src/common/dlgcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/dlgcmn.cpp
   3 // Purpose:     common (to all ports) wxDialog functions
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.06.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   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 #include "wx/dialog.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31     #include "wx/button.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/intl.h"
  34     #include "wx/settings.h"
  35     #include "wx/stattext.h"
  36     #include "wx/sizer.h"
  37     #include "wx/containr.h"
  38 #endif
  39
  40 #include "wx/statline.h"
  41 #include "wx/sysopt.h"
  42 #include "wx/module.h"
  43 #include "wx/bookctrl.h"
  44 #include "wx/scrolwin.h"
  45 #include "wx/textwrapper.h"
  46
  47 #if wxUSE_DISPLAY
  48 #include "wx/display.h"
  49 #endif
  50
  51 // ----------------------------------------------------------------------------
  52 // wxDialogBase
  53 // ----------------------------------------------------------------------------
  54
  55 BEGIN_EVENT_TABLE(wxDialogBase, wxTopLevelWindow)
  56     EVT_BUTTON(wxID_ANY, wxDialogBase::OnButton)
  57
  58     EVT_CLOSE(wxDialogBase::OnCloseWindow)
  59
  60     EVT_CHAR_HOOK(wxDialogBase::OnCharHook)
  61 END_EVENT_TABLE()
  62
  63 wxDialogLayoutAdapter* wxDialogBase::sm_layoutAdapter = NULL;
  64 bool wxDialogBase::sm_layoutAdaptation = false;
  65
  66 void wxDialogBase::Init()
  67 {
  68     m_returnCode = 0;
  69     m_affirmativeId = wxID_OK;
  70     m_escapeId = wxID_ANY;
  71     m_layoutAdaptationLevel = 3;
  72     m_layoutAdaptationDone = FALSE;
  73     m_layoutAdaptationMode = wxDIALOG_ADAPTATION_MODE_DEFAULT;
  74
  75     // the dialogs have this flag on by default to prevent the events from the
  76     // dialog controls from reaching the parent frame which is usually
  77     // undesirable and can lead to unexpected and hard to find bugs
  78     SetExtraStyle(GetExtraStyle() | wxWS_EX_BLOCK_EVENTS);
  79 }
  80
  81 wxWindow *wxDialogBase::CheckIfCanBeUsedAsParent(wxWindow *parent) const
  82 {
  83     if ( !parent )
  84         return NULL;
  85
  86     extern WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete;
  87     if ( wxPendingDelete.Member(parent) || parent->IsBeingDeleted() )
  88     {
  89         // this window is being deleted and we shouldn't create any children
  90         // under it
  91         return NULL;
  92     }
  93
  94     if ( parent->HasExtraStyle(wxWS_EX_TRANSIENT) )
  95     {
  96         // this window is not being deleted yet but it's going to disappear
  97         // soon so still don't parent this window under it
  98         return NULL;
  99     }
 100
 101     if ( !parent->IsShownOnScreen() )
 102     {
 103         // using hidden parent won't work correctly neither
 104         return NULL;
 105     }
 106
 107     // FIXME-VC6: this compiler requires an explicit const cast or it fails
 108     //            with error C2446
 109     if ( const_cast<const wxWindow *>(parent) == this )
 110     {
 111         // not sure if this can really happen but it doesn't hurt to guard
 112         // against this clearly invalid situation
 113         return NULL;
 114     }
 115
 116     return parent;
 117 }
 118
 119 wxWindow *
 120 wxDialogBase::GetParentForModalDialog(wxWindow *parent, long style) const
 121 {
 122     // creating a parent-less modal dialog will result (under e.g. wxGTK2)
 123     // in an unfocused dialog, so try to find a valid parent for it unless we
 124     // were explicitly asked not to
 125     if ( style & wxDIALOG_NO_PARENT )
 126         return NULL;
 127
 128     // first try the given parent
 129     if ( parent )
 130         parent = CheckIfCanBeUsedAsParent(wxGetTopLevelParent(parent));
 131
 132     // then the currently active window
 133     if ( !parent )
 134         parent = CheckIfCanBeUsedAsParent(
 135                     wxGetTopLevelParent(wxGetActiveWindow()));
 136
 137     // and finally the application main window
 138     if ( !parent )
 139         parent = CheckIfCanBeUsedAsParent(wxTheApp->GetTopWindow());
 140
 141     return parent;
 142 }
 143
 144 #if wxUSE_STATTEXT
 145
 146 wxSizer *wxDialogBase::CreateTextSizer(const wxString& message)
 147 {
 148     wxTextSizerWrapper wrapper(this);
 149
 150     return CreateTextSizer(message, wrapper);
 151 }
 152
 153 wxSizer *wxDialogBase::CreateTextSizer(const wxString& message,
 154                                        wxTextSizerWrapper& wrapper)
 155 {
 156     // I admit that this is complete bogus, but it makes
 157     // message boxes work for pda screens temporarily..
