RecordControlApplication/Widget.h

#ifndef WIDG_H
#define WIDG_H

#include "Channel.h"
#include "Menu.h"
#include "TimeSlider.h"
#include <QDir>
#include <QMap>
#include <QTimer>
#include <QWidget>

namespace Ui {
class Widget;
}

class Widget : public QWidget {
    Q_OBJECT
public:
    explicit Widget(QWidget* parent = 0);
    ~Widget();

signals:
    void needPlayVideo(QString types);

public slots:
    void update();

    void onProgressTimeout();
    void onPlayEnd();
    void onShowRecordLabel(bool show);
    void onAppendVideo();

    // 按键操作。上下左右确认返回
    void onBtnMenuClicked();
    void onBtnUpClicked();
    void onBtnDownClicked();
    void onBtnLeftClicked();
    void onBtnRightClicked();
    void onBtnConfirmClicked();
    void onBtnReturnClicked();
    void onBtnVolumnUpClicked();
    void onBtnVolumnDownClicked();

    // 播放视频
    void onBtnPlaybackClicked(QVariantMap params, int segmentIndex);

    // 分辨率更改
    void onResolutionOutAChanged(int resolution);
    void onResolutionOutBChanged(int resolution);

    void onResolutionInAChanged(int width, int height);
    void onResolutionInBChanged(int width, int height);

private:
    Ui::Widget* ui;

    Menu* menu; // 菜单指针

    bool isPlayback = false; // 是否在回放
    QTimer* progressTimer; // 查询播放进度的定时器
    QList<TimeSlider::TimeSegment> segments; // 当天回放的时间段
    int curSegmentIndex = 0; // 当前回放的时间段
    QVariantMap playbackParams; // 回放参数(通道和时间)

private:
    void seek(QString type);
    void playOneChannel(QString filename);
    void playTwoChannels(QString filename);
    void playNextSegemnt();
    void playPreSegment();
    Channel* findChannelByName(QString name);
};

#endif // WIDG_H