Oberon Object Tiler Link Upd May 2026

MODULE Tiler; TYPE Object* = POINTER TO ObjectDesc; ObjectDesc = RECORD next*: Object; (* This is the "Link" *) x, y, w, h: INTEGER; draw: PROCEDURE (obj: Object; VAR frame: Frame); END; VAR root*: Object; (* Head of the Tiler Link list *)

A user could select a graphic object (say, a button or a drawing) and execute: oberon object tiler link

In the annals of computing history, certain projects stand as monuments to what might have been. Oberon is one such gem. Developed by Niklaus Wirth and his team at ETH Zurich in the late 1980s, the Oberon operating system was a visionary exercise in minimalism, object-orientation, and textual command abstraction. Yet, within this austere environment exists a curious artifact: the Object Tiler Link . MODULE Tiler; TYPE Object* = POINTER TO ObjectDesc;

For modern developers searching for "oberon object tiler link" , the results are often cryptic, leading to dead academic links or fragmentary source code. This article aims to bridge that gap, reconstructing the purpose, architecture, and legacy of the Oberon Object Tiler Link—a component that redefined how Oberon handled graphical object assembly. Before dissecting the "Object Tiler Link," we must understand its host. Oberon is both a programming language (a cleaner, safer descendant of Pascal and Modula-2) and an operating system. Its most startling feature was the "text user interface"—everything, including directories and tool buttons, was clickable text. Yet, within this austere environment exists a curious

Tiler.Link ^ The caret ( ^ ) represented the current selection. This command would insert the selected object into the global tiler chain, making it appear on screen. Conversely, Tiler.Unlink ^ removed it.

Graphics in classic Oberon were not bitmap-centric. Instead, Oberon relied on a display model built from (lines, rectangles, text frames, and raster images). These objects were lightweight and managed by a subsystem known as the Object Tiler . The Role of the Tiler in Oberon’s Graphics Engine In traditional bitmap graphics, a "tiler" breaks a large image into smaller tiles for memory management. In Oberon, however, the concept is higher-level.