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::CreateSeparatedSizer(wxSizer *sizer)
 222 {
 223     // Mac Human Interface Guidelines recommend not to use static lines as
 224     // grouping elements
 225 #if wxUSE_STATLINE && !defined(__WXMAC__)
 226     wxBoxSizer *topsizer = new wxBoxSizer(wxVERTICAL);
 227     topsizer->Add(new wxStaticLine(this),
 228                    wxSizerFlags().Expand().DoubleBorder(wxBOTTOM));
 229     topsizer->Add(sizer, wxSizerFlags().Expand());
 230     sizer = topsizer;
 231 #endif // wxUSE_STATLINE
 232
 233     return sizer;
 234 }
 235
 236 wxSizer *wxDialogBase::CreateSeparatedButtonSizer(long flags)
 237 {
 238     wxSizer *sizer = CreateButtonSizer(flags);
 239     if ( !sizer )
 240         return NULL;
 241
 242     return CreateSeparatedSizer(sizer);
 243 }
 244
 245 #if wxUSE_BUTTON
 246
 247 wxStdDialogButtonSizer *wxDialogBase::CreateStdDialogButtonSizer( long flags )
 248 {
 249     wxStdDialogButtonSizer *sizer = new wxStdDialogButtonSizer();
 250
 251     wxButton *ok = NULL;
 252     wxButton *yes = NULL;
 253     wxButton *no = NULL;
 254
 255     if (flags & wxOK)
 256     {
 257         ok = new wxButton(this, wxID_OK);
 258         sizer->AddButton(ok);
 259     }
 260
 261     if (flags & wxCANCEL)
 262     {
 263         wxButton *cancel = new wxButton(this, wxID_CANCEL);
 264         sizer->AddButton(cancel);
 265     }
 266
 267     if (flags & wxYES)
 268     {
 269         yes = new wxButton(this, wxID_YES);
 270         sizer->AddButton(yes);
 271     }
 272
 273     if (flags & wxNO)
 274     {
 275         no = new wxButton(this, wxID_NO);
 276         sizer->AddButton(no);
 277     }
 278
 279     if (flags & wxAPPLY)
 280     {
 281         wxButton *apply = new wxButton(this, wxID_APPLY);
 282         sizer->AddButton(apply);
 283     }
 284
 285     if (flags & wxCLOSE)
 286     {
 287         wxButton *close = new wxButton(this, wxID_CLOSE);
 288         sizer->AddButton(close);
 289     }
 290
 291     if (flags & wxHELP)
 292     {
 293         wxButton *help = new wxButton(this, wxID_HELP);
 294         sizer->AddButton(help);
 295     }
 296
 297     if (flags & wxNO_DEFAULT)
 298     {
 299         if (no)
 300         {
 301             no->SetDefault();
 302             no->SetFocus();
 303         }
 304     }
 305     else
 306     {
 307         if (ok)
 308         {
 309             ok->SetDefault();
 310             ok->SetFocus();
 311         }
 312         else if (yes)
 313         {
 314             yes->SetDefault();
 315             yes->SetFocus();
 316         }
 317     }
 318
 319     if (flags & wxOK)
 320         SetAffirmativeId(wxID_OK);
 321     else if (flags & wxYES)
 322         SetAffirmativeId(wxID_YES);
 323
 324     sizer->Realize();
 325
 326     return sizer;
 327 }
 328
 329 #endif // wxUSE_BUTTON
 330
 331 // ----------------------------------------------------------------------------
 332 // standard buttons handling
 333 // ----------------------------------------------------------------------------
 334
 335 void wxDialogBase::EndDialog(int rc)
 336 {
 337     if ( IsModal() )
 338         EndModal(rc);
 339     else
 340         Hide();
 341 }
 342
 343 void wxDialogBase::AcceptAndClose()
 344 {
 345     if ( Validate() && TransferDataFromWindow() )
 346     {
 347         EndDialog(m_affirmativeId);
 348     }
 349 }
 350
 351 void wxDialogBase::SetAffirmativeId(int affirmativeId)
 352 {
 353     m_affirmativeId = affirmativeId;
 354 }
 355
 356 void wxDialogBase::SetEscapeId(int escapeId)
 357 {
 358     m_escapeId = escapeId;
 359 }
 360
 361 bool wxDialogBase::EmulateButtonClickIfPresent(int id)
 362 {
 363 #if wxUSE_BUTTON
 364     wxButton *btn = wxDynamicCast(FindWindow(id), wxButton);
 365
 366     if ( !btn || !btn->IsEnabled() || !btn->IsShown() )
 367         return false;
 368
 369     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, id);
