class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.model = Project()
self.view = QTreeView(self)
self.view.setModel(self.model)
self.view.setDragEnabled(True)
self.view.setDragDropMode(QAbstractItemView.InternalMove)
self.setCentralWidget(self.view)
def mousePressEvent(self, e):
print(e.x(), e.y())
return QMainWindow.mousePressEvent(self, e)
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.model = Project()
self.view = QTreeView(self)
self.view.setModel(self.model)
self.view.setDragEnabled(True)
self.view.setDragDropMode(QAbstractItemView.InternalMove)
self.setCentralWidget(self.view)
def mousePressEvent(self, e):
print(e.x(), e.y())
return QMainWindow.mousePressEvent(self, e)
class MVCConfigurationGUI(MVCConfigurationBase):
"""
GUI implementation of MVCConfigurationBase
"""
def __init__(self, configuration):
super().__init__(configuration)
assertMainThread()
srv = Services.getService("MainWindow")
srv.aboutToClose.connect(self._aboutToClose)
confMenu = srv.menuBar().addMenu("&Configuration")
toolBar = srv.getToolBar()
configuration.configNameChanged.connect(self._configNameChanged)
configuration.dirtyChanged.connect(self._dirtyChanged)
style = QApplication.style()
self.actLoad = QAction(
QIcon.fromTheme("document-open",
style.standardIcon(QStyle.SP_DialogOpenButton)),
"Open config", self)
self.actLoad.triggered.connect(self._execLoad)
self.actSave = QAction(
QIcon.fromTheme("document-save",
style.standardIcon(QStyle.SP_DialogSaveButton)),
"Save config", self)
self.actSave.triggered.connect(self._execSaveConfig)
self.actSaveWithGuiState = QAction(
QIcon.fromTheme("document-save",
style.standardIcon(QStyle.SP_DialogSaveButton)),
"Save config sync gui state", self)
self.actSaveWithGuiState.triggered.connect(
self._execSaveConfigWithGuiState)
self.actNew = QAction(
QIcon.fromTheme("document-new",
style.standardIcon(QStyle.SP_FileIcon)),
"New config", self)
self.actNew.triggered.connect(self._execNew)
self.actActivate = QAction(
QIcon.fromTheme("arrow-up", style.standardIcon(QStyle.SP_ArrowUp)),
"Initialize", self)
self.actActivate.triggered.connect(self.activate)
self.actDeactivate = QAction(
QIcon.fromTheme("arrow-down",
style.standardIcon(QStyle.SP_ArrowDown)),
"Deinitialize", self)
self.actDeactivate.triggered.connect(self.deactivate)
confMenu.addAction(self.actLoad)
confMenu.addAction(self.actSave)
confMenu.addAction(self.actSaveWithGuiState)
confMenu.addAction(self.actNew)
confMenu.addAction(self.actActivate)
confMenu.addAction(self.actDeactivate)
toolBar.addAction(self.actLoad)
toolBar.addAction(self.actSave)
toolBar.addAction(self.actNew)
toolBar.addAction(self.actActivate)
toolBar.addAction(self.actDeactivate)
self.recentConfigs = [QAction() for i in range(10)]
self.recentConfigs[0].setShortcut(QKeySequence(Qt.CTRL + Qt.Key_R))
confMenu.addSeparator()
recentMenu = confMenu.addMenu("Recent")
for a in self.recentConfigs:
a.setVisible(False)
a.triggered.connect(self._openRecent)
recentMenu.addAction(a)
self.mainWidget = srv.newDockWidget("Configuration", None,
Qt.LeftDockWidgetArea)
self.treeView = QTreeView(self.mainWidget)
self.treeView.setHeaderHidden(False)
self.treeView.setSelectionMode(QAbstractItemView.NoSelection)
self.treeView.setEditTriggers(self.treeView.EditKeyPressed
