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Allow for specifying thumbnail size

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This commit is contained in:
Marcin Kulik 2012-04-06 22:20:04 +02:00
parent 7c635ed7db
commit af43a2177e
1 changed files with 9 additions and 9 deletions
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18
app/decorators/asciicast_decorator.rb
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@ -28,15 +28,15 @@ class AsciicastDecorator < ApplicationDecorator
end
end
def thumbnail
def thumbnail(width = THUMBNAIL_WIDTH, height = THUMBNAIL_HEIGHT)
if @thumbnail.nil?
lines = model.snapshot.to_s.split("\n")
top_lines = lines[0...THUMBNAIL_HEIGHT]
top_text = prepare_lines(top_lines).join("\n")
top_lines = lines[0...height]
top_text = prepare_lines(top_lines, width, height).join("\n")
bottom_lines = lines.reverse[0...THUMBNAIL_HEIGHT].reverse
bottom_text = prepare_lines(bottom_lines).join("\n")
bottom_lines = lines.reverse[0...height].reverse
bottom_text = prepare_lines(bottom_lines, width, height).join("\n")
if top_text.gsub(/\s+/, '').size > bottom_text.gsub(/\s+/, '').size
@thumbnail = top_text
@ -50,12 +50,12 @@ class AsciicastDecorator < ApplicationDecorator
private
def prepare_lines(lines)
(THUMBNAIL_HEIGHT - lines.size).times { lines << '' }
def prepare_lines(lines, width, height)
(height - lines.size).times { lines << '' }
lines.map do |line|
line = line[0...THUMBNAIL_WIDTH]
line << ' ' * (THUMBNAIL_WIDTH - line.size)
line = line[0...width]
line << ' ' * (width - line.size)
line
end
end