def imageForDomain(cls, url, allowNull=False):
'''
@param: url QUrl
@return: QIcon
'''
if not url.host():
if allowNull:
return QImage()
return cls.emptyWebImage()
with cls.instance()._iconCacheMutex:
for url0, img in cls.instance()._iconBuffer:
if url0.host() == url.host():
return img
# TODO: is it necessary to use escapeSqlGlobString
escapedHost = gVar.appTools.escapeSqlGlobString(url.host())
hostPattern = '*%s*' % escapedHost
icon = IconsDbModel.select().filter(
IconsDbModel.url.contains(hostPattern)).first()
img = QImage()
if icon:
img.loadFromData(icon.icon)
if not img.isNull():
return img
if not allowNull:
return cls.emptyWebImage()
return img
def render_cover(self, book_id):
if self.ignore_render_requests.is_set():
return
tcdata, timestamp = self.thumbnail_cache[book_id]
use_cache = False
if timestamp is None:
# Not in cache
has_cover, cdata, timestamp = self.model(
).db.new_api.cover_or_cache(book_id, 0)
else:
has_cover, cdata, timestamp = self.model(
).db.new_api.cover_or_cache(book_id, timestamp)
if has_cover and cdata is None:
# The cached cover is fresh
cdata = tcdata
use_cache = True
if has_cover:
p = QImage()
p.loadFromData(cdata, CACHE_FORMAT if cdata is tcdata else 'JPEG')
dpr = self.device_pixel_ratio
p.setDevicePixelRatio(dpr)
if p.isNull() and cdata is tcdata:
# Invalid image in cache
self.thumbnail_cache.invalidate((book_id, ))
self.update_item.emit(book_id)
return
cdata = None if p.isNull() else p
if not use_cache: # cache is stale
if cdata is not None:
width, height = p.width(), p.height()
scaled, nwidth, nheight = fit_image(
width, height,
int(dpr * self.delegate.cover_size.width()),
int(dpr * self.delegate.cover_size.height()))
if scaled:
if self.ignore_render_requests.is_set():
return
p = p.scaled(nwidth, nheight, Qt.IgnoreAspectRatio,
Qt.SmoothTransformation)
p.setDevicePixelRatio(dpr)
cdata = p
# update cache
if cdata is None:
self.thumbnail_cache.invalidate((book_id, ))
else:
try:
self.thumbnail_cache.insert(book_id, timestamp,
image_to_data(cdata))
except EncodeError as err:
self.thumbnail_cache.invalidate((book_id, ))
prints(err)
except Exception:
import traceback
traceback.print_exc()
elif tcdata is not None:
# Cover was removed, but it exists in cache, remove from cache
self.thumbnail_cache.invalidate((book_id, ))
self.delegate.cover_cache.set(book_id, cdata)
self.update_item.emit(book_id)
def render_cover(self, book_id):
if self.ignore_render_requests.is_set():
return
dpr = self.device_pixel_ratio
page_width = int(dpr * self.delegate.cover_size.width())
page_height = int(dpr * self.delegate.cover_size.height())
tcdata, timestamp = self.thumbnail_cache[book_id]
use_cache = False
if timestamp is None:
# Not in cache
has_cover, cdata, timestamp = self.model().db.new_api.cover_or_cache(book_id, 0)
else:
has_cover, cdata, timestamp = self.model().db.new_api.cover_or_cache(book_id, timestamp)
if has_cover and cdata is None:
# The cached cover is fresh
cdata = tcdata
use_cache = True
if has_cover:
p = QImage()
p.loadFromData(cdata, CACHE_FORMAT if cdata is tcdata else 'JPEG')
p.setDevicePixelRatio(dpr)
if p.isNull() and cdata is tcdata:
# Invalid image in cache
self.thumbnail_cache.invalidate((book_id,))
self.update_item.emit(book_id)
return
cdata = None if p.isNull() else p
if not use_cache: # cache is stale
if cdata is not None:
width, height = p.width(), p.height()
scaled, nwidth, nheight = fit_image(
width, height, page_width, page_height)
if scaled:
if self.ignore_render_requests.is_set():
return
p = p.scaled(nwidth, nheight, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
p.setDevicePixelRatio(dpr)
cdata = p
# update cache
if cdata is None:
self.thumbnail_cache.invalidate((book_id,))
else:
try:
self.thumbnail_cache.insert(book_id, timestamp, image_to_data(cdata))
except EncodeError as err:
self.thumbnail_cache.invalidate((book_id,))
prints(err)
except Exception:
import traceback
traceback.print_exc()
elif tcdata is not None:
# Cover was removed, but it exists in cache, remove from cache
self.thumbnail_cache.invalidate((book_id,))
self.delegate.cover_cache.set(book_id, cdata)
self.update_item.emit(book_id)
def processPendingDatagrams(self):
while self.udpSocket.hasPendingDatagrams():
datagram, host, port = self.udpSocket.readDatagram(
self.udpSocket.pendingDatagramSize())
buf = QBuffer()
b = buf.write(self.udpSocket.readAll())
buf.seek(buf.pos() - b)
image = QImage()
image.loadFromData(buf.buffer())
image.save(r"D:\test.png")
def get_pixmap_in_db(icon_id, icon_type='itemicons'):
if 'eq2localdb.sqlite' not in os.listdir():
print('Local database does not exists or broken, please keep the file "eq2localdb.sqlite" with application.')
