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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 GFXCURVEFLATTENERP_H |
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20 #define GFXCURVEFLATTENERP_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 #include "GfxFloatFixPt.h" |
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26 |
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27 class TGfxAffineTransform; |
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28 |
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29 |
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30 /** |
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31 * This class provides the methods to smooth a curve defined by control points. |
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32 * |
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33 * @lib Gfx2D.lib |
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34 * @since 1.0 |
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35 */ |
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36 class TGfxCurveFlattener |
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37 { |
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38 public: |
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39 |
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40 /** |
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41 * Construct a TGfxCurveFlattener with a transform matrix. |
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42 * |
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43 * @since 1.0 |
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44 * @param aTransform : Transformation matrix. |
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45 * @return |
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46 */ |
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47 TGfxCurveFlattener( TGfxAffineTransform* aTransform ); |
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48 |
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49 /** |
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50 * Add a quadratic curve to this object. |
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51 * |
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52 * @since 1.0 |
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53 * @param aRenderer : edge point list |
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54 * @param aCtrlPoints : control points. |
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55 * @param aLimit : number of points to flatten curve with. |
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56 * @return |
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57 */ |
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58 void AddSubCurveQuadL( CGfxEdgeListP* aRenderer, |
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59 TFloatFixPt * aCtrlPoints, |
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60 TInt32 aLimit ); |
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61 |
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62 /** |
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63 * Add a cubic curve to this object. |
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64 * |
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65 * @since 1.0 |
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66 * @param aRenderer : edge point list |
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67 * @param aCtrlPoints : control points. |
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68 * @param aLimit : number of points to flatten curve with. |
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69 * @return |
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70 */ |
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71 void AddSubCurveCubicL( CGfxEdgeListP* aRenderer, |
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72 TFloatFixPt * aCtrlPoints, |
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73 TInt32 aLimit ); |
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74 private: |
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75 |
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76 TGfxAffineTransform* iTransform; |
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77 }; |
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78 |
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79 #endif // GFXCURVEFLATTENERP_H |