/* -*- 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/toolkit/fixed.hxx>

#include <vcl/layout.hxx>

#include <vcl/tabctrl.hxx>

#include <vcl/toolkit/tabdlg.hxx>

#include <vcl/tabpage.hxx>

void TabDialog::ImplInitTabDialogData()

{

    mpFixedLine     = nullptr;

    mbPosControls   = true;

}

void TabDialog::ImplPosControls()

{

    if (isLayoutEnabled())

        return;

    Size        aCtrlSize( IMPL_MINSIZE_BUTTON_WIDTH, IMPL_MINSIZE_BUTTON_HEIGHT );

    tools::Long        nDownCtrl = 0;

    tools::Long        nOffY = 0;

    vcl::Window*     pTabControl = nullptr;

    vcl::Window* pChild = GetWindow( GetWindowType::FirstChild );

    while ( pChild )

    {

        if ( pChild->IsVisible() )

        {

            if (pChild->GetType() == WindowType::TABCONTROL || isContainerWindow(*pChild))

                pTabControl = pChild;

            else if ( pTabControl )

            {

                Size aOptimalSize(pChild->get_preferred_size());

                tools::Long nTxtWidth = aOptimalSize.Width();

                if ( nTxtWidth > aCtrlSize.Width() )

                    aCtrlSize.setWidth( nTxtWidth );

                tools::Long nTxtHeight = aOptimalSize.Height();

                if ( nTxtHeight > aCtrlSize.Height() )

                    aCtrlSize.setHeight( nTxtHeight );

                nDownCtrl++;

            }

            else

            {

                tools::Long nHeight = pChild->GetSizePixel().Height();

                if ( nHeight > nOffY )

                    nOffY = nHeight;

            }

        }

        pChild = pChild->GetWindow( GetWindowType::Next );

    }

    // do we have a TabControl ?

    if ( pTabControl )

    {

        // adapt offset for other controls by an extra distance

        if ( nOffY )

            nOffY += IMPL_DIALOG_BAR_OFFSET*2 + 2;

        Point   aTabOffset( IMPL_DIALOG_OFFSET, IMPL_DIALOG_OFFSET+nOffY );

        if (isContainerWindow(*pTabControl))

            pTabControl->SetSizePixel(pTabControl->get_preferred_size());

        Size    aTabSize = pTabControl->GetSizePixel();

        Size    aDlgSize( aTabSize.Width() + IMPL_DIALOG_OFFSET*2,

                          aTabSize.Height() + IMPL_DIALOG_OFFSET*2 + nOffY );

        // adapt positioning

        pTabControl->SetPosPixel( aTabOffset );

        // position all other Children

        bool bTabCtrl   = false;

        int  nLines     = 0;

        tools::Long nX;

        tools::Long nY         = aDlgSize.Height();

        tools::Long nTopX      = IMPL_DIALOG_OFFSET;

        // all buttons are right aligned under Windows 95

        nX = IMPL_DIALOG_OFFSET;

        tools::Long nCtrlBarWidth = ((aCtrlSize.Width()+IMPL_DIALOG_OFFSET)*nDownCtrl)-IMPL_DIALOG_OFFSET;

        if ( nCtrlBarWidth <= aTabSize.Width() )

            nX = aTabSize.Width() - nCtrlBarWidth + IMPL_DIALOG_OFFSET;

        vcl::Window* pChild2 = GetWindow( GetWindowType::FirstChild );

        while ( pChild2 )

        {

            if ( pChild2->IsVisible() )

            {

                if ( pChild2 == pTabControl )

                    bTabCtrl = true;

                else if ( bTabCtrl )

                {

                    if ( !nLines )

                        nLines = 1;

                    if ( nX+aCtrlSize.Width()-IMPL_DIALOG_OFFSET > aTabSize.Width() )

                    {

                        nY += aCtrlSize.Height()+IMPL_DIALOG_OFFSET;

                        nX  = IMPL_DIALOG_OFFSET;

                        nLines++;

                    }

                    pChild2->SetPosSizePixel( Point( nX, nY ), aCtrlSize );

                    nX += aCtrlSize.Width()+IMPL_DIALOG_OFFSET;

                }

                else

                {

                    Size aChildSize = pChild2->GetSizePixel();

                    pChild2->SetPosPixel( Point( nTopX, (nOffY-aChildSize.Height())/2 ) );

                    nTopX += aChildSize.Width()+2;

                }

            }

            pChild2 = pChild2->GetWindow( GetWindowType::Next );

        }

        aDlgSize.AdjustHeight(nLines * (aCtrlSize.Height()+IMPL_DIALOG_OFFSET) );

        SetOutputSizePixel( aDlgSize );

    }

    // store offset

    if ( nOffY )

    {

        Size aDlgSize = GetOutputSizePixel();

        if ( !mpFixedLine )

            mpFixedLine = VclPtr<FixedLine>::Create( this );

        mpFixedLine->SetPosSizePixel( Point( 0, nOffY ),

                                      Size( aDlgSize.Width(), 2 ) );

        mpFixedLine->Show();

    }

    mbPosControls = false;

}

TabDialog::TabDialog( vcl::Window* pParent, WinBits nStyle ) :

    Dialog( WindowType::TABDIALOG )

{

    ImplInitTabDialogData();

    ImplInitDialog( pParent, nStyle );

}

Unexecuted instantiation: TabDialog::TabDialog(vcl::Window*, long)

Unexecuted instantiation: TabDialog::TabDialog(vcl::Window*, long)

TabDialog::~TabDialog()

{

    disposeOnce();

}

void TabDialog::dispose()

{

    mpFixedLine.disposeAndClear();

    Dialog::dispose();

}

void TabDialog::StateChanged( StateChangedType nType )

{

    if ( nType == StateChangedType::InitShow )

    {

        // Calculate the Layout only for the initialized state

        if ( mbPosControls )

            ImplPosControls();

    }

    Dialog::StateChanged( nType );

}

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