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 #ifndef WX_PRECOMP
  16     #include <stdio.h>
  17     #include "wx/utils.h"
  18     #include "wx/dialog.h"
  19     #include "wx/app.h"
  20     #include "wx/msgdlg.h"
  21     #include "wx/math.h"
  22 #endif
  23
  24 #include "wx/os2/private.h"
  25
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #define wxDIALOG_DEFAULT_X 300
  30 #define wxDIALOG_DEFAULT_Y 300
  31
  32 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  33
  34 wxMessageDialog::wxMessageDialog( wxWindow*       WXUNUSED(pParent),
  35                                   const wxString& rsMessage,
  36                                   const wxString& rsCaption,
  37                                   long            lStyle,
  38                                   const wxPoint&  WXUNUSED(pPos) )
  39 {
  40     m_sCaption     = rsCaption;
  41     m_sMessage     = rsMessage;
  42     m_pParent      = NULL; // pParent;
  43     SetMessageDialogStyle(lStyle);
  44 } // end of wxMessageDialog::wxMessageDialog
  45
  46 int wxMessageDialog::ShowModal()
  47 {
  48     HWND                            hWnd = 0;
  49     ULONG                           ulStyle = MB_OK;
  50     int                             nAns = wxOK;
  51     const long                      lStyle = GetMessageDialogStyle();
  52
  53     if (!wxTheApp->GetTopWindow())
  54     {
  55         //
  56         // when the message box is shown from wxApp::OnInit() (i.e. before the
  57         // message loop is entered), this must be done or the next message box
  58         // will never be shown - just try putting 2 calls to wxMessageBox() in
  59         // OnInit() to see it
  60         //
  61         while (wxTheApp->Pending())
  62             wxTheApp->Dispatch();
  63     }
  64
  65     if (m_pParent)
  66         hWnd = (HWND) m_pParent->GetHWND();
  67     else
  68         hWnd = HWND_DESKTOP;
  69     if (lStyle & wxYES_NO)
  70     {
  71         if (lStyle & wxCANCEL)
  72             ulStyle = MB_YESNOCANCEL;
  73         else
  74             ulStyle = MB_YESNO;
  75
  76         if (lStyle & wxNO_DEFAULT)
  77             ulStyle |= MB_DEFBUTTON2;
  78     }
  79
  80     if (lStyle & wxOK)
  81     {
  82         if (lStyle & wxCANCEL)
  83             ulStyle = MB_OKCANCEL;
  84         else
  85             ulStyle = MB_OK;
  86     }
  87     if (lStyle & wxICON_EXCLAMATION)
  88         ulStyle |= MB_ICONEXCLAMATION;
  89     else if (lStyle & wxICON_HAND)
  90         ulStyle |= MB_ICONHAND;
  91     else if (lStyle & wxICON_INFORMATION)
  92         ulStyle |= MB_ICONEXCLAMATION;
  93     else if (lStyle & wxICON_QUESTION)
  94         ulStyle |= MB_ICONQUESTION;
  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                                                             ,(PSZ)m_sMessage.c_str()
 112                                                             ,(PSZ)m_sCaption.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