X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/8103ead940c5b680c613144ee588af5ed1ecfdd0..148282e2d856b47ceb191eeef4c834118c8cdffd:/src/infosidebarpage.cpp diff --git a/src/infosidebarpage.cpp b/src/infosidebarpage.cpp index 4cb4e22c6..64d5d44c2 100644 --- a/src/infosidebarpage.cpp +++ b/src/infosidebarpage.cpp @@ -40,6 +40,8 @@ #include #include #include +#include +#include #include #include @@ -52,6 +54,8 @@ InfoSidebarPage::InfoSidebarPage(QWidget* parent) : SidebarPage(parent), m_initialized(false), m_pendingPreview(false), + m_infoTimer(0), + m_outdatedPreviewTimer(0), m_shownUrl(), m_urlCandidate(), m_fileItem(), @@ -77,8 +81,8 @@ QSize InfoSidebarPage::sizeHint() const void InfoSidebarPage::setUrl(const KUrl& url) { SidebarPage::setUrl(url); - if (url.isValid() && !m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) { - if (m_initialized) { + if (url.isValid() && !isEqualToShownUrl(url)) { + if (isVisible()) { cancelRequest(); m_shownUrl = url; showItemInfo(); @@ -90,7 +94,7 @@ void InfoSidebarPage::setUrl(const KUrl& url) void InfoSidebarPage::setSelection(const KFileItemList& selection) { - if (!m_initialized) { + if (!isVisible()) { return; } @@ -106,19 +110,21 @@ void InfoSidebarPage::setSelection(const KFileItemList& selection) const int count = selection.count(); if (count == 0) { - m_shownUrl = url(); - showItemInfo(); + if (!isEqualToShownUrl(url())) { + m_shownUrl = url(); + showItemInfo(); + } } else { if ((count == 1) && !selection.first().url().isEmpty()) { m_urlCandidate = selection.first().url(); } - m_timer->start(TimerDelay); + m_infoTimer->start(); } } void InfoSidebarPage::requestDelayedItemInfo(const KFileItem& item) { - if (!m_initialized) { + if (!isVisible()) { return; } @@ -130,12 +136,15 @@ void InfoSidebarPage::requestDelayedItemInfo(const KFileItem& item) // show information regarding the selection. if (m_selection.size() > 0) { m_pendingPreview = false; - m_timer->start(TimerDelay); + m_infoTimer->start(); } - } else if (!item.url().isEmpty()) { - m_urlCandidate = item.url(); - m_fileItem = item; - m_timer->start(TimerDelay); + } else { + const KUrl url = item.url(); + if (url.isValid() && !isEqualToShownUrl(url)) { + m_urlCandidate = item.url(); + m_fileItem = item; + m_infoTimer->start(); + } } } @@ -155,7 +164,7 @@ void InfoSidebarPage::showEvent(QShowEvent* event) void InfoSidebarPage::resizeEvent(QResizeEvent* event) { - if (m_initialized) { + if (isVisible()) { // If the text inside the name label or the info label cannot // get wrapped, then the maximum width of the label is increased // so that the width of the information sidebar gets increased. @@ -167,7 +176,7 @@ void InfoSidebarPage::resizeEvent(QResizeEvent* event) // try to increase the preview as large as possible m_preview->setSizeHint(QSize(maxWidth, maxWidth)); m_urlCandidate = m_shownUrl; // reset the URL candidate if a resizing is done - m_timer->start(TimerDelay); + m_infoTimer->start(); } SidebarPage::resizeEvent(event); @@ -181,58 +190,65 @@ void InfoSidebarPage::showItemInfo() cancelRequest(); - const KUrl file = (!m_fileItem.isNull() || m_selection.isEmpty()) ? m_shownUrl : m_selection[0].url(); - if (!file.isValid()) { - return; - } - - const int selectionCount = m_selection.count(); - if (m_fileItem.isNull() && (selectionCount > 1)) { + if (showMultipleSelectionInfo()) { KIconLoader iconLoader; QPixmap icon = iconLoader.loadIcon("dialog-information", KIconLoader::NoGroup, KIconLoader::SizeEnormous); m_preview->setPixmap(icon); - m_nameLabel->setText(i18ncp("@info", "%1 item selected", "%1 items selected", selectionCount)); - } else if (!applyPlace(file)) { - // try to get a preview pixmap from the item... - KUrl::List list; - list.append(file); - - m_pendingPreview = true; - - KIconEffect iconEffect; - QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(), KIconLoader::Desktop, KIconLoader::DisabledState); - m_preview->setPixmap(disabledPixmap); - - KIO::PreviewJob* job = KIO::filePreview(list, - m_preview->width(), - m_preview->height(), - 0, - 0, - true, - false); - job->setIgnoreMaximumSize(true); - - connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)), - this, SLOT(showPreview(const KFileItem&, const QPixmap&))); - connect(job, SIGNAL(failed(const KFileItem&)), - this, SLOT(showIcon(const KFileItem&))); - - m_nameLabel->setText(file.fileName()); + setNameLabelText(i18ncp("@info", "%1 item selected", "%1 items selected", m_selection.count())); + m_shownUrl = KUrl(); + } else { + const KFileItem item = fileItem(); + const KUrl itemUrl = item.url(); + if (!applyPlace(itemUrl)) { + // try to get a preview pixmap from the item... + m_pendingPreview = true; + + // Mark the currently shown preview as outdated. This is done + // with a small delay to prevent a flickering when the next preview + // can be shown within a short timeframe. + m_outdatedPreviewTimer->start(); + + KIO::PreviewJob* job = KIO::filePreview(KUrl::List() << itemUrl, + m_preview->width(), + m_preview->height(), + 0, + 0, + true, + false); + job->setIgnoreMaximumSize(true); + + connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)), + this, SLOT(showPreview(const KFileItem&, const QPixmap&))); + connect(job, SIGNAL(failed(const KFileItem&)), + this, SLOT(showIcon(const KFileItem&))); + + setNameLabelText(itemUrl.fileName()); + } } showMetaInfo(); } -void InfoSidebarPage::slotTimeout() +void InfoSidebarPage::slotInfoTimeout() { m_shownUrl = m_urlCandidate; showItemInfo(); } +void InfoSidebarPage::markOutdatedPreview() +{ + KIconEffect iconEffect; + QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(), + KIconLoader::Desktop, + KIconLoader::DisabledState); + m_preview->setPixmap(disabledPixmap); +} + void InfoSidebarPage::showIcon(const KFileItem& item) { + m_outdatedPreviewTimer->stop(); m_pendingPreview = false; if (!applyPlace(item.url())) { m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous)); @@ -242,6 +258,8 @@ void InfoSidebarPage::showIcon(const KFileItem& item) void InfoSidebarPage::showPreview(const KFileItem& item, const QPixmap& pixmap) { + m_outdatedPreviewTimer->stop(); + Q_UNUSED(item); if (m_pendingPreview) { m_preview->setPixmap(pixmap); @@ -321,7 +339,7 @@ bool InfoSidebarPage::applyPlace(const KUrl& url) QModelIndex index = placesModel->index(i, 0); if (url.equals(placesModel->url(index), KUrl::CompareWithoutTrailingSlash)) { - m_nameLabel->setText(placesModel->text(index)); + setNameLabelText(placesModel->text(index)); m_preview->setPixmap(placesModel->icon(index).pixmap(128, 128)); return true; } @@ -332,40 +350,49 @@ bool InfoSidebarPage::applyPlace(const KUrl& url) void InfoSidebarPage::cancelRequest() { - m_timer->stop(); + m_infoTimer->stop(); } void InfoSidebarPage::showMetaInfo() { m_metaTextLabel->clear(); - if ((m_selection.size() <= 1) || !m_fileItem.isNull()) { - KFileItem fileItem; - if (m_fileItem.isNull()) { - // no pending request is ongoing - const KUrl url = (m_selection.size() == 1) ? m_selection.first().url() : m_shownUrl; - fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, url); - fileItem.refresh(); - } else { - fileItem = m_fileItem; + if (showMultipleSelectionInfo()) { + if (m_metaDataWidget != 0) { + KUrl::List urls; + foreach (const KFileItem& item, m_selection) { + urls.append(item.targetUrl()); + } + m_metaDataWidget->setFiles(urls); } - if (fileItem.isDir()) { + quint64 totalSize = 0; + foreach (const KFileItem& item, m_selection) { + // Only count the size of files, not dirs to match what + // DolphinViewContainer::selectionStatusBarText() does. + if (!item.isDir() && !item.isLink()) { + totalSize += item.size(); + } + } + m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize)); + } else { + const KFileItem item = fileItem(); + if (item.isDir()) { m_metaTextLabel->add(i18nc("@label", "Type:"), i18nc("@label", "Folder")); - m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString()); + m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString()); } else { - m_metaTextLabel->add(i18nc("@label", "Type:"), fileItem.mimeComment()); + m_metaTextLabel->add(i18nc("@label", "Type:"), item.mimeComment()); - m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(fileItem.size())); - m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString()); + m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(item.size())); + m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString()); - if (fileItem.isLocalFile()) { + if (item.isLocalFile()) { // TODO: See convertMetaInfo below, find a way to display only interesting information // in a readable way const KFileMetaInfo::WhatFlags flags = KFileMetaInfo::Fastest | KFileMetaInfo::TechnicalInfo | KFileMetaInfo::ContentInfo; - const QString path = fileItem.url().path(); + const QString path = item.url().path(); const KFileMetaInfo fileMetaInfo(path, QString(), flags); if (fileMetaInfo.isValid()) { const QHash& items = fileMetaInfo.items(); @@ -385,46 +412,29 @@ void InfoSidebarPage::showMetaInfo() } if (m_metaDataWidget != 0) { - m_metaDataWidget->setFile(fileItem.targetUrl()); + m_metaDataWidget->setFile(item.targetUrl()); } - } else { - if (m_metaDataWidget != 0) { - KUrl::List