return
icon_sql = sqlite3.connect('eq2localdb.sqlite')
icon_cmd = icon_sql.cursor().execute
try:
icon_byte = icon_cmd('SELECT icon FROM {} WHERE id=?'.format(icon_type), (icon_id,)).fetchall()[0][0]
except IndexError:
# print('The icon {} can not be found.'.format(icon_id))
icon_byte = icon_cmd('SELECT icon FROM eq2icon_reserve WHERE id=0').fetchall()[0][0]
img = QImage()
img.loadFromData(icon_byte)
icon_sql.close()
return QPixmap(img)
def run(self):
self.write_msg("IMG Handler stared!")
while not self._stopped:
buff = self.footage_socket.recv_string()
img = base64.b64decode(buff)
i = QImage()
i.loadFromData(img)
self._on_recive(i)
#npimg = np.fromstring(img, dtype=np.uint8)
#source = cv2.imdecode(npimg, 1)
#cv2.imshow("Stream", source)
#cv2.waitKey(1)
self.send_sock.send(b'ok')
self.write_msg("IMG Handler Stopped")
def scale_image(data, width=60, height=80, compression_quality=70, as_png=False, preserve_aspect_ratio=True):
''' Scale an image, returning it as either JPEG or PNG data (bytestring).
Transparency is alpha blended with white when converting to JPEG. Is thread
safe and does not require a QApplication. '''
# We use Qt instead of ImageMagick here because ImageMagick seems to use
# some kind of memory pool, causing memory consumption to sky rocket.
if isinstance(data, QImage):
img = data
else:
img = QImage()
if not img.loadFromData(data):
raise ValueError('Could not load image for thumbnail generation')
if preserve_aspect_ratio:
scaled, nwidth, nheight = fit_image(img.width(), img.height(), width, height)
if scaled:
img = img.scaled(nwidth, nheight, Qt.KeepAspectRatio, Qt.SmoothTransformation)
else:
if img.width() != width or img.height() != height:
img = img.scaled(width, height, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
if not as_png and img.hasAlphaChannel():
nimg = QImage(img.size(), QImage.Format_RGB32)
nimg.fill(Qt.white)
p = QPainter(nimg)
p.drawImage(0, 0, img)
p.end()
img = nimg
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
fmt = 'PNG' if as_png else 'JPEG'
if not img.save(buf, fmt, quality=compression_quality):
raise ValueError('Failed to export thumbnail image to: ' + fmt)
return img.width(), img.height(), ba.data()
def image_from_data(data):
if isinstance(data, QImage):
return data
i = QImage()
if not i.loadFromData(data):
raise ValueError('Not a valid image')
return i
def image_from_data(data):
' Create an image object from data, which should be a bytestring. '
if isinstance(data, QImage):
return data
i = QImage()
if not i.loadFromData(data):
raise NotImage('Not a valid image')
return i
def image_from_data(data):
' Create an image object from data, which should be a bytestring. '
if isinstance(data, QImage):
return data
i = QImage()
if not i.loadFromData(data):
raise NotImage('Not a valid image')
return i
def __call__(self, container):
from PyQt5.Qt import QImage
from calibre.gui2 import pixmap_to_data
ext = container.mime_map[self.name].split('/')[-1].upper()
if ext == 'JPG':
ext = 'JPEG'
if ext not in ('PNG', 'JPEG', 'GIF'):
return False
with container.open(self.name, 'r+b') as f:
raw = f.read()
i = QImage()
i.loadFromData(raw)
if i.isNull():
return False
raw = pixmap_to_data(i, format=ext, quality=95)
f.seek(0)
f.truncate()
f.write(raw)
return True
def to_png(bmp):
from PyQt5.Qt import QImage, QByteArray, QBuffer
i = QImage()
if not i.loadFromData(bmp):
raise ValueError('Invalid image data')
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
i.save(buf, 'png')
return ba.data()
def __call__(self, container):
from PyQt5.Qt import QImage
from calibre.gui2 import pixmap_to_data
ext = container.mime_map[self.name].split('/')[-1].upper()
if ext == 'JPG':
ext = 'JPEG'
if ext not in ('PNG', 'JPEG', 'GIF'):
