X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/27dee9ae02f0afc054fe7a90bc3d077df1d7914a..1748289348c4c7dcc467edbf7192ade8a1b78921:/src/gtk/utilsgtk.cpp diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp index ae645105e1..d3df80a878 100644 --- a/src/gtk/utilsgtk.cpp +++ b/src/gtk/utilsgtk.cpp @@ -24,6 +24,13 @@ #include "wx/unix/execute.h" +#ifdef __WXDEBUG__ + #include "wx/gtk/assertdlg_gtk.h" + #if wxUSE_STACKWALKER + #include "wx/stackwalk.h" + #endif // wxUSE_STACKWALKER +#endif // __WXDEBUG__ + #include #include #include @@ -47,6 +54,12 @@ #undef explicit #endif // HAVE_X11_XKBLIB_H + +#if wxUSE_DETECT_SM + #include "X11/Xlib.h" + #include "X11/SM/SMlib.h" +#endif + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- @@ -172,50 +185,39 @@ wxWindow* wxFindWindowAtPoint(const wxPoint& pt) wxCharBuffer wxConvertToGTK(const wxString& s, wxFontEncoding enc) { - wxCharBuffer buf; - if ( enc == wxFONTENCODING_UTF8 ) + wxWCharBuffer wbuf; + if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) { - // no need for conversion at all, but do check that we have a valid - // UTF-8 string because passing invalid UTF-8 to GTK+ is going to - // result in a GTK+ error message and, especially, loss of data which - // was supposed to be shown in the GUI - if ( wxConvUTF8.ToWChar(NULL, 0, s, s.length()) == wxCONV_FAILED ) - { - // warn the programmer that something is probably wrong in his code - // - // NB: don't include the string in output because chances are that - // this invalid UTF-8 string could result in more errors itself - // if the application shows logs in the GUI and so we get into - // an infinite loop - wxLogDebug(_T("Invalid UTF-8 string in wxConvertToGTK()")); - - // but still try to show at least something on the screen - wxMBConvUTF8 utf8permissive(wxMBConvUTF8::MAP_INVALID_UTF8_TO_OCTAL); - wxWCharBuffer wbuf(utf8permissive.cMB2WC(s)); - buf = wxConvUTF8.cWC2MB(wbuf); - } - else // valid UTF-8 string, no need to convert - { - buf = wxCharBuffer(s); - } + wbuf = wxConvUI->cMB2WC(s); } - else // !UTF-8 + else // another encoding, use generic conversion class { - wxWCharBuffer wbuf; - if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) - { - wbuf = wxConvUI->cMB2WC(s); - } - else // another encoding, use generic conversion class - { - wbuf = wxCSConv(enc).cMB2WC(s); - } + wbuf = wxCSConv(enc).cMB2WC(s); + } - if ( wbuf ) - buf = wxConvUTF8.cWC2MB(wbuf); + 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); } - return buf; + return wxConvUTF8.cWC2MB(wbuf); +} + +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)); + if ( enc == wxFONTENCODING_SYSTEM ) + return wxConvUI->cWC2MB(wbuf); + + return wxCSConv(enc).cWC2MB(wbuf); } #endif // !wxUSE_UNICODE @@ -283,3 +285,173 @@ wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const return wxPORT_GTK; } + +#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 *client_id; + SmcConn smc_conn = SmcOpenConnection(NULL, NULL, + 999, 999, + 0 /* mask */, NULL /* callbacks */, + NULL, &client_id, + 0, NULL); + + if ( !smc_conn ) + 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 +//----------------------------------------------------------------------------- + +#if wxUSE_INTL +void wxGUIAppTraits::SetLocale() +{ + gtk_set_locale(); +} +#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 +{ +#if wxUSE_DETECT_SM + const wxString SM = GetSM(); + + if (SM == wxT("GnomeSM")) + return wxT("GNOME"); + + if (SM == wxT("KDE")) + return wxT("KDE"); +#endif // wxUSE_DETECT_SM + + return wxEmptyString; +} + + +