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The base class for input methods. More..

Header:	#include <QVirtualKeyboardAbstractInputMethod>
qmake:	QT += virtualkeyboard
Inherits:	QObject

Public Functions

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QVirtualKeyboardAbstractInputMethod(QObject *parent = nullptr)
virtual	~QVirtualKeyboardAbstractInputMethod()
virtual bool	clickPreeditText(int cursorPosition)
QVirtualKeyboardInputContext *	inputContext() const
QVirtualKeyboardInputEngine *	inputEngine() const
virtual QList<QVirtualKeyboardInputEngine::InputMode>	inputModes(const QString &locale) = 0
virtual bool	keyEvent(Qt::Key key, const QString &text, Qt::KeyboardModifiers modifiers) = 0
virtual QList<QVirtualKeyboardInputEngine::PatternRecognitionMode>	patternRecognitionModes() const
virtual bool	reselect(int cursorPosition, const QVirtualKeyboardInputEngine::ReselectFlags &reselectFlags)
virtual QVariant	selectionListData(QVirtualKeyboardSelectionListModel::Type type, int index, QVirtualKeyboardSelectionListModel::Role role)
virtual int	selectionListItemCount(QVirtualKeyboardSelectionListModel::Type type)
virtual void	selectionListItemSelected(QVirtualKeyboardSelectionListModel::Type type, int index)
virtual bool	selectionListRemoveItem(QVirtualKeyboardSelectionListModel::Type type, int index)
virtual QList<QVirtualKeyboardSelectionListModel::Type>	selectionLists()
virtual bool	setInputMode(const QString &locale, QVirtualKeyboardInputEngine::InputMode inputMode) = 0
virtual bool	setTextCase(QVirtualKeyboardInputEngine::TextCase textCase) = 0
virtual QVirtualKeyboardTrace *	traceBegin(int traceId, QVirtualKeyboardInputEngine::PatternRecognitionMode patternRecognitionMode, const QVariantMap &traceCaptureDeviceInfo, const QVariantMap &traceScreenInfo)
virtual bool	traceEnd(QVirtualKeyboardTrace *trace)

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31 public functions inherited from QObject

Public Slots

1 public slot inherited from QObject

Signals

void	selectionListActiveItemChanged(QVirtualKeyboardSelectionListModel::Type type, int index)
void	selectionListChanged(QVirtualKeyboardSelectionListModel::Type type)
void	selectionListsChanged()

2 signals inherited from QObject

Static Public Members

9 static public members inherited from QObject

Additional Inherited Members

1 property inherited from QObject
9 protected functions inherited from QObject

Detailed Description

The base class for input methods.

Use this class if you want to implement a custom input method using C/C++ language.

Member Function Documentation

QVirtualKeyboardAbstractInputMethod::QVirtualKeyboardAbstractInputMethod(QObject **parent* = nullptr)

Constructs an input method with parent.

`[virtual]` QVirtualKeyboardAbstractInputMethod::~QVirtualKeyboardAbstractInputMethod()

Destroys the input method and frees all allocated resources.

`[virtual]` bool QVirtualKeyboardAbstractInputMethod::clickPreeditText(intcursorPosition)

Called when the user clicks on pre-edit text at cursorPosition.

The function should return true if it handles the event. Otherwise the input falls back to reselect() for further processing.

This function was introduced in QtQuick.VirtualKeyboard 2.4.

QVirtualKeyboardInputContext *QVirtualKeyboardAbstractInputMethod::inputContext() const

Returns the input context associated with the input method. This method returns NULL if the input method is not active.

QVirtualKeyboardInputEngine *QVirtualKeyboardAbstractInputMethod::inputEngine() const

Returns the input engine associated with the input method. This method returns NULL if the input method is not active.

`[pure virtual]` QList<QVirtualKeyboardInputEngine::InputMode> QVirtualKeyboardAbstractInputMethod::inputModes(const QString &locale)

Returns the list of input modes for locale.

`[pure virtual]` bool QVirtualKeyboardAbstractInputMethod::keyEvent(Qt::Keykey, const QString &text, Qt::KeyboardModifiersmodifiers)

The purpose of this method is to handle the key events generated by the the input engine.

The key parameter specifies the code of the key to handle. The key code does not distinguish between capital and non-capital letters. The text parameter contains the Unicode text for the key. The modifiers parameter contains the key modifiers that apply to key.

This method returns true if the key event was successfully handled. If the return value is false, the key event is redirected to the default input method for further processing.

`[virtual]` QList<QVirtualKeyboardInputEngine::PatternRecognitionMode> QVirtualKeyboardAbstractInputMethod::patternRecognitionModes() const

Returns list of supported pattern recognition modes.

This method is called by the input engine to query the list of supported pattern recognition modes.

This function was introduced in QtQuick.VirtualKeyboard 2.0.

`[virtual]` bool QVirtualKeyboardAbstractInputMethod::reselect(intcursorPosition, const QVirtualKeyboardInputEngine::ReselectFlags &reselectFlags)

This function attempts to reselect a word located at the cursorPosition. The reselectFlags define the rules for how the word should be selected in relation to the cursor position.

The function returns true if the word was successfully reselected.

This function was introduced in QtQuick.VirtualKeyboard 2.0.

`[virtual slot]` void QVirtualKeyboardAbstractInputMethod::reset()

This method is called by the input engine when the input method needs to be reset. The input method must reset its internal state only. The main difference to the update() method is that reset() modifies only