luaatc_envs.git - LuaATC environments

path: root/Crossroads/nodes/(2009,4,993).lua

	Commit message (Collapse)	Author	Age
*	State at 2019-12-13	autocommitter	2024-04-22

--Minetest --Copyright (C) 2014 sapier -- --This program is free software; you can redistribute it and/or modify --it under the terms of the GNU Lesser General Public License as published by --the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. -- --You should have received a copy of the GNU Lesser General Public License along --with this program; if not, write to the Free Software Foundation, Inc., --51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -------------------------------------------------------------------------------- -- A tabview implementation -- -- Usage: -- -- tabview.create: returns initialized tabview raw element -- -- element.add(tab): add a tab declaration -- -- element.handle_buttons() -- -- element.handle_events() -- -- element.getFormspec() returns formspec of tabview -- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- local function add_tab(self,tab) assert(tab.size == nil or (type(tab.size) == table and tab.size.x ~= nil and tab.size.y ~= nil)) assert(tab.cbf_formspec ~= nil and type(tab.cbf_formspec) == "function") assert(tab.cbf_button_handler == nil or type(tab.cbf_button_handler) == "function") assert(tab.cbf_events == nil or type(tab.cbf_events) == "function") local newtab = { name = tab.name, caption = tab.caption, button_handler = tab.cbf_button_handler, event_handler = tab.cbf_events, get_formspec = tab.cbf_formspec, tabsize = tab.tabsize, on_change = tab.on_change, tabdata = {}, } self.tablist[#self.tablist + 1] = newtab if self.last_tab_index == #self.tablist then self.current_tab = tab.name if tab.on_activate ~= nil then tab.on_activate(nil,tab.name) end end end -------------------------------------------------------------------------------- local function get_formspec(self) local formspec = "" if not self.hidden and (self.parent == nil or not self.parent.hidden) then if self.parent == nil then local tsize = self.tablist[self.last_tab_index].tabsize or {width=self.width, height=self.height} formspec = formspec .. string.format("size[%f,%f,%s]",tsize.width,tsize.height, dump(self.fixed_size)) end formspec = formspec .. self:tab_header() formspec = formspec .. self.tablist[self.last_tab_index].get_formspec( self, self.tablist[self.last_tab_index].name, self.tablist[self.last_tab_index].tabdata, self.tablist[self.last_tab_index].tabsize ) end return formspec end -------------------------------------------------------------------------------- local function handle_buttons(self,fields) if self.hidden then return false end if self:handle_tab_buttons(fields) then return true end if self.glb_btn_handler ~= nil and self.glb_btn_handler(self,fields) then return true end if self.tablist[self.last_tab_index].button_handler ~= nil then return self.tablist[self.last_tab_index].button_handler( self, fields, self.tablist[self.last_tab_index].name, self.tablist[self.last_tab_index].tabdata ) end return false end -------------------------------------------------------------------------------- local function handle_events(self,event) if self.hidden then return false end if self.glb_evt_handler ~= nil and self.glb_evt_handler(self,event) then return true end if self.tablist[self.last_tab_index].evt_handler ~= nil then return self.tablist[self.last_tab_index].evt_handler( self, event, self.tablist[self.last_tab_index].name, self.tablist[self.last_tab_index].tabdata ) end return false end -------------------------------------------------------------------------------- local function tab_header(self) local toadd = "" for i=1,#self.tablist,1 do if toadd ~= "" then toadd = toadd .. "," end toadd = toadd .. self.tablist[i].caption end return string.format("tabheader[%f,%f;%s;%s;%i;true;false]", self.header_x, self.header_y, self.name, toadd, self.last_tab_index); end -------------------------------------------------------------------------------- local function switch_to_tab(self, index) --first call on_change for tab to leave if self.tablist[self.last_tab_index].on_change ~= nil then self.tablist[self.last_tab_index].on_change("LEAVE", self.current_tab, self.tablist[index].name) end --update tabview data self.last_tab_index = index local old_tab = self.current_tab self.current_tab = self.tablist[index].name if (self.autosave_tab) then core.setting_set(self.name .. "_LAST",self.current_tab) end -- call for tab to enter if self.tablist[index].on_change ~= nil then self.tablist[index].on_change("ENTER", old_tab,self.current_tab) end end -------------------------------------------------------------------------------- local function handle_tab_buttons(self,fields) --save tab selection to config file if fields[self.name] then local index = tonumber(fields[self.name]) switch_to_tab(self, index) return true end return false end -------------------------------------------------------------------------------- local function set_tab_by_name(self, name) for i=1,#self.tablist,1 do if self.tablist[i].name == name then switch_to_tab(self, i) return true end end return false end -------------------------------------------------------------------------------- local function hide_tabview(self) self.hidden=true --call on_change as we're not gonna show self tab any longer if self.tablist[self.last_tab_index].on_change ~= nil then self.tablist[self.last_tab_index].on_change("LEAVE", self.current_tab, nil) end end -------------------------------------------------------------------------------- local function show_tabview(self) self.hidden=false -- call for tab to enter if self.tablist[self.last_tab_index].on_change ~= nil then self.tablist[self.last_tab_index].on_change("ENTER", nil,self.current_tab) end end local tabview_metatable = { add = add_tab, handle_buttons = handle_buttons, handle_events = handle_events, get_formspec = get_formspec, show = show_tabview, hide = hide_tabview, delete = function(self) ui.delete(self) end, set_parent = function(self,parent) self.parent = parent end, set_autosave_tab = function(self,value) self.autosave_tab = value end, set_tab = set_tab_by_name, set_global_button_handler = function(self,handler) self.glb_btn_handler = handler end, set_global_event_handler = function(self,handler) self.glb_evt_handler = handler end, set_fixed_size = function(self,state) self.fixed_size = state end, tab_header = tab_header, handle_tab_buttons = handle_tab_buttons } tabview_metatable.__index = tabview_metatable -------------------------------------------------------------------------------- function tabview_create(name, size, tabheaderpos) local self = {} self.name = name self.type = "toplevel" self.width = size.x self.height = size.y self.header_x = tabheaderpos.x self.header_y = tabheaderpos.y setmetatable(self, tabview_metatable) self.fixed_size = true self.hidden = true self.current_tab = nil self.last_tab_index = 1 self.tablist = {} self.autosave_tab = false ui.add(self) return self end