How to Dynamically Change Images in TextArea in Spotfire® Using IronPython Scripting

Introduction

Below is a sample IronPython Script on how to change images in Text Area based on the selection from a dropdown. For this example add a dropdown to the text area and then configure to execute the below script on the document property change

Code Sample

# Copyright © 2017. TIBCO Software Inc. Licensed under TIBCO BSD-style license.

from Spotfire.Dxp.Application.Visuals import *
from System.IO import *
from System.Drawing import *
from System.Drawing.Imaging import *
from System.Text.RegularExpressions import *
#from System.Drawing.Imaging.ImageFormat import *

vis=txtArea.As[HtmlTextArea]()



image1 = Image.FromFile(r"C:SourceJapan.png");
image2 = Image.FromFile(r"C:SourceSpain.png");
image3 = Image.FromFile(r"C:SourceFrance.png");

image1Exists=vis.Images.Contains("Japan")
image2Exists=vis.Images.Contains("Spain")
image3Exists=vis.Images.Contains("France")

if not image1Exists:
	vis.Images.Add("Japan",image1,ImageFormat.Png)
if not image2Exists:
	vis.Images.Add("Spain",image2,ImageFormat.Png)
if not image3Exists:
	vis.Images.Add("France",image3,ImageFormat.Png)

content=vis.HtmlContent

#check if image is already present
htmlImage=content.Contains("img src")
#Get which Image
imageName=Document.Properties["showImage"]
if htmlImage:
	#code to replace the image
	input = vis.HtmlContent;
	oldValue = Regex.Match(input, ""(.+?)"").Groups[1].Value;
	print oldValue
	input = input.Replace(oldValue,imageName );
	#print input
	vis.HtmlContent=input
	print vis.HtmlContent
else:
	addImage= "<img src=""+imageName+"" style="border: 0; width: 100px; height: 100px;"/>"
	vis.HtmlContent=addImage+content

References

• API Reference: HtmlTextArea
• API Reference: HtmlTextArea.Images

License:  TIBCO BSD-Style License

Back to IronPython Scripting in TIBCO Spotfire Examples:  https://community.spotfire.com/s/article/IronPython-Scripting-in-Spotfire