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TreeView.cpp
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TreeView.cpp
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#include "stdafx.h"
#include "resource.h"
#include "res1.h"
#include "utils.h"
#include "apputils.h"
#include "FBEView.h"
#include "FBDoc.h"
#include "TreeView.h"
extern CElementDescMnr _EDMnr;
// redrawing the tree is _very_ ugly visually, so we first build a copy and compare them
struct TreeNode {
TreeNode *parent,*next,*last,*child;
CString text;
int img;
MSHTML::IHTMLElement *pos;
TreeNode() : parent(0), next(0), child(0), last(0), img(0), pos(0) { }
TreeNode(TreeNode *nn,const CString& s,int ii,MSHTML::IHTMLElement *pp) : parent(nn), next(0), last(0), child(0),
text(s), img(ii), pos(pp)
{
if (pos)
pos->AddRef();
}
~TreeNode() {
if (pos)
pos->Release();
TreeNode *q;
for (TreeNode *n=child;n;n=q) {
q=n->next;
delete n;
}
}
TreeNode *Append(const CString& s,int ii,MSHTML::IHTMLElement *p) {
TreeNode *n=new TreeNode(this,s,ii,p);
if (last) {
last->next=n;
last=n;
} else
last=child=n;
return n;
}
};
static bool SearchUnder(CTreeItem& ret,CTreeItem ii,MSHTML::IHTMLElement *p) {
CTreeItem jj(ii.GetChild());
while (!jj.IsNull()) {
MSHTML::IHTMLElement *n=(MSHTML::IHTMLElement *)jj.GetData();
if (n && n->contains(p)) {
ret=jj;
if (jj.HasChildren())
SearchUnder(ret,jj,p);
return true;
}
jj=jj.GetNextSibling();
}
return false;
}
CTreeItem CTreeView::LocatePosition(MSHTML::IHTMLElement *p) {
CTreeItem ret(TVI_ROOT,this);
if (GetCount()==0 || !p)
return ret; // no items at all
SearchUnder(ret,ret,p);
return ret;
}
void CTreeView::HighlightItemAtPos(MSHTML::IHTMLElement *p) {
CTreeItem ii(LocatePosition(p));
if (ii==m_last_lookup_item)
return;
m_last_lookup_item=ii;
ClearSelection();
if (ii!=TVI_ROOT) {
SelectItem(ii);
// EnsureVisible(ii);
} else
SelectItem(0);
}
static void MakeNode(TreeNode* parent, MSHTML::IHTMLDOMNodePtr elem)
{
if (elem->nodeType != 1)
return;
MSHTML::IHTMLElementPtr he(elem);
/*_bstr_t nn(he->tagName);
_bstr_t cn(he->className);
if (U::scmp(nn,L"DIV")==0) {
// at this point we are interested only in sections/subtitles/poems/stanzas
int img=0;
CString txt;
if (U::scmp(cn,L"poem")==0 || U::scmp(cn,L"stanza")==0) {
txt=FindTitle(elem);
img=3;
}
else if (U::scmp(cn,L"body")==0) {
txt=AU::GetAttrCS(he,L"fbname");
U::NormalizeInplace(txt);
if (txt.IsEmpty())
txt=FindTitle(elem);
img=0;
} else if (U::scmp(cn,L"section")==0) {
txt=FindTitle(elem);
img=0;
} else if (U::scmp(cn,L"epigraph")==0 || U::scmp(cn,L"annotation")==0 ||
U::scmp(cn,L"history")==0 || U::scmp(cn,L"cite")==0)
{
img=0;
}
// Modification by Pilgrim
else if (U::scmp(cn,L"table")==0 || U::scmp(cn,L"tr")==0 || U::scmp(cn,L"th")==0 || U::scmp(cn,L"td")==0) {
txt=FindTitle(elem);
img=3;
}
else if (U::scmp(cn,L"image")==0) {
txt=GetImageFileName(elem);
img=3;
}
else
{
elem=elem->firstChild;
while ((bool)elem)
{
MakeNode(parent,elem);
elem=elem->nextSibling;
}
return;
}
U::NormalizeInplace(txt);
if (txt.IsEmpty())
