cristalyse 0.4.4

cristalyse: ^0.4.4 copied to clipboard

Added #

• Stacked Bar Charts: Full support for stacked bars with BarStyle.stacked
  • Segment-by-segment progressive animation with staggered timing
    • Automatic cumulative value calculation for proper stacking
    • Consistent color ordering across all stacked groups
    • Smart Y-scale domain calculation based on total stack heights (not individual segments)

Fixed #

• Stacked Bar Scale Domain: Y-axis now correctly calculates domain based on cumulative stacked totals instead of individual segment values, preventing bars from rendering outside chart bounds
• Stacked Bar Animation: Improved animation timing with proper segment delays for smooth visual building effect

Improved #

• Example App: Added new "Stacked Bars" tab showcasing revenue breakdown by category with realistic business data
• Chart Features Documentation: Updated feature descriptions to include stacked bar capabilities

Technical #

• Enhanced _setupYScale method to detect stacked bar geometries and calculate proper domain bounds
• Added 10% padding to stacked bar charts for better visual spacing
• Improved data grouping logic in _drawStackedBars with consistent sorting for predictable stacking order

Added

• 📸 Added screenshots of the example app to README

Improved

• Enhanced the example project to showcase multiple chart types, themes, and color palettes.

Technical

• Code quality improvements and linting compliance

Added

• Enhanced Theming: Added solarizedLightTheme and solarizedDarkTheme to the theme factory.
• Color Palettes: Introduced multiple color palettes (warm, cool, pastel) that can be applied independently of the base theme.
• Custom Label Styles: Added an optional axisLabelStyle to ChartTheme for more granular control over axis label appearance.
• Interactive Example App: The example app now features controls to dynamically cycle through themes, color palettes, and adjust chart-specific properties like bar width, line stroke width, and point size via a slider.

Fixed

• Axis Label Rendering: Overhauled axis label drawing logic to correctly render labels with proper spacing and prevent overlap, especially on horizontal charts.
• Color Palette Application: Ensured that color palette changes now correctly apply to all chart types, including those without explicit color mappings.

Changed

• Improved Padding: Increased default padding in ChartTheme to give axis labels more breathing room.

Added

• Bar chart support with geomBar().
• Horizontal bar chart functionality via coordFlip() method.
• Added borderRadius and borderWidth properties to BarGeometry for enhanced styling.

Fixed

• Resolved numerous rendering issues and lint errors in animated_chart_widget.dart to enable robust bar chart display.
• Corrected scale setup and drawing logic for flipped coordinates in horizontal bar charts.
• Ensured proper propagation of the coordFlipped flag throughout the chart rendering pipeline.

Technical

• Code quality improvements and linting compliance

Documentation

• Updated README with comprehensive examples and installation guide
• Added CONTRIBUTING.md for new contributors

Changed

• Updated deprecated code to use withValues instead of withOpacity

Added

• Line chart support with geom_line()
• Basic animations with configurable duration and curves
• Multi-series support with color-grouped lines
• Staggered point animations and progressive line drawing
• Dark theme support and theme switching

Fixed

• Canvas rendering crashes due to invalid opacity values
• TextPainter missing textDirection parameter
• Coordinate validation for edge cases and invalid data
• Animation progress validation and fallback handling
• Y-axis label positioning and overlap issues

Technical

• Comprehensive input validation for all numeric values
• Graceful handling of NaN, infinite, and out-of-bounds data
• Improved error recovery and fallback mechanisms

• Initial release
• Basic scatter plot support (geom_point)
• Grammar of graphics API
• Linear scales for continuous data
• Light and dark themes
• Cross-platform Flutter support

Planned for 0.2.0 #

• Line charts (geom_line)
• Basic animations
• Improved documentation
• Performance optimizations