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 && CanDoLayoutAdaptation())
 107         DoLayoutAdaptation();
 108
 109     if ( show )
 110         // usually will result in TransferDataToWindow() being called
 111         InitDialog();
 112
 113     HiliteMenu(0);
 114
 115     if ( m_isModalStyle )
 116     {
 117         if ( show )
 118         {
 119             DoShowModal();
 120         }
 121         else // end of modal dialog
 122         {
 123             // this will cause IsModalShowing() return false and our local
 124             // message loop will terminate
 125             wxModalDialogs.DeleteObject(this);
 126         }
 127     }
 128
 129     return true;
 130 }
 131
 132 void wxDialog::DoShowModal()
 133 {
 134     wxCHECK_RET( !IsModal(), wxT("DoShowModal() called twice") );
 135
 136     wxModalDialogs.Append(this);
 137
 138     SetFocus() ;
 139
 140     WindowRef windowRef = (WindowRef) MacGetWindowRef();
 141     WindowGroupRef windowGroup;
 142     WindowGroupRef formerParentGroup;
 143     bool resetGroupParent = false;
 144
 145     if ( GetParent() == NULL )
 146     {
 147         windowGroup = GetWindowGroup(windowRef) ;
 148         formerParentGroup = GetWindowGroupParent( windowGroup );
 149         SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
 150         resetGroupParent = true;
 151     }
 152     BeginAppModalStateForWindow(windowRef) ;
 153
 154     while ( IsModal() )
 155     {
 156         wxTheApp->MacDoOneEvent() ;
 157         // calls process idle itself
 158     }
 159
 160     EndAppModalStateForWindow(windowRef) ;
 161     if ( resetGroupParent )
 162     {
 163         SetWindowGroupParent( windowGroup , formerParentGroup );
 164     }
 165 }
 166
 167
 168 // Replacement for Show(true) for modal dialogs - returns return code
 169 int wxDialog::ShowModal()
 170 {
 171     if ( !m_isModalStyle )
 172         SetModal(true);
 173
 174     Show(true);
 175
 176     return GetReturnCode();
 177 }
 178
 179 // NB: this function (surprizingly) may be called for both modal and modeless
 180 //     dialogs and should work for both of them
 181 void wxDialog::EndModal(int retCode)
 182 {
 183     SetReturnCode(retCode);
 184     Show(false);
 185     SetModal(false);
 186 }
 187