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viewer.py
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viewer.py
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# stdlib
import logging
import sys
import json
import re
from pathlib import Path
from typing import Tuple, List, Optional, DefaultDict, Dict, Union
from collections import defaultdict
from timeit import default_timer as timer
# 3rd party
import numpy as np
from qtpy import QtWidgets, QtGui, QtCore, QtHelp
from qtpy.QtCore import Slot, Signal
import pyqtgraph as pg
# QtAwesome may give us difficulty in Windows 10 see:
# https://github.com/spyder-ide/spyder/issues/2490
import qtawesome as qta
# local
from .display_panel import DisplayPanel, Frame
from .dialogs import ProcessingDialog, About, HelpBrowser, InfoDialog, RenderDialog
from .view_table import ViewTable
from .model import Model, View, Panel
from .rendering import Partition
from ..dsp import processing, tracking
from ..manager.dataset_manager import ManagerWindow
CONFIG_PATH = Path(__file__).with_name('config.json')
ICON_PATH = Path(__file__).with_name('TimeView.icns')
ICON_COLOR = QtGui.QColor('#00F 897B')
MENU_ICON_COLOR = QtGui.QColor('#00897B')
logger = logging.getLogger()
if __debug__:
logger.setLevel(logging.DEBUG)
else:
logger.setLevel(logging.WARN)
class Group(QtCore.QObject):
relay = Signal(name='relay')
def __init__(self) -> None:
super().__init__()
self.views: List[View] = []
def viewsExcludingSource(self, view_to_exclude):
return [view for view in set(self.views)
if view is not view_to_exclude]
def join(self, view):
self.views.append(view)
self.relay.connect(view.renderer.reload)
if isinstance(view.renderer, Partition):
view.renderer.item.updatePartitionBoundaries\
.connect(self.updatePartitionBoundaries)
view.renderer.item.updatePartitionValuePosition\
.connect(self.updatePartitionValuePosition)
view.renderer.item.updatePartitionPosition\
.connect(self.updatePartitionPosition)
view.renderer.item.updatePartitionValue\
.connect(self.updatePartitionValue)
view.renderer.item.delete_segment\
.connect(self.removeSegment)
view.renderer.item.reload.connect(self.relay)
@Slot(int, float, float, name='updatePartitionBoundaries')
def updatePartitionBoundaries(self, index, min_bounds, max_bounds):
view_to_exclude = self.sender().view
for view in self.viewsExcludingSource(view_to_exclude):
view.renderer.receivePartitionBoundaries(index, min_bounds,
max_bounds)
@Slot(int, float, name='updatePartitionValuePosition')
def updatePartitionValuePosition(self, index: int, mid_point: float):
view_to_exclude = self.sender().view
for view in self.viewsExcludingSource(view_to_exclude):
view.renderer.receivePartitionValuePosition(index, mid_point)
@Slot(int, name='updatePartitionPosition')
def updatePartitionPosition(self, index: int):
view_to_exclude = self.sender().view
for view in self.viewsExcludingSource(view_to_exclude):
view.renderer.receivePartitionPosition(index)
@Slot(int, name='removeSegment')
def removeSegment(self, index: int):
view_to_exclude = self.sender().view
for view in self.viewsExcludingSource(view_to_exclude):
view.renderer.receiveRemoveSegment(index)
@Slot(int, name='updatePartitionValue')
def updatePartitionValue(self, index: int):
view_to_exclude = self.sender().view
for view in self.viewsExcludingSource(view_to_exclude):
view.renderer.receivePartitionValue(index)
class ScrollArea(QtWidgets.QScrollArea):
dragEnterSignal = Signal(name='dragEnterSignal')
