增加pdcurses，提供图形化

增加头文件ui.h，pdcurses依赖pdcurses.a,curses.h，分离login模块和ui模块。

CMakeLists.txt

@@ -1,17 +1,19 @@
-cmake_minimum_required(VERSION 3.29)
+cmake_minimum_required(VERSION 3.28.6)
 project(o C)
 
-set(CMAKE_C_STANDARD 11)
-
-include_directories(include)
-
-include_directories(data)
-
+set(CMAKE_C_STANDARD 99)
+set(LIBRARY_PATH "${CMAKE_SOURCE_DIR}/lib")
+set(LIBRARY_NAME "pdcurses.a")
 add_executable(o
+        include/curses.h
         include/function.h
         include/sqlite3.h
         include/sqlite3ext.h
         include/extern.h
         include/myerror.h
         main.c
-        sqlite3.c)
+        sqlite3.c
+        login.c
+        ui.c
+        include/ui.h)
+target_link_libraries(o "${LIBRARY_PATH}/${LIBRARY_NAME}")

include/function.h

@@ -4,29 +4,12 @@
 
 #include"sqlite3.h"
 
-#ifndef _INC_STDIO
-#define _INC_STDIO
-#endif
+#include <stdio.h>
 
 #ifndef FUNCTION_H
 #define FUNCTION_H
 
 int Login();
-void clear();
-void UserSignin();
-void StudentsDesktop();
-void TeachersDesktop();
-void clear(){
-    fprintf(stdout,"\033[2J");      //利用转义字符清空屏幕
-}
-int Login(){
-    sqlite3 *db;
-    int rc;
-    rc=sqlite3_open("./include/user.db",db);
-    if(rc!=SQLITE_OK){
-        fprintf(stderr,"无法打开数据库：%s\n",sqlite3_errmsg(db));
-        return -1;
-    }
-    
-}
+
+
 #endif //FUNCTION_H

include/myerror.h

@@ -2,13 +2,9 @@
 // Created by zhang on 2024/12/25.
 //
 
-#ifndef _INC_STDIO
-#define _INC_STDIO
-#endif
+#include <stdio.h>
 
-#ifndef FUNCTION_H
-#define FUNCTION_H
-#endif
+#include "function.h"
 
 #ifndef MYERROR_H
 #define MYERROR_H

include/ui.h

@@ -0,0 +1,17 @@
+//
+// Created by zhang on 2024/12/28.
+//
+
+#ifndef O_UI_H
+#define O_UI_H
+void Login_ui();
+
+void UserSignin_ui();
+
+void StudentsDesktop_ui();
+
+void TeachersDesktop_ui();
+
+void Welcome_ui();
+
+#endif //O_UI_H

main.c

@@ -4,31 +4,10 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <windows.h>
-#include "function.h"
-#include "myerror.h"
-#include "extern.h"
-
+#include "./include/function.h"
+#include "./include/ui.h"
+#include "./include/myerror.h"
+#include "./include/extern.h"
 int main() {
-    SetConsoleOutputCP(65001);
-    int isStudent;
-    while (true) {
-        fprintf(stdout, "欢迎进入口算系统！\n\n输入1以登录\n输入2以注册");
-        int x;
-        scanf("%d", &x);
-        if (x == 1) {
-            isStudent = Login();
-            if (isStudent == 1 || isStudent == 0)break;
-            if (isStudent == -1)continue;
-        } else if (x == 2) {
-            //UserSignin();
-            clear();
-        } else {
-            //Error_Invalid_input();
-        }
-    }
-    if (isStudent) {
-        //StudentsDesktop();
-    } else {
-        //TeachersDesktop();
-    }
+    Welcome_ui();
 }

ui.c

@@ -0,0 +1,209 @@
+//
+// Created by zhang on 2024/12/28.
+//
+#include <string.h>
+#include <ctype.h>
+#include "./include/function.h"
+#include "./include/curses.h"
+#include "./include/ui.h"
+#include <stdlib.h>
+
+#define BUTTON_WIDTH 12
+#define BUTTON_HEIGHT 3
+#define LOGIN_BTN_X 10
+#define LOGIN_BTN_Y 10
+#define REGISTER_BTN_X 20
+#define REGISTER_BTN_Y 10
+#define USERNAME_X 15
+#define USERNAME_Y 5
+#define PASSWORD_X 15
+#define PASSWORD_Y 7
+#define MAX_INPUT_LEN 30
+void draw_button(WINDOW *win, int x, int y, const char *label, bool is_active) {
+    if (is_active) {
+        wattron(win, A_REVERSE);  // 激活按钮时反显
+    }
+    mvwprintw(win, y, x + (BUTTON_WIDTH - strlen(label)) / 2, "%s", label);
+    if (is_active) {
+        wattroff(win, A_REVERSE); // 反显结束
+    }
+    box(win, 0, 0);  // 画按钮的边框
+    wrefresh(win);
+}
+
+void draw_login_window() {
+    // 绘制登录窗口
+    clear();
+    box(stdscr, 0, 0);
+
+    // 标题
+    mvprintw(2, 20, "Login Window");
+
+    // 用户名
+    mvprintw(USERNAME_Y, USERNAME_X - 10, "Username: ");
+    mvprintw(PASSWORD_Y, PASSWORD_X - 10, "Password: ");
+
+    // 输入框
+    mvprintw(USERNAME_Y, USERNAME_X, "____________________________");
+    mvprintw(PASSWORD_Y, PASSWORD_X, "____________________________");
+
+    // 按钮
+    mvprintw(LOGIN_BTN_Y, LOGIN_BTN_X, "[ Login ]");
+    mvprintw(REGISTER_BTN_Y, REGISTER_BTN_X, "[ Register ]");
+
+    refresh();
+}
+
+void handle_mouse_click(MEVENT event) {
+    // 处理鼠标点击事件
+    if (event.bstate & BUTTON1_CLICKED) {
+        // 判断是否点击了登录按钮
+        if (event.x >= LOGIN_BTN_X && event.x <= LOGIN_BTN_X + 9 &&
+            event.y == LOGIN_BTN_Y) {
+            printw("\nLogin button clicked!\n");
+            refresh();
+        }
+            // 判断是否点击了注册按钮
+        else if (event.x >= REGISTER_BTN_X && event.x <= REGISTER_BTN_X + 11 &&
+                 event.y == REGISTER_BTN_Y) {
+            printw("\nRegister button clicked!\n");
+            refresh();
+        }
+    }
+}
+
+void clear_input_area(int x, int y, int len) {
+    // 清除输入框区域
+    for (int i = 0; i < len; i++) {
+        mvaddch(y, x + i, ' ');
+    }
+}
+
+void Login_ui() {
+    initscr();                // 初始化屏幕
+    cbreak();                 // 禁用行缓冲
+    noecho();                 // 不显示输入的字符
+    keypad(stdscr, TRUE);     // 启用键盘功能（例如箭头键）
+    mousemask(ALL_MOUSE_EVENTS, NULL); // 启用所有鼠标事件
+    curs_set(0);              // 隐藏光标
+
+    draw_login_window();      // 绘制登录窗口
+
+    char username[MAX_INPUT_LEN + 1] = "";
+    char password[MAX_INPUT_LEN + 1] = "";
+    int ch;
+    MEVENT event;
+
+    while (1) {
+        ch = getch();  // 获取输入
+
+        if (ch == KEY_MOUSE) {  // 检查是否是鼠标事件
+            if (nc_getmouse(&event) == OK) {
+                handle_mouse_click(event);  // 处理鼠标点击事件
+            }
+        }
+
+        // 处理键盘输入（用户输入用户名和密码）
+        if (ch == 10) {  // 回车键
+            printw("\n登录成功！\n");
+            break;
+        }
+
+        // 如果是在用户名或密码框中输入
+        if (ch == KEY_BACKSPACE || ch == 127) {  // 退格键
+            // 删除输入框中的最后一个字符
+            if (strlen(username) > 0) {
+                username[strlen(username) - 1] = '\0';
+                clear_input_area(USERNAME_X, USERNAME_Y, MAX_INPUT_LEN);
+                mvprintw(USERNAME_Y, USERNAME_X, "%s", username);
+            }
+        } else if (isprint(ch)) {  // 只接受可打印的字符
+            if (strlen(username) < MAX_INPUT_LEN) {
+                username[strlen(username)] = ch;
+                username[strlen(username) + 1] = '\0';
+                mvprintw(USERNAME_Y, USERNAME_X, "%s", username);
+            }
+        }
+
+        refresh();
+    }
+
+    endwin();  // 结束 ncurses 模式
+    return;
+}
+// 用于绘制按钮的函数
+
+void Welcome_ui() {
+    MEVENT event;
+    int startx, starty;
+    int button_x, button_y;
+
+    // 初始化ncurses环境
+    initscr();
+    cbreak();
+    noecho();
+    keypad(stdscr, TRUE);
+    curs_set(0);
+
+    // 启用鼠标事件
+    mousemask(ALL_MOUSE_EVENTS, NULL);
+
+    // 获取屏幕的尺寸
+    int rows, cols;
+    getmaxyx(stdscr, rows, cols);
+
+    // 计算按钮的显示位置
+    startx = cols / 2 - BUTTON_WIDTH / 2;
+    starty = rows / 2 - 2; // 使文本和按钮垂直居中
+
+    // 打印欢迎文本
+    mvprintw(starty - 3, startx, "欢迎来到我们的程序!");
+    refresh();
+
+    // 创建两个按钮的窗口
+    WINDOW *login_button_win = newwin(BUTTON_HEIGHT, BUTTON_WIDTH, starty, startx);
+    WINDOW *register_button_win = newwin(BUTTON_HEIGHT, BUTTON_WIDTH, starty + BUTTON_HEIGHT + 1, startx);
+
+    // 绘制按钮
+    draw_button(login_button_win, 0, 0, "Login", false);
+    draw_button(register_button_win, 0, 0, "Signin", false);
+
+    refresh();
+
+    bool login_active = false;
+    bool register_active = false;
+
+    while (1) {
+        int ch = getch();
+        if (ch == KEY_MOUSE) {
+            if (nc_getmouse(&event) == OK) {
+                // 检查点击的区域是否是登录按钮
+                if (event.x >= startx && event.x < startx + BUTTON_WIDTH && event.y >= starty && event.y < starty + BUTTON_HEIGHT) {
+                    login_active = true;
+                    register_active = false;
+                    draw_button(login_button_win, 0, 0, "Login", true);  // 激活登录按钮
+                    draw_button(register_button_win, 0, 0, "Signin", false); // 取消激活注册按钮
+                    printw("您点击了登录按钮!\n");
+                }
+                    // 检查点击的区域是否是注册按钮
+                else if (event.x >= startx && event.x < startx + BUTTON_WIDTH && event.y >= starty + BUTTON_HEIGHT + 1 && event.y < starty + BUTTON_HEIGHT + 1 + BUTTON_HEIGHT) {
+                    login_active = false;
+                    register_active = true;
+                    draw_button(login_button_win, 0, 0, "登录", false); // 取消激活登录按钮
+                    draw_button(register_button_win, 0, 0, "注册", true); // 激活注册按钮
+                    printw("您点击了注册按钮!\n");
+                }
+                refresh();
+            }
+        }
+
+        // 按 'q' 键退出
+        if (ch == 'q') {
+            break;
+        }
+    }
+
+    // 清理退出
+    endwin();
+    return;
+}