 370     event.SetEventObject(btn);
 371     btn->GetEventHandler()->ProcessEvent(event);
 372
 373     return true;
 374 #else // !wxUSE_BUTTON
 375     wxUnusedVar(id);
 376     return false;
 377 #endif // wxUSE_BUTTON/!wxUSE_BUTTON
 378 }
 379
 380 bool wxDialogBase::IsEscapeKey(const wxKeyEvent& event)
 381 {
 382     // for most platforms, Esc key is used to close the dialogs
 383     return event.GetKeyCode() == WXK_ESCAPE &&
 384                 event.GetModifiers() == wxMOD_NONE;
 385 }
 386
 387 void wxDialogBase::OnCharHook(wxKeyEvent& event)
 388 {
 389     if ( event.GetKeyCode() == WXK_ESCAPE )
 390     {
 391         int idCancel = GetEscapeId();
 392         switch ( idCancel )
 393         {
 394             case wxID_NONE:
 395                 // don't handle Esc specially at all
 396                 break;
 397
 398             case wxID_ANY:
 399                 // this value is special: it means translate Esc to wxID_CANCEL
 400                 // but if there is no such button, then fall back to wxID_OK
 401                 if ( EmulateButtonClickIfPresent(wxID_CANCEL) )
 402                     return;
 403                 idCancel = GetAffirmativeId();
 404                 // fall through
 405
 406             default:
 407                 // translate Esc to button press for the button with given id
 408                 if ( EmulateButtonClickIfPresent(idCancel) )
 409                     return;
 410         }
 411     }
 412
 413     event.Skip();
 414 }
 415
 416 void wxDialogBase::OnButton(wxCommandEvent& event)
 417 {
 418     const int id = event.GetId();
 419     if ( id == GetAffirmativeId() )
 420     {
 421         AcceptAndClose();
 422     }
 423     else if ( id == wxID_APPLY )
 424     {
 425         if ( Validate() )
 426             TransferDataFromWindow();
 427
 428         // TODO: disable the Apply button until things change again
 429     }
 430     else if ( id == GetEscapeId() ||
 431                 (id == wxID_CANCEL && GetEscapeId() == wxID_ANY) )
 432     {
 433         EndDialog(wxID_CANCEL);
 434     }
 435     else // not a standard button
 436     {
 437         event.Skip();
 438     }
 439 }
 440
 441 // ----------------------------------------------------------------------------
 442 // compatibility methods for supporting the modality API
 443 // ----------------------------------------------------------------------------
 444
 445 wxDEFINE_EVENT( wxEVT_WINDOW_MODAL_DIALOG_CLOSED , wxWindowModalDialogEvent  );
 446
 447 IMPLEMENT_DYNAMIC_CLASS(wxWindowModalDialogEvent, wxCommandEvent)
 448
 449 void wxDialogBase::ShowWindowModal ()
 450 {
 451     ShowModal();
 452     SendWindowModalDialogEvent ( wxEVT_WINDOW_MODAL_DIALOG_CLOSED  );
 453 }
 454
 455 void wxDialogBase::SendWindowModalDialogEvent ( wxEventType type )
 456 {
 457     wxWindowModalDialogEvent event ( type, GetId());
 458     event.SetEventObject(this);
 459
 460     if ( !GetEventHandler()->ProcessEvent(event) )
 461     {
 462         // the event is not propagated upwards to the parent automatically
 463         // because the dialog is a top level window, so do it manually as
 464         // in 9 cases of 10 the message must be processed by the dialog
 465         // owner and not the dialog itself
 466         (void)GetParent()->GetEventHandler()->ProcessEvent(event);
 467     }
 468 }
 469
 470
 471 wxDialogModality wxDialogBase::GetModality() const
 472 {
 473     return IsModal() ? wxDIALOG_MODALITY_APP_MODAL : wxDIALOG_MODALITY_NONE;
 474 }
 475
 476 // ----------------------------------------------------------------------------
 477 // other event handlers
 478 // ----------------------------------------------------------------------------
 479
 480 void wxDialogBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 481 {
 482     // We'll send a Cancel message by default, which may close the dialog.
