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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 <rtl/ustrbuf.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/gdimtf.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/settings.hxx>
+
+#include <cppcanvas/vclfactory.hxx>
+#include <basegfx/range/b2drange.hxx>
+#include <osl/diagnose.h>
+#include <tools/diagnose_ex.h>
+
+#include <com/sun/star/awt/MouseButton.hpp>
+#include <com/sun/star/awt/MouseEvent.hpp>
+#include <com/sun/star/rendering/XBitmap.hpp>
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include <eventqueue.hxx>
+#include <screenupdater.hxx>
+#include <eventmultiplexer.hxx>
+#include <activitiesqueue.hxx>
+#include <slideshowcontext.hxx>
+#include <mouseeventhandler.hxx>
+#include "rehearsetimingsactivity.hxx"
+
+#include <algorithm>
+
+using namespace com::sun::star;
+using namespace com::sun::star::uno;
+
+namespace slideshow::internal {
+
+class RehearseTimingsActivity::WakeupEvent : public Event
+{
+public:
+ WakeupEvent( std::shared_ptr< ::canvas::tools::ElapsedTime > const& pTimeBase,
+ ActivitySharedPtr const& rActivity,
+ ActivitiesQueue & rActivityQueue ) :
+ Event("WakeupEvent"),
+ maTimer(pTimeBase),
+ mnNextTime(0.0),
+ mpActivity(rActivity),
+ mrActivityQueue( rActivityQueue )
+ {}
+
+ WakeupEvent( const WakeupEvent& ) = delete;
+ WakeupEvent& operator=( const WakeupEvent& ) = delete;
+
+ virtual void dispose() override {}
+ virtual bool fire() override
+ {
+ ActivitySharedPtr pActivity( mpActivity.lock() );
+ if( !pActivity )
+ return false;
+
+ return mrActivityQueue.addActivity( pActivity );
+ }
+
+ virtual bool isCharged() const override { return true; }
+ virtual double getActivationTime( double nCurrentTime ) const override
+ {
+ const double nElapsedTime( maTimer.getElapsedTime() );
+
+ return ::std::max( nCurrentTime,
+ nCurrentTime - nElapsedTime + mnNextTime );
+ }
+
+ /// Start the internal timer
+ void start() { maTimer.reset(); }
+
+ /** Set the next timeout this object should generate.
+
+ @param nextTime
+ Absolute time, measured from the last start() call,
+ when this event should wakeup the Activity again. If
+ your time is relative, simply call start() just before
+ every setNextTimeout() call.
+ */
+ void setNextTimeout( double nextTime ) { mnNextTime = nextTime; }
+
+private:
+ ::canvas::tools::ElapsedTime maTimer;
+ double mnNextTime;
+ std::weak_ptr<Activity> mpActivity;
+ ActivitiesQueue& mrActivityQueue;
+};
+
+class RehearseTimingsActivity::MouseHandler : public MouseEventHandler
+{
+public:
+ explicit MouseHandler( RehearseTimingsActivity& rta );
+
+ MouseHandler( const MouseHandler& ) = delete;
+ MouseHandler& operator=( const MouseHandler& ) = delete;
+
+ void reset();
+ bool hasBeenClicked() const { return mbHasBeenClicked; }
+
+ // MouseEventHandler
+ virtual bool handleMousePressed( awt::MouseEvent const & evt ) override;
+ virtual bool handleMouseReleased( awt::MouseEvent const & evt ) override;
+ virtual bool handleMouseDragged( awt::MouseEvent const & evt ) override;
+ virtual bool handleMouseMoved( awt::MouseEvent const & evt ) override;
+
+private:
+ bool isInArea( css::awt::MouseEvent const & evt ) const;
+ void updatePressedState( const bool pressedState ) const;
+
+ RehearseTimingsActivity& mrActivity;
+ bool mbHasBeenClicked;
+ bool mbMouseStartedInArea;
+};
+
+const sal_Int32 LEFT_BORDER_SPACE = 10;
+const sal_Int32 LOWER_BORDER_SPACE = 30;
+
