-- returns true, if slider edit mode (selected state) should be toggled (on controller release)
function freeEditControllerInputFunction( keyCode, pressed, pressedPrev, param )
    local result = (keyCode == KeyCodes.KEY_PRESS and pressedPrev and not pressed)
    return result
end

-- returns true, if slider should change its value (controller rotate, and active edit mode)
function freeEditControllerInputChangeValueFunction( keyCode, pressed, pressedPrev, param, editMode )
    
    if not editMode then
        return false, false
    end
    
    local increase = (keyCode == KeyCodes.KEY_RIGHT)
    local decrease = (keyCode == KeyCodes.KEY_LEFT)
    
    return increase, decrease

end

-- returns the correct color for specific input selections / works as a switch
function editableTextColorSwitch( editmode, focused, editColor, focusedColor, unfocusedColor)
    
    if (editmode and focused) then
        return editColor
    elseif (not editmode and focused) then
        return focusedColor
    else
        return unfocusedColor
    end
end

-- checks by the given index for this element and the maximum that should be available it this element is really visible
function editableTextVisibility( elementIndex, maxIndex )
    return maxIndex ~= nil and elementIndex < maxIndex
end