How we stopped using the mouse and started drawing molecules with...
summary
Porting a legacy Qt QWidget molecule editor to QML, the team keeps the original QPainter component silenced and implements all input logic in QML so fingers replace the mouse without rewriting the drawing core. Heavy computations move to the cloud over REST + OAuth2 cloud compute, enabling asynchronous jobs, cross‑device sync and server‑enforced licensing. A new custom QML plotting library uses scene graph / OpenGL for mobile performance. Work lasts ~6 months with three engineers and one designer; Android ships, iOS follows. Material Design theming
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chapters (5)
- 0:00Introduction and project overview
- 2:57Rewriting from scratch for mobile
- 7:36Improving UI and design system
- 12:19Moving computation to the cloud
- 17:00Q&A and summary
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