| self.treeView.AnyKeyPressed)
self.treeView.setAllColumnsShowFocus(True)
self.treeView.setExpandsOnDoubleClick(False)
self.treeView.setDragEnabled(True)
self.treeView.setDropIndicatorShown(True)
self.treeView.setDragDropMode(QAbstractItemView.DragOnly)
self.mainWidget.setWidget(self.treeView)
self.treeView.setModel(self.model)
self.treeView.header().setStretchLastSection(True)
self.treeView.header().setSectionResizeMode(
0, QHeaderView.ResizeToContents)
self.treeView.doubleClicked.connect(self._onItemDoubleClicked)
self.treeView.setContextMenuPolicy(Qt.CustomContextMenu)
self.treeView.customContextMenuRequested.connect(
self._execTreeViewContextMenu)
# expand applications by default
self.treeView.setExpanded(self.model.index(1, 0), True)
self.delegate = PropertyDelegate(self.model, ITEM_ROLE,
ConfigurationModel.PropertyContent,
self)
self.treeView.setItemDelegate(self.delegate)
self.restoreState()
srv.aboutToClose.connect(self.saveState)
# a list of dock widgets displaying subgraphs
self._graphViews = []
# make sure that the graph views are closed when the config is closed
self._configuration.subConfigRemoved.connect(self._subConfigRemoved)
self._waitForActivated = None
self._waitForOpenState = None
def _execLoad(self):
assertMainThread()
if self._checkDirty():
return
fn, _ = QFileDialog.getOpenFileName(self.mainWidget,
"Load configuration",
self.cfgfile,
filter="*.json")
if fn is not None and fn != "":
logger.debug("Loading config file %s", fn)
try:
self.loadConfig(fn)
except Exception as e: # pylint: disable=broad-except
logger.exception("Error while loading configuration %s: %s",
fn, str(e))
QMessageBox.warning(self.mainWidget,
"Error while loading configuration",
str(e))
def _openRecent(self):
"""
Called when the user clicks on a recent config.
:return:
"""
if self._checkDirty():
return
action = self.sender()
fn = action.data()
try:
self.loadConfig(fn)
except Exception as e: # pylint: disable=broad-except
# catching general exception is wanted here.
logger.exception("Error while loading configuration %s: %s", fn,
str(e))
QMessageBox.warning(self.mainWidget,
"Error while loading configuration", str(e))
def _checkDirty(self):
if self._configuration.dirty():
ans = QMessageBox.question(
None,
"Save changes?",
"There are unsaved changes. Do you want to save them?",
buttons=QMessageBox.Save | QMessageBox.Discard
| QMessageBox.Cancel,
defaultButton=QMessageBox.Save)
if ans == QMessageBox.Save:
self.saveConfig()
return False
if ans == QMessageBox.Cancel:
return True
return False
def _aboutToClose(self, mainWindow):
if self._checkDirty():
mainWindow.ignoreCloseEvent()
def _execNew(self):
assertMainThread()
if self._checkDirty():
return
fn, _ = QFileDialog.getSaveFileName(self.mainWidget,
"New configuration",
".",
filter="*.json")
if fn is not None and fn != "":
logger.debug("Creating config file %s", fn)
self.newConfig(fn)
def _execSaveConfig(self):
if self.configuration().filename() is None:
self._execSaveConfigAs()
else:
self.saveConfig()
def _execSaveConfigWithGuiState(self):
if self.configuration().filename() is None:
self._execSaveConfigAs()
else:
self.saveConfigWithGuiState()
def _execSaveConfigAs(self):
"""
Opens a file dialog to get the save file name and calls saveConfig.
