listbox.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <vcl/builder.hxx>
#include <vcl/commandevent.hxx>
#include <vcl/event.hxx>
#include <vcl/toolkit/lstbox.hxx>
#include <vcl/settings.hxx>
#include <vcl/uitest/uiobject.hxx>
#include <sal/log.hxx>

#include <svdata.hxx>
#include <controldata.hxx>
#include <listbox.hxx>
#include <dndeventdispatcher.hxx>
#include <comphelper/lok.hxx>

#include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
#include <boost/property_tree/ptree.hpp>
#include <tools/json_writer.hxx>

ListBox::ListBox(WindowType nType)
    : Control(nType)
    , mpImplLB(nullptr)
{
    ImplInitListBoxData();
}

ListBox::ListBox( vcl::Window* pParent, WinBits nStyle ) : Control( WindowType::LISTBOX )
{
    ImplInitListBoxData();
    ImplInit( pParent, nStyle );
}

ListBox::~ListBox()
{
    disposeOnce();
}

void ListBox::dispose()
{
    CallEventListeners( VclEventId::ObjectDying );

    mpImplLB.disposeAndClear();
    mpFloatWin.disposeAndClear();
    mpImplWin.disposeAndClear();
    mpBtn.disposeAndClear();

    Control::dispose();
}

void ListBox::ImplInitListBoxData()
{
    mpFloatWin      = nullptr;
    mpImplWin       = nullptr;
    mpBtn           = nullptr;
    mnDDHeight      = 0;
    mnLineCount     = 0;
    m_nMaxWidthChars = -1;
    mbDDAutoSize    = true;
}

void ListBox::ImplInit( vcl::Window* pParent, WinBits nStyle )
{
    nStyle = ImplInitStyle( nStyle );
    if ( !(nStyle & WB_NOBORDER) && ( nStyle & WB_DROPDOWN ) )
        nStyle |= WB_BORDER;

    Control::ImplInit( pParent, nStyle, nullptr );

    css::uno::Reference< css::datatransfer::dnd::XDropTargetListener> xDrop = new DNDEventDispatcher(this);

    if( nStyle & WB_DROPDOWN )
    {
        sal_Int32 nLeft, nTop, nRight, nBottom;
        GetBorder( nLeft, nTop, nRight, nBottom );
        mnDDHeight = static_cast<sal_uInt16>(GetTextHeight() + nTop + nBottom + 4);

        if( IsNativeWidgetEnabled() &&
            IsNativeControlSupported( ControlType::Listbox, ControlPart::Entire ) )
        {
                ImplControlValue aControlValue;
                tools::Rectangle aCtrlRegion( Point( 0, 0 ), Size( 20, mnDDHeight ) );
                tools::Rectangle aBoundingRgn( aCtrlRegion );
                tools::Rectangle aContentRgn( aCtrlRegion );
                if( GetNativeControlRegion( ControlType::Listbox, ControlPart::Entire, aCtrlRegion,
                                            ControlState::ENABLED, aControlValue,
                                            aBoundingRgn, aContentRgn ) )
                {
                    sal_Int32 nHeight = aBoundingRgn.GetHeight();
                    if( nHeight > mnDDHeight )
                        mnDDHeight = static_cast<sal_uInt16>(nHeight);
                }
        }

        mpFloatWin = VclPtr<ImplListBoxFloatingWindow>::Create( this );
        if (!IsNativeControlSupported(ControlType::Pushbutton, ControlPart::Focus))
            mpFloatWin->RequestDoubleBuffering(true);
        mpFloatWin->SetAutoWidth( true );
        mpFloatWin->SetPopupModeEndHdl( LINK( this, ListBox, ImplPopupModeEndHdl ) );
        mpFloatWin->GetDropTarget()->addDropTargetListener(xDrop);

        mpImplWin = VclPtr<ImplWin>::Create( this, (nStyle & (WB_LEFT|WB_RIGHT|WB_CENTER))|WB_NOBORDER );
        mpImplWin->SetMBDownHdl( LINK( this, ListBox, ImplClickBtnHdl ) );
        mpImplWin->Show();
        mpImplWin->GetDropTarget()->addDropTargetListener(xDrop);
        mpImplWin->SetEdgeBlending(false);

        mpBtn = VclPtr<ImplBtn>::Create( this, WB_NOLIGHTBORDER | WB_RECTSTYLE );
        ImplInitDropDownButton( mpBtn );
        mpBtn->SetMBDownHdl( LINK( this, ListBox, ImplClickBtnHdl ) );
        mpBtn->Show();
        mpBtn->GetDropTarget()->addDropTargetListener(xDrop);
    }

    vcl::Window* pLBParent = this;
    if ( mpFloatWin )
        pLBParent = mpFloatWin;
    mpImplLB = VclPtr<ImplListBox>::Create( pLBParent, nStyle&(~WB_BORDER) );
    mpImplLB->SetSelectHdl( LINK( this, ListBox, ImplSelectHdl ) );
    mpImplLB->SetScrollHdl( LINK( this, ListBox, ImplScrollHdl ) );
    mpImplLB->SetCancelHdl( LINK( this, ListBox, ImplCancelHdl ) );
    mpImplLB->SetDoubleClickHdl( LINK( this, ListBox, ImplDoubleClickHdl ) );
    mpImplLB->SetFocusHdl( LINK( this, ListBox, ImplFocusHdl ) );
    mpImplLB->SetListItemSelectHdl( LINK( this, ListBox, ImplListItemSelectHdl ) );
    mpImplLB->SetPosPixel( Point() );
    mpImplLB->SetEdgeBlending(false);
    mpImplLB->Show();

    mpImplLB->GetDropTarget()->addDropTargetListener(xDrop);

    if ( mpFloatWin )
    {
        mpFloatWin->SetImplListBox( mpImplLB );
        mpImplLB->SetSelectionChangedHdl( LINK( this, ListBox, ImplSelectionChangedHdl ) );
    }
    else
        mpImplLB->GetMainWindow()->AllowGrabFocus( true );

    SetCompoundControl( true );
}

WinBits ListBox::ImplInitStyle( WinBits nStyle )
{
    if ( !(nStyle & WB_NOTABSTOP) )
        nStyle |= WB_TABSTOP;
    if ( !(nStyle & WB_NOGROUP) )
        nStyle |= WB_GROUP;
    return nStyle;
}

