基于QT Creator的AddressBook

addressbook.cpp

#include "addressbook.h"
#include "ui_addressbook.h"

AddressBook::AddressBook(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::AddressBook)
{
    ui->setupUi(this);
}

AddressBook::~AddressBook()
{
    delete ui;
}

void AddressBook::ReadFromFile()
{
    QFile file("chenhc.txt");

    if(!file.open(QIODevice::ReadWrite |QIODevice::Text))
        qDebug() << file.errorString();
    QTextStream in(&file);

	//record类的成员变量数
    int rcd_num = 5;

    while(1)
    {
        QString str[rcd_num];
        for(int i = 0; i < rcd_num; ++i)
        {
            str[i] = in.readLine();
        }
		
		//读取到的字符串长度为零，读取完毕
        if(str[rcd_num-1].size() == 0) break;

		//将新构造的record对象放入vector中
        records.push_back(Record(str[0], str[1], str[2], str[3], str[4]));
    }

    file.close();
}

void AddressBook::SaveToFile()
{
    QFile file("chenhc.txt");

        if(!file.open(QIODevice::WriteOnly |QIODevice::Text))
            qDebug() << file.errorString();
        QTextStream in(&file);

		//将记录信息按照格式以文件流的形式输出到文件中
        for(int i = 0; i < records.size(); ++i)
        {
            in << records[i].name << "\n"
               << records[i].phone_num << "\n"
               << records[i].relation << "\n"
               << records[i].province << "\n"
               << records[i].city << "\n";
        }

        file.close();
}

//获取目标记录函数，以引用的形式返回，将所有目标record的索引放入vector中，idx中存储用户所选择的索引
bool AddressBook::GetTargetRcd(vector &id, int &idx)
{
    bool ok;

	//从输入窗口中读取关键字
    QString keywords = QInputDialog::getText(this, tr("Processing..."), tr("Key Words: "),
            QLineEdit::Normal, tr("ChenHC"), &ok);
	//读取失败直接退出
    if(!ok) return false;

	//转化为string
    string SrchStr = keywords.toStdString();

    QString DisplyStr;

    int cnt = 0;

    //find those records, and store their id
    for(int i = 0; i < records.size(); ++i)
    {
		//进行按关键字的查找比较
        if((signed)records[i].name.toStdString().find(SrchStr) != -1
        || (signed)records[i].phone_num.toStdString().find(SrchStr) != -1
        || (signed)records[i].relation.toStdString().find(SrchStr) != -1
        || (signed)records[i].province.toStdString().find(SrchStr) != -1
        || (signed)records[i].city.toStdString().find(SrchStr) != -1)
        {
            id.push_back(i);

            //transform int to char *
            char num[105];
            sprintf(num, "%d.\n", ++cnt);
			
			
			//将记录信息链接成一个字符串输出
            DisplyStr += QString(num) + "Name: " + records[i].name + '\n';
            DisplyStr += "PhoneNum: " + records[i].phone_num + '\n';
            DisplyStr += "Relation: " + records[i].relation + "\n";
            DisplyStr += "Province: " + records[i].province + "\n";
            DisplyStr += "City: " + records[i].city + "\n\n";
        }
    }
    DisplyStr += "Please input the index:";

	//没有匹配的record，弹出warning窗口
    if(id.size() < 1)
    {
        QMessageBox::warning(this, tr("Warning"), tr("Your input is error!"),QMessageBox::Abort);
        return false;
    }
	
	//读取用户输入索引
    QString Idx = QInputDialog::getText(this, tr("Processing..."), tr(DisplyStr.toStdString().c_str()),
            QLineEdit::Normal, tr("1"), &ok);
    if(!ok) return false;
    idx = Idx.toInt();

    //do for error input
    if(!(1 <= idx && idx <= (int)id.size()))
    {
        QMessageBox::warning(this, tr("Warning!"), tr("Your input is error!"),QMessageBox::Abort);
        return false;
    }

    return true;
}

bool AddressBook::GetNewRcd(Record &newrcd)
{
    bool ok;

    //add_name
    QString name = QInputDialog::getText(this, tr("Processing..."), tr("Name: "),
            QLineEdit::Normal, tr("ChenHC"), &ok);
    if(!ok) return false;

