src/os2/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/10/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/msgdlg.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include <stdio.h>
  19     #include "wx/utils.h"
  20     #include "wx/dialog.h"
  21     #include "wx/app.h"
  22     #include "wx/math.h"
  23 #endif
  24
  25 #include "wx/os2/private.h"
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #define wxDIALOG_DEFAULT_X 300
  31 #define wxDIALOG_DEFAULT_Y 300
  32
  33 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  34
  35 int wxMessageDialog::ShowModal()
  36 {
  37     HWND                            hWnd = 0;
  38     ULONG                           ulStyle = MB_OK;
  39     int                             nAns = wxOK;
  40     const long                      lStyle = GetMessageDialogStyle();
  41
  42     if (!wxTheApp->GetTopWindow())
  43     {
  44         //
  45         // when the message box is shown from wxApp::OnInit() (i.e. before the
  46         // message loop is entered), this must be done or the next message box
  47         // will never be shown - just try putting 2 calls to wxMessageBox() in
  48         // OnInit() to see it
  49         //
  50         while (wxTheApp->Pending())
  51             wxTheApp->Dispatch();
  52     }
  53
  54     if (m_parent)
  55         hWnd = (HWND) m_parent->GetHWND();
  56     else
  57         hWnd = HWND_DESKTOP;
  58     if (lStyle & wxYES_NO)
  59     {
  60         if (lStyle & wxCANCEL)
  61             ulStyle = MB_YESNOCANCEL;
  62         else
  63             ulStyle = MB_YESNO;
  64
  65         if (lStyle & wxNO_DEFAULT)
  66             ulStyle |= MB_DEFBUTTON2;
  67     }
  68
  69     if (lStyle & wxOK)
  70     {
  71         if (lStyle & wxCANCEL)
  72             ulStyle = MB_OKCANCEL;
  73         else
  74             ulStyle = MB_OK;
  75     }
  76
  77     switch ( GetEffectiveIcon() )
  78     {
  79         case wxICON_ERROR:
  80             ulStyle |= MB_ERROR;
  81             break;
  82
  83         case wxICON_WARNING:
  84             ulStyle |= MB_WARNING;
  85             break;
  86
  87         case wxICON_QUESTION:
  88             ulStyle |= MB_QUERY;
  89             break;
  90
  91         case wxICON_INFORMATION:
  92             ulStyle |= MB_INFORMATION;
  93             break;
  94     }
  95
  96     if (hWnd != HWND_DESKTOP)
  97         ulStyle |= MB_APPLMODAL;
  98     else
  99         ulStyle |= MB_SYSTEMMODAL;
 100
 101     //
 102     // This little line of code is get message boxes under OS/2 to
 103     // behve like the other ports.  In OS/2 if the parent is a window
 104     // it displays, clipped, in the window.  This centers it on the
 105     // desktop, like the other ports but still allows control over modality
 106     //
 107     hWnd = HWND_DESKTOP;
 108
 109     ULONG                           ulAns = ::WinMessageBox( hWnd
 110                                                             ,hWnd
 111                                                             ,GetFullMessage().c_str()
 112                                                             ,m_caption.c_str()
 113                                                             ,0L
 114                                                             ,ulStyle);
 115     switch (ulAns)
 116     {
 117         case MBID_CANCEL:
 118             nAns = wxID_CANCEL;
 119             break;
 120         case MBID_OK:
 121             nAns = wxID_OK;
 122             break;
 123         case MBID_YES:
 124             nAns = wxID_YES;
 125             break;
 126         case MBID_NO:
 127             nAns = wxID_NO;
 128             break;
 129         default:
 130            nAns = wxID_CANCEL;
 131     }
 132     return nAns;
 133 } // end of wxMessageDialog::ShowModal