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-rwxr-xr-xsrc/utils.c614
1 files changed, 614 insertions, 0 deletions
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+/* $calcurse: utils.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 <ncurses.h>
+#include <time.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <math.h>
+
+#include "i18n.h"
+#include "utils.h"
+#include "custom.h"
+#include "vars.h"
+
+
+/*
+ * Print a message in the status bar.
+ * Message texts for first line and second line are to be provided.
+ */
+
+void status_mesg(char *mesg_line1, char *mesg_line2)
+{
+ erase_window_part(swin, 0, 0, col, 2);
+ custom_apply_attr(swin, ATTR_HIGHEST);
+ mvwprintw(swin, 0, 0, mesg_line1);
+ mvwprintw(swin, 1, 0, mesg_line2);
+ custom_remove_attr(swin, ATTR_HIGHEST);
+}
+
+/*
+ * Erase part of a window
+ */
+void erase_window_part(WINDOW *win, int first_col, int first_row,
+ int last_col, int last_row)
+{
+ int c, r;
+
+ for (r = first_row; r <= last_row; r++){
+ for (c = first_col; c <= last_col; c++){
+ mvwprintw(win, r, c, " ");
+ }
+ }
+ wnoutrefresh(win);
+}
+
+/* draws a popup window */
+WINDOW * popup(int pop_row, int pop_col,
+ int pop_y, int pop_x, char *pop_lab)
+{
+ char *txt_pop = _("Press any key to continue...");
+ char label[80];
+ WINDOW *popup_win;
+
+ popup_win = newwin(pop_row, pop_col, pop_y, pop_x);
+ custom_apply_attr(popup_win, ATTR_HIGHEST);
+ box(popup_win, 0, 0);
+ sprintf(label, "%s", pop_lab);
+ win_show(popup_win, label);
+ mvwprintw(popup_win, pop_row - 2, pop_col - (strlen(txt_pop) + 1), "%s",
+ txt_pop);
+ custom_remove_attr(popup_win, ATTR_HIGHEST);
+ wnoutrefresh(popup_win);
+ doupdate();
+ return popup_win;
+}
+
+/* prints in middle of a panel */
+void
+print_in_middle(WINDOW * win, int starty, int startx, int width, char *string)
+{
+ int length, x, y;
+ float temp;
+
+ if (win == NULL)
+ win = stdscr;
+ getyx(win, y, x);
+ if (startx != 0)
+ x = startx;
+ if (starty != 0)
+ y = starty;
+ if (width == 0)
+ width = 80;
+
+ length = strlen(string);
+ temp = (width - length) / 2;
+ x = startx + (int) temp;
+ custom_apply_attr(win, ATTR_HIGHEST);
+ mvwprintw(win, y, x, "%s", string);
+ custom_remove_attr(win, ATTR_HIGHEST);
+}
+
+/*
+ * Getstring allows to get user input and to print it on a window,
+ * even if noecho() is on.
+ */
+void getstring(win, colr, string, start_x, start_y)
+WINDOW *win;
+int colr;
+char *string;
+int start_x, start_y;
+{
+ int ch;
+ int charcount = 0;
+
+ custom_apply_attr(win, ATTR_HIGHEST);
+ if (start_x != -1)
+ wmove(win, start_y, start_x);
+
+ while ((ch = wgetch(win)) != '\n') {
+ if ((ch == KEY_BACKSPACE) ||
+ (ch == 330) ||
+ (ch == 263) ||
+ (ch == 127) ||
+ (ch == CTRL('H')) ) {
+ if (charcount > 0) {
+ string--;
+ charcount--;
+ wmove(win, start_y, start_x + charcount);
+ waddch(win, ' ');
+ wmove(win, start_y, start_x + charcount);
+ }
+ } else {
+ *string++ = ch;
+ charcount++;
+ waddch(win, ch);
+ }
+ doupdate();
+ }
+ *string = 0;
