Image Management Tool

Ignition
19

The following works in versin 7.9.13, but any suggestions for improvement are greatly appreciated:

Gateway Event Script \ Message named image_upload:

	from com.inductiveautomation.ignition.gateway import SRContext
	from com.inductiveautomation.ignition.gateway.images import ImageFormat
	
	context = SRContext.get()
	image = context.getImageManager()

#	1  Valid image types PNG, JPEG, GIF, BMP
	image_type = {
		'PNG' : ImageFormat.PNG,
		'JPG' : ImageFormat.JPEG,
		'JPEG': ImageFormat.JPEG,
		'GIF' : ImageFormat.GIF,
		'BMP' : ImageFormat.BMP}[payload['image_type']]

	image.insertImage(payload['image_name'], payload['image_desc'], image_type, payload['folder'], payload['image_data'], payload['width'], payload['height'], payload['size'])
	
	return

Script on the “Upload” button on the Vision Window:

from java.awt import Toolkit
from java.io import File
from org.apache.commons.io import FilenameUtils
import imghdr

filepath = event.source.parent.getComponent('File Explorer').selectedPath

payload = {}
payload['image_name'] = File(filepath).name
payload['image_desc'] = None

#  Valid image types PNG, JPEG, GIF, BMP, fix this in the message handler
payload['image_type'] = imghdr.what(str(filepath)).upper()

#  Foward slash is necessary part of folder name
payload['folder'] = "folder/"

javaImage = Toolkit.getDefaultToolkit().getImage(filepath)
payload['width']  = javaImage.width
payload['height'] = javaImage.height

size = File(filepath).length()
payload['size']   = size

payload['image_data'] = system.file.readFileAsBytes(filepath)

#  Call the gateway event script message handler, named image_upload on this project
proj = system.tag.read("[System]Client/System/ProjectName").value
status  = system.util.sendRequest(proj, 'image_upload', payload)
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