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freebsd-skq/stand/lua/drawer.lua
kevans 2d1c4f37d3 lualoader: Move carousel storage out into config 
Carousel storage doesn't need to happen in the menu module, and indeed
storing it there introduces a circular reference between drawer and menu
that only works because of global pollution in loader.lua.

Carousel choices generally map to config entries anyways, making it as good
of place as any to store these. Move {get,set}CarouselIndex functionality
out into config so that drawer and menu may both use it. If we had more
carousel functionality, it might make sense to create a carousel module, but
this is not the case.
2018-02-20 18:04:08 +00:00

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--
-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
-- Copyright (c) 2018 Kyle Evans <kevans@FreeBSD.org>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
-- 1. Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
-- 2. Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-- SUCH DAMAGE.
--
-- $FreeBSD$
--
local color = require("color");
local config = require("config");
local core = require("core");
local screen = require("screen");
local drawer = {};
local fbsd_logo;
local beastie_color;
local beastie;
local fbsd_logo_v;
local orb;
local none;
local none_shifted = false;
local menu_entry_name = function(drawing_menu, entry)
local name_handler = drawer.menu_name_handlers[entry.entry_type];
if (name_handler ~= nil) then
return name_handler(drawing_menu, entry);
end
return entry.name();
end
local shift_brand_text = function(shift)
drawer.brand_position.x = drawer.brand_position.x + shift.x;
drawer.brand_position.y = drawer.brand_position.y + shift.y;
drawer.menu_position.x = drawer.menu_position.x + shift.x;
drawer.menu_position.y = drawer.menu_position.y + shift.y;
drawer.box_pos_dim.x = drawer.box_pos_dim.x + shift.x;
drawer.box_pos_dim.y = drawer.box_pos_dim.y + shift.y;
end
fbsd_logo = {
" ______ ____ _____ _____ ",
" | ____| | _ \\ / ____| __ \\ ",
" | |___ _ __ ___ ___ | |_) | (___ | | | |",
" | ___| '__/ _ \\/ _ \\| _ < \\___ \\| | | |",
" | | | | | __/ __/| |_) |____) | |__| |",
" | | | | | | || | | |",
" |_| |_| \\___|\\___||____/|_____/|_____/ "
};
beastie_color = {
" \027[31m, ,",
" /( )`",
" \\ \\___ / |",
" /- \027[37m_\027[31m `-/ '",
" (\027[37m/\\/ \\\027[31m \\ /\\",
" \027[37m/ / |\027[31m ` \\",
" \027[34mO O \027[37m) \027[31m/ |",
" \027[37m`-^--'\027[31m`< '",
" (_.) _ ) /",
" `.___/` /",
" `-----' /",
" \027[33m<----.\027[31m __ / __ \\",
" \027[33m<----|====\027[31mO)))\027[33m==\027[31m) \\) /\027[33m====|",
" \027[33m<----'\027[31m `--' `.__,' \\",
" | |",
" \\ / /\\",
" \027[36m______\027[31m( (_ / \\______/",
" \027[36m,' ,-----' |",
" `--{__________)\027[37m"
};
beastie = {
" , ,",
" /( )`",
" \\ \\___ / |",
" /- _ `-/ '",
" (/\\/ \\ \\ /\\",
" / / | ` \\",
" O O ) / |",
" `-^--'`< '",
" (_.) _ ) /",
" `.___/` /",
" `-----' /",
" <----. __ / __ \\",
" <----|====O)))==) \\) /====|",
" <----' `--' `.__,' \\",
" | |",
" \\ / /\\",
" ______( (_ / \\______/",
" ,' ,-----' |",
" `--{__________)"
};
fbsd_logo_v = {
" ______",
" | ____| __ ___ ___ ",
" | |__ | '__/ _ \\/ _ \\",
" | __|| | | __/ __/",
" | | | | | | |",
" |_| |_| \\___|\\___|",
" ____ _____ _____",
" | _ \\ / ____| __ \\",
" | |_) | (___ | | | |",
" | _ < \\___ \\| | | |",
" | |_) |____) | |__| |",
" | | | |",
" |____/|_____/|_____/"
};
orb_color = {
" \027[31m``` \027[31;1m`\027[31m",
" s` `.....---...\027[31;1m....--.``` -/\027[31m",
" +o .--` \027[31;1m/y:` +.\027[31m",
" yo`:. \027[31;1m:o `+-\027[31m",
" y/ \027[31;1m-/` -o/\027[31m",
" .- \027[31;1m::/sy+:.\027[31m",
" / \027[31;1m`-- /\027[31m",
" `: \027[31;1m:`\027[31m",
" `: \027[31;1m:`\027[31m",
" / \027[31;1m/\027[31m",
" .- \027[31;1m-.\027[31m",
" -- \027[31;1m-.\027[31m",
" `:` \027[31;1m`:`",
" \027[31;1m.-- `--.",
" .---.....----.\027[37m"
};
orb = {
" ``` `",
" s` `.....---.......--.``` -/",
" +o .--` /y:` +.",
" yo`:. :o `+-",
" y/ -/` -o/",
" .- ::/sy+:.",
" / `-- /",
" `: :`",
" `: :`",
" / /",
" .- -.",
" -- -.",
" `:` `:`",
" .-- `--.",
" .---.....----."
};
none = {""};
-- Module exports
drawer.menu_name_handlers = {
-- Menu name handlers should take the menu being drawn and entry being
-- drawn as parameters, and return the name of the item.
-- This is designed so that everything, including menu separators, may
-- have their names derived differently. The default action for entry
-- types not specified here is to call and use entry.name().
[core.MENU_CAROUSEL_ENTRY] = function(drawing_menu, entry)
local carid = entry.carousel_id;
local caridx = config.getCarouselIndex(carid);
local choices = entry.items();
if (#choices < caridx) then
caridx = 1;
end
return entry.name(caridx, choices[caridx], choices);
end,
};
drawer.brand_position = {x = 2, y = 1};
drawer.logo_position = {x = 46, y = 1};
drawer.menu_position = {x = 6, y = 11};
drawer.box_pos_dim = {x = 3, y = 10, w = 41, h = 11};
drawer.branddefs = {
-- Indexed by valid values for loader_brand in loader.conf(5). Valid
-- keys are: graphic (table depicting graphic)
["fbsd"] = {
graphic = fbsd_logo,
},
["none"] = {
graphic = none,
},
};
drawer.logodefs = {
-- Indexed by valid values for loader_logo in loader.conf(5). Valid keys
-- are: requires_color (boolean), graphic (table depicting graphic), and
-- shift (table containing x and y).
["beastie"] = {
requires_color = true,
graphic = beastie_color,
},
["beastiebw"] = {
graphic = beastie,
},
["fbsdbw"] = {
graphic = fbsd_logo_v,
shift = {x = 5, y = 4},
},
["orb"] = {
requires_color = true,
graphic = orb_color,
shift = {x = 2, y = 4},
},
["orbbw"] = {
graphic = orb,
shift = {x = 2, y = 4},
},
["tribute"] = {
graphic = fbsd_logo,
},
["tributebw"] = {
graphic = fbsd_logo,
},
["none"] = {
graphic = none,
shift = {x = 17, y = 0},
},
};
function drawer.drawscreen(menu_opts)
-- drawlogo() must go first.
-- it determines the positions of other elements
drawer.drawlogo();
drawer.drawbrand();
drawer.drawbox();
return drawer.drawmenu(menu_opts);
end
function drawer.drawmenu(m)
x = drawer.menu_position.x;
y = drawer.menu_position.y;
-- print the menu and build the alias table
local alias_table = {};
local entry_num = 0;
local menu_entries = m.entries;
if (type(menu_entries) == "function") then
menu_entries = menu_entries();
end
for line_num, e in ipairs(menu_entries) do
-- Allow menu items to be conditionally visible by specifying
-- a visible function.
if (e.visible ~= nil) and (not e.visible()) then
goto continue;
end
if (e.entry_type ~= core.MENU_SEPARATOR) then
entry_num = entry_num + 1;
screen.setcursor(x, y + line_num);
print(entry_num .. ". " .. menu_entry_name(m, e));
-- fill the alias table
alias_table[tostring(entry_num)] = e;
if (e.alias ~= nil) then
for n, a in ipairs(e.alias) do
alias_table[a] = e;
end
end
else
screen.setcursor(x, y + line_num);
print(menu_entry_name(m, e));
end
::continue::
end
return alias_table;
end
function drawer.drawbox()
x = drawer.box_pos_dim.x;
y = drawer.box_pos_dim.y;
w = drawer.box_pos_dim.w;
h = drawer.box_pos_dim.h;
local hl = string.char(0xCD);
local vl = string.char(0xBA);
local tl = string.char(0xC9);
local bl = string.char(0xC8);
local tr = string.char(0xBB);
local br = string.char(0xBC);
screen.setcursor(x, y); print(tl);
screen.setcursor(x, y+h); print(bl);
screen.setcursor(x+w, y); print(tr);
screen.setcursor(x+w, y+h); print(br);
for i = 1, w-1 do
screen.setcursor(x+i, y);
print(hl);
screen.setcursor(x+i, y+h);
print(hl);
end
for i = 1, h-1 do
screen.setcursor(x, y+i);
print(vl);
screen.setcursor(x+w, y+i);
print(vl);
end
screen.setcursor(x+(w/2)-9, y);
print("Welcome to FreeBSD");
end
function drawer.draw(x, y, logo)
for i = 1, #logo do
screen.setcursor(x, y + i);
print(logo[i]);
end
end
function drawer.drawbrand()
local x = tonumber(loader.getenv("loader_brand_x")) or
drawer.brand_position.x;
local y = tonumber(loader.getenv("loader_brand_y")) or
drawer.brand_position.y;
local graphic = drawer.branddefs[loader.getenv("loader_brand")];
if (graphic == nil) then
graphic = fbsd_logo;
end
drawer.draw(x, y, graphic);
end
function drawer.drawlogo()
local x = tonumber(loader.getenv("loader_logo_x")) or
drawer.logo_position.x;
local y = tonumber(loader.getenv("loader_logo_y")) or
drawer.logo_position.y;
local logo = loader.getenv("loader_logo");
local colored = color.isEnabled();
-- Lookup
local logodef = drawer.logodefs[logo];
if (logodef ~= nil) and (logodef.graphic == none) then
-- centre brand and text if no logo
if (not none_shifted) then
shift_brand_text(logodef.shift);
none_shifted = true;
end
elseif (logodef == nil) or (logodef.graphic == nil) or
((not colored) and logodef.requires_color) then
-- Choose a sensible default
if (colored) then
logodef = drawer.logodefs["orb"];
else
logodef = drawer.logodefs["orbbw"];
end
end
if (logodef.shift ~= nil) then
x = x + logodef.shift.x;
y = y + logodef.shift.y;
end
drawer.draw(x, y, logodef.graphic);
end
return drawer;
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