--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/engine/inc/shwconstants.h Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) 2007-2008 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: The effect interface
+ *
+*/
+
+
+
+
+#ifndef __SHWCONSTANTS_H__
+#define __SHWCONSTANTS_H__
+
+// INCLUDES
+#include <e32std.h>
+
+// FORWARD DECLARATIONS
+
+// CLASS DECLARATION
+/**
+ * Namespace for slideshow constants.
+ */
+namespace NShwSlideshow
+ {
+ enum TPlayDirection
+ {
+ EPlayForwards = 1, // default
+ EPlayBackwards,
+ EPlayRandom
+ };
+
+ // Named constants for navigation directions
+ // to avoid "magic number" warnings
+ const TInt KNavigateForwards = 1;
+ const TInt KNavigateBackwards = -1;
+
+ // Engine DLL's uid
+ const TUid KEngineDllUid = {0x200071D3};
+
+ // First visual fade-in time, also applies when user navigates
+ const TInt KFirstEffectFadeInDuration = 0;
+ // default transition duration, milliseconds
+ const TInt KDefaultTransitionDuration = 2000;
+
+ // @todo get correct UID for effect types
+ /**
+ The effect Id is a combination of the ecom plugin UID and an array index
+ within the plugin.
+ */
+ const TUid KDefaultEffectPluginUid = { 0x200071D6 };
+
+ // Crossfade effects name - used if no localised strings are available
+ _LIT( KEffectNameCrossFade, "Cross Fade" );
+
+ // maximum opacity for TShwCrossFadeLayout
+ const TReal32 KMaxOpacity = 1.0;
+ // minimum opacity for TShwCrossFadeLayout
+ const TReal32 KMinOpacity = 0.0;
+
+ // effect Index - the index within the ecom plugin
+ const TInt KEffectUidXFadeNormal = 1;
+ const TInt KEffectUidZoomAndPan = 0;
+
+ // Zoom and Pan effect's name - used if no localised strings are available
+ _LIT( KEffectNameZoomAndPan, "Zoom and Pan" );
+ // maximum zoom ever is 200%, note that this should
+ // not be larger than MaxThumbnailSize
+ const TReal32 KMaxZoomAndPanFactor = 2.0;
+ // optimal zoom is 100%
+ const TReal32 KOptimalZoomAndPanFactor = 1.0;
+ // this defines the minimum zoom factor,
+ // 1.2 means we zoom images that are originally larger than 120% of the screen
+ const TReal32 KMinZoomAndPanFactor = 1.2;
+ // this constant specifies the length of the curve for panning
+ const TInt KZoomAndPanCurveLength = 100;
+
+ // set the maximum loaded thumbnail size to be 2 times the screen
+ // note that this should not be smaller than KMaxZoomAndPanFactor
+ // otherwise we zoom beyond 1:1 pixelsize in big pictures
+ const TInt KMaxThumbnailSize = 2;
+
+ // maximum effect name length
+ const TUint KMaxEffectNameLen = 64;
+
+ /// Thumbnail loading
+ // priority 2 is the highest we use, we need size
+ // attribute to be loaded first
+ const TInt KSizeContextPriority = 2;
+ // load image sizes 4 items in front and back
+ const TInt KSizeContextOffset = 4;
+
+ // lowest priority for the high quality context
+ // because we have time to wait as we have
+ // default icon to show
+ const TInt KHighQualityContextPriority = 0;
+ }
+
+#endif // __SHWCONSTANTS_H__