def trim_cover(self):
book_id = self.data.get('id')
if not book_id:
return
from calibre.utils.img import image_from_x, remove_borders_from_image
img = image_from_x(self.pixmap)
nimg = remove_borders_from_image(img)
if nimg is not img:
self.last_trim_id = book_id
self.last_trim_pixmap = self.pixmap
self.update_cover(QPixmap.fromImage(nimg))
def manual_trim_cover(self):
book_id = self.data.get('id')
if not book_id:
return
from calibre.gui2.dialogs.trim_image import TrimImage
from calibre.utils.img import image_to_data
cdata = image_to_data(image_from_x(self.pixmap), fmt='PNG', png_compression_level=1)
d = TrimImage(cdata, parent=self)
if d.exec() == QDialog.DialogCode.Accepted and d.image_data is not None:
self.last_trim_id = book_id
self.last_trim_pixmap = self.pixmap
self.update_cover(cdata=d.image_data)
def update_cover(self, pmap=None, cdata=None):
if pmap is None:
pmap = QPixmap()
pmap.loadFromData(cdata)
if pmap.isNull():
return
if pmap.hasAlphaChannel():
pmap = QPixmap.fromImage(blend_image(image_from_x(pmap)))
self.pixmap = pmap
self.do_layout()
self.update()
self.update_tooltip(getattr(self.parent(), 'current_path', ''))
if not config['disable_animations']:
self.animation.start()
id_ = self.data.get('id', None)
if id_ is not None:
self.cover_changed.emit(id_, cdata or pixmap_to_data(pmap))
def update_cover(self, pmap=None, cdata=None):
if pmap is None:
pmap = QPixmap()
pmap.loadFromData(cdata)
if pmap.isNull():
return
if pmap.hasAlphaChannel():
pmap = QPixmap.fromImage(blend_image(image_from_x(pmap)))
self.pixmap = pmap
self.do_layout()
self.update()
self.update_tooltip(getattr(self.parent(), 'current_path', ''))
if not config['disable_animations']:
self.animation.start()
id_ = self.data.get('id', None)
if id_ is not None:
self.cover_changed.emit(id_, cdata or pixmap_to_data(pmap))
