Fierelier/notepad-plus-plus-legacy
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[NEW_FEATURE] Add drag and drop ability (in progress).

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git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@839 f5eea248-9336-0410-98b8-ebc06183d4e3
This commit is contained in:
Don Ho 2011-11-06 11:22:54 +00:00
parent 56a653b1a9
commit f35cd62e88
4 changed files with 162 additions and 19 deletions
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2
PowerEditor/src/WinControls/DockingWnd/DockingManager.cpp
View File

@ -57,7 +57,7 @@ DockingManager::DockingManager()
{
_isInitialized = FALSE;
_hImageList = NULL;
memset(_iContMap, -1, CONT_MAP_MAX);
memset(_iContMap, -1, CONT_MAP_MAX * sizeof(int));
_iContMap[0] = CONT_LEFT;
_iContMap[1] = CONT_RIGHT;

12
PowerEditor/src/WinControls/ProjectPanel/ProjectPanel.cpp
View File

@ -85,6 +85,16 @@ BOOL CALLBACK ProjectPanel::run_dlgProc(UINT message, WPARAM wParam, LPARAM lPar
return TRUE;
}
case WM_MOUSEMOVE:
if (_treeView.isDragging())
_treeView.dragItem(_hSelf, LOWORD(lParam), HIWORD(lParam));
break;
case WM_LBUTTONUP:
if (_treeView.isDragging())
_treeView.dropItem();
break;
case WM_NOTIFY:
{
notified((LPNMHDR)lParam);
@ -624,6 +634,7 @@ void ProjectPanel::notified(LPNMHDR notification)
case TVN_BEGINDRAG:
{
//printStr(TEXT("hello"));
_treeView.beginDrag((LPNMTREEVIEW)notification);
}
break;
@ -1099,7 +1110,6 @@ BOOL CALLBACK FileRelocalizerDlg::run_dlgProc(UINT Message, WPARAM wParam, LPARA
::SetDlgItemText(_hSelf, IDC_EDIT_FILEFULLPATHNAME, _fullFilePath.c_str());
return TRUE;
}
case WM_COMMAND :
{
switch (wParam)

