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         m_needResizeInIdle = FALSE;
 239     }
 240 }
 241
 242 // ----------------------------------------------------------------------------
 243 // wxTopLevelWindowX11 showing
 244 // ----------------------------------------------------------------------------
 245
 246 bool wxTopLevelWindowX11::Show(bool show)
 247 {
 248     // Nano-X has to force a size event,
 249     // else there's no initial size.
 250 #if wxUSE_NANOX
 251     if (show)
 252 #else
 253     if (show && m_needResizeInIdle)
 254 #endif
 255     {
 256         wxSizeEvent event(GetSize(), GetId());
 257         event.SetEventObject(this);
 258         GetEventHandler()->ProcessEvent(event);
 259
 260         m_needResizeInIdle = FALSE;
 261     }
 262
 263     if (show)
 264     {
 265         // This does the layout _before_ the
 266         // window is shown, else the items are
 267         // drawn first at the wrong positions,
 268         // then at the correct positions.
 269         if (GetAutoLayout())
 270         {
 271             Layout();
 272         }
 273     }
 274
 275     return wxWindowX11::Show(show);
 276 }
 277
 278 // ----------------------------------------------------------------------------
 279 // wxTopLevelWindowX11 maximize/minimize
 280 // ----------------------------------------------------------------------------
 281
 282 void wxTopLevelWindowX11::Maximize(bool maximize)
 283 {
 284     // TODO
 285 }
 286
 287 bool wxTopLevelWindowX11::IsMaximized() const
 288 {
 289     // TODO
 290     return TRUE;
 291 }
 292
 293 void wxTopLevelWindowX11::Iconize(bool iconize)
 294 {
 295     if (!m_iconized && GetMainWindow())
 296     {
 297         if (XIconifyWindow(wxGlobalDisplay(),
 298             (Window) GetMainWindow(), DefaultScreen(wxGlobalDisplay())) != 0)
 299             m_iconized = TRUE;
 300     }
 301 }
 302
 303 bool wxTopLevelWindowX11::IsIconized() const
 304 {
 305     return m_iconized;
 306 }
 307
 308 void wxTopLevelWindowX11::Restore()
 309 {
 310     // This is the way to deiconify the window, according to the X FAQ
 311     if (m_iconized && GetMainWindow())
 312     {
 313         XMapWindow(wxGlobalDisplay(), (Window) GetMainWindow());
 314         m_iconized = FALSE;
 315     }
 316 }
 317
 318 // ----------------------------------------------------------------------------
 319 // wxTopLevelWindowX11 fullscreen
 320 // ----------------------------------------------------------------------------
 321
 322 bool wxTopLevelWindowX11::ShowFullScreen(bool show, long style)
 323 {
 324     if (show)
 325     {
 326         if (IsFullScreen())
 327             return FALSE;
 328
 329         m_fsIsShowing = TRUE;
 330         m_fsStyle = style;
 331
 332         // TODO
 333
 334         return TRUE;
 335     }
 336     else
 337     {
 338         if (!IsFullScreen())
 339             return FALSE;
 340
 341         m_fsIsShowing = FALSE;
 342
 343         // TODO
 344         return TRUE;
 345     }
 346 }
 347
 348 // ----------------------------------------------------------------------------
 349 // wxTopLevelWindowX11 misc
 350 // ----------------------------------------------------------------------------
 351
 352 void wxTopLevelWindowX11::SetIcon(const wxIcon& icon)
 353 {
 354     // this sets m_icon
 355     wxTopLevelWindowBase::SetIcon(icon);
 356
 357     if (icon.Ok() && GetMainWindow())
 358     {
 359 #if wxUSE_NANOX
 360 #else
 361         XWMHints *wmHints = XAllocWMHints();
 362         wmHints->icon_pixmap = (Pixmap) icon.GetPixmap();
 363
 364         wmHints->flags = IconPixmapHint;
 365
 366         if (icon.GetMask())
 367         {
 368             wmHints->flags |= IconMaskHint;
 369             wmHints->icon_mask = (Pixmap) icon.GetMask()->GetBitmap();
 370         }
 371
 372         XSetWMHints(wxGlobalDisplay(), (Window) GetMainWindow(), wmHints);
 373         XFree(wmHints);
 374 #endif
 375     }
 376 }
 377
 378 void wxTopLevelWindowX11::SetTitle(const wxString& title)
 379 {
 380     m_title = title;
 381     if (GetMainWindow())
 382     {
 383         XStoreName(wxGlobalDisplay(), (Window) GetMainWindow(),
 384             (const char*) title);
 385         XSetIconName(wxGlobalDisplay(), (Window) GetMainWindow(),
 386             (const char*) title);
 387
 388         // Use this if the platform doesn't supply the above functions.
