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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2022/05/17 03:51:00 UTC

[jira] [Updated] (PDFBOX-5436) PDTerminalField.applyChange() not longer check for getAcroForm().getNeedAppearances()

     [ https://issues.apache.org/jira/browse/PDFBOX-5436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr updated PDFBOX-5436:
------------------------------------
    Affects Version/s: 3.0.0 PDFBox
                           (was: 3.0.3 JBIG2)

> PDTerminalField.applyChange() not longer check for getAcroForm().getNeedAppearances()
> -------------------------------------------------------------------------------------
>
>                 Key: PDFBOX-5436
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5436
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 3.0.0 PDFBox
>            Reporter: wai
>            Priority: Major
>
> In version 2.0.26, I fill fields in PDF form by
> {code:java}
> PDDocument pdf = ...; // loaded a PDF form
> PDAcroForm pdfForm = pdf.getDocumentCatalog().getAcroForm(); 
> pdfForm.setNeedAppearances(true);
> pdfForm.getField("field_name_xxxx").setValue("some text");{code}
> Although the PDF form doesn't contain all glyph for the text set, {{org.apache.pdfbox.pdmodel.interactive.form.PDTerminalField.applyChange()}} would not apply {{constructAppearances()}} as {{setNeedAppearances(true)}} configured.
> However when we come to version 3.0.0-alpha3, {{PDTerminalField.applyChange()}} won't check the status from {{getAcroForm().getNeedAppearances()}} before invoking {{{}constructAppearances(){}}}. This behaviour contradicted the comment wrote "{{{}Applies a value change to the field. Generates appearances if required and raises events.{}}}"
> +version 2.0.26+
>  
> {code:java}
> package org.apache.pdfbox.pdmodel.interactive.form;
> public abstract class PDTerminalField extends PDField
> {
>     /**
>      * Applies a value change to the field. Generates appearances if required and raises events.
>      * 
>      * @throws IOException if the appearance couldn't be generated
>      */
>     protected final void applyChange() throws IOException
>     {
>         if (!getAcroForm().getNeedAppearances())
>         {
>             constructAppearances();
>         }
>         // if we supported JavaScript we would raise a field changed event here
>     }{code}
>  
> +3.0.0-alpha3+
>  
> {code:java}
> package org.apache.pdfbox.pdmodel.interactive.form;
> public abstract class PDTerminalField extends PDField
> { 
>     /**
>      * Applies a value change to the field. Generates appearances if required and raises events.
>      * 
>      * @throws IOException if the appearance couldn't be generated
>      */
>     protected final void applyChange() throws IOException
>     {
>         constructAppearances();
>         // if we supported JavaScript we would raise a field changed event here
>     }{code}
>  
>  
>  
>  
>  



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