commit
24912c357e
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Scarlet Mod v1.0
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By Leslie Krause
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Scarlet is a thin-wrapper library for Minetest that provides a logical, uniform system of
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of measurement for formspecs.
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Repository
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----------------------
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Browse source code:
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https://bitbucket.org/sorcerykid/scarlet
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Download archive:
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https://bitbucket.org/sorcerykid/scarlet/get/master.zip
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https://bitbucket.org/sorcerykid/scarlet/get/master.tar.gz
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Revision History
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----------------------
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Version 1.0b (18-May-2019)
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- initial alpha version
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Compatability
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----------------------
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Minetest 0.4.15+ required
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Dependencies
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----------------------
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ActiveFormspecs Mod (optional)
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https://bitbucket.org/sorcerykid/formspecs
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Installation
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----------------------
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1) Unzip the archive into the mods directory of your game
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2) Rename the scarlet-master directory to "scarlet"
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3) Add "scarlet" as a dependency for any mods using the API
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Source Code License
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----------------------
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The MIT License (MIT)
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Copyright (c) 2018, Leslie Krause (leslie@searstower.org)
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Permission is hereby granted, free of charge, to any person obtaining a copy of this
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software and associated documentation files (the "Software"), to deal in the Software
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without restriction, including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software, and to permit
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persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or
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substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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For more details:
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https://opensource.org/licenses/MIT
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@ -0,0 +1,527 @@
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--------------------------------------------------------
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-- Minetest :: Scarlet Mod (scarlet)
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--
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-- See README.txt for licensing and release notes.
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-- Copyright (c) 2019, Leslie E. Krause
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--------------------------------------------------------
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ScarletDef = function ( screen_dpi, gui_scaling, has_padding )
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local image_size = 0.55 * ( screen_dpi or 72 ) * ( gui_scaling or 1 )
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-- calculate the dot pitch as images per pixel and cells per pixel
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-- using the "black magic" algorithm from guiFormSpecMenu.cpp
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local dot_pitch = {
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-- imgsize (images per pixel)
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ix = 1 / image_size,
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iy = 1 / image_size,
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-- spacing (cells per pixel)
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x = 1 / ( image_size * 5 / 4 ),
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y = 1 / ( image_size * 15 / 13 )
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}
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-- padding width and height in cell units
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-- original formula: image_size * 3.0 / 8
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local padding_width = has_padding and 0 or 3 / 10
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local padding_height = has_padding and 0 or 13 / 40
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-- nominal button height in cell units
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-- NB: this is 2x the value of m_button_height used internally!
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-- original formula: image_size * 15.0 / 13 * 0.35
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local button_height = 0.7
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-- cell margin width and height in cell units
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-- original formula: vx * spacing.x - ( spacing.x - imgsize.x )
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local cell_margin_width = 1 / 5
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local cell_margin_height = 2 / 15
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---------------------------
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-- unit conversion objects
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---------------------------
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local units = ( function ( )
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-- cell size measurements
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local factors = {
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i = { x = 4 / 5, y = 13 / 15 }, -- imgsize
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c = { x = 1, y = 1 }, -- spacing (unity)
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b = { y = button_height }, -- 2 x m_button_height
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}
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local function get_x( v, u )
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return not factors[ u ] and math.floor( v ) * dot_pitch.x or v * factors[ u ].x
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end
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local function get_y( v, u )
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return not factors[ u ] and math.floor( v ) * dot_pitch.y or v * factors[ u ].y
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end
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return { get_x = get_x, get_y = get_y }
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end )( )
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local iunits = ( function ( )
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-- image size measurements
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local factors = {
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i = { x = 1, y = 1 }, -- imgsize (unity)
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c = { x = 5 / 4, y = 15 / 13 }, -- spacing
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b = { y = button_height * 15 / 13 }, -- 2 x m_button_height
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}
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local function get_x( v, u )
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return not factors[ u ] and math.floor( v ) * dot_pitch.ix or v * factors[ u ].x
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end
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local function get_y( v, u )
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return not factors[ u ] and math.floor( v ) * dot_pitch.iy or v * factors[ u ].y
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end
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return { get_x = get_x, get_y = get_y }
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end )( )
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-----------------------
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-- translation helpers
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-----------------------
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local function element( name, params )
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return name .. "[" .. table.concat( params, ";" ) .. "]"
