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 wxMessageDialog::wxMessageDialog( wxWindow*       WXUNUSED(pParent),
  36                                   const wxString& rsMessage,
  37                                   const wxString& rsCaption,
  38                                   long            lStyle,
  39                                   const wxPoint&  WXUNUSED(pPos) )
  40 {
  41     m_sCaption     = rsCaption;
  42     m_sMessage     = rsMessage;
  43     m_pParent      = NULL; // pParent;
  44     SetMessageDialogStyle(lStyle);
  45 } // end of wxMessageDialog::wxMessageDialog
  46
  47 int wxMessageDialog::ShowModal()
  48 {
  49     HWND                            hWnd = 0;
  50     ULONG                           ulStyle = MB_OK;
  51     int                             nAns = wxOK;
  52     const long                      lStyle = GetMessageDialogStyle();
  53
  54     if (!wxTheApp->GetTopWindow())
  55     {
  56         //
  57         // when the message box is shown from wxApp::OnInit() (i.e. before the
  58         // message loop is entered), this must be done or the next message box
  59         // will never be shown - just try putting 2 calls to wxMessageBox() in
  60         // OnInit() to see it
  61         //
  62         while (wxTheApp->Pending())
  63             wxTheApp->Dispatch();
  64     }
  65
  66     if (m_pParent)
  67         hWnd = (HWND) m_pParent->GetHWND();
  68     else
  69         hWnd = HWND_DESKTOP;
  70     if (lStyle & wxYES_NO)
  71     {
  72         if (lStyle & wxCANCEL)
  73             ulStyle = MB_YESNOCANCEL;
  74         else
  75             ulStyle = MB_YESNO;
  76
  77         if (lStyle & wxNO_DEFAULT)
  78             ulStyle |= MB_DEFBUTTON2;
  79     }
  80
  81     if (lStyle & wxOK)
  82     {
  83         if (lStyle & wxCANCEL)
  84             ulStyle = MB_OKCANCEL;
  85         else
  86             ulStyle = MB_OK;
  87     }
  88     if (lStyle & wxICON_EXCLAMATION)
  89         ulStyle |= MB_ICONEXCLAMATION;
  90     else if (lStyle & wxICON_HAND)
  91         ulStyle |= MB_ICONHAND;
  92     else if (lStyle & wxICON_INFORMATION)
  93         ulStyle |= MB_ICONEXCLAMATION;
  94     else if (lStyle & wxICON_QUESTION)
  95         ulStyle |= MB_ICONQUESTION;
  96
  97     if (hWnd != HWND_DESKTOP)
  98         ulStyle |= MB_APPLMODAL;
  99     else
 100         ulStyle |= MB_SYSTEMMODAL;
 101
 102     //
 103     // This little line of code is get message boxes under OS/2 to
 104     // behve like the other ports.  In OS/2 if the parent is a window
 105     // it displays, clipped, in the window.  This centers it on the
 106     // desktop, like the other ports but still allows control over modality
 107     //
 108     hWnd = HWND_DESKTOP;
 109
 110     ULONG                           ulAns = ::WinMessageBox( hWnd
 111                                                             ,hWnd
 112                                                             ,(PSZ)m_sMessage.c_str()
 113                                                             ,(PSZ)m_sCaption.c_str()
 114                                                             ,0L
 115                                                             ,ulStyle);
 116     switch (ulAns)
 117     {
 118         case MBID_CANCEL:
 119             nAns = wxID_CANCEL;
 120             break;
 121         case MBID_OK:
 122             nAns = wxID_OK;
 123             break;
 124         case MBID_YES:
 125             nAns = wxID_YES;
 126             break;
 127         case MBID_NO:
 128             nAns = wxID_NO;
 129             break;
 130         default:
 131            nAns = wxID_CANCEL;
 132     }
 133     return nAns;
 134 } // end of wxMessageDialog::ShowModal