# -*- coding: utf-8 -*-
import functools
import html
import math
import os
import os.path as osp
import re
import webbrowser
import imgviz
import natsort
from qtpy import QtCore
from qtpy import QtGui
from qtpy import QtWidgets
from qtpy.QtCore import Qt
from labelme import PY2
from labelme import __appname__
from labelme.ai import MODELS
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 Shape
from labelme.widgets import BrightnessContrastDialog
from labelme.widgets import Canvas
from labelme.widgets import FileDialogPreview
from labelme.widgets import LabelDialog
from labelme.widgets import LabelListWidget
from labelme.widgets import LabelListWidgetItem
from labelme.widgets import ToolBar
from labelme.widgets import UniqueLabelQListWidget
from labelme.widgets import ZoomWidget
from . import utils
# FIXME
# - [medium] Set max zoom value to something big enough for FitWidth/Window
# TODO(unknown):
# - Zoom is too "steppy".
LABEL_COLORMAP = imgviz.label_colormap()
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
# set default shape colors
Shape.line_color = QtGui.QColor(*self._config["shape"]["line_color"])
Shape.fill_color = QtGui.QColor(*self._config["shape"]["fill_color"])
Shape.select_line_color = QtGui.QColor(
*self._config["shape"]["select_line_color"]
)
Shape.select_fill_color = QtGui.QColor(
*self._config["shape"]["select_fill_color"]
)
Shape.vertex_fill_color = QtGui.QColor(
*self._config["shape"]["vertex_fill_color"]
)
Shape.hvertex_fill_color = QtGui.QColor(
*self._config["shape"]["hvertex_fill_color"]
)
# Set point size from config file
Shape.point_size = self._config["shape"]["point_size"]
super(MainWindow, self).__init__()
self.setWindowTitle(__appname__)
# Whether we need to save or not.
self.dirty = False
self._noSelectionSlot = False
self._copied_shapes = None
# 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 = LabelListWidget()
self.lastOpenDir = None
self.flag_dock = self.flag_widget = None
self.flag_dock = QtWidgets.QDockWidget(self.tr("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.itemSelectionChanged.connect(self.labelSelectionChanged)
self.labelList.itemDoubleClicked.connect(self.editLabel)
self.labelList.itemChanged.connect(self.labelItemChanged)
self.labelList.itemDropped.connect(self.labelOrderChanged)
self.shape_dock = QtWidgets.QDockWidget(self.tr("Polygon Labels"), self)
self.shape_dock.setObjectName("Labels")
self.shape_dock.setWidget(self.labelList)
self.uniqLabelList = UniqueLabelQListWidget()
self.uniqLabelList.setToolTip(
self.tr(
"Select label to start annotating for it. " "Press 'Esc' to deselect."
)
)
if self._config["labels"]:
for label in self._config["labels"]:
item = self.uniqLabelList.createItemFromLabel(label)
self.uniqLabelList.addItem(item)
rgb = self._get_rgb_by_label(label)
self.uniqLabelList.setItemLabel(item, label, rgb)
self.label_dock = QtWidgets.QDockWidget(self.tr("Label List"), self)
self.label_dock.setObjectName("Label List")
self.label_dock.setWidget(self.uniqLabelList)
self.fileSearch = QtWidgets.QLineEdit()
self.fileSearch.setPlaceholderText(self.tr("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(self.tr("File List"), self)
self.file_dock.setObjectName("Files")
fileListWidget = QtWidgets.QWidget()
fileListWidget.setLayout(fileListLayout)
self.file_dock.setWidget(fileListWidget)
self.zoomWidget = ZoomWidget()
self.setAcceptDrops(True)
self.canvas = self.labelList.canvas = Canvas(
epsilon=self._config["epsilon"],
double_click=self._config["canvas"]["double_click"],
num_backups=self._config["canvas"]["num_backups"],
crosshair=self._config["canvas"]["crosshair"],
)
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(
self.tr("&Quit"),
self.close,
shortcuts["quit"],
"quit",
self.tr("Quit application"),
)
open_ = action(
self.tr("&Open\n"),
self.openFile,
shortcuts["open"],
"open",
self.tr("Open image or label file"),
)
opendir = action(
self.tr("Open Dir"),
self.openDirDialog,
shortcuts["open_dir"],
"open",
self.tr("Open Dir"),
)
openNextImg = action(
self.tr("&Next Image"),
self.openNextImg,
shortcuts["open_next"],
"next",
self.tr("Open next (hold Ctl+Shift to copy labels)"),
enabled=False,
)
openPrevImg = action(
self.tr("&Prev Image"),
self.openPrevImg,
shortcuts["open_prev"],
"prev",
self.tr("Open prev (hold Ctl+Shift to copy labels)"),
enabled=False,
)
save = action(
