EbenenManager

EbenenManager is a software component designed to manage layers (Ebenen) within applications that compose visual content. It provides an abstraction for creating, organizing, and manipulating a stack of layers, along with per-layer properties, to support rendering, editing, and interaction workflows.

At its core, EbenenManager exposes objects such as Layer and LayerGroup and a LayerStack that preserves the z-order. Each Layer has an identifier, a human-readable name, visibility flag, edit lock, opacity value, and a blending mode or compositing operation. LayerGroup enables hierarchical organization, allowing users to collapse or expand groups and apply operations to all contained layers.

The manager supports operations including creating and deleting layers, renaming, reordering, toggling visibility, adjusting opacity, changing blend modes, and locking layers to prevent edits. It provides grouping, masking or clipping features where applicable, and supports per-layer metadata for attributes like color, labels, or annotations. Change events are emitted to notify listeners, enabling synchronized updates in editors and renderers. Undo/redo hooks are commonly exposed.

Architecture and interoperability: EbenenManager is designed as a modular component with a core layer stack, layer objects, and a rendering or editing backend interface. It exposes a stable API for manipulating layers, and can persist configurations to formats such as JSON or XML or integrate with project files. It supports bindings for multiple programming languages and can be integrated into diverse toolchains, from image editors to GIS software.

Applications and scope: It is used in graphics editors, map and geographic information systems, CAD/architecture tools, and UI composition environments where a structured, editable set of layered content is required.