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end
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local function get_pos( params, pos_units, offsets )
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local replace = "%0.3f,%0.3f"
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local pos_x, u1, pos_y, u2 = string.match( params[ 1 ], "^(-?[0-9.]+)([icp]?),(-?[0-9.]+)([icpb]?)$" )
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if not pos_x then return end
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return string.format( replace,
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pos_units.get_x( pos_x, u1 ) + offsets[ 1 ],
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pos_units.get_y( pos_y, u2 ) + offsets[ 2 ]
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)
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end
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local function get_pos_and_dim_x( params, pos_units, dim_units, offsets )
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local replace = "%0.3f,%0.3f;%0.3f,0.000"
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local pos_x, u1, pos_y, u2 = string.match( params[ 1 ], "^(-?[0-9.]+)([icp]?),(-?[0-9.]+)([icpb]?)$" )
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local dim_x, u3 = string.match( params[ 2 ], "^([0-9.]+)([iscp]?)$" )
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if not pos_x or not dim_x then return end
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if u3 == "s" then
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u3 = "i"
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offsets[ 3 ] = offsets[ 3 ] + ( dim_x % 1 == 0 and dim_x - 1 or math.floor( dim_x ) ) * cell_margin_width
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end
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return string.format( replace,
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pos_units.get_x( pos_x, u1 ) + offsets[ 1 ],
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pos_units.get_y( pos_y, u2 ) + offsets[ 2 ],
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dim_units.get_x( dim_x, u3 ) + offsets[ 3 ]
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)
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end
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local function get_pos_and_dim( params, pos_units, dim_units, offsets )
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local replace = "%0.3f,%0.3f;%0.3f,%0.3f"
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local pos_x, u1, pos_y, u2 = string.match( params[ 1 ], "^(-?[0-9.]+)([icp]?),(-?[0-9.]+)([icpb]?)$" )
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local dim_x, u3, dim_y, u4 = string.match( params[ 2 ], "^([0-9.]+)([iscp]?),([0-9.]+)([iscpb]?)$" )
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if not pos_x or not dim_x then return end
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if u3 == "s" then
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u3 = "i"
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offsets[ 3 ] = offsets[ 3 ] + ( dim_x % 1 == 0 and dim_x - 1 or math.floor( dim_x ) ) * cell_margin_width
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end
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if u4 == "s" then
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u4 = "i"
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offsets[ 4 ] = offsets[ 4 ] + ( dim_y % 1 == 0 and dim_y - 1 or math.floor( dim_y ) ) * cell_margin_height
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end
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return string.format( replace,
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pos_units.get_x( pos_x, u1 ) + offsets[ 1 ],
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pos_units.get_y( pos_y, u2 ) + offsets[ 2 ],
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dim_units.get_x( dim_x, u3 ) + offsets[ 3 ],
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dim_units.get_y( dim_y, u4 ) + offsets[ 4 ]
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)
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end
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------------------------------
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-- generic element subclasses
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------------------------------
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local function ElemPos( pos_units, length )
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return function ( name, params )
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local pos = get_pos( params, pos_units, {
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-padding_width,
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-padding_height
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} )
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assert( pos and #params == length, "Cannot parse formspec element " .. name .. "[]" )
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return element( name, { pos, unpack( params, 2 ) } )
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end
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end
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local function ElemPosAndDim( pos_units, dim_units, length, is_unlimited )
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return function ( name, params )
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local pos_and_dim = get_pos_and_dim( params, pos_units, dim_units, {
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-padding_width,
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-padding_height,
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0,
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0
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} )
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assert( pos_and_dim and ( #params == length or is_unlimited and #params > length ), "Cannot parse formspec element " .. name .. "[]" )
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return element( name, { pos_and_dim, unpack( params, 3 ) } )
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end
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end
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local function ElemPosAndDimX( pos_units, dim_units, length, is_unlimited )
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return function ( name, params )
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local pos_and_dim_x = get_pos_and_dim_x( params, pos_units, dim_units, {
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-padding_width,
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-padding_height,
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0
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} )
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assert( pos_and_dim_x and ( #params == length or is_unlimited and #params > length ), "Cannot parse formspec element " .. name .. "[]" )
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return element( name, { pos_and_dim_x, unpack( params, 3 ) } )
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end
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end
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------------------------------
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-- special element subclasses
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------------------------------
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local function SizeElement( )
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local pattern = "^(%d+)([iscp]?),(%d+)([iscpb]?)$"
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local replace = "%0.3f,%0.3f,true"
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return function ( name, params )
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local dim, count = string.gsub( params[ 1 ], pattern, function ( dim_x, u1, dim_y, u2 )
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return string.format( replace,
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units.get_x( dim_x, u1 ),
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units.get_y( dim_y, u2 )
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)
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end )
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assert( count == 1, "Cannot parse formspec element size[]" )
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return element( "size", { dim } )
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end
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end
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local function ListElement( )
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local pattern = "^(%d+)([icp]?),(%d+)([icpb]?)$"
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local replace = "%0.3f,%0.3f"
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return function ( name, params )
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local pos, count = string.gsub( params[ 3 ], pattern, function ( pos_x, u1, pos_y, u2 )
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return string.format( replace,
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units.get_x( pos_x, u1 ) - padding_width,