self.tr("&Save\n"),
self.saveFile,
shortcuts["save"],
"save",
self.tr("Save labels to file"),
enabled=False,
)
saveAs = action(
self.tr("&Save As"),
self.saveFileAs,
shortcuts["save_as"],
"save-as",
self.tr("Save labels to a different file"),
enabled=False,
)
deleteFile = action(
self.tr("&Delete File"),
self.deleteFile,
shortcuts["delete_file"],
"delete",
self.tr("Delete current label file"),
enabled=False,
)
changeOutputDir = action(
self.tr("&Change Output Dir"),
slot=self.changeOutputDirDialog,
shortcut=shortcuts["save_to"],
icon="open",
tip=self.tr("Change where annotations are loaded/saved"),
)
saveAuto = action(
text=self.tr("Save &Automatically"),
slot=lambda x: self.actions.saveAuto.setChecked(x),
icon="save",
tip=self.tr("Save automatically"),
checkable=True,
enabled=True,
)
saveAuto.setChecked(self._config["auto_save"])
saveWithImageData = action(
text="Save With Image Data",
slot=self.enableSaveImageWithData,
tip="Save image data in label file",
checkable=True,
checked=self._config["store_data"],
)
close = action(
"&Close",
self.closeFile,
shortcuts["close"],
"close",
"Close current file",
)
toggle_keep_prev_mode = action(
self.tr("Keep Previous Annotation"),
self.toggleKeepPrevMode,
shortcuts["toggle_keep_prev_mode"],
None,
self.tr('Toggle "keep previous annotation" mode'),
checkable=True,
)
toggle_keep_prev_mode.setChecked(self._config["keep_prev"])
createMode = action(
self.tr("Create Polygons"),
lambda: self.toggleDrawMode(False, createMode="polygon"),
shortcuts["create_polygon"],
"objects",
self.tr("Start drawing polygons"),
enabled=False,
)
createRectangleMode = action(
self.tr("Create Rectangle"),
lambda: self.toggleDrawMode(False, createMode="rectangle"),
shortcuts["create_rectangle"],
"objects",
self.tr("Start drawing rectangles"),
enabled=False,
)
createCircleMode = action(
self.tr("Create Circle"),
lambda: self.toggleDrawMode(False, createMode="circle"),
shortcuts["create_circle"],
"objects",
self.tr("Start drawing circles"),
enabled=False,
)
createLineMode = action(
self.tr("Create Line"),
lambda: self.toggleDrawMode(False, createMode="line"),
shortcuts["create_line"],
"objects",
self.tr("Start drawing lines"),
enabled=False,
)
createPointMode = action(
self.tr("Create Point"),
lambda: self.toggleDrawMode(False, createMode="point"),
shortcuts["create_point"],
"objects",
self.tr("Start drawing points"),
enabled=False,
)
createLineStripMode = action(
self.tr("Create LineStrip"),
lambda: self.toggleDrawMode(False, createMode="linestrip"),
shortcuts["create_linestrip"],
"objects",
self.tr("Start drawing linestrip. Ctrl+LeftClick ends creation."),
enabled=False,
)
createAiPolygonMode = action(
self.tr("Create AI-Polygon"),
lambda: self.toggleDrawMode(False, createMode="ai_polygon"),
None,
"objects",
self.tr("Start drawing ai_polygon. Ctrl+LeftClick ends creation."),
enabled=False,
)
createAiPolygonMode.changed.connect(
lambda: self.canvas.initializeAiModel(
name=self._selectAiModelComboBox.currentText()
)
if self.canvas.createMode == "ai_polygon"
else None
)
createAiMaskMode = action(
self.tr("Create AI-Mask"),
lambda: self.toggleDrawMode(False, createMode="ai_mask"),
None,
"objects",
self.tr("Start drawing ai_mask. Ctrl+LeftClick ends creation."),
enabled=False,
)
createAiMaskMode.changed.connect(
lambda: self.canvas.initializeAiModel(
name=self._selectAiModelComboBox.currentText()
)
if self.canvas.createMode == "ai_mask"
else None
)
editMode = action(
self.tr("Edit Polygons"),
self.setEditMode,
shortcuts["edit_polygon"],
"edit",
self.tr("Move and edit the selected polygons"),
enabled=False,
)
delete = action(
self.tr("Delete Polygons"),
self.deleteSelectedShape,
shortcuts["delete_polygon"],
"cancel",
self.tr("Delete the selected polygons"),
enabled=False,
)
duplicate = action(
self.tr("Duplicate Polygons"),
self.duplicateSelectedShape,
shortcuts["duplicate_polygon"],
"copy",
self.tr("Create a duplicate of the selected polygons"),
enabled=False,
)
copy = action(
self.tr("Copy Polygons"),
self.copySelectedShape,
shortcuts["copy_polygon"],
"copy_clipboard",
self.tr("Copy selected polygons to clipboard"),
enabled=False,
)
paste = action(
self.tr("Paste Polygons"),
self.pasteSelectedShape,
shortcuts["paste_polygon"],
"paste",
self.tr("Paste copied polygons"),
enabled=False,
)
undoLastPoint = action(
self.tr("Undo last point"),
self.canvas.undoLastPoint,
