--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdkcreationmw/sdkexamples/cppexamples/S60Ex/helperfunctions/bitmapmethods.cpp	Mon Mar 08 12:09:11 2010 +0530
@@ -0,0 +1,202 @@
+/*
+* Copyright (c) 2004, 2006 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: 
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "bitmapmethods.h"
+
+#include <eikenv.h>
+#include <fbs.h>
+
+// ============================ MEMBER FUNCTIONS ==============================
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateGraphicsContextLC()
+// Create a graphics context and leave it on the cleanup stack.
+// ----------------------------------------------------------------------------
+//
+CFbsBitGc* NBitmapMethods
+::CreateGraphicsContextLC( CFbsBitmapDevice& aBitmapDevice )
+    {
+    CFbsBitGc* graphicsContext = NULL;
+    User::LeaveIfError( aBitmapDevice.CreateContext( graphicsContext ) );
+    CleanupStack::PushL( graphicsContext );
+    return graphicsContext;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateGraphicsContextL()
+// Create a graphics context.
+// ----------------------------------------------------------------------------
+//
+CFbsBitGc* NBitmapMethods
+::CreateGraphicsContextL( CFbsBitmapDevice& aBitmapDevice )
+    {
+    CFbsBitGc* gc = CreateGraphicsContextLC( aBitmapDevice );
+    CleanupStack::Pop( gc );
+    return gc;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapDeviceLC()
+// Create a bitmap device and leave it on the cleanup stack.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmapDevice* NBitmapMethods::CreateBitmapDeviceLC( CFbsBitmap& aBitmap )
+    {
+    CFbsBitmapDevice* bitmapDevice = CFbsBitmapDevice::NewL( &aBitmap );
+    CleanupStack::PushL( bitmapDevice );
+    return bitmapDevice;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapDeviceL()
+// Create a bitmap device.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmapDevice* NBitmapMethods::CreateBitmapDeviceL( CFbsBitmap& aBitmap )
+    {
+    CFbsBitmapDevice* device = CreateBitmapDeviceLC( aBitmap );
+    CleanupStack::Pop( device );
+    return device;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapLC()
+// Create a bitmap and leave it on the cleanup stack.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmap* NBitmapMethods
+::CreateBitmapLC( TSize aSizeInPixels, TDisplayMode aDispMode )
+    {
+    CFbsBitmap* bitmap = new ( ELeave ) CFbsBitmap();
+    CleanupStack::PushL( bitmap );
+    User::LeaveIfError( bitmap->Create( aSizeInPixels,aDispMode ) );
+    ASSERT( ( bitmap->DisplayMode() == KColourDepth )
+                                    || ( bitmap->DisplayMode()  == EGray2 ) );
+    return bitmap;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapL()
+// Create a bitmap.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmap* NBitmapMethods
+::CreateBitmapL( TSize aSizeInPixels, TDisplayMode aDispMode )
+    {
+    CFbsBitmap* bitmap = CreateBitmapLC( aSizeInPixels, aDispMode );
+    CleanupStack::Pop( bitmap );
+    return bitmap;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapLC()
+// Create a bitmap and leave it on the cleanup stack.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmap* NBitmapMethods::CreateBitmapLC( const TDesC& aFileName, TInt aId )
+    {
+    CFbsBitmap* bitmap = new ( ELeave ) CFbsBitmap();
+
+    CleanupStack::PushL( bitmap );
+    TInt loadException = bitmap->Load( aFileName, aId );
+    User::LeaveIfError( loadException );
+
+    if ( ( bitmap->DisplayMode() == KColourDepth )
+                                 || ( bitmap->DisplayMode()  == EGray2 ) )
+        {
+        return bitmap;
+        }
+    else
+        {
+        CFbsBitmap* newBitmap = CreateBitmapLC(    bitmap->SizeInPixels(),
+                                                KColourDepth );
+
+        CFbsBitmapDevice* bitmapDevice = CreateBitmapDeviceLC( *newBitmap );
+        CFbsBitGc* bitmapGc = CreateGraphicsContextLC( *bitmapDevice );
+        bitmapGc->BitBlt( TPoint( 0,0 ),
+                          bitmap, TRect( bitmap->SizeInPixels() ) );
+        CleanupStack::PopAndDestroy( 2 ); // gc and device
+        // The next three lines are here to get rid
+        // of the old bitmap but keep the new one
+        CleanupStack::Pop( newBitmap );
+        CleanupStack::PopAndDestroy( bitmap );
+        CleanupStack::PushL( newBitmap );
+
+        return newBitmap;
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::CreateBitmapL()
+// Create a bitmap.
+// ----------------------------------------------------------------------------
+//
+CFbsBitmap* NBitmapMethods::CreateBitmapL( const TDesC& aFileName, TInt aId )
+    {
+    CFbsBitmap* bitmap = CreateBitmapLC( aFileName, aId );
+    CleanupStack::Pop( bitmap );
+    return bitmap;
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::BitBltMaskedEntireBitmap()
+// Blit the entire of a bitmap with a mask onto a gc.
+// ----------------------------------------------------------------------------
+//
+void NBitmapMethods::BitBltMaskedEntireBitmap( CFbsBitGc& aTargetGc,
+                                               TPoint aTopLeft,
+                                               const CFbsBitmap& aBitmap,
+                                               const CFbsBitmap& aBitMask )
+    {
+    PartialReset( aTargetGc );
+    aTargetGc.BitBltMasked( aTopLeft,
+                            &aBitmap,
+                            aBitmap.SizeInPixels(),
+                            &aBitMask,
+                            ETrue );
+    PartialReset( aTargetGc );
+    }
+
+// ----------------------------------------------------------------------------
+// NBitmapMethods::PartialReset()
+// Reset a gc.
+// ----------------------------------------------------------------------------
+//
+void NBitmapMethods::PartialReset( CFbsBitGc& aGc )
+    {
+    aGc.SetPenSize( TSize( 1,1 ) );
+    aGc.SetPenColor( KRgbBlack );
+    aGc.SetPenStyle( CFbsBitGc::ESolidPen );
+    aGc.SetDrawMode( CFbsBitGc::EDrawModePEN );
+    aGc.DiscardFont();
+    aGc.DiscardBrushPattern();
+    aGc.SetBrushColor( KRgbWhite );
+    aGc.SetBrushStyle( CFbsBitGc::ENullBrush );
+    aGc.SetCharJustification( 0,0 );
+    aGc.SetWordJustification( 0,0 );
+    aGc.SetDitherOrigin( TPoint( 0,0 ) );
+    aGc.SetPenStyle( CFbsBitGc::ENullPen );
+    aGc.SetShadowMode( EFalse );
+    aGc.SetStrikethroughStyle( EStrikethroughOff );
+    aGc.SetUnderlineStyle( EUnderlineOff );
+    aGc.SetUserDisplayMode( ENone );
+    }
+
+// End of File