Qt项目-安防监控系统(MVC设计模式)

目录

MVC设计模式-界面数据分开处理

数据库查看：设置信息 视频信息 图片信息

8.SetControl.h .cpp

9.SetModel.h .cpp

10.VideoControl.h .cpp

11.VideoModel.h .cpp

12.ImageControl.h .cpp

13.ImageModel.h .cpp

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MVC设计模式-界面数据分开处理

数据库查看：设置信息 视频信息 图片信息

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8.SetControl.h .cpp

#ifndef SETCONTROL_H
#define SETCONTROL_H

#include <QString>
#include "setmodel.h"//设置模型层

class SetControl
{
public:
    static SetControl *getInstance();//外部公共接口--获取control对象
    int doSet(QString Video_path,QString Image_path,int framecount,QString cameraName);//第一次设置参数存储到数据库
    QString getSetting_videopath();//获取设置信息视频保存路径
    QString getSetting_imagepath();//获取设置信息图片保存路径
    int getSetting_interval();//获取设置信息视频间隔
    int getSetting();//获取设置信息，用于判断是否有设置过
    int updateSetting(QString Video_path, QString Image_path, int framecount, QString cameraName);//更新设置信息
private:
    SetControl();//构造私有化
    static SetControl *contorl;//静态私成员变量
};

#endif // SETCONTROL_H

#include "setcontrol.h"

SetControl *SetControl::contorl=nullptr;

SetControl::SetControl(){}

//外部公共接口 获取control对象
SetControl *SetControl::getInstance()
{
    if(SetControl::contorl=nullptr)
    {
        SetControl::contorl=new SetControl();
    }
    return SetControl::contorl;
}

//第一次设置参数存储到数据库
int SetControl::doSet(QString Video_path,QString Image_path,int framecount,QString cameraName)
{
    return SetModel::getInstance()->addSetting(Video_path,Image_path,framecount,cameraName);
}

//获取视频路径
QString SetControl::getSetting_videopath()
{
    QString videopath;
    SetModel::getInstance()->getSetting_videopath(videopath);
    return videopath;
}

//获取设置信息图片路径
QString SetControl::getSetting_imagepath()
{
    QString imagepath;
    SetModel::getInstance()->getSetting_imagepath(imagepath);
    return imagepath;
}

//获取视频录制时长
int SetControl::getSetting_interval()
{
    return SetModel::getInstance()->getSetting_interval();
}

//获取设置信息，用于判断是否有设置过
int SetControl::getSetting()
{
    return SetModel::getInstance()->getSetting();
}

//更新设置信息
int SetControl::updateSetting(QString Video_path, QString Image_path, int framecount, QString cameraName)
{
    return SetModel::getInstance()->updateSetting(Video_path,Image_path,framecount,cameraName);
}

9.SetModel.h .cpp

#ifndef SETMODEL_H
#define SETMODEL_H

#include "singeldb.h"//数据库
#include <iostream>
#include <QString>//字符串
#include <qDebug>//测试

class SetModel
{
public:
    static SetModel *getInstance();//外部公共接口 获取model对象
    int addSetting(QString Video_path,QString Image_path,int framecount,QString cameraName);//添加设置信息
    int updateSetting(QString Video_path,QString Image_path,int framecount,QString cameraName);//更新设置信息
    int getSetting();//获取设置信息
    void getSetting_videopath(QString &videopath);//获取设置信息视频保存路径
    void getSetting_imagepath(QString &imagpath);//获取设置信息图片保存路径
    int getSetting_interval();//获取设置信息视频间隔
private:
    SetModel();//构造私有化
    static SetModel *moder;//静态私成员变量
    sqlite3 *sqldb;//数据库
    char *errmsg;//用来存储错误信息字符串
};

#endif // SETMODEL_H

#include "setmodel.h"

SetModel *SetModel::moder =nullptr;

SetModel::SetModel(){}

//外部公共接口 获取model对象
SetModel *SetModel::getInstance()
{
    if(SetModel::moder==nullptr)
    {
        SetModel::moder=new SetModel;
    }
    return SetModel::moder;
}

