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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef LIPIWORKER_H
#define LIPIWORKER_H
#include <QThread>
#include <QSemaphore>
#include <QMutex>
#include <QStringList>
#include <QSharedPointer>
#include <QMap>
#include "LTKTypes.h"
#include "LTKCaptureDevice.h"
#include "LTKScreenContext.h"
#include "LTKTraceGroup.h"
#include "LTKChannel.h"
#include "LTKTraceFormat.h"
#include "LTKTrace.h"
#include "LTKShapeRecognizer.h"
#include "LTKShapeRecoResult.h"
namespace QtVirtualKeyboard {
class LipiTask : public QObject
{
Q_OBJECT
public:
explicit LipiTask(QObject *parent = 0) :
QObject(parent),
shapeRecognizer(0)
{}
virtual void run() = 0;
LTKShapeRecognizer *shapeRecognizer;
};
class LipiLoadModelDataTask : public LipiTask
{
Q_OBJECT
public:
void run();
};
class LipiRecognitionTask : public LipiTask
{
Q_OBJECT
public:
explicit LipiRecognitionTask(const LTKCaptureDevice& deviceInfo,
const LTKScreenContext& screenContext,
const vector<int>& inSubsetOfClasses,
float confThreshold,
int numChoices,
int resultId);
void run();
bool cancelRecognition();
int resultId() const;
LTKTraceGroup traceGroup;
private:
friend class LipiSharedRecognizer;
const QMap<int, QChar> unicodeMap;
const LTKCaptureDevice deviceInfo;
const LTKScreenContext screenContext;
const vector<int> inSubsetOfClasses;
const float confThreshold;
const int numChoices;
QSharedPointer<vector<LTKShapeRecoResult> > resultVector;
const int _resultId;
QMutex stateLock;
bool stateRunning;
bool stateCancelled;
};
class LipiRecognitionResultsTask : public LipiTask
{
Q_OBJECT
public:
explicit LipiRecognitionResultsTask(QSharedPointer<vector<LTKShapeRecoResult> > resultVector,
const QMap<int, QChar> &unicodeMap,
int resultId);
void run();
signals:
void resultsAvailable(const QVariantList &resultList);
private:
QSharedPointer<vector<LTKShapeRecoResult> > resultVector;
const QMap<int, QChar> &unicodeMap;
const int _resultId;
};
class LipiWorker : public QThread
{
Q_OBJECT
public:
explicit LipiWorker(LTKShapeRecognizer *shapeRecognizer, QObject *parent = 0);
~LipiWorker();
void addTask(QSharedPointer<LipiTask> task);
int removeTask(QSharedPointer<LipiTask> task);
int removeAllTasks();
protected:
void run();
private:
QList<QSharedPointer<LipiTask> > taskList;
QSemaphore taskSema;
QMutex taskLock;
LTKShapeRecognizer *shapeRecognizer;
QBasicAtomicInt abort;
};
} // namespace QtVirtualKeyboard
#endif // LIPIWORKER_H
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