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Added "scroll" option to /buffer command
This commit is contained in:
Sebastien Helleu
@@ -1189,6 +1189,207 @@ gui_buffer_search_stop (t_gui_window *window)
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gui_input_draw (window->buffer, 1);
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}
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/*
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* gui_buffer_scroll: scroll buffer by # messages or time
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*/
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void
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gui_buffer_scroll (t_gui_window *window, char *scroll)
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{
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int direction, stop, count_msg;
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char time_letter, saved_char;
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time_t old_date, diff_date;
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char *error;
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long number;
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t_gui_line *ptr_line;
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struct tm *date_tmp, line_date, old_line_date;
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if (window->buffer->lines)
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{
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direction = -1;
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number = 0;
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time_letter = ' ';
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// search direction
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if (scroll[0] == '-')
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{
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direction = -1;
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scroll++;
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}
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else if (scroll[0] == '+')
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{
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direction = +1;
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scroll++;
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}
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// search number and letter
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char *pos = scroll;
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while (pos && pos[0] && isdigit (pos[0]))
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{
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pos++;
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}
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if (pos)
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{
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if (pos == scroll)
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{
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if (pos[0])
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time_letter = scroll[0];
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}
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else
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{
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if (pos[0])
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time_letter = pos[0];
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saved_char = pos[0];
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pos[0] = '\0';
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error = NULL;
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number = strtol (scroll, &error, 10);
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if (!error || (error[0] != '\0'))
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number = 0;
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pos[0] = saved_char;
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}
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}
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/* at least number or letter has to he given */
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if ((number == 0) && (time_letter == ' '))
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return;
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// do the scroll!
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stop = 0;
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count_msg = 0;
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if (direction < 0)
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ptr_line = (window->start_line) ?
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window->start_line : window->buffer->last_line;
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else
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ptr_line = (window->start_line) ?
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window->start_line : window->buffer->lines;
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old_date = ptr_line->date;
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date_tmp = localtime (&old_date);
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memcpy (&old_line_date, date_tmp, sizeof (struct tm));
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while (ptr_line)
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{
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ptr_line = (direction < 0) ? ptr_line->prev_line : ptr_line->next_line;
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if (ptr_line)
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{
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if (time_letter == ' ')
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{
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count_msg++;
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if (count_msg >= number)
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stop = 1;
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}
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else
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{
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date_tmp = localtime (&(ptr_line->date));
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memcpy (&line_date, date_tmp, sizeof (struct tm));
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if (old_date > ptr_line->date)
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diff_date = old_date - ptr_line->date;
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else
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diff_date = ptr_line->date - old_date;
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switch (time_letter)
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{
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case 's': /* seconds */
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if (number == 0)
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{
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/* stop if line has different second */
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if ((line_date.tm_sec != old_line_date.tm_sec)
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|| (line_date.tm_min != old_line_date.tm_min)
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|| (line_date.tm_hour != old_line_date.tm_hour)
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|| (line_date.tm_mday != old_line_date.tm_mday)
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|| (line_date.tm_mon != old_line_date.tm_mon)
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|| (line_date.tm_year != old_line_date.tm_year))
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if (line_date.tm_sec != old_line_date.tm_sec)
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stop = 1;
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}
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else if (diff_date >= number)
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stop = 1;
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break;
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case 'm': /* minutes */
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if (number == 0)
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{
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/* stop if line has different minute */
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if ((line_date.tm_min != old_line_date.tm_min)
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|| (line_date.tm_hour != old_line_date.tm_hour)
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|| (line_date.tm_mday != old_line_date.tm_mday)
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|| (line_date.tm_mon != old_line_date.tm_mon)
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|| (line_date.tm_year != old_line_date.tm_year))
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stop = 1;
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}
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else if (diff_date >= number * 60)
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stop = 1;
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break;
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case 'h': /* hours */
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if (number == 0)
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{
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/* stop if line has different hour */
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if ((line_date.tm_hour != old_line_date.tm_hour)
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|| (line_date.tm_mday != old_line_date.tm_mday)
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|| (line_date.tm_mon != old_line_date.tm_mon)
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|| (line_date.tm_year != old_line_date.tm_year))
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stop = 1;
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}
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else if (diff_date >= number * 60 * 60)
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stop = 1;
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break;
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case 'd': /* days */
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if (number == 0)
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{
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/* stop if line has different day */
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if ((line_date.tm_mday != old_line_date.tm_mday)
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|| (line_date.tm_mon != old_line_date.tm_mon)
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|| (line_date.tm_year != old_line_date.tm_year))
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stop = 1;
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}
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else if (diff_date >= number * 60 * 60 * 24)
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stop = 1;
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break;
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case 'M': /* months */
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if (number == 0)
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{
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/* stop if line has different month */
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if ((line_date.tm_mon != old_line_date.tm_mon)
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|| (line_date.tm_year != old_line_date.tm_year))
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stop = 1;
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}
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/* we consider month is 30 days, who will find I'm too
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lazy to code exact date diff ? ;) */
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else if (diff_date >= number * 60 * 60 * 24 * 30)
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stop = 1;
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break;
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case 'y': /* years */
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if (number == 0)
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{
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/* stop if line has different year */
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if (line_date.tm_year != old_line_date.tm_year)
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stop = 1;
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}
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/* we consider year is 365 days, who will find I'm too
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lazy to code exact date diff ? ;) */
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else if (diff_date >= number * 60 * 60 * 24 * 365)
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stop = 1;
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break;
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}
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}
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if (stop)
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{
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window->start_line = ptr_line;
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window->start_line_pos = 0;
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window->first_line_displayed =
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(window->start_line == window->buffer->lines);
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gui_chat_draw (window->buffer, 1);
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gui_status_draw (window->buffer, 0);
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return;
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}
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}
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}
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if (direction < 0)
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gui_window_scroll_top (window);
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else
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gui_window_scroll_bottom (window);
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}
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}
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/*
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* gui_buffer_print_log: print buffer infos in log (usually for crash dump)
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*/
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