src/msw/statusbar.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/statusbar.cpp
   3 // Purpose:     native implementation of wxStatusBar
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.04.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24   #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR
  28
  29 #include "wx/statusbr.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  33     #include "wx/frame.h"
  34     #include "wx/settings.h"
  35     #include "wx/dcclient.h"
  36     #include "wx/intl.h"
  37     #include "wx/log.h"
  38     #include "wx/control.h"
  39 #endif
  40
  41 #include "wx/msw/private.h"
  42 #include "wx/tooltip.h"
  43 #include <windowsx.h>
  44
  45 #if wxUSE_UXTHEME
  46     #include "wx/msw/uxtheme.h"
  47 #endif
  48
  49 // ----------------------------------------------------------------------------
  50 // constants
  51 // ----------------------------------------------------------------------------
  52
  53 namespace
  54 {
  55
  56 // no idea for a default width, just choose something
  57 static const int DEFAULT_FIELD_WIDTH = 25;
  58
  59 } // anonymous namespace
  60
  61 // ----------------------------------------------------------------------------
  62 // macros
  63 // ----------------------------------------------------------------------------
  64
  65 // windowsx.h and commctrl.h don't define those, so we do it here
  66 #define StatusBar_SetParts(h, n, w) SendMessage(h, SB_SETPARTS, (WPARAM)n, (LPARAM)w)
  67 #define StatusBar_SetText(h, n, t)  SendMessage(h, SB_SETTEXT, (WPARAM)n, (LPARAM)(LPCTSTR)t)
  68 #define StatusBar_GetTextLen(h, n)  LOWORD(SendMessage(h, SB_GETTEXTLENGTH, (WPARAM)n, 0))
  69 #define StatusBar_GetText(h, n, s)  LOWORD(SendMessage(h, SB_GETTEXT, (WPARAM)n, (LPARAM)(LPTSTR)s))
  70
  71 // ============================================================================
  72 // implementation
  73 // ============================================================================
  74
  75 // ----------------------------------------------------------------------------
  76 // wxStatusBar class
  77 // ----------------------------------------------------------------------------
  78
  79 wxStatusBar::wxStatusBar()
  80 {
  81     SetParent(NULL);
  82     m_hWnd = 0;
  83     m_windowId = 0;
  84     m_pDC = NULL;
  85 }
  86
  87 bool wxStatusBar::Create(wxWindow *parent,
  88                          wxWindowID id,
  89                          long style,
  90                          const wxString& name)
  91 {
  92     wxCHECK_MSG( parent, false, "status bar must have a parent" );
  93
  94     SetName(name);
  95     SetWindowStyleFlag(style);
  96     SetParent(parent);
  97
  98     parent->AddChild(this);
  99
 100     m_windowId = id == wxID_ANY ? NewControlId() : id;
 101
 102     DWORD wstyle = WS_CHILD | WS_VISIBLE;
 103
 104     if ( style & wxCLIP_SIBLINGS )
 105         wstyle |= WS_CLIPSIBLINGS;
 106
 107     // wxSTB_SIZEGRIP is part of our default style but it doesn't make sense to
 108     // show size grip if this is the status bar of a non-resizeable TLW so turn
 109     // it off in such case
 110     if ( parent->IsTopLevel() && !parent->HasFlag(wxRESIZE_BORDER) )
 111         style &= ~wxSTB_SIZEGRIP;
 112
 113     // setting SBARS_SIZEGRIP is perfectly useless: it's always on by default
 114     // (at least in the version of comctl32.dll I'm using), and the only way to
 115     // turn it off is to use CCS_TOP style - as we position the status bar
 116     // manually anyhow (see DoMoveWindow), use CCS_TOP style if wxSTB_SIZEGRIP
 117     // is not given
 118     if ( !(style & wxSTB_SIZEGRIP) )
 119     {
 120         wstyle |= CCS_TOP;
 121     }
 122     else
 123     {
 124 #ifndef __WXWINCE__
 125         // may be some versions of comctl32.dll do need it - anyhow, it won't
 126         // do any harm
 127         wstyle |= SBARS_SIZEGRIP;
 128 #endif
 129     }
 130
 131     m_hWnd = CreateWindow
 132              (
 133                 STATUSCLASSNAME,
 134                 wxT(""),
 135                 wstyle,
 136                 0, 0, 0, 0,
 137                 GetHwndOf(parent),
 138                 (HMENU)wxUIntToPtr(m_windowId.GetValue()),
 139                 wxGetInstance(),
 140                 NULL
 141              );
 142     if ( m_hWnd == 0 )
 143     {
 144         wxLogSysError(_("Failed to create a status bar."));
 145
 146         return false;
 147     }
 148
 149     SetFieldsCount(1);
 150     SubclassWin(m_hWnd);
 151
 152     // cache the DC instance used by DoUpdateStatusText:
 153     // NOTE: create the DC before calling InheritAttributes() since
 154     //       it may result in a call to our SetFont()
 155     m_pDC = new wxClientDC(this);
 156
 157     InheritAttributes();
 158
 159     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR));
 160
 161     // we must refresh the frame size when the statusbar is created, because
 162     // its client area might change
 163     //
 164     // notice that we must post the event, not send it, as the frame doesn't
 165     // know that we're its status bar yet so laying it out right now wouldn't
 166     // work correctly, we need to wait until we return to the main loop
 167     PostSizeEventToParent();
 168
 169     return true;
 170 }
 171
 172 wxStatusBar::~wxStatusBar()
 173 {
 174     // we must refresh the frame size when the statusbar is deleted but the
 175     // frame is not - otherwise statusbar leaves a hole in the place it used to
 176     // occupy
 177     PostSizeEventToParent();
 178
 179     // delete existing tooltips
 180     for (size_t i=0; i<m_tooltips.size(); i++)
 181     {
 182         wxDELETE(m_tooltips[i]);
 183     }
 184
 185     wxDELETE(m_pDC);
 186 }
 187
 188 bool wxStatusBar::SetFont(const wxFont& font)
 189 {
 190     if (!wxWindow::SetFont(font))
 191         return false;
 192
 193     if (m_pDC) m_pDC->SetFont(font);
 194     return true;
 195 }
 196
 197 void wxStatusBar::SetFieldsCount(int nFields, const int *widths)
 198 {
 199     // this is a Windows limitation
 200     wxASSERT_MSG( (nFields > 0) && (nFields < 255), "too many fields" );
 201
 202     wxStatusBarBase::SetFieldsCount(nFields, widths);
 203
 204     MSWUpdateFieldsWidths();
 205
 206     // keep in synch also our m_tooltips array
 207
 208     // reset all current tooltips
 209     for (size_t i=0; i<m_tooltips.size(); i++)
 210     {
 211         wxDELETE(m_tooltips[i]);
 212     }
 213
 214     // shrink/expand the array:
 215     m_tooltips.resize(m_panes.GetCount(), NULL);
 216 }
 217
 218 void wxStatusBar::SetStatusWidths(int n, const int widths[])
 219 {
 220     wxStatusBarBase::SetStatusWidths(n, widths);
 221
 222     MSWUpdateFieldsWidths();
 223 }
 224
 225 void wxStatusBar::MSWUpdateFieldsWidths()
 226 {
 227     if ( m_panes.IsEmpty() )