IMPL_LINK_NOARG(ListBox, ImplSelectHdl, LinkParamNone*, void)
{
    bool bPopup = IsInDropDown();
    if( IsDropDownBox() )
    {
        if( !mpImplLB->IsTravelSelect() )
        {
            mpFloatWin->EndPopupMode();
            mpImplWin->GrabFocus();
        }

        mpImplWin->SetItemPos( GetSelectedEntryPos() );
        mpImplWin->SetString( GetSelectedEntry() );
        if( mpImplLB->GetEntryList()->HasImages() )
        {
            Image aImage = mpImplLB->GetEntryList()->GetEntryImage( GetSelectedEntryPos() );
            mpImplWin->SetImage( aImage );
        }
        mpImplWin->Invalidate();
    }

    if ( ( !IsTravelSelect() || mpImplLB->IsSelectionChanged() ) || ( bPopup && !IsMultiSelectionEnabled() ) )
        Select();
}

IMPL_LINK( ListBox, ImplFocusHdl, sal_Int32, nPos, void )
{
    CallEventListeners( VclEventId::ListboxFocus, reinterpret_cast<void*>(nPos) );
}

IMPL_LINK_NOARG( ListBox, ImplListItemSelectHdl, LinkParamNone*, void )
{
    CallEventListeners( VclEventId::DropdownSelect );
}

IMPL_LINK_NOARG(ListBox, ImplScrollHdl, ImplListBox*, void)
{
    CallEventListeners( VclEventId::ListboxScrolled );
}

IMPL_LINK_NOARG(ListBox, ImplCancelHdl, LinkParamNone*, void)
{
    if( IsInDropDown() )
        mpFloatWin->EndPopupMode();
}

IMPL_LINK( ListBox, ImplSelectionChangedHdl, sal_Int32, nChanged, void )
{
    if ( mpImplLB->IsTrackingSelect() )
        return;

    const ImplEntryList* pEntryList = mpImplLB->GetEntryList();
    if ( pEntryList->IsEntryPosSelected( nChanged ) )
    {
        // FIXME? This should've been turned into an ImplPaintEntry some time ago...
        if ( nChanged < pEntryList->GetMRUCount() )
            nChanged = pEntryList->FindEntry( pEntryList->GetEntryText( nChanged ) );
        mpImplWin->SetItemPos( nChanged );
        mpImplWin->SetString( mpImplLB->GetEntryList()->GetEntryText( nChanged ) );
        if( mpImplLB->GetEntryList()->HasImages() )
        {
            Image aImage = mpImplLB->GetEntryList()->GetEntryImage( nChanged );
            mpImplWin->SetImage( aImage );
        }
    }
    else
    {
        mpImplWin->SetItemPos( LISTBOX_ENTRY_NOTFOUND );
        mpImplWin->SetString( OUString() );
        Image aImage;
        mpImplWin->SetImage( aImage );
    }
    mpImplWin->Invalidate();
}

IMPL_LINK_NOARG(ListBox, ImplDoubleClickHdl, ImplListBoxWindow*, void)
{
    DoubleClick();
}

IMPL_LINK_NOARG(ListBox, ImplClickBtnHdl, void*, void)
{
    if( mpFloatWin->IsInPopupMode() )
        return;

    CallEventListeners( VclEventId::DropdownPreOpen );
    mpImplWin->GrabFocus();
    mpBtn->SetPressed( true );
    mpFloatWin->StartFloat( true );
    CallEventListeners( VclEventId::DropdownOpen );

    ImplClearLayoutData();
    if( mpImplLB )
        mpImplLB->GetMainWindow()->ImplClearLayoutData();
    if( mpImplWin )
        mpImplWin->ImplClearLayoutData();
}

IMPL_LINK_NOARG(ListBox, ImplPopupModeEndHdl, FloatingWindow*, void)
{
    if( mpFloatWin->IsPopupModeCanceled() )
    {
        if ( ( mpFloatWin->GetPopupModeStartSaveSelection() != LISTBOX_ENTRY_NOTFOUND )
                && !IsEntryPosSelected( mpFloatWin->GetPopupModeStartSaveSelection() ) )
        {
            mpImplLB->SelectEntry( mpFloatWin->GetPopupModeStartSaveSelection(), true );
            bool bTravelSelect = mpImplLB->IsTravelSelect();
            mpImplLB->SetTravelSelect( true );

            VclPtr<vcl::Window> xWindow = this;
            Select();
            if ( xWindow->IsDisposed() )
                return;

            mpImplLB->SetTravelSelect( bTravelSelect );
        }
    }

    ImplClearLayoutData();
    if( mpImplLB )
        mpImplLB->GetMainWindow()->ImplClearLayoutData();
    if( mpImplWin )
        mpImplWin->ImplClearLayoutData();

    mpBtn->SetPressed( false );
    CallEventListeners( VclEventId::DropdownClose );
}

void ListBox::ToggleDropDown()
{
    if( !IsDropDownBox() )
        return;

    if( mpFloatWin->IsInPopupMode() )
        mpFloatWin->EndPopupMode();
    else
    {
        CallEventListeners( VclEventId::DropdownPreOpen );
        mpImplWin->GrabFocus();
        mpBtn->SetPressed( true );
        mpFloatWin->StartFloat( true );
        CallEventListeners( VclEventId::DropdownOpen );
    }
}

void ListBox::ApplySettings(vcl::RenderContext& rRenderContext)
{
    rRenderContext.SetBackground();
}

void ListBox::Draw( OutputDevice* pDev, const Point& rPos, DrawFlags nFlags )
{
    mpImplLB->GetMainWindow()->ApplySettings(*pDev);

    Point aPos = pDev->LogicToPixel( rPos );
    Size aSize = GetSizePixel();
    vcl::Font aFont = mpImplLB->GetMainWindow()->GetDrawPixelFont( pDev );

    pDev->Push();
    pDev->SetMapMode();
    pDev->SetFont( aFont );
    pDev->SetTextFillColor();

    // Border/Background
    pDev->SetLineColor();
    pDev->SetFillColor();
    bool bBorder = (GetStyle() & WB_BORDER);
    bool bBackground = IsControlBackground();
    if ( bBorder || bBackground )
    {
        tools::Rectangle aRect( aPos, aSize );
        if ( bBorder )
        {
            ImplDrawFrame( pDev, aRect );
        }
        if ( bBackground )
        {
            pDev->SetFillColor( GetControlBackground() );
            pDev->DrawRect( aRect );
        }
    }

