photosgallery/viewframework/views/listview/inc/glxlistviewimp.h
changeset 0 4e91876724a2
child 2 7d9067c6fcb1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/views/listview/inc/glxlistviewimp.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,222 @@
+/*
+* Copyright (c) 2008-2009 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:    List view implementation
+*
+*/
+
+
+
+
+
+#ifndef C_GLXLISTVIEWIMP_H
+#define C_GLXLISTVIEWIMP_H
+
+
+// INCLUDES
+#include "glxlistview.h"
+#include "glxpreviewthumbnailbinding.h"
+
+#include <glxthumbnailcontext.h>         // Fetch context to retrieve thumbnails
+#include <glxmedialistiterator.h>        // Interface for going through items in
+
+#include <ganes/HgScrollBufferObserverIface.h>
+#include <ganes/HgSelectionObserverIface.h>
+
+// FORWARD DECLARATIONS
+class MMPXCollectionUtility;
+class CGlxPreviewThumbnailBinding;
+
+class CHgList;
+class CAknsBasicBackgroundControlContext;
+
+// CLASS DECLARATION
+
+/**
+ * Implementation of preview list view.  The view shows a vertically scrolling
+ * listbox with a highlight on the selected item.  The selected item may also
+ * show additional information such as extra text and preview thumbnails.
+ *
+ * The view uses the mullistwidget 
+ *
+ * When the list is empty, a static text string is displayed in the centre of
+ * the view, and the middle softkey is disabled.
+ *
+ */
+
+NONSHARABLE_CLASS( CGlxListViewImp ) : public CGlxListView, 
+									   public MGlxMediaListObserver,
+								       public MHgScrollBufferObserver,
+									   public MHgSelectionObserver,
+									   public MPreviewTNObserver
+    {
+public:
+    /**
+     * Two-phased constructor.
+     *
+     * @param aMediaListFactory object providing a media list
+     * @param aViewUid ID of the view to create.
+     * @param aResourceIds containing view specific resource ids
+     * @param aTitle title of the view
+     *
+     * @return Pointer to newly created object.
+     */
+    static CGlxListViewImp* NewL(MGlxMediaListFactory* aMediaListFactory, 
+                                 TInt aViewUid, 
+                                 const TListViewResourceIds& aResourceIds, 
+                                 const TDesC& aTitle);                                 
+                                 
+
+    /**
+     * Two-phased constructor.
+     *
+     * @param aMediaListFactory object providing a media list
+     * @param aViewUid ID of the view to create.
+     * @param aResourceIds containing view specific resource ids
+     * @param aTitle title of the view
+     *
+     * @return Pointer to newly created object.
+     */
+    static CGlxListViewImp* NewLC(MGlxMediaListFactory* aMediaListFactory, 
+                                  TInt aViewUid, 
+                                  const TListViewResourceIds& aResourceIds, 
+                                  const TDesC& aTitle);
+
+    /**
+     * Destructor.
+     */
+    virtual ~CGlxListViewImp();
+
+    
+private:
+    /**
+     * C++ default constructor.
+     *
+     * @param aViewUid ID of the view to create.
+     * @param aResourceIds containing view specific resource ids
+     */
+    CGlxListViewImp(TInt aViewUid, const TListViewResourceIds& aResourceIds);
+
+    /**
+     * By default Symbian 2nd phase constructor is private.
+     *
+     * @param aMediaListFactory object providing a media list
+     * @param aTitle title of the view
+     */
+    void ConstructL(MGlxMediaListFactory* aMediaListFactory, const TDesC& aTitle);
+
+    /**
+     * @return ID for the control group containing the list control.
+     */
+    TInt ControlGroupId() const;
+
+    // from base class CAknView
+    TUid Id() const;    
+
+    void DoMLViewActivateL(const TVwsViewId& aPrevViewId, TUid aCustomMessageId,
+        const TDesC8& aCustomMessage);
+		
+    void DoMLViewDeactivate();    
+    
+    TBool HandleViewCommandL(TInt aCommand);
+
+	/**
+	 *  HandleStatusPaneSizeChange.
+	 *  Called by the framework when the application status pane
+	 *  size is changed.
+	 */
+	void HandleStatusPaneSizeChange ( );
+
+    TTypeUid::Ptr MopSupplyObject(TTypeUid aId);
+    
+	 /**
+	  * Destroys the View Widget and Model for List Widget
+	  */
+	 void DestroyListViewWidget();
+
+protected:
+    void PreviewTNReadyL(CFbsBitmap* aBitmap, CFbsBitmap* aMask, TInt aIndex);
+    	 
+protected:
+    void Request(TInt aRequestStart, TInt aRequestEnd, THgScrollDirection aDirection);
+    void Release(TInt aReleaseStart, TInt aReleaseEnd);
+
+protected:
+    void HandleSelectL( TInt aIndex );
+    void HandleOpenL( TInt aIndex );   
+    
+private:
+    void CreateListL();
+	 
+public: // from MGlxMediaListObserver
+    void HandleItemAddedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList );
+    void HandleItemRemovedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList );
+    void HandleAttributesAvailableL( TInt aItemIndex, 
+        const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList );    
+	void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, 
+    TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList );
+    void HandleItemSelectedL(TInt aIndex, TBool aSelected, MGlxMediaList* aList );
+    void HandleMessageL( const CMPXMessage& aMessage, MGlxMediaList* aList );
+    void HandleError( TInt aError );
+    void HandleCommandCompleteL( CMPXCommand* aCommandResult, TInt aError, 
+        MGlxMediaList* aList );
+    void HandleMediaL( TInt aListIndex, MGlxMediaList* aList );
+    void HandleItemModifiedL( const RArray<TInt>& aItemIndexes, MGlxMediaList* aList );
+    void HandlePopulatedL( MGlxMediaList* aList );
+	 
+private:    // Data
+
+    CAknsBasicBackgroundControlContext* iBgContext; //Own
+    
+    CHgList* iList; //Own
+    
+	MGlxMediaList* iFocusedChildList;
+	
+	CGlxPreviewThumbnailBinding* iPreviewTNBinding; //Own
+	
+	    // Fetch context for retrieving title attribute
+    CGlxDefaultAttributeContext* iTitleAttributeContext;
+
+    // Fetch context for retrieving subtitle
+    CGlxDefaultAttributeContext* iSubtitleAttributeContext;
+	
+	// Thumbnail context
+	CGlxThumbnailContext* iThumbnailContext; //Own
+
+	// for thumbnail context
+	TGlxSequentialIterator iThumbnailIterator;
+
+    /** Unique ID of this Avkon view */
+    TInt iViewUid;
+
+    /** View specific resource ids */
+    TListViewResourceIds iResourceIds;
+
+    /// The animation being applied to the view
+    MGlxAnimation* iViewAnimation;
+    
+    TBool iPopulateListTNs;
+	
+    TInt iStartIndex;
+
+    TInt iLastFocusedIndex;
+    
+    TBool iNextViewActivationEnabled;
+    // save title text 
+    HBufC* iTitletext;
+
+    };
+
+#endif  // C_GLXLISTVIEWIMP_H
+
+// End of File