C++ wxTreeItemId::IsOk方法代码示例

wxTreeItemId PHPFileLayoutTree::TryGetPrevItem(wxTreeItemId item)
{
    wxCHECK_MSG(item.IsOk(), wxTreeItemId(), wxT("invalid tree item"));

    // find out the starting point
    wxTreeItemId prevItem = GetPrevSibling(item);
    if(!prevItem.IsOk()) {
        prevItem = GetItemParent(item);
        if(prevItem == GetRootItem()) {
            return wxTreeItemId();
        }
    }

    // from there we must be able to navigate until this item
    while(prevItem.IsOk()) {

        ScrollTo(prevItem);

        if(!IsVisible(prevItem)) {
            return wxTreeItemId();
        }

        const wxTreeItemId nextItem = GetNextVisible(prevItem);
        if(!nextItem.IsOk() || nextItem == item) return prevItem;

        prevItem = nextItem;
    }

    return wxTreeItemId();
}

bool BundlePane::IsTreeItemParentOf(const wxTreeItemId parent, const wxTreeItemId child) const {
	wxASSERT(parent.IsOk() && child.IsOk());

	wxTreeItemId item = m_bundleTree->GetItemParent(child);

	while (item.IsOk()) {
		if (item == parent) return true;
		item = m_bundleTree->GetItemParent(item);
	}

	return false;
}

void ecAdminDialog::OnRemove(wxCommandEvent& event)
{
    wxTreeCtrl* treeCtrl = (wxTreeCtrl*) FindWindow( ecID_ADMIN_DIALOG_TREE) ;

    const wxTreeItemId hTreeItem = treeCtrl->GetSelection ();
    if (! hTreeItem || !hTreeItem.IsOk())
        return;
    
    if (wxYES != wxMessageBox (_("The selected package will be deleted from the repository. Core eCos packages may be restored only by reinstalling eCos.\n\nDo you wish to continue?"),
        _("Remove Package"), wxYES_NO | wxICON_EXCLAMATION))
        return;

    ecAdminItemData* data = (ecAdminItemData*) treeCtrl->GetItemData (hTreeItem);

    if (data) // if a package node is selected
    {
        // remove all package version nodes

        wxString pstrPackage(data->m_string);
        
        bool bStatus = TRUE;
        long cookie;
        wxTreeItemId hChildItem = treeCtrl->GetFirstChild (hTreeItem, cookie);
        while (hChildItem && bStatus)
        {
            const wxTreeItemId hNextChildItem = treeCtrl->GetNextSibling (hChildItem);			
            bStatus = RemovePackageVersion (hChildItem);
            hChildItem = hNextChildItem;
        }
        
        // remove the package node
        
        if (bStatus)
        {
            treeCtrl->Delete (hTreeItem);
        }
    }
    else // a version node is selected
    {
        // remove the version node
        
        const wxTreeItemId hParentItem = treeCtrl->GetParent (hTreeItem);
        wxASSERT (hParentItem && hParentItem.IsOk() );
        if (RemovePackageVersion (hTreeItem) && ! treeCtrl->ItemHasChildren (hParentItem)) // if the only version was deleted
        {
            // remove the package node
            
            treeCtrl->Delete (hParentItem); 
        }
    }
}

//---------------------------------------------------------
bool CData_Source_PgSQL::Source_Create(const wxTreeItemId &Item)
{
	CData_Source_PgSQL_Data	*pData	= Item.IsOk() ? (CData_Source_PgSQL_Data *)GetItemData(Item) : NULL; if( pData == NULL )	return( false );

	if( pData->Get_Type() == TYPE_ROOT
	||  pData->Get_Type() == TYPE_SERVER )
	{
		CSG_Module	*pModule	= SG_Get_Module_Library_Manager().Get_Module("db_pgsql", DB_PGSQL_DB_Create);

