initial commit

luigi/widget/sash.lua

@@ -0,0 +1,35 @@
+local Widget = require((...):gsub('%.[^.]*$', ''))
+
+local Sash = Widget:extend()
+
+function Sash:constructor(layout, data)
+    Widget.constructor(self, layout, data)
+
+    self:onPressDrag(function(event)
+        local axis = self.parent.flow
+        if axis == 'x' then
+            dimension = 'width'
+        else
+            axis = 'y'
+            dimension = 'height'
+        end
+        local prevSibling = self:getPrevious()
+        local nextSibling = self:getNext()
+        local prevSize = prevSibling and prevSibling[dimension]
+        local nextSize = nextSibling and nextSibling[dimension]
+        if prevSize then
+            prevSibling:setDimension(dimension,
+                    event[axis] - prevSibling:calculatePosition(axis))
+        end
+        if nextSize then
+            nextSibling:setDimension(dimension,
+                    nextSibling:calculatePosition(axis) +
+                    nextSibling[dimension] - event[axis])
+        end
+
+        layout:update(true)
+    end)
+
+end
+
+return Sash