QxOrm 1.4.9
C++ Object Relational Mapping library
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QxModelRowCompare.h
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1/****************************************************************************
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3** https://www.qxorm.com/
4** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
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31
32#ifndef _QX_MODEL_ROW_COMPARE_H_
33#define _QX_MODEL_ROW_COMPARE_H_
34
35#ifdef _MSC_VER
36#pragma once
37#endif
38
47
48namespace qx {
49namespace model_view {
50
51QX_DLL_EXPORT bool compareQVariant(const QVariant & v1, const QVariant & v2, bool bAscending) QX_USED;
52
57template <typename T>
59{
60
63
64 QxModelRowCompare(bool bAscendingOrder, qx::IxDataMember * pDataMember) : m_bAscendingOrder(bAscendingOrder), m_pDataMember(pDataMember) { qAssert(m_pDataMember != NULL); }
65
66 bool operator()(const T & t1, const T & t2) const
67 {
68 if (! m_pDataMember || ! t1.second || ! t2.second) { return false; }
69 QVariant v1 = m_pDataMember->toVariant(& (* t1.second));
70 QVariant v2 = m_pDataMember->toVariant(& (* t2.second));
72 }
73
74};
75
76} // namespace model_view
77} // namespace qx
78
79#endif // _QX_MODEL_ROW_COMPARE_H_
Common interface for all class properties registered into QxOrm context.
#define QX_USED
Definition QxMacro.h:244
#define qAssert(x)
Definition QxMacro.h:52
#define QX_DLL_EXPORT
Definition QxMacro.h:182
qx::IxDataMember : common interface for all class properties registered into QxOrm context
virtual QVariant toVariant(const void *pOwner, const QString &sFormat, int iIndexName=-1, qx::cvt::context::ctx_type ctx=qx::cvt::context::e_no_context) const =0
QX_DLL_EXPORT bool compareQVariant(const QVariant &v1, const QVariant &v2, bool bAscending) QX_USED
Root namespace for all QxOrm library features.
qx::QxModelRowCompare : functor used to provide sort feature for all models based on qx::IxModel inte...
bool operator()(const T &t1, const T &t2) const
qx::IxDataMember * m_pDataMember
Data member associated to the model column to sort.
bool m_bAscendingOrder
Sort your model using ascending or descending order.
QxModelRowCompare(bool bAscendingOrder, qx::IxDataMember *pDataMember)