import functools
import os
import os.path as osp
import re
import webbrowser
from qtpy import QtCore
from qtpy.QtCore import Qt
from qtpy import QtGui
from qtpy import QtWidgets
from labelme import __appname__
from labelme import PY2
from labelme import QT5
from . import utils
from labelme.config import get_config
from labelme.label_file import LabelFile
from labelme.label_file import LabelFileError
from labelme.logger import logger
from labelme.shape import DEFAULT_FILL_COLOR
from labelme.shape import DEFAULT_LINE_COLOR
from labelme.shape import Shape
from labelme.widgets import Canvas
from labelme.widgets import ColorDialog
from labelme.widgets import EscapableQListWidget
from labelme.widgets import LabelDialog
from labelme.widgets import LabelQListWidget
from labelme.widgets import ToolBar
from labelme.widgets import ZoomWidget
# FIXME
# - [medium] Set max zoom value to something big enough for FitWidth/Window
# TODO(unknown):
# - [high] Add polygon movement with arrow keys
# - [high] Deselect shape when clicking and already selected(?)
# - [low,maybe] Open images with drag & drop.
# - [low,maybe] Preview images on file dialogs.
# - Zoom is too "steppy".
class MainWindow(QtWidgets.QMainWindow):
FIT_WINDOW, FIT_WIDTH, MANUAL_ZOOM = 0, 1, 2
def __init__(
self,
config=None,
filename=None,
output=None,
output_file=None,
output_dir=None,
):
if output is not None:
logger.warning(
'argument output is deprecated, use output_file instead'
)
if output_file is None:
output_file = output
# see labelme/config/default_config.yaml for valid configuration
if config is None:
config = get_config()
self._config = config
super(MainWindow, self).__init__()
self.setWindowTitle(__appname__)
# Whether we need to save or not.
self.dirty = False
self._noSelectionSlot = False
# Main widgets and related state.
self.labelDialog = LabelDialog(
parent=self,
labels=self._config['labels'],
sort_labels=self._config['sort_labels'],
show_text_field=self._config['show_label_text_field'],
completion=self._config['label_completion'],
fit_to_content=self._config['fit_to_content'],
flags=self._config['label_flags']
)
self.labelList = LabelQListWidget()
self.lastOpenDir = None
self.flag_dock = self.flag_widget = None
self.flag_dock = QtWidgets.QDockWidget('Flags', self)
self.flag_dock.setObjectName('Flags')
self.flag_widget = QtWidgets.QListWidget()
if config['flags']:
self.loadFlags({k: False for k in config['flags']})
self.flag_dock.setWidget(self.flag_widget)
self.flag_widget.itemChanged.connect(self.setDirty)
self.labelList.itemActivated.connect(self.labelSelectionChanged)
self.labelList.itemSelectionChanged.connect(self.labelSelectionChanged)
self.labelList.itemDoubleClicked.connect(self.editLabel)
# Connect to itemChanged to detect checkbox changes.
self.labelList.itemChanged.connect(self.labelItemChanged)
self.labelList.setDragDropMode(
QtWidgets.QAbstractItemView.InternalMove)
self.labelList.setParent(self)
self.shape_dock = QtWidgets.QDockWidget('Polygon Labels', self)
self.shape_dock.setObjectName('Labels')
self.shape_dock.setWidget(self.labelList)
self.uniqLabelList = EscapableQListWidget()
self.uniqLabelList.setToolTip(
"Select label to start annotating for it. "
"Press 'Esc' to deselect.")
if self._config['labels']:
self.uniqLabelList.addItems(self._config['labels'])
self.uniqLabelList.sortItems()
self.label_dock = QtWidgets.QDockWidget(u'Label List', self)
self.label_dock.setObjectName(u'Label List')
self.label_dock.setWidget(self.uniqLabelList)
self.fileSearch = QtWidgets.QLineEdit()
self.fileSearch.setPlaceholderText('Search Filename')
self.fileSearch.textChanged.connect(self.fileSearchChanged)
self.fileListWidget = QtWidgets.QListWidget()
self.fileListWidget.itemSelectionChanged.connect(
self.fileSelectionChanged
)
fileListLayout = QtWidgets.QVBoxLayout()
fileListLayout.setContentsMargins(0, 0, 0, 0)
fileListLayout.setSpacing(0)
fileListLayout.addWidget(self.fileSearch)
fileListLayout.addWidget(self.fileListWidget)
self.file_dock = QtWidgets.QDockWidget(u'File List', self)
self.file_dock.setObjectName(u'Files')
fileListWidget = QtWidgets.QWidget()
fileListWidget.setLayout(fileListLayout)
self.file_dock.setWidget(fileListWidget)
self.zoomWidget = ZoomWidget()
self.colorDialog = ColorDialog(parent=self)
self.canvas = self.labelList.canvas = Canvas(
epsilon=self._config['epsilon'],
)
self.canvas.zoomRequest.connect(self.zoomRequest)
scrollArea = QtWidgets.QScrollArea()
scrollArea.setWidget(self.canvas)
scrollArea.setWidgetResizable(True)
self.scrollBars = {
Qt.Vertical: scrollArea.verticalScrollBar(),
Qt.Horizontal: scrollArea.horizontalScrollBar(),
}
self.canvas.scrollRequest.connect(self.scrollRequest)
self.canvas.newShape.connect(self.newShape)
self.canvas.shapeMoved.connect(self.setDirty)
self.canvas.selectionChanged.connect(self.shapeSelectionChanged)
self.canvas.drawingPolygon.connect(self.toggleDrawingSensitive)
self.setCentralWidget(scrollArea)
features = QtWidgets.QDockWidget.DockWidgetFeatures()
for dock in ['flag_dock', 'label_dock', 'shape_dock', 'file_dock']:
if self._config[dock]['closable']:
