I am looking for a gem or solution to generate image in controller response.
It would be nice if it's possible to do in controller like that:
respond_to :html, :png
def show
...
respond_to do |format|
format.html
format.png { ??? } # some html to png converter
end
end
When the png
format is requested the response handles with template:
#show.png.haml
%h1
Some title
%p
Some content
The result should be an image.
I know about pdf
generation solutions PDFKit, prawn and am looking for image generation.
Does anybody know working solution/example? Any starting point would be very appreciated.
Check out here: http://weblog.rubyonrails.org/2006/12/19/using-custom-mime-types
Mime::Type.register "image/png", :png
# then in your controller action
def show
respond_to do |format|
format.html { }
format.png { }
end
end
UPD
What about image generating. If you need to convert your HTML page into image. You can use wkhtmltoimage
http://code.google.com/p/wkhtmltopdf/downloads/detail?name=wkhtmltoimage-0.10.0_beta2-static-amd64.tar.bz2&can=4&q=
There is no gem like pdfkit
for wkhtmltopdf
but it is easy to use.
Also you can use pdfKIT
gem and after that convert PDF to PNG with imagemagick. That is quite easy too.
UPD
Istead of using SnapShot
I prefer to use IMGKit
gem