mirror of
https://github.com/obsproject/obs-studio.git
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107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/******************************************************************************
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Copyright (C) 2025 by Taylor Giampaolo <warchamp7@obsproject.com>
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Lain Bailey <lain@obsproject.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include <obs.hpp>
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#include <QObject>
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#include <QPixmap>
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#include <QPointer>
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#include <QTimer>
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#include <deque>
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#include <functional>
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class ThumbnailItem : public QObject {
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Q_OBJECT
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friend class ThumbnailManager;
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friend class Thumbnail;
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std::string uuid;
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OBSWeakSource weakSource;
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QPixmap pixmap;
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void init(std::weak_ptr<ThumbnailItem> weakActiveItem);
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void imageUpdated(QImage image);
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public:
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ThumbnailItem(std::string uuid, OBSSource source);
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~ThumbnailItem();
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inline bool isNull() const { return !weakSource || obs_weak_source_expired(weakSource); }
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inline const std::string &getUuid() const { return uuid; }
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signals:
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void updateThumbnail(QPixmap pixmap);
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};
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class Thumbnail : public QObject {
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Q_OBJECT
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friend class ThumbnailManager;
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std::shared_ptr<ThumbnailItem> item;
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private slots:
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void thumbnailUpdated(QPixmap pixmap);
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public:
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inline Thumbnail(std::shared_ptr<ThumbnailItem> item) : item(item) {}
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inline QPixmap getPixmap() const { return item->pixmap; }
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static constexpr QSize size = {320, 180};
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signals:
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void updateThumbnail(QPixmap pixmap);
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};
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class ThumbnailManager : public QObject {
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Q_OBJECT
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friend class ThumbnailItem;
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struct CachedItem {
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std::optional<QPixmap> pixmap;
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std::weak_ptr<ThumbnailItem> weakActiveItem;
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};
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std::deque<std::weak_ptr<ThumbnailItem>> newThumbnails;
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std::deque<std::weak_ptr<ThumbnailItem>> thumbnails;
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std::unordered_map<std::string, CachedItem> cachedThumbnails;
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QTimer updateTimer;
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bool updatePixmap(std::shared_ptr<ThumbnailItem> &item);
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void updateTick();
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void updateIntervalChanged(size_t newCount);
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public:
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explicit ThumbnailManager(QObject *parent = nullptr);
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~ThumbnailManager();
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std::shared_ptr<Thumbnail> getThumbnail(OBSSource source);
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std::optional<QPixmap> getCachedThumbnail(OBSSource source);
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void preloadThumbnail(OBSSource source, QObject *object, std::function<void(QPixmap)> callback);
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private:
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Q_DISABLE_COPY_MOVE(ThumbnailManager);
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};
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