dragLeaveSignal = Signal(name='dragLeaveSignal')
dropSignal = Signal(name='dropSignal')
def __init__(self, parent, *args, **kwargs):
super().__init__(*args, **kwargs)
self.setParent(parent)
self.dropSignal.connect(self.parent().moveToEnd)
self.setWidgetResizable(True)
self.setAcceptDrops(True)
self.setContentsMargins(0, 0, 0, 0)
def dropEvent(self, event: QtGui.QDropEvent):
self.dropSignal.emit()
event.accept()
def dragLeaveEvent(self, event: QtGui.QDragLeaveEvent):
self.dragLeaveSignal.emit()
event.accept()
def sizeHint(self):
return QtCore.QSize(1000, 810)
def keyPressEvent(self, event: QtGui.QKeyEvent):
if event.type() == QtCore.QEvent.KeyPress:
event.ignore()
class ScrollAreaWidgetContents(QtWidgets.QWidget):
def __init__(self, parent, *args, **kwargs):
super().__init__(*args, **kwargs)
self.setParent(parent)
self.setContentsMargins(0, 0, 0, 0)
self.layout = QtWidgets.QVBoxLayout()
self.layout.setAlignment(QtCore.Qt.AlignTop)
self.layout.setSpacing(2)
self.layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.layout)
self.dragStartPos = QtCore.QPoint(0, 0)
def swapWidgets(self, positions: Tuple[int, int]):
assert len(positions) == 2
if positions[0] == positions[1]:
return
frame_one = self.layout.takeAt(min(positions)).widget()
frame_two = self.layout.takeAt(max(positions) - 1).widget()
self.layout.insertWidget(min(positions), frame_two)
self.layout.insertWidget(max(positions), frame_one)
class Viewer(QtWidgets.QMainWindow):
queryAxesWidths = Signal(name='queryAxisWidths')
queryColWidths = Signal(name='queryColWidths')
setAxesWidth = Signal(float, name='setAxesWidth')
setSplitter = Signal(list, name='setSplitter')
moveSplitterPosition = Signal(name='moveSplitterPosition')
setColWidths = Signal(list, name='setColWidths')
refresh = Signal(name='refresh')
cursorReadoutStatus = Signal(bool, name='cursor_readout_status')
def __init__(self, application):
super().__init__()
self.application = application
self.manager = ManagerWindow("Dataset Manager", self)
if ICON_PATH.exists():
#pix_map_icon = QtGui.QPixmap(str(ICON_PATH), format="PNG")
#self.setWindowIcon(QtGui.QIcon(pix_map_icon))
# this fixes a warning on OSX, but doesn't work at all on windows
self.setWindowIcon(QtGui.QIcon(str(ICON_PATH)))
else:
logging.warning(f'cannot find icon at {ICON_PATH}')
self.resize(QtWidgets.QDesktopWidget()
.availableGeometry(self).size() * 0.5) # change this for video capture
self.model: Model = Model()
self.processor_action = {QtWidgets.QAction(f"{key}", self): processor()
for key, processor
in sorted(processing.get_processor_classes().items())}
self.track_menu = None
self.groups: DefaultDict[int, Group] = defaultdict(Group)
self.setWindowTitle('TimeView')
self.scrollArea = ScrollArea(self)
self.scrollAreaWidgetContents = \
ScrollAreaWidgetContents(self.scrollArea)
self.setCentralWidget(self.scrollArea)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.synchronized = True
self.cursor_readout = False
self.frames: List[Frame] = []
self.selected_frame: Optional[Frame] = None
self.moving_frame: Optional[Frame] = None
self.from_index: Optional[int] = None
self.to_index: Optional[int] = None
self.axis_width = 10
# for storing
self.column_width_hint: List[int] = []
self.all_column_widths: List[Dict[ViewTable, int]] = []
self.reference_plot: Optional[pg.ViewBox] = None
self.min_plot_width = self.width()
self.help_window = self.createHelpWindow()
self.createMenus()
self.statusBar()
self.status('Ready')
self.guiAddPanel()
self.evalTrackMenu()
