builtin/mainmenu/tab_texturepacks.lua

   1 --Minetest
   2 --Copyright (C) 2014 sapier
   3 --
   4 --This program is free software; you can redistribute it and/or modify
   5 --it under the terms of the GNU Lesser General Public License as published by
   6 --the Free Software Foundation; either version 2.1 of the License, or
   7 --(at your option) any later version.
   8 --
   9 --This program is distributed in the hope that it will be useful,
  10 --but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 --MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 --GNU Lesser General Public License for more details.
  13 --
  14 --You should have received a copy of the GNU Lesser General Public License along
  15 --with this program; if not, write to the Free Software Foundation, Inc.,
  16 --51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 --------------------------------------------------------------------------------
  19 local function filter_texture_pack_list(list)
  20         local retval = {fgettext("None")}
  21         for _, item in ipairs(list) do
  22                 if item ~= "base" then
  23                         table.insert(retval, item)
  24                 end
  25         end
  26         return retval
  27 end
  28
  29 --------------------------------------------------------------------------------
  30 local function render_texture_pack_list(list)
  31         local retval = ""
  32
  33         for i, v in ipairs(list) do
  34                 if v:sub(1,1) ~= "." then
  35                         if retval ~= "" then
  36                                 retval = retval ..","
  37                         end
  38
  39                         retval = retval .. core.formspec_escape(v)
  40                 end
  41         end
  42
  43         return retval
  44 end
  45
  46 --------------------------------------------------------------------------------
  47 local function get_formspec(tabview, name, tabdata)
  48
  49         local retval = "label[4,-0.25;".. fgettext("Select texture pack:") .. "]"..
  50                         "textlist[4,0.25;7.5,5.0;TPs;"
  51
  52         local current_texture_path = core.setting_get("texture_path")
  53         local list = filter_texture_pack_list(core.get_dir_list(core.get_texturepath(), true))
  54         local index = tonumber(core.setting_get("mainmenu_last_selected_TP"))
  55
  56         if index == nil then index = 1 end
  57
  58         if current_texture_path == "" then
  59                 retval = retval ..
  60                         render_texture_pack_list(list) ..
  61                         ";" .. index .. "]"
  62                 return retval
  63         end
  64
  65         local infofile = current_texture_path ..DIR_DELIM.."description.txt"
  66         -- This adds backwards compatibility for old texture pack description files named
  67         -- "info.txt", and should be removed once all such texture packs have been updated
  68         if not file_exists(infofile) then
  69                 infofile = current_texture_path ..DIR_DELIM.."info.txt"
  70                 if file_exists(infofile) then
  71                         minetest.log("info.txt is depreciated. description.txt should be used instead.");
  72                 end
  73         end
  74         local infotext = ""
  75         local f = io.open(infofile, "r")
  76         if not f then
  77                 infotext = fgettext("No information available")
  78         else
  79                 infotext = f:read("*all")
  80                 f:close()
  81         end
  82
  83         local screenfile = current_texture_path..DIR_DELIM.."screenshot.png"
  84         local no_screenshot = nil
  85         if not file_exists(screenfile) then
  86                 screenfile = nil
  87                 no_screenshot = defaulttexturedir .. "no_screenshot.png"
  88         end
  89
  90         return  retval ..
  91                         render_texture_pack_list(list) ..
  92                         ";" .. index .. "]" ..
  93                         "image[0.25,0.25;4.0,3.7;"..core.formspec_escape(screenfile or no_screenshot).."]"..
  94                         "textarea[0.6,3.25;3.7,1.5;;"..core.formspec_escape(infotext or "")..";]"
  95 end
  96
  97 --------------------------------------------------------------------------------
  98 local function main_button_handler(tabview, fields, name, tabdata)
  99         if fields["TPs"] ~= nil then
 100                 local event = core.explode_textlist_event(fields["TPs"])
 101                 if event.type == "CHG" or event.type == "DCL" then
 102                         local index = core.get_textlist_index("TPs")
 103                         core.setting_set("mainmenu_last_selected_TP",
 104                                 index)
 105                         local list = filter_texture_pack_list(core.get_dir_list(core.get_texturepath(), true))
 106                         local current_index = core.get_textlist_index("TPs")
 107                         if current_index ~= nil and #list >= current_index then
 108                                 local new_path = core.get_texturepath()..DIR_DELIM..list[current_index]
 109                                 if list[current_index] == fgettext("None") then new_path = "" end
 110
 111                                 core.setting_set("texture_path", new_path)
 112                         end
 113                 end
 114                 return true
 115         end
 116         return false
 117 end
 118
 119 --------------------------------------------------------------------------------
 120 tab_texturepacks = {
 121         name = "texturepacks",
 122         caption = fgettext("Texturepacks"),
 123         cbf_formspec = get_formspec,
 124         cbf_button_handler = main_button_handler,
 125         on_change = nil
 126         }