 483     // Check for looping if the Cancel event handler calls Close().
 484
 485     // Note that if a cancel button and handler aren't present in the dialog,
 486     // nothing will happen when you close the dialog via the window manager, or
 487     // via Close(). We wouldn't want to destroy the dialog by default, since
 488     // the dialog may have been created on the stack. However, this does mean
 489     // that calling dialog->Close() won't delete the dialog unless the handler
 490     // for wxID_CANCEL does so. So use Destroy() if you want to be sure to
 491     // destroy the dialog. The default OnCancel (above) simply ends a modal
 492     // dialog, and hides a modeless dialog.
 493
 494     int idCancel = GetEscapeId();
 495     if ( idCancel == wxID_NONE )
 496         return;
 497     if ( idCancel == wxID_ANY )
 498         idCancel = wxID_CANCEL;
 499
 500     // VZ: this is horrible and MT-unsafe. Can't we reuse some of these global
 501     //     lists here? don't dare to change it now, but should be done later!
 502     static wxList closing;
 503
 504     if ( closing.Member(this) )
 505         return;
 506
 507     closing.Append(this);
 508
 509     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, idCancel);
 510     cancelEvent.SetEventObject( this );
 511     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 512
 513     closing.DeleteObject(this);
 514 }
 515
 516 void wxDialogBase::OnSysColourChanged(wxSysColourChangedEvent& event)
 517 {
 518 #ifndef __WXGTK__
 519     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 520     Refresh();
 521 #endif
 522
 523     event.Skip();
 524 }
 525
 526 /// Do the adaptation
 527 bool wxDialogBase::DoLayoutAdaptation()
 528 {
 529     if (GetLayoutAdapter())
 530     {
 531         wxWindow* focusWindow = wxFindFocusDescendant(this); // from event.h
 532         if (GetLayoutAdapter()->DoLayoutAdaptation((wxDialog*) this))
 533         {
 534             if (focusWindow)
 535                 focusWindow->SetFocus();
 536             return true;
 537         }
 538         else
 539             return false;
 540     }
 541     else
 542         return false;
 543 }
 544
 545 /// Can we do the adaptation?
 546 bool wxDialogBase::CanDoLayoutAdaptation()
 547 {
 548     // Check if local setting overrides the global setting
 549     bool layoutEnabled = (GetLayoutAdaptationMode() == wxDIALOG_ADAPTATION_MODE_ENABLED) || (IsLayoutAdaptationEnabled() && (GetLayoutAdaptationMode() != wxDIALOG_ADAPTATION_MODE_DISABLED));
 550
 551     return (layoutEnabled && !m_layoutAdaptationDone && GetLayoutAdaptationLevel() != 0 && GetLayoutAdapter() != NULL && GetLayoutAdapter()->CanDoLayoutAdaptation((wxDialog*) this));
 552 }
 553
 554 /// Set scrolling adapter class, returning old adapter
 555 wxDialogLayoutAdapter* wxDialogBase::SetLayoutAdapter(wxDialogLayoutAdapter* adapter)
 556 {
 557     wxDialogLayoutAdapter* oldLayoutAdapter = sm_layoutAdapter;
 558     sm_layoutAdapter = adapter;
 559     return oldLayoutAdapter;
 560 }
 561
 562 /*!