txt.Format(_T("<%s>"),(const TCHAR *)cn);
parent=parent->Append(txt,img,he);
} else if (U::scmp(nn,L"P")==0 && U::scmp(cn,L"subtitle")==0) {
CString txt((const TCHAR *)he->innerText);
U::NormalizeInplace(txt);
if (txt.IsEmpty())
txt=_T("<subtitle>");
parent=parent->Append(txt,6,he);
}*/
_bstr_t cn(he->className);
CElementDescriptor* ED = 0;
if(_EDMnr.GetElementDescriptor(he, &ED) && ED->ViewInTree())
{
CString txt = ED->GetTitle(he);
U::NormalizeInplace(txt);
if(txt.IsEmpty())
txt.Format(_T("<%s>"), (const TCHAR*)cn);
parent = parent->Append(txt, ED->GetDTImageID(), he);
}
elem = elem->firstChild;
while((bool)elem)
{
MakeNode(parent, elem);
elem = elem->nextSibling;
}
return;
}
static TreeNode *GetDocTree(MSHTML::IHTMLDocument2Ptr& view)
{
TreeNode *root=new TreeNode();
try {
MakeNode(root,view->body);
}
catch (_com_error&) {
}
if (!root->child) {
delete root;
return NULL;
}
return root;
}
static void CompareTreesAndSet(TreeNode *n,CTreeItem ii,bool& fDisableRedraw) {
bool fH1=ii==TVI_ROOT ? ii.m_pTreeView->GetCount()>0 : ii.HasChildren()!=0;
// walk them one by one and check
CTreeItem nc=fH1 ? ii.GetChild() : CTreeItem(NULL,ii.m_pTreeView);
TreeNode *ic=n->child;
CString text;
while (ic && nc) {
int img1,img2;
nc.GetImage(img1,img2);
nc.GetText(text);
if (text!=ic->text || img1!=ic->img) { // differ
// copy the item here
if (!fDisableRedraw) {
ii.m_pTreeView->SetRedraw(FALSE);
fDisableRedraw=true;
}
nc.SetImage(ic->img,ic->img);
nc.SetText(ic->text);
}
MSHTML::IHTMLElement *od=(MSHTML::IHTMLElement *)nc.GetData();
if (od)
od->Release();
if (ic->pos)
ic->pos->AddRef();
nc.SetData((LPARAM)ic->pos);
CompareTreesAndSet(ic,nc,fDisableRedraw);
ic=ic->next;
nc=nc.GetNextSibling();
}
CTreeItem next;
if ((nc || ic) && !fDisableRedraw) {
ii.m_pTreeView->SetRedraw(FALSE);
fDisableRedraw=true;
}
while (nc) { // remove extra children, staring with ic
next=nc.GetNextSibling();
nc.Delete();
nc=next;
}
while (ic) { // append children to ii
nc=ii.AddTail(ic->text,ic->img);
if (ic->pos)
ic->pos->AddRef();
nc.SetData((LPARAM)ic->pos);
if (ic->child)
CompareTreesAndSet(ic,nc,fDisableRedraw);
ic=ic->next;
}
}
void CTreeView::GetDocumentStructure(MSHTML::IHTMLDocument2Ptr& view) {
m_last_lookup_item=0;
TreeNode *root=GetDocTree(view);
if (!root) {
SetRedraw(FALSE);
DeleteAllItems();
SetRedraw(TRUE);
return;
}
bool fDisableRedraw=false;
CompareTreesAndSet(root,CTreeItem(TVI_ROOT,this),fDisableRedraw);
if (fDisableRedraw)
SetRedraw(TRUE);
delete root;
}
void CTreeView::UpdateAll()
{
::SendMessage(m_main_window, WM_COMMAND, MAKELONG(0,IDN_TREE_UPDATE_ME), (LPARAM)m_hWnd);
}
void CTreeView::UpdateDocumentStructure(MSHTML::IHTMLDocument2Ptr& v,MSHTML::IHTMLDOMNodePtr node) {
MSHTML::IHTMLElementPtr ce(node);
/*CTreeItem selected_item = GetFirstSelectedItem();
MSHTML::IHTMLElementPtr selected_elem;
if(!selected_item.IsNull() && selected_item.GetData())
{
selected_elem = (MSHTML::IHTMLElement*)selected_item.GetData();
}*/
CTreeItem ii(LocatePosition(ce));
if (ii==TVI_ROOT) { // huh?
