camerauis/cameraapp/generic/inc/camtextitem.h
branchRCL_3
changeset 54 bac7acad7cb3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/camtextitem.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,103 @@
+/*
+* 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:  Class for rendering text based indicators on top of viewfinder
+*
+*/
+
+
+#ifndef CAMTEXTITEM_H
+#define CAMTEXTITEM_H
+
+#include <e32std.h>
+#include <e32base.h>
+#include <AknUtils.h>
+
+class CFbsBitmap;
+class TAknTextComponentLayout;
+class CBitmapContext;
+
+/**
+ *  Class for rendering text based indicators on top of viewfinder.
+ *
+ *  CCamTextItem can be used to render text on the screen in a way
+ *  that is compatible with S60 Posting based overlays. The text mask
+ *  is also written in the alpha channel of the screen buffer to allow
+ *  it to be overlaid on top of the viewfinder.
+ *
+ *  @since S60 v5.0
+ */
+class CCamTextItem : public CBase
+    {
+public:
+    /**
+     * Two-phased constructor.
+     */
+    static CCamTextItem* NewL();
+
+    /**
+    * Destructor.
+    */
+    virtual ~CCamTextItem();
+
+public:
+    /**
+     * Set the layout for the text item.
+     * 
+     * @since S60 v5.0
+     * @param aParentRect Rectangle for the parent layout item
+     * @param aLayout     A TAknTextComponentLayout containing the layout
+     *                    details for this item. Usually this can be retrieved
+     *                    using the AknLayout2 API.
+     */
+    void SetLayoutL( const TRect& aParentRect, const TAknTextComponentLayout& aLayout );
+
+    /**
+     * Set the text content for the text item.
+     *
+     * @since S60 v5.0
+     * @param aText New text for this item. There are no size limitations. A
+     *              local copy if the text is created
+     */
+    void SetTextL( const TDesC& aText );
+
+    /**
+     * Render this text in a bitmap based graphics context.
+     *
+     * @since S60 v5.0
+     * @param aBitmapContext Graphics context to draw into.
+     */
+    void Draw( CBitmapContext& aBitmapContext ) const;
+    
+    /**
+     * Return the rect of the textitem
+     *
+     */
+    TRect Rect();
+
+private:
+    
+    CCamTextItem();
+
+    void ConstructL();
+
+private: // data
+
+    TAknLayoutText iLayout;
+
+    // own
+    HBufC* iText;
+
+    };
+
+#endif // CAMTEXTITEM_H