 563  * Standard adapter
 564  */
 565
 566 IMPLEMENT_CLASS(wxDialogLayoutAdapter, wxObject)
 567
 568 IMPLEMENT_CLASS(wxStandardDialogLayoutAdapter, wxDialogLayoutAdapter)
 569
 570 // Allow for caption size on wxWidgets < 2.9
 571 #if defined(__WXGTK__) && !wxCHECK_VERSION(2,9,0)
 572 #define wxEXTRA_DIALOG_HEIGHT 30
 573 #else
 574 #define wxEXTRA_DIALOG_HEIGHT 0
 575 #endif
 576
 577 /// Indicate that adaptation should be done
 578 bool wxStandardDialogLayoutAdapter::CanDoLayoutAdaptation(wxDialog* dialog)
 579 {
 580     if (dialog->GetSizer())
 581     {
 582         wxSize windowSize, displaySize;
 583         return MustScroll(dialog, windowSize, displaySize) != 0;
 584     }
 585     else
 586         return false;
 587 }
 588
 589 bool wxStandardDialogLayoutAdapter::DoLayoutAdaptation(wxDialog* dialog)
 590 {
 591     if (dialog->GetSizer())
 592     {
 593 #if wxUSE_BOOKCTRL
 594         wxBookCtrlBase* bookContentWindow = wxDynamicCast(dialog->GetContentWindow(), wxBookCtrlBase);
 595
 596         if (bookContentWindow)
 597         {
 598             // If we have a book control, make all the pages (that use sizers) scrollable
 599             wxWindowList windows;
 600             for (size_t i = 0; i < bookContentWindow->GetPageCount(); i++)
 601             {
 602                 wxWindow* page = bookContentWindow->GetPage(i);
 603
 604                 wxScrolledWindow* scrolledWindow = wxDynamicCast(page, wxScrolledWindow);
 605                 if (scrolledWindow)
 606                     windows.Append(scrolledWindow);
 607                 else if (!scrolledWindow && page->GetSizer())
 608                 {
 609                     // Create a scrolled window and reparent
 610                     scrolledWindow = CreateScrolledWindow(page);
 611                     wxSizer* oldSizer = page->GetSizer();
 612
 613                     wxSizer* newSizer = new wxBoxSizer(wxVERTICAL);
 614                     newSizer->Add(scrolledWindow,1, wxEXPAND, 0);
 615
 616                     page->SetSizer(newSizer, false /* don't delete the old sizer */);
 617
 618                     scrolledWindow->SetSizer(oldSizer);
 619
 620                     ReparentControls(page, scrolledWindow);
 621
 622                     windows.Append(scrolledWindow);
 623                 }
 624             }
 625
 626             FitWithScrolling(dialog, windows);
 627         }
 628         else
 629 #endif // wxUSE_BOOKCTRL
 630         {
 631             // If we have an arbitrary dialog, create a scrolling area for the main content, and a button sizer
 632             // for the main buttons.
 633             wxScrolledWindow* scrolledWindow = CreateScrolledWindow(dialog);
 634
 635             int buttonSizerBorder = 0;
 636
 637             // First try to find a wxStdDialogButtonSizer
 638             wxSizer* buttonSizer = FindButtonSizer(true /* find std button sizer */, dialog, dialog->GetSizer(), buttonSizerBorder);
 639
 640             // Next try to find a wxBoxSizer containing the controls
 641             if (!buttonSizer && dialog->GetLayoutAdaptationLevel() > wxDIALOG_ADAPTATION_STANDARD_SIZER)
 642                 buttonSizer = FindButtonSizer(false /* find ordinary sizer */, dialog, dialog->GetSizer(), buttonSizerBorder);
 643
 644             // If we still don't have a button sizer, collect any 'loose' buttons in the layout
 645             if (!buttonSizer && dialog->GetLayoutAdaptationLevel() > wxDIALOG_ADAPTATION_ANY_SIZER)
 646             {
 647                 int count = 0;
 648                 wxStdDialogButtonSizer* stdButtonSizer = new wxStdDialogButtonSizer;
 649                 buttonSizer = stdButtonSizer;
 650
 651                 FindLooseButtons(dialog, stdButtonSizer, dialog->GetSizer(), count);
 652                 if (count > 0)
 653                     stdButtonSizer->Realize();
 654                 else
 655                 {
 656                     wxDELETE(buttonSizer);
