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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 <boost/current_function.hpp>
#include <canvas/canvastools.hxx>
#include <comphelper/anytostring.hxx>
#include <cppuhelper/exc_hlp.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/geometry/IntegerSize2D.hpp>
#include "com/sun/star/uno/Reference.hxx"
#include "pointersymbol.hxx"
#include "eventmultiplexer.hxx"
#include <o3tl/compat_functional.hxx>
#include <algorithm>
using namespace com::sun::star;
namespace slideshow {
namespace internal {
const sal_Int32 LEFT_BORDER_SPACE = 10;
const sal_Int32 LOWER_BORDER_SPACE = 10;
PointerSymbolSharedPtr PointerSymbol::create( const uno::Reference<rendering::XBitmap>& xBitmap,
ScreenUpdater& rScreenUpdater,
EventMultiplexer& rEventMultiplexer,
const UnoViewContainer& rViewContainer )
{
PointerSymbolSharedPtr pRet(
new PointerSymbol( xBitmap,
rScreenUpdater,
rViewContainer ));
rEventMultiplexer.addViewHandler( pRet );
return pRet;
}
PointerSymbol::PointerSymbol( uno::Reference<rendering::XBitmap> const & xBitmap,
ScreenUpdater& rScreenUpdater,
const UnoViewContainer& rViewContainer ) :
mxBitmap(xBitmap),
maViews(),
mrScreenUpdater( rScreenUpdater ),
mbVisible(false)
{
std::for_each( rViewContainer.begin(),
rViewContainer.end(),
boost::bind( &PointerSymbol::viewAdded,
this,
_1 ));
}
void PointerSymbol::setVisible( const bool bVisible )
{
if( mbVisible != bVisible )
{
mbVisible = bVisible;
ViewsVecT::const_iterator aIter( maViews.begin() );
ViewsVecT::const_iterator const aEnd ( maViews.end() );
while( aIter != aEnd )
{
if( aIter->second )
{
if( bVisible )
aIter->second->show();
else
aIter->second->hide();
}
++aIter;
}
// sprites changed, need a screen update for this frame.
mrScreenUpdater.requestImmediateUpdate();
}
}
basegfx::B2DPoint PointerSymbol::calcSpritePos( UnoViewSharedPtr const & rView ) const
{
const uno::Reference<rendering::XBitmap> xBitmap( rView->getCanvas()->getUNOCanvas(),
uno::UNO_QUERY_THROW );
const geometry::IntegerSize2D realSize( xBitmap->getSize() );
return basegfx::B2DPoint(
// pos.X pos.Y are given in 0..1, beginning from the upper left corner of the currentSlide.
std::min<sal_Int32>( 0, LEFT_BORDER_SPACE ),
std::max<sal_Int32>( 0, realSize.Height * 1 - mxBitmap->getSize().Height
- LOWER_BORDER_SPACE ) );
}
basegfx::B2DPoint PointerSymbol::calcSpritePos(
UnoViewSharedPtr const & rView, const ::com::sun::star::geometry::RealPoint2D pos) const
{
const uno::Reference<rendering::XBitmap> xBitmap( rView->getCanvas()->getUNOCanvas(),
uno::UNO_QUERY_THROW );
const geometry::IntegerSize2D realSize( xBitmap->getSize() );
const geometry::IntegerSize2D realTranslationOffset ( rView->getTranslationOffset() );
basegfx::B2DPoint newPos(
realTranslationOffset.Width + (realSize.Width - 2 * realTranslationOffset.Width) * pos.X,
realTranslationOffset.Height + (realSize.Height - 2 * realTranslationOffset.Height) * pos.Y);
return newPos;
}
void PointerSymbol::viewAdded( const UnoViewSharedPtr& rView )
{
cppcanvas::CustomSpriteSharedPtr sprite;
try
{
const geometry::IntegerSize2D spriteSize( mxBitmap->getSize() );
sprite = rView->createSprite( basegfx::B2DVector( spriteSize.Width,
spriteSize.Height ),
1000.0 ); // sprite should be in front of all
// other sprites
rendering::ViewState viewState;
canvas::tools::initViewState( viewState );
rendering::RenderState renderState;
canvas::tools::initRenderState( renderState );
sprite->getContentCanvas()->getUNOCanvas()->drawBitmap(
mxBitmap, viewState, renderState );
sprite->setAlpha( 0.9 );
sprite->movePixel( calcSpritePos( rView ) );
if( mbVisible )
sprite->show();
}
catch( uno::Exception& )
{
OSL_FAIL( OUStringToOString(
comphelper::anyToString( cppu::getCaughtException() ),
RTL_TEXTENCODING_UTF8 ).getStr() );
}
maViews.push_back( ViewsVecT::value_type( rView, sprite ) );
}
void PointerSymbol::viewRemoved( const UnoViewSharedPtr& rView )
{
maViews.erase(
std::remove_if(
maViews.begin(), maViews.end(),
boost::bind(
std::equal_to<UnoViewSharedPtr>(),
rView,
// select view:
boost::bind( o3tl::select1st<ViewsVecT::value_type>(), _1 ) ) ),
maViews.end() );
}
void PointerSymbol::viewChanged( const UnoViewSharedPtr& rView )
{
// find entry corresponding to modified view
ViewsVecT::iterator aModifiedEntry(
std::find_if(
maViews.begin(),
maViews.end(),
boost::bind(
std::equal_to<UnoViewSharedPtr>(),
rView,
// select view:
boost::bind( o3tl::select1st<ViewsVecT::value_type>(), _1 ))));
OSL_ASSERT( aModifiedEntry != maViews.end() );
if( aModifiedEntry == maViews.end() )
return;
if( aModifiedEntry->second )
aModifiedEntry->second->movePixel(
calcSpritePos(aModifiedEntry->first) );
}
void PointerSymbol::viewsChanged()
{
// reposition sprites on all views
ViewsVecT::const_iterator aIter( maViews.begin() );
ViewsVecT::const_iterator const aEnd ( maViews.end() );
while( aIter != aEnd )
{
if( aIter->second )
aIter->second->movePixel(
calcSpritePos( aIter->first ));
++aIter;
}
}
void PointerSymbol::viewsChanged(const ::com::sun::star::geometry::RealPoint2D pos)
{
// reposition sprites on all views
ViewsVecT::const_iterator aIter( maViews.begin() );
ViewsVecT::const_iterator const aEnd ( maViews.end() );
while( aIter != aEnd )
{
if( aIter->second ) {
aIter->second->movePixel(
calcSpritePos( aIter->first, pos ));
mrScreenUpdater.notifyUpdate();
mrScreenUpdater.commitUpdates();
}
++aIter;
}
}
} // namespace internal
} // namespace slideshow
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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