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Contents
# encoding: utf-8
module Fidgit
# Container that auto-packs elements.
#
# @abstract
class Packer < Container
attr_reader :spacing_h, :spacing_v
# @param (see Container#initialize)
#
# @option (see Container#initialize)
def initialize(options = {})
options = {
}.merge! options
@spacing_h = options[:spacing_h] || options[:spacing] || default(:spacing_h)
@spacing_v = options[:spacing_v] || options[:spacing] || default(:spacing_v)
super(options)
end
protected
# Recalculate the size of the container.
# Should be overridden by any descendant that manages the positions of its children.
def layout
# This assumes that the container overlaps all the children.
# Move all children if we have moved.
@children.each.with_index do |child, index|
child.x = padding_left + x
child.y = padding_top + y
end
# Make us as wrap around the largest child.
rect.width = (@children.map {|c| c.width }.max || 0) + padding_left + padding_right
rect.height = (@children.map {|c| c.height }.max || 0) + padding_top + padding_bottom
super
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems