| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk/utilsgtk.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // For compilers that support precompilation, includes "wx.h". |
| 11 | #include "wx/wxprec.h" |
| 12 | |
| 13 | #include "wx/utils.h" |
| 14 | |
| 15 | #ifndef WX_PRECOMP |
| 16 | #include "wx/string.h" |
| 17 | #include "wx/intl.h" |
| 18 | #include "wx/log.h" |
| 19 | #endif |
| 20 | |
| 21 | #include "wx/apptrait.h" |
| 22 | #include "wx/process.h" |
| 23 | #include "wx/sysopt.h" |
| 24 | #ifdef __UNIX__ |
| 25 | #include "wx/unix/execute.h" |
| 26 | #endif |
| 27 | |
| 28 | #include "wx/gtk/private/timer.h" |
| 29 | #include "wx/evtloop.h" |
| 30 | |
| 31 | #include <gtk/gtk.h> |
| 32 | #ifdef GDK_WINDOWING_WIN32 |
| 33 | #include <gdk/gdkwin32.h> |
| 34 | #endif |
| 35 | #ifdef GDK_WINDOWING_X11 |
| 36 | #include <gdk/gdkx.h> |
| 37 | #endif |
| 38 | |
| 39 | #if wxDEBUG_LEVEL |
| 40 | #include "wx/gtk/assertdlg_gtk.h" |
| 41 | #if wxUSE_STACKWALKER |
| 42 | #include "wx/stackwalk.h" |
| 43 | #endif // wxUSE_STACKWALKER |
| 44 | #endif // wxDEBUG_LEVEL |
| 45 | |
| 46 | #include <stdarg.h> |
| 47 | #include <string.h> |
| 48 | #include <sys/stat.h> |
| 49 | #include <sys/types.h> |
| 50 | #ifdef __UNIX__ |
| 51 | #include <unistd.h> |
| 52 | #endif |
| 53 | |
| 54 | #if wxUSE_DETECT_SM |
| 55 | #include <X11/SM/SMlib.h> |
| 56 | |
| 57 | #include "wx/unix/utilsx11.h" |
| 58 | #endif |
| 59 | |
| 60 | #include "wx/gtk/private/gtk2-compat.h" |
| 61 | |
| 62 | //----------------------------------------------------------------------------- |
| 63 | // data |
| 64 | //----------------------------------------------------------------------------- |
| 65 | |
| 66 | extern GtkWidget *wxGetRootWindow(); |
| 67 | |
| 68 | //---------------------------------------------------------------------------- |
| 69 | // misc. |
| 70 | //---------------------------------------------------------------------------- |
| 71 | |
| 72 | void wxBell() |
| 73 | { |
| 74 | gdk_beep(); |
| 75 | } |
| 76 | |
| 77 | // ---------------------------------------------------------------------------- |
| 78 | // display characteristics |
| 79 | // ---------------------------------------------------------------------------- |
| 80 | |
| 81 | #ifdef GDK_WINDOWING_X11 |
| 82 | void *wxGetDisplay() |
| 83 | { |
| 84 | return GDK_DISPLAY_XDISPLAY(gtk_widget_get_display(wxGetRootWindow())); |
| 85 | } |
| 86 | #endif |
| 87 | |
| 88 | void wxDisplaySize( int *width, int *height ) |
| 89 | { |
| 90 | if (width) *width = gdk_screen_width(); |
| 91 | if (height) *height = gdk_screen_height(); |
| 92 | } |
| 93 | |
| 94 | void wxDisplaySizeMM( int *width, int *height ) |
| 95 | { |
| 96 | if (width) *width = gdk_screen_width_mm(); |
| 97 | if (height) *height = gdk_screen_height_mm(); |
| 98 | } |
| 99 | |
| 100 | void wxGetMousePosition( int* x, int* y ) |
| 101 | { |
| 102 | gdk_window_get_pointer(gtk_widget_get_root_window(wxGetRootWindow()), x, y, NULL); |
| 103 | } |
| 104 | |
| 105 | bool wxColourDisplay() |
| 106 | { |
| 107 | return true; |
| 108 | } |
| 109 | |
| 110 | int wxDisplayDepth() |
| 111 | { |
| 112 | return gdk_visual_get_depth(gtk_widget_get_visual(wxGetRootWindow())); |
| 113 | } |
| 114 | |
| 115 | wxWindow* wxFindWindowAtPoint(const wxPoint& pt) |
| 116 | { |
| 117 | return wxGenericFindWindowAtPoint(pt); |
| 118 | } |
| 119 | |
| 120 | #if !wxUSE_UNICODE |
| 121 | |
| 122 | WXDLLIMPEXP_CORE wxCharBuffer |
| 123 | wxConvertToGTK(const wxString& s, wxFontEncoding enc) |
| 124 | { |
| 125 | wxWCharBuffer wbuf; |
| 126 | if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) |
| 127 | { |
| 128 | wbuf = wxConvUI->cMB2WC(s); |
| 129 | } |
| 130 | else // another encoding, use generic conversion class |
| 131 | { |
| 132 | wbuf = wxCSConv(enc).cMB2WC(s.c_str()); |
| 133 | } |
| 134 | |
| 135 | if ( !wbuf && !s.empty() ) |
| 136 | { |
| 137 | // conversion failed, but we still want to show something to the user |
| 138 | // even if it's going to be wrong it is better than nothing |
| 139 | // |
| 140 | // we choose ISO8859-1 here arbitrarily, it's just the most common |
| 141 | // encoding probably and, also importantly here, conversion from it |
| 142 | // never fails as it's done internally by wxCSConv |
| 143 | wbuf = wxCSConv(wxFONTENCODING_ISO8859_1).cMB2WC(s.c_str()); |
| 144 | } |
| 145 | |
| 146 | return wxConvUTF8.cWC2MB(wbuf); |
| 147 | } |
| 148 | |
| 149 | WXDLLIMPEXP_CORE wxCharBuffer |
| 150 | wxConvertFromGTK(const wxString& s, wxFontEncoding enc) |
| 151 | { |
| 152 | // this conversion should never fail as GTK+ always uses UTF-8 internally |
| 153 | // so there are no complications here |
| 154 | const wxWCharBuffer wbuf(wxConvUTF8.cMB2WC(s.c_str())); |
| 155 | if ( enc == wxFONTENCODING_SYSTEM ) |
| 156 | return wxConvUI->cWC2MB(wbuf); |
| 157 | |
| 158 | return wxCSConv(enc).cWC2MB(wbuf); |
| 159 | } |
| 160 | |
| 161 | #endif // !wxUSE_UNICODE |
| 162 | |
| 163 | // Returns NULL if version is certainly greater or equal than major.minor.micro |
| 164 | // Returns string describing the error if version is lower than |
| 165 | // major.minor.micro OR it cannot be determined and one should not rely on the |
| 166 | // availability of pango version major.minor.micro, nor the non-availability |
| 167 | const gchar *wx_pango_version_check (int major, int minor, int micro) |
| 168 | { |
| 169 | // NOTE: you don't need to use this macro to check for Pango features |
| 170 | // added in pango-1.4 or earlier since GTK 2.4 (our minimum requirement |
| 171 | // for GTK lib) required pango 1.4... |
| 172 | |
| 173 | #ifdef __WXGTK3__ |
| 174 | return pango_version_check(major, minor, micro); |
| 175 | #elif defined(PANGO_VERSION_MAJOR) |
| 176 | if (!gtk_check_version (2,11,0)) |
| 177 | { |
| 178 | // GTK+ 2.11 requires Pango >= 1.15.3 and pango_version_check |
| 179 | // was added in Pango 1.15.2 thus we know for sure the pango lib we're |
| 180 | // using has the pango_version_check function: |
| 181 | return pango_version_check (major, minor, micro); |
| 182 | } |
| 183 | |
| 184 | return "can't check"; |
| 185 | #else // !PANGO_VERSION_MAJOR |
| 186 | wxUnusedVar(major); |
| 187 | wxUnusedVar(minor); |
| 188 | wxUnusedVar(micro); |
| 189 | |
| 190 | return "too old headers"; |
| 191 | #endif |
| 192 | } |
| 193 | |
| 194 | // ---------------------------------------------------------------------------- |
| 195 | // subprocess routines |
| 196 | // ---------------------------------------------------------------------------- |
| 197 | |
| 198 | #ifdef __UNIX__ |
| 199 | |