# At the moment, it makes no sense to start the application without at
# least one panel. In a later version, it may be possible to save/load
# the entire set of panels and their views to save state.
@Slot(name='guiAddPanel')
def guiAddPanel(self, pos: Optional[int]=None):
"""
when adding a panel through the gui, this method determines
where the panel should go, and handles the associated frame selection
"""
if pos is None:
if not self.frames:
pos = 0
elif self.selected_frame:
pos = self.frames.index(self.selected_frame) + 1
else:
pos = len(self.frames)
self.createNewPanel(pos=pos)
self.applySync()
self.selectFrame(self.frames[pos])
def createMenus(self):
menu = self.menuBar()
# to work around OSX bug that requires switching focus away from this
# application, and the coming back to it, to make menu accessible this
# is not necessary when started from the TimeView.app application icon
if __debug__: # I am beginning to think that I always want this
menu.setNativeMenuBar(False)
# File menu
file_menu = menu.addMenu('&File')
exit_action = QtWidgets.QAction('&Exit', self)
exit_action.triggered.connect(QtWidgets.qApp.quit)
exit_action.setShortcut(QtGui.QKeySequence.Quit)
exit_action.setMenuRole(QtWidgets.QAction.QuitRole)
exit_action.setStatusTip('Exit application')
file_menu.addAction(exit_action)
# Track Menu
self.track_menu = menu.addMenu('&Track')
new_partition_action = QtWidgets.QAction('&New Partition', self)
new_partition_action.triggered.connect(self.newPartition)
self.track_menu.addAction(new_partition_action)
self.track_menu.addSeparator()
open_action = QtWidgets.QAction("&Open…", self)
open_action.triggered.connect(self.guiAddView)
open_action.setShortcut(QtGui.QKeySequence("Ctrl+O"))
self.track_menu.addAction(open_action)
save_action = QtWidgets.QAction("&Save…", self)
save_action.triggered.connect(self.guiSaveView)
save_action.setShortcut(QtGui.QKeySequence("Ctrl+S"))
self.track_menu.addAction(save_action)
revert_action = QtWidgets.QAction("&Revert…", self)
revert_action.triggered.connect(self.guiRevertView)
revert_action.setShortcut(QtGui.QKeySequence("Ctrl+R"))
self.track_menu.addAction(revert_action)
self.track_menu.addSeparator()
remove_action = QtWidgets.QAction("&Delete", self)
remove_action.triggered.connect(self.guiDelView)
remove_action.setShortcut(QtGui.QKeySequence("Ctrl+backspace"))
self.track_menu.addAction(remove_action)
self.track_menu.addSeparator()
info_action = QtWidgets.QAction('&Info', self)
info_action.triggered.connect(self.showInfoDialog)
info_action.setShortcut(QtGui.QKeySequence("Ctrl+I"))
self.track_menu.addAction(info_action)
options_action = QtWidgets.QAction("&Rendering Options", self)
options_action.triggered.connect(self.showRenderDialog)
options_action.setShortcut(QtGui.QKeySequence("Ctrl+V")) # If using macOS menu, can't use this shortcut, QT will assign this to "preferences"
self.track_menu.addAction(options_action)
# Panel Menu
panel_menu = menu.addMenu('&Panel')
add_action = QtWidgets.QAction('&New Panel',
self)
add_action.triggered.connect(self.guiAddPanel)
add_action.setShortcut(QtGui.QKeySequence.New)
add_action.setStatusTip('Add Panel')
panel_menu.addAction(add_action)
remove_action = QtWidgets.QAction("&Close Panel",
self)
remove_action.triggered.connect(self.delItem)
remove_action.setShortcut(QtGui.QKeySequence.Close)
remove_action.setStatusTip('remove panel')
panel_menu.addAction(remove_action)
panel_menu.addSeparator()
move_panel_up = QtWidgets.QAction("Move Up", self)
move_panel_up.setShortcut(QtGui.QKeySequence("Ctrl+PgUp"))
move_panel_up.triggered.connect(self.moveUp)
panel_menu.addAction(move_panel_up)
move_panel_down = QtWidgets.QAction("Move Down", self)
move_panel_down.setShortcut(QtGui.QKeySequence("Ctrl+PgDown"))
move_panel_down.triggered.connect(self.moveDown)
panel_menu.addAction(move_panel_down)
panel_menu.addSeparator()
increase_size_action = QtWidgets.QAction('&Increase Height',
self)
increase_size_action.triggered.connect(self.increaseSize)
increase_size_action.setShortcuts([QtGui.QKeySequence.ZoomIn,
QtGui.QKeySequence("Ctrl+=")])
increase_size_action.setStatusTip("Increase the vertical size of the "
"currently selected display panel")
panel_menu.addAction(increase_size_action)
decrease_size_action = QtWidgets.QAction('&Decrease Height',
self)
decrease_size_action.triggered.connect(self.decreaseSize)
decrease_size_action.setShortcut(QtGui.QKeySequence.ZoomOut)
decrease_size_action.setStatusTip("Decrease the vertical size of the "
"currently selected display panel")
panel_menu.addAction(decrease_size_action)
panel_menu.addSeparator()
hide_cursor_info_action = QtWidgets.QAction('Show Cursor', self)
hide_cursor_info_action.triggered.connect(self.toggleCursorReadout)
hide_cursor_info_action.setCheckable(True)
hide_cursor_info_action.setChecked(self.cursor_readout)
hide_cursor_info_action.setStatusTip('Toggle the display of the '
'readout of the cursor position '
