Pd::ComboBox Class Reference

Combo box for selecting a value of an integer process variable. More...

#include <ComboBox.h>

Inheritance diagram for Pd::ComboBox:

Collaboration diagram for Pd::ComboBox:

Classes
struct	Impl

Public Member Functions
	ComboBox (QWidget *parent=0)
	Constructor. More...
virtual	~ComboBox ()
	Destructor. More...
void	clearData ()

Protected Member Functions
void	wheelEvent (QWheelEvent *) override
	Ignores wheel events, if the widget has no focus. More...

Private Member Functions
PD_PRIVATE void	newValues (std::chrono::nanoseconds) override
	This virtual method is called by the ProcessVariable, if its value changes. More...

Private Attributes
struct PD_PRIVATE	Impl
std::unique_ptr< Impl >	impl

Detailed Description

Combo box for selecting a value of an integer process variable.

Each item represents a value, that is stored as the item's user data (see QComboBox::addItem(const QString &, const QVariant &)):

comboBox->addItem("Local", 0);
comboBox->addItem("Remote", 1);
comboBox->setVariable(process, "/Mode/Value");

The item matching the current process value is selected. If there is no item for the current value, no item is selected and the value is displayed as placeholder text (Qt >= 5.15). Selecting an item by the user writes its value to the process.

To avoid unintentional changes, mouse wheel events are only processed, if the widget has the keyboard focus.

Constructor & Destructor Documentation

ComboBox()

ComboBox::ComboBox

(

QWidget *

parent = 0

)

Constructor.

Parameters

parent

parent widget

References Impl.

~ComboBox()

ComboBox::~ComboBox ( )

virtual

Destructor.

Member Function Documentation

clearData()

void ComboBox::clearData

(

)

References impl.

newValues()

void ComboBox::newValues ( std::chrono::nanoseconds  )

overrideprivate

This virtual method is called by the ProcessVariable, if its value changes.

References impl.

wheelEvent()

void ComboBox::wheelEvent ( QWheelEvent *  event )

overrideprotected

Ignores wheel events, if the widget has no focus.

This avoids changing process values unintentionally while scrolling.

Member Data Documentation

Impl

struct PD_PRIVATE Pd::ComboBox::Impl

private

Referenced by ComboBox().

impl

std::unique_ptr<Impl> Pd::ComboBox::impl

private

Referenced by clearData(), and newValues().

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The documentation for this class was generated from the following files:

• QtPdWidgets2/ComboBox.h
• src/ComboBox.cpp