--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiLineVisual.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,186 @@
+/*
+* Copyright (c) 2006-2007 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:   Defines CHuiLineVisual, Visual that is able to draw lines 
+*                onto a curve path. 
+*
+*/
+
+
+
+#ifndef __HUILINEVISUAL_H__
+#define __HUILINEVISUAL_H__
+
+
+#include <e32base.h>
+#include <uiacceltk/HuiVisual.h>
+#include <uiacceltk/HuiImage.h>
+#include <uiacceltk/HuiOwnedPointer.h>
+#include <uiacceltk/HuiCurvePath.h>
+#include <uiacceltk/HuiGc.h>
+#include <uiacceltk/HuiMappingFunctions.h>
+
+
+/* Forward declarations */
+class CHuiEnv;
+class CHuiControl;
+
+
+/**
+ * Line visual draws a line along a curve path.
+ *
+ * A line visual will draw a bendy line that follows a specified
+ * curve path. Width and alpha functions can be set to change the
+ * opacity and thickness of the line along its length.
+ *
+ * Note that the Bitgdi renderer contains only a minimal implementation
+ * of line drawing. There is no aliasing or shading on the line, and
+ * thickness and alpha functions have no effect. The entire thickness of a Bitgdi
+ * line is set by the initial thickness at point 0.
+ *
+ * @see CHuiCurvePath
+ */
+NONSHARABLE_CLASS(CHuiLineVisual) : public CHuiVisual
+    {
+public:
+
+    /* Constructors and destructor. */
+
+    /**
+     * Constructs and appends a new text visual to the owner control.
+     *
+     * @param aOwnerControl  Control that will own the new visual.
+     *
+     * @return  The new visual.
+     */
+    IMPORT_C static CHuiLineVisual* AddNewL(CHuiControl& aOwnerControl,
+                                            CHuiLayout* aParentLayout);
+
+    /**
+     * Constructor.
+     */
+    CHuiLineVisual(MHuiVisualOwner& aOwner);
+
+    /**
+     * Second-phase constructor.
+     */
+    void ConstructL();
+
+    /**
+     * Destructor.
+     */
+    virtual ~CHuiLineVisual();
+
+
+    /* Methods. */
+
+    /**
+     * Sets the path instance of the visual.
+     *
+     * @param aPath
+     * @param aOwnership
+     */
+    IMPORT_C void SetPath(CHuiCurvePath* aPath, THuiOwnership aOwnership);
+
+    /**
+     * Returns the path of the visual. The path can be modified via this
+     * reference.
+     */
+    IMPORT_C CHuiCurvePath& Path();
+
+    virtual TBool Changed() const;
+
+    virtual void ClearChanged();
+
+    /**
+     * Sets the image used by the line.
+     */
+    IMPORT_C void SetImage(const THuiImage& aImage);
+
+    /**
+     * Sets the alpha mapping function that generates alpha values for the
+     * path.
+     */
+    IMPORT_C void SetAlphaFunction(MHuiMappingFunction* aFunction);
+
+    /**
+     * Sets the width mapping function that generates width values for the
+     * path.
+     */
+    IMPORT_C void SetWidthFunction(MHuiMappingFunction* aFunction);
+
+     /**
+     * Sets the color of the line.
+     *
+     * @param aColor           Line color.
+     */
+    IMPORT_C void SetColor(const TRgb& aColor);
+
+    /**
+     * Draw the curve path.
+     */
+    virtual void DrawSelf(CHuiGc& aGc, const TRect& aDisplayRect) const;
+    
+    /**
+     * Expand dirty region
+     */
+    void ExpandRectWithContent(TRect& aRect) const;
+
+private:
+
+    /* Private methods */
+
+
+private:
+
+    /** The path of the visual. */
+    RHuiOwnedPointer<CHuiCurvePath> iPath;
+
+    /** Image used by the line. */
+    THuiImage iImage;
+
+    /** Value mapping function that generates alpha values for path
+        positions. */
+    MHuiMappingFunction* iAlphaFunction;
+
+    /** Custom width mapping function. */
+    MHuiMappingFunction* iWidthFunction;
+
+    /** Determines the width of the line. Depends on the current value
+        of iThickness. */
+    mutable THuiConstantMappingFunction iDefaultWidthFunction;
+
+public:
+
+    /* Public properties. */
+
+    /** Thickness of the line. */
+    THuiTimedValue iThickness;
+
+    /** Thickness of the shadow around the line. */
+    THuiTimedValue iShadowThickness;
+
+    /** Current start position on the path. */
+    THuiTimedValue iStartPos;
+
+    /** Current end position on the path. */
+    THuiTimedValue iEndPos;
+
+private:
+
+    /** Line color */
+    TRgb iColor;
+    };
+
+#endif  // __HUILINEVISUAL_H__
+