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Show meta info about cover (size, resolution, MIME-type)

This commit is contained in:
Martchus 2018-08-20 21:43:17 +02:00
parent 1357fd1a32
commit 42004c8760
2 changed files with 80 additions and 35 deletions
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110
gui/picturepreviewselection.cpp
View File

@ -15,6 +15,7 @@
#include <qtutilities/misc/conversion.h>
#include <c++utilities/conversion/stringconversion.h>
#include <c++utilities/io/catchiofailure.h>
#include <QAction>
@ -33,6 +34,7 @@
#include <QMenu>
#include <QMessageBox>
#include <QMimeData>
#include <QStringBuilder>
#include <cassert>
#include <functional>
@ -57,6 +59,7 @@ PicturePreviewSelection::PicturePreviewSelection(Tag *tag, KnownField field, QWi
, m_rectItem(nullptr)
, m_tag(tag)
, m_field(field)
, m_currentFileSize(0)
, m_currentTypeIndex(0)
{
m_ui->setupUi(this);
@ -213,6 +216,29 @@ void PicturePreviewSelection::setup(PreviousValueHandling previousValueHandling)
setEnabled(true);
}
/*!
* \brief Updates the tooltip to show the current file size and MIME-type.
*/
void PicturePreviewSelection::updateSizeAndMimeType(size_t fileSize, const QSize &resolution, const QString &mimeType)
{
QStringList info;
info.reserve(3);
if (fileSize) {
info << QString::fromStdString(ConversionUtilities::dataSizeToString(fileSize));
}
if (!resolution.isEmpty()) {
info << QString::number(resolution.width()) % QStringLiteral(" x ") % QString::number(resolution.height()) % QStringLiteral(" px");
}
if (!mimeType.isEmpty()) {
info << mimeType;
}
m_currentFileSize = fileSize;
m_currentResolution = resolution;
m_currentMimeType = mimeType;
setToolTip(info.join(QChar('\n')));
}
/*!
* \brief Pushes the ID3v2 cover values to the specified \a tag.
* \param tag Specifies a tag to push the values to.
@ -282,6 +308,7 @@ void PicturePreviewSelection::clear()
}
updatePreview(m_currentTypeIndex);
updateDescription(m_currentTypeIndex);
updateSizeAndMimeType(0, QSize(), QString());
}
/*!
@ -388,40 +415,49 @@ void PicturePreviewSelection::extractSelected()
void PicturePreviewSelection::displaySelected()
{
assert(m_currentTypeIndex < m_values.size());
TagValue &value = m_values[m_currentTypeIndex];
if (!value.isEmpty()) {
QImage img;
if (value.mimeType() == "-->") {
QFile file(Utility::stringToQString(value.toString(), value.dataEncoding()));
if (file.open(QFile::ReadOnly)) {
img = QImage::fromData(file.readAll());
} else {
QMessageBox::warning(this, QCoreApplication::applicationName(), tr("The attached image can't be found."));
return;
}
const auto &value = m_values[m_currentTypeIndex];
if (value.isEmpty()) {
QMessageBox::warning(this, QCoreApplication::applicationName(), tr("There is no image attached."));
return;
}
// load image
QImage img;
if (value.mimeType() == "-->") {
const auto fileName(Utility::stringToQString(value.toString(), value.dataEncoding()));
QFile file(fileName);
if (file.open(QFile::ReadOnly)) {
img = QImage::fromData(file.readAll());
} else {
img = QImage::fromData(reinterpret_cast<const uchar *>(value.dataPointer()), value.dataSize());
}
if (img.isNull()) {
QMessageBox::warning(this, QCoreApplication::applicationName(), tr("The attached image can't be displayed."));
} else {
QDialog dlg;
dlg.setWindowFlags(Qt::Tool);
dlg.setWindowTitle(tr("Cover - %1").arg(QCoreApplication::applicationName()));
QBoxLayout layout(QBoxLayout::Up);
layout.setMargin(0);
QGraphicsView view(&dlg);
QGraphicsScene scene;
layout.addWidget(&view);
scene.addItem(new QGraphicsPixmapItem(QPixmap::fromImage(img)));
view.setScene(&scene);
view.show();
dlg.setLayout(&layout);
dlg.exec();
QMessageBox::warning(this, QCoreApplication::applicationName(),
tr("The attached image can't be found. It is supposed to be stored as external file \"%1\".").arg(fileName));
return;
}
} else {
QMessageBox::warning(this, QCoreApplication::applicationName(), tr("There is no image attached."));
img = QImage::fromData(reinterpret_cast<const uchar *>(value.dataPointer()), value.dataSize());
}
if (img.isNull()) {
QMessageBox::warning(this, QCoreApplication::applicationName(), tr("The attached image can't be displayed."));
return;
}
// show dialog
QDialog dlg;
dlg.setWindowFlags(Qt::Tool);
const auto additionalInfo = toolTip().replace(QLatin1String("\n"), QLatin1String(", "));
const auto title = !additionalInfo.isEmpty() ? tr("Cover - %1 - %2").arg(additionalInfo, QCoreApplication::applicationName())
: tr("Cover - %1").arg(QCoreApplication::applicationName());
dlg.setWindowTitle(title);
QBoxLayout layout(QBoxLayout::Up);
layout.setMargin(0);
QGraphicsView view(&dlg);
QGraphicsScene scene;
layout.addWidget(&view);
scene.addItem(new QGraphicsPixmapItem(QPixmap::fromImage(img)));
view.setScene(&scene);
view.show();
dlg.setLayout(&layout);
dlg.exec();
}
/*!
@ -430,14 +466,16 @@ void PicturePreviewSelection::displaySelected()
void PicturePreviewSelection::changeMimeTypeOfSelected()
{
assert(m_currentTypeIndex < m_values.size());
TagValue &selectedCover = m_values[m_currentTypeIndex];
auto &selectedCover = m_values[m_currentTypeIndex];
auto mimeType = QString::fromUtf8(selectedCover.mimeType().data());
bool ok;
mimeType = QInputDialog::getText(
this, tr("Enter/confirm mime type"), tr("Confirm or enter the mime type of the selected file."), QLineEdit::Normal, mimeType, &ok);
if (ok) {
selectedCover.setMimeType(mimeType.toUtf8().data());
if (!ok) {
return;
}
selectedCover.setMimeType(mimeType.toUtf8().data());
updateSizeAndMimeType(m_currentFileSize, m_currentResolution, mimeType);
}
/*!
@ -591,9 +629,10 @@ void PicturePreviewSelection::updatePreview(int index)
QImage img;
if (value.mimeType() == "-->") {
QFile file(Utility::stringToQString(value.toString(), value.dataEncoding()));
if (file.open(QFile::ReadOnly))
if (file.open(QFile::ReadOnly)) {
img = QImage::fromData(file.readAll());
else {
updateSizeAndMimeType(static_cast<std::size_t>(file.size()), img.size(), QString());
} else {
m_textItem->setPlainText(tr("The attached image can't be found."));
m_textItem->setVisible(true);
m_pixmapItem->setVisible(false);
@ -601,6 +640,7 @@ void PicturePreviewSelection::updatePreview(int index)
}
} else {
img = QImage::fromData(reinterpret_cast<const uchar *>(value.dataPointer()), value.dataSize());
updateSizeAndMimeType(value.dataSize(), img.size(), QString::fromStdString(value.mimeType()));
}
if (img.isNull()) {
m_pixmap = QPixmap();

5
gui/picturepreviewselection.h
View File

@ -5,6 +5,7 @@
#include <tagparser/tag.h>
#include <QSize>
#include <QWidget>
#include <memory>
@ -72,6 +73,7 @@ private slots:
private:
void setup(PreviousValueHandling previousValueHandling = PreviousValueHandling::Clear);
void updateSizeAndMimeType(std::size_t fileSize, const QSize &resolution, const QString &mimeType);
std::unique_ptr<Ui::PicturePreviewSelection> m_ui;
QGraphicsScene *m_scene;
@ -82,6 +84,9 @@ private:
TagParser::Tag *m_tag;
TagParser::KnownField m_field;
QList<TagParser::TagValue> m_values;
std::size_t m_currentFileSize;
QSize m_currentResolution;
QString m_currentMimeType;
int m_currentTypeIndex;
};