Python QTreeView.setCurrentIndex方法代码示例

# 需要导入模块: from PyQt5.Qt import QTreeView [as 别名]
# 或者: from PyQt5.Qt.QTreeView import setCurrentIndex [as 别名]
class ShortcutConfig(QWidget):  # {{{

    changed_signal = pyqtSignal()

    def __init__(self, parent=None):
        QWidget.__init__(self, parent)
        self._layout = l = QGridLayout()
        self.setLayout(self._layout)
        self.header = QLabel(_('Double click on any entry to change the'
            ' keyboard shortcuts associated with it'))
        l.addWidget(self.header, 0, 0, 1, 3)
        self.view = QTreeView(self)
        self.view.setAlternatingRowColors(True)
        self.view.setHeaderHidden(True)
        self.view.setAnimated(True)
        l.addWidget(self.view, 1, 0, 1, 3)
        self.delegate = Delegate()
        self.view.setItemDelegate(self.delegate)
        self.delegate.sizeHintChanged.connect(self.editor_opened,
                type=Qt.QueuedConnection)
        self.delegate.changed_signal.connect(self.changed_signal)
        self.search = SearchBox2(self)
        self.search.initialize('shortcuts_search_history',
                help_text=_('Search for a shortcut by name'))
        self.search.search.connect(self.find)
        l.addWidget(self.search, 2, 0, 1, 1)
        self.nb = QPushButton(QIcon(I('arrow-down.png')), _('&Next'), self)
        self.pb = QPushButton(QIcon(I('arrow-up.png')), _('&Previous'), self)
        self.nb.clicked.connect(self.find_next)
        self.pb.clicked.connect(self.find_previous)
        l.addWidget(self.nb, 2, 1, 1, 1)
        l.addWidget(self.pb, 2, 2, 1, 1)
        l.setColumnStretch(0, 100)

    def restore_defaults(self):
        self._model.restore_defaults()
        self.changed_signal.emit()

    def commit(self):
        if self.view.state() == self.view.EditingState:
            self.delegate.accept_changes()
        self._model.commit()

    def initialize(self, keyboard):
        self._model = ConfigModel(keyboard, parent=self)
        self.view.setModel(self._model)

    def editor_opened(self, index):
        self.view.scrollTo(index, self.view.EnsureVisible)

    @property
    def is_editing(self):
        return self.view.state() == self.view.EditingState

    def find(self, query):
        if not query:
            return
        try:
            idx = self._model.find(query)
        except ParseException:
            self.search.search_done(False)
            return
        self.search.search_done(True)
        if not idx.isValid():
            info_dialog(self, _('No matches'),
                    _('Could not find any shortcuts matching %s')%query,
                    show=True, show_copy_button=False)
            return
        self.highlight_index(idx)

    def highlight_index(self, idx):
        self.view.scrollTo(idx)
        self.view.selectionModel().select(idx,
                self.view.selectionModel().ClearAndSelect)
        self.view.setCurrentIndex(idx)
        self.view.setFocus(Qt.OtherFocusReason)

    def find_next(self, *args):
        idx = self.view.currentIndex()
        if not idx.isValid():
            idx = self._model.index(0, 0)
        idx = self._model.find_next(idx,
                unicode(self.search.currentText()))
        self.highlight_index(idx)

    def find_previous(self, *args):
        idx = self.view.currentIndex()
        if not idx.isValid():
            idx = self._model.index(0, 0)
        idx = self._model.find_next(idx,
            unicode(self.search.currentText()), backwards=True)
        self.highlight_index(idx)

    def highlight_group(self, group_name):
        idx = self.view.model().index_for_group(group_name)
        if idx is not None:
            self.view.expand(idx)
            self.view.scrollTo(idx, self.view.PositionAtTop)
            self.view.selectionModel().select(idx,
                    self.view.selectionModel().ClearAndSelect)
#.........这里部分代码省略.........

# 需要导入模块: from PyQt5.Qt import QTreeView [as 别名]
# 或者: from PyQt5.Qt.QTreeView import setCurrentIndex [as 别名]

#.........这里部分代码省略.........
    @pyqtSlot(QModelIndex)
    def onDoubleClick(self, index):
        """open SampleView or ProjectView
        """
        nodetype = self.model.nodeType(index)
        if nodetype == "Project":
            project = self.model.data(index, Qt.DisplayRole)
            status = self.model.data(self.model.parent(index), Qt.DisplayRole)
            self.changed_projects.emit(project, status)
            self.change_view.emit(3)
            self.log.debug("Navigation emitted changed_projects & change_view to ProjectView")
            
        elif nodetype == "Sample":
            sample_list = self.model.data(index, Qt.DisplayRole).split()
            sample = sample_list[0]
            if len(sample_list) > 1:
                nr = int(sample_list[1][1:-1])
            else:
                nr = 1
            project = self.model.data(self.model.parent(index), Qt.DisplayRole)
            status = self.model.data(self.model.parent(self.model.parent(index)), Qt.DisplayRole)
            self.changed_allele.emit(sample, nr, project)
            self.change_view.emit(4)
            self.log.debug("Navigation emitted changed_alleles & change_view to AlleleView")
                    
    @pyqtSlot(str)
    def select_project(self, project):
        """looks for <project> in the tree-model and selects it if found;
        selects it and returns its index 
        """
        for top_node in [self.open_node, self.closed_node]:
            index = self.model.findValue(top_node, project)
            if index.isValid():
                self.tree.setCurrentIndex(index)
                return index
        return QModelIndex()
        
    @pyqtSlot(str)
    def select_sample(self, project, sample, nr):
        """looks for <sample> in <project> in the tree-model and selects it if found;
        selects it and returns its index
        """
        pindex = self.select_project(project)
        if int(nr) > 1:
            sample = "{} ({})".format(sample, nr)
        index = self.model.findValue(pindex, sample)
        if index.isValid():
            self.tree.setCurrentIndex(index)
            return index       
        return QModelIndex()
    
    def delete_sample(self, sample, nr, project, status):
        """delete a sample from the database & file system
        """
        self.log.debug("Attempting to delete sample '{}' allele {} of project '{}' from database...".format(sample, nr, project))
        if self.settings["login"] == "admin":
            pass
        else:
            pwd, ok = QInputDialog.getText(self, "Enter Password", "Please provide password:", QLineEdit.Password)
            if ok:
                if pwd == "ichdarfdas":
                    pass
                else:
                    return
            else:
                return