120 lines
2.9 KiB
Lua
120 lines
2.9 KiB
Lua
-- Path of Building
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--
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-- Class: Control
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-- UI control base class
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--
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local t_insert = table.insert
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local m_floor = math.floor
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local anchorPos = {
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["TOPLEFT"] = { 0 , 0 },
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["TOP"] = { 0.5, 0 },
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["TOPRIGHT"] = { 1 , 0 },
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["RIGHT"] = { 1 , 0.5 },
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["BOTTOMRIGHT"] = { 1 , 1 },
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["BOTTOM"] = { 0.5, 1 },
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["BOTTOMLEFT"] = { 0 , 1 },
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["LEFT"] = { 0 , 0.5 },
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["CENTER"] = { 0.5, 0.5 },
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}
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local ControlClass = common.NewClass("Control", function(self, anchor, x, y, width, height)
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self.x = x
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self.y = y
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self.width = width
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self.height = height
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self.shown = true
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self.enabled = true
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self.anchor = { }
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if anchor then
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self:SetAnchor(anchor[1], anchor[2], anchor[3])
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end
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end)
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function ControlClass:GetProperty(name)
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if type(self[name]) == "function" then
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return self[name](self)
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else
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return self[name]
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end
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end
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function ControlClass:SetAnchor(point, other, otherPoint, x, y)
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self.anchor.point = point
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self.anchor.other = other
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self.anchor.otherPoint = otherPoint
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if x and y then
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self.x = x
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self.y = y
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end
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end
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function ControlClass:GetPos()
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local x = self:GetProperty("x")
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local y = self:GetProperty("y")
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if self.anchor.other then
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local otherX, otherY = self.anchor.other:GetPos()
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local otherW, otherH = self.anchor.other:GetSize()
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local width, height = self:GetSize()
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local otherPos = anchorPos[self.anchor.otherPoint]
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assert(otherPos, "invalid anchor position '"..tostring(self.anchor.otherPoint).."'")
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local pos = anchorPos[self.anchor.point]
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assert(pos, "invalid anchor position '"..tostring(self.anchor.point).."'")
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x = m_floor(otherX + otherW * otherPos[1] + x - width * pos[1])
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y = m_floor(otherY + otherH * otherPos[2] + y - height * pos[2])
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end
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return x, y
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end
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function ControlClass:GetSize()
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return self:GetProperty("width"), self:GetProperty("height")
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end
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function ControlClass:IsShown()
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return (not self.anchor.other or self.anchor.other:IsShown()) and self:GetProperty("shown")
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end
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function ControlClass:IsEnabled()
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return self:GetProperty("enabled")
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end
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function ControlClass:SetFocus(focus)
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if focus ~= self.hasFocus then
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if focus and self.OnFocusGained then
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self:OnFocusGained()
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elseif not focus and self.OnFocusLost then
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self:OnFocusLost()
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end
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self.hasFocus = focus
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end
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end
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function ControlClass:AddToTabGroup(master)
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if master.tabOrder then
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t_insert(master.tabOrder, self)
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else
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master.tabOrder = { master, self }
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end
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self.tabOrder = master.tabOrder
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end
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function ControlClass:TabAdvance(step)
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if self.tabOrder then
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local index = isValueInArray(self.tabOrder, self)
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if index then
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while true do
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index = index + step
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if index > #self.tabOrder then
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index = 1
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elseif index < 1 then
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index = #self.tabOrder
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end
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if self.tabOrder[index] == self or (self.tabOrder[index].OnKeyDown and self.tabOrder[index]:IsShown()) then
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return self.tabOrder[index]
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end
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end
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end
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end
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return self
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end |