138
PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp
View File

@ -52,16 +52,10 @@ void TreeView::destroy()
}
LRESULT TreeView::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{/*
{
switch(Message)
{
case WM_MOUSEMOVE:
//::MessageBoxA(NULL, "WM_MOUSEMOVE", "", MB_OK);
break;
case WM_LBUTTONUP:
//::MessageBoxA(NULL, "WM_LBUTTONUP", "", MB_OK);
//SendMessage to parent
break;
case WM_KEYDOWN:
if (wParam == VK_F2)
::MessageBoxA(NULL, "VK_F2", "", MB_OK);
@ -69,7 +63,7 @@ LRESULT TreeView::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
default:
return ::CallWindowProc(_defaultProc, hwnd, Message, wParam, lParam);
}
*/
return ::CallWindowProc(_defaultProc, hwnd, Message, wParam, lParam);
}
@ -142,7 +136,7 @@ void TreeView::cleanSubEntries(HTREEITEM hTreeItem)
}
void TreeView::setItemImage(HTREEITEM hTreeItem, int iImage, int iSelectedImage)
{
{
TVITEM tvItem;
tvItem.hItem = hTreeItem;
tvItem.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
@ -151,3 +145,127 @@ void TreeView::setItemImage(HTREEITEM hTreeItem, int iImage, int iSelectedImage)
TreeView_SetItem(_hSelf, &tvItem);
}
// pass LPARAM of WM_NOTIFY here after casted to NMTREEVIEW*
void TreeView::beginDrag(NMTREEVIEW* tv)
{
// create dragging image for you using TVM_CREATEDRAGIMAGE
// You have to delete it after drop operation, so remember it.
_draggedItem = tv->itemNew.hItem;
_draggedImageList = (HIMAGELIST)::SendMessage(_hSelf, TVM_CREATEDRAGIMAGE, (WPARAM)0, (LPARAM)_draggedItem);
// start dragging operation
// PARAMS: HIMAGELIST, imageIndex, xHotspot, yHotspot
::ImageList_BeginDrag(_draggedImageList, 0, 0, 0);
::ImageList_DragEnter(_hSelf, tv->ptDrag.x, tv->ptDrag.y);
// redirect mouse input to the parent window
::SetCapture(::GetParent(_hSelf));
::ShowCursor(false); // hide the cursor
_isItemDragged = true;
}
void TreeView::dragItem(HWND parentHandle, int x, int y)
{
// convert the dialog coords to control coords
POINT point;
point.x = (SHORT)x;
point.y = (SHORT)y;
::ClientToScreen(parentHandle, &point);
::ScreenToClient(_hSelf, &point);
// drag the item to the current the cursor position
::ImageList_DragMove(point.x, point.y);
// hide the dragged image, so the background can be refreshed
::ImageList_DragShowNolock(false);
// find out if the pointer is on an item
// If so, highlight the item as a drop target.
TVHITTESTINFO hitTestInfo;
hitTestInfo.pt.x = point.x;
hitTestInfo.pt.y = point.y;
HTREEITEM targetItem = (HTREEITEM)::SendMessage(_hSelf, TVM_HITTEST, (WPARAM)0, (LPARAM)&hitTestInfo);
if(targetItem)
{
// highlight the target of drag-and-drop operation
::SendMessage(_hSelf, TVM_SELECTITEM, (WPARAM)(TVGN_DROPHILITE), (LPARAM)targetItem);
}
// show the dragged image
::ImageList_DragShowNolock(true);
/*
ImageList_DragMove(x-32, y-25); // where to draw the drag from
ImageList_DragShowNolock(FALSE);
// the highlight items should be as
// the same points as the drag
TVHITTESTINFO tvht;
tvht.pt.x = x-20;
tvht.pt.y = y-20; //
HTREEITEM hitTarget=(HTREEITEM)SendMessage(parentHandle,TVM_HITTEST,NULL,(LPARAM)&tvht);
if (hitTarget) // if there is a hit
SendMessage(parentHandle,TVM_SELECTITEM,TVGN_DROPHILITE,(LPARAM)hitTarget); // highlight it
ImageList_DragShowNolock(TRUE);
*/
}
void TreeView::dropItem()
{
// get the target item
HTREEITEM targetItem = (HTREEITEM)::SendMessage(_hSelf, TVM_GETNEXTITEM, (WPARAM)TVGN_DROPHILITE, (LPARAM)0);
// make a copy of the dragged item and insert the clone under
// the target item, then, delete the original dragged item
// Note that the dragged item may have children. In this case,
// you have to move (copy and delete) for every child items, too.
moveTreeViewItem(_draggedItem, targetItem);
// finish drag-and-drop operation
::ImageList_EndDrag();
::ImageList_Destroy(_draggedImageList);
::ReleaseCapture();
::ShowCursor(true);
SendMessage(_hSelf,TVM_SELECTITEM,TVGN_CARET,(LPARAM)targetItem);
SendMessage(_hSelf,TVM_SELECTITEM,TVGN_DROPHILITE,0);
// clear global variables
_draggedItem = 0;
_draggedImageList = 0;
_isItemDragged = false;
/*
ImageList_DragLeave(_hSelf);
ImageList_EndDrag();
HTREEITEM Selected=(HTREEITEM)SendMessage(_hSelf,TVM_GETNEXTITEM,TVGN_DROPHILITE,0);
SendMessage(_hSelf,TVM_SELECTITEM,TVGN_CARET,(LPARAM)Selected);
SendMessage(_hSelf,TVM_SELECTITEM,TVGN_DROPHILITE,0);
ReleaseCapture();
ShowCursor(TRUE);
_isItemDragged = FALSE;
*/
}
void TreeView::moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem)
{
TCHAR textBuffer[MAX_PATH];
TVITEM tvItem;
tvItem.mask = TVIF_TEXT | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE;
tvItem.pszText = textBuffer;
tvItem.cchTextMax = MAX_PATH;
tvItem.hItem = draggedItem;
SendMessage(_hSelf, TVM_GETITEM, 0,(LPARAM)&tvItem);
TVINSERTSTRUCT tvInsertStruct;
tvInsertStruct.item = tvItem;
tvInsertStruct.hInsertAfter = (HTREEITEM)TVI_LAST;
tvInsertStruct.hParent = targetItem;
::SendMessage(_hSelf, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvInsertStruct);
}

17
PowerEditor/src/WinControls/ProjectPanel/TreeView.h
View File

@ -23,7 +23,7 @@
class TreeView : public Window
{
public:
TreeView() : Window() {};
TreeView() : Window(), _isItemDragged(false) {};
virtual ~TreeView() {};
virtual void init(HINSTANCE hInst, HWND parent, int treeViewID);
@ -52,6 +52,14 @@ public:
};
void setItemImage(HTREEITEM hTreeItem, int iImage, int iSelectedImage);
void beginDrag(NMTREEVIEW* tv);
void dragItem(HWND parentHandle, int x, int y);
void dropItem();
bool isDragging() const {
return _isItemDragged;
};
void moveTreeViewItem(HTREEITEM draggedItem, HTREEITEM targetItem);
protected:
WNDPROC _defaultProc;
LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
@ -59,6 +67,13 @@ protected:
static LRESULT CALLBACK staticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
return (((TreeView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
};
private:
// Drag and drop
HTREEITEM _draggedItem;
HIMAGELIST _draggedImageList;
bool _isItemDragged;
};