/***************************************************************************
+ * Copyright (C) 2008 by Sebastian Trueg <trueg@kde.org> *
* Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at> *
* *
* This program is free software; you can redistribute it and/or modify *
#include <kfileitem.h>
#include <klocale.h>
-#include <config-nepomuk.h>
-#ifdef HAVE_NEPOMUK
-#include "commentwidget_p.h"
-#include "nepomukmassupdatejob_p.h"
-#include "taggingwidget_p.h"
-#endif
-
-#include <nepomuk/kratingwidget.h>
-
#include <QGridLayout>
#include <QLabel>
#include <QList>
#include <QString>
+#include <config-nepomuk.h>
+#ifdef HAVE_NEPOMUK
+ #include "commentwidget_p.h"
+ #include "nepomukmassupdatejob_p.h"
+ #include "taggingwidget_p.h"
+
+ #include <nepomuk/kratingwidget.h>
+ #include <nepomuk/resource.h>
+ #include <nepomuk/tag.h>
+ #include <Soprano/Vocabulary/Xesam>
+ #include <QMutex>
+ #include <QThread>
+#endif
+
class MetaDataWidget::Private
{
public:
void addRow(QLabel* label, QWidget* infoWidget);
void setRowVisible(QWidget* infoWidget, bool visible);
- QList<Row> m_rows;
+ void slotLoadingFinished();
+
+ QList<Row> rows;
+
+ QGridLayout* gridLayout;
- QGridLayout* m_gridLayout;
+ QLabel* typeInfo;
+ QLabel* sizeLabel;
+ QLabel* sizeInfo;
+ QLabel* modifiedInfo;
+ QLabel* ownerInfo;
+ QLabel* permissionsInfo;
- QLabel* m_typeInfo;
- QLabel* m_sizeLabel;
- QLabel* m_sizeInfo;
- QLabel* m_modifiedInfo;
- QLabel* m_ownerInfo;
- QLabel* m_permissionsInfo;
#ifdef HAVE_NEPOMUK
- KRatingWidget* m_ratingWidget;
- TaggingWidget* m_taggingWidget;
- CommentWidget* m_commentWidget;
+ KRatingWidget* ratingWidget;
+ TaggingWidget* taggingWidget;
+ CommentWidget* commentWidget;
+
+ // shared data between the GUI-thread and
+ // the loader-thread (see LoadFilesThread):
+ QMutex mutex;
+ struct SharedData
+ {
+ int rating;
+ QString comment;
+ QList<Nepomuk::Tag> tags;
+ } sharedData;
+
+ /**
+ * Loads the meta data of files and writes
+ * the result into a shared data pool that
+ * can be used by the widgets in the GUI thread.
+ */
+ class LoadFilesThread : public QThread
+ {
+ public:
+ LoadFilesThread(SharedData* sharedData, QMutex* mutex);
+ virtual ~LoadFilesThread();
+ void loadFiles(const KUrl::List& urls);
+ virtual void run();
+
+ private:
+ SharedData* m_sharedData;
+ QMutex* m_mutex;
+ KUrl::List m_urls;
+ bool m_canceled;
+ };
+
+ LoadFilesThread* loadFilesThread;
#endif
private:
};
MetaDataWidget::Private::Private(MetaDataWidget* parent) :
- m_rows(),
- m_gridLayout(0),
- m_typeInfo(0),
- m_sizeLabel(0),
- m_sizeInfo(0),
- m_modifiedInfo(0),
- m_ownerInfo(0),
- m_permissionsInfo(0),
+ rows(),
+ gridLayout(0),
+ typeInfo(0),
+ sizeLabel(0),
+ sizeInfo(0),
+ modifiedInfo(0),
+ ownerInfo(0),
+ permissionsInfo(0),
#ifdef HAVE_NEPOMUK
- m_ratingWidget(0),
- m_taggingWidget(0),
- m_commentWidget(0),
+ ratingWidget(0),
+ taggingWidget(0),
+ commentWidget(0),
+ loadFilesThread(0),
#endif
q(parent)
{
- m_gridLayout = new QGridLayout(parent);
-
- m_typeInfo = new QLabel(parent);
- m_sizeLabel = new QLabel(parent);
- m_sizeInfo = new QLabel(parent);
- m_modifiedInfo = new QLabel(parent);
- m_ownerInfo = new QLabel(parent);
- m_permissionsInfo = new QLabel(parent);
+ gridLayout = new QGridLayout(parent);
+
+ typeInfo = new QLabel(parent);
+ sizeLabel = new QLabel(parent);
+ sizeInfo = new QLabel(parent);
+ modifiedInfo = new QLabel(parent);
+ ownerInfo = new QLabel(parent);
+ permissionsInfo = new QLabel(parent);
#ifdef HAVE_NEPOMUK
- m_ratingWidget = new KRatingWidget(parent);
- m_taggingWidget = new TaggingWidget(parent);
- m_commentWidget = new CommentWidget(parent);
+ ratingWidget = new KRatingWidget(parent);
+ taggingWidget = new TaggingWidget(parent);
+ commentWidget = new CommentWidget(parent);
#endif
- addRow(new QLabel(i18nc("@label", "Type:"), parent), m_typeInfo);
- addRow(m_sizeLabel, m_sizeInfo);
- addRow(new QLabel(i18nc("@label", "Modified:"), parent), m_modifiedInfo);
- addRow(new QLabel(i18nc("@label", "Owner:"), parent), m_ownerInfo);
- addRow(new QLabel(i18nc("@label", "Permissions:"), parent), m_permissionsInfo);
+ addRow(new QLabel(i18nc("@label", "Type:"), parent), typeInfo);
+ addRow(sizeLabel, sizeInfo);
+ addRow(new QLabel(i18nc("@label", "Modified:"), parent), modifiedInfo);
+ addRow(new QLabel(i18nc("@label", "Owner:"), parent), ownerInfo);
+ addRow(new QLabel(i18nc("@label", "Permissions:"), parent), permissionsInfo);
#ifdef HAVE_NEPOMUK
- addRow(new QLabel(i18nc("@label", "Rating:"), parent), m_ratingWidget);
- addRow(new QLabel(i18nc("@label", "Tags:"), parent), m_taggingWidget);
- addRow(new QLabel(i18nc("@label", "Comment:"), parent), m_commentWidget);
+ addRow(new QLabel(i18nc("@label", "Rating:"), parent), ratingWidget);
+ addRow(new QLabel(i18nc("@label", "Tags:"), parent), taggingWidget);
+ addRow(new QLabel(i18nc("@label", "Comment:"), parent), commentWidget);
+
+ sharedData.rating = 0;
+ loadFilesThread = new LoadFilesThread(&sharedData, &mutex);
+ connect(loadFilesThread, SIGNAL(finished()), q, SLOT(slotLoadingFinished()));
#endif
}
MetaDataWidget::Private::~Private()
{
+#ifdef HAVE_NEPOMUK
+ delete loadFilesThread;
+#endif
}
void MetaDataWidget::Private::addRow(QLabel* label, QWidget* infoWidget)
Row row;
row.label = label;
row.infoWidget = infoWidget;
- m_rows.append(row);
+ rows.append(row);
+ // use a brighter color for the label
QPalette palette = label->palette();
QColor textColor = palette.color(QPalette::Text);
textColor.setAlpha(128);
palette.setColor(QPalette::WindowText, textColor);
label->setPalette(palette);
- const int rowIndex = m_rows.count();
- m_gridLayout->addWidget(label, rowIndex, 0, Qt::AlignLeft);
- m_gridLayout->addWidget(infoWidget, rowIndex, 1, Qt::AlignRight);
+ // add the row to grid layout
+ const int rowIndex = rows.count();
+ gridLayout->addWidget(label, rowIndex, 0, Qt::AlignLeft);
+ gridLayout->addWidget(infoWidget, rowIndex, 1, Qt::AlignRight);
}
void MetaDataWidget::Private::setRowVisible(QWidget* infoWidget, bool visible)
{
- foreach (const Row& row, m_rows) {
+ foreach (const Row& row, rows) {
if (row.infoWidget == infoWidget) {
row.label->setVisible(visible);
row.infoWidget->setVisible(visible);
}
}
+void MetaDataWidget::Private::slotLoadingFinished()
+{
+#ifdef HAVE_NEPOMUK
+ QMutexLocker locker(&mutex);
+ ratingWidget->setRating(sharedData.rating);
+ commentWidget->setText(sharedData.comment);
+ taggingWidget->setTags(sharedData.tags);
+#endif
+}
+
+#ifdef HAVE_NEPOMUK
+MetaDataWidget::Private::LoadFilesThread::LoadFilesThread(
+ MetaDataWidget::Private::SharedData* sharedData,
+ QMutex* mutex) :
+ m_sharedData(sharedData),
+ m_mutex(mutex),
+ m_urls(),
+ m_canceled(false)
+{
+}
+
+MetaDataWidget::Private::LoadFilesThread::~LoadFilesThread()
+{
+ // This thread may very well be deleted during execution. We need
+ // to protect it from crashes here.
+ m_canceled = true;
+ wait();
+}
+
+void MetaDataWidget::Private::LoadFilesThread::loadFiles(const KUrl::List& urls)
+{
+ QMutexLocker locker(m_mutex);
+ m_urls = urls;
+ m_canceled = false;
+ start();
+}
+
+void MetaDataWidget::Private::LoadFilesThread::run()
+{
+ QMutexLocker locker(m_mutex);
+ const KUrl::List urls = m_urls;
+ locker.unlock();
+
+ bool first = true;
+ unsigned int rating = 0;
+ QString comment;
+ QList<Nepomuk::Tag> tags;
+ foreach (const KUrl& url, urls) {
+ if (m_canceled) {
+ return;
+ }
+
+ Nepomuk::Resource file(url, Soprano::Vocabulary::Xesam::File());
+
+ if (!first && (rating != file.rating())) {
+ rating = 0; // reset rating
+ } else if (first) {
+ rating = file.rating();
+ }
+
+ if (!first && (comment != file.description())) {
+ comment.clear(); // reset comment
+ } else if (first) {
+ comment = file.description();
+ }
+
+ if (!first && (tags != file.tags())) {
+ tags.clear(); // reset tags
+ } else if (first) {
+ tags = file.tags();
+ }
+
+ first = false;
+ }
+
+ locker.relock();
+ m_sharedData->rating = rating;
+ m_sharedData->comment = comment;
+ m_sharedData->tags = tags;
+}
+#endif
MetaDataWidget::MetaDataWidget(QWidget* parent) :
QWidget(parent),
{
// update values for "type", "size", "modified",
// "owner" and "permissions" synchronously
- d->m_sizeLabel->setText(i18nc("@label", "Size:"));
+ d->sizeLabel->setText(i18nc("@label", "Size:"));
if (item.isDir()) {
- d->m_typeInfo->setText(i18nc("@label", "Folder"));
- d->setRowVisible(d->m_sizeInfo, false);
+ d->typeInfo->setText(i18nc("@label", "Folder"));
+ d->setRowVisible(d->sizeInfo, false);
} else {
- d->m_typeInfo->setText(item.mimeComment());
- d->m_sizeInfo->setText(KIO::convertSize(item.size()));
- d->setRowVisible(d->m_sizeInfo, true);
+ d->typeInfo->setText(item.mimeComment());
+ d->sizeInfo->setText(KIO::convertSize(item.size()));
+ d->setRowVisible(d->sizeInfo, true);
}
- d->m_modifiedInfo->setText(item.timeString());
- d->m_ownerInfo->setText(item.user());
- d->m_permissionsInfo->setText(item.permissionsString());
+ d->modifiedInfo->setText(item.timeString());
+ d->ownerInfo->setText(item.user());
+ d->permissionsInfo->setText(item.permissionsString());
setItems(KFileItemList() << item);
}
if (items.count() > 1) {
// calculate the size of all items and show this
// information to the user
- d->m_sizeLabel->setText(i18nc("@label", "Total Size:"));
- d->setRowVisible(d->m_sizeInfo, true);
+ d->sizeLabel->setText(i18nc("@label", "Total Size:"));
+ d->setRowVisible(d->sizeInfo, true);
quint64 totalSize = 0;
foreach (const KFileItem& item, items) {
totalSize += item.size();
}
}
- d->m_sizeInfo->setText(KIO::convertSize(totalSize));
+ d->sizeInfo->setText(KIO::convertSize(totalSize));
}
+
+#ifdef HAVE_NEPOMUK
+ QList<KUrl> urls;
+ foreach (const KFileItem& item, items) {
+ const KUrl url = item.nepomukUri();
+ if (url.isValid()) {
+ urls.append(url);
+ }
+ }
+ d->loadFilesThread->loadFiles(urls);
+#endif
}
#include "metadatawidget.moc"
projects / dolphin.git / commitdiff