awesome_scrollable_charts

Fixed

• Fixed visibleLabels not working correctly when chart widget width is not full screen. Charts now properly use the constrained layout width instead of device screen width for all calculations, ensuring correct label visibility, scroll behavior, and pointer positioning in containers like SizedBox, Expanded, or Row with specific widths.

Added

• LabelTransformer typedef for customizing label formatting
• defaultLabelTransformer function that provides default label formatting
• labelTransformer parameter to both LineChart and StackedAreaChart widgets
• LabelOverlapBehavior enum with three strategies for handling overlapping line labels:
  • none - No overlap handling (default, maintains backward compatibility)
  • adjust - Smart collision detection that automatically adjusts label positions vertically
  • hide - Hides overlapping labels, showing only non-conflicting ones
• overlapBehavior parameter to LineLabelStyle for configuring label overlap strategy

Changed

• BREAKING: CumulativeLabelStyle now uses TextStyle textStyle instead of separate textColor, fontSize, and fontWeight properties
• BREAKING: XAxisLabelStyle now uses TextStyle textStyle instead of separate color, fontSize, and fontWeight properties
• BREAKING: LineLabelStyle now uses TextStyle textStyle instead of separate textColor, fontSize, and fontWeight properties

Migration Guide

To migrate from 0.1.0 to 0.2.0, update your style configurations:

// Before (0.1.0)
XAxisLabelStyle(
  color: Colors.black87,
  fontSize: 12.0,
  fontWeight: FontWeight.w500,
)

// After (0.2.0)
XAxisLabelStyle(
  textStyle: TextStyle(
    color: Colors.black87,
    fontSize: 12.0,
    fontWeight: FontWeight.w500,
  ),
)

Added

• Initial release of Scrollable Charts
• LineChart widget with smooth scrolling and animations
• StackedAreaChart widget for cumulative data visualization
• Extensive customization options:
  • Grid lines (solid and dashed)
  • Data markers (8 different shapes)
  • Custom colors and styling
  • X-axis and zero-line customization
  • Data labels with positioning
• Animation system:
  • Smooth Y-axis range animations
  • Configurable animation curves and durations
  • Scroll snap physics
• Data handling features:
  • Support for missing data points
  • Multiple lines/areas per chart
  • Callbacks for visible range and selection changes
• Comprehensive documentation and examples