From ac36e94341ca73d581f0df39f1c7bbf2138b2845 Mon Sep 17 00:00:00 2001 From: Frederic Culot Date: Mon, 31 Jul 2006 21:00:02 +0000 Subject: Initial revision --- src/io.c | 484 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 484 insertions(+) create mode 100755 src/io.c (limited to 'src/io.c') diff --git a/src/io.c b/src/io.c new file mode 100755 index 0000000..35c5802 --- /dev/null +++ b/src/io.c @@ -0,0 +1,484 @@ +/* $calcurse: io.c,v 1.1 2006/07/31 21:00:03 culot Exp $ */ + +/* + * Calcurse - text-based organizer + * Copyright (c) 2004-2006 Frederic Culot + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + * Send your feedback or comments to : calcurse@culot.org + * Calcurse home page : http://culot.org/calcurse + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "i18n.h" +#include "utils.h" +#include "custom.h" +#include "todo.h" +#include "event.h" +#include "apoint.h" +#include "recur.h" +#include "io.h" +#include "vars.h" + +/* + * Initialization of data paths. The argument cfile is the variable + * which contains the calendar file. If none is given, then the default + * one (~/.calcurse/apts) is taken. If the one given does not exist, it + * is created. + */ +void +io_init(char *cfile) +{ + FILE *data_file; + char *home; + char apts_file[MAX_LENGTH] = ""; + int ch; + + home = getenv("HOME"); + if (home == NULL) { + home = "."; + } + snprintf(path_dir, MAX_LENGTH, "%s/" DIR_NAME, home); + snprintf(path_todo, MAX_LENGTH, "%s/" TODO_PATH, home); + snprintf(path_conf, MAX_LENGTH, "%s/" CONF_PATH, home); + if (cfile == NULL) { + snprintf(path_apts, MAX_LENGTH, "%s/" APTS_PATH, home); + } else { + snprintf(apts_file, MAX_LENGTH, "%s", cfile); + strncpy(path_apts, apts_file, MAX_LENGTH); + /* check if the file exists, otherwise create it */ + data_file = fopen(path_apts, "r"); + if (data_file == NULL) { + printf(_("%s does not exist, create it now [y or n] ? "), path_apts); + ch = getchar(); + switch (ch) { + case 'N': + case 'n': + printf(_("aborting...\n")); + exit(EXIT_FAILURE); + break; + + case 'Y': + case 'y': + data_file = fopen(path_apts, "w"); + if (data_file == NULL) { + perror(path_apts); + exit(EXIT_FAILURE); + } else { + printf(_("%s successfully created\n"),path_apts); + printf(_("starting interactive mode...\n")); + } + break; + + default: + printf(_("aborting...\n")); + exit(EXIT_FAILURE); + break; + } + } + fclose(data_file); + } +} + + /* get data from file */ +void extract_data(char *dst_data, const char *org, int len) +{ + for (;;) { + if (*org == '\n' || *org == '\0') + break; + *dst_data++ = *org++; + } + *dst_data = '\0'; +} + +/* Save the calendar data */ +void +save_cal(bool auto_save, bool confirm_quit, + bool confirm_delete, bool skip_system_dialogs, + bool skip_progress_bar, bool week_begins_on_monday, + int colr, int layout) +{ + FILE *data_file; + struct event_s *k; + struct apoint_s *j; + struct todo_s *i; + char *access_pb = _("Problems accessing data file ..."); + char *config_txt = + "#\n# Calcurse configuration file\n#\n# This file sets the configuration options used by Calcurse. These\n# options are usually set from within Calcurse. A line beginning with \n# a space or tab is considered to be a continuation of the previous line.\n# For a variable to be unset its value must be blank.\n# To set a variable to the empty string its value should be \"\".\n# Lines beginning with \"#\" are comments, and ignored by Calcurse.\n"; + char *save_success = _("The data files were successfully saved"); + char *enter = _("Press [ENTER] to continue"); + bool save = true, show_bar = false; + + if (!skip_progress_bar) show_bar = true; + + /* Save the user configuration. */ + + if (show_bar) progress_bar(save, 1); + data_file = fopen(path_conf, "w"); + if (data_file == (FILE *) 0) + status_mesg(access_pb, ""); + else { + fprintf(data_file, "%s\n", config_txt); + + fprintf(data_file, + "# If this option is set to yes, automatic save is done when quitting\n"); + fprintf(data_file, "auto_save=\n"); + fprintf(data_file, "%s\n", + (auto_save) ? "yes" : "no"); + + fprintf(data_file, + "\n# If this option is set to yes, confirmation is required before