:return:
"""
assertMainThread()
fn, _ = QFileDialog.getSaveFileName(self.mainWidget,
"Save configuration as", ".",
"*.json")
if fn is not None and fn != "":
self.saveConfigAs(fn)
def _addGraphView(self, subConfig):
g = subConfig.getGraph()
# remove already deleted graph views from internal list
valid_graphViews = []
for gv in self._graphViews:
if shiboken2.isValid(gv): # pylint: disable=no-member
valid_graphViews.append(gv)
self._graphViews = valid_graphViews
# check if graph view is already there
for gv in self._graphViews:
if gv.widget().scene().graph == g:
logger.info("Graph view already exists.")
return
# create new graph view
srv = Services.getService("MainWindow")
graphDw = srv.newDockWidget("Graph (%s)" % (subConfig.getName()),
parent=None,
defaultArea=Qt.RightDockWidgetArea,
allowedArea=Qt.RightDockWidgetArea
| Qt.BottomDockWidgetArea)
graphDw.setAttribute(Qt.WA_DeleteOnClose, True)
assert isinstance(graphDw, QDockWidget)
graphView = GraphEditorView(graphDw)
graphView.setScene(GraphScene(subConfig.getGraph(), graphDw))
graphDw.setWidget(graphView)
self._graphViews.append(graphDw)
graphDw.visibleChanged.connect(self._removeGraphViewFromList)
def _subConfigRemoved(self, subConfigName, configType):
g = self._configuration.subConfigByNameAndTye(subConfigName,
configType).getGraph()
for gv in self._graphViews:
if gv.widget().scene().graph == g:
logger.debug("deleting graph view for subconfig %s",
subConfigName)
gv.deleteLater()
def _removeGraphViewFromList(self, visible):
if visible:
return
gv = self.sender()
try:
self._graphViews.remove(gv)
logger.debug("removed graphview from list")
except ValueError:
logger.debug("graphview not in list, ignored")
def _execTreeViewContextMenu(self, point):
index = self.treeView.indexAt(point)
item = self.model.data(index, ITEM_ROLE)
if isinstance(item, ConfigurationModel.SubConfigContent):
m = QMenu()
a1 = QAction("Edit graph")
m.addAction(a1)
a1.triggered.connect(lambda: self._addGraphView(item.subConfig))
if self.model.isApplication(index):
a2 = QAction("Select Application")
a2.triggered.connect(lambda: self.changeActiveApp(
self.model.data(index, Qt.DisplayRole)))
a3 = QAction("Init Application")
a3.triggered.connect(lambda: self._changeActiveAppAndInit(
self.model.data(index, Qt.DisplayRole)))
m.addActions([a2, a3])
pbsrv = Services.getService("PlaybackControl")
m2 = m.addMenu("Init and load sequence")
m3 = m.addMenu("Init, load and play")
s1 = []
s2 = []
for a in pbsrv.recentSeqs:
assert isinstance(a, QAction)
if a.isVisible():
# pylint: disable=cell-var-from-loop
# the below statements are tested and work
aseq = QAction(a.text())
aseq.triggered.connect(lambda arg1=a.data(
), seq=a.data(): self._changeActiveAppInitAndLoad(
self.model.data(index, Qt.DisplayRole), seq, False)
)
s1.append(aseq)
aseq = QAction(a.text())
aseq.triggered.connect(lambda arg1=a.data(
), seq=a.data(): self._changeActiveAppInitAndLoad(
self.model.data(index, Qt.DisplayRole), seq, True))
# pylint: enable=cell-var-from-loop
s2.append(aseq)
m2.addActions(s1)
m3.addActions(s2)
m.exec_(self.treeView.mapToGlobal(point))
return
if self.model.isSubConfigParent(
index) == Configuration.CONFIG_TYPE_APPLICATION:
m = QMenu()
a = QAction("Add application")
m.addAction(a)
a = m.exec_(self.treeView.mapToGlobal(point))
if a is not None:
self._configuration.addNewApplication()
return
if self.model.isSubConfigParent(
index) == Configuration.CONFIG_TYPE_COMPOSITE:
m = QMenu()
a = QAction("Add composite filter")
m.addAction(a)
a = m.exec_(self.treeView.mapToGlobal(point))
if a is not None:
self._configuration.addNewCompositeFilter()
return
def _configNameChanged(self, cfgfile):
logger.debug("_configNameChanged: %s", cfgfile)
