##############################################################################
# Copyright Kitware Inc.
#
# Licensed under the Apache License, Version 2.0 ( the "License" );
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
##############################################################################
from importlib.metadata import PackageNotFoundError
from importlib.metadata import version as _importlib_version
from large_image.constants import SourcePriority
from large_image.tilesource import TileSource
try:
__version__ = _importlib_version(__name__)
except PackageNotFoundError:
# package is not installed
pass
[docs]
class DummyTileSource(TileSource):
name = 'dummy'
extensions = {
None: SourcePriority.MANUAL,
}
def __init__(self, *args, **kwargs):
super().__init__()
self.tileWidth = 0
self.tileHeight = 0
self.levels = 0
self.sizeX = 0
self.sizeY = 0
[docs]
@classmethod
def canRead(cls, *args, **kwargs):
return True
[docs]
def getTile(self, x, y, z, **kwargs):
return b''
[docs]
def open(*args, **kwargs):
"""
Create an instance of the module class.
"""
return DummyTileSource(*args, **kwargs)
[docs]
def canRead(*args, **kwargs):
"""
Check if an input can be read by the module class.
"""
return DummyTileSource.canRead(*args, **kwargs)