1// Copyright (C) 2016 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
2// Copyright (C) 2022 The Qt Company Ltd.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5#ifndef QGFXSOURCEPROXY_P_H
6#define QGFXSOURCEPROXY_P_H
7
8//
9// W A R N I N G
10// -------------
11//
12// This file is not part of the Qt API. It exists purely as an
13// implementation detail. This header file may change from version to
14// version without notice, or even be removed.
15//
16// We mean it.
17//
18
19#include <QtQuick/QQuickItem>
20#include <QtCore/private/qglobal_p.h>
21
22QT_BEGIN_NAMESPACE
23
24class QQuickShaderEffectSource;
25
26class QGfxSourceProxyME : public QQuickItem
27{
28 Q_OBJECT
29 Q_PROPERTY(QQuickItem *input READ input WRITE setInput NOTIFY inputChanged RESET resetInput FINAL)
30 Q_PROPERTY(QQuickItem *output READ output NOTIFY outputChanged FINAL)
31 Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged FINAL)
32 Q_PROPERTY(bool active READ isActive NOTIFY activeChanged FINAL)
33 Q_PROPERTY(Interpolation interpolation READ interpolation WRITE setInterpolation NOTIFY interpolationChanged FINAL)
34
35public:
36 enum class Interpolation {
37 Any,
38 Nearest,
39 Linear
40 };
41 Q_ENUM(Interpolation)
42
43 QGfxSourceProxyME(QQuickItem *parentItem = nullptr);
44 ~QGfxSourceProxyME();
45
46 QQuickItem *input() const { return m_input; }
47 void setInput(QQuickItem *input);
48 void resetInput() { setInput(nullptr); }
49
50 QQuickItem *output() const { return m_output; }
51
52 QRectF sourceRect() const { return m_sourceRect; }
53 void setSourceRect(const QRectF &sourceRect);
54
55 bool isActive() const { return m_output && m_output != m_input; }
56
57 void setInterpolation(Interpolation i);
58 Interpolation interpolation() const { return m_interpolation; }
59
60protected:
61 void updatePolish() override;
62
63Q_SIGNALS:
64 void inputChanged();
65 void outputChanged();
66 void sourceRectChanged();
67 void activeChanged();
68 void interpolationChanged();
69
70private Q_SLOTS:
71 void repolish();
72
73private:
74 void setOutput(QQuickItem *output);
75 void useProxy();
76 static QObject *findLayer(QQuickItem *);
77
78 QRectF m_sourceRect;
79 QQuickItem *m_input = nullptr;
80 QQuickItem *m_output = nullptr;
81 QQuickShaderEffectSource *m_proxy = nullptr;
82
83 Interpolation m_interpolation = Interpolation::Any;
84};
85
86QT_END_NAMESPACE
87
88#endif // QGFXSOURCEPROXY_P_H
89

source code of qtdeclarative/src/effects/qgfxsourceproxy_p.h