OpenShot Library | libopenshot  0.2.6
VideoRenderWidget.h
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1 /**
2  * @file
3  * @brief Header file for Video RendererWidget class
4  * @author Jonathan Thomas <jonathan@openshot.org>
5  *
6  * @ref License
7  */
8 
9 /* LICENSE
10  *
11  * Copyright (c) 2008-2019 OpenShot Studios, LLC
12  * <http://www.openshotstudios.com/>. This file is part of
13  * OpenShot Library (libopenshot), an open-source project dedicated to
14  * delivering high quality video editing and animation solutions to the
15  * world. For more information visit <http://www.openshot.org/>.
16  *
17  * OpenShot Library (libopenshot) is free software: you can redistribute it
18  * and/or modify it under the terms of the GNU Lesser General Public License
19  * as published by the Free Software Foundation, either version 3 of the
20  * License, or (at your option) any later version.
21  *
22  * OpenShot Library (libopenshot) is distributed in the hope that it will be
23  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25  * GNU Lesser General Public License for more details.
26  *
27  * You should have received a copy of the GNU Lesser General Public License
28  * along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
29  */
30 
31 #ifndef OPENSHOT_VIDEO_RENDERER_WIDGET_H
32 #define OPENSHOT_VIDEO_RENDERER_WIDGET_H
33 
34 #include "../Fraction.h"
35 #include "VideoRenderer.h"
36 
37 #include <QWidget>
38 #include <QImage>
39 #include <QPaintEvent>
40 #include <QRect>
41 
42 class VideoRenderWidget : public QWidget
43 {
44  Q_OBJECT
45 
46 private:
47  VideoRenderer *renderer;
48  QImage image;
49  openshot::Fraction aspect_ratio;
50  openshot::Fraction pixel_ratio;
51 
52 public:
53  VideoRenderWidget(QWidget *parent = 0);
55 
56  VideoRenderer *GetRenderer() const;
57  void SetAspectRatio(openshot::Fraction new_aspect_ratio, openshot::Fraction new_pixel_ratio);
58 
59 protected:
60  void paintEvent(QPaintEvent *event);
61 
62  QRect centeredViewport(int width, int height);
63 
64 private slots:
65  void present(const QImage &image);
66 
67 };
68 
69 #endif // OPENSHOT_VIDEO_RENDERER_WIDGET_H
void paintEvent(QPaintEvent *event)
VideoRenderWidget(QWidget *parent=0)
VideoRenderer * GetRenderer() const
Header file for Video Renderer class.
QRect centeredViewport(int width, int height)
This class represents a fraction.
Definition: Fraction.h:48
void SetAspectRatio(openshot::Fraction new_aspect_ratio, openshot::Fraction new_pixel_ratio)