class Opal::UI::Sparkline

Overview

Unicode block sparkline generator for visualizing numeric trends.

Defined in:

opal/ui/components/sparkline.cr

Constant Summary

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

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from class Opal::UI::Element

add_class(name : String) : self add_class, children : Array(Element) children, classes : Set(String) classes, classes=(classes : Set(String)) classes=, has_class?(name : String) : Bool has_class?, id : String | Nil id, id=(id : String | Nil) id=, preferred_print_size(available_w : Int32) : Tuple(Int32, Int32) preferred_print_size, preferred_size(available_w : Int32, available_h : Int32) : Tuple(Int32, Int32) preferred_size, print(io : IO = STDOUT, width : Int32 | Nil = nil, color : Bool | Nil = nil, theme : Theme | Nil = nil) : Nil print, query(selector : String) : Array(Element)
query(klass : T.class) : Array(T) forall T query, query_one(selector : String) : Element
query_one(klass : T.class) : T forall T query_one, query_one?(selector : String) : Element | Nil
query_one?(klass : T.class) : T | Nil forall T query_one?, remove_class(name : String) : self remove_class, render(buffer : Buffer, x : Int32, y : Int32, width : Int32, height : Int32) : Nil render, render_print(buffer : Buffer, width : Int32, height : Int32) : Nil render_print, to_print_s(width : Int32 | Nil = nil, color : Bool | Nil = nil, theme : Theme | Nil = nil) : String to_print_s, to_string(width : Int32 | Nil = nil, color : Bool | Nil = nil, theme : Theme | Nil = nil) : String to_string

Instance methods inherited from module Opal::UI::Themable

current_theme : Theme current_theme, style(&block : self -> Nil) : self style, theme : Theme | Nil theme, theme=(theme : Theme | Nil) theme=, with_theme(new_theme : Theme | Symbol | String) : self with_theme

Constructor Detail

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

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Class Method Detail

def self.print(data : Array(Float64), title : String | Nil = nil, io : IO = STDOUT, width : Int32 | Nil = nil, color : Color | Symbol | String = :cyan, min : Float64 | Nil = nil, max : Float64 | Nil = nil, ansi : Bool | Nil = nil) : Nil #

Prints sparkline with optional title and bounds directly to IO


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

Convenience helper returning sparkline as a string


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Instance Method Detail

def color : Color #

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def data : Array(Float64) #

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def max : Float64 | Nil #

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def min : Float64 | Nil #

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def preferred_print_size(available_w : Int32) : Tuple(Int32, Int32) #

Preferred size in print mode


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def preferred_size(available_w : Int32, available_h : Int32) : Tuple(Int32, Int32) #

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def render(buffer : Buffer, x : Int32, y : Int32, width : Int32, height : Int32) : Nil #

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def title : String | Nil #

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