EXCEEDS logo
Exceeds
Krzysztof Krysiński

PROFILE

Krzysztof Krysiński

Over three months, contributed to AvaloniaUI/Avalonia and JetBrains/Avalonia by enhancing input handling and resource management in C#. Developed pen input support for X11, introducing pressure sensitivity, tilt detection, and improved event differentiation between pen and eraser, while also implementing auto-repeat detection for more responsive Linux input. Addressed Windows pointer event accuracy by optimizing mouse movement ordering and processing, reducing jitter and improving UI responsiveness. In JetBrains/Avalonia, stabilized graphics resource lifecycles by ensuring proper disposal of drawing surfaces, preventing memory leaks during dynamic UI updates. Demonstrated expertise in C#, desktop application development, Windows API integration, X11 integration, and event-driven programming.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

4Total
Bugs
1
Commits
4
Features
3
Lines of code
390
Activity Months3

Work History

December 2025

2 Commits • 2 Features

Dec 1, 2025

Concise monthly summary for 2025-12 focusing on business value and technical achievements in Avalonia UI development.

November 2025

1 Commits • 1 Features

Nov 1, 2025

November 2025 monthly summary for AvaloniaUI/Avalonia: Implemented precise Windows mouse movement ordering to improve pointer event accuracy for applications requiring high-fidelity input. Introduced a static comparer and optimized mouse move point processing, reducing jitter and improving consistency across Windows input paths. The change enhances UI responsiveness and accuracy for desktop apps relying on precise mouse tracking. Key commit bc407c27b59b1e40d018e5d6cddb8f37d0fdb2c5 ('Fixed intermediate points order for windows (#20075)'). This work contributes to improved user experience in Windows environments and strengthens the robustness of the input subsystem.

March 2025

1 Commits

Mar 1, 2025

March 2025: Focused on stabilizing graphics resource lifecycles in JetBrains/Avalonia. Implemented resource cleanup to prevent memory leaks by disposing the drawing surface when DrawingSurfaceDemoBase is detached from the logical tree, contributing to improved application stability and memory footprint in dynamic UI scenarios.

Activity

Loading activity data...

Quality Metrics

Correctness90.0%
Maintainability80.0%
Architecture75.0%
Performance80.0%
AI Usage25.0%

Skills & Technologies

Programming Languages

C#

Technical Skills

C# programmingResource ManagementUI DevelopmentWindows API integrationX11 integrationdesktop application developmentevent-driven programminginput handling

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

AvaloniaUI/Avalonia

Nov 2025 Dec 2025
2 Months active

Languages Used

C#

Technical Skills

C# programmingWindows API integrationdesktop application developmentX11 integrationevent-driven programminginput handling

JetBrains/Avalonia

Mar 2025 Mar 2025
1 Month active

Languages Used

C#

Technical Skills

Resource ManagementUI Development