 389 #if 0
 390         XTextProperty textProperty;
 391         textProperty.value = (unsigned char*) title;
 392         textProperty.encoding = XA_STRING;
 393         textProperty.format = 8;
 394         textProperty.nitems = 1;
 395
 396         XSetTextProperty(wxGlobalDisplay(), (Window) GetMainWindow(),
 397             & textProperty, WM_NAME);
 398 #endif
 399     }
 400 }
 401
 402 wxString wxTopLevelWindowX11::GetTitle() const
 403 {
 404     return m_title;
 405 }
 406
 407 #ifndef MWM_DECOR_BORDER
 408 /* bit definitions for MwmHints.flags */
 409 #define MWM_HINTS_FUNCTIONS (1L << 0)
 410 #define MWM_HINTS_DECORATIONS (1L << 1)
 411 #define MWM_HINTS_INPUT_MODE (1L << 2)
 412 #define MWM_HINTS_STATUS (1L << 3)
 413
 414 #define MWM_DECOR_ALL           (1L << 0)
 415 #define MWM_DECOR_BORDER        (1L << 1)
 416 #define MWM_DECOR_RESIZEH       (1L << 2)
 417 #define MWM_DECOR_TITLE         (1L << 3)
 418 #define MWM_DECOR_MENU          (1L << 4)
 419 #define MWM_DECOR_MINIMIZE      (1L << 5)
 420 #define MWM_DECOR_MAXIMIZE      (1L << 6)
 421 #endif
 422
 423 struct MwmHints {
 424     long flags;
 425     long functions;
 426     long decorations;
 427     long input_mode;
 428 };
 429
 430 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
 431
 432 // Set the window manager decorations according to the
 433 // given wxWindows style
 434 bool wxSetWMDecorations(Window w, long style)
 435 {
 436 #if wxUSE_NANOX
 437     GR_WM_PROPERTIES wmProp;
 438
 439     wmProp.flags = 0;
 440     wmProp.props = 0;
 441
 442     if (style & wxRESIZE_BORDER)
 443     {
 444         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 445         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 446     }
 447
 448     if (style & wxSYSTEM_MENU)
 449     {
 450         wmProp.props |= GR_WM_PROPS_CLOSEBOX ;
 451         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 452     }
 453
 454     if ((style & wxCAPTION) ||
 455         (style & wxTINY_CAPTION_HORIZ) ||
 456         (style & wxTINY_CAPTION_VERT))
 457     {
 458         wmProp.props |= GR_WM_PROPS_CAPTION ;
 459         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 460
 461         // The default dialog style doesn't include any kind
 462         // of border, which is a bit odd. Anyway, inclusion
 463         // of a caption surely implies a border.
 464         style |= wxTHICK_FRAME;
 465     }
 466
 467     if (style & wxTHICK_FRAME)
 468     {
 469         wmProp.props |= GR_WM_PROPS_APPFRAME ;
 470         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 471     }
 472
 473     if (style & wxSIMPLE_BORDER)
 474     {
 475         wmProp.props |= GR_WM_PROPS_BORDER ;
 476         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 477     }
 478
 479     if (style & wxMINIMIZE_BOX)
 480     {
 481     }
 482
 483     if (style & wxMAXIMIZE_BOX)
 484     {
 485         wmProp.props |= GR_WM_PROPS_MAXIMIZE ;
 486         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 487     }
 488
 489     if (((style & wxBORDER) != wxBORDER) && ((style & wxTHICK_FRAME) != wxTHICK_FRAME)
