diff options
Diffstat (limited to 'font_api')
| -rw-r--r-- | font_api/fontform.lua | 171 | ||||
| -rw-r--r-- | font_api/init.lua | 8 |
2 files changed, 175 insertions, 4 deletions
diff --git a/font_api/fontform.lua b/font_api/fontform.lua new file mode 100644 index 0000000..118d92d --- /dev/null +++ b/font_api/fontform.lua @@ -0,0 +1,171 @@ +--[[ + 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 diff --git a/font_api/init.lua b/font_api/init.lua index dc3a3e0..27cba99 100644 --- a/font_api/init.lua +++ b/font_api/init.lua @@ -29,9 +29,10 @@ font_api.path = minetest.get_modpath(font_api.name) dofile(font_api.path.."/font.lua") dofile(font_api.path.."/registry.lua") +dofile(font_api.path.."/fontform.lua") --- Standard on_display_update entity callback. --- Node should have a corresponding display_entity with size, resolution and +-- Node should have a corresponding display_entity with size, resolution and -- maxlines fields and optionally halign, valign and color fields -- @param pos Node position -- @param objref Object reference of entity @@ -49,8 +50,8 @@ function font_api.on_display_update(pos, objref) local maxlines = def.maxlines or 1 -- TODO:How to do w/o maxlines ? - objref:set_properties({ - textures={font:make_text_texture(text, + objref:set_properties({ + textures={font:make_text_texture(text, font:get_height(maxlines) * def.size.x / def.size.y / (def.aspect_ratio or 1), font:get_height(maxlines), @@ -62,4 +63,3 @@ end -- Compatibility font_lib = font_api - |