def getDngProfileDict(filename):
"""
Read profile related tags from a dng or dcp file.
Return a dictionary of (str) decoded {tagname : tagvalue} pairs.
@param filename:
@type filename: str
@return: dictionary
@rtype: dict
"""
with exiftool.ExifTool() as e:
profileDict = e.readBinaryDataAsDict(filename,
taglist=['LinearizationTable',
'ProfileLookTableData',
'ProfileLookTableDims',
'ProfileLookTableEncoding',
'ProfileToneCurve',
'CalibrationIlluminant1',
'CalibrationIlluminant2',
'ColorMatrix1',
'ColorMatrix2',
'CameraCalibration1',
'CameraCalibration2',
'ForwardMatrix1',
'ForwardMatrix2',
'AnalogBalance'
])
return profileDict
def setRating(self, action):
# rating : the tag is written into the .mie file; the file is
# created if needed.
listWdg = self.listWdg
sel = listWdg.selectedItems()
if action.text() in ['0', '1', '2', '3', '4', '5']:
with exiftool.ExifTool() as e:
value = int(action.text())
for item in sel:
filename = item.data(Qt.UserRole)[0]
e.writeXMPTag(filename, 'XMP:rating', value)
item.setText(basename(filename) + '\n' + ''.join(['*'] * value))
def contextMenuHandler(action):
global isSuspended
if action.text() == 'Pause':
isSuspended = True
# quit full screen mode
newWin.showMaximized()
elif action.text() == 'Full Screen':
if action.isChecked():
newWin.showFullScreen()
else:
newWin.showMaximized()
elif action.text() == 'Resume':
newWin.close()
isSuspended = False
playDiaporama(diaporamaGenerator, parent=window)
# rating : the tag is written into the .mie file; the file is
# created if needed.
elif action.text() in ['0', '1', '2', '3', '4', '5']:
with exiftool.ExifTool() as e:
e.writeXMPTag(name, 'XMP:rating', int(action.text()))
def playDiaporama(diaporamaGenerator, parent=None):
"""
Open a new window and play a slide show.
@param diaporamaGenerator: generator for file names
@type diaporamaGenerator: iterator object
@param parent:
@type parent:
"""
global isSuspended
isSuspended = False
# init diaporama window
newWin = QMainWindow(parent)
newWin.setAttribute(Qt.WA_DeleteOnClose)
newWin.setContextMenuPolicy(Qt.CustomContextMenu)
newWin.setWindowTitle(parent.tr('Slide show'))
label = imageLabel(mainForm=parent)
label.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
label.img = None
newWin.setCentralWidget(label)
newWin.showFullScreen()
# Pause key shortcut
actionEsc = QAction('Pause', None)
actionEsc.setShortcut(QKeySequence(Qt.Key_Escape))
newWin.addAction(actionEsc)
# context menu event handler
def contextMenuHandler(action):
global isSuspended
if action.text() == 'Pause':
isSuspended = True
# quit full screen mode
newWin.showMaximized()
elif action.text() == 'Full Screen':
if action.isChecked():
newWin.showFullScreen()
else:
newWin.showMaximized()
elif action.text() == 'Resume':
newWin.close()
isSuspended = False
playDiaporama(diaporamaGenerator, parent=window)
# rating : the tag is written into the .mie file; the file is
# created if needed.
elif action.text() in ['0', '1', '2', '3', '4', '5']:
with exiftool.ExifTool() as e:
e.writeXMPTag(name, 'XMP:rating', int(action.text()))
# connect shortkey action
actionEsc.triggered.connect(
lambda checked=False, name=actionEsc: contextMenuHandler(
name)) # named arg checked is sent
# context menu
def contextMenu(position):
menu = QMenu()
actionEsc.setEnabled(not isSuspended)
action2 = QAction('Full Screen', None)
action2.setCheckable(True)
action2.setChecked(newWin.windowState() & Qt.WindowFullScreen)
action3 = QAction('Resume', None)
action3.setEnabled(isSuspended)
for action in [actionEsc, action2, action3]:
menu.addAction(action)
action.triggered.connect(
lambda checked=False, name=action: contextMenuHandler(
name)) # named arg checked is sent
subMenuRating = menu.addMenu('Rating')
for i in range(6):
action = QAction(str(i), None)
subMenuRating.addAction(action)
action.triggered.connect(
lambda checked=False, name=action: contextMenuHandler(
name)) # named arg checked is sent
menu.exec_(position)
# connect contextMenuRequested
newWin.customContextMenuRequested.connect(contextMenu)
newWin.setToolTip("Esc to exit full screen mode")
newWin.setWhatsThis(""" <b>Slide Show</b><br>
The slide show cycles through the starting directory and its subfolders to display images.
