Create gui.lua
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239
src/apis/gui.lua
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239
src/apis/gui.lua
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--[[GUI API BY MHIEKURU
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functions available
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OBJECTS
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gui.background()
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gui.progressBar()
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gui.toggleButton()
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gui.pulseButton()
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RENDER
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gui.render()
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]]
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--CORE FUNCTION--
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local function convertArea( vertex )
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local xMax, yMax = term.getSize()
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--if vertex consist of two numbers, convert given as length and height, then set starting vertex to the current cursor position
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if type(vertex[1]) == 'number' and type(vertex[2]) == 'number' and vertex[3] == nil and vertex[4] == nil then
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local x, y = term.getCursorPos()
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if vertex[1] < 0 then
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vertex[3] = xMax+vertex[1]+1
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else
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vertex[3] = x-1+vertex[1]
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end
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if vertex[2] < 0 then
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vertex[4] = yMax+vertex[2]+1
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else
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vertex[4] = y-1+vertex[2]
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end
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vertex[1] = x
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vertex[2] = y
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--if vertex consist of four numbers, convert each number to its [maxAxis plus the negative vertex plus one] if the vertex is a negative value
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elseif type(vertex[1]) == 'number' and type(vertex[2]) == 'number' and type(vertex[3]) == 'number' and type(vertex[4]) == 'number' then
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if vertex[1] < 0 then
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vertex[1] = xMax+vertex[1]+1
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end
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if vertex[2] < 0 then
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vertex[2] = yMax+vertex[2]+1
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end
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if vertex[3] < 0 then
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vertex[3] = xMax+vertex[3]+1
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end
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if vertex[4] < 0 then
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vertex[4] = yMax+vertex[4]+1
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end
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end
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--switch vertex[1] and vertex[3] if vertex[1] is greater
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local placeHolderX, placeHolderY
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if vertex[3] < vertex[1] then
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placeHolderX = vertex[1]
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vertex[1] = vertex[3]
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vertex[3] = placeHolderX
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end
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--switch vertex[1] and vertex[3] if vertex[1] is greater
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if vertex[4] < vertex[2] then
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placeHolderY = vertex[2]
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vertex[2] = vertex[4]
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vertex[4] = placeHolderY
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end
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return vertex
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end
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local function fill( vertex, color )
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term.setBackgroundColor( color )
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for i = vertex[2], vertex[4] do
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term.setCursorPos( vertex[1], i )
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write( string.rep( ' ', vertex[3] - vertex[1] + 1 ) )
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end
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end
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function setCursorPos( vertex, string, position )
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if position == 'c' then
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term.setCursorPos( math.ceil( ( ( vertex[3] - vertex[1] + 1 - #string ) / 2 ) + vertex[1] ),
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math.ceil( ( math.floor(vertex[4]) + math.floor(vertex[2]) ) / 2 ) )
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elseif position == 'l' then
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term.setCursorPos( vertex[1], math.ceil( ( math.floor(vertex[4]) + math.floor(vertex[2]) ) / 2 ) )
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end
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end
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--GUI LIBRARY--
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background = function( color )
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return
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{
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type = 'background',
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color = color
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}
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end
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progressBar = function( vertex, color, string )
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return
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{
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type = 'bar_percent',
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vertex = vertex,
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color = color,
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string = string,
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}
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end
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toggleButton = function( vertex, color, string, guifunction )
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return
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{
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type = 'button_toggle',
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vertex = vertex,
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color = color,
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string = string,
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guifunction = guifunction,
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state = 1
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}
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end
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pulseButton = function( vertex, color, string, guifunction )
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return
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{
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type = 'button_pulse',
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vertex = vertex,
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color = color,
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string = string,
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guifunction = guifunction,
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}
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end
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render = function(gui)
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local counter = 0
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local counterEvent
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local refreshrate = 0
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os.startTimer(0)
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while true do
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if counter == 3 then
