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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtGui module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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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 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef QVECTORPATH_P_H |
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43 #define QVECTORPATH_P_H |
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44 |
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45 // |
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46 // W A R N I N G |
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47 // ------------- |
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48 // |
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49 // This file is not part of the Qt API. It exists purely as an |
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50 // implementation detail. This header file may change from version to |
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51 // version without notice, or even be removed. |
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52 // |
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53 // We mean it. |
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54 // |
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55 |
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56 #include <QtGui/qpaintengine.h> |
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57 |
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58 #include <private/qpaintengine_p.h> |
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59 #include <private/qstroker_p.h> |
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60 #include <private/qpainter_p.h> |
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61 |
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62 |
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63 QT_BEGIN_HEADER |
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64 |
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65 QT_BEGIN_NAMESPACE |
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66 |
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67 QT_MODULE(Gui) |
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68 |
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69 |
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70 #define QVECTORPATH_NO_CACHE |
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71 |
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72 struct QRealRect { |
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73 qreal x1, y1, x2, y2; |
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74 }; |
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75 |
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76 class Q_GUI_EXPORT QVectorPath |
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77 { |
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78 public: |
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79 enum Hint { |
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80 // Basic shapes... |
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81 LinesHint = 0x0001, // Just plain lines... |
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82 RectangleHint = 0x0002, |
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83 ConvexPolygonHint = 0x0003, // Convex polygon... |
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84 NonISectPolygonHint = 0x0004, // concave polygon, but not intersecting.. |
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85 NonCurvedShapeHint = 0x0005, // Generic polygon, possibly self-intersecting... |
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86 CurvedShapeHint = 0x0006, // Generic vector path.. |
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87 EllipseHint = 0x0007, |
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88 ShapeHintMask = 0x000f, |
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89 |
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90 // Other hints |
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91 CacheHint = 0x0100, |
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92 ControlPointRect = 0x0200, // Set if the control point rect has been calculated... |
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93 |
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94 // Shape rendering specifiers... |
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95 OddEvenFill = 0x1000, |
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96 WindingFill = 0x2000, |
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97 ImplicitClose = 0x4000 |
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98 }; |
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99 |
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100 // ### Falcon: introduca a struct XY for points so lars is not so confused... |
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101 QVectorPath(const qreal *points, |
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102 int count, |
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103 const QPainterPath::ElementType *elements = 0, |
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104 uint hints = CurvedShapeHint) |
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105 : m_elements(elements), |
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106 m_points(points), |
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107 m_count(count), |
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108 m_hints(hints) |
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109 #ifndef QVECTORPATH_NO_CACHE |
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110 , m_cache(0) |
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111 #endif |
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112 { |
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113 } |
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114 |
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115 QRectF controlPointRect() const; |
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116 |
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117 inline Hint shape() const { return (Hint) (m_hints & ShapeHintMask); } |
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118 |
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119 inline bool hasCacheHint() const { return m_hints & CacheHint; } |
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120 inline bool hasImplicitClose() const { return m_hints & ImplicitClose; } |
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121 inline bool hasWindingFill() const { return m_hints & WindingFill; } |
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122 |
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123 inline uint hints() const { return m_hints; } |
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124 |
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125 inline const QPainterPath::ElementType *elements() const { return m_elements; } |
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126 inline const qreal *points() const { return m_points; } |
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127 inline bool isEmpty() const { return m_points == 0; } |
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128 |
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129 inline int elementCount() const { return m_count; } |
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130 inline const QPainterPath convertToPainterPath() const; |
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131 |
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132 static inline uint polygonFlags(QPaintEngine::PolygonDrawMode mode); |
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133 |
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134 private: |
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135 Q_DISABLE_COPY(QVectorPath) |
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136 |
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137 #ifndef QVECTORPATH_NO_CACHE |
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138 struct CacheEntry { |
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139 void *engine; |
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140 int id; |
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141 void *extra; |
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142 CacheEntry *next; |
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143 }; |
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144 |
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145 void addCacheData(CacheEntry *d) { |
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146 d->next = m_cache; |
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147 m_cache = d; |
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148 } |
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149 |
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150 CacheEntry *m_cache; |
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151 #endif |
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152 |
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153 const QPainterPath::ElementType *m_elements; |
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154 const qreal *m_points; |
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155 const int m_count; |
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156 |
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157 mutable uint m_hints; |
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158 mutable QRealRect m_cp_rect; |
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159 }; |
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160 |
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161 Q_GUI_EXPORT const QVectorPath &qtVectorPathForPath(const QPainterPath &path); |
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162 |
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163 QT_END_NAMESPACE |
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164 |
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165 QT_END_HEADER |
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166 |
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167 #endif |