From 8f6c4451ac88ed140d0615326e4c5ce8b3c8ca12 Mon Sep 17 00:00:00 2001 From: Sebastien Bourdeauducq Date: Sun, 4 Sep 2016 23:09:26 +0800 Subject: [PATCH] gui/applets: support groups, creating and deleting applet groups, renaming groups, moving applets from one group to another and reordering applets and groups via drag-and-drop --- artiq/gui/applets.py | 319 ++++++++++++++++++++++++++++--------------- 1 file changed, 212 insertions(+), 107 deletions(-) diff --git a/artiq/gui/applets.py b/artiq/gui/applets.py index 22c49284c..4805fca2f 100644 --- a/artiq/gui/applets.py +++ b/artiq/gui/applets.py @@ -305,20 +305,25 @@ class AppletsDock(QtWidgets.QDockWidget): self.main_window = main_window self.datasets_sub = datasets_sub - self.dock_to_checkbox = dict() + self.dock_to_item = dict() self.applet_uids = set() - self.table = QtWidgets.QTableWidget(0, 3) - self.table.setHorizontalHeaderLabels(["Enable", "Name", "Command"]) + self.table = QtWidgets.QTreeWidget() + self.table.setColumnCount(3) + self.table.setHeaderLabels(["Enable", "Name", "Command"]) self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows) self.table.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection) - self.table.horizontalHeader().setStretchLastSection(True) - self.table.horizontalHeader().setSectionResizeMode( + + self.table.header().setStretchLastSection(True) + self.table.header().setSectionResizeMode( QtWidgets.QHeaderView.ResizeToContents) - self.table.verticalHeader().setSectionResizeMode( - QtWidgets.QHeaderView.ResizeToContents) - self.table.verticalHeader().hide() self.table.setTextElideMode(QtCore.Qt.ElideNone) + + self.table.setDragEnabled(True) + self.table.viewport().setAcceptDrops(True) + self.table.setDropIndicatorShown(True) + self.table.setDragDropMode(QtWidgets.QAbstractItemView.InternalMove) + self.setWidget(self.table) completer_delegate = _CompleterDelegate() @@ -327,28 +332,32 @@ class AppletsDock(QtWidgets.QDockWidget): self.table.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu) new_action = QtWidgets.QAction("New applet", self.table) - new_action.triggered.connect(lambda: self.new()) + new_action.triggered.connect(partial(self.new_with_parent, self.new)) self.table.addAction(new_action) templates_menu = QtWidgets.QMenu() for name, template in _templates: action = QtWidgets.QAction(name, self.table) - action.triggered.connect(partial(self.new_template, template)) + action.triggered.connect(partial( + self.new_with_parent, self.new, command=template)) templates_menu.addAction(action) restart_action = QtWidgets.QAction("New applet from template", self.table) restart_action.setMenu(templates_menu) self.table.addAction(restart_action) - restart_action = QtWidgets.QAction("Restart selected applet", self.table) + restart_action = QtWidgets.QAction("Restart selected applet or group", self.table) restart_action.setShortcut("CTRL+R") restart_action.setShortcutContext(QtCore.Qt.WidgetShortcut) restart_action.triggered.connect(self.restart) self.table.addAction(restart_action) - delete_action = QtWidgets.QAction("Delete selected applet", self.table) + delete_action = QtWidgets.QAction("Delete selected applet or group", self.table) delete_action.setShortcut("DELETE") delete_action.setShortcutContext(QtCore.Qt.WidgetShortcut) delete_action.triggered.connect(self.delete) self.table.addAction(delete_action) + new_group_action = QtWidgets.QAction("New group", self.table) + new_group_action.triggered.connect(partial(self.new_with_parent, self.new_group)) + self.table.addAction(new_group_action) - self.table.cellChanged.connect(self.cell_changed) + self.table.itemChanged.connect(self.item_changed) def create(self, uid, name, command): dock = _AppletDock(self.datasets_sub, uid, name, command) @@ -358,122 +367,218 @@ class AppletsDock(QtWidgets.QDockWidget): dock.sigClosed.connect(partial(self.on_dock_closed, dock)) return dock - def cell_changed(self, row, column): - if column == 0: - item = self.table.item(row, column) - if item.checkState() == QtCore.Qt.Checked: - command = self.table.item(row, 2) - if command: - command = command.text() - name = self.table.item(row, 1) - if name is None: - name = "" - else: - name = name.text() - dock = self.create(item.applet_uid, name, command) - item.applet_dock = dock - if item.applet_geometry