 228         return;
 229
 230     const int count = m_panes.GetCount();
 231
 232     const int extraWidth = MSWGetBorderWidth() + MSWGetMetrics().textMargin;
 233
 234     // compute the effectively available amount of space:
 235     int widthAvailable = GetClientSize().x;     // start with the entire width
 236     widthAvailable -= extraWidth*(count - 1);   // extra space between fields
 237     widthAvailable -= MSWGetMetrics().textMargin;   // and for the last field
 238
 239     if ( HasFlag(wxSTB_SIZEGRIP) )
 240         widthAvailable -= MSWGetMetrics().gripWidth;
 241
 242     // distribute the available space (client width) among the various fields:
 243
 244     wxArrayInt widthsAbs = CalculateAbsWidths(widthAvailable);
 245
 246
 247     // update the field widths in the native control:
 248
 249     int *pWidths = new int[count];
 250
 251     int nCurPos = 0;
 252     for ( int i = 0; i < count; i++ )
 253     {
 254         nCurPos += widthsAbs[i] + extraWidth;
 255         pWidths[i] = nCurPos;
 256     }
 257
 258     if ( !StatusBar_SetParts(GetHwnd(), count, pWidths) )
 259     {
 260         wxLogLastError("StatusBar_SetParts");
 261     }
 262
 263     delete [] pWidths;
 264
 265
 266     // FIXME: we may want to call DoUpdateStatusText() here since we may need to (de)ellipsize status texts
 267 }
 268
 269 void wxStatusBar::DoUpdateStatusText(int nField)
 270 {
 271     if (!m_pDC)
 272         return;
 273
 274     // Get field style, if any
 275     int style;
 276     switch(m_panes[nField].GetStyle())
 277     {
 278     case wxSB_RAISED:
 279         style = SBT_POPOUT;
 280         break;
 281     case wxSB_FLAT:
 282         style = SBT_NOBORDERS;
 283         break;
 284
 285     case wxSB_NORMAL:
 286     default:
 287         style = 0;
 288         break;
 289     }
 290
 291     wxRect rc;
 292     GetFieldRect(nField, rc);
 293
 294     const int maxWidth = rc.GetWidth() - MSWGetMetrics().textMargin;
 295
 296     wxString text = GetStatusText(nField);
 297
 298     // do we need to ellipsize this string?
 299     wxEllipsizeMode ellmode = (wxEllipsizeMode)-1;
 300     if (HasFlag(wxSTB_ELLIPSIZE_START)) ellmode = wxELLIPSIZE_START;
 301     else if (HasFlag(wxSTB_ELLIPSIZE_MIDDLE)) ellmode = wxELLIPSIZE_MIDDLE;
 302     else if (HasFlag(wxSTB_ELLIPSIZE_END)) ellmode = wxELLIPSIZE_END;
 303
 304     if (ellmode == (wxEllipsizeMode)-1)
 305     {
 306         // if we have the wxSTB_SHOW_TIPS we must set the ellipsized flag even if
 307         // we don't ellipsize the text but just truncate it
 308         if (HasFlag(wxSTB_SHOW_TIPS))
 309             SetEllipsizedFlag(nField, m_pDC->GetTextExtent(text).GetWidth() > maxWidth);
 310     }
 311     else
 312     {
 313         text = wxControl::Ellipsize(text,
 314                                      *m_pDC,
 315                                      ellmode,
 316                                      maxWidth,
 317                                      wxELLIPSIZE_FLAGS_EXPAND_TABS);
 318
 319         // update the ellipsization status for this pane; this is used later to
 320         // decide whether a tooltip should be shown or not for this pane
 321         // (if we have wxSTB_SHOW_TIPS)
 322         SetEllipsizedFlag(nField, text != GetStatusText(nField));
 323     }
 324
 325     // Set the status text in the native control passing both field number and style.
