Merge remote-tracking branch 'origin/5.15' into dev

Change-Id: Ib38f2f4be9f214df79454ff972ccd20fbfc6d1cd

1 files changed, 209 insertions, 0 deletions

diff --git a/sources/pyside2/doc/tutorials/expenses/main_snake_case.py b/sources/pyside2/doc/tutorials/expenses/main_snake_case.py
new file mode 100644
index 000000000..154396b41
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+++ b/sources/pyside2/doc/tutorials/expenses/main_snake_case.py
@@ -0,0 +1,209 @@
+#############################################################################
+##
+## Copyright (C) 2020 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the Qt for Python examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+import sys
+from PySide2.QtCore import Qt, Slot
+from PySide2.QtGui import QPainter
+from PySide2.QtWidgets import (QAction, QApplication, QHeaderView, QHBoxLayout, QLabel, QLineEdit,
+                               QMainWindow, QPushButton, QTableWidget, QTableWidgetItem,
+                               QVBoxLayout, QWidget)
+from PySide2.QtCharts import QtCharts
+
+from __feature__ import snake_case
+
+
+class Widget(QWidget):
+    def __init__(self):
+        QWidget.__init__(self)
+        self.items = 0
+
+        # Example data
+        self._data = {"Water": 24.5, "Electricity": 55.1, "Rent": 850.0,
+                      "Supermarket": 230.4, "Internet": 29.99, "Bars": 21.85,
+                      "Public transportation": 60.0, "Coffee": 22.45, "Restaurants": 120}
+
+        # Left
+        self.table = QTableWidget()
+        self.table.set_column_count(2)
+        self.table.set_horizontal_header_labels(["Description", "Price"])
+        self.table.horizontal_header().set_section_resize_mode(QHeaderView.Stretch)
+
+        # Chart
+        self.chart_view = QtCharts.QChartView()
+        self.chart_view.set_render_hint(QPainter.Antialiasing)
+
+        # Right
+        self.description = QLineEdit()
+        self.price = QLineEdit()
+        self.add = QPushButton("Add")
+        self.clear = QPushButton("Clear")
+        self.quit = QPushButton("Quit")
+        self.plot = QPushButton("Plot")
+
+        # Disabling 'Add' button
+        self.add.setEnabled(False)
+
+        self.right = QVBoxLayout()
+        self.right.set_margin(10)
+        self.right.add_widget(QLabel("Description"))
+        self.right.add_widget(self.description)
+        self.right.add_widget(QLabel("Price"))
+        self.right.add_widget(self.price)
+        self.right.add_widget(self.add)
+        self.right.add_widget(self.plot)
+        self.right.add_widget(self.chart_view)
+        self.right.add_widget(self.clear)
+        self.right.add_widget(self.quit)
+
+        # QWidget Layout
+        self.layout = QHBoxLayout()
+
+        #self.table_view.setSizePolicy(size)
+        self.layout.add_widget(self.table)
+        self.layout.add_layout(self.right)
+
+        # Set the layout to the QWidget
+        self.set_layout(self.layout)
+
+        # Signals and Slots
+        self.add.clicked.connect(self.add_element)
+        self.quit.clicked.connect(self.quit_application)
+        self.plot.clicked.connect(self.plot_data)
+        self.clear.clicked.connect(self.clear_table)
+        self.description.textChanged[str].connect(self.check_disable)
+        self.price.textChanged[str].connect(self.check_disable)
+
+        # Fill example data
+        self.fill_table()
+
+    @Slot()
+    def add_element(self):
+        des = self.description.text()
+        price = self.price.text()
+
+        self.table.insert_row(self.items)
+        description_item = QTableWidgetItem(des)
+        price_item = QTableWidgetItem("{:.2f}".format(float(price)))
+        price_item.set_text_alignment(Qt.AlignRight)
+
+        self.table.set_item(self.items, 0, description_item)
+        self.table.set_item(self.items, 1, price_item)
+
+        self.description.set_text("")
+        self.price.set_text("")
+
+        self.items += 1
+
+    @Slot()
+    def check_disable(self, s):
+        if not self.description.text() or not self.price.text():
+            self.add.set_enabled(False)
+        else:
+            self.add.set_enabled(True)
+
+    @Slot()
+    def plot_data(self):
+        # Get table information
+        series = QtCharts.QPieSeries()
+        for i in range(self.table.row_count()):
+            text = self.table.item(i, 0).text()
+            number = float(self.table.item(i, 1).text())
+            series.append(text, number)
+
+        chart = QtCharts.QChart()
+        chart.add_series(series)
+        chart.legend().set_alignment(Qt.AlignLeft)
+        self.chart_view.set_chart(chart)
+
+    @Slot()
+    def quit_application(self):
+        QApplication.quit()
+
+    def fill_table(self, data=None):
+        data = self._data if not data else data
+        for desc, price in data.items():
+            description_item = QTableWidgetItem(desc)
+            price_item = QTableWidgetItem("{:.2f}".format(price))
+            price_item.set_text_alignment(Qt.AlignRight)
+            self.table.insert_row(self.items)
+            self.table.set_item(self.items, 0, description_item)
+            self.table.set_item(self.items, 1, price_item)
+            self.items += 1
+
+    @Slot()
+    def clear_table(self):
+        self.table.set_row_count(0)
+        self.items = 0
+
+
+class MainWindow(QMainWindow):
+    def __init__(self, widget):
+        QMainWindow.__init__(self)
+        self.setWindowTitle("Tutorial")
+
+        # Menu
+        self.menu = self.menu_bar()
+        self.file_menu = self.menu.add_menu("File")
+
+        # Exit QAction
+        exit_action = QAction("Exit", self)
+        exit_action.set_shortcut("Ctrl+Q")
+        exit_action.triggered.connect(self.exit_app)
+
+        self.file_menu.add_action(exit_action)
+        self.set_central_widget(widget)
+
+    @Slot()
+    def exit_app(self, checked):
+        QApplication.quit()
+
+
+if __name__ == "__main__":
+    # Qt Application
+    app = QApplication(sys.argv)
+    # QWidget
+    widget = Widget()
+    # QMainWindow using QWidget as central widget
+    window = MainWindow(widget)
+    window.resize(800, 600)
+    window.show()
+
+    # Execute application
+    sys.exit(app.exec_())