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#1695 fixed arrow key events with the Qt backend

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This commit is contained in:
Andrey Kamaev 2012-03-28 22:22:02 +00:00
parent dd01861de2
commit d46f44b48a
1 changed files with 90 additions and 92 deletions
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12
modules/highgui/src/window_QT.cpp
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@ -1555,6 +1555,8 @@ CvWindow::CvWindow(QString name, int arg2)
setWindowTitle(name);
setObjectName(name);
setFocus( Qt::PopupFocusReason ); //#1695 arrow keys are not recieved without the explicit focus
resize(400, 300);
setMinimumSize(1, 1);
@ -2060,22 +2062,18 @@ void CvWindow::keyPressEvent(QKeyEvent *event)
//see http://doc.trolltech.com/4.6/qt.html#Key-enum
int key = event->key();
//bool goodKey = false;
bool goodKey = true;
Qt::Key qtkey = static_cast<Qt::Key>(key);
char asciiCode = QTest::keyToAscii(qtkey);
if (asciiCode != 0)
{
key = static_cast<int>(asciiCode);
}
else
key = event->nativeVirtualKey(); //same codes as returned by GTK-based backend
//control plus (Z, +, -, up, down, left, right) are used for zoom/panning functions
if (event->modifiers() != Qt::ControlModifier && goodKey)
if (event->modifiers() != Qt::ControlModifier)
{
mutexKey.lock();
last_key = key;
//last_key = event->nativeVirtualKey ();
mutexKey.unlock();
key_pressed.wakeAll();
//event->accept();