 326     // NOTE: MSDN library doesn't mention that nField and style have to be 'ORed'
 327     if ( !StatusBar_SetText(GetHwnd(), nField | style, text.wx_str()) )
 328     {
 329         wxLogLastError("StatusBar_SetText");
 330     }
 331
 332     if (HasFlag(wxSTB_SHOW_TIPS))
 333     {
 334         wxASSERT(m_tooltips.size() == m_panes.GetCount());
 335
 336         if (m_tooltips[nField])
 337         {
 338             if (GetField(nField).IsEllipsized())
 339             {
 340                 // update the rect of this tooltip:
 341                 m_tooltips[nField]->SetRect(rc);
 342
 343                 // update also the text:
 344                 m_tooltips[nField]->SetTip(GetStatusText(nField));
 345             }
 346             else
 347             {
 348                 // delete the tooltip associated with this pane; it's not needed anymore
 349                 wxDELETE(m_tooltips[nField]);
 350             }
 351         }
 352         else
 353         {
 354             // create a new tooltip for this pane if needed
 355             if (GetField(nField).IsEllipsized())
 356                 m_tooltips[nField] = new wxToolTip(this, nField, GetStatusText(nField), rc);
 357             //else: leave m_tooltips[nField]==NULL
 358         }
 359     }
 360 }
 361
 362 wxStatusBar::MSWBorders wxStatusBar::MSWGetBorders() const
 363 {
 364     int aBorders[3];
 365     SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
 366
 367     MSWBorders borders;
 368     borders.horz = aBorders[0];
 369     borders.vert = aBorders[1];
 370     borders.between = aBorders[2];
 371     return borders;
 372 }
 373
 374 int wxStatusBar::GetBorderX() const
 375 {
 376     return MSWGetBorders().horz;
 377 }
 378
 379 int wxStatusBar::GetBorderY() const
 380 {
 381     return MSWGetBorders().vert;
 382 }
 383
 384 int wxStatusBar::MSWGetBorderWidth() const
 385 {
 386     return MSWGetBorders().between;
 387 }
 388
 389 /* static */
 390 const wxStatusBar::MSWMetrics& wxStatusBar::MSWGetMetrics()
 391 {
 392     static MSWMetrics s_metrics = { 0 };
 393     if ( !s_metrics.textMargin )
 394     {
 395         // Grip size should be self explanatory (the only problem with it is
 396         // that it's hard coded as we don't know how to find its size using
 397         // API) but the margin might merit an explanation: Windows offsets the
 398         // text drawn in status bar panes so we need to take this extra margin
 399         // into account to make sure the text drawn by user fits inside the
 400         // pane. Notice that it's not the value returned by SB_GETBORDERS
 401         // which, at least on this Windows 2003 system, returns {0, 2, 2}
 402         if ( wxUxThemeEngine::GetIfActive() )
 403         {
 404             s_metrics.gripWidth = 20;
 405             s_metrics.textMargin = 8;
 406         }
 407         else // classic/unthemed look
 408         {
 409             s_metrics.gripWidth = 18;
 410             s_metrics.textMargin = 4;
 411         }
 412     }
 413
 414     return s_metrics;
 415 }
 416
 417 void wxStatusBar::SetMinHeight(int height)
 418 {
 419     SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0);
 420
 421     // we have to send a (dummy) WM_SIZE to redraw it now
 422     SendMessage(GetHwnd(), WM_SIZE, 0, 0);
 423 }
 424
 425 bool wxStatusBar::GetFieldRect(int i, wxRect& rect) const
 426 {
 427     wxCHECK_MSG( (i >= 0) && ((size_t)i < m_panes.GetCount()), false,
 428                  "invalid statusbar field index" );
 429
 430     RECT r;
 431     if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) )
 432     {
 433         wxLogLastError("SendMessage(SB_GETRECT)");
 434     }
 435
 436 #if wxUSE_UXTHEME
 437     wxUxThemeHandle theme(const_cast<wxStatusBar*>(this), L"Status");
 438     if ( theme )
 439     {
 440         // by default Windows has a 2 pixel border to the right of the left
 441         // divider (or it could be a bug) but it looks wrong so remove it
 442         if ( i != 0 )
 443         {
 444             r.left -= 2;
 445         }
 446
