| 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 | #endif |
| 26 | |
| 27 | #include "wx/evtloop.h" |
| 28 | #include "wx/module.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 | |
| 36 | //----------------------------------------------------------------------------- |
| 37 | // wxApp::Exit() |
| 38 | //----------------------------------------------------------------------------- |
| 39 | |
| 40 | void wxApp::Exit() |
| 41 | { |
| 42 | MGL_exit(); |
| 43 | exit(0); |
| 44 | } |
| 45 | |
| 46 | //----------------------------------------------------------------------------- |
| 47 | // wxYield |
| 48 | //----------------------------------------------------------------------------- |
| 49 | |
| 50 | static bool gs_inYield = false; |
| 51 | |
| 52 | bool wxApp::Yield(bool onlyIfNeeded) |
| 53 | { |
| 54 | if ( gs_inYield ) |
| 55 | { |
| 56 | if ( !onlyIfNeeded ) |
| 57 | { |
| 58 | wxFAIL_MSG( wxT("wxYield called recursively" ) ); |
| 59 | } |
| 60 | |
| 61 | return false; |
| 62 | } |
| 63 | |
| 64 | #if wxUSE_THREADS |
| 65 | if ( !wxThread::IsMain() ) |
| 66 | { |
| 67 | // can't process events from other threads, MGL is thread-unsafe |
| 68 | return true; |
| 69 | } |
| 70 | #endif // wxUSE_THREADS |
| 71 | |
| 72 | gs_inYield = true; |
| 73 | |
| 74 | wxLog::Suspend(); |
| 75 | |
| 76 | if ( wxEventLoop::GetActive() ) |
| 77 | { |
| 78 | while (wxEventLoop::GetActive()->Pending()) |
| 79 | wxEventLoop::GetActive()->Dispatch(); |
| 80 | } |
| 81 | |
| 82 | /* it's necessary to call ProcessIdle() to update the frames sizes which |
| 83 | might have been changed (it also will update other things set from |
| 84 | OnUpdateUI() which is a nice (and desired) side effect) */ |
| 85 | while (wxTheApp->ProcessIdle()) { } |
| 86 | |
| 87 | wxLog::Resume(); |
| 88 | |
| 89 | gs_inYield = false; |
| 90 | |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | |
| 95 | //----------------------------------------------------------------------------- |
| 96 | // wxWakeUpIdle |
| 97 | //----------------------------------------------------------------------------- |
| 98 | |
| 99 | void wxApp::WakeUpIdle() |
| 100 | { |
| 101 | #if wxUSE_THREADS |
| 102 | if (!wxThread::IsMain()) |
| 103 | wxMutexGuiEnter(); |
| 104 | #endif |
| 105 | |
| 106 | while (wxTheApp->ProcessIdle()) |
| 107 | ; |
| 108 | |
| 109 | #if wxUSE_THREADS |
| 110 | if (!wxThread::IsMain()) |
| 111 | wxMutexGuiLeave(); |
| 112 | #endif |
| 113 | } |
| 114 | |
| 115 | //----------------------------------------------------------------------------- |
| 116 | // Root window |
| 117 | //----------------------------------------------------------------------------- |
| 118 | |
| 119 | class wxRootWindow : public wxWindow |
| 120 | { |
| 121 | public: |
| 122 | wxRootWindow() : wxWindow(NULL, wxID_ANY) |
| 123 | { |
| 124 | SetMGLwindow_t(MGL_wmGetRootWindow(g_winMng)); |
| 125 | SetBackgroundColour(wxTHEME_COLOUR(DESKTOP)); |
| 126 | } |
| 127 | ~wxRootWindow() |
| 128 | { |
| 129 | // we don't want to delete MGL_WM's rootWnd |
| 130 | m_wnd = NULL; |
| 131 | } |
