72 lines
1.9 KiB
Lua
72 lines
1.9 KiB
Lua
local Event = require("gfx.event")
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local Element = require("gfx.element")
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local Prop = require("gfx.prop")
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local Orientation = require("gfx.prop.orientation")
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local Children = require("gfx.prop.children")
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local List = Prop.attach(Prop.attach(Element:new(), Orientation), Children)
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function List:adjustPositions(from)
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from = from or 1
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local vertical = self:isVertical()
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local newDims = 1
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local getDim = vertical and function(e) return e:getHeight() end or function(e) return e:getWidth() end
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for _,element in self:_iterateChildren{ to = from } do
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newDims = newDims + getDim(element)
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end
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local setDim = vertical and function(e, dim) e:setY(dim) end or function(e, dim) e:setX(dim) end
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for _, element in self:_iterateChildren{ from = from } do
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setDim(element, newDims)
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newDims = newDims + getDim(element)
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end
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end
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function List:insertChild(child, atIndex)
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self:_addChild(child, atIndex)
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end
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function List:removeChild(child)
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return self:_removeChild(child)
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end
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local function maxOrSum(shouldSum, iter, getValue)
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if shouldSum then
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local sum = 0
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for _,v in iter() do
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sum = sum + getValue(v)
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end
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return sum
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else
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local max = 0
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for _,v in iter() do
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max = math.max(max, getValue(v))
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end
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return max
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end
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end
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function List:getHeight()
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local lSelf = self
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return maxOrSum(self:isVertical(), function() return lSelf:_iterateChildren() end, function(e) return e:getHeight() end)
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end
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function List:getWidth()
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local lSelf = self
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return maxOrSum(self:isHorizontal(), function() return lSelf:_iterateChildren() end, function(e) return e:getWidth() end)
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end
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function List:_reload()
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Element._reload(self)
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-- Reload child windows
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local win = self:_getWindow()
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for _,child in self:_iterateChildren() do
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if child:_getWindow() ~= win then
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child:setParent(win)
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end
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end
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self:adjustPositions()
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end
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return List |