GetDocumentStructure(v);
return;
}
MSHTML::IHTMLElementPtr jj((MSHTML::IHTMLElement *)ii.GetData());
// shortcut for the most common situation
// all changes confined to a P, which is not in the title
if (U::scmp(jj->tagName,L"DIV")==0 && U::scmp(node->nodeName,L"P")==0) {
MSHTML::IHTMLElementPtr tn(U::FindTitleNode(jj));
if (!(bool)tn || (tn!=ce && tn->contains(ce)!=VARIANT_TRUE))
return;
// ???? ???????? ????????? ?????? ? ?????????, ?? ?????? ?????? ????? ?????????
if ((bool)tn && (tn==ce || tn->contains(ce)==VARIANT_TRUE))
{
CString txt = (wchar_t*)tn->innerText;
U::NormalizeInplace(txt);
ii.SetText(txt);
return;
}
}
TreeNode *nn=new TreeNode;
try
{
MakeNode(nn,jj);
}
catch(_com_error&){}
bool fDisableRedraw=false;
// check the item itself
CString text;
int img1,img2;
ii.GetImage(img1,img2);
ii.GetText(text);
if (text!=nn->child->text || img1!=nn->child->img) { // differ
// copy the item here
SetRedraw(FALSE);
fDisableRedraw=true;
ii.SetImage(nn->child->img,nn->child->img);
ii.SetText(nn->child->text);
}
CompareTreesAndSet(nn->child,ii,fDisableRedraw);
if (fDisableRedraw)
SetRedraw(TRUE);
/* if((bool)selected_elem)
{
SelectElement(selected_elem);
}*/
delete nn;
}
BOOL CTreeView::PreTranslateMessage(MSG* pMsg)
{
pMsg;
return FALSE;
}
LRESULT CTreeView::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// "CTreeViewCtrl::OnCreate()"
LRESULT lRet = DefWindowProc(uMsg, wParam, lParam);
// "OnInitialUpdate"
m_ImageList.CreateFromImage(IDB_STRUCTURE,16,32,RGB(255,0,255),IMAGE_BITMAP);
SetImageList(m_ImageList,TVSIL_NORMAL);
SetScrollTime(1);
FillEDMnr();
bHandled = TRUE;
return lRet;
}
LRESULT CTreeView::OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
SetImageList(NULL,TVSIL_NORMAL);
m_ImageList.Destroy();
/* delete m_bodyED;
delete m_sectionED;
delete m_imageED;
delete m_poemED;*/
// Say that we didn't handle it so that the treeview and anyone else
// interested gets to handle the message
bHandled = FALSE;
return 0;
}
LRESULT CTreeView::OnClick(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
bHandled = SetMultiSelection(wParam, lParam);
// check if we are going to hit an item
/*UINT flags=0;
CTreeItem ii(HitTest(CPoint(LOWORD(lParam),HIWORD(lParam)),&flags));
if (flags&TVHT_ONITEM && !ii.IsNull()) { // try to select and expand it
CTreeItem sel(GetSelectedItem());
if (sel!=ii)
ii.Select();
if (!(ii.GetState(TVIS_EXPANDED)&TVIS_EXPANDED))
ii.Expand();
SetFocus();
} //else*/
//bHandled=FALSE;
return 0;
}
LRESULT CTreeView::OnDblClick(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// check if we double-clicked an already selected item item
UINT flags=0;
CTreeItem ii(HitTest(CPoint(LOWORD(lParam),HIWORD(lParam)),&flags));
if (flags&TVHT_ONITEM && !ii.IsNull() && ii==GetSelectedItem())
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_CLICK),(LPARAM)m_hWnd);
return 0;
}
static void RecursiveExpand(CTreeItem n,bool *fEnable) {
for (CTreeItem ch(n.GetChild());!ch.IsNull();ch=ch.GetNextSibling()) {
if (!ch.HasChildren())
continue;
if (!(ch.GetState(TVIS_EXPANDED)&TVIS_EXPANDED)) {
if (!*fEnable) {
*fEnable=true;
ch.GetTreeView()->SetRedraw(FALSE);
}
ch.Expand();
}
RecursiveExpand(ch,fEnable);
}
}
LRESULT CTreeView::OnChar(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
switch (wParam) {
case VK_RETURN: // swallow
break;
case '*': // expand the entire tree
if (GetCount()>0) {
bool fEnable=false;
RecursiveExpand(CTreeItem(TVI_ROOT,this),&fEnable);
if (fEnable)
SetRedraw(TRUE);
}
break;
default: // pass to control
bHandled=FALSE;
}
bHandled=FALSE;
return 0;
}
LRESULT CTreeView::OnKeyDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (wParam==VK_RETURN)
::PostMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_RETURN),(LPARAM)m_hWnd);
if ( (wParam==VK_UP || wParam==VK_DOWN) && GetKeyState( VK_SHIFT )&0x8000)
{
// Initialize the reference item if this is the first shift selection
if( !m_hItemFirstSel )
{
m_hItemFirstSel = GetSelectedItem();
ClearSelection();
}
// Find which item is currently selected
HTREEITEM hItemPrevSel = GetSelectedItem();
HTREEITEM hItemNext;
if ( wParam==VK_UP )
hItemNext = GetPrevVisibleItem( hItemPrevSel );
else
hItemNext = GetNextVisibleItem( hItemPrevSel );
if ( hItemNext )
{
// Determine if we need to reselect previously selected item
BOOL bReselect =
!( GetItemState( hItemNext, TVIS_SELECTED ) & TVIS_SELECTED );
// Select the next item - this will also deselect the previous item
SelectItem( hItemNext );
// Reselect the previously selected item
if ( bReselect )
SetItemState( hItemPrevSel, TVIS_SELECTED, TVIS_SELECTED );
}
bHandled=TRUE;
return 0;
}
else if( wParam >= VK_SPACE )
{
m_hItemFirstSel = NULL;
ClearSelection();
}
bHandled=FALSE;
return 0;
}
LRESULT CTreeView::OnBegindrag(int idCtrl, LPNMHDR mhdr, BOOL& bHandled)
{
LPNMTREEVIEW pnmtv = (LPNMTREEVIEW) mhdr;
m_move_from.m_hTreeItem = pnmtv->itemNew.hItem;
m_himlDrag = TreeView_CreateDragImage(*this, pnmtv->itemNew.hItem);
ImageList_BeginDrag(this->m_himlDrag, 0, 0, 0);
ImageList_DragEnter(*this, pnmtv->ptDrag.x,pnmtv->ptDrag.y);
SetCapture();
m_drag = true;
bHandled = false;
return 0;
}
LRESULT CTreeView::OnLButtonUp(UINT, WPARAM, LPARAM, BOOL& bHandled)
{
if(m_drag)
{
EndDrag();
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT),(LPARAM)m_hWnd);
}
bHandled = false;
return 0;
}
LRESULT CTreeView::OnMouseMove(UINT, WPARAM, LPARAM lParam, BOOL& bHandled)
{
if(m_drag)
{
POINTS Pos = MAKEPOINTS(lParam);
POINT point;
point.x = Pos.x;
point.y = Pos.y;
ImageList_DragMove(Pos.x, Pos.y);
UINT flags;
CTreeItem hitem(this->HitTest(point, &flags), this);
if (!hitem.IsNull())
{
if(IsDropChangePosition(flags, hitem))
{
CImageList::DragShowNolock(FALSE);
if(IsParent(m_move_from, hitem))
{
SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
GetItemImage(hitem, m_drop_item_nimage, m_drop_item_nimage);
m_insert_type = CTreeView::none;
SelectItem(hitem);
}
else if(flags & TVHT_ONITEMICON)
{
SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
GetItemImage(hitem, m_drop_item_nimage, m_drop_item_nimage);
SetItemImage(hitem, m_drop_item_nimage + 1, m_drop_item_nimage + 1);
m_insert_type = CTreeView::sibling;
SelectItem(hitem);
}
else if(flags & TVHT_ONITEMLABEL)
{
SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
GetItemImage(hitem, m_drop_item_nimage, m_drop_item_nimage);
SetItemImage(hitem, m_drop_item_nimage + 2, m_drop_item_nimage + 2);
m_insert_type = CTreeView::child;
SelectItem(hitem);
}
else
{
SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
GetItemImage(hitem, m_drop_item_nimage, m_drop_item_nimage);
m_insert_type = CTreeView::none;
}
m_move_to.m_hTreeItem = hitem;
CImageList::DragShowNolock(TRUE);
}
else
{
//SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
}
}
}
bHandled = false;
return 0;
}
LRESULT CTreeView::OnRClick(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM lParam, BOOL& /*bHandled*/)
{
if(m_drag)
{
