From cca0b9ae02603ab88ec7d8810aab2a8a1b4efda2 Mon Sep 17 00:00:00 2001 From: Siqi LIU Date: Wed, 24 Jul 2013 18:47:16 +0200 Subject: patch for review Change-Id: I86ac0123e0a7073eaf6b971458d2c7c984a6c6fa --- slideshow/source/engine/pointersymbol.cxx | 214 ++++++++++++++++++++++++++++++ slideshow/source/engine/pointersymbol.hxx | 96 ++++++++++++++ 2 files changed, 310 insertions(+) create mode 100644 slideshow/source/engine/pointersymbol.cxx create mode 100644 slideshow/source/engine/pointersymbol.hxx (limited to 'slideshow/source') diff --git a/slideshow/source/engine/pointersymbol.cxx b/slideshow/source/engine/pointersymbol.cxx new file mode 100644 index 000000000000..474db63d7070 --- /dev/null +++ b/slideshow/source/engine/pointersymbol.cxx @@ -0,0 +1,214 @@ +/* -*- 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 +#include + +#include +#include + +#include +#include + +#include + +#include "pointersymbol.hxx" +#include "eventmultiplexer.hxx" + +#include +#include + + +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& xBitmap, + ScreenUpdater& rScreenUpdater, + EventMultiplexer& rEventMultiplexer, + const UnoViewContainer& rViewContainer ) +{ + PointerSymbolSharedPtr pRet( + new PointerSymbol( xBitmap, + rScreenUpdater, + rViewContainer )); + + rEventMultiplexer.addViewHandler( pRet ); + + return pRet; +} + +PointerSymbol::PointerSymbol( uno::Reference 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 ::com::sun::star::geometry::RealPoint2D& pos) const +{ + const uno::Reference xBitmap( rView->getCanvas()->getUNOCanvas(), + uno::UNO_QUERY_THROW ); + const geometry::IntegerSize2D realSize( xBitmap->getSize() ); + return basegfx::B2DPoint( + std::min( realSize.Width * pos.X, LEFT_BORDER_SPACE ), + std::max( 0, realSize.Height * (1-pos.Y) - mxBitmap->getSize().Height + - LOWER_BORDER_SPACE ) ); +} + +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(), + rView, + // select view: + boost::bind( o3tl::select1st(), _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(), + rView, + // select view: + boost::bind( o3tl::select1st(), _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 )); + ++aIter; + } +} + +} // namespace internal +} // namespace presentation + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/slideshow/source/engine/pointersymbol.hxx b/slideshow/source/engine/pointersymbol.hxx new file mode 100644 index 000000000000..641626eb2ebe --- /dev/null +++ b/slideshow/source/engine/pointersymbol.hxx @@ -0,0 +1,96 @@ +/* -*- 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/. + * + */ + +#ifndef POINTERSYMBOL_HXX_INCLUDED +#define POINTERSYMBOL_HXX_INCLUDED + +#include +#include + +#include "vieweventhandler.hxx" +#include "screenupdater.hxx" +#include "eventmultiplexer.hxx" +#include "unoview.hxx" + +#include +#include +#include // for noncopyable +#include + +namespace slideshow { +namespace internal { + +class EventMultiplexer; +typedef boost::shared_ptr PointerSymbolSharedPtr; + +class PointerSymbol : public ViewEventHandler, + private ::boost::noncopyable +{ +public: + static PointerSymbolSharedPtr create( const ::com::sun::star::uno::Reference< + ::com::sun::star::rendering::XBitmap>& xBitmap, + ScreenUpdater& rScreenUpdater, + EventMultiplexer& rEventMultiplexer, + const UnoViewContainer& rViewContainer ); + + /** Shows the pointer symbol. + */ + void show() { setVisible(true); } + + /** Hides the pointer symbol. + */ + void hide() { setVisible(false); } + + virtual void viewsChanged(const ::com::sun::star::geometry::RealPoint2D& pos); + +private: + PointerSymbol( const ::com::sun::star::uno::Reference< + ::com::sun::star::rendering::XBitmap>& xBitmap, + ScreenUpdater& rScreenUpdater, + const UnoViewContainer& rViewContainer ); + + // ViewEventHandler + virtual void viewAdded( const UnoViewSharedPtr& rView ); + virtual void viewRemoved( const UnoViewSharedPtr& rView ); + virtual void viewChanged( const UnoViewSharedPtr& rView ); + virtual void viewsChanged(); + + void setVisible( const bool bVisible ); + + basegfx::B2DPoint calcSpritePos( UnoViewSharedPtr const & rView, const ::com::sun::star::geometry::RealPoint2D& pos = ::com::sun::star::geometry::RealPoint2D(0, 0) ) const; + + template + void for_each_sprite( func_type const & func ) const + { + ViewsVecT::const_iterator iPos( maViews.begin() ); + const ViewsVecT::const_iterator iEnd( maViews.end() ); + for ( ; iPos != iEnd; ++iPos ) + if( iPos->second ) + func( iPos->second ); + } + + typedef ::std::vector< + ::std::pair > ViewsVecT; + + ::com::sun::star::uno::Reference< + ::com::sun::star::rendering::XBitmap> mxBitmap; + + ViewsVecT maViews; + ScreenUpdater& mrScreenUpdater; + bool mbVisible; +}; + +} // namespace internal +} // namespace presentation + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit