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Overview

Overview

This repository exposes two packages with different responsibilities:

Package Use it when you need
PanAndZoom An interactive viewport control with zoom, pan, history, bounds, resize, rotation, and state persistence support
HeadlessTestingFramework Automated Avalonia UI tests with touch, wheel, keyboard, tree inspection, screenshots, recordings, and Appium-like interaction APIs

Choose The Right Starting Point

  • Start with Quickstart: ZoomBorder if you are building an interactive canvas, editor, or viewer.
  • Start with Quickstart: Headless Testing if you already have Avalonia controls and need deterministic test coverage.
  • Use both when you want to ship zoom-heavy interaction and verify it with headless gesture tests in CI.

What ZoomBorder Adds

Avalonia.Controls.PanAndZoom.ZoomBorder wraps a single child and manages a transform matrix over that content. Common capabilities include:

  • mouse-wheel zoom and pointer-based pan
  • pinch and scroll gestures
  • bounds policies such as KeepContentVisible and FillViewport
  • view history, saved views, and import/export of serialized state
  • keyboard navigation and ICommand bindings for MVVM surfaces

What HeadlessTestingFramework Adds

The testing package provides several layers:

  • low-level input simulators: Avalonia.HeadlessTestingFramework.TouchInputSimulator, Avalonia.HeadlessTestingFramework.KeyboardInputSimulator, Avalonia.HeadlessTestingFramework.MouseInputSimulator
  • high-level gesture and helper APIs: Avalonia.HeadlessTestingFramework.GestureSimulator, Avalonia.HeadlessTestingFramework.MultiTouchTestHelperFactory
  • inspection and assertion helpers: Avalonia.HeadlessTestingFramework.ControlFinder, Avalonia.HeadlessTestingFramework.TreeXPath, Avalonia.HeadlessTestingFramework.TreeValidator
  • automation and recording layers: Avalonia.HeadlessTestingFramework.Appium.AvaloniaDriver, Avalonia.HeadlessTestingFramework.Recording.HeadlessScreenRecorder

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