--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/services/terminalmodeservice/src/upnpsvgimageconverter.cpp Tue Aug 31 16:06:48 2010 +0300
@@ -0,0 +1,363 @@
+/**
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: CUpnpSvgImageConverter class implementation.
+*
+*/
+
+#include "upnpsvgimageconverter.h"
+#include "upnptmserverimpl.h"
+#include <f32file.h>
+#include "upnpiconconversionactive.h"
+#include "OstTraceDefinitions.h"
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "upnpsvgimageconverterTraces.h"
+#endif
+
+// Literals
+_LIT(KLatin, "LatinPlain12");
+_LIT(KConvertedIconPath, "public\\TmServerDevice1\\");
+_LIT(KCross, "x");
+_LIT(KDotBmp, ".bmp");
+_LIT(KThreadName, "ImageConverterThread");
+_LIT(KSemaphoreName, "ImageConverterSemaphore");
+
+// Constant
+const TUint KDot = '.';
+
+// ============================ MEMBER FUNCTIONS ===================================
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::NewL
+// Two-phased constructor.
+// @param aIconWidth Desired width of the serving icon.
+// @param aIconHeight Desired height of the serving icon.
+// ---------------------------------------------------------------------------------
+//
+CUpnpSvgImageConverter* CUpnpSvgImageConverter::NewL( TInt aIconWidth, TInt aIconHeight )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_NEWL_ENTRY );
+ OstTraceExt2( TRACE_NORMAL, CUPNPSVGIMAGECONVERTER_NEWL, "CUpnpSvgImageConverter::NewL;aIconWidth=%d;aIconHeight=%d", aIconWidth, aIconHeight );
+ CUpnpSvgImageConverter* self = new (ELeave) CUpnpSvgImageConverter( );
+ CleanupStack::PushL(self);
+ self->ConstructL( aIconWidth,aIconHeight );
+ CleanupStack::Pop(self);
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_NEWL_EXIT );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::CUpnpSvgImageConverter
+// C++ default constructor can NOT contain any code, that might leave.
+// ---------------------------------------------------------------------------------
+//
+CUpnpSvgImageConverter::CUpnpSvgImageConverter( )
+ {
+
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------------
+//
+void CUpnpSvgImageConverter::ConstructL( TInt aIconWidth, TInt aIconHeight )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_CONSTRUCTL_ENTRY );
+ //Geometric rectangle.
+ TRect lMainRect( 0,0,aIconWidth,aIconHeight );
+ /**
+ * Specifies the font specification to use for text drawing.
+ * Here "LatinPlain12" of height "10" is used.
+ */
+ TFontSpec lFontSpec( KLatin,UpnpString::KMaxTUintLength );
+ // A bitmap managed by the font and bitmap server.
+ User::LeaveIfError(iFbsSession.Connect());
+ iBitmap = new ( ELeave ) CFbsBitmap();
+ iMask = new ( ELeave ) CFbsBitmap();
+ //Creates bitmap file of the desired dimensions with desired display mode(64,000 colour)
+ User::LeaveIfError( iBitmap->Create( TSize( lMainRect.Width(),
+ lMainRect.Height() ),EColor64K ) );
+ User::LeaveIfError( iMask->Create( TSize( lMainRect.Width(),
+ lMainRect.Height() ),EGray256 ) ); // 256 grayscales display mode as alpha values
+ /**
+ * Create a new Svg Engine interface.
+ * @param iBitmap bitmap to draw resulting svg image.
+ * @param aReqObserver(NULL) interface for callbacks to retrieve info
+ * only client can provide, such as opening files.
+ * @param lFontSpecFont spec to use for text drawing.
+ */
+ iSvgModule = CSvgEngineInterfaceImpl::NewL( iBitmap,NULL,lFontSpec );
+ User::LeaveIfError( iFileSession.Connect() );
+ TBuf<UpnpString::KMaxFilenameLength> privatePath;
+ User::LeaveIfError( iFileSession.PrivatePath(privatePath) );
+
+ privatePath.Append(KConvertedIconPath());
+ privatePath.AppendNum( aIconWidth );
+ privatePath.Append( KCross);
+ privatePath.AppendNum( aIconHeight );
+ privatePath.Append( UpnpString::KDoubleBackSlash16() );
+ TInt err = iFileSession.MkDir(privatePath);
+ if( ( err != KErrNone ) && ( err != KErrAlreadyExists ) )
+ {
+ // Leaves if fails to create a directory
+ User::Leave(err);
+ }
+ iBitMapFilePath.CreateL( UpnpString::KMaxFilenameLength );
+ iBitMapFilePath.Append( privatePath );
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_CONSTRUCTL_EXIT );
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::~CUpnpSvgImageConverter
+// Destructor
+// ---------------------------------------------------------------------------------
+//
+CUpnpSvgImageConverter::~CUpnpSvgImageConverter()
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_CUPNPSVGIMAGECONVERTER_ENTRY );
+ iBitMapFilePath.Close();
+ delete iMask;
+ delete iBitmap;
+ delete iSvgModule;
+ iFbsSession.Disconnect();
+ iFileSession.Close();
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_CUPNPSVGIMAGECONVERTER_EXIT );
+ }
+
+// -----------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::ConvertToBitmapL
+// Method invokes svg to bitmap conversion.
