class LogicClass : public QObject
{
Q_OBJECT
public:
explicit LogicClass(QObject *parent = 0);
int max(){ return 100; }
int min(){ return 0; }
void emit50(){ emit signalProgress(50); }
signals:
void signalProgress(int);
public slots:
};
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
LogicClass logic;
ui->progressBar->setMaximum( logic.max() );
ui->progressBar->setMinimum( logic.min() );
connect( &logic, SIGNAL( signalProgress(int) ), ui->progressBar, SLOT( setValue(int) ) );
logic.emit50();
}
What is the proper way to set QProgressBar to update from the logic layer?
-
14-01-2022 - |
문제
If I want to update a QProgressBar on the view layers from a loop on the logic layer (such as each iteration will update the progress bar), what is the proper way to do that?
Thanks
해결책
다른 팁
QProgressBar has some public slots that are used for setting min and max values and current value. Increasing the current value causes the progress bar to move. You can emit a signal from the logic layer that is connected to "void setValue ( int value )" slot of QProgressBar. http://doc.qt.digia.com/qt/qprogressbar.html
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