mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 13:03:45 +08:00
35 lines
945 B
Ruby
35 lines
945 B
Ruby
module ImageSizer
|
|
|
|
# Resize an image to the aspect ratio we want
|
|
def self.resize(width, height, opts = {})
|
|
return if width.blank? || height.blank?
|
|
|
|
max_width = (opts[:max_width] || SiteSetting.max_image_width).to_f
|
|
max_height = (opts[:max_height] || SiteSetting.max_image_height).to_f
|
|
|
|
w = width.to_f
|
|
h = height.to_f
|
|
|
|
return [w.floor, h.floor] if w <= max_width && h <= max_height
|
|
|
|
ratio = [max_width / w, max_height / h].min
|
|
[(w * ratio).floor, (h * ratio).floor]
|
|
end
|
|
|
|
def self.crop(width, height, opts = {})
|
|
return if width.blank? || height.blank?
|
|
|
|
max_width = (opts[:max_width] || SiteSetting.max_image_width).to_f
|
|
max_height = (opts[:max_height] || SiteSetting.max_image_height).to_f
|
|
|
|
w = width.to_f
|
|
h = height.to_f
|
|
|
|
return [w.floor, h.floor] if w <= max_width && h <= max_height
|
|
|
|
ratio = max_width / w
|
|
[max_width.floor, [max_height, (h * ratio)].min.floor]
|
|
end
|
|
|
|
end
|