features = features | QtWidgets.QDockWidget.DockWidgetClosable
if self._config[dock]['floatable']:
features = features | QtWidgets.QDockWidget.DockWidgetFloatable
if self._config[dock]['movable']:
features = features | QtWidgets.QDockWidget.DockWidgetMovable
getattr(self, dock).setFeatures(features)
if self._config[dock]['show'] is False:
getattr(self, dock).setVisible(False)
self.addDockWidget(Qt.RightDockWidgetArea, self.flag_dock)
self.addDockWidget(Qt.RightDockWidgetArea, self.label_dock)
self.addDockWidget(Qt.RightDockWidgetArea, self.shape_dock)
self.addDockWidget(Qt.RightDockWidgetArea, self.file_dock)
# Actions
action = functools.partial(utils.newAction, self)
shortcuts = self._config['shortcuts']
quit = action('&Quit', self.close, shortcuts['quit'], 'quit',
'Quit application')
open_ = action('&Open', self.openFile, shortcuts['open'], 'open',
'Open image or label file')
opendir = action('&Open Dir', self.openDirDialog,
shortcuts['open_dir'], 'open', u'Open Dir')
openNextImg = action(
'&Next Image',
self.openNextImg,
shortcuts['open_next'],
'next',
u'Open next (hold Ctl+Shift to copy labels)',
enabled=False,
)
openPrevImg = action(
'&Prev Image',
self.openPrevImg,
shortcuts['open_prev'],
'prev',
u'Open prev (hold Ctl+Shift to copy labels)',
enabled=False,
)
save = action('&Save', self.saveFile, shortcuts['save'], 'save',
'Save labels to file', enabled=False)
saveAs = action('&Save As', self.saveFileAs, shortcuts['save_as'],
'save-as', 'Save labels to a different file',
enabled=False)
deleteFile = action(
'&Delete File',
self.deleteFile,
shortcuts['delete_file'],
'delete',
'Delete current label file',
enabled=False)
changeOutputDir = action(
'&Change Output Dir',
slot=self.changeOutputDirDialog,
shortcut=shortcuts['save_to'],
icon='open',
tip=u'Change where annotations are loaded/saved'
)
saveAuto = action(
text='Save &Automatically',
slot=lambda x: self.actions.saveAuto.setChecked(x),
icon='save',
tip='Save automatically',
checkable=True,
enabled=True,
)
saveAuto.setChecked(self._config['auto_save'])
close = action('&Close', self.closeFile, shortcuts['close'], 'close',
'Close current file')
color1 = action('Polygon &Line Color', self.chooseColor1,
shortcuts['edit_line_color'], 'color_line',
'Choose polygon line color')
color2 = action('Polygon &Fill Color', self.chooseColor2,
shortcuts['edit_fill_color'], 'color',
'Choose polygon fill color')
toggle_keep_prev_mode = action(
'Keep Previous Annotation',
self.toggleKeepPrevMode,
shortcuts['toggle_keep_prev_mode'], None,
'Toggle "keep pevious annotation" mode',
checkable=True)
toggle_keep_prev_mode.setChecked(self._config['keep_prev'])
createMode = action(
'Create Polygons',
lambda: self.toggleDrawMode(False, createMode='polygon'),
shortcuts['create_polygon'],
'objects',
'Start drawing polygons',
enabled=False,
)
createRectangleMode = action(
'Create Rectangle',
lambda: self.toggleDrawMode(False, createMode='rectangle'),
shortcuts['create_rectangle'],
'objects',
'Start drawing rectangles',
enabled=False,
)
createCircleMode = action(
'Create Circle',
lambda: self.toggleDrawMode(False, createMode='circle'),
shortcuts['create_circle'],
'objects',
'Start drawing circles',
enabled=False,
)
createLineMode = action(
'Create Line',
lambda: self.toggleDrawMode(False, createMode='line'),
shortcuts['create_line'],
'objects',
'Start drawing lines',
enabled=False,
)
createPointMode = action(
'Create Point',
lambda: self.toggleDrawMode(False, createMode='point'),
shortcuts['create_point'],
'objects',
'Start drawing points',
enabled=False,
)
createLineStripMode = action(
'Create LineStrip',
lambda: self.toggleDrawMode(False, createMode='linestrip'),
shortcuts['create_linestrip'],
'objects',
'Start drawing linestrip. Ctrl+LeftClick ends creation.',
enabled=False,
)
editMode = action('Edit Polygons', self.setEditMode,
shortcuts['edit_polygon'], 'edit',
'Move and edit polygons', enabled=False)
delete = action('Delete Polygon', self.deleteSelectedShape,
shortcuts['delete_polygon'], 'cancel',
'Delete', enabled=False)
copy = action('Duplicate Polygon', self.copySelectedShape,
shortcuts['duplicate_polygon'], 'copy',
'Create a duplicate of the selected polygon',
enabled=False)
undoLastPoint = action('Undo last point', self.canvas.undoLastPoint,
shortcuts['undo_last_point'], 'undo',
'Undo last drawn point', enabled=False)
addPoint = action('Add Point to Edge', self.canvas.addPointToEdge,
None, 'edit', 'Add point to the nearest edge',
enabled=False)
undo = action('Undo', self.undoShapeEdit, shortcuts['undo'], 'undo',
'Undo last add and edit of shape', enabled=False)
hideAll = action('&Hide\nPolygons',
functools.partial(self.togglePolygons, False),
icon='eye', tip='Hide all polygons', enabled=False)
showAll = action('&Show\nPolygons',
functools.partial(self.togglePolygons, True),
icon='eye', tip='Show all polygons', enabled=False)
help = action('&Tutorial', self.tutorial, icon='help',
tip='Show tutorial page')
zoom = QtWidgets.QWidgetAction(self)
zoom.setDefaultWidget(self.zoomWidget)
self.zoomWidget.setWhatsThis(
'Zoom in or out of the image. Also accessible with '
'{} and {} from the canvas.'