EndDrag();
}
UINT flags = 0;
CTreeItem htItem(HitTest(CPoint(LOWORD(lParam),HIWORD(lParam)),&flags), this);
if(!htItem.GetState(TVIS_SELECTED))
{
ClearSelection();
SelectItem(htItem);
}
SendMessage(WM_CONTEXTMENU, (WPARAM) m_hWnd, GetMessagePos());
return 0;
}
LRESULT CTreeView::OnContextMenu(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/)
{
CPoint ptMousePos = (CPoint)lParam;
// i f Shift-F10
if (ptMousePos.x == -1 && ptMousePos.y == -1)
{
ptMousePos = (CPoint)GetMessagePos();
}
ScreenToClient(&ptMousePos);
UINT uFlags;
CTreeItem htItem(HitTest( ptMousePos, &uFlags ), this);
if( htItem.IsNull() )
return 0;
//m_hActiveItem = htItem;
HMENU menu;
HMENU pPopup;
// the font popup is stored in a resource
menu = ::LoadMenu(_Module.GetResourceInstance(), MAKEINTRESOURCEW(IDR_DOCUMENT_TREE));
pPopup = ::GetSubMenu(menu, 0);
ClientToScreen(&ptMousePos);
BOOL res = ::TrackPopupMenu(pPopup, TPM_LEFTALIGN, ptMousePos.x, ptMousePos.y, 0, *this, 0);
int err = GetLastError();
return 1;
}
bool CTreeView::IsDropChangePosition(UINT flags, HTREEITEM hitem)
{
if(hitem != m_move_to.m_hTreeItem)
return true;
if(flags & TVHT_ONITEMICON)
if(m_insert_type != CTreeView::sibling)
return true;
else
return false;
if(flags & TVHT_ONITEMLABEL)
if (m_insert_type != CTreeView::child)
return true;
else
return false;
if (m_insert_type != CTreeView::none)
return true;
else
return false;
}
bool CTreeView::IsParent(CTreeItem parent, CTreeItem child)
{
if(parent == child)
return true;
while((child = child.GetParent()) && !child.IsNull())
{
if(parent == child)
return true;
}
return false;
}
bool CTreeView::IsSibling(CTreeItem item, CTreeItem sibling)
{
return (IsOneOfNextSibling(item, sibling) || IsOneOfPrevSibling(item, sibling));
}
bool CTreeView::IsOneOfNextSibling(CTreeItem item, CTreeItem sibling)
{
if(item == sibling)
return true;
while((sibling = sibling.GetNextSibling()) && !sibling.IsNull())
{
if(item == sibling)
return true;
}
return false;
}
bool CTreeView::IsOneOfPrevSibling(CTreeItem item, CTreeItem sibling)
{
if(item == sibling)
return true;
while((sibling = sibling.GetPrevSibling()), !sibling.IsNull())
{
if(item == sibling)
return true;
}
return false;
}
void CTreeView::EndDrag()
{
ImageList_DragLeave(*this);
ImageList_EndDrag();
ReleaseCapture();
SetItemImage(m_move_to, m_drop_item_nimage, m_drop_item_nimage);
SelectDropTarget(NULL);
m_drag = false;
}
LRESULT CTreeView::OnCut(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
// remove last selection
SetItemState(m_move_from, 0, TVIS_CUT);
HTREEITEM hitem = GetSelectedItem();
m_move_from = hitem;
SetItemState(hitem, TVIS_CUT, TVIS_CUT);
return 0;
}
LRESULT CTreeView::OnPaste(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
// remove selection
SetItemState(m_move_from, 0, TVIS_CUT);
m_move_to = GetSelectedItem();
m_insert_type = CTreeView::child;
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnView(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_VIEW_ELEMENT),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnViewSource(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_VIEW_ELEMENT_SOURCE),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnDelete(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_DELETE_ELEMENT),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnRight(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
//m_move_from = GetSelectedItem();
// ???? ????????? ??????? ?????? ?????? ????????