assertMainThread()
self.cfgfile = cfgfile
self._dirtyChanged(self._configuration.dirty())
foundIdx = None
for i, a in enumerate(self.recentConfigs):
if a.data() == cfgfile:
foundIdx = i
if foundIdx is None:
foundIdx = len(self.recentConfigs) - 1
for i in range(foundIdx, 0, -1):
self.recentConfigs[i].setText(self.recentConfigs[i - 1].text())
self.recentConfigs[i].setData(self.recentConfigs[i - 1].data())
self.recentConfigs[i].setVisible(
self.recentConfigs[i - 1].data() is not None)
self.recentConfigs[0].setText(cfgfile)
self.recentConfigs[0].setData(cfgfile)
self.recentConfigs[0].setVisible(True)
def _dirtyChanged(self, dirty):
srv = Services.getService("MainWindow")
if self.cfgfile is None:
title = "nexxT: <unnamed>"
else:
title = "nexxT: " + self.cfgfile
if dirty:
title += " *"
srv.setWindowTitle(title)
def _onItemDoubleClicked(self, index):
assertMainThread()
if self.model.isApplication(index):
app = self.model.data(index, Qt.DisplayRole)
self.changeActiveApp(app)
else:
self.treeView.edit(index)
def _changeActiveAppAndInit(self, app):
"""
Call this slot to activate and init an application
:param app: can be either an Application instance or the name of an application
:return:
"""
assertMainThread()
if isinstance(app, str):
app = self.configuration().applicationByName(app)
currentApp = Application.activeApplication
if currentApp is not None:
currentApp = currentApp.getApplication()
self._waitForActivated = app
self.changeActiveApp(app.getName())
def _changeActiveAppInitAndLoad(self, app, sequence, startPlay):
self._waitForOpenState = (app, sequence, startPlay)
self._changeActiveAppAndInit(app)
def appActivated(self, name, app): # pylint: disable=unused-argument
"""
Called when the application is activated.
:param name: the application name
:param app: An ActiveApplication instance.
:return:
"""
assertMainThread()
if app is not None:
self.activeAppStateChange(app.getState())
app.stateChanged.connect(self.activeAppStateChange)
if self._waitForActivated == app.getApplication():
MethodInvoker(self.activate, Qt.QueuedConnection)
else:
self.actActivate.setEnabled(False)
self.actDeactivate.setEnabled(False)
self._waitForActivated = None
def _disconnectSingleShotPlay(self):
assertMainThread()
pbsrv = Services.getService("PlaybackControl")
try:
pbsrv.playbackPaused.disconnect(self._singleShotPlay)
except RuntimeError:
# we are already disconnected.
pass
def _singleShotPlay(self):
assertMainThread()
pbsrv = Services.getService("PlaybackControl")
MethodInvoker(pbsrv.startPlayback, Qt.QueuedConnection)
self._disconnectSingleShotPlay()
def activeAppStateChange(self, newState):
"""
Called when the active application changes its state.
:param newState: the new application's state (see FilterState)
:return:
"""
assertMainThread()
if newState == FilterState.CONSTRUCTED:
self.actActivate.setEnabled(True)
else:
self.actActivate.setEnabled(False)
if newState == FilterState.ACTIVE:
if self._waitForOpenState is not None:
app, pbfile, startPlay = self._waitForOpenState
self._waitForOpenState = None
if app == Application.activeApplication.getApplication(
).getName():
pbsrv = Services.getService("PlaybackControl")
if startPlay:
pbsrv.playbackPaused.connect(self._singleShotPlay)
QTimer.singleShot(2000, self._disconnectSingleShotPlay)
MethodInvoker(pbsrv.browser.setActive, Qt.QueuedConnection,
pbfile)
self.actDeactivate.setEnabled(True)
self.actSaveWithGuiState.setEnabled(False)
else:
self.actDeactivate.setEnabled(False)
self.actSaveWithGuiState.setEnabled(True)
def restoreState(self):
"""
Restore the state of the configuration gui service (namely the recently
open config files). This is saved in QSettings because it is used
across config files.
