[PDFBOX-3828] Generate appearance stream for multiselect listboxes

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.6
• Fix Version/s: 2.0.7, 3.0.0 PDFBox
• Component/s: AcroForm
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 12/Jun/17 15:45
• Updated: 21/Jul/17 04:40
• Resolved: 14/Jun/17 21:35

Description

AppearanceGeneratorHelper.insertGeneratedSelectionHighlight() does not yet support multiselect listboxes. Two other problems are that the positions are incorrect (at least with the attached file), and that it insists on having at least one element selected. IMHO it is allowed to have none element selected in a listbox, see attached "empty" file, which I created by saving a file with Adobe Reader that had "needAppearances" set.

I expanded the existing code for multiselect, and corrected the position problem with some trial-and-error.

Issue Links

• links to: How to set multiple option for PDListBox in PDFBox?