emailuis/uicomponents/inc/fstreeplainonelineitemvisualizer.h
changeset 0 8466d47a6819
child 29 6b8f3b30d0ec
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/uicomponents/inc/fstreeplainonelineitemvisualizer.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,189 @@
+/*
+* Copyright (c) 2007 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:  A visualizer for data items with plain text.
+*
+*/
+
+
+#ifndef C_FSTREEPLAINONELINEITEMVISUALIZER_H
+#define C_FSTREEPLAINONELINEITEMVISUALIZER_H
+
+#include <e32base.h>
+//<cmail> removed __FS_ALFRED_SUPPORT flag
+//#include <fsconfig.h>
+//</cmail> removed __FS_ALFRED_SUPPORT flag
+// <cmail> SF
+#include <alf/alfeventhandler.h>
+// </cmail>
+#include "fstreeitemvisualizerbase.h"
+
+class CAlfViewportLayout;
+class CAlfTextVisual;
+class CAlfImageVisual;
+
+class CFsTreePlainOneLineItemData;
+class TFsMarqueeClet;
+
+/**
+ * CFsTreePlainItemVisualizer is a visualizer for data items with plain text.
+ *
+ * Thic class is a concrete implementation for the MFsTreeItemVisualizer 
+ * interface. It provides visualization for data items with plain text.
+ * 
+ * @code
+ *
+ * @endcode
+ *
+ * @lib 
+ */
+NONSHARABLE_CLASS( CFsTreePlainOneLineItemVisualizer ): 
+                                  public CFsTreeItemVisualizerBase
+    {
+public:
+
+    /**
+     * Two-phased constructor
+     * 
+     * @param aOwnerControl Owner control.
+     */
+    IMPORT_C static CFsTreePlainOneLineItemVisualizer* NewL( 
+                                                 CAlfControl& aOwnerControl );
+                                              
+    /** 
+    * C++ destructor
+    */
+    virtual ~CFsTreePlainOneLineItemVisualizer();    
+    
+public: 
+    
+// from base class MFsTreeItemVisualizer
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * Returns the type of the item's visualizer.
+     */
+    virtual TFsTreeItemVisualizerType Type() const;
+
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * A call to this function means that the item is requested to draw itself
+     * within specified parent layout. Data to be visualized is passed as an
+     * argument. 
+     * 
+     * Parameter descriptions will be added when the final function prototype
+     * is ready.
+     */
+    virtual void ShowL( CAlfLayout& aParentLayout,
+                        const TUint aTimeout = 0 );
+
+    /**
+    * A call to this function means that the item is requested to update its
+    * visual content.
+    */
+    virtual void UpdateL( const MFsTreeItemData& aData,
+                          TBool aFocused,
+                          const TUint aLevel,
+                          CAlfTexture*& aMarkIcon,
+                          CAlfTexture*& aMenuIcon,
+                          const TUint aTimeout = 0,
+                          TBool aUpdateData = ETrue);
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * A call to this function means that the item goes out of the visible 
+     * items scope. The visualizer should destroy all its visuals to save 
+     * memory.
+     */
+    virtual void Hide( const TInt aTimeout = 0 );
+    
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * This method marquees the text in tree item if it is too long.
+     * 
+     * @param aMarqueeType Type of marquee.
+     * @param aMarqueeSpeed Speed of marquee in pixels per second.
+     * @param aMarqueeStartDelay Marquee's start delay in miliseconds.
+     * @param aMarqueeCycleStartDelay Marquee cycle's start delay.
+     * @param aMarqueeRepetitions Number of marquee's cycles.
+     */
+    virtual void MarqueeL(const TFsTextMarqueeType aMarqueeType,
+                          const TUint aMarqueeSpeed,
+                          const TInt aMarqueeStartDelay,
+                          const TInt aMarqueeCycleStartDelay,
+                          const TInt aMarqueeRepetitions);
+    
+    /**
+     * 
+     */
+    virtual TBool OfferEventL(const TAlfEvent& aEvent);
+
+protected:
+
+    /**
+     * C++ constructor
+     * 
+     * @param aOwnerControl Owner control.
+     */
+    CFsTreePlainOneLineItemVisualizer( CAlfControl& aOwnerControl );
+    
+    /**
+     * Second phase constructor
+     *
+     */
+    void ConstructL( );
+    
+private:
+
+    void UpdateLayout(const CFsTreePlainOneLineItemData* aData, 
+            const TInt aIndentation );
+    
+protected:
+
+    /**
+     * Viewport layouut containing text visual. Used for text marquee.
+     * Own.
+     */
+    CAlfViewportLayout* iViewportLayout;
+    
+    /**
+     * Text visual.
+     * Own.
+     */
+    CAlfTextVisual* iTextVisual;
+    
+    /**
+     * Visual for an icon.
+     */
+    CAlfImageVisual* iIconVisual;
+    
+    /**
+     * Visual for a mark icon.
+     */
+    CAlfImageVisual* iIconMarked;
+    
+    /**
+     * Visual for a menu icon.
+     */
+    CAlfImageVisual* iIconMenu;
+    
+    /**
+     * Clet for text marquee.
+     */
+    TFsMarqueeClet* iTextMarquee;
+
+    };
+    
+#endif  // C_FSTREEPLAINONELINEITEMVISUALIZER_H