protected override void OnMouseMove(MouseEventArgs e)
{
var mouse = MouseZoom(e.Location);
if (draggedShape != null)
{
DragShape(e);
if (!dragStarted && shapeInitialLocation != draggedShape.Location)
{
foreach (var conn in Connector.GetConnections(draggedShape.Task))
{
conn.UnRoute();
}
dragStarted = true;
Invalidate();
}
}
else if (rubberBand != null)
{
rubberBand.MouseMove(mouse);
}
else if (draggedSegment != null)
{
if (!dragStarted)
{
if (draggedSegment.PrepareDrag(segmentGrabPoint))
{
dragStarted = true;
}
else
{
draggedSegment = null;
return;
}
}
Invalidate(draggedSegment.DragTo(mouse));
}
else if (panning)
{
Cursor = Cursors.SizeAll; // TODO: Get the correct Grabby Hand cursor
// If the diagram has shrunk then permit scrolling to the new extended limits
// (minLeft, minTop are the normal scroll limits for a diagram that has not just been shrunk)
var llimit = Math.Min(Left, minLeft);
var tlimit = Math.Min(Top, minTop);
// Scroll the diagram
var left = Math.Min(0, Math.Max(llimit, Left + e.X - panClick.X));
var top = Math.Min(0, Math.Max(tlimit, Top + e.Y - panClick.Y));
Location = new Point(left, top);
}
else if (selectionFrame != null)
{
selectionFrame.UpdateFrame(PointToScreen(e.Location));
}
else
{
var obj = view.HitTest(mouse);
if (!ReadOnly && obj != null)
{
Cursor.Current = obj.GetCursor;
}
}
}
