Edit File: test_instr.c
/**************************************************************************** * Copyright (c) 2007 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_instr.c,v 1.4 2007/07/21 19:38:04 tom Exp $ * * Author: Thomas E Dickey * * Demonstrate the instr functions from the curses library. int instr(char *str); int innstr(char *str, int n); int winstr(WINDOW *win, char *str); int winnstr(WINDOW *win, char *str, int n); int mvinstr(int y, int x, char *str); int mvinnstr(int y, int x, char *str, int n); int mvwinstr(WINDOW *win, int y, int x, char *str); int mvwinnstr(WINDOW *win, int y, int x, char *str, int n); */ #include <test.priv.h> #define BASE_Y 6 #define MAX_COLS 1024 static bool Quit(int ch) { return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE); } static void show_1st(WINDOW *win, int line, char *buffer) { mvwaddstr(win, line, 5, buffer); } static void showmore(WINDOW *win, int line, char *buffer) { wmove(win, line, 0); wclrtoeol(win); show_1st(win, line, buffer); } static int test_inchs(int level, char **argv, WINDOW *chrwin, WINDOW *strwin) { WINDOW *txtbox = 0; WINDOW *txtwin = 0; FILE *fp; int ch; int txt_x = 0, txt_y = 0; int base_y; int limit = getmaxx(strwin) - 5; 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]); } while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) { switch (ch) { case KEY_DOWN: case 'j': if (txt_y < getmaxy(txtwin) - 1) txt_y++; else beep(); break; case KEY_UP: case 'k': if (txt_y > base_y) txt_y--; else beep(); break; case KEY_LEFT: case 'h': if (txt_x > 0) txt_x--; else beep(); break; case KEY_RIGHT: case 'l': if (txt_x < getmaxx(txtwin) - 1) txt_x++; else beep(); break; case 'w': test_inchs(level + 1, argv, chrwin, strwin); if (txtbox != 0) { touchwin(txtbox); wnoutrefresh(txtbox); } else { touchwin(txtwin); wnoutrefresh(txtwin); } break; case '-': if (limit > 0) { --limit; } else { beep(); } break; case '+': ++limit; break; default: beep(); break; } mvwprintw(chrwin, 0, 0, "line:"); wclrtoeol(chrwin); if (txtwin != stdscr) { wmove(txtwin, txt_y, txt_x); if (winstr(txtwin, buffer) != ERR) { show_1st(chrwin, 0, buffer); } if (mvwinstr(txtwin, txt_y, txt_x, buffer) != ERR) { showmore(chrwin, 1, buffer); } } else { move(txt_y, txt_x); if (instr(buffer) != ERR) { show_1st(chrwin, 0, buffer); } if (mvinstr(txt_y, txt_x, buffer) != ERR) { showmore(chrwin, 1, buffer); } } wnoutrefresh(chrwin); mvwprintw(strwin, 0, 0, "%4d:", limit); wclrtobot(strwin); if (txtwin != stdscr) { wmove(txtwin, txt_y, txt_x); if (winnstr(txtwin, buffer, limit) != ERR) { show_1st(strwin, 0, buffer); } if (mvwinnstr(txtwin, txt_y, txt_x, buffer, limit) != ERR) { showmore(strwin, 1, buffer); } } else { move(txt_y, txt_x); if (innstr(buffer, limit) != ERR) { show_1st(strwin, 0, buffer); } if (mvinnstr(txt_y, txt_x, buffer, limit) != ERR) { showmore(strwin, 1, buffer); } } wnoutrefresh(strwin); } if (level > 1) { delwin(txtwin); delwin(txtbox); } return TRUE; } int main(int argc, char *argv[]) { WINDOW *chrbox; WINDOW *chrwin; 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); chrwin = derwin(chrbox, 2, COLS - 2, 1, 1); strwin = derwin(chrbox, 2, COLS - 2, 3, 1); test_inchs(1, argv, chrwin, strwin); endwin(); ExitProgram(EXIT_SUCCESS); }
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