Amebis/wxWidgets
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try to deal more gracefully (than simply not showing anything at all) with invalid UTF-8 strings (e.g. ISO-8859-1 strings inserted in controls with default (UTF-8) font

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40800 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2006-08-24 17:50:10 +00:00
parent a6e8c584db
commit 27dee9ae02
2 changed files with 39 additions and 14 deletions
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4
src/gtk/textctrl.cpp
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@@ -846,7 +846,9 @@ void wxTextCtrl::SetValue( const wxString &value )
const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
if ( !buffer )
{
// what else can we do? at least don't crash...
// see comment in WriteText() as to why we must warn the user about
// this
wxLogWarning(_("Failed to set text in the text control."));
return;
}

49
src/gtk/utilsgtk.cpp
View File

@@ -172,25 +172,48 @@ wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
wxCharBuffer wxConvertToGTK(const wxString& s, wxFontEncoding enc)
{
wxCharBuffer buf;
if ( enc == wxFONTENCODING_UTF8 )
{
// no need for conversion at all
return wxCharBuffer(s);
}
// 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()"));
wxWCharBuffer wbuf;
if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT )
{
wbuf = wxConvUI->cMB2WC(s);
// 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);
}
}
else // another encoding, use generic conversion class
else // !UTF-8
{
wbuf = wxCSConv(enc).cMB2WC(s);
}
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);
}
wxCharBuffer buf;
if ( wbuf )
buf = wxConvUTF8.cWC2MB(wbuf);
if ( wbuf )
buf = wxConvUTF8.cWC2MB(wbuf);
}
return buf;
}