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+/* -*- 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 <awt/animatedimagespeer.hxx>
+#include <toolkit/helper/property.hxx>
+
+#include <com/sun/star/awt/Size.hpp>
+#include <com/sun/star/graphic/GraphicProvider.hpp>
+#include <com/sun/star/graphic/XGraphicProvider.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/awt/ImageScaleMode.hpp>
+
+#include <comphelper/namedvaluecollection.hxx>
+#include <comphelper/processfactory.hxx>
+#include <o3tl/safeint.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/urlobj.hxx>
+#include <vcl/toolkit/throbber.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+
+#include <limits>
+#include <string_view>
+
+namespace toolkit
+{
+
+
+ using ::com::sun::star::uno::XComponentContext;
+ using ::com::sun::star::uno::Reference;
+ using ::com::sun::star::uno::XInterface;
+ using ::com::sun::star::uno::UNO_QUERY_THROW;
+ using ::com::sun::star::uno::Exception;
+ using ::com::sun::star::uno::Any;
+ using ::com::sun::star::uno::Sequence;
+ using ::com::sun::star::lang::EventObject;
+ using ::com::sun::star::container::ContainerEvent;
+ using ::com::sun::star::awt::XAnimatedImages;
+ using ::com::sun::star::awt::Size;
+ using ::com::sun::star::graphic::XGraphicProvider;
+ using ::com::sun::star::beans::XPropertySet;
+ using ::com::sun::star::graphic::XGraphic;
+
+ namespace ImageScaleMode = ::com::sun::star::awt::ImageScaleMode;
+
+ //= helper
+
+ namespace
+ {
+
+ OUString lcl_getHighContrastURL( OUString const& i_imageURL )
+ {
+ INetURLObject aURL( i_imageURL );
+ if ( aURL.GetProtocol() != INetProtocol::PrivSoffice )
+ {
+ OSL_VERIFY( aURL.insertName( u"sifr", false, 0 ) );
+ return aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE );
+ }
+ // the private: scheme is not considered to be hierarchical by INetURLObject, so manually insert the
+ // segment
+ const sal_Int32 separatorPos = i_imageURL.indexOf( '/' );
+ ENSURE_OR_RETURN( separatorPos != -1, "lcl_getHighContrastURL: unsupported URL scheme - cannot automatically determine HC version!", i_imageURL );
+
+ OUString composer = OUString::Concat(i_imageURL.subView(0, separatorPos)) + "/sifr" +
+ i_imageURL.subView(separatorPos);
+ return composer;
+ }
+
+
+ bool lcl_ensureImage_throw( Reference< XGraphicProvider > const& i_graphicProvider, const bool i_isHighContrast, const AnimatedImagesPeer::CachedImage& i_cachedImage )
+ {
+ if ( !i_cachedImage.xGraphic.is() )
+ {
+ ::comphelper::NamedValueCollection aMediaProperties;
+ if ( i_isHighContrast )
+ {
+ // try (to find) the high-contrast version of the graphic first
+ aMediaProperties.put( "URL", lcl_getHighContrastURL( i_cachedImage.sImageURL ) );
+ i_cachedImage.xGraphic = i_graphicProvider->queryGraphic( aMediaProperties.getPropertyValues() );
+ }
+ if ( !i_cachedImage.xGraphic.is() )
+ {
+ aMediaProperties.put( "URL", i_cachedImage.sImageURL );
+ i_cachedImage.xGraphic = i_graphicProvider->queryGraphic( aMediaProperties.getPropertyValues() );
+ }
+ }
+ return i_cachedImage.xGraphic.is();
+ }
+
+
+ Size lcl_getGraphicSizePixel( Reference< XGraphic > const& i_graphic )
+ {
+ Size aSizePixel;
+ try
+ {
+ if ( i_graphic.is() )
+ {
+ const Reference< XPropertySet > xGraphicProps( i_graphic, UNO_QUERY_THROW );