//添加设置信息
int SetModel::addSetting(QString Video_path, QString Image_path, int framecount, QString cameraName)
{
    char sql[256];
    sprintf(sql,"insert into setting(video_path,image_path,interval,camera_name)values('%s','%s','%d','%s');",
            Video_path.toStdString().c_str(),Image_path.toStdString().c_str(),
            framecount,cameraName.toStdString().c_str());
    char **qres;
    int row,col;
    return SingelDB::getInstance()->dosql(sql,qres,row,col);
}

//更新设置信息
//返回值0代表更新成功，1代表失败
int SetModel::updateSetting(QString Video_path, QString Image_path, int framecount, QString cameraName)
{
    char sql[256];
    char **qres;
    int row,col;
    sprintf(sql,"update setting set video_path='%s',image_path='%s',interval='%d',camera_name='%s' where set_id=1;",
            Video_path.toStdString().c_str(),Image_path.toStdString().c_str(),framecount,cameraName.toStdString().c_str());
    return SingelDB::getInstance()->dosql(sql,qres,row,col);
}

//获取设置信息
//0表示dosql没有数据，大于0 表示有数据，-1执行失败
int SetModel::getSetting()
{
    char sql[256] = "select * from setting";
    char **qres;
    int col,row;
    int res = SingelDB::getInstance()->dosql(sql,qres,row,col);
    if(res == 0)
    {
        return row;
    }
    return -1;
}

//获取设置信息视频保存路径
void SetModel::getSetting_videopath(QString &videopath)
{
    char sql[256] = "select video_path from setting where set_id=1;";
    char **qres;
    int col,row;
    //将sql语句换成sqlite3可以识别的语句，返回指针到stmt
    int res = SingelDB::getInstance()->dosql(sql,qres,row,col);
    if(res == SQLITE_OK)
    {
        if(row==0)
        {
            return;//没有数据
        }
        videopath = QString(QLatin1String(qres[1]));
    }
}

//获取设置信息图片保存路径
void SetModel::getSetting_imagepath(QString &imagepath)
{
    char sql[256] = "select image_path from setting where set_id=1;";
    char **qres;
    int col,row;
    int res = SingelDB::getInstance()->dosql(sql,qres,row,col);
    if(res == SQLITE_OK)
    {
        if(row==0)
        {
            return;//没有数据
        }
        imagepath = QString(QLatin1String(qres[1]));
    }
}

//获取设置信息视频间隔
int SetModel::getSetting_interval()
{
    char sql[256] = "select interval from setting where set_id=1;";
    char **qres;
    int col,row;
    int res = SingelDB::getInstance()->dosql(sql,qres,row,col);
    if(res == SQLITE_OK)
    {
        if(row==0)
        {
            return 1;//没有数据
        }
        return atoi(qres[1]);
    }
    return -1;
}

10.VideoControl.h .cpp

#ifndef VIDEOCONTROL_H
#define VIDEOCONTROL_H

#include <QString>
#include "videomodel.h"//视频控制层

class VideoControl
{
public:
    static VideoControl *getInstance();//外部公共接口--获取control对象
    int addVideoPath(QString video_name, QString cover_path, QString video_path);//从model层添加图片信息
    char **getVideoPath();//从model层获取多个视频路径和视频名称---视频列表显示
    char **getVideo(QString name);//从model层获取指定视频路径---视频播放
    char **calendar_query(QString date);//从model层日历查询视频信息
    char **getLastvideo();//从model层获取最后一个视频路径
private:
    VideoControl();//构造私有化
    static VideoControl *contorl;//静态私成员变量
};

#endif // VIDEOCONTROL_H

#include "videocontrol.h"

VideoControl *VideoControl::contorl=nullptr;

VideoControl::VideoControl(){}

//外部公共接口 获取control对象
VideoControl *VideoControl::getInstance()
{
    if(VideoControl::contorl=nullptr)
    {
        VideoControl::contorl=new VideoControl();
    }
    return VideoControl::contorl;
}

//从model层添加视频信息
int VideoControl::addVideoPath(QString video_name, QString cover_path, QString video_path)
{
    return VideoModel::getInstance()->addVideoPath(video_name,cover_path,video_path);
}

//从model层获取多个视频路径和视频名称---视频列表显示
char **VideoControl::getVideoPath()
{
    return VideoModel::getInstance()->getVideoPath();
}

//从model层获取指定视频路径---视频播放
char **VideoControl::getVideo(QString name)
{
    return VideoModel::getInstance()->getVideo(name);
}

//从model层日历查询视频信息
char **VideoControl::calendar_query(QString date)
{
    return VideoModel::getInstance()->calendar_query(date);
}

//从model层获取最后一个视频路径
char **VideoControl::getLastvideo()
{
    return VideoModel::getInstance()->getLastvideo();
}

11.VideoModel.h .cpp

#ifndef VIDEOMODEL_H
#define VIDEOMODEL_H

#include "singeldb.h"//数据库
#include <iostream>
#include <QString>//字符串

class VideoModel
{
public:
    static VideoModel *getInstance();//外部公共接口---获取model对象
    int addVideoPath(QString video_name, QString cover_path, QString video_path);//添加图片信息
    char **getVideoPath();//获取多个视频路径和视频名称---视频列表显示
    char **getVideo(QString name);//获取指定视频路径---视频播放
    char **calendar_query(QString date);//日历查询视频信息
    char **getLastvideo();//获取最后一个视频路径
    static int row,col;
private:
    VideoModel();//构造私有化
    static VideoModel *moder;//静态私成员变量
    sqlite3 *sqldb;//数据库
    char *errmsg;//用来存储错误信息字符串
};

#endif // VIDEOMODEL_H

#include "videomodel.h"

VideoModel *VideoModel::moder =nullptr;

int VideoModel::row=0;
int VideoModel::col=0;

VideoModel::VideoModel(){}

//外部公共接口 获取model对象
VideoModel *VideoModel::getInstance()
{
    if(VideoModel::moder==nullptr)
    {
        VideoModel::moder=new VideoModel;
    }
    return VideoModel::moder;
}

//添加视频信息
int VideoModel::addVideoPath(QString video_name, QString cover_path, QString video_path)
{
    char sql[256];
    sprintf(sql,"insert into video(video_name,cover_path,video_path)values('%s','%s','%s');",
            video_name.toStdString().c_str(),cover_path.toStdString().c_str(),video_path.toStdString().c_str());
    char **qres;
    int row,col;
    return SingelDB::getInstance()->dosql(sql,qres,row,col);
}

//获取多个视频路径和视频名称---视频列表显示
char **VideoModel::getVideoPath()
{
    char sql[256];
    sprintf(sql,"select video_name,cover_path from video;");
    char **qres;
    SingelDB::getInstance()->dosql(sql,qres,row,col);
    return qres;
}

//获取指定视频路径---视频播放
char **VideoModel::getVideo(QString name)
{
    char sql[256];
    sprintf(sql,"select video_path from video where video_name = '%s' ;",name.toStdString().c_str());
    char **qres;
    int row,col;
    SingelDB::getInstance()->dosql(sql,qres,row,col);
    return qres;
}

//日历查询视频信息
char **VideoModel::calendar_query(QString date)
{
    char sql[256];
    sprintf(sql,"select video_name,cover_path from video where video_name like '%s%';",date.toStdString().c_str());
    char **qres;
    SingelDB::getInstance()->dosql(sql,qres,row,col);
    return qres;
}

//获取最后一个视频路径
char **VideoModel::getLastvideo()
{
    char sql[256];
    sprintf(sql,"select video_path from video order by video_id desc limit 1;");
    char **qres;
    int row,col;
    SingelDB::getInstance()->dosql(sql,qres,row,col);
    return qres;
}

