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# * Copyright (c) 2025 Stefan Tröger <stefantroeger@gmx.net> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program 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 Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
__title__ = "FreeCAD table view widget to visualize vtkTable"
__author__ = "Stefan Tröger"
__url__ = "https://www.freecad.org"
## @package vtk_table_view
# \ingroup FEM
# \brief A Qt widget to show a vtkTable
from PySide import QtGui
from PySide import QtCore
import FreeCAD
import FreeCADGui
from vtkmodules.vtkIOCore import vtkDelimitedTextWriter
translate = FreeCAD.Qt.translate
class VtkTableModel(QtCore.QAbstractTableModel):
# Simple table model. Only supports single component columns
# One can supply a header_names dict to replace the table column names
# in the header. It is a dict "column_idx (int)" to "new name"" or
# "orig_name (str)" to "new name"
def __init__(self, header_names=None):
super().__init__()
self._table = None
if header_names:
self._header = header_names
else:
self._header = {}
def setTable(self, table, header_names=None):
self.beginResetModel()
self._table = table
if header_names:
self._header = header_names
self.endResetModel()
def rowCount(self, index):
if not self._table:
return 0
return self._table.GetNumberOfRows()
def columnCount(self, index):
if not self._table:
return 0
return self._table.GetNumberOfColumns()
def data(self, index, role):
if not self._table:
return None
if role == QtCore.Qt.DisplayRole:
col = self._table.GetColumn(index.column())
return col.GetTuple(index.row())[0]
return None
def headerData(self, section, orientation, role):
if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
if section in self._header:
return self._header[section]
name = self._table.GetColumnName(section)
if name in self._header:
return self._header[name]
return name
if orientation == QtCore.Qt.Vertical and role == QtCore.Qt.DisplayRole:
return section
return None
def getTable(self):
return self._table
class VtkTableSummaryModel(QtCore.QAbstractTableModel):
# Simple model showing a summary of the table.
# Only supports single component columns
def __init__(self):
super().__init__()
self._table = None
def setTable(self, table):
self.beginResetModel()
self._table = table
self.endResetModel()
def rowCount(self, index):
if not self._table:
return 0
return self._table.GetNumberOfColumns()
def columnCount(self, index):
return 2 # min, max
def data(self, index, role):
if not self._table:
return None
if role == QtCore.Qt.DisplayRole:
col = self._table.GetColumn(index.row())
range = col.GetRange()
return range[index.column()]
return None
def headerData(self, section, orientation, role):
if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
return ["Min", "Max"][section]
if orientation == QtCore.Qt.Vertical and role == QtCore.Qt.DisplayRole:
return self._table.GetColumnName(section)
return None
def getTable(self):
return self._table
class VtkTableView(QtGui.QWidget):
def __init__(self, model):
super().__init__()
self.model = model
layout = QtGui.QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
# start with the toolbar
self.toolbar = QtGui.QToolBar()
csv_action = QtGui.QAction(self)
csv_action.triggered.connect(self.exportCsv)
csv_action.setIcon(FreeCADGui.getIcon("Std_Export"))
csv_action.setToolTip(translate("FEM", "Export to CSV"))
self.toolbar.addAction(csv_action)
copy_action = QtGui.QAction(self)
copy_action.triggered.connect(self.copyToClipboard)
copy_action.setIcon(FreeCADGui.getIcon("edit-copy"))
shortcut = QtGui.QKeySequence(QtGui.QKeySequence.Copy)
copy_action.setToolTip(
translate("FEM", "Copy selection to clipboard ({})".format(shortcut.toString()))
)
copy_action.setShortcut(shortcut)
self.toolbar.addAction(copy_action)
layout.addWidget(self.toolbar)
# now the table view
self.table_view = QtGui.QTableView()
self.table_view.setModel(model)
self.model.modelReset.connect(self.modelReset)
# fast initial resize and manual resizing still allowed!
header = self.table_view.horizontalHeader()
header.setResizeContentsPrecision(10)
self.table_view.resizeColumnsToContents()
layout.addWidget(self.table_view)
self.setLayout(layout)
@QtCore.Slot()
def modelReset(self):
# The model is reset, make sure the header visibility is working
# This is needed in case new data was added
self.table_view.resizeColumnsToContents()
@QtCore.Slot(bool)
def exportCsv(self, state):
file_path, filter = QtGui.QFileDialog.getSaveFileName(
None, translate("FEM", "Save as csv file"), "", "CSV (*.csv)"
)
if not file_path:
FreeCAD.Console.PrintMessage(
translate("FEM", "CSV file export aborted: no filename selected")
)
return
writer = vtkDelimitedTextWriter()
writer.SetFileName(file_path)
writer.SetInputData(self.model.getTable())
writer.Write()
@QtCore.Slot()
def copyToClipboard(self):
sel_model = self.table_view.selectionModel()
selection = sel_model.selectedIndexes()
if len(selection) < 1:
return
copy_table = ""
previous = selection.pop(0)
for current in selection:
data = self.model.data(previous, QtCore.Qt.DisplayRole)
copy_table += str(data)
if current.row() != previous.row():
copy_table += "\n"
else:
copy_table += "\t"
previous = current
copy_table += str(self.model.data(selection[-1], QtCore.Qt.DisplayRole))
copy_table += "\n"
clipboard = QtGui.QApplication.instance().clipboard()
clipboard.setText(copy_table)
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