 158     int widthMax = -1;
 159     const bool is_pda = wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA;
 160     if (is_pda)
 161     {
 162         widthMax = wxSystemSettings::GetMetric( wxSYS_SCREEN_X ) - 25;
 163     }
 164
 165     // '&' is used as accel mnemonic prefix in the wxWidgets controls but in
 166     // the static messages created by CreateTextSizer() (used by wxMessageBox,
 167     // for example), we don't want this special meaning, so we need to quote it
 168     wxString text(message);
 169     text.Replace(wxT("&"), wxT("&&"));
 170
 171     return wrapper.CreateSizer(text, widthMax);
 172 }
 173
 174 #endif // wxUSE_STATTEXT
 175
 176 wxSizer *wxDialogBase::CreateButtonSizer(long flags)
 177 {
 178 #ifdef __SMARTPHONE__
 179     wxDialog* dialog = (wxDialog*) this;
 180     if ( flags & wxOK )
 181         dialog->SetLeftMenu(wxID_OK);
 182
 183     if ( flags & wxCANCEL )
 184         dialog->SetRightMenu(wxID_CANCEL);
 185
 186     if ( flags & wxYES )
 187         dialog->SetLeftMenu(wxID_YES);
 188
 189     if ( flags & wxNO )
 190         dialog->SetRightMenu(wxID_NO);
 191
 192     return NULL;
 193 #else // !__SMARTPHONE__
 194
 195 #if wxUSE_BUTTON
 196
 197 #ifdef __POCKETPC__
 198     // PocketPC guidelines recommend for Ok/Cancel dialogs to use OK button
 199     // located inside caption bar and implement Cancel functionality through
 200     // Undo outside dialog. As native behaviour this will be default here but
 201     // can be replaced with real wxButtons by setting the option below to 1
 202     if ( (flags & ~(wxCANCEL|wxNO_DEFAULT)) != wxOK ||
 203             wxSystemOptions::GetOptionInt(wxT("wince.dialog.real-ok-cancel")) )
 204 #endif // __POCKETPC__
 205     {
 206         return CreateStdDialogButtonSizer(flags);
 207     }
 208 #ifdef __POCKETPC__
 209     return NULL;
 210 #endif // __POCKETPC__
 211
 212 #else // !wxUSE_BUTTON
 213     wxUnusedVar(flags);
 214
 215     return NULL;
 216 #endif // wxUSE_BUTTON/!wxUSE_BUTTON
 217
 218 #endif // __SMARTPHONE__/!__SMARTPHONE__
 219 }
 220
 221 wxSizer *wxDialogBase::CreateSeparatedButtonSizer(long flags)
 222 {
 223     wxSizer *sizer = CreateButtonSizer(flags);
 224     if ( !sizer )
 225         return NULL;
 226
 227     // Mac Human Interface Guidelines recommend not to use static lines as
 228     // grouping elements
 229 #if wxUSE_STATLINE && !defined(__WXMAC__)
 230     wxBoxSizer *topsizer = new wxBoxSizer(wxVERTICAL);
 231     topsizer->Add(new wxStaticLine(this),
 232                    wxSizerFlags().Expand().DoubleBorder(wxBOTTOM));
 233     topsizer->Add(sizer, wxSizerFlags().Expand());
 234     sizer = topsizer;
 235 #endif // wxUSE_STATLINE
 236
 237     return sizer;
 238 }
 239
 240 #if wxUSE_BUTTON
 241
 242 wxStdDialogButtonSizer *wxDialogBase::CreateStdDialogButtonSizer( long flags )
 243 {
 244     wxStdDialogButtonSizer *sizer = new wxStdDialogButtonSizer();
 245
 246     wxButton *ok = NULL;
 247     wxButton *yes = NULL;
 248     wxButton *no = NULL;
 249
 250     if (flags & wxOK)
 251     {
 252         ok = new wxButton(this, wxID_OK);
 253         sizer->AddButton(ok);
 254     }
 255
 256     if (flags & wxCANCEL)
 257     {
 258         wxButton *cancel = new wxButton(this, wxID_CANCEL);
 259         sizer->AddButton(cancel);
 260     }
 261
 262     if (flags & wxYES)
 263     {
 264         yes = new wxButton(this, wxID_YES);
 265         sizer->AddButton(yes);
 266     }
 267
 268     if (flags & wxNO)
 269     {
 270         no = new wxButton(this, wxID_NO);
 271         sizer->AddButton(no);
 272     }
 273
 274     if (flags & wxAPPLY)
 275     {
 276         wxButton *apply = new wxButton(this, wxID_APPLY);
 277         sizer->AddButton(apply);
 278     }
 279
 280     if (flags & wxCLOSE)
 281     {
 282         wxButton *close = new wxButton(this, wxID_CLOSE);
 283         sizer->AddButton(close);
 284     }
 285
 286     if (flags & wxHELP)
 287     {
 288         wxButton *help = new wxButton(this, wxID_HELP);
