From ba44b0135af54aebee08610debbc2ef118f98bf2 Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Sat, 11 Aug 2012 14:07:01 +0200
Subject: trying to add scene graph tree drag/drop, no idea what I'm doing

---
 lslayoutwindow.cpp |  4 ++++
 lsscenemodel.cpp   | 17 +++++++++++++++++
 lsscenemodel.h     |  3 +++
 3 files changed, 24 insertions(+)

diff --git a/lslayoutwindow.cpp b/lslayoutwindow.cpp
index 518d022..7360dcb 100644
--- a/lslayoutwindow.cpp
+++ b/lslayoutwindow.cpp
@@ -75,6 +75,10 @@ LSLayoutWindow::LSLayoutWindow(LYTPackageBase *pkg, const QString &layoutName, Q
 	m_widthBox->setValue(m_layout->width);
 	m_heightBox->setValue(m_layout->height);
 
+	m_sceneGraph->setSelectionMode(QAbstractItemView::ExtendedSelection);
+	m_sceneGraph->setDragEnabled(true);
+	m_sceneGraph->setAcceptDrops(true);
+	m_sceneGraph->setDropIndicatorShown(true);
 	m_sceneGraph->setModel(new LSSceneModel(m_layout, this));
 	m_sceneGraph->expandAll();
 
diff --git a/lsscenemodel.cpp b/lsscenemodel.cpp
index 7450368..a5b6a23 100644
--- a/lsscenemodel.cpp
+++ b/lsscenemodel.cpp
@@ -58,3 +58,20 @@ QVariant LSSceneModel::data(const QModelIndex &index, int role) const {
 	}
 	return QVariant();
 }
+
+
+Qt::ItemFlags LSSceneModel::flags(const QModelIndex &index) const {
+	Qt::ItemFlags flag;
+	flag = Qt::ItemIsEnabled | Qt::ItemIsSelectable |
+			Qt::ItemIsDropEnabled | Qt::ItemIsEditable;
+
+	if (index.isValid() && index.parent().isValid())
+		flag |= Qt::ItemIsDragEnabled;
+
+	return flag;
+}
+
+
+Qt::DropActions LSSceneModel::supportedDropActions() const {
+	return Qt::CopyAction | Qt::MoveAction;
+}
diff --git a/lsscenemodel.h b/lsscenemodel.h
index 3a26fc1..b53f6f6 100644
--- a/lsscenemodel.h
+++ b/lsscenemodel.h
@@ -17,6 +17,9 @@ public:
 	int columnCount(const QModelIndex &parent) const;
 	QVariant data(const QModelIndex &index, int role) const;
 
+	Qt::ItemFlags flags(const QModelIndex &index) const;
+	Qt::DropActions supportedDropActions() const;
+
 private:
 	LYTLayout *m_layout;
 	
-- 
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