File indexing completed on 2024-05-19 05:32:25

 /*
     SPDX-FileCopyrightText: 2011 Martin Gräßlin <mgraesslin@kde.org>
     SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include <QQuickItem>
 #include <QUuid>
 
 #include <epoxy/gl.h>
 
 namespace KWin
 {
 class Window;
 class GLFramebuffer;
 class GLTexture;
 class ThumbnailTextureProvider;
 class WindowThumbnailSource;
 
 class WindowThumbnailSource : public QObject
 {
     Q_OBJECT
 
 public:
     WindowThumbnailSource(QQuickWindow *view, Window *handle);
     ~WindowThumbnailSource() override;
 
     static std::shared_ptr<WindowThumbnailSource> getOrCreate(QQuickWindow *window, Window *handle);
 
     struct Frame
     {
         std::shared_ptr<GLTexture> texture;
         GLsync fence;
     };
 
     Frame acquire();
 
 Q_SIGNALS:
     void changed();
 
 private:
     void update();
 
     QPointer<QQuickWindow> m_view;
     QPointer<Window> m_handle;
 
     std::shared_ptr<GLTexture> m_offscreenTexture;
     std::unique_ptr<GLFramebuffer> m_offscreenTarget;
     GLsync m_acquireFence = 0;
     bool m_dirty = true;
 };
 
 class WindowThumbnailItem : public QQuickItem
 {
     Q_OBJECT
     Q_PROPERTY(QUuid wId READ wId WRITE setWId NOTIFY wIdChanged)
     Q_PROPERTY(KWin::Window *client READ client WRITE setClient NOTIFY clientChanged)
 
 public:
     explicit WindowThumbnailItem(QQuickItem *parent = nullptr);
     ~WindowThumbnailItem() override;
 
     QUuid wId() const;
     void setWId(const QUuid &wId);
 
     Window *client() const;
     void setClient(Window *client);
 
     QSGTextureProvider *textureProvider() const override;
     bool isTextureProvider() const override;
     QSGNode *updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *) override;
 
 protected:
     void releaseResources() override;
     void itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value) override;
 
 Q_SIGNALS:
     void wIdChanged();
     void clientChanged();
 
 private:
     QImage fallbackImage() const;
     QRectF paintedRect() const;
     void updateImplicitSize();
     void updateSource();
     void resetSource();
 
     QUuid m_wId;
     QPointer<Window> m_client;
 
     mutable ThumbnailTextureProvider *m_provider = nullptr;
     std::shared_ptr<WindowThumbnailSource> m_source;
 };
 
 } // namespace KWin