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notepad-plus-plus
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[ENHANCE] Enhancement for drag and drop feature in Project Manager. 

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@848 f5eea248-9336-0410-98b8-ebc06183d4e3
This commit is contained in:
Don Ho 2011-12-17 18:19:42 +00:00
parent 0598f46e9f
commit ab2836f716
2 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp
View File

@ -240,6 +240,8 @@ bool TreeView::canBeDropped(HTREEITEM draggedItem, HTREEITEM targetItem)
return false; return false;
if (isDescendant(targetItem, draggedItem)) if (isDescendant(targetItem, draggedItem))
return false; return false;
if (isParent(targetItem, draggedItem))
return false;
// candragItem, canBeDropInItems // candragItem, canBeDropInItems
if (!canDropIn(targetItem)) if (!canDropIn(targetItem))
return false; return false;
@ -259,22 +261,34 @@ bool TreeView::isDescendant(HTREEITEM targetItem, HTREEITEM draggedItem)
return isDescendant(parent, draggedItem); return isDescendant(parent, draggedItem);
} }
bool TreeView::isParent(HTREEITEM targetItem, HTREEITEM draggedItem)
{
HTREEITEM parent = TreeView_GetParent(_hSelf, draggedItem);
if (parent == targetItem)
return true;
return false;
}
void TreeView::moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem) void TreeView::moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem)
{ {
TCHAR textBuffer[MAX_PATH]; TCHAR textBuffer[MAX_PATH];
TVITEM tvItem; TVITEM tvDraggingItem;
tvItem.mask = TVIF_TEXT | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE; tvDraggingItem.mask = TVIF_TEXT | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE;
tvItem.pszText = textBuffer; tvDraggingItem.pszText = textBuffer;
tvItem.cchTextMax = MAX_PATH; tvDraggingItem.cchTextMax = MAX_PATH;
tvItem.hItem = draggedItem; tvDraggingItem.hItem = draggedItem;
SendMessage(_hSelf, TVM_GETITEM, 0,(LPARAM)&tvItem); SendMessage(_hSelf, TVM_GETITEM, 0,(LPARAM)&tvDraggingItem);
if (tvDraggingItem.lParam)
tvDraggingItem.lParam = (LPARAM)(new generic_string(*((generic_string *)(tvDraggingItem.lParam))));
TVINSERTSTRUCT tvInsertStruct; TVINSERTSTRUCT tvInsertStruct;
tvInsertStruct.item = tvItem; tvInsertStruct.item = tvDraggingItem;
tvInsertStruct.hInsertAfter = (HTREEITEM)TVI_LAST; tvInsertStruct.hInsertAfter = (HTREEITEM)TVI_LAST;
tvInsertStruct.hParent = targetItem; tvInsertStruct.hParent = targetItem;
::SendMessage(_hSelf, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvInsertStruct); ::SendMessage(_hSelf, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvInsertStruct);
removeItem(draggedItem);
} }
bool TreeView::canDropIn(HTREEITEM targetItem) bool TreeView::canDropIn(HTREEITEM targetItem)
@ -292,6 +306,7 @@ bool TreeView::canDropIn(HTREEITEM targetItem)
return true; return true;
} }
bool TreeView::canDragOut(HTREEITEM targetItem) bool TreeView::canDragOut(HTREEITEM targetItem)
{ {
TVITEM tvItem; TVITEM tvItem;

1
PowerEditor/src/WinControls/ProjectPanel/TreeView.h
View File

@ -83,6 +83,7 @@ protected:
std::vector<int> _canNotDropInList; std::vector<int> _canNotDropInList;
bool canBeDropped(HTREEITEM draggedItem, HTREEITEM targetItem); bool canBeDropped(HTREEITEM draggedItem, HTREEITEM targetItem);
void moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem); void moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem);
bool isParent(HTREEITEM targetItem, HTREEITEM draggedItem);
bool isDescendant(HTREEITEM targetItem, HTREEITEM draggedItem); bool isDescendant(HTREEITEM targetItem, HTREEITEM draggedItem);
bool canDragOut(HTREEITEM targetItem); bool canDragOut(HTREEITEM targetItem);
bool canDropIn(HTREEITEM targetItem); bool canDropIn(HTREEITEM targetItem);