+ custom_remove_attr(win, ATTR_HIGHEST);
+ return;
+}
+
+/* checks if a string is only made of digits */
+int is_all_digit(char *string)
+{
+ int digit, i;
+ int all_digit;
+
+ digit = 0;
+ all_digit = 0;
+
+ for (i = 0; i <= strlen(string); i++)
+ if (isdigit(string[i]) != 0)
+ digit++;
+ if (digit == strlen(string))
+ all_digit = 1;
+ return all_digit;
+}
+
+/* draw panel border in color */
+void border_color(WINDOW * window, int bcolr)
+{
+ int color_attr = A_BOLD;
+ int no_color_attr = A_BOLD;
+
+ if (colorize) {
+ wattron(window, color_attr | COLOR_PAIR(bcolr));
+ box(window, 0, 0);
+ } else {
+ wattron(window, no_color_attr);
+ box(window, 0, 0);
+ }
+
+ if (colorize) {
+ wattroff(window, color_attr | COLOR_PAIR(bcolr));
+ } else {
+ wattroff(window, no_color_attr);
+ }
+
+ wnoutrefresh(window);
+}
+
+/* draw panel border without any color */
+void border_nocolor(WINDOW * window)
+{
+ int colr = 9;
+ int color_attr = A_BOLD;
+ int no_color_attr = A_DIM;
+
+ if (colorize) {
+ wattron(window, color_attr | COLOR_PAIR(colr));
+ } else {
+ wattron(window, no_color_attr);
+ }
+
+ box(window, 0, 0);
+
+ if (colorize) {
+ wattroff(window, color_attr | COLOR_PAIR(colr));
+ } else {
+ wattroff(window, no_color_attr);
+ }
+
+ wnoutrefresh(window);
+}
+
+ /* prints and scroll text in a window */
+void scroller(WINDOW *win, char *mesg, int x, int y, int nb_row, int nb_col)
+{
+ int x_offset = 3;
+ int y_offset = 3;
+ int text_len = nb_col - 2 * x_offset;
+ int text_max_row = nb_row - 3;
+ int nlin, i, j, k;
+ int last_blank_i, last_blank_j;
+ char buf[] = " ";
+ char *next_mesg = _("-- Press 'N' for next page --");
+ char *prev_mesg = _("-- Press 'P' for previous page --");
+ int ch;
+ int which_page; //first page : 0, second page : 1
+
+ i = 0; //position in the message
+ j = 0; //x position on the current line
+ nlin = 1; //line number
+ last_blank_j = 0;
+ last_blank_i = 0;
+ which_page = 0;
+
+ while (i <= strlen(mesg)) {
+ if ((i == strlen(mesg)) & (which_page == 1)) {
+ // we have finished writing text and we are on second page
+ custom_apply_attr(win, ATTR_HIGHEST);
+ mvwprintw(win, nb_row - 2,
+ nb_col - (strlen(prev_mesg) + 2), "%s",
+ prev_mesg);
+ custom_remove_attr(win, ATTR_HIGHEST);
+ wmove(swin, 0, 0);
+ wnoutrefresh(win);
+ wnoutrefresh(swin);
+ doupdate();
+ ch = wgetch(win);
+ if ( (ch == 'P') | (ch == 'p') ) {
+ erase_window_part(win, y + 1, x + 3, nb_col - 2, nb_row - 2);
+ nlin = 1;
+ j = 0;
+ i = 0;
+ which_page = 0;
+ } else { //erase last line and exit next-prev page mode
+ for (k = 1; k < nb_col - 2; k++)
+ mvwprintw(win, nb_row - 2, k, " ");
+ break;
+ }
+ }
+ if (nlin == text_max_row - 2) { // we reach the last line
+ custom_apply_attr(win, ATTR_HIGHEST);
+ mvwprintw(win, nb_row - 2,
+ nb_col - (strlen(next_mesg) + 2), "%s",
+ next_mesg);
+ custom_remove_attr(win, ATTR_HIGHEST);
+ wmove(swin, 0, 0);
+ wnoutrefresh(win);
+ wnoutrefresh(swin);
+ doupdate();
+ ch = wgetch(win);
+ if ( (ch == 'N') | (ch == 'n') ) {
