diff options
Diffstat (limited to 'examples/charts/legend/legend.py')
| -rw-r--r-- | examples/charts/legend/legend.py | 60 |
1 files changed, 15 insertions, 45 deletions
diff --git a/examples/charts/legend/legend.py b/examples/charts/legend/legend.py index 2996904c8..5417a940f 100644 --- a/examples/charts/legend/legend.py +++ b/examples/charts/legend/legend.py @@ -1,50 +1,14 @@ -############################################################################# -## -## Copyright (C) 2021 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." -## -## $QT_END_LICENSE$ -## -############################################################################# +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause """PySide6 port of the Legend example from Qt v5.x""" import sys -from PySide6.QtCore import Qt, QRectF +from PySide6.QtCore import Qt, QRectF, Slot from PySide6.QtGui import QBrush, QColor, QPainter, QPen from PySide6.QtWidgets import (QApplication, QDoubleSpinBox, - QFormLayout, QGridLayout, QGroupBox, QPushButton, QWidget) + QFormLayout, QGridLayout, QGroupBox, + QPushButton, QWidget) from PySide6.QtCharts import QBarSeries, QBarSet, QChart, QChartView @@ -160,6 +124,7 @@ class MainWidget(QWidget): def hide_legend_spinbox(self): self.legend_settings.setVisible(False) + @Slot() def toggle_attached(self): legend = self.chart.legend() if legend.isAttachedToChart(): @@ -176,6 +141,7 @@ class MainWidget(QWidget): self.hide_legend_spinbox() self.update() + @Slot() def add_barset(self): series_count = self.series.count() bar_set = QBarSet(f"set {series_count}") @@ -183,12 +149,14 @@ class MainWidget(QWidget): bar_set.append([1 + delta, 2 + delta, 3 + delta, 4 + delta]) self.series.append(bar_set) + @Slot() def remove_barset(self): sets = self.series.barSets() len_sets = len(sets) if len_sets > 0: self.series.remove(sets[len_sets - 1]) + @Slot() def set_legend_alignment(self): button = self.sender() legend = self.chart.legend() @@ -211,18 +179,21 @@ class MainWidget(QWidget): button.setText("Align (Top)") legend.setAlignment(Qt.AlignTop) + @Slot() def toggle_bold(self): legend = self.chart.legend() font = legend.font() font.setBold(not font.bold()) legend.setFont(font) + @Slot() def toggle_italic(self): legend = self.chart.legend() font = legend.font() font.setItalic(not font.italic()) legend.setFont(font) + @Slot() def font_size_changed(self): legend = self.chart.legend() font = legend.font() @@ -232,13 +203,12 @@ class MainWidget(QWidget): font.setPointSizeF(font_size) legend.setFont(font) + @Slot() def update_legend_layout(self): legend = self.chart.legend() - rect = QRectF(self.legend_posx.value(), - self.legend_posy.value(), - self.legend_width.value(), - self.legend_height.value()) + rect = QRectF(self.legend_posx.value(), self.legend_posy.value(), + self.legend_width.value(), self.legend_height.value()) legend.setGeometry(rect) legend.update() |