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Fix aspect ratio of expanded cover when dpr != 1

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Kovid Goyal 2025-12-25 21:47:00 +05:30
parent daccfa1f72
commit 90509ec00e
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1 changed files with 4 additions and 2 deletions
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src/calibre/gui2/library/bookshelf_view.py
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@ -1768,14 +1768,16 @@ class BookshelfView(MomentumScrollMixin, QAbstractScrollArea):
def load_hover_cover(self, si: ShelfItem) -> tuple[PixmapWithDominantColor, QSize]:
lc = self.layout_constraints
cover_img = self.dbref().cover(si.book_id, as_image=True)
final_sz = QSize(lc.hover_expanded_width, lc.spine_height - si.reduce_height_by)
if cover_img is None or cover_img.isNull():
cover_pixmap = self.default_cover_pixmap()
else:
dpr = self.devicePixelRatioF()
sz = (QSizeF(lc.hover_expanded_width, lc.spine_height - si.reduce_height_by) * dpr).toSize()
sz = (QSizeF(final_sz) * dpr).toSize()
_, cover_img = resize_to_fit(cover_img, sz.width(), sz.height())
cover_pixmap = PixmapWithDominantColor.fromImage(cover_img)
return cover_pixmap, QSize(lc.hover_expanded_width, lc.spine_height - si.reduce_height_by)
final_sz = (QSizeF(cover_pixmap.size()) / dpr).toSize()
return cover_pixmap, final_sz
def get_contrasting_text_color(self, background_color: QColor) -> QColor:
if not background_color or not background_color.isValid():