|  | Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# window.cpp Example File
richtext/textobject/window.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
     ** Contact: Qt Software Information (qt-info@nokia.com)
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial Usage
     ** Licensees holding valid Qt Commercial licenses may use this file in
     ** accordance with the Qt Commercial License Agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and Nokia.
     **
     ** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
     ** package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
     ** met: http://www.gnu.org/copyleft/gpl.html.
     **
     ** If you are unsure which license is appropriate for your use, please
     ** contact the sales department at qt-sales@nokia.com.
     ** $QT_END_LICENSE$
     **
     ****************************************************************************/

     #include <QtGui>
     #include <QtSvg>

     #include "window.h"
     #include "svgtextobject.h"

     Window::Window()
     {
         setupGui();
         setupTextObject();

         setWindowTitle("Text Object Example");
     }

     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();

         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);
     }

     void Window::setupTextObject()
     {
         QObject *svgInterface = new SvgTextObject;
         textEdit->document()->documentLayout()->registerHandler(SvgTextFormat, svgInterface);
     }

     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);
     }