class Opal::UI::Sparkline

• Opal::UI::Sparkline
• Opal::UI::Element
• Reference
• Object

Overview

Unicode block sparkline generator for visualizing numeric trends.

Defined in:

opal/ui/components/sparkline.cr

Constant Summary

BLOCKS = [' ', '▂', '▃', '▄', '▅', '▆', '▇', '█']

Constructors

• .new(data : Array(Float64), color : Color | Symbol | String = :cyan, title : String | Nil = nil, min : Float64 | Nil = nil, max : Float64 | Nil = nil)

Class Method Summary

• .render_to_string(data : Array(Float64), color : Color | Symbol | String = Color.none) : String

  Convenience helper returning sparkline as a string

Instance Method Summary

• #color : Color
• #data : Array(Float64)
• #max : Float64 | Nil
• #min : Float64 | Nil
• #preferred_size(available_w : Int32, available_h : Int32) : Tuple(Int32, Int32)
• #render(buffer : Buffer, x : Int32, y : Int32, width : Int32, height : Int32) : Nil
• #title : String | Nil

Constructor Detail

Class Method Detail

Instance Method Detail