.format(
utils.fmtShortcut(
'{},{}'.format(
shortcuts['zoom_in'], shortcuts['zoom_out']
)
),
utils.fmtShortcut("Ctrl+Wheel"),
)
)
self.zoomWidget.setEnabled(False)
zoomIn = action('Zoom &In', functools.partial(self.addZoom, 1.1),
shortcuts['zoom_in'], 'zoom-in',
'Increase zoom level', enabled=False)
zoomOut = action('&Zoom Out', functools.partial(self.addZoom, 0.9),
shortcuts['zoom_out'], 'zoom-out',
'Decrease zoom level', enabled=False)
zoomOrg = action('&Original size',
functools.partial(self.setZoom, 100),
shortcuts['zoom_to_original'], 'zoom',
'Zoom to original size', enabled=False)
fitWindow = action('&Fit Window', self.setFitWindow,
shortcuts['fit_window'], 'fit-window',
'Zoom follows window size', checkable=True,
enabled=False)
fitWidth = action('Fit &Width', self.setFitWidth,
shortcuts['fit_width'], 'fit-width',
'Zoom follows window width',
checkable=True, enabled=False)
# Group zoom controls into a list for easier toggling.
zoomActions = (self.zoomWidget, zoomIn, zoomOut, zoomOrg,
fitWindow, fitWidth)
self.zoomMode = self.FIT_WINDOW
fitWindow.setChecked(Qt.Checked)
self.scalers = {
self.FIT_WINDOW: self.scaleFitWindow,
self.FIT_WIDTH: self.scaleFitWidth,
# Set to one to scale to 100% when loading files.
self.MANUAL_ZOOM: lambda: 1,
}
edit = action('&Edit Label', self.editLabel, shortcuts['edit_label'],
'edit', 'Modify the label of the selected polygon',
enabled=False)
shapeLineColor = action(
'Shape &Line Color', self.chshapeLineColor, icon='color-line',
tip='Change the line color for this specific shape', enabled=False)
shapeFillColor = action(
'Shape &Fill Color', self.chshapeFillColor, icon='color',
tip='Change the fill color for this specific shape', enabled=False)
fill_drawing = action(
'Fill Drawing Polygon',
lambda x: self.canvas.setFillDrawing(x),
None,
'color',
'Fill polygon while drawing',
checkable=True,
enabled=True,
)
fill_drawing.setChecked(True)
# Lavel list context menu.
labelMenu = QtWidgets.QMenu()
utils.addActions(labelMenu, (edit, delete))
self.labelList.setContextMenuPolicy(Qt.CustomContextMenu)
self.labelList.customContextMenuRequested.connect(
self.popLabelListMenu)
# Store actions for further handling.
self.actions = utils.struct(
saveAuto=saveAuto,
changeOutputDir=changeOutputDir,
save=save, saveAs=saveAs, open=open_, close=close,
deleteFile=deleteFile,
lineColor=color1, fillColor=color2,
toggleKeepPrevMode=toggle_keep_prev_mode,
delete=delete, edit=edit, copy=copy,
undoLastPoint=undoLastPoint, undo=undo,
addPoint=addPoint,
createMode=createMode, editMode=editMode,
createRectangleMode=createRectangleMode,
createCircleMode=createCircleMode,
createLineMode=createLineMode,
createPointMode=createPointMode,
createLineStripMode=createLineStripMode,
shapeLineColor=shapeLineColor, shapeFillColor=shapeFillColor,
zoom=zoom, zoomIn=zoomIn, zoomOut=zoomOut, zoomOrg=zoomOrg,
fitWindow=fitWindow, fitWidth=fitWidth,
zoomActions=zoomActions,
openNextImg=openNextImg, openPrevImg=openPrevImg,
fileMenuActions=(open_, opendir, save, saveAs, close, quit),
tool=(),
editMenu=(edit, copy, delete, None, undo, undoLastPoint,
None, color1, color2, None, toggle_keep_prev_mode),
# menu shown at right click
menu=(
createMode,
createRectangleMode,
createCircleMode,
createLineMode,
createPointMode,
createLineStripMode,
editMode,
edit,
copy,
delete,
shapeLineColor,
shapeFillColor,
undo,
undoLastPoint,
addPoint,
),
onLoadActive=(
close,
createMode,
createRectangleMode,
createCircleMode,
createLineMode,
createPointMode,
createLineStripMode,
editMode,
),
onShapesPresent=(saveAs, hideAll, showAll),
)
self.canvas.edgeSelected.connect(self.actions.addPoint.setEnabled)
self.menus = utils.struct(
file=self.menu('&File'),
edit=self.menu('&Edit'),
view=self.menu('&View'),
help=self.menu('&Help'),
recentFiles=QtWidgets.QMenu('Open &Recent'),
labelList=labelMenu,
)
utils.addActions(
self.menus.file,
(
open_,
openNextImg,
openPrevImg,
opendir,
self.menus.recentFiles,
save,
saveAs,
saveAuto,
changeOutputDir,
close,
deleteFile,
None,
quit,
),
)
utils.addActions(self.menus.help, (help,))
utils.addActions(
self.menus.view,
(
self.flag_dock.toggleViewAction(),
self.label_dock.toggleViewAction(),
self.shape_dock.toggleViewAction(),
self.file_dock.toggleViewAction(),
None,
fill_drawing,
None,
hideAll,
showAll,
None,
zoomIn,
zoomOut,
zoomOrg,
None,
fitWindow,
fitWidth,
None,
),
)
self.menus.file.aboutToShow.connect(self.updateFileMenu)
# Custom context menu for the canvas widget:
utils.addActions(self.canvas.menus[0], self.actions.menu)
utils.addActions(
self.canvas.menus[1],
(
action('&Copy here', self.copyShape),
action('&Move here', self.moveShape),
),
)
self.tools = self.toolbar('Tools')
# Menu buttons on Left
self.actions.tool = (
open_,
opendir,
openNextImg,
openPrevImg,
save,
deleteFile,
None,
createMode,
editMode,
copy,
delete,
undo,
None,
zoomIn,
zoom,
zoomOut,
fitWindow,
fitWidth,
)
self.statusBar().showMessage('%s started.' % __appname__)
self.statusBar().show()
if output_file is not None and self._config['auto_save']:
logger.warn(
'If `auto_save` argument is True, `output_file` argument '
'is ignored and output filename is automatically '
'set as IMAGE_BASENAME.json.'
