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[dolphin.git] / src / infosidebarpage.cpp
index ae692fc42f0d2bab11d582d1e8453b76ed5b02a4..e258068ae847c96fe2b70d8756423199fcb94be5 100644 (file)
 #include <kdialog.h>
 #include <kglobalsettings.h>
 #include <kfilemetainfo.h>
-#include <kvbox.h>
+#include <kiconeffect.h>
 #include <kseparator.h>
 #include <kiconloader.h>
 
 #include <QEvent>
 #include <QInputDialog>
 #include <QLabel>
+#include <QPainter>
 #include <QPixmap>
 #include <QResizeEvent>
+#include <QStyleOptionMenuItem>
 #include <QTimer>
 #include <QVBoxLayout>
 
 #include "dolphinsettings.h"
 #include "metadatawidget.h"
+#include "metatextlabel.h"
 #include "pixmapviewer.h"
 
+class InfoSeparator : public QWidget
+{
+public:
+    InfoSeparator(QWidget* parent);
+    virtual ~InfoSeparator();
+
+protected:
+    virtual void paintEvent(QPaintEvent* event);
+};
+
+InfoSeparator::InfoSeparator(QWidget* parent) :
+    QWidget(parent)
+{
+    setMinimumSize(0, 8);
+}
+
+InfoSeparator::~InfoSeparator()
+{
+}
+
+void InfoSeparator::paintEvent(QPaintEvent* event)
+{
+    Q_UNUSED(event);
+    QPainter painter(this);
+
+    QStyleOptionMenuItem option;
+    option.initFrom(this);
+    option.menuItemType = QStyleOptionMenuItem::Separator;
+    style()->drawControl(QStyle::CE_MenuItem, &option, &painter, this);
+}
+
 InfoSidebarPage::InfoSidebarPage(QWidget* parent) :
     SidebarPage(parent),
     m_pendingPreview(false),
-    m_timer(0),
-    m_preview(0),
+    m_shownUrl(),
+    m_urlCandidate(),
+    m_fileItem(),
     m_nameLabel(0),
-    m_infoLabel(0),
-    m_metadataWidget(0)
+    m_preview(0),
+    m_metaDataWidget(0),
+    m_metaTextLabel(0)
 {
     const int spacing = KDialog::spacingHint();
 
@@ -64,35 +100,38 @@ InfoSidebarPage::InfoSidebarPage(QWidget* parent) :
     QVBoxLayout* layout = new QVBoxLayout;
     layout->setSpacing(spacing);
 
-    // preview
-    m_preview = new PixmapViewer(this);
-    m_preview->setMinimumWidth(K3Icon::SizeEnormous);
-    m_preview->setFixedHeight(K3Icon::SizeEnormous);
-
     // name
     m_nameLabel = new QLabel(this);
-    m_nameLabel->setTextFormat(Qt::RichText);
-    m_nameLabel->setAlignment(m_nameLabel->alignment() | Qt::AlignHCenter);
+    QFont font = m_nameLabel->font();
+    font.setBold(true);
+    m_nameLabel->setFont(font);
+    m_nameLabel->setAlignment(Qt::AlignHCenter);
     m_nameLabel->setWordWrap(true);
 
-    // general information
-    m_infoLabel = new QLabel(this);
-    m_infoLabel->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
-    m_infoLabel->setTextFormat(Qt::RichText);
+    // preview
+    m_preview = new PixmapViewer(this);
+    m_preview->setMinimumWidth(KIconLoader::SizeEnormous + KIconLoader::SizeMedium);
+    m_preview->setMinimumHeight(KIconLoader::SizeEnormous);
 
     if (MetaDataWidget::metaDataAvailable()) {
-        m_metadataWidget = new MetaDataWidget(this);
+        // rating, comment and tags
+        m_metaDataWidget = new MetaDataWidget(this);
     }
 
-    layout->addItem(new QSpacerItem(spacing, spacing, QSizePolicy::Preferred, QSizePolicy::Fixed));
-    layout->addWidget(m_preview);
+    // general meta text information
+    m_metaTextLabel = new MetaTextLabel(this);
+    m_metaTextLabel->setMinimumWidth(spacing);
+
     layout->addWidget(m_nameLabel);
-    layout->addWidget(new KSeparator(this));
-    layout->addWidget(m_infoLabel);
-    layout->addWidget(new KSeparator(this));
-    if (m_metadataWidget) {
-        layout->addWidget(m_metadataWidget);
+    layout->addWidget(new InfoSeparator(this));
+    layout->addWidget(m_preview);
+    layout->addWidget(new InfoSeparator(this));
+    if (m_metaDataWidget != 0) {
+        layout->addWidget(m_metaDataWidget);
+        layout->addWidget(new InfoSeparator(this));
     }
+    layout->addWidget(m_metaTextLabel);
+
     // ensure that widgets in the information side bar are aligned towards the top
     layout->addStretch(1);
     setLayout(layout);
@@ -111,6 +150,7 @@ QSize InfoSidebarPage::sizeHint() const
 
 void InfoSidebarPage::setUrl(const KUrl& url)
 {
+    SidebarPage::setUrl(url);
     if (url.isValid() && !m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
         cancelRequest();
         m_shownUrl = url;
@@ -118,32 +158,46 @@ void InfoSidebarPage::setUrl(const KUrl& url)
     }
 }
 
