1/****************************************************************************
2**
3** Copyright (C) 2017 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include <QtWidgets>
52#include <QtSvg>
53
54#include "window.h"
55#include "svgtextobject.h"
56
57Window::Window()
58{
59 setupGui();
60 setupTextObject();
61
62 setWindowTitle("Text Object Example");
63}
64
65//![1]
66void Window::insertTextObject()
67{
68 QString fileName = fileNameLineEdit->text();
69 QFile file(fileName);
70 if (!file.open(flags: QIODevice::ReadOnly)) {
71 QMessageBox::warning(parent: this, title: tr(s: "Error Opening File"),
72 text: tr(s: "Could not open '%1'").arg(a: fileName));
73 }
74
75 QByteArray svgData = file.readAll();
76//![1]
77
78//![2]
79 QTextCharFormat svgCharFormat;
80 svgCharFormat.setObjectType(SvgTextFormat);
81 QSvgRenderer renderer(svgData);
82
83 QImage svgBufferImage(renderer.defaultSize(), QImage::Format_ARGB32);
84 QPainter painter(&svgBufferImage);
85 renderer.render(p: &painter, bounds: svgBufferImage.rect());
86
87 svgCharFormat.setProperty(propertyId: SvgData, value: svgBufferImage);
88
89 QTextCursor cursor = textEdit->textCursor();
90 cursor.insertText(text: QString(QChar::ObjectReplacementCharacter), format: svgCharFormat);
91 textEdit->setTextCursor(cursor);
92}
93//![2]
94
95//![3]
96void Window::setupTextObject()
97{
98 QObject *svgInterface = new SvgTextObject;
99 svgInterface->setParent(this);
100 textEdit->document()->documentLayout()->registerHandler(objectType: SvgTextFormat, component: svgInterface);
101}
102//![3]
103
104void Window::setupGui()
105{
106 fileNameLabel = new QLabel(tr(s: "Svg File Name:"));
107 fileNameLineEdit = new QLineEdit;
108 insertTextObjectButton = new QPushButton(tr(s: "Insert Image"));
109
110 fileNameLineEdit->setText(":/files/heart.svg");
111 connect(sender: insertTextObjectButton, SIGNAL(clicked()),
112 receiver: this, SLOT(insertTextObject()));
113
114 QHBoxLayout *bottomLayout = new QHBoxLayout;
115 bottomLayout->addWidget(fileNameLabel);
116 bottomLayout->addWidget(fileNameLineEdit);
117 bottomLayout->addWidget(insertTextObjectButton);
118
119 textEdit = new QTextEdit;
120
121 QVBoxLayout *mainLayout = new QVBoxLayout;
122 mainLayout->addWidget(textEdit);
123 mainLayout->addLayout(layout: bottomLayout);
124
125 setLayout(mainLayout);
126}
127
128

source code of qtsvg/examples/svg/richtext/textobject/window.cpp