32 lines
1.5 KiB
Markdown
32 lines
1.5 KiB
Markdown
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---
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source_files:
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- Common/DTS.Common/Events/RegionOfInterest/RegionOfInterestChangedEvent.cs
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generated_at: "2026-04-17T16:10:34.392992+00:00"
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model: "zai-org/GLM-5-FP8"
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schema_version: 1
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sha256: "04ca50cc4f4be546"
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---
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# RegionOfInterest
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### Purpose
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This module defines a typed event for broadcasting changes to a Region of Interest (ROI) within the application. It leverages the Prism event aggregation system to enable loosely-coupled communication between components when ROI configuration changes, allowing subscribers to react to new ROI definitions without direct coupling to the publisher.
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### Public Interface
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**`RegionOfInterestChangedEvent`**
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- Signature: `public class RegionOfInterestChangedEvent : PubSubEvent<IRegionOfInterest>`
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- Description: A Prism `PubSubEvent` that carries an `IRegionOfInterest` payload. Publishers invoke this event with a new ROI instance; subscribers receive the `IRegionOfInterest` object when the event is published.
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### Invariants
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- The event payload must implement `IRegionOfInterest` (defined in `DTS.Common.Interface.RegionOfInterest`).
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- As a `PubSubEvent<T>`, the event follows Prism's thread-safe publication/subscription semantics.
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### Dependencies
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- **Depends on**: `Prism.Events` (for `PubSubEvent<T>` base class), `DTS.Common.Interface.RegionOfInterest` (for `IRegionOfInterest` interface).
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- **Depended on by**: Not determinable from source alone; consumers would subscribe to or publish this event via Prism's `IEventAggregator`.
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### Gotchas
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None identified from source alone.
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---
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