81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtWidgets>
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#include <QtSvg>
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#include "window.h"
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#include "svgtextobject.h"
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Window::Window()
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{
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setupGui();
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setupTextObject();
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setWindowTitle("Text Object Example");
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}
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//![1]
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void Window::insertTextObject()
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{
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QString fileName = fileNameLineEdit->text();
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QFile file(fileName);
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if (!file.open(QIODevice::ReadOnly)) {
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QMessageBox::warning(this, tr("Error Opening File"),
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tr("Could not open '%1'").arg(fileName));
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}
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QByteArray svgData = file.readAll();
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//![1]
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//![2]
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QTextCharFormat svgCharFormat;
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svgCharFormat.setObjectType(SvgTextFormat);
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QSvgRenderer renderer(svgData);
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QImage svgBufferImage(renderer.defaultSize(), QImage::Format_ARGB32);
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QPainter painter(&svgBufferImage);
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renderer.render(&painter, svgBufferImage.rect());
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svgCharFormat.setProperty(SvgData, svgBufferImage);
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QTextCursor cursor = textEdit->textCursor();
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cursor.insertText(QString(QChar::ObjectReplacementCharacter), svgCharFormat);
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textEdit->setTextCursor(cursor);
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}
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//![2]
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//![3]
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void Window::setupTextObject()
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{
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QObject *svgInterface = new SvgTextObject;
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svgInterface->setParent(this);
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textEdit->document()->documentLayout()->registerHandler(SvgTextFormat, svgInterface);
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}
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//![3]
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void Window::setupGui()
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{
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fileNameLabel = new QLabel(tr("Svg File Name:"));
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fileNameLineEdit = new QLineEdit;
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insertTextObjectButton = new QPushButton(tr("Insert Image"));
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fileNameLineEdit->setText(":/files/heart.svg");
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connect(insertTextObjectButton, &QPushButton::clicked,
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this, &Window::insertTextObject);
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QHBoxLayout *bottomLayout = new QHBoxLayout;
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bottomLayout->addWidget(fileNameLabel);
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bottomLayout->addWidget(fileNameLineEdit);
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bottomLayout->addWidget(insertTextObjectButton);
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textEdit = new QTextEdit;
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QVBoxLayout *mainLayout = new QVBoxLayout;
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mainLayout->addWidget(textEdit);
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mainLayout->addLayout(bottomLayout);
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setLayout(mainLayout);
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}
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