X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/22a3bce465fa9180597544a1bef7b7024d40fc50..593354ca47abaae8a434f99642acc57f7834f77b:/src/gtk/utilsgtk.cpp diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp index 4b321c358f..e7b6208cec 100644 --- a/src/gtk/utilsgtk.cpp +++ b/src/gtk/utilsgtk.cpp @@ -11,16 +11,28 @@ #include "wx/wxprec.h" #include "wx/utils.h" -#include "wx/string.h" -#include "wx/apptrait.h" -#include "wx/intl.h" -#include "wx/log.h" +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/log.h" +#endif +#include "wx/apptrait.h" #include "wx/process.h" - +#include "wx/sysopt.h" #include "wx/unix/execute.h" +#include "wx/gtk/private/timer.h" +#include "wx/evtloop.h" + +#ifdef __WXDEBUG__ + #include "wx/gtk/assertdlg_gtk.h" + #if wxUSE_STACKWALKER + #include "wx/stackwalk.h" + #endif // wxUSE_STACKWALKER +#endif // __WXDEBUG__ + #include #include #include @@ -44,6 +56,12 @@ #undef explicit #endif // HAVE_X11_XKBLIB_H + +#if wxUSE_DETECT_SM + #include "X11/Xlib.h" + #include "X11/SM/SMlib.h" +#endif + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- @@ -69,50 +87,15 @@ bool wxSetDetectableAutoRepeat( bool flag ) { Bool result; XkbSetDetectableAutoRepeat( GDK_DISPLAY(), flag, &result ); - return result; /* TRUE if keyboard hardware supports this mode */ + return result; /* true if keyboard hardware supports this mode */ } #else bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) ) { - return FALSE; + return false; } #endif -// Escapes string so that it is valid Pango markup XML string: -wxString wxEscapeStringForPangoMarkup(const wxString& str) -{ - size_t len = str.length(); - wxString out; - out.Alloc(len); - for (size_t i = 0; i < len; i++) - { - wxChar c = str[i]; - switch (c) - { - case _T('&'): - out << _T("&"); - break; - case _T('<'): - out << _T("<"); - break; - case _T('>'): - out << _T(">"); - break; - case _T('\''): - out << _T("'"); - break; - case _T('"'): - out << _T("""); - break; - default: - out << c; - break; - } - } - return out; -} - - // ---------------------------------------------------------------------------- // display characterstics // ---------------------------------------------------------------------------- @@ -134,17 +117,6 @@ void wxDisplaySizeMM( int *width, int *height ) if (height) *height = gdk_screen_height_mm(); } -void wxClientDisplayRect(int *x, int *y, int *width, int *height) -{ - // This is supposed to return desktop dimensions minus any window - // manager panels, menus, taskbars, etc. If there is a way to do that - // for this platform please fix this function, otherwise it defaults - // to the entire desktop. - if (x) *x = 0; - if (y) *y = 0; - wxDisplaySize(width, height); -} - void wxGetMousePosition( int* x, int* y ) { gdk_window_get_pointer( (GdkWindow*) NULL, x, y, (GdkModifierType*) NULL ); @@ -152,7 +124,7 @@ void wxGetMousePosition( int* x, int* y ) bool wxColourDisplay() { - return TRUE; + return true; } int wxDisplayDepth() @@ -160,24 +132,77 @@ int wxDisplayDepth() return gdk_drawable_get_visual( wxGetRootWindow()->window )->depth; } -wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo() +wxWindow* wxFindWindowAtPoint(const wxPoint& pt) { - static wxToolkitInfo info; - info.shortName = _T("gtk2"); - info.name = _T("wxGTK"); -#ifdef __WXUNIVERSAL__ - info.shortName << _T("univ"); - info.name << _T("/wxUniversal"); -#endif - info.versionMajor = gtk_major_version; - info.versionMinor = gtk_minor_version; - info.os = wxGTK; - return info; + return