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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtCanvas3D module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
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17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
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24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
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38 | ****************************************************************************/ |
39 | |
40 | // |
41 | // W A R N I N G |
42 | // ------------- |
43 | // |
44 | // This file is not part of the QtCanvas3D API. It exists purely as an |
45 | // implementation detail. This header file may change from version to |
46 | // version without notice, or even be removed. |
47 | // |
48 | // We mean it. |
49 | |
50 | #ifndef TEXIMAGE3D_P_H |
51 | #define TEXIMAGE3D_P_H |
52 | |
53 | #include "context3d_p.h" |
54 | #include "abstractobject3d_p.h" |
55 | |
56 | #include <QtCore/QUrl> |
57 | #include <QtCore/QPointer> |
58 | #include <QtGui/QImage> |
59 | #include <QtNetwork/QNetworkAccessManager> |
60 | #include <QtNetwork/QNetworkReply> |
61 | |
62 | QT_BEGIN_NAMESPACE |
63 | |
64 | QT_CANVAS3D_BEGIN_NAMESPACE |
65 | |
66 | class CanvasTextureImageFactory : public QObject |
67 | { |
68 | Q_OBJECT |
69 | Q_DISABLE_COPY(CanvasTextureImageFactory) |
70 | |
71 | public: |
72 | static QObject *texture_image_factory_provider(QQmlEngine *engine, QJSEngine *scriptEngine); |
73 | static CanvasTextureImageFactory *factory(QQmlEngine *engine); |
74 | explicit CanvasTextureImageFactory(QQmlEngine *engine, QObject *parent = 0); |
75 | ~CanvasTextureImageFactory(); |
76 | |
77 | void handleImageLoadingStarted(CanvasTextureImage *image); |
78 | void notifyLoadedImages(); |
79 | |
80 | Q_INVOKABLE QJSValue newTexImage(); |
81 | void handleImageDestroyed(CanvasTextureImage *image); |
82 | |
83 | private: |
84 | QQmlEngine *m_qmlEngine; |
85 | QList<CanvasTextureImage *> m_loadingImagesList; |
86 | }; |
87 | |
88 | class CanvasTextureImage : public CanvasAbstractObject |
89 | { |
90 | Q_OBJECT |
91 | Q_DISABLE_COPY(CanvasTextureImage) |
92 | Q_PROPERTY(QUrl src READ src WRITE setSrc NOTIFY srcChanged) |
93 | Q_PROPERTY(TextureImageState imageState READ imageState NOTIFY imageStateChanged) |
94 | Q_PROPERTY(int width READ width NOTIFY widthChanged) |
95 | Q_PROPERTY(int height READ height NOTIFY heightChanged) |
96 | Q_PROPERTY(QString errorString READ errorString NOTIFY errorStringChanged) |
97 | Q_ENUMS(TextureImageState) |
98 | |
99 | public: |
100 | enum TextureImageState { |
101 | INITIALIZED = 0, |
102 | LOAD_PENDING, |
103 | LOADING, |
104 | LOADING_FINISHED, |
105 | LOADING_ERROR |
106 | }; |
107 | |
108 | explicit CanvasTextureImage(CanvasTextureImageFactory *parent, QQmlEngine *engine); |
109 | virtual ~CanvasTextureImage(); |
110 | |
111 | Q_INVOKABLE QJSValue create(); |
112 | Q_INVOKABLE ulong id(); |
113 | Q_INVOKABLE QJSValue resize(int width, int height); |
114 | |
115 | QVariant *anything() const; |
116 | void setAnything(QVariant *value); |
117 | |
118 | const QUrl &src() const; |
119 | void setSrc(const QUrl &src); |
120 | TextureImageState imageState() const; |
121 | int width() const; |
122 | int height() const; |
123 | QString errorString() const; |
124 | |
125 | void emitImageLoaded(); |
126 | void emitImageLoadingError(); |
127 | |
128 | void load(); |
129 | void handleReply(); |
130 | QImage &getImage(); |
131 | uchar *convertToFormat(CanvasContext::glEnums format, bool flipY = false, bool premultipliedAlpha = false); |
132 | |
133 | friend QDebug operator<< (QDebug d, const CanvasTextureImage *buffer); |
134 | |
135 | private: |
136 | void setImageState(TextureImageState state); |
137 | explicit CanvasTextureImage(const QImage &source, int width, int height, |
138 | CanvasTextureImageFactory *parent, QQmlEngine *engine); |
139 | |
140 | signals: |
141 | void srcChanged(QUrl source); |
142 | void imageStateChanged(TextureImageState state); |
143 | void widthChanged(int width); |
144 | void heightChanged(int height); |
145 | void errorStringChanged(const QString errorString); |
146 | void anythingChanged(QVariant *value); |
147 | void imageLoadingStarted(CanvasTextureImage *image); |
148 | void imageLoaded(CanvasTextureImage *image); |
149 | void imageLoadingFailed(CanvasTextureImage *image); |
150 | |
151 | private: |
152 | void cleanupNetworkReply(); |
153 | |
154 | QQmlEngine *m_engine; |
155 | QNetworkAccessManager *m_networkAccessManager; // not owned |
156 | QNetworkReply *m_networkReply; |
157 | QImage m_image; |
158 | QUrl m_source; |
159 | TextureImageState m_state; |
160 | QString m_errorString; |
161 | uchar *m_pixelCache; |
162 | CanvasContext::glEnums m_pixelCacheFormat; |
163 | bool m_pixelCacheFlipY; |
164 | QImage m_glImage; |
165 | QVariant *m_anyValue; |
166 | QPointer<CanvasTextureImageFactory> m_parentFactory; |
167 | }; |
168 | |
169 | QT_CANVAS3D_END_NAMESPACE |
170 | |
171 | QT_END_NAMESPACE |
172 | |
173 | #endif // TEXIMAGE3D_P_H |
174 | |