shadows library

👥 Shadows

Provides 👓 BoxShadowUtils extension on BoxShadow for manipulation of shadows by copyWith.

• Consider the operator overrides for even simpler syntax.

Provides ⛅ BoxShadowsUtils extension on List<BoxShadow> for mass shadow manipulation.

Provides 🕴 Elevation class with static methods used to simply produce BoxDecorations from Flutter's top-level kElevationToShadow.

Reference

• 👓 BoxShadowUtils extension on BoxShadow
  • 📋 copyWith Copy With replacement properties
  • ❌ * "Multiply" this BoxShadow by a Color
  • ❌ * "Multiply" this blurRadius by a num
  • ➕ + "Add" to this spreadRadius a double smudgeSpread
  • ➖ - "Subtract" from this spreadRadius a double squishSpread
  • 📏 % "Modulate" this offset by Offset offsetScale
• ⛅ BoxShadowsUtils extension on List<BoxShadow>
  • 🎨 colorize a List<BoxShadow> with single [Color] or List colors
    • Optionally ❓ preserveOpacity of the originals
  • 📊 rampOpacity of a List<BoxShadow> with single [double] or List stops
    • Optionally 🎨 override a color and ramp simultaneously
• 🕴 Elevation's static decoration methods
  • Elevation.asBoxShadows(double elevation, {Color? color})
  • Elevation.asBoxDecoration(double elevation, {Color? color})
• ElevationUtils extension on List<BoxShadow>
  • 🟦 materialize will apply the Material-standard shadow opacity map kElevationShadowOpacityRamp to a List<BoxShadow>

Classes

BoxDecoration

An immutable description of how to paint a box.

BoxShadow

A shadow cast by a box.

Color

An immutable 32 bit color value in ARGB format.

Elevation

🕴 Elevation double => <BoxShadow>[]

Offset

An immutable 2D floating-point offset.

Extensions

BoxShadowsUtils on List<BoxShadow>

⛅ Box Shadows Utilities

BoxShadowUtils on BoxShadow

👓 Box Shadow Utilities

ElevationUtils on List<BoxShadow>

Provides 🟦 materialize for a tuple of BoxShadows.

Constants

kElevationShadowOpacityRamp → const List<double>

🟦 0.2, 0.14, 0.12 Considering the shadows in kElevationToShadow use these three Colors:

kElevationToShadow → const Map<int, List<BoxShadow>>

Map of elevation offsets used by Material Design to BoxShadow definitions.