8bdceb9357
Report camera is ready to capture only in image capture modes; Emit capture failed if camera not configured for capture Change-Id: Ia2b92e2f8c760db948185a29c3e5ceae81dd3af4 Reviewed-by: Lev Zelenskiy <lev.zelenskiy@nokia.com> Reviewed-by: Ling Hu <ling.hu@nokia.com>
115 lines
4.1 KiB
C++
115 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qgstreamerimagecapturecontrol.h"
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#include <QtCore/QDebug>
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#include <QtCore/QDir>
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QGstreamerImageCaptureControl::QGstreamerImageCaptureControl(QGstreamerCaptureSession *session)
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:QCameraImageCaptureControl(session), m_session(session), m_ready(false), m_lastId(0)
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{
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connect(m_session, SIGNAL(stateChanged(QGstreamerCaptureSession::State)), SLOT(updateState()));
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connect(m_session, SIGNAL(imageExposed(int)), this, SIGNAL(imageExposed(int)));
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connect(m_session, SIGNAL(imageCaptured(int,QImage)), this, SIGNAL(imageCaptured(int,QImage)));
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connect(m_session, SIGNAL(imageSaved(int,QString)), this, SIGNAL(imageSaved(int,QString)));
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}
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QGstreamerImageCaptureControl::~QGstreamerImageCaptureControl()
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{
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}
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bool QGstreamerImageCaptureControl::isReadyForCapture() const
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{
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return m_ready;
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}
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int QGstreamerImageCaptureControl::capture(const QString &fileName)
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{
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m_lastId++;
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//it's allowed to request image capture while camera is starting
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if (m_session->pendingState() == QGstreamerCaptureSession::StoppedState ||
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!(m_session->captureMode() & QGstreamerCaptureSession::Image)) {
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//emit error in the next event loop,
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//so application can associate it with returned request id.
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QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
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Q_ARG(int, m_lastId),
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Q_ARG(int, QCameraImageCapture::NotReadyError),
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Q_ARG(QString,tr("Not ready to capture")));
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return m_lastId;
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}
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QString path = fileName;
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if (path.isEmpty()) {
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int lastImage = 0;
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QDir outputDir = QDir::currentPath();
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foreach(QString fileName, outputDir.entryList(QStringList() << "img_*.jpg")) {
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int imgNumber = fileName.mid(4, fileName.size()-8).toInt();
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lastImage = qMax(lastImage, imgNumber);
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}
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path = QString("img_%1.jpg").arg(lastImage+1,
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4, //fieldWidth
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10,
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QLatin1Char('0'));
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}
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m_session->captureImage(m_lastId, path);
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return m_lastId;
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}
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void QGstreamerImageCaptureControl::cancelCapture()
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{
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}
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void QGstreamerImageCaptureControl::updateState()
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{
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bool ready = (m_session->state() == QGstreamerCaptureSession::PreviewState) &&
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(m_session->captureMode() & QGstreamerCaptureSession::Image);
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if (m_ready != ready) {
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emit readyForCaptureChanged(m_ready = ready);
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}
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}
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