+RehearseTimingsActivity::RehearseTimingsActivity( const SlideShowContext& rContext ) :
+ mrEventQueue(rContext.mrEventQueue),
+ mrScreenUpdater(rContext.mrScreenUpdater),
+ mrEventMultiplexer(rContext.mrEventMultiplexer),
+ mrActivitiesQueue(rContext.mrActivitiesQueue),
+ maElapsedTime( rContext.mrEventQueue.getTimer() ),
+ maViews(),
+ maSpriteRectangle(),
+ maFont( Application::GetSettings().GetStyleSettings().GetLabelFont() ),
+ mpWakeUpEvent(),
+ mpMouseHandler(),
+ maSpriteSizePixel(),
+ mnYOffset(0),
+ mbActive(false),
+ mbDrawPressed(false)
+{
+ maFont.SetFontHeight( maFont.GetFontHeight() * 2 );
+ maFont.SetAverageFontWidth( maFont.GetAverageFontWidth() * 2 );
+ maFont.SetAlignment( ALIGN_BASELINE );
+ maFont.SetColor( COL_BLACK );
+
+ // determine sprite size (in pixel):
+ ScopedVclPtrInstance< VirtualDevice > blackHole;
+ blackHole->EnableOutput(false);
+ blackHole->SetFont( maFont );
+ blackHole->SetMapMode(MapMode(MapUnit::MapPixel));
+ tools::Rectangle rect;
+ const FontMetric metric( blackHole->GetFontMetric() );
+ blackHole->GetTextBoundRect( rect, "XX:XX:XX" );
+ maSpriteSizePixel.setX( rect.getWidth() * 12 / 10 );
+ maSpriteSizePixel.setY( metric.GetLineHeight() * 11 / 10 );
+ mnYOffset = (metric.GetAscent() + (metric.GetLineHeight() / 20));
+
+ for( const auto& rView : rContext.mrViewContainer )
+ viewAdded( rView );
+}
+
+RehearseTimingsActivity::~RehearseTimingsActivity()
+{
+ try
+ {
+ stop();
+ }
+ catch (const uno::Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("slideshow", "");
+ }
+}
+
+std::shared_ptr<RehearseTimingsActivity> RehearseTimingsActivity::create(
+ const SlideShowContext& rContext )
+{
+ std::shared_ptr<RehearseTimingsActivity> pActivity(
+ new RehearseTimingsActivity( rContext ));
+
+ pActivity->mpMouseHandler =
+ std::make_shared<MouseHandler>(*pActivity);
+ pActivity->mpWakeUpEvent =
+ std::make_shared<WakeupEvent>( rContext.mrEventQueue.getTimer(),
+ pActivity,
+ rContext.mrActivitiesQueue );
+
+ rContext.mrEventMultiplexer.addViewHandler( pActivity );
+
+ return pActivity;
+}
+
+void RehearseTimingsActivity::start()
+{
+ maElapsedTime.reset();
+ mbDrawPressed = false;
+ mbActive = true;
+
+ // paint and show all sprites:
+ paintAllSprites();
+ for_each_sprite( []( const ::cppcanvas::CustomSpriteSharedPtr& pSprite )
+ { return pSprite->show(); } );
+
+ mrActivitiesQueue.addActivity( std::dynamic_pointer_cast<Activity>(shared_from_this()) );
+
+ mpMouseHandler->reset();
+ mrEventMultiplexer.addClickHandler(
+ mpMouseHandler, 42 /* highest prio of all, > 3.0 */ );
+ mrEventMultiplexer.addMouseMoveHandler(
+ mpMouseHandler, 42 /* highest prio of all, > 3.0 */ );
+}
+
+double RehearseTimingsActivity::stop()
+{
+ mrEventMultiplexer.removeMouseMoveHandler( mpMouseHandler );
+ mrEventMultiplexer.removeClickHandler( mpMouseHandler );
+
+ mbActive = false; // will be removed from queue
+
+ for_each_sprite( []( const ::cppcanvas::CustomSpriteSharedPtr& pSprite )
+ { return pSprite->hide(); } );
+
+ return maElapsedTime.getElapsedTime();
+}
+
+bool RehearseTimingsActivity::hasBeenClicked() const
+{
+ if (mpMouseHandler)
+ return mpMouseHandler->hasBeenClicked();
+ return false;
+}
+
+// Disposable:
+void RehearseTimingsActivity::dispose()
+{
+ stop();
+
+ mpWakeUpEvent.reset();
+ mpMouseHandler.reset();
+
+ ViewsVecT().swap( maViews );
+}
+
+// Activity:
+double RehearseTimingsActivity::calcTimeLag() const
+{
+ return 0.0;
+}
+
+bool RehearseTimingsActivity::perform()