return False
with container.open(self.name, 'r+b') as f:
raw = f.read()
i = QImage()
i.loadFromData(raw)
if i.isNull():
return False
raw = pixmap_to_data(i, format=ext, quality=95)
f.seek(0)
f.truncate()
f.write(raw)
return True
def to_png(bmp):
from PyQt5.Qt import QImage, QByteArray, QBuffer
i = QImage()
if not i.loadFromData(bmp):
raise ValueError('Invalid image data')
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
i.save(buf, 'png')
return bytes(ba.data())
def imageForUrl(cls, url, allowNull=False):
'''
@param: url QUrl
@return: QImage
'''
if not url.path():
return allowNull and QImage() or cls.emptyWebImage()
with cls.instance()._iconCacheMutex:
encUrl = encodeUrl(url)
# find in urlImageCache
img = cls.instance()._urlImageCache.get(encUrl, None)
if img:
if not img.isNull():
return img
if not allowNull:
return cls.emptyWebImage()
return img
# find from icon buffer
for url0, img in cls.instance()._iconBuffer:
if encodeUrl(url0) == encUrl:
return img
# TODO: is it necessary to use escapeSqlGlobString
escapedUrl = gVar.appTools.escapeSqlGlobString(
encUrl.data().decode())
urlPattern = '%s*' % escapedUrl
icon = IconsDbModel.select().filter(
IconsDbModel.url.contains(urlPattern)).first()
img = QImage()
if icon:
img.loadFromData(icon.icon)
cls.instance()._urlImageCache[encUrl] = img
if not img.isNull():
return img
if not allowNull:
return cls.emptyWebImage()
return img
def dropEvent(self, event):
event.setDropAction(Qt.CopyAction)
md = event.mimeData()
x, y = dnd_get_image(md)
if x is not None:
# We have an image, set cover
event.accept()
if y is None:
# Local image
self.undo_stack.push(Replace(x.toImage(), _('Drop image'), self))
else:
d = DownloadDialog(x, y, self.gui)
d.start_download()
if d.err is None:
with open(d.fpath, 'rb') as f:
img = QImage()
img.loadFromData(f.read())
if not img.isNull():
self.undo_stack.push(Replace(img, _('Drop image'), self))
event.accept()
def dropEvent(self, event):
event.setDropAction(Qt.CopyAction)
md = event.mimeData()
x, y = dnd_get_image(md)
if x is not None:
# We have an image, set cover
event.accept()
if y is None:
# Local image
self.undo_stack.push(Replace(x.toImage(), _('Drop image'), self))
else:
d = DownloadDialog(x, y, self.gui)
d.start_download()
if d.err is None:
with open(d.fpath, 'rb') as f:
img = QImage()
img.loadFromData(f.read())
if not img.isNull():
self.undo_stack.push(Replace(img, _('Drop image'), self))
event.accept()
def to_png(bmp):
# ImageMagick does not convert some bmp files correctly, while Qt does,
# so try Qt first. See for instance:
# https://bugs.launchpad.net/calibre/+bug/934167
# ImageMagick bug report:
# http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=20350
from PyQt5.Qt import QImage, QByteArray, QBuffer
i = QImage()
if i.loadFromData(bmp):
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
i.save(buf, 'png')
return bytes(ba.data())
from calibre.utils.magick import Image
img = Image()
img.load(bmp)
return img.export('png')
def to_png(bmp):
# ImageMagick does not convert some bmp files correctly, while Qt does,
# so try Qt first. See for instance:
# https://bugs.launchpad.net/calibre/+bug/934167
# ImageMagick bug report:
# http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=20350
from PyQt5.Qt import QImage, QByteArray, QBuffer
i = QImage()
if i.loadFromData(bmp):
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
i.save(buf, 'png')
return bytes(ba.data())
from calibre.utils.magick import Image
img = Image()
img.load(bmp)
return img.export('png')
def scale_image(data,
width=60,
height=80,
compression_quality=70,
as_png=False,
preserve_aspect_ratio=True):
''' Scale an image, returning it as either JPEG or PNG data (bytestring).