)
self.output_file = output_file
self.output_dir = output_dir
# Application state.
self.image = QtGui.QImage()
self.imagePath = None
self.recentFiles = []
self.maxRecent = 7
self.lineColor = None
self.fillColor = None
self.otherData = None
self.zoom_level = 100
self.fit_window = False
if filename is not None and osp.isdir(filename):
self.importDirImages(filename, load=False)
else:
self.filename = filename
if config['file_search']:
self.fileSearch.setText(config['file_search'])
self.fileSearchChanged()
# XXX: Could be completely declarative.
# Restore application settings.
self.settings = QtCore.QSettings('labelme', 'labelme')
# FIXME: QSettings.value can return None on PyQt4
self.recentFiles = self.settings.value('recentFiles', []) or []
size = self.settings.value('window/size', QtCore.QSize(600, 500))
position = self.settings.value('window/position', QtCore.QPoint(0, 0))
self.resize(size)
self.move(position)
# or simply:
# self.restoreGeometry(settings['window/geometry']
self.restoreState(
self.settings.value('window/state', QtCore.QByteArray()))
self.lineColor = QtGui.QColor(
self.settings.value('line/color', Shape.line_color))
self.fillColor = QtGui.QColor(
self.settings.value('fill/color', Shape.fill_color))
Shape.line_color = self.lineColor
Shape.fill_color = self.fillColor
# Populate the File menu dynamically.
self.updateFileMenu()
# Since loading the file may take some time,
# make sure it runs in the background.
if self.filename is not None:
self.queueEvent(functools.partial(self.loadFile, self.filename))
# Callbacks:
self.zoomWidget.valueChanged.connect(self.paintCanvas)
self.populateModeActions()
# self.firstStart = True
# if self.firstStart:
# QWhatsThis.enterWhatsThisMode()
def menu(self, title, actions=None):
menu = self.menuBar().addMenu(title)
if actions:
utils.addActions(menu, actions)
return menu
def toolbar(self, title, actions=None):
toolbar = ToolBar(title)
toolbar.setObjectName('%sToolBar' % title)
# toolbar.setOrientation(Qt.Vertical)
toolbar.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
if actions:
utils.addActions(toolbar, actions)
self.addToolBar(Qt.LeftToolBarArea, toolbar)
return toolbar
# Support Functions
def noShapes(self):
return not self.labelList.itemsToShapes
def populateModeActions(self):
tool, menu = self.actions.tool, self.actions.menu
self.tools.clear()
utils.addActions(self.tools, tool)
self.canvas.menus[0].clear()
utils.addActions(self.canvas.menus[0], menu)
self.menus.edit.clear()
actions = (
self.actions.createMode,
self.actions.createRectangleMode,
self.actions.createCircleMode,
self.actions.createLineMode,
self.actions.createPointMode,
self.actions.createLineStripMode,
self.actions.editMode,
)
utils.addActions(self.menus.edit, actions + self.actions.editMenu)
def setDirty(self):
if self._config['auto_save'] or self.actions.saveAuto.isChecked():
label_file = osp.splitext(self.imagePath)[0] + '.json'
if self.output_dir:
label_file_without_path = osp.basename(label_file)
label_file = osp.join(self.output_dir, label_file_without_path)
self.saveLabels(label_file)
return
self.dirty = True
self.actions.save.setEnabled(True)
self.actions.undo.setEnabled(self.canvas.isShapeRestorable)
title = __appname__
if self.filename is not None:
title = '{} - {}*'.format(title, self.filename)
self.setWindowTitle(title)
def setClean(self):
self.dirty = False
self.actions.save.setEnabled(False)
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
title = __appname__
if self.filename is not None:
title = '{} - {}'.format(title, self.filename)
self.setWindowTitle(title)
if self.hasLabelFile():
self.actions.deleteFile.setEnabled(True)
else:
self.actions.deleteFile.setEnabled(False)
def toggleActions(self, value=True):
"""Enable/Disable widgets which depend on an opened image."""
for z in self.actions.zoomActions:
z.setEnabled(value)
for action in self.actions.onLoadActive:
action.setEnabled(value)
def queueEvent(self, function):
QtCore.QTimer.singleShot(0, function)
def status(self, message, delay=5000):
self.statusBar().showMessage(message, delay)
def resetState(self):
self.labelList.clear()
self.filename = None
self.imagePath = None
self.imageData = None
self.labelFile = None
self.otherData = None
self.canvas.resetState()
def currentItem(self):
items = self.labelList.selectedItems()
if items:
return items[0]
return None
def addRecentFile(self, filename):
if filename in self.recentFiles:
self.recentFiles.remove(filename)
elif len(self.recentFiles) >= self.maxRecent:
self.recentFiles.pop()
self.recentFiles.insert(0, filename)
# Callbacks
def undoShapeEdit(self):
self.canvas.restoreShape()
self.labelList.clear()
self.loadShapes(self.canvas.shapes)
self.actions.undo.setEnabled(self.canvas.isShapeRestorable)
def tutorial(self):
url = 'https://github.com/wkentaro/labelme/tree/master/examples/tutorial' # NOQA
webbrowser.open(url)
def toggleAddPointEnabled(self, enabled):
self.actions.addPoint.setEnabled(enabled)
def toggleDrawingSensitive(self, drawing=True):
"""Toggle drawing sensitive.
In the middle of drawing, toggling between modes should be disabled.
