local m = mtimer local S = m.translator local esc = minetest.formspec_escape -- Get a button with icon -- -- This function returns a fully formatted button with icon. -- -- The provided ID is set as the button’s ID as well as the button’s image. -- When set as image all colons are replaced with underscores and the id then -- is formatted: `mtimer_ID.png` where `ID` is the given ID. -- -- The definition table sets up the button’s parameters and is fully optional -- even if it makes no sense. -- -- definition = { -- label = 'My Cool Button label' or '', -- width = 5, or 3, -- image_size = 1, or 0.5, -- container = { left = 1, top = 1} or pos_container -- exit_button = true or false -- } -- -- The container table is used to position the button. If the `container` sub -- table is unset, the following table is used, causing the button to be in the -- top left corner of the formspec if not contained in another container. -- -- pos_container = { -- left = 0, -- top = 0 -- } -- -- @param id The ID for the button -- @param definition The definition table as described -- @return string The created button as formspec code mtimer.get_icon_button = function (id, definition) local def = definition or {} -- Set button defaults local b_width = def.width or 3 local i_size = def.image_size or 0.5 local c_left = (def.container or {}).left or 0 local c_top = (def.container or {}).top or 0 -- Calculate button parameters local b_padding = i_size / 4 local b_height = (b_padding * 2) + i_size local l_top_pos = i_size / 2 local l_left_pos = i_size + (i_size / 4) -- Create/Return the button return (table.concat({ 'container[+containerLeft,+containerTop]', ' container[+buttonPadding,+buttonPadding]', ' image[0,0;+imageSize,+imageSize;+icon]', ' label[+labelLeftPos,+labelTopPos;+label]', ' container_end[]', ' +buttonType[0,0;+buttonWidth,+buttonHeight;+id;]', 'container_end[]' }, ' '):gsub('%+%w+', { ['+containerLeft'] = c_left, ['+containerTop'] = c_top, ['+buttonType'] = def.exit_button==true and 'button_exit' or 'button', ['+buttonWidth'] = b_width, ['+buttonHeight'] = b_height, ['+buttonPadding'] = b_padding, ['+imageSize'] = i_size, ['+icon'] = 'mtimer_'..id:gsub(':', '_')..'.png', ['+labelLeftPos'] = l_left_pos, ['+labelTopPos'] = l_top_pos, ['+id'] = id, ['+label'] = esc(def.label or '') })) end -- Build the formspec frame -- -- This function builds and displays a formspec based on the input. -- -- The `id` is the usual formspec ID (for example `mymod:my_formspec`) and -- has to be provided as a simple string all other parameters are provided via -- the `def` table. The following table is an example. -- -- { -- title = 'Nice Title' -- Automatically prefixed for orientation -- prefix = '[Blarb] ' -- Optional title prefix -- width = 8, -- Optional width of the content container -- height = 3, -- Optional height of the content container -- show_to = 'Playername', -- Name of the player to show the formspec to -- hide_buttons = true, -- Optionally hide buttons -- hide_title = true, -- Optionally hide title -- icon_size = 0.5, -- Optionally set title icon size -- content_offset = 0, -- Optionally Offset content height position -- formspec = {} -- Table with formspec definition -- } -- -- When set the title is prefixed with the prefix value. If omitted “[mTimer] ” -- is used. The example creates “[Blarb] Nice Title” as title. Translated -- strings can be used here. The Title and prefix are “formspec-safe” so -- strings that are formspec elements can be used to show them literal. -- -- The default buttons can be hidden by adding `hide_buttons = true` to the -- definition table. If omitted the buttons are shown. When not shown the -- formspec size will be reduced by the amout of units the buttons would -- have taken place. Same for the title with `hide_title = true`. -- -- Some formspec elements do not properly start at 0,0 even if set so. The -- `content_offset` attribute offsets the content vertically by the given -- amount of units. Formspec height and button positions are adapted to the -- given value. -- -- The table entries for `formspec` are the usual formspec elements that -- define what a formspec looks like. You can write all definition in one entry -- or split the definition into multiple entries. -- -- The definition defines the CONTENT of the formspec not the whole formspec so -- you can easily start at 0,0 for your definition. The function automatically -- places everything in relation to the formspec frame and default buttons. -- -- The minimum formspec width and height are 10 units in width and 5 units in -- height. So `width` and `height` can be omitted when all of your content fits -- into the default size. -- -- All formspec table entries can contain the following variables. Variables -- start with a plus sign (+) and are read until any character that is not -- a letter. Some variables are useless, some can be used quite well. -- -- Variable Name Value Type -- -------------------------------------------------------------------------- -- +width Width of the formspec -- +height Height of the formspec -- +iconSize Size of the title icon -- +labelPositionLeft Position of the title label from left side -- +labelPositionTop Position of the title label from top -- +linePosition Position of the title separator line -- +titleText The text of the title label (the dialog title) -- +titleIcon The icon that is used in the dialog title -- +contentPosition Position of the actual content of the dialog -- +buttonsPosition The position where the buttons are -- -- @param id The ID of the formspec -- @param def The definition table as described -- @return string the constructed “frame” mtimer.show_formspec = function (id, def) local title_text = def.title or '' local title_prefix = def.prefix or '[mTimer] ' local content_offset = def.content_offset or 0 local width = (def.width or 0) <= 10 and 10 or def.width local height = ((def.height or 0) <= 4 and 5 or def.height)+content_offset local icon_size = def.icon_size or 0.5 local line_position = 0 local buttons = '' local title = '' -- Set up title if def.hide_title ~= true then line_position = icon_size + 0.25 content_offset = content_offset + line_position + (icon_size / 2) + 0.1 height = height + content_offset + (icon_size / 2) title = table.concat({ 'container[0.25,0.25]', ' image[0,0;+iconSize,+iconSize;+titleIcon]', ' label[+labelPositionLeft,+labelPositionTop;+titleText]', ' box[0,+linePosition;+contentWidth,0.04;#ffffff]', 'container_end[]' }, ' ') end -- Set up buttons if def.hide_buttons ~= true then height = height + 1 buttons = table.concat({ 'container[0.25,+buttonsPosition]', 'box[0,0;+contentWidth,0.04;#ffffff]', mtimer.get_icon_button('main_menu', { label = S('Main Menu'), width = 2.5, container = { top = 0.25 } }), 'container[+contentWidth,0.25]', mtimer.get_icon_button('exit', { label = S('Exit'), exit_button = true, width = 2.5, container = { left = -2.5 } }), mtimer.get_icon_button('default', { label = S('Default'), width = 2.5, container = { left = -5.25 } }), 'container_end[]', -- right side buttons 'container_end[]' -- buttons }, ' ') end -- Build formspec local formspec = table.concat({ 'formspec_version[2]', 'size[+width,+height]', title, 'container[0.25,+contentPosition]', table.concat(def.formspec, ' '), 'container_end[]', buttons }, ' '):gsub('%+%a+', { -- Formspec frame ['+width'] = width + 0.5, ['+height'] = height + 0.5, ['+contentWidth'] = width, ['+contentPosition'] = content_offset + 0.25, ['+iconSize'] = icon_size, -- Title-related settings ['+labelPositionLeft'] = icon_size + (icon_size / 4), ['+labelPositionTop'] = (icon_size / 2), ['+linePosition'] = line_position, ['+titleText'] = minetest.formspec_escape(title_prefix..title_text), ['+titleIcon'] = 'mtimer_'..id:gsub('mtimer:', '')..'.png', -- Buttons-related settings ['+buttonsPosition'] = height - 0.75, }) -- Show formspec to the plauyer minetest.show_formspec(def.show_to, id, formspec) end