Calibre v5.7.2 – 开源电子书管理程序-软件志

Calibre是一款开源免费的电子书管理程序，由国外高手KOVID GOYAL编写。Calibre 4.0 主要的一个变化是 Content server 使用的 web 内容渲染引擎从 Qt WebKit 迁移到 Qt WebEngine，原因是前者不再维护。

切换到 Qt WebEngine 也使得 Calibre 重写了电子书浏览器、PDF Output 等组件，Content server 加入了元数据编辑、电子书移除和添加，转换到所有支持格式等功能。

因为渲染引擎发生了变化，因此部分功能不再兼容。

Release: 5.7.2 [12 Dec, 2020]

E-book viewer: Add a “Read aloud” function that works via the operating system’s Text-to-speech engine.
Click the “Read aloud” button in the viewer controls to start reading the book text aloud from the current page.
A new busy spinner for waiting animations
Edit metadata: Add buttons to easily set yes/no fields also shortcut to clear the field.
Closes tickets: 1907140

PDF Output: Fix a regression in the previous release that broke text rendering for some fonts due to a bug in Qt WebEngine (full fix is in 5.7.2).
Closes tickets: 1905967
PDF Output: Fix conversion failing when adding header/footer and the input document defines margins/padding on the <html> tag.
Closes tickets: 1905736
Windows: Fix the case of library names in copied calibre:// links sometimes incorrect.
Closes tickets: 1907159
AZW3 Input: Fix a regression in calibre 5 that broke processing of files with inline flow replacements.
Closes tickets: 1906459
Fix hiding and showing book details panel changes its size by a pixel or two.
Closes tickets: 1906149
Get books: Fix amazon.fr not working because of website changes.
Closes tickets: 1907067
Bulk metadata search/replace: Fix text transform function not being applied to the test result in character mode
Book list: Improve rendering of column headers when they dont fit, by eliding them instead of just cutting off rendering.
Closes tickets: 1906464
Fix template function “first_non_empty” fails if no argument evaluates non-empty
Closes tickets: 1906063
Fix regression in 5.7.0 causing failure to start if one of the previously used libraries had a stored path ending in a slash.
Closes tickets: 1907773