9ed6f9efda
The latter is good, but the former is more elegant and clear about what 'x' is. Adopt it, preferably only using the latter kind of notation where needed as values for tables.
400 lines
11 KiB
Lua
400 lines
11 KiB
Lua
--
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-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- Copyright (c) 2018 Kyle Evans <kevans@FreeBSD.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local color = require("color")
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local config = require("config")
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local core = require("core")
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local screen = require("screen")
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local drawer = {}
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local fbsd_logo
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local beastie_color
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local beastie
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local fbsd_logo_v
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local orb_color
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local orb
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local none
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local none_shifted = false
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local function menu_entry_name(drawing_menu, entry)
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local name_handler = drawer.menu_name_handlers[entry.entry_type]
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if name_handler ~= nil then
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return name_handler(drawing_menu, entry)
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end
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if type(entry.name) == "function" then
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return entry.name()
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end
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return entry.name
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end
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local function shift_brand_text(shift)
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drawer.brand_position.x = drawer.brand_position.x + shift.x
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drawer.brand_position.y = drawer.brand_position.y + shift.y
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drawer.menu_position.x = drawer.menu_position.x + shift.x
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drawer.menu_position.y = drawer.menu_position.y + shift.y
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drawer.box_pos_dim.x = drawer.box_pos_dim.x + shift.x
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drawer.box_pos_dim.y = drawer.box_pos_dim.y + shift.y
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end
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fbsd_logo = {
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" ______ ____ _____ _____ ",
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" | ____| | _ \\ / ____| __ \\ ",
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" | |___ _ __ ___ ___ | |_) | (___ | | | |",
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" | ___| '__/ _ \\/ _ \\| _ < \\___ \\| | | |",
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" | | | | | __/ __/| |_) |____) | |__| |",
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" | | | | | | || | | |",
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" |_| |_| \\___|\\___||____/|_____/|_____/ "
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}
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beastie_color = {
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" \027[31m, ,",
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" /( )`",
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" \\ \\___ / |",
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" /- \027[37m_\027[31m `-/ '",
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" (\027[37m/\\/ \\\027[31m \\ /\\",
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" \027[37m/ / |\027[31m ` \\",
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" \027[34mO O \027[37m) \027[31m/ |",
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" \027[37m`-^--'\027[31m`< '",
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" (_.) _ ) /",
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" `.___/` /",
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" `-----' /",
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" \027[33m<----.\027[31m __ / __ \\",
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" \027[33m<----|====\027[31mO)))\027[33m==\027[31m) \\) /\027[33m====|",
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" \027[33m<----'\027[31m `--' `.__,' \\",
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" | |",
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" \\ / /\\",
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" \027[36m______\027[31m( (_ / \\______/",
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" \027[36m,' ,-----' |",
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" `--{__________)\027[37m"
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}
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beastie = {
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" , ,",
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" /( )`",
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" \\ \\___ / |",
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" /- _ `-/ '",
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" (/\\/ \\ \\ /\\",
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" / / | ` \\",
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" O O ) / |",
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" `-^--'`< '",
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" (_.) _ ) /",
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" `.___/` /",
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" `-----' /",
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" <----. __ / __ \\",
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" <----|====O)))==) \\) /====|",
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" <----' `--' `.__,' \\",
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" | |",
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" \\ / /\\",
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" ______( (_ / \\______/",
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" ,' ,-----' |",
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" `--{__________)"
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}
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fbsd_logo_v = {
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" ______",
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" | ____| __ ___ ___ ",
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" | |__ | '__/ _ \\/ _ \\",
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" | __|| | | __/ __/",
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" | | | | | | |",
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" |_| |_| \\___|\\___|",
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" ____ _____ _____",
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" | _ \\ / ____| __ \\",
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" | |_) | (___ | | | |",
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" | _ < \\___ \\| | | |",
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" | |_) |____) | |__| |",
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" | | | |",
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" |____/|_____/|_____/"
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}
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orb_color = {
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" \027[31m``` \027[31;1m`\027[31m",
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" s` `.....---...\027[31;1m....--.``` -/\027[31m",
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" +o .--` \027[31;1m/y:` +.\027[31m",
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" yo`:. \027[31;1m:o `+-\027[31m",
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" y/ \027[31;1m-/` -o/\027[31m",
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" .- \027[31;1m::/sy+:.\027[31m",
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" / \027[31;1m`-- /\027[31m",
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" `: \027[31;1m:`\027[31m",
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" `: \027[31;1m:`\027[31m",
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" / \027[31;1m/\027[31m",
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" .- \027[31;1m-.\027[31m",
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" -- \027[31;1m-.\027[31m",
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" `:` \027[31;1m`:`",
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" \027[31;1m.-- `--.",
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" .---.....----.\027[37m"
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}
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orb = {
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" ``` `",
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" s` `.....---.......--.``` -/",
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" +o .--` /y:` +.",
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" yo`:. :o `+-",
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" y/ -/` -o/",
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" .- ::/sy+:.",
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" / `-- /",
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" `: :`",
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" `: :`",
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" / /",
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" .- -.",
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" -- -.",
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" `:` `:`",
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" .-- `--.",
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" .---.....----."
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}
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none = {""}
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-- Module exports
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drawer.menu_name_handlers = {
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-- Menu name handlers should take the menu being drawn and entry being
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-- drawn as parameters, and return the name of the item.
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-- This is designed so that everything, including menu separators, may
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-- have their names derived differently. The default action for entry
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-- types not specified here is to use entry.name directly.
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[core.MENU_SEPARATOR] = function(_, entry)
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if entry.name ~= nil then
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if type(entry.name) == "function" then
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return entry.name()
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end
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return entry.name
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end
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return ""
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end,
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[core.MENU_CAROUSEL_ENTRY] = function(_, entry)
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local carid = entry.carousel_id
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local caridx = config.getCarouselIndex(carid)
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local choices = entry.items
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if type(choices) == "function" then
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choices = choices()
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end
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if #choices < caridx then
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caridx = 1
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end
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return entry.name(caridx, choices[caridx], choices)
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end,
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}
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drawer.brand_position = {x = 2, y = 1}
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drawer.logo_position = {x = 46, y = 1}
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drawer.menu_position = {x = 6, y = 11}
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drawer.box_pos_dim = {x = 3, y = 10, w = 41, h = 11}
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drawer.branddefs = {
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-- Indexed by valid values for loader_brand in loader.conf(5). Valid
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-- keys are: graphic (table depicting graphic)
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["fbsd"] = {
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graphic = fbsd_logo,
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},
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["none"] = {
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graphic = none,
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},
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}
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drawer.logodefs = {
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-- Indexed by valid values for loader_logo in loader.conf(5). Valid keys
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-- are: requires_color (boolean), graphic (table depicting graphic), and
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-- shift (table containing x and y).
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["beastie"] = {
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requires_color = true,
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graphic = beastie_color,
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},
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["beastiebw"] = {
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graphic = beastie,
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},
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["fbsdbw"] = {
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graphic = fbsd_logo_v,
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shift = {x = 5, y = 4},
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},
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["orb"] = {
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requires_color = true,
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graphic = orb_color,
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shift = {x = 2, y = 4},
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},
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["orbbw"] = {
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graphic = orb,
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shift = {x = 2, y = 4},
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},
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["tribute"] = {
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graphic = fbsd_logo,
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},
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["tributebw"] = {
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graphic = fbsd_logo,
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},
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["none"] = {
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graphic = none,
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shift = {x = 17, y = 0},
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},
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}
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function drawer.drawscreen(menu_opts)
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-- drawlogo() must go first.
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-- it determines the positions of other elements
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drawer.drawlogo()
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drawer.drawbrand()
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drawer.drawbox()
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return drawer.drawmenu(menu_opts)
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end
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function drawer.drawmenu(m)
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local x = drawer.menu_position.x
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local y = drawer.menu_position.y
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-- print the menu and build the alias table
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local alias_table = {}
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local entry_num = 0
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local menu_entries = m.entries
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if type(menu_entries) == "function" then
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menu_entries = menu_entries()
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end
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for line_num, e in ipairs(menu_entries) do
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-- Allow menu items to be conditionally visible by specifying
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-- a visible function.
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if e.visible ~= nil and not e.visible() then
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goto continue
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end
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if e.entry_type ~= core.MENU_SEPARATOR then
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entry_num = entry_num + 1
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screen.setcursor(x, y + line_num)
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print(entry_num .. ". " .. menu_entry_name(m, e))
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-- fill the alias table
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alias_table[tostring(entry_num)] = e
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if e.alias ~= nil then
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for _, a in ipairs(e.alias) do
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alias_table[a] = e
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end
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end
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else
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screen.setcursor(x, y + line_num)
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print(menu_entry_name(m, e))
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end
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::continue::
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end
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return alias_table
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end
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function drawer.drawbox()
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local x = drawer.box_pos_dim.x
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local y = drawer.box_pos_dim.y
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local w = drawer.box_pos_dim.w
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local h = drawer.box_pos_dim.h
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local hl = string.char(0xCD)
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local vl = string.char(0xBA)
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local tl = string.char(0xC9)
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local bl = string.char(0xC8)
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local tr = string.char(0xBB)
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local br = string.char(0xBC)
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screen.setcursor(x, y); print(tl)
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screen.setcursor(x, y+h); print(bl)
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screen.setcursor(x+w, y); print(tr)
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screen.setcursor(x+w, y+h); print(br)
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for i = 1, w-1 do
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screen.setcursor(x+i, y)
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print(hl)
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screen.setcursor(x+i, y+h)
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print(hl)
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end
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for i = 1, h-1 do
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screen.setcursor(x, y+i)
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print(vl)
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screen.setcursor(x+w, y+i)
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print(vl)
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end
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screen.setcursor(x+(w/2)-9, y)
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print("Welcome to FreeBSD")
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end
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function drawer.draw(x, y, logo)
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for i = 1, #logo do
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screen.setcursor(x, y + i)
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print(logo[i])
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end
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end
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function drawer.drawbrand()
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local x = tonumber(loader.getenv("loader_brand_x")) or
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drawer.brand_position.x
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local y = tonumber(loader.getenv("loader_brand_y")) or
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drawer.brand_position.y
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local graphic = drawer.branddefs[loader.getenv("loader_brand")]
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if graphic == nil then
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graphic = fbsd_logo
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end
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drawer.draw(x, y, graphic)
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end
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function drawer.drawlogo()
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local x = tonumber(loader.getenv("loader_logo_x")) or
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drawer.logo_position.x
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local y = tonumber(loader.getenv("loader_logo_y")) or
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drawer.logo_position.y
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local logo = loader.getenv("loader_logo")
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local colored = color.isEnabled()
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-- Lookup
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local logodef = drawer.logodefs[logo]
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if logodef ~= nil and logodef.graphic == none then
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-- centre brand and text if no logo
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if not none_shifted then
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shift_brand_text(logodef.shift)
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none_shifted = true
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end
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elseif logodef == nil or logodef.graphic == nil or
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(not colored and logodef.requires_color) then
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-- Choose a sensible default
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if colored then
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logodef = drawer.logodefs["orb"]
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else
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logodef = drawer.logodefs["orbbw"]
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end
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end
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if logodef.shift ~= nil then
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x = x + logodef.shift.x
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y = y + logodef.shift.y
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end
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drawer.draw(x, y, logodef.graphic)
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end
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return drawer
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