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     wxEventLoop::CleanUp();
  61     wxIDirectFB::CleanUp();
  62 }
  63
  64 //-----------------------------------------------------------------------------
  65 // display mode
  66 //-----------------------------------------------------------------------------
  67
  68 static wxVideoMode GetCurrentVideoMode()
  69 {
  70     wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
  71     if ( !layer )
  72         return wxVideoMode(); // invalid
  73
  74     return layer->GetVideoMode();
  75 }
  76
  77 wxVideoMode wxApp::GetDisplayMode() const
  78 {
  79     if ( !m_videoMode.IsOk() )
  80         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  81
  82     return m_videoMode;
  83 }
  84
  85 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  86 {
  87     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
  88         return false;
  89
  90     m_videoMode = mode;
  91     return true;
  92 }
  93
  94 //-----------------------------------------------------------------------------
  95 // events processing related
  96 //-----------------------------------------------------------------------------
  97
  98 void wxApp::WakeUpIdle()
  99 {
 100 #if wxUSE_THREADS
 101     if (!wxThread::IsMain())
 102         wxMutexGuiEnter();
 103 #endif
 104
 105     wxEventLoop::GetActive()->WakeUp();
 106
 107 #if wxUSE_THREADS
 108     if (!wxThread::IsMain())
 109         wxMutexGuiLeave();
 110 #endif
 111 }
 112
 113
 114 bool wxApp::Yield(bool onlyIfNeeded)
 115 {
 116 #if wxUSE_THREADS
 117     if ( !wxThread::IsMain() )
 118         return true; // can't process events from other threads
 119 #endif // wxUSE_THREADS
 120
 121     static bool s_inYield = false;
 122
 123     if ( s_inYield )
 124     {
 125         if ( !onlyIfNeeded )
 126         {
 127             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 128         }
 129
 130         return false;
 131     }
 132
 133     s_inYield = true;
 134
 135     wxLog::Suspend();
 136
 137     if ( wxEventLoop::GetActive() )
 138     {
 139         while (wxEventLoop::GetActive()->Pending())
 140             wxEventLoop::GetActive()->Dispatch();
 141     }
 142
 143     // it's necessary to call ProcessIdle() to update the frames sizes which
 144     // might have been changed (it also will update other things set from
 145     // OnUpdateUI() which is a nice (and desired) side effect)
 146     while ( ProcessIdle() ) {}
 147
 148     wxLog::Resume();
 149
 150     s_inYield = false;
 151
 152     return true;
 153 }