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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include "precompiled_vcl.hxx"
+
+#include "vcl/throbber.hxx"
+#include "vcl/svapp.hxx"
+
+#include <com/sun/star/graphic/XGraphicProvider.hpp>
+#include <com/sun/star/awt/ImageScaleMode.hpp>
+
+#include <comphelper/componentcontext.hxx>
+#include <comphelper/namedvaluecollection.hxx>
+#include <comphelper/processfactory.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/urlobj.hxx>
+
+#include <limits>
+
+using ::com::sun::star::uno::Sequence;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::graphic::XGraphic;
+using ::com::sun::star::graphic::XGraphicProvider;
+using ::com::sun::star::uno::UNO_QUERY_THROW;
+using ::com::sun::star::uno::UNO_QUERY;
+using ::com::sun::star::uno::Exception;
+namespace ImageScaleMode = ::com::sun::star::awt::ImageScaleMode;
+
+//----------------------------------------------------------------------------------------------------------------------
+Throbber::Throbber( Window* i_parentWindow, WinBits i_style, const ImageSet i_imageSet )
+ :ImageControl( i_parentWindow, i_style )
+ ,mbRepeat( sal_True )
+ ,mnStepTime( 100 )
+ ,mnCurStep( 0 )
+ ,mnStepCount( 0 )
+ ,meImageSet( i_imageSet )
+{
+ maWaitTimer.SetTimeout( mnStepTime );
+ maWaitTimer.SetTimeoutHdl( LINK( this, Throbber, TimeOutHdl ) );
+
+ SetScaleMode( ImageScaleMode::None );
+ initImages();
+}
+
+//--------------------------------------------------------------------
+Throbber::Throbber( Window* i_parentWindow, const ResId& i_resId, const ImageSet i_imageSet )
+ :ImageControl( i_parentWindow, i_resId )
+ ,mbRepeat( sal_True )
+ ,mnStepTime( 100 )
+ ,mnCurStep( 0 )
+ ,mnStepCount( 0 )
+ ,meImageSet( i_imageSet )
+{
+ maWaitTimer.SetTimeout( mnStepTime );
+ maWaitTimer.SetTimeoutHdl( LINK( this, Throbber, TimeOutHdl ) );
+
+ SetScaleMode( ImageScaleMode::None );
+ initImages();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+Throbber::~Throbber()
+{
+ maWaitTimer.Stop();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+namespace
+{
+ //..................................................................................................................
+ ::rtl::OUString lcl_getHighContrastURL( ::rtl::OUString const& i_imageURL )
+ {
+ INetURLObject aURL( i_imageURL );
+ if ( aURL.GetProtocol() != INET_PROT_PRIV_SOFFICE )
+ {
+ OSL_VERIFY( aURL.insertName( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "hicontrast" ) ), false, 0 ) );
+ return aURL.GetMainURL( INetURLObject::NO_DECODE );
+ }
+ // 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: unsipported URL scheme - cannot automatically determine HC version!", i_imageURL );
+
+ ::rtl::OUStringBuffer composer;
+ composer.append( i_imageURL.copy( 0, separatorPos ) );
+ composer.appendAscii( "/hicontrast" );
+ composer.append( i_imageURL.copy( separatorPos ) );
+ return composer.makeStringAndClear();
+ }
+
+ //..................................................................................................................
+ ::std::vector< Image > lcl_loadImageSet( const Throbber::ImageSet i_imageSet, const bool i_isHiContrast )
+ {
+ ::std::vector< Image > aImages;
+ ENSURE_OR_RETURN( i_imageSet != Throbber::IMAGES_NONE, "lcl_loadImageSet: illegal image set", aImages );
+
+ const ::comphelper::ComponentContext aContext( ::comphelper::getProcessServiceFactory() );
+ const Reference< XGraphicProvider > xGraphicProvider( aContext.createComponent( "com.sun.star.graphic.GraphicProvider" ), UNO_QUERY_THROW );
+
+ ::std::vector< ::rtl::OUString > aImageURLs( Throbber::getDefaultImageURLs( i_imageSet ) );
+ aImages.reserve( aImageURLs.size() );
+
+ ::comphelper::NamedValueCollection aMediaProperties;
+ for ( ::std::vector< ::rtl::OUString >::const_iterator imageURL = aImageURLs.begin();
+ imageURL != aImageURLs.end();
+ ++imageURL
+ )
+ {
+ Reference< XGraphic > xGraphic;
+ if ( i_isHiContrast )
+ {
+ aMediaProperties.put( "URL", lcl_getHighContrastURL( *imageURL ) );
+ xGraphic.set( xGraphicProvider->queryGraphic( aMediaProperties.getPropertyValues() ), UNO_QUERY );
+ }
+ if ( !xGraphic.is() )
+ {
+ aMediaProperties.put( "URL", *imageURL );
+ xGraphic.set( xGraphicProvider->queryGraphic( aMediaProperties.getPropertyValues() ), UNO_QUERY );
+ }
+ aImages.push_back( Image( xGraphic ) );
+ }
+
+ return aImages;
+ }
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::Resize()
+{
+ ImageControl::Resize();
+
+ if ( meImageSet == IMAGES_AUTO )
+ initImages();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::initImages()
+{
+ if ( meImageSet == IMAGES_NONE )
+ return;
+
+ try
+ {
+ ::std::vector< ::std::vector< Image > > aImageSets;
+ const bool isHiContrast = GetSettings().GetStyleSettings().GetHighContrastMode();
+ if ( meImageSet == IMAGES_AUTO )
+ {
+ aImageSets.push_back( lcl_loadImageSet( IMAGES_16_PX, isHiContrast ) );
+ aImageSets.push_back( lcl_loadImageSet( IMAGES_32_PX, isHiContrast ) );
+ aImageSets.push_back( lcl_loadImageSet( IMAGES_64_PX, isHiContrast ) );
+ }
+ else
+ {
+ aImageSets.push_back( lcl_loadImageSet( meImageSet, isHiContrast ) );
+ }
+
+ // find the best matching image set (size-wise)
+ const ::Size aWindowSizePixel = GetSizePixel();
+ size_t nPreferredSet = 0;
+ if ( aImageSets.size() > 1 )
+ {
+ long nMinimalDistance = ::std::numeric_limits< long >::max();
+ for ( ::std::vector< ::std::vector< Image > >::const_iterator check = aImageSets.begin();
+ check != aImageSets.end();
+ ++check
+ )
+ {
+ ENSURE_OR_CONTINUE( !check->empty(), "Throbber::initImages: illegal image!" );
+ const Size aImageSize = (*check)[0].GetSizePixel();
+
+ if ( ( aImageSize.Width() > aWindowSizePixel.Width() )
+ || ( aImageSize.Height() > aWindowSizePixel.Height() )
+ )
+ // do not use an image set which doesn't fit into the window
+ continue;
+
+ const sal_Int64 distance =
+ ( aWindowSizePixel.Width() - aImageSize.Width() ) * ( aWindowSizePixel.Width() - aImageSize.Width() )
+ + ( aWindowSizePixel.Height() - aImageSize.Height() ) * ( aWindowSizePixel.Height() - aImageSize.Height() );
+ if ( distance < nMinimalDistance )
+ {
+ nMinimalDistance = distance;
+ nPreferredSet = check - aImageSets.begin();
+ }
+ }
+ }
+
+ if ( nPreferredSet < aImageSets.size() )
+ setImageList( aImageSets[nPreferredSet] );
+ }
+ catch( const Exception& )
+ {
+ DBG_UNHANDLED_EXCEPTION();
+ }
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::start()
+{
+ maWaitTimer.Start();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::stop()
+{
+ maWaitTimer.Stop();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+bool Throbber::isRunning() const
+{
+ return maWaitTimer.IsActive();
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::setImageList( ::std::vector< Image > const& i_images )
+{
+ maImageList = i_images;
+
+ mnStepCount = maImageList.size();
+ const Image aInitialImage( mnStepCount ? maImageList[ 0 ] : Image() );
+ SetImage( aInitialImage );
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void Throbber::setImageList( const Sequence< Reference< XGraphic > >& rImageList )
+{
+ ::std::vector< Image > aImages( rImageList.getLength() );
+ ::std::copy(
+ rImageList.getConstArray(),
+ rImageList.getConstArray() + rImageList.getLength(),
+ aImages.begin()
+ );
+ setImageList( aImages );
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+::std::vector< ::rtl::OUString > Throbber::getDefaultImageURLs( const ImageSet i_imageSet )
+{
+ ::std::vector< ::rtl::OUString > aImageURLs;
+
+ sal_Char const* const pResolutions[] = { "16", "32", "64" };
+ size_t const nImageCounts[] = { 6, 12, 12 };
+
+ size_t index = 0;
+ switch ( i_imageSet )
+ {
+ case IMAGES_16_PX: index = 0; break;
+ case IMAGES_32_PX: index = 1; break;
+ case IMAGES_64_PX: index = 2; break;
+ case IMAGES_NONE:
+ case IMAGES_AUTO:
+ OSL_ENSURE( false, "Throbber::getDefaultImageURLs: illegal image set!" );
+ return aImageURLs;
+ }
+
+ aImageURLs.reserve( nImageCounts[index] );
+ for ( size_t i=0; i<nImageCounts[index]; ++i )
+ {
+ ::rtl::OUStringBuffer aURL;
+ aURL.appendAscii( "private:graphicrepository/shared/spinner-" );
+ aURL.appendAscii( pResolutions[index] );
+ aURL.appendAscii( "-" );
+ if ( i < 9 )
+ aURL.appendAscii( "0" );
+ aURL.append ( sal_Int32( i + 1 ) );
+ aURL.appendAscii( ".png" );
+
+ aImageURLs.push_back( aURL.makeStringAndClear() );
+ }
+
+ return aImageURLs;
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+IMPL_LINK( Throbber, TimeOutHdl, void*, EMPTYARG )
+{
+ SolarMutexGuard aGuard;
+ if ( maImageList.empty() )
+ return 0;
+
+ if ( mnCurStep < mnStepCount - 1 )
+ mnCurStep += 1;
+ else
+ {
+ if ( mbRepeat )
+ {
+ // start over
+ mnCurStep = 0;
+ }
+ else
+ {
+ stop();
+ }
+ }
+
+ SetImage( maImageList[ mnCurStep ] );
+
+ return 0;
+}