Tag: inbox

QML customizable SpinBox with long press and short press

Default long press + 10. Short press + 1 The main difficulty is to distinguish between long press and short press, with 1s as the limit. Here I use four timers to implement the long and short press operations of addition and subtraction. The shortClickTimer timer is used to determine whether it is a short […]

QSpinBox and QDoubleSpinBox

QSpinBox and QDoubleSpinBox are commonly used numerical input and output components. We refer to them collectively as SpinBox. The data read from SpinBox is a numerical value (integer or floating point number), and it can be displayed directly by setting the numerical value. QSpinBox is used to input and output integers, which are generally displayed […]

QSpinBox spin box/spin button

1. The QSpinBox class is a direct subclass and specific implementation of the QAbstractSpinBox class. 2. The QSpinBox class is designed to handle integer and discrete value collections. For floating point values use the QDoubleSpinBox class implementation. Now (the function of the QDoubleSpinBox class is the same as the QSpinBox class. Construct a QDoubleSpinBox rotation […]

QStyle customizes the appearance of QSpinBox

Click to view detailed introduction head File #ifndef SPINBOX_STYLE_1_H #define SPINBOX_STYLE_1_H #include <QProxyStyle> #include <QStyleOptionComplex> #include <QPainter> class spinbox_1 : public QProxyStyle { Q_OBJECT public: spinbox_1(); ~spinbox_1(); public: void drawComplexControl(ComplexControl control, const QStyleOptionComplex *option, QPainter *painter, const QWidget *widget = 0) const; void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget = 0) […]

Qt implements custom QDoubleSpinBox soft keyboard

In Qt application development, we often encounter the need to customize input controls. Among them, for the QDoubleSpinBox control, if you want to pop up a custom soft keyboard when you click it, so that the user can input a value and set the input value to the QDoubleSpinBox, how to achieve it? In this […]

QAbstractSpinBox, QAbstractButton

QAbstractButton 1. Description Abstract class for buttons. Subclasses of this class handle user actions and specify how the button is drawn. If the button is a text button, and the string contains an ampersand (‘ & amp;’), QAbstractButton automatically creates a shortcut key. QPushButton *button = new QPushButton(tr(“Ro & amp;ck & amp; & amp; Roll”), […]

41 – Input and Display – Numeric input controls QSpinBox and QDoubleSpinBox

Number input controls QSpinBox and QDoubleSpinBox QSpinBox and QDoubleSpinBox controls are specially used for inputting numerical values. The former can only input integers and the latter can only input floating-point numbers. There can be buttons on the right, or there can be no buttons. QSpinBox and QDoubleSpinBox controls are a combination of QLineEdit controls and […]

046.PyQt5_QAbstractSpinBox_ step size regulator base class

QAbstractSpinBox step adjustment control parent control Description Data is scaled and displayed by a step sizer and a single-line text box (QLineEdit object) Inheritance: QWidget Abstract class, although you can directly use this class to create objects, but the adjustment button on the right does not work The functions in the QAbstractSpinBox object are all […]

047.PyQt5_QSpinBox_Integer data step size regulator

PyQt5_QSpinBox_Integer data step size regulator Description Mainly handles integer and discrete value sets (1-99, January-December, Monday-Sunday) Allows the user to increase/decrease the currently displayed value by clicking the up/down buttons or pressing up/down on the keyboard to select a value. Users can also manually type in the value The spin box supports integer values, and […]