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Diffstat (limited to 'examples/widgets/richtext/textobject/textobject.py')
-rwxr-xr-x | examples/widgets/richtext/textobject/textobject.py | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/examples/widgets/richtext/textobject/textobject.py b/examples/widgets/richtext/textobject/textobject.py new file mode 100755 index 000000000..3e7b75ddc --- /dev/null +++ b/examples/widgets/richtext/textobject/textobject.py @@ -0,0 +1,130 @@ +#!/usr/bin/env python + +############################################################################# +## +## 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 PySide 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): + + def intrinsicSize(self, doc, posInDocument, format): + renderer = QtSvg.QSvgRenderer(format.property(Window.SvgData).toByteArray()) + size = renderer.defaultSize() + + if size.height() > 25: + size *= 25.0 / size.height() + + return QtCore.QSizeF(size) + + def drawObject(self, painter, rect, doc, posInDocument, format): + renderer = QtSvg.QSvgRenderer(format.property(Window.SvgData).toByteArray()) + renderer.render(painter, rect) + + +class Window(QtWidgets.QWidget): + + SvgTextFormat = QtGui.QTextFormat.UserObject + 1 + + SvgData = 1 + + def __init__(self): + super(Window, self).__init__() + + self.setupGui() + self.setupTextObject() + + self.setWindowTitle(self.tr("Text Object Example")) + + def insertTextObject(self): + fileName = self.fileNameLineEdit.text() + file = QtCore.QFile(fileName) + + if not file.open(QtCore.QIODevice.ReadOnly): + QtWidgets.QMessageBox.warning(self, self.tr("Error Opening File"), + self.tr("Could not open '%1'").arg(fileName)) + + svgData = file.readAll() + + svgCharFormat = QtGui.QTextCharFormat() + svgCharFormat.setObjectType(Window.SvgTextFormat) + svgCharFormat.setProperty(Window.SvgData, svgData) + + cursor = self.textEdit.textCursor() + cursor.insertText(u"\uFFFD", svgCharFormat) + self.textEdit.setTextCursor(cursor) + + def setupTextObject(self): + svgInterface = SvgTextObject(self) + self.textEdit.document().documentLayout().registerHandler(Window.SvgTextFormat, svgInterface) + + def setupGui(self): + fileNameLabel = QtWidgets.QLabel(self.tr("Svg File Name:")) + self.fileNameLineEdit = QtWidgets.QLineEdit() + insertTextObjectButton = QtWidgets.QPushButton(self.tr("Insert Image")) + + self.fileNameLineEdit.setText('./files/heart.svg') + QtCore.QObject.connect(insertTextObjectButton, QtCore.SIGNAL('clicked()'), self.insertTextObject) + + bottomLayout = QtWidgets.QHBoxLayout() + bottomLayout.addWidget(fileNameLabel) + bottomLayout.addWidget(self.fileNameLineEdit) + bottomLayout.addWidget(insertTextObjectButton) + + self.textEdit = QtWidgets.QTextEdit() + + mainLayout = QtWidgets.QVBoxLayout() + mainLayout.addWidget(self.textEdit) + mainLayout.addLayout(bottomLayout) + + self.setLayout(mainLayout) + + +if __name__ == '__main__': + + import sys + + app = QtWidgets.QApplication(sys.argv) + window = Window() + window.show() + sys.exit(app.exec_()) |