Transparency is alpha blended with white when converting to JPEG. Is thread
safe and does not require a QApplication. '''
# We use Qt instead of ImageMagick here because ImageMagick seems to use
# some kind of memory pool, causing memory consumption to sky rocket.
if isinstance(data, QImage):
img = data
else:
img = QImage()
if not img.loadFromData(data):
raise ValueError('Could not load image for thumbnail generation')
if preserve_aspect_ratio:
scaled, nwidth, nheight = fit_image(img.width(), img.height(), width,
height)
if scaled:
img = img.scaled(nwidth, nheight, Qt.KeepAspectRatio,
Qt.SmoothTransformation)
else:
if img.width() != width or img.height() != height:
img = img.scaled(width, height, Qt.IgnoreAspectRatio,
Qt.SmoothTransformation)
if not as_png and img.hasAlphaChannel():
nimg = QImage(img.size(), QImage.Format_RGB32)
nimg.fill(Qt.white)
p = QPainter(nimg)
p.drawImage(0, 0, img)
p.end()
img = nimg
ba = QByteArray()
buf = QBuffer(ba)
buf.open(QBuffer.WriteOnly)
fmt = 'PNG' if as_png else 'JPEG'
if not img.save(buf, fmt, quality=compression_quality):
raise ValueError('Failed to export thumbnail image to: ' + fmt)
return img.width(), img.height(), ba.data()
def image_from_data(data):
i = QImage()
if not i.loadFromData(data):
raise ValueError('Not a valid image')
return i
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(
size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(),
self.MISMATCH_COLOR)
m_painter.drawImage(border_width, border_width, m_image)
else:
m_image = m_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(), m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
def image_from_data(data):
i = QImage()
if not i.loadFromData(data):
raise ValueError('Not a valid image')
return i
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(), self.MISMATCH_COLOR)
m_painter.drawImage(border_width,
border_width,
m_image)
else:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(),
m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
def _populate_covers(self):
'''
Display calibre cover for both unless mismatch
'''
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(), self.MISMATCH_COLOR)
m_painter.drawImage(border_width,
border_width,
m_image)
else:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(),
m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
self.calibre_cover.setMaximumSize(QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.calibre_cover.setText('')
self.calibre_cover.setScaledContents(False)
self.marvin_cover.setMaximumSize(QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.marvin_cover.setText('')
self.marvin_cover.setScaledContents(False)
if self.cid:
db = self.opts.gui.current_db
if 'cover_hash' not in self.mismatches:
mi = db.get_metadata(self.cid, index_is_id=True, get_cover=True, cover_as_data=True)
c_image = QImage()
if mi.has_cover:
c_image.loadFromData(mi.cover_data[1])
c_image = c_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.c_pixmap = QPixmap(QSize(c_image.width(),
c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.drawImage(0, 0, c_image)
else:
c_image.load(I('book.png'))
c_image = c_image.scaledToWidth(135,
Qt.SmoothTransformation)
# Construct a QPixmap with dialog background
self.c_pixmap = QPixmap(
QSize(c_image.width(),
c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
bgcolor = self.palette().color(QPalette.Background)
c_painter.fillRect(self.c_pixmap.rect(), bgcolor)
c_painter.drawImage(0, 0, c_image)
# Set calibre cover
self.calibre_cover.setPixmap(self.c_pixmap)
if self.opts.prefs.get('development_mode', False):
# Show individual covers
_fetch_marvin_cover()
else:
