FieldFormatter throwing error with tecnickcom/tc-lib-barcode 2.3

I can't reproduce this. How did you set the width? Do you see the same error when using the default width?
What version of Drupal? Are you using Barcodes 2.1.0?

The field formatter parameters that need to be integers are width, height, padding_top, padding_bottom, padding_right, and padding_left. All of these are defined as integers in the field formatter schema.
All of these are initialized to integer values.
All of these use "number" form elements for user input, ensuring that only integers get passed to the code.
I would expect either all of these show the same error or that none of them show that error.

I don't see how width can be a string at that point in the code, unless you are setting it by importing a config file. Drupal doesn't enforce types when importing config files, so if your config file is setting the width to a string value then it won't be checked - if that's the case just edit your config file to ensure the width is an integer and not quoted like a string.

@srjosh: Is this still a problem? If so please provide the requested information so I can help.

Hi,
Same issue here with version 2.3.1 of tecnickcom/tc-lib-barcode.
Bug appears when using barcode in Views (Drupal 10.4.1).
Solution is one proposed by srjosh.
Lines 256 & 257

-          $this->getSetting('width'),
-          $this->getSetting('height'),
+         (int)$this->getSetting('width'),
+         (int)$this->getSetting('height'),

Still need the information I asked for above and instructions for how to reproduce this error.

Ok.
Create a new content type: barcode test
Add a field: short plain text, name EAN13, max length = 13
Add a content: title = test, EAN13 = 9781837633104
Add a view: barcodes, content type barcode test, published = yes
Add field EAN13: format = barcodes, barcode type = EAN13, save field settings
try to preview -> bug

If you cast as my previous message, there's no more bug
Use attached config files to reproduce the error

Tested with versions 2.1.0 an 2.1.1 of module

I noticed a strange behavior in views: if i change a setting of field EAN13 and preview without saving the view, bug appears, if i save view before previewing, there's no bug.

First time i noticed the error, it was in front-office with the view displayed as a page. Version 2.1.0

N.B.: attached files have been renamed when uploading them, remove last _

I followed your steps, and my .yml looks the same as yours.

But I don't see this error.

However, I don't have the exact same versions as you do - I am using Drupal 11.0 and tecnickcom/tc-lib-barcode: 2.4.0

I'm assuming this is a new install of the Barcodes module, and not a site where you have upgraded from a previous version of Barcodes? Internally, width and height used to be strings, but that was fixed almost two years ago in release 2.0.5. However, if you upgraded or imported your configuration from an older installation then that might account for the wrong type.

When I get a chance I will try to write a test case that follows your steps.

I noticed a strange behavior in views: if i change a setting of field EAN13 and preview without saving the view, bug appears, if i save view before previewing, there's no bug.

I think this happens for all field formatters in views. If you now go and change the color or the barcode type - the preview will still use the old settings until the view is saved. You issue seems to be that initially the width and height are stored in the Field Formatter settings as strings, and only get changed to integers when the formatter settings are saved.

I am strongly opposed to just casting things - all that does is hide the typing error. Ensuring we are passing around the data that we think we are passing around is important in order to make this code better. As far as I can tell width and height are being initialized as integers, input as integers on the settings form, and passed around as integers everywhere, so if they are being changed to string at some point I want to know where and correct it at that point.