urls; - foreach (const KFileItem& item, m_selection) { - urls.append(item.targetUrl()); - } - m_metaDataWidget->setFiles(urls); - } - - quint64 totalSize = 0; - foreach (const KFileItem& item, m_selection) { - // Only count the size of files, not dirs to match what - // DolphinViewContainer::selectionStatusBarText() does. - if (!item.isDir() && !item.isLink()) { - totalSize += item.size(); - } - } - m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize)); } } bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const { - // TODO: This code prevents that interesting meta information might be hidden - // and only bypasses the current problem that not all the meta information should - // be shown to the user. Check whether it's possible with Nepomuk to show - // all "user relevant" information in a readable way... - struct MetaKey { const char* key; - const char* text; + QString text; }; // sorted list of keys, where its data should be shown static const MetaKey keys[] = { - { "audio.album", "Album:" }, - { "audio.artist", "Artist:" }, - { "audio.title", "Title:" }, + { "http://freedesktop.org/standards/xesam/1.0/core#album", i18nc("@label", "Album:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#artist", i18nc("@label", "Artist:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#genre", i18nc("@label", "Genre:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#height", i18nc("@label", "Height:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#lineCount", i18nc("@label", "Lines:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#title", i18nc("@label", "Title:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#type", i18nc("@label", "Type:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#trackNumber", i18nc("@label", "Track:") }, + { "http://freedesktop.org/standards/xesam/1.0/core#width", i18nc("@label", "Width:") } }; // do a binary search for the key... @@ -446,14 +456,81 @@ bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const return false; } +KFileItem InfoSidebarPage::fileItem() const +{ + if (!m_fileItem.isNull()) { + return m_fileItem; + } + + if (!m_selection.isEmpty()) { + Q_ASSERT(m_selection.count() == 1); + return m_selection.first(); + } + + // no item is hovered and no selection has been done: provide + // an item for the directory represented by m_shownUrl + KFileItem item(KFileItem::Unknown, KFileItem::Unknown, m_shownUrl); + item.refresh(); + return item; +} + +bool InfoSidebarPage::showMultipleSelectionInfo() const +{ + return m_fileItem.isNull() && (m_selection.count() > 1); +} + +bool InfoSidebarPage::isEqualToShownUrl(const KUrl& url) const +{ + return m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash); +} + +void InfoSidebarPage::setNameLabelText(const QString& text) +{ + QTextOption textOption; + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + + QTextLayout textLayout(text); + textLayout.setFont(m_nameLabel->font()); + textLayout.setTextOption(textOption); + + QString wrappedText; + wrappedText.reserve(text.length()); + + // wrap the text to fit into the width of m_nameLabel + textLayout.beginLayout(); + QTextLine line = textLayout.createLine(); + while (line.isValid()) { + line.setLineWidth(m_nameLabel->width()); + wrappedText += text.mid(line.textStart(), line.textLength()); + + line = textLayout.createLine(); + if (line.isValid()) { + wrappedText += QChar::LineSeparator; + } + } + textLayout.endLayout(); + + m_nameLabel->setText(wrappedText); +} + void InfoSidebarPage::init() { const int spacing = KDialog::spacingHint(); - m_timer = new QTimer(this); - m_timer->setSingleShot(true); - connect(m_timer, SIGNAL(timeout()), - this, SLOT(slotTimeout())); + m_infoTimer = new QTimer(this); + m_infoTimer->setInterval(300); + m_infoTimer->setSingleShot(true); + connect(m_infoTimer, SIGNAL(timeout()), + this, SLOT(slotInfoTimeout())); + + // Initialize timer for disabling an outdated preview with a small + // delay. This prevents flickering if the new preview can be generated + // within a very small timeframe. + m_outdatedPreviewTimer = new QTimer(this); + m_outdatedPreviewTimer->setInterval(300); + m_outdatedPreviewTimer->setSingleShot(true); + connect(m_outdatedPreviewTimer, SIGNAL(timeout()), + this, SLOT(markOutdatedPreview())); QVBoxLayout* layout = new QVBoxLayout; layout->setSpacing(spacing); @@ -464,7 +541,6 @@ void InfoSidebarPage::init() font.setBold(true); m_nameLabel->setFont(font); m_nameLabel->setAlignment(Qt::AlignHCenter); - m_nameLabel->setWordWrap(true); m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); // preview