src/dfb/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/dfb/app.cpp
   3 // Purpose:     wxApp implementation
   4 // Author:      Vaclav Slavik
   5 //              based on MGL implementation
   6 // Created:     2006-08-16
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2006 REA Elektronik GmbH
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/app.h"
  20
  21 #include "wx/evtloop.h"
  22 #include "wx/dfb/private.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // wxApp initialization
  26 //-----------------------------------------------------------------------------
  27
  28 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  29
  30 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
  31     EVT_IDLE(wxAppBase::OnIdle)
  32 END_EVENT_TABLE()
  33
  34 wxApp::wxApp()
  35 {
  36 }
  37
  38 wxApp::~wxApp()
  39 {
  40 }
  41
  42 bool wxApp::Initialize(int& argc, wxChar **argv)
  43 {
  44     if ( !wxAppBase::Initialize(argc, argv) )
  45         return false;
  46
  47     if ( !wxDfbCheckReturn(DirectFBInit(&argc, &argv)) )
  48         return false;
  49
  50     if ( !wxIDirectFB::Get() )
  51         return false;
  52
  53     return true;
  54 }
  55
  56 void wxApp::CleanUp()
  57 {
  58     wxAppBase::CleanUp();
  59
  60     wxIDirectFB::CleanUp();
  61 }
  62
  63 //-----------------------------------------------------------------------------
  64 // display mode
  65 //-----------------------------------------------------------------------------
  66
  67 static wxVideoMode GetCurrentVideoMode()
  68 {
  69     wxVideoMode m;
  70
  71     wxIDirectFBSurfacePtr surface(wxIDirectFB::Get()->GetPrimarySurface());
  72     if ( !surface )
  73         return m; // invalid
  74
  75     surface->GetSize(&m.w, &m.h);
  76     m.bpp = surface->GetDepth();
  77
  78     return m;
  79 }
  80
  81 wxVideoMode wxApp::GetDisplayMode() const
  82 {
  83     if ( !m_videoMode.IsOk() )
  84         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  85
  86     return m_videoMode;
  87 }
  88
  89 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  90 {
  91     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
  92         return false;
  93
  94     m_videoMode = mode;
  95     return true;
  96 }
  97
  98 //-----------------------------------------------------------------------------
  99 // events processing related
 100 //-----------------------------------------------------------------------------
 101
 102 void wxApp::WakeUpIdle()
 103 {
 104 #if wxUSE_THREADS
 105     if (!wxThread::IsMain())
 106         wxMutexGuiEnter();
 107 #endif
 108
 109     wxEventLoop::GetActive()->WakeUp();
 110
 111 #if wxUSE_THREADS
 112     if (!wxThread::IsMain())
 113         wxMutexGuiLeave();
 114 #endif
 115 }
 116
 117
 118 bool wxApp::Yield(bool onlyIfNeeded)
 119 {
 120 #if wxUSE_THREADS
 121     if ( !wxThread::IsMain() )
 122         return true; // can't process events from other threads
 123 #endif // wxUSE_THREADS
 124
 125     static bool s_inYield = false;
 126
 127     if ( s_inYield )
 128     {
 129         if ( !onlyIfNeeded )
 130         {
 131             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 132         }
 133
 134         return false;
 135     }
 136
 137     s_inYield = true;
 138
 139     wxLog::Suspend();
 140
 141     if ( wxEventLoop::GetActive() )
 142     {
 143         while (wxEventLoop::GetActive()->Pending())
 144             wxEventLoop::GetActive()->Dispatch();
 145     }
 146
 147     // it's necessary to call ProcessIdle() to update the frames sizes which
 148     // might have been changed (it also will update other things set from
 149     // OnUpdateUI() which is a nice (and desired) side effect)
 150     while ( ProcessIdle() ) {}
 151
 152     wxLog::Resume();
 153
 154     s_inYield = false;
 155
 156     return true;
 157 }