 490         && ((style & wxRESIZE_BORDER) != wxRESIZE_BORDER))
 491     {
 492         wmProp.props |= GR_WM_PROPS_NODECORATE ;
 493         wmProp.flags |= GR_WM_FLAGS_PROPS ;
 494     }
 495
 496     GrSetWMProperties(w, & wmProp);
 497
 498 #else
 499     if (!wxMWMIsRunning(w))
 500         return FALSE;
 501
 502     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
 503     MwmHints hints;
 504     hints.flags = 0;
 505     hints.decorations = 0;
 506
 507     if (style & wxRESIZE_BORDER)
 508     {
 509         // wxLogDebug("MWM_DECOR_RESIZEH");
 510         hints.flags |= MWM_HINTS_DECORATIONS;
 511         hints.decorations |= MWM_DECOR_RESIZEH;
 512     }
 513
 514     if (style & wxSYSTEM_MENU)
 515     {
 516         // wxLogDebug("MWM_DECOR_MENU");
 517         hints.flags |= MWM_HINTS_DECORATIONS;
 518         hints.decorations |= MWM_DECOR_MENU;
 519     }
 520
 521     if ((style & wxCAPTION) ||
 522         (style & wxTINY_CAPTION_HORIZ) ||
 523         (style & wxTINY_CAPTION_VERT))
 524     {
 525         // wxLogDebug("MWM_DECOR_TITLE");
 526         hints.flags |= MWM_HINTS_DECORATIONS;
 527         hints.decorations |= MWM_DECOR_TITLE;
 528     }
 529
 530     if ((style & wxTHICK_FRAME) || (style & wxCAPTION))
 531     {
 532         // wxLogDebug("MWM_DECOR_BORDER");
 533         hints.flags |= MWM_HINTS_DECORATIONS;
 534         hints.decorations |= MWM_DECOR_BORDER;
 535     }
 536
 537     if (style & wxMINIMIZE_BOX)
 538     {
 539         // wxLogDebug("MWM_DECOR_MINIMIZE");
 540         hints.flags |= MWM_HINTS_DECORATIONS;
 541         hints.decorations |= MWM_DECOR_MINIMIZE;
 542     }
 543
 544     if (style & wxMAXIMIZE_BOX)
 545     {
 546         // wxLogDebug("MWM_DECOR_MAXIMIZE");
 547         hints.flags |= MWM_HINTS_DECORATIONS;
 548         hints.decorations |= MWM_DECOR_MAXIMIZE;
 549     }
 550
 551     XChangeProperty(wxGlobalDisplay(),
 552                     w,
 553                     mwm_wm_hints, mwm_wm_hints,
 554                     32, PropModeReplace,
 555                     (unsigned char *) &hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
 556
 557 #endif
 558     return TRUE;
 559 }
 560
 561 bool wxMWMIsRunning(Window w)
 562 {
 563 #if wxUSE_NANOX
 564     return FALSE;
 565 #else
 566     Display *dpy = (Display*)wxGetDisplay();
 567     Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
 568
 569     unsigned long length, bytesafter;
 570     unsigned char value[20];
 571     unsigned char *ptr = &value[0];
 572     int ret, format;
 573     Atom type;
 574
 575     type = format = length = 0;
 576     value[0] = 0;
 577
 578     ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
 579             0L, 2, False, motifWmInfo,
 580             &type, &format, &length, &bytesafter, &ptr);
 581
 582     return (ret == Success);
 583 #endif
 584 }
 585
 586 // For implementation purposes - sometimes decorations make the client area
 587 // smaller
 588 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 589 {
 590     // wxFrame::GetClientAreaOrigin
 591     // does the required calculation already.
