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ESO Lua File v100022

libraries/zo_spinner/zo_spinner.lua

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ZO_Spinner = ZO_CallbackObject:Subclass()
SPINNER_MODE_CLAMP = 1
SPINNER_MODE_WRAP = 2
local SMALL_INCREMENT = 1
local LARGE_INCREMENT = 10
-- Wrap for arbitrary ranges including negative numbers
-- Does *not* support floats
local function WrapInt(value, min, max)
    return (zo_floor(value) - min) % (max - min + 1) + min
end
local function ClampInt(value, min, max, step)
    value = zo_roundToNearest(value, step)
    return zo_clamp(value, min, max)
end
function ZO_Spinner:New(...)
    local spinner = ZO_CallbackObject.New(self)
    spinner:Initialize(...)
    return spinner
end
local DEFAULT_ACCELERATION_TIME_MS = 350
function ZO_Spinner:Initialize(control, min, max, isGamepad, spinnerMode, accelerationTime)
    self.control = control
    self.decreaseButton = control:GetNamedChild("Decrease")
    self.increaseButton = control:GetNamedChild("Increase")
    self.display = control:GetNamedChild("Display")
    self.enabled = true
    self.mouseEnabled = true
    self.normalColor = ZO_SELECTED_TEXT
    self.errorColor = ZO_ERROR_COLOR
    
    if(isGamepad ~= true) then
        self:InitializeHandlers()
    end
    if spinnerMode == SPINNER_MODE_WRAP then
        self.constrainRangeFunc = WrapInt
    else 
        self.constrainRangeFunc = ClampInt
    end
    self.step = 1
    self.value = math.huge
    self:SetMinMax(min, max)
    self.spinnerUpSound = SOUNDS.SPINNER_UP
    self.spinnerDownSound = SOUNDS.SPINNER_DOWN
    self.accelerationTime = accelerationTime or DEFAULT_ACCELERATION_TIME_MS
end
local DIRECTION_INCREMENT = 1
local DIRECTION_DECREMENT = -1
function ZO_Spinner:InitializeHandlers()
    local function Increment() 
        self:OnButtonDown(DIRECTION_INCREMENT) 
    end
    local function Decrement() 
        self:OnButtonDown(DIRECTION_DECREMENT)
    end
    