 657                 }
 658             }
 659
 660             if (buttonSizerBorder == 0)
 661                 buttonSizerBorder = 5;
 662
 663             ReparentControls(dialog, scrolledWindow, buttonSizer);
 664
 665             wxBoxSizer* newTopSizer = new wxBoxSizer(wxVERTICAL);
 666             wxSizer* oldSizer = dialog->GetSizer();
 667
 668             dialog->SetSizer(newTopSizer, false /* don't delete old sizer */);
 669
 670             newTopSizer->Add(scrolledWindow, 1, wxEXPAND|wxALL, 0);
 671             if (buttonSizer)
 672                 newTopSizer->Add(buttonSizer, 0, wxEXPAND|wxALL, buttonSizerBorder);
 673
 674             scrolledWindow->SetSizer(oldSizer);
 675
 676             FitWithScrolling(dialog, scrolledWindow);
 677         }
 678     }
 679
 680     dialog->SetLayoutAdaptationDone(true);
 681     return true;
 682 }
 683
 684 // Create the scrolled window
 685 wxScrolledWindow* wxStandardDialogLayoutAdapter::CreateScrolledWindow(wxWindow* parent)
 686 {
 687     wxScrolledWindow* scrolledWindow = new wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL|wxVSCROLL|wxHSCROLL|wxBORDER_NONE);
 688     return scrolledWindow;
 689 }
 690
 691 /// Find and remove the button sizer, if any
 692 wxSizer* wxStandardDialogLayoutAdapter::FindButtonSizer(bool stdButtonSizer, wxDialog* dialog, wxSizer* sizer, int& retBorder, int accumlatedBorder)
 693 {
 694     for ( wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 695           node; node = node->GetNext() )
 696     {
 697         wxSizerItem *item = node->GetData();
 698         wxSizer *childSizer = item->GetSizer();
 699
 700         if ( childSizer )
 701         {
 702             int newBorder = accumlatedBorder;
 703             if (item->GetFlag() & wxALL)
 704                 newBorder += item->GetBorder();
 705
 706             if (stdButtonSizer) // find wxStdDialogButtonSizer
 707             {
 708                 wxStdDialogButtonSizer* buttonSizer = wxDynamicCast(childSizer, wxStdDialogButtonSizer);
 709                 if (buttonSizer)
 710                 {
 711                     sizer->Detach(childSizer);
 712                     retBorder = newBorder;
 713                     return buttonSizer;
 714                 }
 715             }
 716             else // find a horizontal box sizer containing standard buttons
 717             {
 718                 wxBoxSizer* buttonSizer = wxDynamicCast(childSizer, wxBoxSizer);
 719                 if (buttonSizer && IsOrdinaryButtonSizer(dialog, buttonSizer))
 720                 {
 721                     sizer->Detach(childSizer);
 722                     retBorder = newBorder;
 723                     return buttonSizer;
 724                 }
 725             }
 726
 727             wxSizer* s = FindButtonSizer(stdButtonSizer, dialog, childSizer, retBorder, newBorder);
 728             if (s)
 729                 return s;
 730         }
 731     }
 732     return NULL;
 733 }
 734
 735 /// Check if this sizer contains standard buttons, and so can be repositioned in the dialog
 736 bool wxStandardDialogLayoutAdapter::IsOrdinaryButtonSizer(wxDialog* dialog, wxBoxSizer* sizer)
 737 {
 738     if (sizer->GetOrientation() != wxHORIZONTAL)
 739         return false;
 740
 741     for ( wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 742           node; node = node->GetNext() )
 743     {
 744         wxSizerItem *item = node->GetData();
 745         wxButton *childButton = wxDynamicCast(item->GetWindow(), wxButton);
 746
 747         if (childButton && IsStandardButton(dialog, childButton))
 748             return true;
 749     }
 750     return false;
 751 }
 752
 753 /// Check if this is a standard button
 754 bool wxStandardDialogLayoutAdapter::IsStandardButton(wxDialog* dialog, wxButton* button)
 755 {
 756     wxWindowID id = button->GetId();
 757
 758     return (id == wxID_OK || id == wxID_CANCEL || id == wxID_YES || id == wxID_NO || id == wxID_SAVE ||
