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