shortcuts["undo_last_point"],
"undo",
self.tr("Undo last drawn point"),
enabled=False,
)
removePoint = action(
text="Remove Selected Point",
slot=self.removeSelectedPoint,
shortcut=shortcuts["remove_selected_point"],
icon="edit",
tip="Remove selected point from polygon",
enabled=False,
)
undo = action(
self.tr("Undo\n"),
self.undoShapeEdit,
shortcuts["undo"],
"undo",
self.tr("Undo last add and edit of shape"),
enabled=False,
)
hideAll = action(
self.tr("&Hide\nPolygons"),
functools.partial(self.togglePolygons, False),
shortcuts["hide_all_polygons"],
icon="eye",
tip=self.tr("Hide all polygons"),
enabled=False,
)
showAll = action(
self.tr("&Show\nPolygons"),
functools.partial(self.togglePolygons, True),
shortcuts["show_all_polygons"],
icon="eye",
tip=self.tr("Show all polygons"),
enabled=False,
)
toggleAll = action(
self.tr("&Toggle\nPolygons"),
functools.partial(self.togglePolygons, None),
shortcuts["toggle_all_polygons"],
icon="eye",
tip=self.tr("Toggle all polygons"),
enabled=False,
)
help = action(
self.tr("&Tutorial"),
self.tutorial,
icon="help",
tip=self.tr("Show tutorial page"),
)
zoom = QtWidgets.QWidgetAction(self)
zoomBoxLayout = QtWidgets.QVBoxLayout()
zoomLabel = QtWidgets.QLabel("Zoom")
zoomLabel.setAlignment(Qt.AlignCenter)
zoomBoxLayout.addWidget(zoomLabel)
zoomBoxLayout.addWidget(self.zoomWidget)
zoom.setDefaultWidget(QtWidgets.QWidget())
zoom.defaultWidget().setLayout(zoomBoxLayout)
self.zoomWidget.setWhatsThis(
str(
self.tr(
"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(self.tr("Ctrl+Wheel")),
)
)
self.zoomWidget.setEnabled(False)
zoomIn = action(
self.tr("Zoom &In"),
functools.partial(self.addZoom, 1.1),
shortcuts["zoom_in"],
"zoom-in",
self.tr("Increase zoom level"),
enabled=False,
)
zoomOut = action(
self.tr("&Zoom Out"),
functools.partial(self.addZoom, 0.9),
shortcuts["zoom_out"],
"zoom-out",
self.tr("Decrease zoom level"),
enabled=False,
)
zoomOrg = action(
self.tr("&Original size"),
functools.partial(self.setZoom, 100),
shortcuts["zoom_to_original"],
"zoom",
self.tr("Zoom to original size"),
enabled=False,
)
keepPrevScale = action(
self.tr("&Keep Previous Scale"),
self.enableKeepPrevScale,
tip=self.tr("Keep previous zoom scale"),
checkable=True,
checked=self._config["keep_prev_scale"],
enabled=True,
)
fitWindow = action(
self.tr("&Fit Window"),
self.setFitWindow,
shortcuts["fit_window"],
"fit-window",
self.tr("Zoom follows window size"),
checkable=True,
enabled=False,
)
fitWidth = action(
self.tr("Fit &Width"),
self.setFitWidth,
shortcuts["fit_width"],
"fit-width",
self.tr("Zoom follows window width"),
checkable=True,
enabled=False,
)
brightnessContrast = action(
"&Brightness Contrast",
self.brightnessContrast,
None,
"color",
"Adjust brightness and contrast",
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(
self.tr("&Edit Label"),
self.editLabel,
shortcuts["edit_label"],
"edit",
self.tr("Modify the label of the selected polygon"),
enabled=False,
)
fill_drawing = action(
self.tr("Fill Drawing Polygon"),
self.canvas.setFillDrawing,
None,
"color",
self.tr("Fill polygon while drawing"),
checkable=True,
enabled=True,
)
if self._config["canvas"]["fill_drawing"]:
fill_drawing.trigger()
# Label 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,
saveWithImageData=saveWithImageData,
changeOutputDir=changeOutputDir,
save=save,
saveAs=saveAs,
open=open_,
close=close,
deleteFile=deleteFile,
toggleKeepPrevMode=toggle_keep_prev_mode,
delete=delete,
edit=edit,
duplicate=duplicate,
copy=copy,
paste=paste,
undoLastPoint=undoLastPoint,
undo=undo,
removePoint=removePoint,
createMode=createMode,
editMode=editMode,
createRectangleMode=createRectangleMode,
createCircleMode=createCircleMode,
createLineMode=createLineMode,
createPointMode=createPointMode,
createLineStripMode=createLineStripMode,
createAiPolygonMode=createAiPolygonMode,
createAiMaskMode=createAiMaskMode,
zoom=zoom,
zoomIn=zoomIn,
zoomOut=zoomOut,
zoomOrg=zoomOrg,
keepPrevScale=keepPrevScale,
fitWindow=fitWindow,
fitWidth=fitWidth,
brightnessContrast=brightnessContrast,
zoomActions=zoomActions,
openNextImg=openNextImg,
openPrevImg=openPrevImg,
fileMenuActions=(open_, opendir, save, saveAs, close, quit),
tool=(),
# XXX: need to add some actions here to activate the shortcut
editMenu=(
edit,
duplicate,
copy,
paste,
delete,
None,
undo,
undoLastPoint,
None,
removePoint,
None,
