143 lines
3.5 KiB
Lua
143 lines
3.5 KiB
Lua
-- @docclass
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UIComboBox = extends(UIWidget)
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function UIComboBox.create()
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local combobox = UIComboBox.internalCreate()
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combobox:setFocusable(false)
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combobox.options = {}
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combobox.currentIndex = -1
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combobox.mouseScroll = true
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return combobox
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end
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function UIComboBox:clearOptions()
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self.options = {}
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self.currentIndex = -1
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self:clearText()
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end
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function UIComboBox:getOption(text)
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if not self.options then return nil end
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for i,v in ipairs(self.options) do
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if v.text == text then
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return nil
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end
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end
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end
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function UIComboBox:setCurrentOption(text)
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if not self.options then return end
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for i,v in ipairs(self.options) do
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if v.text == text and self.currentIndex ~= i then
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self.currentIndex = i
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self:setText(text)
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signalcall(self.onOptionChange, self, text, v.data)
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return
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end
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end
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end
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function UIComboBox:setCurrentOptionByData(data)
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if not self.options then return end
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for i,v in ipairs(self.options) do
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if v.data == data and self.currentIndex ~= i then
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self.currentIndex = i
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self:setText(v.text)
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signalcall(self.onOptionChange, self, v.text, v.data)
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return
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end
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end
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end
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function UIComboBox:setCurrentIndex(index)
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if index >= 1 and index <= #self.options then
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local v = self.options[index]
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self.currentIndex = index
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self:setText(v.text)
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signalcall(self.onOptionChange, self, v.text, v.data)
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end
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end
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function UIComboBox:getCurrentOption()
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if table.haskey(self.options, self.currentIndex) then
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return self.options[self.currentIndex]
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end
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end
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function UIComboBox:addOption(text, data)
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table.insert(self.options, { text = text, data = data })
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local index = #self.options
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if index == 1 then self:setCurrentOption(text) end
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return index
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end
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function UIComboBox:removeOption(text)
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for i,v in ipairs(self.options) do
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if v.text == text then
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table.remove(self.options, i)
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if self.currentIndex == i then
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self:setCurrentIndex(1)
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elseif self.currentIndex > i then
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self.currentIndex = self.currentIndex - 1
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end
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return
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end
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end
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end
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function UIComboBox:onMousePress(mousePos, mouseButton)
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local menu = g_ui.createWidget(self:getStyleName() .. 'PopupMenu')
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menu:setId(self:getId() .. 'PopupMenu')
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for i,v in ipairs(self.options) do
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menu:addOption(v.text, function() self:setCurrentOption(v.text) end)
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end
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menu:setWidth(self:getWidth())
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menu:display({ x = self:getX(), y = self:getY() + self:getHeight() })
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connect(menu, { onDestroy = function() self:setOn(false) end })
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self:setOn(true)
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return true
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end
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function UIComboBox:onMouseWheel(mousePos, direction)
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if not self.mouseScroll then
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return false
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end
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if direction == MouseWheelUp and self.currentIndex > 1 then
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self:setCurrentIndex(self.currentIndex - 1)
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elseif direction == MouseWheelDown and self.currentIndex < #self.options then
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self:setCurrentIndex(self.currentIndex + 1)
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end
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return true
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end
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function UIComboBox:onStyleApply(styleName, styleNode)
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if styleNode.options then
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for k,option in pairs(styleNode.options) do
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self:addOption(option)
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end
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end
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if styleNode.data then
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for k,data in pairs(styleNode.data) do
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local option = self.options[k]
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if option then
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option.data = data
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end
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end
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end
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for name,value in pairs(styleNode) do
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if name == 'mouse-scroll' then
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self.mouseScroll = value
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end
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end
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end
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function UIComboBox:setMouseScroll(scroll)
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self.mouseScroll = scroll
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end
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function UIComboBox:canMouseScroll()
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return self.mouseScroll
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end
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