void JLocator::OnDrag( JDragEvent& e )
{
if (e.GetType() == deDragStart)
{
e.SetDragObject( this );
e.Consume();
}
else if (e.GetType() == deDrag && e.GetDragObject() == this)
{
m_Pos.x = e.GetCurPos().x;
m_Pos.y = e.GetCurPos().y;
e.Consume();
}
} // JLocator::OnDrag
void JObjectTree::OnDrag( JDragEvent& e )
{
Vec2 mPos = e.GetCurPos();
if (e.Key() == mkMiddle)
{
if (e.GetType() == deDragStart && IsDraggable())
{
if (PickNode( mPos.x, mPos.y ) != NULL)
{
e.SetDragObject( this );
SetDragged();
}
}
if (e.GetType() == deDrag && e.GetDragObject() == this)
{
m_RootPos += e.GetDelta();
}
}
else if (e.Key() == mkRight)
{
if (e.GetType() == deDragStart)
{
Frame ext;
JObject* pNode = PickNode( mPos.x, mPos.y, &ext );
if (pNode)
{
e.SetSource( this );
m_pDraggedNode = pNode;
m_DragShift = Vec2( mPos.x - ext.x, mPos.y - ext.y );
m_bClone = (GetKeyState( VK_CONTROL ) < 0);
}
e.Consume();
}
if (e.GetType() == deDrag && e.GetSource() == this)
{
// check whether node can be dropped onto hovered one
Frame ext;
JObject* pNode = PickNode( e.GetCurPos().x, e.GetCurPos().y, &ext );
bool bAsChild = (mPos.x > ext.center().x);
m_bCanDrop = CanDropNode( m_pDraggedNode, pNode, bAsChild, m_bClone );
if (m_bCanDrop)
{
if (bAsChild)
{
ext.x += ext.w - 10;
ext.w = 10;
m_InsExt = ext;
}
else
{
ext.y += ext.h;
ext.w -= 10;
ext.h = 4;
m_InsExt = ext;
}
}
e.Consume();
}
if (e.GetType() == deDrop && e.GetSource() == this && m_pDraggedNode)
{
// find node we are going to drop onto
Frame ext;
JObject* pNode = PickNode( e.GetCurPos().x, e.GetCurPos().y, &ext );
bool bAsChild = (mPos.x > ext.center().x);
if (CanDropNode( m_pDraggedNode, pNode, bAsChild, m_bClone ))
{
DropNode( m_pDraggedNode, pNode, bAsChild, m_bClone );
}
m_pDraggedNode = NULL;
e.Consume();
}
}
} // JObjectTree::OnDrag