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fst_api.txt
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fst_api.txt
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Formspec toolkit api 0.0.3
==========================
Formspec toolkit is a set of functions to create basic ui elements.
File: fst/ui.lua
----------------
ui.lua adds base ui interface to add additional components to.
ui.add(component) -> returns name of added component
^ add component to ui
^ component: component to add
ui.delete(component) -> true/false if a component was deleted or not
^ remove a component from ui
^ component: component to delete
ui.set_default(name)
^ set component to show if not a single component is set visible
^ name: name of component to set as default
ui.find_by_name(name) --> returns component or nil
^ find a component within ui
^ name: name of component to look for
File: fst/tabview.lua
---------------------
tabview_create(name, size, tabheaderpos) --> returns tabview component
^ create a new tabview component
^ name: name of tabview (has to be unique per ui)
^ size: size of tabview
{
x,
y
}
^ tabheaderpos: upper left position of tabheader (relative to upper left fs corner)
{
x,
y
}
Class reference tabview:
methods:
- add_tab(tab)
^ add a tab to this tabview
^ tab:
{
name = "tabname", -- name of tab to create
caption = "tab caption", -- text to show for tab header
cbf_button_handler = function(tabview, fields, tabname, tabdata), -- callback for button events
--TODO cbf_events = function(tabview, event, tabname), -- callback for events
cbf_formspec = function(tabview, name, tabdata), -- get formspec
tabsize =
{
x, -- x width
y -- y height
}, -- special size for this tab (only relevant if no parent for tabview set)
on_change = function(type,old_tab,new_tab) -- called on tab chang, type is "ENTER" or "LEAVE"
}
- set_autosave_tab(value)
^ tell tabview to automatically save current tabname as "tabview_name"_LAST
^ value: true/false
- set_tab(name)
^ set's tab to tab named "name", returns true/false on success
^ name: name of tab to set
- set_global_event_handler(handler)
^ set a handler to be called prior calling tab specific event handler
^ handler: function(tabview,event) --> returns true to finish event processing false to continue
- set_global_button_handler(handler)
^ set a handler to be called prior calling tab specific button handler
^ handler: function(tabview,fields) --> returns true to finish button processing false to continue
- set_parent(parent)
^ set parent to attach tabview to. TV's with parent are hidden if their parent
is hidden and they don't set their specified size.
^ parent: component to attach to
- show()
^ show tabview
- hide()
^ hide tabview
- delete()
^ delete tabview
- set_fixed_size(state)
^ true/false set to fixed size, variable size
File: fst/dialog.lua
---------------------
Only one dialog can be shown at a time. If a dialog is closed it's parent is
gonna be activated and shown again.
dialog_create(name, cbf_formspec, cbf_button_handler, cbf_events)
^ create a dialog component
^ name: name of component (unique per ui)
^ cbf_formspec: function to be called to get formspec
function(dialogdata)
^ cbf_button_handler: function to handle buttons
function(dialog, fields)
^ cbf_events: function to handle events
function(dialog, event)
Class reference dialog:
methods:
- set_parent(parent)
^ set parent to attach a dialog to
^ parent: component to attach to
- show()
^ show dialog
- hide()
^ hide dialog
- delete()
^ delete dialog from ui
members:
- data
^ variable data attached to this dialog
- parent
^ parent component to return to on exit
File: fst/buttonbar.lua
-----------------------
buttonbar_create(name, cbf_buttonhandler, pos, orientation, size)
^ create a buttonbar
^ name: name of component (unique per ui)
^ cbf_buttonhandler: function to be called on button pressed
function(buttonbar,buttonname,buttondata)
^ pos: position relative to upper left of current shown formspec
{
x,
y
}
^ orientation: "vertical" or "horizontal"
^ size: size of bar
{
width,
height
}
Class reference buttonbar:
methods:
- add_button(btn_id, caption, button_image)
- set_parent(parent)
^ set parent to attach a buttonbar to
^ parent: component to attach to
- show()
^ show buttonbar
- hide()
^ hide buttonbar
- delete()
^ delete buttonbar from ui
Developer doc:
==============
Skeleton for any component:
{
name = "some id", -- unique id
type = "toplevel", -- type of component
-- toplevel: component can be show without additional components
-- addon: component is an addon to be shown along toplevel component
hide = function(this) end, -- called to hide the component
show = function(this) end, -- called to show the component
delete = function(this) end, -- called to delete component from ui
handle_buttons = function(this,fields) -- called upon button press
handle_events = function(this,event) -- called upon event reception
get_formspec = function(this) -- has to return formspec to be displayed
}