    local function Release()
        self:OnButtonUp()
    end
    self.increaseButton:SetHandler("OnMouseDown", Increment)
    self.increaseButton:SetHandler("OnMouseDoubleClick", Increment)
    self.increaseButton:SetHandler("OnMouseUp", Release)
    self.decreaseButton:SetHandler("OnMouseDown", Decrement)
    self.decreaseButton:SetHandler("OnMouseDoubleClick", Decrement)
    self.decreaseButton:SetHandler("OnMouseUp", Release)
    local function OnMouseWheel(_, delta)
        self:OnMouseWheel(delta) 
    end
    self.control:SetHandler("OnMouseWheel", OnMouseWheel)
    if self.display and self.display:GetType() == CT_EDITBOX then
        self.display:SetHandler("OnFocusLost", function() self:OnFocusLost() end)
        self.display:SetHandler("OnMouseWheel", OnMouseWheel)
    end
end
function ZO_Spinner:SetNormalColor(normalColor)
    self.normalColor = normalColor
    self:UpdateDisplay()
end
function ZO_Spinner:SetErrorColor(errorColor)
    self.errorColor = errorColor
    self:UpdateDisplay()
end
function ZO_Spinner:SetFont(fontString)
    self.display:SetFont(fontString)
end
function ZO_Spinner:OnMouseWheel(delta)
    if self.enabled then
        self:ModifyValue((delta > 0 and DIRECTION_INCREMENT or DIRECTION_DECREMENT) * (IsShiftKeyDown() and LARGE_INCREMENT or SMALL_INCREMENT))
    end
end
function ZO_Spinner:OnFocusLost(delta)
    local text = self.display:GetText()
    local textAsNumber = tonumber(text)
    if not textAsNumber or not self:SetValue(textAsNumber) then
        self:UpdateDisplay()
    end
end
do
    local TIME_BETWEEN_MODIFIES = 1000
    local MAX_ACCEL_FACTOR = 25
    function ZO_Spinner:GetOnUpdateFunction()
        self.onUpdate = self.onUpdate or function()
            local now = GetGameTimeMilliseconds()
            local startDelta = now - self.startTime
            local accelerationFactor = zo_min(zo_floor(startDelta / self.accelerationTime) + 1, MAX_ACCEL_FACTOR)
            self.atMaxAccelerationFactor = accelerationFactor == MAX_ACCEL_FACTOR
            local delta = now - self.lastUpdate
            self.timeUntilNextModify = self.timeUntilNextModify - delta * accelerationFactor
            if self.timeUntilNextModify < 0 then
                self.timeUntilNextModify = self.timeUntilNextModify + TIME_BETWEEN_MODIFIES
                self:ModifyValue(self.direction * (IsShiftKeyDown() and LARGE_INCREMENT or SMALL_INCREMENT))
            end
            self.lastUpdate = now
        end
        return self.onUpdate
    end
    function ZO_Spinner:OnButtonDown(direction)
        self.direction = direction
        local now = GetGameTimeMilliseconds()
        self.startTime = now
        self.lastUpdate = now
        self.timeUntilNextModify = TIME_BETWEEN_MODIFIES
        self.control:SetHandler("OnUpdate", self:GetOnUpdateFunction())
        if IsShiftKeyDown() then
            self:ModifyValue(self.direction * LARGE_INCREMENT)
        else
            self:ModifyValue(self.direction * SMALL_INCREMENT)
        end
    end
    function ZO_Spinner:IsAtMaxAccelerationFactor()
        return self.atMaxAccelerationFactor
    end
end
function ZO_Spinner:OnButtonUp(direction)
    self.control:SetHandler("OnUpdate", nil)
end
function ZO_Spinner:AllowUnknownQuantities(unknownCharacter)
    if unknownCharacter then
        self.unknownQuantityCharacter = unknownCharacter
    end
end
--[[A function responsible to constraining a spinner to a set of valid values.
The function takes a value and a requested delta. It should return the value
plus the delta (the target value) if that is in the valid set. Otherwise it should
return the closest valid value to the the target value]]
--
end
function ZO_Spinner:SetStep(step)
    if self.step ~= step then
        self.step = step
        if not self:SetValue(self.value) then
            self:UpdateButtons()
        end
    end
end
function ZO_Spinner:GetStep()
    return self.step
end
function ZO_Spinner:SetMinMax(min, max)
    min = min or 0
    max = max or math.huge
    if self.min ~= min or self.max ~= max then
        self.min = min
        self.max = max
        if not self:SetValue(self.value) then
            self:UpdateButtons()
        end
    end
end
function ZO_Spinner:GetMin()
    if type(self.min) == "function" then
        return self.min(self)
    end
    return self.min
end
function ZO_Spinner:GetMax()
    if type(self.max) == "function" then
        return self.max(self)
    end
    return self.max
end
function ZO_Spinner:GetControl()
    return self.control
end
function ZO_Spinner:GetValue()
    return self.value
end
function ZO_Spinner:SetSoftMax(softMax)
    self.softMax = softMax
    self:UpdateDisplay()
end
function ZO_Spinner:GetSoftMax()
    return self.softMax
end
function ZO_Spinner:UpdateButtons()
    if self.hideButtons then
        self.increaseButton:SetHidden(true)
        self.decreaseButton:SetHidden(true)
    else
        self.increaseButton:SetHidden(false)
        self.decreaseButton:SetHidden(false)
        if self.value == nil or not self.enabled then
            self.increaseButton:SetEnabled(false)
            self.decreaseButton:SetEnabled(false)
        else
            self.increaseButton:SetEnabled(self.value + self.step <= self:GetMax())
            self.decreaseButton:SetEnabled(self.value - self.step >= self:GetMin())
        end
    end    
    if self.display then
        if self.display:GetType() == CT_EDITBOX then
            if self:GetMax() == self:GetMin() or self.value == nil or not self.enabled then
                self.display:SetMouseEnabled(false)
            else
                self.display:SetMouseEnabled(self.mouseEnabled)
            end
        end
    end
    self.control:SetMouseEnabled(self.mouseEnabled)
    self.increaseButton:SetMouseEnabled(self.mouseEnabled)
    self.decreaseButton:SetMouseEnabled(self.mouseEnabled)
end
function ZO_Spinner:SetMouseEnabled(mouseEnabled)
    self.mouseEnabled = mouseEnabled
    self:UpdateButtons()
end
function ZO_Spinner:SetValue(value, forceSet)
    if value == nil then
        if self.unknownQuantityCharacter and self.value ~= nil then
            self.value = nil
            if self.display then
                self.display:SetText(self.unknownQuantityCharacter)
            end
            self:UpdateButtons()
            self:FireCallbacks("OnValueChanged", value)
            return true
        end
    else
        value = self.constrainRangeFunc(value, self:GetMin(), self:GetMax(), self.step)
        if self.validValuesFunction then
            value = self.validValuesFunction(value, 0)
        end
        if((value ~= self.value) or forceSet) then
            self.value = value
            self:UpdateDisplay()
            self:UpdateButtons()
            self:FireCallbacks("OnValueChanged", value)
            return true
        end
    end
    return false
end
function ZO_Spinner:UpdateDisplay()
    if self.display then
        local valueText
        if self.valueFormatFunction then
            valueText = self.valueFormatFunction(self.value)
        else
            valueText = self.value
        end
        self.display:SetText(valueText)
        if self.softMax and self.value > self.softMax then
            self.display:SetColor(self.errorColor:UnpackRGBA())
        else
            self.display:SetColor(self.normalColor:UnpackRGBA())
        end
    end
end
    self:UpdateDisplay()
end
function ZO_Spinner:ModifyValue(change)
    if self.value then
        local targetValue = self.value + change * self.step
        if self.validValuesFunction then
            targetValue = self.validValuesFunction(self.value, change * self.step)
        end
        if(self:SetValue(targetValue)) then
            if(change > 0) then
                PlaySound(self.spinnerUpSound)
            else
                PlaySound(self.spinnerDownSound)
            end
        end
    end
end
function ZO_Spinner:SetEnabled(enabled)
    self.enabled = enabled
    self:UpdateButtons()
end
function ZO_Spinner:SetButtonsHidden(hideButtons)
    self.hideButtons = hideButtons
    self:UpdateButtons()
end
function ZO_Spinner:SetSounds(upSound, downSound)
    self.spinnerUpSound = upSound
    self.spinnerDownSound = downSound
end