# Show calibre cover on both sides
self.marvin_cover.setPixmap(self.c_pixmap)
else:
# Covers don't match - render with border
# Construct a QImage with the cover sized to fit inside border
c_image = QImage()
cdata = db.cover(self.cid, index_is_id=True)
if cdata is None:
c_image.load(I('book.png'))
self.calibre_cover.setScaledContents(True)
else:
c_image.loadFromData(cdata)
c_image = c_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.c_pixmap = QPixmap(
QSize(c_image.width() + self.BORDER_WIDTH * 2,
c_image.height() + self.BORDER_WIDTH * 2))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.fillRect(self.c_pixmap.rect(),self.MISMATCH_COLOR)
c_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH, c_image)
self.calibre_cover.setPixmap(self.c_pixmap)
# Render Marvin cover with small border if different covers,
# large cover if no cover hash (loaded via OPDS)
border_width = self.BORDER_WIDTH
if self.mismatches['cover_hash']['Marvin'] is None:
border_width = self.BORDER_WIDTH * 3
_fetch_marvin_cover(border_width=border_width)
else:
_fetch_marvin_cover()
def rescale(self):
from calibre.utils.magick.draw import Image
is_image_collection = getattr(self.opts, 'is_image_collection', False)
if is_image_collection:
page_width, page_height = self.opts.dest.comic_screen_size
else:
page_width, page_height = self.opts.dest.width, self.opts.dest.height
page_width -= (self.opts.margin_left +
self.opts.margin_right) * self.opts.dest.dpi / 72.
page_height -= (self.opts.margin_top +
self.opts.margin_bottom) * self.opts.dest.dpi / 72.
for item in self.oeb.manifest:
if item.media_type.startswith('image'):
ext = item.media_type.split('/')[-1].upper()
if ext == 'JPG':
ext = 'JPEG'
if ext not in ('PNG', 'JPEG', 'GIF'):
ext = 'JPEG'
raw = item.data
if hasattr(raw, 'xpath') or not raw:
# Probably an svg image
continue
try:
img = Image()
img.load(raw)
except:
continue
width, height = img.size
try:
if self.check_colorspaces and img.colorspace == 'CMYKColorspace':
# We cannot do an imagemagick conversion of CMYK to RGB as
# ImageMagick inverts colors if you just set the colorspace
# to rgb. See for example: https://bugs.launchpad.net/bugs/1246710
from PyQt5.Qt import QImage
from calibre.gui2 import pixmap_to_data
qimg = QImage()
qimg.loadFromData(raw)
if not qimg.isNull():
raw = item.data = pixmap_to_data(qimg,
format=ext,
quality=95)
img = Image()
img.load(raw)
self.log.warn(
'The image %s is in the CMYK colorspace, converting it '
'to RGB as Adobe Digital Editions cannot display CMYK'
% item.href)
else:
self.log.warn(
'The image %s is in the CMYK colorspace, you should convert'
' it to sRGB as Adobe Digital Editions cannot render CMYK'
% item.href)
except Exception:
pass
scaled, new_width, new_height = fit_image(
width, height, page_width, page_height)
if scaled:
new_width = max(1, new_width)
new_height = max(1, new_height)
self.log(
'Rescaling image from %dx%d to %dx%d' %
(width, height, new_width, new_height), item.href)
try:
img.size = (new_width, new_height)
data = img.export(ext.lower())
except KeyboardInterrupt:
raise
except:
self.log.exception('Failed to rescale image')
else:
item.data = data
item.unload_data_from_memory()
def rescale(self):
from calibre.utils.magick.draw import Image
is_image_collection = getattr(self.opts, 'is_image_collection', False)
if is_image_collection:
page_width, page_height = self.opts.dest.comic_screen_size
else:
page_width, page_height = self.opts.dest.width, self.opts.dest.height
page_width -= (self.opts.margin_left + self.opts.margin_right) * self.opts.dest.dpi/72.
page_height -= (self.opts.margin_top + self.opts.margin_bottom) * self.opts.dest.dpi/72.
