/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"

// must be first
#include <canvas/debug.hxx>
#include <tools/diagnose_ex.h>
#include <canvas/verbosetrace.hxx>

#include <comphelper/anytostring.hxx>
#include <cppuhelper/exc_hlp.hxx>

#include "externalshapebase.hxx"
#include "eventmultiplexer.hxx"
#include "vieweventhandler.hxx"
#include "intrinsicanimationeventhandler.hxx"
#include "tools.hxx"

#include <boost/noncopyable.hpp>


using namespace ::com::sun::star;


namespace slideshow
{
    namespace internal
    {
        class ExternalShapeBase::ExternalShapeBaseListener : public ViewEventHandler,
                                                             public IntrinsicAnimationEventHandler,
                                                             private boost::noncopyable
        {
        public:
            explicit ExternalShapeBaseListener( ExternalShapeBase& rBase ) :
                mrBase( rBase )
            {}


        private:
            // ViewEventHandler
            // -------------------------------------------------

            virtual void viewAdded( const UnoViewSharedPtr& ) {}
            virtual void viewRemoved( const UnoViewSharedPtr& ) {}
            virtual void viewChanged( const UnoViewSharedPtr& rView ) 
            { 
                mrBase.implViewChanged(rView); 
            }
            virtual void viewsChanged()
            { 
                mrBase.implViewsChanged(); 
            }


            // IntrinsicAnimationEventHandler
            // -------------------------------------------------

            virtual bool enableAnimations()
            { 
                return mrBase.implStartIntrinsicAnimation(); 
            }
            virtual bool disableAnimations()
            { 
                return mrBase.implEndIntrinsicAnimation(); 
            }

            ExternalShapeBase& mrBase;
        };


        ExternalShapeBase::ExternalShapeBase( const uno::Reference< drawing::XShape >& 	xShape,
                                              double									nPrio,
                                              const SlideShowContext&                   rContext ) :
            mxComponentContext( rContext.mxComponentContext ),
            mxShape( xShape ),
            mpListener( new ExternalShapeBaseListener(*this) ),
            mpShapeManager( rContext.mpSubsettableShapeManager ),
            mrEventMultiplexer( rContext.mrEventMultiplexer ),
            mnPriority( nPrio ), // TODO(F1): When ZOrder someday becomes usable: make this ( getAPIShapePrio( xShape ) ),
            maBounds( getAPIShapeBounds( xShape ) )
        {
            ENSURE_OR_THROW( mxShape.is(), "ExternalShapeBase::ExternalShapeBase(): Invalid XShape" );

            mpShapeManager->addIntrinsicAnimationHandler( mpListener );
            mrEventMultiplexer.addViewHandler( mpListener );
        }

		// ---------------------------------------------------------------------

        ExternalShapeBase::~ExternalShapeBase()
        {
            try
            {
                mrEventMultiplexer.removeViewHandler( mpListener );
                mpShapeManager->removeIntrinsicAnimationHandler( mpListener );
            }
            catch (uno::Exception &) 
            {
                OSL_ENSURE( false, rtl::OUStringToOString(
                                comphelper::anyToString(
                                    cppu::getCaughtException() ),
                                RTL_TEXTENCODING_UTF8 ).getStr() );
            }
        }

		// ---------------------------------------------------------------------

        uno::Reference< drawing::XShape > ExternalShapeBase::getXShape() const
        {
            return mxShape;
        }

		// ---------------------------------------------------------------------
		        
        void ExternalShapeBase::play()
        {
            implStartIntrinsicAnimation();
        }

		// ---------------------------------------------------------------------

        void ExternalShapeBase::stop()
        {
            implEndIntrinsicAnimation();
        }

		// ---------------------------------------------------------------------

        void ExternalShapeBase::pause()
        {
            implPauseIntrinsicAnimation();
        }

		// ---------------------------------------------------------------------
		
        bool ExternalShapeBase::isPlaying() const
        {
            return implIsIntrinsicAnimationPlaying();
        }

		// ---------------------------------------------------------------------

        void ExternalShapeBase::setMediaTime(double fTime)
        {
            implSetIntrinsicAnimationTime(fTime);
        }

		// ---------------------------------------------------------------------

        bool ExternalShapeBase::update() const
        {
			return render();
        }

		// ---------------------------------------------------------------------
		
        bool ExternalShapeBase::render() const
        {
            if( maBounds.getRange().equalZero() )
            {
                // zero-sized shapes are effectively invisible,
                // thus, we save us the rendering...
                return true;
            }

            return implRender( maBounds );
        }

		// ---------------------------------------------------------------------
		
        bool ExternalShapeBase::isContentChanged() const
		{
			return true;
        }

		// ---------------------------------------------------------------------
		
        ::basegfx::B2DRectangle ExternalShapeBase::getBounds() const
        {
        	return maBounds;
        }

		// ---------------------------------------------------------------------

        ::basegfx::B2DRectangle ExternalShapeBase::getDomBounds() const
        {
            return maBounds;
        }

		// ---------------------------------------------------------------------
		
        ::basegfx::B2DRectangle ExternalShapeBase::getUpdateArea() const
        {
            return maBounds;
        }

		// ---------------------------------------------------------------------
				
        bool ExternalShapeBase::isVisible() const
		{
			return true;
		}

		// ---------------------------------------------------------------------
		
        double ExternalShapeBase::getPriority() const
        {
            return mnPriority;
        }

		// ---------------------------------------------------------------------
						
        bool ExternalShapeBase::isBackgroundDetached() const
        {
            // external shapes always have their own window/surface
			return true;
        }

    }
}