Ebook-viewer: book cover for a TXTZ file is not shown

[etc205]

Open the attached file, "book2.txtz", in the viewer. Note that the book lacks the cover page at the very beginning.

Calibre version: 6.28,
OS: Windows 10 Home.

[Kovid Goyal (kovid)]

covers are pure metadata in txtz/htmlz files not part of book content
which is why they are not displayed. I could change that, but am not
particularly inclined too, patches welcome. Essentially you would need
to specialize the txtz/htmlz input plugins to generate a wrapper html
file for the cover in the spine when they are running for the viewer.

[etc205 (etc205)]

I see, thanks for explaining this.

[etc205 (etc205)]

> covers are pure metadata in txtz/htmlz files not part of book content which is why they are not displayed.

The cover, however, is displayed in the viewer for the HTMLZ version of the book (see the attached file), that's what made me think it should also be displayed for the TXTZ format.

[Kovid Goyal (kovid)]

In that case it will be present in the spine of the htmlz file, or the
htmlz input plugin is adding it dynamically. I dont recall the
details of these formats as they are not something I was personally
involved in, they were the brainchild of user-none (john schember) I
just maintain them here and there.

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every alternate Friday.

[etc205 (etc205)]

> Fixed in branch master.
The issue still persists for me in Calibre 6.29 - no book cover is shown in the viewer.

[Kovid Goyal (kovid)]

reload the book