diff options
author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2019-05-27 09:16:56 +0200 |
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committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2019-05-27 09:17:14 +0200 |
commit | 761b71bd20524bc1e495508a52c38a0bc6679a06 (patch) | |
tree | df2748fb11234c9b0dfb82828ce8d76459d185db /src/gui/text | |
parent | 800941df899a4418d4ac6cebbcc31a40120167bc (diff) | |
parent | 14aa1f7d6ffea29647557f98e654355782f55e66 (diff) |
Merge remote-tracking branch 'origin/5.12' into 5.13
Change-Id: Iaf6bd52972b562b9c91d9e93a988d26b0eb9d3b4
Diffstat (limited to 'src/gui/text')
-rw-r--r-- | src/gui/text/qtextodfwriter.cpp | 88 |
1 files changed, 69 insertions, 19 deletions
diff --git a/src/gui/text/qtextodfwriter.cpp b/src/gui/text/qtextodfwriter.cpp index a62e7e425a..9721243454 100644 --- a/src/gui/text/qtextodfwriter.cpp +++ b/src/gui/text/qtextodfwriter.cpp @@ -43,6 +43,7 @@ #include "qtextodfwriter_p.h" +#include <QImageReader> #include <QImageWriter> #include <QTextListFormat> #include <QTextList> @@ -410,6 +411,29 @@ void QTextOdfWriter::writeBlock(QXmlStreamWriter &writer, const QTextBlock &bloc writer.writeEndElement(); // list-item } +static bool probeImageData(QIODevice *device, QImage *image, QString *mimeType, qreal *width, qreal *height) +{ + QImageReader reader(device); + const QByteArray format = reader.format().toLower(); + if (format == "png") { + *mimeType = QStringLiteral("image/png"); + } else if (format == "jpg") { + *mimeType = QStringLiteral("image/jpg"); + } else if (format == "svg") { + *mimeType = QStringLiteral("image/svg+xml"); + } else { + *image = reader.read(); + return false; + } + + const QSize size = reader.size(); + + *width = size.width(); + *height = size.height(); + + return true; +} + void QTextOdfWriter::writeInlineCharacter(QXmlStreamWriter &writer, const QTextFragment &fragment) const { writer.writeStartElement(drawNS, QString::fromLatin1("frame")); @@ -420,47 +444,73 @@ void QTextOdfWriter::writeInlineCharacter(QXmlStreamWriter &writer, const QTextF QTextImageFormat imageFormat = fragment.charFormat().toImageFormat(); writer.writeAttribute(drawNS, QString::fromLatin1("name"), imageFormat.name()); + QByteArray data; + QString mimeType; + qreal width = 0; + qreal height = 0; + QImage image; QString name = imageFormat.name(); if (name.startsWith(QLatin1String(":/"))) // auto-detect resources name.prepend(QLatin1String("qrc")); QUrl url = QUrl(name); - const QVariant data = m_document->resource(QTextDocument::ImageResource, url); - if (data.type() == QVariant::Image) { - image = qvariant_cast<QImage>(data); - } else if (data.type() == QVariant::ByteArray) { - image.loadFromData(data.toByteArray()); - } - - if (image.isNull()) { - if (image.isNull()) { // try direct loading - name = imageFormat.name(); // remove qrc:/ prefix again - image.load(name); + const QVariant variant = m_document->resource(QTextDocument::ImageResource, url); + if (variant.type() == QVariant::Image) { + image = qvariant_cast<QImage>(variant); + } else if (variant.type() == QVariant::ByteArray) { + data = variant.toByteArray(); + + QBuffer buffer(&data); + buffer.open(QIODevice::ReadOnly); + probeImageData(&buffer, &image, &mimeType, &width, &height); + } else { + // try direct loading + QFile file(imageFormat.name()); + if (file.open(QIODevice::ReadOnly) && !probeImageData(&file, &image, &mimeType, &width, &height)) { + file.seek(0); + data = file.readAll(); } } if (! image.isNull()) { QBuffer imageBytes; - QString filename = m_strategy->createUniqueImageName(); + int imgQuality = imageFormat.quality(); if (imgQuality >= 100 || imgQuality < 0 || image.hasAlphaChannel()) { QImageWriter imageWriter(&imageBytes, "png"); imageWriter.write(image); - m_strategy->addFile(filename, QString::fromLatin1("image/png"), imageBytes.data()); + + data = imageBytes.data(); + mimeType = QStringLiteral("image/png"); } else { // Write images without alpha channel as jpg with quality set by QTextImageFormat QImageWriter imageWriter(&imageBytes, "jpg"); imageWriter.setQuality(imgQuality); imageWriter.write(image); - m_strategy->addFile(filename, QString::fromLatin1("image/jpg"), imageBytes.data()); + + data = imageBytes.data(); + mimeType = QStringLiteral("image/jpg"); } - // get the width/height from the format. - qreal width = imageFormat.hasProperty(QTextFormat::ImageWidth) - ? imageFormat.width() : image.width(); + + width = image.width(); + height = image.height(); + } + + if (!data.isEmpty()) { + if (imageFormat.hasProperty(QTextFormat::ImageWidth)) { + width = imageFormat.width(); + } + if (imageFormat.hasProperty(QTextFormat::ImageHeight)) { + height = imageFormat.height(); + } + + QString filename = m_strategy->createUniqueImageName(); + + m_strategy->addFile(filename, mimeType, data); + writer.writeAttribute(svgNS, QString::fromLatin1("width"), pixelToPoint(width)); - qreal height = imageFormat.hasProperty(QTextFormat::ImageHeight) - ? imageFormat.height() : image.height(); writer.writeAttribute(svgNS, QString::fromLatin1("height"), pixelToPoint(height)); + writer.writeAttribute(textNS, QStringLiteral("anchor-type"), QStringLiteral("as-char")); writer.writeStartElement(drawNS, QString::fromLatin1("image")); writer.writeAttribute(xlinkNS, QString::fromLatin1("href"), filename); writer.writeEndElement(); // image |