 289         sizer->AddButton(help);
 290     }
 291
 292     if (flags & wxNO_DEFAULT)
 293     {
 294         if (no)
 295         {
 296             no->SetDefault();
 297             no->SetFocus();
 298         }
 299     }
 300     else
 301     {
 302         if (ok)
 303         {
 304             ok->SetDefault();
 305             ok->SetFocus();
 306         }
 307         else if (yes)
 308         {
 309             yes->SetDefault();
 310             yes->SetFocus();
 311         }
 312     }
 313
 314     if (flags & wxOK)
 315         SetAffirmativeId(wxID_OK);
 316     else if (flags & wxYES)
 317         SetAffirmativeId(wxID_YES);
 318
 319     sizer->Realize();
 320
 321     return sizer;
 322 }
 323
 324 #endif // wxUSE_BUTTON
 325
 326 // ----------------------------------------------------------------------------
 327 // standard buttons handling
 328 // ----------------------------------------------------------------------------
 329
 330 void wxDialogBase::EndDialog(int rc)
 331 {
 332     if ( IsModal() )
 333         EndModal(rc);
 334     else
 335         Hide();
 336 }
 337
 338 void wxDialogBase::AcceptAndClose()
 339 {
 340     if ( Validate() && TransferDataFromWindow() )
 341     {
 342         EndDialog(m_affirmativeId);
 343     }
 344 }
 345
 346 void wxDialogBase::SetAffirmativeId(int affirmativeId)
 347 {
 348     m_affirmativeId = affirmativeId;
 349 }
 350
 351 void wxDialogBase::SetEscapeId(int escapeId)
 352 {
 353     m_escapeId = escapeId;
 354 }
 355
 356 bool wxDialogBase::EmulateButtonClickIfPresent(int id)
 357 {
 358 #if wxUSE_BUTTON
 359     wxButton *btn = wxDynamicCast(FindWindow(id), wxButton);
 360
 361     if ( !btn || !btn->IsEnabled() || !btn->IsShown() )
 362         return false;
 363
 364     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, id);
 365     event.SetEventObject(btn);
 366     btn->GetEventHandler()->ProcessEvent(event);
 367
 368     return true;
 369 #else // !wxUSE_BUTTON
 370     wxUnusedVar(id);
 371     return false;
 372 #endif // wxUSE_BUTTON/!wxUSE_BUTTON
 373 }
 374
 375 bool wxDialogBase::IsEscapeKey(const wxKeyEvent& event)
 376 {
 377     // for most platforms, Esc key is used to close the dialogs
 378     return event.GetKeyCode() == WXK_ESCAPE &&
 379                 event.GetModifiers() == wxMOD_NONE;
 380 }
 381
 382 void wxDialogBase::OnCharHook(wxKeyEvent& event)
 383 {
 384     if ( event.GetKeyCode() == WXK_ESCAPE )
 385     {
 386         int idCancel = GetEscapeId();
 387         switch ( idCancel )
 388         {
 389             case wxID_NONE:
 390                 // don't handle Esc specially at all
 391                 break;
 392
 393             case wxID_ANY:
 394                 // this value is special: it means translate Esc to wxID_CANCEL
 395                 // but if there is no such button, then fall back to wxID_OK
 396                 if ( EmulateButtonClickIfPresent(wxID_CANCEL) )
 397                     return;
 398                 idCancel = GetAffirmativeId();
 399                 // fall through
 400
 401             default:
 402                 // translate Esc to button press for the button with given id
 403                 if ( EmulateButtonClickIfPresent(idCancel) )
 404                     return;
 405         }
 406     }
 407
 408     event.Skip();
 409 }
 410
 411 void wxDialogBase::OnButton(wxCommandEvent& event)
 412 {
 413     const int id = event.GetId();
 414     if ( id == GetAffirmativeId() )
 415     {
 416         AcceptAndClose();
 417     }
 418     else if ( id == wxID_APPLY )
 419     {
 420         if ( Validate() )
 421             TransferDataFromWindow();
 422
 423         // TODO: disable the Apply button until things change again
 424     }
 425     else if ( id == GetEscapeId() ||
 426                 (id == wxID_CANCEL && GetEscapeId() == wxID_ANY) )
 427     {
 428         EndDialog(wxID_CANCEL);
 429     }
 430     else // not a standard button