for item in self.oeb.manifest:
if item.media_type.startswith('image'):
ext = item.media_type.split('/')[-1].upper()
if ext == 'JPG':
ext = 'JPEG'
if ext not in ('PNG', 'JPEG', 'GIF'):
ext = 'JPEG'
raw = item.data
if hasattr(raw, 'xpath') or not raw:
# Probably an svg image
continue
try:
img = Image()
img.load(raw)
except:
continue
width, height = img.size
try:
if self.check_colorspaces and img.colorspace == 'CMYKColorspace':
# We cannot do an imagemagick conversion of CMYK to RGB as
# ImageMagick inverts colors if you just set the colorspace
# to rgb. See for example: https://bugs.launchpad.net/bugs/1246710
from PyQt5.Qt import QImage
from calibre.gui2 import pixmap_to_data
qimg = QImage()
qimg.loadFromData(raw)
if not qimg.isNull():
raw = item.data = pixmap_to_data(qimg, format=ext, quality=95)
img = Image()
img.load(raw)
self.log.warn(
'The image %s is in the CMYK colorspace, converting it '
'to RGB as Adobe Digital Editions cannot display CMYK' % item.href)
else:
self.log.warn(
'The image %s is in the CMYK colorspace, you should convert'
' it to sRGB as Adobe Digital Editions cannot render CMYK' % item.href)
except Exception:
pass
scaled, new_width, new_height = fit_image(width, height,
page_width, page_height)
if scaled:
new_width = max(1, new_width)
new_height = max(1, new_height)
self.log('Rescaling image from %dx%d to %dx%d'%(
width, height, new_width, new_height), item.href)
try:
img.size = (new_width, new_height)
data = img.export(ext.lower())
except KeyboardInterrupt:
raise
except:
self.log.exception('Failed to rescale image')
else:
item.data = data
item.unload_data_from_memory()
def _populate_covers(self):
'''
Display calibre cover for both unless mismatch
'''
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(
size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(),
self.MISMATCH_COLOR)
m_painter.drawImage(border_width, border_width, m_image)
else:
m_image = m_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(), m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
self.calibre_cover.setMaximumSize(
QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.calibre_cover.setText('')
self.calibre_cover.setScaledContents(False)
self.marvin_cover.setMaximumSize(
QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.marvin_cover.setText('')
self.marvin_cover.setScaledContents(False)
if self.cid:
db = self.opts.gui.current_db
if 'cover_hash' not in self.mismatches:
mi = db.get_metadata(self.cid,
index_is_id=True,
get_cover=True,
cover_as_data=True)
c_image = QImage()
if mi.has_cover:
c_image.loadFromData(mi.cover_data[1])
c_image = c_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.c_pixmap = QPixmap(
QSize(c_image.width(), c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.drawImage(0, 0, c_image)
else:
c_image.load(I('book.png'))
c_image = c_image.scaledToWidth(135,
Qt.SmoothTransformation)
# Construct a QPixmap with dialog background
self.c_pixmap = QPixmap(
QSize(c_image.width(), c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
bgcolor = self.palette().color(QPalette.Background)
c_painter.fillRect(self.c_pixmap.rect(), bgcolor)
c_painter.drawImage(0, 0, c_image)
# Set calibre cover
self.calibre_cover.setPixmap(self.c_pixmap)
if self.opts.prefs.get('development_mode', False):
# Show individual covers
_fetch_marvin_cover()
else:
# Show calibre cover on both sides
self.marvin_cover.setPixmap(self.c_pixmap)
else:
# Covers don't match - render with border
# Construct a QImage with the cover sized to fit inside border
c_image = QImage()
cdata = db.cover(self.cid, index_is_id=True)
if cdata is None:
c_image.load(I('book.png'))
self.calibre_cover.setScaledContents(True)
else:
c_image.loadFromData(cdata)
c_image = c_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.c_pixmap = QPixmap(
QSize(c_image.width() + self.BORDER_WIDTH * 2,
c_image.height() + self.BORDER_WIDTH * 2))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.fillRect(self.c_pixmap.rect(), self.MISMATCH_COLOR)
c_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH,
c_image)
self.calibre_cover.setPixmap(self.c_pixmap)
# Render Marvin cover with small border if different covers,
# large cover if no cover hash (loaded via OPDS)
border_width = self.BORDER_WIDTH
if self.mismatches['cover_hash']['Marvin'] is None:
border_width = self.BORDER_WIDTH * 3
_fetch_marvin_cover(border_width=border_width)
else:
_fetch_marvin_cover()