The »rtl_mlistbox« command creates a »rtl_mlistbox« window.

»rtl_mlistbox« is a multi-column listbox. The internal used »listbox« class can be replaced –before creation– via the »-listtype« property.

To-Do: checklength --lock using it until a map event arrived, so that out-of-order customization is possible ; or seek a mechanism which applies the properties in their correct order.

Should work, through the attributes list.

Version 3.0: Multi-selection is possible, now. Including browse, extended, single. Not tested is »multiple«. This various selection modes are only possible by using the real (emulated) listbox interface, introduced in this version. The drag-and-drop feature remains available in single select mode, only. Otherwise it is disabled as a side-effect of setting »selectMode«.

-state -dragable -selectmode -takefocus

The rtl_mlistbox version 3.0 allows cascading designs. A rtl_mlistbox may be used inside of another rtl_mlistbox, in truth there is no limit to how many cascading rtl_mlistboxes are being used. In addition Drag-and-Drop is isolated from normal bindings. this makes it possible to support other »selecMode« operations. Many bindings have been revised, too. The rtl_mlistbox behaves now like any other listbox. In consequence the interface is almost identical to a Tk listbox.

- headingsanchor Modified, synchronizes anchor and justify. Needed for SVG code generation.

pathName selection pathName see pathName scan pathName index

Many new interface elements for listbox compliance: selection (replaces select), see, scan, index.

aquamlistbox

--more specific see for the triangle color usage, this is currently not yet correct. Not a part of the RTL, there is a »aquahead« inside the »Gestalt Items«, which turns the rtl_mlistbox header row into an AQUA compliant header, including gradient, select color, triangle back color, activate and deactivate.

Version 2.0: -fashion -headerFont -sortable -sortCommand -listtype -gridColor -menu -useColumnColors

Sort & Reorder. These two functions are the missing ones to complete the multi-list-box implementation. Sort –as sort always should be done– is done where the data is stored. The multi-listbox is just a representation of this data. Therefore the multi-listbox is not allowed to sort it's listbox contents on its own. A call back mechanism is provided to notify the sorting type as well as what column is to be sorted. Second thought about TypeOf: In essence any abitrary window type could substitute the listboxes. This means rtl_mlistbox is in effect also a so-called paned window. New properties:

headerFont: allow a separate font for the header row, required for OSX –the AQUA header font is application 10 bold.

Added selectforeground to complement selectbackground.

New Color Schema: The Header Color should be the inverse color of the list boxes -foreground/background. There should be a single line separating listboxes.

New properties: fashion & listtype (internal as: fashion & typeOf).

Fashion allows to switch between a positive and negative header schema. The negative header schema is described above. The two fashions are defined as 2D & 3D –3D because there is a raised border between the listboxes and the header section.

Listtype: Provides the ability to replace the internal used listbox control with something else. Most likely a virtual listbox –lets call it vistbox.

          pathName option ?arg arg ...?
          

Gestalt Items