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     #warning "FIXME: theme override is temporary"
  54     wxTheme::Set(wxTheme::Create(_T("gtk")));
  55
  56     return true;
  57 }
  58
  59 void wxApp::CleanUp()
  60 {
  61     wxAppBase::CleanUp();
  62
  63     wxIDirectFB::CleanUp();
  64 }
  65
  66 //-----------------------------------------------------------------------------
  67 // display mode
  68 //-----------------------------------------------------------------------------
  69
  70 static wxVideoMode GetCurrentVideoMode()
  71 {
  72     wxVideoMode m;
  73
  74     wxIDirectFBSurfacePtr surface(wxDfbGetPrimarySurface());
  75     if ( !surface )
  76         return m; // invalid
  77
  78     surface->GetSize(&m.w, &m.h);
  79     m.bpp = wxDfbGetSurfaceDepth(surface);
  80
  81     return m;
  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::GetActive()->WakeUp();
 113
 114 #if wxUSE_THREADS
 115     if (!wxThread::IsMain())
 116         wxMutexGuiLeave();
 117 #endif
 118 }
 119
 120
 121 bool wxApp::Yield(bool onlyIfNeeded)
 122 {
 123 #if wxUSE_THREADS
 124     if ( !wxThread::IsMain() )
 125         return true; // can't process events from other threads
 126 #endif // wxUSE_THREADS
 127
 128     static bool s_inYield = false;
 129
 130     if ( s_inYield )
 131     {
 132         if ( !onlyIfNeeded )
 133         {
 134             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 135         }
 136
 137         return false;
 138     }
 139
 140     s_inYield = true;
 141
 142     wxLog::Suspend();
 143
 144     if ( wxEventLoop::GetActive() )
 145     {
 146         while (wxEventLoop::GetActive()->Pending())
 147             wxEventLoop::GetActive()->Dispatch();
 148     }
 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 }