+// It takes svg file as an input and returns converted icon file( bmp ).
+// Also prepares DOM for given SVG file.
+// @param aSvgFile Input svg filepath
+// @param aBitmapFile[out] Bitmap filepath ( converted file ).
+// -----------------------------------------------------------------------------------
+void CUpnpSvgImageConverter::ConvertToBitmapL( const TDesC& aSvgFile, RBuf& aBitmapFile )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_CONVERTTOBITMAPL_ENTRY );
+ /**
+ * Extracts the filename( without filename extension ) from the input svg filepath and
+ * uses the same filename to create bitmap file ( eg: abc.bmp )
+ */
+ TPtrC iconFileNameWithExtension = aSvgFile.Mid((aSvgFile.LocateReverse(KDirectorySeparator))+1);
+ iBitMapFilePath.Append( iconFileNameWithExtension.Left(iconFileNameWithExtension.LocateReverse(KDot)) );
+ iBitMapFilePath.Append( KDotBmp );
+ RFile iconFile;
+ TInt err = iconFile.Create(iFileSession,iBitMapFilePath,EFileRead|EFileWrite|EFileShareAny);
+ OstTrace1( TRACE_NORMAL, CUPNPSVGIMAGECONVERTER_CONVERTTOBITMAPL, "CUpnpSvgImageConverter::ConvertToBitmapL;err=%d", err );
+ iconFile.Close();
+ aBitmapFile.Close();
+ if ( err == KErrAlreadyExists )
+ {
+ //If the converted file pre-exists, just return the existing filepath.
+ aBitmapFile.CreateL(iBitMapFilePath);
+ }
+ else if ( err == KErrNone )
+ {
+ TInt domHandle;
+ /**
+ * Parses and Prepares DOM for given SVG file.
+ * @param aSvgFile the name of the file to be parsed
+ * @param domHandle Handle to the created DOM.
+ * @return lsvgerr Error object specifying the error occured during operation
+ */
+ MSvgError* lsvgerr = iSvgModule->PrepareDom( aSvgFile,domHandle ,NULL );
+ if ( (! lsvgerr ) || ( lsvgerr && lsvgerr->HasError() &&!lsvgerr->IsWarning() ) )
+ {
+ User::Leave( KErrCancel );
+ }
+ /**
+ *Initialization of the engine
+ *@param domHandle Handle to DOM Tree.
+ *@param iBitmap Buffer for drawing the DOM Tree.
+ *@param iMask Buffer for mask (alpha values) of framebuffer result
+ *@return lsvgerr Error object specifying the error occured.
+ */
+ lsvgerr = iSvgModule->UseDom( domHandle ,iBitmap,iMask );
+ if ( (! lsvgerr ) || ( lsvgerr && lsvgerr->HasError() &&!lsvgerr->IsWarning() ) )
+ {
+ User::Leave( KErrCancel );
+ }
+ /**
+ * Request the SVG Engine to begin an animation.
+ */
+ iSvgModule->Start( lsvgerr );
+ if ( (! lsvgerr ) || ( lsvgerr && lsvgerr->HasError() &&!lsvgerr->IsWarning() ) )
+ {
+ User::Leave( KErrCancel );
+ }
+ /**
+ * Deletes the DOM tree associated with the Handle.
+ */
+ lsvgerr = iSvgModule->DeleteDom( domHandle ) ;
+ if ( (! lsvgerr ) || ( lsvgerr && lsvgerr->HasError() &&!lsvgerr->IsWarning() ) )
+ {
+ User::Leave( KErrCancel );
+ }
+ /**
+ * Creates and starts a new thread to handle asynchronous icon conversion.
+ * A new or separate thread is needed for this purpose since the conversion happens
+ * in the same thread as of that of the one who invokes.
+ */
+ StartThreadL();
+ // Sets the converted filepath
+ aBitmapFile.CreateL(iBitMapFilePath);
+ }
+ else
+ {
+ User::Leave(err);
+ }
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_CONVERTTOBITMAPL_EXIT );
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::StartThreadL
+// Creates a new thread where actual conversion occurs.
+// Also creates a sempahore and waits on it.
+// ---------------------------------------------------------------------------------
+//
+void CUpnpSvgImageConverter::StartThreadL( )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_STARTTHREADL_ENTRY );
+ // Creates and opens a semaphore
+ RSemaphore semaphore;
+ CleanupClosePushL(semaphore);
+ TInt error = semaphore.CreateGlobal( KSemaphoreName, KErrNone );
+ if ( error == KErrAlreadyExists )
+ {
+ User::LeaveIfError(semaphore.OpenGlobal( KSemaphoreName ));
+ }
+ else
+ {
+ User::LeaveIfError(error);
+ }
+ // Creates a new thread which will be in suspended state after creation
+ RThread thread;
+ CleanupClosePushL(thread);
+ User::LeaveIfError( thread.Create( KThreadName,
+ ImageConverter,
+ KDefaultStackSize,
+ NULL,
+ this,
+ EOwnerProcess));
+ thread.SetPriority(EPriorityRealTime);
+ //Resumes the newly created thread
+ thread.Resume();
+ semaphore.Wait();
+ CleanupStack::PopAndDestroy(2,&semaphore);
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_STARTTHREADL_EXIT );
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::Filepath
+// Method to return the path of the icon file which needs to be converted.
+// @return Returns reference to Bitmap file path.
+// ---------------------------------------------------------------------------------
+//
+const TDesC& CUpnpSvgImageConverter::Filepath( )const
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_FILEPATH_ENTRY );
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_FILEPATH_EXIT );
+ return iBitMapFilePath;
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::BitmapObject
+// Method to return the bitmap object.
+// @return Returns reference to Bitmap object.
+// ---------------------------------------------------------------------------------
+//
+CFbsBitmap& CUpnpSvgImageConverter::BitmapObject()const
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_BITMAPOBJECT_ENTRY );
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_BITMAPOBJECT_EXIT );
+ return *iBitmap;
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::ImageConverter
+// Static method serving as thread's main function
+// @param aParam Pointer to any type object.
+// @return Returns error code
+// ---------------------------------------------------------------------------------
+//
+TInt CUpnpSvgImageConverter::ImageConverter( TAny* aParam )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_IMAGECONVERTER_ENTRY );
+ TInt err( KErrNone );
+ CUpnpSvgImageConverter* svgConverter = static_cast <CUpnpSvgImageConverter*>( aParam );
+ // Create cleanupstack
+ CTrapCleanup* cleanupStack = CTrapCleanup::New();
+ if ( !cleanupStack )
+ {
+ err = KErrNoMemory;
+ }
+ else
+ {
+ TRAP( err, ImageConverterL(*svgConverter) );
+ }
+ // Create a matching semaphore for signalling the waiting semaphore
+ RSemaphore semaphoreStop;
+ semaphoreStop.OpenGlobal(KSemaphoreName);
+ semaphoreStop.Signal();
+ semaphoreStop.Close();
+
+ delete cleanupStack;
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_IMAGECONVERTER_EXIT );
+ return err;
+ }
+
+// ---------------------------------------------------------------------------------
+// CUpnpSvgImageConverter::ImageConverterL
+// Called from thread's main function.
+// Contains the code which can leave.
+// @param aSvgConverter Reference to class object.
+// ---------------------------------------------------------------------------------
+//
+void CUpnpSvgImageConverter::ImageConverterL( CUpnpSvgImageConverter& aSvgConverter )
+ {
+ OstTraceFunctionEntry0( CUPNPSVGIMAGECONVERTER_IMAGECONVERTERL_ENTRY );
+ /**
+ * Add support for active objects
+ * Create and install active scheduler
+ */
+ CActiveScheduler* scheduler = new (ELeave) CActiveScheduler;
+ CleanupStack::PushL(scheduler);
+ CActiveScheduler::Install( scheduler );
+ // Opens the bitmap file and supplies it to the active object
+ RFs fs;
+ CleanupClosePushL( fs );
+ User::LeaveIfError(fs.Connect());
+ RFile bitmapFile;
+ CleanupClosePushL( bitmapFile );
+ User::LeaveIfError( bitmapFile.Open( fs, aSvgConverter.Filepath(), EFileRead|EFileWrite|EFileShareAny ));
+
+ // Create an active object that is executed in this thread
+ CUpnpIconConversionActive* active = CUpnpIconConversionActive::NewL( bitmapFile );
+ CleanupStack::PushL(active);
+ // Invoke the request to the active object
+ active->Convert( aSvgConverter.BitmapObject() );
+ // Thread execution starts
+ CActiveScheduler::Start();
+ User::LeaveIfError( active->FetchError() ); // Leaves if the status returned is not KErrNone
+
+ /**
+ * Thread execution ends (waiting for CActiveScheduler::Stop())
+ * Cleanup the active object and scheduler
+ */
+ CleanupStack::PopAndDestroy(UpnpString::KDoubleLineFeedLength,scheduler);
+ OstTraceFunctionExit0( CUPNPSVGIMAGECONVERTER_IMAGECONVERTERL_EXIT );
+ }
+
+// End of File