/* -*- 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 <helper/vclstatusindicator.hxx>

#include <toolkit/helper/vclunohelper.hxx>

#include <utility>

#include <vcl/svapp.hxx>

namespace framework {

VCLStatusIndicator::VCLStatusIndicator(css::uno::Reference< css::awt::XWindow >                xParentWindow)

    : m_xParentWindow    (std::move(xParentWindow                ))

    , m_pStatusBar       (nullptr                            )

    , m_nRange           (0                            )

    , m_nValue           (0                            )

{

    if (!m_xParentWindow.is())

        throw css::uno::RuntimeException(

                u"Can't work without a parent window!"_ustr,

                static_cast< css::task::XStatusIndicator* >(this));

}

VCLStatusIndicator::~VCLStatusIndicator()

{

}

void SAL_CALL VCLStatusIndicator::start(const OUString& sText ,

                                              sal_Int32        nRange)

{

    SolarMutexGuard aSolarGuard;

    VclPtr<vcl::Window> pParentWindow = VCLUnoHelper::GetWindow(m_xParentWindow);

    if (!m_pStatusBar)

        m_pStatusBar = VclPtr<StatusBar>::Create(pParentWindow, WB_3DLOOK|WB_BORDER);

    VCLStatusIndicator::impl_recalcLayout(m_pStatusBar, pParentWindow);

    m_pStatusBar->Show();

    m_pStatusBar->StartProgressMode(sText);

    m_pStatusBar->SetProgressValue(0);

    // force repaint!

    pParentWindow->Show();

    pParentWindow->Invalidate(InvalidateFlags::Children);

    pParentWindow->GetOutDev()->Flush();

    m_nRange = nRange;

    m_nValue = 0;

}

void SAL_CALL VCLStatusIndicator::reset()

{

    SolarMutexGuard aSolarGuard;

    if (m_pStatusBar)

    {

        m_pStatusBar->SetProgressValue(0);

        m_pStatusBar->SetText(OUString());

    }

}

void SAL_CALL VCLStatusIndicator::end()

{

    SolarMutexGuard aSolarGuard;

    m_nRange = 0;

    m_nValue = 0;

    if (m_pStatusBar)

    {

        m_pStatusBar->EndProgressMode();

        m_pStatusBar->Show(false);

        m_pStatusBar.disposeAndClear();

    }

}

void SAL_CALL VCLStatusIndicator::setText(const OUString& sText)

{

    SolarMutexGuard aSolarGuard;

    if (m_pStatusBar)

        m_pStatusBar->SetText(sText);

}

void SAL_CALL VCLStatusIndicator::setValue(sal_Int32 nValue)

{

    SolarMutexGuard aSolarGuard;

    if (nValue <= m_nRange)

        m_nValue = nValue;

    else

        m_nValue = m_nRange;

    sal_Int32 nRange = m_nRange;

    nValue = m_nValue;

    // normalize value to fit the range of 0-100%

    sal_uInt16 nPercent = sal::static_int_cast< sal_uInt16 >(

        ::std::min(

            ((nValue*100) / ::std::max(nRange,sal_Int32(1))), sal_Int32(100)));

    if (m_pStatusBar)

        m_pStatusBar->SetProgressValue(nPercent);

}

void VCLStatusIndicator::impl_recalcLayout(vcl::Window* pStatusBar   ,

                                           vcl::Window const * pParentWindow)

{

    if (

        (!pStatusBar   ) ||

        (!pParentWindow)

       )

       return;

    Size aParentSize = pParentWindow->GetSizePixel();

    pStatusBar->setPosSizePixel(0,

                                0,

                                aParentSize.Width(),

                                aParentSize.Height());

}

} // namespace framework

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