src/mac/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         wxModelessWindows.DeleteObject( this );
  66
  67         SetWindowModality( (WindowRef)MacGetWindowRef(), kWindowModalityAppModal, NULL ) ;
  68     }
  69     else
  70     {
  71         m_isModalStyle = false;
  72
  73         wxModelessWindows.Append( this );
  74     }
  75 }
  76
  77 wxDialog::~wxDialog()
  78 {
  79     m_isBeingDeleted = true;
  80     Show(false);
  81 }
  82
  83 // On mac command-stop does the same thing as Esc, let the base class know
  84 // about it
  85 bool wxDialog::IsEscapeKey(const wxKeyEvent& event)
  86 {
  87     if ( event.GetKeyCode() == '.' && event.GetModifiers() == wxMOD_CMD )
  88         return true;
  89
  90     return wxDialogBase::IsEscapeKey(event);
  91 }
  92
  93 bool wxDialog::IsModal() const
  94 {
  95     return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
  96     //    return m_isModalStyle;
  97 }
  98
  99
 100 bool wxDialog::Show(bool show)
 101 {
 102     if ( !wxDialogBase::Show(show) )
 103         // nothing to do
 104         return false;
 105
 106     if ( show )
 107         // usually will result in TransferDataToWindow() being called
 108         InitDialog();
 109
 110     HiliteMenu(0);
 111
 112     if ( m_isModalStyle )
 113     {
 114         if ( show )
 115         {
 116             DoShowModal();
 117         }
 118         else // end of modal dialog
 119         {
 120             // this will cause IsModalShowing() return false and our local
 121             // message loop will terminate
 122             wxModalDialogs.DeleteObject(this);
 123         }
 124     }
 125
 126     return true;
 127 }
 128
 129 void wxDialog::DoShowModal()
 130 {
 131     wxCHECK_RET( !IsModal(), wxT("DoShowModal() called twice") );
 132
 133     wxModalDialogs.Append(this);
 134
 135     SetFocus() ;
 136
 137     WindowRef windowRef = (WindowRef) MacGetWindowRef();
 138     WindowGroupRef windowGroup;
 139     WindowGroupRef formerParentGroup;
 140     bool resetGroupParent = false;
 141
 142     if ( GetParent() == NULL )
 143     {
 144         windowGroup = GetWindowGroup(windowRef) ;
 145         formerParentGroup = GetWindowGroupParent( windowGroup );
 146         SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
 147         resetGroupParent = true;
 148     }
 149     BeginAppModalStateForWindow(windowRef) ;
 150
 151     while ( IsModal() )
 152     {
 153         wxTheApp->MacDoOneEvent() ;
 154         // calls process idle itself
 155     }
 156
 157     EndAppModalStateForWindow(windowRef) ;
 158     if ( resetGroupParent )
 159     {
 160         SetWindowGroupParent( windowGroup , formerParentGroup );
 161     }
 162 }
 163
 164
 165 // Replacement for Show(true) for modal dialogs - returns return code
 166 int wxDialog::ShowModal()
 167 {
 168     if ( !m_isModalStyle )
 169         SetModal(true);
 170
 171     Show(true);
 172
 173     return GetReturnCode();
 174 }
 175
 176 // NB: this function (surprizingly) may be called for both modal and modeless
 177 //     dialogs and should work for both of them
 178 void wxDialog::EndModal(int retCode)
 179 {
 180     SetReturnCode(retCode);
 181     Show(false);
 182     SetModal(false);
 183 }
 184