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/thread.h"
  23 #include "wx/dfb/private.h"
  24 #include "wx/private/fontmgr.h"
  25
  26 //-----------------------------------------------------------------------------
  27 // wxApp initialization
  28 //-----------------------------------------------------------------------------
  29
  30 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  31
  32 wxApp::wxApp()
  33 {
  34 }
  35
  36 wxApp::~wxApp()
  37 {
  38 }
  39
  40 bool wxApp::Initialize(int& argc, wxChar **argv)
  41 {
  42     if ( !wxAppBase::Initialize(argc, argv) )
  43         return false;
  44
  45     // FIXME-UTF8: This code is taken from wxGTK and duplicated here. This
  46     //             is just a temporary fix to make wxDFB compile in Unicode
  47     //             build, the real fix is to change Initialize()'s signature
  48     //             to use char* on Unix.
  49 #if wxUSE_UNICODE
  50     // DirectFBInit() wants UTF-8, not wchar_t, so convert
  51     int i;
  52     char **argvDFB = new char *[argc + 1];
  53     for ( i = 0; i < argc; i++ )
  54     {
  55         argvDFB[i] = strdup(wxConvUTF8.cWX2MB(argv[i]));
  56     }
  57
  58     argvDFB[argc] = NULL;
  59
  60     int argcDFB = argc;
  61
  62     if ( !wxDfbCheckReturn(DirectFBInit(&argcDFB, &argvDFB)) )
  63         return false;
  64
  65     if ( argcDFB != argc )
  66     {
  67         // we have to drop the parameters which were consumed by DFB+
  68         for ( i = 0; i < argcDFB; i++ )
  69         {
  70             while ( strcmp(wxConvUTF8.cWX2MB(argv[i]), argvDFB[i]) != 0 )
  71             {
  72                 memmove(argv + i, argv + i + 1, (argc - i)*sizeof(*argv));
  73             }
  74         }
  75
  76         argc = argcDFB;
  77     }
  78     //else: DirectFBInit() didn't modify our parameters
  79
  80     // free our copy
  81     for ( i = 0; i < argcDFB; i++ )
  82     {
  83         free(argvDFB[i]);
  84     }
  85
  86     delete [] argvDFB;
  87
  88 #else // ANSI
  89
  90     if ( !wxDfbCheckReturn(DirectFBInit(&argc, &argv)) )
  91         return false;
  92
  93 #endif // Unicode/ANSI
  94
  95     // update internal arg[cv] as DFB may have removed processed options:
  96     this->argc = argc;
  97     this->argv = argv;
  98
  99     if ( !wxIDirectFB::Get() )
 100         return false;
 101
 102     return true;
 103 }
 104
 105 void wxApp::CleanUp()
 106 {
 107     wxAppBase::CleanUp();
 108
 109     wxFontsManager::CleanUp();
 110
 111     wxEventLoop::CleanUp();
 112     wxIDirectFB::CleanUp();
 113 }
 114
 115 //-----------------------------------------------------------------------------
 116 // display mode
 117 //-----------------------------------------------------------------------------
 118
 119 static wxVideoMode GetCurrentVideoMode()
 120 {
 121     wxIDirectFBDisplayLayerPtr layer(wxIDirectFB::Get()->GetDisplayLayer());
 122     if ( !layer )
 123         return wxVideoMode(); // invalid
 124
 125     return layer->GetVideoMode();
 126 }
 127
 128 wxVideoMode wxApp::GetDisplayMode() const
 129 {
 130     if ( !m_videoMode.IsOk() )
 131         wxConstCast(this, wxApp)->m_videoMode = GetCurrentVideoMode();
 132
 133     return m_videoMode;
 134 }
 135
 136 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
 137 {
 138     if ( !wxIDirectFB::Get()->SetVideoMode(mode.w, mode.h, mode.bpp) )
 139         return false;
 140
 141     m_videoMode = mode;
 142     return true;
 143 }
 144
 145 //-----------------------------------------------------------------------------
 146 // events processing related
 147 //-----------------------------------------------------------------------------
 148
 149 void wxApp::WakeUpIdle()
 150 {
 151 #if wxUSE_THREADS
 152     if (!wxThread::IsMain())
 153         wxMutexGuiEnter();
 154 #endif
 155
 156     wxEventLoopBase * const loop = wxEventLoop::GetActive();
 157     if ( loop )
 158         loop->WakeUp();
 159
 160 #if wxUSE_THREADS
 161     if (!wxThread::IsMain())
 162         wxMutexGuiLeave();
 163 #endif
 164 }
 165
 166
 167 bool wxApp::Yield(bool onlyIfNeeded)
 168 {
 169 #if wxUSE_THREADS
 170     if ( !wxThread::IsMain() )
 171         return true; // can't process events from other threads
 172 #endif // wxUSE_THREADS
 173
 174     static bool s_inYield = false;
 175
 176     if ( s_inYield )
 177     {
 178         if ( !onlyIfNeeded )
 179         {
 180             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 181         }
 182
 183         return false;
 184     }
 185
 186     s_inYield = true;
 187
 188 #if wxUSE_LOG
 189     wxLog::Suspend();
 190 #endif // wxUSE_LOG
 191
 192     wxEventLoop * const
 193         loop = wx_static_cast(wxEventLoop *, wxEventLoop::GetActive());
 194     if ( loop )
 195         loop->Yield();
 196
 197     // it's necessary to call ProcessIdle() to update the frames sizes which
 198     // might have been changed (it also will update other things set from
 199     // OnUpdateUI() which is a nice (and desired) side effect)
 200     while ( ProcessIdle() ) {}
 201
 202 #if wxUSE_LOG
 203     wxLog::Resume();
 204 #endif // wxUSE_LOG
 205
 206     s_inYield = false;
 207
 208     return true;
 209 }