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favoritesitemview.h
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favoritesitemview.h
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/*
favoritesitemview.h
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2013-2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Waqar Ahmed <waqar.ahmed@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#ifndef GAMMARAY_FAVORITESITEMVIEW_H
#define GAMMARAY_FAVORITESITEMVIEW_H
#include <common/objectbroker.h>
#include <common/favoriteobjectinterface.h>
#include <common/objectmodel.h>
#include <ui/deferredtreeview.h>
#include <QAbstractItemModel>
#include <QAbstractItemView>
#include <QMenu>
#include <QPointer>
#include <QSortFilterProxyModel>
namespace GammaRay {
class FavoritesModel final : public QSortFilterProxyModel
{
public:
explicit FavoritesModel(QAbstractItemModel *sourceModel, QObject *parent = nullptr)
: QSortFilterProxyModel(parent)
{
setFilterRole(ObjectModel::IsFavoriteRole);
setFilterKeyColumn(0);
setSourceModel(sourceModel);
}
bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override
{
auto idx = sourceModel()->index(source_row, filterKeyColumn(), source_parent);
return idx.data(ObjectModel::IsFavoriteRole).toBool();
}
};
template<typename Base>
class FavoritesItemView : public Base
{
public:
FavoritesItemView(QWidget *parent = nullptr)
: Base(parent)
{
Base::setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
Base::setContextMenuPolicy(Qt::CustomContextMenu);
Base::connect(this, &Base::customContextMenuRequested,
this, &FavoritesItemView::onCustomContextMenuRequested);
Base::connect(this, &Base::clicked, this, &FavoritesItemView<Base>::onIndexClicked);
}
void setSourceView(QAbstractItemView *view)
{
setModel(new FavoritesModel(view->model(), this));
m_sourceView = view;
}
protected:
void setModel(QAbstractItemModel *m) override
{
if (Base::model())
Base::disconnect(Base::model(), &QAbstractItemModel::rowsRemoved, this,
&FavoritesItemView::rowsRemoved);
Base::setModel(m);
if (Base::model() && Base::model()->rowCount() == 0)
Base::setHidden(true);
Base::connect(m, &QAbstractItemModel::rowsRemoved, this, &FavoritesItemView::onRowsRemoved);
}
private:
void onRowsRemoved()
{
if (Base::model() && Base::model()->rowCount() == 0)
Base::setHidden(true);
}
void rowsInserted(const QModelIndex &parent, int s, int e) override
{
if (Base::isHidden())
Base::setHidden(false);
Base::rowsInserted(parent, s, e);
}
void onCustomContextMenuRequested(const QPoint &pos)
{
auto index = Base::indexAt(pos);
if (!index.isValid() || !index.data(ObjectModel::IsFavoriteRole).toBool())
return;
index = index.sibling(index.row(), 0);
const auto objectId = index.data(ObjectModel::ObjectIdRole).template value<ObjectId>();
if (objectId.isNull())
return;
QMenu menu;
menu.addAction(Base::tr("Remove from favorites"), this, [objectId] {
ObjectBroker::object<FavoriteObjectInterface *>()->unfavoriteObject(objectId);
});
menu.exec(Base::viewport()->mapToGlobal(pos));
}
virtual void onIndexClicked(const QModelIndex &idx)
{
if (!idx.isValid() || !m_sourceView)
return;
auto favProxyModel = qobject_cast<QAbstractProxyModel *>(Base::model());
auto sourceIdx = favProxyModel->mapToSource(idx);
m_sourceView->selectionModel()->select(sourceIdx, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
}
protected:
QPointer<QAbstractItemView> m_sourceView;
};
class GAMMARAY_UI_EXPORT ObjectsFavoriteView final : public FavoritesItemView<DeferredTreeView>
{
Q_OBJECT
public:
using FavoritesItemView<DeferredTreeView>::FavoritesItemView;
private:
void setModel(QAbstractItemModel *model) override;
void onIndexClicked(const QModelIndex &idx) override;
private:
QObject *m_proxyMapper = nullptr;
};
}
#endif