#ifndef DISPLAYWIND_H
#define DISPLAYWIND_H

#include <QWidget>
#include <QMutex>
#include "ijkmediaplayer.h"
#include "imagescaler.h"
#include <QKeyEvent>
#include <QBoxLayout>
#include <QMouseEvent>

namespace Ui {
class DisplayWind;
}

class DisplayWind : public QWidget
{
    Q_OBJECT

public:
    explicit DisplayWind(QWidget *parent = 0);
    ~DisplayWind();
    int Draw(const Frame *frame);
    void DeInit();
    void StartPlay();
    void StopPlay();

signals:
    void signalFullScreenChanged();

public slots:
    void onToggleFullScreen(bool full);
protected:
    // 这里不要重载event事件，会导致paintEvent不被触发
    void paintEvent(QPaintEvent *) override;
    void resizeEvent(QResizeEvent *event) override;
    void keyPressEvent(QKeyEvent* event) override;

private:
    void enterFullScreen();
    void exitFullScreen();
private:
    Ui::DisplayWind *ui;

    int m_nLastFrameWidth; ///< 记录视频宽高
    int m_nLastFrameHeight;
    bool is_display_size_change_ = false;

    int x_ = 0; //  起始位置
    int y_ = 0;
    int video_width = 0;
    int video_height = 0;
    int img_width = 0;
    int img_height = 0;
    int win_width_ = 0;
    int win_height_ = 0;
    bool req_resize_ = false;
    QImage img;
    VideoFrame dst_video_frame_;
    QMutex m_mutex;
    ImageScaler *img_scaler_ = NULL;

    // 全屏
    bool bIsFull_ = false;
    QWidget* stParentWidget_ = nullptr;
    QBoxLayout* stParentLayout_ = nullptr;
    int nParentLayoutIndex_ = 0;
    QRect stOriginalGeometry_;
    int nWinWidthBack_ = 0;
    int nWinHeightBack_ = 0;

    int play_state_ = 0;    // 0 初始化状态; 1 播放状态; 2 停止状态
};

#endif // DISPLAYWIND_H