    // Content
    if ( nFlags & DrawFlags::Mono )
    {
        pDev->SetTextColor( COL_BLACK );
    }
    else
    {
        if ( !IsEnabled() )
        {
            const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
            pDev->SetTextColor( rStyleSettings.GetDisableColor() );
        }
        else
        {
            pDev->SetTextColor( GetTextColor() );
        }
    }

    const tools::Long nOnePixel = GetDrawPixel( pDev, 1 );
    const tools::Long nOffX = 3*nOnePixel;
    DrawTextFlags nTextStyle = DrawTextFlags::VCenter;
    tools::Rectangle aTextRect( aPos, aSize );

    if ( GetStyle() & WB_CENTER )
        nTextStyle |= DrawTextFlags::Center;
    else if ( GetStyle() & WB_RIGHT )
        nTextStyle |= DrawTextFlags::Right;
    else
        nTextStyle |= DrawTextFlags::Left;

    aTextRect.AdjustLeft(nOffX );
    aTextRect.AdjustRight( -nOffX );

    if ( IsDropDownBox() )
    {
        OUString   aText = GetSelectedEntry();
        tools::Long       nTextHeight = pDev->GetTextHeight();
        tools::Long       nTextWidth = pDev->GetTextWidth( aText );
        tools::Long       nOffY = (aSize.Height()-nTextHeight) / 2;

        // Clipping?
        if ( (nOffY < 0) ||
             ((nOffY+nTextHeight) > aSize.Height()) ||
             ((nOffX+nTextWidth) > aSize.Width()) )
        {
            tools::Rectangle aClip( aPos, aSize );
            if ( nTextHeight > aSize.Height() )
                aClip.AdjustBottom(nTextHeight-aSize.Height()+1 );  // So that HP Printers don't optimize this away
            pDev->IntersectClipRegion( aClip );
        }

        pDev->DrawText( aTextRect, aText, nTextStyle );
    }
    else
    {
        tools::Long        nTextHeight = pDev->GetTextHeight();
        sal_uInt16  nLines = ( nTextHeight > 0 ) ? static_cast<sal_uInt16>(aSize.Height() / nTextHeight) : 1;
        tools::Rectangle   aClip( aPos, aSize );

        pDev->IntersectClipRegion( aClip );

        if ( !nLines )
            nLines = 1;

        for ( sal_uInt16 n = 0; n < nLines; n++ )
        {
            sal_Int32 nEntry = n+mpImplLB->GetTopEntry();
            bool bSelected = mpImplLB->GetEntryList()->IsEntryPosSelected( nEntry );
            if ( bSelected )
            {
                pDev->SetFillColor( COL_BLACK );
                pDev->DrawRect( tools::Rectangle(  Point( aPos.X(), aPos.Y() + n*nTextHeight ),
                                            Point( aPos.X() + aSize.Width(), aPos.Y() + (n+1)*nTextHeight + 2*nOnePixel ) ) );
                pDev->SetFillColor();
                pDev->SetTextColor( COL_WHITE );
            }

            aTextRect.SetTop( aPos.Y() + n*nTextHeight );
            aTextRect.SetBottom( aTextRect.Top() + nTextHeight );

            pDev->DrawText( aTextRect, mpImplLB->GetEntryList()->GetEntryText( nEntry ), nTextStyle );

            if ( bSelected )
                pDev->SetTextColor( COL_BLACK );
        }
    }

    pDev->Pop();
}

void ListBox::GetFocus()
{
    if ( mpImplLB )
    {
        if( IsDropDownBox() )
            mpImplWin->GrabFocus();
        else
            mpImplLB->GrabFocus();
    }

    Control::GetFocus();
}

void ListBox::LoseFocus()
{
    if( IsDropDownBox() )
    {
        if (mpImplWin)
            mpImplWin->HideFocus();
    }
    else
    {
        if (mpImplLB)
            mpImplLB->HideFocus();
    }

    Control::LoseFocus();
}

void ListBox::DataChanged( const DataChangedEvent& rDCEvt )
{
    Control::DataChanged( rDCEvt );

    if ( !((rDCEvt.GetType() == DataChangedEventType::FONTS) ||
         (rDCEvt.GetType() == DataChangedEventType::FONTSUBSTITUTION) ||
         ((rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&
          (rDCEvt.GetFlags() & AllSettingsFlags::STYLE))) )
        return;

    SetBackground();    // Due to a hack in Window::UpdateSettings the background must be reset
                        // otherwise it will overpaint NWF drawn listboxes
    Resize();
    mpImplLB->Resize(); // Is not called by ListBox::Resize() if the ImplLB does not change

    if ( mpImplWin )
    {
        mpImplWin->SetSettings( GetSettings() ); // If not yet set...
        mpImplWin->ApplySettings(*mpImplWin);

        mpBtn->SetSettings( GetSettings() );
        ImplInitDropDownButton( mpBtn );
    }

    if ( IsDropDownBox() )
        Invalidate();
}

void ListBox::EnableAutoSize( bool bAuto )
{
    mbDDAutoSize = bAuto;
    if ( mpFloatWin )
    {
        if ( bAuto && !mpFloatWin->GetDropDownLineCount() )
        {
            // use GetListBoxMaximumLineCount here; before, was on fixed number of five
            AdaptDropDownLineCountToMaximum();
        }
        else if ( !bAuto )
        {
            mpFloatWin->SetDropDownLineCount( 0 );
        }
    }
}

void ListBox::SetDropDownLineCount( sal_uInt16 nLines )
{
    mnLineCount = nLines;
    if ( mpFloatWin )
        mpFloatWin->SetDropDownLineCount( mnLineCount );
}

void ListBox::AdaptDropDownLineCountToMaximum()
{
    // Adapt to maximum allowed number.
    // Limit for LOK as we can't render outside of the dialog canvas.
    if (comphelper::LibreOfficeKit::isActive())
        SetDropDownLineCount(11);
    else
        SetDropDownLineCount(GetSettings().GetStyleSettings().GetListBoxMaximumLineCount());
}

sal_uInt16 ListBox::GetDropDownLineCount() const
{
    if ( mpFloatWin )
        return mpFloatWin->GetDropDownLineCount();
    return mnLineCount;
}

void ListBox::setPosSizePixel( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, PosSizeFlags nFlags )
{
    if( IsDropDownBox() && ( nFlags & PosSizeFlags::Size ) )
    {
        Size aPrefSz = mpFloatWin->GetPrefSize();
        if ( ( nFlags & PosSizeFlags::Height ) && ( nHeight >= 2*mnDDHeight ) )
            aPrefSz.setHeight( nHeight-mnDDHeight );
        if ( nFlags & PosSizeFlags::Width )
            aPrefSz.setWidth( nWidth );
        mpFloatWin->SetPrefSize( aPrefSz );

        if (IsAutoSizeEnabled())
            nHeight = mnDDHeight;
    }

    Control::setPosSizePixel( nX, nY, nWidth, nHeight, nFlags );
}

void ListBox::Resize()
{
    Size aOutSz = GetOutputSizePixel();
    if( IsDropDownBox() )
    {
        // Initialize the dropdown button size with the standard scrollbar width
        tools::Long nSBWidth = GetSettings().GetStyleSettings().GetScrollBarSize();
        tools::Long nBottom = aOutSz.Height();

