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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or 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.GPL2 and 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgstreamercamerafocus_p.h"
#include "qgstreamercamera_p.h"
#include <QDebug>
#include <QtCore/qcoreevent.h>
#include <QtCore/qmetaobject.h>
#include <private/qgstutils_p.h>
#define ZOOM_PROPERTY "zoom"
#define MAX_ZOOM_PROPERTY "max-zoom"
//#define CAMERABIN_DEBUG 1
QT_BEGIN_NAMESPACE
QGstreamerCameraFocus::QGstreamerCameraFocus(QGstreamerCamera *session)
: QPlatformCameraFocus(session),
m_camera(session),
m_focusMode(QCamera::FocusModeAuto)
{
#if QT_CONFIG(gstreamer_photography)
auto photography = m_camera->photography();
if (photography)
gst_photography_set_focus_mode(m_camera->photography(), GST_PHOTOGRAPHY_FOCUS_MODE_CONTINUOUS_NORMAL);
#endif
}
QGstreamerCameraFocus::~QGstreamerCameraFocus()
{
}
QCamera::FocusMode QGstreamerCameraFocus::focusMode() const
{
return m_focusMode;
}
void QGstreamerCameraFocus::setFocusMode(QCamera::FocusMode mode)
{
if (mode == m_focusMode)
return;
#if QT_CONFIG(gstreamer_photography)
auto photography = m_camera->photography();
if (photography) {
GstPhotographyFocusMode photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_CONTINUOUS_NORMAL;
switch (mode) {
case QCamera::FocusModeAutoNear:
photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_MACRO;
break;
case QCamera::FocusModeAutoFar:
// not quite, but hey :)
Q_FALLTHROUGH();
case QCamera::FocusModeHyperfocal:
photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_HYPERFOCAL;
break;
case QCamera::FocusModeInfinity:
photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_INFINITY;
break;
case QCamera::FocusModeManual:
photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_MANUAL;
break;
default: // QCamera::FocusModeAuto:
break;
}
if (gst_photography_set_focus_mode(photography, photographyMode)) {
m_focusMode = mode;
emit focusModeChanged(m_focusMode);
}
}
#endif
}
bool QGstreamerCameraFocus::isFocusModeSupported(QCamera::FocusMode mode) const
{
Q_UNUSED(mode);
#if QT_CONFIG(gstreamer_photography)
auto photography = m_camera->photography();
if (photography)
return true;
#endif
return false;
}
QPlatformCameraFocus::ZoomRange QGstreamerCameraFocus::zoomFactorRange() const
{
// We do some heuristics here and support zooming in until a
// resolution of 320x240 or max 4x
return { 1., 1. };
}
void QGstreamerCameraFocus::zoomTo(float newZoomFactor, float /*rate*/)
{
auto range = zoomFactorRange();
newZoomFactor = qBound(range.min, newZoomFactor, range.max);
// #### Now do the zooming
}
QT_END_NAMESPACE
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