mirror of
https://invent.kde.org/graphics/okular
synced 2024-08-24 18:35:37 +00:00
619 lines
20 KiB
C++
619 lines
20 KiB
C++
/***************************************************************************
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* Copyright (C) 2007 by Tobias Koenig <tokoe@kde.org> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "annotationproxymodels.h"
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#include <QList>
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#include <QItemSelection>
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#include <QIcon>
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#include "annotationmodel.h"
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#include "debug_ui.h"
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static quint32 mixIndex( int row, int column )
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{
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return ( row << 4 ) | column;
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}
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PageFilterProxyModel::PageFilterProxyModel( QObject *parent )
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: QSortFilterProxyModel( parent ),
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mGroupByCurrentPage( false ),
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mCurrentPage( -1 )
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{
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setDynamicSortFilter( true );
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}
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void PageFilterProxyModel::groupByCurrentPage( bool value )
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{
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if ( mGroupByCurrentPage == value )
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return;
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mGroupByCurrentPage = value;
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invalidateFilter();
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}
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void PageFilterProxyModel::setCurrentPage( int page )
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{
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if ( mCurrentPage == page )
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return;
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mCurrentPage = page;
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// no need to invalidate when we're not showing the current page only
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if ( !mGroupByCurrentPage )
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return;
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invalidateFilter();
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}
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bool PageFilterProxyModel::filterAcceptsRow( int row, const QModelIndex &sourceParent ) const
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{
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if ( !mGroupByCurrentPage )
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return true;
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const QModelIndex pageIndex = sourceModel()->index( row, 0, sourceParent );
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int page = sourceModel()->data( pageIndex, AnnotationModel::PageRole ).toInt();
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return (page == mCurrentPage);
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}
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PageGroupProxyModel::PageGroupProxyModel( QObject *parent )
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: QAbstractProxyModel( parent ),
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mGroupByPage( false )
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{
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}
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int PageGroupProxyModel::columnCount( const QModelIndex &parentIndex ) const
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{
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// For top-level and second level we have always only one column
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if ( mGroupByPage ) {
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if ( parentIndex.isValid() ) {
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if ( parentIndex.parent().isValid() )
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return 0;
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else {
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return 1; // second-level
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}
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} else {
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return 1; // top-level
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}
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} else {
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if ( !parentIndex.isValid() ) // top-level
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return 1;
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else
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return 0;
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}
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return 1;
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}
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int PageGroupProxyModel::rowCount( const QModelIndex &parentIndex ) const
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{
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if ( mGroupByPage ) {
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if ( parentIndex.isValid() ) {
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if ( parentIndex.parent().isValid() )
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return 0;
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else {
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return mTreeIndexes[ parentIndex.row() ].second.count(); // second-level
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}
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} else {
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return mTreeIndexes.count(); // top-level
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}
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} else {
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if ( !parentIndex.isValid() ) // top-level
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return mIndexes.count();
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else
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return 0;
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}
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}
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QModelIndex PageGroupProxyModel::index( int row, int column, const QModelIndex &parentIndex ) const
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{
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if ( row < 0 || column != 0 )
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return QModelIndex();
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if ( mGroupByPage ) {
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if ( parentIndex.isValid() ) {
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if ( parentIndex.row() >= 0 && parentIndex.row() < mTreeIndexes.count()
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&& row < mTreeIndexes[ parentIndex.row() ].second.count() )
