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1 /* |
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2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Graphics Extension Library header file |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef GFXROUNDRECTANGLEITERATORP_H |
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20 #define GFXROUNDRECTANGLEITERATORP_H |
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21 |
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22 #include <e32base.h> |
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23 #include <e32std.h> |
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24 |
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25 |
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26 #include "GfxFloatFixPt.h" |
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27 #include "GfxPathIterator.h" |
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28 #include "GfxAffineTransform.h" |
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29 |
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30 class TGfxRoundRectangle2D; |
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31 |
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32 |
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33 |
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34 /** |
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35 * This class provides the methods to cycle through points in a rounded rectangle. |
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36 * |
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37 * @lib Gfx2D.lib |
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38 * @since 1.0 |
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39 */ |
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40 class CGfxRoundRectangleIteratorP : public CGfxPathIterator |
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41 { |
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42 public: |
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43 |
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44 /** |
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45 * Constructor. |
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46 * |
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47 * @since 1.0 |
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48 * @param aRect : rounded rectangle to iterator through. |
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49 * @param aTransform : transform to apply. |
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50 * @return |
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51 */ |
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52 CGfxRoundRectangleIteratorP( TGfxRoundRectangle2D* aRoundRect, |
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53 TGfxAffineTransform* aAffine ); |
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54 |
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55 |
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56 /** |
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57 * Destructor. |
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58 * |
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59 * @since 1.0 |
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60 * @return |
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61 */ |
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62 virtual ~CGfxRoundRectangleIteratorP(); |
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63 |
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64 // Implementation of MGfxPathIterator |
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65 |
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66 /** |
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67 * Get the point defining the current segment. |
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68 * |
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69 * @since 1.0 |
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70 * @param aCoords : storage for points. |
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71 * @return segment type. |
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72 */ |
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73 TGfxSegType CurrentSegment( TFloatFixPt* aCoords ); |
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74 |
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75 /** |
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76 * Determine if end of iterator has been reached. |
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77 * |
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78 * @since 1.0 |
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79 * @return true, if iterator reached end. |
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80 */ |
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81 TBool IsDone(); |
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82 |
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83 /** |
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84 * Cycle to the next segment of the path. |
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85 * |
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86 * @since 1.0 |
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87 * @return |
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88 */ |
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89 void NextL(); |
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90 |
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91 |
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92 /** |
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93 * Convert to a polygon. |
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94 * |
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95 * @since 1.0 |
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96 * @param aRenderer : storage for points of polygon. |
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97 * @param aFlatness : level of smoothness. |
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98 * @return true, if iterator reached end. |
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99 */ |
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100 |
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101 private: |
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102 TGfxRoundRectangle2D* iRoundRect; |
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103 |
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104 TInt32 iIdx; |
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105 TFloatFixPt iRx, iRy; |
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106 }; |
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107 |
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108 #endif // GFXROUNDRECTANGLEITERATORP_H |