+ OSL_VERIFY( xGraphicProps->getPropertyValue("SizePixel") >>= aSizePixel );
+ }
+ }
+ catch( const Exception& )
+ {
+ DBG_UNHANDLED_EXCEPTION("toolkit");
+ }
+ return aSizePixel;
+ }
+
+
+ void lcl_init( Sequence< OUString > const& i_imageURLs, ::std::vector< AnimatedImagesPeer::CachedImage >& o_images )
+ {
+ o_images.resize(0);
+ size_t count = size_t( i_imageURLs.getLength() );
+ o_images.reserve( count );
+ for ( const auto& rImageURL : i_imageURLs )
+ {
+ o_images.emplace_back( AnimatedImagesPeer::CachedImage{ rImageURL, nullptr } );
+ }
+ }
+
+
+ }
+
+
+ //= AnimatedImagesPeer
+
+
+ AnimatedImagesPeer::AnimatedImagesPeer()
+ {
+ }
+
+
+ AnimatedImagesPeer::~AnimatedImagesPeer()
+ {
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::startAnimation()
+ {
+ SolarMutexGuard aGuard;
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if (pThrobber)
+ pThrobber->start();
+ }
+
+ void SAL_CALL AnimatedImagesPeer::stopAnimation()
+ {
+ SolarMutexGuard aGuard;
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if (pThrobber)
+ pThrobber->stop();
+ }
+
+ sal_Bool SAL_CALL AnimatedImagesPeer::isAnimationRunning()
+ {
+ SolarMutexGuard aGuard;
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if (pThrobber)
+ return pThrobber->isRunning();
+ return false;
+ }
+
+ void SAL_CALL AnimatedImagesPeer::setProperty( const OUString& i_propertyName, const Any& i_value )
+ {
+ SolarMutexGuard aGuard;
+
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if ( pThrobber )
+ {
+ VCLXWindow::setProperty( i_propertyName, i_value );
+ return;
+ }
+
+ const sal_uInt16 nPropertyId = GetPropertyId( i_propertyName );
+ switch ( nPropertyId )
+ {
+ case BASEPROPERTY_STEP_TIME:
+ {
+ sal_Int32 nStepTime( 0 );
+ if ( i_value >>= nStepTime )
+ pThrobber->setStepTime( nStepTime );
+ break;
+ }
+ case BASEPROPERTY_AUTO_REPEAT:
+ {
+ bool bRepeat( true );
+ if ( i_value >>= bRepeat )
+ pThrobber->setRepeat( bRepeat );
+ break;
+ }
+
+ case BASEPROPERTY_IMAGE_SCALE_MODE:
+ {
+ sal_Int16 nScaleMode( ImageScaleMode::ANISOTROPIC );
+ VclPtr<ImageControl> pImageControl = GetAsDynamic< ImageControl >();
+ if ( pImageControl && ( i_value >>= nScaleMode ) )
+ pImageControl->SetScaleMode( nScaleMode );
+ }
+ break;
+
+ default:
+ AnimatedImagesPeer_Base::setProperty( i_propertyName, i_value );
+ break;
+ }
+ }
+
+
+ Any SAL_CALL AnimatedImagesPeer::getProperty( const OUString& i_propertyName )
+ {
+ SolarMutexGuard aGuard;
+
+ Any aReturn;
+
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if ( !pThrobber )
+ return VCLXWindow::getProperty( i_propertyName );
+
+ const sal_uInt16 nPropertyId = GetPropertyId( i_propertyName );
+ switch ( nPropertyId )
+ {
+ case BASEPROPERTY_STEP_TIME:
+ aReturn <<= pThrobber->getStepTime();
+ break;
+
+ case BASEPROPERTY_AUTO_REPEAT:
+ aReturn <<= pThrobber->getRepeat();
+ break;
+
+ case BASEPROPERTY_IMAGE_SCALE_MODE:
+ {
+ VclPtr<ImageControl> pImageControl = GetAsDynamic<ImageControl>();
+ aReturn <<= ( pImageControl ? pImageControl->GetScaleMode() : ImageScaleMode::ANISOTROPIC );
+ }
+ break;
+
+ default:
+ aReturn = AnimatedImagesPeer_Base::getProperty( i_propertyName );
+ break;
+ }
+
+ return aReturn;
+ }
+
+
