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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 <canvas/canvastools.hxx>
#include <cppcanvas/customsprite.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/presentation/XSlideShowView.hpp>
#include <tools/diagnose_ex.h>
#include "pointersymbol.hxx"
#include <eventmultiplexer.hxx>
#include <algorithm>
using namespace com::sun::star;
namespace slideshow::internal {
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 ),
maPos(),
mbVisible(false)
{
for( const auto& rView : rViewContainer )
viewAdded( rView );
}
void PointerSymbol::setVisible( const bool bVisible )
{
if( mbVisible == bVisible )
return;
mbVisible = bVisible;
for( const auto& rView : maViews )
{
if( rView.second )
{
if( bVisible )
rView.second->show();
else
rView.second->hide();
}
}
// sprites changed, need a screen update for this frame.
mrScreenUpdater.requestImmediateUpdate();
}
basegfx::B2DPoint PointerSymbol::calcSpritePos(UnoViewSharedPtr const & rView) const
{
const awt::Rectangle aViewArea( rView->getUnoView()->getCanvasArea() );
const geometry::IntegerSize2D realTranslationOffset ( rView->getTranslationOffset() );
return basegfx::B2DPoint(
realTranslationOffset.Width + ((aViewArea.Width - aViewArea.X) - 2 * realTranslationOffset.Width) * maPos.X,
realTranslationOffset.Height + ((aViewArea.Height - aViewArea.Y) - 2 * realTranslationOffset.Height) * maPos.Y);
}
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& )
{
TOOLS_WARN_EXCEPTION( "slideshow", "" );
}
maViews.emplace_back( rView, sprite );
}
void PointerSymbol::viewRemoved( const UnoViewSharedPtr& rView )
{
maViews.erase(
std::remove_if(
maViews.begin(), maViews.end(),
[&rView]
( const ViewsVecT::value_type& cp )
{ return rView == cp.first; } ),
maViews.end() );
}
void PointerSymbol::viewChanged( const UnoViewSharedPtr& rView )
{
// find entry corresponding to modified view
ViewsVecT::iterator aModifiedEntry(
std::find_if(
maViews.begin(),
maViews.end(),
[&rView]
( const ViewsVecT::value_type& cp )
{ return rView == cp.first; } ) );
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
for( const auto& rView : maViews )
{
if( rView.second )
rView.second->movePixel(
calcSpritePos( rView.first ) );
}
}
void PointerSymbol::viewsChanged(const geometry::RealPoint2D pos)
{
if( pos.X == maPos.X && pos.Y == maPos.Y )
return;
maPos = pos;
// reposition sprites on all views
for( const auto& rView : maViews )
{
if( rView.second )
{
rView.second->movePixel(
calcSpritePos( rView.first ) );
mrScreenUpdater.notifyUpdate();
mrScreenUpdater.commitUpdates();
}
}
}
} // namespace slideshow::internal
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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