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/**************************************************************************** * Copyright (c) 2007-2009,2012 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /* * $Id: test_getstr.c,v 1.10 2012/07/07 18:22:49 tom Exp $ * * Author: Thomas E Dickey * * Demonstrate the getstr functions from the curses library. int getstr(char *str); int getnstr(char *str, int n); int wgetstr(WINDOW *win, char *str); int wgetnstr(WINDOW *win, char *str, int n); int mvgetstr(int y, int x, char *str); int mvwgetstr(WINDOW *win, int y, int x, char *str); int mvgetnstr(int y, int x, char *str, int n); int mvwgetnstr(WINDOW *, int y, int x, char *str, int n); */ #include <test.priv.h> #if HAVE_CHGAT /* Solaris SVr4 curses lacks wchgat, mvgetnstr, mvwgetnstr */ #define BASE_Y 6 #define MAX_COLS 1024 typedef enum { eGetStr = 0, eGetNStr, eMvGetStr, eMvGetNStr, eMaxFlavor } Flavors; /* * Return-code is OK/ERR or a keyname. */ static const char * ok_keyname(int code) { return ((code == OK) ? "OK" : ((code == ERR) ? "ERR" : keyname(code))); } static bool Quit(int ch) { return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE); } static int Remainder(WINDOW *txtwin) { int result = getmaxx(txtwin) - getcurx(txtwin); return (result > 0) ? result : 0; } /* * Show a highlighted line in the place where input will happen. */ static void ShowPrompt(WINDOW *txtwin, int limit) { wchgat(txtwin, limit, A_REVERSE, 0, NULL); wnoutrefresh(txtwin); } static void MovePrompt(WINDOW *txtwin, int limit, int y, int x) { wchgat(txtwin, Remainder(txtwin), A_NORMAL, 0, NULL); wmove(txtwin, y, x); ShowPrompt(txtwin, limit); } static int ShowFlavor(WINDOW *strwin, WINDOW *txtwin, int flavor, int limit) { const char *name = "?"; bool limited = FALSE; bool wins = (txtwin != stdscr); int result; switch (flavor) { case eGetStr: name = wins ? "wgetstr" : "getstr"; break; case eGetNStr: limited = TRUE; name = wins ? "wgetnstr" : "getnstr"; break; case eMvGetStr: name = wins ? "mvwgetstr" : "mvgetstr"; break; case eMvGetNStr: limited = TRUE; name = wins ? "mvwgetnstr" : "mvgetnstr"; break; case eMaxFlavor: break; } wmove(strwin, 0, 0); werase(strwin); if (limited) { wprintw(strwin, "%s(%d):", name, limit); } else { wprintw(strwin, "%s:", name); } result = limited ? limit : Remainder(txtwin); ShowPrompt(txtwin, result); wnoutrefresh(strwin); return result; } static int test_getstr(int level, char **argv, WINDOW *strwin) { WINDOW *txtbox = 0; WINDOW *txtwin = 0; FILE *fp; int ch; int rc; int txt_x = 0, txt_y = 0; int base_y; int flavor = 0; int limit = getmaxx(strwin) - 5; int actual; char buffer[MAX_COLS]; if (argv[level] == 0) { beep(); return FALSE; } if (level > 1) { txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level); box(txtbox, 0, 0); wnoutrefresh(txtbox); txtwin = derwin(txtbox, getmaxy(txtbox) - 2, getmaxx(txtbox) - 2, 1, 1); base_y = 0; } else { txtwin = stdscr; base_y = BASE_Y; } keypad(txtwin, TRUE); /* enable keyboard mapping */ (void) cbreak(); /* take input chars one at a time, no wait for \n */ (void) noecho(); /* don't echo input */ txt_y = base_y; txt_x = 0; wmove(txtwin, txt_y, txt_x); if ((fp = fopen(argv[level], "r")) != 0) { while ((ch = fgetc(fp)) != EOF) { if (waddch(txtwin, UChar(ch)) != OK) { break; } } fclose(fp); } else { wprintw(txtwin, "Cannot open:\n%s", argv[1]); } wmove(txtwin, txt_y, txt_x); actual = ShowFlavor(strwin, txtwin, flavor, limit); while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) { switch (ch) { case KEY_DOWN: case 'j': if (txt_y < getmaxy(txtwin) - 1) { MovePrompt(txtwin, actual, ++txt_y, txt_x); } else { beep(); } break; case KEY_UP: case 'k': if (txt_y > base_y) { MovePrompt(txtwin, actual, --txt_y, txt_x); } else { beep(); } break; case KEY_LEFT: case 'h': if (txt_x > 0) { MovePrompt(txtwin, actual, txt_y, --txt_x); } else { beep(); } break; case KEY_RIGHT: case 'l': if (txt_x < getmaxx(txtwin) - 1) { MovePrompt(txtwin, actual, txt_y, ++txt_x); } else { beep(); } break; case 'w': test_getstr(level + 1, argv, strwin); if (txtbox != 0) { touchwin(txtbox); wnoutrefresh(txtbox); } else { touchwin(txtwin); wnoutrefresh(txtwin); } break; case '-': if (limit > 0) { actual = ShowFlavor(strwin, txtwin, flavor, --limit); MovePrompt(txtwin, actual, txt_y, txt_x); } else { beep(); } break; case '+': actual = ShowFlavor(strwin, txtwin, flavor, ++limit); MovePrompt(txtwin, actual, txt_y, txt_x); break; case '<': if (flavor > 0) { actual = ShowFlavor(strwin, txtwin, --flavor, limit); MovePrompt(txtwin, actual, txt_y, txt_x); } else { beep(); } break; case '>': if (flavor + 1 < eMaxFlavor) { actual = ShowFlavor(strwin, txtwin, ++flavor, limit); MovePrompt(txtwin, actual, txt_y, txt_x); } else { beep(); } break; case ':': actual = ShowFlavor(strwin, txtwin, flavor, limit); *buffer = '\0'; rc = ERR; echo(); (void) wattrset(txtwin, A_REVERSE); switch (flavor) { case eGetStr: if (txtwin != stdscr) { wmove(txtwin, txt_y, txt_x); rc = wgetstr(txtwin, buffer); } else { move(txt_y, txt_x); rc = getstr(buffer); } break; case eGetNStr: if (txtwin != stdscr) { wmove(txtwin, txt_y, txt_x); rc = wgetnstr(txtwin, buffer, limit); } else { move(txt_y, txt_x); rc = getnstr(buffer, limit); } break; case eMvGetStr: if (txtwin != stdscr) { rc = mvwgetstr(txtwin, txt_y, txt_x, buffer); } else { rc = mvgetstr(txt_y, txt_x, buffer); } break; case eMvGetNStr: if (txtwin != stdscr) { rc = mvwgetnstr(txtwin, txt_y, txt_x, buffer, limit); } else { rc = mvgetnstr(txt_y, txt_x, buffer, limit); } break; case eMaxFlavor: break; } noecho(); (void) wattrset(txtwin, A_NORMAL); wprintw(strwin, "%s:%s", ok_keyname(rc), buffer); wnoutrefresh(strwin); break; default: beep(); break; } doupdate(); } if (level > 1) { delwin(txtwin); delwin(txtbox); } return TRUE; } int main(int argc, char *argv[]) { WINDOW *chrbox; WINDOW *strwin; setlocale(LC_ALL, ""); if (argc < 2) { fprintf(stderr, "usage: %s file\n", argv[0]); return EXIT_FAILURE; } initscr(); chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0); box(chrbox, 0, 0); wnoutrefresh(chrbox); strwin = derwin(chrbox, 4, COLS - 2, 1, 1); test_getstr(1, argv, strwin); endwin(); ExitProgram(EXIT_SUCCESS); } #else int main(void) { printf("This program requires the curses chgat function\n"); ExitProgram(EXIT_FAILURE); } #endif
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