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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QVIRTUALKEYBOARDINPUTENGINE_H
#define QVIRTUALKEYBOARDINPUTENGINE_H
#include <QtCore/QObject>
#include <QtCore/QPointer>
#include <QtQml/qqml.h>
#include <QtVirtualKeyboard/qvirtualkeyboard_global.h>
QT_BEGIN_NAMESPACE
class QVirtualKeyboardInputContext;
class QVirtualKeyboardSelectionListModel;
class QVirtualKeyboardAbstractInputMethod;
class QVirtualKeyboardInputEnginePrivate;
class QVirtualKeyboardTrace;
class Q_VIRTUALKEYBOARD_EXPORT QVirtualKeyboardInputEngine : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(QVirtualKeyboardInputEngine)
Q_DECLARE_PRIVATE(QVirtualKeyboardInputEngine)
Q_PROPERTY(Qt::Key activeKey READ activeKey NOTIFY activeKeyChanged)
Q_PROPERTY(Qt::Key previousKey READ previousKey NOTIFY previousKeyChanged)
Q_PROPERTY(QVirtualKeyboardAbstractInputMethod *inputMethod READ inputMethod WRITE setInputMethod NOTIFY inputMethodChanged)
Q_PROPERTY(QList<int> inputModes READ inputModes NOTIFY inputModesChanged)
Q_PROPERTY(InputMode inputMode READ inputMode WRITE setInputMode NOTIFY inputModeChanged)
Q_PROPERTY(QList<int> patternRecognitionModes READ patternRecognitionModes NOTIFY patternRecognitionModesChanged)
Q_PROPERTY(QVirtualKeyboardSelectionListModel *wordCandidateListModel READ wordCandidateListModel NOTIFY wordCandidateListModelChanged)
Q_PROPERTY(bool wordCandidateListVisibleHint READ wordCandidateListVisibleHint NOTIFY wordCandidateListVisibleHintChanged)
Q_MOC_INCLUDE("qvirtualkeyboardabstractinputmethod.h")
QML_NAMED_ELEMENT(InputEngine)
QML_UNCREATABLE("InputEngine is only available via InputContext.inputEngine")
QML_ADDED_IN_VERSION(1, 0)
QML_EXTRA_VERSION(2, 0)
explicit QVirtualKeyboardInputEngine(QVirtualKeyboardInputContext *parent = nullptr);
void init();
public:
enum class TextCase {
Lower,
Upper
};
Q_ENUM(TextCase)
enum class InputMode {
Latin,
Numeric,
Dialable,
Pinyin,
Cangjie,
Zhuyin,
Hangul,
Hiragana,
Katakana,
FullwidthLatin,
Greek,
Cyrillic,
Arabic,
Hebrew,
ChineseHandwriting,
JapaneseHandwriting,
KoreanHandwriting,
Thai,
Stroke,
Romaji,
};
Q_ENUM(InputMode)
enum class PatternRecognitionMode {
None,
PatternRecognitionDisabled = None,
Handwriting,
HandwritingRecoginition = Handwriting
};
Q_ENUM(PatternRecognitionMode)
enum class ReselectFlag {
WordBeforeCursor = 0x1,
WordAfterCursor = 0x2,
WordAtCursor = WordBeforeCursor | WordAfterCursor
};
Q_FLAG(ReselectFlag)
Q_DECLARE_FLAGS(ReselectFlags, ReselectFlag)
public:
~QVirtualKeyboardInputEngine();
Q_INVOKABLE bool virtualKeyPress(Qt::Key key, const QString &text, Qt::KeyboardModifiers modifiers, bool repeat);
Q_INVOKABLE void virtualKeyCancel();
Q_INVOKABLE bool virtualKeyRelease(Qt::Key key, const QString &text, Qt::KeyboardModifiers modifiers);
Q_INVOKABLE bool virtualKeyClick(Qt::Key key, const QString &text, Qt::KeyboardModifiers modifiers);
QVirtualKeyboardInputContext *inputContext() const;
Qt::Key activeKey() const;
Qt::Key previousKey() const;
QVirtualKeyboardAbstractInputMethod *inputMethod() const;
void setInputMethod(QVirtualKeyboardAbstractInputMethod *inputMethod);
QList<int> inputModes() const;
InputMode inputMode() const;
void setInputMode(InputMode inputMode);
QVirtualKeyboardSelectionListModel *wordCandidateListModel() const;
bool wordCandidateListVisibleHint() const;
QList<int> patternRecognitionModes() const;
Q_INVOKABLE QVirtualKeyboardTrace *traceBegin(
int traceId, PatternRecognitionMode patternRecognitionMode,
const QVariantMap &traceCaptureDeviceInfo, const QVariantMap &traceScreenInfo);
Q_INVOKABLE bool traceEnd(QVirtualKeyboardTrace *trace);
Q_INVOKABLE bool reselect(int cursorPosition, const ReselectFlags &reselectFlags);
bool clickPreeditText(int cursorPosition);
Q_SIGNALS:
void virtualKeyClicked(Qt::Key key, const QString &text, Qt::KeyboardModifiers modifiers, bool isAutoRepeat);
void activeKeyChanged(Qt::Key key);
void previousKeyChanged(Qt::Key key);
void inputMethodChanged();
void inputMethodReset();
void inputMethodUpdate();
void inputModesChanged();
void inputModeChanged();
void patternRecognitionModesChanged();
void wordCandidateListModelChanged();
void wordCandidateListVisibleHintChanged();
private Q_SLOTS:
void reset();
void update();
void shiftChanged();
void updateSelectionListModels();
void updateInputModes();
protected:
void timerEvent(QTimerEvent *timerEvent) override;
private:
friend class QVirtualKeyboardInputContext;
friend class QVirtualKeyboardInputContextPrivate;
};
Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(QVirtualKeyboardInputEngine::InputMode key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
Q_DECLARE_OPERATORS_FOR_FLAGS(QVirtualKeyboardInputEngine::ReselectFlags)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QVirtualKeyboardInputEngine::TextCase)
Q_DECLARE_METATYPE(QVirtualKeyboardInputEngine::InputMode)
Q_DECLARE_METATYPE(QVirtualKeyboardInputEngine::PatternRecognitionMode)
Q_DECLARE_METATYPE(QVirtualKeyboardInputEngine::ReselectFlag)
#endif
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