toggle_keep_prev_mode,
),
# menu shown at right click
menu=(
createMode,
createRectangleMode,
createCircleMode,
createLineMode,
createPointMode,
createLineStripMode,
createAiPolygonMode,
createAiMaskMode,
editMode,
edit,
duplicate,
copy,
paste,
delete,
undo,
undoLastPoint,
removePoint,
),
onLoadActive=(
close,
createMode,
createRectangleMode,
createCircleMode,
createLineMode,
createPointMode,
createLineStripMode,
createAiPolygonMode,
createAiMaskMode,
editMode,
brightnessContrast,
),
onShapesPresent=(saveAs, hideAll, showAll, toggleAll),
)
self.canvas.vertexSelected.connect(self.actions.removePoint.setEnabled)
self.menus = utils.struct(
file=self.menu(self.tr("&File")),
edit=self.menu(self.tr("&Edit")),
view=self.menu(self.tr("&View")),
help=self.menu(self.tr("&Help")),
recentFiles=QtWidgets.QMenu(self.tr("Open &Recent")),
labelList=labelMenu,
)
utils.addActions(
self.menus.file,
(
open_,
openNextImg,
openPrevImg,
opendir,
self.menus.recentFiles,
save,
saveAs,
saveAuto,
changeOutputDir,
saveWithImageData,
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,
toggleAll,
None,
zoomIn,
zoomOut,
zoomOrg,
keepPrevScale,
None,
fitWindow,
fitWidth,
None,
brightnessContrast,
),
)
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),
),
)
selectAiModel = QtWidgets.QWidgetAction(self)
selectAiModel.setDefaultWidget(QtWidgets.QWidget())
selectAiModel.defaultWidget().setLayout(QtWidgets.QVBoxLayout())
#
selectAiModelLabel = QtWidgets.QLabel(self.tr("AI Model"))
selectAiModelLabel.setAlignment(QtCore.Qt.AlignCenter)
selectAiModel.defaultWidget().layout().addWidget(selectAiModelLabel)
#
self._selectAiModelComboBox = QtWidgets.QComboBox()
selectAiModel.defaultWidget().layout().addWidget(self._selectAiModelComboBox)
model_names = [model.name for model in MODELS]
self._selectAiModelComboBox.addItems(model_names)
if self._config["ai"]["default"] in model_names:
model_index = model_names.index(self._config["ai"]["default"])
else:
logger.warning(
"Default AI model is not found: %r",
self._config["ai"]["default"],
)
model_index = 0
self._selectAiModelComboBox.setCurrentIndex(model_index)
self._selectAiModelComboBox.currentIndexChanged.connect(
lambda: self.canvas.initializeAiModel(
name=self._selectAiModelComboBox.currentText()
)
if self.canvas.createMode in ["ai_polygon", "ai_mask"]
else None
)
self.tools = self.toolbar("Tools")
self.actions.tool = (
open_,
opendir,
openPrevImg,
openNextImg,
save,
deleteFile,
None,
createMode,
editMode,
duplicate,
delete,
undo,
brightnessContrast,
None,
fitWindow,
zoom,
None,
selectAiModel,
)
self.statusBar().showMessage(str(self.tr("%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.otherData = None
self.zoom_level = 100
self.fit_window = False
self.zoom_values = {} # key=filename, value=(zoom_mode, zoom_value)
self.brightnessContrast_values = {}
self.scroll_values = {
Qt.Horizontal: {},
Qt.Vertical: {},
} # key=filename, value=scroll_value
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")
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))
state = self.settings.value("window/state", QtCore.QByteArray())
self.resize(size)
self.move(position)
# or simply:
# self.restoreGeometry(settings['window/geometry']
self.restoreState(state)
# 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.TopToolBarArea, toolbar)
return toolbar
# Support Functions
def noShapes(self):
return not len(self.labelList)
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.createAiPolygonMode,
self.actions.createAiMaskMode,
self.actions.editMode,
)
utils.addActions(self.menus.edit, actions + self.actions.editMenu)
def setDirty(self):
# Even if we autosave the file, we keep the ability to undo
self.actions.undo.setEnabled(self.canvas.isShapeRestorable)
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)
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)
self.actions.createAiPolygonMode.setEnabled(True)
self.actions.createAiMaskMode.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/labelmeai/labelme/tree/main/examples/tutorial" # NOQA
webbrowser.open(url)
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"):
draw_actions = {
"polygon": self.actions.createMode,
"rectangle": self.actions.createRectangleMode,
"circle": self.actions.createCircleMode,
"point": self.actions.createPointMode,
"line": self.actions.createLineMode,