Photos rated 0 or 1 star are not shown (by default, all photos are rated 5 stars).<br>
Hit the Esc key to <b>exit full screen mode and pause.</b><br> Use the Context Menu for <b>rating and resuming.</b>
The rating is saved in the .mie sidecar and the image file is not modified.
""") # end of setWhatsThis
# play diaporama
window.modeDiaporama = True
while True:
if isSuspended:
newWin.setWindowTitle(newWin.windowTitle() + ' Paused')
break
try:
if not newWin.isVisible():
break
name = next(diaporamaGenerator)
# search rating in metadata
rating = 5 # default
with exiftool.ExifTool() as e:
try:
rt = e.readXMPTag(
name,
'XMP:rating') # raise ValueError if sidecar not found
r = search("\d", rt)
if r is not None:
rating = int(r.group(0))
except ValueError:
rating = 5
# don't display image with low rating
if rating < 2:
app.processEvents()
imImg = imImage.loadImageFromFile(name,
createsidecar=False,
cmsConfigure=True,
window=window)
# zoom might be modified by the mouse wheel : remember
if label.img is not None:
imImg.Zoom_coeff = label.img.Zoom_coeff
coeff = imImg.resize_coeff(label)
imImg.yOffset -= (imImg.height() * coeff - label.height()) / 2.0
imImg.xOffset -= (imImg.width() * coeff - label.width()) / 2.0
app.processEvents()
if isSuspended:
newWin.setWindowTitle(newWin.windowTitle() + ' Paused')
break
newWin.setWindowTitle(
parent.tr('Slide show') + ' ' + name + ' ' +
' '.join(['*'] * imImg.meta.rating))
gc.collect()
label.img = imImg
label.repaint()
app.processEvents()
gc.collect()
sleep(2)
app.processEvents()
except StopIteration:
newWin.close()
window.diaporamaGenerator = None
break
except ValueError:
continue
except RuntimeError:
window.diaporamaGenerator = None
break
except:
window.diaporamaGenerator = None
window.modeDiaporama = False
raise
app.processEvents()
window.modeDiaporama = False
def run(self):
# next() raises a StopIteration exception when the generator ends.
# If this exception is unhandled by run(), it causes thread termination.
# If wdg internal C++ object was destroyed by main thread (form closing)
# a RuntimeError exception is raised and causes thread termination too.
# Thus, no further synchronization is needed.
from bLUeTop import exiftool
with exiftool.ExifTool() as e:
while True:
try:
filename = next(self.fileListGen)
# get orientation
try:
# read metadata from sidecar (.mie) if it exists, otherwise from image file.
profile, metadata = e.get_metadata(
filename,
tags=("colorspace", "profileDescription",
"orientation", "model", "rating",
"FileCreateDate"),
createsidecar=False)
except ValueError:
metadata = {}
# get image info
tmp = [
value for key, value in metadata.items()
if 'orientation' in key.lower()
]
orientation = tmp[
0] if tmp else 1 # metadata.get("EXIF:Orientation", 1)
# EXIF:DateTimeOriginal seems to be missing in many files
tmp = [
value for key, value in metadata.items()
if 'date' in key.lower()
]
date = tmp[
0] if tmp else '' # metadata.get("EXIF:ModifyDate", '')
tmp = [
value for key, value in metadata.items()
if 'rating' in key.lower()
]
rating = tmp[
0] if tmp else 0 # metadata.get("XMP:Rating", 5)
rating = ''.join(['*'] * int(rating))
transformation = exiftool.decodeExifOrientation(
orientation)
# get thumbnail
img = e.get_thumbNail(filename, thumbname='thumbnailimage')
# no thumbnail found : try preview
if img.isNull():
img = e.get_thumbNail(
filename, thumbname='PreviewImage'
) # the order is important : for jpeg PreviewImage is full sized !
# all failed : open image
if img.isNull():
img = QImage(filename)
# remove possible black borders, except for .NEF
if filename[-3:] not in ['nef', 'NEF']:
bBorder = 7
img = img.copy(
QRect(0, bBorder, img.width(),
img.height() - 2 * bBorder))
pxm = QPixmap.fromImage(img)
if not transformation.isIdentity():
pxm = pxm.transformed(transformation)
# set item caption and tooltip
item = QListWidgetItem(
QIcon(pxm), basename(filename)) # + '\n' + rating)
item.setToolTip(
basename(filename) + ' ' + date + ' ' + rating)
# set item mimeData to get filename=item.data(Qt.UserRole)[0] transformation=item.data(Qt.UserRole)[1]
item.setData(Qt.UserRole, (filename, transformation))
self.wdg.addItem(item)
# for clean exiting we catch all exceptions and force break
except OSError:
continue
except:
break
