Update Menubar.md
This commit is contained in:
Robert Jelic
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WIP
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Menubars are like lists but instead of being vertical, they are horizontal. Imagine you are creating a Operating System and you would like to add a taskbar, menubars would be exactly what you need, because they are also scrollable, which means they have endless entries.
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If you want to access values inside items this is how the table for single items is made (just a example):
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```lua
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item = {
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text="1. Entry",
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bgCol=colors.black,
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fgCol=colors.white
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args = {}
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}
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```
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Here are all possible functions available for menubars. Remember menubar inherits from [Object](objects/Object.md)
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## addItem
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Adds a item into the menubar
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#### Parameters:
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1. `string` The entry name
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2. `number|color` unique default background color
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3. `number|color` unique default text color
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4. `any` any value - you could access this later in a :onChange() event (you need to use :getValue()).
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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```
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## removeItem
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Removes a item from the menubar
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#### Parameters:
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1. `number` The index which should get removed
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and removes the second one.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:removeItem(2)
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```
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## editItem
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Edits item from the menubar
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#### Parameters:
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1. `number` The index which should be edited
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2. `string` The new item name
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3. `number` the new item background color
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4. `number` The new item text color
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5. `any` New additional information
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and edits the second one.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:editItem(2, "Still 2. Entry", colors.red)
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```
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## getItem
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Returns a item by index
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#### Parameters:
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1. `number` The index which should be returned
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#### Returns:
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1. `table` The item table example: {text="1. Entry", bgCol=colors.black, fgCol=colors.white}
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#### Usage:
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* Creates a default menubar with 3 entries and edits the second one.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:editItem(2, "Still 2. Entry", colors.red)
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```
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## getItemCount
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Returns the current item count
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#### Returns:
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1. `number` The item list count
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#### Usage:
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* Creates a default menubar with 3 entries and prints the current item count.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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basalt.debug(aMenubar:getItemCount())
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```
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## getAll
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Returns all items as table
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#### Returns:
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1. `table` All items
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#### Usage:
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* Creates a default menubar with 3 entries and prints a table.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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basalt.debug(aMenubar:getAll())
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```
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## setSpace
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Sets the space between entries
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#### Parameters:
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1. `number` The space between each entry
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and changes the space to 3.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:setSpace(3)
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```
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## setScrollable
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Makes the menubar scrollable. The menubar will be scrollable as soon as the menubar is to small for all the entries.
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#### Parameters:
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1. `boolean` if this menubar should be scrollable or not
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and makes it scrollable.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:setScrollable(true)
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```
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## selectItem
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selects a item in the list (same as a player would click on a item)
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#### Parameters:
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1. `number` The index which should get selected
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and selects the second entry.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:selectItem(2)
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```
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## clear
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Removes all items.
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 3 entries and removes them immediatley. Which makes no sense.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:clear()
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```
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## getItemIndex
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returns the item index of the currently selected item
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#### Returns:
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1. `number` The current index
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#### Usage:
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* Creates a default menubar with 3 entries selects the second entry and prints the currently selected index.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry",colors.yellow)
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aMenubar:addItem("3. Entry",colors.yellow,colors.green)
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aMenubar:selectItem(2)
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basalt.debug(aMenubar:getItemIndex())
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```
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## setSelectedItem
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Sets the background and the foreground of the item which is currently selected
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#### Parameters:
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1. `number|color` The background color which should be used
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2. `number|color` The text color which should be used
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 4 entries and sets the selection background color to green.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry")
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aMenubar:addItem("3. Entry")
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aMenubar:addItem("4. Entry")
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aMenubar:setSelectedItem(colors.green)
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```
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## setPositionOffset
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Sets the offset of the menubar (the same as you would scroll) - default is 0
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#### Parameters:
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1. `number` The offset value
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#### Returns:
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1. `object` The object in use
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#### Usage:
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* Creates a default menubar with 6 entries and sets the offset to 3.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry")
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aMenubar:addItem("3. Entry")
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aMenubar:addItem("4. Entry")
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aMenubar:addItem("5. Entry")
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aMenubar:addItem("6. Entry")
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aMenubar:setPositionOffset(3)
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```
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## getPositionOffset
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returns the current offset
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#### Returns:
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1. `number` Current offset
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#### Usage:
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* Creates a default menubar with 6 entries and sets the offset to 3.
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```lua
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local mainFrame = basalt.createFrame("myFirstFrame"):show()
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local aMenubar = mainFrame:addMenubar("myFirstMenubar"):show()
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aMenubar:addItem("1. Entry")
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aMenubar:addItem("2. Entry")
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aMenubar:addItem("3. Entry")
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aMenubar:addItem("4. Entry")
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aMenubar:addItem("5. Entry")
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aMenubar:addItem("6. Entry")
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aMenubar:setPositionOffset(3)
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basalt.debug(aMenubar:getPositionOffset())
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```
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