What's new for Qt in 100.3.0

[EricBader]

It's Update 3 release time! On top of the many exciting new features that are supported across the Runtime SDKs (web scenes, 3D distance measurement analysis, identifying and selecting web scene features, new WMS capibilities, etc), the Qt team has been hard at work adding some new features unique to this SDK for 100.3.

Here are some of the highlights...

Runtime API

• Transactional edit support. This allows the developer to commit or rollback a set of edits as one transaction. Other APIs introduced this at Update 2, and Qt now supports this feature with Update 3.
• Pagination of query results. This allows developers to set a result offset in the QueryParameters so that results can easily be paginated. Other APIs introduced this at Update 2, and Qt now supports this feature with Update 3.
• Time aware layers. The TimeAware interface was added and implemented by FeatureLayer, RasterLayer, ArcGISMapImageLayer, and WmsLayer. The new API allows you to set a time extent on the GeoView, and all layers participating will be filtered by the time extent. Other APIs introduced this at Update 2, and Qt now supports this feature with Update 3.
• The Runtime Error object is now creatable. This means that you can create custom Errors throughout your application and utilize the same error handling logic throughout your application, as well as provide additional details for any known issues.
• Support for OpenGL rendering on Windows. Qt has two different rendering engines for the Windows platform : OpenGL and DirectX via ANGLE. By default, Qt will try and render using OpenGL and if the proper drivers are not available, it will fall back to using ANGLE. Previous releases of ArcGIS Runtime only supported ANGLE. Update 3 fully supports both OpenGL and ANGLE so that you can fully utilize either rendering engine and Qt's fallback mechanism for when OpenGL cannot be utilized on a given system. For more information on this, please see Qt's documenation - https://wiki.qt.io/Qt_5_on_Windows_ANGLE_and_OpenGL
• Ability to get size and ID properties as either a string or int type in QML. Previously, these properties always returned as strings due to a limitation of the QML integer type being a 32-bit integer as opposed to 64-bit. You can now request the property as an int and get an actual QML int back.

Toolkit API

• TimeSlider toolkit component. Coinciding with our new TimeAware support is a ready-to-use Toolkit component that allows you easily filter data based on time. The TimeSlider also allows you to play and pause an animation of your spatiotemporal data.
• CoordinateConversion toolkit component. An easy-to-use UI component is now available to help you convert a given coordinate to one or more different formats. For example, you could convert from Decimal Degrees to MGRS with this tool. This tool has a slick new UI making use of the modern Qt Quick Controls 2 module.

SDK improvements

• Improved API documentation details added, as well as additional code snippets added throughout the documentation.
• Dozens of new samples have been added, with an extra emphasis placed on providing more fundamental samples, such as Geometry and GeometryEngine samples, as opposed to only new features.

We are looking forward to hearing about your experience with this exciting release. Happy coding!

- The Qt SDK Development Team