156 lines
4.1 KiB
C++
156 lines
4.1 KiB
C++
#include <string>
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#include <curses.h>
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#ifndef _MENU_H_
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#define _MENU_H_
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class Menu {
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public:
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Menu(std::string text, char trigger, std::string *items, int num_items)
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{
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this->text = text;
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this->trigger = trigger;
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this->items = items;
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this->num_items = num_items;
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this->selected_item = 0;
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}
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int start_x;
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std::string text;
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char trigger;
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std::string *items;
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int num_items;
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int selected_item;
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void selectNextItem(){
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selected_item++;
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if (selected_item >= num_items)
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selected_item = 0;
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}
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void selectPrevItem(){
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selected_item--;
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if (selected_item < 0)
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selected_item = num_items - 1;
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}
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};
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class MenuBar {
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public:
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MenuBar(WINDOW *win,Menu *menus, int num_menus)
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{
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this->win = win;
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this->menus = menus;
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this->num_menus = num_menus;
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this->selected_menu = -1;
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int yMax,xMax,yBeg,xBeg;
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getmaxyx(win,yMax,xMax);
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getbegyx(win,yBeg,xBeg);
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menuwin = newwin(yMax-2,xMax-2,yBeg+1,xBeg+1);
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wrefresh(menuwin);
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int current_pos = 2;
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for (int i = 0; i < num_menus; i++)
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{
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this->menus[i].start_x=current_pos;
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current_pos += this->menus[i].text.length() + 1;
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}
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}
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void reset()
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{
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for (int i = 0; i < num_menus; i++)
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{
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int start_x = this->menus[i].start_x;
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std::string text = this->menus[i].text;
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mvwprintw(win,0,start_x,"%s",text.c_str());
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}
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wrefresh(win);
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}
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void draw()
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{
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for (int i = 0; i < num_menus; i++)
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{
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drawMenu(menus[i],selected_menu == i);
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}
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selected_menu = -1;
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wrefresh(win);
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}
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void drawMenu(Menu menu, bool is_selected)
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{
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int start_x = menu.start_x;
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std::string text = menu.text;
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if(is_selected)
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{
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wattron(win, A_STANDOUT);
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}
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mvwprintw(win,0,start_x,"%s",text.c_str());
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if(is_selected)
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{
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wattroff(win, A_STANDOUT);
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}
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wrefresh(win);
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char ch;
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drawMenuItems(menu);
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wrefresh(menuwin);
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while(is_selected && (ch = wgetch(menuwin)))
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{
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switch(ch)
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{
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case 'k':
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menu.selectNextItem();
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break;
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case 'j':
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menu.selectPrevItem();
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break;
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default:
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is_selected = false;
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}
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drawMenuItems(menu);
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}
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werase(menuwin);
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wrefresh(menuwin);
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reset();
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}
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void drawMenuItems(Menu menu)
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{
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int yMax,xMax;
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getmaxyx(menuwin,yMax,xMax);
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for (int i = 0; i<menu.num_items; i++)
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{
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mvwprintw(menuwin,i,0,"%s",menu.items[i].c_str());
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if(menu.selected_item == i)
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{
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mvwchgat(menuwin,i,0,xMax,A_NORMAL,1,NULL);
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}
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else
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{
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mvwchgat(menuwin,i,0,xMax,A_STANDOUT,0,NULL);
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}
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}
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}
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void handleTrigger(char trigger)
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{
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for (int i = 0; i < num_menus; i++)
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{
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if(trigger == this->menus[i].trigger)
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{
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selected_menu = i;
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break;
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}
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}
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}
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WINDOW *menuwin;
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WINDOW *win;
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Menu *menus;
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int num_menus;
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int selected_menu;
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};
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#endif
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