Is it posssible to Change Text Area Image Dynamically

[siva sai 2]

Hi Everyone,

I have a poperty control in Textarea with three vlaues A,B and C and each value has a different image to be shown in the same text area where this property control resides . Means i have a inserted image in spotfire and it has to be changed on the property control selection.

Thanks in Advance

[Shandilya Peddi]

Below are the steps to do the needed,

1. To be able to change the images shown in the Text Area dynamically, first we need to add the images to the ImageCollection and then change as needed

Below is a sample script that add/changes the images as needed

from Spotfire.Dxp.Application.Visuals import *

from System.IO import *

from System.Drawing import *

from System.Drawing.Imaging import *

from System.Text.RegularExpressions import *

 

#Add txtArea as a script parameter referring to the TextArea

vis=txtArea.As[HtmlTextArea]()

 

 

# Add images from a file

image1 = Image.FromFile(r"C:Users\Downloadsimage001.png");

image2 = Image.FromFile(r"C:Users\Downloadsimage001.jpg");

image3 = Image.FromFile(r"C:Users\Downloadsimage001 (2).png");

 

#Check if the images already exist in the collection

image1Exists=vis.Images.Contains("image1")

image2Exists=vis.Images.Contains("image2")

image3Exists=vis.Images.Contains("image3")

 

#Add the images to the collection if not already added

if not image1Exists:

vis.Images.Add("image1",image1,ImageFormat.Png)

if not image2Exists:

vis.Images.Add("image2",image2,ImageFormat.Jpeg)

if not image3Exists:

vis.Images.Add("image3",image3,ImageFormat.Png)

 

#Get which Image to be shown

imageName=Document.Properties["showImage"]

 

#Get the current html content

content=vis.HtmlContent

 

#check if HTML image element is already present

htmlImage=content.Contains("img src")

 

 

if htmlImage:

#code to replace the image

input = vis.HtmlContent;

oldValue = Regex.Match(input, ""(.+)"").Groups[1].Value;

input = input.Replace(oldValue,imageName );

vis.HtmlContent=input

else:

#code to add the HTML Image element the first time

addImage= ""

vis.HtmlContent=addImage+content