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units.get_y( pos_y, u2 ) - padding_height
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)
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end )
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assert( count == 1, "Cannot parse formspec element list[]" )
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return element( "list", { params[ 1 ], params[ 2 ], pos, unpack( params, 4 ) } )
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end
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end
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-- container[<x>,<y>]
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local function ContainerElement( )
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return function ( name, params )
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local pos = get_pos( params, units, { 0, 0 } )
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assert( pos and #params == 1, "Cannot parse formspec element container[]" )
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return element( "container", { pos } )
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end
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end
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-- background[<w>,<h>;<texture name>]
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local function BackgroundElement( )
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local pattern = "^(-?%d+),(-?%d+)$"
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local replace = "%d,%d;0,0"
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return function ( name, params )
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local dim, count = string.gsub( params[ 1 ], pattern, function ( pos_x, pos_y )
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return string.format( replace, -pos_x, -pos_y )
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end )
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assert( count == 1, "Cannot parse formspec element background[]" )
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return element( "background", { dim, params[ 2 ], "true" } )
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end
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end
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-- bgimage[<x>,<y>;<w>,<h>;<texture name>]
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local function BgImageElement( )
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-- original formula: vx * spacing.x - ( spacing.x - imgsize.x ) / 2
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local pos_offset_x = 0.5 * 1 / 5
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local pos_offset_y = 0.5 * 2 / 15
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return function ( name, params )
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local pos_and_dim = get_pos_and_dim( params, units, units, {
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-padding_width + pos_offset_x,
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-padding_height + pos_offset_y,
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0,
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0
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} )
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assert( pos_and_dim and #params == 3, "Cannot parse formspec element bgimage[]" )
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return element( "background", { pos_and_dim, params[ 3 ], "false" } )
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end
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end
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-- label[<x>,<y>;<label>]
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-- vertlabel[<x>,<y>;<label>]
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local function LabelElement( is_vertical )
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-- original formula: ( vy + 7 / 30 ) * spacing.y - m_button_height
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local pos_offset_y = -7 / 30 + button_height / 2
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return function ( name, params )
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local pos = get_pos( params, units, {
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-padding_width,
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-padding_height + pos_offset_y,
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} )
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assert( pos and #params == 2, "Cannot parse formspec element " .. name .. "[]" )
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return element( is_vertical and "vertlabel" or "label", { pos, params[ 2 ] } )
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end
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end
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-- checkbox[<x>,<y>;<w>;<name>;<label>]
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local function CheckboxElement( )
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-- original formula: vy * spacing.y + ( imgsize.y / 2 ) - m_button_height
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local pos_offset_y = -13 / 30 + button_height / 2
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return function ( name, params )
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local pos = get_pos( params, units, {
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-padding_width,
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-padding_height + pos_offset_y,
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} )
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assert( pos and #params == 4, "Cannot parse formspec element checkbox[]" )
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return element( "checkbox", { pos, unpack( params, 3 ) } )
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end
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end
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-- button[<x>,<y>;<w>;<name>;<label>]
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local function ButtonElement( )
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return function ( name, params )
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local pos_and_dim = get_pos_and_dim( params, units, units, {
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-padding_width,
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-padding_height,
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cell_margin_width,
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cell_margin_height,
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} )
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assert( pos_and_dim and #params == 4, "Cannot parse formspec element " .. name .. "[]" )
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return element( "image_" .. name, { pos_and_dim, "", unpack( params, 3 ) } )
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end
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end
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-- image_button[<x>,<y>;<w>;<name>;<texture_name>;<label>]
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local function ImageButtonElement( )
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return function ( name, params )
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local pos_and_dim = get_pos_and_dim( params, units, units, {
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-padding_width,
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-padding_height,
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cell_margin_width,
|
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cell_margin_height,
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||||
} )
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assert( pos_and_dim and ( #params == 5 or #params == 8 ), "Cannot parse formspec element " .. name .. "[]" )
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return element( name, { pos_and_dim, params[ 4 ], params[ 3 ], unpack( params, 5 ) } )
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||||
end
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end
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-- item_image_button[<x>,<y>;<w>,<h>;<item name>;<name>;<label>]
|
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|
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local function ItemImageButtonElement( )
|
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return function ( name, params )
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local pos_and_dim = get_pos_and_dim( params, units, units, {
|
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-padding_width,
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||||
-padding_height,
|
||||
cell_margin_width,
|
||||
cell_margin_height,
|
||||
} )
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assert( pos_and_dim and #params == 5, "Cannot parse formspec element item_image_button[]" )
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||||
return element( "item_image_button", { pos_and_dim, params[ 4 ], params[ 3 ], params[ 5 ] } )
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||||
end
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||||
end
|
||||
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||||
-- textlist[<x>,<y>;<w>,<h>;<name>;...]
