Remove non-copyable idioms

[lyx.git] / src / support / qstring_helpers.cpp

diff --git a/src/support/qstring_helpers.cpp b/src/support/qstring_helpers.cpp
index 27b740e6cac354a2e1261dfcdc666b158880b17d..4f63167b4305f665e9cb04403b346a94054a73ee 100644 (file)
--- a/src/support/qstring_helpers.cpp
+++ b/src/support/qstring_helpers.cpp
@@ -1,36 +1,70 @@
 /**
- * \file qstring_helpers.cpp
+ * \file qstring_helper.cpp
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
  * \author Dekel Tsur
- * \author Jürgen Spitzmüller
  *
  * Full author contact details are available in file CREDITS.
+ *
+ * A collection of unicode conversion functions, using iconv.
  */
 
 #include <config.h>
 
-#include "qstring_helpers.h"
-#include "unicode.h"
+#include "support/qstring_helpers.h"
 
-#include <QVector>
+#include "support/debug.h"
+#include "support/docstring.h"
 
+#include <QString>
+#include <QVector>
 
 namespace lyx {
 
-using std::string;
+LyXErr & operator<<(LyXErr & err, QString const & str)
+{
+       return err << fromqstr(str);
+}
+
 
-docstring const qstring_to_ucs4(QString const & qstr)
+QString toqstr(char const * str)
 {
-       QVector<uint> const ucs4 = qstr.toUcs4();
-       return docstring(ucs4.begin(), ucs4.end());
+       return QString::fromUtf8(str);
+}
+
+QString toqstr(std::string const & str)
+{
+       return toqstr(str.c_str());
 }
 
 
-string const fromqstr(QString const & str)
+QString toqstr(docstring const & ucs4)
+{
+       // If possible we let qt do the work, since this version does not
+       // need to be superfast.
+       if (ucs4.empty())
+               return QString();
+       return QString::fromUcs4((uint const *)ucs4.data(), ucs4.length());
+}
+
+QString toqstr(char_type ucs4)
+{
+       union { char_type c; uint i; } u = { ucs4 };
+       return QString::fromUcs4(&u.i, 1);
+}
+
+docstring qstring_to_ucs4(QString const & qstr)
+{
+       if (qstr.isEmpty())
+               return docstring();
+       QVector<uint> const ucs4 = qstr.toUcs4();
+       return docstring((char_type const *)(ucs4.constData()), ucs4.size());
+}
+
+std::string fromqstr(QString const & str)
 {
-       return str.isEmpty() ? string() : string(str.toUtf8());
+       return str.isEmpty() ? std::string() : std::string(str.toUtf8());
 }
 
 } // namespace lyx