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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the 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 Nokia Corporation and its Subsidiary(-ies) 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtWidgets>
#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;
    svgInterface->setParent(this);
    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);
}