Marble

BranchFilterProxyModel.cpp
1// SPDX-License-Identifier: LGPL-2.1-or-later
2//
3// SPDX-FileCopyrightText: 2010 Dennis Nienhüser <nienhueser@kde.org>
4// SPDX-FileCopyrightText: 2012 Thibaut Gridel <tgridel@free.fr>
5
6#include "BranchFilterProxyModel.h"
7
8#include "MarblePlacemarkModel.h"
9#include "GeoDataContainer.h"
10#include "GeoDataTreeModel.h"
11
12namespace Marble
13{
14
15BranchFilterProxyModel::BranchFilterProxyModel( QObject *parent ) :
16 QSortFilterProxyModel( parent ), m_treeModel( nullptr )
17{
18 // nothing to do
19}
20
21/// sets the folder index for which we want to see bookmarks
22void BranchFilterProxyModel::setBranchIndex( GeoDataTreeModel* treeModel, const QModelIndex &index )
23{
24 Q_ASSERT( index.isValid() );
25 Q_ASSERT( index.model() == treeModel );
26 m_treeModel = treeModel;
27 m_branchIndex = index;
28 invalidateFilter();
29}
30
31/// determines if such row should be filtered.
32/// Beware, all parents of our folder must be accepted as well
33bool BranchFilterProxyModel::filterAcceptsRow( int sourceRow, const QModelIndex &sourceParent ) const
34{
35 if ( !m_treeModel || !m_branchIndex.isValid() ) {
36 return true;
37 }
38
39 Q_ASSERT( m_treeModel == sourceModel() );
40 if ( sourceParent.isValid() ) {
41 Q_ASSERT( sourceParent.model() == m_treeModel );
42 }
43 QModelIndex rowIndex = sourceModel()->index( sourceRow, 0, sourceParent );
44 Q_ASSERT( rowIndex.isValid() );
45
46 // return true for all non folder children of m_branchIndex
47 if( sourceParent == m_branchIndex ) {
48 GeoDataObject* obj = qvariant_cast<GeoDataObject*>( rowIndex.data( MarblePlacemarkModel::ObjectPointerRole ) );
49 return !dynamic_cast<const GeoDataContainer *>(obj);
50 }
51
52 // return true if rowIndex is a parent of m_branchIndex
53 QModelIndex tmpIndex = m_branchIndex;
54 while ( tmpIndex.isValid() && tmpIndex != rowIndex ) {
55 tmpIndex = tmpIndex.parent();
56 }
57 return tmpIndex == rowIndex;
58}
59
60}
Binds a QML item to a specific geodetic location in screen coordinates.
QVariant data(int role) const const
bool isValid() const const
const QAbstractItemModel * model() const const
QModelIndex parent() const const
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