HTREEITEM from = GetSelectedItem();
HTREEITEM item = GetSelectedItem();// = TreeView_GetNextSibling(*this, m_move_from);
HTREEITEM prevItem = 0;
while(item = TreeView_GetNextSibling(*this, item))
{
prevItem = item;
}
item = prevItem;
m_move_to = GetSelectedItem();
m_insert_type = CTreeView::child;
while(item = TreeView_GetPrevSibling(*this, item))
{
if(prevItem == from)
break;
m_move_from = prevItem;
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT),(LPARAM)m_hWnd);
prevItem = item;
}
m_move_from = from;
m_move_to = TreeView_GetPrevSibling(*this, m_move_from);
if(m_move_to)
{
item = TreeView_GetPrevSibling(*this, m_move_from);
if(!item || ! m_move_from)
return 0;
if(TreeView_GetChild(*this, item))
{
item = TreeView_GetChild(*this, item);
while (item)
{
m_move_to = item;
item = TreeView_GetNextSibling(*this, item);
}
m_insert_type = CTreeView::sibling;
}
else
{
m_move_to = item;
m_insert_type = CTreeView::child;
}
}
else
{
}
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnRightOne(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT_ONE),(LPARAM)m_hWnd);
/*HTREEITEM item = GetFirstSelectedItem();
if(!item)
return 0;
do
{
MoveRightOne(item);
}while(item = GetNextSelectedItem(item));*/
return 0;
}
LRESULT CTreeView::OnRightSmart(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT_SMART),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnLeftOne(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_LEFT_ONE),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnLeftWithChildren(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_LEFT),(LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnMerge(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window, WM_COMMAND, MAKELONG(0, IDN_TREE_MERGE), (LPARAM)m_hWnd);
return 0;
}
LRESULT CTreeView::OnLeft(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_LEFT),(LPARAM)m_hWnd);
/*m_move_from = GetSelectedItem();
m_move_to = TreeView_GetParent(*this, m_move_from);
m_insert_type = InsertType::sibling;
::SendMessage(m_main_window,WM_COMMAND,MAKELONG(0,IDN_TREE_MOVE_ELEMENT),(LPARAM)m_hWnd);*/
return 0;
}
bool CTreeView::SetMultiSelection(UINT nFlags, CPoint point)
{
// Set focus to control if key strokes are needed.
// Focus is not automatically given to control on lbuttondown
//m_dwDragStart = GetTickCount();
UINT flag;
HTREEITEM hItem = HitTest( point, &flag );
if(nFlags & MK_SHIFT)
{
// Shift key is down
// Initialize the reference item if this is the first shift selection
if( !m_hItemFirstSel )
m_hItemFirstSel = GetSelectedItem();
// Select new item
if( GetSelectedItem() == hItem )
SelectItem( NULL ); // to prevent edit
// OnLButtonDown(nFlags, point);
if( m_hItemFirstSel )
{
SelectItems( m_hItemFirstSel, hItem, !(BOOL)(nFlags & MK_CONTROL));
return true;
}
}
else if(nFlags & MK_CONTROL )
{
// Control key is down
if( hItem )
{
// Toggle selection state
UINT uNewSelState =
GetItemState(hItem, TVIS_SELECTED) & TVIS_SELECTED ?
0 : TVIS_SELECTED;
// Get old selected (focus) item and state
HTREEITEM hItemOld = GetSelectedItem();
UINT uOldSelState = hItemOld ?
GetItemState(hItemOld, TVIS_SELECTED) : 0;
// Select new item
if( GetSelectedItem() == hItem )
{
SelectItem( NULL ); // to prevent edit
}
// OnLButtonDown(nFlags, point);
// Set proper selection (highlight) state for new item
SelectItem(hItem);
SetItemState(hItem, uNewSelState, TVIS_SELECTED);
// Restore state of old selected item
if (hItemOld && hItemOld != hItem)
SetItemState(hItemOld, uOldSelState, TVIS_SELECTED);
m_hItemFirstSel = NULL;
return true;
}
}
else
{
// Normal - remove all selection and let default
// handler do the rest
ClearSelection();
//SelectItem(hItem);
if(flag & TVHT_ONITEMICON || flag & TVHT_ONITEMLABEL)
TreeView_SetItemState(*this, hItem, TVIS_SELECTED, TVIS_SELECTED);
m_hItemFirstSel = NULL;
}
// OnLButtonDown(nFlags, point);
return false;
}
void CTreeView::ClearSelection()
{
// This can be time consuming for very large trees
// and is called every time the user does a normal selection
// If performance is an issue, it may be better to maintain
// a list of selected items
for (CTreeItem hItem(GetRootItem(), this); hItem!=NULL; hItem=GetNextItem(hItem))
if ( GetItemState( hItem, TVIS_SELECTED ) & TVIS_SELECTED )
SetItemState( hItem, 0, TVIS_SELECTED );
}
// SelectItems - Selects items from hItemFrom to hItemTo. Does not
// - select child item if parent is collapsed. Removes
// - selection from all other items
// hItemFrom - item to start selecting from
// hItemTo - item to end selection at.
BOOL CTreeView::SelectItems(HTREEITEM hItemFrom, HTREEITEM hItemTo, bool clearPrevSelection)
{
HTREEITEM hItem = GetRootItem();
// Clear selection upto the first item
while ( hItem && hItem!=hItemFrom && hItem!=hItemTo )
{
hItem = GetNextVisibleItem( hItem );
if(clearPrevSelection)
{
SetItemState( hItem, 0, TVIS_SELECTED );
}
}
if ( !hItem )
return FALSE; // Item is not visible
SelectItem( hItemTo );
// Rearrange hItemFrom and hItemTo so that hItemFirst is at top
if( hItem == hItemTo )
{
hItemTo = hItemFrom;
hItemFrom = hItem;
}
// Go through remaining visible items
BOOL bSelect = TRUE;
while ( hItem )
{
// Select or remove selection depending on whether item
// is still within the range.
SetItemState( hItem, bSelect ? TVIS_SELECTED : 0, TVIS_SELECTED );
// Do we need to start removing items from selection
if( hItem == hItemTo )
bSelect = FALSE;
hItem = GetNextVisibleItem( hItem );
}
return TRUE;
}
CTreeItem CTreeView::GetFirstSelectedItem()
{
for ( CTreeItem hItem(GetRootItem(), this); !hItem.IsNull(); hItem = GetNextItem( hItem ) )
if ( GetItemState( hItem, TVIS_SELECTED ) & TVIS_SELECTED )
return hItem;
return NULL;
}
CTreeItem CTreeView::GetLastSelectedItem()
{
CTreeItem ret;
for ( CTreeItem hItem(GetRootItem(), this); !hItem.IsNull(); hItem = GetNextItem( hItem ) )
if ( GetItemState( hItem, TVIS_SELECTED ) & TVIS_SELECTED )
{
ret = hItem;
}
return ret;
}
CTreeItem CTreeView::GetNextSelectedItem( CTreeItem hItem )
{
for ( hItem = GetNextItem( hItem ); !hItem.IsNull(); hItem = GetNextItem( hItem ) )
if ( GetItemState( hItem, TVIS_SELECTED ) & TVIS_SELECTED )
return hItem;