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 #include "wx/evtloop.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/app.h"
  19     #include "wx/utils.h"
  20     #include "wx/frame.h"
  21     #include "wx/settings.h"
  22 #endif // WX_PRECOMP
  23
  24 #include "wx/osx/private.h"
  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_modality = wxDIALOG_MODALITY_NONE;
  36     m_eventLoop = NULL;
  37 }
  38
  39 bool wxDialog::Create( wxWindow *parent,
  40     wxWindowID id,
  41     const wxString& title,
  42     const wxPoint& pos,
  43     const wxSize& size,
  44     long style,
  45     const wxString& name )
  46 {
  47     SetExtraStyle( GetExtraStyle() | wxTOPLEVEL_EX_DIALOG );
  48
  49     // All dialogs should really have this style...
  50     style |= wxTAB_TRAVERSAL;
  51
  52     // ...but not these styles
  53     style &= ~(wxYES | wxOK | wxNO); // | wxCANCEL
  54
  55     if ( !wxTopLevelWindow::Create( parent, id, title, pos, size, style, name ) )
  56         return false;
  57
  58     return true;
  59 }
  60
  61 wxDialog::~wxDialog()
  62 {
  63     SendDestroyEvent();
  64
  65     // if the dialog is modal, this will end its event loop
  66     Show(false);
  67 }
  68
  69 // On mac command-stop does the same thing as Esc, let the base class know
  70 // about it
  71 bool wxDialog::IsEscapeKey(const wxKeyEvent& event)
  72 {
  73     if ( event.GetKeyCode() == '.' && event.GetModifiers() == wxMOD_CMD )
  74         return true;
  75
  76     return wxDialogBase::IsEscapeKey(event);
  77 }
  78
  79 bool wxDialog::IsModal() const
  80 {
  81     return m_modality != wxDIALOG_MODALITY_NONE;
  82 }
  83
  84 bool wxDialog::Show(bool show)
  85 {
  86     if ( m_modality == wxDIALOG_MODALITY_WINDOW_MODAL )
  87     {
  88         if ( !wxWindow::Show(show) )
  89             // nothing to do
  90             return false;
  91     }
  92     else
  93     {
  94         if ( !wxDialogBase::Show(show) )
  95             // nothing to do
  96             return false;
  97     }
  98
  99     if (show && CanDoLayoutAdaptation())
 100         DoLayoutAdaptation();
 101
 102     if ( show )
 103         // usually will result in TransferDataToWindow() being called
 104         InitDialog();
 105
 106     if ( !show )
 107     {
 108         switch( m_modality )
 109         {
 110             case wxDIALOG_MODALITY_WINDOW_MODAL:
 111                 EndWindowModal(); // OS X implementation method for cleanup
 112                 SendWindowModalDialogEvent ( wxEVT_WINDOW_MODAL_DIALOG_CLOSED  );
 113                 break;
 114             default:
 115                 break;
 116         }
 117         m_modality = wxDIALOG_MODALITY_NONE;
 118     }
 119
 120     return true;
 121 }
 122
 123 // Replacement for Show(true) for modal dialogs - returns return code
 124 int wxDialog::ShowModal()
 125 {
 126     m_modality = wxDIALOG_MODALITY_APP_MODAL;
 127
 128     Show();
 129
 130     wxModalEventLoop modalLoop(this);
 131     m_eventLoop = &modalLoop;
 132
 133     modalLoop.Run();
 134
 135     m_eventLoop = NULL;
 136
 137     return GetReturnCode();
 138 }
 139
 140 void wxDialog::ShowWindowModal()
 141 {
 142     m_modality = wxDIALOG_MODALITY_WINDOW_MODAL;
 143
 144     Show();
 145
 146     DoShowWindowModal();
 147 }
 148
 149 wxDialogModality wxDialog::GetModality() const
 150 {
 151     return m_modality;
 152 }
 153
 154 // NB: this function (surprisingly) may be called for both modal and modeless
 155 //     dialogs and should work for both of them
 156 void wxDialog::EndModal(int retCode)
 157 {
 158     if ( m_eventLoop )
 159         m_eventLoop->Exit(retCode);
 160
 161     SetReturnCode(retCode);
 162     Show(false);
 163 }
 164