 447         wxUxThemeEngine::Get()->GetThemeBackgroundContentRect(theme, NULL,
 448                                                               1 /* SP_PANE */, 0,
 449                                                               &r, &r);
 450     }
 451 #endif
 452
 453     wxCopyRECTToRect(r, rect);
 454
 455     // Windows seems to under-report the size of the last field rectangle,
 456     // presumably in order to prevent the buggy applications from overflowing
 457     // onto the size grip but we want to return the real size to wx users
 458     if ( HasFlag(wxSTB_SIZEGRIP) && i == (int)m_panes.GetCount() - 1 )
 459     {
 460         rect.width += MSWGetMetrics().gripWidth - MSWGetBorderWidth();
 461     }
 462
 463     return true;
 464 }
 465
 466 wxSize wxStatusBar::DoGetBestSize() const
 467 {
 468     const MSWBorders borders = MSWGetBorders();
 469
 470     // calculate width
 471     int width = 0;
 472     for ( size_t i = 0; i < m_panes.GetCount(); ++i )
 473     {
 474         int widthField =
 475             m_bSameWidthForAllPanes ? DEFAULT_FIELD_WIDTH : m_panes[i].GetWidth();
 476         if ( widthField >= 0 )
 477         {
 478             width += widthField;
 479         }
 480         else
 481         {
 482             // variable width field, its width is really a proportion
 483             // related to the other fields
 484             width += -widthField*DEFAULT_FIELD_WIDTH;
 485         }
 486
 487         // add the space between fields
 488         width += borders.between;
 489     }
 490
 491     if ( !width )
 492     {
 493         // still need something even for an empty status bar
 494         width = 2*DEFAULT_FIELD_WIDTH;
 495     }
 496
 497     // calculate height
 498     int height;
 499     wxGetCharSize(GetHWND(), NULL, &height, GetFont());
 500     height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(height);
 501     height += borders.vert;
 502
 503     wxSize best(width, height);
 504     CacheBestSize(best);
 505     return best;
 506 }
 507
 508 void wxStatusBar::DoMoveWindow(int x, int y, int width, int height)
 509 {
 510     if ( GetParent()->IsSizeDeferred() )
 511     {
 512         wxWindowMSW::DoMoveWindow(x, y, width, height);
 513     }
 514     else
 515     {
 516         // parent pos/size isn't deferred so do it now but don't send
 517         // WM_WINDOWPOSCHANGING since we don't want to change pos/size later
 518         // we must use SWP_NOCOPYBITS here otherwise it paints incorrectly
 519         // if other windows are size deferred
 520         ::SetWindowPos(GetHwnd(), NULL, x, y, width, height,
 521                        SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE
 522 #ifndef __WXWINCE__
 523                        | SWP_NOCOPYBITS | SWP_NOSENDCHANGING
 524 #endif
 525                        );
 526     }
 527
 528     // adjust fields widths to the new size
 529     MSWUpdateFieldsWidths();
 530
 531     // we have to trigger wxSizeEvent if there are children window in status
 532     // bar because GetFieldRect returned incorrect (not updated) values up to
 533     // here, which almost certainly resulted in incorrectly redrawn statusbar
 534     if ( m_children.GetCount() > 0 )
 535     {
 536         wxSizeEvent event(GetClientSize(), m_windowId);
 537         event.SetEventObject(this);
 538         HandleWindowEvent(event);
 539     }
 540 }
 541
 542 void wxStatusBar::SetStatusStyles(int n, const int styles[])
 543 {
 544     wxStatusBarBase::SetStatusStyles(n, styles);
 545
 546     if (n != (int)m_panes.GetCount())
 547         return;
 548
 549     for (int i = 0; i < n; i++)
 550     {
 551         int style;
 552         switch(styles[i])
 553         {
 554         case wxSB_RAISED:
 555             style = SBT_POPOUT;
 556             break;
 557         case wxSB_FLAT:
 558             style = SBT_NOBORDERS;
 559             break;
 560         case wxSB_NORMAL:
 561         default:
 562             style = 0;
 563             break;
 564         }
 565
 566         // The SB_SETTEXT message is both used to set the field's text as well as
 567         // the fields' styles.
