xref: /freebsd-12.1/stand/lua/drawer.lua (revision fe3f4a58)
1--
2-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3--
4-- Copyright (c) 2015 Pedro Souza <[email protected]>
5-- Copyright (c) 2018 Kyle Evans <[email protected]>
6-- All rights reserved.
7--
8-- Redistribution and use in source and binary forms, with or without
9-- modification, are permitted provided that the following conditions
10-- are met:
11-- 1. Redistributions of source code must retain the above copyright
12--    notice, this list of conditions and the following disclaimer.
13-- 2. Redistributions in binary form must reproduce the above copyright
14--    notice, this list of conditions and the following disclaimer in the
15--    documentation and/or other materials provided with the distribution.
16--
17-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20-- ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27-- SUCH DAMAGE.
28--
29-- $FreeBSD$
30--
31
32local color = require("color")
33local config = require("config")
34local core = require("core")
35local screen = require("screen")
36
37local drawer = {}
38
39local fbsd_logo
40local beastie_color
41local beastie
42local fbsd_logo_v
43local orb_color
44local orb
45local none
46local none_shifted = false
47
48local function menuEntryName(drawing_menu, entry)
49	local name_handler = drawer.menu_name_handlers[entry.entry_type]
50
51	if name_handler ~= nil then
52		return name_handler(drawing_menu, entry)
53	end
54	if type(entry.name) == "function" then
55		return entry.name()
56	end
57	return entry.name
58end
59
60local function shiftBrandText(shift)
61	drawer.brand_position.x = drawer.brand_position.x + shift.x
62	drawer.brand_position.y = drawer.brand_position.y + shift.y
63	drawer.menu_position.x = drawer.menu_position.x + shift.x
64	drawer.menu_position.y = drawer.menu_position.y + shift.y
65	drawer.box_pos_dim.x = drawer.box_pos_dim.x + shift.x
66	drawer.box_pos_dim.y = drawer.box_pos_dim.y + shift.y
67end
68
69fbsd_logo = {
70"  ______               ____   _____ _____  ",
71" |  ____|             |  _ \\ / ____|  __ \\ ",
72" | |___ _ __ ___  ___ | |_) | (___ | |  | |",
73" |  ___| '__/ _ \\/ _ \\|  _ < \\___ \\| |  | |",
74" | |   | | |  __/  __/| |_) |____) | |__| |",
75" | |   | | |    |    ||     |      |      |",
76" |_|   |_|  \\___|\\___||____/|_____/|_____/ "
77}
78
79beastie_color = {
80"               \027[31m,        ,",
81"              /(        )`",
82"              \\ \\___   / |",
83"              /- \027[37m_\027[31m  `-/  '",
84"             (\027[37m/\\/ \\\027[31m \\   /\\",
85"             \027[37m/ /   |\027[31m `    \\",
86"             \027[34mO O   \027[37m) \027[31m/    |",
87"             \027[37m`-^--'\027[31m`<     '",
88"            (_.)  _  )   /",
89"             `.___/`    /",
90"               `-----' /",
91"  \027[33m<----.\027[31m     __ / __   \\",
92"  \027[33m<----|====\027[31mO)))\027[33m==\027[31m) \\) /\027[33m====|",
93"  \027[33m<----'\027[31m    `--' `.__,' \\",
94"               |        |",
95"                \\       /       /\\",
96"           \027[36m______\027[31m( (_  / \\______/",
97"         \027[36m,'  ,-----'   |",
98"         `--{__________)\027[37m"
99}
100
101beastie = {
102"               ,        ,",
103"              /(        )`",
104"              \\ \\___   / |",
105"              /- _  `-/  '",
106"             (/\\/ \\ \\   /\\",
107"             / /   | `    \\",
108"             O O   ) /    |",
109"             `-^--'`<     '",
110"            (_.)  _  )   /",
111"             `.___/`    /",
112"               `-----' /",
113"  <----.     __ / __   \\",
114"  <----|====O)))==) \\) /====|",
115"  <----'    `--' `.__,' \\",
116"               |        |",
117"                \\       /       /\\",
118"           ______( (_  / \\______/",
119"         ,'  ,-----'   |",
120"         `--{__________)"
121}
122
123fbsd_logo_v = {
124"  ______",
125" |  ____| __ ___  ___ ",
126" | |__ | '__/ _ \\/ _ \\",
127" |  __|| | |  __/  __/",
128" | |   | | |    |    |",
129" |_|   |_|  \\___|\\___|",
130"  ____   _____ _____",
131" |  _ \\ / ____|  __ \\",
132" | |_) | (___ | |  | |",
133" |  _ < \\___ \\| |  | |",
134" | |_) |____) | |__| |",
135" |     |      |      |",
136" |____/|_____/|_____/"
137}
138
139orb_color = {
140"  \027[31m```                        \027[31;1m`\027[31m",
141" s` `.....---...\027[31;1m....--.```   -/\027[31m",
142" +o   .--`         \027[31;1m/y:`      +.\027[31m",
143"  yo`:.            \027[31;1m:o      `+-\027[31m",
144"   y/               \027[31;1m-/`   -o/\027[31m",
145"  .-                  \027[31;1m::/sy+:.\027[31m",
146"  /                     \027[31;1m`--  /\027[31m",
147" `:                          \027[31;1m:`\027[31m",
148" `:                          \027[31;1m:`\027[31m",
149"  /                          \027[31;1m/\027[31m",
150"  .-                        \027[31;1m-.\027[31m",
151"   --                      \027[31;1m-.\027[31m",
152"    `:`                  \027[31;1m`:`",
153"      \027[31;1m.--             `--.",
154"         .---.....----.\027[37m"
155}
156
157orb = {
158"  ```                        `",
159" s` `.....---.......--.```   -/",
160" +o   .--`         /y:`      +.",
161"  yo`:.            :o      `+-",
162"   y/               -/`   -o/",
163"  .-                  ::/sy+:.",
164"  /                     `--  /",
165" `:                          :`",
166" `:                          :`",
167"  /                          /",
168"  .-                        -.",
169"   --                      -.",
170"    `:`                  `:`",
171"      .--             `--.",
172"         .---.....----."
173}
174
175none = {""}
176
177-- Module exports
178drawer.menu_name_handlers = {
179	-- Menu name handlers should take the menu being drawn and entry being
180	-- drawn as parameters, and return the name of the item.
181	-- This is designed so that everything, including menu separators, may
182	-- have their names derived differently. The default action for entry
183	-- types not specified here is to use entry.name directly.
184	[core.MENU_SEPARATOR] = function(_, entry)
185		if entry.name ~= nil then
186			if type(entry.name) == "function" then
187				return entry.name()
188			end
189			return entry.name
190		end
191		return ""
192	end,
193	[core.MENU_CAROUSEL_ENTRY] = function(_, entry)
194		local carid = entry.carousel_id
195		local caridx = config.getCarouselIndex(carid)
196		local choices = entry.items
197		if type(choices) == "function" then
198			choices = choices()
199		end
200		if #choices < caridx then
201			caridx = 1
202		end
203		return entry.name(caridx, choices[caridx], choices)
204	end,
205}
206
207drawer.brand_position = {x = 2, y = 1}
208drawer.logo_position = {x = 46, y = 1}
209drawer.menu_position = {x = 6, y = 11}
210drawer.box_pos_dim = {x = 3, y = 10, w = 41, h = 11}
211
212drawer.branddefs = {
213	-- Indexed by valid values for loader_brand in loader.conf(5). Valid
214	-- keys are: graphic (table depicting graphic)
215	["fbsd"] = {
216		graphic = fbsd_logo,
217	},
218	["none"] = {
219		graphic = none,
220	},
221}
222
223drawer.logodefs = {
224	-- Indexed by valid values for loader_logo in loader.conf(5). Valid keys
225	-- are: requires_color (boolean), graphic (table depicting graphic), and
226	-- shift (table containing x and y).
227	["beastie"] = {
228		requires_color = true,
229		graphic = beastie_color,
230	},
231	["beastiebw"] = {
232		graphic = beastie,
233	},
234	["fbsdbw"] = {
235		graphic = fbsd_logo_v,
236		shift = {x = 5, y = 4},
237	},
238	["orb"] = {
239		requires_color = true,
240		graphic = orb_color,
241		shift = {x = 2, y = 4},
242	},
243	["orbbw"] = {
244		graphic = orb,
245		shift = {x = 2, y = 4},
246	},
247	["tribute"] = {
248		graphic = fbsd_logo,
249	},
250	["tributebw"] = {
251		graphic = fbsd_logo,
252	},
253	["none"] = {
254		graphic = none,
255		shift = {x = 17, y = 0},
256	},
257}
258
259function drawer.drawscreen(menu_opts)
260	-- drawlogo() must go first.
261	-- it determines the positions of other elements
262	drawer.drawlogo()
263	drawer.drawbrand()
264	drawer.drawbox()
265	return drawer.drawmenu(menu_opts)
266end
267
268function drawer.drawmenu(menudef)
269	local x = drawer.menu_position.x
270	local y = drawer.menu_position.y
271
272	-- print the menu and build the alias table
273	local alias_table = {}
274	local entry_num = 0
275	local menu_entries = menudef.entries
276	local effective_line_num = 0
277	if type(menu_entries) == "function" then
278		menu_entries = menu_entries()
279	end
280	for _, e in ipairs(menu_entries) do
281		-- Allow menu items to be conditionally visible by specifying
282		-- a visible function.
283		if e.visible ~= nil and not e.visible() then
284			goto continue
285		end
286		effective_line_num = effective_line_num + 1
287		if e.entry_type ~= core.MENU_SEPARATOR then
288			entry_num = entry_num + 1
289			screen.setcursor(x, y + effective_line_num)
290
291			print(entry_num .. ". " .. menuEntryName(menudef, e))
292
293			-- fill the alias table
294			alias_table[tostring(entry_num)] = e
295			if e.alias ~= nil then
296				for _, a in ipairs(e.alias) do
297					alias_table[a] = e
298				end
299			end
300		else
301			screen.setcursor(x, y + effective_line_num)
302			print(menuEntryName(menudef, e))
303		end
304		::continue::
305	end
306	return alias_table
307end
308
309
310function drawer.drawbox()
311	local x = drawer.box_pos_dim.x
312	local y = drawer.box_pos_dim.y
313	local w = drawer.box_pos_dim.w
314	local h = drawer.box_pos_dim.h
315
316	local hl = string.char(0xCD)
317	local vl = string.char(0xBA)
318
319	local tl = string.char(0xC9)
320	local bl = string.char(0xC8)
321	local tr = string.char(0xBB)
322	local br = string.char(0xBC)
323
324	screen.setcursor(x, y); print(tl)
325	screen.setcursor(x, y+h); print(bl)
326	screen.setcursor(x+w, y); print(tr)
327	screen.setcursor(x+w, y+h); print(br)
328
329	for i = 1, w-1 do
330		screen.setcursor(x+i, y)
331		print(hl)
332		screen.setcursor(x+i, y+h)
333		print(hl)
334	end
335
336	for i = 1, h-1 do
337		screen.setcursor(x, y+i)
338		print(vl)
339		screen.setcursor(x+w, y+i)
340		print(vl)
341	end
342
343	screen.setcursor(x+(w/2)-9, y)
344	print("Welcome to FreeBSD")
345end
346
347function drawer.draw(x, y, logo)
348	for i = 1, #logo do
349		screen.setcursor(x, y + i)
350		print(logo[i])
351	end
352end
353
354function drawer.drawbrand()
355	local x = tonumber(loader.getenv("loader_brand_x")) or
356	    drawer.brand_position.x
357	local y = tonumber(loader.getenv("loader_brand_y")) or
358	    drawer.brand_position.y
359
360	local graphic = drawer.branddefs[loader.getenv("loader_brand")]
361	if graphic == nil then
362		graphic = fbsd_logo
363	end
364	drawer.draw(x, y, graphic)
365end
366
367function drawer.drawlogo()
368	local x = tonumber(loader.getenv("loader_logo_x")) or
369	    drawer.logo_position.x
370	local y = tonumber(loader.getenv("loader_logo_y")) or
371	    drawer.logo_position.y
372
373	local logo = loader.getenv("loader_logo")
374	local colored = color.isEnabled()
375
376	-- Lookup
377	local logodef = drawer.logodefs[logo]
378
379	if logodef ~= nil and logodef.graphic == none then
380		-- centre brand and text if no logo
381		if not none_shifted then
382			shiftBrandText(logodef.shift)
383			none_shifted = true
384		end
385	elseif logodef == nil or logodef.graphic == nil or
386	    (not colored and logodef.requires_color) then
387		-- Choose a sensible default
388		if colored then
389			logodef = drawer.logodefs["orb"]
390		else
391			logodef = drawer.logodefs["orbbw"]
392		end
393	end
394	if logodef.shift ~= nil then
395		x = x + logodef.shift.x
396		y = y + logodef.shift.y
397	end
398	drawer.draw(x, y, logodef.graphic)
399end
400
401return drawer
402