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 #if TARGET_CARBON
  68         SetWindowModality( (WindowRef)MacGetWindowRef(), kWindowModalityAppModal, NULL ) ;
  69 #endif
  70     }
  71     else
  72     {
  73         m_isModalStyle = false;
  74
  75         wxModelessWindows.Append( this );
  76     }
  77 }
  78
  79 wxDialog::~wxDialog()
  80 {
  81     m_isBeingDeleted = true;
  82     Show(false);
  83 }
  84
  85 // On mac command-stop does the same thing as Esc, let the base class know
  86 // about it
  87 bool wxDialog::IsEscapeKey(const wxKeyEvent& event)
  88 {
  89     if ( event.GetKeyCode() == '.' && event.GetModifiers() == wxMOD_CMD )
  90         return true;
  91
  92     return wxDialogBase::IsEscapeKey(event);
  93 }
  94
  95 bool wxDialog::IsModal() const
  96 {
  97     return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
  98     //    return m_isModalStyle;
  99 }
 100
 101
 102 bool wxDialog::Show(bool show)
 103 {
 104     if ( !wxDialogBase::Show(show) )
 105         // nothing to do
 106         return false;
 107
 108     if ( show )
 109         // usually will result in TransferDataToWindow() being called
 110         InitDialog();
 111
 112     HiliteMenu(0);
 113
 114     if ( m_isModalStyle )
 115     {
 116         if ( show )
 117         {
 118             DoShowModal();
 119         }
 120         else // end of modal dialog
 121         {
 122             // this will cause IsModalShowing() return false and our local
 123             // message loop will terminate
 124             wxModalDialogs.DeleteObject(this);
 125         }
 126     }
 127
 128     return true;
 129 }
 130
 131 #if !TARGET_CARBON
 132 extern bool s_macIsInModalLoop ;
 133 #endif
 134
 135 void wxDialog::DoShowModal()
 136 {
 137     wxCHECK_RET( !IsModal(), wxT("DoShowModal() called twice") );
 138
 139     wxModalDialogs.Append(this);
 140
 141     SetFocus() ;
 142
 143     WindowRef windowRef = (WindowRef) MacGetWindowRef();
 144     WindowGroupRef windowGroup;
 145     WindowGroupRef formerParentGroup;
 146     bool resetGroupParent = false;
 147
 148     if ( GetParent() == NULL )
 149     {
 150         windowGroup = GetWindowGroup(windowRef) ;
 151         formerParentGroup = GetWindowGroupParent( windowGroup );
 152         SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
 153         resetGroupParent = true;
 154     }
 155     BeginAppModalStateForWindow(windowRef) ;
 156
 157     while ( IsModal() )
 158     {
 159         wxTheApp->MacDoOneEvent() ;
 160         // calls process idle itself
 161     }
 162
 163     EndAppModalStateForWindow(windowRef) ;
 164     if ( resetGroupParent )
 165     {
 166         SetWindowGroupParent( windowGroup , formerParentGroup );
 167     }
 168 }
 169
 170
 171 // Replacement for Show(true) for modal dialogs - returns return code
 172 int wxDialog::ShowModal()
 173 {
 174     if ( !m_isModalStyle )
 175         SetModal(true);
 176
 177     Show(true);
 178
 179     return GetReturnCode();
 180 }
 181
 182 // NB: this function (surprizingly) may be called for both modal and modeless
 183 //     dialogs and should work for both of them
 184 void wxDialog::EndModal(int retCode)
 185 {
 186     SetReturnCode(retCode);
 187     Show(false);
 188     SetModal(false);
 189 }
 190