quitting\n"); + fprintf(data_file, "confirm_quit=\n"); + fprintf(data_file, "%s\n", + (confirm_quit) ? "yes" : "no"); + + fprintf(data_file, + "\n# If this option is set to yes, confirmation is required before deleting an event\n"); + fprintf(data_file, "confirm_delete=\n"); + fprintf(data_file, "%s\n", + (confirm_delete) ? "yes" : "no"); + + fprintf(data_file, + "\n# If this option is set to yes, messages about loaded and saved data will not be displayed\n"); + fprintf(data_file, "skip_system_dialogs=\n"); + fprintf(data_file, "%s\n", + (skip_system_dialogs) ? "yes" : "no"); + + fprintf(data_file, + "\n# If this option is set to yes, progress bar appearing when saving data will not be displayed\n"); + fprintf(data_file, "skip_progress_bar=\n"); + fprintf(data_file, "%s\n", + (skip_progress_bar) ? "yes" : "no"); + + fprintf(data_file, + "\n# If this option is set to yes, monday is the first day of the week, else it is sunday\n"); + fprintf(data_file, "week_begins_on_monday=\n"); + fprintf(data_file, "%s\n", + (week_begins_on_monday) ? "yes" : "no"); + + fprintf(data_file, + "\n# This is the color theme used for menus (1 to 8) :\n"); + fprintf(data_file, "color-theme=\n"); + fprintf(data_file, "%d\n", colr); + + fprintf(data_file, + "\n# This is the layout of the calendar (1 to 4) :\n"); + fprintf(data_file, "layout=\n"); + fprintf(data_file, "%d\n", layout); + fclose(data_file); + } + + /* Save the todo data file. */ + if (show_bar) progress_bar(save, 2); + data_file = fopen(path_todo, "w"); + if (data_file == (FILE *) 0) + status_mesg(access_pb, ""); + else { + for (i = todolist; i != 0; i = i->next) + fprintf(data_file, "%s\n", i->mesg); + fclose(data_file); + } + + /* + * Save the apts data file, which contains the + * appointments first, and then the events. + * Recursive items are written first. + */ + if (show_bar) progress_bar(save, 3); + data_file = fopen(path_apts, "w"); + if (data_file == (FILE *) 0) + status_mesg(access_pb, ""); + else { + recur_save_data(data_file); + for (j = apointlist; j != 0; j = j->next) + apoint_write(j, data_file); + for (k = eventlist; k != 0; k = k->next) + event_write(k, data_file); + fclose(data_file); + } + + + /* Print a message telling data were saved */ + if (!skip_system_dialogs){ + status_mesg(save_success, enter); + wgetch(swin); + } +} + +/* + * Check what type of data is written in the appointment file, + * and then load either: a new appointment, a new event, or a new + * recursive item (which can also be either an event or an appointment). + */ +void load_app() +{ + FILE *data_file; + int c, is_appointment, is_event, is_recursive; + struct tm start, end, until, *lt; + time_t t; + int id = 0; + int freq; + char type; + char *error = + _("FATAL ERROR in load_app: wrong format in the appointment or event\n"); + + t = time(NULL); + lt = localtime(&t); + start = end = until = *lt; + + data_file = fopen(path_apts, "r"); + for (;;) { + is_appointment = is_event = is_recursive = 0; + c = getc(data_file); + if (c == EOF) + break; + ungetc(c, data_file); + + /* Read the date first: it is common to both events + * and appointments. + */ + if (fscanf(data_file, "%u / %u / %u ", + &start.tm_mon, &start.tm_mday, &start.tm_year) != 3) { + fputs(_("FATAL ERROR in load_app: " + "syntax error in the item date\n"), stderr); + exit(EXIT_FAILURE); + } + + /* Read the next character : if it is an '@' then we have + * an appointment, else if it is an '[' we have en event. + */ + c = getc(data_file); + + if (c == '@') + is_appointment = 1; + else if (c == '[') + is_event = 1; + else { + fputs(_("FATAL ERROR in load_app: " + "no event nor appointment found\n"), stderr); + exit(EXIT_FAILURE); + } + ungetc(c, data_file); + + /* Read the remaining informations. */ + if (is_appointment) { + fscanf(data_file, "@ %u : %u -> %u / %u / %u @ %u : %u ", + &start.tm_hour, &start.tm_min, + &end.tm_mon, &end.tm_mday, &end.tm_year, + &end.tm_hour, &end.tm_min); + } else if (is_event) { + fscanf(data_file, "[%d] ", &id); + } else { /* NOT REACHED */ + fputs(error, stderr); + exit(EXIT_FAILURE); + } + + /* Check if we have a recursive item. */ + c = getc(data_file); + + if (c == '{') { + ungetc(c, data_file); + is_recursive = 1; + fscanf(data_file, "{ %d%c ", &freq, &type); + /* Check if we have an endless recurrent item. */ + c = getc(data_file); + if (c == '}') { + ungetc(c, data_file); + fscanf(data_file, "} "); + until.tm_year = 0; + if (is_appointment) + c = getc(data_file); // useless '|' + } else if (c == '-') { + ungetc(c, data_file); + fscanf(data_file, " -> %u / %u / %u } ", + &until.tm_mon, &until.tm_mday, + &until.tm_year); + if (is_appointment) + c = getc(data_file); // useless '|' + } else { /* NOT REACHED */ + fputs(error, stderr); + exit(EXIT_FAILURE); + } + } else { + if (is_event) // if appointment we have a useless '|' + ungetc(c, data_file); + } + + /* + * Last: read the item description and load it into its + * corresponding linked list, depending on the item type. + */ + if (is_appointment) { + if (is_recursive) { + recur_apoint_scan(data_file, start, end, + type, freq, until); + } else { + apoint_scan(data_file, start, end); + } + } else if (is_event) { + if (is_recursive) { + recur_event_scan(data_file, start, id, + type, freq, until); + } else { + event_scan(data_file, start, id); + } + } else { /* NOT REACHED */ + fputs(error, stderr); + exit(EXIT_FAILURE); + } + } + fclose(data_file); +} + +/* Load the todo data */ +int +load_todo(int colr) +{ + FILE *data_file; + char *mesg_line1 = _("Failed to open todo file"); + char *mesg_line2 = _("Press [ENTER] to continue"); + int nb_tod = 0; + char buf[100], e_todo[100]; + + data_file = fopen(path_todo, "r"); + if (data_file == NULL) { + status_mesg(mesg_line1, mesg_line2); + wgetch(swin); + } + for (;;) { + if (fgets(buf, 99, data_file) == NULL) { + break; + } + extract_data(e_todo, buf, strlen(buf)); + todo_add(e_todo); + ++nb_tod; + } + fclose(data_file); + return nb_tod; +} + +/* Checks if data files exist. If not, create them */ +int check_data_files() +{ + FILE *data_file; + int no_data_file; + + no_data_file = 0; + /* Create the calcurse repertory if not present. */ + mkdir(path_dir, 0700); + + data_file = fopen(path_todo, "r"); + if (data_file == NULL) { + no_data_file++; + data_file = fopen(path_todo, "w"); + if (data_file == NULL) { + perror(path_todo); + return no_data_file; + } + } + fclose(data_file); + + data_file = fopen(path_apts, "r"); + if (data_file == NULL) { + no_data_file++; + data_file = fopen(path_apts, "w"); + if (data_file == NULL) { + perror(path_apts); + return no_data_file; + } + } + fclose(data_file); + + data_file = fopen(path_conf, "r"); + if (data_file == NULL) { + no_data_file++; + data_file = fopen(path_conf, "w"); + if (data_file == NULL) { + perror(path_conf); + return no_data_file; + } + } + fclose(data_file); + return no_data_file; +} + +/* Draw the startup screen */ +void startup_screen(bool skip_dialogs, int no_data_file, int colr) +{ + char *welcome_mesg = _("Welcome to Calcurse. Missing data files were created."); + char *data_mesg = _("Data files found. Data will be loaded now."); + char *enter = _("Press [ENTER] to continue"); + + if (no_data_file != 0) { + status_mesg(welcome_mesg, enter); + wgetch(swin); + } else if (!skip_dialogs){ + status_mesg(data_mesg, enter); + wgetch(swin); + } +} + +/* Draw a progress bar while saving or loading data. */ +void progress_bar(bool save, int progress) +{ + int i, nbd = 4; + char *mesg_sav = _("Saving..."); + char *mesg_load = _("Loading..."); + char *barchar = "|"; + char *data[4] = { + "[ ]", + "[ conf ]", + "[ todo ]", + "[ apts ]"}; + int ipos = strlen(data[1]) + 2; + int epos[4]; + int sleep_time = 125000; + + /* progress bar length init. */ + epos[0] = floor(col / nbd); + epos[1] = 2*epos[0]; + epos[2] = 3*epos[0]; + epos[3] = col - 2; + + /* Display which data is being saved. */ + if (save) + status_mesg(mesg_sav, data[progress]); + else + status_mesg(mesg_load, data[progress]); + + /* Draw the progress bar. */ + mvwprintw(swin, 1, ipos, barchar); + mvwprintw(swin, 1, epos[nbd - 1], barchar); + custom_apply_attr(swin, ATTR_HIGHEST); + for (i = ipos + 1; i < epos[progress]; i++) + mvwaddch(swin, 1, i, ' ' | A_REVERSE); + custom_remove_attr(swin, ATTR_HIGHEST); + wmove(swin, 0, 0); + wrefresh(swin); + usleep(sleep_time); +} -- cgit v1.2.3-54-g00ecf