 759             id == wxID_APPLY || id == wxID_HELP || id == wxID_CONTEXT_HELP || dialog->IsMainButtonId(id));
 760 }
 761
 762 /// Find 'loose' main buttons in the existing layout and add them to the standard dialog sizer
 763 bool wxStandardDialogLayoutAdapter::FindLooseButtons(wxDialog* dialog, wxStdDialogButtonSizer* buttonSizer, wxSizer* sizer, int& count)
 764 {
 765     wxSizerItemList::compatibility_iterator node = sizer->GetChildren().GetFirst();
 766     while (node)
 767     {
 768         wxSizerItemList::compatibility_iterator next = node->GetNext();
 769         wxSizerItem *item = node->GetData();
 770         wxSizer *childSizer = item->GetSizer();
 771         wxButton *childButton = wxDynamicCast(item->GetWindow(), wxButton);
 772
 773         if (childButton && IsStandardButton(dialog, childButton))
 774         {
 775             sizer->Detach(childButton);
 776             buttonSizer->AddButton(childButton);
 777             count ++;
 778         }
 779
 780         if (childSizer)
 781             FindLooseButtons(dialog, buttonSizer, childSizer, count);
 782
 783         node = next;
 784     }
 785     return true;
 786 }
 787
 788 /// Reparent the controls to the scrolled window
 789 void wxStandardDialogLayoutAdapter::ReparentControls(wxWindow* parent, wxWindow* reparentTo, wxSizer* buttonSizer)
 790 {
 791     DoReparentControls(parent, reparentTo, buttonSizer);
 792 }
 793
 794 void wxStandardDialogLayoutAdapter::DoReparentControls(wxWindow* parent, wxWindow* reparentTo, wxSizer* buttonSizer)
 795 {
 796     wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
 797     while (node)
 798     {
 799         wxWindowList::compatibility_iterator next = node->GetNext();
 800
 801         wxWindow *win = node->GetData();
 802
 803         // Don't reparent the scrolled window or buttons in the button sizer
 804         if (win != reparentTo && (!buttonSizer || !buttonSizer->GetItem(win)))
 805         {
 806             win->Reparent(reparentTo);
 807 #ifdef __WXMSW__
 808             // Restore correct tab order
 809             ::SetWindowPos((HWND) win->GetHWND(), HWND_BOTTOM, -1, -1, -1, -1, SWP_NOMOVE|SWP_NOSIZE);
 810 #endif
 811         }
 812
 813         node = next;
 814     }
 815 }
 816
 817 /// Find whether scrolling will be necessary for the dialog, returning wxVERTICAL, wxHORIZONTAL or both
 818 int wxStandardDialogLayoutAdapter::MustScroll(wxDialog* dialog, wxSize& windowSize, wxSize& displaySize)
 819 {
 820     return DoMustScroll(dialog, windowSize, displaySize);
 821 }
 822
 823 /// Find whether scrolling will be necessary for the dialog, returning wxVERTICAL, wxHORIZONTAL or both
 824 int wxStandardDialogLayoutAdapter::DoMustScroll(wxDialog* dialog, wxSize& windowSize, wxSize& displaySize)
 825 {
 826     wxSize minWindowSize = dialog->GetSizer()->GetMinSize();
 827     windowSize = dialog->GetSize();
 828     windowSize = wxSize(wxMax(windowSize.x, minWindowSize.x), wxMax(windowSize.y, minWindowSize.y));
 829 #if wxUSE_DISPLAY
 830     displaySize = wxDisplay(wxDisplay::GetFromWindow(dialog)).GetClientArea().GetSize();
 831 #else
 832     displaySize = wxGetClientDisplayRect().GetSize();
 833 #endif
 834
 835     int flags = 0;
 836
 837     if (windowSize.y >= (displaySize.y - wxEXTRA_DIALOG_HEIGHT))
 838         flags |= wxVERTICAL;
 839     if (windowSize.x >= displaySize.x)
 840         flags |= wxHORIZONTAL;
 841
 842     return flags;
 843 }
 844
 845 // A function to fit the dialog around its contents, and then adjust for screen size.
 846 // If scrolled windows are passed, scrolling is enabled in the required orientation(s).
 847 bool wxStandardDialogLayoutAdapter::FitWithScrolling(wxDialog* dialog, wxWindowList& windows)
 848 {
 849     return DoFitWithScrolling(dialog, windows);
 850 }
 851
 852 // A function to fit the dialog around its contents, and then adjust for screen size.