"linestrip": self.actions.createLineStripMode,
"ai_polygon": self.actions.createAiPolygonMode,
"ai_mask": self.actions.createAiMaskMode,
}
self.canvas.setEditing(edit)
self.canvas.createMode = createMode
if edit:
for draw_action in draw_actions.values():
draw_action.setEnabled(True)
else:
for draw_mode, draw_action in draw_actions.items():
draw_action.setEnabled(createMode != draw_mode)
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).data(Qt.UserRole)
if self._config["validate_label"] in ["exact"]:
if label_i == label:
return True
return False
def editLabel(self, item=None):
if item and not isinstance(item, LabelListWidgetItem):
raise TypeError("item must be LabelListWidgetItem type")
if not self.canvas.editing():
return
if not item:
item = self.currentItem()
if item is None:
return
shape = item.shape()
if shape is None:
return
text, flags, group_id, description = self.labelDialog.popUp(
text=shape.label,
flags=shape.flags,
group_id=shape.group_id,
description=shape.description,
)
if text is None:
return
if not self.validateLabel(text):
self.errorMessage(
self.tr("Invalid label"),
self.tr("Invalid label '{}' with validation type '{}'").format(
text, self._config["validate_label"]
),
)
return
shape.label = text
shape.flags = flags
shape.group_id = group_id
shape.description = description
self._update_shape_color(shape)
if shape.group_id is None:
item.setText(
'{} ●'.format(
html.escape(shape.label), *shape.fill_color.getRgb()[:3]
)
)
else:
item.setText("{} ({})".format(shape.label, shape.group_id))
self.setDirty()
if self.uniqLabelList.findItemByLabel(shape.label) is None:
item = self.uniqLabelList.createItemFromLabel(shape.label)
self.uniqLabelList.addItem(item)
rgb = self._get_rgb_by_label(shape.label)
self.uniqLabelList.setItemLabel(item, shape.label, rgb)
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_shapes):
self._noSelectionSlot = True
for shape in self.canvas.selectedShapes:
shape.selected = False
self.labelList.clearSelection()
self.canvas.selectedShapes = selected_shapes
for shape in self.canvas.selectedShapes:
shape.selected = True
item = self.labelList.findItemByShape(shape)
self.labelList.selectItem(item)
self.labelList.scrollToItem(item)
self._noSelectionSlot = False
n_selected = len(selected_shapes)
self.actions.delete.setEnabled(n_selected)
self.actions.duplicate.setEnabled(n_selected)
self.actions.copy.setEnabled(n_selected)
self.actions.edit.setEnabled(n_selected == 1)
def addLabel(self, shape):
if shape.group_id is None:
text = shape.label
else:
text = "{} ({})".format(shape.label, shape.group_id)
label_list_item = LabelListWidgetItem(text, shape)
self.labelList.addItem(label_list_item)
if self.uniqLabelList.findItemByLabel(shape.label) is None:
item = self.uniqLabelList.createItemFromLabel(shape.label)
self.uniqLabelList.addItem(item)
rgb = self._get_rgb_by_label(shape.label)
self.uniqLabelList.setItemLabel(item, shape.label, rgb)
self.labelDialog.addLabelHistory(shape.label)
for action in self.actions.onShapesPresent:
action.setEnabled(True)
self._update_shape_color(shape)
label_list_item.setText(
'{} ●'.format(
html.escape(text), *shape.fill_color.getRgb()[:3]
)
)
def _update_shape_color(self, shape):
r, g, b = self._get_rgb_by_label(shape.label)
shape.line_color = QtGui.QColor(r, g, b)
shape.vertex_fill_color = QtGui.QColor(r, g, b)
shape.hvertex_fill_color = QtGui.QColor(255, 255, 255)
shape.fill_color = QtGui.QColor(r, g, b, 128)
shape.select_line_color = QtGui.QColor(255, 255, 255)
shape.select_fill_color = QtGui.QColor(r, g, b, 155)
def _get_rgb_by_label(self, label):
if self._config["shape_color"] == "auto":
item = self.uniqLabelList.findItemByLabel(label)
if item is None:
item = self.uniqLabelList.createItemFromLabel(label)
self.uniqLabelList.addItem(item)
rgb = self._get_rgb_by_label(label)
self.uniqLabelList.setItemLabel(item, label, rgb)
label_id = self.uniqLabelList.indexFromItem(item).row() + 1
label_id += self._config["shift_auto_shape_color"]
return LABEL_COLORMAP[label_id % len(LABEL_COLORMAP)]
elif (
self._config["shape_color"] == "manual"
and self._config["label_colors"]
and label in self._config["label_colors"]
):
return self._config["label_colors"][label]
elif self._config["default_shape_color"]:
return self._config["default_shape_color"]
return (0, 255, 0)
def remLabels(self, shapes):
for shape in shapes:
