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[dolphin.git] / src / panels / information / informationpanelcontent.cpp
index bd24e568d27ba47b8ec98669337a4e35ec7c56fe..04e13060d23501afd2675a49a3743469256ca093 100644 (file)
 
 #include "informationpanelcontent.h"
 
-#include <kdialog.h>
-#include <kfileitem.h>
-#include <kfileplacesmodel.h>
-#include <kio/previewjob.h>
-#include <kiconeffect.h>
-#include <kiconloader.h>
-#include <klocale.h>
-#include <kmenu.h>
+#include <KDialog>
+#include <KFileItem>
+#include <kfilemetadatawidget.h>
+#include <KFilePlacesModel>
+#include <KGlobalSettings>
+#include <KIO/PreviewJob>
+#include <KIconEffect>
+#include <KIconLoader>
+#include <KLocale>
+#include <KMenu>
 #include <kseparator.h>
+#include <KStringHandler>
 
 #include <Phonon/BackendCapabilities>
 #include <Phonon/MediaObject>
 #include <QPointer>
 #include <QResizeEvent>
 #include <QScrollArea>
+#include <QTextDocument>
 #include <QTextLayout>
 #include <QTextLine>
 #include <QTimer>
 #include <QVBoxLayout>
 
 #include "dolphin_informationpanelsettings.h"
+#include "filemetadataconfigurationdialog.h"
 #include "settings/dolphinsettings.h"
-#include "kmetadatawidget.h"
-#include "kmetadataconfigurationdialog.h"
 #include "phononwidget.h"
 #include "pixmapviewer.h"
 
 InformationPanelContent::InformationPanelContent(QWidget* parent) :
-    Panel(parent),
+    QWidget(parent),
     m_item(),
     m_pendingPreview(false),
     m_outdatedPreviewTimer(0),
@@ -60,7 +63,8 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     m_phononWidget(0),
     m_nameLabel(0),
     m_metaDataWidget(0),
-    m_metaDataArea(0)
+    m_metaDataArea(0),
+    m_enabledPlugins()
 {
     parent->installEventFilter(this);
 
@@ -73,7 +77,7 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     connect(m_outdatedPreviewTimer, SIGNAL(timeout()),
             this, SLOT(markOutdatedPreview()));
 
-    QVBoxLayout* layout = new QVBoxLayout;
+    QVBoxLayout* layout = new QVBoxLayout(this);
     layout->setSpacing(KDialog::spacingHint());
 
     // preview
@@ -84,6 +88,7 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     m_preview->setMinimumHeight(KIconLoader::SizeEnormous);
 
     m_phononWidget = new PhononWidget(parent);
+    m_phononWidget->hide();
     m_phononWidget->setMinimumWidth(minPreviewWidth);
     connect(m_phononWidget, SIGNAL(playingStarted()),
             this, SLOT(slotPlayingStarted()));
@@ -101,7 +106,8 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     const bool showPreview = InformationPanelSettings::showPreview();
     m_preview->setVisible(showPreview);
 
-    m_metaDataWidget = new KMetaDataWidget(parent);
+    m_metaDataWidget = new KFileMetaDataWidget(parent);
+    m_metaDataWidget->setFont(KGlobalSettings::smallestReadableFont());
     m_metaDataWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
     connect(m_metaDataWidget, SIGNAL(urlActivated(KUrl)), this, SIGNAL(urlActivated(KUrl)));
 
@@ -113,9 +119,7 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     containerLayout->setContentsMargins(0, 0, 0, 0);
     containerLayout->setSpacing(0);
     containerLayout->addWidget(m_metaDataWidget);
-    QWidget* stretchWidget = new QWidget(metaDataWidgetContainer);
-    stretchWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
-    containerLayout->addWidget(stretchWidget);
+    containerLayout->addStretch();
 
     m_metaDataArea = new QScrollArea(parent);
     m_metaDataArea->setWidget(metaDataWidgetContainer);
@@ -134,7 +138,6 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     layout->addWidget(m_nameLabel);
     layout->addWidget(new KSeparator());
     layout->addWidget(m_metaDataArea);
-    parent->setLayout(layout);
 }
 