|
||||
|
||||
local function TextListElement( )
|
||||
return function ( name, params )
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||||
local pos_and_dim = get_pos_and_dim( params, units, units, {
|
||||
-padding_width,
|
||||
-padding_height,
|
||||
0,
|
||||
0,
|
||||
} )
|
||||
assert( pos_and_dim and ( #params == 4 or #params == 5 ), "Cannot parse formspec element textlist[]" )
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||||
return element( "textlist", { pos_and_dim, unpack( params, 3 ) } )
|
||||
end
|
||||
end
|
||||
|
||||
-- dropdown[<x>,<y>;<w>,<h>;<name>;...]
|
||||
|
||||
local function DropdownElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim_x = get_pos_and_dim_x( params, units, units, {
|
||||
-padding_width,
|
||||
-padding_height,
|
||||
0,
|
||||
0,
|
||||
} )
|
||||
assert( pos_and_dim_x and #params == 5, "Cannot parse formspec element dropdown[]" )
|
||||
return element( "dropdown", { pos_and_dim_x, unpack( params, 3 ) } )
|
||||
end
|
||||
end
|
||||
|
||||
-- pwdfield[<x>,<y>;<w>;<name>]
|
||||
|
||||
local function PwdFieldElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim_x = get_pos_and_dim_x( params, units, units, {
|
||||
0,
|
||||
button_height / 2,
|
||||
cell_margin_width,
|
||||
} )
|
||||
assert( pos_and_dim_x, #params == 3, "Cannot parse formspec element pwdfield[]" )
|
||||
return element( "pwdfield", { pos_and_dim_x, params[ 3 ], "" } )
|
||||
end
|
||||
end
|
||||
|
||||
-- field[<x>,<y>;<w>;<name>;<default>]
|
||||
|
||||
local function FieldElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim_x = get_pos_and_dim_x( params, units, units, {
|
||||
0,
|
||||
button_height / 2,
|
||||
cell_margin_width,
|
||||
} )
|
||||
assert( pos_and_dim_x and #params == 4, "Cannot parse formspec element field[]" )
|
||||
return element( "field", { pos_and_dim_x, params[ 3 ], "", params[ 4 ] } )
|
||||
end
|
||||
end
|
||||
|
||||
-- caption[<x>,<y>;<w>,<h>;<caption>]
|
||||
|
||||
local function CaptionElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim = get_pos_and_dim( params, units, units, {
|
||||
0,
|
||||
-button_height / 2,
|
||||
cell_margin_width,
|
||||
cell_margin_height + button_height / 2
|
||||
} )
|
||||
assert( pos_and_dim and #params == 3, "Cannot parse formspec element caption[]" )
|
||||
return element( "textarea", { pos_and_dim, "", params[ 3 ], "" } )
|
||||
end
|
||||
end
|
||||
|
||||
-- textarea[<x>,<y>;<w>,<h>;<name>;<default>]
|
||||
|
||||
local function TextAreaElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim = get_pos_and_dim( params, units, units, {
|
||||
0,
|
||||
-button_height / 2,
|
||||
cell_margin_width,
|
||||
cell_margin_height + button_height / 2
|
||||
} )
|
||||
assert( pos_and_dim and #params == 4, "Cannot parse formspec element textarea[]" )
|
||||
return element( "textarea", { pos_and_dim, params[ 3 ], "", params[ 4 ] } )
|
||||
end
|
||||
end
|
||||
|
||||
-- horz_scrollbar[<x>,<y>;<w>,<h>;<name>;<value>]
|
||||
-- vert_scrollbar[<x>,<y>;<w>,<h>;<name>;<value>]
|
||||
|
||||
local function ScrollbarElement( orientation )
|
||||
return function ( name, params )
|
||||
local pos_and_dim = get_pos_and_dim( params, units, units, {
|
||||
-padding_width,
|
||||
-padding_height,
|
||||
0,
|
||||
0
|
||||
} )
|
||||
