src/mgl/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mgl/app.cpp
   3 // Author:      Vaclav Slavik
   4 //              based on GTK and MSW implementations
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #include "wx/app.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/settings.h"
  21     #include "wx/frame.h"
  22     #include "wx/dialog.h"
  23     #include "wx/log.h"
  24     #include "wx/intl.h"
  25     #include "wx/module.h"
  26 #endif
  27
  28 #include "wx/evtloop.h"
  29 #include "wx/fontutil.h"
  30 #include "wx/univ/theme.h"
  31 #include "wx/univ/renderer.h"
  32 #include "wx/univ/colschem.h"
  33 #include "wx/sysopt.h"
  34 #include "wx/mgl/private.h"
  35 #include "wx/private/fontmgr.h"
  36
  37 //-----------------------------------------------------------------------------
  38 // wxApp::Exit()
  39 //-----------------------------------------------------------------------------
  40
  41 void wxApp::Exit()
  42 {
  43     MGL_exit();
  44     exit(0);
  45 }
  46
  47
  48 //-----------------------------------------------------------------------------
  49 // wxWakeUpIdle
  50 //-----------------------------------------------------------------------------
  51
  52 void wxApp::WakeUpIdle()
  53 {
  54 #if wxUSE_THREADS
  55     if (!wxThread::IsMain())
  56         wxMutexGuiEnter();
  57 #endif
  58
  59     while (wxTheApp->ProcessIdle())
  60         ;
  61
  62 #if wxUSE_THREADS
  63     if (!wxThread::IsMain())
  64         wxMutexGuiLeave();
  65 #endif
  66 }
  67
  68 //-----------------------------------------------------------------------------
  69 // Root window
  70 //-----------------------------------------------------------------------------
  71
  72 class wxRootWindow : public wxWindow
  73 {
  74     public:
  75         wxRootWindow() : wxWindow(NULL, wxID_ANY)
  76         {
  77             SetMGLwindow_t(MGL_wmGetRootWindow(g_winMng));
  78             SetBackgroundColour(wxTHEME_COLOUR(DESKTOP));
  79         }
  80         virtual ~wxRootWindow()
  81         {
  82             // we don't want to delete MGL_WM's rootWnd
  83             m_wnd = NULL;
  84         }
  85
  86         virtual bool AcceptsFocus() const { return false; }
  87
  88         DECLARE_DYNAMIC_CLASS(wxRootWindow)
  89 };
  90
  91 IMPLEMENT_DYNAMIC_CLASS(wxRootWindow, wxWindow)
  92
  93 static wxRootWindow *gs_rootWindow = NULL;
  94
  95 //-----------------------------------------------------------------------------
  96 // MGL initialization
  97 //-----------------------------------------------------------------------------
  98
  99 static bool wxCreateMGL_WM(const wxVideoMode& displayMode)
 100 {
 101     int mode;
 102     int refresh = MGL_DEFAULT_REFRESH;
 103
 104 #if wxUSE_SYSTEM_OPTIONS
 105     if ( wxSystemOptions::HasOption(wxT("mgl.screen-refresh")) )
 106         refresh = wxSystemOptions::GetOptionInt(wxT("mgl.screen-refresh"));
 107 #endif
 108
 109     mode = MGL_findMode(displayMode.GetWidth(),
 110                         displayMode.GetHeight(),
 111                         displayMode.GetDepth());
 112     if ( mode == -1 )
 113     {
 114         wxLogError(_("Mode %ix%i-%i not available."),
 115                      displayMode.GetWidth(),
 116                      displayMode.GetHeight(),
 117                      displayMode.GetDepth());
 118         return false;
 119     }
 120     g_displayDC = new MGLDisplayDC(mode, 1, refresh);
 121     if ( !g_displayDC->isValid() )
 122     {
 123         wxDELETE(g_displayDC);
 124         return false;
 125     }
 126
 127     g_winMng = MGL_wmCreate(g_displayDC->getDC());
 128     if (!g_winMng)