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return createIndex( row, column, qint32( parentIndex.row() + 1 ) );
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else
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return QModelIndex();
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} else {
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if ( row < mTreeIndexes.count() )
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return createIndex( row, column );
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else
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return QModelIndex();
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}
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} else {
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if ( row < mIndexes.count() )
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return createIndex( row, column, mixIndex( parentIndex.row(), parentIndex.column() ) );
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else
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return QModelIndex();
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}
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}
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QModelIndex PageGroupProxyModel::parent( const QModelIndex &idx ) const
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{
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if ( mGroupByPage ) {
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if ( idx.internalId() == 0 ) // top-level
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return QModelIndex();
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else
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return index( idx.internalId() - 1, idx.column() );
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} else {
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// We have only top-level items
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return QModelIndex();
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}
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}
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QModelIndex PageGroupProxyModel::mapFromSource( const QModelIndex &sourceIndex ) const
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{
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if ( mGroupByPage ) {
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if ( sourceIndex.parent().isValid() ) {
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return index( sourceIndex.row(), sourceIndex.column(), sourceIndex.parent() );
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} else {
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return index( sourceIndex.row(), sourceIndex.column() );
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}
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} else {
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for ( int i = 0; i < mIndexes.count(); ++i ) {
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if ( mIndexes[ i ] == sourceIndex )
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return index( i, 0 );
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}
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return QModelIndex();
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}
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}
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QModelIndex PageGroupProxyModel::mapToSource( const QModelIndex &proxyIndex ) const
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{
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if ( !proxyIndex.isValid() )
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return QModelIndex();
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if ( mGroupByPage ) {
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if ( proxyIndex.internalId() == 0 ) {
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if ( proxyIndex.row() >= mTreeIndexes.count() || proxyIndex.row() < 0 )
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return QModelIndex();
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return mTreeIndexes[ proxyIndex.row() ].first;
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} else {
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if ( qint32(proxyIndex.internalId()) - 1 >= mTreeIndexes.count() ||
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proxyIndex.row() >= mTreeIndexes[ proxyIndex.internalId() - 1 ].second.count() )
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return QModelIndex();
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return mTreeIndexes[ proxyIndex.internalId() - 1 ].second[ proxyIndex.row() ];
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}
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} else {
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if ( proxyIndex.column() > 0 || proxyIndex.row() >= mIndexes.count() )
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return QModelIndex();
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else {
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return mIndexes[ proxyIndex.row() ];
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}
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}
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}
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void PageGroupProxyModel::setSourceModel( QAbstractItemModel *model )
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{
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if ( sourceModel() ) {
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disconnect( sourceModel(), &QAbstractItemModel::layoutChanged, this, &PageGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::modelReset, this, &PageGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::rowsInserted, this, &PageGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::rowsRemoved, this, &PageGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::dataChanged, this, &PageGroupProxyModel::sourceDataChanged );
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}
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QAbstractProxyModel::setSourceModel( model );
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connect( sourceModel(), &QAbstractItemModel::layoutChanged, this, &PageGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::modelReset, this, &PageGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::rowsInserted, this, &PageGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::rowsRemoved, this, &PageGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::dataChanged, this, &PageGroupProxyModel::sourceDataChanged );
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rebuildIndexes();
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}
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void PageGroupProxyModel::rebuildIndexes()
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{
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beginResetModel();
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if ( mGroupByPage ) {
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mTreeIndexes.clear();
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for ( int row = 0; row < sourceModel()->rowCount(); ++row ) {
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const QModelIndex pageIndex = sourceModel()->index( row, 0 );
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QList<QModelIndex> itemIndexes;
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for ( int subRow = 0; subRow < sourceModel()->rowCount( pageIndex ); ++subRow ) {