"""
self.actions.editMode.setEnabled(not drawing)
self.actions.undoLastPoint.setEnabled(drawing)
self.actions.undo.setEnabled(not drawing)
self.actions.delete.setEnabled(not drawing)
def toggleDrawMode(self, edit=True, createMode='polygon'):
self.canvas.setEditing(edit)
self.canvas.createMode = createMode
if edit:
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
else:
if createMode == 'polygon':
self.actions.createMode.setEnabled(False)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
elif createMode == 'rectangle':
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(False)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
elif createMode == 'line':
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(False)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
elif createMode == 'point':
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(False)
self.actions.createLineStripMode.setEnabled(True)
elif createMode == "circle":
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(False)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(True)
elif createMode == "linestrip":
self.actions.createMode.setEnabled(True)
self.actions.createRectangleMode.setEnabled(True)
self.actions.createCircleMode.setEnabled(True)
self.actions.createLineMode.setEnabled(True)
self.actions.createPointMode.setEnabled(True)
self.actions.createLineStripMode.setEnabled(False)
else:
raise ValueError('Unsupported createMode: %s' % createMode)
self.actions.editMode.setEnabled(not edit)
def setEditMode(self):
self.toggleDrawMode(True)
def updateFileMenu(self):
current = self.filename
def exists(filename):
return osp.exists(str(filename))
menu = self.menus.recentFiles
menu.clear()
files = [f for f in self.recentFiles if f != current and exists(f)]
for i, f in enumerate(files):
icon = utils.newIcon('labels')
action = QtWidgets.QAction(
icon, '&%d %s' % (i + 1, QtCore.QFileInfo(f).fileName()), self)
action.triggered.connect(functools.partial(self.loadRecent, f))
menu.addAction(action)
def popLabelListMenu(self, point):
self.menus.labelList.exec_(self.labelList.mapToGlobal(point))
def validateLabel(self, label):
# no validation
if self._config['validate_label'] is None:
return True
for i in range(self.uniqLabelList.count()):
label_i = self.uniqLabelList.item(i).text()
if self._config['validate_label'] in ['exact', 'instance']:
if label_i == label:
return True
if self._config['validate_label'] == 'instance':
m = re.match(r'^{}-[0-9]*$'.format(label_i), label)
if m:
return True
return False
def editLabel(self, item=False):
if item and not isinstance(item, QtWidgets.QListWidgetItem):
raise TypeError('unsupported type of item: {}'.format(type(item)))
if not self.canvas.editing():
return
if not item:
item = self.currentItem()
if item is None:
return
shape = self.labelList.get_shape_from_item(item)
if shape is None:
return
text, flags = self.labelDialog.popUp(shape.label, flags=shape.flags)
if text is None:
return
if not self.validateLabel(text):
self.errorMessage('Invalid label',
"Invalid label '{}' with validation type '{}'"
.format(text, self._config['validate_label']))
return
shape.label = text
shape.flags = flags
item.setText(text)
self.setDirty()
if not self.uniqLabelList.findItems(text, Qt.MatchExactly):
self.uniqLabelList.addItem(text)
self.uniqLabelList.sortItems()
def fileSearchChanged(self):
self.importDirImages(
self.lastOpenDir,
pattern=self.fileSearch.text(),
load=False,
)
def fileSelectionChanged(self):
items = self.fileListWidget.selectedItems()
if not items:
return
item = items[0]
if not self.mayContinue():
return
currIndex = self.imageList.index(str(item.text()))
if currIndex < len(self.imageList):
filename = self.imageList[currIndex]
if filename:
self.loadFile(filename)
# React to canvas signals.
def shapeSelectionChanged(self, selected=False):
if self._noSelectionSlot:
self._noSelectionSlot = False
else:
shape = self.canvas.selectedShape
if shape:
item = self.labelList.get_item_from_shape(shape)
item.setSelected(True)
else:
self.labelList.clearSelection()
self.actions.delete.setEnabled(selected)
self.actions.copy.setEnabled(selected)
self.actions.edit.setEnabled(selected)
self.actions.shapeLineColor.setEnabled(selected)
self.actions.shapeFillColor.setEnabled(selected)
def addLabel(self, shape):
item = QtWidgets.QListWidgetItem(shape.label)
item.setFlags(item.flags() | Qt.ItemIsUserCheckable)
item.setCheckState(Qt.Checked)
self.labelList.itemsToShapes.append((item, shape))
self.labelList.addItem(item)
if not self.uniqLabelList.findItems(shape.label, Qt.MatchExactly):
self.uniqLabelList.addItem(shape.label)
self.uniqLabelList.sortItems()
self.labelDialog.addLabelHistory(item.text())
for action in self.actions.onShapesPresent:
action.setEnabled(True)
def remLabel(self, shape):
item = self.labelList.get_item_from_shape(shape)
self.labelList.takeItem(self.labelList.row(item))
def loadShapes(self, shapes, replace=True):
for shape in shapes:
self.addLabel(shape)
self.canvas.loadShapes(shapes, replace=replace)
def loadLabels(self, shapes):
s = []
for label, points, line_color, fill_color, shape_type, flags in shapes:
shape = Shape(label=label, shape_type=shape_type)
for x, y in points:
shape.addPoint(QtCore.QPointF(x, y))
shape.close()
if line_color:
shape.line_color = QtGui.QColor(*line_color)
if fill_color:
shape.fill_color = QtGui.QColor(*fill_color)
default_flags = {}
if self._config['label_flags']:
for pattern, keys in self._config['label_flags'].items():
if re.match(pattern, label):
for key in keys:
default_flags[key] = False
shape.flags = default_flags
shape.flags.update(flags)
s.append(shape)
self.loadShapes(s)
def loadFlags(self, flags):
self.flag_widget.clear()
for key, flag in flags.items():
item = QtWidgets.QListWidgetItem(key)
item.setFlags(item.flags() | Qt.ItemIsUserCheckable)
item.setCheckState(Qt.Checked if flag else Qt.Unchecked)
self.flag_widget.addItem(item)
def saveLabels(self, filename):
lf = LabelFile()
def format_shape(s):
return dict(
label=s.label.encode('utf-8') if PY2 else s.label,
line_color=s.line_color.getRgb()
if s.line_color != self.lineColor else None,
fill_color=s.fill_color.getRgb()
if s.fill_color != self.fillColor else None,
points=[(p.x(), p.y()) for p in s.points],
shape_type=s.shape_type,
flags=s.flags
)
shapes = [format_shape(shape) for shape in self.labelList.shapes]
flags = {}
for i in range(self.flag_widget.count()):
item = self.flag_widget.item(i)
key = item.text()
flag = item.checkState() == Qt.Checked
flags[key] = flag
try:
imagePath = osp.relpath(
self.imagePath, osp.dirname(filename))
imageData = self.imageData if self._config['store_data'] else None
if osp.dirname(filename) and not osp.exists(osp.dirname(filename)):
os.makedirs(osp.dirname(filename))
lf.save(
filename=filename,
shapes=shapes,
imagePath=imagePath,
imageData=imageData,
imageHeight=self.image.height(),
imageWidth=self.image.width(),
lineColor=self.lineColor.getRgb(),
fillColor=self.fillColor.getRgb(),
otherData=self.otherData,
flags=flags,
)
self.labelFile = lf
items = self.fileListWidget.findItems(
self.imagePath, Qt.MatchExactly
)
if len(items) > 0:
if len(items) != 1:
raise RuntimeError('There are duplicate files.')
items[0].setCheckState(Qt.Checked)
# disable allows next and previous image to proceed
# self.filename = filename
return True
except LabelFileError as e:
self.errorMessage('Error saving label data', '%s' % e)
return False
def copySelectedShape(self):
self.addLabel(self.canvas.copySelectedShape())
# fix copy and delete
self.shapeSelectionChanged(True)
def labelSelectionChanged(self):
item = self.currentItem()
if item and self.canvas.editing():
self._noSelectionSlot = True
shape = self.labelList.get_shape_from_item(item)
self.canvas.selectShape(shape)
def labelItemChanged(self, item):
shape = self.labelList.get_shape_from_item(item)
label = str(item.text())
if label != shape.label:
shape.label = str(item.text())
self.setDirty()
else: # User probably changed item visibility
self.canvas.setShapeVisible(shape, item.checkState() == Qt.Checked)
# Callback functions:
def newShape(self):
"""Pop-up and give focus to the label editor.
position MUST be in global coordinates.
