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This commit is contained in:
Kovid Goyal 2025-12-22 20:30:01 +05:30
parent 4b26278c56
commit ec736febe2
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 26 additions and 26 deletions
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52
src/calibre/gui2/library/bookshelf_view.py
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@ -318,6 +318,31 @@ def draw_pixmap_with_shadow(
shadow_painter.drawPixmap(margin, margin, pixmap)
shadow_painter.end()
return QPixmap.fromImage(shadow_image), margin
class CachedCoverRenderer:
def __init__(self, p: PixmapWithDominantColor) -> None:
self.pixmap = p
self.last_rendered_size = QSize()
self.last_rendered_opacity = -1
self.last_rendered_pixmap = QPixmap()
self.last_rendered_margin = 0
set_pixmap = __init__
def as_pixmap(self, size: QSize, opacity: float, parent: QWidget) -> tuple[QPixmap, int]:
if size == self.last_rendered_size and opacity == self.last_rendered_opacity:
return self.last_rendered_pixmap, self.last_rendered_margin
dpr = parent.devicePixelRatioF()
ss = (QSizeF(size) * dpr).toSize()
pmap = self.pixmap.scaled(ss, transformMode=Qt.TransformationMode.SmoothTransformation)
self.last_rendered_pixmap, self.last_rendered_margin = draw_pixmap_with_shadow(
pmap, has_shadow=gprefs['bookshelf_shadow'], fill_color=self.pixmap.dominant_color, opacity=opacity)
self.last_rendered_pixmap.setDevicePixelRatio(dpr)
self.last_rendered_margin = int(self.last_rendered_margin / dpr)
self.last_rendered_opacity = opacity
self.last_rendered_size = size
return self.last_rendered_pixmap, self.last_rendered_margin
# }}}
@ -697,31 +722,6 @@ class BookCase(QObject):
self.shelf_added.emit(self.items[-2], self.items[-1])
class CoverRenderer:
def __init__(self, p: PixmapWithDominantColor) -> None:
self.pixmap = p
self.last_rendered_size = QSize()
self.last_rendered_opacity = -1
self.last_rendered_pixmap = QPixmap()
self.last_rendered_margin = 0
set_pixmap = __init__
def as_pixmap(self, size: QSize, opacity: float, parent: QWidget) -> tuple[QPixmap, int]:
if size == self.last_rendered_size and opacity == self.last_rendered_opacity:
return self.last_rendered_pixmap, self.last_rendered_margin
dpr = parent.devicePixelRatioF()
ss = (QSizeF(size) * dpr).toSize()
pmap = self.pixmap.scaled(ss, transformMode=Qt.TransformationMode.SmoothTransformation)
self.last_rendered_pixmap, self.last_rendered_margin = draw_pixmap_with_shadow(
pmap, has_shadow=gprefs['bookshelf_shadow'], fill_color=self.pixmap.dominant_color, opacity=opacity)
self.last_rendered_pixmap.setDevicePixelRatio(dpr)
self.last_rendered_margin = int(self.last_rendered_margin / dpr)
self.last_rendered_opacity = opacity
self.last_rendered_size = size
return self.last_rendered_pixmap, self.last_rendered_margin
class ExpandedCover(QObject):
updated = pyqtSignal()
@ -734,7 +734,7 @@ class ExpandedCover(QObject):
self.shelf_item: ShelfItem | None = None
self.case_item: CaseItem | None = None
self.modified_case_item: CaseItem | None = None
self.cover_renderer: CoverRenderer = CoverRenderer(PixmapWithDominantColor())
self.cover_renderer: CachedCoverRenderer = CachedCoverRenderer(PixmapWithDominantColor())
self.opacity_animation = a = QPropertyAnimation(self, b'opacity')
a.setEasingCurve(QEasingCurve.Type.OutCubic)
a.setStartValue(0.3)