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 IDirectFBPtr wxApp::GetDirectFBInterface()
  43 {
  44     return m_dfb;
  45 }
  46
  47 bool wxApp::Initialize(int& argc, wxChar **argv)
  48 {
  49     if ( !wxAppBase::Initialize(argc, argv) )
  50         return false;
  51
  52     if ( !DFB_CALL( DirectFBInit(&argc, &argv) ) )
  53         return false;
  54
  55     if ( !DFB_CALL( DirectFBCreate(&m_dfb) ) )
  56         return false;
  57
  58     #warning "FIXME: theme override is temporary"
  59     wxTheme::Set(wxTheme::Create(_T("gtk")));
  60
  61     return true;
  62 }
  63
  64 void wxApp::CleanUp()
  65 {
  66     wxAppBase::CleanUp();
  67
  68     m_dfb.Reset();
  69 }
  70
  71 //-----------------------------------------------------------------------------
  72 // display mode
  73 //-----------------------------------------------------------------------------
  74
  75 static wxVideoMode GetCurrentVideoMode()
  76 {
  77     wxVideoMode m;
  78
  79     IDirectFBSurfacePtr surface(wxDfbGetPrimarySurface());
  80     if ( !surface )
  81         return m; // invalid
  82
  83     DFB_CALL( surface->GetSize(surface, &m.w, &m.h) );
  84     m.bpp = wxDfbGetSurfaceDepth(surface);
  85
  86     return m;
  87 }
  88
  89 wxVideoMode wxApp::GetDisplayMode() const
  90 {
  91     if ( !m_videoMode.IsOk() )
  92         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
  93
  94     return m_videoMode;
  95 }
  96
  97 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
  98 {
  99     if ( !DFB_CALL( m_dfb->SetVideoMode(m_dfb, mode.w, mode.h, mode.bpp) ) )
 100         return false;
 101
 102     m_videoMode = mode;
 103     return true;
 104 }
 105
 106 //-----------------------------------------------------------------------------
 107 // events processing related
 108 //-----------------------------------------------------------------------------
 109
 110 void wxApp::WakeUpIdle()
 111 {
 112 #if wxUSE_THREADS
 113     if (!wxThread::IsMain())
 114         wxMutexGuiEnter();
 115 #endif
 116
 117     wxEventLoop::GetActive()->WakeUp();
 118
 119 #if wxUSE_THREADS
 120     if (!wxThread::IsMain())
 121         wxMutexGuiLeave();
 122 #endif
 123 }
 124
 125
 126 bool wxApp::Yield(bool onlyIfNeeded)
 127 {
 128 #if wxUSE_THREADS
 129     if ( !wxThread::IsMain() )
 130         return true; // can't process events from other threads
 131 #endif // wxUSE_THREADS
 132
 133     static bool s_inYield = false;
 134
 135     if ( s_inYield )
 136     {
 137         if ( !onlyIfNeeded )
 138         {
 139             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 140         }
 141
 142         return false;
 143     }
 144
 145     s_inYield = true;
 146
 147     wxLog::Suspend();
 148
 149     if ( wxEventLoop::GetActive() )
 150     {
 151         while (wxEventLoop::GetActive()->Pending())
 152             wxEventLoop::GetActive()->Dispatch();
 153     }
 154
 155     // it's necessary to call ProcessIdle() to update the frames sizes which
 156     // might have been changed (it also will update other things set from
 157     // OnUpdateUI() which is a nice (and desired) side effect)
 158     while ( ProcessIdle() ) {}
 159
 160     wxLog::Resume();
 161
 162     s_inYield = false;
 163
 164     return true;
 165 }