Source code for taurus.qt.qtgui.util.tauruswidgettree

#!/usr/bin/env python

#############################################################################
##
# This file is part of Taurus
##
# http://taurus-scada.org
##
# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
# Taurus is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
##
# Taurus is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
##
# You should have received a copy of the GNU Lesser General Public License
# along with Taurus.  If not, see <http://www.gnu.org/licenses/>.
##
#############################################################################

"""
"""

__all__ = ["QObjectRepresentation", "get_qobject_tree", "get_qobject_tree_str",
           "TreeQObjectModel", "TreeQObjectWidget"]

__docformat__ = 'restructuredtext'

import weakref

from taurus.external.qt import Qt

from taurus.core.util.enumeration import Enumeration

QObjectRepresentation = Enumeration('QObjectRepresentation',
                                    ('ClassName', 'ObjectName', 'FullName'))


def _build_qobjects_as_dict(qobject, container):

    container[qobject] = childs = {}
    for child in qobject.children():
        if isinstance(child, Qt.QWidget):
            _build_qobjects_as_dict(child, childs)


[docs]def get_qobject_tree_as_dict(qobject=None): if qobject is None: app = Qt.QApplication.instance() qobjects = app.topLevelWidgets() else: qobjects = [qobject] tree = {} for qobject in qobjects: _build_qobjects_as_dict(qobject, tree) return tree
def _build_qobjects_as_list(qobject, container): children = qobject.children() node = qobject, [] container.append(node) for child in children: if isinstance(child, Qt.QWidget): _build_qobjects_as_list(child, node[1])
[docs]def get_qobject_tree_as_list(qobject=None): if qobject is None: app = Qt.QApplication.instance() qobjects = app.topLevelWidgets() else: qobjects = [qobject] tree = [] for qobject in qobjects: _build_qobjects_as_list(qobject, tree) return tree
get_qobject_tree = get_qobject_tree_as_list def _get_qobject_str(qobject, representation): if representation == QObjectRepresentation.ClassName: return qobject.__class__.__name__ elif representation == QObjectRepresentation.ObjectName: return str(qobject.objectName()) elif representation == QObjectRepresentation.FullName: return '{0}("{1}")'.format(qobject.__class__.__name__, str(qobject.objectName())) return str(qobject) def _build_qobject_str(node, str_tree, representation=QObjectRepresentation.ClassName): qobject, children = node str_node = _get_qobject_str(qobject, representation) str_children = [] str_tree.append((str_node, str_children)) for child in children: _build_qobject_str(child, str_children, representation=representation)
[docs]def get_qobject_tree_str(qobject=None, representation=QObjectRepresentation.ClassName): tree, str_tree = get_qobject_tree(qobject=qobject), [] for e in tree: _build_qobject_str(e, str_tree, representation=representation) return str_tree
from taurus.qt.qtgui.tree.qtree import QBaseTreeWidget from taurus.qt.qtcore.model import TaurusBaseModel, TaurusBaseTreeItem QR = QObjectRepresentation
[docs]class TreeQObjecttItem(TaurusBaseTreeItem): def __init__(self, model, data, parent=None): TaurusBaseTreeItem.__init__(self, model, data, parent=parent) if data is not None: self.qobject = weakref.ref(data) dat = _get_qobject_str(data, QR.ClassName), \ _get_qobject_str(data, QR.ObjectName) self.setData(0, dat)
[docs]class TreeQObjectModel(TaurusBaseModel): ColumnNames = "Class", "Object name" ColumnRoles = (QR.ClassName,), QR.ObjectName def __init__(self, parent=None, data=None): TaurusBaseModel.__init__(self, parent=parent, data=data) # def createNewRootItem(self): # return TreeQObjecttItem(self, self.ColumnNames)
[docs] def role(self, column, depth=0): if column == 0: return self.ColumnRoles[column][0] return self.ColumnRoles[column]
[docs] def roleIcon(self, taurus_role): return Qt.QIcon()
[docs] def roleSize(self, taurus_role): return Qt.QSize(300, 70)
[docs] def roleToolTip(self, role): return "widget information"
@staticmethod def _build_qobject_item(model, parent, node): qobject, children = node item = TreeQObjecttItem(model, qobject, parent) parent.appendChild(item) for child in children: TreeQObjectModel._build_qobject_item(model, item, child)
[docs] def setupModelData(self, data): if data is None: return rootItem = self._rootItem for node in data: TreeQObjectModel._build_qobject_item(self, rootItem, node)
[docs]class TreeQObjectWidget(QBaseTreeWidget): KnownPerspectives = { "Default": { "label": "Default perspecive", "tooltip": "QObject tree view", "icon": "", "model": [TreeQObjectModel], }, } DftPerspective = "Default" def __init__(self, parent=None, designMode=False, with_navigation_bar=True, with_filter_widget=True, perspective=None, proxy=None, qobject_root=None): QBaseTreeWidget.__init__(self, parent, designMode=designMode, with_navigation_bar=with_navigation_bar, with_filter_widget=with_filter_widget, perspective=perspective, proxy=proxy) qmodel = self.getQModel() qmodel.setDataSource(get_qobject_tree(qobject=qobject_root))
[docs]def build_gui(): mw = Qt.QMainWindow() mw.setObjectName("main window") w = Qt.QWidget() w.setObjectName("central widget") mw.setCentralWidget(w) l = Qt.QVBoxLayout() w.setLayout(l) l1 = Qt.QLabel("H1") l1.setObjectName("label 1") l.addWidget(l1) l2 = Qt.QLabel("H2") l2.setObjectName("label 2") l.addWidget(l2) mw.show() return mw
[docs]def main(): from taurus.qt.qtgui.application import TaurusApplication app = TaurusApplication(cmd_line_parser=None) w = build_gui() tree = TreeQObjectWidget(qobject_root=w) tree.show() #import pprint # pprint.pprint(get_qobject_tree_str()) w.dumpObjectTree() app.exec_()
if __name__ == "__main__": main()