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 and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  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     m_caption = caption;
  42     m_message = message;
  43     m_dialogStyle = style;
  44     m_parent = parent;
  45 }
  46
  47 int wxMessageDialog::ShowModal()
  48 {
  49     wxWindow *winTop = wxTheApp->GetTopWindow();
  50     if ( !winTop )
  51     {
  52         // when the message box is shown from wxApp::OnInit() (i.e. before the
  53         // message loop is entered), this must be done or the next message box
  54         // will never be shown - just try putting 2 calls to wxMessageBox() in
  55         // OnInit() to see it
  56         while ( wxTheApp->Pending() )
  57             wxTheApp->Dispatch();
  58     }
  59
  60     // use the top level window as parent if none specified
  61     HWND hWnd = 0;
  62     if ( m_parent )
  63         hWnd = GetHwndOf(m_parent);
  64     else if ( winTop )
  65         hWnd = GetHwndOf(winTop);
  66
  67     // translate wx style in MSW
  68     unsigned int msStyle = MB_OK;
  69     if (m_dialogStyle & wxYES_NO)
  70     {
  71         if (m_dialogStyle & wxCANCEL)
  72             msStyle = MB_YESNOCANCEL;
  73         else
  74             msStyle = MB_YESNO;
  75
  76         if (m_dialogStyle & wxNO_DEFAULT)
  77             msStyle |= MB_DEFBUTTON2;
  78     }
  79
  80     if (m_dialogStyle & wxOK)
  81     {
  82         if (m_dialogStyle & wxCANCEL)
  83             msStyle = MB_OKCANCEL;
  84         else
  85             msStyle = MB_OK;
  86     }
  87     if (m_dialogStyle & wxICON_EXCLAMATION)
  88         msStyle |= MB_ICONEXCLAMATION;
  89     else if (m_dialogStyle & wxICON_HAND)
  90         msStyle |= MB_ICONHAND;
  91     else if (m_dialogStyle & wxICON_INFORMATION)
  92         msStyle |= MB_ICONINFORMATION;
  93     else if (m_dialogStyle & wxICON_QUESTION)
  94         msStyle |= MB_ICONQUESTION;
  95
  96     if ( m_dialogStyle & wxSTAY_ON_TOP )
  97         msStyle |= MB_TOPMOST;
  98
  99     if (hWnd)
 100         msStyle |= MB_APPLMODAL;
 101     else
 102         msStyle |= MB_TASKMODAL;
 103
 104     // do show the dialog
 105     int msAns = MessageBox(hWnd, m_message.c_str(), m_caption.c_str(), msStyle);
 106     int ans;
 107     switch (msAns)
 108     {
 109         default:
 110             wxFAIL_MSG(_T("unexpected ::MessageBox() return code"));
 111             // fall through
 112
 113         case IDCANCEL:
 114             ans = wxID_CANCEL;
 115             break;
 116         case IDOK:
 117             ans = wxID_OK;
 118             break;
 119         case IDYES:
 120             ans = wxID_YES;
 121             break;
 122         case IDNO:
 123             ans = wxID_NO;
 124             break;
 125     }
 126     return ans;
 127 }
 128