+ erase_window_part(win, y + 1, x + 3, nb_col - 2, nb_row - 2);
+ nlin = 1;
+ j = 0;
+ which_page = 1;
+ } else {
+ for (k = 1; k < nb_col - 2; k++)
+ mvwprintw(win, nb_row - 2, k, " ");
+ break;
+ }
+ }
+ //write text
+ strncpy(buf, mesg + i, 1);
+ i++;
+ j++;
+ if ((strncmp(buf, "§", 1) == 0)) { //§ is the character for a new line
+ buf[0] = '\0';
+ mvwprintw(win, x + x_offset + nlin, y + y_offset + j,
+ "%s", buf);
+ nlin++;
+ j = 0;
+ } else {
+ if (j == text_len - 1) { // if we reach the terminal border
+ for (k = last_blank_j; k <= text_len - 1;
+ k++)
+ mvwprintw(win, x + x_offset + nlin,
+ y + y_offset + k, " ");
+ nlin++;
+ i = last_blank_i;
+ j = 0;
+ } else {
+ if ((strncmp(buf, " ", 1) == 0)) //space between words
+ {
+ last_blank_j = j; //save position
+ last_blank_i = i;
+ }
+ mvwprintw(win, x + x_offset + nlin,
+ y + y_offset + j, "%s", buf);
+ }
+ }
+ }
+ wmove(swin, 0, 0);
+ wnoutrefresh(win);
+ wnoutrefresh(swin);
+}
+
+/* Draws the status bar */
+void status_bar(int which_pan, int colr, int nc_bar, int nl_bar)
+{
+ int nb_item_cal, nb_item_oth;
+ int len_let, len_des, spc_lad;
+ int spc_bet_cal_itm, spc_bet_oth_itm;
+ int len_cal_itm, len_oth_itm;
+
+ nb_item_cal = 10; /* max item number to display in status bar */
+ nb_item_cal = ceil(nb_item_cal / 2); /* two lines to display items */
+ nb_item_oth = 12;
+ nb_item_oth = ceil(nb_item_oth / 2);
+ len_let = 3;
+ len_des = 8;
+ spc_lad = 1;
+
+ spc_bet_cal_itm =
+ floor((col -
+ nb_item_cal * (len_let + len_des +
+ spc_lad)) / nb_item_cal);
+ spc_bet_oth_itm =
+ floor((col -
+ nb_item_oth * (len_let + len_des +
+ spc_lad)) / nb_item_oth);
+ len_cal_itm = len_let + spc_lad + len_des + spc_bet_cal_itm;
+ len_oth_itm = len_let + spc_lad + len_des + spc_bet_oth_itm;
+
+ erase_window_part(swin, 0, 0, nc_bar, nl_bar);
+ if (which_pan == 0) {
+ custom_apply_attr(swin, ATTR_HIGHEST);
+ mvwprintw(swin, 0, 0, " ?");
+ mvwprintw(swin, 1, 0, " Q");
+ mvwprintw(swin, 0, len_cal_itm, " R");
+ mvwprintw(swin, 1, len_cal_itm, " S");
+ mvwprintw(swin, 0, 2 * len_cal_itm, "H/L");
+ mvwprintw(swin, 1, 2 * len_cal_itm, "J/K");
+ mvwprintw(swin, 0, 3 * len_cal_itm, " G");
+ mvwprintw(swin, 1, 3 * len_cal_itm, "Tab");
+ mvwprintw(swin, 0, 4 * len_cal_itm, " C");
+ custom_remove_attr(swin, ATTR_HIGHEST);
+ wnoutrefresh(swin);
+
+ mvwprintw(swin, 0, len_let + spc_lad, _("Help"));
+ mvwprintw(swin, 1, len_let + spc_lad, _("Quit"));
+ mvwprintw(swin, 0, len_cal_itm + len_let + spc_lad,
+ _("Redraw"));
+ mvwprintw(swin, 1, len_cal_itm + len_let + spc_lad, _("Save"));
+ mvwprintw(swin, 0, 2 * len_cal_itm + len_let + spc_lad,
+ _("-/+1 Day"));
+ mvwprintw(swin, 1, 2 * len_cal_itm + len_let + spc_lad,
+ _("-/+1 Week"));
+ mvwprintw(swin, 0, 3 * len_cal_itm + len_let + spc_lad,
+ _("GoTo"));
+ mvwprintw(swin, 1, 3 * len_cal_itm + len_let + spc_lad,
+ _("Chg View"));
+ mvwprintw(swin, 0, 4 * len_cal_itm + len_let + spc_lad,
+ _("Config"));
+ } else {
+ custom_apply_attr(swin, ATTR_HIGHEST);
+ mvwprintw(swin, 0, 0, " ?");
