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Formatting and Rendering

HexViewControl renders one line at a time based on ILineReader and IHexFormatter.

Formatter Responsibilities

HexFormatter controls:

• line width
• line count
• offset padding
• byte base: 2, 8, 10, or 16
• group separators
• ASCII encoding and control glyph handling

Control Responsibilities

HexViewControl controls:

• caret movement
• pointer hit testing
• selection rendering
• byte editing gestures
• edited-byte highlighting
• diff highlighting through DifferencesProvider
• annotation highlighting through Annotations

Scroll Model

The control implements ILogicalScrollable, which lets it cooperate with ScrollViewer while keeping rendering virtualized to visible lines.

Events and Hooks

Important control hooks:

• CaretMoved
• SelectionChanged
• AnnotationMoved
• ByteWriteAction
• EditedOffsetsProvider
• DifferencesProvider

These are the main extension points used by the sample application.