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import os
import tempfile
import shutil
import atexit
from PyQt5.QtCore import pyqtSignal, QSettings, QObject
from PyQtAds import QtAds
from dockindockmanager import DockInDockManager
from dockindock import DockInDockWidget
GROUP_PREFIX = "Group"
def findWidget(name, managers: 'list[DockInDockManager]') -> QtAds.CDockWidget:
for mgr in managers:
widget = mgr.findDockWidget(name)
if widget:
return widget
class PerspectiveInfo:
# Partially bypass ADS perspective management, store list here
# and then ADS will only have one perspective loaded
# this is because all docking widgets must exist when a perspective is loaded
# we will guarantee that!
settings = QSettings()
groups: 'dict[str, list[str]]' = {}
class PerspectivesManager(QObject):
perspectivesListChanged = pyqtSignal()
openingPerspective = pyqtSignal()
openedPerspective = pyqtSignal()
def __init__(self, perspectives_folder):
super().__init__()
self.__perspectives_folder = perspectives_folder
self.__perspectives = {}
atexit.register(self.cleanup)
def cleanup(self):
for perspective in self.__perspectives.values():
filename = perspective.settings.fileName()
try:
os.remove(filename)
except FileNotFoundError:
pass
def perspectiveNames(self) -> 'list[str]':
return self.__perspectives.keys()
def addPerspective(self, name: str, widget: DockInDockWidget) -> None:
if self.__perspectives_folder:
self.__perspectives[name] = perspective = PerspectiveInfo()
perspective.settings = self.getSettingsObject(self.getSettingsFileName(name, True))
perspective.groups = widget.getManager().getGroupContents()
# save perspective internally
widget.getManager().addPerspectiveRec(name)
# store it in QSettings object
widget.getManager().savePerspectivesRec(perspective.settings)
# remove internal perspectives
widget.getManager().removePerspectives(widget.getManager().perspectiveNames())
self.perspectivesListChanged.emit()
def openPerspective(name: str, widget: DockInDockWidget) -> None:
assert widget.getTopLevelDockWidget() == widget
if self.__perspectives_folder:
if name in self.__perspectives:
self.openingPerspective.emit()
if widget.canCreateNewGroups():
cur_groups = widget.getManager().allManagers(True, True)
for group in self.__perspectives[name].groups.keys():
found = False
for curgroup in cur_groups:
if curgroup.getPerspectiveGroupName() == group:
found = True
break
if not found:
group = DockInDockManager.getGroupNameFromPersistGroupName(group)
# restore group in file but not in GUI yet
widget.createGroup(group, None)
cur_groups = widget.getManager().allManagers(False, True)
for curgroup in cur_groups:
if curgroup.getPersistGroupName() not in self.__perspectives[name].groups.keys():
widget.destroyGroup(curgroup.parent())
managers = widget.getManager().allManagers(True, True)
for group in self.__perspectives[name].groups().keys():
for mgr in managers:
if mgr.getPersistGroupName() == group:
for widget_name in self.__perspectives[name].groups[group]:
widget = findWidget(widget_name, [mgr])
if widget:
pass # OK, widget is already in the good manager!
else:
widget = findWidget(widget_name, managers)
if widget:
# move dock widget in the same group as it used to be when perspective was saved
# this guarantee load/open perspectives will work smartly
MoveDockWidgetAction.move(widget, mgr)
# internally load perspectives from QSettings
widget.getManager().loadPerspectivesRec(self.__perspectives[name].settings)
# load perspective (update GUI)
widget.getManager().openPerspectiveRec(name)
# remove internal perspectives
widget.getManager().removePerspectives(widget.getManager().perspectiveNames())
self.openedPerspective().emit()
else:
assert False
def removePerspectives(self) -> None:
self.__perspectives.clear()
self.perspectivesListChanged.emit()
def removePerspective(self, name: str) -> None:
del self.__perspectives[name]
self.perspectivesListChanged.emit()
def getSettingsFileName(self, perspective: str, temp: bool) -> str:
name = "perspectives.ini" if not perspective else f"perspectives_{perspective + '.tmp' if temp else perspective + '.ini'}"
return os.path.join(self.__perspectives_folder, name)
def getSettingsObject(self, file_path: str) -> QSettings:
return QSettings(file_path, QSettings.IniFormat)
def loadPerspectives(self) -> None:
if self.__perspectives_folder:
tempfile.mktemp(dir=self.__perspectives_folder)
self.__perspectives.clear()
main_settings = self.getSettingsObject(self.getSettingsFileName("", False))
debug = main_settings.fileName()
size = main_settings.beginReadArray("Perspectives")
for i in range(0, size):
main_settings.setArrayIndex(i)
perspective = main_settings.value("Name")
if perspective:
to_load = self.getSettingsFileName(perspective, False)
loaded = self.getSettingsFileName(perspective, True)
try:
os.remove(loaded)
except FileNotFoundError:
pass
if not shutil.copy(to_load, loaded):
assert False
self.__perspectives[perspective] = PerspectiveInfo()
self.__perspectives[perspective].settings = self.getSettingsObject(loaded)
# load group info:
main_settings.beginGroup(GROUP_PREFIX)
for key in main_settings.allKeys():
self.__perspectives[perspective].groups[key] = main_settings.value(key)
main_settings.endGroup()
else:
assert False
main_settings.endArray()
self.perspectivesListChanged.emit()
def savePerspectives(self) -> None:
if self.__perspectives_folder:
main_settings = self.getSettingsObject(self.getSettingsFileName("", False))
# Save list of perspective and group organization
main_settings.beginWriteArray("Perspectives", len(self.__perspectives))
for i, perspective in enumerate(self.__perspectives.keys()):
main_settings.setArrayIndex(i)
main_settings.setValue("Name", perspective)
main_settings.beginGroup(GROUP_PREFIX)
for group in self.__perspectives[perspective].groups.keys():
main_settings.setValue(group, list(self.__perspectives[perspective].groups[group]))
main_settings.endGroup()
main_settings.endArray()
# Save perspectives themselves
for perspective_name in self.__perspectives.keys():
to_save = self.getSettingsFileName(perspective_name, False)
settings = self.__perspectives[perspective_name].settings
settings.sync()
try:
os.remove(to_save)
except FileNotFoundError:
pass
if not shutil.copy(settings.fileName(), to_save):
assert False
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