item = self.labelList.findItemByShape(shape)
self.labelList.removeItem(item)
def loadShapes(self, shapes, replace=True):
self._noSelectionSlot = True
for shape in shapes:
self.addLabel(shape)
self.labelList.clearSelection()
self._noSelectionSlot = False
self.canvas.loadShapes(shapes, replace=replace)
def loadLabels(self, shapes):
s = []
for shape in shapes:
label = shape["label"]
points = shape["points"]
shape_type = shape["shape_type"]
flags = shape["flags"]
description = shape.get("description", "")
group_id = shape["group_id"]
other_data = shape["other_data"]
if not points:
# skip point-empty shape
continue
shape = Shape(
label=label,
shape_type=shape_type,
group_id=group_id,
description=description,
mask=shape["mask"],
)
for x, y in points:
shape.addPoint(QtCore.QPointF(x, y))
shape.close()
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)
shape.other_data = other_data
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):
data = s.other_data.copy()
data.update(
dict(
label=s.label.encode("utf-8") if PY2 else s.label,
points=[(p.x(), p.y()) for p in s.points],
group_id=s.group_id,
description=s.description,
shape_type=s.shape_type,
flags=s.flags,
mask=None if s.mask is None else utils.img_arr_to_b64(s.mask),
)
)
return data
shapes = [format_shape(item.shape()) for item in self.labelList]
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(),
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(
self.tr("Error saving label data"), self.tr("%s") % e
)
return False
def duplicateSelectedShape(self):
added_shapes = self.canvas.duplicateSelectedShapes()
for shape in added_shapes:
self.addLabel(shape)
self.setDirty()
def pasteSelectedShape(self):
self.loadShapes(self._copied_shapes, replace=False)
self.setDirty()
def copySelectedShape(self):
self._copied_shapes = [s.copy() for s in self.canvas.selectedShapes]
self.actions.paste.setEnabled(len(self._copied_shapes) > 0)
def labelSelectionChanged(self):
if self._noSelectionSlot:
return
if self.canvas.editing():
selected_shapes = []
for item in self.labelList.selectedItems():
selected_shapes.append(item.shape())
if selected_shapes:
self.canvas.selectShapes(selected_shapes)
else:
self.canvas.deSelectShape()
def labelItemChanged(self, item):
shape = item.shape()
self.canvas.setShapeVisible(shape, item.checkState() == Qt.Checked)
def labelOrderChanged(self):
self.setDirty()
self.canvas.loadShapes([item.shape() for item in self.labelList])
# 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
if items:
text = items[0].data(Qt.UserRole)
flags = {}
group_id = None
description = ""
if self._config["display_label_popup"] or not text:
previous_text = self.labelDialog.edit.text()
text, flags, group_id, description = self.labelDialog.popUp(text)
if not text:
self.labelDialog.edit.setText(previous_text)
if text and not self.validateLabel(text):
self.errorMessage(
self.tr("Invalid label"),
self.tr("Invalid label '{}' with validation type '{}'").format(
text, self._config["validate_label"]
),
)
text = ""
if text:
self.labelList.clearSelection()
shape = self.canvas.setLastLabel(text, flags)
shape.group_id = group_id
shape.description = description
self.addLabel(shape)
self.actions.editMode.setEnabled(True)
self.actions.undoLastPoint.setEnabled(False)
self.actions.undo.setEnabled(True)
self.setDirty()
else:
self.canvas.undoLastLine()
self.canvas.shapesBackups.pop()
def scrollRequest(self, delta, orientation):
units = -delta * 0.1 # natural scroll
bar = self.scrollBars[orientation]
value = bar.value() + bar.singleStep() * units
self.setScroll(orientation, value)
def setScroll(self, orientation, value):
self.scrollBars[orientation].setValue(int(value))
self.scroll_values[orientation][self.filename] = value
def setZoom(self, value):
self.actions.fitWidth.setChecked(False)
self.actions.fitWindow.setChecked(False)
self.zoomMode = self.MANUAL_ZOOM
self.zoomWidget.setValue(value)
self.zoom_values[self.filename] = (self.zoomMode, value)
def addZoom(self, increment=1.1):
zoom_value = self.zoomWidget.value() * increment
if increment > 1:
zoom_value = math.ceil(zoom_value)
else:
zoom_value = math.floor(zoom_value)
self.setZoom(zoom_value)
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.setScroll(
Qt.Horizontal,
self.scrollBars[Qt.Horizontal].value() + x_shift,
)
self.setScroll(
Qt.Vertical,
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 enableKeepPrevScale(self, enabled):
self._config["keep_prev_scale"] = enabled
self.actions.keepPrevScale.setChecked(enabled)
def onNewBrightnessContrast(self, qimage):
self.canvas.loadPixmap(QtGui.QPixmap.fromImage(qimage), clear_shapes=False)
def brightnessContrast(self, value):
dialog = BrightnessContrastDialog(
utils.img_data_to_pil(self.imageData),
self.onNewBrightnessContrast,
parent=self,
)
brightness, contrast = self.brightnessContrast_values.get(
self.filename, (None, None)
)
if brightness is not None:
dialog.slider_brightness.setValue(brightness)
if contrast is not None:
dialog.slider_contrast.setValue(contrast)
dialog.exec_()
brightness = dialog.slider_brightness.value()
contrast = dialog.slider_contrast.value()
self.brightnessContrast_values[self.filename] = (brightness, contrast)
def togglePolygons(self, value):
flag = value
for item in self.labelList:
if value is None:
flag = item.checkState() == Qt.Unchecked
item.setCheckState(Qt.Checked if flag 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(
self.tr("Error opening file"),
self.tr("No such file: %s") % filename,
)
return False
# assumes same name, but json extension
self.status(str(self.tr("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(
self.tr("Error opening file"),
self.tr(
"%s
"
"Make sure %s is a valid label file."
)
% (e, label_file),
)
self.status(self.tr("Error reading %s") % label_file)
return False
self.imageData = self.labelFile.imageData
self.imagePath = osp.join(
osp.dirname(label_file),
self.labelFile.imagePath,
)
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(
self.tr("Error opening file"),
self.tr(
"
Make sure {0} is a valid image file.
"
"Supported image formats: {1}
"
).format(filename, ",".join(formats)),
)
self.status(self.tr("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))
flags = {k: False for k in self._config["flags"] or []}
if self.labelFile:
self.loadLabels(self.labelFile.shapes)
if self.labelFile.flags is not None:
flags.update(self.labelFile.flags)
self.loadFlags(flags)
if self._config["keep_prev"] and self.noShapes():
self.loadShapes(prev_shapes, replace=False)
self.setDirty()
else:
self.setClean()
self.canvas.setEnabled(True)
# set zoom values
is_initial_load = not self.zoom_values
if self.filename in self.zoom_values:
self.zoomMode = self.zoom_values[self.filename][0]
self.setZoom(self.zoom_values[self.filename][1])
elif is_initial_load or not self._config["keep_prev_scale"]:
self.adjustScale(initial=True)
# set scroll values
for orientation in self.scroll_values:
if self.filename in self.scroll_values[orientation]:
self.setScroll(
orientation, self.scroll_values[orientation][self.filename]
)
# set brightness contrast values
dialog = BrightnessContrastDialog(
utils.img_data_to_pil(self.imageData),
self.onNewBrightnessContrast,
parent=self,
)
brightness, contrast = self.brightnessContrast_values.get(
self.filename, (None, None)
)
if self._config["keep_prev_brightness"] and self.recentFiles:
brightness, _ = self.brightnessContrast_values.get(
self.recentFiles[0], (None, None)
)
if self._config["keep_prev_contrast"] and self.recentFiles:
_, contrast = self.brightnessContrast_values.get(
self.recentFiles[0], (None, None)
)
if brightness is not None:
dialog.slider_brightness.setValue(brightness)
if contrast is not None:
dialog.slider_contrast.setValue(contrast)
self.brightnessContrast_values[self.filename] = (brightness, contrast)
if brightness is not None or contrast is not None:
dialog.onNewValue(None)
self.paintCanvas()
self.addRecentFile(self.filename)
self.toggleActions(True)
self.canvas.setFocus()
self.status(str(self.tr("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]()
value = int(100 * value)
self.zoomWidget.setValue(value)
self.zoom_values[self.filename] = (self.zoomMode, 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 enableSaveImageWithData(self, enabled):
self._config["store_data"] = enabled
self.actions.saveWithImageData.setChecked(enabled)
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("recentFiles", self.recentFiles)
# ask the use for where to save the labels
# self.settings.setValue('window/geometry', self.saveGeometry())
def dragEnterEvent(self, event):
extensions = [
".%s" % fmt.data().decode().lower()
for fmt in QtGui.QImageReader.supportedImageFormats()
]
if event.mimeData().hasUrls():