        // Note: in case of no border, pBorder will actually be this
        vcl::Window *pBorder = GetWindow( GetWindowType::Border );
        ImplControlValue aControlValue;
        Point aPoint;
        tools::Rectangle aContent, aBound;

        // Use the full extent of the control
        tools::Rectangle aArea( aPoint, pBorder->GetOutputSizePixel() );

        if ( GetNativeControlRegion( ControlType::Listbox, ControlPart::ButtonDown,
                    aArea, ControlState::NONE, aControlValue, aBound, aContent) )
        {
            // Convert back from border space to local coordinates
            aPoint = pBorder->ScreenToOutputPixel( OutputToScreenPixel( aPoint ) );
            aContent.Move( -aPoint.X(), -aPoint.Y() );

            // Use the themes drop down size for the button
            aOutSz.setWidth( aContent.Left() );
            mpBtn->setPosSizePixel( aContent.Left(), 0, aContent.GetWidth(), nBottom );

            // Adjust the size of the edit field
            if ( GetNativeControlRegion( ControlType::Listbox, ControlPart::SubEdit,
                        aArea, ControlState::NONE, aControlValue, aBound, aContent) )
            {
                // Convert back from border space to local coordinates
                aContent.Move( -aPoint.X(), -aPoint.Y() );

                // Use the themes drop down size
                if( ! (GetStyle() & WB_BORDER) && ImplGetSVData()->maNWFData.mbNoFocusRects )
                {
                    // No border but focus ring behavior -> we have a problem; the
                    // native rect relies on the border to draw the focus
                    // let's do the best we can and center vertically, so it doesn't look
                    // completely wrong.
                    Size aSz( GetOutputSizePixel() );
                    tools::Long nDiff = aContent.Top() - (aSz.Height() - aContent.GetHeight())/2;
                    aContent.AdjustTop( -nDiff );
                    aContent.AdjustBottom( -nDiff );
                }
                mpImplWin->SetPosSizePixel( aContent.TopLeft(), aContent.GetSize() );
            }
            else
                mpImplWin->SetSizePixel( aOutSz );
        }
        else
        {
            nSBWidth = CalcZoom( nSBWidth );
            mpImplWin->setPosSizePixel( 0, 0, aOutSz.Width() - nSBWidth, aOutSz.Height() );
            mpBtn->setPosSizePixel( aOutSz.Width() - nSBWidth, 0, nSBWidth, aOutSz.Height() );
        }
    }
    else
    {
        mpImplLB->SetSizePixel( aOutSz );
    }

    // Retain FloatingWindow size even when it's invisible, as we still process KEY_PGUP/DOWN ...
    if ( mpFloatWin )
        mpFloatWin->SetSizePixel( mpFloatWin->CalcFloatSize() );

    Control::Resize();
}

void ListBox::FillLayoutData() const
{
    mpControlData->mpLayoutData.reset( new vcl::ControlLayoutData );
    const ImplListBoxWindow* rMainWin = mpImplLB->GetMainWindow();
    if( mpFloatWin )
    {
        // Dropdown mode
        AppendLayoutData( *mpImplWin );
        mpImplWin->SetLayoutDataParent( this );
        if( mpFloatWin->IsReallyVisible() )
        {
            AppendLayoutData( *rMainWin );
            rMainWin->SetLayoutDataParent( this );
        }
    }
    else
    {
        AppendLayoutData( *rMainWin );
        rMainWin->SetLayoutDataParent( this );
    }
}

tools::Long ListBox::GetIndexForPoint( const Point& rPoint, sal_Int32& rPos ) const
{
    if( !HasLayoutData() )
        FillLayoutData();

    // Check whether rPoint fits at all
    tools::Long nIndex = Control::GetIndexForPoint( rPoint );
    if( nIndex != -1 )
    {
        // Point must be either in main list window
        // or in impl window (dropdown case)
        ImplListBoxWindow* rMain = mpImplLB->GetMainWindow();

        // Convert coordinates to ImplListBoxWindow pixel coordinate space
        Point aConvPoint = LogicToPixel( rPoint );
        aConvPoint = OutputToAbsoluteScreenPixel( aConvPoint );
        aConvPoint = rMain->AbsoluteScreenToOutputPixel( aConvPoint );
        aConvPoint = rMain->PixelToLogic( aConvPoint );

        // Try to find entry
        sal_Int32 nEntry = rMain->GetEntryPosForPoint( aConvPoint );
        if( nEntry == LISTBOX_ENTRY_NOTFOUND )
        {
            // Not found, maybe dropdown case
            if( mpImplWin && mpImplWin->IsReallyVisible() )
            {
                // Convert to impl window pixel coordinates
                aConvPoint = LogicToPixel( rPoint );
                aConvPoint = OutputToAbsoluteScreenPixel( aConvPoint );
                aConvPoint = mpImplWin->AbsoluteScreenToOutputPixel( aConvPoint );

                // Check whether converted point is inside impl window
                Size aImplWinSize = mpImplWin->GetOutputSizePixel();
                if( aConvPoint.X() >= 0 && aConvPoint.Y() >= 0 && aConvPoint.X() < aImplWinSize.Width() && aConvPoint.Y() < aImplWinSize.Height() )
                {
                    // Inside the impl window, the position is the current item pos
                    rPos = mpImplWin->GetItemPos();
                }
                else
                    nIndex = -1;
            }
            else
                nIndex = -1;
        }
        else
            rPos = nEntry;

        SAL_WARN_IF( nIndex == -1, "vcl", "found index for point, but relative index failed" );
    }

    // Get line relative index
    if( nIndex != -1 )
        nIndex = ToRelativeLineIndex( nIndex );

    return nIndex;
}

void ListBox::StateChanged( StateChangedType nType )
{
    if( nType == StateChangedType::ReadOnly )
    {
        if( mpImplWin )
            mpImplWin->Enable( !IsReadOnly() );
        if( mpBtn )
            mpBtn->Enable( !IsReadOnly() );
    }
    else if( nType == StateChangedType::Enable )
    {
        mpImplLB->Enable( IsEnabled() );
        if( mpImplWin )
        {
            mpImplWin->Enable( IsEnabled() );
            if ( IsNativeControlSupported(ControlType::Listbox, ControlPart::Entire)
                    && ! IsNativeControlSupported(ControlType::Listbox, ControlPart::ButtonDown) )
            {
                GetWindow( GetWindowType::Border )->Invalidate( InvalidateFlags::NoErase );
            }
            else
                mpImplWin->Invalidate();
        }
        if( mpBtn )
            mpBtn->Enable( IsEnabled() );
    }
    else if( nType == StateChangedType::UpdateMode )
    {
        mpImplLB->SetUpdateMode( IsUpdateMode() );
    }
    else if ( nType == StateChangedType::Zoom )
    {
        mpImplLB->SetZoom( GetZoom() );
        if ( mpImplWin )
        {
            mpImplWin->SetZoom( GetZoom() );
            mpImplWin->SetFont( mpImplLB->GetMainWindow()->GetFont() );
            mpImplWin->Invalidate();
        }
        Resize();
    }
    else if ( nType == StateChangedType::ControlFont )
    {
        mpImplLB->SetControlFont( GetControlFont() );
        if ( mpImplWin )
        {
            mpImplWin->SetControlFont( GetControlFont() );
            mpImplWin->SetFont( mpImplLB->GetMainWindow()->GetFont() );
            mpImplWin->Invalidate();
        }
        Resize();
    }
    else if ( nType == StateChangedType::ControlForeground )
    {
        mpImplLB->SetControlForeground( GetControlForeground() );
        if ( mpImplWin )
        {
            mpImplWin->SetControlForeground( GetControlForeground() );
            mpImplWin->SetTextColor( GetControlForeground() );
            mpImplWin->SetFont( mpImplLB->GetMainWindow()->GetFont() );
            mpImplWin->Invalidate();
        }
    }
    else if ( nType == StateChangedType::ControlBackground )
    {
        mpImplLB->SetControlBackground( GetControlBackground() );
        if ( mpImplWin )
        {
            if ( mpImplWin->IsNativeControlSupported(ControlType::Listbox, ControlPart::Entire) )
            {
                // Transparent background
                mpImplWin->SetBackground();
                mpImplWin->SetControlBackground();
            }
            else
            {
                mpImplWin->SetBackground( mpImplLB->GetMainWindow()->GetControlBackground() );
                mpImplWin->SetControlBackground( mpImplLB->GetMainWindow()->GetControlBackground() );
            }
            mpImplWin->SetFont( mpImplLB->GetMainWindow()->GetFont() );
            mpImplWin->Invalidate();
        }
    }
    else if ( nType == StateChangedType::Style )
    {
        SetStyle( ImplInitStyle( GetStyle() ) );
        mpImplLB->GetMainWindow()->EnableSort( ( GetStyle() & WB_SORT ) != 0 );
        bool bSimpleMode = ( GetStyle() & WB_SIMPLEMODE ) != 0;
        mpImplLB->SetMultiSelectionSimpleMode( bSimpleMode );
    }
    else if( nType == StateChangedType::Mirroring )
    {
        if( mpBtn )
        {
            mpBtn->EnableRTL( IsRTLEnabled() );
            ImplInitDropDownButton( mpBtn );
        }
        mpImplLB->EnableRTL( IsRTLEnabled() );
        if( mpImplWin )
            mpImplWin->EnableRTL( IsRTLEnabled() );
        Resize();
    }

    Control::StateChanged( nType );
}

bool ListBox::PreNotify( NotifyEvent& rNEvt )
{
    bool bDone = false;
    if ( mpImplLB )
    {
        if( ( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT ) && ( rNEvt.GetWindow() == mpImplWin ) )
        {
            KeyEvent aKeyEvt = *rNEvt.GetKeyEvent();
            switch( aKeyEvt.GetKeyCode().GetCode() )
            {
                case KEY_DOWN:
                {
                    if( mpFloatWin && !mpFloatWin->IsInPopupMode() &&
                        aKeyEvt.GetKeyCode().IsMod2() )
                    {
                        CallEventListeners( VclEventId::DropdownPreOpen );
                        mpBtn->SetPressed( true );
                        mpFloatWin->StartFloat( false );
                        CallEventListeners( VclEventId::DropdownOpen );
                        bDone = true;
                    }
                    else
                    {
                        bDone = mpImplLB->ProcessKeyInput( aKeyEvt );
                    }
                }
                break;
                case KEY_UP:
                {
                    if( mpFloatWin && mpFloatWin->IsInPopupMode() &&
                        aKeyEvt.GetKeyCode().IsMod2() )
                    {
                        mpFloatWin->EndPopupMode();
                        bDone = true;
                    }
                    else
                    {
                        bDone = mpImplLB->ProcessKeyInput( aKeyEvt );
                    }
                }
                break;
                case KEY_RETURN:
                {
                    if( IsInDropDown() )
                    {
                        mpImplLB->ProcessKeyInput( aKeyEvt );
                        bDone = true;
                    }
                }
                break;

                default:
                {
                    bDone = mpImplLB->ProcessKeyInput( aKeyEvt );
                }
            }
        }
        else if ( rNEvt.GetType() == MouseNotifyEvent::LOSEFOCUS )
        {
            if ( IsInDropDown() && !HasChildPathFocus( true ) )
                mpFloatWin->EndPopupMode();
        }
        else if ( (rNEvt.GetType() == MouseNotifyEvent::COMMAND) &&
                  (rNEvt.GetCommandEvent()->GetCommand() == CommandEventId::Wheel) &&
                  (rNEvt.GetWindow() == mpImplWin) )
        {
            MouseWheelBehaviour nWheelBehavior( GetSettings().GetMouseSettings().GetWheelBehavior() );
            if  (   ( nWheelBehavior == MouseWheelBehaviour::ALWAYS )
                ||  (   ( nWheelBehavior == MouseWheelBehaviour::FocusOnly )
                    &&  HasChildPathFocus()
                    )
                )
            {
                bDone = mpImplLB->HandleWheelAsCursorTravel(*rNEvt.GetCommandEvent(), *this);
            }
            else
            {
                bDone = false;  // Don't consume this event, let the default handling take it (i.e. scroll the context)
            }
        }
    }

    return bDone || Control::PreNotify( rNEvt );
}

void ListBox::Select()
{
    ImplCallEventListenersAndHandler( VclEventId::ListboxSelect, [this] () { maSelectHdl.Call(*this); } );
}

void ListBox::DoubleClick()
{
    ImplCallEventListenersAndHandler( VclEventId::ListboxDoubleClick, {} );
}

void ListBox::Clear()
{
    if (!mpImplLB)
        return;
    mpImplLB->Clear();
    if( IsDropDownBox() )
    {
        mpImplWin->SetItemPos( LISTBOX_ENTRY_NOTFOUND );
        mpImplWin->SetString( OUString() );
        Image aImage;
        mpImplWin->SetImage( aImage );
        mpImplWin->Invalidate();
    }
    CallEventListeners( VclEventId::ListboxItemRemoved, reinterpret_cast<void*>(-1) );
}

void ListBox::SetNoSelection()
{
    mpImplLB->SetNoSelection();
    if( IsDropDownBox() )
    {
        mpImplWin->SetItemPos( LISTBOX_ENTRY_NOTFOUND );
        mpImplWin->SetString( OUString() );
        Image aImage;
        mpImplWin->SetImage( aImage );
        mpImplWin->Invalidate();
    }
}

sal_Int32 ListBox::InsertEntry( const OUString& rStr, sal_Int32 nPos )
{
    sal_Int32 nRealPos = mpImplLB->InsertEntry( nPos + mpImplLB->GetEntryList()->GetMRUCount(), rStr );
    nRealPos = sal::static_int_cast<sal_Int32>(nRealPos - mpImplLB->GetEntryList()->GetMRUCount());
    CallEventListeners( VclEventId::ListboxItemAdded, reinterpret_cast<void*>(nRealPos) );
    return nRealPos;
}

sal_Int32 ListBox::InsertEntry( const OUString& rStr, const Image& rImage, sal_Int32 nPos )
{
    sal_Int32 nRealPos = mpImplLB->InsertEntry( nPos + mpImplLB->GetEntryList()->GetMRUCount(), rStr, rImage );
    nRealPos = sal::static_int_cast<sal_Int32>(nRealPos - mpImplLB->GetEntryList()->GetMRUCount());
    CallEventListeners( VclEventId::ListboxItemAdded, reinterpret_cast<void*>(nRealPos) );
    return nRealPos;
}

void ListBox::RemoveEntry( sal_Int32 nPos )
{
    mpImplLB->RemoveEntry( nPos + mpImplLB->GetEntryList()->GetMRUCount() );
    CallEventListeners( VclEventId::ListboxItemRemoved, reinterpret_cast<void*>(nPos) );
}

Image ListBox::GetEntryImage( sal_Int32 nPos ) const
{
    if ( mpImplLB && mpImplLB->GetEntryList()->HasEntryImage( nPos ) )
        return mpImplLB->GetEntryList()->GetEntryImage( nPos );
    return Image();
}

sal_Int32 ListBox::GetEntryPos( std::u16string_view rStr ) const
{
    if (!mpImplLB)
        return LISTBOX_ENTRY_NOTFOUND;
    sal_Int32 nPos = mpImplLB->GetEntryList()->FindEntry( rStr );
    if ( nPos != LISTBOX_ENTRY_NOTFOUND )
        nPos = nPos - mpImplLB->GetEntryList()->GetMRUCount();
    return nPos;
}

OUString ListBox::GetEntry( sal_Int32 nPos ) const
{
    if (!mpImplLB)
        return OUString();
    return mpImplLB->GetEntryList()->GetEntryText( nPos + mpImplLB->GetEntryList()->GetMRUCount() );
}

sal_Int32 ListBox::GetEntryCount() const
{
    if (!mpImplLB)
        return 0;
    return mpImplLB->GetEntryList()->GetEntryCount() - mpImplLB->GetEntryList()->GetMRUCount();
}

OUString ListBox::GetSelectedEntry(sal_Int32 nIndex) const
{
    return GetEntry( GetSelectedEntryPos( nIndex ) );
}

sal_Int32 ListBox::GetSelectedEntryCount() const
{
    if (!mpImplLB)
        return 0;
    return mpImplLB->GetEntryList()->GetSelectedEntryCount();
}

sal_Int32 ListBox::GetSelectedEntryPos( sal_Int32 nIndex ) const
{
    if (!mpImplLB || !mpImplLB->GetEntryList())
        return LISTBOX_ENTRY_NOTFOUND;

    sal_Int32 nPos = mpImplLB->GetEntryList()->GetSelectedEntryPos( nIndex );
    if ( nPos != LISTBOX_ENTRY_NOTFOUND )
    {
        if ( nPos < mpImplLB->GetEntryList()->GetMRUCount() )
            nPos = mpImplLB->GetEntryList()->FindEntry( mpImplLB->GetEntryList()->GetEntryText( nPos ) );
        nPos = nPos - mpImplLB->GetEntryList()->GetMRUCount();
    }
    return nPos;
}

bool ListBox::IsEntryPosSelected( sal_Int32 nPos ) const
{
    return mpImplLB->GetEntryList()->IsEntryPosSelected( nPos + mpImplLB->GetEntryList()->GetMRUCount() );
}

void ListBox::SelectEntry( std::u16string_view rStr, bool bSelect )
{
    SelectEntryPos( GetEntryPos( rStr ), bSelect );
}

void ListBox::SelectEntryPos( sal_Int32 nPos, bool bSelect )
{
    if (!mpImplLB)
        return;

    if ( 0 <= nPos && nPos < mpImplLB->GetEntryList()->GetEntryCount() )
    {
        sal_Int32 nCurrentPos = mpImplLB->GetCurrentPos();
        mpImplLB->SelectEntry( nPos + mpImplLB->GetEntryList()->GetMRUCount(), bSelect );
        //Only when bSelect == true, send both Selection & Focus events
        if (nCurrentPos != nPos && bSelect)
        {
            CallEventListeners( VclEventId::ListboxSelect, reinterpret_cast<void*>(nPos));
            if (HasFocus())
                CallEventListeners( VclEventId::ListboxFocus, reinterpret_cast<void*>(nPos));
        }
    }
}

void ListBox::SelectEntriesPos( const std::vector<sal_Int32>& rPositions, bool bSelect )
{
    if (!mpImplLB)
        return;

    bool bCallListeners = false;

    const sal_Int32 nCurrentPos = mpImplLB->GetCurrentPos();
    const auto nEntryCount = mpImplLB->GetEntryList()->GetEntryCount();
    const auto nMRUCount = mpImplLB->GetEntryList()->GetMRUCount();

    for (auto nPos : rPositions)
    {
        if (0 <= nPos && nPos < nEntryCount)
        {
            mpImplLB->SelectEntry(nPos + nMRUCount, bSelect);
            if (nCurrentPos != nPos && bSelect)
                bCallListeners = true;
        }
    }

