mirror of
https://github.com/minetest/minetest.git
synced 2024-09-12 08:28:36 +02:00
293 lines
8.7 KiB
Lua
293 lines
8.7 KiB
Lua
--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,
|
|
formspec_version = tab.formspec_version or 6,
|
|
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)
|
|
if self.hidden or (self.parent ~= nil and self.parent.hidden) then
|
|
return ""
|
|
end
|
|
local tab = self.tablist[self.last_tab_index]
|
|
|
|
local content, prepend = tab.get_formspec(self, tab.name, tab.tabdata, tab.tabsize)
|
|
|
|
local tsize = tab.tabsize or { width = self.width, height = self.height }
|
|
if self.parent == nil and not prepend then
|
|
prepend = string.format("size[%f,%f,%s]", tsize.width, tsize.height,
|
|
dump(self.fixed_size))
|
|
|
|
if tab.formspec_version then
|
|
prepend = ("formspec_version[%d]"):format(tab.formspec_version) .. prepend
|
|
end
|
|
end
|
|
|
|
local end_button_size = 0.75
|
|
|
|
local tab_header_size = { width = tsize.width, height = 0.85 }
|
|
if self.end_button then
|
|
tab_header_size.width = tab_header_size.width - end_button_size - 0.1
|
|
end
|
|
|
|
local formspec = (prepend or "") .. self:tab_header(tab_header_size) .. content
|
|
|
|
if self.end_button then
|
|
formspec = formspec ..
|
|
("style[%s;noclip=true;border=false]"):format(self.end_button.name) ..
|
|
("tooltip[%s;%s]"):format(self.end_button.name, self.end_button.label) ..
|
|
("image_button[%f,%f;%f,%f;%s;%s;]"):format(
|
|
self.width - end_button_size,
|
|
(-tab_header_size.height - end_button_size) / 2,
|
|
end_button_size,
|
|
end_button_size,
|
|
core.formspec_escape(self.end_button.icon),
|
|
self.end_button.name)
|
|
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.end_button and fields[self.end_button.name] then
|
|
return self.end_button.on_click(self)
|
|
end
|
|
|
|
if self.glb_btn_handler ~= nil and
|
|
self.glb_btn_handler(self, fields) then
|
|
return true
|
|
end
|
|
|
|
local tab = self.tablist[self.last_tab_index]
|
|
if tab.button_handler ~= nil then
|
|
return tab.button_handler(self, fields, tab.name, tab.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
|
|
|
|
local tab = self.tablist[self.last_tab_index]
|
|
if tab.evt_handler ~= nil then
|
|
return tab.evt_handler(self, event, tab.name, tab.tabdata)
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
|
|
--------------------------------------------------------------------------------
|
|
local function tab_header(self, size)
|
|
local toadd = ""
|
|
|
|
for i = 1, #self.tablist do
|
|
if toadd ~= "" then
|
|
toadd = toadd .. ","
|
|
end
|
|
|
|
local caption = self.tablist[i].caption
|
|
if type(caption) == "function" then
|
|
caption = caption(self)
|
|
end
|
|
|
|
toadd = toadd .. caption
|
|
end
|
|
return string.format("tabheader[%f,%f;%f,%f;%s;%s;%i;true;false]",
|
|
self.header_x, self.header_y, size.width, size.height, 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.settings: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,
|
|
set_end_button =
|
|
function(self, v) self.end_button = v 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
|