"""
items = self.uniqLabelList.selectedItems()
text = None
flags = None
if items:
text = items[0].text()
if self._config['display_label_popup'] or not text:
# instance label auto increment
if self._config['instance_label_auto_increment']:
previous_label = self.labelDialog.edit.text()
split = previous_label.split('-')
if len(split) > 1 and split[-1].isdigit():
split[-1] = str(int(split[-1]) + 1)
text = '-'.join(split)
text, flags = self.labelDialog.popUp(text)
if text is not None and not self.validateLabel(text):
self.errorMessage('Invalid label',
"Invalid label '{}' with validation type '{}'"
.format(text, self._config['validate_label']))
text = None
if text is None:
self.canvas.undoLastLine()
self.canvas.shapesBackups.pop()
else:
self.addLabel(self.canvas.setLastLabel(text, flags))
self.actions.editMode.setEnabled(True)
self.actions.undoLastPoint.setEnabled(False)
self.actions.undo.setEnabled(True)
self.setDirty()
def scrollRequest(self, delta, orientation):
units = - delta * 0.1 # natural scroll
bar = self.scrollBars[orientation]
bar.setValue(bar.value() + bar.singleStep() * units)
def setZoom(self, value):
self.actions.fitWidth.setChecked(False)
self.actions.fitWindow.setChecked(False)
self.zoomMode = self.MANUAL_ZOOM
self.zoomWidget.setValue(value)
def addZoom(self, increment=1.1):
self.setZoom(self.zoomWidget.value() * increment)
def zoomRequest(self, delta, pos):
canvas_width_old = self.canvas.width()
units = 1.1
if delta < 0:
units = 0.9
self.addZoom(units)
canvas_width_new = self.canvas.width()
if canvas_width_old != canvas_width_new:
canvas_scale_factor = canvas_width_new / canvas_width_old
x_shift = round(pos.x() * canvas_scale_factor) - pos.x()
y_shift = round(pos.y() * canvas_scale_factor) - pos.y()
self.scrollBars[Qt.Horizontal].setValue(
self.scrollBars[Qt.Horizontal].value() + x_shift)
self.scrollBars[Qt.Vertical].setValue(
self.scrollBars[Qt.Vertical].value() + y_shift)
def setFitWindow(self, value=True):
if value:
self.actions.fitWidth.setChecked(False)
self.zoomMode = self.FIT_WINDOW if value else self.MANUAL_ZOOM
self.adjustScale()
def setFitWidth(self, value=True):
if value:
self.actions.fitWindow.setChecked(False)
self.zoomMode = self.FIT_WIDTH if value else self.MANUAL_ZOOM
self.adjustScale()
def togglePolygons(self, value):
for item, shape in self.labelList.itemsToShapes:
item.setCheckState(Qt.Checked if value else Qt.Unchecked)
def loadFile(self, filename=None):
"""Load the specified file, or the last opened file if None."""
# changing fileListWidget loads file
if (filename in self.imageList and
self.fileListWidget.currentRow() !=
self.imageList.index(filename)):
self.fileListWidget.setCurrentRow(self.imageList.index(filename))
self.fileListWidget.repaint()
return
self.resetState()
self.canvas.setEnabled(False)
if filename is None:
filename = self.settings.value('filename', '')
filename = str(filename)
if not QtCore.QFile.exists(filename):
self.errorMessage(
'Error opening file', 'No such file: %s' % filename)
return False
# assumes same name, but json extension
self.status("Loading %s..." % osp.basename(str(filename)))
label_file = osp.splitext(filename)[0] + '.json'
if self.output_dir:
label_file_without_path = osp.basename(label_file)
label_file = osp.join(self.output_dir, label_file_without_path)
if QtCore.QFile.exists(label_file) and \
LabelFile.is_label_file(label_file):
try:
self.labelFile = LabelFile(label_file)
except LabelFileError as e:
self.errorMessage(
'Error opening file',
"%s
"
"Make sure %s is a valid label file."
% (e, label_file))
self.status("Error reading %s" % label_file)
return False
self.imageData = self.labelFile.imageData
self.imagePath = osp.join(
osp.dirname(label_file),
self.labelFile.imagePath,
)
if self.labelFile.lineColor is not None:
self.lineColor = QtGui.QColor(*self.labelFile.lineColor)
if self.labelFile.fillColor is not None:
self.fillColor = QtGui.QColor(*self.labelFile.fillColor)
self.otherData = self.labelFile.otherData
else:
self.imageData = LabelFile.load_image_file(filename)
if self.imageData:
self.imagePath = filename
self.labelFile = None
image = QtGui.QImage.fromData(self.imageData)
if image.isNull():
formats = ['*.{}'.format(fmt.data().decode())
for fmt in QtGui.QImageReader.supportedImageFormats()]
self.errorMessage(
'Error opening file',
'
Make sure {0} is a valid image file.