assert( pos_and_dim and #params == 4, "Cannot parse formspec element " .. name .. "[]" )
|
||||
return element( "scrollbar", { pos_and_dim, orientation, unpack( params, 3 ) } )
|
||||
end
|
||||
end
|
||||
|
||||
-- area_tooltip[<x>,<y>;<w>,<h>;<name>;<tooltip_text>]
|
||||
|
||||
local function AreaTooltipElement( )
|
||||
return function ( name, params )
|
||||
local pos_and_dim = get_pos_and_dim( params, units, units, {
|
||||
-padding_width,
|
||||
-padding_height,
|
||||
0,
|
||||
0
|
||||
} )
|
||||
assert( pos_and_dim and #params >= 3, "Cannot parse formspec element area_tooltip[]" )
|
||||
return element( "tooltip", { pos_and_dim, unpack( params, 3 ) } )
|
||||
end
|
||||
end
|
||||
|
||||
-- tabheader[<x>,<y>;<w>,<h>;<name>;<tooltip_text>]
|
||||
|
||||
local function TabHeaderElement( )
|
||||
return function ( name, params )
|
||||
local pos = get_pos( params, units, {
|
||||
0,
|
||||
0
|
||||
} )
|
||||
assert( pos and ( #params == 4 or #params == 6 ), "Cannot parse formspec element tabheader[]" )
|
||||
return element( "tabheader", { pos, unpack( params, 2 ) } )
|
||||
end
|
||||
end
|
||||
|
||||
-------------------
|
||||
-- element parsers
|
||||
-------------------
|
||||
|
||||
local element_parsers = {
|
||||
size = SizeElement( ),
|
||||
list = ListElement( ),
|
||||
background = BackgroundElement( ),
|
||||
box = ElemPosAndDim( units, units, 3, false ),
|
||||
button = ButtonElement( ),
|
||||
button_exit = ButtonElement( ),
|
||||
image_button = ImageButtonElement( ),
|
||||
image_button_exit = ImageButtonElement( ),
|
||||
bgimage = BgImageElement( ),
|
||||
label = LabelElement( false ),
|
||||
vertlabel = LabelElement( true ),
|
||||
checkbox = CheckboxElement( ),
|
||||
pwdfield = PwdFieldElement( ),
|
||||
item_image_button = ItemImageButtonElement( ),
|
||||
image = ElemPosAndDim( units, iunits, 3, false ),
|
||||
item_image = ElemPosAndDim( units, iunits, 3, false ),
|
||||
field = FieldElement( ),
|
||||
dropdown = DropdownElement( ),
|
||||
textlist = TextListElement( ),
|
||||
vert_scrollbar = ScrollbarElement( "vertical" ),
|
||||
horz_scrollbar = ScrollbarElement( "horizontal" ),
|
||||
table = ElemPosAndDim( units, units, 5, false ),
|
||||
textarea = TextAreaElement( ),
|
||||
caption = CaptionElement( ),
|
||||
area_tooltip = AreaTooltipElement( ), -- added in 5.0 (https://github.com/minetest/minetest/pull/7469)
|
||||
container = ContainerElement( ), -- fixed in 5.0 (https://github.com/minetest/minetest/pull/7497)
|
||||
tabheader = TabHeaderElement( ),
|
||||
}
|
||||
|
||||
-------------------------
|
||||
-- translation interface
|
||||
-------------------------
|
||||
|
||||
local function translate( fs )
|
||||
fs = string.gsub( fs, "([a-z_]+)%[(.-)%]", function( name, parts )
|
||||
local parser = element_parsers[ name ]
|
||||
if parser then
|
||||
local res = parser( name, string.split( parts, ";", true ) )
|
||||
return res
|
||||
end
|
||||
end )
|
||||
|
||||
minetest.debug( "ACTION", "Result:" .. fs )
|
||||
return fs
|
||||
end
|
||||
|
||||
return {
|
||||
-- public method
|
||||
translate = translate
|
||||
}
|
||||
end
|
||||
|
||||
scarlet = {
|
||||
translate_96dpi = ScarletDef( 96, 1, false ).translate,
|
||||
translate_72dpi = ScarletDef( 72, 1, false ).translate
|
||||
}
|
||||
Loading…
Reference in New Issue