自学教程：C++ DeselectAll函数代码示例

/**	Mouse click scenarios.*/void AlbumView::MouseDown(BPoint where){    // This is an event hook so there must be a Looper.	BMessage *message = Window()->CurrentMessage();    int32 mods = 0, clicks = 0, buttons=0;    message->FindInt32("modifiers", &mods);    message->FindInt32("clicks", &clicks);    message->FindInt32("buttons", &buttons);		    // Scale back.	where.x /= fZoom;	where.y /= fZoom;		int32 i = IndexOf(&where);	int32 changes = 0;	if (i >= 0) {		AlbumItem *item = ItemAt(i);				// double-clicks are handled later in MouseUp()		fDoubleClick = (fLastSelected == i && clicks == 2 && (buttons & B_PRIMARY_MOUSE_BUTTON));        fMayDrag = !fDoubleClick && (buttons & B_PRIMARY_MOUSE_BUTTON);			        if (mods & B_SHIFT_KEY)         	// Block selection			changes += SelectBlock(fLastSelected, i, !item->IsSelected());        else if (mods & B_COMMAND_KEY)        	// Modify selection        	changes += Select(i, 1, !item->IsSelected());		else {			// Normal selection			if (!item->IsSelected())				changes += DeselectAll();        	changes += Select(i);		}        fLastWhere = where;        fLastSelected = i;    }    else	   	changes += DeselectAll();	if (changes > 0) {		//PRINT(("selection changed/n"));    	SelectionChanged();    	if (!fDoubleClick && Message()) {			BMessage msg = *Message();			msg.AddInt32("buttons", buttons);    		msg.AddPoint("where", where);                	msg.AddInt32("index", fLastSelected);			Invoke(&msg);    	}	}        }

void CTDCTaskListCtrl::SetSelectedTasks(const CDWordArray& aTaskIDs, DWORD dwFocusedTaskID){	DeselectAll();	int nID = aTaskIDs.GetSize();	if (nID)	{		CTLSHoldResync hr(*this);						while (nID--)		{			DWORD dwTaskID = aTaskIDs[nID];			int nItem = FindTaskItem(dwTaskID);						if (nItem != -1)			{				BOOL bAnchor = (dwTaskID == dwFocusedTaskID);				DWORD dwState = LVIS_SELECTED;								if (bAnchor)				{					dwState |= LVIS_FOCUSED;					m_lcTasks.SetSelectionMark(nItem);					m_lcColumns.SetSelectionMark(nItem);				}								m_lcTasks.SetItemState(nItem, dwState, (LVIS_SELECTED | LVIS_FOCUSED));				m_lcColumns.SetItemState(nItem, dwState, (LVIS_SELECTED | LVIS_FOCUSED));			}		}	}}

BOOL CLibraryAlbumView::Select(DWORD nObject){	CRect rcClient, rcItem;	CLibraryAlbumTrack** pList = m_pList + m_nCount - 1;	int nItem = m_nCount;	for ( ; nItem ; nItem--, pList-- )	{		CLibraryAlbumTrack* pTrack = *pList;		if ( pTrack->m_nIndex == nObject ) break;	}	if ( nItem == 0 ) return FALSE;	m_pFocus = *pList;	DeselectAll( m_pFocus );	Select( m_pFocus );	Invalidate();	GetClientRect( &rcClient );	GetItemRect( m_pFocus, &rcItem );	if ( rcItem.top < rcClient.top )		ScrollBy( rcItem.top - rcClient.top );	else if ( rcItem.bottom > rcClient.bottom )		ScrollBy( rcItem.bottom - rcClient.bottom );	return TRUE;}

voidPrefListView::MouseDown(BPoint point){	BPoint cursor;	ulong m_buttons;		GetMouse(&cursor,&m_buttons);		if (!(m_buttons & 0x2))		BOutlineListView::MouseDown(point);	else {		// right mouse button is for popup only :-)				BMessage msg(MSG_LIST_POPUP);		msg.AddPoint("point", point);				int32 index = IndexOf(point);		msg.AddInt32("index", index);				if (index>0) {			DeselectAll();			Select(index);			InvalidateItem(index);		}		Window()->PostMessage( &msg );	}}

void BrushIconBox::SelectFirstBrush() {	if(tileset && tileset->size() > 0) {		DeselectAll();		brush_buttons[0]->SetValue(true);		EnsureVisible((size_t)0);	}}

void CLibraryTileView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags){	CSingleLock oLock( &Library.m_pSection );	if ( oLock.Lock( 200 ) )	{		if ( _istalnum( TCHAR( nChar ) ) )		{			iterator pStart = m_pFocus;			for ( int nLoop = 0; nLoop < 2; nLoop++ )			{				for ( iterator pChild = begin(); pChild != end(); ++pChild )				{					if ( pStart != end() )					{						if ( pStart == pChild )							pStart = end();					}					else if ( toupper( (*pChild)->GetTitle().GetAt( 0 ) ) == toupper( (int)nChar ) )					{						DeselectAll( m_pFocus = pChild );						Select( m_pFocus, TRI_TRUE );						Highlight( m_pFocus );						Invalidate();						return;					}				}			}		}	}	CLibraryView::OnChar( nChar, nRepCnt, nFlags );}