    //Only when bSelect == true, send both Selection & Focus events
    if (bCallListeners)
    {
        CallEventListeners(VclEventId::ListboxSelect);
        if (HasFocus())
            CallEventListeners(VclEventId::ListboxFocus);
    }
}

void ListBox::SetEntryData( sal_Int32 nPos, void* pNewData )
{
    mpImplLB->SetEntryData( nPos + mpImplLB->GetEntryList()->GetMRUCount(), pNewData );
}

void* ListBox::GetEntryData( sal_Int32 nPos ) const
{
    return mpImplLB->GetEntryList()->GetEntryData( nPos + mpImplLB->GetEntryList()->GetMRUCount() );
}

void ListBox::SetEntryFlags( sal_Int32 nPos, ListBoxEntryFlags nFlags )
{
    mpImplLB->SetEntryFlags( nPos + mpImplLB->GetEntryList()->GetMRUCount(), nFlags );
}

void ListBox::SetTopEntry( sal_Int32 nPos )
{
    mpImplLB->SetTopEntry( nPos + mpImplLB->GetEntryList()->GetMRUCount() );
}

sal_Int32 ListBox::GetTopEntry() const
{
    sal_Int32 nPos = GetEntryCount() ? mpImplLB->GetTopEntry() : LISTBOX_ENTRY_NOTFOUND;
    if ( nPos < mpImplLB->GetEntryList()->GetMRUCount() )
        nPos = 0;
    return nPos;
}

bool ListBox::IsTravelSelect() const
{
    return mpImplLB->IsTravelSelect();
}

bool ListBox::IsInDropDown() const
{
    // when the dropdown is dismissed, first mbInPopupMode is set to false, and on the next event iteration then
    // mbPopupMode is set to false
    return mpFloatWin && mpFloatWin->IsInPopupMode() && mpFloatWin->ImplIsInPrivatePopupMode();
}

tools::Rectangle ListBox::GetBoundingRectangle( sal_Int32 nItem ) const
{
    tools::Rectangle aRect = mpImplLB->GetMainWindow()->GetBoundingRectangle( nItem );
    tools::Rectangle aOffset = mpImplLB->GetMainWindow()->GetWindowExtentsRelative( static_cast<vcl::Window*>(const_cast<ListBox *>(this)) );
    aRect.Move( aOffset.Left(), aOffset.Top() );
    return aRect;
}

void ListBox::EnableMultiSelection( bool bMulti )
{
    mpImplLB->EnableMultiSelection( bMulti );

    // WB_SIMPLEMODE:
    // The MultiListBox behaves just like a normal ListBox
    // MultiSelection is possible via corresponding additional keys
    bool bSimpleMode = ( GetStyle() & WB_SIMPLEMODE ) != 0;
    mpImplLB->SetMultiSelectionSimpleMode( bSimpleMode );

    // In a MultiSelection, we can't see us travelling without focus
    if ( mpFloatWin )
        mpImplLB->GetMainWindow()->AllowGrabFocus( bMulti );
}

bool ListBox::IsMultiSelectionEnabled() const
{
    return mpImplLB->IsMultiSelectionEnabled();
}

Size ListBox::CalcMinimumSize() const
{
    Size aSz;

    if (!mpImplLB)
        return aSz;

    aSz = CalcSubEditSize();

    bool bAddScrollWidth = false;

    if (IsDropDownBox())
    {
        aSz.AdjustHeight(4 ); // add a space between entry and border
        aSz.AdjustWidth(4 );  // add a little breathing space
        bAddScrollWidth = true;
    }
    else
        bAddScrollWidth = (GetStyle() & WB_VSCROLL) == WB_VSCROLL;

    if (bAddScrollWidth)
    {
        // Try native borders; scrollbar size may not be a good indicator
        // See how large the edit area inside is to estimate what is needed for the dropdown
        ImplControlValue aControlValue;
        tools::Rectangle aContent, aBound;
        Size aTestSize( 100, 20 );
        tools::Rectangle aArea( Point(), aTestSize );
        if( GetNativeControlRegion( ControlType::Listbox, ControlPart::SubEdit, aArea, ControlState::NONE,
                    aControlValue, aBound, aContent) )
        {
            // use the themes drop down size
            aSz.AdjustWidth(aTestSize.Width() - aContent.GetWidth() );
        }
        else
            aSz.AdjustWidth(GetSettings().GetStyleSettings().GetScrollBarSize() );
    }

    aSz = CalcWindowSize( aSz );

    if (IsDropDownBox()) // Check minimum height of dropdown box
    {
        ImplControlValue aControlValue;
        tools::Rectangle aRect( Point( 0, 0 ), aSz );
        tools::Rectangle aContent, aBound;
        if( GetNativeControlRegion( ControlType::Listbox, ControlPart::Entire, aRect, ControlState::NONE,
                    aControlValue, aBound, aContent) )
        {
            if( aBound.GetHeight() > aSz.Height() )
                aSz.setHeight( aBound.GetHeight() );
        }
    }

    return aSz;
}

Size ListBox::CalcSubEditSize() const
{
    Size aSz;

    if (!mpImplLB)
        return aSz;

    if ( !IsDropDownBox() )
        aSz = mpImplLB->CalcSize (mnLineCount ? mnLineCount : mpImplLB->GetEntryList()->GetEntryCount());
    else
    {
        aSz.setHeight( mpImplLB->GetEntryHeight() );
        // Size to maximum entry width
        aSz.setWidth( mpImplLB->GetMaxEntryWidth() );

        if (m_nMaxWidthChars != -1)
        {
            tools::Long nMaxWidth = m_nMaxWidthChars * approximate_char_width();
            aSz.setWidth( std::min(aSz.Width(), nMaxWidth) );
        }