'
'Supported image formats: {1}
'
.format(filename, ','.join(formats)))
self.status("Error reading %s" % filename)
return False
self.image = image
self.filename = filename
if self._config['keep_prev']:
prev_shapes = self.canvas.shapes
self.canvas.loadPixmap(QtGui.QPixmap.fromImage(image))
if self._config['flags']:
self.loadFlags({k: False for k in self._config['flags']})
if self.labelFile:
self.loadLabels(self.labelFile.shapes)
if self.labelFile.flags is not None:
self.loadFlags(self.labelFile.flags)
if self._config['keep_prev'] and not self.labelList.shapes:
self.loadShapes(prev_shapes, replace=False)
self.setClean()
self.canvas.setEnabled(True)
self.adjustScale(initial=True)
self.paintCanvas()
self.addRecentFile(self.filename)
self.toggleActions(True)
self.status("Loaded %s" % osp.basename(str(filename)))
return True
def resizeEvent(self, event):
if self.canvas and not self.image.isNull()\
and self.zoomMode != self.MANUAL_ZOOM:
self.adjustScale()
super(MainWindow, self).resizeEvent(event)
def paintCanvas(self):
assert not self.image.isNull(), "cannot paint null image"
self.canvas.scale = 0.01 * self.zoomWidget.value()
self.canvas.adjustSize()
self.canvas.update()
def adjustScale(self, initial=False):
value = self.scalers[self.FIT_WINDOW if initial else self.zoomMode]()
self.zoomWidget.setValue(int(100 * value))
def scaleFitWindow(self):
"""Figure out the size of the pixmap to fit the main widget."""
e = 2.0 # So that no scrollbars are generated.
w1 = self.centralWidget().width() - e
h1 = self.centralWidget().height() - e
a1 = w1 / h1
# Calculate a new scale value based on the pixmap's aspect ratio.
w2 = self.canvas.pixmap.width() - 0.0
h2 = self.canvas.pixmap.height() - 0.0
a2 = w2 / h2
return w1 / w2 if a2 >= a1 else h1 / h2
def scaleFitWidth(self):
# The epsilon does not seem to work too well here.
w = self.centralWidget().width() - 2.0
return w / self.canvas.pixmap.width()
def closeEvent(self, event):
if not self.mayContinue():
event.ignore()
self.settings.setValue(
'filename', self.filename if self.filename else '')
self.settings.setValue('window/size', self.size())
self.settings.setValue('window/position', self.pos())
self.settings.setValue('window/state', self.saveState())
self.settings.setValue('line/color', self.lineColor)
self.settings.setValue('fill/color', self.fillColor)
self.settings.setValue('recentFiles', self.recentFiles)
# ask the use for where to save the labels
# self.settings.setValue('window/geometry', self.saveGeometry())
# User Dialogs #
def loadRecent(self, filename):
if self.mayContinue():
self.loadFile(filename)
def openPrevImg(self, _value=False):
keep_prev = self._config['keep_prev']
if QtGui.QGuiApplication.keyboardModifiers() == \
(QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier):
self._config['keep_prev'] = True
if not self.mayContinue():
return
if len(self.imageList) <= 0:
return
if self.filename is None:
return
currIndex = self.imageList.index(self.filename)
if currIndex - 1 >= 0:
filename = self.imageList[currIndex - 1]
if filename:
self.loadFile(filename)
self._config['keep_prev'] = keep_prev
def openNextImg(self, _value=False, load=True):
keep_prev = self._config['keep_prev']
if QtGui.QGuiApplication.keyboardModifiers() == \
(QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier):
self._config['keep_prev'] = True
if not self.mayContinue():
return
if len(self.imageList) <= 0:
return
filename = None
if self.filename is None:
filename = self.imageList[0]
else:
currIndex = self.imageList.index(self.filename)
if currIndex + 1 < len(self.imageList):
filename = self.imageList[currIndex + 1]
else:
filename = self.imageList[-1]
self.filename = filename
if self.filename and load:
self.loadFile(self.filename)
self._config['keep_prev'] = keep_prev
def openFile(self, _value=False):
if not self.mayContinue():
return
path = osp.dirname(str(self.filename)) if self.filename else '.'
formats = ['*.{}'.format(fmt.data().decode())
for fmt in QtGui.QImageReader.supportedImageFormats()]
filters = "Image & Label files (%s)" % ' '.join(
formats + ['*%s' % LabelFile.suffix])
filename = QtWidgets.QFileDialog.getOpenFileName(
self, '%s - Choose Image or Label file' % __appname__,
path, filters)
if QT5:
filename, _ = filename
filename = str(filename)
if filename:
self.loadFile(filename)
def changeOutputDirDialog(self, _value=False):
default_output_dir = self.output_dir
if default_output_dir is None and self.filename:
default_output_dir = osp.dirname(self.filename)
if default_output_dir is None:
default_output_dir = self.currentPath()
output_dir = QtWidgets.QFileDialog.getExistingDirectory(
self, '%s - Save/Load Annotations in Directory' % __appname__,
default_output_dir,
QtWidgets.QFileDialog.ShowDirsOnly |
QtWidgets.QFileDialog.DontResolveSymlinks,
)
output_dir = str(output_dir)
if not output_dir:
return
self.output_dir = output_dir
self.statusBar().showMessage(
'%s . Annotations will be saved/loaded in %s' %
('Change Annotations Dir', self.output_dir))
self.statusBar().show()
current_filename = self.filename
self.importDirImages(self.lastOpenDir, load=False)
if current_filename in self.imageList:
# retain currently selected file
self.fileListWidget.setCurrentRow(
self.imageList.index(current_filename))
self.fileListWidget.repaint()
def saveFile(self, _value=False):
assert not self.image.isNull(), "cannot save empty image"
if self._config['flags'] or self.hasLabels():
if self.labelFile:
# DL20180323 - overwrite when in directory
self._saveFile(self.labelFile.filename)
elif self.output_file:
self._saveFile(self.output_file)
self.close()
else:
self._saveFile(self.saveFileDialog())
def saveFileAs(self, _value=False):
assert not self.image.isNull(), "cannot save empty image"
if self.hasLabels():
self._saveFile(self.saveFileDialog())
def saveFileDialog(self):
caption = '%s - Choose File' % __appname__
filters = 'Label files (*%s)' % LabelFile.suffix
if self.output_dir:
dlg = QtWidgets.QFileDialog(
self, caption, self.output_dir, filters
)
else:
dlg = QtWidgets.QFileDialog(
self, caption, self.currentPath(), filters
)
dlg.setDefaultSuffix(LabelFile.suffix[1:])
dlg.setAcceptMode(QtWidgets.QFileDialog.AcceptSave)
dlg.setOption(QtWidgets.QFileDialog.DontConfirmOverwrite, False)
dlg.setOption(QtWidgets.QFileDialog.DontUseNativeDialog, False)
basename = osp.basename(osp.splitext(self.filename)[0])
if self.output_dir:
default_labelfile_name = osp.join(
self.output_dir, basename + LabelFile.suffix
)
else:
default_labelfile_name = osp.join(
self.currentPath(), basename + LabelFile.suffix
)
filename = dlg.getSaveFileName(
self, 'Choose File', default_labelfile_name,
'Label files (*%s)' % LabelFile.suffix)
if QT5:
filename, _ = filename
filename = str(filename)
return filename
def _saveFile(self, filename):
if filename and self.saveLabels(filename):
self.addRecentFile(filename)
self.setClean()
def closeFile(self, _value=False):
if not self.mayContinue():
return
self.resetState()
self.setClean()
self.toggleActions(False)
self.canvas.setEnabled(False)
self.actions.saveAs.setEnabled(False)
def getLabelFile(self):
if self.filename.lower().endswith('.json'):
label_file = self.filename
else:
label_file = osp.splitext(self.filename)[0] + '.json'
return label_file
def deleteFile(self):
mb = QtWidgets.QMessageBox
msg = 'You are about to permanently delete this label file, ' \
'proceed anyway?'