		if(	pModule && pModule->On_Before_Execution() )
		{
			if( pData->Get_Type() == TYPE_SERVER )
			{
				pModule->Set_Parameter("PG_HOST", pData->Get_Host());
				pModule->Set_Parameter("PG_PORT", pData->Get_Port());
			}

			if( DLG_Parameters(pModule->Get_Parameters()) )
			{
				pModule->Execute();
			}
		}
	}

	return( true );
}

//---------------------------------------------------------
void CData_Source_PgSQL::Append_Table(const wxTreeItemId &Parent, const SG_Char *Name, int Type, int Image)
{
	CData_Source_PgSQL_Data	*pData	= Parent.IsOk() ? (CData_Source_PgSQL_Data *)GetItemData(Parent) : NULL; if( pData == NULL )	return;

	wxTreeItemId	Item	= AppendItem(Parent, Name, Image, Image, new CData_Source_PgSQL_Data(Type, Name, pData->Get_Server()));

	if( Type == TYPE_GRIDS )
	{
		CSG_Table	Grids;

		RUN_MODULE(DB_PGSQL_Table_Query, false,	// CTable_Query
				SET_PARAMETER("CONNECTION", pData->Get_Server())
			&&	SET_PARAMETER("TABLES"    , Name)
			&&	SET_PARAMETER("TABLE"     , &Grids)
			&&  SET_PARAMETER("FIELDS"    , SG_T("rid, name"))
		);

		if( bResult )
		{
			for(int i=0; i<Grids.Get_Count(); i++)
			{
				AppendItem(Item, Grids[i].asString(1), IMG_GRID, IMG_GRID,
					new CData_Source_PgSQL_Data(TYPE_GRID, CSG_String::Format("%s:rid=%d", Name, Grids[i].asInt(0)), pData->Get_Server())
				);
			}
		}
	}
}

//---------------------------------------------------------
void CData_Source_PgSQL::Source_Open(const wxTreeItemId &Item)
{
	CData_Source_PgSQL_Data	*pData	= Item.IsOk() ? (CData_Source_PgSQL_Data *)GetItemData(Item) : NULL; if( pData == NULL )	return;

	if( pData->Get_Type() == TYPE_ROOT
	||  pData->Get_Type() == TYPE_SERVER )
	{
		CSG_Module	*pModule	= SG_Get_Module_Library_Manager().Get_Module("db_pgsql", DB_PGSQL_Get_Connection);	// CGet_Connection

		if(	pModule && pModule->On_Before_Execution() )
		{
			if( pData->Get_Type() == TYPE_SERVER )
			{
				pModule->Set_Parameter("PG_HOST", pData->Get_Host());
				pModule->Set_Parameter("PG_PORT", pData->Get_Port());
			}

			if( DLG_Parameters(pModule->Get_Parameters()) )
			{
				pModule->Execute();
			}
		}
	}
	else if( pData->is_Connected() )
	{
		Update_Source(Item);
	}
	else if( !Source_Open(pData, true) )
	{
		DLG_Message_Show_Error(_TL("Could not connect to data source."), _TL("Connect to PostgreSQL"));
	}
}

wxTreeItemId CocaSystemTree::findId( const void* nodePointer, wxTreeItemId id ) const
{
    if ( !id.IsOk() ) { return id; }

    if ( nodePointer == getNode( id ) ) { return id; }

    wxTreeItemIdValue cookie = 0;
    id = GetFirstChild( id, cookie );
    for ( ; id.IsOk(); id = GetNextSibling( id ) )
    {
        wxTreeItemId foundId = findId( nodePointer, id );
        if ( foundId.IsOk() ) { return foundId; }
    }

    return id; // is invalid
}

void  MainWindow::Search(wxTreeItemId search,bool toogle)
{
	wxTreeItemIdValue cookie;
	NodeTree *itemData = search.IsOk() ? (NodeTree *) tree->GetItemData(search)
		:NULL;

	if(itemData->getTipo()==N_World )
		if(itemData->pointer.world->getNumObjects()!=0)
			Search(tree->GetFirstChild(search,cookie),toogle);
	