        // Do not create ultrathin ListBoxes, it doesn't look good
        if( aSz.Width() < GetSettings().GetStyleSettings().GetScrollBarSize() )
            aSz.setWidth( GetSettings().GetStyleSettings().GetScrollBarSize() );
    }

    return aSz;
}

Size ListBox::GetOptimalSize() const
{
    return CalcMinimumSize();
}

Size ListBox::CalcAdjustedSize( const Size& rPrefSize ) const
{
    Size aSz = rPrefSize;
    sal_Int32 nLeft, nTop, nRight, nBottom;
    static_cast<vcl::Window*>(const_cast<ListBox *>(this))->GetBorder( nLeft, nTop, nRight, nBottom );
    aSz.AdjustHeight( -(nTop+nBottom) );
    if ( !IsDropDownBox() )
    {
        tools::Long nEntryHeight = CalcBlockSize( 1, 1 ).Height();
        tools::Long nLines = aSz.Height() / nEntryHeight;
        if ( nLines < 1 )
            nLines = 1;
        aSz.setHeight( nLines * nEntryHeight );
    }
    else
    {
        aSz.setHeight( mnDDHeight );
    }
    aSz.AdjustHeight(nTop+nBottom );

    aSz = CalcWindowSize( aSz );
    return aSz;
}

Size ListBox::CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const
{
    // ScrollBars are shown if needed
    Size aMinSz = CalcMinimumSize();
    // aMinSz = ImplCalcOutSz( aMinSz );

    Size aSz;

    // Height
    if ( nLines )
    {
        if ( !IsDropDownBox() )
            aSz.setHeight( mpImplLB->CalcSize( nLines ).Height() );
        else
            aSz.setHeight( mnDDHeight );
    }
    else
        aSz.setHeight( aMinSz.Height() );

    // Width
    if ( nColumns )
        aSz.setWidth( nColumns * GetTextWidth( OUString('X') ) );
    else
        aSz.setWidth( aMinSz.Width() );

    if ( IsDropDownBox() )
        aSz.AdjustWidth(GetSettings().GetStyleSettings().GetScrollBarSize() );

    if ( !IsDropDownBox() )
    {
        if ( aSz.Width() < aMinSz.Width() )
            aSz.AdjustHeight(GetSettings().GetStyleSettings().GetScrollBarSize() );
        if ( aSz.Height() < aMinSz.Height() )
            aSz.AdjustWidth(GetSettings().GetStyleSettings().GetScrollBarSize() );
    }

    aSz = CalcWindowSize( aSz );
    return aSz;
}

void ListBox::GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const
{
    float nCharWidth = approximate_char_width();
    if ( !IsDropDownBox() )
    {
        Size aOutSz = mpImplLB->GetMainWindow()->GetOutputSizePixel();
        rnCols = static_cast<sal_uInt16>(aOutSz.Width()/nCharWidth);
        rnLines = static_cast<sal_uInt16>(aOutSz.Height()/mpImplLB->GetEntryHeightWithMargin());
    }
    else
    {
        Size aOutSz = mpImplWin->GetOutputSizePixel();
        rnCols = static_cast<sal_uInt16>(aOutSz.Width()/nCharWidth);
        rnLines = 1;
    }
}

void ListBox::SetReadOnly( bool bReadOnly )
{
    if ( mpImplLB->IsReadOnly() != bReadOnly )
    {
        mpImplLB->SetReadOnly( bReadOnly );
        CompatStateChanged( StateChangedType::ReadOnly );
    }
}

bool ListBox::IsReadOnly() const
{
    return mpImplLB->IsReadOnly();
}

void ListBox::SetSeparatorPos( sal_Int32 n )
{
    mpImplLB->SetSeparatorPos( n );
}

sal_Int32 ListBox::GetSeparatorPos() const
{
    return mpImplLB->GetSeparatorPos();
}

void ListBox::AddSeparator( sal_Int32 n )
{
    mpImplLB->AddSeparator( n );
}

sal_uInt16 ListBox::GetDisplayLineCount() const
{
    return mpImplLB->GetDisplayLineCount();
}

tools::Rectangle ListBox::GetDropDownPosSizePixel() const
{
    return mpFloatWin ? mpFloatWin->GetWindowExtentsRelative(this) : tools::Rectangle();
}

const Wallpaper& ListBox::GetDisplayBackground() const
{
    // !!! Recursion does not occur because the ImplListBox is initialized by default
    // to a non-transparent color in Window::ImplInitData
    return mpImplLB->GetDisplayBackground();
}

void ListBox::setMaxWidthChars(sal_Int32 nWidth)
{
    if (nWidth != m_nMaxWidthChars)
    {
        m_nMaxWidthChars = nWidth;
        queue_resize();
    }
}

bool ListBox::set_property(const OString &rKey, const OUString &rValue)
{
    if (rKey == "active")
        SelectEntryPos(rValue.toInt32());
    else if (rKey == "max-width-chars")
        setMaxWidthChars(rValue.toInt32());
    else if (rKey == "can-focus")
    {
        // as far as I can see in Gtk, setting a ComboBox as can.focus means
        // the focus gets stuck in it, so try here to behave like gtk does
        // with the settings that work, i.e. can.focus of false doesn't
        // set the hard WB_NOTABSTOP
        WinBits nBits = GetStyle();
        nBits &= ~(WB_TABSTOP|WB_NOTABSTOP);
        if (toBool(rValue))
            nBits |= WB_TABSTOP;
        SetStyle(nBits);
    }
    else
        return Control::set_property(rKey, rValue);
    return true;
}

FactoryFunction ListBox::GetUITestFactory() const
{
    return ListBoxUIObject::create;
}

void ListBox::DumpAsPropertyTree(tools::JsonWriter& rJsonWriter)
{
    Control::DumpAsPropertyTree(rJsonWriter);

    {
        auto entriesNode = rJsonWriter.startArray("entries");
        for (int i = 0; i < GetEntryCount(); ++i)
        {
            rJsonWriter.putSimpleValue(GetEntry(i));
        }
    }

    rJsonWriter.put("selectedCount", GetSelectedEntryCount());

    {
        auto entriesNode = rJsonWriter.startArray("selectedEntries");
        for (int i = 0; i < GetSelectedEntryCount(); ++i)
        {
            rJsonWriter.putSimpleValue(OUString::number(GetSelectedEntryPos(i)));
        }
    }
}

MultiListBox::MultiListBox( vcl::Window* pParent, WinBits nStyle ) :
    ListBox( WindowType::MULTILISTBOX )
{
    ImplInit( pParent, nStyle );
    EnableMultiSelection( true );
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */