This Safety Manual is for Qt Safe Renderer version 1.2.

The Qt Safe Renderer module provides a UI rendering component that can be used to render safety-critical items, such as warning indicators, in functional safety systems. Qt Safe Renderer separates the safety-critical rendering from the other parts of the system. This ensures that Qt Safe Renderer is able to render the safety-critical UI elements even if there are failures in the main UI. With separation, Qt can be used in a system requiring certification without changing the Qt libraries.

Qt Safe Renderer provides a seamless integration with the Qt toolchain. The QML language and Qt Quick Designer can be used together with Qt Safe Layout Tool to generate layout data for safety-critical UI elements.

Contents

• Overview
• Module Functionalities
• Supported Development Environment
• Installing Qt Safe Renderer
• Building Qt Safe Renderer
  • Building for Host Platform
  • Building for QNX
  • Building for INTEGRITY
• Developing UI with Qt Safe Renderer
  • Safety-Critical UI with Qt Quick Designer
  • Enabling Qt Safe Renderer in Project
  • Practical Tips for Creating Layouts
  • Animations in Safety-Critical UI
  • Features Affecting Visibility of Safety-Critical UI Elements
• Qt Safe Renderer Examples
  • Telltales: Rendering Safety-Critical UI
  • Indicators: Creating Safety-Critical UI
  • Qt Cluster: Rendering on QNX and INTEGRITY
  • Running Examples on QNX
  • Running Examples on INTEGRITY
  • Testing the Messaging Interface
• Integrating Qt Safe Renderer
• Qt Safe Renderer C++ Classes
• Qt Safe Renderer QML Types
• Quality Control Tools
• Reporting Bugs and Change Requests
• FAQ