thumbnail.hpp

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//
// Created by ColorsWind on 2022/5/10.
//
 
#pragma once
 
#include <QQmlContext>
#include "fireworks.hpp"
#include "hurricane.hpp"
#include "preview.hpp"
 
class Thumbnail : public Fireworks {
    Q_OBJECT
    QML_ELEMENT
    Q_PROPERTY(QString player READ getPlayer WRITE setPlayer)
private:
    Preview *preview;
    QString m_player;
    Hurricane *hurricane = nullptr;
public:
    Thumbnail(QQuickItem *parent= nullptr) : Fireworks(parent) {
        preview = new Preview(this);
        connect(this, &Thumbnail::signalPreviewRequest, preview, &Preview::previewRequest);
        connect(this, &QQuickItem::windowChanged, [this](QQuickWindow *window){
            if (!window) { return; }
            auto *context = qmlContext(this);
            while(!hurricane && context) {
                hurricane = reinterpret_cast<Hurricane *>(context->objectForName(m_player));
                context = context->parentContext();
            }
            if (!hurricane) {
                throw std::runtime_error("Cannot not get Hurricane by id:" + m_player.toStdString());
            }
            connect(hurricane, &Hurricane::signalOpenFile, preview, &Preview::openFile);
            connect(hurricane, &Hurricane::signalClose, preview, &Preview::close);
            connect(preview, &Preview::previewResponse, this, &Thumbnail::slotPreviewResponse);
        });
    }
 
    [[nodiscard]] const QString &getPlayer() const {
        return m_player;
    }
 
    void setPlayer(const QString &player) {
        Thumbnail::m_player = player;
        qDebug() << "Set" << player;
    }
 
    virtual ~Thumbnail() override {
        preview->close();
        preview->deleteLater();
    }
public slots:
 
    Q_INVOKABLE void previewRequest(qreal pos) {
        emit signalPreviewRequest(pos, QPrivateSignal());
    }
private slots:
    void slotPreviewResponse(qreal pos, const VideoFrameRef& frame) {
//        setVisible(false);
        setVideoFrame(frame);
        emit previewResponse(pos, QPrivateSignal());
    };
signals:
    void previewResponse(qreal pos, QPrivateSignal);
 
    void signalPreviewRequest(qreal pos, QPrivateSignal);
 
};