82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
#include <ncurses.h>
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WINDOW *create_newwin(int height, int width, int starty, int startx);
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void destroy_win(WINDOW *local_win);
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int main(int argc, char *argv[])
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{ WINDOW *my_win;
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int startx, starty, width, height;
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int ch;
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initscr(); /* Start curses mode */
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cbreak(); /* Line buffering disabled, Pass on
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* everty thing to me */
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keypad(stdscr, TRUE); /* I need that nifty F1 */
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height = 3;
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width = 10;
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starty = (LINES - height) / 2; /* Calculating for a center placement */
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startx = (COLS - width) / 2; /* of the window */
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printw("Press F1 to exit");
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refresh();
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my_win = create_newwin(height, width, starty, startx);
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while((ch = getch()) != KEY_F(1))
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{ switch(ch)
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{ case KEY_LEFT:
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destroy_win(my_win);
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my_win = create_newwin(height, width, starty,--startx);
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break;
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case KEY_RIGHT:
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destroy_win(my_win);
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my_win = create_newwin(height, width, starty,++startx);
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break;
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case KEY_UP:
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destroy_win(my_win);
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my_win = create_newwin(height, width, --starty,startx);
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break;
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case KEY_DOWN:
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destroy_win(my_win);
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my_win = create_newwin(height, width, ++starty,startx);
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break;
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}
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}
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endwin(); /* End curses mode */
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return 0;
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}
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WINDOW *create_newwin(int height, int width, int starty, int startx)
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{ WINDOW *local_win;
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local_win = newwin(height, width, starty, startx);
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box(local_win, 0 , 0); /* 0, 0 gives default characters
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* for the vertical and horizontal
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* lines */
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wrefresh(local_win); /* Show that box */
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return local_win;
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}
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void destroy_win(WINDOW *local_win)
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{
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/* box(local_win, ' ', ' '); : This won't produce the desired
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* result of erasing the window. It will leave it's four corners
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* and so an ugly remnant of window.
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*/
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wborder(local_win, ' ', ' ', ' ',' ',' ',' ',' ',' ');
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/* The parameters taken are
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* 1. win: the window on which to operate
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* 2. ls: character to be used for the left side of the window
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* 3. rs: character to be used for the right side of the window
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* 4. ts: character to be used for the top side of the window
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* 5. bs: character to be used for the bottom side of the window
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* 6. tl: character to be used for the top left corner of the window
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* 7. tr: character to be used for the top right corner of the window
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* 8. bl: character to be used for the bottom left corner of the window
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* 9. br: character to be used for the bottom right corner of the window
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*/
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wrefresh(local_win);
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delwin(local_win);
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} |