 431     {
 432         event.Skip();
 433     }
 434 }
 435
 436 // ----------------------------------------------------------------------------
 437 // compatibility methods for supporting the modality API
 438 // ----------------------------------------------------------------------------
 439
 440 wxDEFINE_EVENT( wxEVT_WINDOW_MODAL_DIALOG_CLOSED , wxWindowModalDialogEvent  );
 441
 442 IMPLEMENT_DYNAMIC_CLASS(wxWindowModalDialogEvent, wxCommandEvent)
 443
 444 void wxDialogBase::ShowWindowModal ()
 445 {
 446     ShowModal();
 447     SendWindowModalDialogEvent ( wxEVT_WINDOW_MODAL_DIALOG_CLOSED  );
 448 }
 449
 450 void wxDialogBase::SendWindowModalDialogEvent ( wxEventType type )
 451 {
 452     wxWindowModalDialogEvent event ( type, GetId());
 453     event.SetEventObject(this);
 454
 455     if ( !GetEventHandler()->ProcessEvent(event) )
 456     {
 457         // the event is not propagated upwards to the parent automatically
 458         // because the dialog is a top level window, so do it manually as
 459         // in 9 cases of 10 the message must be processed by the dialog
 460         // owner and not the dialog itself
 461         (void)GetParent()->GetEventHandler()->ProcessEvent(event);
 462     }
 463 }
 464
 465
 466 wxDialogModality wxDialogBase::GetModality() const
 467 {
 468     return IsModal() ? wxDIALOG_MODALITY_APP_MODAL : wxDIALOG_MODALITY_NONE;
 469 }
 470
 471 // ----------------------------------------------------------------------------
 472 // other event handlers
 473 // ----------------------------------------------------------------------------
 474
 475 void wxDialogBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 476 {
 477     // We'll send a Cancel message by default, which may close the dialog.
 478     // Check for looping if the Cancel event handler calls Close().
 479
 480     // Note that if a cancel button and handler aren't present in the dialog,
 481     // nothing will happen when you close the dialog via the window manager, or
 482     // via Close(). We wouldn't want to destroy the dialog by default, since
 483     // the dialog may have been created on the stack. However, this does mean
 484     // that calling dialog->Close() won't delete the dialog unless the handler
 485     // for wxID_CANCEL does so. So use Destroy() if you want to be sure to
 486     // destroy the dialog. The default OnCancel (above) simply ends a modal
 487     // dialog, and hides a modeless dialog.
 488
 489     int idCancel = GetEscapeId();
 490     if ( idCancel == wxID_NONE )
 491         return;
 492     if ( idCancel == wxID_ANY )
 493         idCancel = wxID_CANCEL;
 494
 495     // VZ: this is horrible and MT-unsafe. Can't we reuse some of these global
 496     //     lists here? don't dare to change it now, but should be done later!
 497     static wxList closing;
 498
 499     if ( closing.Member(this) )
 500         return;
 501
 502     closing.Append(this);
 503
 504     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, idCancel);
 505     cancelEvent.SetEventObject( this );
 506     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 507
 508     closing.DeleteObject(this);
 509 }
 510
 511 void wxDialogBase::OnSysColourChanged(wxSysColourChangedEvent& event)
 512 {
 513 #ifndef __WXGTK__
 514     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 515     Refresh();
 516 #endif
 517
 518     event.Skip();
 519 }
 520
 521 /// Do the adaptation
 522 bool wxDialogBase::DoLayoutAdaptation()
 523 {
 524     if (GetLayoutAdapter())
 525     {
 526         wxWindow* focusWindow = wxFindFocusDescendant(this); // from event.h
 527         if (GetLayoutAdapter()->DoLayoutAdaptation((wxDialog*) this))
 528         {
 529             if (focusWindow)
 530                 focusWindow->SetFocus();
 531             return true;
 532         }
 533         else
 534             return false;
 535     }
 536     else
 537         return false;
 538 }
 539
 540 /// Can we do the adaptation?