'in the plot area')
panel_menu.addAction(hide_cursor_info_action)
toggle_xaxis_label_action = QtWidgets.QAction("Show X-Axis Label", self)
toggle_xaxis_label_action.triggered.connect(self.toggleXAxis)
toggle_xaxis_label_action.setCheckable(True)
toggle_xaxis_label_action.setChecked(self.application.config['show_x-axis_label'])
panel_menu.addAction(toggle_xaxis_label_action)
synchronize_action = QtWidgets.QAction('Synchronize', self)
synchronize_action.triggered.connect(self.changeSync)
synchronize_action.setCheckable(True)
synchronize_action.setChecked(self.synchronized)
panel_menu.addAction(synchronize_action)
# Navigation Menu
navigation = menu.addMenu('&Navigation')
# these changes applies to current panel
# (and thus globally if synchronization is on)
shift_left_action = QtWidgets.QAction("Move &Left",
self)
shift_left_action.triggered.connect(self.shiftLeft)
shift_left_action.setShortcut(QtGui.QKeySequence.MoveToPreviousChar)
navigation.addAction(shift_left_action)
move_right_action = QtWidgets.QAction("Move &Right",
self)
move_right_action.triggered.connect(self.shiftRight)
move_right_action.setShortcut(QtGui.QKeySequence.MoveToNextChar)
move_right_action.setStatusTip("Shift plot half a window to the right")
navigation.addAction(move_right_action)
goto_start_action = QtWidgets.QAction("Go to &Beginning",
self)
goto_start_action.triggered.connect(self.goToBeginning)
goto_start_action.setShortcut(QtGui.QKeySequence("Ctrl+left"))
navigation.addAction(goto_start_action)
goto_end_action = QtWidgets.QAction("Go to &End",
self)
goto_end_action.triggered.connect(self.goToEnd)
goto_end_action.setShortcut(QtGui.QKeySequence("Ctrl+Right"))
navigation.addAction(goto_end_action)
navigation.addSeparator()
zoom_in_action = QtWidgets.QAction("Zoom &In",
self)
zoom_in_action.triggered.connect(self.zoomIn)
zoom_in_action.setShortcut(QtGui.QKeySequence("Up"))
navigation.addAction(zoom_in_action)
zoom_out_action = QtWidgets.QAction("Zoom &Out",
self)
zoom_out_action.triggered.connect(self.zoomOut) # no overlap
zoom_out_action.setShortcut(QtGui.QKeySequence("Down"))
navigation.addAction(zoom_out_action)
zoom_to_match_action =\
QtWidgets.QAction("Zoom to &1:1",
self)
zoom_to_match_action.setShortcut(QtGui.QKeySequence
.MoveToStartOfDocument)
zoom_to_match_action.triggered.connect(self.zoomToMatch)
navigation.addAction(zoom_to_match_action)
zoom_fit_action = QtWidgets.QAction("Zoom to &Fit",
self)
zoom_fit_action.setShortcut(QtGui.QKeySequence.MoveToEndOfDocument)
zoom_fit_action.triggered.connect(self.zoomFit) # show all
navigation.addAction(zoom_fit_action)
# processing Menu
processing_menu = menu.addMenu('&Processing')
for processor_action, processor in self.processor_action.items():
processor_action.triggered.connect(self.showProcessorDialog)
processor_action.setEnabled(False)
processing_menu.addAction(processor_action)
# Window Menu
window_menu = menu.addMenu('&Window')
manager_action = QtWidgets.QAction('&Dataset Manager', self)
manager_action.triggered.connect(self.manager.show)
window_menu.addAction(manager_action)
# Help Menu
help_menu = menu.addMenu('&Help')
help_action = QtWidgets.QAction("&TimeView Help",
self)
help_action.setShortcut(QtGui.QKeySequence.HelpContents)
help_action.triggered.connect(self.help_window.show)
help_action.setStatusTip('show help')
help_menu.addAction(help_action)
about_action = QtWidgets.QAction("&About",
self)
about_action.triggered.connect(self.showAbout)
about_action.setMenuRole(QtWidgets.QAction.AboutRole)
help_menu.addAction(about_action)
def resetEnabledProcessors(self):
for action, processor in self.processor_action.items():
action.setEnabled(False)
for track_name, track_type in processor.acquire.items():
tracks = [view.track
for panel in self.model.panels
for view in panel.views
if isinstance(view.track, track_type)]
if not tracks:
break
else:
action.setEnabled(True)
def toggleCursorReadout(self):
self.cursor_readout = not self.cursor_readout
self.cursorReadoutStatus.emit(self.cursor_readout)
def newPartition(self):
new_track =\
tracking.Partition(np.array([0.,
48000.]).astype(tracking.TIME_TYPE),
np.array(['']).astype('U32'),
48000)
self.selectedDisplayPanel.createViewWithTrack(new_track,
renderer='Partition (editable)')
def getSelectedDisplayPanel(self) -> DisplayPanel:
selected_index = self.model.panels.index(self.model.selected_panel)
return self.frames[selected_index].displayPanel
selectedDisplayPanel = property(getSelectedDisplayPanel)
def getSelectedTrack(self) -> tracking.Track:
panel = self.selectedPanel
track = panel.selected_track()
return track
selectedTrack = property(getSelectedTrack)
def getSelectedView(self) -> View:
return self.selectedPanel.selected_view
selectedView = property(getSelectedView)
def viewRange(self, display_panel=None) -> Tuple[float, float]:
if display_panel is None:
display_panel = self.selectedDisplayPanel
if display_panel is None:
return 0., 1.
