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cache_proxy_model.h
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1
9
10#ifndef CACHE_PROXY_MODEL_H
11#define CACHE_PROXY_MODEL_H
12
13#include <config.h>
14
15#include <QIdentityProxyModel>
16#include <QStandardItemModel>
17
25 class CacheProxyModel : public QIdentityProxyModel
26{
27 Q_OBJECT
28
29 public:
34 CacheProxyModel(QObject *parent = 0);
35
42 QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
43
49 Qt::ItemFlags flags(const QModelIndex &index) const override;
50
58 QVariant headerData(int section, Qt::Orientation orientation,
59 int role = Qt::DisplayRole) const override;
60
66 int rowCount(const QModelIndex &parent = QModelIndex()) const override;
67
73 int columnCount(const QModelIndex &parent = QModelIndex()) const override;
74
79 void setSourceModel(QAbstractItemModel *newSourceModel) override;
80
81 private:
83 mutable QStandardItemModel cache;
84
89 bool hasModel() const { return sourceModel() != &cache; }
90
91 private slots:
95 void resetCacheModel();
96};
97#endif
CacheProxyModel::headerData
QVariant headerData(int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
Retrieves the header data for a given section, orientation, and role.
Definition cache_proxy_model.cpp:43
CacheProxyModel::setSourceModel
void setSourceModel(QAbstractItemModel *newSourceModel) override
Sets a new source model to be cached and proxied.
Definition cache_proxy_model.cpp:81
CacheProxyModel::CacheProxyModel
CacheProxyModel(QObject *parent=0)
Constructs a new CacheProxyModel.
Definition cache_proxy_model.cpp:12
CacheProxyModel::rowCount
int rowCount(const QModelIndex &parent=QModelIndex()) const override
Returns the number of rows under the given parent.
Definition cache_proxy_model.cpp:55
CacheProxyModel::columnCount
int columnCount(const QModelIndex &parent=QModelIndex()) const override
Returns the number of columns under the given parent.
Definition cache_proxy_model.cpp:66
CacheProxyModel::flags
Qt::ItemFlags flags(const QModelIndex &index) const override
Retrieves the item flags for the given index.
Definition cache_proxy_model.cpp:33
CacheProxyModel::data
QVariant data(const QModelIndex &index, int role=Qt::DisplayRole) const override
Retrieves data from the model for the given index and role.
Definition cache_proxy_model.cpp:16