floscilloscope 1.1.3

An oscilloscope widget featuring dynamic chart rendering, threshold manipulation, zoom/pan, customizable axes, multi-data series, and interactive threshold sliders.

0.0.1

• Initial release.

1.0.0

• Updated README file to describe the package further.
• Added support for multiple datasets.
• Added a threshold slider.
• Added support for the fl_chart and syncfusion_flutter_charts.

1.0.1

• Updated the dependencies.
• Added some more comments.

1.0.2

• Changed the description of the package.
• Added the changelog text for more points.

1.0.3

• Updated the dependencies.

1.0.4

• The alternative oscilloscope does not use FlSpot from fl_chart anymore, but a custom OscilloscopePoint class.
• Added test cases.
• Added more comments and documentation.

1.0.5

• Fixed some formatting issues in the code.

1.0.6

• Bug fixes

1.1.0

• Added RTL layout support by forcing LTR directionality on chart and slider rows in both SimpleOscilloscope and AlternativeSimpleOscilloscope.

1.1.1

• Fixed threshold dialog text field displaying negative values incorrectly in RTL locales.

1.1.3

• Threshold is now parent-controlled when no onThresholdValueChanged callback is supplied. In SimpleOscilloscope and AlternativeSimpleOscilloscope, finishing a threshold slider drag or submitting the threshold dialog without a callback now reverts the internal threshold to the threshold prop instead of silently committing the dragged value and desyncing from the source of truth. Provide onThresholdValueChanged to make threshold changes persistent.
• Exposed SimpleOscilloscopeState publicly (matching AlternativeSimpleOscilloscopeState) with a @visibleForTesting currentThresholdValue getter/setter so the threshold state can be asserted in tests.

1.1.2

• Fixed stale trailing points remaining on the AlternativeSimpleOscilloscope chart when a series is replaced with a shorter list. Data updates are now pushed through ChartSeriesController.updateDataSource, which also avoids a full SfCartesianChart rebuild on data-only changes.
• Added AlternativeSimpleOscilloscopeState.clearData() to immediately clear all rendered data, and exposed the state class publicly so it can be reached through a GlobalKey.
• Upgraded the Syncfusion dependencies (syncfusion_flutter_charts, syncfusion_flutter_core, syncfusion_flutter_sliders) from ^33.2.3 to ^34.1.33 in both the package and the example app.
• Fixed stale data persisting on AlternativeSimpleOscilloscope after the number of series changes. Surviving series now get a generation-keyed rebuild so their ChartSeriesController is recaptured (otherwise updateDataSource was silently skipped and stale points remained).
• Fixed a threshold drag being reverted on every data-tick rebuild in both SimpleOscilloscope and AlternativeSimpleOscilloscope. Threshold change detection now compares the previous vs new widget instead of state vs widget.
• Wrapped the AlternativeSimpleOscilloscope chart in a RepaintBoundary for streaming paint isolation.
• Added a streaming (timer-driven) example that exercises the real-time update path of both oscilloscopes.
• Cleanup: removed a dead identical() guard, switched to plain GlobalKey types, re-measure slider padding when axis config changes, reuse an index buffer for data updates, and use Object.hash for OscilloscopePoint.hashCode.
• BREAKING (minor): made calculateZoomedMin/calculateZoomedMax private (they were undocumented internal helpers).