C++ IndexOf函数代码示例

void
EditListView::MouseDown(BPoint where)
{
	BListView::MouseDown(where);

	int32 index = IndexOf(where);
	EditableListItem* handler = dynamic_cast<EditableListItem*>(ItemAt(index));
	if (handler == NULL)
		return;

	fLastMouseDown = handler;
	handler->MouseDown(where);
	SetMouseEventMask(B_POINTER_EVENTS);
}

/**
 @return 	0 or a positive integer if a plugin was released and deleted, otherwise KErrNotFound
 @internalComponent
 @released
 */
TInt CSusUtilServer::UnLoadUtilityPluginL(TSsmSupInfo& aSupInfo)
	{
	RLibrary lib;
	SusPluginLoader::LoadDllFileLC(lib, aSupInfo); // open handle on CleanupStack
	const TInt index = IndexOf(lib, aSupInfo.NewLOrdinal());
	if( index > KErrNotFound )
		{
		CSusPluginFrame* frame = iLoadedPlugins[index];
		iLoadedPlugins.Remove(index);
		delete frame;
		}
	CleanupStack::PopAndDestroy(&lib);
	return index;
	}

void Manager::ExecuteNonModal()
{
	_MANAGER(CleverSysLog clv(L"Manager::ExecuteNonModal ()"));
	_MANAGER(SysLog(L"ExecutedFrame=%p, InsertedFrame=%p, DeletedFrame=%p",ExecutedFrame, InsertedFrame, DeletedFrame));
	Frame *NonModal=InsertedFrame?InsertedFrame:(ExecutedFrame?ExecutedFrame:ActivatedFrame);

	if (!NonModal)
	{
		return;
	}

	/* $ 14.05.2002 SKV
	  Положим текущий фрэйм в список "родителей" полумодальных фрэймов
	*/
	//Frame *SaveFrame=CurrentFrame;
	//AddSemiModalBackFrame(SaveFrame);
	int NonModalIndex=IndexOf(NonModal);

	if (-1==NonModalIndex)
	{
		InsertedFrame=NonModal;
		ExecutedFrame=nullptr;
		InsertCommit();
		InsertedFrame=nullptr;
	}
	else
	{
		ActivateFrame(NonModalIndex);
	}

	//Frame* ModalStartLevel=NonModal;
	for (;;)
	{
		Commit();

		if (CurrentFrame!=NonModal || EndLoop)
		{
			break;
		}

		ProcessMainLoop();
	}

	//ExecuteModal(NonModal);
	/* $ 14.05.2002 SKV
	  ... и уберём его же.
	*/
	//RemoveSemiModalBackFrame(SaveFrame);
}

/*****************************************************************************
 * DragSortableListView::MouseMoved
 *****************************************************************************/
void
DragSortableListView::MouseMoved(BPoint where, uint32 transit, const BMessage *msg)
{
    if ( msg && ( msg->what == B_SIMPLE_DATA || msg->what == MSG_SOUNDPLAY ) )
    {
        bool replaceAll = !msg->HasPointer("list") && !(modifiers() & B_SHIFT_KEY);
        switch ( transit )
        {
            case B_ENTERED_VIEW:
                // remember drag message
                // this is needed to react on modifier changes
                fDragMessageCopy = *msg;
            case B_INSIDE_VIEW:
            {
                if ( replaceAll )
                {
                    BRect r( Bounds() );
                    r.bottom--;    // compensate for scrollbar offset
                    _SetDropAnticipationRect( r );
                    fDropIndex = -1;
                }
                else
                {
                    // offset where by half of item height
                    BRect r( ItemFrame( 0 ) );
                    where.y += r.Height() / 2.0;
    
                    int32 index = IndexOf( where );
                    if ( index < 0 )
                        index = CountItems();
                    _SetDropIndex( index );
                }
                break;
            }
            case B_EXITED_VIEW:
                // forget drag message
                fDragMessageCopy.what = 0;
            case B_OUTSIDE_VIEW:
                _RemoveDropAnticipationRect();
                break;
        }
    }
    else
    {
        _RemoveDropAnticipationRect();
        BListView::MouseMoved(where, transit, msg);
        fDragMessageCopy.what = 0;
    }
}

/*
 * Finds the following sibling of aNode and returns it. If a sibling
 * is found, mCurrentNode is set to that node.
 * @param aNode     Node to start search at.
 * @param aReversed Reverses search to find the previous sibling
 *                  instead of next.
 * @param aIndexPos Position of aNode in mPossibleIndexes.
 * @param _retval   Returned node. Null if no sibling is found
 * @returns         Errorcode
 */
nsresult
nsTreeWalker::NextSiblingOf(nsINode* aNode,
                            PRBool aReversed,
                            PRInt32 aIndexPos,
                            nsINode** _retval)
{
    nsresult rv;
    nsCOMPtr<nsINode> node = aNode;
    PRInt16 filtered;
    PRInt32 childNum;

    if (node == mRoot) {
        *_retval = nsnull;
        return NS_OK;
    }

    while (1) {
        nsCOMPtr<nsINode> parent = node->GetNodeParent();

        if (!parent)
            break;

        childNum = IndexOf(parent, node, aIndexPos);
        NS_ENSURE_TRUE(childNum >= 0, NS_ERROR_UNEXPECTED);