items = [i.toLocalFile() for i in event.mimeData().urls()]
if any([i.lower().endswith(tuple(extensions)) for i in items]):
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if not self.mayContinue():
event.ignore()
return
items = [i.toLocalFile() for i in event.mimeData().urls()]
self.importDroppedImageFiles(items)
# User Dialogs #
def loadRecent(self, filename):
if self.mayContinue():
self.loadFile(filename)
def openPrevImg(self, _value=False):
keep_prev = self._config["keep_prev"]
if QtWidgets.QApplication.keyboardModifiers() == (
Qt.ControlModifier | 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 QtWidgets.QApplication.keyboardModifiers() == (
Qt.ControlModifier | 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 = self.tr("Image & Label files (%s)") % " ".join(
formats + ["*%s" % LabelFile.suffix]
)
fileDialog = FileDialogPreview(self)
fileDialog.setFileMode(FileDialogPreview.ExistingFile)
fileDialog.setNameFilter(filters)
fileDialog.setWindowTitle(
self.tr("%s - Choose Image or Label file") % __appname__,
)
fileDialog.setWindowFilePath(path)
fileDialog.setViewMode(FileDialogPreview.Detail)
if fileDialog.exec_():
fileName = fileDialog.selectedFiles()[0]
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,
self.tr("%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(
self.tr("%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.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"
self._saveFile(self.saveFileDialog())
def saveFileDialog(self):
caption = self.tr("%s - Choose File") % __appname__
filters = self.tr("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,
self.tr("Choose File"),
default_labelfile_name,
self.tr("Label files (*%s)") % LabelFile.suffix,
)
if isinstance(filename, tuple):
filename, _ = 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 = self.tr(
"You are about to permanently delete this label file, " "proceed anyway?"
)
answer = mb.warning(self, self.tr("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 self.noShapes():
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 = self.tr('Save annotations to "{}" before closing?').format(self.filename)
answer = mb.question(
self,
self.tr("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 toggleKeepPrevMode(self):
self._config["keep_prev"] = not self._config["keep_prev"]
def removeSelectedPoint(self):
self.canvas.removeSelectedPoint()
self.canvas.update()
if not self.canvas.hShape.points:
self.canvas.deleteShape(self.canvas.hShape)
self.remLabels([self.canvas.hShape])
if self.noShapes():
for action in self.actions.onShapesPresent:
action.setEnabled(False)
self.setDirty()
def deleteSelectedShape(self):
yes, no = QtWidgets.QMessageBox.Yes, QtWidgets.QMessageBox.No
msg = self.tr(
"You are about to permanently delete {} polygons, " "proceed anyway?"
).format(len(self.canvas.selectedShapes))
if yes == QtWidgets.QMessageBox.warning(
self, self.tr("Attention"), msg, yes | no, yes
):
self.remLabels(self.canvas.deleteSelected())
self.setDirty()
if self.noShapes():
for action in self.actions.onShapesPresent:
action.setEnabled(False)
def copyShape(self):
self.canvas.endMove(copy=True)
for shape in self.canvas.selectedShapes:
self.addLabel(shape)
self.labelList.clearSelection()
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,
self.tr("%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 importDroppedImageFiles(self, imageFiles):
extensions = [
".%s" % fmt.data().decode().lower()
for fmt in QtGui.QImageReader.supportedImageFormats()
]
self.filename = None
for file in imageFiles:
if file in self.imageList or not file.lower().endswith(tuple(extensions)):
continue
label_file = osp.splitext(file)[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(file)
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)
if len(self.imageList) > 1:
self.actions.openNextImg.setEnabled(True)
self.actions.openPrevImg.setEnabled(True)
self.openNextImg()
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()
filenames = self.scanAllImages(dirpath)
if pattern:
try:
filenames = [f for f in filenames if re.search(pattern, f)]
except re.error:
pass
for filename in filenames:
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().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 = os.path.normpath(osp.join(root, file))
images.append(relativePath)
images = natsort.os_sorted(images)
return images