is not None: - dock.restoreGeometry(item.applet_geometry) - # geometry is now handled by main window state - item.applet_geometry = None - self.dock_to_checkbox[dock] = item - else: + def item_changed(self, item, column): + if item.ty == "applet": + if column == 0: + if item.checkState(0) == QtCore.Qt.Checked: + command = item.text(2) + if command: + name = item.text(1) + dock = self.create(item.applet_uid, name, command) + item.applet_dock = dock + if item.applet_geometry is not None: + dock.restoreGeometry(item.applet_geometry) + # geometry is now handled by main window state + item.applet_geometry = None + self.dock_to_item[dock] = item + else: + dock = item.applet_dock + if dock is not None: + # This calls self.on_dock_closed + dock.close() + elif column == 1 or column == 2: + new_value = item.text(column) dock = item.applet_dock if dock is not None: - # This calls self.on_dock_closed - dock.close() - elif column == 1 or column == 2: - new_value = self.table.item(row, column).text() - dock = self.table.item(row, 0).applet_dock - if dock is not None: - if column == 1: - dock.rename(new_value) - else: - dock.command = new_value + if column == 1: + dock.rename(new_value) + else: + dock.command = new_value + elif item.ty == "group": + # To Qt's credit, it already does everything for us here. + pass + else: + raise ValueError def on_dock_closed(self, dock): - checkbox_item = self.dock_to_checkbox[dock] - checkbox_item.applet_dock = None - checkbox_item.applet_geometry = dock.saveGeometry() + item = self.dock_to_item[dock] + item.applet_dock = None + item.applet_geometry = dock.saveGeometry() asyncio.ensure_future(dock.terminate()) - del self.dock_to_checkbox[dock] - checkbox_item.setCheckState(QtCore.Qt.Unchecked) + del self.dock_to_item[dock] + item.setCheckState(0, QtCore.Qt.Unchecked) - def new(self, uid=None): + def get_untitled(self): + existing_names = set() + def walk(wi): + for i in range(wi.childCount()): + cwi = wi.child(i) + existing_names.add(cwi.text(1)) + walk(cwi) + walk(self.table.invisibleRootItem()) + + i = 1 + name = "untitled" + while name in existing_names: + i += 1 + name = "untitled " + str(i) + return name + + def new(self, uid=None, name=None, command="", parent=None): if uid is None: uid = next(i for i in count() if i not in self.applet_uids) assert uid not in self.applet_uids, uid self.applet_uids.add(uid) - row = self.table.rowCount() - self.table.insertRow(row) - checkbox = QtWidgets.QTableWidgetItem() - checkbox.setFlags(QtCore.Qt.ItemIsSelectable | - QtCore.Qt.ItemIsUserCheckable | - QtCore.Qt.ItemIsEnabled) - checkbox.setCheckState(QtCore.Qt.Unchecked) - checkbox.applet_uid = uid - checkbox.applet_dock = None - checkbox.applet_geometry = None - self.table.setItem(row, 0, checkbox) - self.table.setItem(row, 1, QtWidgets.QTableWidgetItem()) - self.table.setItem(row, 2, QtWidgets.QTableWidgetItem()) - return row + if name is None: + name = self.get_untitled() + item = QtWidgets.QTreeWidgetItem(["", name, command]) + item.ty = "applet" + item.setFlags(QtCore.Qt.ItemIsSelectable | + QtCore.Qt.ItemIsUserCheckable | + QtCore.Qt.ItemIsEditable | + QtCore.Qt.ItemIsDragEnabled | + QtCore.Qt.ItemNeverHasChildren | + QtCore.Qt.ItemIsEnabled) + item.setCheckState(0, QtCore.Qt.Unchecked) + item.applet_uid = uid + item.applet_dock = None + item.applet_geometry = None + item.setIcon(0, QtWidgets.QApplication.style().standardIcon( + QtWidgets.QStyle.SP_ComputerIcon)) + if parent is None: + self.table.addTopLevelItem(item) + else: + parent.addChild(item) + return item - def new_template(self, template): - row = self.new() - self.table.item(row, 2).setText(template) + def new_group(self, name=None, parent=None): + if name is None: + name = self.get_untitled() + item = QtWidgets.QTreeWidgetItem(["", name]) + item.ty = "group" + item.setFlags(QtCore.Qt.ItemIsSelectable | + QtCore.Qt.ItemIsEditable | + QtCore.Qt.ItemIsUserCheckable | + QtCore.Qt.ItemIsAutoTristate | + QtCore.Qt.ItemIsDragEnabled | + QtCore.Qt.ItemIsDropEnabled | + QtCore.Qt.ItemIsEnabled) + item.setIcon(0, QtWidgets.QApplication.style().standardIcon( + QtWidgets.QStyle.SP_DirIcon)) + if parent is None: + self.table.addTopLevelItem(item) + else: + parent.addChild(item) + return item + + def new_with_parent(self, cb, **kwargs): + parent = None + selection = self.table.selectedItems() + if selection: + parent = selection[0] + if parent.ty == "applet": + parent = parent.parent() + if parent is not None: + parent.setExpanded(True) + cb(parent=parent, **kwargs) def restart(self): - selection = self.table.selectedRanges() + selection = self.table.selectedItems() if selection: - row = selection[0].topRow() - dock = self.table.item(row, 0).applet_dock - if dock is not None: - asyncio.ensure_future(dock.restart()) + item = selection[0] + def walk(wi): + if wi.ty == "applet": + dock = wi.applet_dock + if dock is not None: + asyncio.ensure_future(dock.restart()) + elif wi.ty == "group": + for i in range(wi.childCount()): + walk(wi.child(i)) + else: + raise ValueError + walk(item) def delete(self): - selection = self.table.selectedRanges() + selection = self.table.selectedItems() if selection: - row = selection[0].topRow() - item = self.table.item(row, 0) - dock = item.applet_dock - if dock is not None: - # This calls self.on_dock_closed - dock.close() - self.applet_uids.remove(item.applet_uid) - self.table.removeRow(row) + item = selection[0] + + def recursive_delete(wi): + if wi.ty == "applet": + dock = wi.applet_dock + if dock is not None: + # This calls self.on_dock_closed + dock.close() + self.applet_uids.remove(wi.applet_uid) + elif wi.ty == "group": + for i in range(wi.childCount()): + recursive_delete(wi.child(i)) + else: + raise ValueError + recursive_delete(item) + + parent = item.parent() + if parent is None: + parent = self.table.invisibleRootItem() + parent.removeChild(item) async def stop(self): - for row in range(self.table.rowCount()): - dock = self.table.item(row, 0).applet_dock - if dock is not None: - await dock.terminate() + async def walk(wi): + for row in range(wi.childCount()): + cwi = wi.child(row) + if cwi.ty == "applet": + dock = cwi.applet_dock + if dock is not None: + await dock.terminate() + elif cwi.ty == "group": + await walk(cwi) + else: + raise ValueError + await walk(self.table.invisibleRootItem()) - def save_state(self): + def save_state_item(self, wi): state = [] - for row in range(self.table.rowCount()): - uid = self.table.item(row, 0).applet_uid - enabled = self.table.item(row, 0).checkState() == QtCore.Qt.Checked - name = self.table.item(row, 1).text() - command = self.table.item(row, 2).text() - geometry = self.table.item(row, 0).applet_geometry - if geometry is not None: - geometry = bytes(geometry) - state.append((uid, enabled, name, command, geometry)) + for row in range(wi.childCount()): + cwi = wi.child(row) + if cwi.ty == "applet": + uid = cwi.applet_uid + enabled = cwi.checkState(0) == QtCore.Qt.Checked + name = cwi.text(1) + command = cwi.text(2) + geometry = cwi.applet_geometry + if geometry is not None: + geometry = bytes(geometry) + state.append(("applet", uid, enabled, name, command, geometry)) + elif cwi.ty == "group": + name = cwi.text(1) + expanded = cwi.isExpanded() + state_child = self.save_state_item(cwi) + state.append(("group", name, expanded, state_child)) + else: + raise ValueError return state + def save_state(self): + return self.save_state_item(self.table.invisibleRootItem()) + + def restore_state_item(self, state, parent): + for wis in state: + if wis[0] == "applet": + _, uid, enabled, name, command, geometry = wis + item = self.new(uid, name, command, parent=parent) + if geometry is not None: + geometry = QtCore.QByteArray(geometry) + item.applet_geometry = geometry + if enabled: + item.setCheckState(0, QtCore.Qt.Checked) + elif wis[0] == "group": + _, name, expanded, state_child = wis + item = self.new_group(name, parent=parent) + item.setExpanded(expanded) + self.restore_state_item(state_child, item) + else: + raise ValueError("Invalid item state: " + str(wis[0])) + def restore_state(self, state): - for uid, enabled, name, command, geometry in state: - row = self.new(uid) - item = QtWidgets.QTableWidgetItem() - item.setText(name) - self.table.setItem(row, 1, item) - item = QtWidgets.QTableWidgetItem() - item.setText(command) - self.table.setItem(row, 2, item) - if geometry is not None: - geometry = QtCore.QByteArray(geometry) - self.table.item(row, 0).applet_geometry = geometry - if enabled: - self.table.item(row, 0).setCheckState(QtCore.Qt.Checked) + self.restore_state_item(state, None)