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 #include "wx/private/fontmgr.h"
  24
  25 //-----------------------------------------------------------------------------
  26 // wxApp initialization
  27 //-----------------------------------------------------------------------------
  28
  29 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  30
  31 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
  32     EVT_IDLE(wxAppBase::OnIdle)
  33 END_EVENT_TABLE()
  34
  35 wxApp::wxApp()
  36 {
  37 }
  38
  39 wxApp::~wxApp()
  40 {
  41 }
  42
  43 bool wxApp::Initialize(int& argc, wxChar **argv)
  44 {
  45     if ( !wxAppBase::Initialize(argc, argv) )
  46         return false;
  47
  48     if ( !wxDfbCheckReturn(DirectFBInit(&argc, &argv)) )
  49         return false;
  50
  51     if ( !wxIDirectFB::Get() )
  52         return false;
  53
  54     return true;
  55 }
  56
  57 void wxApp::CleanUp()
  58 {
  59     wxAppBase::CleanUp();
  60
  61     wxFontsManager::CleanUp();
  62
  63     wxEventLoop::CleanUp();
  64     wxIDirectFB::CleanUp();
  65 }
  66
  67 //-----------------------------------------------------------------------------
  68 // display mode
  69 //-----------------------------------------------------------------------------
  70
  71 static wxVideoMode GetCurrentVideoMode()
  72 {
  73     wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
  74     if ( !layer )
  75         return wxVideoMode(); // invalid
  76
  77     return layer->GetVideoMode();
  78 }
  79
  80 wxVideoMode wxApp::GetDisplayMode() const
  81 {
  82     if ( !m_videoMode.IsOk() )
  83         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  84
  85     return m_videoMode;
  86 }
  87
  88 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  89 {
  90     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
  91         return false;
  92
  93     m_videoMode = mode;
  94     return true;
  95 }
  96
  97 //-----------------------------------------------------------------------------
  98 // events processing related
  99 //-----------------------------------------------------------------------------
 100
 101 void wxApp::WakeUpIdle()
 102 {
 103 #if wxUSE_THREADS
 104     if (!wxThread::IsMain())
 105         wxMutexGuiEnter();
 106 #endif
 107
 108     wxEventLoop * const loop = wxEventLoop::GetActive();
 109     if ( loop )
 110         loop->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     wxEventLoop * const loop = wxEventLoop::GetActive();
 143     if ( loop )
 144         loop->Yield();
 145
 146     // it's necessary to call ProcessIdle() to update the frames sizes which
 147     // might have been changed (it also will update other things set from
 148     // OnUpdateUI() which is a nice (and desired) side effect)
 149     while ( ProcessIdle() ) {}
 150
 151     wxLog::Resume();
 152
 153     s_inYield = false;
 154
 155     return true;
 156 }