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 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  34
  35 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  36                                  const wxString& message,
  37                                  const wxString& caption,
  38                                  long style,
  39                                  const wxPoint& WXUNUSED(pos))
  40 {
  41 #ifdef __WXDEBUG__
  42     // check for common programming errors
  43     if ( (style & wxID_OK) == wxID_OK )
  44     {
  45         // programmer probably confused wxID_OK with wxOK. Correct one is wxOK.
  46         wxFAIL_MSG( _T("wxMessageBox: Did you mean wxOK (and not wxID_OK)?") );
  47     }
  48 #endif // __WXDEBUG__
  49
  50     m_caption = caption;
  51     m_message = message;
  52     m_dialogStyle = style;
  53     m_parent = parent;
  54 }
  55
  56 int wxMessageDialog::ShowModal()
  57 {
  58     if ( !wxTheApp->GetTopWindow() )
  59     {
  60         // when the message box is shown from wxApp::OnInit() (i.e. before the
  61         // message loop is entered), this must be done or the next message box
  62         // will never be shown - just try putting 2 calls to wxMessageBox() in
  63         // OnInit() to see it
  64         while ( wxTheApp->Pending() )
  65             wxTheApp->Dispatch();
  66     }
  67
  68     // use the top level window as parent if none specified
  69     if ( !m_parent )
  70         m_parent = FindSuitableParent();
  71     HWND hWnd = m_parent ? GetHwndOf(m_parent) : NULL;
  72
  73     // translate wx style in MSW
  74     unsigned int msStyle = MB_OK;
  75     if (m_dialogStyle & wxYES_NO)
  76     {
  77         if (m_dialogStyle & wxCANCEL)
  78             msStyle = MB_YESNOCANCEL;
  79         else
  80             msStyle = MB_YESNO;
  81
  82         if (m_dialogStyle & wxNO_DEFAULT)
  83             msStyle |= MB_DEFBUTTON2;
  84     }
  85
  86     if (m_dialogStyle & wxOK)
  87     {
  88         if (m_dialogStyle & wxCANCEL)
  89             msStyle = MB_OKCANCEL;
  90         else
  91             msStyle = MB_OK;
  92     }
  93     if (m_dialogStyle & wxICON_EXCLAMATION)
  94         msStyle |= MB_ICONEXCLAMATION;
  95     else if (m_dialogStyle & wxICON_HAND)
  96         msStyle |= MB_ICONHAND;
  97     else if (m_dialogStyle & wxICON_INFORMATION)
  98         msStyle |= MB_ICONINFORMATION;
  99     else if (m_dialogStyle & wxICON_QUESTION)
 100         msStyle |= MB_ICONQUESTION;
 101
 102     if ( m_dialogStyle & wxSTAY_ON_TOP )
 103         msStyle |= MB_TOPMOST;
 104
 105     if (hWnd)
 106         msStyle |= MB_APPLMODAL;
 107 #ifndef __WXWINCE__
 108     else
 109         msStyle |= MB_TASKMODAL;
 110 #endif
 111
 112     // do show the dialog
 113     int msAns = MessageBox(hWnd, m_message.c_str(), m_caption.c_str(), msStyle);
 114     int ans;
 115     switch (msAns)
 116     {
 117         default:
 118             wxFAIL_MSG(_T("unexpected ::MessageBox() return code"));
 119             // fall through
 120
 121         case IDCANCEL:
 122             ans = wxID_CANCEL;
 123             break;
 124         case IDOK:
 125             ans = wxID_OK;
 126             break;
 127         case IDYES:
 128             ans = wxID_YES;
 129             break;
 130         case IDNO:
 131             ans = wxID_NO;
 132             break;
 133     }
 134     return ans;
 135 }
 136