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| |
| #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); |
| } |
| |