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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * viewfinder_qt.h - qcam - QPainter-based ViewFinder
+ */
+#ifndef __QCAM_VIEWFINDER_QT_H__
+#define __QCAM_VIEWFINDER_QT_H__
+
+#include <QIcon>
+#include <QImage>
+#include <QList>
+#include <QMutex>
+#include <QSize>
+#include <QWidget>
+
+#include <libcamera/buffer.h>
+#include <libcamera/formats.h>
+#include <libcamera/pixel_format.h>
+
+#include "format_converter.h"
+#include "viewfinder.h"
+
+class ViewFinderQt : public QWidget, public ViewFinder
+{
+ Q_OBJECT
+
+public:
+ ViewFinderQt(QWidget *parent);
+ ~ViewFinderQt();
+
+ const QList<libcamera::PixelFormat> &nativeFormats() const override;
+
+ int setFormat(const libcamera::PixelFormat &format, const QSize &size) override;
+ void render(libcamera::FrameBuffer *buffer, MappedBuffer *map) override;
+ void stop() override;
+
+ QImage getCurrentImage() override;
+
+Q_SIGNALS:
+ void renderComplete(libcamera::FrameBuffer *buffer);
+
+protected:
+ void paintEvent(QPaintEvent *) override;
+ QSize sizeHint() const override;
+
+private:
+ FormatConverter converter_;
+
+ libcamera::PixelFormat format_;
+ QSize size_;
+
+ /* Camera stopped icon */
+ QSize vfSize_;
+ QIcon icon_;
+ QPixmap pixmap_;
+
+ /* Buffer and render image */
+ libcamera::FrameBuffer *buffer_;
+ QImage image_;
+ QMutex mutex_; /* Prevent concurrent access to image_ */
+};
+
+#endif /* __QCAM_VIEWFINDER_QT_H__ */

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