83 lines
4.5 KiB
Markdown
83 lines
4.5 KiB
Markdown
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---
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source_files:
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/RefreshTestRequestEvent.cs
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/ShowT0CursorEvent.cs
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/TestModificationChangedEvent.cs
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/SetUseZeroForUnfilteredEvent.cs
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/TestModificationEvent.cs
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- Common/DTS.Common/Events/DTS.Viewer/TestModification/ShiftT0Event.cs
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generated_at: "2026-04-17T16:03:15.426783+00:00"
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model: "zai-org/GLM-5-FP8"
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schema_version: 1
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sha256: "f69e333ecbb396d6"
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---
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# TestModification
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### Purpose
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This module defines a set of Prism events for coordinating test modification operations within the DTS Viewer system. It provides a loosely-coupled messaging mechanism for components to communicate changes to test data, T0 cursor state, and filtering behavior without direct references. All events inherit from `CompositePresentationEvent<T>` from the legacy Microsoft.Practices.Prism library.
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### Public Interface
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**RefreshTestRequestEvent**
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- Signature: `public class RefreshTestRequestEvent : CompositePresentationEvent<string>`
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- Payload: `string` (test ID)
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- Behavior: Published to request a refresh of a specific test identified by its ID.
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**ShowT0CursorEvent**
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- Signature: `public class ShowT0CursorEvent : CompositePresentationEvent<bool>`
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- Payload: `bool` (true to show, false to hide)
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- Behavior: Controls visibility of the T0 cursor in the viewer.
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**TestModificationChangedEvent**
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- Signature: `public class TestModificationChangedEvent : CompositePresentationEvent<ITestModificationModel>`
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- Payload: `ITestModificationModel`
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- Behavior: Notifies subscribers when the data folder or test modification model has changed.
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**SetUseZeroForUnfilteredEvent**
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- Signature: `public class SetUseZeroForUnfilteredEvent : CompositePresentationEvent<bool>`
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- Payload: `bool`
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- Behavior: Controls whether 0 or P is used in the isocode filter field when modifying an isocode from a filter.
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**TestModificationEvent**
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- Signature: `public class TestModificationEvent : CompositePresentationEvent<TestModificationArgs>`
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- Payload: `TestModificationArgs`
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- Behavior: Published whenever a test is modified by the viewer. Used by DataPro to regenerate an ROI when an event is modified.
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**TestModificationArgs**
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- Properties:
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- `string DataSetDirectory { get; private set; }` - Path to the DTS file
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- `string TestId { get; private set; }` - Identifier of the modified test
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- Constructor: `TestModificationArgs(string dtsFilePath, string testId)`
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**ShiftT0Event**
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- Signature: `public class ShiftT0Event : CompositePresentationEvent<ShiftT0EventArguments>`
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- Payload: `ShiftT0EventArguments`
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- Behavior: Published to shift the T0 marker position.
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**ShiftT0EventArguments**
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- Properties:
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- `double T0Time { get; }` - The T0 time value
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- `bool IsInitialization { get; }` - Whether this shift is part of initialization
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- `int T0Steps { get; }` - Steps/samples from T0 to shift
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- `bool IsKeyPress { get; }` - Whether shift was caused by arrow key press
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- Constructors:
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- `ShiftT0EventArguments(double t0, bool isInitialization)` - Sets T0Time, defaults T0Steps=0, IsKeyPress=false
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- `ShiftT0EventArguments(int steps, bool isInitialization, bool isKeyPress)` - Sets T0Steps, defaults T0Time=0D
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### Invariants
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- `TestModificationArgs.DataSetDirectory` and `TestId` are set only at construction and cannot be modified.
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- `ShiftT0EventArguments` properties are immutable after construction.
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- When using the time-based constructor for `ShiftT0EventArguments`, `T0Steps` is always 0 and `IsKeyPress` is always false.
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- When using the steps-based constructor for `ShiftT0EventArguments`, `T0Time` is always 0D.
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### Dependencies
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- **Depends on**: `Microsoft.Practices.Prism.Events` (legacy Prism event aggregation), `DTS.Common.Interface` (for `ITestModificationModel`)
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- **Depended on by**: Unclear from source alone; likely consumed by viewer components, DataPro, and any module that modifies test data.
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### Gotchas
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- The XML comment for `TestModificationChangedEvent` states "The Data Folder changed event" which appears inconsistent with the class name and payload type (`ITestModificationModel`).
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- Several files use `// ReSharper disable CheckNamespace` suggesting namespace inconsistencies that were suppressed rather than fixed.
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- The `ShiftT0EventArguments` class has two mutually exclusive constructors; the time-based and steps-based approaches cannot be combined in a single instance.
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---
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