save window position and size

modules/core_widgets/core_widgets.otmod

@@ -7,6 +7,7 @@ Module
   onLoad: |
     require 'tooltip/tooltip'
     require 'messagebox/messagebox'
+    require 'uiwidget'
     require 'uibutton'
     require 'uilabel'
     require 'uicombobox'

modules/core_widgets/uipopupmenu.lua

@@ -45,7 +45,7 @@ function UIPopupMenu:onDestroy()
 end
 
 function UIPopupMenu:onMousePress(mousePos, mouseButton)
-  -- clicks outside self area destroys the self
+  -- clicks outside menu area destroys the menu
   if not self:containsPoint(mousePos) then
     self:destroy()
     return true
@@ -61,11 +61,10 @@ function UIPopupMenu:onKeyPress(keyCode, keyText, keyboardModifiers)
   return false
 end
 
-local function onRootGeometryUpdate()
   -- close all menus when the window is resized
+local function onRootGeometryUpdate()
   for i,menu in ipairs(displayedMenuList) do
     menu:destroy()
   end
 end
-
 connect(rootWidget, { onGeometryChange = onRootGeometryUpdate} )

modules/core_widgets/uiwidget.lua

@@ -0,0 +1,19 @@
+function UIWidget:setMargin(...)
+    local params = {...}
+    if #params == 1 then
+        self:setMarginTop(params[1])
+        self:setMarginRight(params[1])
+        self:setMarginBottom(params[1])
+        self:setMarginLeft(params[1])
+    elseif #params == 2 then
+        self:setMarginTop(params[1])
+        self:setMarginRight(params[2])
+        self:setMarginBottom(params[1])
+        self:setMarginLeft(params[2])
+    elseif #params == 4 then
+        self:setMarginTop(params[1])
+        self:setMarginRight(params[2])
+        self:setMarginBottom(params[3])
+        self:setMarginLeft(params[4])
+    end
+end