 InformationPanelContent::~InformationPanelContent()
@@ -147,17 +150,17 @@ void InformationPanelContent::showItem(const KFileItem& item)
     m_pendingPreview = false;
 
     const KUrl itemUrl = item.url();
-    const bool isNepomukSearchUrl = (itemUrl.protocol() == "nepomuksearch") && item.nepomukUri().isEmpty();
+    const bool isSearchUrl = itemUrl.protocol().contains("search") && item.nepomukUri().isEmpty();
     if (!applyPlace(itemUrl)) {
-        if (isNepomukSearchUrl) {
-            // in the case of a Nepomuk query-URL the URL is not readable for humans
+        setNameLabelText(item.text());
+        if (isSearchUrl) {
+            // in the case of a search-URL the URL is not readable for humans
             // (at least not useful to show in the Information Panel)
             KIconLoader iconLoader;
             QPixmap icon = iconLoader.loadIcon("nepomuk",
                                                KIconLoader::NoGroup,
                                                KIconLoader::SizeEnormous);
             m_preview->setPixmap(icon);
-            setNameLabelText(QString());
         } else {
             // try to get a preview pixmap from the item...
             m_pendingPreview = true;
@@ -171,30 +174,27 @@ void InformationPanelContent::showItem(const KFileItem& item)
                 m_outdatedPreviewTimer->start();
             }
 
-            KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << item,
-                                                    m_preview->width(),
-                                                    m_preview->height(),
-                                                    0,
-                                                    0,
-                                                    false,
-                                                    true);
+            if (m_enabledPlugins.isEmpty()) {
+                const KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
+                m_enabledPlugins = globalConfig.readEntry("Plugins", QStringList()
+                                                                     << "directorythumbnail"
+                                                                     << "imagethumbnail"
+                                                                     << "jpegthumbnail");
+            }
+
+            KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << item, m_preview->width(), m_preview->height(),
+                                                    0, 0, false, true, &m_enabledPlugins);
 
             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());
         }
     }
 
     if (m_metaDataWidget != 0) {
-        if (isNepomukSearchUrl) {
-            m_metaDataWidget->hide();
-        } else {
-            m_metaDataWidget->show();
-            m_metaDataWidget->setItem(item);
-        }
+        m_metaDataWidget->show();
+        m_metaDataWidget->setItems(KFileItemList() << item);
     }
 
     if (InformationPanelSettings::showPreview()) {
@@ -208,7 +208,7 @@ void InformationPanelContent::showItem(const KFileItem& item)
                                       ? PhononWidget::Video
                                       : PhononWidget::Audio;
             m_phononWidget->setMode(mode);
-            m_phononWidget->setUrl(item.url());
+            m_phononWidget->setUrl(item.targetUrl());
             if ((mode == PhononWidget::Video) && m_preview->isVisible()) {
                 m_phononWidget->setVideoSize(m_preview->size());
             }
@@ -245,40 +245,31 @@ void InformationPanelContent::showItems(const KFileItemList& items)
 
 bool InformationPanelContent::eventFilter(QObject* obj, QEvent* event)
 {
-    if (event->type() == QEvent::Resize) {
+    switch (event->type()) {
+    case QEvent::Resize: {
         QResizeEvent* resizeEvent = static_cast<QResizeEvent*>(event);
         if (obj == m_metaDataArea->viewport()) {
             // The size of the meta text area has changed. Adjust the fixed
             // width in a way that no horizontal scrollbar needs to be shown.
             m_metaDataWidget->setFixedWidth(resizeEvent->size().width());
         } else if (obj == parent()) {
-            // 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 = resizeEvent->size().width() - KDialog::spacingHint() * 4;
-            m_nameLabel->setMaximumWidth(maxWidth);
-
-            // The metadata widget also contains a text widget which may return
-            // a large preferred width.
-            if (m_metaDataWidget != 0) {
-                m_metaDataWidget->setMaximumWidth(maxWidth);
-            }
+            adjustWidgetSizes(resizeEvent->size().width());
+        }
+        break;
+    }
 
-            // try to increase the preview as large as possible
-            m_preview->setSizeHint(QSize(maxWidth, maxWidth));
+    case QEvent::Polish:
+        adjustWidgetSizes(parentWidget()->width());
+        break;
 
-            if (m_phononWidget->isVisible() && (m_phononWidget->mode() == PhononWidget::Video)) {
-                // assure that the size of the video player is the same as the preview size
-                m_phononWidget->setVideoSize(QSize(maxWidth, maxWidth));
-            }
-        }
+    default:
+        break;
     }
-    return Panel::eventFilter(obj, event);
+
+    return QWidget::eventFilter(obj, event);
 }
 
-void InformationPanelContent::configureSettings()
+void InformationPanelContent::configureSettings(const QList<QAction*>& customContextMenuActions)
 {
     KMenu popup(this);
 
@@ -290,6 +281,11 @@ void InformationPanelContent::configureSettings()
     QAction* configureAction = popup.addAction(i18nc("@action:inmenu", "Configure..."));
     configureAction->setIcon(KIcon("configure"));
 
