emailuis/uicomponents/inc/fstreeplaintwolineitemvisualizer.h
changeset 0 8466d47a6819
child 73 c8382f7b54ef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/uicomponents/inc/fstreeplaintwolineitemvisualizer.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,305 @@
+/*
+* 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_FSTREEPLAINTWOLINEITEMVISUALIZER_H
+#define C_FSTREEPLAINTWOLINEITEMVISUALIZER_H
+
+#include <e32base.h>
+//<cmail> removed __FS_ALFRED_SUPPORT flag
+//#include <fsconfig.h>
+//</cmail> removed __FS_ALFRED_SUPPORT flag
+
+#include "fstreeplainonelineitemvisualizer.h"
+
+class CFsTreePlainTwoLineItemData;
+class TFsMarqueeClet;
+
+
+/**
+ * CFsTreePlainTwoLineItemVisualizer 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( CFsTreePlainTwoLineItemVisualizer ):
+    public CFsTreePlainOneLineItemVisualizer 
+    {
+public:
+
+    /**
+     * Two-phased constructor
+     * 
+     * @param aOwnerControl Owner control.
+     */
+    IMPORT_C static CFsTreePlainTwoLineItemVisualizer* NewL( 
+                                                 CAlfControl& aOwnerControl );
+    
+    /** 
+    * C++ destructor
+    */
+    virtual ~CFsTreePlainTwoLineItemVisualizer();    
+    
+public:
+
+    /**
+     * Returns the type of the item's visualizer.
+     */
+    virtual TFsTreeItemVisualizerType Type() const;
+
+    /**
+     * Sets horizontal alignment of the displayed plain text.
+     * 
+     * For AH layout EAlfAlignHLeft is internally converted to EAlfAlignHRight
+     * and EAlfAlignHRight is converted to EAlfAlignHLeft.
+     * 
+     * EAlfAlignHLocale (default setting) - alignment set according to text directionality
+     * 
+     * @param aAlign Horizontal text alignment type.
+     */
+    IMPORT_C virtual void SetSecondaryTextAlign( 
+            const TAlfAlignHorizontal aAlign );
+
+    /**
+     * Turn on/off displaying preview pane (3rd line).
+     * 
+     * @param aPreviewOn ETrue, preview pane is displayed. EFalse, preview 
+     *                   pane is hidden. 
+     */
+    virtual void SetPreviewPaneOn( TBool aPreviewOn );
+    
+    /**
+     * Retrurns infromation whether preview pane is turned on.
+     * 
+     * @return ETrue if preview pane (3rd line) is turned on.
+     */
+    virtual TBool IsPreviewPaneOn () const;
+    
+    /**
+     * Sets the size of the item visualization area when it has preview pane
+     * turned on.
+     * 
+     * @param aSize Size in pixels of the item when it has preview pane 
+     *              turned on.
+     */
+    virtual void SetPreviewPaneEnabledSize ( const TSize aSize );
+    
+    /**     
+     * Returns the size of an item when it has preview pane turned on.
+     * 
+     * @return Size in pixels of the item when has preview pane turned on.
+     */
+    virtual TSize PreviewPaneEnabledSize() const;
+
+    /**
+     * Function sets wether flag icon should be visible or hidden.
+     * By default the icon is shown (if it is set).
+     * 
+     * @param aFlagVisible ETrue if flag icon should be visible.
+     */
+    virtual void SetFlagIconVisible( TBool aFlagVisible );
+
+    /**
+     * Function returns information if flag icon is visible or hidden.
+     * 
+     * @return ETrue if flag icon is visible.
+     */
+    virtual TBool IsFlagIconVisible( ) const;
+
+    /**
+     * The function sets whether time visual should be visible when item is 
+     * not focused (in one line layout).
+     * 
+     * @param ETrue if time visual should be visible.
+     */
+    virtual void SetIsTimeVisibleInFirstLineWhenNotFocused( TBool aIsVisible );
+    
+    /**
+     * The function returns whether time visual is visible when item is not 
+     * focused (in one line layout).
+     * 
+     * @return ETrue if time visual is visible.
+     */
+    virtual TBool IsTimeVisibleInFirstLineWhenNotFocused( ) const;
+    
+    
+// from base class MFsTreeItemVisualizer
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * Returns the size of an item in a normal (not extended) state.
+     * 
+     * @return Size in pixels of an item when it is not extended.
+     */
+    virtual TSize Size() const;
+    
+    /**
+     * From MFsTreeItemVisualizer.
+     * Returns the size of an item in expanded state.
+     * 
+     * @return Size in pixels of the item when it is in expanded state.
+     */
+    virtual TSize ExtendedSize() 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);
+
+    
+    virtual void SetKeyWordsToHighlight(const RPointerArray<TDesC>& aKeyWords);
+protected:
+
+    /**
+     * C++ constructor
+     * 
+     * @param aOwnerControl Owner control.
+     */
+    CFsTreePlainTwoLineItemVisualizer( CAlfControl& aOwnerControl );
+    
+    /**
+     * Second phase constructor
+     *
+     */
+    void ConstructL( );
+    
+private:
+    void HighlightKeyWords(TDesC& aText);
+    void UpdateLayout(
+            const CFsTreePlainTwoLineItemData* aData, 
+            const TInt aIndentation );
+
+private: // member data
+    
+    /**
+     * Text visual.
+     * Own.
+     */
+    CAlfTextVisual* iSecondaryTextVisual;
+    
+    /**
+     * Secondary viewport layout. For text marquee.
+     * Own.
+     */
+    CAlfViewportLayout* iSecViewport;    
+    
+    /*
+     * Horizontal text alignment in visual.
+     */
+    TAlfAlignHorizontal iSecondaryTextAlign;
+    
+    /**
+     * Preview pane is on/off.
+     */
+    TBool iPreviewPaneOn;
+    
+    /**
+     * Flag icon shown/hidden.
+     */
+    TBool iShowFlagIcon;
+    
+    /**
+     * Size of item when preview pane is on.
+     */
+    TSize iPreviewPaneEnabledSize;
+    
+    /**
+     * Visual for a flag icon.
+     */
+    CAlfImageVisual* iIconFlagVisual;
+    
+    /**
+     * Date and time text visual.
+     * Own.
+     */
+    CAlfTextVisual* iDateTimeTextVisual;
+
+    /**
+     * Preview pane text visual.
+     * Own.
+     */
+    CAlfTextVisual* iPreviewPaneTextVisual;
+    
+    /**
+     * Clet for secondary text marquee.
+     */
+    TFsMarqueeClet* iSecondaryTextMarquee;
+    
+    /**
+     * Time visual shown/hidden in not focused one line layout.
+     */
+    TBool iIsTimeVisibleWhenNotFocused;
+    
+    RPointerArray<TDesC> iKeyWords;
+    };
+    
+#endif  // C_FSTREEPLAINTWOLINEITEMVISUALIZER_H