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freebsd-nq/stand/lua/drawer.lua
Kyle Evans 04af422907 lualoader: More argument name expansion, part 2 
screen also has some instances, but it also has other cleanup to go with it.
Because of this, I will be committing the screen changes separately.
2018-02-26 04:08:54 +00:00

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--
-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
--
-- 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_color
local orb
local none
local none_shifted = false
local function menuEntryName(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
if type(entry.name) == "function" then
return entry.name()
end
return entry.name
end
local function shiftBrandText(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 use entry.name directly.
[core.MENU_SEPARATOR] = function(_, entry)
if entry.name ~= nil then
if type(entry.name) == "function" then
return entry.name()
end
return entry.name
end
return ""
end,
[core.MENU_CAROUSEL_ENTRY] = function(_, entry)
local carid = entry.carousel_id
local caridx = config.getCarouselIndex(carid)
local choices = entry.items
if type(choices) == "function" then
choices = choices()
end
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(menudef)
local x = drawer.menu_position.x
local y = drawer.menu_position.y
-- print the menu and build the alias table
local alias_table = {}
local entry_num = 0
local menu_entries = menudef.entries
local effective_line_num = 0
if type(menu_entries) == "function" then
menu_entries = menu_entries()
end
for _, 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
effective_line_num = effective_line_num + 1
if e.entry_type ~= core.MENU_SEPARATOR then
entry_num = entry_num + 1
screen.setcursor(x, y + effective_line_num)
print(entry_num .. ". " .. menuEntryName(menudef, e))
-- fill the alias table
alias_table[tostring(entry_num)] = e
if e.alias ~= nil then
for _, a in ipairs(e.alias) do
alias_table[a] = e
end
end
else
screen.setcursor(x, y + effective_line_num)
print(menuEntryName(menudef, e))
end
::continue::
end
return alias_table
end
function drawer.drawbox()
local x = drawer.box_pos_dim.x
local y = drawer.box_pos_dim.y
local w = drawer.box_pos_dim.w
local 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
shiftBrandText(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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