+    popup.addSeparator();
+    foreach (QAction* action, customContextMenuActions) {
+        popup.addAction(action);
+    }
+
     // Open the popup and adjust the settings for the
     // selected action.
     QAction* action = popup.exec(QCursor::pos());
@@ -302,15 +298,15 @@ void InformationPanelContent::configureSettings()
         m_preview->setVisible(isChecked);
         InformationPanelSettings::setShowPreview(isChecked);
     } else if (action == configureAction) {
-        QPointer<KMetaDataConfigurationDialog> dialog = new KMetaDataConfigurationDialog(m_metaDataWidget, this, Qt::Dialog);
+        FileMetaDataConfigurationDialog* dialog = new FileMetaDataConfigurationDialog();
         dialog->setDescription(i18nc("@label::textbox",
-                               "Configure which data should be shown in the Information Panel."));
-        dialog->exec();
-        delete dialog;
-    }
-
-    if (!m_item.isNull() && m_item.nepomukUri().isValid()) {
-        showItem(m_item);
+                                     "Select which data should be shown in the information panel:"));
+        dialog->setItems(m_metaDataWidget->items());
+        dialog->setAttribute(Qt::WA_DeleteOnClose);
+        dialog->show();
+        dialog->raise();
+        dialog->activateWindow();
+        connect(dialog, SIGNAL(destroyed()), this, SLOT(refreshMetaData()));
     }
 }
 
@@ -318,13 +314,13 @@ void InformationPanelContent::showIcon(const KFileItem& item)
 {
     m_outdatedPreviewTimer->stop();
     m_pendingPreview = false;
-    if (!applyPlace(item.url())) {
+    if (!applyPlace(item.targetUrl())) {
         m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous));
     }
 }
 
 void InformationPanelContent::showPreview(const KFileItem& item,
-                                  const QPixmap& pixmap)
+                                          const QPixmap& pixmap)
 {
     m_outdatedPreviewTimer->stop();
 
@@ -337,10 +333,10 @@ void InformationPanelContent::showPreview(const KFileItem& item,
 
 void InformationPanelContent::markOutdatedPreview()
 {
-    KIconEffect iconEffect;
-    QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(),
-                                              KIconLoader::Desktop,
-                                              KIconLoader::DisabledState);
+    KIconEffect *iconEffect = KIconLoader::global()->iconEffect();
+    QPixmap disabledPixmap = iconEffect->apply(m_preview->pixmap(),
+                                               KIconLoader::Desktop,
+                                               KIconLoader::DisabledState);
     m_preview->setPixmap(disabledPixmap);
 }
 
@@ -354,6 +350,13 @@ void InformationPanelContent::slotPlayingStopped()
     m_preview->setVisible(true);
 }
 
+void InformationPanelContent::refreshMetaData()
+{
+    if (!m_item.isNull() && m_item.nepomukUri().isValid()) {
+        showItem(m_item);
+    }
+}
+
 bool InformationPanelContent::applyPlace(const KUrl& url)
 {
     KFilePlacesModel* placesModel = DolphinSettings::instance().placesModel();
@@ -377,19 +380,21 @@ void InformationPanelContent::setNameLabelText(const QString& text)
     QTextOption textOption;
     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 
-    QTextLayout textLayout(text);
+    const QString processedText = Qt::mightBeRichText(text) ? text : KStringHandler::preProcessWrap(text);
+
+    QTextLayout textLayout(processedText);
     textLayout.setFont(m_nameLabel->font());
     textLayout.setTextOption(textOption);
 
     QString wrappedText;
-    wrappedText.reserve(text.length());
+    wrappedText.reserve(processedText.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());
+        wrappedText += processedText.mid(line.textStart(), line.textLength());
 
         line = textLayout.createLine();
         if (line.isValid()) {
@@ -401,4 +406,29 @@ void InformationPanelContent::setNameLabelText(const QString& text)
     m_nameLabel->setText(wrappedText);
 }
 
+void InformationPanelContent::adjustWidgetSizes(int width)
+{
+    // 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 = width - KDialog::spacingHint() * 4;
+    m_nameLabel->setMaximumWidth(maxWidth);
+
+    // The metadata widget also contains a text widget which may return
+    // a large preferred width.
+    if (m_metaDataWidget != 0) {
+        m_metaDataWidget->setMaximumWidth(maxWidth);
+    }
+
+    // try to increase the preview as large as possible
+    m_preview->setSizeHint(QSize(maxWidth, maxWidth));
+
+    if (m_phononWidget->isVisible() && (m_phononWidget->mode() == PhononWidget::Video)) {
+        // assure that the size of the video player is the same as the preview size
+        m_phononWidget->setVideoSize(QSize(maxWidth, maxWidth));
+    }
+}
+
 #include "informationpanelcontent.moc"