c - ncurses.h 确定窗口边框

Question

我只是想制作一个围绕终端的框窗口。我基本上要问的是......

假设我有一个窗口:

window(h,w,y,x);

y = LINES +1
x = COLS +1

如何使 h 和 w 像 MAX_X -1 或 MAX_Y -1

所以我创建的框勾勒出终端？以及如何用特定颜色填充此框？

Answer 1

您可以只使用 box() 函数在窗口边缘绘制边框，不需要知道高度和宽度即可。这是一个简单的例子，在蓝色背景上有一个白色边框:

#include <stdlib.h>
#include <curses.h>

#define MAIN_WIN_COLOR 1

int main(void) {

    /*  Create and initialize window  */

    WINDOW * win;
    if ( (win = initscr()) == NULL ) {
        fputs("Could not initialize screen.", stderr);
        exit(EXIT_FAILURE);
    }


    /*  Initialize colors  */

    if ( start_color() == ERR || !has_colors() || !can_change_color() ) {
        delwin(win);
        endwin();
        refresh();
        fputs("Could not use colors.", stderr);
        exit(EXIT_FAILURE);
    }

    init_pair(MAIN_WIN_COLOR, COLOR_WHITE, COLOR_BLUE);
    wbkgd(win, COLOR_PAIR(MAIN_WIN_COLOR));


    /*  Draw box  */

    box(win, 0, 0);
    wrefresh(win);


    /*  Wait for keypress before ending  */

    getch();


    /*  Clean up and exit  */

    delwin(win);
    endwin();
    refresh();

    return EXIT_SUCCESS;
}

如果你想知道窗口的尺寸，你可以像这样使用ioctl():

#include <sys/ioctl.h>

void get_term_size(unsigned short * height, unsigned short * width) {
    struct winsize ws = {0, 0, 0, 0};
    if ( ioctl(0, TIOCGWINSZ, &ws) < 0 ) {
        exit(EXIT_FAILURE);
    }

    *height = ws.ws_row;
    *width = ws.ws_col;
}