    //add_phone_number
    there:
    QString PhoneNum = QInputDialog::getText(this, tr("Processing..."), tr("Phone Number: "),
            QLineEdit::Normal, tr("110"), &ok);
    bool check = true;
    for(int i = 0; i < PhoneNum.size(); ++i)
        if(!isdigit(PhoneNum.toStdString()[i])) check = false;
    if(!check)
    {
        QMessageBox::warning(this, tr("Warning"), tr("Your input is not number!"),QMessageBox::Abort);
        goto there;
        //return false;
    }

    if(!ok) return false;

    //add_relation
    QStringList RelaList;
    RelaList << tr("Relative") << tr("Classmate") << tr("Acquaintance") << tr("Others");
    QString rela = QInputDialog::getItem(this, tr ("Processing..."), tr("Relation："), RelaList, 0, false, &ok);
    if(!ok) return false;

    //add_province
    QString prov = QInputDialog::getText(this, tr("Processing..."), tr("Province: "),
            QLineEdit::Normal, tr("Zhejiang"), &ok);
    if(!ok) return false;

    //add_city
    QString cit = QInputDialog::getText(this, tr("Processing..."), tr("City: "),
            QLineEdit::Normal, tr("Jinhua"), &ok);
    if(!ok) return false;

    newrcd = Record(name, PhoneNum, rela, prov, cit);

    return true;
}

//Add按钮槽函数
void AddressBook::on_AddBtn_clicked()
{

    Record newrcd;
	//读取新纪录
    bool ok = GetNewRcd(newrcd);

    if(!ok) return;

    records.push_back(newrcd);

	//弹出提示成功读取的窗口
    QMessageBox::information(this, tr("Result"), tr("Success!"),QMessageBox::Ok);

	//把改变后的记录存文件
    SaveToFile();
}

//Delete按钮槽函数
void AddressBook::on_DelBtn_clicked()
{
    vector id;
    int idx;

	//获取目标记录函数，以引用的形式返回，将所有目标record的索引放入vector中，idx中存储用户所选择的索引
    bool ok = GetTargetRcd(id, idx);

    if(!ok) return;

	//删除用户所选择的记录
    records.erase(records.begin() + id[idx-1]);
	
	//弹出提示成功删除的窗口
    QMessageBox::information(this, tr("Result"), tr("Success!"),QMessageBox::Ok);

    SaveToFile();
}

//Display按钮槽函数
void AddressBook::on_DisplayBtn_clicked()
{
    QString DisplyStr;

	//记录按姓名字典序排序
    sort(records.begin(), records.end());
	//存文件
    SaveToFile();
	
	//链接所有的record信息
    int cnt = 0;
    for(int i = 0; i < records.size(); ++i, ++cnt)
    {
        DisplyStr += "Name: " + records[i].name + '\n';
        DisplyStr += "PhoneNum: " + records[i].phone_num + '\n';
        DisplyStr += "Relation: " + records[i].relation + "\n";
        DisplyStr += "Province: " + records[i].province + "\n";
        DisplyStr += "City: " + records[i].city + "\n\n";
    }

    //deal with plural
    QString s;
    if(cnt > 1) s = "s";

    char num[105];
    sprintf(num, "%d ", cnt);
	
	//输出结果到界面上
    DisplyStr = "There are " + QString(num) + "Record" + s + '\n' + DisplyStr;
    ui->DisplayEdit->setPlainText(DisplyStr);
}

//Modify按钮槽函数
void AddressBook::on_ModifyBtn_clicked()
{
    vector id;
    int idx;
	
	//以引用的形式返回，将所有目标record的索引放入vector中，idx中存储用户所选择的索引
    bool ok = GetTargetRcd(id, idx);

    if(!ok) return;

    Record newrcd;
	
	//读取新纪录
    ok = GetNewRcd(newrcd);
    if(!ok)  return;

    records[id[idx-1]] = newrcd;
	
	//弹出提示成功修改的窗口
    QMessageBox::information(this, tr("Result"), tr("Success!"),QMessageBox::Ok);

