| 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 QQUICKCANVASCONTEXT_P_H | 
| 5 | #define QQUICKCANVASCONTEXT_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 |  | 
| 20 | QT_REQUIRE_CONFIG(quick_canvas); | 
| 21 |  | 
| 22 | #include <QtQuick/qquickitem.h> | 
| 23 | #include <QtQml/private/qv4staticvalue_p.h> | 
| 24 |  | 
| 25 | QT_BEGIN_NAMESPACE | 
| 26 |  | 
| 27 | namespace QV4 { | 
| 28 |     struct ExecutionEngine; | 
| 29 | } | 
| 30 |  | 
| 31 | class QQuickCanvasItem; | 
| 32 | class QSGLayer; | 
| 33 |  | 
| 34 | class QQuickCanvasContext : public QObject | 
| 35 | { | 
| 36 |     Q_OBJECT | 
| 37 |  | 
| 38 | public: | 
| 39 |     QQuickCanvasContext(QObject *parent = nullptr); | 
| 40 |     ~QQuickCanvasContext(); | 
| 41 |  | 
| 42 |     virtual QStringList contextNames() const = 0; | 
| 43 |  | 
| 44 |     // Init (ignore options if necessary) | 
| 45 |     virtual void init(QQuickCanvasItem *canvasItem, const QVariantMap &args) = 0; | 
| 46 |  | 
| 47 |     virtual void prepare(const QSize& canvasSize, const QSize& tileSize, const QRect& canvasWindow, const QRect& dirtyRect, bool smooth, bool antialiasing); | 
| 48 |     virtual void flush(); | 
| 49 |  | 
| 50 |     virtual QV4::ExecutionEngine *v4Engine() const = 0; | 
| 51 |     virtual void setV4Engine(QV4::ExecutionEngine *engine) = 0; | 
| 52 |     virtual QV4::ReturnedValue v4value() const = 0; | 
| 53 |  | 
| 54 |     virtual QImage toImage(const QRectF& bounds) = 0; | 
| 55 |  | 
| 56 | Q_SIGNALS: | 
| 57 |     void textureChanged(); | 
| 58 | }; | 
| 59 |  | 
| 60 | QT_END_NAMESPACE | 
| 61 |  | 
| 62 | #endif //QQUICKCANVASCONTEXT_P_H | 
| 63 |  |