winrt: Implement QImageEncoderControl for camera

Implement QImageEncoderControl for camera still image capture.
It provides the functions to set camera capture resolution and
get supported resolutions list.

Task-number: QTBUG-46456
Change-Id: Ideb1aa02d420be3a30d588bebf31714fa4fa6415
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>

src/plugins/winrt/qwinrtimageencodercontrol.h

@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
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+** $QT_BEGIN_LICENSE:LGPL3$
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+** Licensees holding valid commercial Qt licenses may use this file in
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+** GNU Lesser General Public License Usage
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+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
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+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
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+****************************************************************************/
+
+#ifndef QWINRTIMAGEENCODERCONTROL_H
+#define QWINRTIMAGEENCODERCONTROL_H
+
+#include <qimageencodercontrol.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWinRTImageEncoderControlPrivate;
+class QWinRTImageEncoderControl : public QImageEncoderControl
+{
+public:
+    explicit QWinRTImageEncoderControl(QObject *parent = 0);
+
+    QStringList supportedImageCodecs() const Q_DECL_OVERRIDE;
+    QString imageCodecDescription(const QString &codecName) const Q_DECL_OVERRIDE;
+    QList<QSize> supportedResolutions(const QImageEncoderSettings &settings, bool *continuous = 0) const Q_DECL_OVERRIDE;
+    QImageEncoderSettings imageSettings() const Q_DECL_OVERRIDE;
+    void setImageSettings(const QImageEncoderSettings &settings) Q_DECL_OVERRIDE;
+
+    void setSupportedResolutionsList(const QList<QSize> resolution);
+    void applySettings();
+
+private:
+    QScopedPointer<QWinRTImageEncoderControlPrivate> d_ptr;
+    Q_DECLARE_PRIVATE(QWinRTImageEncoderControl)
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINRTIMAGEENCODERCONTROL_H