C++ Panel::GetVPanel方法代码示例

void CEditorRoot::OnAskPageClose( KeyValues *pKV )
{
	Panel *pPageTab = (Panel*)pKV->GetPtr( "PageTab" );
	CNodeView *pGraph = GetFlowGraph( pKV->GetInt( "TabIndex" ) );

	if ( pPageTab == NULL ||
		pGraph == NULL )
	{
		Assert( 0 );
		return;
	}

	ConfirmTabClose( pPageTab->GetVPanel() );

#if 0
	if ( !m_bWarnOnClose || !pGraph->IsSaveDirty() )
		ConfirmTabClose( pPageTab->GetVPanel() );
	else
	{
		const char *pszShadername = pGraph->GetShadername();

		char shortName[MAX_PATH*4];

		KeyValues *pKVResponse_Yes = new KeyValues( "ResponseGraphSave", "DoSave", 1 );
		KeyValues *pKVResponse_No = new KeyValues( "ResponseGraphSave", "DoSave", 0 );

		if ( pszShadername == NULL )
		{
			pKVResponse_No->deleteThis();
			pKVResponse_No = new KeyValues( "ResponseGraphSave", "DoSave", 2 );
		}
		else
		{
			Q_FileBase( pszShadername, shortName, sizeof( shortName ) );
		}

		pKVResponse_Yes->SetPtr( "PageTab", pPageTab );
		pKVResponse_No->SetPtr( "PageTab", pPageTab );
		pKVResponse_Yes->SetPtr( "Graph", pGraph );
		pKVResponse_No->SetPtr( "Graph", pGraph );

		vgui::PromptSimple *prompt = new vgui::PromptSimple( this, "Unsaved changes" );
		prompt->MoveToCenterOfScreen();

		if ( pszShadername != NULL )
			prompt->SetText( VarArgs( "The graph %s has unsaved changes. Save now?", shortName ) );
		else
			prompt->SetText( "This graph has not been saved yet, are you sure that you want to close it?" );

		prompt->AddButton( "Yes", pKVResponse_Yes );
		prompt->AddButton( "No", pKVResponse_No );
		prompt->MakeReadyForUse();
		prompt->InvalidateLayout( true, true );
	}
#endif
}

//-----------------------------------------------------------------------------
// Purpose: catches the opencontextmenu event
//-----------------------------------------------------------------------------
void PropertySheet::OnOpenContextMenu( KeyValues *params )
{
	// tell parent
	KeyValues *kv = params->MakeCopy();
	PostActionSignal( kv );
	Panel *page = reinterpret_cast< Panel * >( params->GetPtr( "page" ) );
	if ( page )
	{
		PostMessage( page->GetVPanel(), params->MakeCopy() );
	}
}

void CEditorRoot::OnResponseGraphSave( KeyValues *pKV )
{
	int iResponse = pKV->GetInt( "DoSave" );
	const bool bSave = iResponse == 1;
	const bool bAbort = iResponse == 2;

	if ( bAbort )
		return;

	Panel *pPageTab = (Panel*)pKV->GetPtr( "PageTab" );
	CNodeView *pGraph = (CNodeView*)pKV->GetPtr( "Graph" );

	if ( bSave && pGraph != NULL )
		pGraph->SaveToFile();

	ConfirmTabClose( pPageTab->GetVPanel() );
}

//-----------------------------------------------------------------------------
// Purpose: Get the panel that currently has keyfocus
//-----------------------------------------------------------------------------
VPANEL EditablePanel::GetCurrentKeyFocus()
{
	Panel *focus = m_NavGroup.GetCurrentFocus();
	if (focus == this)
		return NULL;

	if (focus)
	{
		if (focus->IsPopup())
			return BaseClass::GetCurrentKeyFocus();

		// chain down the editpanel hierarchy
		VPANEL subFocus = focus->GetCurrentKeyFocus();
		if (subFocus)
			return subFocus;

		// hit a leaf panel, return that
		return focus->GetVPanel();
	}
	return BaseClass::GetCurrentKeyFocus();
}

//-----------------------------------------------------------------------------
// Purpose: Sets the focus to the previous panel in the tab order
// Input  : *panel - panel currently with focus
//-----------------------------------------------------------------------------
bool FocusNavGroup::RequestFocusPrev(VPANEL panel)
{
	if(panel==NULL)
		return false;

	_currentFocus = NULL;
	int newPosition = 9999999;
	if (panel)
	{
		newPosition = ipanel()->GetTabPosition(panel);
	}

	bool bFound = false;
	bool bRepeat = true;
	Panel *best = NULL;
	while (1)
	{
		newPosition--;
		if (newPosition > 0)
		{
			int bestPosition = 0;

			// look for the next tab position
			for (int i = 0; i < _mainPanel->GetChildCount(); i++)
			{
				Panel *child = _mainPanel->GetChild(i);
				if (child && child->IsVisible() && child->IsEnabled() && child->GetTabPosition())
				{
					int tabPosition = child->GetTabPosition();
					if (tabPosition == newPosition)
					{
						// we've found the right tab
						best = child;
						bestPosition = newPosition;

						// don't loop anymore since we've found the correct panel
						break;
					}
					else if (tabPosition < newPosition && tabPosition > bestPosition)
					{
						// record the match since this is the closest so far
						bestPosition = tabPosition;
						best = child;
					}
				}
			}

			if (!bRepeat)
				break;

			if (best)
				break;
		}
		else
		{
			// reset new position for next loop
			newPosition = 9999999;
		}

		// haven't found an item

		if (!_topLevelFocus)
		{
			// check to see if we should push the focus request up
			if (_mainPanel->GetVParent() && _mainPanel->GetVParent() != surface()->GetEmbeddedPanel())
			{
				// we're not a top level panel, so forward up the request instead of looping
				if (ipanel()->RequestFocusPrev(_mainPanel->GetVParent(), _mainPanel->GetVPanel()))
				{
					bFound = true;
					SetCurrentDefaultButton(NULL);
					break;
				}
			}
		}

		// not found an item, loop back
		newPosition = 9999999;
		bRepeat = false;
	}

	if (best)
	{
		_currentFocus = best->GetVPanel();
		best->RequestFocus(-1);
		bFound = true;

        if (!CanButtonBeDefault(best->GetVPanel()))
        {
            if (_defaultButton)
            {
                SetCurrentDefaultButton(_defaultButton);
            }
			else
			{
				SetCurrentDefaultButton(NULL);
//.........这里部分代码省略.........

//-----------------------------------------------------------------------------
// Purpose: Sets the focus to the previous panel in the tab order
// Input  : *panel - panel currently with focus
//-----------------------------------------------------------------------------
bool FocusNavGroup::RequestFocusNext(VPANEL panel)
{
	// basic recursion guard, in case user has set up a bad focus hierarchy
	static int stack_depth = 0;
	stack_depth++;

	_currentFocus = NULL;
	int newPosition = 0;
	if (panel)
	{
		newPosition = ipanel()->GetTabPosition(panel);
	}

	bool bFound = false;
	bool bRepeat = true;
	Panel *best = NULL;
	while (1)
	{
		newPosition++;
		int bestPosition = 999999;

		// look for the next tab position
		for (int i = 0; i < _mainPanel->GetChildCount(); i++)
		{
			Panel *child = _mainPanel->GetChild(i);
			if ( !child )
				continue;

			if (child && child->IsVisible() && child->IsEnabled() && child->GetTabPosition())
			{
				int tabPosition = child->GetTabPosition();
				if (tabPosition == newPosition)
				{
					// we've found the right tab
					best = child;
					bestPosition = newPosition;

					// don't loop anymore since we've found the correct panel
					break;
				}
				else if (tabPosition > newPosition && tabPosition < bestPosition)
				{
					// record the match since this is the closest so far
					bestPosition = tabPosition;
					best = child;
				}
			}
		}

		if (!bRepeat)
			break;

		if (best)
			break;

		// haven't found an item

		// check to see if we should push the focus request up
		if (!_topLevelFocus)
		{
			if (_mainPanel->GetVParent() && _mainPanel->GetVParent() != surface()->GetEmbeddedPanel())
			{
				// we're not a top level panel, so forward up the request instead of looping
				if (stack_depth < 15)
				{
					if (ipanel()->RequestFocusNext(_mainPanel->GetVParent(), _mainPanel->GetVPanel()))
					{
						bFound = true;
						SetCurrentDefaultButton(NULL);
						break;
					}

					// if we find one then we break, otherwise we loop
				}
			}
		}
		
		// loop back
		newPosition = 0;
		bRepeat = false;
	}

	if (best)
	{
		_currentFocus = best->GetVPanel();
		best->RequestFocus(1);
		bFound = true;

        if (!CanButtonBeDefault(best->GetVPanel()))
        {
            if (_defaultButton)
			{
                SetCurrentDefaultButton(_defaultButton);
			}
			else
			{
//.........这里部分代码省略.........