samples/power/power.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        power.cpp
   3 // Purpose:     wxWidgets power management sample
   4 // Author:      Vadim Zeitlin
   5 // Created:     2006-05-27
   6 // RCS-ID:      $Id$
   7 // Copyright:   (C) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/wxprec.h"
  20
  21 #ifdef __BORLANDC__
  22     #pragma hdrstop
  23 #endif
  24
  25 #ifndef WX_PRECOMP
  26     #include "wx/app.h"
  27     #include "wx/frame.h"
  28 #endif
  29
  30 #include "wx/textctrl.h"
  31 #include "wx/msgdlg.h"
  32
  33 #include "wx/power.h"
  34
  35 #if !defined(__WXMSW__) && !defined(__WXPM__)
  36     #include "../sample.xpm"
  37 #endif
  38
  39 // ----------------------------------------------------------------------------
  40 // main frame class
  41 // ----------------------------------------------------------------------------
  42
  43 class MyFrame : public wxFrame
  44 {
  45 public:
  46     MyFrame()
  47         : wxFrame(NULL, wxID_ANY, _T("wxWidgets Power Management Sample"),
  48                   wxDefaultPosition, wxSize(500, 200))
  49     {
  50         wxTextCtrl *text = new wxTextCtrl(this, wxID_ANY, _T(""),
  51                                           wxDefaultPosition, wxDefaultSize,
  52                                           wxTE_MULTILINE | wxTE_READONLY);
  53         m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(text));
  54
  55         SetIcon(wxICON(sample));
  56
  57         Show();
  58     }
  59
  60     virtual ~MyFrame()
  61     {
  62         delete wxLog::SetActiveTarget(m_logOld);
  63     }
  64
  65 private:
  66     void OnSuspending(wxPowerEvent& event)
  67     {
  68         wxLogMessage(_T("System suspend starting..."));
  69         if ( wxMessageBox(_T("Veto suspend?"), _T("Please answer"),
  70                           wxYES_NO, this) == wxYES )
  71         {
  72             event.Veto();
  73             wxLogMessage(_T("Vetoed suspend."));
  74         }
  75     }
  76
  77     void OnSuspended(wxPowerEvent& WXUNUSED(event))
  78     {
  79         wxLogMessage(_T("System is going to suspend."));
  80     }
  81
  82     void OnSuspendCancel(wxPowerEvent& WXUNUSED(event))
  83     {
  84         wxLogMessage(_T("System suspend was cancelled."));
  85     }
  86
  87     void OnResume(wxPowerEvent& WXUNUSED(event))
  88     {
  89         wxLogMessage(_T("System resumed from suspend."));
  90     }
  91
  92
  93     wxLog *m_logOld;
  94
  95     DECLARE_EVENT_TABLE()
  96 };
  97
  98 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  99     EVT_POWER_SUSPENDING(MyFrame::OnSuspending)
 100     EVT_POWER_SUSPENDED(MyFrame::OnSuspended)
 101     EVT_POWER_SUSPEND_CANCEL(MyFrame::OnSuspendCancel)
 102     EVT_POWER_RESUME(MyFrame::OnResume)
 103 END_EVENT_TABLE()
 104
 105 // ----------------------------------------------------------------------------
 106 // main application class
 107 // ----------------------------------------------------------------------------
 108
 109 class MyApp : public wxApp
 110 {
 111 public:
 112     virtual bool OnInit()
 113     {
 114         new MyFrame;
 115
 116         return true;
 117     }
 118 };
 119
 120 IMPLEMENT_APP(MyApp)