 129         return false;
 130
 131     return true;
 132 }
 133
 134 static void wxDestroyMGL_WM()
 135 {
 136     if ( g_winMng )
 137     {
 138         MGL_wmDestroy(g_winMng);
 139         g_winMng = NULL;
 140     }
 141     wxDELETE(g_displayDC);
 142 }
 143
 144 //-----------------------------------------------------------------------------
 145 // wxApp
 146 //-----------------------------------------------------------------------------
 147
 148 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 149
 150 wxApp::wxApp()
 151 {
 152 }
 153
 154 wxApp::~wxApp()
 155 {
 156 }
 157
 158 wxVideoMode wxGetDefaultDisplayMode()
 159 {
 160     wxString mode;
 161     unsigned w, h, bpp;
 162
 163     if ( !wxGetEnv(wxT("WXMODE"), &mode) ||
 164          (wxSscanf(mode.c_str(), wxT("%ux%u-%u"), &w, &h, &bpp) != 3) )
 165     {
 166         w = 640, h = 480, bpp = 16;
 167     }
 168
 169     return wxVideoMode(w, h, bpp);
 170 }
 171
 172 bool wxApp::SetDisplayMode(const wxVideoMode& mode)
 173 {
 174     if ( !mode.IsOk() )
 175     {
 176         return false;
 177     }
 178     if ( g_displayDC != NULL )
 179     {
 180         // FIXME_MGL -- we currently don't allow to switch video mode
 181         // more than once. This can hopefully be changed...
 182         wxFAIL_MSG(wxT("Can't change display mode after intialization!"));
 183         return false;
 184     }
 185
 186     if ( !wxCreateMGL_WM(mode) )
 187         return false;
 188     gs_rootWindow = new wxRootWindow;
 189
 190     m_displayMode = mode;
 191
 192     return true;
 193 }
 194
 195 bool wxApp::OnInitGui()
 196 {
 197     if ( !wxAppBase::OnInitGui() )
 198         return false;
 199
 200     // MGL redirects stdout and stderr to physical console, so lets redirect
 201     // it to file if WXSTDERR environment variable is set to be able to see
 202     // wxLogDebug() output
 203     wxString redirect;
 204     if ( wxGetEnv(wxT("WXSTDERR"), &redirect) )
 205         freopen(redirect.mb_str(), "wt", stderr);
 206
 207     wxLog *oldLog = wxLog::SetActiveTarget(new wxLogGui);
 208     if ( oldLog ) delete oldLog;
 209
 210     return true;
 211 }
 212
 213 bool wxApp::Initialize(int& argc, wxChar **argv)
 214 {
 215 #ifdef __DJGPP__
 216     // VS: disable long filenames under DJGPP as the very first thing,
 217     //     since SciTech MGL doesn't like them much...
 218     wxSetEnv(wxT("LFN"), wxT("N"));
 219 #endif
 220
 221     // intialize MGL before creating wxFontsManager since it uses MGL funcs
 222     if ( MGL_init(".", NULL) == 0 )
 223     {
 224         wxLogError(_("Cannot initialize SciTech MGL!"));
 225         return false;
 226     }
 227
 228     if ( !wxAppBase::Initialize(argc, argv) )
 229     {
 230         MGL_exit();
 231         return false;
 232     }
 233
 234 #if wxUSE_INTL
 235     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 236 #endif
 237
 238     return true;
 239 }
 240
 241 // Modules are cleaned up after wxApp::CleanUp(), and some modules may
 242 // require MGL to still be alive, e.g. the stock fonts need the fonts
 243 // manager. So append this module last minute in wxApp::CleanUp() to close
 244 // down MGL after all the other modules have been cleaned up.
 245 //
 246 struct wxMGLFinalCleanup: public wxModule
 247 {
 248     bool OnInit() { return true; }
 249
 250     void OnExit()
 251     {
 252         wxFontsManager::CleanUp();
 253
 254         wxDestroyMGL_WM();
 255         MGL_exit();
 256     }
 257 };
 258
 259 void wxApp::CleanUp()
 260 {
 261     delete gs_rootWindow;
 262
 263     wxAppBase::CleanUp();
 264
 265     wxModule::RegisterModule(new wxMGLFinalCleanup);
 266 }