answer = mb.warning(self, 'Attention', msg, mb.Yes | mb.No)
if answer != mb.Yes:
return
label_file = self.getLabelFile()
if osp.exists(label_file):
os.remove(label_file)
logger.info('Label file is removed: {}'.format(label_file))
item = self.fileListWidget.currentItem()
item.setCheckState(Qt.Unchecked)
self.resetState()
# Message Dialogs. #
def hasLabels(self):
if not self.labelList.itemsToShapes:
self.errorMessage(
'No objects labeled',
'You must label at least one object to save the file.')
return False
return True
def hasLabelFile(self):
if self.filename is None:
return False
label_file = self.getLabelFile()
return osp.exists(label_file)
def mayContinue(self):
if not self.dirty:
return True
mb = QtWidgets.QMessageBox
msg = 'Save annotations to "{}" before closing?'.format(self.filename)
answer = mb.question(self,
'Save annotations?',
msg,
mb.Save | mb.Discard | mb.Cancel,
mb.Save)
if answer == mb.Discard:
return True
elif answer == mb.Save:
self.saveFile()
return True
else: # answer == mb.Cancel
return False
def errorMessage(self, title, message):
return QtWidgets.QMessageBox.critical(
self, title, '%s
%s' % (title, message))
def currentPath(self):
return osp.dirname(str(self.filename)) if self.filename else '.'
def chooseColor1(self):
color = self.colorDialog.getColor(
self.lineColor, 'Choose line color', default=DEFAULT_LINE_COLOR)
if color:
self.lineColor = color
# Change the color for all shape lines:
Shape.line_color = self.lineColor
self.canvas.update()
self.setDirty()
def chooseColor2(self):
color = self.colorDialog.getColor(
self.fillColor, 'Choose fill color', default=DEFAULT_FILL_COLOR)
if color:
self.fillColor = color
Shape.fill_color = self.fillColor
self.canvas.update()
self.setDirty()
def toggleKeepPrevMode(self):
self._config['keep_prev'] = not self._config['keep_prev']
def deleteSelectedShape(self):
yes, no = QtWidgets.QMessageBox.Yes, QtWidgets.QMessageBox.No
msg = 'You are about to permanently delete this polygon, ' \
'proceed anyway?'
if yes == QtWidgets.QMessageBox.warning(self, 'Attention', msg,
yes | no):
self.remLabel(self.canvas.deleteSelected())
self.setDirty()
if self.noShapes():
for action in self.actions.onShapesPresent:
action.setEnabled(False)
def chshapeLineColor(self):
color = self.colorDialog.getColor(
self.lineColor, 'Choose line color', default=DEFAULT_LINE_COLOR)
if color:
self.canvas.selectedShape.line_color = color
self.canvas.update()
self.setDirty()
def chshapeFillColor(self):
color = self.colorDialog.getColor(
self.fillColor, 'Choose fill color', default=DEFAULT_FILL_COLOR)
if color:
self.canvas.selectedShape.fill_color = color
self.canvas.update()
self.setDirty()
def copyShape(self):
self.canvas.endMove(copy=True)
self.addLabel(self.canvas.selectedShape)
self.setDirty()
def moveShape(self):
self.canvas.endMove(copy=False)
self.setDirty()
def openDirDialog(self, _value=False, dirpath=None):
if not self.mayContinue():
return
defaultOpenDirPath = dirpath if dirpath else '.'
if self.lastOpenDir and osp.exists(self.lastOpenDir):
defaultOpenDirPath = self.lastOpenDir
else:
defaultOpenDirPath = osp.dirname(self.filename) \
if self.filename else '.'
targetDirPath = str(QtWidgets.QFileDialog.getExistingDirectory(
self, '%s - Open Directory' % __appname__, defaultOpenDirPath,
QtWidgets.QFileDialog.ShowDirsOnly |
QtWidgets.QFileDialog.DontResolveSymlinks))
self.importDirImages(targetDirPath)
@property
def imageList(self):
lst = []
for i in range(self.fileListWidget.count()):
item = self.fileListWidget.item(i)
lst.append(item.text())
return lst
def importDirImages(self, dirpath, pattern=None, load=True):
self.actions.openNextImg.setEnabled(True)
self.actions.openPrevImg.setEnabled(True)
if not self.mayContinue() or not dirpath:
return
self.lastOpenDir = dirpath
self.filename = None
self.fileListWidget.clear()
for filename in self.scanAllImages(dirpath):
if pattern and pattern not in filename:
continue
label_file = osp.splitext(filename)[0] + '.json'
if self.output_dir:
label_file_without_path = osp.basename(label_file)
label_file = osp.join(self.output_dir, label_file_without_path)
item = QtWidgets.QListWidgetItem(filename)
item.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable)
if QtCore.QFile.exists(label_file) and \
LabelFile.is_label_file(label_file):
item.setCheckState(Qt.Checked)
else:
item.setCheckState(Qt.Unchecked)
self.fileListWidget.addItem(item)
self.openNextImg(load=load)
def scanAllImages(self, folderPath):
extensions = ['.%s' % fmt.data().decode("ascii").lower()
for fmt in QtGui.QImageReader.supportedImageFormats()]
images = []
for root, dirs, files in os.walk(folderPath):
for file in files:
if file.lower().endswith(tuple(extensions)):
relativePath = osp.join(root, file)
images.append(relativePath)
images.sort(key=lambda x: x.lower())
return images