| 200 | extern "C" { |
| 201 | static gboolean EndProcessDetector(GIOChannel* source, GIOCondition, void* data) |
| 202 | { |
| 203 | wxEndProcessData * const |
| 204 | proc_data = static_cast<wxEndProcessData *>(data); |
| 205 | |
| 206 | // child exited, end waiting |
| 207 | close(g_io_channel_unix_get_fd(source)); |
| 208 | |
| 209 | wxHandleProcessTermination(proc_data); |
| 210 | |
| 211 | // don't call us again! |
| 212 | return false; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | int wxGUIAppTraits::AddProcessCallback(wxEndProcessData *proc_data, int fd) |
| 217 | { |
| 218 | GIOChannel* channel = g_io_channel_unix_new(fd); |
| 219 | GIOCondition cond = GIOCondition(G_IO_IN | G_IO_HUP | G_IO_ERR); |
| 220 | unsigned id = g_io_add_watch(channel, cond, EndProcessDetector, proc_data); |
| 221 | g_io_channel_unref(channel); |
| 222 | return int(id); |
| 223 | } |
| 224 | |
| 225 | #endif // __UNIX__ |
| 226 | |
| 227 | // ---------------------------------------------------------------------------- |
| 228 | // wxPlatformInfo-related |
| 229 | // ---------------------------------------------------------------------------- |
| 230 | |
| 231 | wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const |
| 232 | { |
| 233 | if ( verMaj ) |
| 234 | *verMaj = gtk_major_version; |
| 235 | if ( verMin ) |
| 236 | *verMin = gtk_minor_version; |
| 237 | |
| 238 | return wxPORT_GTK; |
| 239 | } |
| 240 | |
| 241 | #if wxUSE_TIMER |
| 242 | |
| 243 | wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) |
| 244 | { |
| 245 | return new wxGTKTimerImpl(timer); |
| 246 | } |
| 247 | |
| 248 | #endif // wxUSE_TIMER |
| 249 | |
| 250 | #if wxUSE_DETECT_SM |
| 251 | static wxString GetSM() |
| 252 | { |
| 253 | wxX11Display dpy; |
| 254 | if ( !dpy ) |
| 255 | return wxEmptyString; |
| 256 | |
| 257 | char smerr[256]; |
| 258 | char *client_id; |
| 259 | SmcConn smc_conn = SmcOpenConnection(NULL, NULL, |
| 260 | 999, 999, |
| 261 | 0 /* mask */, NULL /* callbacks */, |
| 262 | NULL, &client_id, |
| 263 | WXSIZEOF(smerr), smerr); |
| 264 | |
| 265 | if ( !smc_conn ) |
| 266 | { |
| 267 | wxLogDebug("Failed to connect to session manager: %s", smerr); |
| 268 | return wxEmptyString; |
| 269 | } |
| 270 | |
| 271 | char *vendor = SmcVendor(smc_conn); |
| 272 | wxString ret = wxString::FromAscii( vendor ); |
| 273 | free(vendor); |
| 274 | |
| 275 | SmcCloseConnection(smc_conn, 0, NULL); |
| 276 | free(client_id); |
| 277 | |
| 278 | return ret; |
| 279 | } |
| 280 | #endif // wxUSE_DETECT_SM |
| 281 | |
| 282 | |
| 283 | //----------------------------------------------------------------------------- |
| 284 | // wxGUIAppTraits |
| 285 | //----------------------------------------------------------------------------- |
| 286 | |
| 287 | wxEventLoopBase *wxGUIAppTraits::CreateEventLoop() |
| 288 | { |
| 289 | return new wxEventLoop(); |
| 290 | } |
| 291 | |
| 292 | |
| 293 | #if wxUSE_INTL && defined(__UNIX__) |
| 294 | void wxGUIAppTraits::SetLocale() |
| 295 | { |
| 296 | #ifdef __WXGTK3__ |
| 297 | setlocale(LC_ALL, ""); |
| 298 | #else |
| 299 | gtk_set_locale(); |
| 300 | #endif |
| 301 | wxUpdateLocaleIsUtf8(); |
| 302 | } |
| 303 | #endif |
| 304 | |
| 305 | #ifdef __UNIX__ |
| 306 | |
| 307 | #if wxDEBUG_LEVEL && wxUSE_STACKWALKER |
| 308 | |
| 309 | // private helper class |
| 310 | class StackDump : public wxStackWalker |
| 311 | { |
| 312 | public: |
| 313 | StackDump(GtkAssertDialog *dlg) { m_dlg=dlg; } |
| 314 | |
| 315 | protected: |
| 316 | virtual void OnStackFrame(const wxStackFrame& frame) |
| 317 | { |
| 318 | wxString fncname = frame.GetName(); |
| 319 | |
| 320 | // append this stack frame's info in the dialog |
| 321 | if (!frame.GetFileName().empty() || !fncname.empty()) |
| 322 | gtk_assert_dialog_append_stack_frame(m_dlg, |
| 323 | fncname.mb_str(), |
| 324 | frame.GetFileName().mb_str(), |
| 325 | frame.GetLine()); |
| 326 | } |
| 327 | |
| 328 | private: |
| 329 | GtkAssertDialog *m_dlg; |
| 330 | }; |
| 331 | |
| 332 | static void get_stackframe_callback(void* p) |
| 333 | { |
| 334 | StackDump* dump = static_cast<StackDump*>(p); |
| 335 | // skip over frames up to including wxOnAssert() |
| 336 | dump->ProcessFrames(3); |
| 337 | } |
| 338 | |
| 339 | #endif // wxDEBUG_LEVEL && wxUSE_STACKWALKER |
| 340 | |
| 341 | bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg) |
| 342 | { |
| 343 | #if wxDEBUG_LEVEL |
| 344 | // we can't show the dialog from another thread |
| 345 | if ( wxIsMainThread() ) |
| 346 | { |
| 347 | // under GTK2 we prefer to use a dialog widget written using directly |
| 348 | // in GTK+ as use a dialog written using wxWidgets would need the |
| 349 | // wxWidgets idle processing to work correctly which might not be the |
| 350 | // case when assert happens |
| 351 | GtkWidget *dialog = gtk_assert_dialog_new(); |
| 352 | gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str()); |
| 353 | |
| 354 | #if wxUSE_STACKWALKER |
| 355 | // save the current stack ow... |
| 356 | StackDump dump(GTK_ASSERT_DIALOG(dialog)); |
| 357 | dump.SaveStack(100); // showing more than 100 frames is not very useful |
| 358 | |
| 359 | // ...but process it only if the user needs it |
| 360 | gtk_assert_dialog_set_backtrace_callback |
| 361 | ( |
| 362 | GTK_ASSERT_DIALOG(dialog), |
| 363 | get_stackframe_callback, |
| 364 | &dump |
| 365 | ); |
| 366 | #endif // wxUSE_STACKWALKER |
| 367 | |
| 368 | gint result = gtk_dialog_run(GTK_DIALOG (dialog)); |
| 369 | bool returnCode = false; |
| 370 | switch (result) |
| 371 | { |
| 372 | case GTK_ASSERT_DIALOG_STOP: |
| 373 | wxTrap(); |
| 374 | break; |
| 375 | case GTK_ASSERT_DIALOG_CONTINUE: |
| 376 | // nothing to do |
| 377 | break; |
| 378 | case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING: |
| 379 | // no more asserts |
| 380 | returnCode = true; |
| 381 | break; |
| 382 | |
| 383 | default: |
| 384 | wxFAIL_MSG( wxT("unexpected return code from GtkAssertDialog") ); |
| 385 | } |
| 386 | |
| 387 | gtk_widget_destroy(dialog); |
| 388 | return returnCode; |
| 389 | } |
| 390 | #endif // wxDEBUG_LEVEL |
| 391 | |
| 392 | return wxAppTraitsBase::ShowAssertDialog(msg); |
| 393 | } |
| 394 | |
| 395 | #endif // __UNIX__ |
| 396 | |
| 397 | #if defined(__UNIX__) || defined(__OS2__) |
| 398 | |
| 399 | wxString wxGUIAppTraits::GetDesktopEnvironment() const |
| 400 | { |
| 401 | wxString de = wxSystemOptions::GetOption(wxT("gtk.desktop")); |
| 402 | #if wxUSE_DETECT_SM |
| 403 | if ( de.empty() ) |
| 404 | { |
| 405 | static const wxString s_SM = GetSM(); |
| 406 | |
| 407 | if (s_SM == wxT("GnomeSM")) |
| 408 | de = wxT("GNOME"); |
| 409 | else if (s_SM == wxT("KDE")) |
| 410 | de = wxT("KDE"); |
| 411 | } |
| 412 | #endif // wxUSE_DETECT_SM |
| 413 | |
| 414 | return de; |
| 415 | } |
| 416 | |
| 417 | #endif // __UNIX__ || __OS2__ |
| 418 | |
| 419 | // see the hack below in wxCmdLineParser::GetUsageString(). |
| 420 | // TODO: replace this hack with a g_option_group_get_entries() |
| 421 | // call as soon as such function exists; |
| 422 | // see http://bugzilla.gnome.org/show_bug.cgi?id=431021 for the relative |
| 423 | // feature request |
| 424 | struct _GOptionGroup |
| 425 | { |
| 426 | gchar *name; |
| 427 | gchar *description; |
| 428 | gchar *help_description; |
| 429 | |
| 430 | GDestroyNotify destroy_notify; |
| 431 | gpointer user_data; |
| 432 | |
| 433 | GTranslateFunc translate_func; |
| 434 | GDestroyNotify translate_notify; |
| 435 | gpointer translate_data; |
| 436 | |
| 437 | GOptionEntry *entries; |
| 438 | gint n_entries; |
| 439 | |
| 440 | GOptionParseFunc pre_parse_func; |
| 441 | GOptionParseFunc post_parse_func; |
| 442 | GOptionErrorFunc error_func; |
| 443 | }; |
| 444 | |
| 445 | wxString wxGetNameFromGtkOptionEntry(const GOptionEntry *opt) |
| 446 | { |
| 447 | wxString ret; |
| 448 | |
| 449 | if (opt->short_name) |
| 450 | ret << wxT("-") << opt->short_name; |
| 451 | if (opt->long_name) |
| 452 | { |
| 453 | if (!ret.empty()) |
| 454 | ret << wxT(", "); |
| 455 | ret << wxT("--") << opt->long_name; |
| 456 | |
| 457 | if (opt->arg_description) |
| 458 | ret << wxT("=") << opt->arg_description; |
| 459 | } |
| 460 | |
| 461 | return wxT(" ") + ret; |
| 462 | } |
| 463 | |
| 464 | #ifdef __UNIX__ |
| 465 | |
| 466 | wxString |
| 467 | wxGUIAppTraits::GetStandardCmdLineOptions(wxArrayString& names, |
| 468 | wxArrayString& desc) const |
| 469 | { |
| 470 | wxString usage; |
| 471 | |
| 472 | // check whether GLib version is greater than 2.6 but also lower than 2.33 |
| 473 | // because, as we use the undocumented _GOptionGroup struct, we don't want |
| 474 | // to run this code with future versions which might change it (2.32 is the |
| 475 | // latest one at the time of this writing) |
| 476 | if (glib_check_version(2,33,0)) |
| 477 | { |
| 478 | usage << _("The following standard GTK+ options are also supported:\n"); |
| 479 | |
| 480 | // passing true here means that the function can open the default |
| 481 | // display while parsing (not really used here anyhow) |
| 482 | GOptionGroup *gtkOpts = gtk_get_option_group(true); |
| 483 | |
| 484 | // WARNING: here we access the internals of GOptionGroup: |
| 485 | GOptionEntry *entries = ((_GOptionGroup*)gtkOpts)->entries; |
| 486 | unsigned int n_entries = ((_GOptionGroup*)gtkOpts)->n_entries; |
| 487 | wxArrayString namesOptions, descOptions; |
| 488 | |
| 489 | for ( size_t n = 0; n < n_entries; n++ ) |
| 490 | { |
| 491 | if ( entries[n].flags & G_OPTION_FLAG_HIDDEN ) |
| 492 | continue; // skip |
| 493 | |
| 494 | names.push_back(wxGetNameFromGtkOptionEntry(&entries[n])); |
| 495 | |
| 496 | const gchar * const entryDesc = entries[n].description; |
| 497 | desc.push_back(wxString(entryDesc)); |
| 498 | } |
| 499 | |
| 500 | g_option_group_free (gtkOpts); |
| 501 | } |
| 502 | |
| 503 | return usage; |
| 504 | } |
| 505 | |
| 506 | #endif // __UNIX__ |