-void InfoSidebarPage::setSelection(const QList<KFileItem>& selection)
+void InfoSidebarPage::setSelection(const KFileItemList& selection)
 {
     SidebarPage::setSelection(selection);
-    m_timer->start(TimerDelay);
+
+    const int count = selection.count();
+    if (count == 0) {
+        m_shownUrl = url();
+        showItemInfo();
+    } else {
+        if ((count == 1) && !selection.first().url().isEmpty()) {
+            m_urlCandidate = selection.first().url();
+        }
+        m_timer->start(TimerDelay);
+    }
 }
 
 void InfoSidebarPage::requestDelayedItemInfo(const KFileItem& item)
 {
     cancelRequest();
 
-    if (!item.isNull() && (selection().size() <= 1)) {
-        const KUrl url = item.url();
-        if (!url.isEmpty()) {
-            m_urlCandidate = url;
+    m_fileItem = KFileItem();
+    if (item.isNull()) {
+        // The cursor is above the viewport. If files are selected,
+        // show information regarding the selection.
+        if (selection().size() > 0) {
             m_timer->start(TimerDelay);
         }
+    } else if (!item.url().isEmpty()) {
+        m_urlCandidate = item.url();
+        m_fileItem = item;
+        m_timer->start(TimerDelay);
     }
 }
 
 void InfoSidebarPage::showEvent(QShowEvent* event)
 {
     SidebarPage::showEvent(event);
-    if (event->spontaneous()) {
-        return;
+    if (!event->spontaneous()) {
+        showItemInfo();
     }
-    showItemInfo();
 }
 
 void InfoSidebarPage::resizeEvent(QResizeEvent* event)
@@ -155,7 +209,12 @@ void InfoSidebarPage::resizeEvent(QResizeEvent* event)
     // the current width of the sidebar.
     const int maxWidth = event->size().width() - KDialog::spacingHint() * 4;
     m_nameLabel->setMaximumWidth(maxWidth);
-    m_infoLabel->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_timer->start(TimerDelay);
+
     SidebarPage::resizeEvent(event);
 }
 
@@ -167,36 +226,34 @@ void InfoSidebarPage::showItemInfo()
 
     cancelRequest();
 
-    const QList<KFileItem>& selectedItems = selection();
-
-    KUrl file;
-    if (selectedItems.isEmpty()) {
-        file = m_shownUrl;
-    } else {
-        file = selectedItems[0].url();
-    }
+    const KFileItemList& selectedItems = selection();
+    const KUrl file = (!m_fileItem.isNull() || selectedItems.isEmpty()) ? m_shownUrl : selectedItems[0].url();
     if (!file.isValid()) {
         return;
     }
-    const int itemCount = selectedItems.count();
-    if (itemCount > 1) {
+
+    const int selectionCount = selectedItems.count();
+    if (m_fileItem.isNull() && (selectionCount > 1)) {
         KIconLoader iconLoader;
-        QPixmap icon = iconLoader.loadIcon("exec",
-                                           K3Icon::NoGroup,
-                                           K3Icon::SizeEnormous);
+        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", selectedItems.count()));
+        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;
-        m_preview->setPixmap(QPixmap());
+
+        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(),
-                                                K3Icon::SizeEnormous,
+                                                m_preview->height(),
                                                 0,
                                                 0,
                                                 true,
@@ -208,10 +265,7 @@ void InfoSidebarPage::showItemInfo()
         connect(job, SIGNAL(failed(const KFileItem&)),
                 this, SLOT(showIcon(const KFileItem&)));
 
-        QString text("<b>");
-        text.append(file.fileName());
-        text.append("</b>");
-        m_nameLabel->setText(text);
+        m_nameLabel->setText(file.fileName());
     }
 
     showMetaInfo();
@@ -227,7 +281,7 @@ void InfoSidebarPage::showIcon(const KFileItem& item)
 {
     m_pendingPreview = false;
     if (!applyPlace(item.url())) {
-        m_preview->setPixmap(item.pixmap(K3Icon::SizeEnormous));
+        m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous));
     }
 }
 
@@ -250,11 +304,7 @@ bool InfoSidebarPage::applyPlace(const KUrl& url)
         QModelIndex index = placesModel->index(i, 0);
 
         if (url.equals(placesModel->url(index), KUrl::CompareWithoutTrailingSlash)) {
-            QString text("<b>");
-            text.append(placesModel->text(index));
-            text.append("</b>");
-            m_nameLabel->setText(text);
-
+            m_nameLabel->setText(placesModel->text(index));
             m_preview->setPixmap(placesModel->icon(index).pixmap(128, 128));
             return true;
         }
@@ -266,77 +316,79 @@ bool InfoSidebarPage::applyPlace(const KUrl& url)
 void InfoSidebarPage::cancelRequest()
 {
     m_timer->stop();
-    m_pendingPreview = false;
 }
 
 void InfoSidebarPage::showMetaInfo()
 {
-    QString text;
-
-    const QList<KFileItem>& selectedItems = selection();
-    if (selectedItems.size() <= 1) {
-        KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
-        fileItem.refresh();
+    m_metaTextLabel->clear();
+
+    const KFileItemList& selectedItems = selection();
+    if ((selectedItems.size() <= 1) || !m_fileItem.isNull()) {
+        KFileItem fileItem;
+        if (m_fileItem.isNull()) {
+            // no pending request is ongoing
+            const KUrl url = (selectedItems.size() == 1) ? selectedItems.first().url() : m_shownUrl;
+            fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, url);
+            fileItem.refresh();
+        } else {
+            fileItem = m_fileItem;
+        }
 
         if (fileItem.isDir()) {
-            addInfoLine(text, i18nc("@label", "Type:"), i18nc("@label", "Folder"));
+            m_metaTextLabel->add(i18nc("@label", "Type:"), i18nc("@label", "Folder"));
+            m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString());
         } else {
-            addInfoLine(text, i18nc("@label", "Type:"), fileItem.mimeComment());
+            m_metaTextLabel->add(i18nc("@label", "Type:"), fileItem.mimeComment());
 
-            QString sizeText(KIO::convertSize(fileItem.size()));
-            addInfoLine(text, i18nc("@label", "Size:"), sizeText);
-            addInfoLine(text, i18nc("@label", "Modified:"), fileItem.timeString());
+            m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(fileItem.size()));
+            m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString());
 
             // TODO: See convertMetaInfo below, find a way to display only interesting information
             // in a readable way
-            const KFileMetaInfo metaInfo(fileItem.url());
-            if (metaInfo.isValid()) {
-                const QHash<QString, KFileMetaInfoItem>& items = metaInfo.items();
+            const KFileMetaInfo::WhatFlags flags = KFileMetaInfo::Fastest |
+                                                   KFileMetaInfo::TechnicalInfo |
+                                                   KFileMetaInfo::ContentInfo |
+                                                   KFileMetaInfo::Thumbnail;
+            const QString path = fileItem.url().url();
+            const KFileMetaInfo fileMetaInfo(path, QString(), flags);
+            if (fileMetaInfo.isValid()) {
+                const QHash<QString, KFileMetaInfoItem>& items = fileMetaInfo.items();
                 QHash<QString, KFileMetaInfoItem>::const_iterator it = items.constBegin();
                 const QHash<QString, KFileMetaInfoItem>::const_iterator end = items.constEnd();
                 QString labelText;
                 while (it != end) {
-                    const KFileMetaInfoItem& metaInfo = it.value();
-                    const QVariant& value = metaInfo.value();
-                    if (value.isValid() && convertMetaInfo(metaInfo.name(), labelText)) {
-                        addInfoLine(text, labelText, value.toString());
+                    const KFileMetaInfoItem& metaInfoItem = it.value();
+                    const QVariant& value = metaInfoItem.value();
+                    if (value.isValid() && convertMetaInfo(metaInfoItem.name(), labelText)) {
+                        m_metaTextLabel->add(labelText, value.toString());
                     }
                     ++it;
                 }
             }
         }
 
-        if (MetaDataWidget::metaDataAvailable()) {
-            m_metadataWidget->setFile(fileItem.url());
+        if (m_metaDataWidget != 0) {
+            m_metaDataWidget->setFile(fileItem.targetUrl());
         }
     } else {
-        if (MetaDataWidget::metaDataAvailable()) {
+        if (m_metaDataWidget != 0) {
             KUrl::List urls;
             foreach (const KFileItem& item, selectedItems) {
-                urls.append(item.url());
+                urls.append(item.targetUrl());
             }
-            m_metadataWidget->setFiles(urls);
+            m_metaDataWidget->setFiles(urls);
         }
 
         unsigned long int totalSize = 0;
         foreach (const KFileItem& item, selectedItems) {
-            // TODO: what to do with directories (same with the one-item-selected-code)?,
-            // item.size() does not return the size of the content : not very instinctive for users
-            totalSize += item.size();
+            // Only count the size of files, not dirs to match what
+            // DolphinViewContainer::selectionStatusBarText() does.
+            if (!item.isDir() && !item.isLink()) {
+                totalSize += item.size();
+            }
         }
-        addInfoLine(text, i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
-    }
-    m_infoLabel->setText(text);
-}
-
-void InfoSidebarPage::addInfoLine(QString& text,
-                                  const QString& labelText,
-                                  const QString& infoText)
-{
-    if (!text.isEmpty()) {
-        text += "<br/>";
+        m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
     }
-    text += QString("<b>%1</b> %2").arg(labelText).arg(infoText);
 }
 
 bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const