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/modalhook.h"
  26 #include "wx/os2/private.h"
  27
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #define wxDIALOG_DEFAULT_X 300
  32 #define wxDIALOG_DEFAULT_Y 300
  33
  34 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  35
  36 int wxMessageDialog::ShowModal()
  37 {
  38     WX_HOOK_MODAL_DIALOG();
  39
  40     HWND                            hWnd = 0;
  41     ULONG                           ulStyle = MB_OK;
  42     int                             nAns = wxOK;
  43     const long                      lStyle = GetMessageDialogStyle();
  44
  45     if (!wxTheApp->GetTopWindow())
  46     {
  47         //
  48         // when the message box is shown from wxApp::OnInit() (i.e. before the
  49         // message loop is entered), this must be done or the next message box
  50         // will never be shown - just try putting 2 calls to wxMessageBox() in
  51         // OnInit() to see it
  52         //
  53         while (wxTheApp->Pending())
  54             wxTheApp->Dispatch();
  55     }
  56
  57     if (m_parent)
  58         hWnd = (HWND) m_parent->GetHWND();
  59     else
  60         hWnd = HWND_DESKTOP;
  61     if (lStyle & wxYES_NO)
  62     {
  63         if (lStyle & wxCANCEL)
  64             ulStyle = MB_YESNOCANCEL;
  65         else
  66             ulStyle = MB_YESNO;
  67
  68         if (lStyle & wxNO_DEFAULT)
  69             ulStyle |= MB_DEFBUTTON2;
  70     }
  71
  72     if (lStyle & wxOK)
  73     {
  74         if (lStyle & wxCANCEL)
  75             ulStyle = MB_OKCANCEL;
  76         else
  77             ulStyle = MB_OK;
  78     }
  79
  80     switch ( GetEffectiveIcon() )
  81     {
  82         case wxICON_ERROR:
  83             ulStyle |= MB_ERROR;
  84             break;
  85
  86         case wxICON_WARNING:
  87             ulStyle |= MB_WARNING;
  88             break;
  89
  90         case wxICON_QUESTION:
  91             ulStyle |= MB_QUERY;
  92             break;
  93
  94         case wxICON_INFORMATION:
  95             ulStyle |= MB_INFORMATION;
  96             break;
  97     }
  98
  99     if (hWnd != HWND_DESKTOP)
 100         ulStyle |= MB_APPLMODAL;
 101     else
 102         ulStyle |= MB_SYSTEMMODAL;
 103
 104     //
 105     // This little line of code is get message boxes under OS/2 to
 106     // behve like the other ports.  In OS/2 if the parent is a window
 107     // it displays, clipped, in the window.  This centers it on the
 108     // desktop, like the other ports but still allows control over modality
 109     //
 110     hWnd = HWND_DESKTOP;
 111
 112     ULONG                           ulAns = ::WinMessageBox( hWnd
 113                                                             ,hWnd
 114                                                             ,GetFullMessage().c_str()
 115                                                             ,m_caption.c_str()
 116                                                             ,0L
 117                                                             ,ulStyle);
 118     switch (ulAns)
 119     {
 120         case MBID_CANCEL:
 121             nAns = wxID_CANCEL;
 122             break;
 123         case MBID_OK:
 124             nAns = wxID_OK;
 125             break;
 126         case MBID_YES:
 127             nAns = wxID_YES;
 128             break;
 129         case MBID_NO:
 130             nAns = wxID_NO;
 131             break;
 132         default:
 133            nAns = wxID_CANCEL;
 134     }
 135     return nAns;
 136 } // end of wxMessageDialog::ShowModal