After some discussions at http://reviewboard.kde.org/r/1938 it turned out that moving KMetaDataWidget and KMetaDataConfigurationDialog to kdelibs should be postponed to KDE 4.5. The main reason is that adding application specific properties is not possible with the current API in a generic way. Also the topic how to hide properties application specific is an open point...

So now all adjustments from the review have been adapted to the Dolphin code. After KDE 4.4 has been released some refactoring will be done so that the open topics above are handled in a nice way.

svn path=/trunk/KDE/kdebase/apps/; revision=1041547

1 files changed, 129 insertions, 0 deletions

diff --git a/src/panels/information/kmetadatawidget.h b/src/panels/information/kmetadatawidget.h
new file mode 100644
index 000000000..fbcf79f40
--- /dev/null
+++ b/src/panels/information/kmetadatawidget.h
@@ -0,0 +1,129 @@
+/*****************************************************************************
+ * Copyright (C) 2008 by Sebastian Trueg <[email protected]>                     *
+ * Copyright (C) 2009 by Peter Penz <[email protected]>                      *
+ *                                                                           *
+ * This library is free software; you can redistribute it and/or             *
+ * modify it under the terms of the GNU Library General Public               *
+ * License version 2 as published by the Free Software Foundation.           *
+ *                                                                           *
+ * This library is distributed in the hope that it will be useful,           *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
+ * Library General Public License for more details.                          *
+ *                                                                           *
+ * You should have received a copy of the GNU Library General Public License *
+ * along with this library; see the file COPYING.LIB.  If not, write to      *
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,      *
+ * Boston, MA 02110-1301, USA.                                               *
+ *****************************************************************************/
+
+#ifndef KMETADATAWIDGET_H
+#define KMETADATAWIDGET_H
+
+#include <kfile_export.h>
+#include <kfileitem.h>
+
+#include <QList>
+#include <QWidget>
+
+class KUrl;
+
+/**
+ * @brief Shows the meta data of one or more file items.
+ *
+ * Meta data like name, size, rating, comment, ... are
+ * shown as several rows containing a description and
+ * the meta data value. It is possible for the user
+ * to change specific meta data like rating, tags and
+ * comment. The changes are stored automatically by the
+ * meta data widget.
+ */
+class KFILE_EXPORT KMetaDataWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    /**
+     * Allows to specify which general data types should be shown
+     * by the meta data widget.
+     * @see KMetaDataWidget::setVisibleDataTypes()
+     * @see KMetaDataWidget::visibleDataTypes()
+     */
+    enum MetaDataType
+    {
+        None = 0,
+        TypeData = 1,
+        SizeData = 2,
+        ModifiedData = 4,
+        OwnerData =  8,
+        PermissionsData = 16,
+        RatingData = 32,
+        TagsData = 64,
+        CommentData = 128
+    };
+    Q_DECLARE_FLAGS(MetaDataTypes, MetaDataType)
+
+    explicit KMetaDataWidget(QWidget* parent = 0);
+    virtual ~KMetaDataWidget();
+
+    /**
+     * Triggers the asynchronous loading of the meta data
+     * for the file item \p item. Connect to the signal
+     * loadingFinished() to be able to read the meta
+     * data.
+     */
+    void setItem(const KFileItem& item);
+
+    /**
+     * Triggers the asynchronous loading of the meta data
+     * for the file items \p items. Connect to the signal
+     * loadingFinished() to be able to read the meta
+     * data.
+     */
+    void setItems(const KFileItemList& items);
+
+    /**
+     * Convenience method for KMetaDataWidget::setItem(const KFileItem&),
+     * if the application has only an URL and no file item.
+     * For performance reason it is recommended to use this convenience
+     * method only if the application does not have a file item already.
+     */
+    void setItem(const KUrl& url);
+
+    /**
+     * Convenience method for KMetaDataWidget::setItems(const KFileItemList&),
+     * if the application has only URLs and no file items.
+     * For performance reason it is recommended to use this convenience
+     * method only if the application does not have a file items already.
+     */
+    void setItems(const QList<KUrl>& urls);
+
+    KFileItemList items() const;
+
+    /**
+     * Specifies which kind of data types should be shown (@see KMetaDataWidget::Data).
+     * Example: metaDataWidget->setVisibleDataTypes(KMetaDataWidget::TypeData | KMetaDataWidget::ModifiedData);
+     * Per default all data types are shown.
+     */
+    void setVisibleDataTypes(MetaDataTypes data);
+
+    /**
+     * Returns which kind of data is shown (@see KMetaDataWidget::Data).
+     * Example: if (metaDataWidget->shownData() & KMetaDataWidget::TypeData) ...
+     */
+    MetaDataTypes visibleDataTypes() const;
+
+private:
+    class Private;
+    Private* d;
+
+    Q_PRIVATE_SLOT(d, void slotLoadingFinished())
+    Q_PRIVATE_SLOT(d, void slotRatingChanged(unsigned int rating))
+    Q_PRIVATE_SLOT(d, void slotTagsChanged(const QList<Nepomuk::Tag>& tags))
+    Q_PRIVATE_SLOT(d, void slotCommentChanged(const QString& comment))
+    Q_PRIVATE_SLOT(d, void slotMetaDataUpdateDone())
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(KMetaDataWidget::MetaDataTypes)
+
+#endif