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itemIndexes.append( sourceModel()->index( subRow, 0, pageIndex ) );
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}
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mTreeIndexes.append( QPair<QModelIndex, QList<QModelIndex> >( pageIndex, itemIndexes ) );
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}
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} else {
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mIndexes.clear();
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for ( int row = 0; row < sourceModel()->rowCount(); ++row ) {
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const QModelIndex pageIndex = sourceModel()->index( row, 0 );
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for ( int subRow = 0; subRow < sourceModel()->rowCount( pageIndex ); ++subRow ) {
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mIndexes.append( sourceModel()->index( subRow, 0, pageIndex ) );
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}
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}
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}
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endResetModel();
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}
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void PageGroupProxyModel::sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles)
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{
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emit dataChanged(mapFromSource(topLeft), mapFromSource(bottomRight), roles);
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}
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void PageGroupProxyModel::groupByPage( bool value )
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{
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if ( mGroupByPage == value )
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return;
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mGroupByPage = value;
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rebuildIndexes();
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}
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class AuthorGroupItem
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{
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public:
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enum Type
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{
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Page,
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Author,
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Annotation
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};
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AuthorGroupItem( AuthorGroupItem *parent, Type type = Page, const QModelIndex &index = QModelIndex() )
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: mParent( parent ), mType( type ), mIndex( index )
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{
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}
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~AuthorGroupItem()
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{
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qDeleteAll( mChilds );
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}
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void appendChild( AuthorGroupItem *child ) { mChilds.append( child ); }
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AuthorGroupItem* parent() const { return mParent; }
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AuthorGroupItem* child( int row ) const { return mChilds.value( row ); }
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int childCount() const { return mChilds.count(); }
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void dump( int level = 0 )
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{
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QString prefix;
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for ( int i = 0; i < level; ++i ) prefix += QLatin1Char(' ');
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qCDebug(OkularUiDebug, "%s%s", qPrintable( prefix ), ( mType == Page ? "Page" : (mType == Author ? "Author" : "Annotation") ) );
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for ( int i = 0; i < mChilds.count(); ++i )
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mChilds[ i ]->dump( level + 2 );
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}
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const AuthorGroupItem* findIndex( const QModelIndex &index ) const
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{
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if ( index == mIndex )
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return this;
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for ( int i = 0; i < mChilds.count(); ++i ) {
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const AuthorGroupItem *item = mChilds[ i ]->findIndex( index );
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if ( item )
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return item;
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}
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return nullptr;
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}
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int row() const
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{
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return ( mParent ? mParent->mChilds.indexOf( const_cast<AuthorGroupItem*>( this ) ) : 0 );
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}
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Type type() const { return mType; }
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QModelIndex index() const { return mIndex; }
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void setAuthor( const QString &author ) { mAuthor = author; }
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QString author() const { return mAuthor; }
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private:
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AuthorGroupItem *mParent;
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Type mType;
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QModelIndex mIndex;
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QList<AuthorGroupItem*> mChilds;
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QString mAuthor;
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};
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class AuthorGroupProxyModel::Private
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{
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public:
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Private( AuthorGroupProxyModel *parent )
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: mParent( parent ), mRoot( nullptr ),
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mGroupByAuthor( false )
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{
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}
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~Private()
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{
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delete mRoot;
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}
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AuthorGroupProxyModel *mParent;
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AuthorGroupItem *mRoot;
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bool mGroupByAuthor;
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};
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AuthorGroupProxyModel::AuthorGroupProxyModel( QObject *parent )
