Don't recreate and destroy the tooltip widget on each show/hide operation, just use set the widget visible/invisible and update the content instead

svn path=/trunk/KDE/kdebase/apps/; revision=1107992

1 files changed, 70 insertions, 0 deletions

diff --git a/src/tooltips/filemetadatatooltip.h b/src/tooltips/filemetadatatooltip.h
new file mode 100644
index 000000000..d5356cd23
--- /dev/null
+++ b/src/tooltips/filemetadatatooltip.h
@@ -0,0 +1,70 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Peter Penz <[email protected]>                  *
+ *   Copyright (C) 2008 by Fredrik Höglund <[email protected]>               *
+ *                                                                         *
+ *   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  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program 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 General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#ifndef DOLPHINCONTROLLER_H
+#define DOLPHINCONTROLLER_H
+
+#include <QWidget>
+
+class KFileItemList;
+class KFileMetaDataWidget;
+class QLabel;
+
+/**
+ * @brief Tooltip, that shows the meta information and a preview of one
+ *        or more files.
+ */
+class FileMetaDataToolTip : public QWidget
+{
+    Q_OBJECT
+
+public:
+    FileMetaDataToolTip(QWidget* parent = 0);
+    virtual ~FileMetaDataToolTip();
+
+    void setPreview(const QPixmap& pixmap);
+    const QPixmap* preview() const;
+
+    void setName(const QString& name);
+    QString name() const;
+
+    void setItems(const KFileItemList& items);
+    KFileItemList items() const;
+
+protected:
+    virtual void paintEvent(QPaintEvent* event);
+
+private:
+    /**
+     * Helper method for FileMetaDataToolTip::paintEvent() to adjust the painter path \p path
+     * by rounded corners.
+     */
+    static void arc(QPainterPath& path,
+                    qreal cx, qreal cy,
+                    qreal radius, qreal angle,
+                    qreal sweepLength);
+
+private:
+    QLabel* m_preview;
+    QLabel* m_name;
+    KFileMetaDataWidget* m_fileMetaDataWidget;
+};
+
+#endif