+ mvwprintw(swin, 1, 0, " Q");
+ mvwprintw(swin, 0, len_oth_itm, " R");
+ mvwprintw(swin, 1, len_oth_itm, " S");
+ mvwprintw(swin, 0, 2 * len_oth_itm, "J/K");
+ mvwprintw(swin, 1, 2 * len_oth_itm, "Tab");
+ mvwprintw(swin, 0, 3 * len_oth_itm, " A");
+ mvwprintw(swin, 1, 3 * len_oth_itm, " D");
+ mvwprintw(swin, 0, 4 * len_oth_itm, " G");
+ mvwprintw(swin, 1, 4 * len_oth_itm, " V");
+ mvwprintw(swin, 0, 5 * len_oth_itm, " C");
+ custom_remove_attr(swin, ATTR_HIGHEST);
+ wnoutrefresh(swin);
+
+ mvwprintw(swin, 0, len_let + spc_lad, _("Help"));
+ mvwprintw(swin, 1, len_let + spc_lad, _("Quit"));
+ mvwprintw(swin, 0, len_oth_itm + len_let + spc_lad,
+ _("Redraw"));
+ mvwprintw(swin, 1, len_oth_itm + len_let + spc_lad, _("Save"));
+ mvwprintw(swin, 0, 2 * len_oth_itm + len_let + spc_lad,
+ _("Up/Down"));
+ mvwprintw(swin, 1, 2 * len_oth_itm + len_let + spc_lad,
+ _("Chg View"));
+ mvwprintw(swin, 0, 3 * len_oth_itm + len_let + spc_lad,
+ _("Add Item"));
+ mvwprintw(swin, 1, 3 * len_oth_itm + len_let + spc_lad,
+ _("Del Item"));
+ mvwprintw(swin, 0, 4 * len_oth_itm + len_let + spc_lad,
+ _( "GoTo"));
+ mvwprintw(swin, 1, 4 * len_oth_itm + len_let + spc_lad,
+ _("View"));
+ mvwprintw(swin, 0, 5 * len_oth_itm + len_let + spc_lad,
+ _("Config"));
+ }
+ wnoutrefresh(swin);
+}
+
+long date2sec(unsigned year, unsigned month, unsigned day, unsigned hour,
+ unsigned min)
+{
+ struct tm start, *lt;
+ time_t tstart, t;
+
+ t = time(NULL);
+ lt = localtime(&t);
+ start = *lt;
+
+ start.tm_mon = month;
+ start.tm_mday = day;
+ start.tm_year = year;
+ start.tm_hour = hour;
+ start.tm_min = min;
+ start.tm_sec = 0;
+ start.tm_isdst = -1;
+ start.tm_year -= 1900;
+ start.tm_mon--;
+ tstart = mktime(&start);
+ if (tstart == -1) {
+ fputs(_("FATAL ERROR in date2sec: failure in mktime\n"), stderr);
+ fprintf(stderr, "%u %u %u %u %u\n", year, month, day, hour, min);
+ exit(EXIT_FAILURE);
+ }
+ return tstart;
+}
+
+/*
+ * Returns the date in seconds from year 1900.
+ * If no date is entered, current date is chosen.
+ */
+long
+get_sec_date(int year, int month, int day)
+{
+ struct tm *ptrtime;
+ time_t timer;
+ long long_date;
+ char current_day[3], current_month[3] ,current_year[5];
+
+ if (year == 0 && month == 0 && day == 0) {
+ timer = time(NULL);
+ ptrtime = localtime(&timer);
+ strftime(current_day, 3, "%d", ptrtime);
+ strftime(current_month, 3, "%m", ptrtime);
+ strftime(current_year, 5, "%Y", ptrtime);
+ month = atoi(current_month);
+ day = atoi(current_day);
+ year = atoi(current_year);
+
+ }
+ long_date = date2sec(year, month, day, 0, 0);
+ return long_date;
+}
+
+long min2sec(unsigned minutes)
+{
+ return minutes * 60;
+}
+
+/*
+ * Checks if a time has a good format.
+ * The format could be either HH:MM or H:MM or MM, and we should have:
+ * 0 <= HH <= 24 and 0 <= MM < 999.
+ * This function returns 1 if the entered time is correct and in
+ * [h:mm] or [hh:mm] format, and 2 if the entered time is correct and entered
+ * in [mm] format.
+ */
+int check_time(char *string)
+{
+ int ok = 0;
+ char hour[] = " ";
+ char minutes[] = " ";
+
+ if ( // format test [MM]
+ ((strlen(string) == 2) || (strlen(string) == 3)) &
+ (isdigit(string[0]) != 0) &
+ (isdigit(string[1]) != 0)
+ ) { // check if we have a valid time
+ strncpy(minutes, string, 2);
+ if ( atoi(minutes) >= 0)
+ ok = 2;
+ }
+
+ else if ( // format test [H:MM]
+ (strlen(string) == 4) &
+ (isdigit(string[0]) != 0) &
+ (isdigit(string[2]) != 0) &
+ (isdigit(string[3]) != 0) & (string[1] == ':')
+ ) { // check if we have a valid time
+ strncpy(hour, string, 1);
+ strncpy(minutes, string + 2, 2);
+ if ((atoi(hour) <= 24) & (atoi(hour) >=
+ 0) & (atoi(minutes) <
+ 60) & (atoi(minutes) >= 0))
+ ok = 1;
+ }
+
+ else if ( //format test [HH:MM]
+ (strlen(string) == 5) &
+ (isdigit(string[0]) != 0) &
+ (isdigit(string[1]) != 0) &
+ (isdigit(string[3]) != 0) &
+ (isdigit(string[4]) != 0) & (string[2] == ':')
+ ) { // check if we have a valid time
+ strncpy(hour, string, 2);
+ strncpy(minutes, string + 3, 2);
+ if ((atoi(hour) <= 24) & (atoi(hour) >=
+ 0) & (atoi(minutes) <
+ 60) & (atoi(minutes) >= 0))
+ ok = 1;
+ }
+
+ return ok;
+}
+
+/*
+ * Display a scroll bar when there are so many items that they
+ * can not be displayed inside the corresponding panel.
+ */
+void draw_scrollbar(WINDOW *win, int y, int x, int length,
+ int bar_top, int bar_bottom, bool hilt)
+{
+ mvwvline(win, bar_top, x, ACS_VLINE, bar_bottom - bar_top);
+ if (hilt)
+ custom_apply_attr(win, ATTR_HIGHEST);
+ wattron(win, A_REVERSE);
+ mvwvline(win, y, x, ' ', length);
+ wattroff(win, A_REVERSE);
+ if (hilt)
+ custom_remove_attr(win, ATTR_HIGHEST);
+}
+
+/*
+ * Print an item (either an appointment, event, or todo) in a
+ * popup window. This is useful if an item description is too
+ * long to fit in its corresponding panel window.
+ */
+void item_in_popup(char *saved_a_start, char *saved_a_end, char *msg,
+ char *pop_title)
+{
+ WINDOW *popup_win;
+
+ popup_win = popup(row - 4, col - 2, 1, 1, pop_title);
+ if (strncmp(pop_title, _("Appointment"), 11) == 0) {
+ mvwprintw(popup_win, 4, 4, " - %s -> %s",
+ saved_a_start, saved_a_end);
+ }
+ scroller(popup_win, msg, 1, 1, row - 4, col - 2);
+ wmove(swin, 0, 0);
+ doupdate();
+ wgetch(popup_win);
+ delwin(popup_win);
+}
+
+/* Show the window with a border and a label */
+void win_show(WINDOW * win, char *label)
+{
+ int startx, starty, height, width;
+
+ getbegyx(win, starty, startx);
+ getmaxyx(win, height, width);
+
+ box(win, 0, 0);
+ mvwaddch(win, 2, 0, ACS_LTEE);
+ mvwhline(win, 2, 1, ACS_HLINE, width - 2);
+ mvwaddch(win, 2, width - 1, ACS_RTEE);
+
+ print_in_middle(win, 1, 0, width, label);
+}
+
+/*
+ * Print an item description in the corresponding panel window.
+ */
+void display_item(WINDOW *win, int incolor, char *msg, int len,
+ int y, int x)
+{
+ char buf[len];
+
+ if (incolor == 0)
+ custom_apply_attr(win, ATTR_HIGHEST);
+ if (strlen(msg) < len) {
+ mvwprintw(win, y, x, "%s", msg);
+ } else {
+ strncpy(buf, msg, len - 1);
+ buf[len - 1] = '\0';
+ mvwprintw(win, y, x, "%s...", buf);
+ }
+ if (incolor == 0)
+ custom_remove_attr(win, ATTR_HIGHEST);
+}
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