view = display_panel.panel.selected_view
if view is None:
vb = display_panel.pw.main_vb
else:
vb = view.renderer.vb
return vb.viewRange()[0]
# TODO: when shifting by menu / keys, implement a *target* system,
# where we are smoothly and exponentially scrolling to the desired target
@Slot(name='pageRight')
def pageRight(self):
span = np.diff(self.viewRange())[0]
self.translateBy(span)
def translateBy(self, delta_x):
view = self.selectedView
if view is None:
return
x_min, x_max = view.renderer.vb.viewRange()[0]
if x_min < 0 and delta_x < 0:
return
self.applySync()
view.renderer.vb.translateBy(x=delta_x)
self.selectedDisplayPanel.pw.alignViews()
if self.synchronized:
reference_view_range = self.reference_plot.viewRange()[0]
for frame in self.frames:
frame_view_range = frame.displayPanel.pw.main_vb.viewRange()[0]
assert reference_view_range == frame_view_range
def scaleBy(self, mag_x):
view = self.selectedView
if view is None:
return
self.applySync()
center = view.renderer.vb.targetRect().center()
padding = view.renderer.vb.suggestPadding(pg.ViewBox.XAxis)
proposed_ranges = [dim * mag_x for dim in view.renderer.vb.viewRange()[0]]
if proposed_ranges[0] < -padding:
shift_right = abs(proposed_ranges[0]) - padding
center.setX(center.x() + shift_right)
view.renderer.vb.scaleBy(x=mag_x, center=center)
self.selectedDisplayPanel.pw.alignViews()
if self.synchronized:
reference_view_range = self.reference_plot.viewRange()[0]
assert all([reference_view_range == frame.displayPanel.pw.main_vb.viewRange()[0]
for frame in self.frames]), 'We are looking into this bug'
def getSelectedPanel(self) -> Panel:
return self.model.selected_panel
def setSelectedPanel(self, panel: Panel):
self.model.set_selected_panel(panel)
selectedPanel = property(getSelectedPanel, setSelectedPanel)
@Slot(name='pageLeft')
def pageLeft(self):
span = np.diff(self.viewRange())[0]
self.translateBy(-span)
@Slot(name='shiftRight')
def shiftRight(self):
span = np.diff(self.viewRange())[0]
shift = span / 10
self.translateBy(shift)
@Slot(name='shiftLeft')
def shiftLeft(self):
vb = self.selectedPanel.selected_view.renderer.vb
x_min, x_max = vb.viewRange()[0]
padding = vb.suggestPadding(pg.ViewBox.XAxis)
span = x_max - x_min
shift = span / 10
if x_min < 0:
return
elif x_min - shift < -padding:
shift = max(x_min, padding)
self.translateBy(-shift)
@Slot(name='goToBeginning')
def goToBeginning(self):
x_min, x_max = self.viewRange()
padding = self.selectedPanel.selected_view.renderer.vb.suggestPadding(1)
self.translateBy(-x_min - padding)
@Slot(name='goToEnd')
def goToEnd(self):
x_min, x_max = self.viewRange()
view = self.selectedView
if view is None:
return
track = view.track
end_time = view.track.duration / view.track.fs
self.translateBy(end_time - x_max)
@Slot(name='zoomFit')
def zoomFit(self):
view = self.selectedView
if view is None:
return
track = view.track
max_t = track.duration / track.fs
span = np.diff(view.renderer.vb.viewRange()[0])[0]
self.scaleBy(max_t / span)
self.goToBeginning()
@Slot(name='zoomToMatch')
def zoomToMatch(self):
"""
where each pixel represents exactly one sample at the
highest-available sampling-frequency
:return:
"""
view = self.selectedPanel.selected_view
if view is None:
return
vb = view.renderer.vb
pixels = vb.screenGeometry().width()
mag_span = pixels / self.selectedTrack.fs
span = np.diff(self.viewRange())[0]
mag = mag_span / span
self.scaleBy(mag)
@Slot(name='zoomIn')
def zoomIn(self):
view = self.selectedPanel.selected_view
if view is None:
return
vb = view.renderer.vb
x_range = np.diff(vb.viewRange()[0])
minXRange = vb.getState()['limits']['xRange'][0]
zoom = 0.9
if minXRange / x_range < zoom:
pass
elif zoom < minXRange / x_range <= 1.0:
zoom = minXRange / x_range
else:
return
self.scaleBy(zoom)
@Slot(name='zoomOut')
def zoomOut(self):
self.scaleBy(1.1)
@Slot(name='increaseSize')
