1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
#############################################################################
##
## 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):
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_())
|
