some window moving

modules/core_widgets/uiwindow.lua

@@ -3,6 +3,7 @@ UIWindow = extends(UIWidget)
 function UIWindow.create()
   local window = UIWindow.internalCreate()
   window:setTextAlign(AlignTopCenter)
+  window:setDragable(true)
   return window
 end
 
@@ -20,6 +21,17 @@ function UIWindow:onMousePress(mousePos, mouseButton)
 
 end
 
-function UIWindow:onGeometryChange(oldRect, newRect)
-
+function UIWindow:onDragEnter(mousePos)
+  self:breakAnchors()
+  self.movingReference = { x = mousePos.x - self:getX(), y = mousePos.y - self:getY() }
+end
+
+function UIWindow:onDragLeave(droppedWidget, mousePos)
+  -- TODO: auto detect and reconnect anchors
+end
+
+function UIWindow:onDragMove(mousePos, mouseMoved)
+  local pos = { x = mousePos.x - self.movingReference.x, y = mousePos.y - self.movingReference.y }
+  self:setPosition(pos)
+  self:bindRectToParent()
 end