| 132 | |
| 133 | virtual bool AcceptsFocus() const { return false; } |
| 134 | |
| 135 | DECLARE_DYNAMIC_CLASS(wxRootWindow) |
| 136 | }; |
| 137 | |
| 138 | IMPLEMENT_DYNAMIC_CLASS(wxRootWindow, wxWindow) |
| 139 | |
| 140 | static wxRootWindow *gs_rootWindow = NULL; |
| 141 | |
| 142 | //----------------------------------------------------------------------------- |
| 143 | // MGL initialization |
| 144 | //----------------------------------------------------------------------------- |
| 145 | |
| 146 | static bool wxCreateMGL_WM(const wxVideoMode& displayMode) |
| 147 | { |
| 148 | int mode; |
| 149 | int refresh = MGL_DEFAULT_REFRESH; |
| 150 | |
| 151 | #if wxUSE_SYSTEM_OPTIONS |
| 152 | if ( wxSystemOptions::HasOption(wxT("mgl.screen-refresh")) ) |
| 153 | refresh = wxSystemOptions::GetOptionInt(wxT("mgl.screen-refresh")); |
| 154 | #endif |
| 155 | |
| 156 | mode = MGL_findMode(displayMode.GetWidth(), |
| 157 | displayMode.GetHeight(), |
| 158 | displayMode.GetDepth()); |
| 159 | if ( mode == -1 ) |
| 160 | { |
| 161 | wxLogError(_("Mode %ix%i-%i not available."), |
| 162 | displayMode.GetWidth(), |
| 163 | displayMode.GetHeight(), |
| 164 | displayMode.GetDepth()); |
| 165 | return false; |
| 166 | } |
| 167 | g_displayDC = new MGLDisplayDC(mode, 1, refresh); |
| 168 | if ( !g_displayDC->isValid() ) |
| 169 | { |
| 170 | delete g_displayDC; |
| 171 | g_displayDC = NULL; |
| 172 | return false; |
| 173 | } |
| 174 | |
| 175 | g_winMng = MGL_wmCreate(g_displayDC->getDC()); |
| 176 | if (!g_winMng) |
| 177 | return false; |
| 178 | |
| 179 | return true; |
| 180 | } |
| 181 | |
| 182 | static void wxDestroyMGL_WM() |
| 183 | { |
| 184 | if ( g_winMng ) |
| 185 | { |
| 186 | MGL_wmDestroy(g_winMng); |
| 187 | g_winMng = NULL; |
| 188 | } |
| 189 | if ( g_displayDC ) |
| 190 | { |
| 191 | delete g_displayDC; |
| 192 | g_displayDC = NULL; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | //----------------------------------------------------------------------------- |
| 197 | // wxApp |
| 198 | //----------------------------------------------------------------------------- |
| 199 | |
| 200 | IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) |
| 201 | |
| 202 | BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) |
| 203 | EVT_IDLE(wxAppBase::OnIdle) |
| 204 | END_EVENT_TABLE() |
| 205 | |
| 206 | |
| 207 | wxApp::wxApp() |
| 208 | { |
| 209 | } |
| 210 | |
| 211 | wxApp::~wxApp() |
| 212 | { |
| 213 | } |
| 214 | |
| 215 | wxVideoMode wxGetDefaultDisplayMode() |
| 216 | { |
| 217 | wxString mode; |
| 218 | unsigned w, h, bpp; |
| 219 | |
| 220 | if ( !wxGetEnv(wxT("WXMODE"), &mode) || |
| 221 | (wxSscanf(mode.c_str(), _T("%ux%u-%u"), &w, &h, &bpp) != 3) ) |
| 222 | { |
| 223 | w = 640, h = 480, bpp = 16; |
| 224 | } |
| 225 | |
| 226 | return wxVideoMode(w, h, bpp); |
| 227 | } |
| 228 | |
| 229 | bool wxApp::SetDisplayMode(const wxVideoMode& mode) |
| 230 | { |
| 231 | if ( !mode.IsOk() ) |
| 232 | { |
| 233 | return false; |
| 234 | } |
| 235 | if ( g_displayDC != NULL ) |
| 236 | { |
