147 lines
3.1 KiB
Lua
147 lines
3.1 KiB
Lua
-- @docclass
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UISpinBox = extends(UITextEdit)
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function UISpinBox.create()
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local spinbox = UISpinBox.internalCreate()
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spinbox:setFocusable(false)
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spinbox:setValidCharacters('0123456789')
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spinbox.displayButtons = true
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spinbox.minimum = 0
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spinbox.maximum = 0
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spinbox.value = 0
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spinbox.step = 1
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spinbox.firstchange = true
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spinbox:setText("0")
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return spinbox
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end
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function UISpinBox:onMouseWheel(mousePos, direction)
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if direction == MouseWheelUp then
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self:up()
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elseif direction == MouseWheelDown then
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self:down()
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end
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return true
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end
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function UISpinBox:onKeyPress()
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if self.firstchange then
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self.firstchange = false
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self:setText('')
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end
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return false
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end
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function UISpinBox:onTextChange(text, oldText)
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if text:len() == 0 then
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self:setValue(self.minimum)
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return
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end
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local number = tonumber(text)
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if not number then
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self:setText(number)
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return
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else
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if number < self.minimum then
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self:setText(self.minimum)
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return
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elseif number > self.maximum then
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self:setText(self.maximum)
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return
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end
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end
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self:setValue(number)
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end
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function UISpinBox:onValueChange(value)
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-- nothing todo
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end
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function UISpinBox:onStyleApply(styleName, styleNode)
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for name, value in pairs(styleNode) do
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if name == 'maximum' then
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addEvent(function() self:setMaximum(value) end)
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elseif name == 'minimum' then
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addEvent(function() self:setMinimum(value) end)
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elseif name == 'buttons' then
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addEvent(function()
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if value then
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self:showButtons()
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else
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self:hideButtons()
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end
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end)
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end
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end
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end
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function UISpinBox:showButtons()
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self:getChildById('up'):show()
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self:getChildById('down'):show()
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self.displayButtons = true
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end
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function UISpinBox:hideButtons()
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self:getChildById('up'):hide()
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self:getChildById('down'):hide()
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self.displayButtons = false
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end
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function UISpinBox:up()
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self:setValue(self.value + self.step)
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end
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function UISpinBox:down()
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self:setValue(self.value - self.step)
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end
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function UISpinBox:setValue(value)
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value = value or 0
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value = math.max(math.min(self.maximum, value), self.minimum)
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if value == self.value then return end
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if self:getText():len() > 0 then
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self:setText(value)
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end
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self.value = value
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local upButton = self:getChildById('up')
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local downButton = self:getChildById('down')
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if upButton then
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upButton:setEnabled(self.maximum ~= self.minimum and self.value ~= self.maximum)
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end
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if downButton then
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downButton:setEnabled(self.maximum ~= self.minimum and self.value ~= self.minimum)
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end
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signalcall(self.onValueChange, self, value)
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end
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function UISpinBox:setMinimum(minimum)
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minimum = minimum or -9223372036854775808
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self.minimum = minimum
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if self.minimum > self.maximum then
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self.maximum = self.minimum
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end
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if self.value < minimum then
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self:setValue(minimum)
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end
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end
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function UISpinBox:setMaximum(maximum)
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maximum = maximum or 9223372036854775807
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self.maximum = maximum
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if self.value > maximum then
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self:setValue(maximum)
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end
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end
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function UISpinBox:setStep(step)
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self.step = step or 1
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end
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function UISpinBox:getValue()
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return self.value
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end
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