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if gui[counterEvent].guifunction then
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local startTime = os.clock()
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gui[counterEvent].guifunction()
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if os.clock() > startTime+refreshrate then
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os.startTimer(refreshrate)
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end
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end
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counter = 0
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elseif counter > 0 then
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counter = counter+1
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end
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--wait event
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local event, mbttn, crsrX, crsrY = os.pullEvent()
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--check and run functions
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if event == 'mouse_click' or event == 'monitor_touch' or event == 'mouse_drag' then
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local startTime = os.clock()
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for i = 1, #gui do
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if gui[i].type == 'button_toggle' or gui[i].type == 'button_pulse' then
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if crsrX >= gui[i].vertex[1] and crsrX <= gui[i].vertex[3] and crsrY >= gui[i].vertex[2] and crsrY <= gui[i].vertex[4] then
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if gui[i].type == 'button_toggle' then
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if gui[i].guifunction then
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gui[i].guifunction[gui[i].state]()
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end
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if mbttn == 1 then -- [+]
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if gui[i].state == #gui[i].color then --only when func activated
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gui[i].state = 1
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else
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gui[i].state = gui[i].state + 1
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end
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else -- [-]
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if gui[i].state == 1 then --only when func activated
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gui[i].state = #gui[i].color
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else
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gui[i].state = gui[i].state - 1
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end
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end
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elseif gui[i].type == 'button_pulse' then
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counter = 1
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counterEvent = i
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end
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end
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end
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end
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if os.clock() > startTime+refreshrate then
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os.startTimer(refreshrate)
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end
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elseif event == 'timer' then
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--render
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for i, v in ipairs(gui) do
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if gui[i].type == 'button_toggle' then
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gui[i].vertex = convertArea( gui[i].vertex )
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--renders button's background
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fill( gui[i].vertex, gui[i].color[gui[i].state] )
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--renders button's text
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setCursorPos( gui[i].vertex, gui[i].string[gui[i].state], 'c' )
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term.setTextColor( colors.white )
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write( gui[i].string[gui[i].state] )
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term.setCursorPos( gui[i].vertex[1], gui[i].vertex[4] + 2 )
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elseif gui[i].type == 'button_pulse' then
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gui[i].vertex = convertArea( gui[i].vertex )
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--renders button's background
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if counter == 0 then
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fill( gui[i].vertex, gui[i].color[1] )
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else
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fill( gui[i].vertex, gui[i].color[2] )
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end
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--renders button's text
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setCursorPos( gui[i].vertex, gui[i].string, 'c' )
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term.setTextColor( colors.white )
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write( gui[i].string )
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term.setCursorPos( gui[i].vertex[1], gui[i].vertex[4] + 2 )
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elseif gui[i].type == 'bar_percent' then
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if gui[i].string then
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local percent = gui[i].string()
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gui[i].vertex = convertArea( gui[i].vertex )
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if percent > 100 then percent = 100 end --limit percent to 100%
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--renders progress bar's background
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fill( {math.floor(((gui[i].vertex[3]-gui[i].vertex[1]+1)*percent/100)+gui[i].vertex[1]), gui[i].vertex[2], gui[i].vertex[3], gui[i].vertex[4]}, gui[i].color[1] )
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--renders progress bar's foreground
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fill( {gui[i].vertex[1], gui[i].vertex[2], math.floor(((gui[i].vertex[3]-gui[i].vertex[1]+1)*percent/100)+gui[i].vertex[1]-1), gui[i].vertex[4]}, gui[i].color[2] )
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--renders data to be displayed
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local perTab = {}
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for j = 1, #tostring( percent .. '%' ) do
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perTab[ j ] = tostring( percent .. '%' ):sub( j, j )
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end
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setCursorPos( gui[i].vertex, perTab, 'c' )
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for j = 1, #perTab do
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local perX, perY = term.getCursorPos()
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if perX <= math.floor(((gui[i].vertex[3]-gui[i].vertex[1]+1)*percent/100)+gui[i].vertex[1]-1) and perX >= gui[i].vertex[1] then
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term.setBackgroundColor(gui[i].color[2])
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term.setTextColor(gui[i].color[1])
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else
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term.setBackgroundColor(gui[i].color[1])
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term.setTextColor(gui[i].color[2])
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end
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write(perTab[j])
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end
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term.setCursorPos( gui[i].vertex[1], gui[i].vertex[4] + 2 )
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end
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elseif gui[i].type == 'background' then
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local x, y = term.getCursorPos()
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term.setBackgroundColor( gui[ i ].color )
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term.clear()
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term.setCursorPos( x, y )
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end
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end
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os.startTimer(refreshrate)
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end
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end
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end
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