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