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     // update internal arg[cv] as DFB may have removed processed options:
  52     this->argc = argc;
  53     this->argv = argv;
  54
  55     if ( !wxIDirectFB::Get() )
  56         return false;
  57
  58     return true;
  59 }
  60
  61 void wxApp::CleanUp()
  62 {
  63     wxAppBase::CleanUp();
  64
  65     wxFontsManager::CleanUp();
  66
  67     wxEventLoop::CleanUp();
  68     wxIDirectFB::CleanUp();
  69 }
  70
  71 //-----------------------------------------------------------------------------
  72 // display mode
  73 //-----------------------------------------------------------------------------
  74
  75 static wxVideoMode GetCurrentVideoMode()
  76 {
  77     wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
  78     if ( !layer )
  79         return wxVideoMode(); // invalid
  80
  81     return layer->GetVideoMode();
  82 }
  83
  84 wxVideoMode wxApp::GetDisplayMode() const
  85 {
  86     if ( !m_videoMode.IsOk() )
  87         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  88
  89     return m_videoMode;
  90 }
  91
  92 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  93 {
  94     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
  95         return false;
  96
  97     m_videoMode = mode;
  98     return true;
  99 }
 100
 101 //-----------------------------------------------------------------------------
 102 // events processing related
 103 //-----------------------------------------------------------------------------
 104
 105 void wxApp::WakeUpIdle()
 106 {
 107 #if wxUSE_THREADS
 108     if (!wxThread::IsMain())
 109         wxMutexGuiEnter();
 110 #endif
 111
 112     wxEventLoop * const loop = wxEventLoop::GetActive();
 113     if ( loop )
 114         loop->WakeUp();
 115
 116 #if wxUSE_THREADS
 117     if (!wxThread::IsMain())
 118         wxMutexGuiLeave();
 119 #endif
 120 }
 121
 122
 123 bool wxApp::Yield(bool onlyIfNeeded)
 124 {
 125 #if wxUSE_THREADS
 126     if ( !wxThread::IsMain() )
 127         return true; // can't process events from other threads
 128 #endif // wxUSE_THREADS
 129
 130     static bool s_inYield = false;
 131
 132     if ( s_inYield )
 133     {
 134         if ( !onlyIfNeeded )
 135         {
 136             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 137         }
 138
 139         return false;
 140     }
 141
 142     s_inYield = true;
 143
 144     wxLog::Suspend();
 145
 146     wxEventLoop * const loop = wxEventLoop::GetActive();
 147     if ( loop )
 148         loop->Yield();
 149
 150     // it's necessary to call ProcessIdle() to update the frames sizes which
 151     // might have been changed (it also will update other things set from
 152     // OnUpdateUI() which is a nice (and desired) side effect)
 153     while ( ProcessIdle() ) {}
 154
 155     wxLog::Resume();
 156
 157     s_inYield = false;
 158
 159     return true;
 160 }