	if(itemData->menus.menu_positionable)
	{
		if(itemData->menus.menu_composed || itemData->pointer.positionableentity->getOwner()->getClassName()=="World")
		{
			if(toogle)
				itemData->pointer.positionableentity->setDrawReferenceSystem();
			else
				itemData->pointer.positionableentity->setDrawReferenceSystem(false);
		
			if(itemData->menus.menu_composed)
				if(itemData->pointer.composedentity->getNumObjects()>0)
					Search(tree->GetFirstChild(search,cookie),toogle);
		}
	}
	if(tree->GetLastChild(tree->GetItemParent(search))==search)
		return;
	
	Search(tree->GetNextSibling(search),toogle);

}

wxTreeItemId wxSpinTreeCtrl::GetTreeItem(const char *nodeId, wxTreeItemId idParent, wxTreeItemIdValue cookie)
{
    if (! idParent.IsOk())
        return NULL;

    wxSpinTreeItemData *treeData = (wxSpinTreeItemData*)GetItemData(idParent);
    if (treeData && treeData->m_pNode.valid())
    {
        if (strcmp(treeData->m_pNode->id->s_name, nodeId) == 0)
        {
            return idParent;
        }
    }

    if (ItemHasChildren(idParent))
    {
        wxTreeItemId child;
        for (child = GetFirstChild(idParent, cookie); child.IsOk(); child = GetNextChild(idParent, cookie))
        {
            wxTreeItemId targetItem = GetTreeItem(nodeId, child, cookie);
            if (targetItem.IsOk())
                return targetItem;
        }
    }
    return GetTreeItem(nodeId, GetNextSibling(idParent), cookie);
}

bool ClassBrowser::RecursiveSearch(const wxString& search, wxTreeCtrl* tree, const wxTreeItemId& parent, wxTreeItemId& result)
{
    if (!parent.IsOk() || !tree)
        return false;

    // first check the parent item
    if (FoundMatch(search, tree, parent))
    {
        result = parent;
        return true;
    }

    wxTreeItemIdValue cookie;
    wxTreeItemId child = tree->GetFirstChild(parent, cookie);

    if (!child.IsOk())
        return RecursiveSearch(search, tree, FindNext(search, tree, parent), result);

    while (child.IsOk())
    {
        if (FoundMatch(search, tree, child))
        {
            result = child;
            return true;
        }
        if (tree->ItemHasChildren(child))
        {
            if (RecursiveSearch(search, tree, child, result))
                return true;
        }
        child = tree->GetNextChild(parent, cookie);
    }

    return RecursiveSearch(search, tree, FindNext(search, tree, parent), result);
}

//---------------------------------------------------------
bool CData_Source_PgSQL::Source_Drop(const wxTreeItemId &Item)
{
	static	wxString	Username = "postgres", Password = "postgres";

	CData_Source_PgSQL_Data	*pData	= Item.IsOk() ? (CData_Source_PgSQL_Data *)GetItemData(Item) : NULL; if( pData == NULL )	return( false );

	if( !DLG_Login(Username, Password, _TL("Drop Database")) )
	{
		return( false );
	}

	pData->Set_Username(Username);
	pData->Set_Password(Password);

	if( pData->Get_Type() == TYPE_SOURCE && pData->is_Connected() )
	{
		RUN_MODULE(DB_PGSQL_DB_Drop, true,	// CDatabase_Drop
				SET_PARAMETER("PG_HOST", pData->Get_Host    ())
			&&	SET_PARAMETER("PG_PORT", pData->Get_Port    ())
			&&	SET_PARAMETER("PG_NAME", pData->Get_DBName  ())
			&&	SET_PARAMETER("PG_USER", pData->Get_Username())
			&&	SET_PARAMETER("PG_PWD" , pData->Get_Password())
		);

		return( bResult );
	}

	return( false );
}

void PanelObjectList::RenameObject(wxTreeItemId id, const char* desc)
{
    if( id.IsOk() )
    {
        m_pTree_Objects->SetItemText( id, desc );
    }
}

wxTreeItemId luProjTree::findItemByData(const wxTreeItemId& parent, const wxString& data)
{
	if (!parent.IsOk()) return parent;

