95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
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/*
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SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#pragma once
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#include "kwin_export.h"
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#include <QMap>
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#include <QObject>
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#include <QRegion>
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namespace KWin
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{
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class OutputLayer;
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class RenderLayerDelegate;
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class RenderLoop;
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/**
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* The RenderLayer class represents a composited layer.
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*
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* The contents of the layer is represented by the RenderLayerDelegate. The render layer
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* takes the ownership of the delegate.
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*
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* Each render layer has a hardware layer assigned to it, represented by OutputLayer. If
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* the output layer is not set explicitly, it's inherited from the parent render layer.
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* Output layers can be freely assigned or unassigned to render layers.
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*/
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class KWIN_EXPORT RenderLayer : public QObject
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{
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Q_OBJECT
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public:
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explicit RenderLayer(RenderLoop *loop, RenderLayer *superlayer = nullptr);
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~RenderLayer() override;
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OutputLayer *outputLayer() const;
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void setOutputLayer(OutputLayer *layer);
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RenderLoop *loop() const;
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RenderLayerDelegate *delegate() const;
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void setDelegate(RenderLayerDelegate *delegate);
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QList<RenderLayer *> sublayers() const;
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RenderLayer *superlayer() const;
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void setSuperlayer(RenderLayer *layer);
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bool isVisible() const;
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void setVisible(bool visible);
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QPoint mapToGlobal(const QPoint &point) const;
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QRegion mapToGlobal(const QRegion ®ion) const;
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QRect mapToGlobal(const QRect &rect) const;
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QPoint mapFromGlobal(const QPoint &point) const;
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QRegion mapFromGlobal(const QRegion ®ion) const;
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QRect mapFromGlobal(const QRect &rect) const;
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QRect rect() const;
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QRect boundingRect() const;
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QRect geometry() const;
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void setGeometry(const QRect &rect);
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void addRepaint(const QRegion ®ion);
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void addRepaint(const QRect &rect);
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void addRepaint(int x, int y, int width, int height);
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void addRepaintFull();
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QRegion repaints() const;
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void resetRepaints();
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private:
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void addSublayer(RenderLayer *sublayer);
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void removeSublayer(RenderLayer *sublayer);
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void updateBoundingRect();
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void updateEffectiveVisibility();
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bool computeEffectiveVisibility() const;
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RenderLoop *m_loop;
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QScopedPointer<RenderLayerDelegate> m_delegate;
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QRegion m_repaints;
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QRect m_boundingRect;
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QRect m_geometry;
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OutputLayer *m_outputLayer = nullptr;
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RenderLayer *m_superlayer = nullptr;
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QList<RenderLayer *> m_sublayers;
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bool m_effectiveVisible = true;
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bool m_explicitVisible = true;
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};
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} // namespace KWin
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