src/osx/dialog_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/dialog_osx.cpp
   3 // Purpose:     wxDialog class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: dialog.cpp 54820 2008-07-29 20:04:11Z SC $
   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/osx/private.h"
  24
  25
  26 // Lists to keep track of windows, so we can disable/enable them
  27 // for modal dialogs
  28
  29 wxList wxModalDialogs;
  30
  31 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
  32
  33 void wxDialog::Init()
  34 {
  35     m_isModalStyle = false;
  36 }
  37
  38 bool wxDialog::Create( wxWindow *parent,
  39     wxWindowID id,
  40     const wxString& title,
  41     const wxPoint& pos,
  42     const wxSize& size,
  43     long style,
  44     const wxString& name )
  45 {
  46     SetExtraStyle( GetExtraStyle() | wxTOPLEVEL_EX_DIALOG );
  47
  48     // All dialogs should really have this style...
  49     style |= wxTAB_TRAVERSAL;
  50
  51     // ...but not these styles
  52     style &= ~(wxYES | wxOK | wxNO); // | wxCANCEL
  53
  54     if ( !wxTopLevelWindow::Create( parent, id, title, pos, size, style, name ) )
  55         return false;
  56
  57     return true;
  58 }
  59
  60 void wxDialog::SetModal( bool flag )
  61 {
  62     if ( flag )
  63     {
  64         m_isModalStyle = true;
  65     }
  66     else
  67     {
  68         m_isModalStyle = false;
  69     }
  70 }
  71
  72 wxDialog::~wxDialog()
  73 {
  74     SendDestroyEvent();
  75
  76     // if the dialog is modal, this will end its event loop
  77     Show(false);
  78 }
  79
  80 // On mac command-stop does the same thing as Esc, let the base class know
  81 // about it
  82 bool wxDialog::IsEscapeKey(const wxKeyEvent& event)
  83 {
  84     if ( event.GetKeyCode() == '.' && event.GetModifiers() == wxMOD_CMD )
  85         return true;
  86
  87     return wxDialogBase::IsEscapeKey(event);
  88 }
  89
  90 bool wxDialog::IsModal() const
  91 {
  92     return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
  93     //    return m_isModalStyle;
  94 }
  95
  96
  97 bool wxDialog::Show(bool show)
  98 {
  99     if ( !wxDialogBase::Show(show) )
 100         // nothing to do
 101         return false;
 102
 103     if (show && CanDoLayoutAdaptation())
 104         DoLayoutAdaptation();
 105
 106     if ( show )
 107         // usually will result in TransferDataToWindow() being called
 108         InitDialog();
 109
 110     if ( m_isModalStyle )
 111     {
 112         if ( show )
 113         {
 114             DoShowModal();
 115         }
 116         else // end of modal dialog
 117         {
 118             // this will cause IsModalShowing() return false and our local
 119             // message loop will terminate
 120             wxModalDialogs.DeleteObject(this);
 121         }
 122     }
 123
 124     return true;
 125 }
 126
 127 // Replacement for Show(true) for modal dialogs - returns return code
 128 int wxDialog::ShowModal()
 129 {
 130     if ( !m_isModalStyle )
 131         SetModal(true);
 132
 133     if ( IsShown() )
 134         DoShowModal();
 135     else
 136         Show(true);
 137
 138     return GetReturnCode();
 139 }
 140
 141 // NB: this function (surprizingly) may be called for both modal and modeless
 142 //     dialogs and should work for both of them
 143 void wxDialog::EndModal(int retCode)
 144 {
 145     SetReturnCode(retCode);
 146     Show(false);
 147     SetModal(false);
 148 }
 149