Class: Potty::Widgets::VBox

Inherits:
Container show all
Defined in:
lib/potty/widgets/container.rb

Overview

Vertical stack — children top to bottom, each at its preferred height.

Instance Attribute Summary

Attributes inherited from Container

#children

Attributes inherited from Base

#app, #focused, #parent, #rect

Instance Method Summary collapse

Methods inherited from Container

#add, #focusable_widgets, #initialize, #on_layout, #render, #tick

Methods inherited from Base

#activate, #blur, #can_focus?, #deactivate, #focus, #handle_escape, #handle_key, #hide, #initialize, #layout, #on_blur, #on_focus, #on_layout, #render, #show, #theme, #tick, #visible=, #visible?

Methods included from Events

#emit, #listeners?, #off, #on

Constructor Details

This class inherits a constructor from Potty::Widgets::Container

Instance Method Details

#layout_children ⇒ Object 



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# File 'lib/potty/widgets/container.rb', line 75

def layout_children
  rects = Layout.stack(@rect.dup, @children, spacing: @spacing)
  @children.zip(rects).each { |child, rect| child.layout(rect) }
end

#preferred_height(width) ⇒ Object 



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# File 'lib/potty/widgets/container.rb', line 69

def preferred_height(width)
  return 0 if @children.empty?

  @children.sum { |c| c.preferred_height(width) } + @spacing * (@children.size - 1)
end