/* -*- 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 <WindowUpdater.hxx>

#include <drawdoc.hxx>

#include <vcl/outdev.hxx>

#include <vcl/vclptr.hxx>

#include <vcl/window.hxx>

#include <algorithm>

namespace sd {

WindowUpdater::WindowUpdater()

    : mpDocument (nullptr)

{

    maCTLOptions.AddListener(this);

}

WindowUpdater::~WindowUpdater() noexcept

{

    maCTLOptions.RemoveListener(this);

}

void WindowUpdater::RegisterWindow (vcl::Window* pWindow)

{

    if (pWindow != nullptr)

    {

        tWindowList::iterator aWindowIterator (

            ::std::find (

                maWindowList.begin(), maWindowList.end(), pWindow));

        if (aWindowIterator == maWindowList.end())

        {

            // Update the device once right now and add it to the list.

            Update (pWindow->GetOutDev());

            maWindowList.emplace_back(pWindow);

        }

    }

}

void WindowUpdater::UnregisterWindow (vcl::Window* pWindow)

{

    tWindowList::iterator aWindowIterator (

        ::std::find (

            maWindowList.begin(), maWindowList.end(), pWindow));

    if (aWindowIterator != maWindowList.end())

    {

        maWindowList.erase (aWindowIterator);

    }

}

void WindowUpdater::SetDocument (SdDrawDocument* pDocument)

{

    mpDocument = pDocument;

}

/*static*/ void WindowUpdater::Update (OutputDevice* pDevice)

{

    if (pDevice != nullptr)

    {

        UpdateWindow (pDevice);

    }

}

/*static*/ void WindowUpdater::UpdateWindow (OutputDevice* pDevice)

{

    if (pDevice == nullptr)

        return;

    SvtCTLOptions::TextNumerals aNumeralMode (SvtCTLOptions::GetCTLTextNumerals());

    LanguageType aLanguage;

    // Now this is a bit confusing.  The numerals in arabic languages

    // are Hindi numerals and what the western world generally uses are

    // arabic numerals.  The digits used in the Hindi language are not

    // used at all.

    switch (aNumeralMode)

    {

        case SvtCTLOptions::NUMERALS_HINDI:

            aLanguage = LANGUAGE_ARABIC_SAUDI_ARABIA;

            break;

        case SvtCTLOptions::NUMERALS_SYSTEM:

            aLanguage = LANGUAGE_SYSTEM;

            break;

        case SvtCTLOptions::NUMERALS_ARABIC:

        default:

            aLanguage = LANGUAGE_ENGLISH;

            break;

    }

    pDevice->SetDigitLanguage (aLanguage);

}

void WindowUpdater::ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints )

{

    // Set the current state at all registered output devices.

    for (auto& rxWindow : maWindowList)

        Update (rxWindow->GetOutDev());

    // Reformat the document for the modified state to take effect.

    if (mpDocument != nullptr)

        mpDocument->ReformatAllTextObjects();

    // Invalidate the windows to make the modified state visible.

    for (auto& rxWindow : maWindowList)

        rxWindow->Invalidate();

}

} // end of namespace sd

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