UI.Slider

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Available since: Gideros 2023.1
Class: UI

Description

Creates Slider widgets. The widget can be a Slider, or an ArcSlider. Sliders give value from 0 to 1. 

UI.Slider.new(direction,svgpath,resolution,dual,offset)
UI.ArcSlider.new(astart,aend,resolution,dual,offset)

Parameters

direction: (bool) is the Slider widget vertical default = true
svgpath: (string) the Slider widget svg path
resolution: (number) the Slider widget step increment
dual: (bool) has the Slider widget two knobs default = false
offset: (number) the Slider widget knob offset
astart: (number) the Slider widget start angle value
aend: (number) the Slider widget end angle value

Examples

An SVG Slider 

local svg = "M0.6,17.9c7.6,0,13.8,6.3,13.8,14.1L32,32C32,14.3,17.9,0,0.6,0V17.9z"
local gui = UI.Slider.new(false, svg, 0.2, true)
gui:setDimensions(160, 160)
--gui:setVertical(false)
gui:setColor(0xaa0000)
gui:setPosition(50, 50)
--gui:setResolution(0.25)
gui:setCenter(0.4)
gui:setKnobPosition(0.4)

stage:addChild(gui)

An ArcSlider 

local gui = UI.ArcSlider.new(5, 60, 0.1, true, 0.1)
gui:setDimensions(128, 128)
--gui:setVertical(false)
gui:setColor(0xaa0000)
gui:setPosition(50, 50)
--gui:setResolution(0.25)
--gui:setCenter(0.25)
--gui:setKnobPosition(0.25)

stage:addChild(gui)

onWidgetChange 

--Sliders give value from 0 to 1
local sliderA=UI.Slider.new()
sliderA:setDimensions(200,50)
sliderA:setPosition(250,50)
sliderA.name="Slider A"

local sliderB=UI.Slider.new()
sliderB:setDimensions(200,50)
sliderB:setPosition(250,150)
--This slider center is in the middle of the range
sliderB:setCenter(.5)
--Initial value is .6
sliderB:setKnobPosition(.6)
--Discrete steps of .1
sliderB:setResolution(.1)
sliderB.name="Slider B"

stage:addChild(sliderA)
stage:addChild(sliderB)

--Here we put the WidgetAction listener on stage. 
--It will be propagated from each button up to stage through the sprite tree
--First parameter of event listeners are always the source widget of the event
function stage:onWidgetChange(w,v)
	print(w.name.." value is "..v)
end



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