def increaseSize(self):
self.selected_frame.increaseSize()
@Slot(name='decreaseSize')
def decreaseSize(self):
self.selected_frame.decreaseSize()
@Slot(name='showInfoDialog')
def showInfoDialog(self):
info_dialog = InfoDialog(str(self.selectedTrack))
info_dialog.exec_()
@Slot(name='showProcessorDialog')
def showProcessorDialog(self):
processor = self.processor_action[self.sender()]
processing_dialog = ProcessingDialog(self, processor)
processing_dialog.show()
@Slot(tuple, name='finishedProcessing')
def insert_processed_tracks(self, new_tracks: List[processing.Tracks]):
for new_track in new_tracks:
self.getSelectedDisplayPanel().createViewWithTrack(new_track)
def status(self, msg: str, timeout: int=3000):
self.statusBar().showMessage(msg, timeout)
def joinGroup(self, view):
group = self.groups[id(view.track)]
group.join(view)
def changeSync(self):
self.synchronized = not self.synchronized
self.reference_plot = self.selectedDisplayPanel.pw.main_vb
self.applySync()
def applySync(self):
if self.synchronized:
self.synchronize()
else:
self.desynchronize()
def synchronize(self):
self.reference_plot = self.selectedDisplayPanel.pw.main_vb
assert isinstance(self.reference_plot, pg.ViewBox)
x_min, x_max = self.reference_plot.viewRange()[0]
for frame in self.frames:
if frame.displayPanel.pw.main_vb is self.reference_plot:
continue
frame.displayPanel.pw.main_vb.setXLink(self.reference_plot)
if frame.displayPanel.panel.selected_view:
frame.displayPanel.panel.selected_view.renderer.vb.setXRange(x_min, x_max, padding=0)
def desynchronize(self):
self.reference_plot = None
for frame in self.frames:
frame.displayPanel.pw.main_vb.setXLink(frame.displayPanel.pw.main_vb)
def toggleXAxis(self):
self.application.config['show_x-axis_label'] = not self.application.config['show_x-axis_label']
for frame in self.frames:
frame.displayPanel.pw.axis_bottom.showLabel(self.application.config['show_x-axis_label'])
def createNewPanel(self, pos=None):
frame = Frame(main_window=self)
w = DisplayPanel(frame=frame)
w.pw.setAxesWidths(self.axis_width)
self.queryAxesWidths.connect(w.pw.updateWidestAxis)
self.setAxesWidth.connect(w.pw.setAxesWidths)
self.moveSplitterPosition.connect(w.setSplitterPosition)
self.setSplitter.connect(w.table_splitter.setSizes_)
self.setColWidths.connect(w.view_table.setColumnWidths)
self.queryColWidths.connect(w.view_table.calcColumnWidths)
w.table_splitter.setSizes([1, w.view_table.viewportSizeHint().width()])
frame.layout.addWidget(w)
frame.displayPanel = w
if pos is not None:
insert_index = pos
elif self.selected_frame:
insert_index = self.frames.index(self.selected_frame) + 1
else:
insert_index = None
panel = self.model.new_panel(pos=insert_index)
w.loadPanel(panel)
self.addFrame(frame, insert_index)
self.applySync()
def delItem(self):
if self.selected_frame is None:
logging.debug('no frame is selected for debug')
return
remove_index = self.frames.index(self.selected_frame)
self.model.remove_panel(remove_index)
self.removeFrame(self.selected_frame)
if not self.frames:
self.selected_frame = None
self.reference_plot = None
self.guiAddPanel()
self.selectFrame(self.frames[-1])
elif remove_index == len(self.frames):
self.selectFrame(self.frames[-1])
else:
self.selectFrame(self.frames[remove_index])
self.applySync()
@Slot(int, name='viewMoved')
def viewMoved(self, panel_index):
view_to_add = self.model.panels[panel_index].views[-1]
self.frames[panel_index].displayPanel.view_table.addView(view_to_add,
setColor=False)
def addFrame(self, frame: Frame, index=None):
if not index:
index = len(self.frames)
self.frames.insert(index, frame)
self.scrollAreaWidgetContents.layout.insertWidget(index, frame)
self.updateFrames()
def removeFrame(self, frame_to_remove: Frame):
if frame_to_remove.displayPanel.pw.main_vb is self.reference_plot:
self.reference_plot = None
