Added #

• Initial release of Save Points Chart library
• 7 chart types: Line, Bar, Area, Pie, Donut, Radial, and Sparkline
• Full light/dark theme support with automatic adaptation
• Material 3 design principles
• Glassmorphism and Neumorphism effects
• Loading and error states for all charts
• Interactive point/bar/segment tapping
• Smooth animations for all chart types
• Performance optimizations (RepaintBoundary, efficient rendering)
• Comprehensive API documentation
• Main export file for easy imports
• Input validation and error handling
• Accessibility support (Semantics widgets)
• Comprehensive README with examples

Features #

• Line Chart: Multiple series, gradient fills, interactive points
• Bar Chart: Grouped/stacked bars, rounded corners, customizable spacing
• Area Chart: Filled areas with gradients, smooth curves
• Pie Chart: Percentage labels, legend support, animations
• Donut Chart: Center value display, modern design
• Radial Chart: Multi-dimensional data visualization
• Sparkline Chart: Compact inline trend visualization

Performance #

• Single-pass bounds calculation
• Isolated repaints with RepaintBoundary
• Cached calculations
• Batched canvas operations
• Optimized text rendering

Documentation #

• Complete API documentation with dartdoc
• Usage examples for all chart types
• Performance optimization guide
• Architecture documentation

Added #

• Optional Theme Parameter: All chart widgets now support optional theme parameter
  • Charts automatically adapt to Material theme (light/dark mode) when theme is not provided
  • Backward compatible - existing code with explicit themes continues to work
  • Simplifies usage: LineChartWidget(dataSets: data) now works without requiring a theme

Fixed #

• Context Menu Tap Issues: Fixed issue where only the first tap on chart elements was working
  • Context menus now work correctly on all subsequent taps
  • Fixed overlay blocking that prevented multiple interactions
  • Improved tap handling across all chart types (Line, Bar, Area, Pie, Donut, Radial, Sparkline)
• Overlay Management: Improved context menu overlay handling
  • Proper cleanup of overlays before showing new menus
  • Better hit test behavior to allow taps through overlays
  • Fixed selection state management

Improved #

• Performance: Enhanced tap detection and interaction handling
  • Added proper state clearing when tapping outside elements
  • Optimized overlay removal timing
  • Better gesture detector behavior for all chart types

Changed #

• theme parameter is now optional in all chart widgets:
  • LineChartWidget
  • BarChartWidget
  • AreaChartWidget
  • PieChartWidget
  • DonutChartWidget
  • RadialChartWidget
  • SparklineChartWidget
  • ChartContainer

[Unreleased] #

Planned #

• Unit and widget tests
• Internationalization (i18n) support
• CI/CD pipeline with GitHub Actions
• Additional chart types (Candlestick, Heatmap)
• Export functionality (PNG, SVG)
• Zoom and pan interactions
• Real-time data streaming support