1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 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 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 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 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QBACKINGSTORE_COCOA_H 41 #define QBACKINGSTORE_COCOA_H 42 43 #include <QtGraphicsSupport/private/qrasterbackingstore_p.h> 44 45 #include <private/qcore_mac_p.h> 46 47 #include <QScopedPointer> 48 #include "qiosurfacegraphicsbuffer.h" 49 50 #include <unordered_map> 51 52 QT_BEGIN_NAMESPACE 53 54 class QCocoaBackingStore : public QRasterBackingStore 55 { 56 protected: 57 QCocoaBackingStore(QWindow *window); 58 QCFType<CGColorSpaceRef> colorSpace() const; 59 }; 60 61 class QNSWindowBackingStore : public QCocoaBackingStore 62 { 63 public: 64 QNSWindowBackingStore(QWindow *window); 65 ~QNSWindowBackingStore(); 66 67 void resize(const QSize &size, const QRegion &staticContents) override; 68 void flush(QWindow *, const QRegion &, const QPoint &) override; 69 70 private: 71 bool windowHasUnifiedToolbar() const; 72 QImage::Format format() const override; 73 void redrawRoundedBottomCorners(CGRect) const; 74 }; 75 76 class QCALayerBackingStore : public QObject, public QCocoaBackingStore 77 { 78 Q_OBJECT 79 public: 80 QCALayerBackingStore(QWindow *window); 81 ~QCALayerBackingStore(); 82 83 void resize(const QSize &size, const QRegion &staticContents) override; 84 85 void beginPaint(const QRegion ®ion) override; 86 QPaintDevice *paintDevice() override; 87 void endPaint() override; 88 89 void flush(QWindow *, const QRegion &, const QPoint &) override; 90 #ifndef QT_NO_OPENGL 91 void composeAndFlush(QWindow *window, const QRegion ®ion, const QPoint &offset, 92 QPlatformTextureList *textures, bool translucentBackground) override; 93 #endif 94 95 QImage toImage() const override; 96 QPlatformGraphicsBuffer *graphicsBuffer() const override; 97 98 private: 99 void observeBackingPropertiesChanges(); 100 bool eventFilter(QObject *watched, QEvent *event) override; 101 102 QSize m_requestedSize; 103 QRegion m_paintedRegion; 104 105 class GraphicsBuffer : public QIOSurfaceGraphicsBuffer 106 { 107 public: 108 GraphicsBuffer(const QSize &size, qreal devicePixelRatio, 109 const QPixelFormat &format, QCFType<CGColorSpaceRef> colorSpace); 110 111 QRegion dirtyRegion; // In unscaled coordinates 112 QImage *asImage(); devicePixelRatio()113 qreal devicePixelRatio() const { return m_devicePixelRatio; } 114 115 private: 116 qreal m_devicePixelRatio; 117 QImage m_image; 118 }; 119 120 void ensureBackBuffer(); 121 bool recreateBackBufferIfNeeded(); 122 bool prepareForFlush(); 123 124 void backingPropertiesChanged(); 125 QMacNotificationObserver m_backingPropertiesObserver; 126 127 std::list<std::unique_ptr<GraphicsBuffer>> m_buffers; 128 129 void flushSubWindow(QWindow *window); 130 std::unordered_map<QWindow*, std::unique_ptr<QCALayerBackingStore>> m_subWindowBackingstores; 131 void windowDestroyed(QObject *object); 132 bool m_clearSurfaceOnPaint = true; 133 }; 134 135 QT_END_NAMESPACE 136 137 #endif 138