 541 bool wxDialogBase::CanDoLayoutAdaptation()
 542 {
 543     // Check if local setting overrides the global setting
 544     bool layoutEnabled = (GetLayoutAdaptationMode() == wxDIALOG_ADAPTATION_MODE_ENABLED) || (IsLayoutAdaptationEnabled() && (GetLayoutAdaptationMode() != wxDIALOG_ADAPTATION_MODE_DISABLED));
 545
 546     return (layoutEnabled && !m_layoutAdaptationDone && GetLayoutAdaptationLevel() != 0 && GetLayoutAdapter() != NULL && GetLayoutAdapter()->CanDoLayoutAdaptation((wxDialog*) this));
 547 }
 548
 549 /// Set scrolling adapter class, returning old adapter
 550 wxDialogLayoutAdapter* wxDialogBase::SetLayoutAdapter(wxDialogLayoutAdapter* adapter)
 551 {
 552     wxDialogLayoutAdapter* oldLayoutAdapter = sm_layoutAdapter;
 553     sm_layoutAdapter = adapter;
 554     return oldLayoutAdapter;
 555 }
 556
 557 /*!
 558  * Standard adapter
 559  */
 560
 561 IMPLEMENT_CLASS(wxDialogLayoutAdapter, wxObject)
 562
 563 IMPLEMENT_CLASS(wxStandardDialogLayoutAdapter, wxDialogLayoutAdapter)
 564
 565 // Allow for caption size on wxWidgets < 2.9
 566 #if defined(__WXGTK__) && !wxCHECK_VERSION(2,9,0)
 567 #define wxEXTRA_DIALOG_HEIGHT 30
 568 #else
 569 #define wxEXTRA_DIALOG_HEIGHT 0
 570 #endif
 571
 572 /// Indicate that adaptation should be done
 573 bool wxStandardDialogLayoutAdapter::CanDoLayoutAdaptation(wxDialog* dialog)
 574 {
 575     if (dialog->GetSizer())
 576     {
 577         wxSize windowSize, displaySize;
 578         return MustScroll(dialog, windowSize, displaySize) != 0;
 579     }
 580     else
 581         return false;
 582 }
 583
 584 bool wxStandardDialogLayoutAdapter::DoLayoutAdaptation(wxDialog* dialog)
 585 {
 586     if (dialog->GetSizer())
 587     {
 588 #if wxUSE_BOOKCTRL
 589         wxBookCtrlBase* bookContentWindow = wxDynamicCast(dialog->GetContentWindow(), wxBookCtrlBase);
 590
 591         if (bookContentWindow)
 592         {
 593             // If we have a book control, make all the pages (that use sizers) scrollable
 594             wxWindowList windows;
 595             for (size_t i = 0; i < bookContentWindow->GetPageCount(); i++)
 596             {
 597                 wxWindow* page = bookContentWindow->GetPage(i);
 598
 599                 wxScrolledWindow* scrolledWindow = wxDynamicCast(page, wxScrolledWindow);
 600                 if (scrolledWindow)
 601                     windows.Append(scrolledWindow);
 602                 else if (!scrolledWindow && page->GetSizer())
 603                 {
 604                     // Create a scrolled window and reparent
 605                     scrolledWindow = CreateScrolledWindow(page);
 606                     wxSizer* oldSizer = page->GetSizer();
 607
 608                     wxSizer* newSizer = new wxBoxSizer(wxVERTICAL);
 609                     newSizer->Add(scrolledWindow,1, wxEXPAND, 0);
 610
 611                     page->SetSizer(newSizer, false /* don't delete the old sizer */);
 612
 613                     scrolledWindow->SetSizer(oldSizer);
 614
 615                     ReparentControls(page, scrolledWindow);
 616
 617                     windows.Append(scrolledWindow);
 618                 }
 619             }
 620
 621             FitWithScrolling(dialog, windows);
 622         }
 623         else
 624 #endif // wxUSE_BOOKCTRL
 625         {
 626             // If we have an arbitrary dialog, create a scrolling area for the main content, and a button sizer
 627             // for the main buttons.
