Python QListView.currentIndex方法代码示例

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]
class VariableComboBox(QWidget):

    def __init__(self, id, text="Input data", default=[], model=None):
        QWidget.__init__(self)
        self.setToolTip("<p>Select input dataset</p>")
        self.id = id
        if model is None:
            self.model = TreeModel()
        else:
            self.model = model
        self.comboBox = QComboBox()
        self.treeView = QListView(self.comboBox)
        self.connect(self.comboBox, SIGNAL("currentIndexChanged(int)"), 
            self.changeSelectedText)
        self.proxyModel = SortFilterProxyModel()
        self.proxyModel.setDynamicSortFilter(True)
        self.proxyModel.setFilterKeyColumn(1)
        self.proxyModel.setSourceModel(self.model)
        regexp = QRegExp("|".join([r"%s" % i for i in default]))
        self.proxyModel.setFilterRegExp(regexp)
#        self.treeView.header().hide()
        self.currentText = QString()
        self.treeView.setModel(self.proxyModel)

        self.comboBox.setModel(self.proxyModel)
        self.comboBox.setView(self.treeView)
#        self.treeView.hideColumn(1)
#        self.treeView.hideColumn(2)
#        self.treeView.hideColumn(3)
        self.treeView.viewport().installEventFilter(self.comboBox)
        label = QLabel(text)
        hbox = HBoxLayout()
        hbox.addWidget(label)
        hbox.addWidget(self.comboBox)
        self.setLayout(hbox)
        self.changeSelectedText(None)

    def changeSelectedText(self, index):
        item = self.treeView.currentIndex()
        if not item.isValid():
            item = self.proxyModel.index(0,0, QModelIndex())
        tree = self.treeView.model().parentTree(item)
        self.currentText = tree

    def parameterValues(self):
        return {self.id:self.currentText}

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]
class DataTypeKeysWidget(QWidget):
    dataTypeKeySelected = pyqtSignal(str)

    def __init__(self):
        QWidget.__init__(self)

        self.__filter_popup = FilterPopup(self)
        self.__filter_popup.filterSettingsChanged.connect(self.onItemChanged)

        layout = QVBoxLayout()

        self.model = DataTypeKeysListModel()
        self.filter_model = DataTypeProxyModel(self.model)

        filter_layout = QHBoxLayout()

        self.search_box = SearchBox()
        self.search_box.filterChanged.connect(self.setSearchString)
        filter_layout.addWidget(self.search_box)

        filter_popup_button = QToolButton()
        filter_popup_button.setIcon(util.resourceIcon("ide/cog_edit.png"))
        filter_popup_button.clicked.connect(self.showFilterPopup)
        filter_layout.addWidget(filter_popup_button)
        layout.addLayout(filter_layout)

        self.data_type_keys_widget = QListView()
        self.data_type_keys_widget.setModel(self.filter_model)
        self.data_type_keys_widget.selectionModel().selectionChanged.connect(self.itemSelected)

        layout.addSpacing(15)
        layout.addWidget(self.data_type_keys_widget, 2)
        layout.addStretch()

        # layout.addWidget(Legend("Default types", DataTypeKeysListModel.DEFAULT_DATA_TYPE))
        layout.addWidget(Legend("Observations available", DataTypeKeysListModel.HAS_OBSERVATIONS))

        self.setLayout(layout)

    def onItemChanged(self, item):
        self.filter_model.setShowBlockKeys(item["block"])
        self.filter_model.setShowSummaryKeys(item["summary"])
        self.filter_model.setShowGenKWKeys(item["gen_kw"])
        self.filter_model.setShowGenDataKeys(item["gen_data"])
        self.filter_model.setShowCustomPcaKeys(item["custom_pca"])

    def itemSelected(self):
        selected_item = self.getSelectedItem()
        if selected_item is not None:
            self.dataTypeKeySelected.emit(selected_item)

    def getSelectedItem(self):
        """ @rtype: str """
        index = self.data_type_keys_widget.currentIndex()
        source_index = self.filter_model.mapToSource(index)
        item = self.model.itemAt(source_index)
        return item

    def selectDefault(self):
        self.data_type_keys_widget.setCurrentIndex(self.filter_model.index(0, 0))

    def setSearchString(self, filter):
        self.filter_model.setFilterFixedString(filter)

    def showFilterPopup(self):
        self.__filter_popup.show()

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]

#.........这里部分代码省略.........
    def createShortcut(self):
        d = ShortcutDialog(self)
        if self.window().runDialog(d.create) == QDialog.Accepted:
            shortcut = d.getResult()
            shortcut["id"] = str(uuid.uuid4())
            self.quickDesktopModel.addShortcut(shortcut)
        d.deleteLater()

    def createBookmark(self):
        d = BookmarkDialog(self)
        if self.window().runDialog(d.create) == QDialog.Accepted:
            shortcut = {
                    "id": str(uuid.uuid4()),
                    "icon": "",
                    "openwith": "",
                    "dir": "",
            }
            shortcut.update(d.getResult())
            self.quickDesktopModel.addShortcut(shortcut)
        d.deleteLater()

    def createComputerShortcut(self):
        shortcut = {
                "id": str(uuid.uuid4()),
                "name": self.trUtf8("我的电脑"),
                "path": COMPUTER_PATH,
                "icon": "",
                "dir": "",
                "openwith": "",
        }
        self.quickDesktopModel.addShortcut(shortcut)

    def createDocumentsShortcut(self):
        shortcut = {
                "id": str(uuid.uuid4()),
                "name": self.trUtf8("我的文档"),
                "path": DOCUMENTS_PATH,
                "icon": "",
                "dir": "",
                "openwith": "",
        }
        self.quickDesktopModel.addShortcut(shortcut)

    def createPicturesShortcut(self):
        shortcut = {
                "id": str(uuid.uuid4()),
                "name": self.trUtf8("图片收藏"),
                "path": PICTURES_PATH,
                "icon": "",
                "dir": "",
                "openwith": "",
        }
        self.quickDesktopModel.addShortcut(shortcut)

    def createMusicShortcut(self):
        shortcut = {
                "id": str(uuid.uuid4()),
                "name": self.trUtf8("我的音乐"),
                "path": MUSIC_PATH,
                "icon": "",
                "dir": "",
                "openwith": "",
        }
        self.quickDesktopModel.addShortcut(shortcut)

    def renameShortcut(self):
        self.listView.edit(self.listView.currentIndex())

    def removeShortcut(self):
        self.quickDesktopModel.removeShortcut(self.listView.currentIndex())

    def editShortcut(self):
        index = self.listView.currentIndex()
        if not index.isValid():
            return
        shortcut = self.quickDesktopModel.shortcutAt(index)
        url = QUrl.fromUserInput(shortcut["path"])
        if not url.isValid():
            return
        if url.scheme() == "special":
            QMessageBox.information(self, self.trUtf8("编辑快捷方式"), self.trUtf8("不能编辑特殊图标。"))
            return
        elif url.scheme() == "file":
            d = ShortcutDialog(self)
        else:
            d = BookmarkDialog(self)
        if self.window().runDialog(d.edit, shortcut) == QDialog.Accepted:
            shortcut.update(d.getResult())
            self.quickDesktopModel.updateShortcut(shortcut, index)
        d.deleteLater()

    def runQuickDesktopShortcut(self):
        index = self.listView.currentIndex()
        if not index.isValid():
            return
        if not self.quickDesktopModel.runShortcut(index):
            QMessageBox.information(self, self.trUtf8("快捷面板"), \
                    self.trUtf8("不能运行快捷方式。请检查文件是否存在或者程序是否正确。"))
        else:
            self.window().close()

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]

#.........这里部分代码省略.........
        self._upButton = QToolButton(self)
        self._upButton.setDefaultAction(self._upAction)
        self._upButton.setSizePolicy(
            QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)

        self._downAction = QAction(
            "\u2193", self, toolTip="Move down")

        self._downButton = QToolButton(self)
        self._downButton.setDefaultAction(self._downAction)
        self._downButton.setSizePolicy(
            QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)

        vButtonLayout.addWidget(self._upButton)
        vButtonLayout.addWidget(self._downButton)

        gridLayout.addLayout(vButtonLayout, 0, 2, 2, 1)

        hButtonLayout = QHBoxLayout()

        self._addAction = QAction("+", self)
        self._addButton = QToolButton(self)
        self._addButton.setDefaultAction(self._addAction)

        self._removeAction = QAction("-", self)
        self._removeButton = QToolButton(self)
        self._removeButton.setDefaultAction(self._removeAction)
        hButtonLayout.addWidget(self._addButton)
        hButtonLayout.addWidget(self._removeButton)
        hButtonLayout.addStretch(10)
        gridLayout.addLayout(hButtonLayout, 2, 0, 1, 2)

        self.setLayout(gridLayout)
        self._addAction.triggered.connect(self._onAddAction)
        self._removeAction.triggered.connect(self._onRemoveAction)
        self._upAction.triggered.connect(self._onUpAction)
        self._downAction.triggered.connect(self._onDownAction)

    def sizeHint(self):
        size = QWidget.sizeHint(self)
        return QSize(size.width(), 100)

    def _onAddAction(self):
        item = QStandardItem("")
        item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
        self._listView.model().appendRow(item)
        self._listView.setCurrentIndex(item.index())
        self._listView.edit(item.index())

    def _onRemoveAction(self):
        current = self._listView.currentIndex()
        self._listView.model().takeRow(current.row())

    def _onUpAction(self):
        row = self._listView.currentIndex().row()
        model = self._listView.model()
        if row > 0:
            items = model.takeRow(row)
            model.insertRow(row - 1, items)
            self._listView.setCurrentIndex(model.index(row - 1, 0))

    def _onDownAction(self):
        row = self._listView.currentIndex().row()
        model = self._listView.model()
        if row < model.rowCount() and row >= 0:
            items = model.takeRow(row)
            if row == model.rowCount():
                model.appendRow(items)
            else:
                model.insertRow(row + 1, items)
            self._listView.setCurrentIndex(model.index(row + 1, 0))

    def setModel(self, model):
        """ Set a model to select items from
        """
        self._model = model
        self._listView.setItemDelegate(self._MyItemDelegate(self._model, self))

    def addItem(self, *args):
        """ Add a new entry in the list
        """
        item = QStandardItem(*args)
        item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
        self._listView.model().appendRow(item)

    def setItems(self, items):
        self._listView.model().clear()
        for item in items:
            self.addItem(item)

    def items(self):
        order = []
        for row in range(self._listView.model().rowCount()):
            order.append(str(self._listView.model().item(row, 0).text()))
        return order

    def __changed(self):
        self.sortingOrderChanged.emit()

    sortingOrder = property(items, setItems)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]

#.........这里部分代码省略.........
                QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)

        self._addToolButton.setDefaultAction(self._addAction)
        self._updateToolButton.setDefaultAction(self._updateAction)
        self._removeToolButton.setDefaultAction(self._removeAction)

        buttonLayout.addWidget(self._addToolButton)
        buttonLayout.addWidget(self._updateToolButton)
        buttonLayout.addWidget(self._removeToolButton)

        layout.addLayout(buttonLayout)
        self.setLayout(layout)

        self._addAction.triggered.connect(self.addCurrentSelection)
        self._updateAction.triggered.connect(self.updateSelectedSelection)
        self._removeAction.triggered.connect(self.removeSelectedSelection)

        self._setListView.selectionModel().selectionChanged.connect(
            self._onListViewSelectionChanged)
        self.selectionModel = None
        self._selections = []

    def sizeHint(self):
        size = QFrame.sizeHint(self)
        return QSize(size.width(), 200)

    def _onSelectionChanged(self, selected, deselected):
        self.setSelectionModified(True)

    def _onListViewSelectionChanged(self, selected, deselected):
        try:
            index = self._setListView.selectedIndexes()[0]
        except IndexError:
            return
        self.commitSelection(self._proxyModel.mapToSource(index).row())

    def _onSetNameChange(self, item):
        self.selections[item.row()].name = str(item.text())

    def _setButtonStates(self, val):
        self._updateToolButton.setEnabled(val)

    def setSelectionModel(self, selectionModel):
        if self.selectionModel:
            self.selectionModel.selectionChanged.disconnect(
                self._onSelectionChanged)
        self.selectionModel = selectionModel
        self.selectionModel.selectionChanged.connect(self._onSelectionChanged)

    def addCurrentSelection(self):
        item = self.addSelection(
            SelectionByKey(self.selectionModel.selection(),
                           name="New selection",
                           key=(1, 2, 3, 10)))
        index = self._proxyModel.mapFromSource(item.index())
        self._setListView.setCurrentIndex(index)
        self._setListView.edit(index)
        self.setSelectionModified(False)

    def removeSelectedSelection(self):
        i = self._proxyModel.mapToSource(self._setListView.currentIndex()).row()
        self._listModel.takeRow(i)
        del self.selections[i]

    def updateCurentSelection(self):
        i = self._proxyModel.mapToSource(self._setListView.selectedIndex()).row()
        self.selections[i].setSelection(self.selectionModel.selection())
        self.setSelectionModified(False)

    def addSelection(self, selection, name=""):
        self._selections.append(selection)
        item = QStandardItem(selection.name)
        item.setFlags(item.flags() ^ Qt.ItemIsDropEnabled)
        self._listModel.appendRow(item)
        self.setSelectionModified(False)
        return item

    def updateSelectedSelection(self):
        i = self._proxyModel.mapToSource(self._setListView.currentIndex()).row()
        self.selections[i].setSelection(self.selectionModel.selection())
        self.setSelectionModified(False)

    def setSelectionModified(self, val):
        self._selectionModified = val
        self._setButtonStates(val)
        self.selectionModified.emit(bool(val))

    def commitSelection(self, index):
        selection = self.selections[index]
        selection.select(self.selectionModel)

    def setSelections(self, selections):
        self._listModel.clear()
        for selection in selections:
            self.addSelection(selection)

    def selections(self):
        return self._selections

    selections = property(selections, setSelections)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]
class DataTypeKeysWidget(QWidget):
    dataTypeKeySelected = pyqtSignal(str)

    def __init__(self):
        QWidget.__init__(self)

        layout = QVBoxLayout()

        self.model = DataTypeKeysListModel()
        self.filter_model = DataTypeProxyModel(self.model)

        self.search_box = SearchBox()
        self.search_box.filterChanged.connect(self.setSearchString)

        layout.addWidget(self.search_box)

        data_type_model = QStandardItemModel(0, 1)
        item = QStandardItem("Select data types...")

        data_type_model.appendRow(item)

        self.__summary_item = QStandardItem("Summary")
        self.__summary_item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
        self.__summary_item.setData(Qt.Checked, Qt.CheckStateRole)

        data_type_model.appendRow(self.__summary_item)

        self.__block_item = QStandardItem("Block")
        self.__block_item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
        self.__block_item.setData(Qt.Checked, Qt.CheckStateRole)
        data_type_model.appendRow(self.__block_item)

        data_type_model.itemChanged.connect(self.onItemChanged)

        combo = QComboBox()
        combo.setModel(data_type_model)
        layout.addWidget(combo)

        self.data_type_keys_widget = QListView()
        self.data_type_keys_widget.setModel(self.filter_model)
        self.data_type_keys_widget.selectionModel().selectionChanged.connect(self.itemSelected)

        layout.addSpacing(15)
        layout.addWidget(self.data_type_keys_widget, 2)

        layout.addWidget(Legend("Default types", DataTypeKeysListModel.DEFAULT_DATA_TYPE))
        layout.addWidget(Legend("Observations available", DataTypeKeysListModel.HAS_OBSERVATIONS))

        self.setLayout(layout)

    def onItemChanged(self, item):
        assert isinstance(item, QStandardItem)
        checked = item.checkState()==Qt.Checked
        if item == self.__block_item:
            self.filter_model.setShowBlockKeys(checked)
        elif item == self.__summary_item:
            self.filter_model.setShowSummaryKeys(checked)


    def itemSelected(self):
        selected_item = self.getSelectedItem()
        if selected_item is not None:
            self.dataTypeKeySelected.emit(selected_item)


    def getSelectedItem(self):
        """ @rtype: str """
        index = self.data_type_keys_widget.currentIndex()
        source_index = self.filter_model.mapToSource(index)
        item = self.model.itemAt(source_index)
        return item

    def selectDefault(self):
        self.data_type_keys_widget.setCurrentIndex(self.filter_model.index(0, 0))


    def setSearchString(self, filter):
        self.filter_model.setFilterFixedString(filter)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]
class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setupGUI()
        self.job_monitor = HadoopJobMonitor()

    def setupGUI(self):
        layout = QGridLayout()
        self.widget = QWidget()
        self.widget.setLayout(layout)
        self.setCentralWidget(self.widget)
        self.setWindowTitle("Nutch Job Service")

        # create active job list
        active_label = QLabel("Active Hadoop Jobs")
        layout.addWidget(active_label, 0, 0)
        self.lv = QListView()
        layout.addWidget(self.lv, 1, 0, 3, 1)

        # Create buttons
        self.stop_button = QPushButton("Stop")
        self.refresh_button = QPushButton("Refresh")
        button_layout = QVBoxLayout()
        button_layout.addWidget(self.stop_button)
        button_layout.addWidget(self.refresh_button)

        layout.addLayout(button_layout, 1, 1)

        # Start Button
        self.new_job_layout = QHBoxLayout()
        self.new_job_combo = QComboBox()
        self.new_job_combo.addItems(["Inject", "Generate", "Fetch", "Parse", "Solr"])
        self.new_job_button = QPushButton("Start New Job")
        self.new_job_layout.addWidget(self.new_job_combo)
        self.new_job_layout.addWidget(self.new_job_button)
        layout.addLayout(self.new_job_layout, 5, 0)

        # self.statusBar()
        self.connectSlots()

    def load_data(self):
        """
        Loads data from the hadoop job list.
        """

        self.showStatusMessage("Fetching Hadoop job list...")
        print "Loading data..."
        self.job_monitor.fetch_hadoop_job_info()
        self.job_list_model = JobListModel(self.job_monitor, self)
        self.lv.setModel(self.job_list_model)
        self.updateStatusBar()

    def start_new_nob(self):
        """
        Starts a new job according to the selected item in combo box.
        """
        current_text = self.new_job_combo.currentText()
        print "Starting %s" % current_text

    def stop_job(self):
        current_item = self.lv.currentIndex().data(0).toString()
        job_object = self.job_list_model.get_job_object(current_item)
        job_object.stop()

    def connectSlots(self):
        """
        Connects signals to slots.
        """
        self.connect(self.refresh_button, SIGNAL("clicked()"), self.load_data)
        self.connect(self.stop_button, SIGNAL("clicked()"), self.stop_job)
        self.connect(self.new_job_button, SIGNAL("clicked()"), self.start_new_nob)

    def showStatusMessage(self, message):
        self.statusBar().showMessage(message)

    def updateStatusBar(self):
        """
        Updates status bar according to the number of active hadoop jobs.
        """
        self.statusBar().showMessage("%s jobs are active." % self.job_monitor.num_jobs)

# 需要导入模块: from PyQt4.QtGui import QListView [as 别名]
# 或者: from PyQt4.QtGui.QListView import currentIndex [as 别名]

#.........这里部分代码省略.........
        index1 = self.listView.rootIndex()
        index2 = self.proxyModel.mapToSource(index1)
        self.lineEdit.setText(self.model.filePath(index2))
        self.listView.setCurrentIndex(index1)

    def customContext(self, pos):
        index = self.listView.indexAt(pos)
        index = self.proxyModel.mapToSource(index)
        if not index.isValid():
            self.rmAction.setEnabled(False)
            self.openAction.setEnabled(False)
            self.loadAction.setEnabled(False)
        elif not self.model.isDir(index):
            info = self.model.fileInfo(index)
            suffix = info.suffix()
            if suffix in ("Rd","Rdata","RData"):
                self.loadAction.setEnabled(True)
                self.openAction.setEnabled(False)
                self.loadExternal.setEnabled(False)
            elif suffix in ("txt","csv","R","r"):
                self.openAction.setEnabled(True)
                self.loadAction.setEnabled(False)
                self.loadExternal.setEnabled(True)
            else:
                self.loadAction.setEnabled(False)
                self.openAction.setEnabled(False)
                self.loadExternal.setEnabled(True)
        menu = QMenu(self)
        for action in self.actions:
            menu.addAction(action)
        menu.exec_(self.listView.mapToGlobal(pos))

    def openItem(self):
        index = self.listView.currentIndex()
        index = self.proxyModel.mapToSource(index)
        self.emit(SIGNAL("openFileRequest(QString)"),
        self.model.filePath(index))

    def loadItem(self):
        index = self.listView.currentIndex()
        index = self.proxyModel.mapToSource(index)
        self.emit(SIGNAL("loadFileRequest(QString)"),
        self.model.filePath(index))
        
    def externalItem(self):
        index = self.listView.currentIndex()
        index = self.proxyModel.mapToSource(index)
        QDesktopServices.openUrl(QUrl(self.model.filePath(index)))

    def newFolder(self):
        text, ok = QInputDialog.getText(self,
            "New Folder", "Folder name:", QLineEdit.Normal,
            "new_folder")
        if ok:
            index = self.listView.rootIndex()
            index = self.proxyModel.mapToSource(index)
            self.model.mkdir(index, text)

    def setFolder(self):
        index = self.listView.currentIndex()
        index = self.proxyModel.mapToSource(index)
        commands = "setwd('%s')" % self.model.filePath(index)
        self.emitCommands(commands)

    def rmItem(self):
        index = self.listView.currentIndex()