 853 // If a scrolled window is passed, scrolling is enabled in the required orientation(s).
 854 bool wxStandardDialogLayoutAdapter::FitWithScrolling(wxDialog* dialog, wxScrolledWindow* scrolledWindow)
 855 {
 856     return DoFitWithScrolling(dialog, scrolledWindow);
 857 }
 858
 859 // A function to fit the dialog around its contents, and then adjust for screen size.
 860 // If a scrolled window is passed, scrolling is enabled in the required orientation(s).
 861 bool wxStandardDialogLayoutAdapter::DoFitWithScrolling(wxDialog* dialog, wxScrolledWindow* scrolledWindow)
 862 {
 863     wxWindowList windows;
 864     windows.Append(scrolledWindow);
 865     return DoFitWithScrolling(dialog, windows);
 866 }
 867
 868 bool wxStandardDialogLayoutAdapter::DoFitWithScrolling(wxDialog* dialog, wxWindowList& windows)
 869 {
 870     wxSizer* sizer = dialog->GetSizer();
 871     if (!sizer)
 872         return false;
 873
 874     sizer->SetSizeHints(dialog);
 875
 876     wxSize windowSize, displaySize;
 877     int scrollFlags = DoMustScroll(dialog, windowSize, displaySize);
 878     int scrollBarSize = 20;
 879
 880     if (scrollFlags)
 881     {
 882         int scrollBarExtraX = 0, scrollBarExtraY = 0;
 883         bool resizeHorizontally = (scrollFlags & wxHORIZONTAL) != 0;
 884         bool resizeVertically = (scrollFlags & wxVERTICAL) != 0;
 885
 886         if (windows.GetCount() != 0)
 887         {
 888             // Allow extra for a scrollbar, assuming we resizing in one direction only.
 889             if ((resizeVertically && !resizeHorizontally) && (windowSize.x < (displaySize.x - scrollBarSize)))
 890                 scrollBarExtraX = scrollBarSize;
 891             if ((resizeHorizontally && !resizeVertically) && (windowSize.y < (displaySize.y - scrollBarSize)))
 892                 scrollBarExtraY = scrollBarSize;
 893         }
 894
 895         wxWindowList::compatibility_iterator node = windows.GetFirst();
 896         while (node)
 897         {
 898             wxWindow *win = node->GetData();
 899             wxScrolledWindow* scrolledWindow = wxDynamicCast(win, wxScrolledWindow);
 900             if (scrolledWindow)
 901             {
 902                 scrolledWindow->SetScrollRate(resizeHorizontally ? 10 : 0, resizeVertically ? 10 : 0);
 903
 904                 if (scrolledWindow->GetSizer())
 905                     scrolledWindow->GetSizer()->Fit(scrolledWindow);
 906             }
 907
 908             node = node->GetNext();
 909         }
 910
 911         wxSize limitTo = windowSize + wxSize(scrollBarExtraX, scrollBarExtraY);
 912         if (resizeVertically)
 913             limitTo.y = displaySize.y - wxEXTRA_DIALOG_HEIGHT;
 914         if (resizeHorizontally)
 915             limitTo.x = displaySize.x;
 916
 917         dialog->SetMinSize(limitTo);
 918         dialog->SetSize(limitTo);
 919
 920         dialog->SetSizeHints( limitTo.x, limitTo.y, dialog->GetMaxWidth(), dialog->GetMaxHeight() );
 921     }
 922
 923     return true;
 924 }
 925
 926 /*!
 927  * Module to initialise standard adapter
 928  */
 929
 930 class wxDialogLayoutAdapterModule: public wxModule
 931 {
 932     DECLARE_DYNAMIC_CLASS(wxDialogLayoutAdapterModule)
 933 public:
 934     wxDialogLayoutAdapterModule() {}
 935     virtual void OnExit() { delete wxDialogBase::SetLayoutAdapter(NULL); }
 936     virtual bool OnInit() { wxDialogBase::SetLayoutAdapter(new wxStandardDialogLayoutAdapter); return true; }
 937 };
 938
 939 IMPLEMENT_DYNAMIC_CLASS(wxDialogLayoutAdapterModule, wxModule)