X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/87eb2a2ff3c3186209bbb1cfc19c5b2f16511f11..abb6807645598e8117e98bbf232cd9cd90fe019a:/src/panels/information/informationpanel.cpp diff --git a/src/panels/information/informationpanel.cpp b/src/panels/information/informationpanel.cpp index c586742cf..028f0ae0c 100644 --- a/src/panels/information/informationpanel.cpp +++ b/src/panels/information/informationpanel.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2006 by Peter Penz * + * Copyright (C) 2006-2009 by Peter Penz * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -18,67 +18,22 @@ ***************************************************************************/ #include "informationpanel.h" - -#include - -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef HAVE_NEPOMUK -#include -#include -#include -#endif - -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "settings/dolphinsettings.h" -#include "metadatawidget.h" -#include "metatextlabel.h" -#include "phononwidget.h" -#include "pixmapviewer.h" +#include +#include "informationpanelcontent.h" InformationPanel::InformationPanel(QWidget* parent) : Panel(parent), m_initialized(false), - m_pendingPreview(false), m_infoTimer(0), - m_outdatedPreviewTimer(0), + m_urlChangedTimer(0), + m_resetUrlTimer(0), m_shownUrl(), m_urlCandidate(), + m_invalidUrlCandidate(), m_fileItem(), m_selection(), - m_nameLabel(0), - m_preview(0), - m_phononWidget(0), - m_metaDataWidget(0), - m_metaTextArea(0), - m_metaTextLabel(0) + m_content(0) { } @@ -100,7 +55,11 @@ void InformationPanel::setUrl(const KUrl& url) if (isVisible()) { cancelRequest(); m_shownUrl = url; - showItemInfo(); + // Update the content with a delay. This gives + // the directory lister the chance to show the content + // before expensive operations are done to show + // meta information. + m_urlChangedTimer->start(); } else { m_shownUrl = url; } @@ -150,7 +109,6 @@ void InformationPanel::requestDelayedItemInfo(const KFileItem& item) // The cursor is above the viewport. If files are selected, // show information regarding the selection. if (m_selection.size() > 0) { - m_pendingPreview = false; m_infoTimer->start(); } } else { @@ -180,31 +138,16 @@ void InformationPanel::showEvent(QShowEvent* event) void InformationPanel::resizeEvent(QResizeEvent* event) { 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 panel gets increased. - // To prevent this, the maximum width is adjusted to - // the current width of the panel. - const int maxWidth = event->size().width() - KDialog::spacingHint() * 4; - m_nameLabel->setMaximumWidth(maxWidth); - - // 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_urlCandidate = m_shownUrl; m_infoTimer->start(); } Panel::resizeEvent(event); } -bool InformationPanel::eventFilter(QObject* obj, QEvent* event) +void InformationPanel::contextMenuEvent(QContextMenuEvent* event) { - // Check whether the size of the meta text area has changed and adjust - // the fixed width in a way that no horizontal scrollbar needs to be shown. - if ((obj == m_metaTextArea->viewport()) && (event->type() == QEvent::Resize)) { - QResizeEvent* resizeEvent = static_cast(event); - m_metaTextLabel->setFixedWidth(resizeEvent->size().width()); - } - return Panel::eventFilter(obj, event); + m_content->configureSettings(); + Panel::contextMenuEvent(event); } void InformationPanel::showItemInfo() @@ -216,43 +159,25 @@ void InformationPanel::showItemInfo() cancelRequest(); if (showMultipleSelectionInfo()) { - KIconLoader iconLoader; - QPixmap icon = iconLoader.loadIcon("dialog-information", - KIconLoader::NoGroup, - KIconLoader::SizeEnormous); - m_preview->setPixmap(icon); - setNameLabelText(i18ncp("@info", "%1 item selected", "%1 items selected", m_selection.count())); + m_content->showItems(m_selection); 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(KFileItemList() << item, - m_preview->width(), - m_preview->height(), - 0, - 0, - false, - 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()); + KFileItem item; + if (!m_fileItem.isNull()) { + item = m_fileItem; + } else if (!m_selection.isEmpty()) { + Q_ASSERT(m_selection.count() == 1); + item = m_selection.first(); + } else { + // no item is hovered and no selection has been done: provide + // an item for the directory represented by m_shownUrl + m_fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, m_shownUrl); + m_fileItem.refresh(); + item = m_fileItem; } - } - showMetaInfo(); + m_content->showItem(item); + } } void InformationPanel::slotInfoTimeout() @@ -261,43 +186,26 @@ void InformationPanel::slotInfoTimeout() showItemInfo(); } -void InformationPanel::markOutdatedPreview() -{ - KIconEffect iconEffect; - QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(), - KIconLoader::Desktop, - KIconLoader::DisabledState); - m_preview->setPixmap(disabledPixmap); -} - -void InformationPanel::showIcon(const KFileItem& item) -{ - m_outdatedPreviewTimer->stop(); - m_pendingPreview = false; - if (!applyPlace(item.url())) { - m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous)); - } -} - -void InformationPanel::showPreview(const KFileItem& item, - const QPixmap& pixmap) +void InformationPanel::reset() { - m_outdatedPreviewTimer->stop(); - - Q_UNUSED(item); - if (m_pendingPreview) { - m_preview->setPixmap(pixmap); - m_pendingPreview = false; + if (m_invalidUrlCandidate == m_shownUrl) { + m_invalidUrlCandidate = KUrl(); + + // The current URL is still invalid. Reset + // the content to show the directory URL. + m_selection.clear(); + m_shownUrl = url(); + m_fileItem = KFileItem(); + showItemInfo(); } } void InformationPanel::slotFileRenamed(const QString& source, const QString& dest) { if (m_shownUrl == KUrl(source)) { - // the currently shown file has been renamed, hence update the item information - // for the renamed file - KFileItem item(KFileItem::Unknown, KFileItem::Unknown, KUrl(dest)); - requestDelayedItemInfo(item); + m_shownUrl = KUrl(dest); + m_fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, m_shownUrl); + showItemInfo(); } } @@ -327,7 +235,7 @@ void InformationPanel::slotFilesRemoved(const QStringList& files) if (m_shownUrl == KUrl(fileName)) { // the currently shown item has been removed, show // the parent directory as fallback - reset(); + markUrlAsInvalid(); break; } } @@ -347,27 +255,9 @@ void InformationPanel::slotLeftDirectory(const QString& directory) // The signal 'leftDirectory' is also emitted when a media // has been unmounted. In this case no directory change will be // done in Dolphin, but the Information Panel must be updated to - // indicate an invalid directory. - reset(); - } -} - -bool InformationPanel::applyPlace(const KUrl& url) -{ - KFilePlacesModel* placesModel = DolphinSettings::instance().placesModel(); - int count = placesModel->rowCount(); - - for (int i = 0; i < count; ++i) { - QModelIndex index = placesModel->index(i, 0); - - if (url.equals(placesModel->url(index), KUrl::CompareWithoutTrailingSlash)) { - setNameLabelText(placesModel->text(index)); - m_preview->setPixmap(placesModel->icon(index).pixmap(128, 128)); - return true; - } + // indicate an invalid directory. + markUrlAsInvalid(); } - - return false; } void InformationPanel::cancelRequest() @@ -375,95 +265,6 @@ void InformationPanel::cancelRequest() m_infoTimer->stop(); } -void InformationPanel::showMetaInfo() -{ - m_metaTextLabel->clear(); - - if (showMultipleSelectionInfo()) { - 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)); - - delete m_phononWidget; - m_phononWidget = 0; - } else { - const KFileItem item = fileItem(); - if (item.isDir()) { - m_metaTextLabel->add(i18nc("@label", "Type:"), i18nc("@label", "Folder")); - m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString()); - } else { - m_metaTextLabel->add(i18nc("@label", "Type:"), item.mimeComment()); - - m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(item.size())); - m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString()); - -#ifdef HAVE_NEPOMUK - Nepomuk::Resource res(item.url()); - - QHash properties = res.properties(); - QHash::const_iterator it = properties.constBegin(); - while (it != properties.constEnd()) { - Nepomuk::Types::Property prop(it.key()); - // TODO: use Nepomuk::formatValue(res, prop) if available - // instead of it.value().toString() - m_metaTextLabel->add(prop.label(), it.value().toString()); - ++it; - } -#endif - } - - if (m_metaDataWidget != 0) { - m_metaDataWidget->setFile(item.targetUrl()); - } - - if (Phonon::BackendCapabilities::isMimeTypeAvailable(item.mimetype())) { - if (m_phononWidget == 0) { - m_phononWidget = new PhononWidget(this); - - QVBoxLayout* vBoxLayout = qobject_cast(layout()); - Q_ASSERT(vBoxLayout != 0); - vBoxLayout->insertWidget(3, m_phononWidget); - } - m_phononWidget->setUrl(item.url()); - } else { - delete m_phononWidget; - m_phononWidget = 0; - } - } -} - -KFileItem InformationPanel::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 InformationPanel::showMultipleSelectionInfo() const { return m_fileItem.isNull() && (m_selection.count() > 1); @@ -474,110 +275,33 @@ bool InformationPanel::isEqualToShownUrl(const KUrl& url) const return m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash); } -void InformationPanel::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 InformationPanel::reset() +void InformationPanel::markUrlAsInvalid() { - m_selection.clear(); - m_shownUrl = url(); - m_fileItem = KFileItem(); - showItemInfo(); + m_invalidUrlCandidate = m_shownUrl; + m_resetUrlTimer->start(); } void InformationPanel::init() { - const int spacing = KDialog::spacingHint(); + const int defaultDelay = 300; m_infoTimer = new QTimer(this); - m_infoTimer->setInterval(300); + m_infoTimer->setInterval(defaultDelay); 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); - - // name - m_nameLabel = new QLabel(this); - QFont font = m_nameLabel->font(); - font.setBold(true); - m_nameLabel->setFont(font); - m_nameLabel->setAlignment(Qt::AlignHCenter); - m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); - - // preview - m_preview = new PixmapViewer(this); - m_preview->setMinimumWidth(KIconLoader::SizeEnormous + KIconLoader::SizeMedium); - m_preview->setMinimumHeight(KIconLoader::SizeEnormous); - - if (MetaDataWidget::metaDataAvailable()) { - // rating, comment and tags - m_metaDataWidget = new MetaDataWidget(this); - m_metaDataWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); - } + m_urlChangedTimer = new QTimer(this); + m_urlChangedTimer->setInterval(defaultDelay); + m_urlChangedTimer->setSingleShot(true); + connect(m_urlChangedTimer, SIGNAL(timeout()), + this, SLOT(showItemInfo())); - // general meta text information - m_metaTextLabel = new MetaTextLabel(this); - m_metaTextLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); - - m_metaTextArea = new QScrollArea(this); - m_metaTextArea->setWidget(m_metaTextLabel); - m_metaTextArea->setWidgetResizable(true); - m_metaTextArea->setFrameShape(QFrame::NoFrame); - - QWidget* viewport = m_metaTextArea->viewport(); - viewport->installEventFilter(this); - - QPalette palette = viewport->palette(); - palette.setColor(viewport->backgroundRole(), QColor(Qt::transparent)); - viewport->setPalette(palette); - - layout->addWidget(m_nameLabel); - layout->addWidget(new KSeparator(this)); - layout->addWidget(m_preview); - layout->addWidget(new KSeparator(this)); - if (m_metaDataWidget != 0) { - layout->addWidget(m_metaDataWidget); - layout->addWidget(new KSeparator(this)); - } - layout->addWidget(m_metaTextArea); - setLayout(layout); + m_resetUrlTimer = new QTimer(this); + m_resetUrlTimer->setInterval(defaultDelay * 3); + m_resetUrlTimer->setSingleShot(true); + connect(m_resetUrlTimer, SIGNAL(timeout()), + this, SLOT(reset())); org::kde::KDirNotify* dirNotify = new org::kde::KDirNotify(QString(), QString(), QDBusConnection::sessionBus(), this); @@ -588,6 +312,8 @@ void InformationPanel::init() connect(dirNotify, SIGNAL(enteredDirectory(QString)), SLOT(slotEnteredDirectory(QString))); connect(dirNotify, SIGNAL(leftDirectory(QString)), SLOT(slotLeftDirectory(QString))); + m_content = new InformationPanelContent(this); + m_initialized = true; }