        // Search siblings
        rv = ChildOf(parent, childNum, aReversed, aIndexPos, _retval);
        NS_ENSURE_SUCCESS(rv, rv);

        if (*_retval)
            return NS_OK;

        // Is parent the root?
        if (parent == mRoot)
            break;

        // Is parent transparent in filtered view?
        rv = TestNode(parent, &filtered);
        NS_ENSURE_SUCCESS(rv, rv);
        if (filtered == nsIDOMNodeFilter::FILTER_ACCEPT)
            break;

        node = parent;
        aIndexPos = aIndexPos < 0 ? -1 : aIndexPos-1;
    }

    *_retval = nsnull;
    return NS_OK;
}

void
SearchListView::ItemInvoked(void)
{
	BIntegerField* pageField = (BIntegerField*)CurrentSelection()->GetField(0);

    if (pageField == nullptr)
        return;
	
	BMessage msg(MSG_HIGHLIGHT_RECT);
	msg.AddInt32("page", pageField->Value() - 1);
	msg.AddRect("rect", fRectVec[IndexOf(CurrentSelection())]);
    Window()->PostMessage(&msg);
    
    BColumnListView::ItemInvoked();	
}

void
PrefListView::MessageReceived(BMessage* msg)
{
	switch (msg->what) {
		case 'ITEM':
		{
			puts("We have a winner, supposably ;-)");
			BPoint dropzone;
			msg->FindPoint("_drop_point_", &dropzone);
			dropzone = ConvertFromScreen(dropzone);

			int32 i, nr;
			msg->FindInt32("Item", &i);
			msg->FindInt32("Item_nr", &nr);

			XmlNode* Item = (XmlNode*)i;
			XmlNode* toItem = dynamic_cast<XmlNode*>(ItemAt(IndexOf(dropzone)));

			// Only proceed if valid
			if (toItem && Item && toItem!=Item) {
				XmlNode* parent = Item->Parent();

				uint32 index = parent->IndexOf(Item);
				uint32 toIndex = toItem->Parent()->IndexOf(toItem);
				if (index<toIndex)
					toIndex++;

				parent->DetachChild(index);

				if (toItem->Attribute(OPML_URL)!=NULL) {
					toItem->Parent()->AddChild(Item, toIndex);
				}
				else {
					toItem->AddChild(Item,0);
				}

				MakeEmpty();
				BuildView(root);

				Invalidate();
			}
		}
		break;

		default:
			BOutlineListView::MessageReceived(msg);
	}
}

//! Returns false, if item is NULL or memory is insufficient, true otherwise.
bool
ResourcesContainer::AddResource(ResourceItem *item, int32 index, bool replace)
{
	bool result = false;
	if (item) {
		// replace an item with the same type and id
		if (replace)
			delete RemoveResource(IndexOf(item->Type(), item->ID()));
		int32 count = CountResources();
		if (index < 0 || index > count)
			index = count;
		result = fResources.AddItem(item, count);
		SetModified(true);
	}
	return result;
}

bool
OverscrollHandoffChain::CanBePanned(const AsyncPanZoomController* aApzc) const
{
  // Find |aApzc| in the handoff chain.
  uint32_t i = IndexOf(aApzc);

  // See whether any APZC in the handoff chain starting from |aApzc|
  // has room to be panned.
  for (uint32_t j = i; j < Length(); ++j) {
    if (mChain[j]->IsPannable()) {
      return true;
    }
  }

  return false;
}

void ff::SmallDict::Set(ff::StringRef key, Value *value)
{
	if (value == nullptr)
	{
		Remove(key);
		return;
	}

	size_t index = IndexOf(key);
	if (index != INVALID_SIZE)
	{
		SetAt(index, value);
		return;
	}

	Add(key, value);
}

void DraggableListView::MouseDown(BPoint point) {
	uint32 buttons = Looper()->CurrentMessage()->FindInt32("buttons");
	int32 index = IndexOf(point);
	if (buttons & B_SECONDARY_MOUSE_BUTTON && index >= 0) {
		Select(index);
		if (list_type == filter) {
			BPopUpMenu popup_menu("popup_menu", false, false);
			popup_menu.SetFont(be_plain_font);
			BMessage* del_msg = new BMessage(SM_REMOVE_FILTER);
			del_msg->AddInt32("filter_id", ((FilterItem*)ItemAt(index))->FilterID());
			BMessage* help_msg = new BMessage(SM_HELP_REQUESTED);
			help_msg->AddString("addon_name", ((FilterItem*)ItemAt(index))->Text());
			popup_menu.AddItem(new BMenuItem("Delete", del_msg));
			popup_menu.AddItem(new BMenuItem("Add-on Help"B_UTF8_ELLIPSIS, help_msg));
			BMenuItem* item = popup_menu.Go(ConvertToScreen(point));
			if (item != NULL) {
				if (strcmp(item->Label(),"Delete") == 0) {
					be_app_messenger.SendMessage(item->Message());
					delete RemoveItem(index);
				if (strcmp(item->Label(),"Add-on Help"B_UTF8_ELLIPSIS) == 0)
					Window()->PostMessage(item->Message());
				}
			}
		} else {
			BView* active_list = Window()->FindView("active_list");
			if (active_list != NULL) {
				BPopUpMenu popup_menu("popup_menu", false, false);
				popup_menu.SetFont(be_plain_font);
				BMessage* add_msg = new BMessage(SM_DRAG_FILTER);
				add_msg->AddString("filter_name", ((BStringItem*)ItemAt(index))->Text());
				BMessage* help_msg = new BMessage(SM_HELP_REQUESTED);
				help_msg->AddString("addon_name", ((BStringItem*)ItemAt(index))->Text());
				popup_menu.AddItem(new BMenuItem("Add", add_msg));
				popup_menu.AddItem(new BMenuItem("Add-on Help"B_UTF8_ELLIPSIS, help_msg));
				BMenuItem* item = popup_menu.Go(ConvertToScreen(point));
				if (item != NULL) {
					if (strcmp(item->Label(),"Add") == 0)
						active_list->MessageReceived(item->Message());
					if (strcmp(item->Label(),"Add-on Help"B_UTF8_ELLIPSIS) == 0)
						Window()->PostMessage(item->Message());
				}
			}
		}
	}
	BListView::MouseDown(point);
}

/*****************************************************************************
 * PlaylistView::CopyItems
 *****************************************************************************/
void
PlaylistView::CopyItems( BList& items, int32 toIndex )
{
#if 0
    DeselectAll();
    // we remove the items while we look at them, the insertion index is decreased
    // when the items index is lower, so that we insert at the right spot after
    // removal
    if ( fVlcWrapper->PlaylistLock() )
    {
        BList clonedItems;
        int32 count = items.CountItems();
        // remember currently playing item
        BListItem* playingItem = _PlayingItem();
        // collect cloned item pointers
        for ( int32 i = 0; i < count; i++ )
        {
            int32 index = IndexOf( (BListItem*)items.ItemAt( i ) );
            void* item = fVlcWrapper->PlaylistItemAt( index );
            void* cloned = fVlcWrapper->PlaylistCloneItem( item );
            if ( cloned && !clonedItems.AddItem( cloned ) )
                free( cloned );
            
        }
        // add cloned items at index
        int32 index = toIndex;
        for ( int32 i = 0; void* item = clonedItems.ItemAt( i ); i++ )
        {
            if ( fVlcWrapper->PlaylistAddItem( item, index ) )
                // next items will be inserted after this one
                index++;
            else
                free( item );
        }
        // update GUI
        DragSortableListView::CopyItems( items, toIndex );
        // restore currently playing item
        _SetPlayingIndex( playingItem );
        // update interface (in case it isn't playing,
        // there is a chance that it needs to update)
        fMainWindow->PostMessage( MSG_UPDATE );
        fVlcWrapper->PlaylistUnlock();
    }
#endif
}

int SudokuGrid::Value(int row, int column) const noexcept
{
    int index = IndexOf(row, column);
    int result = NoValues;

    for (int i = 0; i < 9; ++i)
    {
        if (!_banned.test(index + i))
        {
            if (result == NoValues)
                result = i;
            else
                return MultipleValues;
        }
    }

    return result;
}

void CMessageBox::AddButton(const CString & strCaption, UINT id, bool bEnabled/*=true*/)
{
#ifdef _DEBUG
	ASSERT(-1==IndexOf(id));
	for(unsigned int i=0;i<ButtonCount();i++){
		if(0==m_arBInfo[i].m_strCaption.Compare(strCaption)){
			ASSERT(FALSE);
		}
	}
#endif
	if(bEnabled){
		if(IDCANCEL==id || (IDOK==id && -1==m_nEscapeButton)){
			m_nEscapeButton=ButtonCount();
		} 
	}
	CButtonInfo info(id,bEnabled,strCaption);
	m_arBInfo.Add(info);
}

void
AudioListView::MessageReceived(BMessage* message)
{
	switch (message->what) {
		case kDraggedItem:
		{
			BPoint dropPoint = message->DropPoint();
			int32 dropIndex = IndexOf(ConvertFromScreen(dropPoint));
			int32 count = CountItems();
			if (dropIndex < 0 || dropIndex > count)
				dropIndex = count;

			BList indices;
			GetSelectedItems(indices);
			MoveItems(indices, dropIndex);

			RenumberTracks();
			break;
		}
		case kDeleteItem:
		{
			if (!IsEmpty()) {
				RemoveSelected();

				if (!IsEmpty())
					RenumberTracks();
			}
			// fake to update button state and calculate SizeBar
			Looper()->PostMessage(B_REFS_RECEIVED);
			break;
		}
		case kPopupClosed:
		{
			fShowingPopUpMenu = false;
			break;
		}
		default:
		{
			BListView::MessageReceived(message);
			break;
		}
	}
}