self.frames.remove(frame_to_remove)
self.scrollAreaWidgetContents.layout.removeWidget(frame_to_remove)
frame_to_remove.deleteLater()
self.updateFrames()
def updateFrames(self):
self.scrollArea.updateGeometry()
for panel, frame in zip(self.model.panels, self.frames):
frame.displayPanel.handle.updateLabel()
assert frame.displayPanel.panel == panel
def swapFrames(self, positions: Tuple[int, int]):
self.scrollAreaWidgetContents.swapWidgets(positions)
self.frames[positions[0]], self.frames[positions[1]] = \
self.frames[positions[1]], self.frames[positions[0]]
self.model.panels[positions[0]], self.model.panels[positions[1]] =\
self.model.panels[positions[1]], self.model.panels[positions[0]]
self.updateFrames()
@Slot(list, name='determineColumnWidths')
def determineColumnWidths(self, widths: List[int]):
if not self.all_column_widths:
self.all_column_widths = [{self.sender(): width} for width in widths]
else:
for index, width in enumerate(widths):
self.all_column_widths[index][self.sender()] = width
self.column_width_hint = [max(column.values())
for column in self.all_column_widths]
self.setColWidths.emit(self.column_width_hint)
self.moveSplitterPosition.emit()
@Slot(name='moveUp')
def moveUp(self):
index = self.frames.index(self.selected_frame)
if index == 0:
return
self.swapFrames((index, index - 1))
@Slot(name='moveDown')
def moveDown(self):
index = self.frames.index(self.selected_frame)
if index == len(self.frames) - 1:
return
self.swapFrames((index, index + 1))
@Slot(name='selectNext')
def selectNext(self):
index = self.frames.index(self.selected_frame)
if index == len(self.frames) - 1:
return
else:
self.selectFrame(self.frames[index + 1])
@Slot(name='selectPrevious')
def selectPrevious(self):
index = self.frames.index(self.selected_frame)
if index == 0:
return
else:
self.selectFrame(self.frames[index - 1])
@Slot(QtWidgets.QFrame, name='selectFrame')
def selectFrame(self, frame_to_select: Frame):
assert isinstance(frame_to_select, Frame)
assert frame_to_select in self.frames
if self.selected_frame is not None:
self.selected_frame.resetStyle()
self.selected_frame = frame_to_select
self.selected_frame.setFocus(QtCore.Qt.ShortcutFocusReason)
self.selected_frame.setStyleSheet("""
Frame {
border: 3px solid red;
}
""")
index = self.frames.index(self.selected_frame)
self.model.set_selected_panel(self.model.panels[index])
if self.synchronized and self.reference_plot is None:
self.reference_plot = self.selectedDisplayPanel.pw.main_vb
self.evalTrackMenu()
selected_frame_index = self.frames.index(frame_to_select)
selected_panel_index = self.model.panels.index(self.selectedPanel)
assert selected_frame_index == selected_panel_index
@Slot(QtWidgets.QFrame, name='frameToMove')
def frameToMove(self, frame_to_move: Frame):
self.from_index = self.frames.index(frame_to_move)
@Slot(QtWidgets.QFrame, name='whereToInsert')
def whereToInsert(self, insert_here: Frame):
self.to_index = self.frames.index(insert_here)
if self.to_index == self.from_index:
self.from_index = self.to_index = None
return
self.moveFrame()
def moveFrame(self):
if self.to_index is None or self.from_index is None:
logging.debug('To and/or From index not set properly')
return
frame = self.frames[self.from_index]
self.scrollAreaWidgetContents.layout.removeWidget(frame)
self.frames.insert(self.to_index, self.frames.pop(self.from_index))
self.model.move_panel(self.to_index, self.from_index)
self.scrollAreaWidgetContents.layout.insertWidget(self.to_index,
frame)
self.selectFrame(self.frames[self.to_index])
self.updateFrames()
# Resetting moving parameters
self.from_index = self.to_index = None
@Slot(name='moveToEnd')
def moveToEnd(self):
self.frameToMove(self.selected_frame)
self.to_index = len(self.frames) - 1
self.moveFrame()
@Slot(name='checkAxesWidths')
def checkAxesWidths(self):
widths = [axis.preferredWidth()
