bcd9f1e958
Our logical co-ordinates for shape can be floating. The shape is used to determine final vertices on screen. The commit appears to introduce some new loops but they're mostly what QRegion would be doing internally so it shouldn't impact performance. For most cases we just have a single rectangle in our shape anyway. opaqueRegion is unchanged for now.
106 lines
2.3 KiB
C++
106 lines
2.3 KiB
C++
/*
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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 "item.h"
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namespace KDecoration2
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{
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class Decoration;
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}
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namespace KWin
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{
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class Window;
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class Deleted;
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namespace Decoration
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{
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class DecoratedClientImpl;
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}
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class KWIN_EXPORT DecorationRenderer : public QObject
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{
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Q_OBJECT
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public:
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virtual void render(const QRegion ®ion) = 0;
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void invalidate();
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// TODO: Move damage tracking inside DecorationItem.
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QRegion damage() const;
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void addDamage(const QRegion ®ion);
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void resetDamage();
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qreal effectiveDevicePixelRatio() const;
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qreal devicePixelRatio() const;
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void setDevicePixelRatio(qreal dpr);
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// Reserve some space for padding. We pad decoration parts to avoid texture bleeding.
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static const int TexturePad = 1;
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Q_SIGNALS:
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void damaged(const QRegion ®ion);
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protected:
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explicit DecorationRenderer(Decoration::DecoratedClientImpl *client);
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Decoration::DecoratedClientImpl *client() const;
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bool areImageSizesDirty() const
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{
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return m_imageSizesDirty;
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}
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void resetImageSizesDirty()
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{
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m_imageSizesDirty = false;
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}
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QImage renderToImage(const QRect &geo);
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void renderToPainter(QPainter *painter, const QRect &rect);
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private:
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QPointer<Decoration::DecoratedClientImpl> m_client;
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QRegion m_damage;
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qreal m_devicePixelRatio = 1;
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bool m_imageSizesDirty;
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};
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/**
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* The DecorationItem class represents a server-side decoration.
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*/
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class KWIN_EXPORT DecorationItem : public Item
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{
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Q_OBJECT
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public:
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explicit DecorationItem(KDecoration2::Decoration *decoration, Window *window, Item *parent = nullptr);
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DecorationRenderer *renderer() const;
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Window *window() const;
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QVector<QRectF> shape() const override final;
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QRegion opaque() const override final;
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private Q_SLOTS:
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void handleFrameGeometryChanged();
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void handleWindowClosed(Window *original, Deleted *deleted);
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void handleOutputChanged();
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void handleOutputScaleChanged();
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protected:
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void preprocess() override;
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WindowQuadList buildQuads() const override;
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private:
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Window *m_window;
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QPointer<Output> m_output;
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QPointer<KDecoration2::Decoration> m_decoration;
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std::unique_ptr<DecorationRenderer> m_renderer;
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};
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} // namespace KWin
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