 628             wxScrolledWindow* scrolledWindow = CreateScrolledWindow(dialog);
 629
 630             int buttonSizerBorder = 0;
 631
 632             // First try to find a wxStdDialogButtonSizer
 633             wxSizer* buttonSizer = FindButtonSizer(true /* find std button sizer */, dialog, dialog->GetSizer(), buttonSizerBorder);
 634
 635             // Next try to find a wxBoxSizer containing the controls
 636             if (!buttonSizer && dialog->GetLayoutAdaptationLevel() > wxDIALOG_ADAPTATION_STANDARD_SIZER)
 637                 buttonSizer = FindButtonSizer(false /* find ordinary sizer */, dialog, dialog->GetSizer(), buttonSizerBorder);
 638
 639             // If we still don't have a button sizer, collect any 'loose' buttons in the layout
 640             if (!buttonSizer && dialog->GetLayoutAdaptationLevel() > wxDIALOG_ADAPTATION_ANY_SIZER)
 641             {
 642                 int count = 0;
 643                 wxStdDialogButtonSizer* stdButtonSizer = new wxStdDialogButtonSizer;
 644                 buttonSizer = stdButtonSizer;
 645
 646                 FindLooseButtons(dialog, stdButtonSizer, dialog->GetSizer(), count);
 647                 if (count > 0)
 648                     stdButtonSizer->Realize();
 649                 else
 650                 {
 651                     wxDELETE(buttonSizer);
 652                 }
 653             }
 654
 655             if (buttonSizerBorder == 0)
 656                 buttonSizerBorder = 5;
 657
 658             ReparentControls(dialog, scrolledWindow, buttonSizer);
 659
 660             wxBoxSizer* newTopSizer = new wxBoxSizer(wxVERTICAL);
 661             wxSizer* oldSizer = dialog->GetSizer();
 662
 663             dialog->SetSizer(newTopSizer, false /* don't delete old sizer */);
 664
 665             newTopSizer->Add(scrolledWindow, 1, wxEXPAND|wxALL, 0);
 666             if (buttonSizer)
 667                 newTopSizer->Add(buttonSizer, 0, wxEXPAND|wxALL, buttonSizerBorder);
 668
 669             scrolledWindow->SetSizer(oldSizer);
 670
 671             FitWithScrolling(dialog, scrolledWindow);
 672         }
 673     }
 674
 675     dialog->SetLayoutAdaptationDone(true);
 676     return true;
 677 }
 678
 679 // Create the scrolled window
 680 wxScrolledWindow* wxStandardDialogLayoutAdapter::CreateScrolledWindow(wxWindow* parent)
 681 {
 682     wxScrolledWindow* scrolledWindow = new wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL|wxVSCROLL|wxHSCROLL|wxBORDER_NONE);
 683     return scrolledWindow;
 684 }
 685
 686 /// Find and remove the button sizer, if any
 687 wxSizer* wxStandardDialogLayoutAdapter::FindButtonSizer(bool stdButtonSizer, wxDialog* dialog, wxSizer* sizer, int& retBorder, int accumlatedBorder)
 688 {
 689     for ( wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 690           node; node = node->GetNext() )
 691     {
 692         wxSizerItem *item = node->GetData();
 693         wxSizer *childSizer = item->GetSizer();
 694
 695         if ( childSizer )
 696         {
 697             int newBorder = accumlatedBorder;
 698             if (item->GetFlag() & wxALL)
 699                 newBorder += item->GetBorder();
 700
 701             if (stdButtonSizer) // find wxStdDialogButtonSizer
 702             {
 703                 wxStdDialogButtonSizer* buttonSizer = wxDynamicCast(childSizer, wxStdDialogButtonSizer);
 704                 if (buttonSizer)
 705                 {
 706                     sizer->Detach(childSizer);
 707                     retBorder = newBorder;
 708                     return buttonSizer;
 709                 }
 710             }
 711             else // find a horizontal box sizer containing standard buttons
 712             {
 713                 wxBoxSizer* buttonSizer = wxDynamicCast(childSizer, wxBoxSizer);
 714                 if (buttonSizer && IsOrdinaryButtonSizer(dialog, buttonSizer))
 715                 {
 716                     sizer->Detach(childSizer);
 717                     retBorder = newBorder;
 718                     return buttonSizer;
 719                 }
 720             }
 721
 722             wxSizer* s = FindButtonSizer(stdButtonSizer, dialog, childSizer, retBorder, newBorder);
 723             if (s)
 724                 return s;
 725         }
 726     }
 727     return NULL;
 728 }
 729
 730 /// Check if this sizer contains standard buttons, and so can be repositioned in the dialog
