#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 <stdarg.h>
#include <string.h>
#include <sys/stat.h>
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);
}
#endif // !wxUSE_UNICODE
#if wxUSE_DETECT_SM
static wxString GetSM()
{
- Display *dpy;
- SmcConn smc_conn;
- char *vendor;
- char *client_id_ret;
- dpy = XOpenDisplay(NULL);
-
- smc_conn = SmcOpenConnection(NULL, NULL,
- 999, 999,
- 0 /* mask */, NULL /* callbacks */,
- NULL, &client_id_ret, 0, NULL);
-
- vendor = SmcVendor(smc_conn);
+ 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);
+ free(vendor);
- SmcCloseConnection(smc_conn, 0, NULL);
- free(client_id_ret);
+ SmcCloseConnection(smc_conn, 0, NULL);
+ free(client_id);
- XCloseDisplay(dpy);
-
return ret;
}
-#endif
+#endif // wxUSE_DETECT_SM
+
+
+//-----------------------------------------------------------------------------
+// wxGUIAppTraits
+//-----------------------------------------------------------------------------
+
+#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
- wxString SM = GetSM();
-
+ const wxString SM = GetSM();
+
if (SM == wxT("GnomeSM"))
return wxT("GNOME");
-
+
if (SM == wxT("KDE"))
return wxT("KDE");
-#endif
+#endif // wxUSE_DETECT_SM
return wxEmptyString;
}
projects / wxWidgets.git / blobdiff