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Diffstat (limited to 'examples/widgets/richtext/textobject/textobject.py')
| -rw-r--r-- | examples/widgets/richtext/textobject/textobject.py | 165 |
1 files changed, 70 insertions, 95 deletions
diff --git a/examples/widgets/richtext/textobject/textobject.py b/examples/widgets/richtext/textobject/textobject.py index b828ea3d0..9ab7bf8ae 100644 --- a/examples/widgets/richtext/textobject/textobject.py +++ b/examples/widgets/richtext/textobject/textobject.py @@ -1,129 +1,104 @@ +# Copyright (C) 2013 Riverbank Computing Limited. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause -############################################################################# -## -## Copyright (C) 2013 Riverbank Computing Limited. -## Copyright (C) 2016 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." -## -## $QT_END_LICENSE$ -## -############################################################################# - -"""PySide2 port of the widgets/richtext/textobject example from Qt v5.x""" - -from PySide2 import QtCore, QtGui, QtWidgets, QtSvg - - -class SvgTextObject(QtCore.QObject, QtGui.QTextObjectInterface): +"""PySide6 port of the widgets/richtext/textobject example from Qt v5.x""" + +import os +from pathlib import Path +import sys + +from PySide6.QtCore import QFile, QIODevice, QSizeF, Slot +from PySide6.QtGui import (QTextCharFormat, QTextFormat, QPyTextObject) +from PySide6.QtWidgets import (QApplication, QHBoxLayout, QLabel, QLineEdit, + QMessageBox, QPushButton, QTextEdit, + QVBoxLayout, QWidget) +from PySide6.QtSvg import QSvgRenderer + + +SVG_TEXT_FORMAT = QTextFormat.UserObject + 1 + + +SVG_DATA = 1 + + +class SvgTextObject(QPyTextObject): + def __init__(self, parent=None): + super().__init__(parent) def intrinsicSize(self, doc, posInDocument, format): - renderer = QtSvg.QSvgRenderer(format.property(Window.SvgData).toByteArray()) + renderer = QSvgRenderer(format.property(SVG_DATA)) size = renderer.defaultSize() if size.height() > 25: size *= 25.0 / size.height() - return QtCore.QSizeF(size) + return QSizeF(size) def drawObject(self, painter, rect, doc, posInDocument, format): - renderer = QtSvg.QSvgRenderer(format.property(Window.SvgData).toByteArray()) + renderer = QSvgRenderer(format.property(SVG_DATA)) renderer.render(painter, rect) -class Window(QtWidgets.QWidget): - - SvgTextFormat = QtGui.QTextFormat.UserObject + 1 - - SvgData = 1 +class Window(QWidget): def __init__(self): - super(Window, self).__init__() + super().__init__() - self.setupGui() - self.setupTextObject() + self.setup_gui() + self.setup_text_object() self.setWindowTitle(self.tr("Text Object Example")) - def insertTextObject(self): - fileName = self.fileNameLineEdit.text() - file = QtCore.QFile(fileName) + @Slot() + def insert_text_object(self): + file_name = self._file_name_line_edit.text() + file = QFile(file_name) - if not file.open(QtCore.QIODevice.ReadOnly): - QtWidgets.QMessageBox.warning(self, self.tr("Error Opening File"), - self.tr("Could not open '%1'").arg(fileName)) + if not file.open(QIODevice.ReadOnly): + reason = file.errorString() + message = f"Could not open '{file_name}': {reason}" + QMessageBox.warning(self, "Error Opening File", message) - svgData = file.readAll() + svg_data = file.readAll() - svgCharFormat = QtGui.QTextCharFormat() - svgCharFormat.setObjectType(Window.SvgTextFormat) - svgCharFormat.setProperty(Window.SvgData, svgData) + svg_char_format = QTextCharFormat() + svg_char_format.setObjectType(SVG_TEXT_FORMAT) + svg_char_format.setProperty(SVG_DATA, svg_data) - cursor = self.textEdit.textCursor() - cursor.insertText(u"\uFFFD", svgCharFormat) - self.textEdit.setTextCursor(cursor) + cursor = self._text_edit.textCursor() + cursor.insertText(chr(0xfffc), svg_char_format) + self._text_edit.setTextCursor(cursor) - def setupTextObject(self): - svgInterface = SvgTextObject(self) - self.textEdit.document().documentLayout().registerHandler(Window.SvgTextFormat, svgInterface) + def setup_text_object(self): + svg_interface = SvgTextObject(self) + doc_layout = self._text_edit.document().documentLayout() + doc_layout.registerHandler(SVG_TEXT_FORMAT, svg_interface) - def setupGui(self): - fileNameLabel = QtWidgets.QLabel(self.tr("Svg File Name:")) - self.fileNameLineEdit = QtWidgets.QLineEdit() - insertTextObjectButton = QtWidgets.QPushButton(self.tr("Insert Image")) + def setup_gui(self): + file_name_label = QLabel(self.tr("Svg File Name:")) + self._file_name_line_edit = QLineEdit() + self._file_name_line_edit.setClearButtonEnabled(True) + insert_text_object_button = QPushButton(self.tr("Insert Image")) - self.fileNameLineEdit.setText('./files/heart.svg') - QtCore.QObject.connect(insertTextObjectButton, QtCore.SIGNAL('clicked()'), self.insertTextObject) + file = os.fspath(Path(__file__).resolve().parent / 'files' / 'heart.svg') + self._file_name_line_edit.setText(file) + insert_text_object_button.clicked.connect(self.insert_text_object) - bottomLayout = QtWidgets.QHBoxLayout() - bottomLayout.addWidget(fileNameLabel) - bottomLayout.addWidget(self.fileNameLineEdit) - bottomLayout.addWidget(insertTextObjectButton) + bottom_layout = QHBoxLayout() + bottom_layout.addWidget(file_name_label) + bottom_layout.addWidget(self._file_name_line_edit) + bottom_layout.addWidget(insert_text_object_button) - self.textEdit = QtWidgets.QTextEdit() + self._text_edit = QTextEdit() - mainLayout = QtWidgets.QVBoxLayout() - mainLayout.addWidget(self.textEdit) - mainLayout.addLayout(bottomLayout) - - self.setLayout(mainLayout) + main_layout = QVBoxLayout(self) + main_layout.addWidget(self._text_edit) + main_layout.addLayout(bottom_layout) if __name__ == '__main__': - - import sys - - app = QtWidgets.QApplication(sys.argv) + app = QApplication(sys.argv) window = Window() window.show() - sys.exit(app.exec_()) + sys.exit(app.exec()) |