Tabbed Container. Sets the active tab's [code]visible[/code] property to the value [code]true[/code]. Sets all other children's to [code]false[/code]. Ignores non-[Control] children. Individual tabs are always visible unless you use [method set_tab_disabled] and [method set_tab_title] to hide it. To hide only a tab's content, nest the content inside a child [Control], so it receives the [TabContainer]'s visibility setting instead. Returns the child [Control] node located at the active tab index. Returns the [Popup] node instance if one has been set already with [method set_popup]. Returns the previously active tab index. Returns the currently visible tab's [Control] node. Returns the number of tabs. Returns [code]true[/code] if the tab at index [code]tab_idx[/code] is disabled. Returns the [Texture] for the tab at index [code]tab_idx[/code] or null if the tab has no [Texture]. Returns the title of the tab at index [code]tab_idx[/code]. Tab titles default to the name of the indexed child node, but this can be overridden with [method set_tab_title]. Returns the [TabContainer] rearrange group id. If set on a [Popup] node instance, a popup menu icon appears in the top-right corner of the [TabContainer]. Clicking it will expand the [Popup] node. If [code]disabled[/code] is false, hides the tab at index [code]tab_idx[/code]. Note that its title text will remain, unless also removed with [method set_tab_title]. Sets an icon for the tab at index [code]tab_idx[/code]. Sets a title for the tab at index [code]tab_idx[/code]. Tab titles default to the name of the indexed child node, but this can be overridden with [method set_tab_title]. Defines rearrange group id, choose for each [TabContainer] the same value to enable tab drag between [TabContainer]. Enable drag with [code]set_drag_to_rearrange_enabled(true)[/code]. The current tab index. When set, this index's [Control] node's [code]visible[/code] property is set to [code]true[/code] and all others are set to [code]false[/code]. If [code]true[/code], tabs can be rearranged with mouse drag. The alignment of all tabs in the tab container. See the [code]ALIGN_*[/code] constants for details. If [code]true[/code], tabs are visible. If [code]false[/code], tabs' content and titles are hidden. Default value: [code]true[/code]. Emitted when the [TabContainer]'s [Popup] button is clicked. See [method set_popup] for details. Emitted when switching to another tab. Emitted when a tab is selected, even if it is the current tab. Align the tabs to the left. Align the tabs to the center. Align the tabs to the right.