diff options
Diffstat (limited to 'examples/widgets')
| -rw-r--r-- | examples/widgets/richtext/textobject/textobject.py | 83 |
1 files changed, 48 insertions, 35 deletions
diff --git a/examples/widgets/richtext/textobject/textobject.py b/examples/widgets/richtext/textobject/textobject.py index d941a3cbe..3877ed4e8 100644 --- a/examples/widgets/richtext/textobject/textobject.py +++ b/examples/widgets/richtext/textobject/textobject.py @@ -2,7 +2,7 @@ ############################################################################# ## ## Copyright (C) 2013 Riverbank Computing Limited. -## Copyright (C) 2016 The Qt Company Ltd. +## 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. @@ -42,33 +42,47 @@ """PySide6 port of the widgets/richtext/textobject example from Qt v5.x""" -from PySide6 import QtCore, QtGui, QtWidgets, QtSvg +import os +from pathlib import Path +import sys +from PySide6.QtCore import QFile, QIODevice, QObject, QSizeF, Qt +from PySide6.QtGui import (QTextCharFormat, QTextFormat, QTextObjectInterface, + QPyTextObject) +from PySide6.QtWidgets import (QApplication, QHBoxLayout, QLabel, QLineEdit, + QMessageBox, QPushButton, QTextEdit, + QVBoxLayout, QWidget) +from PySide6.QtSvg import QSvgRenderer -class SvgTextObject(QtCore.QObject, QtGui.QTextObjectInterface): + +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.svg_data).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.svg_data).toByteArray()) + renderer = QSvgRenderer(format.property(SVG_DATA)) renderer.render(painter, rect) -class Window(QtWidgets.QWidget): - - svg_text_format = QtGui.QTextFormat.UserObject + 1 - - svg_data = 1 +class Window(QWidget): def __init__(self): - super(Window, self).__init__() + super().__init__() self.setup_gui() self.setup_text_object() @@ -77,53 +91,52 @@ class Window(QtWidgets.QWidget): def insert_text_object(self): file_name = self._file_name_line_edit.text() - file = QtCore.QFile(file_name) + 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(file_name)) + if not file.open(QIODevice.ReadOnly): + reason = file.errorString() + message = f"Could not open '{file_name}': {reason}" + QMessageBox.warning(self, "Error Opening File", message) svg_data = file.readAll() - svg_char_format = QtGui.QTextCharFormat() - svg_char_format.setObjectType(Window.svg_text_format) - svg_char_format.setProperty(Window.svg_data, svg_data) + svg_char_format = QTextCharFormat() + svg_char_format.setObjectType(SVG_TEXT_FORMAT) + svg_char_format.setProperty(SVG_DATA, svg_data) cursor = self._text_edit.textCursor() - cursor.insertText(u"\uFFFD", svg_char_format) + cursor.insertText(chr(0xfffc), svg_char_format) self._text_edit.setTextCursor(cursor) def setup_text_object(self): svg_interface = SvgTextObject(self) - self._text_edit.document().documentLayout().registerHandler(Window.svg_text_format, svg_interface) + doc_layout = self._text_edit.document().documentLayout() + doc_layout.registerHandler(SVG_TEXT_FORMAT, svg_interface) def setup_gui(self): - file_name_label = QtWidgets.QLabel(self.tr("Svg File Name:")) - self._file_name_line_edit = QtWidgets.QLineEdit() - insert_text_object_button = QtWidgets.QPushButton(self.tr("Insert Image")) + 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._file_name_line_edit.setText('./files/heart.svg') - QtCore.QObject.connect(insert_text_object_button, QtCore.SIGNAL('clicked()'), self.insert_text_object) + 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) - bottom_layout = QtWidgets.QHBoxLayout() + 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._text_edit = QtWidgets.QTextEdit() + self._text_edit = QTextEdit() - main_layout = QtWidgets.QVBoxLayout() + main_layout = QVBoxLayout(self) main_layout.addWidget(self._text_edit) main_layout.addLayout(bottom_layout) - self.setLayout(main_layout) - if __name__ == '__main__': - - import sys - - app = QtWidgets.QApplication(sys.argv) + app = QApplication(sys.argv) window = Window() window.show() sys.exit(app.exec_()) |