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: QAbstractProxyModel( parent ),
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d( new Private( this ) )
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{
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}
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AuthorGroupProxyModel::~AuthorGroupProxyModel()
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{
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delete d;
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}
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int AuthorGroupProxyModel::columnCount( const QModelIndex& ) const
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{
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return 1;
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}
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int AuthorGroupProxyModel::rowCount( const QModelIndex &parentIndex ) const
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{
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AuthorGroupItem *item = nullptr;
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if ( !parentIndex.isValid() )
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item = d->mRoot;
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else
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item = static_cast<AuthorGroupItem*>( parentIndex.internalPointer() );
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return item ? item->childCount() : 0;
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}
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QModelIndex AuthorGroupProxyModel::index( int row, int column, const QModelIndex &parentIndex ) const
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{
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if ( !hasIndex( row, column, parentIndex ) )
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return QModelIndex();
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AuthorGroupItem *parentItem = nullptr;
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if ( !parentIndex.isValid() )
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parentItem = d->mRoot;
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else
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parentItem = static_cast<AuthorGroupItem*>( parentIndex.internalPointer() );
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AuthorGroupItem *child = parentItem->child( row );
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if ( child )
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return createIndex( row, column, child );
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else
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return QModelIndex();
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}
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QModelIndex AuthorGroupProxyModel::parent( const QModelIndex &index ) const
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{
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if ( !index.isValid() )
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return QModelIndex();
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AuthorGroupItem *childItem = static_cast<AuthorGroupItem*>( index.internalPointer() );
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AuthorGroupItem *parentItem = childItem->parent();
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if ( parentItem == d->mRoot )
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return QModelIndex();
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else
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return createIndex( parentItem->row(), 0, parentItem );
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}
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QModelIndex AuthorGroupProxyModel::mapFromSource( const QModelIndex &sourceIndex ) const
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{
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if ( !sourceIndex.isValid() )
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return QModelIndex();
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const AuthorGroupItem *item = d->mRoot->findIndex( sourceIndex );
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if ( !item )
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return QModelIndex();
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return createIndex( item->row(), 0, const_cast<AuthorGroupItem*>( item ) );
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}
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QModelIndex AuthorGroupProxyModel::mapToSource( const QModelIndex &proxyIndex ) const
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{
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if ( !proxyIndex.isValid() )
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return QModelIndex();
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AuthorGroupItem *item = static_cast<AuthorGroupItem*>( proxyIndex.internalPointer() );
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return item->index();
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}
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void AuthorGroupProxyModel::setSourceModel( QAbstractItemModel *model )
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{
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if ( sourceModel() ) {
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disconnect( sourceModel(), &QAbstractItemModel::layoutChanged, this, &AuthorGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::modelReset, this, &AuthorGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::rowsInserted, this, &AuthorGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::rowsRemoved, this, &AuthorGroupProxyModel::rebuildIndexes );
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disconnect( sourceModel(), &QAbstractItemModel::dataChanged, this, &AuthorGroupProxyModel::sourceDataChanged );
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}
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QAbstractProxyModel::setSourceModel( model );
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connect( sourceModel(), &QAbstractItemModel::layoutChanged, this, &AuthorGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::modelReset, this, &AuthorGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::rowsInserted, this, &AuthorGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::rowsRemoved, this, &AuthorGroupProxyModel::rebuildIndexes );
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connect( sourceModel(), &QAbstractItemModel::dataChanged, this, &AuthorGroupProxyModel::sourceDataChanged );
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rebuildIndexes();
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}
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static bool isAuthorItem( const QModelIndex &index )
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{
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if ( !index.isValid() ) {
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return false;
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}
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AuthorGroupItem *item = static_cast<AuthorGroupItem*>( index.internalPointer() );
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return (item->type() == AuthorGroupItem::Author);
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}
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QItemSelection AuthorGroupProxyModel::mapSelectionToSource( const QItemSelection &selection ) const
