diff options
author | Milian Wolff <milian.wolff@kdab.com> | 2015-04-16 17:43:46 +0200 |
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committer | Konstantin Ritt <ritt.ks@gmail.com> | 2015-04-17 01:08:49 +0000 |
commit | 7f82b9258e702fcc1857814c585b1b89d9328006 (patch) | |
tree | 82b0b3e7fad781255552eb4ece06918324f6a66c /src/plugins/platforms/xcb/qxcbkeyboard.cpp | |
parent | a7303e45dbd1ac37048fb1a907edabe0158b2b52 (diff) |
Ensure the UTF-8 string for a xcb_keycode_t has the correct length.
On my platform (Archlinux, libxcb 1.11-1) and a recent build of Qt dev
I noticed that writing anything to a QLineEdit was broken, as not only
the character for the pressed key was inserted, but also what looks
like whitespace. A simple debug program showed that a "\u0000" is
appended to every character in the QString text associated with a
QKeyEvent, which brought me to QXcbKeyboard::lookupString.
The QByteArray to QString conversion using QString::fromUtf8 includes
the \x00 byte at the end of the buffer.
By leveraging the size returned by the xcb API and passing that to
QString::fromUtf8 we can prevent this problem from arising.
Change-Id: Ic1d4390e4154e9ed729cd23286811d6eecdf54f6
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbkeyboard.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbkeyboard.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.cpp b/src/plugins/platforms/xcb/qxcbkeyboard.cpp index 376599578f..3b356525e3 100644 --- a/src/plugins/platforms/xcb/qxcbkeyboard.cpp +++ b/src/plugins/platforms/xcb/qxcbkeyboard.cpp @@ -1518,8 +1518,8 @@ QString QXcbKeyboard::lookupString(struct xkb_state *state, xcb_keycode_t code) QByteArray chars; chars.resize(1 + xkb_state_key_get_utf8(state, code, 0, 0)); // equivalent of XLookupString - xkb_state_key_get_utf8(state, code, chars.data(), chars.size()); - return QString::fromUtf8(chars); + const int size = xkb_state_key_get_utf8(state, code, chars.data(), chars.size()); + return QString::fromUtf8(chars.constData(), size); } void QXcbKeyboard::handleKeyPressEvent(const xcb_key_press_event_t *event) |