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refs #452, model base class

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* drag and drop support
* model can be marked as destoyed when view is about to be destroyed (to cancel pending actions)
This commit is contained in:
Klaus Basan
2015-09-23 20:05:41 +02:00
committed by Mathew Sutcliffe
parent 0d27351e11
commit fb4baa0ef8
2 changed files with 171 additions and 39 deletions
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43
src/blackgui/models/listmodelbase.h
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@@ -14,7 +14,7 @@
#include "blackgui/blackguiexport.h"
#include "blackgui/models/columns.h"
#include "blackgui/models/listmodelfilter.h"
#include "blackgui/models/modelfilter.h"
#include "blackmisc/worker.h"
#include "blackmisc/propertyindex.h"
#include <QAbstractItemModel>
@@ -75,12 +75,27 @@ namespace BlackGui
//! Get sort order
virtual Qt::SortOrder getSortOrder() const { return this->m_sortOrder; }
//! \copydoc QAbstractTableModel::flags
Qt::ItemFlags flags(const QModelIndex &index) const override;
//! Translation context
virtual const QString &getTranslationContext() const;
//! \copydoc QAbstractItemModel::flags
virtual Qt::ItemFlags flags(const QModelIndex &index) const override;
//! \copydoc QAbstractItemModel::supportedDragActions
virtual Qt::DropActions supportedDragActions() const override;
//! \copydoc QAbstractItemModel::supportedDropActions
virtual Qt::DropActions supportedDropActions() const override;
//! \copydoc QAbstractItemModel::supportedDropActions
virtual QStringList mimeTypes() const override;
//! Mark as about to be destroyed, normally marked from view
void markDestroyed();
//! Model about to be destroyed?
bool isModelDestroyed();
signals:
//! Asynchronous update finished
void asyncUpdateFinished();
@@ -101,19 +116,15 @@ namespace BlackGui
//! Constructor
//! \param translationContext I18N context
//! \param parent
CListModelBaseNonTemplate(const QString &translationContext, QObject *parent = nullptr)
: QAbstractItemModel(parent), m_columns(translationContext), m_sortedColumn(-1), m_sortOrder(Qt::AscendingOrder)
{
// non unique default name, set translation context as default
this->setObjectName(translationContext);
}
CListModelBaseNonTemplate(const QString &translationContext, QObject *parent = nullptr);
//! Helper method with template free signature
virtual int performUpdateContainer(const BlackMisc::CVariant &variant, bool sort) = 0;
CColumns m_columns; //!< columns metadata
int m_sortedColumn; //!< current sort column
Qt::SortOrder m_sortOrder; //!< sort order (asc/desc)
CColumns m_columns; //!< columns metadata
int m_sortedColumn; //!< current sort column
Qt::SortOrder m_sortOrder; //!< sort order (asc/desc)
bool m_modelDestroyed = false; //!< model is about to be destroyed
};
//! List model
@@ -201,6 +212,9 @@ namespace BlackGui
//! Empty?
virtual bool isEmpty() const;
//! \copydoc QAbstractItemModel::mimeData
virtual QMimeData *mimeData(const QModelIndexList &indexes) const override;
//! Filter available
bool hasFilter() const;
@@ -208,7 +222,7 @@ namespace BlackGui
void removeFilter();
//! Set the filter
void setFilter(std::unique_ptr<IModelFilter<ContainerType> > &filter);
void takeFilterOwnership(std::unique_ptr<IModelFilter<ContainerType> > &filter);
protected:
std::unique_ptr<IModelFilter<ContainerType> > m_filter; //!< Used filter
@@ -233,7 +247,6 @@ namespace BlackGui
void emitRowCountChanged();
ContainerType m_container; //!< used container
ContainerType m_containerFiltered; //!< cache for filtered container data
};
} // namespace