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     wxVideoMode m;
  71
  72     wxIDirectFBSurfacePtr surface(wxIDirectFB::Get()->GetPrimarySurface());
  73     if ( !surface )
  74         return m; // invalid
  75
  76     surface->GetSize(&m.w, &m.h);
  77     m.bpp = surface->GetDepth();
  78
  79     return m;
  80 }
  81
  82 wxVideoMode wxApp::GetDisplayMode() const
  83 {
  84     if ( !m_videoMode.IsOk() )
  85         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  86
  87     return m_videoMode;
  88 }
  89
  90 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  91 {
  92     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
  93         return false;
  94
  95     m_videoMode = mode;
  96     return true;
  97 }
  98
  99 //-----------------------------------------------------------------------------
 100 // events processing related
 101 //-----------------------------------------------------------------------------
 102
 103 void wxApp::WakeUpIdle()
 104 {
 105 #if wxUSE_THREADS
 106     if (!wxThread::IsMain())
 107         wxMutexGuiEnter();
 108 #endif
 109
 110     wxEventLoop::GetActive()->WakeUp();
 111
 112 #if wxUSE_THREADS
 113     if (!wxThread::IsMain())
 114         wxMutexGuiLeave();
 115 #endif
 116 }
 117
 118
 119 bool wxApp::Yield(bool onlyIfNeeded)
 120 {
 121 #if wxUSE_THREADS
 122     if ( !wxThread::IsMain() )
 123         return true; // can't process events from other threads
 124 #endif // wxUSE_THREADS
 125
 126     static bool s_inYield = false;
 127
 128     if ( s_inYield )
 129     {
 130         if ( !onlyIfNeeded )
 131         {
 132             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 133         }
 134
 135         return false;
 136     }
 137
 138     s_inYield = true;
 139
 140     wxLog::Suspend();
 141
 142     if ( wxEventLoop::GetActive() )
 143     {
 144         while (wxEventLoop::GetActive()->Pending())
 145             wxEventLoop::GetActive()->Dispatch();
 146     }
 147
 148     // it's necessary to call ProcessIdle() to update the frames sizes which
 149     // might have been changed (it also will update other things set from
 150     // OnUpdateUI() which is a nice (and desired) side effect)
 151     while ( ProcessIdle() ) {}
 152
 153     wxLog::Resume();
 154
 155     s_inYield = false;
 156
 157     return true;
 158 }