165 lines
4.0 KiB
C
165 lines
4.0 KiB
C
#include "menu.h"
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#include <stdio.h>
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#include <string.h>
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/* 简单的静态菜单树：
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*
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* 层级 0: [运行界面] [定值设置] [查看数据]
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* │ │
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* 层级 1: (子菜单...) (子菜单...)
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*/
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static MenuItem g_menuRun;
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static MenuItem g_menuSet;
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static MenuItem g_menuSee;
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static MenuItem g_menuSet1;
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static MenuItem g_menuSet2;
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void Menu_InitPC(MenuCtrl *ctrl)
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{
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memset(&g_menuRun, 0, sizeof(g_menuRun));
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memset(&g_menuSet, 0, sizeof(g_menuSet));
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memset(&g_menuSee, 0, sizeof(g_menuSee));
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memset(&g_menuSet1, 0, sizeof(g_menuSet1));
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memset(&g_menuSet2, 0, sizeof(g_menuSet2));
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/* 0 级菜单 */
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g_menuRun.name = "运行界面";
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g_menuRun.tip = "显示运行状态";
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g_menuRun.level = 0;
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g_menuRun.pos = 0;
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g_menuSet.name = "定值设置";
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g_menuSet.tip = "进入定值设置菜单";
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g_menuSet.level = 0;
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g_menuSet.pos = 1;
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g_menuSee.name = "查看数据";
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g_menuSee.tip = "查看测量值和记录";
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g_menuSee.level = 0;
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g_menuSee.pos = 2;
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/* 0 级链表关系 */
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g_menuRun.before = &g_menuSee;
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g_menuRun.behind = &g_menuSet;
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g_menuSet.before = &g_menuRun;
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g_menuSet.behind = &g_menuSee;
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g_menuSee.before = &g_menuSet;
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g_menuSee.behind = &g_menuRun;
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/* 1 级菜单：定值设置下的两个子菜单 */
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g_menuSet1.name = "保护定值";
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g_menuSet1.tip = "编辑保护定值";
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g_menuSet1.level = 1;
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g_menuSet1.pos = 0;
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g_menuSet1.higher = &g_menuSet;
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g_menuSet2.name = "通信参数";
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g_menuSet2.tip = "编辑通信参数";
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g_menuSet2.level = 1;
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g_menuSet2.pos = 1;
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g_menuSet2.higher = &g_menuSet;
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g_menuSet1.before = &g_menuSet2;
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g_menuSet1.behind = &g_menuSet2;
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g_menuSet2.before = &g_menuSet1;
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g_menuSet2.behind = &g_menuSet1;
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g_menuSet.lower = &g_menuSet1;
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/* 初始化控制结构 */
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ctrl->head0 = &g_menuRun;
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ctrl->current = &g_menuRun;
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}
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/* 控制台绘制当前菜单状态 */
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static void Menu_Draw(const MenuCtrl *ctrl)
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{
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const MenuItem *cur = ctrl->current;
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const MenuItem *p;
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printf("\n==== PC HMI 菜单模拟 ====\n");
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printf("使用 W/S/A/D/Enter/Esc 操作，Ctrl+C 退出。\n\n");
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/* 显示 0 级菜单 */
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printf("[0级菜单]: ");
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p = ctrl->head0;
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if (!p) {
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printf("(空)\n");
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return;
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}
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const MenuItem *start = p;
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do {
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if (p == cur)
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printf(" [*%s*] ", p->name);
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else
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printf(" %s ", p->name);
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p = p->behind;
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} while (p && p != start);
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printf("\n");
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/* 若当前有下级，则显示 1 级菜单 */
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if (cur->lower) {
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printf(" 子菜单:\n");
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p = cur->lower;
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start = p;
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do {
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printf(" - %s\n", p->name);
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p = p->behind;
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} while (p && p != start);
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}
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/* 提示信息 */
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printf("\n提示: %s\n", cur->tip ? cur->tip : "");
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}
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void Menu_LoopStep(MenuCtrl *ctrl, int key)
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{
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MenuItem *cur = ctrl->current;
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switch (key) {
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case KEY_U:
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if (cur->before)
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cur = cur->before;
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break;
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case KEY_D:
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if (cur->behind)
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cur = cur->behind;
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break;
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case KEY_L:
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if (cur->higher)
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cur = cur->higher;
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break;
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case KEY_R:
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case KEY_ENT:
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if (cur->lower)
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cur = cur->lower;
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printf("\n>>> 进入 [%s] 功能(模拟用户层)...\n", cur->name);
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break;
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case KEY_ESC:
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if (cur->higher)
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cur = cur->higher;
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break;
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default:
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break;
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}
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ctrl->current = cur;
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Menu_Draw(ctrl);
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}
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int Menu_MapKey(int ch)
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{
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if (ch == 'w' || ch == 'W') return KEY_U;
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if (ch == 's' || ch == 'S') return KEY_D;
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if (ch == 'a' || ch == 'A') return KEY_L;
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if (ch == 'd' || ch == 'D') return KEY_R;
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if (ch == '\r' || ch == '\n') return KEY_ENT;
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if (ch == 27) return KEY_ESC; /* ESC */
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return KEY_NONE;
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}
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