+ void AnimatedImagesPeer::ProcessWindowEvent( const VclWindowEvent& i_windowEvent )
+ {
+ if ( i_windowEvent.GetId() == VclEventId::WindowResize )
+ {
+ updateImageList_nothrow();
+ }
+
+ AnimatedImagesPeer_Base::ProcessWindowEvent( i_windowEvent );
+ }
+
+
+ void AnimatedImagesPeer::impl_updateImages_nolck( const Reference< XInterface >& i_animatedImages )
+ {
+ SolarMutexGuard aGuard;
+
+ updateImageList_nothrow( Reference< XAnimatedImages >( i_animatedImages, UNO_QUERY_THROW ) );
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::elementInserted( const ContainerEvent& i_event )
+ {
+ SolarMutexGuard aGuard;
+ Reference< XAnimatedImages > xAnimatedImages( i_event.Source, UNO_QUERY_THROW );
+
+ sal_Int32 nPosition(0);
+ OSL_VERIFY( i_event.Accessor >>= nPosition );
+ size_t position = size_t( nPosition );
+ if ( position > maCachedImageSets.size() )
+ {
+ OSL_ENSURE( false, "AnimatedImagesPeer::elementInserted: illegal accessor/index!" );
+ updateImageList_nothrow( xAnimatedImages );
+ }
+
+ Sequence< OUString > aImageURLs;
+ OSL_VERIFY( i_event.Element >>= aImageURLs );
+ ::std::vector< CachedImage > aImages;
+ lcl_init( aImageURLs, aImages );
+ maCachedImageSets.insert( maCachedImageSets.begin() + position, aImages );
+ updateImageList_nothrow();
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::elementRemoved( const ContainerEvent& i_event )
+ {
+ SolarMutexGuard aGuard;
+ Reference< XAnimatedImages > xAnimatedImages( i_event.Source, UNO_QUERY_THROW );
+
+ sal_Int32 nPosition(0);
+ OSL_VERIFY( i_event.Accessor >>= nPosition );
+ size_t position = size_t( nPosition );
+ if ( position >= maCachedImageSets.size() )
+ {
+ OSL_ENSURE( false, "AnimatedImagesPeer::elementRemoved: illegal accessor/index!" );
+ updateImageList_nothrow( xAnimatedImages );
+ }
+
+ maCachedImageSets.erase( maCachedImageSets.begin() + position );
+ updateImageList_nothrow();
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::elementReplaced( const ContainerEvent& i_event )
+ {
+ SolarMutexGuard aGuard;
+ Reference< XAnimatedImages > xAnimatedImages( i_event.Source, UNO_QUERY_THROW );
+
+ sal_Int32 nPosition(0);
+ OSL_VERIFY( i_event.Accessor >>= nPosition );
+ size_t position = size_t( nPosition );
+ if ( position >= maCachedImageSets.size() )
+ {
+ OSL_ENSURE( false, "AnimatedImagesPeer::elementReplaced: illegal accessor/index!" );
+ updateImageList_nothrow( xAnimatedImages );
+ }
+
+ Sequence< OUString > aImageURLs;
+ OSL_VERIFY( i_event.Element >>= aImageURLs );
+ ::std::vector< CachedImage > aImages;
+ lcl_init( aImageURLs, aImages );
+ maCachedImageSets[ position ] = aImages;
+ updateImageList_nothrow();
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::disposing( const EventObject& i_event )
+ {
+ VCLXWindow::disposing( i_event );
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::modified( const EventObject& i_event )
+ {
+ impl_updateImages_nolck( i_event.Source );
+ }
+
+
+ void SAL_CALL AnimatedImagesPeer::dispose( )
+ {
+ AnimatedImagesPeer_Base::dispose();
+ SolarMutexGuard aGuard;
+ maCachedImageSets.resize(0);
+ }
+
+ void AnimatedImagesPeer::updateImageList_nothrow()
+ {
+ VclPtr<Throbber> pThrobber = GetAsDynamic<Throbber>();
+ if ( !pThrobber )
+ return;
+
+ try
+ {
+ // collect the image sizes of the different image sets
+ const Reference< XComponentContext > xContext( ::comphelper::getProcessComponentContext() );
+ const Reference< XGraphicProvider > xGraphicProvider( css::graphic::GraphicProvider::create(xContext) );
+
+ const bool isHighContrast = pThrobber->GetSettings().GetStyleSettings().GetHighContrastMode();
+
+ sal_Int32 nPreferredSet = -1;
+ const size_t nImageSetCount = maCachedImageSets.size();
+ if ( nImageSetCount < 2 )
+ {
+ nPreferredSet = sal_Int32( nImageSetCount ) - 1;
+ }
+ else
+ {
+ ::std::vector< Size > aImageSizes( nImageSetCount );
+ for ( size_t nImageSet = 0; nImageSet < nImageSetCount; ++nImageSet )
+ {
+ ::std::vector< CachedImage > const& rImageSet( maCachedImageSets[ nImageSet ] );
+ if ( ( rImageSet.empty() )
+ || ( !lcl_ensureImage_throw( xGraphicProvider, isHighContrast, rImageSet[0] ) )
+ )
+ {
+ aImageSizes[ nImageSet ] = Size( SAL_MAX_INT32, SAL_MAX_INT32 );
+ }
+ else
+ {
+ aImageSizes[ nImageSet ] = lcl_getGraphicSizePixel( rImageSet[0].xGraphic );
+ }
+ }
+
+ // find the set with the smallest difference between window size and image size
+ const ::Size aWindowSizePixel = pThrobber->GetSizePixel();
+ tools::Long nMinimalDistance = ::std::numeric_limits< tools::Long >::max();
+ for ( ::std::vector< Size >::const_iterator check = aImageSizes.begin();
+ check != aImageSizes.end();
+ ++check
+ )
+ {
+ if ( ( check->Width > aWindowSizePixel.Width() )
+ || ( check->Height > aWindowSizePixel.Height() )
+ )
+ // do not use an image set which doesn't fit into the window
+ continue;
+
+ const sal_Int64 distance =
+ ( aWindowSizePixel.Width() - check->Width ) * ( aWindowSizePixel.Width() - check->Width )
+ + ( aWindowSizePixel.Height() - check->Height ) * ( aWindowSizePixel.Height() - check->Height );
+ if ( distance < nMinimalDistance )
+ {
+ nMinimalDistance = distance;
+ nPreferredSet = check - aImageSizes.begin();
+ }
+ }
+ }
+
+ // found a set?
+ std::vector< Image > aImages;
+ if ( ( nPreferredSet >= 0 ) && ( o3tl::make_unsigned( nPreferredSet ) < nImageSetCount ) )
+ {
+ // => set the images
+ ::std::vector< CachedImage > const& rImageSet( maCachedImageSets[ nPreferredSet ] );
+ aImages.resize( rImageSet.size() );
+ sal_Int32 imageIndex = 0;
+ for ( const auto& rCachedImage : rImageSet )
+ {
+ lcl_ensureImage_throw( xGraphicProvider, isHighContrast, rCachedImage );
+ aImages[ imageIndex++ ] = Image(rCachedImage.xGraphic);
+ }
+ }
+ pThrobber->setImageList( std::move(aImages) );
+ }
+ catch( const Exception& )
+ {
+ DBG_UNHANDLED_EXCEPTION("toolkit");
+ }
+ }
+
+
+ void AnimatedImagesPeer::updateImageList_nothrow( const Reference< XAnimatedImages >& i_images )
+ {
+ try
+ {
+ const sal_Int32 nImageSetCount = i_images->getImageSetCount();
+ maCachedImageSets.resize(0);
+ for ( sal_Int32 set = 0; set < nImageSetCount; ++set )
+ {
+ const Sequence< OUString > aImageURLs( i_images->getImageSet( set ) );
+ ::std::vector< CachedImage > aImages;
+ lcl_init( aImageURLs, aImages );
+ maCachedImageSets.push_back( aImages );
+ }
+
+ updateImageList_nothrow();
+ }
+ catch( const Exception& )
+ {
+ DBG_UNHANDLED_EXCEPTION("toolkit");
+ }
+ }
+
+} // namespace toolkit
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */