1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
--[[
font_api mod for Minetest - Library to add font display capability
to display_api mod.
(c) Pierre-Yves Rollo
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
--]]
local modname = minetest.get_current_modname()
-- Context management functions (surely many improvements to do)
local contexts = {}
local function get_player_name(player)
if type(player) == 'string' then return player end
if type(player) == 'userdata' and player.get_player_name then
return player:get_player_name()
end
minetest.log('warning', '['..modname..'] get_player_name could not identify player.')
end
minetest.register_on_leaveplayer(function(player)
local playername = get_player_name(player)
if playername then contexts[playername] = nil end
end)
local function new_context(player, context)
local playername = get_player_name(player)
if playername then
contexts[playername] = context
contexts[playername].playername = playername
return contexts[playername]
end
end
local function get_context(player)
local playername = get_player_name(player)
if playername then
if contexts[playername] then
return contexts[playername]
else
minetest.log('warning', '['..modname..'] Context not found for player "'..playername..'"')
end
end
end
local function update_context(player, changes)
local playername = get_player_name(player)
if playername then
if not contexts[playername] then
contexts[playername] = { playername = playername }
end
for key, value in pairs(changes) do
contexts[playername][key] = value
end
end
end
-- Show node formspec functions
local function show_node_formspec(player, pos)
local meta = minetest.get_meta(pos)
local playername = get_player_name(player)
-- Decontextualize formspec
local fs = meta:get_string('formspec')
-- Change context and currrent_name references to nodemeta references
fs = fs:gsub("current_name", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
fs = fs:gsub("context", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
-- Change all ${} to their corresponding metadata values
local s, e
repeat
s, e = fs:find('%${.*}')
if s and e then
fs = fs:sub(1, s-1)..
minetest.formspec_escape(meta:get_string(fs:sub(s+2,e-1)))..
fs:sub(e+1)
end
until s == nil
-- Find node on_receive_fields
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
if ndef and ndef.on_receive_fields then
update_context(player, { on_receive_fields = ndef.on_receive_fields } )
end
update_context(player, { node_pos = pos } )
-- Show formspec
minetest.show_formspec(playername, modname..':context_formspec', fs)
end
minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname == modname..':context_formspec' then
local context = get_context(player)
if context == nil then return end
if context.on_receive_fields then
context.on_receive_fields(context.pos, '', fields, player)
end
end
end)
-- Specific functions
local function font_list_prepare()
local list = {}
for name, _ in pairs(font_api.registered_fonts) do
list[#list+1] = name
end
table.sort(list)
return list
end
local function show_fs(player)
local context = get_context(player)
if context == nil then return end
local fonts = font_list_prepare()
local fs = 'size[4,'..(#fonts + 0.8)..']'
..default.gui_bg..default.gui_bg_img..default.gui_slots
..'button_exit[0,'..(#fonts)..';4,1;cancel;Cancel]'
for line = 1, #fonts do
local font = font_api.get_font(fonts[line])
fs = fs..'image[0.1,'..(line-0.9)..';4.5,0.8;'
..font:make_text_texture(font.name, font:get_height()*5,
font:get_height()*1.2, 1, "center", "top", "#fff")
..']button_exit[0,'..(line-1)..';4,1;font_'..font.name..';]'
end
minetest.show_formspec(context.playername, modname..':font_list', fs)
end
minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname == modname..':font_list' then
local context = get_context(player)
if context == nil then return end
if fields.quit == 'true' then
for name, _ in pairs(font_api.registered_fonts) do
if fields['font_'..name] then
local meta = minetest.get_meta(context.pos)
meta:set_string("font", name)
display_api.update_entities(context.pos)
end
end
-- Using after to avoid the "double close" bug
minetest.after(0, show_node_formspec, player, context.pos)
end
end
end)
function font_api.show_font_list(player, pos)
new_context(player, { pos = pos })
show_fs(player)
end
|
