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FileopeningFunctions.py
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FileopeningFunctions.py
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import h5py
from PIL import Image
from os.path import getsize
class FileopeningFunctions:
def __init__(self):
self.fileType = "NULL"
self.numFrames = 1
self.height = 0
self.width = 0
self.offset = 0
self.alwaysAskBoolean = 0
self.isBSL = 0
self.stride = 0
self.orientation = 1
self.mode = "1"
self.specificMode = "1"
self.fileSize = 0
def Setup(self, filetypesetup, numframessetup, modesetup, specificModesetup, heightsetup, widthsetup, offsetsetup, alwaysaskbooleansetup, isbslsetup, stridesetup, orientationsetup):
self.fileType = filetypesetup
self.numFrames = numframessetup
self.mode = modesetup
self.specificMode = specificModesetup
self.height = heightsetup
self.width = widthsetup
self.offset = offsetsetup
self.alwaysAskBoolean = alwaysaskbooleansetup
self.isBSL = isbslsetup
self.stride = stridesetup
self.orientation = orientationsetup
def Open(self, filepath):
"""openedfile = open(self.filePath, "rb")
openedfile.seek(self.offset)
filestring = openedfile.read()
openedfile.close()
self.image = Image.fromstring(self.mode, (self.width, self.height), filestring, "raw", self.specificMode, self.stride, self.orientation)"""
fileSplit = filepath.split(".")
fileExtension = fileSplit[-1]
self.fileSize = int(getsize(filepath))
# For testing purposes only!!!
if fileExtension == "swig":
openedfile = open(filepath, "rb")
openedfile.seek(0)
filestring = openedfile.read()
openedfile.close()
self.fileType = "SWIG"
self.height = 512
self.width = 512
self.stride = 0
self.orientation = 1
self.mode = "F"
self.specificMode = "F;32"
self.numFrames = 1
self.image = Image.fromstring(self.mode, (self.width, self.height), filestring, "raw")
# Standard filetypes that you might find around...
if fileExtension == "bmp":
self.image = Image.open(filepath)
self.numFrames = 1
elif fileExtension == "gif":
self.image = Image.open(filepath)
self.numFrames = 1
elif fileExtension == "jpg":
self.image = Image.open(filepath)
self.numFrames = 1
elif fileExtension == "jpeg":
self.image = Image.open(filepath)
self.numFrames = 1
elif fileExtension == "png":
self.image = Image.open(filepath)
self.numFrames = 1
elif fileExtension == "tif":
self.image = Image.open(filepath)
dimensions = self.image.size
self.width = dimensions[0]
self.height = dimensions[1]
self.numFrames = 1
elif fileExtension == "tiff":
self.image = Image.open(filepath)
dimensions = self.image.size
self.width = dimensions[0]
self.height = dimensions[1]
self.numFrames = 1
# More specialised file formats from X-Ray sources
elif fileExtension == "cbf":
self.CbfFileOpener()
elif fileExtension == "ccd":
self.CcdFileOpener()
elif fileExtension == "edf":
self.EdfFileOpener()
elif fileExtension == "gfrm":
self.GfrmFileOpener()
elif fileExtension == "img":
self.ImgFileOpener()
elif fileExtension == "h5":
self.HD5FileOpener(filepath)
else:
fileAccepted = 0
fileAccepted = self.BslFileOpener()
if fileAccepted == 0:
self.ManualFileOpener()
def GfrmFileOpener(self):
# Either opens file or passes on to next option
# Set up some data first
self.bitDepth = int(round((self.fileSize * 8) / 4194304))
self.height = 2048
self.width = 2048
self.stride = 0
self.orientation = 1
self.numFrames = 1
if self.bitDepth == 8:
self.offset = 1536
self.numFrames = 1
self.littleEndianBoolean = 1
self.mode = "1"
self.specificMode = "1"
if self.bitDepth == 16:
self.offset = 3584
self.frames = 1
self.littleEndianBoolean = 1
self.mode = "F"
self.specificMode = "F16"
self.fileType = "gfrm"
openedfile = open(filepath, "rb")
openedfile.seek(self.offset)
filestring = openedfile.read()
openedfile.close()
self.image = Image.fromstring(self.mode, (self.width, self.height), filestring, "raw", self.specificMode, self.stride, self.orientation)
def ImgFileOpener(self):
# Dealing with files ending in .img
# .img files are assumed to have 1024x1024 pixels, hence the division by 1048576
self.bitDepth = int(round((self.fileSize * 8) / 1048576))
height = 1024
width = 1024
self.stride = 0
self.orientation = 1
self.numFrames = 1
if self.bitDepth == 16:
self.offset = 4096
self.frames = 1
self.littleEndianBoolean = 1
self.mode = "F"
self.specificMode = "F16"
self.fileType = "img"
openedfile = open(filepath, "rb")
openedfile.seek(self.offset)
filestring = openedfile.read()
openedfile.close()
self.image = Image.fromstring(self.mode, (self.width, self.height), filestring, "raw", self.specificMode, self.stride, self.orientation)
def EdfFileOpener(self):
self.height = 2048
self.width = 2048
self.bitDepth = 16
self.offset = 3072
self.numFrames = 1
self.littleEndianBoolean = 1
self.mode = "F"
self.specificMode = "F16"
self.stride = 0
self.orientation = 1
self.fileType = "edf"
openedfile = open(filepath, "rb")
openedfile.seek(self.offset)
filestring = openedfile.read()
openedfile.close()
self.image = Image.fromstring(self.mode, (self.width, self.height), filestring, "raw", self.specificMode, self.stride, self.orientation)
def CbfFileOpener(self):
