File indexing completed on 2024-05-19 16:34:46

 /*
     SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "scene/scene.h"
 #include "core/output.h"
 #include "core/renderlayer.h"
 #include "scene/itemrenderer.h"
 
 namespace KWin
 {
 
 SceneDelegate::SceneDelegate(Scene *scene)
     : m_scene(scene)
 {
     m_scene->addDelegate(this);
 }
 
 SceneDelegate::SceneDelegate(Scene *scene, Output *output)
     : m_scene(scene)
     , m_output(output)
 {
     m_scene->addDelegate(this);
 }
 
 SceneDelegate::~SceneDelegate()
 {
     m_scene->removeDelegate(this);
 }
 
 QRegion SceneDelegate::repaints() const
 {
     return m_scene->damage().translated(-viewport().topLeft());
 }
 
 SurfaceItem *SceneDelegate::scanoutCandidate() const
 {
     return m_scene->scanoutCandidate();
 }
 
 void SceneDelegate::prePaint()
 {
     m_scene->prePaint(this);
 }
 
 void SceneDelegate::postPaint()
 {
     m_scene->postPaint();
 }
 
 void SceneDelegate::paint(RenderTarget *renderTarget, const QRegion &region)
 {
     m_scene->paint(renderTarget, region.translated(viewport().topLeft()));
 }
 
 Output *SceneDelegate::output() const
 {
     return m_output;
 }
 
 QRect SceneDelegate::viewport() const
 {
     return m_output ? m_output->geometry() : m_scene->geometry();
 }
 
 Scene::Scene(std::unique_ptr<ItemRenderer> &&renderer)
     : m_renderer(std::move(renderer))
 {
 }
 
 Scene::~Scene()
 {
 }
 
 ItemRenderer *Scene::renderer() const
 {
     return m_renderer.get();
 }
 
 void Scene::addRepaintFull()
 {
     addRepaint(geometry());
 }
 
 void Scene::addRepaint(int x, int y, int width, int height)
 {
     addRepaint(QRegion(x, y, width, height));
 }
 
 void Scene::addRepaint(const QRegion &region)
 {
     for (const auto &delegate : std::as_const(m_delegates)) {
         const QRect viewport = delegate->viewport();
         QRegion dirtyRegion = region & viewport;
         dirtyRegion.translate(-viewport.topLeft());
         if (!dirtyRegion.isEmpty()) {
             delegate->layer()->addRepaint(dirtyRegion);
         }
     }
 }
 
 QRegion Scene::damage() const
 {
     return QRegion();
 }
 
 QRect Scene::geometry() const
 {
     return m_geometry;
 }
 
 void Scene::setGeometry(const QRect &rect)
 {
     if (m_geometry != rect) {
         m_geometry = rect;
         addRepaintFull();
     }
 }
 
 QList<SceneDelegate *> Scene::delegates() const
 {
     return m_delegates;
 }
 
 void Scene::addDelegate(SceneDelegate *delegate)
 {
     m_delegates.append(delegate);
 }
 
 void Scene::removeDelegate(SceneDelegate *delegate)
 {
     m_delegates.removeOne(delegate);
     Q_EMIT delegateRemoved(delegate);
 }
 
 SurfaceItem *Scene::scanoutCandidate() const
 {
     return nullptr;
 }
 
 } // namespace KWin