| 237 | // FIXME_MGL -- we currently don't allow to switch video mode |
| 238 | // more than once. This can hopefully be changed... |
| 239 | wxFAIL_MSG(wxT("Can't change display mode after intialization!")); |
| 240 | return false; |
| 241 | } |
| 242 | |
| 243 | if ( !wxCreateMGL_WM(mode) ) |
| 244 | return false; |
| 245 | gs_rootWindow = new wxRootWindow; |
| 246 | |
| 247 | m_displayMode = mode; |
| 248 | |
| 249 | return true; |
| 250 | } |
| 251 | |
| 252 | bool wxApp::OnInitGui() |
| 253 | { |
| 254 | if ( !wxAppBase::OnInitGui() ) |
| 255 | return false; |
| 256 | |
| 257 | #ifdef __WXDEBUG__ |
| 258 | // MGL redirects stdout and stderr to physical console, so lets redirect |
| 259 | // it to file in debug build. Do it only when WXSTDERR environment variable is set |
| 260 | wxString redirect; |
| 261 | if ( wxGetEnv(wxT("WXSTDERR"), &redirect) ) |
| 262 | freopen(redirect.mb_str(), "wt", stderr); |
| 263 | #endif // __WXDEBUG__ |
| 264 | |
| 265 | wxLog *oldLog = wxLog::SetActiveTarget(new wxLogGui); |
| 266 | if ( oldLog ) delete oldLog; |
| 267 | |
| 268 | return true; |
| 269 | } |
| 270 | |
| 271 | bool wxApp::Initialize(int& argc, wxChar **argv) |
| 272 | { |
| 273 | #ifdef __DJGPP__ |
| 274 | // VS: disable long filenames under DJGPP as the very first thing, |
| 275 | // since SciTech MGL doesn't like them much... |
| 276 | wxSetEnv(wxT("LFN"), wxT("N")); |
| 277 | #endif |
| 278 | |
| 279 | // intialize MGL before creating wxFontsManager since it uses MGL funcs |
| 280 | if ( MGL_init(".", NULL) == 0 ) |
| 281 | { |
| 282 | wxLogError(_("Cannot initialize SciTech MGL!")); |
| 283 | return false; |
| 284 | } |
| 285 | |
| 286 | // must do it before calling wxAppBase::Initialize(), because fonts are |
| 287 | // needed by stock lists which are created there |
| 288 | wxTheFontsManager = new wxFontsManager; |
| 289 | |
| 290 | if ( !wxAppBase::Initialize(argc, argv) ) |
| 291 | { |
| 292 | delete wxTheFontsManager; |
| 293 | wxTheFontsManager = NULL; |
| 294 | MGL_exit(); |
| 295 | return false; |
| 296 | } |
| 297 | |
| 298 | #if wxUSE_INTL |
| 299 | wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); |
| 300 | #endif |
| 301 | |
| 302 | return true; |
| 303 | } |
| 304 | |
| 305 | // Modules are cleaned up after wxApp::CleanUp(), and some modules may |
| 306 | // require MGL to still be alive, e.g. the stock fonts need the fonts |
| 307 | // manager. So append this module last minute in wxApp::CleanUp() to close |
| 308 | // down MGL after all the other modules have been cleaned up. |
| 309 | // |
| 310 | struct wxMGLFinalCleanup: public wxModule |
| 311 | { |
| 312 | bool OnInit() { return true; } |
| 313 | |
| 314 | void OnExit() |
| 315 | { |
| 316 | delete wxTheFontsManager; |
| 317 | wxTheFontsManager = (wxFontsManager*) NULL; |
| 318 | |
| 319 | wxDestroyMGL_WM(); |
| 320 | MGL_exit(); |
| 321 | } |
| 322 | }; |
| 323 | |
| 324 | void wxApp::CleanUp() |
| 325 | { |
| 326 | delete gs_rootWindow; |
| 327 | |
| 328 | wxAppBase::CleanUp(); |
| 329 | |
| 330 | wxModule::RegisterModule(new wxMGLFinalCleanup); |
| 331 | } |