def newDBusMenuItem(action: DBusMenuAction, properties, children):
item = QDBusArgument()
item.beginStructure()
item.add(action.value, QMetaType.Int) # id
item.add(properties, QMetaType.QVariantMap)
item.add(children, QMetaType.QVariantList)
item.endStructure()
return item
def newDBusMenuItem(action: DBusMenuAction, properties, children):
item = QDBusArgument()
item.beginStructure()
item.add(action.value, QMetaType.Int) # id
item.add(properties, QMetaType.QVariantMap)
item.add(children, QMetaType.QVariantList)
item.endStructure()
return item
def GetGroupProperties(self, msg):
itemIds, propertyNames = msg.arguments()
result = QDBusArgument()
result.beginArray(GroupPropertyMetaType)
for itemId in itemIds:
result.beginStructure()
result.add(itemId, QMetaType.Int)
result.add(self._getItemProperty(itemId), QMetaType.QVariantMap)
result.endStructure()
result.endArray()
reply = msg.createReply([result])
return self.__sessionService.sessionBus.send(reply)
def GetGroupProperties(self, msg):
itemIds, propertyNames = msg.arguments()
result = QDBusArgument()
result.beginArray(GroupPropertyMetaType)
for itemId in itemIds:
result.beginStructure()
result.add(itemId, QMetaType.Int)
result.add(self._getItemProperty(itemId), QMetaType.QVariantMap)
result.endStructure()
result.endArray()
reply = msg.createReply([
result
])
return self.__sessionService.sessionBus.send(reply)
def _convert_image(self, qimage: QImage) -> Optional[QDBusArgument]:
"""Convert a QImage to the structure DBus expects.
https://specifications.freedesktop.org/notification-spec/latest/ar01s05.html#icons-and-images-formats
"""
bits_per_color = 8
has_alpha = qimage.hasAlphaChannel()
if has_alpha:
image_format = QImage.Format_RGBA8888
channel_count = 4
else:
image_format = QImage.Format_RGB888
channel_count = 3
qimage.convertTo(image_format)
bytes_per_line = qimage.bytesPerLine()
width = qimage.width()
height = qimage.height()
image_data = QDBusArgument()
image_data.beginStructure()
image_data.add(width)
image_data.add(height)
image_data.add(bytes_per_line)
image_data.add(has_alpha)
image_data.add(bits_per_color)
image_data.add(channel_count)
try:
size = qimage.sizeInBytes()
except TypeError:
# WORKAROUND for
# https://www.riverbankcomputing.com/pipermail/pyqt/2020-May/042919.html
# byteCount() is obsolete, but sizeInBytes() is only available with
# SIP >= 5.3.0.
size = qimage.byteCount()
# Despite the spec not mandating this, many notification daemons mandate that
# the last scanline does not have any padding bytes.
#
# Or in the words of dunst:
#
# The image is serialised rowwise pixel by pixel. The rows are aligned by a
# spacer full of garbage. The overall data length of data + garbage is
# called the rowstride.
#
# Mind the missing spacer at the last row.
#
# len: |<--------------rowstride---------------->|
# len: |<-width*pixelstride->|
# row 1: | data for row 1 | spacer of garbage |
# row 2: | data for row 2 | spacer of garbage |
# | . | spacer of garbage |
# | . | spacer of garbage |
# | . | spacer of garbage |
# row n-1: | data for row n-1 | spacer of garbage |
# row n: | data for row n |
#
# Source:
# https://github.com/dunst-project/dunst/blob/v1.6.1/src/icon.c#L292-L309
padding = bytes_per_line - width * channel_count
assert 0 <= padding <= 3, (padding, bytes_per_line, width,
channel_count)
size -= padding
if padding and self._quirks.no_padded_images:
return None
bits = qimage.constBits().asstring(size)
image_data.add(QByteArray(bits))
image_data.endStructure()
return image_data