 731 bool wxStandardDialogLayoutAdapter::IsOrdinaryButtonSizer(wxDialog* dialog, wxBoxSizer* sizer)
 732 {
 733     if (sizer->GetOrientation() != wxHORIZONTAL)
 734         return false;
 735
 736     for ( wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 737           node; node = node->GetNext() )
 738     {
 739         wxSizerItem *item = node->GetData();
 740         wxButton *childButton = wxDynamicCast(item->GetWindow(), wxButton);
 741
 742         if (childButton && IsStandardButton(dialog, childButton))
 743             return true;
 744     }
 745     return false;
 746 }
 747
 748 /// Check if this is a standard button
 749 bool wxStandardDialogLayoutAdapter::IsStandardButton(wxDialog* dialog, wxButton* button)
 750 {
 751     wxWindowID id = button->GetId();
 752
 753     return (id == wxID_OK || id == wxID_CANCEL || id == wxID_YES || id == wxID_NO || id == wxID_SAVE ||
 754             id == wxID_APPLY || id == wxID_HELP || id == wxID_CONTEXT_HELP || dialog->IsMainButtonId(id));
 755 }
 756
 757 /// Find 'loose' main buttons in the existing layout and add them to the standard dialog sizer
 758 bool wxStandardDialogLayoutAdapter::FindLooseButtons(wxDialog* dialog, wxStdDialogButtonSizer* buttonSizer, wxSizer* sizer, int& count)
 759 {
 760     wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 761     while (node)
 762     {
 763         wxSizerItemList::compatibility_iterator next = node->GetNext();
 764         wxSizerItem *item = node->GetData();
 765         wxSizer *childSizer = item->GetSizer();
 766         wxButton *childButton = wxDynamicCast(item->GetWindow(), wxButton);
 767
 768         if (childButton && IsStandardButton(dialog, childButton))
 769         {
 770             sizer->Detach(childButton);
 771             buttonSizer->AddButton(childButton);
 772             count ++;
 773         }
 774
 775         if (childSizer)
 776             FindLooseButtons(dialog, buttonSizer, childSizer, count);
 777
 778         node = next;
 779     }
 780     return true;
 781 }
 782
 783 /// Reparent the controls to the scrolled window
 784 void wxStandardDialogLayoutAdapter::ReparentControls(wxWindow* parent, wxWindow* reparentTo, wxSizer* buttonSizer)
 785 {
 786     DoReparentControls(parent, reparentTo, buttonSizer);
 787 }
 788
 789 void wxStandardDialogLayoutAdapter::DoReparentControls(wxWindow* parent, wxWindow* reparentTo, wxSizer* buttonSizer)
 790 {
 791     wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
 792     while (node)
 793     {
 794         wxWindowList::compatibility_iterator next = node->GetNext();
 795
 796         wxWindow *win = node->GetData();
 797
 798         // Don't reparent the scrolled window or buttons in the button sizer
 799         if (win != reparentTo && (!buttonSizer || !buttonSizer->GetItem(win)))
 800         {
 801             win->Reparent(reparentTo);
 802 #ifdef __WXMSW__
 803             // Restore correct tab order
 804             ::SetWindowPos((HWND) win->GetHWND(), HWND_BOTTOM, -1, -1, -1, -1, SWP_NOMOVE|SWP_NOSIZE);
 805 #endif
 806         }
 807
 808         node = next;
 809     }
 810 }
 811
 812 /// Find whether scrolling will be necessary for the dialog, returning wxVERTICAL, wxHORIZONTAL or both
 813 int wxStandardDialogLayoutAdapter::MustScroll(wxDialog* dialog, wxSize& windowSize, wxSize& displaySize)
 814 {
 815     return DoMustScroll(dialog, windowSize, displaySize);
 816 }
 817
 818 /// Find whether scrolling will be necessary for the dialog, returning wxVERTICAL, wxHORIZONTAL or both
 819 int wxStandardDialogLayoutAdapter::DoMustScroll(wxDialog* dialog, wxSize& windowSize, wxSize& displaySize)
 820 {
 821     wxSize minWindowSize = dialog->GetSizer()->GetMinSize();
 822     windowSize = dialog->GetSize();
 823     windowSize = wxSize(wxMax(windowSize.x, minWindowSize.x), wxMax(windowSize.y, minWindowSize.y));
 824 #if wxUSE_DISPLAY
 825     displaySize = wxDisplay(wxDisplay::GetFromWindow(dialog)).GetClientArea().GetSize();
 826 #else
 827     displaySize = wxGetClientDisplayRect().GetSize();
 828 #endif
 829
 830     int flags = 0;
 831
 832     if (windowSize.y >= (displaySize.y - wxEXTRA_DIALOG_HEIGHT))
 833         flags |= wxVERTICAL;
 834     if (windowSize.x >= displaySize.x)
 835         flags |= wxHORIZONTAL;
 836
 837     return flags;
 838 }
 839
 840 // A function to fit the dialog around its contents, and then adjust for screen size.