+{
+ if( !isActive() )
+ return false;
+
+ if( !mpWakeUpEvent )
+ return false;
+
+ mpWakeUpEvent->start();
+ mpWakeUpEvent->setNextTimeout( 0.5 );
+ mrEventQueue.addEvent( mpWakeUpEvent );
+
+ paintAllSprites();
+
+ // sprites changed, need screen update
+ mrScreenUpdater.notifyUpdate();
+
+ return false; // don't reinsert, WakeupEvent will perform
+ // that after the given timeout
+}
+
+bool RehearseTimingsActivity::isActive() const
+{
+ return mbActive;
+}
+
+void RehearseTimingsActivity::dequeued()
+{
+ // not used here
+}
+
+void RehearseTimingsActivity::end()
+{
+ if (isActive())
+ {
+ stop();
+ mbActive = false;
+ }
+}
+
+basegfx::B2DRange RehearseTimingsActivity::calcSpriteRectangle( UnoViewSharedPtr const& rView ) const
+{
+ const Reference<rendering::XBitmap> xBitmap( rView->getCanvas()->getUNOCanvas(),
+ UNO_QUERY );
+ if( !xBitmap.is() )
+ return basegfx::B2DRange();
+
+ const geometry::IntegerSize2D realSize( xBitmap->getSize() );
+ // pixel:
+ basegfx::B2DPoint spritePos(
+ std::min<sal_Int32>( realSize.Width, LEFT_BORDER_SPACE ),
+ std::max<sal_Int32>( 0, realSize.Height - maSpriteSizePixel.getY()
+ - LOWER_BORDER_SPACE ) );
+ basegfx::B2DHomMatrix transformation( rView->getTransformation() );
+ transformation.invert();
+ spritePos *= transformation;
+ basegfx::B2DSize spriteSize( maSpriteSizePixel.getX(),
+ maSpriteSizePixel.getY() );
+ spriteSize *= transformation;
+ return basegfx::B2DRange(
+ spritePos.getX(), spritePos.getY(),
+ spritePos.getX() + spriteSize.getX(),
+ spritePos.getY() + spriteSize.getY() );
+}
+
+void RehearseTimingsActivity::viewAdded( const UnoViewSharedPtr& rView )
+{
+ cppcanvas::CustomSpriteSharedPtr sprite(
+ rView->createSprite( basegfx::B2DSize(
+ maSpriteSizePixel.getX()+2,
+ maSpriteSizePixel.getY()+2 ),
+ 1001.0 )); // sprite should be in front of all
+ // other sprites
+ sprite->setAlpha( 0.8 );
+ const basegfx::B2DRange spriteRectangle(
+ calcSpriteRectangle( rView ) );
+ sprite->move( basegfx::B2DPoint(
+ spriteRectangle.getMinX(),
+ spriteRectangle.getMinY() ) );
+
+ if( maViews.empty() )
+ maSpriteRectangle = spriteRectangle;
+
+ maViews.emplace_back( rView, sprite );
+
+ if (isActive())
+ sprite->show();
+}
+
+void RehearseTimingsActivity::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 RehearseTimingsActivity::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;
+
+ // new sprite pos, transformation might have changed:
+ maSpriteRectangle = calcSpriteRectangle( rView );
+
+ // reposition sprite:
+ aModifiedEntry->second->move( maSpriteRectangle.getMinimum() );
+
+ // sprites changed, need screen update
+ mrScreenUpdater.notifyUpdate( rView, false );
+}
+
+void RehearseTimingsActivity::viewsChanged()
+{
+ if( maViews.empty() )
+ return;
+
+ // new sprite pos, transformation might have changed:
+ maSpriteRectangle = calcSpriteRectangle( maViews.front().first );
+
+ ::basegfx::B2DPoint nMin = maSpriteRectangle.getMinimum();
+ // reposition sprites
+ for_each_sprite( [nMin]( const ::cppcanvas::CustomSpriteSharedPtr& pSprite )
+ { return pSprite->move( nMin ); } );
+
+ // sprites changed, need screen update
+ mrScreenUpdater.notifyUpdate();
+}
+
+void RehearseTimingsActivity::paintAllSprites() const
+{
+ for_each_sprite(
+ [this]( const ::cppcanvas::CustomSpriteSharedPtr& pSprite )
+ { return this->paint( pSprite->getContentCanvas() ); } );
+}
+
+void RehearseTimingsActivity::paint( cppcanvas::CanvasSharedPtr const & canvas ) const
+{
+ // build timer string:
+ const sal_Int32 nTimeSecs =
+ static_cast<sal_Int32>(maElapsedTime.getElapsedTime());
+ OUStringBuffer buf;
+ sal_Int32 n = nTimeSecs / 3600;
+ if (n < 10)
+ buf.append( '0' );
+ buf.append( n );
+ buf.append( ':' );
+ n = ((nTimeSecs % 3600) / 60);
+ if (n < 10)
+ buf.append( '0' );
+ buf.append( n );
+ buf.append( ':' );
+ n = (nTimeSecs % 60);
+ if (n < 10)
+ buf.append( '0' );
+ buf.append( n );
+ const OUString time = buf.makeStringAndClear();
+
+ // create the MetaFile:
+ GDIMetaFile metaFile;
+ ScopedVclPtrInstance< VirtualDevice > blackHole;
+ metaFile.Record( blackHole );
+ metaFile.SetPrefSize( Size( 1, 1 ) );
+ blackHole->EnableOutput(false);
+ blackHole->SetMapMode(MapMode(MapUnit::MapPixel));
+ blackHole->SetFont( maFont );
+ tools::Rectangle rect( 0,0,
+ maSpriteSizePixel.getX(),
+ maSpriteSizePixel.getY());
+ if (mbDrawPressed)
+ {
+ blackHole->SetTextColor( COL_BLACK );
+ blackHole->SetFillColor( COL_LIGHTGRAY );
+ blackHole->SetLineColor( COL_GRAY );
+ }
+ else
+ {
+ blackHole->SetTextColor( COL_BLACK );
+ blackHole->SetFillColor( COL_WHITE );
+ blackHole->SetLineColor( COL_GRAY );
+ }
+ blackHole->DrawRect( rect );
+ blackHole->GetTextBoundRect( rect, time );
+ blackHole->DrawText(
+ Point( (maSpriteSizePixel.getX() - rect.getWidth()) / 2,
+ mnYOffset ), time );
+
+ metaFile.Stop();
+ metaFile.WindStart();
+
+ cppcanvas::RendererSharedPtr renderer(
+ cppcanvas::VCLFactory::createRenderer(
+ canvas, metaFile, cppcanvas::Renderer::Parameters() ) );
+ const bool succ = renderer->draw();
+ OSL_ASSERT( succ );
+}
+
+
+RehearseTimingsActivity::MouseHandler::MouseHandler( RehearseTimingsActivity& rta ) :
+ mrActivity(rta),
+ mbHasBeenClicked(false),
+ mbMouseStartedInArea(false)
+{}
+
+void RehearseTimingsActivity::MouseHandler::reset()
+{
+ mbHasBeenClicked = false;
+ mbMouseStartedInArea = false;
+}
+
+bool RehearseTimingsActivity::MouseHandler::isInArea(
+ awt::MouseEvent const & evt ) const
+{
+ return mrActivity.maSpriteRectangle.isInside(
+ basegfx::B2DPoint( evt.X, evt.Y ) );
+}
+
+void RehearseTimingsActivity::MouseHandler::updatePressedState(
+ const bool pressedState ) const
+{
+ if( pressedState != mrActivity.mbDrawPressed )
+ {
+ mrActivity.mbDrawPressed = pressedState;
+ mrActivity.paintAllSprites();
+
+ mrActivity.mrScreenUpdater.notifyUpdate();
+ }
+}
+
+// MouseEventHandler
+bool RehearseTimingsActivity::MouseHandler::handleMousePressed(
+ awt::MouseEvent const & evt )
+{
+ if( evt.Buttons == awt::MouseButton::LEFT && isInArea(evt) )
+ {
+ mbMouseStartedInArea = true;
+ updatePressedState(true);
+ return true; // consume event
+ }
+ return false;
+}
+
+bool RehearseTimingsActivity::MouseHandler::handleMouseReleased(
+ awt::MouseEvent const & evt )
+{
+ if( evt.Buttons == awt::MouseButton::LEFT && mbMouseStartedInArea )
+ {
+ mbHasBeenClicked = isInArea(evt); // fini if in
+ mbMouseStartedInArea = false;
+ updatePressedState(false);
+ if( !mbHasBeenClicked )
+ return true; // consume event, else next slide (manual advance)
+ }
+ return false;
+}
+
+bool RehearseTimingsActivity::MouseHandler::handleMouseDragged(
+ awt::MouseEvent const & evt )
+{
+ if( mbMouseStartedInArea )
+ updatePressedState( isInArea(evt) );
+ return false;
+}
+
+bool RehearseTimingsActivity::MouseHandler::handleMouseMoved(
+ awt::MouseEvent const & /*evt*/ )
+{
+ return false;
+}
+
+} // namespace presentation
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */