void CTreeCtrlEx::OnTvnBegindrag(NMHDR *pNMHDR, LRESULT *pResult)
{
TRACE("OnTvnBeginrdrag\n");
NM_TREEVIEW* pNMTreeView=(NM_TREEVIEW*)pNMHDR;
*pResult=0;
m_hitemDrag=pNMTreeView->itemNew.hItem;
m_hitemDrop=NULL;
// моё ограничение на драг&дроп
if(GetItemData(m_hitemDrag)<1000)
return;
m_pDragImage=CreateDragImageEx(m_hitemDrag);
if(!m_pDragImage)
return;
m_bLDragging = TRUE;
m_pDragImage->BeginDrag(0, CPoint(-15,-15));
POINT pt=pNMTreeView->ptDrag;
ClientToScreen(&pt);
m_pDragImage->DragEnter(NULL, pt);
SetCapture();
}
void CDragDropListCtrl::OnBeginDrag(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
if (pNMListView)
{
m_nPrevDropIndex = -1;
m_uPrevDropState = NULL;
// Items being dragged - can be one or more.
m_anDragIndexes.RemoveAll();
POSITION pos = GetFirstSelectedItemPosition();
while (pos)
{
m_anDragIndexes.Add(GetNextSelectedItem(pos));
}
DWORD dwStyle = GetStyle();
if ((dwStyle & LVS_SINGLESEL) == LVS_SINGLESEL)
{
// List control is single select; we need it to be multi-select so
// we can show both the drag item and potential drag target as selected.
m_dwStyle = dwStyle;
ModifyStyle(LVS_SINGLESEL, NULL);
}
if (m_anDragIndexes.GetSize() > 0)
{
// Create a drag image from the centre point of the item image.
// Clean up any existing drag image first.
delete m_pDragImage;
CPoint ptDragItem;
m_pDragImage = CreateDragImageEx(&ptDragItem);
if (m_pDragImage)
{
m_pDragImage->BeginDrag(0, ptDragItem);
m_pDragImage->DragEnter(CWnd::GetDesktopWindow(), pNMListView->ptAction);
// Capture all mouse messages in case the user drags outside the control.
SetCapture();
}
}
}
*pResult = 0;
}
void CConditionsView::OnBeginrdrag(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
*pResult = 0;
CTreeCtrl &tree = GetTreeCtrl();
CPoint ptAction;
GetCursorPos(&ptAction);
ScreenToClient(&ptAction);
m_bRDragging = TRUE;
m_bRDragCanceled = FALSE;
m_hitemDrag = pNMTreeView->itemNew.hItem;
m_hitemDrop = NULL;
m_pDragImage = CreateDragImageEx(m_hitemDrag); // get the image list for dragging
m_pDragImage->BeginDrag(0, CPoint(10,-15));
tree.SelectDropTarget(NULL); // to prevent image corruption.
m_pDragImage->DragEnter(NULL, ptAction);
SetCapture();
// get the drag condition
HTREEITEM hItem = m_hitemDrag;
//
if (hItem == tree.GetRootItem())
return;
// get the condition (if any)
while ( tree.GetParentItem( hItem ) != tree.GetRootItem() )
hItem = tree.GetParentItem( hItem );
CString condName = tree.GetItemText( hItem );
CLogic_editorDoc *pDoc = static_cast<CLogic_editorDoc *> (GetDocument());
pDoc->m_conditions.Lookup( condName, (void*&) m_pDragCondition);
}
void CSiteGroupsTree::OnBeginDrag(NMHDR *header, LRESULT *result)
{
NMTREEVIEW *info = reinterpret_cast<NMTREEVIEW *>(header);
ASSERT(m_isDragging == false);
m_draggedItem = info->itemNew.hItem;
if (m_draggedItem) {
m_droppedItem = 0;
ASSERT(m_dragImageList.get() == 0);
m_dragImageList.reset(CreateDragImageEx(m_draggedItem, IsDroppableItem(m_draggedItem) ? m_colors->droppable.color : m_colors->nondroppable.color));
if (m_dragImageList.get()) {
m_isDragging = true;
m_dragImageList->BeginDrag(0, DragHotspot);
CPoint pt(info->ptDrag);
ClientToScreen(&pt);
m_dragImageList->DragEnter(this, pt);
SetCapture();
}
}
*result = 0;
}