for frame in self.frames
for axis in frame.displayPanel.pw.axes.values()]
if not widths:
return
axis_width = max(widths)
if axis_width != self.axis_width:
self.axis_width = axis_width
self.setAxesWidth.emit(self.axis_width)
@staticmethod
def showAbout():
about_box = About()
about_box.exec_()
def createHelpWindow(self):
# http://www.walletfox.com/course/qhelpengineexample.php
help_path = (Path(__file__).parent / 'TimeView.qhc').resolve()
assert help_path.exists()
help_engine = QtHelp.QHelpEngine(str(help_path))
help_engine.setupData()
tab_widget = QtWidgets.QTabWidget()
tab_widget.setMaximumWidth(400)
tab_widget.addTab(help_engine.contentWidget(), "Contents")
tab_widget.addTab(help_engine.indexWidget(), "Index")
text_viewer = HelpBrowser(help_engine)
url = "qthelp://org.sphinx.timeview.1.0/doc/index.html"
text_viewer.setSource(QtCore.QUrl(url))
help_engine.contentWidget()\
.linkActivated['QUrl'].connect(text_viewer.setSource)
help_engine.indexWidget()\
.linkActivated['QUrl', str].connect(text_viewer.setSource)
horiz_splitter = QtWidgets.QSplitter(QtCore.Qt.Horizontal)
horiz_splitter.insertWidget(0, tab_widget)
horiz_splitter.insertWidget(1, text_viewer)
help_window = QtWidgets.QDockWidget('Help', self)
help_window.setWidget(horiz_splitter)
help_window.hide()
self.addDockWidget(QtCore.Qt.BottomDockWidgetArea, help_window)
return help_window
@Slot(name='guiAddView')
def guiAddView(self,
file_name: Union[str, List, Path, None]=None,
renderer: Optional[str]=None,
**kwargs):
if file_name is None:
file_name, _ =\
QtWidgets.QFileDialog.getOpenFileNames(self,
"Add Track to Panel",
self.application.config['working_directory'],
"Track and X/EDF Files (*.wav *.lab *.tmv *.xdf *.edf);;\
All Files (*)",
options=QtWidgets.QFileDialog.Options())
if isinstance(file_name, str):
# panel_index = self.model.panels.index(self.selectedPanel)
self.application.add_view_from_file(Path(file_name))
self.application.config['working_directory'] = str(Path(file_name).parent)
elif isinstance(file_name, List):
if len(file_name):
for f in file_name:
#self.guiAddPanel() # it's difficult to guess what the user really wants
self.application.add_view_from_file(Path(f))
self.application.config['working_directory'] = str(Path(f).parent)
else:
raise Exception
@Slot(name='guiSaveView')
def guiSaveView(self):
"""identifies the selected view and removes it"""
view = self.selectedView
if view is None:
return
track = view.track
file_name, _ = \
QtWidgets.QFileDialog.getSaveFileName(self,
"Save Track",
str(Path(self.application.config['working_directory']) / track.path.name),
f"Files (*{track.default_suffix})")
if file_name:
track.write(file_name)
track.path = Path(file_name)
# TODO: update view table to show you name
self.application.config['working_directory'] = str(Path(file_name).parent)
@Slot(name='guiRevertView')
def guiRevertView(self):
"""identifies the selected view and reverts to contents on disk"""
view = self.selectedView
if view is None:
return
reply = QtWidgets.QMessageBox.question(self,
'Message',
'Are you sure you want to revert to the contents on disk? All changes since loading will be lost',
QtWidgets.QMessageBox.Yes, QtWidgets.QMessageBox.Cancel)
if reply == QtWidgets.QMessageBox.Yes:
track_path = str(view.track.path)
view.track = view.track.read(view.track.path)
new_track = view.track.read(view.track.path)
view.track = new_track
view.renderer.track = new_track # TODO: change to render property that pulls the track from the view
view.renderer.reload()
@Slot(name='guiDelView')
def guiDelView(self):
"""identifies the selected view and removes it"""
if self.selectedView is None:
return
view_to_remove = self.selectedView
self.selectedDisplayPanel.removeViewFromChildren(view_to_remove)
self.selectedDisplayPanel.delViewFromModel(view_to_remove)
self.evalTrackMenu()