qqmlpropertymap.h 3.3 KB

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  1. /****************************************************************************
  2. **
  3. ** Copyright (C) 2016 The Qt Company Ltd.
  4. ** Contact: https://www.qt.io/licensing/
  5. **
  6. ** This file is part of the QtQml module of the Qt Toolkit.
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  8. ** $QT_BEGIN_LICENSE:LGPL$
  9. ** Commercial License Usage
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  17. ** GNU Lesser General Public License Usage
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  25. ** GNU General Public License Usage
  26. ** Alternatively, this file may be used under the terms of the GNU
  27. ** General Public License version 2.0 or (at your option) the GNU General
  28. ** Public license version 3 or any later version approved by the KDE Free
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  31. ** included in the packaging of this file. Please review the following
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  36. ** $QT_END_LICENSE$
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  38. ****************************************************************************/
  39. #ifndef QQMLPROPERTYMAP_H
  40. #define QQMLPROPERTYMAP_H
  41. #include <QtQml/qtqmlglobal.h>
  42. #include <QtCore/QObject>
  43. #include <QtCore/QHash>
  44. #include <QtCore/QStringList>
  45. #include <QtCore/QVariant>
  46. QT_BEGIN_NAMESPACE
  47. class QQmlPropertyMapPrivate;
  48. class Q_QML_EXPORT QQmlPropertyMap : public QObject
  49. {
  50. Q_OBJECT
  51. public:
  52. explicit QQmlPropertyMap(QObject *parent = Q_NULLPTR);
  53. virtual ~QQmlPropertyMap();
  54. QVariant value(const QString &key) const;
  55. void insert(const QString &key, const QVariant &value);
  56. void clear(const QString &key);
  57. Q_INVOKABLE QStringList keys() const;
  58. int count() const;
  59. int size() const;
  60. bool isEmpty() const;
  61. bool contains(const QString &key) const;
  62. QVariant &operator[](const QString &key);
  63. QVariant operator[](const QString &key) const;
  64. Q_SIGNALS:
  65. void valueChanged(const QString &key, const QVariant &value);
  66. protected:
  67. virtual QVariant updateValue(const QString &key, const QVariant &input);
  68. template<class DerivedType>
  69. QQmlPropertyMap(DerivedType *derived, QObject *parentObj)
  70. : QObject(*allocatePrivate(), parentObj)
  71. {
  72. Q_UNUSED(derived)
  73. init(&DerivedType::staticMetaObject);
  74. }
  75. private:
  76. void init(const QMetaObject *staticMetaObject);
  77. static QObjectPrivate *allocatePrivate();
  78. Q_DECLARE_PRIVATE(QQmlPropertyMap)
  79. Q_DISABLE_COPY(QQmlPropertyMap)
  80. };
  81. QT_END_NAMESPACE
  82. #endif