	ItemData* item = dynamic_cast<ItemData*>(GetItemData(parent));
	if (item && item->GetName() == data)
		return parent;

	if (item) gkPrintf("%s", (const char*)item->GetName());

	if (HasChildren(parent))
	{
		wxTreeItemIdValue cookie;
		wxTreeItemId item = GetFirstChild(parent, cookie);
		while (item.IsOk())
		{
			wxTreeItemId find = findItemByData(item, data); //find is item self or children.
			if (find.IsOk()) return find;

			item = GetNextChild(item, cookie);
		}
	}

	return wxTreeItemId(); //not found
}

void DebuggerTree::ShowMenu(wxTreeItemId id, const wxPoint& pt)
{
    wxString caption;
    wxMenu menu(wxEmptyString);

    // if we right-clicked on a pointer, add a "dereference pointer" entry
    wxString itemtext = m_pTree->GetItemText(id);
    if (itemtext.Find(_T('*')) != wxNOT_FOUND)
    {
        menu.Append(idDereferenceValue, wxString::Format(_("Dereference pointer '%s'"), itemtext.BeforeFirst(_T('=')).c_str()));
        menu.AppendSeparator();
    }

    // add watch always visible
    menu.Append(idAddWatch, _("&Add watch"));
    menu.Append(idWatchThis, _("Watch '*&this'"));

    // we have to have a valid id for the following to be enabled
    WatchTreeData* data = dynamic_cast<WatchTreeData*>(m_pTree->GetItemData(id));
    if (id.IsOk() && // valid item
        data && data->m_pWatch) // *is* a watch
    {
        menu.Append(idEditWatch, _("&Edit watch"));
        menu.Append(idDeleteWatch, _("&Delete watch"));
    }
    menu.AppendSeparator();
    menu.Append(idChangeValue, _("&Change value..."));
    menu.AppendSeparator();
    menu.Append(idLoadWatchFile, _("&Load watch file"));
    menu.Append(idSaveWatchFile, _("&Save watch file"));
    menu.AppendSeparator();
    menu.Append(idDeleteAllWatches, _("Delete all watches"));

    PopupMenu(&menu, pt);
}

void BundlePane::OnMenuExport(wxCommandEvent& WXUNUSED(event)) {
	const wxTreeItemId selItem = m_bundleTree->GetSelection();
	if (!selItem.IsOk()) return;
	
	// Get the item name
	const BundleItemData* data = (BundleItemData*)m_bundleTree->GetItemData(selItem);
	wxString name;
	if (data->IsBundle()) {
		const wxFileName bundlePath = m_plistHandler.GetBundlePath(data->m_bundleId);
		name = bundlePath.GetDirs().Last();
	}
	else {
		const wxFileName bundlePath = m_plistHandler.GetBundleItemPath(data->m_type, data->m_bundleId, data->m_itemId);
		name = bundlePath.GetFullName();
	}

	// Get destination path from user
	const wxString msg = data->IsBundle() ? _("Export Bundle as..") : _("Export Bundle Item as");
	wxFileDialog dlg(this, msg, wxEmptyString, name, wxFileSelectorDefaultWildcardStr, wxFD_SAVE);
	if (dlg.ShowModal() != wxID_OK) return;
	const wxString path = dlg.GetPath();
	if (path.empty()) return;

	// Export the item
	if (data->IsBundle()) {
		wxFileName dstPath;
		dstPath.AssignDir(path);
		m_plistHandler.ExportBundle(dstPath, data->m_bundleId);
	}
	else m_plistHandler.ExportBundleItem(path, data->m_type, data->m_bundleId, data->m_itemId);
}