# This function needs work, I need a sample file to extract all the details
# So for now let's just display a warning that this isn't yet working but it's around...
import tkMessageBox
tkMessageBox.showwarning("Needs Work Here!", "This function CbfFileOpener in FileopeningFunctions.py needs to be finished by testing with a CBF file")
"""
# Set up some data first
fileAccepted = 0
fileData = File.openAsRawString(filePath)
fileLines = split(fileData, "\n")
tempArray = split(fileLines[32], " ")
endianString = tempArray[1]
tempArray = split(fileLines[35], " ")
width = parseFloat(tempArray[1])
tempArray = split(fileLines[36], " ")
height = parseFloat(tempArray[1])
tempArray = split(fileLines[37], " ")
offset = parseFloat(tempArray[1])
if endianString == "LITTLE_ENDIAN":
self.littleEndianBoolean = 1
else:
littleEndianBoolean = 0
stringBitDepth="[8-bit]"
self.bitDepth = 8
self.frames = 1
self.fileType = "cbf"
fileAccepted = 1
return fileAccepted
"""
def CcdFileOpener(self):
# This function needs work, I need a sample file to extract all the details
# So for now let's just display a warning that this isn't yet working but it's around...
import tkMessageBox
tkMessageBox.showwarning("Needs Work Here!", "This function CcdFileOpener in FileopeningFunctions.py needs to be finished by testing with a CCD file")
"""
fileString = File.openAsRawString(filePath)
fileArray = split(fileString, "\n")
temporaryDataArray = split(fileArray[3], " ")
headerByteSize = temporaryDataArray[2]
temporaryDataArray = split(fileArray[4], " ")
littleEndianString = temporaryDataArray[2]
if (littleEndianString == "HighByteFirst") {
littleEndianBoolean = 0
}
else {
littleEndianBoolean = 1
}
temporaryDataArray = split(fileArray[6], " ")
fileWidth = temporaryDataArray[2]
temporaryDataArray = split(fileArray[7], " ")
fileHeight = temporaryDataArray[2]
if (littleEndianBoolean == 1) {
rawParameterString = "open=["+filePath+"] image=[32-bit Unsigned] width="+ fileWidth +" height="+ fileHeight +" offset="+ headerByteSize +" number=1 gap=0 little-endian"
}
else {
rawParameterString = "open=["+filePath+"] image=[32-bit Unsigned] width="+ fileWidth +" height="+ fileHeight +" offset="+ headerByteSize +" number=1 gap=0"
}
return fileAccepted
"""
def HD5FileOpener(self, filepath):
f = h5py.File(filepath, "r")
imageDataArray = f["entry/instrument/detector/data"]
self.height = len(imageDataArray[0][0])
self.width = len(imageDataArray[0][0][0])
self.stride = 0
self.orientation = 1
self.mode = "F"
self.specificMode = "F;32S"
self.numFrames = 1
self.offset = 0
self.numFrames = 1
fileString = ""
counter1 = 0
counter2 = 0
print fileString
self.image = Image.fromstring(self.mode, (self.width, self.height), imageDataArray[0][0].tostring(), "raw", self.specificMode, self.stride, self.orientation)
def BslFileOpener(self):
pass
def ManualFileOpener(self):
pass