/* -*- 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 <sfx2/sidebar/Tools.hxx>

#include <sfx2/sidebar/Theme.hxx>

#include <sfx2/imagemgr.hxx>
#include <comphelper/processfactory.hxx>
#include <comphelper/namedvaluecollection.hxx>
#include <vcl/gradient.hxx>

#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/graphic/GraphicProvider.hpp>
#include <com/sun/star/util/URLTransformer.hpp>
#include <com/sun/star/frame/ModuleManager.hpp>

#include <cstring>

using namespace css;
using namespace cssu;


namespace sfx2 { namespace sidebar {

Image Tools::GetImage (
    const ::rtl::OUString& rsImageURL,
    const ::rtl::OUString& rsHighContrastImageURL,
    const Reference<frame::XFrame>& rxFrame)
{
    if (Theme::IsHighContrastMode())
        return GetImage(rsHighContrastImageURL, rxFrame);
    else
        return GetImage(rsImageURL, rxFrame);
}




Image Tools::GetImage (
    const ::rtl::OUString& rsURL,
    const Reference<frame::XFrame>& rxFrame)
{
    if (rsURL.getLength() > 0)
    {
        const sal_Char  sUnoCommandPrefix[] = ".uno:";
        const sal_Char  sCommandImagePrefix[] = "private:commandimage/";
        const sal_Int32 nCommandImagePrefixLength = strlen(sCommandImagePrefix);

        if (rsURL.startsWith(sUnoCommandPrefix))
        {
            const Image aPanelImage (::GetImage(rxFrame, rsURL, false));
            return aPanelImage;
        }
        else if (rsURL.startsWith(sCommandImagePrefix))
        {
            ::rtl::OUStringBuffer aCommandName;
            aCommandName.appendAscii(sUnoCommandPrefix);
            aCommandName.append(rsURL.copy(nCommandImagePrefixLength));
            const ::rtl::OUString sCommandName (aCommandName.makeStringAndClear());

            const Image aPanelImage (::GetImage(rxFrame, sCommandName, false));
            return aPanelImage;
        }
        else
        {
            const Reference<XComponentContext> xContext (::comphelper::getProcessComponentContext());
            const Reference<graphic::XGraphicProvider> xGraphicProvider =
                graphic::GraphicProvider::create( xContext );
            ::comphelper::NamedValueCollection aMediaProperties;
            aMediaProperties.put("URL", rsURL);
            const Reference<graphic::XGraphic> xGraphic (
                xGraphicProvider->queryGraphic(aMediaProperties.getPropertyValues()),
                UNO_QUERY);
            if (xGraphic.is())
                return Image(xGraphic);
        }
    }
    return Image();
}




css::awt::Gradient Tools::VclToAwtGradient (const Gradient aVclGradient)
{
    css::awt::Gradient aAwtGradient (
        awt::GradientStyle(aVclGradient.GetStyle()),
        aVclGradient.GetStartColor().GetRGBColor(),
        aVclGradient.GetEndColor().GetRGBColor(),
        aVclGradient.GetAngle(),
        aVclGradient.GetBorder(),
        aVclGradient.GetOfsX(),
        aVclGradient.GetOfsY(),
        aVclGradient.GetStartIntensity(),
        aVclGradient.GetEndIntensity(),
        aVclGradient.GetSteps());
    return aAwtGradient;
}




Gradient Tools::AwtToVclGradient (const css::awt::Gradient aAwtGradient)
{
    Gradient aVclGradient (
        GradientStyle(aAwtGradient.Style),
        aAwtGradient.StartColor,
        aAwtGradient.EndColor);
    aVclGradient.SetAngle(aAwtGradient.Angle);
    aVclGradient.SetBorder(aAwtGradient.Border);
    aVclGradient.SetOfsX(aAwtGradient.XOffset);
    aVclGradient.SetOfsY(aAwtGradient.YOffset);
    aVclGradient.SetStartIntensity(aAwtGradient.StartIntensity);
    aVclGradient.SetEndIntensity(aAwtGradient.EndIntensity);
    aVclGradient.SetSteps(aAwtGradient.StepCount);

    return aVclGradient;
}




util::URL Tools::GetURL (const ::rtl::OUString& rsCommand)
{
    util::URL aURL;
    aURL.Complete = rsCommand;

    const Reference<XComponentContext> xComponentContext (::comphelper::getProcessComponentContext());
    const Reference<util::XURLTransformer> xParser = util::URLTransformer::create( xComponentContext );
    xParser->parseStrict(aURL);

    return aURL;
}




Reference<frame::XDispatch> Tools::GetDispatch (
    const cssu::Reference<css::frame::XFrame>& rxFrame,
    const util::URL& rURL)
{
    Reference<frame::XDispatchProvider> xProvider (rxFrame, UNO_QUERY_THROW);
    Reference<frame::XDispatch> xDispatch (xProvider->queryDispatch(rURL, ::rtl::OUString(), 0));
    return xDispatch;
}




::rtl::OUString Tools::GetModuleName (
    const cssu::Reference<css::frame::XFrame>& rxFrame)
{
    if ( ! rxFrame.is() || ! rxFrame->getController().is())
        return ::rtl::OUString();

    try
    {
        const Reference<XComponentContext> xComponentContext (::comphelper::getProcessComponentContext());
        const Reference<frame::XModuleManager> xModuleManager = frame::ModuleManager::create( xComponentContext );
        return xModuleManager->identify(rxFrame);
    }
    catch (const Exception&)
    {
        // Ignored.
    }
    return ::rtl::OUString();
}


} } // end of namespace sfx2::sidebar

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