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Remove support for Qt < 4.2

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21624 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Abdelrazak Younes 2007-11-15 12:51:03 +00:00
parent a5449f2b7d
commit 55217e352c
2 changed files with 0 additions and 55 deletions
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51
src/support/qstring_helpers.cpp
View File

@ -21,61 +21,10 @@ namespace lyx {
using std::string;
#if QT_VERSION < 0x040200
// We use QString::fromUcs4 in Qt 4.2 and higher
QString const toqstr(docstring const & str)
{
QString s;
int i = static_cast<int>(str.size());
s.resize(i);
for (; --i >= 0;) {
char_type const c = str[i];
if (is_utf16(c))
// Use a simple cast in the common case for speed
// reasons
s[i] = static_cast<unsigned short>(c);
else {
// A simple cast is not possible, so we need to use
// the full blown conversion.
std::vector<unsigned short> const utf16 =
ucs4_to_utf16(str.data(), str.size());
// Enable the compiler to do NRVO
s = QString::fromUtf16(&utf16[0], utf16.size());
break;
}
}
return s;
}
#endif
docstring const qstring_to_ucs4(QString const & qstr)
{
#if QT_VERSION >= 0x040200
QVector<uint> const ucs4 = qstr.toUcs4();
return docstring(ucs4.begin(), ucs4.end());
#else
int const ls = qstr.size();
docstring ucs4;
for (int i = 0; i < ls; ++i) {
char_type const c = static_cast<char_type>(qstr[i].unicode());
if (is_utf16(c))
// Use a simple cast in the common case for speed
// reasons
ucs4 += c;
else {
// A simple cast is not possible, so we need to use
// the full blown conversion.
std::vector<char_type> const v = utf16_to_ucs4(
reinterpret_cast<unsigned short const *>(qstr.utf16()),
qstr.size());
// Enable the compiler to do NRVO
ucs4 = docstring(v.begin(), v.end());
break;
}
}
return ucs4;
#endif
}

4
src/support/qstring_helpers.h
View File

@ -56,16 +56,12 @@ inline bool is_utf16(char_type c)
* This is the preferred method of converting anything that possibly
* contains non-ASCII stuff to QString.
*/
#if QT_VERSION >= 0x040200
inline QString const toqstr(docstring const & ucs4)
{
// If possible we let qt do the work, since this version does not
// need to be superfast.
return QString::fromUcs4(reinterpret_cast<uint const *>(ucs4.data()), ucs4.length());
}
#else
QString const toqstr(docstring const & ucs4);
#endif
/**