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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
"""PySide6 port of the Model Data example from Qt v5.x"""
import sys
from random import randrange
from PySide6.QtCore import QAbstractTableModel, QModelIndex, QRect, Qt
from PySide6.QtGui import QColor, QPainter
from PySide6.QtWidgets import (QApplication, QGridLayout, QHeaderView,
QTableView, QWidget)
from PySide6.QtCharts import QChart, QChartView, QLineSeries, QVXYModelMapper
class CustomTableModel(QAbstractTableModel):
def __init__(self):
super().__init__()
self.input_data = []
self.mapping = {}
self.column_count = 4
self.row_count = 15
for i in range(self.row_count):
data_vec = [0] * self.column_count
for k in range(len(data_vec)):
if k % 2 == 0:
data_vec[k] = i * 50 + randrange(30)
else:
data_vec[k] = randrange(100)
self.input_data.append(data_vec)
def rowCount(self, parent=QModelIndex()):
return len(self.input_data)
def columnCount(self, parent=QModelIndex()):
return self.column_count
def headerData(self, section, orientation, role):
if role != Qt.DisplayRole:
return None
if orientation == Qt.Horizontal:
if section % 2 == 0:
return "x"
else:
return "y"
else:
return str(section + 1)
def data(self, index, role=Qt.DisplayRole):
if role == Qt.DisplayRole:
return self.input_data[index.row()][index.column()]
elif role == Qt.EditRole:
return self.input_data[index.row()][index.column()]
elif role == Qt.BackgroundRole:
for color, rect in self.mapping.items():
if rect.contains(index.column(), index.row()):
return QColor(color)
# cell not mapped return white color
return QColor(Qt.white)
return None
def setData(self, index, value, role=Qt.EditRole):
if index.isValid() and role == Qt.EditRole:
self.input_data[index.row()][index.column()] = float(value)
self.dataChanged.emit(index, index)
return True
return False
def flags(self, index):
return Qt.ItemIsEnabled | Qt.ItemIsEditable | Qt.ItemIsSelectable
def add_mapping(self, color, area):
self.mapping[color] = area
def clear_mapping(self):
self.mapping = {}
class TableWidget(QWidget):
def __init__(self):
super().__init__()
self.model = CustomTableModel()
self.table_view = QTableView()
self.table_view.setModel(self.model)
self.table_view.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
self.table_view.verticalHeader().setSectionResizeMode(QHeaderView.Stretch)
self.chart = QChart()
self.chart.setAnimationOptions(QChart.AllAnimations)
self.series = QLineSeries()
self.series.setName("Line 1")
self.mapper = QVXYModelMapper(self)
self.mapper.setXColumn(0)
self.mapper.setYColumn(1)
self.mapper.setSeries(self.series)
self.mapper.setModel(self.model)
self.chart.addSeries(self.series)
# get the color of the series and use it for showing the mapped area
self.model.add_mapping(self.series.pen().color().name(),
QRect(0, 0, 2, self.model.rowCount()))
# series 2
self.series = QLineSeries()
self.series.setName("Line 2")
self.mapper = QVXYModelMapper(self)
self.mapper.setXColumn(2)
self.mapper.setYColumn(3)
self.mapper.setSeries(self.series)
self.mapper.setModel(self.model)
self.chart.addSeries(self.series)
# get the color of the series and use it for showing the mapped area
self.model.add_mapping(self.series.pen().color().name(),
QRect(2, 0, 2, self.model.rowCount()))
self.chart.createDefaultAxes()
self.chart_view = QChartView(self.chart)
self.chart_view.setRenderHint(QPainter.Antialiasing)
self.chart_view.setMinimumSize(640, 480)
# create main layout
self.main_layout = QGridLayout()
self.main_layout.addWidget(self.table_view, 1, 0)
self.main_layout.addWidget(self.chart_view, 1, 1)
self.main_layout.setColumnStretch(1, 1)
self.main_layout.setColumnStretch(0, 0)
self.setLayout(self.main_layout)
if __name__ == "__main__":
app = QApplication(sys.argv)
w = TableWidget()
w.show()
sys.exit(app.exec())
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