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The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Reimplements an access function for property: QWidget::sizeHint.ĭocumentation contributions included herein are the copyrights of Reimplements: QWidget::paintEvent(QPaintEvent *event). void QProgressBar:: paintEvent( QPaintEvent *) Reimplements an access function for property: QWidget::minimumSizeHint. QSize QProgressBar:: minimumSizeHint() const This method is useful for subclasses when they need a QStyleOptionProgressBar, but don't want to fill in all the information themselves. Initialize option with the values from this QProgressBar. void QProgressBar:: initStyleOption( QStyleOptionProgressBar * option) const Reimplements: QWidget::event(QEvent *event).
QProgressBar:: ~QProgressBar()ĭestructor. Note: Notifier signal for property value. Hastings Manufacturing designs and manufactures piston rings for the worlds. With best in class technology, our goal is to create a marketplace of ideas in order to share freedom and democracy around the world. 5:1 compression sets for those doing a twin turbo 3. value is the new value shown by the progress bar. GETTR is a brand new social media platform founded on the principles of free speech, independent thought and rejecting political censorship and cancel culture. This signal is emitted when the value shown in the progress bar changes. void QProgressBar:: valueChanged( int value) The QProgressBar can be set to undetermined state by using setRange(0, 0). If the current value falls outside the new range, the progress bar is reset with reset(). If maximum is smaller than minimum, minimum becomes the only legal value. Sets the progress bar's minimum and maximum values to minimum and maximum respectively. void QProgressBar:: setRange( int minimum, int maximum) The progress bar "rewinds" and shows no progress. Member Function Documentation QProgressBar:: QProgressBar( QWidget * parent = nullptr)Ĭonstructs a progress bar with the given parent.īy default, the minimum step value is set to 0, and the maximum to 100.
This is useful, for example, when using QNetworkAccessManager to download items when they are unable to determine the size of the item being downloaded. If minimum and maximum both are set to 0, the bar shows a busy indicator instead of a percentage of steps. The progress bar can be rewound to the beginning with reset().
The current number of steps is set with setValue().
You can specify the minimum and maximum number of steps with setMinimum() and setMaximum. The percentage is calculated by dividing the progress ( value() - minimum()) divided by maximum() - minimum(). You set it up by specifying the minimum and maximum possible step values, and it will display the percentage of steps that have been completed when you later give it the current step value. The progress bar uses the concept of steps. A progress bar is used to give the user an indication of the progress of an operation and to reassure them that the application is still running.