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freebsd-skq/stand/lua/drawer.lua
Kyle Evans ada26c4a88 stand/lua: Create a "carousel" menu entry type 
This is a pre-cursor to boot environment support in lualoader. Create a new
menu item type, "carousel_entry", that generally provides a callback to get
the list of items, a carousel_id for storing the current value, and the
standard name/func functions that an entry has.

The difference between this and a normal menu item, functionally, is that
selecting a carousel item will automatically rotate through available items
and wrap back at the beginning when the list is exhausted.

The 'name' function takes the choice index, current choice, and the list of
choices as parameters so that the menu item can decorate the name freely as
desired.

The 'func' function takes the current choice as a parameter, so it can act
accordingly.

The kernel menu item has been rewritten to use the carousel_entry type as
both an example and initial test of its functionality before it is used for
boot environment options.
2018-02-16 14:39:41 +00:00

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--
-- Copyright (c) 2015 Pedro Souza <pedrosouza@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 drawer = {};
local color = require("color");
local screen = require("screen");
drawer.brand_position = {x = 2, y = 1};
drawer.fbsd_logo = {
" ______ ____ _____ _____ ",
" | ____| | _ \\ / ____| __ \\ ",
" | |___ _ __ ___ ___ | |_) | (___ | | | |",
" | ___| '__/ _ \\/ _ \\| _ < \\___ \\| | | |",
" | | | | | __/ __/| |_) |____) | |__| |",
" | | | | | | || | | |",
" |_| |_| \\___|\\___||____/|_____/|_____/ "
};
drawer.logo_position = {x = 46, y = 1};
drawer.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"
};
drawer.beastie = {
" , ,",
" /( )`",
" \\ \\___ / |",
" /- _ `-/ '",
" (/\\/ \\ \\ /\\",
" / / | ` \\",
" O O ) / |",
" `-^--'`< '",
" (_.) _ ) /",
" `.___/` /",
" `-----' /",
" <----. __ / __ \\",
" <----|====O)))==) \\) /====|",
" <----' `--' `.__,' \\",
" | |",
" \\ / /\\",
" ______( (_ / \\______/",
" ,' ,-----' |",
" `--{__________)"
};
drawer.fbsd_logo_shift = {x = 5, y = 4};
drawer.fbsd_logo_v = {
" ______",
" | ____| __ ___ ___ ",
" | |__ | '__/ _ \\/ _ \\",
" | __|| | | __/ __/",
" | | | | | | |",
" |_| |_| \\___|\\___|",
" ____ _____ _____",
" | _ \\ / ____| __ \\",
" | |_) | (___ | | | |",
" | _ < \\___ \\| | | |",
" | |_) |____) | |__| |",
" | | | |",
" |____/|_____/|_____/"
};
drawer.orb_shift = {x = 2, y = 4};
drawer.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"
};
drawer.orb = {
" ``` `",
" s` `.....---.......--.``` -/",
" +o .--` /y:` +.",
" yo`:. :o `+-",
" y/ -/` -o/",
" .- ::/sy+:.",
" / `-- /",
" `: :`",
" `: :`",
" / /",
" .- -.",
" -- -.",
" `:` `:`",
" .-- `--.",
" .---.....----."
};
drawer.none = {""};
drawer.none_shift = {x = 17, y = 0};
drawer.menu_position = {x = 6, y = 11};
drawer.box_pos_dim = {x = 3, y = 10, w = 41, h = 11};
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;
for line_num, e in ipairs(m) do
if (e.entry_type ~= "separator") then
entry_num = entry_num + 1;
screen.setcursor(x, y + line_num);
local name = "";
if (e.entry_type == "carousel_entry") then
local carid = e.carousel_id;
local caridx = menu.getCarouselIndex(carid);
local choices = e.items();
if (#choices < caridx) then
caridx = 1;
end;
name = e.name(caridx, choices[caridx], choices);
else
name = e.name();
end
print(entry_num .. ". "..name);
-- 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(e.name());
end
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"));
local y = tonumber(loader.getenv("loader_brand_y"));
if not x then
x = drawer.brand_position.x;
end
if not y then
y = drawer.brand_position.y;
end
local logo = load("return " .. tostring(loader.getenv("loader_brand")))();
if not logo then
logo = drawer.fbsd_logo;
end
drawer.draw(x, y, logo);
end
function drawer.drawlogo()
local x = tonumber(loader.getenv("loader_logo_x"));
local y = tonumber(loader.getenv("loader_logo_y"));
if not x then
x = drawer.logo_position.x;
end
if not y then
y = drawer.logo_position.y;
end
local logo = loader.getenv("loader_logo");
local s = {x = 0, y = 0};
local colored = color.isEnabled();
if logo == "beastie" then
if colored then
logo = drawer.beastie_color;
end
elseif logo == "beastiebw" then
logo = drawer.beastie;
elseif logo == "fbsdbw" then
logo = drawer.fbsd_logo_v;
s = drawer.fbsd_logo_shift;
elseif logo == "orb" then
if colored then
logo = drawer.orb_color;
end
s = drawer.orb_shift;
elseif logo == "orbbw" then
logo = drawer.orb;
s = drawer.orb_shift;
elseif logo == "tribute" then
logo = drawer.fbsd_logo;
elseif logo == "tributebw" then
logo = drawer.fbsd_logo;
elseif logo == "none" then
--centre brand and text if no logo
drawer.brand_position.x = drawer.brand_position.x + drawer.none_shift.x;
drawer.brand_position.y = drawer.brand_position.y + drawer.none_shift.y;
drawer.menu_position.x = drawer.menu_position.x + drawer.none_shift.x;
drawer.menu_position.y = drawer.menu_position.y + drawer.none_shift.y;
drawer.box_pos_dim.x = drawer.box_pos_dim.x + drawer.none_shift.x;
drawer.box_pos_dim.y = drawer.box_pos_dim.y + drawer.none_shift.y;
--prevent redraws from moving menu further
drawer.none_shift.x = 0;
drawer.none_shift.y = 0;
logo = drawer.none;
end
if not logo then
if colored then
logo = drawer.orb_color;
else
logo = drawer.orb;
end
end
drawer.draw(x + s.x, y + s.y, logo);
end
return drawer
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