Class: Chamomile::Widgets::Panel

Inherits:
Object
  • Object
show all
Defined in:
lib/chamomile/frame.rb

Overview

Bordered panel with optional title.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(title: nil, border: :rounded, width: nil) ⇒ Panel

Returns a new instance of Panel.



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# File 'lib/chamomile/frame.rb', line 115

def initialize(title: nil, border: :rounded, width: nil)
  @title = title
  @border = border
  @width = width
  @children = []
end

Instance Attribute Details

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/chamomile/frame.rb', line 113

def children
  @children
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/chamomile/frame.rb', line 113

def title
  @title
end

Instance Method Details

#render(width: 80, height: 24) ⇒ Object 



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# File 'lib/chamomile/frame.rb', line 128

def render(width: 80, height: 24)
  w = @width || width
  inner_w = [w - 2, 0].max
  inner_h = [height - 2, 0].max

  # Render children
  content_lines = []
  @children.each do |child|
    content_lines.concat(child.render(width: inner_w, height: inner_h).split("\n", -1))
  end

  # Pad or truncate to inner height
  content_lines = content_lines[0, inner_h] if content_lines.length > inner_h
  while content_lines.length < inner_h
    content_lines << ""
  end

  border_chars = resolve_border
  top_line = build_top(border_chars, inner_w)
  bottom_line = "#{border_chars[:bl]}#{"#{border_chars[:h]}" * inner_w}#{border_chars[:br]}"

  body = content_lines.map do |line|
    padded = line.length < inner_w ? "#{line}#{" " * (inner_w - line.length)}" : line[0, inner_w]
    "#{border_chars[:v]}#{padded}#{border_chars[:v]}"
  end

  [top_line, *body, bottom_line].join("\n")
end

#text(content) ⇒ Object 



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# File 'lib/chamomile/frame.rb', line 122

def text(content)
  t = Text.new(content: content.to_s)
  @children << t
  t
end