7 Inline Images - Reference Documentation
Authors: Grails Plugin Collective
Version: 1.0.0
7 Inline Images
This plugin adds support for inline images via data uris This is useful for situations where the images you need to imbed in a rendered PDF or image are generated by the application itself.For example, your application may generate barcodes that you don't necessarily want to expose but want to include in your generated PDFs or images. Using inline images, you can include the image bytes in the document to be rendered.To make this easier, the plugin provides tags to render byte arrays as common image formats (i.e. gif, png and jpeg).The tags are under the namespacerendering
and are called inlinePng
, inlineGif
and inlineJpeg
. They all take a single argument, bytes
, which is a byte
containing the raw bytes of the images. This will result in an img
tag with a src
attribute of a suitable data uri. Any other parameters passed to the tag will be expressed as attributes of the resultant img
tag.Here is an example of how this could be used to include a local (i.e. from the filesystem) image in a generated pdf/image.class SomeController { def generate = { def file = new File("path/to/image.png") renderPng(template: "thing", model: [imageBytes: file.bytes]) }}
<html> <head></head> <body> <p>Below is an inline image</p> <rendering:inlinePng bytes="${imageBytes}" class="some-class" /> </body> </html>