12.ImageControl.h .cpp

#ifndef IMAGECONTROL_H
#define IMAGECONTROL_H

#include <QString>//字符串
#include "imagemodel.h"//图像模型层

class ImageControl
{
public:
//  ImageControl();
    static ImageControl *getInstance();//外部公共接口----获取control对象
    int addImagePath(QString video_name, QString cover_path);//从control层添加图片路径到数据库----截图
    char **getImagePath(int num);//从control层获取数据库中的图片路径----照片列表设置
    char **getimage(QString name);//从control层获取数据库中的图片路径----照片放大相关操作
private:
    ImageControl();//构造函数私有化
    static ImageControl *contorl;//静态私有的成员变量
};

#endif // IMAGECONTROL_H

#include "imagecontrol.h"

ImageControl *ImageControl::contorl=nullptr;

ImageControl::ImageControl()
{
}

//外部公共接口 获取control对象
ImageControl *ImageControl::getInstance()
{
    if(ImageControl::contorl=nullptr)
    {
        ImageControl::contorl=new ImageControl();
    }
    return ImageControl::contorl;
}

//从control层添加图片路径到数据库----截图
int ImageControl::addImagePath(QString video_name, QString cover_path)
{
    return ImageModel::getInstance()->addImagePath(video_name,cover_path);
}

//从control层获取数据库中的图片路径----照片列表设置
char **ImageControl::getImagePath(int num)
{
    return ImageModel::getInstance()->getImagePath(num);
}

//从control层获取数据库中的图片路径----照片放大相关操作
char **ImageControl::getimage(QString name)
{
    return ImageModel::getInstance()->getimage(name);
}

13.ImageModel.h .cpp

#ifndef IMAGEMODEL_H
#define IMAGEMODEL_H
#include "singeldb.h"//数据库
#include <iostream>
#include <QString>//字符串

class ImageModel
{
public:
//  ImageModel();
    static ImageModel *getInstance();//外部公共接口 获取model对象
    int addImagePath(QString video_name, QString cover_path);//添加设置信息----截图
    char **getImagePath(int num);//获取多个图片路径----要求9个为一组
    char **getimage(QString name);//获取图片路径
    static int row,col;
private:
    ImageModel();//构造私有化
    static ImageModel *moder;//静态私成员变量
    sqlite3 *sqldb;//数据库
    char *errmsg;//用来存储错误信息字符串
};

#endif // IMAGEMODEL_H

#include "imagemodel.h"

//ImageModel::ImageModel()
//{
//}

ImageModel *ImageModel::moder =nullptr;

int ImageModel::row=0;
int ImageModel::col=0;

ImageModel::ImageModel()
{
}

//外部公共接口 获取model对象
ImageModel *ImageModel::getInstance()
{
    if(ImageModel::moder==nullptr)
    {
        ImageModel::moder=new ImageModel;
    }
    return ImageModel::moder;
}

//添加设置信息--截图
int ImageModel::addImagePath(QString video_name, QString cover_path)
{
    char sql[256];
    sprintf(sql,"insert into image(image_name,image_path)values('%s','%s');",
            video_name.toStdString().c_str(),cover_path.toStdString().c_str());
    char **qres;
    int row,col;
    return SingelDB::getInstance()->dosql(sql,qres,row,col);
}

//获取多个图片路径 要求9个为一组
char **ImageModel::getImagePath(int num)
{
    char sql[256];
    sprintf(sql,"select image_path,image_name from image limit 9 offset (%d-1)*9;",num);
    char **qres;
    //int row,col;
    SingelDB::getInstance()->dosql(sql,qres,row,col);//执行sql语句
    return qres;
}

//获取图片路径
char **ImageModel::getimage(QString name)
{
    char sql[256];
    sprintf(sql,"select image_path from image where image_name = '%s';",name.toStdString().c_str());
    char **qres;
    int row,col;
    SingelDB::getInstance()->dosql(sql,qres,row,col);//执行sql语句
    return qres;
}