wxGenericFindWindowAtPoint(pt); } -wxWindow* wxFindWindowAtPoint(const wxPoint& pt) +#if !wxUSE_UNICODE + +WXDLLIMPEXP_CORE wxCharBuffer +wxConvertToGTK(const wxString& s, wxFontEncoding enc) { - return wxGenericFindWindowAtPoint(pt); + wxWCharBuffer wbuf; + if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) + { + wbuf = wxConvUI->cMB2WC(s.c_str()); + } + else // another encoding, use generic conversion class + { + wbuf = wxCSConv(enc).cMB2WC(s.c_str()); + } + + if ( !wbuf && !s.empty() ) + { + // conversion failed, but we still want to show something to the user + // even if it's going to be wrong it is better than nothing + // + // we choose ISO8859-1 here arbitrarily, it's just the most common + // encoding probably and, also importantly here, conversion from it + // never fails as it's done internally by wxCSConv + wbuf = wxCSConv(wxFONTENCODING_ISO8859_1).cMB2WC(s.c_str()); + } + + return wxConvUTF8.cWC2MB(wbuf); +} + +WXDLLIMPEXP_CORE wxCharBuffer +wxConvertFromGTK(const wxString& s, wxFontEncoding enc) +{ + // this conversion should never fail as GTK+ always uses UTF-8 internally + // so there are no complications here + const wxWCharBuffer wbuf(wxConvUTF8.cMB2WC(s.c_str())); + if ( enc == wxFONTENCODING_SYSTEM ) + return wxConvUI->cWC2MB(wbuf); + + return wxCSConv(enc).cWC2MB(wbuf); +} + +#endif // !wxUSE_UNICODE + +// Returns NULL if version is certainly greater or equal than major.minor.micro +// Returns string describing the error if version is lower than +// major.minor.micro OR it cannot be determined and one should not rely on the +// availability of pango version major.minor.micro, nor the non-availability +const gchar *wx_pango_version_check (int major, int minor, int micro) +{ +#ifdef PANGO_VERSION_MAJOR + if (!gtk_check_version (2,11,0)) + { + // GTK+ 2.11 requires Pango >= 1.15.3 and pango_version_check + // was added in Pango 1.15.2 thus we know for sure the pango lib we're + // using has the pango_version_check function: + return pango_version_check (major, minor, micro); + } + + return "can't check"; +#else // !PANGO_VERSION_MAJOR + wxUnusedVar(major); + wxUnusedVar(minor); + wxUnusedVar(micro); + + return "too old headers"; +#endif } @@ -199,15 +224,27 @@ void GTK_EndProcessDetector(gpointer data, gint source, int status = 0; int rc = waitpid(pid, &status, WNOHANG); - if ( rc == 0 ) - { - // no, it didn't exit yet, continue waiting - return; - } + if ( rc == 0 ) + { + // This can only happen if the child application closes our dummy + // pipe that is used to monitor its lifetime; in that case, our + // best bet is to pretend the process did terminate, because + // otherwise wxExecute() would hang indefinitely + // (OnExceptionWaiting() won't be called again, the descriptor + // is closed now). + wxLogDebug("Child process (PID %i) still alive, even though notification was received that it terminated.", pid); + } + else if ( rc == -1 ) + { + // As above, if waitpid() fails, the best we can do is to log the + // error and pretend the child terminated: + wxLogSysError(_("Failed to check child process' status")); + } // set exit code to -1 if something bad happened - proc_data->exitcode = rc != -1 && WIFEXITED(status) ? WEXITSTATUS(status) - : -1; + proc_data->exitcode = (rc > 0 && WIFEXITED(status)) + ? WEXITSTATUS(status) + : -1; // child exited, end waiting close(source); @@ -229,3 +266,302 @@ int wxAddProcessCallback(wxEndProcessData *proc_data, int fd) return tag; } + + +// ---------------------------------------------------------------------------- +// wxPlatformInfo-related +// ---------------------------------------------------------------------------- + +wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const +{ + if ( verMaj ) + *verMaj = gtk_major_version; + if ( verMin ) + *verMin = gtk_minor_version; + + return wxPORT_GTK; +} + +#if wxUSE_TIMER + +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) +{ + return new wxGTKTimerImpl(timer); +} + +#endif // wxUSE_TIMER + +#if wxUSE_DETECT_SM +static wxString GetSM() +{ + class Dpy + { + public: + Dpy() { m_dpy = XOpenDisplay(NULL); } + ~Dpy() { if ( m_dpy ) XCloseDisplay(m_dpy); } + + operator Display *() const { return m_dpy; } + private: + Display *m_dpy; + } dpy; + + if ( !dpy ) + return wxEmptyString; + + char smerr[256]; + char *client_id; + SmcConn smc_conn = SmcOpenConnection(NULL, NULL, + 999, 999, + 0 /* mask */, NULL /* callbacks */, + NULL, &client_id, + WXSIZEOF(smerr), smerr); + + if ( !smc_conn ) + { + wxLogWarning(_("Failed to connect to session manager: %s"), smerr); + return wxEmptyString; + } + + char *vendor = SmcVendor(smc_conn); + wxString ret = wxString::FromAscii( vendor ); + free(vendor); + + SmcCloseConnection(smc_conn, 0, NULL); + free(client_id); + + return ret; +} +#endif // wxUSE_DETECT_SM + + +//----------------------------------------------------------------------------- +// wxGUIAppTraits +//----------------------------------------------------------------------------- + +wxEventLoopBase *wxGUIAppTraits::CreateEventLoop() +{ + return new wxEventLoop(); +} + + +#if wxUSE_INTL +void wxGUIAppTraits::SetLocale() +{ + gtk_set_locale(); + wxUpdateLocaleIsUtf8(); +} +#endif + +#ifdef __WXDEBUG__ + +#if wxUSE_STACKWALKER + +// private helper class +class StackDump : public wxStackWalker +{ +public: + StackDump(GtkAssertDialog *dlg) { m_dlg=dlg; } + +protected: + virtual void OnStackFrame(const wxStackFrame& frame) + { + wxString fncname = frame.GetName(); + wxString fncargs = fncname; + + size_t n = fncname.find(wxT('(')); + if (n != wxString::npos) + { + // remove arguments from function name + fncname.erase(n); + + // remove function name and brackets from arguments + fncargs = fncargs.substr(n+1, fncargs.length()-n-2); + } + else + fncargs = wxEmptyString; + + // append this stack frame's info in the dialog + if (!frame.GetFileName().empty() || !fncname.empty()) + gtk_assert_dialog_append_stack_frame(m_dlg, + fncname.mb_str(), + fncargs.mb_str(), + frame.GetFileName().mb_str(), + frame.GetLine()); + } + +private: + GtkAssertDialog *m_dlg; +}; + +// the callback functions must be extern "C" to comply with GTK+ declarations +extern "C" +{ + void get_stackframe_callback(StackDump *dump) + { + // skip over frames up to including wxOnAssert() + dump->ProcessFrames(3); + } +} + +#endif // wxUSE_STACKWALKER + +bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg) +{ + // under GTK2 we prefer to use a dialog widget written using directly GTK+; + // in fact we cannot use a dialog written using wxWidgets: it would need + // the wxWidgets idle processing to work correctly! + GtkWidget *dialog = gtk_assert_dialog_new(); + gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str()); + +#if wxUSE_STACKWALKER + // don't show more than maxLines or we could get a dialog too tall to be + // shown on screen: 20 should be ok everywhere as even with 15 pixel high + // characters it is still only 300 pixels... + static const int maxLines = 20; + + // save current stack frame... + StackDump