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interface.ml
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interface.ml
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(* Wyrd -- a curses-based front-end for Remind
* Copyright (C) 2005, 2006, 2007, 2008, 2010, 2011-2013 Paul Pelzl
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2,
* as published by the Free Software Foundation.
*
* 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
*
* Bug reports can be entered at http://bugs.launchpad.net/wyrd .
* For anything else, feel free to contact Paul Pelzl at <[email protected]>.
*)
(* interface.ml
* This file defines the data structure (a record) that stores the
* interface state. *)
open Curses;;
open Rcfile;;
exception Not_handled;;
(* help_win is provided as an option, because it may be dropped if
* the screen width is too small *)
type screen_t = {
stdscr : window;
lines : int;
cols : int;
help_win : window;
hw_cols : int;
timed_win : window;
tw_lines : int;
tw_cols : int;
calendar_win : window;
cw_lines : int;
cw_cols : int;
untimed_win : window;
uw_lines : int;
uw_cols : int;
msg_win : window;
mw_lines : int;
mw_cols : int;
err_win : window;
ew_lines : int;
ew_cols : int
}
type zoom_t = Hour | HalfHour | QuarterHour
type side_t = Left | Right
(* keep track of information needed for a line of
* the timed reminders window *)
type timed_lineinfo_t = {
tl_filename : string;
tl_linenum : string;
tl_timestr : string;
tl_msg : string;
tl_start : float
}
(* keep track of information needed for a line of
* the untimed reminders window *)
type untimed_lineinfo_t = {
ul_filename : string;
ul_linenum : string;
ul_msg : string
}
type extended_mode_t = ExtendedSearch | ExtendedGoto | ExtendedQuick
type entry_mode_t = Normal | Extended of extended_mode_t
module SMap = Map.Make(String)
(* everything you need to know about the interface state goes in this variable *)
type interface_state_t = {
version : string; (* program version string *)
scr : screen_t; (* curses screen with two or three subwindows *)
run_wyrd : bool; (* exit when run_wyrd becomes false *)
top_timestamp : float; (* controls what portion of the schedule is viewable *)
top_untimed : int; (* controls what portion of untimed reminders are viewable *)
top_desc : int; (* controls what portion of the reminder descriptions are viewable *)
selected_side : side_t; (* controls which window has the focus *)
left_selection : int; (* controls which element of the left window is selected *)
right_selection : int; (* controls which element of the right window is selected *)
zoom_level : zoom_t; (* controls the resolution of the timed window *)
timed_lineinfo : timed_lineinfo_t list array; (* information about the lines of the timed reminder window *)
untimed_lineinfo : untimed_lineinfo_t option array; (* same as above, for untimed window *)
len_untimed : int; (* number of entries in the untimed reminders list *)
remfile_mtimes : float SMap.t; (* for each remfile, maps filename to stat mtime *)
search_regex : Str.regexp; (* most recent search string *)
extended_input : string; (* buffer to hold search/goto/quick event info *)
entry_mode : entry_mode_t; (* decides which mode the interface is in *)
last_timed_refresh: float; (* the last time the timed window had a complete refresh *)
rem_buffer : string; (* buffer that acts as a clipboard for REM strings *)
track_home : bool; (* true if cursor position should "stick" to current time *)
resize_failed_win : window option (* if a resize fails, this holds a window pointer for an error msg. *)
}
(* round to the nearest displayed time value *)
let round_time zoom t =
match zoom with
|Hour -> {
t with Unix.tm_sec = 0;
Unix.tm_min = 0
}
|HalfHour -> {
t with Unix.tm_sec = 0;
Unix.tm_min = if t.Unix.tm_min >= 30 then 30 else 0
}
|QuarterHour -> {
t with Unix.tm_sec = 0;
Unix.tm_min = if t.Unix.tm_min >= 45 then 45
else if t.Unix.tm_min >= 30 then 30
else if t.Unix.tm_min >= 15 then 15
else 0
}
(* create and initialize an interface with default settings *)
let make (std : screen_t) =
let curr_time = Unix.localtime ((Unix.time ()) -. 60. *. 60.) in
let (rounded_time, _) = Unix.mktime (round_time Hour curr_time) in {
version = Version.version;
scr = std;
run_wyrd = true;
top_timestamp = if !Rcfile.center_cursor then
rounded_time -. 60.0 *. 60.0 *. (float_of_int ((std.tw_lines / 2) - 2))
else
rounded_time -. 60.0 *. 60.0;
top_untimed = 0;
top_desc = 0;
selected_side = Left;
left_selection = if !Rcfile.center_cursor then (std.tw_lines / 2) - 1 else 2;
right_selection = 1;
zoom_level = Hour;
timed_lineinfo = Array.make std.tw_lines [];
untimed_lineinfo = Array.make std.uw_lines None;
len_untimed = 0;
remfile_mtimes = SMap.empty;
search_regex = Str.regexp "";
extended_input = "";
entry_mode = Normal;
last_timed_refresh = 0.0;
rem_buffer = "";
track_home = !Rcfile.home_sticky;
resize_failed_win = None
}
(* time increment in float seconds *)
let time_inc (iface : interface_state_t) =
match iface.zoom_level with
| Hour -> 60.0 *. 60.0
| HalfHour -> 30.0 *. 60.0
| QuarterHour -> 15.0 *. 60.0
(* time increment in int minutes *)
let time_inc_min (iface : interface_state_t) =
match iface.zoom_level with
| Hour -> 60
| HalfHour -> 30
| QuarterHour -> 15
let timestamp_of_line iface line =
iface.top_timestamp +. ((float_of_int line) *. (time_inc iface))
(* arch-tag: DO_NOT_CHANGE_2e912989-cdb2-498a-9bb3-b6d76e94f3a5 *)