/usr/include/KF5/AkonadiWidgets/collectionstatisticsdelegate.h is in libkf5akonadi-dev 4:16.04.3-4.
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Copyright (c) 2008 Thomas McGuire <thomas.mcguire@gmx.net>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#ifndef AKONADI_COLLECTIONSTATISTICSDELEGATE_H
#define AKONADI_COLLECTIONSTATISTICSDELEGATE_H
#include "akonadiwidgets_export.h"
#include <QStyledItemDelegate>
class QAbstractItemView;
class QTreeView;
namespace Akonadi
{
class CollectionStatisticsDelegatePrivate;
/**
* @short A delegate that draws unread and total count for StatisticsProxyModel.
*
* The delegate provides the following features:
*
* - Collections with unread items will have the foldername and the unread
* column marked in bold.
* - If a folder is collapsed, the unread and the total column will contain
* the total sum of all child folders
* - It has the possibility to draw the unread count directly after the
* foldername, see toggleUnreadAfterFolderName().
*
* Example:
* @code
*
* Akonadi::EntityTreeView *view = new Akonadi::EntityTreeView( this );
*
* Akonadi::StatisticsProxyModel *statisticsProxy = new Akonadi::StatisticsProxyModel( view );
* view->setModel( statisticsProxy );
*
* Akonadi::CollectionStatisticsDelegate *delegate = new Akonadi::CollectionStatisticsDelegate( view );
* view->setItemDelegate( delegate );
*
* @endcode
*
* @note This proxy model is intended to be used on top of the EntityTreeModel. One of the proxies
* between the EntityTreeModel (the root model) and the view must be a StatisticsProxyModel. That
* proxy model may appear anywhere in the chain.
*
* @author Thomas McGuire <thomas.mcguire@gmx.net>
*/
class AKONADIWIDGETS_EXPORT CollectionStatisticsDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
/**
* Creates a new collection statistics delegate.
*
* @param parent The parent item view, which will also take ownership.
*
* @since 4.6
*/
explicit CollectionStatisticsDelegate(QAbstractItemView *parent);
/**
* Creates a new collection statistics delegate.
*
* @param parent The parent tree view, which will also take ownership.
*/
explicit CollectionStatisticsDelegate(QTreeView *parent);
/**
* Destroys the collection statistics delegate.
*/
~CollectionStatisticsDelegate();
/**
* @since 4.9.1
*/
void updatePalette();
public Q_SLOTS:
/**
* Sets whether the unread count is drawn next to the folder name.
*
* You probably want to enable this when the unread count is hidden only.
* This is disabled by default.
*
* @param enable If @c true, the unread count is drawn next to the folder name,
* if @c false, the folder name will be drawn normally.
*/
void setUnreadCountShown(bool enable);
/**
* Returns whether the unread count is drawn next to the folder name.
*/
bool unreadCountShown() const;
/**
* @param enable new mode of progress animation
*/
void setProgressAnimationEnabled(bool enable);
bool progressAnimationEnabled() const;
protected:
/**
* @param painter pointer for QPainter to use in method
* @param option style options
* @param index model index (QModelIndex)
*/
void paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const Q_DECL_OVERRIDE;
/**
* @param option style option view item
* @param index model index (QModelIndex)
*/
void initStyleOption(QStyleOptionViewItem *option,
const QModelIndex &index) const Q_DECL_OVERRIDE;
private:
//@cond PRIVATE
CollectionStatisticsDelegatePrivate *const d_ptr;
//@endcond
Q_DECLARE_PRIVATE(CollectionStatisticsDelegate)
};
}
#endif
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