src/osx/carbon/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dialog.cpp
   3 // Purpose:     wxDialog class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/dialog.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/app.h"
  18     #include "wx/utils.h"
  19     #include "wx/frame.h"
  20     #include "wx/settings.h"
  21 #endif // WX_PRECOMP
  22
  23 #include "wx/mac/uma.h"
  24
  25
  26 // Lists to keep track of windows, so we can disable/enable them
  27 // for modal dialogs
  28 wxList wxModalDialogs;
  29
  30 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
  31
  32 void wxDialog::Init()
  33 {
  34     m_isModalStyle = false;
  35 }
  36
  37 bool wxDialog::Create( wxWindow *parent,
  38     wxWindowID id,
  39     const wxString& title,
  40     const wxPoint& pos,
  41     const wxSize& size,
  42     long style,
  43     const wxString& name )
  44 {
  45     SetExtraStyle( GetExtraStyle() | wxTOPLEVEL_EX_DIALOG );
  46
  47     // All dialogs should really have this style...
  48     style |= wxTAB_TRAVERSAL;
  49
  50     // ...but not these styles
  51     style &= ~(wxYES | wxOK | wxNO); // | wxCANCEL
  52
  53     if ( !wxTopLevelWindow::Create( parent, id, title, pos, size, style, name ) )
  54         return false;
  55
  56     return true;
  57 }
  58
  59 void wxDialog::SetModal( bool flag )
  60 {
  61     if ( flag )
  62     {
  63         m_isModalStyle = true;
  64
  65         SetWindowModality( (WindowRef)MacGetWindowRef(), kWindowModalityAppModal, NULL ) ;
  66     }
  67     else
  68     {
  69         m_isModalStyle = false;
  70     }
  71 }
  72
  73 wxDialog::~wxDialog()
  74 {
  75     m_isBeingDeleted = true;
  76
  77     // if the dialog is modal, this will end its event loop
  78     Show(false);
  79 }
  80
  81 // On mac command-stop does the same thing as Esc, let the base class know
  82 // about it
  83 bool wxDialog::IsEscapeKey(const wxKeyEvent& event)
  84 {
  85     if ( event.GetKeyCode() == '.' && event.GetModifiers() == wxMOD_CMD )
  86         return true;
  87
  88     return wxDialogBase::IsEscapeKey(event);
  89 }
  90
  91 bool wxDialog::IsModal() const
  92 {
  93     return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
  94     //    return m_isModalStyle;
  95 }
  96
  97
  98 bool wxDialog::Show(bool show)
  99 {
 100     if ( !wxDialogBase::Show(show) )
 101         // nothing to do
 102         return false;
 103
 104     if (show && CanDoLayoutAdaptation())
 105         DoLayoutAdaptation();
 106
 107     if ( show )
 108         // usually will result in TransferDataToWindow() being called
 109         InitDialog();
 110
 111     HiliteMenu(0);
 112
 113     if ( m_isModalStyle )
 114     {
 115         if ( show )
 116         {
 117             DoShowModal();
 118         }
 119         else // end of modal dialog
 120         {
 121             // this will cause IsModalShowing() return false and our local
 122             // message loop will terminate
 123             wxModalDialogs.DeleteObject(this);
 124         }
 125     }
 126
 127     return true;
 128 }
 129
 130 void wxDialog::DoShowModal()
 131 {
 132     wxCHECK_RET( !IsModal(), wxT("DoShowModal() called twice") );
 133
 134     wxModalDialogs.Append(this);
 135
 136     SetFocus() ;
 137
 138     WindowRef windowRef = (WindowRef) MacGetWindowRef();
 139     WindowGroupRef windowGroup;
 140     WindowGroupRef formerParentGroup;
 141     bool resetGroupParent = false;
 142
 143     if ( GetParent() == NULL )
 144     {
 145         windowGroup = GetWindowGroup(windowRef) ;
 146         formerParentGroup = GetWindowGroupParent( windowGroup );
 147         SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
 148         resetGroupParent = true;
 149     }
 150     BeginAppModalStateForWindow(windowRef) ;
 151
 152     while ( IsModal() )
 153     {
 154         wxTheApp->MacDoOneEvent() ;
 155         // calls process idle itself
 156     }
 157
 158     EndAppModalStateForWindow(windowRef) ;
 159     if ( resetGroupParent )
 160     {
 161         SetWindowGroupParent( windowGroup , formerParentGroup );
 162     }
 163 }
 164
 165
 166 // Replacement for Show(true) for modal dialogs - returns return code
 167 int wxDialog::ShowModal()
 168 {
 169     if ( !m_isModalStyle )
 170         SetModal(true);
 171
 172     Show(true);
 173
 174     return GetReturnCode();
 175 }
 176
 177 // NB: this function (surprizingly) may be called for both modal and modeless
 178 //     dialogs and should work for both of them
 179 void wxDialog::EndModal(int retCode)
 180 {
 181     SetReturnCode(retCode);
 182     Show(false);
 183     SetModal(false);
 184 }
 185