:return:
"""
logger.debug("restoring config state ...")
settings = QSettings()
v = settings.value("ConfigurationRecentFiles")
if v is not None and isinstance(v, QByteArray):
ds = QDataStream(v)
recentFiles = ds.readQStringList()
idx = 0
for f in recentFiles:
if f != "" and f is not None:
self.recentConfigs[idx].setData(f)
self.recentConfigs[idx].setText(f)
self.recentConfigs[idx].setVisible(True)
idx += 1
if idx >= len(self.recentConfigs):
break
logger.debug("restoring config state done")
def saveState(self):
"""
Save the state of the configuration gui service (namely the recently
open config files). This is saved in QSettings because it is used
across config files.
:return:
"""
logger.debug("saving config state ...")
settings = QSettings()
b = QByteArray()
ds = QDataStream(b, QIODevice.WriteOnly)
l = [
rc.data() for rc in self.recentConfigs
if rc.isVisible() and rc.data() is not None and rc.data() != ""
]
ds.writeQStringList(l)
settings.setValue("ConfigurationRecentFiles", b)
logger.debug("saving config state done (%s)", l)
class ApplicationPage(QWidget):
host: "Host"
def __init__(self, host: "Host", **kwargs):
super().__init__(**kwargs)
self.host = host
self.model = AppStoreModel(self, self.host.app_store)
self._layout()
def _layout(self):
layout = QHBoxLayout(self)
self.setLayout(layout)
self.tree = QTreeView(self)
self.tree.setModel(self.model)
self.tree.setUniformRowHeights(True)
self.tree.setColumnWidth(0, 200)
self.tree.setDragEnabled(True)
self.tree.setDragDropMode(QAbstractItemView.InternalMove)
self.tree.viewport().setAcceptDrops(True)
layout.addWidget(self.tree, 1)
buttons = QVBoxLayout()
buttons.setAlignment(Qt.AlignTop)
add_button = QPushButton(QIcon.fromTheme("list-add"), "", self)
add_button.setToolTip("Add application")
add_button.clicked.connect(self.on_add)
buttons.addWidget(add_button)
mkdir_button = QPushButton(QIcon.fromTheme("folder-new"), "", self)
mkdir_button.setToolTip("Make directory")
mkdir_button.clicked.connect(self.on_mkdir)
buttons.addWidget(mkdir_button)
delete_button = QPushButton(QIcon.fromTheme("list-remove"), "", self)
delete_button.setToolTip("Remove selected item")
delete_button.clicked.connect(self.on_delete)
buttons.addWidget(delete_button)
layout.addLayout(buttons)
def on_add(self):
dialog = QInputDialog(self)
dialog.setLabelText("Enter appconfig.json URL")
if dialog.exec_() == QInputDialog.Rejected:
return
app_url = dialog.textValue().strip()
self.host.app_store.add_app_ui([app_url])
def on_mkdir(self):
dialog = QInputDialog(self)
dialog.setLabelText("Directory name")
if dialog.exec_() == QInputDialog.Rejected:
return
dirname = dialog.textValue().strip()
if not dirname or "/" in dirname:
QMessageBox.critical(self, "Invalid input",
"This directory name cannot be used")
return
self.host.app_store.mkdir(dirname)
def on_delete(self):
data = self.model.mimeData(self.tree.selectedIndexes())
if not data:
return
data = json.loads(
data.data("application/x-qabstractitemmodeldatalist").data())
if data["type"] == "dir":
confirm = QMessageBox.question(
self,
"Remove folder",
f"Remove {data['id']}?\n\nAll applications will be moved to the top level",
)
if confirm == QMessageBox.StandardButton.No:
return
self.host.app_store.rmdir(data["id"])
else:
app = self.host.app_store[data["id"]]
confirm = QMessageBox.question(
self,
"Remove application",
f"Remove {app['appName']}?",
)
if confirm == QMessageBox.StandardButton.No:
return
self.host.app_store.remove_app(data["id"])