File indexing completed on 2024-05-12 05:32:08

 /*
     SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include "scene/item.h"
 
 namespace KWin
 {
 
 class Shadow;
 class Window;
 
 class KWIN_EXPORT ShadowTextureProvider
 {
 public:
     explicit ShadowTextureProvider(Shadow *shadow);
     virtual ~ShadowTextureProvider();
 
     Shadow *shadow() const { return m_shadow; }
 
     virtual void update() = 0;
 
 protected:
     Shadow *m_shadow;
 };
 
 /**
  * The ShadowItem class represents a nine-tile patch server-side drop-shadow.
  */
 class KWIN_EXPORT ShadowItem : public Item
 {
     Q_OBJECT
 
 public:
     explicit ShadowItem(Shadow *shadow, Window *window, Scene *scene, Item *parent = nullptr);
     ~ShadowItem() override;
 
     Shadow *shadow() const;
     ShadowTextureProvider *textureProvider() const;
 
 protected:
     WindowQuadList buildQuads() const override;
     void preprocess() override;
 
 private Q_SLOTS:
     void handleTextureChanged();
     void updateGeometry();
 
 private:
     Window *m_window;
     Shadow *m_shadow = nullptr;
     std::unique_ptr<ShadowTextureProvider> m_textureProvider;
     bool m_textureDirty = true;
 };
 
 } // namespace KWin