 568         // NOTE: MSDN library doesn't mention that nField and style have to be 'ORed'
 569         wxString text = GetStatusText(i);
 570         if (!StatusBar_SetText(GetHwnd(), style | i, text.wx_str()))
 571         {
 572             wxLogLastError("StatusBar_SetText");
 573         }
 574     }
 575 }
 576
 577 WXLRESULT
 578 wxStatusBar::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 579 {
 580 #ifndef __WXWINCE__
 581     if ( nMsg == WM_WINDOWPOSCHANGING )
 582     {
 583         WINDOWPOS *lpPos = (WINDOWPOS *)lParam;
 584         int x, y, w, h;
 585         GetPosition(&x, &y);
 586         GetSize(&w, &h);
 587
 588         // we need real window coords and not wx client coords
 589         AdjustForParentClientOrigin(x, y);
 590
 591         lpPos->x  = x;
 592         lpPos->y  = y;
 593         lpPos->cx = w;
 594         lpPos->cy = h;
 595
 596         return 0;
 597     }
 598
 599     if ( nMsg == WM_NCLBUTTONDOWN )
 600     {
 601         // if hit-test is on gripper then send message to TLW to begin
 602         // resizing. It is possible to send this message to any window.
 603         if ( wParam == HTBOTTOMRIGHT )
 604         {
 605             wxWindow *win;
 606
 607             for ( win = GetParent(); win; win = win->GetParent() )
 608             {
 609                 if ( win->IsTopLevel() )
 610                 {
 611                     SendMessage(GetHwndOf(win), WM_NCLBUTTONDOWN,
 612                                 wParam, lParam);
 613
 614                     return 0;
 615                 }
 616             }
 617         }
 618     }
 619 #endif
 620
 621     bool needsEllipsization = HasFlag(wxSTB_ELLIPSIZE_START) ||
 622                               HasFlag(wxSTB_ELLIPSIZE_MIDDLE) ||
 623                               HasFlag(wxSTB_ELLIPSIZE_END);
 624     if ( nMsg == WM_SIZE && needsEllipsization )
 625     {
 626         for (int i=0; i<GetFieldsCount(); i++)
 627             DoUpdateStatusText(i);
 628             // re-set the field text, in case we need to ellipsize
 629             // (or de-ellipsize) some parts of it
 630     }
 631
 632     return wxStatusBarBase::MSWWindowProc(nMsg, wParam, lParam);
 633 }
 634
 635 #if wxUSE_TOOLTIPS
 636 bool wxStatusBar::MSWProcessMessage(WXMSG* pMsg)
 637 {
 638     if ( HasFlag(wxSTB_SHOW_TIPS) )
 639     {
 640         // for a tooltip to be shown, we need to relay mouse events to it;
 641         // this is typically done by wxWindowMSW::MSWProcessMessage but only
 642         // if wxWindow::m_tooltip pointer is non-NULL.
 643         // Since wxStatusBar has multiple tooltips for a single HWND, it keeps
 644         // wxWindow::m_tooltip == NULL and then relays mouse events here:
 645         MSG *msg = (MSG *)pMsg;
 646         if ( msg->message == WM_MOUSEMOVE )
 647             wxToolTip::RelayEvent(pMsg);
 648     }
 649
 650     return wxWindow::MSWProcessMessage(pMsg);
 651 }
 652
 653 bool wxStatusBar::MSWOnNotify(int WXUNUSED(idCtrl), WXLPARAM lParam, WXLPARAM* WXUNUSED(result))
 654 {
 655     if ( HasFlag(wxSTB_SHOW_TIPS) )
 656     {
 657         // see comment in wxStatusBar::MSWProcessMessage for more info;
 658         // basically we need to override wxWindow::MSWOnNotify because
 659         // we have wxWindow::m_tooltip always NULL but we still use tooltips...
 660
 661         NMHDR* hdr = (NMHDR *)lParam;
 662
 663         wxString str;
 664         if (hdr->idFrom < m_tooltips.size() && m_tooltips[hdr->idFrom])
 665             str = m_tooltips[hdr->idFrom]->GetTip();
 666
 667         if ( HandleTooltipNotify(hdr->code, lParam, str))
 668         {
 669             // processed
 670             return true;
 671         }
 672     }
 673
 674     return false;
 675 }
 676 #endif // wxUSE_TOOLTIPS
 677
 678 #endif // wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR