src/msw/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "msgdlg.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/app.h"
  25     #include "wx/defs.h"
  26     #include "wx/utils.h"
  27     #include "wx/dialog.h"
  28     #include "wx/msgdlg.h"
  29 #endif
  30
  31 #include "wx/msw/private.h"
  32
  33 // For MB_TASKMODAL
  34 #ifdef __WXWINCE__
  35 #include "wx/msw/wince/missing.h"
  36 #endif
  37
  38 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  39
  40 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  41                                  const wxString& message,
  42                                  const wxString& caption,
  43                                  long style,
  44                                  const wxPoint& WXUNUSED(pos))
  45 {
  46 #ifdef __WXDEBUG__
  47     // check for common programming errors
  48     if ( (style & wxID_OK) == wxID_OK )
  49     {
  50         // programmer probably confused wxID_OK with wxOK. Correct one is wxOK.
  51         wxFAIL_MSG( _T("wxMessageBox: Did you mean wxOK (and not wxID_OK)?") );
  52     }
  53 #endif // __WXDEBUG__
  54
  55     m_caption = caption;
  56     m_message = message;
  57     m_dialogStyle = style;
  58     m_parent = parent;
  59 }
  60
  61 int wxMessageDialog::ShowModal()
  62 {
  63     if ( !wxTheApp->GetTopWindow() )
  64     {
  65         // when the message box is shown from wxApp::OnInit() (i.e. before the
  66         // message loop is entered), this must be done or the next message box
  67         // will never be shown - just try putting 2 calls to wxMessageBox() in
  68         // OnInit() to see it
  69         while ( wxTheApp->Pending() )
  70             wxTheApp->Dispatch();
  71     }
  72
  73     // use the top level window as parent if none specified
  74     if ( !m_parent )
  75         m_parent = FindSuitableParent();
  76     HWND hWnd = m_parent ? GetHwndOf(m_parent) : NULL;
  77
  78     // translate wx style in MSW
  79     unsigned int msStyle = MB_OK;
  80     if (m_dialogStyle & wxYES_NO)
  81     {
  82         wxASSERT_MSG( (m_dialogStyle & wxYES_NO) == wxYES_NO,
  83                       _T("wxYES and wxNO may only be used together under MSW") );
  84
  85 #if !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
  86         if (m_dialogStyle & wxCANCEL)
  87             msStyle = MB_YESNOCANCEL;
  88         else
  89 #endif // !(__SMARTPHONE__ && __WXWINCE__)
  90             msStyle = MB_YESNO;
  91
  92         if (m_dialogStyle & wxNO_DEFAULT)
  93             msStyle |= MB_DEFBUTTON2;
  94     }
  95
  96     if (m_dialogStyle & wxOK)
  97     {
  98         if (m_dialogStyle & wxCANCEL)
  99             msStyle = MB_OKCANCEL;
 100         else
 101             msStyle = MB_OK;
 102     }
 103     if (m_dialogStyle & wxICON_EXCLAMATION)
 104         msStyle |= MB_ICONEXCLAMATION;
 105     else if (m_dialogStyle & wxICON_HAND)
 106         msStyle |= MB_ICONHAND;
 107     else if (m_dialogStyle & wxICON_INFORMATION)
 108         msStyle |= MB_ICONINFORMATION;
 109     else if (m_dialogStyle & wxICON_QUESTION)
 110         msStyle |= MB_ICONQUESTION;
 111
 112     if ( m_dialogStyle & wxSTAY_ON_TOP )
 113         msStyle |= MB_TOPMOST;
 114
 115     if (hWnd)
 116         msStyle |= MB_APPLMODAL;
 117     else
 118         msStyle |= MB_TASKMODAL;
 119
 120     // do show the dialog
 121     int msAns = MessageBox(hWnd, m_message.c_str(), m_caption.c_str(), msStyle);
 122     int ans;
 123     switch (msAns)
 124     {
 125         default:
 126             wxFAIL_MSG(_T("unexpected ::MessageBox() return code"));
 127             // fall through
 128
 129         case IDCANCEL:
 130             ans = wxID_CANCEL;
 131             break;
 132         case IDOK:
 133             ans = wxID_OK;
 134             break;
 135         case IDYES:
 136             ans = wxID_YES;
 137             break;
 138         case IDNO:
 139             ans = wxID_NO;
 140             break;
 141     }
 142     return ans;
 143 }
 144