Implement grouping for names

- Use a custom header for KFileItems
- Cache the groups
- Allow enabling/disabling grouping dynamically

Currently there is a random crash in combination with the
groupheader-recycler, this will be fixed during the next
days.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/kitemviews/kfileitemlistgroupheader.cpp b/src/kitemviews/kfileitemlistgroupheader.cpp
new file mode 100644
index 000000000..969bd925b
--- /dev/null
+++ b/src/kitemviews/kfileitemlistgroupheader.cpp
@@ -0,0 +1,43 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Peter Penz <[email protected]>             *
+ *                                                                         *
+ *   Based on the Itemviews NG project from Trolltech Labs:                *
+ *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
+ *                                                                         *
+ *   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            *
+ ***************************************************************************/
+
+#include "kfileitemlistgroupheader.h"
+
+#include <QPainter>
+
+KFileItemListGroupHeader::KFileItemListGroupHeader(QGraphicsWidget* parent) :
+    KItemListGroupHeader(parent)
+{
+}
+
+KFileItemListGroupHeader::~KFileItemListGroupHeader()
+{
+}
+
+void KFileItemListGroupHeader::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+    KItemListGroupHeader::paint(painter, option, widget);
+    // TODO: Use dataChanged() hook to prepare a cached property
+    painter->drawText(QRectF(0, 0, size().width(), size().height()), data().toString());
+}
+
+#include "kfileitemlistgroupheader.moc"