/* -*- 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 <uielement/imagebuttontoolbarcontroller.hxx>

#include <framework/addonsoptions.hxx>

#include <com/sun/star/uno/XComponentContext.hpp>

#include <comphelper/getexpandeduri.hxx>

#include <comphelper/processfactory.hxx>

#include <tools/stream.hxx>

#include <unotools/ucbstreamhelper.hxx>

#include <vcl/svapp.hxx>

#include <vcl/graph.hxx>

#include <vcl/graphicfilter.hxx>

#include <vcl/toolbox.hxx>

#include <svtools/miscopt.hxx>

#include <memory>

using namespace ::com::sun::star;

using namespace ::com::sun::star::uno;

using namespace ::com::sun::star::beans;

using namespace ::com::sun::star::frame;

const ::Size  aImageSizeSmall( 16, 16 );

const ::Size  aImageSizeBig( 26, 26 );

namespace framework

{

static void SubstituteVariables( OUString& aURL )

{

    aURL = comphelper::getExpandedUri(

        comphelper::getProcessComponentContext(), aURL);

}

ImageButtonToolbarController::ImageButtonToolbarController(

    const Reference< XComponentContext >&    rxContext,

    const Reference< XFrame >&               rFrame,

    ToolBox*                                 pToolbar,

    ToolBoxItemId                            nID,

    const OUString&                          aCommand ) :

    ComplexToolbarController( rxContext, rFrame, pToolbar, nID, aCommand )

{

    bool bBigImages( SvtMiscOptions::AreCurrentSymbolsLarge() );

    Image aImage(AddonsOptions().GetImageFromURL(aCommand, bBigImages, true));

    // Height will be controlled by scaling according to button height

    m_xToolbar->SetItemImage( m_nID, aImage );

}

Unexecuted instantiation: framework::ImageButtonToolbarController::ImageButtonToolbarController(com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&, com::sun::star::uno::Reference<com::sun::star::frame::XFrame> const&, ToolBox*, o3tl::strong_int<unsigned short, ToolBoxItemIdTag>, rtl::OUString const&)

Unexecuted instantiation: framework::ImageButtonToolbarController::ImageButtonToolbarController(com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&, com::sun::star::uno::Reference<com::sun::star::frame::XFrame> const&, ToolBox*, o3tl::strong_int<unsigned short, ToolBoxItemIdTag>, rtl::OUString const&)

ImageButtonToolbarController::~ImageButtonToolbarController()

{

}

void ImageButtonToolbarController::executeControlCommand( const css::frame::ControlCommand& rControlCommand )

{

    SolarMutexGuard aSolarMutexGuard;

    // i73486 to be downward compatible use old and "wrong" also!

    if( rControlCommand.Command != "SetImag" &&

        rControlCommand.Command != "SetImage" )

        return;

    for ( const NamedValue& rArg : rControlCommand.Arguments )

    {

        if ( rArg.Name == "URL" )

        {

            OUString aURL;

            rArg.Value >>= aURL;

            SubstituteVariables( aURL );

            Image aImage;

            if ( ReadImageFromURL( SvtMiscOptions::AreCurrentSymbolsLarge(),

                                   aURL,

                                   aImage ))

            {

                m_xToolbar->SetItemImage( m_nID, aImage );

                // send notification

                uno::Sequence< beans::NamedValue > aInfo { { u"URL"_ustr, css::uno::Any(aURL) } };

                addNotifyInfo( u"ImageChanged"_ustr,

                            getDispatchFromCommand( m_aCommandURL ),

                            aInfo );

                break;

            }

        }

    }

}

// static

bool ImageButtonToolbarController::ReadImageFromURL( bool bBigImage, const OUString& aImageURL, Image& aImage )

{

    std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream( aImageURL, StreamMode::STD_READ ));

    if ( !pStream || ( pStream->GetErrorCode() != ERRCODE_NONE ))

        return false;

    // Use graphic class to also support more graphic formats (bmp,png,...)

    Graphic aGraphic;

    GraphicFilter& rGF = GraphicFilter::GetGraphicFilter();

    rGF.ImportGraphic( aGraphic, u"", *pStream );

    Bitmap aBitmap = aGraphic.GetBitmap();

    const ::Size aSize = bBigImage ? aImageSizeBig : aImageSizeSmall; // Sizes used for toolbar images

    ::Size aBmpSize = aBitmap.GetSizePixel();

    if ( !aBmpSize.IsEmpty() )

    {

        ::Size aNoScaleSize( aBmpSize.Width(), aSize.Height() );

        if ( aBmpSize != aNoScaleSize )

            aBitmap.Scale( aNoScaleSize, BmpScaleFlag::BestQuality );

        aImage = Image( aBitmap );

        return true;

    }

    return false;

}

} // namespace

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