C++ c+上pdcurses上的控制台菜单+;
我想用pdcurses制作一个菜单,问题是我不能移动菜单中的第三项,我可以选择第一项或第二项,如何通过箭头移动到菜单中的第三项,通过“滚动菜单功能”我们可以在菜单中导航。代码C++ c+上pdcurses上的控制台菜单+;,c++,C++,我想用pdcurses制作一个菜单,问题是我不能移动菜单中的第三项,我可以选择第一项或第二项,如何通过箭头移动到菜单中的第三项,通过“滚动菜单功能”我们可以在菜单中导航。代码 #include <curses.h> #include <stdlib.h> #define ENTER 10 #define ESCAPE 27 void init_curses() { initscr(); start_color(); init_pair(1,CO
#include <curses.h>
#include <stdlib.h>
#define ENTER 10
#define ESCAPE 27
void init_curses()
{
initscr();
start_color();
init_pair(1,COLOR_WHITE,COLOR_BLUE);
init_pair(2,COLOR_BLUE,COLOR_WHITE);
init_pair(3,COLOR_RED,COLOR_WHITE);
curs_set(0);
noecho();
keypad(stdscr,TRUE);
}
void draw_menubar(WINDOW *menubar)
{
wbkgd(menubar,COLOR_PAIR(2));
waddstr(menubar,"Menu1");
wattron(menubar,COLOR_PAIR(3));
waddstr(menubar,"(F1)");
wattroff(menubar,COLOR_PAIR(3));
wmove(menubar,0,20);
waddstr(menubar,"Menu2");
wattron(menubar,COLOR_PAIR(3));
waddstr(menubar,"(F2)");
wattroff(menubar,COLOR_PAIR(3));
wmove(menubar,0,40);
waddstr(menubar,"Menu3");
wattron(menubar,COLOR_PAIR(3));
waddstr(menubar,"(F3)");
wattroff(menubar,COLOR_PAIR(3));
}
WINDOW **draw_menu(int start_col)
{
int i;
WINDOW **items;
items=(WINDOW **)malloc(9*sizeof(WINDOW *));
items[0]=newwin(10,19,1,start_col);
wbkgd(items[0],COLOR_PAIR(2));
box(items[0],ACS_VLINE,ACS_HLINE);
items[1]=subwin(items[0],1,17,2,start_col+1);
items[2]=subwin(items[0],1,17,3,start_col+1);
items[3]=subwin(items[0],1,17,4,start_col+1);
items[4]=subwin(items[0],1,17,5,start_col+1);
items[5]=subwin(items[0],1,17,6,start_col+1);
items[6]=subwin(items[0],1,17,7,start_col+1);
items[7]=subwin(items[0],1,17,8,start_col+1);
items[8]=subwin(items[0],1,17,9,start_col+1);
for (i=1;i<9;i++)
wprintw(items[i],"Item%d",i);
wbkgd(items[1],COLOR_PAIR(1));
wrefresh(items[0]);
return items;
}
void delete_menu(WINDOW **items,int count)
{
int i;
for (i=0;i<count;i++)
delwin(items[i]);
free(items);
}
int scroll_menu(WINDOW **items,int count,int menu_start_col)
{
int key;
int selected=0;
while (1) {
key=getch();
if (key==KEY_DOWN || key==KEY_UP) {
wbkgd(items[selected+1],COLOR_PAIR(2));
wnoutrefresh(items[selected+1]);
if (key==KEY_DOWN) {
selected=(selected+1) % count;
} else {
selected=(selected+count-1) % count;
}
wbkgd(items[selected+1],COLOR_PAIR(1));
wnoutrefresh(items[selected+1]);
doupdate();
} else if (key==KEY_LEFT || key==KEY_RIGHT) {
delete_menu(items,count+1);
touchwin(stdscr);
refresh();
items=draw_menu(20-menu_start_col);//
return scroll_menu(items,8,20-menu_start_col);
} else if (key==ESCAPE) {
return -1;
} else if (key==ENTER) {
return selected;
}
}
}
int main()
{
int key;
WINDOW *menubar,*messagebar;
init_curses();
bkgd(COLOR_PAIR(1));
menubar=subwin(stdscr,1,80,0,0);
