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 * 
 * 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.
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 *************************************************************/


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

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

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

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/range/b2irange.hxx>
#include <basegfx/tools/canvastools.hxx>

#include <cppcanvas/spritecanvas.hxx>
#include <canvas/canvastools.hxx>

#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/XMultiComponentFactory.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/util/XCloseable.hpp>
#include <com/sun/star/awt/WindowDescriptor.hpp>
#include <com/sun/star/awt/XToolkit.hpp>
#include <com/sun/star/awt/XWindow2.hpp>
#include <com/sun/star/awt/XWindowPeer.hpp>
#include <com/sun/star/awt/WindowAttribute.hpp>
#include <com/sun/star/awt/VclWindowPeerAttribute.hpp>
#include <com/sun/star/awt/PosSize.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/frame/XSynchronousFrameLoader.hpp>

#include "viewappletshape.hxx"
#include "tools.hxx"


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

namespace slideshow
{
    namespace internal
    {
        ViewAppletShape::ViewAppletShape( const ViewLayerSharedPtr&                       rViewLayer,
                                          const uno::Reference< drawing::XShape >&        rxShape,
                                          const ::rtl::OUString&                          rServiceName,
                                          const char**                                    pPropCopyTable,
                                          sal_Size                                        nNumPropEntries,
                                          const uno::Reference< uno::XComponentContext >& rxContext ) :
			mpViewLayer( rViewLayer ),
            mxViewer(),
            mxFrame(),
            mxComponentContext( rxContext )
        {
            ENSURE_OR_THROW( rxShape.is(), "ViewAppletShape::ViewAppletShape(): Invalid Shape" );
            ENSURE_OR_THROW( mpViewLayer, "ViewAppletShape::ViewAppletShape(): Invalid View" );
            ENSURE_OR_THROW( mpViewLayer->getCanvas(), "ViewAppletShape::ViewAppletShape(): Invalid ViewLayer canvas" );
            ENSURE_OR_THROW( mxComponentContext.is(), "ViewAppletShape::ViewAppletShape(): Invalid component context" );

            uno::Reference<lang::XMultiComponentFactory> xFactory( 
                mxComponentContext->getServiceManager(),
                uno::UNO_QUERY_THROW );

            mxViewer.set( xFactory->createInstanceWithContext( rServiceName,
                                                               mxComponentContext), 
                          uno::UNO_QUERY_THROW );

            uno::Reference< beans::XPropertySet > xShapePropSet( rxShape,
                                                                 uno::UNO_QUERY_THROW );
            uno::Reference< beans::XPropertySet > mxViewerPropSet( mxViewer,
                                                                   uno::UNO_QUERY_THROW );

            // copy shape properties to applet viewer
            ::rtl::OUString aPropName;
            for( sal_Size i=0; i<nNumPropEntries; ++i )
            {
                aPropName = ::rtl::OUString::createFromAscii( pPropCopyTable[i] );
                mxViewerPropSet->setPropertyValue( aPropName,
                                                   xShapePropSet->getPropertyValue( 
                                                       aPropName ));
            }
        }

		// ---------------------------------------------------------------------
				
		ViewAppletShape::~ViewAppletShape()
		{		
            try
            {
                endApplet();
            }
            catch (uno::Exception &) 
            {
                OSL_ENSURE( false, rtl::OUStringToOString(
                                comphelper::anyToString(
                                    cppu::getCaughtException() ),
                                RTL_TEXTENCODING_UTF8 ).getStr() );
            }
		}

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

        ViewLayerSharedPtr ViewAppletShape::getViewLayer() const
        {
            return mpViewLayer;
        }

		// ---------------------------------------------------------------------
		
        bool ViewAppletShape::startApplet( const ::basegfx::B2DRectangle& rBounds )
        {
            ENSURE_OR_RETURN_FALSE( mpViewLayer && mpViewLayer->getCanvas() && mpViewLayer->getCanvas()->getUNOCanvas().is(),
                               "ViewAppletShape::startApplet(): Invalid or disposed view" );
            try
            {
                ::cppcanvas::CanvasSharedPtr pCanvas = mpViewLayer->getCanvas();
                    
                uno::Reference< beans::XPropertySet > xPropSet( pCanvas->getUNOCanvas()->getDevice(),
                                                                uno::UNO_QUERY_THROW );
            
                uno::Reference< awt::XWindow2 > xParentWindow( 
                    xPropSet->getPropertyValue( 
                        ::rtl::OUString::createFromAscii( "Window" )),
                    uno::UNO_QUERY_THROW );

                uno::Reference<lang::XMultiComponentFactory> xFactory( 
                    mxComponentContext->getServiceManager() );
			
                if( xFactory.is() )
                {
                    // create an awt window to contain the applet
                    // ==========================================

                    uno::Reference< awt::XToolkit > xToolkit(
                        xFactory->createInstanceWithContext( 
                            ::rtl::OUString::createFromAscii( "com.sun.star.awt.Toolkit" ),
                            mxComponentContext ),
                        uno::UNO_QUERY_THROW );

                    awt::WindowDescriptor aOwnWinDescriptor( awt::WindowClass_SIMPLE,
                                                             ::rtl::OUString(),
                                                             uno::Reference< awt::XWindowPeer >(xParentWindow,
                                                                                                uno::UNO_QUERY_THROW),
                                                             0,
                                                             awt::Rectangle(),
                                                             awt::WindowAttribute::SHOW 
                                                             | awt::VclWindowPeerAttribute::CLIPCHILDREN );

                    uno::Reference< awt::XWindowPeer > xNewWinPeer( 
                        xToolkit->createWindow( aOwnWinDescriptor ));
                    uno::Reference< awt::XWindow > xOwnWindow( xNewWinPeer, 
                                                               uno::UNO_QUERY_THROW );


                    // create a frame, and load the applet into it
                    // ===========================================

                    mxFrame.set(
                        xFactory->createInstanceWithContext( 
                            ::rtl::OUString::createFromAscii( "com.sun.star.frame.Frame" ),
                            mxComponentContext ),
                        uno::UNO_QUERY_THROW );

                    mxFrame->initialize( xOwnWindow );

                    uno::Reference < frame::XSynchronousFrameLoader > xLoader( mxViewer, 
                                                                               uno::UNO_QUERY_THROW );
                    xLoader->load( uno::Sequence < beans::PropertyValue >(), 
                                   mxFrame );


                    // resize surrounding window and applet to current shape size
                    // ==========================================================

                    ::basegfx::B2DRange aTmpRange;
                    ::canvas::tools::calcTransformedRectBounds( aTmpRange, 
                                                                rBounds, 
                                                                mpViewLayer->getTransformation() );
                    const ::basegfx::B2IRange& rPixelBounds(
                        ::basegfx::unotools::b2ISurroundingRangeFromB2DRange( aTmpRange ));

                    uno::Reference< awt::XWindow > xSurroundingWindow( mxFrame->getContainerWindow() );
                    if( xSurroundingWindow.is() )
                        xSurroundingWindow->setPosSize( static_cast<sal_Int32>(rPixelBounds.getMinX()), 
                                                        static_cast<sal_Int32>(rPixelBounds.getMinY()),
                                                        static_cast<sal_Int32>(rPixelBounds.getWidth()), 
                                                        static_cast<sal_Int32>(rPixelBounds.getHeight()),
                                                        awt::PosSize::POSSIZE );

                    uno::Reference< awt::XWindow > xAppletWindow( mxFrame->getComponentWindow() );
                    if( xAppletWindow.is() )
                        xAppletWindow->setPosSize( 0, 0, 
                                                   static_cast<sal_Int32>(rPixelBounds.getWidth()), 
                                                   static_cast<sal_Int32>(rPixelBounds.getHeight()),
                                                   awt::PosSize::POSSIZE );
                }
            }
            catch (uno::Exception &) 
            {
                return false;
            }

            return true;
        }

		// ---------------------------------------------------------------------
		
        void ViewAppletShape::endApplet()
        {
            uno::Reference<util::XCloseable> xCloseable(
                mxFrame,
                uno::UNO_QUERY );

            if( xCloseable.is() )
            {
                xCloseable->close( sal_True );
                mxFrame.clear();
            }
        }

		// ---------------------------------------------------------------------
		
        bool ViewAppletShape::render( const ::basegfx::B2DRectangle& rBounds ) const
        {
            ::cppcanvas::CanvasSharedPtr pCanvas = mpViewLayer->getCanvas();
            
            if( !pCanvas )
                return false;

            if( !mxFrame.is() )
            {
                // fill the shape background with black
                fillRect( pCanvas,
                          rBounds,
                          0xFFFFFFFFU );
            }

            return true;
        }

        bool ViewAppletShape::resize( const ::basegfx::B2DRectangle& rBounds ) const
        {
            if( !mxFrame.is() )
                return false;

            ::basegfx::B2DRange aTmpRange;
            ::canvas::tools::calcTransformedRectBounds( aTmpRange, 
                                                        rBounds, 
                                                        mpViewLayer->getTransformation() );
            const ::basegfx::B2IRange& rPixelBounds(
                ::basegfx::unotools::b2ISurroundingRangeFromB2DRange( aTmpRange ));
				
            uno::Reference< awt::XWindow > xFrameWindow( mxFrame->getContainerWindow() );
            if( xFrameWindow.is() )
                xFrameWindow->setPosSize( static_cast<sal_Int32>(rPixelBounds.getMinX()), 
                                          static_cast<sal_Int32>(rPixelBounds.getMinY()), 
                                          static_cast<sal_Int32>(rPixelBounds.getWidth()), 
                                          static_cast<sal_Int32>(rPixelBounds.getHeight()),
                                          awt::PosSize::POSSIZE );

            uno::Reference< awt::XWindow > xAppletWindow( mxFrame->getComponentWindow() );
            if( xAppletWindow.is() )
                xAppletWindow->setPosSize( 0, 0, 
                                           static_cast<sal_Int32>(rPixelBounds.getWidth()), 
                                           static_cast<sal_Int32>(rPixelBounds.getHeight()),
                                           awt::PosSize::POSSIZE );

            return true;
        }
	}
}