#include <QPainter>
#include <QPixmap>
#include <QResizeEvent>
+#include <QTextLayout>
+#include <QTextLine>
#include <QTimer>
#include <QVBoxLayout>
SidebarPage(parent),
m_initialized(false),
m_pendingPreview(false),
+ m_infoTimer(0),
+ m_outdatedPreviewTimer(0),
m_shownUrl(),
m_urlCandidate(),
m_fileItem(),
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();
void InfoSidebarPage::setSelection(const KFileItemList& selection)
{
- if (!m_initialized) {
+ if (!isVisible()) {
return;
}
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;
}
// 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();
+ }
}
}
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.
// 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);
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));
void InfoSidebarPage::showPreview(const KFileItem& item,
const QPixmap& pixmap)
{
+ m_outdatedPreviewTimer->stop();
+
Q_UNUSED(item);
if (m_pendingPreview) {
m_preview->setPixmap(pixmap);
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;
}
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<QString, KFileMetaInfoItem>& items = fileMetaInfo.items();
}
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...
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);
font.setBold(true);
m_nameLabel->setFont(font);
m_nameLabel->setAlignment(Qt::AlignHCenter);
- m_nameLabel->setWordWrap(true);
m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
// preview
projects / dolphin.git / blobdiff