adding node position tracking for undo

1 files changed, 12 insertions, 2 deletions

diff --git a/tikzit/src/gui/nodeitem.cpp b/tikzit/src/gui/nodeitem.cpp
index bf4830b..40b4de9 100644
--- a/tikzit/src/gui/nodeitem.cpp
+++ b/tikzit/src/gui/nodeitem.cpp
@@ -17,14 +17,19 @@ NodeItem::NodeItem(Node *node)
     setFlag(QGraphicsItem::ItemIsSelectable);
     setFlag(QGraphicsItem::ItemIsMovable);
     setFlag(QGraphicsItem::ItemSendsGeometryChanges);
-    syncPos();
+    readPos();
 }
 
-void NodeItem::syncPos()
+void NodeItem::readPos()
 {
     setPos(toScreen(_node->point()));
 }
 
+void NodeItem::writePos()
+{
+    _node->setPoint(fromScreen(pos()));
+}
+
 QRectF NodeItem::labelRect() const {
     QString label = _node->label();
     //QFont f("Courier", 9);
@@ -99,6 +104,11 @@ QRectF NodeItem::boundingRect() const
     return r.united(shape().boundingRect()).adjusted(-4,-4,4,4);
 }
 
+Node *NodeItem::node() const
+{
+    return _node;
+}
+
 QVariant NodeItem::itemChange(GraphicsItemChange change, const QVariant &value)
 {
     if (change == ItemPositionChange) {