dump(GTK_ASSERT_DIALOG(dialog)); + dump.SaveStack(maxLines); + + // ...but process it only if the user needs it + gtk_assert_dialog_set_backtrace_callback(GTK_ASSERT_DIALOG(dialog), + (GtkAssertDialogStackFrameCallback)get_stackframe_callback, + &dump); +#endif // wxUSE_STACKWALKER + + gint result = gtk_dialog_run(GTK_DIALOG (dialog)); + bool returnCode = false; + switch (result) + { + case GTK_ASSERT_DIALOG_STOP: + wxTrap(); + break; + case GTK_ASSERT_DIALOG_CONTINUE: + // nothing to do + break; + case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING: + // no more asserts + returnCode = true; + break; + + default: + wxFAIL_MSG( _T("unexpected return code from GtkAssertDialog") ); + } + + gtk_widget_destroy(dialog); + return returnCode; +} + +#endif // __WXDEBUG__ + +wxString wxGUIAppTraits::GetDesktopEnvironment() const +{ + wxString de = wxSystemOptions::GetOption(_T("gtk.desktop")); +#if wxUSE_DETECT_SM + if ( de.empty() ) + { + static const wxString s_SM = GetSM(); + + if (s_SM == wxT("GnomeSM")) + de = wxT("GNOME"); + else if (s_SM == wxT("KDE")) + de = wxT("KDE"); + } +#endif // wxUSE_DETECT_SM + + return de; +} + +#ifdef __WXGTK26__ + +// see the hack below in wxCmdLineParser::GetUsageString(). +// TODO: replace this hack with a g_option_group_get_entries() +// call as soon as such function exists +struct _GOptionGroup +{ + gchar *name; + gchar *description; + gchar *help_description; + + GDestroyNotify destroy_notify; + gpointer user_data; + + GTranslateFunc translate_func; + GDestroyNotify translate_notify; + gpointer translate_data; + + GOptionEntry *entries; + gint n_entries; + + GOptionParseFunc pre_parse_func; + GOptionParseFunc post_parse_func; + GOptionErrorFunc error_func; +}; + +wxString wxGetNameFromGtkOptionEntry(const GOptionEntry *opt) +{ + wxString ret; + + if (opt->short_name) + ret << _T("-") << opt->short_name; + if (opt->long_name) + { + if (!ret.empty()) + ret << _T(", "); + ret << _T("--") << opt->long_name; + + if (opt->arg_description) + ret << _T("=") << opt->arg_description; + } + + return _T(" ") + ret; +} + +#endif // __WXGTK26__ + +wxString +wxGUIAppTraits::GetStandardCmdLineOptions(wxArrayString& names, + wxArrayString& desc) const +{ + wxString usage; + +#ifdef __WXGTK26__ + // check whether GTK version is greater than 2.6 but also lower than 2.12 + // because, as we use the undocumented _GOptionGroup struct, we don't want + // to run this code with future versions which might change it (2.11 is the + // latest one at the time of this writing) + if (!gtk_check_version(2,6,0) && + gtk_check_version(2,12,0)) + { + usage << _("The following standard GTK+ options are also supported:\n"); + + // passing true here means that the function can open the default + // display while parsing (not really used here anyhow) + GOptionGroup *gtkOpts = gtk_get_option_group(true); + + // WARNING: here we access the internals of GOptionGroup: + GOptionEntry *entries = ((_GOptionGroup*)gtkOpts)->entries; + unsigned int n_entries = ((_GOptionGroup*)gtkOpts)->n_entries; + wxArrayString namesOptions, descOptions; + + for ( size_t n = 0; n < n_entries; n++ ) + { + if ( entries[n].flags & G_OPTION_FLAG_HIDDEN ) + continue; // skip + + names.push_back(wxGetNameFromGtkOptionEntry(&entries[n])); + + const gchar * const entryDesc = entries[n].description; + desc.push_back(wxString(entryDesc)); + } + + g_option_group_free (gtkOpts); + } +#else + wxUnusedVar(names); + wxUnusedVar(desc); +#endif // __WXGTK26__ + + return usage; +} +