|
46
|
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 GFXPATHITERATOR_H
|
|
|
20 |
#define GFXPATHITERATOR_H
|
|
|
21 |
|
|
|
22 |
#include <e32base.h>
|
|
|
23 |
#include <e32std.h>
|
|
|
24 |
#include "GfxFloatFixPt.h"
|
|
|
25 |
|
|
|
26 |
class TGfxAffineTransform;
|
|
|
27 |
class MGfxShape;
|
|
|
28 |
class CGfxEdgeListP;
|
|
|
29 |
|
|
|
30 |
|
|
|
31 |
/**
|
|
|
32 |
* This class defines the methods to cycle through points in a path.
|
|
|
33 |
*
|
|
|
34 |
* @lib Gfx2D.lib
|
|
|
35 |
* @since 1.0
|
|
|
36 |
*/
|
|
|
37 |
class CGfxPathIterator : public CBase
|
|
|
38 |
{
|
|
|
39 |
public:
|
|
|
40 |
|
|
|
41 |
/**
|
|
|
42 |
* Get the point defining the current segment.
|
|
|
43 |
*
|
|
|
44 |
* @since 1.0
|
|
|
45 |
* @param aCoords : storage for points.
|
|
|
46 |
* @return segment type.
|
|
|
47 |
*/
|
|
|
48 |
virtual TGfxSegType CurrentSegment( TFloatFixPt* aCoords ) = 0;
|
|
|
49 |
|
|
|
50 |
/**
|
|
|
51 |
* Determine if end of iterator has been reached.
|
|
|
52 |
*
|
|
|
53 |
* @since 1.0
|
|
|
54 |
* @return true, if iterator reached end.
|
|
|
55 |
*/
|
|
|
56 |
virtual TBool IsDone() = 0;
|
|
|
57 |
|
|
|
58 |
/**
|
|
|
59 |
* Cycle to the next segment of the path.
|
|
|
60 |
*
|
|
|
61 |
* @since 1.0
|
|
|
62 |
* @return
|
|
|
63 |
*/
|
|
|
64 |
virtual void NextL() = 0;
|
|
|
65 |
|
|
|
66 |
/**
|
|
|
67 |
* Convert to a polygon.
|
|
|
68 |
*
|
|
|
69 |
* @since 1.0
|
|
|
70 |
* @param aRenderer : storage for points of polygon.
|
|
|
71 |
* @param aFlatness : level of smoothness.
|
|
|
72 |
* @return true, if iterator reached end.
|
|
|
73 |
*/
|
|
|
74 |
virtual void PolygonizeL( CGfxEdgeListP* /*aRenderer*/,
|
|
|
75 |
TInt /*aFlatness*/ ) {};
|
|
|
76 |
|
|
|
77 |
|
|
|
78 |
protected:
|
|
|
79 |
TGfxAffineTransform* iTransform;
|
|
|
80 |
};
|
|
|
81 |
|
|
|
82 |
#endif // GFXPATHITERATOR_H
|