messagebar=subwin(stdscr,1,79,23,1);
draw_menubar(menubar);
move(2,1);
printw("Press F1 or F2 to open the menus. ");
printw("ESC quits.");
refresh();
do {
int selected_item;
WINDOW **menu_items;
key=getch();
werase(messagebar);
wrefresh(messagebar);
if (key==KEY_F(1)) {
menu_items=draw_menu(0);
selected_item=scroll_menu(menu_items,8,0);
delete_menu(menu_items,9);
if (selected_item<0)
wprintw(messagebar,"You haven't selected any item.");
else
wprintw(messagebar,
"You have selected menu item %d.",selected_item+1);
touchwin(stdscr);
refresh();
} else if (key==KEY_F(2)) {
menu_items=draw_menu(20);
selected_item=scroll_menu(menu_items,8,20);
delete_menu(menu_items,9);
if (selected_item<0)
wprintw(messagebar,"You haven't selected any item.");
else
wprintw(messagebar,
"You have selected menu item %d.",selected_item+1);
touchwin(stdscr);
refresh();
}else if (key==KEY_F(3)) {
menu_items=draw_menu(40);
selected_item=scroll_menu(menu_items,8,40);
delete_menu(menu_items,9);
if (selected_item<0)
wprintw(messagebar,"You haven't selected any item.");
else
wprintw(messagebar,
"You have selected menu item %d.",selected_item+1);
touchwin(stdscr);
refresh();
}
} while (key!=ESCAPE);
delwin(menubar);
delwin(messagebar);
endwin();
return 0;
}
#包括
#包括
#定义并输入10
#定义逃逸27
void init_curses()
{
initscr();
启动颜色();
初始对(1,白色,蓝色);
初始对(2,颜色为蓝色,颜色为白色);
初始对(3,红色,白色);
curs_集(0);
noecho();
键盘(stdscr,真);
}
无效绘图菜单栏(窗口*菜单栏)
{
wbkgd(菜单栏,颜色对(2));
waddstr(菜单栏,“菜单1”);
wattron(menubar,彩色双色(3));
waddstr(menubar,“(F1)”);
wattroff(菜单栏,颜色对(3));
wmove(menubar,0,20);
waddstr(menubar,Menu2);
wattron(menubar,彩色双色(3));
waddstr(菜单栏,“(F2)”;
wattroff(菜单栏,颜色对(3));
wmove(menubar,0,40);
waddstr(菜单栏,“菜单3”);
wattron(menubar,彩色双色(3));
waddstr(菜单栏,“(F3)”;
wattroff(菜单栏,颜色对(3));
}
窗口**绘图菜单(int开始列)
{
int i;
窗口**项目;
项目=(窗口**)malloc(9*sizeof(窗口*);
项目[0]=newwin(10,19,1,开始列);
wbkgd(项目[0],颜色对(2));
框(项目[0],ACS\u VLINE,ACS\u HLINE);
项目[1]=子温(项目[0],1,17,2,开始列+1);
项目[2]=子温(项目[0],1,17,3,开始列+1);
项目[3]=子窗口(项目[0],1,17,4,开始列+1);
项目[4]=子窗口(项目[0],1,17,5,开始列+1);
项目[5]=子窗口(项目[0],1,17,6,开始列+1);
项目[6]=子窗口(项目[0],1,17,7,开始列+1);
项目[7]=子窗口(项目[0],1,17,8,开始列+1);
项目[8]=子窗口(项目[0],1,17,9,开始列+1);
对于(i=1;i1)在我看来,函数(如scroll\u menu(items,8,20-menu\u start\u col);
)中有太多的magc编号2)在scroll\u menu(…)
:第二个wbkgd(items[selected+1],COLOR\u PAIR(1));wnoutrefresh(items[selected+1])
应该做什么?为什么selected+1
?它不应该重新绘制以前选择的项key=getch();old_selected=selected;…..wbkgd(项[old_selected],颜色对(1));wnoutrefresh(项[old_selected]);
?1)在我看来,函数中的magc数太多了(比如滚动菜单(项目,8,20-menu_start_col);
)2)在滚动菜单(…)
:第二个wbkgd(项目[selected+1],颜色对(1));wnoutrefresh(项目[selected+1]);
应该做什么?为什么选择+1
?不应该重新绘制以前选择的项目key=getch();old_selected=selected;…wbkgd(项目[old_selected],颜色对(1));WOutRefresh(项目[old_selected]);
?