 841 // If scrolled windows are passed, scrolling is enabled in the required orientation(s).
 842 bool wxStandardDialogLayoutAdapter::FitWithScrolling(wxDialog* dialog, wxWindowList& windows)
 843 {
 844     return DoFitWithScrolling(dialog, windows);
 845 }
 846
 847 // A function to fit the dialog around its contents, and then adjust for screen size.
 848 // If a scrolled window is passed, scrolling is enabled in the required orientation(s).
 849 bool wxStandardDialogLayoutAdapter::FitWithScrolling(wxDialog* dialog, wxScrolledWindow* scrolledWindow)
 850 {
 851     return DoFitWithScrolling(dialog, scrolledWindow);
 852 }
 853
 854 // A function to fit the dialog around its contents, and then adjust for screen size.
 855 // If a scrolled window is passed, scrolling is enabled in the required orientation(s).
 856 bool wxStandardDialogLayoutAdapter::DoFitWithScrolling(wxDialog* dialog, wxScrolledWindow* scrolledWindow)
 857 {
 858     wxWindowList windows;
 859     windows.Append(scrolledWindow);
 860     return DoFitWithScrolling(dialog, windows);
 861 }
 862
 863 bool wxStandardDialogLayoutAdapter::DoFitWithScrolling(wxDialog* dialog, wxWindowList& windows)
 864 {
 865     wxSizer* sizer = dialog->GetSizer();
 866     if (!sizer)
 867         return false;
 868
 869     sizer->SetSizeHints(dialog);
 870
 871     wxSize windowSize, displaySize;
 872     int scrollFlags = DoMustScroll(dialog, windowSize, displaySize);
 873     int scrollBarSize = 20;
 874
 875     if (scrollFlags)
 876     {
 877         int scrollBarExtraX = 0, scrollBarExtraY = 0;
 878         bool resizeHorizontally = (scrollFlags & wxHORIZONTAL) != 0;
 879         bool resizeVertically = (scrollFlags & wxVERTICAL) != 0;
 880
 881         if (windows.GetCount() != 0)
 882         {
 883             // Allow extra for a scrollbar, assuming we resizing in one direction only.
 884             if ((resizeVertically && !resizeHorizontally) && (windowSize.x < (displaySize.x - scrollBarSize)))
 885                 scrollBarExtraX = scrollBarSize;
 886             if ((resizeHorizontally && !resizeVertically) && (windowSize.y < (displaySize.y - scrollBarSize)))
 887                 scrollBarExtraY = scrollBarSize;
 888         }
 889
 890         wxWindowList::compatibility_iterator node = windows.GetFirst();
 891         while (node)
 892         {
 893             wxWindow *win = node->GetData();
 894             wxScrolledWindow* scrolledWindow = wxDynamicCast(win, wxScrolledWindow);
 895             if (scrolledWindow)
 896             {
 897                 scrolledWindow->SetScrollRate(resizeHorizontally ? 10 : 0, resizeVertically ? 10 : 0);
 898
 899                 if (scrolledWindow->GetSizer())
 900                     scrolledWindow->GetSizer()->Fit(scrolledWindow);
 901             }
 902
 903             node = node->GetNext();
 904         }
 905
 906         wxSize limitTo = windowSize + wxSize(scrollBarExtraX, scrollBarExtraY);
 907         if (resizeVertically)
 908             limitTo.y = displaySize.y - wxEXTRA_DIALOG_HEIGHT;
 909         if (resizeHorizontally)
 910             limitTo.x = displaySize.x;
 911
 912         dialog->SetMinSize(limitTo);
 913         dialog->SetSize(limitTo);
 914
 915         dialog->SetSizeHints( limitTo.x, limitTo.y, dialog->GetMaxWidth(), dialog->GetMaxHeight() );
 916     }
 917
 918     return true;
 919 }
 920
 921 /*!
 922  * Module to initialise standard adapter
 923  */
 924
 925 class wxDialogLayoutAdapterModule: public wxModule
 926 {
 927     DECLARE_DYNAMIC_CLASS(wxDialogLayoutAdapterModule)
 928 public:
 929     wxDialogLayoutAdapterModule() {}
 930     virtual void OnExit() { delete wxDialogBase::SetLayoutAdapter(NULL); }
 931     virtual bool OnInit() { wxDialogBase::SetLayoutAdapter(new wxStandardDialogLayoutAdapter); return true; }
 932 };
 933
 934 IMPLEMENT_DYNAMIC_CLASS(wxDialogLayoutAdapterModule, wxModule)