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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 QtDeclarative 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 QDECLARATIVEPROPERTYCACHE_P_H |
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43 #define QDECLARATIVEPROPERTYCACHE_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 "private/qdeclarativerefcount_p.h" |
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57 #include "private/qdeclarativecleanup_p.h" |
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58 #include "private/qdeclarativenotifier_p.h" |
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59 |
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60 #include <QtCore/qvector.h> |
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61 |
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62 #include <QtScript/private/qscriptdeclarativeclass_p.h> |
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63 QT_BEGIN_NAMESPACE |
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64 |
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65 class QDeclarativeEngine; |
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66 class QMetaProperty; |
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67 |
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68 class QDeclarativePropertyCache : public QDeclarativeRefCount, public QDeclarativeCleanup |
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69 { |
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70 public: |
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71 QDeclarativePropertyCache(QDeclarativeEngine *); |
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72 QDeclarativePropertyCache(QDeclarativeEngine *, const QMetaObject *); |
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73 virtual ~QDeclarativePropertyCache(); |
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74 |
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75 struct Data { |
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76 inline Data(); |
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77 inline bool operator==(const Data &); |
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78 |
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79 enum Flag { |
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80 NoFlags = 0x00000000, |
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81 |
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82 // Can apply to all properties, except IsFunction |
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83 IsConstant = 0x00000001, |
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84 IsWritable = 0x00000002, |
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85 IsResettable = 0x00000004, |
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86 |
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87 // These are mutualy exclusive |
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88 IsFunction = 0x00000010, |
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89 IsQObjectDerived = 0x00000020, |
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90 IsEnumType = 0x00000040, |
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91 IsQList = 0x00000080, |
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92 IsQmlBinding = 0x00000100, |
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93 IsQScriptValue = 0x00000200, |
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94 |
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95 // Apply only to IsFunctions |
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96 IsVMEFunction = 0x00000400, |
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97 HasArguments = 0x00000800 |
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98 |
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99 }; |
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100 Q_DECLARE_FLAGS(Flags, Flag) |
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101 |
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102 bool isValid() const { return coreIndex != -1; } |
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103 |
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104 Flags flags; |
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105 int propType; |
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106 int coreIndex; |
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107 int notifyIndex; |
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108 |
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109 static Flags flagsForProperty(const QMetaProperty &, QDeclarativeEngine *engine = 0); |
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110 void load(const QMetaProperty &, QDeclarativeEngine *engine = 0); |
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111 void load(const QMetaMethod &); |
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112 QString name(QObject *); |
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113 QString name(const QMetaObject *); |
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114 }; |
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115 |
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116 struct ValueTypeData { |
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117 inline ValueTypeData(); |
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118 inline bool operator==(const ValueTypeData &); |
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119 Data::Flags flags; // flags of the access property on the value type proxy object |
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120 int valueTypeCoreIdx; // The prop index of the access property on the value type proxy object |
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121 int valueTypePropType; // The QVariant::Type of access property on the value type proxy object |
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122 }; |
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123 |
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124 void update(QDeclarativeEngine *, const QMetaObject *); |
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125 |
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126 QDeclarativePropertyCache *copy() const; |
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127 void append(QDeclarativeEngine *, const QMetaObject *, Data::Flag propertyFlags = Data::NoFlags, |
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128 Data::Flag methodFlags = Data::NoFlags); |
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129 |
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130 static QDeclarativePropertyCache *create(QDeclarativeEngine *, const QMetaObject *); |
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131 static Data create(const QMetaObject *, const QString &); |
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132 |
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133 inline Data *property(const QScriptDeclarativeClass::Identifier &id) const; |
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134 Data *property(const QString &) const; |
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135 Data *property(int) const; |
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136 QStringList propertyNames() const; |
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137 |
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138 inline QDeclarativeEngine *qmlEngine() const; |
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139 static Data *property(QDeclarativeEngine *, QObject *, const QScriptDeclarativeClass::Identifier &, Data &); |
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140 static Data *property(QDeclarativeEngine *, QObject *, const QString &, Data &); |
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141 protected: |
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142 virtual void clear(); |
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143 |
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144 private: |
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145 struct RData : public Data, public QDeclarativeRefCount { |
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146 QScriptDeclarativeClass::PersistentIdentifier identifier; |
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147 }; |
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148 |
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149 typedef QVector<RData *> IndexCache; |
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150 typedef QHash<QString, RData *> StringCache; |
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151 typedef QHash<QScriptDeclarativeClass::Identifier, RData *> IdentifierCache; |
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152 |
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153 QDeclarativeEngine *engine; |
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154 IndexCache indexCache; |
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155 StringCache stringCache; |
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156 IdentifierCache identifierCache; |
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157 }; |
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158 Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativePropertyCache::Data::Flags); |
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159 |
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160 QDeclarativePropertyCache::Data::Data() |
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161 : flags(0), propType(0), coreIndex(-1), notifyIndex(-1) |
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162 { |
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163 } |
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164 |
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165 bool QDeclarativePropertyCache::Data::operator==(const QDeclarativePropertyCache::Data &other) |
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166 { |
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167 return flags == other.flags && |
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168 propType == other.propType && |
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169 coreIndex == other.coreIndex && |
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170 notifyIndex == other.notifyIndex; |
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171 } |
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172 |
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173 QDeclarativePropertyCache::Data * |
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174 QDeclarativePropertyCache::property(const QScriptDeclarativeClass::Identifier &id) const |
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175 { |
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176 return identifierCache.value(id); |
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177 } |
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178 |
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179 QDeclarativePropertyCache::ValueTypeData::ValueTypeData() |
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180 : flags(QDeclarativePropertyCache::Data::NoFlags), valueTypeCoreIdx(-1), valueTypePropType(0) |
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181 { |
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182 } |
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183 |
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184 bool QDeclarativePropertyCache::ValueTypeData::operator==(const ValueTypeData &o) |
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185 { |
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186 return flags == o.flags && |
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187 valueTypeCoreIdx == o.valueTypeCoreIdx && |
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188 valueTypePropType == o.valueTypePropType; |
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189 } |
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190 |
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191 QDeclarativeEngine *QDeclarativePropertyCache::qmlEngine() const |
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192 { |
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193 return engine; |
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194 } |
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195 |
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196 QT_END_NAMESPACE |
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197 |
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198 #endif // QDECLARATIVEPROPERTYCACHE_P_H |