1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Graphics Extension Library header file

    15 *

    16 */

    17 

    18 

    19 #ifndef GFXROUNDRECTANGLEITERATORP_H

    20 #define GFXROUNDRECTANGLEITERATORP_H

    21 

    22 #include <e32base.h>

    23 #include <e32std.h>

    24 

    25 

    26 #include "GfxFloatFixPt.h"

    27 #include "GfxPathIterator.h"

    28 #include "GfxAffineTransform.h"

    29 

    30 class TGfxRoundRectangle2D;

    31 

    32 

    33 

    34 /**

    35  * This class provides the methods to cycle through points in a rounded rectangle.

    36  *

    37  *  @lib Gfx2D.lib

    38  *  @since 1.0

    39  */

    40 class CGfxRoundRectangleIteratorP : public CGfxPathIterator

    41     {

    42     public:

    43 

    44         /**

    45          * Constructor.

    46          *

    47          * @since 1.0

    48          * @param aRect : rounded rectangle to iterator through.

    49          * @param aTransform : transform to apply.

    50          * @return

    51          */

    52                                 CGfxRoundRectangleIteratorP( TGfxRoundRectangle2D* aRoundRect,

    53                                                              TGfxAffineTransform* aAffine );

    54 

    55 

    56         /**

    57          * Destructor.

    58          *

    59          * @since 1.0

    60          * @return

    61          */

    62          virtual                ~CGfxRoundRectangleIteratorP();

    63 

    64         // Implementation of MGfxPathIterator

    65 

    66         /**

    67          * Get the point defining the current segment.

    68          *

    69          * @since 1.0

    70          * @param aCoords : storage for points.

    71          * @return segment type.

    72          */

    73         TGfxSegType             CurrentSegment( TFloatFixPt* aCoords );

    74 

    75         /**

    76          * Determine if end of iterator has been reached.

    77          *

    78          * @since 1.0

    79          * @return true, if iterator reached end.

    80          */

    81         TBool                   IsDone();

    82 

    83         /**

    84          * Cycle to the next segment of the path.

    85          *

    86          * @since 1.0

    87          * @return

    88          */

    89         void                    NextL();

    90 

    91 

    92         /**

    93          * Convert to a polygon.

    94          *

    95          * @since 1.0

    96          * @param aRenderer : storage for points of polygon.

    97          * @param aFlatness : level of smoothness.

    98          * @return true, if iterator reached end.

    99          */

   100 

   101     private:

   102         TGfxRoundRectangle2D*   iRoundRect;

   103 

   104         TInt32                  iIdx;

   105         TFloatFixPt                  iRx, iRy;

   106     };

   107 

   108 #endif      // GFXROUNDRECTANGLEITERATORP_H