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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 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 Qt Mobility Components. |
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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 |
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43 #ifndef QCONTACTDETAIL_P_H |
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44 #define QCONTACTDETAIL_P_H |
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45 |
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46 // |
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47 // W A R N I N G |
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48 // ------------- |
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49 // |
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50 // This file is not part of the Qt API. It exists purely as an |
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51 // implementation detail. This header file may change from version to |
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52 // version without notice, or even be removed. |
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53 // |
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54 // We mean it. |
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55 // |
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56 |
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57 #include "qcontactdetail.h" |
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58 |
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59 #include <QSharedData> |
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60 #include <QString> |
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61 #include <QHash> |
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62 |
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63 QTM_BEGIN_NAMESPACE |
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64 |
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65 /* |
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66 Yet another string class |
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67 |
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68 Mostly a wrapper around char *, where we do pointer equality checks before |
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69 a strcmp, given our common use case of equivalent pointers. |
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70 |
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71 Also handles when things get passed in as a QString, by converting to Latin1 |
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72 and caching the result, and caching conversions to QString (hit by definitionName a lot) |
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73 */ |
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74 class QContactStringHolder |
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75 { |
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76 public: |
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77 QContactStringHolder() |
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78 : m_str(0) |
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79 { |
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80 } |
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81 |
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82 ~QContactStringHolder() |
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83 { |
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84 } |
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85 |
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86 QContactStringHolder(const QContactStringHolder& other) |
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87 : m_str(other.m_str) |
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88 { |
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89 } |
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90 |
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91 QContactStringHolder& operator=(const QContactStringHolder& other) |
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92 { |
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93 m_str = other.m_str; // checking for ==this is not worth the effort |
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94 return *this; |
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95 } |
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96 |
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97 QContactStringHolder(const char *str) |
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98 : m_str(str) |
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99 { |
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100 } |
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101 |
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102 QContactStringHolder& operator=(const char *str) |
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103 { |
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104 m_str = str; |
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105 return *this; |
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106 } |
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107 |
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108 explicit QContactStringHolder(const QString& str) |
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109 { |
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110 *this = str; |
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111 } |
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112 |
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113 QContactStringHolder& operator=(const QString& str) |
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114 { |
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115 m_str = s_allocated.value(str, 0); |
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116 if (!m_str) { |
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117 m_str = qstrdup(str.toLatin1().constData()); |
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118 s_allocated.insert(str, const_cast<char*>(m_str)); // it's my pointer |
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119 } |
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120 return *this; |
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121 } |
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122 |
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123 bool operator==(const char* other) const |
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124 { |
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125 return other == m_str || (qstrcmp(other, m_str) == 0); |
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126 } |
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127 |
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128 bool operator==(const QString& other) const |
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129 { |
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130 return (s_allocated.value(other, 0) == m_str) || (other == QLatin1String(m_str)); |
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131 } |
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132 |
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133 bool operator==(const QContactStringHolder& other) const |
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134 { |
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135 return (other.m_str == m_str) || (qstrcmp(other.m_str, m_str) == 0); |
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136 } |
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137 |
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138 QString toQString() const |
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139 { |
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140 QString s = s_qstrings.value(m_str); |
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141 if (!s.isEmpty()) |
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142 return s; |
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143 s = QString::fromLatin1(m_str); |
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144 s_qstrings.insert(m_str, s); |
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145 return s; |
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146 } |
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147 |
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148 public: |
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149 // The only data we have |
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150 const char* m_str; |
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151 |
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152 static QHash<QString, char*> s_allocated; |
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153 static QHash<const char *, QString> s_qstrings; |
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154 }; |
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155 |
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156 uint qHash(const QContactStringHolder& key); |
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157 |
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158 class QContactDetailPrivate : public QSharedData |
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159 { |
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160 public: |
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161 QContactDetailPrivate() |
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162 : QSharedData(), |
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163 m_id(lastDetailKey.fetchAndAddOrdered(1)), |
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164 m_access(QContactDetail::NoConstraint) |
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165 { |
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166 } |
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167 |
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168 QContactDetailPrivate(const QContactDetailPrivate& other) |
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169 : QSharedData(other), |
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170 m_id(other.m_id), |
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171 m_definitionName(other.m_definitionName), |
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172 m_values(other.m_values), |
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173 m_access(other.m_access) |
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174 { |
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175 } |
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176 |
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177 ~QContactDetailPrivate() |
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178 { |
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179 } |
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180 |
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181 int m_id; // internal, unique id. |
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182 QContactStringHolder m_definitionName; |
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183 QHash<QContactStringHolder, QVariant> m_values; |
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184 QContactDetail::AccessConstraints m_access; |
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185 |
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186 static QAtomicInt lastDetailKey; |
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187 |
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188 static void setAccessConstraints(QContactDetail *d, QContactDetail::AccessConstraints constraint) |
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189 { |
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190 d->d->m_access = constraint; |
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191 } |
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192 |
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193 static const QContactDetailPrivate* detailPrivate(const QContactDetail& detail) |
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194 { |
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195 return detail.d.constData(); |
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196 } |
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197 }; |
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198 |
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199 QTM_END_NAMESPACE |
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200 |
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201 Q_DECLARE_TYPEINFO(QTM_PREPEND_NAMESPACE(QContactStringHolder), Q_MOVABLE_TYPE); |
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202 |
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203 #endif |