src/msw/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "msgdlg.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/app.h"
  25     #include "wx/defs.h"
  26     #include "wx/utils.h"
  27     #include "wx/dialog.h"
  28     #include "wx/msgdlg.h"
  29 #endif
  30
  31 #include "wx/msw/private.h"
  32
  33 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  34
  35 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  36                                  const wxString& message,
  37                                  const wxString& caption,
  38                                  long style,
  39                                  const wxPoint& WXUNUSED(pos))
  40 {
  41     m_caption = caption;
  42     m_message = message;
  43     m_dialogStyle = style;
  44     m_parent = parent;
  45 }
  46
  47 int wxMessageDialog::ShowModal()
  48 {
  49     if ( !wxTheApp->GetTopWindow() )
  50     {
  51         // when the message box is shown from wxApp::OnInit() (i.e. before the
  52         // message loop is entered), this must be done or the next message box
  53         // will never be shown - just try putting 2 calls to wxMessageBox() in
  54         // OnInit() to see it
  55         while ( wxTheApp->Pending() )
  56             wxTheApp->Dispatch();
  57     }
  58
  59     // use the top level window as parent if none specified
  60     if ( !m_parent )
  61         m_parent = FindSuitableParent();
  62     HWND hWnd = m_parent ? GetHwndOf(m_parent) : NULL;
  63
  64     // translate wx style in MSW
  65     unsigned int msStyle = MB_OK;
  66     if (m_dialogStyle & wxYES_NO)
  67     {
  68         if (m_dialogStyle & wxCANCEL)
  69             msStyle = MB_YESNOCANCEL;
  70         else
  71             msStyle = MB_YESNO;
  72
  73         if (m_dialogStyle & wxNO_DEFAULT)
  74             msStyle |= MB_DEFBUTTON2;
  75     }
  76
  77     if (m_dialogStyle & wxOK)
  78     {
  79         if (m_dialogStyle & wxCANCEL)
  80             msStyle = MB_OKCANCEL;
  81         else
  82             msStyle = MB_OK;
  83     }
  84     if (m_dialogStyle & wxICON_EXCLAMATION)
  85         msStyle |= MB_ICONEXCLAMATION;
  86     else if (m_dialogStyle & wxICON_HAND)
  87         msStyle |= MB_ICONHAND;
  88     else if (m_dialogStyle & wxICON_INFORMATION)
  89         msStyle |= MB_ICONINFORMATION;
  90     else if (m_dialogStyle & wxICON_QUESTION)
  91         msStyle |= MB_ICONQUESTION;
  92
  93     if ( m_dialogStyle & wxSTAY_ON_TOP )
  94         msStyle |= MB_TOPMOST;
  95
  96     if (hWnd)
  97         msStyle |= MB_APPLMODAL;
  98     else
  99         msStyle |= MB_TASKMODAL;
 100
 101     // do show the dialog
 102     int msAns = MessageBox(hWnd, m_message.c_str(), m_caption.c_str(), msStyle);
 103     int ans;
 104     switch (msAns)
 105     {
 106         default:
 107             wxFAIL_MSG(_T("unexpected ::MessageBox() return code"));
 108             // fall through
 109
 110         case IDCANCEL:
 111             ans = wxID_CANCEL;
 112             break;
 113         case IDOK:
 114             ans = wxID_OK;
 115             break;
 116         case IDYES:
 117             ans = wxID_YES;
 118             break;
 119         case IDNO:
 120             ans = wxID_NO;
 121             break;
 122     }
 123     return ans;
 124 }
 125