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#
# Copyright (C) from 2009 to Present EPAM Systems.
#
# This file is part of Indigo toolkit.
#
# 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.
import os
import platform
from ctypes import CDLL, POINTER, c_char_p, c_int
from . import IndigoException
class IndigoRenderer(object):
def __init__(self, indigo):
self.indigo = indigo
if (
os.name == "posix"
and not platform.mac_ver()[0]
and not platform.system().startswith("CYGWIN")
):
self._lib = CDLL(indigo.dllpath + "/libindigo-renderer.so")
elif os.name == "nt" or platform.system().startswith("CYGWIN"):
self._lib = CDLL(indigo.dllpath + "\indigo-renderer.dll")
elif platform.mac_ver()[0]:
self._lib = CDLL(indigo.dllpath + "/libindigo-renderer.dylib")
else:
raise IndigoException("unsupported OS: " + os.name)
self._lib.indigoRender.restype = c_int
self._lib.indigoRender.argtypes = [c_int, c_int]
self._lib.indigoRenderToFile.restype = c_int
self._lib.indigoRenderToFile.argtypes = [c_int, c_char_p]
self._lib.indigoRenderGrid.restype = c_int
self._lib.indigoRenderGrid.argtypes = [
c_int,
POINTER(c_int),
c_int,
c_int,
]
self._lib.indigoRenderGridToFile.restype = c_int
self._lib.indigoRenderGridToFile.argtypes = [
c_int,
POINTER(c_int),
c_int,
c_char_p,
]
self._lib.indigoRenderReset.restype = c_int
self._lib.indigoRenderReset.argtypes = [c_int]
def renderToBuffer(self, obj):
self.indigo._setSessionId()
wb = self.indigo.writeBuffer()
try:
self.indigo._checkResult(self._lib.indigoRender(obj.id, wb.id))
return wb.toBuffer()
finally:
wb.dispose()
def renderToFile(self, obj, filename):
self.indigo._setSessionId()
self.indigo._checkResult(
self._lib.indigoRenderToFile(obj.id, filename.encode("ascii"))
)
def renderGridToFile(self, objects, refatoms, ncolumns, filename):
self.indigo._setSessionId()
arr = None
if refatoms:
if len(refatoms) != objects.count():
raise IndigoException(
"renderGridToFile(): refatoms[] size must be equal to the number of objects"
)
arr = (c_int * len(refatoms))()
for i in range(len(refatoms)):
arr[i] = refatoms[i]
self.indigo._checkResult(
self._lib.indigoRenderGridToFile(
objects.id, arr, ncolumns, filename.encode("ascii")
)
)
def renderGridToBuffer(self, objects, refatoms, ncolumns):
self.indigo._setSessionId()
arr = None
if refatoms:
if len(refatoms) != objects.count():
raise IndigoException(
"renderGridToBuffer(): refatoms[] size must be equal to the number of objects"
)
arr = (c_int * len(refatoms))()
for i in range(len(refatoms)):
arr[i] = refatoms[i]
wb = self.indigo.writeBuffer()
try:
self.indigo._checkResult(
self._lib.indigoRenderGrid(objects.id, arr, ncolumns, wb.id)
)
return wb.toBuffer()
finally:
wb.dispose()
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