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
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include <QtSvg>
#include "window.h"
#include "svgtextobject.h"
Window::Window()
{
setupGui();
setupTextObject();
setWindowTitle("Text Object Example");
}
//![1]
void Window::insertTextObject()
{
QString fileName = fileNameLineEdit->text();
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly)) {
QMessageBox::warning(this, tr("Error Opening File"),
tr("Could not open '%1'").arg(fileName));
}
QByteArray svgData = file.readAll();
//![1]
//![2]
QTextCharFormat svgCharFormat;
svgCharFormat.setObjectType(SvgTextFormat);
QSvgRenderer renderer(svgData);
QImage svgBufferImage(renderer.defaultSize(), QImage::Format_ARGB32);
QPainter painter(&svgBufferImage);
renderer.render(&painter, svgBufferImage.rect());
svgCharFormat.setProperty(SvgData, svgBufferImage);
QTextCursor cursor = textEdit->textCursor();
cursor.insertText(QString(QChar::ObjectReplacementCharacter), svgCharFormat);
textEdit->setTextCursor(cursor);
}
//![2]
//![3]
void Window::setupTextObject()
{
QObject *svgInterface = new SvgTextObject;
textEdit->document()->documentLayout()->registerHandler(SvgTextFormat, svgInterface);
}
//![3]
void Window::setupGui()
{
fileNameLabel = new QLabel(tr("Svg File Name:"));
fileNameLineEdit = new QLineEdit;
insertTextObjectButton = new QPushButton(tr("Insert Image"));
fileNameLineEdit->setText("./files/heart.svg");
connect(insertTextObjectButton, SIGNAL(clicked()),
this, SLOT(insertTextObject()));
QHBoxLayout *bottomLayout = new QHBoxLayout;
bottomLayout->addWidget(fileNameLabel);
bottomLayout->addWidget(fileNameLineEdit);
bottomLayout->addWidget(insertTextObjectButton);
textEdit = new QTextEdit;
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(textEdit);
mainLayout->addLayout(bottomLayout);
setLayout(mainLayout);
}
|