void TItemList::RemoveSelItems(TOnItemRemove on_remove){	if (mrYes==MessageDlg("Remove selected item(s)?", mtConfirmation, TMsgDlgButtons() << mbYes << mbNo, 0)){        on_remove 	= on_remove.empty()?OnItemRemoveEvent:on_remove;        VERIFY		(!on_remove.empty());        RStringVec sel_items;        if (GetSelected(sel_items)){            tvItems->IsUpdating = true; // LockUpdating нельзя            DeselectAll					();            tvItemsAfterSelectionChange	(0);            bool bSelChanged=false;            bool bRes=false;            for (RStringVecIt it=sel_items.begin(); it!=sel_items.end(); it++){                TElTreeItem* pNode	= FHelper.FindItem(tvItems,**it);                if (!FHelper.RemoveItem(tvItems,pNode,on_remove.empty()?OnItemRemoveEvent:on_remove)){                    SelectItem(**it,true,true,false);                    bSelChanged=true;                }else{                    bRes = true;                }            }            if (bSelChanged||bRes){                tvItemsAfterSelectionChange	(0);                if (bRes&&!OnModifiedEvent.empty())	OnModifiedEvent();             }            tvItems->IsUpdating 		= false;        }    }}

// MoveItemsvoidDragSortableListView::MoveItems(BList& items, int32 index){	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	BList removedItems;	int32 count = items.CountItems();	for (int32 i = 0; i < count; i++) {		BListItem* item = (BListItem*)items.ItemAt(i);		int32 removeIndex = IndexOf(item);		if (RemoveItem(item) && removedItems.AddItem((void*)item)) {			if (removeIndex < index)				index--;		}		// else ??? -> blow up	}	for (int32 i = 0;		 BListItem* item = (BListItem*)removedItems.ItemAt(i); i++) {		if (AddItem(item, index)) {			// after we're done, the newly inserted items will be selected			Select(index, true);			// next items will be inserted after this one			index++;		} else			delete item;	}}

BOOL CBrowseTreeCtrl::CleanItems(CBrowseTreeItem* pItem, DWORD nCookie, BOOL bVisible){	CSingleLock lRoot( &m_csRoot, TRUE );	CBrowseTreeItem** pChild = pItem->m_pList + pItem->m_nCount - 1;	BOOL bChanged = FALSE;	for ( int nChild = pItem->m_nCount ; nChild ; nChild--, pChild-- )	{		if ( (*pChild)->m_nCleanCookie != nCookie )		{			if ( m_pFocus == *pChild ) m_pFocus = NULL;			if ( (*pChild)->m_bSelected ) Select( *pChild, TS_FALSE, FALSE );			bChanged |= DeselectAll( NULL, *pChild, FALSE );			if ( bVisible )			{				m_nTotal -= (*pChild)->GetChildCount() + 1;				bChanged = TRUE;			}			delete *pChild;			MoveMemory( pChild, pChild + 1, 4 * ( pItem->m_nCount - nChild ) );			pItem->m_nCount--;		}	}	return bChanged;}

	void KeyHandlesSheet::OnCursorStillDown(const Input::Cursor& cursor)	{		if (cursor.isPressed) {			if (!mIsFrameSelecting) 			{				if (cursor.delta != Vec2F())					mIsFrameSelecting = true;			}						if (mIsFrameSelecting)			{				mSelectionFrame->enabled = true;				Vec2F current(mTimeline->WorldToLocal(cursor.position.x), mTree->GetLineNumber(cursor.position.y));				mSelectionRect.left = Math::Min(mBeginSelectPoint.x, current.x);				mSelectionRect.right = Math::Max(mBeginSelectPoint.x, current.x);				mSelectionRect.top = Math::Floor(Math::Min(mBeginSelectPoint.y, current.y));				mSelectionRect.bottom = Math::Ceil(Math::Max(mBeginSelectPoint.y, current.y));				DeselectAll();				for (auto handle : mBeginSelectHandles)					SelectHandle(handle);				for (auto handle : mHandles) {					Vec2F handlePos(handle->GetPosition().x, mTree->GetLineNumber(handle->GetScreenPosition().y));					if (handlePos.x > mSelectionRect.left && handlePos.x < mSelectionRect.right && handlePos.y > mSelectionRect.top && handlePos.y < mSelectionRect.bottom + 0.5f) {						SelectHandle(handle);					}				}			}		}	}

	voidPrefListView::BuildView(XmlNode *node, int level, BListItem* parent){	if (!node) {		puts("Rebuild mit NULL?!");		return;	}	int anz = node->Children();	//printf("BuildView: %s %d eintr
C++ Deserialize函数代码示例
C++ Deselect函数代码示例