 592     return wxPoint(0, 0);
 593 }
 594
 595 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 596 {
 597     XSync(wxGlobalDisplay(), False);
 598     wxWindowX11::DoGetClientSize(width, height);
 599 }
 600
 601 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 602 {
 603     wxWindowX11::DoSetClientSize(width, height);
 604
 605 #if !wxUSE_NANOX
 606     // Set the top-level window size
 607     XSizeHints size_hints;
 608     wxSize oldSize = GetSize();
 609     wxSize oldClientSize = GetClientSize();
 610
 611     size_hints.flags = PSize;
 612     size_hints.width = width + (oldSize.x - oldClientSize.x);
 613     size_hints.height = height + (oldSize.y - oldClientSize.y);
 614     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 615                        &size_hints);
 616
 617     // This seems to be necessary or resizes don't get performed
 618     XSync(wxGlobalDisplay(), False);
 619     XSync(wxGlobalDisplay(), False);
 620
 621 #if 0
 622     wxLogDebug("DoSetClientSize: Tried to set size to %d, %d", (int) size_hints.width, (int) size_hints.height);
 623
 624     XSync(wxGlobalDisplay(), False);
 625     wxSize newSize = GetSize();
 626     wxLogDebug("New size is %d, %d", (int) newSize.x, (int) newSize.y);
 627 #endif
 628 #endif
 629 }
 630
 631 void wxTopLevelWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 632 {
 633 #if 0
 634     // wxLogDebug( "Setting pos: %d, %d", x, y );
 635     wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
 636 #endif
 637     XSync(wxGlobalDisplay(), False);
 638     Window window = (Window) m_mainWidget;
 639     if (!window)
 640         return ;
 641
 642     Display *display = (Display*) GetXDisplay();
 643     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 644     Window parent_window = window,
 645         next_parent   = window;
 646
 647     // search for the parent that is child of ROOT, because the WM may
 648     // reparent twice and notify only the next parent (like FVWM)
 649     while (next_parent != root) {
 650         Window *theChildren;
 651 #if wxUSE_NANOX
 652         GR_COUNT n;
 653 #else
 654         unsigned int n;
 655 #endif
 656         parent_window = next_parent;
 657         XQueryTree(display, parent_window, &root,
 658             &next_parent, &theChildren, &n);
 659         XFree(theChildren); // not needed
 660     }
 661
 662     XWindowChanges windowChanges;
 663     windowChanges.x = x;
 664     windowChanges.y = y;
 665     windowChanges.width = width;
 666     windowChanges.height = height;
 667     windowChanges.stack_mode = 0;
 668     int valueMask = CWX | CWY | CWWidth | CWHeight;
 669
 670     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 671     {
 672         valueMask |= CWX;
 673     }
 674     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 675     {
 676         valueMask |= CWY;
 677     }
 678     if (width != -1)
 679     {
 680         windowChanges.width = wxMax(1, width);
 681         valueMask |= CWWidth;
 682     }
 683     if (height != -1)
 684     {
 685         windowChanges.height = wxMax(1, height);
 686         valueMask |= CWHeight;
 687     }
 688
 689     XConfigureWindow( display, parent_window, valueMask, &windowChanges );
 690
 691 #if !wxUSE_NANOX
 692     XSizeHints size_hints;
 693     size_hints.flags = 0;
 694     if (x > -1 && y > -1)
 695         size_hints.flags |= PPosition;
 696     if (width > -1 && height > -1)
 697         size_hints.flags |= PSize;
 698     size_hints.width = width;
 699     size_hints.height = height;
 700     size_hints.x = x;
 701     size_hints.y = y;
 702     XSetWMNormalHints( (Display*) GetXDisplay(), (Window) GetMainWindow(),
 703                        &size_hints);
 704
 705     // This seems to be necessary or resizes don't get performed.
 706     // Take them out (or even just one of them), and the About
 707     // box of the minimal sample probably won't be resized right.
 708     XSync(wxGlobalDisplay(), False);
 709     XSync(wxGlobalDisplay(), False);
 710 #endif
 711 }
 712
 713 void wxTopLevelWindowX11::DoGetPosition(int *x, int *y) const
 714 {
 715     XSync(wxGlobalDisplay(), False);
 716     Window window = (Window) m_mainWidget;
 717     if (!window)
 718         return ;
 719
 720     Display *display = (Display*) GetXDisplay();
 721     Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 722     Window parent_window = window,
 723         next_parent   = window;
 724
 725     // search for the parent that is child of ROOT, because the WM may
 726     // reparent twice and notify only the next parent (like FVWM)
 727     while (next_parent != root) {
 728         Window *theChildren;
 729 #if wxUSE_NANOX
 730         GR_COUNT n;
 731 #else
 732         unsigned int n;
 733 #endif
 734         parent_window = next_parent;
 735         XQueryTree(display, parent_window, &root,
 736             &next_parent, &theChildren, &n);
 737         XFree(theChildren); // not needed
 738     }
 739 #if 0
 740     int xx, yy; unsigned int dummy;
 741     XGetGeometry(display, parent_window, &root,
 742                  &xx, &yy, &dummy, &dummy, &dummy, &dummy);
 743     if (x) *x = xx;
 744     if (y) *y = yy;
 745 #else
 746     XWindowAttributes attr;
 747     Status status = XGetWindowAttributes((Display*) GetXDisplay(), parent_window, & attr);
 748     if (status)
 749     {
 750         if (x) *x = attr.x;
 751         if (y) *y = attr.y;
 752     }
 753     else
 754     {
 755         if (x) *x = 0;
 756         if (y) *y = 0;
 757     }
 758 #endif
 759 }