1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QQUICKSHADEREFFECT_P_H
5#define QQUICKSHADEREFFECT_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <private/qtquickglobal_p.h>
19
20QT_REQUIRE_CONFIG(quick_shadereffect);
21
22#include <QtQuick/qquickitem.h>
23#include <private/qtquickglobal_p.h>
24#include <private/qsgadaptationlayer_p.h>
25
26QT_BEGIN_NAMESPACE
27
28class QQuickShaderEffectPrivate;
29
30class Q_QUICK_EXPORT QQuickShaderEffect : public QQuickItem
31{
32 Q_OBJECT
33 Q_PROPERTY(QUrl fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged)
34 Q_PROPERTY(QUrl vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged)
35 Q_PROPERTY(bool blending READ blending WRITE setBlending NOTIFY blendingChanged)
36 Q_PROPERTY(QVariant mesh READ mesh WRITE setMesh NOTIFY meshChanged)
37 Q_PROPERTY(CullMode cullMode READ cullMode WRITE setCullMode NOTIFY cullModeChanged)
38 Q_PROPERTY(QString log READ log NOTIFY logChanged)
39 Q_PROPERTY(Status status READ status NOTIFY statusChanged)
40 Q_PROPERTY(bool supportsAtlasTextures READ supportsAtlasTextures WRITE setSupportsAtlasTextures NOTIFY supportsAtlasTexturesChanged REVISION(2, 4))
41 QML_NAMED_ELEMENT(ShaderEffect)
42 QML_ADDED_IN_VERSION(2, 0)
43
44public:
45 enum CullMode {
46 NoCulling,
47 BackFaceCulling,
48 FrontFaceCulling
49 };
50 Q_ENUM(CullMode)
51
52 enum Status {
53 Compiled,
54 Uncompiled,
55 Error
56 };
57 Q_ENUM(Status)
58
59 QQuickShaderEffect(QQuickItem *parent = nullptr);
60 ~QQuickShaderEffect() override;
61
62 QUrl fragmentShader() const;
63 void setFragmentShader(const QUrl &fileUrl);
64
65 QUrl vertexShader() const;
66 void setVertexShader(const QUrl &fileUrl);
67
68 bool blending() const;
69 void setBlending(bool enable);
70
71 QVariant mesh() const;
72 void setMesh(const QVariant &mesh);
73
74 CullMode cullMode() const;
75 void setCullMode(CullMode face);
76
77 bool supportsAtlasTextures() const;
78 void setSupportsAtlasTextures(bool supports);
79
80 QString log() const;
81 Status status() const;
82
83 bool isComponentComplete() const;
84
85 bool updateUniformValue(const QByteArray &name, const QVariant &value);
86
87Q_SIGNALS:
88 void fragmentShaderChanged();
89 void vertexShaderChanged();
90 void blendingChanged();
91 void meshChanged();
92 void cullModeChanged();
93 void logChanged();
94 void statusChanged();
95 void supportsAtlasTexturesChanged();
96
97protected:
98 bool event(QEvent *e) override;
99 void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override;
100 QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData) override;
101 void componentComplete() override;
102 void itemChange(ItemChange change, const ItemChangeData &value) override;
103
104private:
105 Q_DECLARE_PRIVATE(QQuickShaderEffect)
106};
107
108QT_END_NAMESPACE
109
110#endif // QQUICKSHADEREFFECT_P_H
111

source code of qtdeclarative/src/quick/items/qquickshadereffect_p.h