may
 676     // reparent twice and notify only the next parent (like FVWM)
 677     while (next_parent != root) {
 678         Window *theChildren;
 679 #if wxUSE_NANOX
 680         GR_COUNT n;
 681 #else
 682         unsigned int n;
 683 #endif
 684         parent_window = next_parent;
 685         XQueryTree(display, parent_window, &root,
 686             &next_parent, &theChildren, &n);
 687         XFree(theChildren); // not needed
 688     }
 689
 690     XWindowChanges windowChanges;
 691     windowChanges.x = x;
 692     windowChanges.y = y;
 693     windowChanges.width = width;
 694     windowChanges.height = height;
 695     windowChanges.stack_mode = 0;
 696     int valueMask = CWX | CWY | CWWidth | CWHeight;
 697
 698     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 699     {
 700         valueMask |= CWX;
 701     }
 702     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 703     {
 704         valueMask |= CWY;
 705     }
 706     if (width != -1)
 707     {
 708         windowChanges.width = wxMax(1, width);
 709         valueMask |= CWWidth;
 710     }
 711     if (height != -1)
 712     {
 713         windowChanges.height = wxMax(1, height);
 714         valueMask |= CWHeight;
 715     }
 716
 717     XConfigureWindow( display, parent_window, valueMask, &windowChanges );
 718
 719 #if !wxUSE_NANOX
 720     XSizeHints size_hints;
 721     size_hints.flags = 0;
 722     if (x > -1 && y > -1)
 723         size_hints.flags |= PPosition;
 724     if (width > -1 && height > -1)
 725         size_hints.flags |= PSize;
 726     size_hints.width = width;
 727     size_hints.height = height;
 728     size_hints.x = x;
 729     size_hints.y = y;
 730     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 731                        &size_hints);
 732
 733     // This seems to be necessary or resizes don't get performed.
 734     // Take them out (or even just one of them), and the About
 735     // box of the minimal sample probably won't be resized right.
 736     XSync(wxGlobalDisplay(), False);
 737     XSync(wxGlobalDisplay(), False);
 738 #endif
 739 }
 740
 741 void wxTopLevelWindowX11::DoGetPosition(int *x, int *y) const
 742 {
 743     XSync(wxGlobalDisplay(), False);
 744     Window window = (Window) m_mainWidget;
 745     if (!window)
 746         return ;
 747
 748     Display *display = (Display*) GetXDisplay();
 749     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 750     Window parent_window = window,
 751         next_parent   = window;
 752
 753     // search for the parent that is child of ROOT, because the WM may
 754     // reparent twice and notify only the next parent (like FVWM)
 755     while (next_parent != root) {
 756         Window *theChildren;
 757 #if wxUSE_NANOX
 758         GR_COUNT n;
 759 #else
 760         unsigned int n;
 761 #endif
 762         parent_window = next_parent;
 763         XQueryTree(display, parent_window, &root,
 764             &next_parent, &theChildren, &n);
 765         XFree(theChildren); // not needed
 766     }
 767 #if 0
 768     int xx, yy; unsigned int dummy;
 769     XGetGeometry(display, parent_window, &root,
 770                  &xx, &yy, &dummy, &dummy, &dummy, &dummy);
 771     if (x) *x = xx;
 772     if (y) *y = yy;
 773 #else
 774     XWindowAttributes attr;
 775     Status status = XGetWindowAttributes((Display*) GetXDisplay(), parent_window, & attr);
 776     if (status)
 777     {
 778         if (x) *x = attr.x;
 779         if (y) *y = attr.y;
 780     }
 781     else
 782     {
 783         if (x) *x = 0;
 784         if (y) *y = 0;
 785     }
 786 #endif
 787 }