    SaveToFile();
}

//当LineEdit内容被改变时做出响应的槽函数
void AddressBook::on_SrchEdit_textChanged(const QString &arg1)
{
    string SrchStr = ui->SrchEdit->text().toStdString();

    QString DisplyStr;

    if(SrchStr.size() == 0)
    {
        ui->DisplayEdit->setPlainText(DisplyStr);
        return;
    }

	//记录记录条数
    int cnt = 0;
	
	//按关键字进行查找
    for(int i = 0; i < records.size(); ++i)
    {
        if((signed)records[i].name.toStdString().find(SrchStr) != -1
        || (signed)records[i].phone_num.toStdString().find(SrchStr) != -1
        || (signed)records[i].relation.toStdString().find(SrchStr) != -1
        || (signed)records[i].province.toStdString().find(SrchStr) != -1
        || (signed)records[i].city.toStdString().find(SrchStr) != -1)
        {
            ++cnt;
            DisplyStr += "Name: " + records[i].name + '\n';
            DisplyStr += "PhoneNum: " + records[i].phone_num + '\n';
            DisplyStr += "Relation: " + records[i].relation + "\n";
            DisplyStr += "Province: " + records[i].province + "\n";
            DisplyStr += "City: " + records[i].city + "\n\n";
        }
    }

	//处理单复数
    QString s;
    if(cnt > 1) s = "s";

    char num[105];
    sprintf(num, "%d ", cnt);
	
	//将查找到的符合关键字的record都显示到界面上
    DisplyStr = "There are " + QString(num) + "Record" + s + '\n' + DisplyStr;
    ui->DisplayEdit->setPlainText(DisplyStr);
}

//Help按钮槽函数
void AddressBook::on_HelpBtn_clicked()
{
    QFile file("help.txt");
	
	//打开help。txt文件
    if(!file.open(QIODevice::ReadWrite |QIODevice::Text))
        qDebug() << file.errorString();
    QTextStream in(&file);

    QString cur, s;

    while(1)
    {
        cur = in.readLine();
        if(cur.size() == 0) break;
        s += cur + '\n';
    }
	
	//显示help文件内容到MessageBox中去
    QMessageBox::information(this, tr("Help"), tr(s.toStdString().c_str()),QMessageBox::Ok);

    file.close();
}

addressbook.h

#ifndef ADDRESSBOOK_H
#define ADDRESSBOOK_H

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include "record.h"
#include 

namespace Ui {
class AddressBook;
}

class AddressBook : public QMainWindow
{
    Q_OBJECT

public:
    explicit AddressBook(QWidget *parent = 0);
    ~AddressBook();

    void SaveToFile();

    void ReadFromFile();

    bool GetTargetRcd(vector &, int &);

    bool GetNewRcd(Record &);

private slots:
    void on_AddBtn_clicked();

    void on_DelBtn_clicked();

    void on_DisplayBtn_clicked();

    void on_ModifyBtn_clicked();

    void on_SrchEdit_textChanged(const QString &arg1);

    void on_HelpBtn_clicked();

private:
    Ui::AddressBook *ui;

    QVector records;
};

#endif // ADDRESSBOOK_H

main.cpp

#include "addressbook.h"
#include 

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    AddressBook w;
    //w.setObjectName("addressbook");
    w.ReadFromFile();
    //w.setStyleSheet("#addressbook{border-image:url(C://Users//hello//Desktop//bg.png);}");
    w.show();

    return a.exec();
}

record.cpp

#include "record.h"

Record::Record(QString s1, QString s2, QString s3, QString s4, QString s5)
    : name(s1), phone_num(s2), relation(s3), province(s4), city(s5)
{

}

bool Record::operator<(const Record &rhs)
{
    //transform name to standard
    string a(name.toStdString()), b(rhs.name.toStdString());

    for(char &ch : a)
    {
        ch = tolower(ch);
    }

    for(char &ch : b)
    {
        ch = tolower(ch);
    }

    return a < b;
}

record.h

#ifndef RECORD_H
#define RECORD_H

#include 

using namespace std;

class Record
{
public:
    Record() = default;
    Record(QString, QString, QString, QString, QString);

    QString name;
    QString phone_num;
    QString relation;
    QString province;
    QString city;

    bool operator<(const Record &rhs);
};

#endif // RECORD_H