利用ncurses库开发终端工具箱（1）—— ToDoList小工具开发

准备工作

腾讯云服务器（Ubuntu），C++编程语言

由于想输出界面中包含中文，所以安装库 libncursesw5，依次输入下面三行命令

sudo apt-get install libncursesw5
sudo apt-get install libncursesw5-dbg
sudo apt-get install libncursesw5-dev

编译用如下命令

g++ main.cpp -l ncursesw

ToDoList小工具开发

思路

由于一开始想的就比较多，想做一个工具箱，所以Todolist工具只是其中的一个，这样的话用c++每个小工具封装成一个类肯定更适合。

主程序很简单，都用一个套路，注意由于要输出中文，所以头文件有locale.h, 主程序中也添加了setlocale(LC_ALL,"")

 #include <iostream>
 #include <ncurses.h>
 #include <locale.h>
 #include "tool.h"
 #include "todolist.h"
 using namespace std;

 int main()
 {
     setlocale(LC_ALL,"");
     initscr();
     cbreak();
     noecho();
     curs_set();
     keypad(stdscr,TRUE);

     refresh();

     TODOLIST *tt = new TODOLIST();
     tt->display();

     getch();
     endwin();
     return ;    

 }

注意到头文件中有两个自己设定的类tool和todolist

tool类

这里面主要放一些通用的，或者用的比较多的功能，如创建一个窗口，销毁一个窗口，获取当前时间等。

 #ifndef _TOOL_H_
 #define _TOOL_H_
 #include <string>
 #include <sstream>
 #include <ctime>
 #include <ncurses.h>
 using namespace std;

 class TOOL
 {
 public:
     string int2str(int num);
     string getCurrentDate();
     WINDOW *create_newwin(int height, int width, int starty, int startx);
     void destory_win(WINDOW *local_win);
 };

 #endif

#include "tool.h"

string TOOL::int2str(int num)
{
    stringstream stream;
    stream<<num;
    return stream.str();
}

string TOOL::getCurrentDate()
{
    time_t rawtime;
    struct tm *ptminfo;

    time(&rawtime);
    ptminfo = localtime(&rawtime);

    string ss="时间："+int2str(ptminfo->tm_year+)+"年"+int2str(ptminfo->tm_mon+)+"月"
            +int2str(ptminfo->tm_mday)+"日";
    return ss;
}

WINDOW *TOOL::create_newwin(int height, int width, int starty, int startx)
{
    WINDOW *local_win;
    local_win = newwin(height, width, starty, startx);
    box(local_win,,);
    wrefresh(local_win);
    return local_win;
}

void TOOL::destory_win(WINDOW *local_win)
{
    wborder(local_win, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
    wrefresh(local_win);
    delwin(local_win);
}

TODOLIST类

这里面就是我们小工具的功能实现

一个简单的todolist我在这里分成了四个部分，标题，未完成，已完成，输出/显示窗口，因此要建立四个窗口

每个窗口的尺寸位置都要注意分配。

 #ifndef _TODOLIST_H_
 #define _TODOLIST_H_
 #include <ncurses.h>
 #include "tool.h"
 #include <string>
 #include <cstring>
 using namespace std;

 class TODOLIST
 {
 public:
     TODOLIST();
     ~TODOLIST();
     void display();

     TOOL tool;
     WINDOW *title_win, *todo_win, *done_win, *info_win;

     int title_win_h, title_win_w, title_win_y, title_win_x;
     int todo_win_h, todo_win_w, todo_win_y, todo_win_x;
     int done_win_h, done_win_w, done_win_y, done_win_x;
     int info_win_h, info_win_w, info_win_y, info_win_x;
 };
 #endif

 #include "todolist.h"

 TODOLIST::TODOLIST()
 {
     title_win_h = ;

     title_win_y = ;
     title_win_x = ;

     todo_win_h = ;
     todo_win_w = ;
     todo_win_y = title_win_y + title_win_h + ;
     todo_win_x = ;

     done_win_h = todo_win_h;
     done_win_w = todo_win_w;
     done_win_y = todo_win_y;
     done_win_x = todo_win_x + todo_win_w + ;

     info_win_h = ;

     info_win_y = todo_win_y + todo_win_h + ;
     info_win_x = ;

     title_win_w = todo_win_w + done_win_w + ;
     info_win_w = title_win_w;
 }

 void TODOLIST::display()
 {
 //显示标题窗口
     title_win = tool.create_newwin(title_win_h,title_win_w,title_win_y,title_win_x);
     char currdate[];
     string title;
     title = tool.getCurrentDate() + "          " + "ToDoList 1.0         by 大蓝鲸";
     strcpy(currdate,title.c_str());

     mvwprintw(title_win,,, currdate);
     wrefresh(title_win);

 //待办事项窗口
     todo_win = tool.create_newwin(todo_win_h,todo_win_w,todo_win_y,todo_win_x);
     mvwprintw(todo_win, , , "未完成事项");
     wrefresh(todo_win);

 //已完成事项窗口
     done_win = tool.create_newwin(done_win_h,done_win_w,done_win_y,done_win_x);
     mvwprintw(done_win, , , "已完成事项");
     wrefresh(done_win);

 //信息提示窗口
     info_win = tool.create_newwin(info_win_h,info_win_w,info_win_y,info_win_x);
     mvwprintw(info_win, , , "提示");
     wrefresh(info_win);
 }

 TODOLIST::~TODOLIST()
 {

 }

编译运行

g++ *.h *.cpp -l ncursesw

./a.out

运行结果

代码放在Github上了，链接