Hi every one:
There is a sample in Qt assistant. How judge "stopwatch" exist?
class Stopwatch : public QObject
{
Q_OBJECT
public:
Stopwatch();
Q_INVOKABLE bool isRunning() const;
public slots:
void start();
void stop();
private:
bool m_running;
};
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QDeclarativeView view;
view.rootContext()->setContextProperty("stopwatch",
new Stopwatch);
view.setSource(QUrl::fromLocalFile("main.qml"));
view.show();
return app.exec();
} import Qt 4.7
Rectangle {
width: 300
height: 300
MouseArea {
anchors.fill: parent
onClicked: {
if (stopwatch.isRunning())
stopwatch.stop()
else
stopwatch.start();
}
}
}
Best regards.
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