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{
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QModelIndexList proxyIndexes = selection.indexes();
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QItemSelection sourceSelection;
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for ( int i = 0; i < proxyIndexes.size(); ++i ) {
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if ( !isAuthorItem( proxyIndexes.at( i ) ) )
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sourceSelection << QItemSelectionRange( mapToSource( proxyIndexes.at( i ) ) );
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}
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return sourceSelection;
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}
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QItemSelection AuthorGroupProxyModel::mapSelectionFromSource( const QItemSelection &selection ) const
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{
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return QAbstractProxyModel::mapSelectionFromSource( selection );
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}
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QVariant AuthorGroupProxyModel::data( const QModelIndex &proxyIndex, int role ) const
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{
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if ( isAuthorItem( proxyIndex ) ) {
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AuthorGroupItem *item = static_cast<AuthorGroupItem*>( proxyIndex.internalPointer() );
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if ( role == Qt::DisplayRole )
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return item->author();
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else if ( role == Qt::DecorationRole )
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return QIcon::fromTheme( item->author().isEmpty() ? QStringLiteral("user-away") : QStringLiteral("user-identity") );
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else
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return QVariant();
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} else {
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return QAbstractProxyModel::data( proxyIndex, role );
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}
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}
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QMap<int, QVariant> AuthorGroupProxyModel::itemData( const QModelIndex &index ) const
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{
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if ( isAuthorItem( index ) ) {
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return QMap<int, QVariant>();
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} else {
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return QAbstractProxyModel::itemData( index );
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}
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}
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Qt::ItemFlags AuthorGroupProxyModel::flags( const QModelIndex &index ) const
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{
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if ( isAuthorItem( index ) ) {
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return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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} else {
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return QAbstractProxyModel::flags( index );
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}
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}
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void AuthorGroupProxyModel::groupByAuthor( bool value )
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{
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if ( d->mGroupByAuthor == value )
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return;
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d->mGroupByAuthor = value;
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rebuildIndexes();
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}
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void AuthorGroupProxyModel::rebuildIndexes()
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{
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beginResetModel();
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delete d->mRoot;
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d->mRoot = new AuthorGroupItem( nullptr );
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if ( d->mGroupByAuthor ) {
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QMap<QString, AuthorGroupItem*> authorMap;
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for ( int row = 0; row < sourceModel()->rowCount(); ++row ) {
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const QModelIndex idx = sourceModel()->index( row, 0 );
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const QString author = sourceModel()->data( idx, AnnotationModel::AuthorRole ).toString();
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if ( !author.isEmpty() ) {
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// We have the annotations as top-level, so introduce authors as new
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// top-levels and append the annotations
|
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AuthorGroupItem *authorItem = authorMap.value( author, 0 );
|
|
if ( !authorItem ) {
|
|
authorItem = new AuthorGroupItem( d->mRoot, AuthorGroupItem::Author );
|
|
authorItem->setAuthor( author );
|
|
|
|
// Add item to tree
|
|
d->mRoot->appendChild( authorItem );
|
|
|
|
// Insert to lookup list
|
|
authorMap.insert( author, authorItem );
|
|
}
|
|
|
|
AuthorGroupItem *item = new AuthorGroupItem( authorItem, AuthorGroupItem::Annotation, idx );
|
|
authorItem->appendChild( item );
|
|
} else {
|
|
// We have the pages as top-level, so we use them as top-level, append the
|
|
// authors for all annotations of the page, and then the annotations themself
|
|
AuthorGroupItem *pageItem = new AuthorGroupItem( d->mRoot, AuthorGroupItem::Page, idx );
|
|
d->mRoot->appendChild( pageItem );
|
|
|
|
// First collect all authors...
|
|
QMap<QString, AuthorGroupItem*> pageAuthorMap;
|
|
for ( int subRow = 0; subRow < sourceModel()->rowCount( idx ); ++subRow ) {
|
|
const QModelIndex annIdx = sourceModel()->index( subRow, 0, idx );
|
|
const QString author = sourceModel()->data( annIdx, AnnotationModel::AuthorRole ).toString();
|
|
|
|
AuthorGroupItem *authorItem = pageAuthorMap.value( author, 0 );
|
|
if ( !authorItem ) {
|
|
authorItem = new AuthorGroupItem( pageItem, AuthorGroupItem::Author );
|
|
authorItem->setAuthor( author );
|
|
|
|
// Add item to tree
|
|
pageItem->appendChild( authorItem );
|
|
|
|
// Insert to lookup list
|
|
pageAuthorMap.insert( author, authorItem );
|
|
}
|
|
|
|
AuthorGroupItem *item = new AuthorGroupItem( authorItem, AuthorGroupItem::Annotation, annIdx );
|
|
authorItem->appendChild( item );
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for ( int row = 0; row < sourceModel()->rowCount(); ++row ) {
|
|
const QModelIndex idx = sourceModel()->index( row, 0 );
|
|
const QString author = sourceModel()->data( idx, AnnotationModel::AuthorRole ).toString();
|
|
if ( !author.isEmpty() ) {
|
|
// We have the annotations as top-level items
|
|
AuthorGroupItem *item = new AuthorGroupItem( d->mRoot, AuthorGroupItem::Annotation, idx );
|
|
d->mRoot->appendChild( item );
|
|
} else {
|
|
// We have the pages as top-level items
|
|
AuthorGroupItem *pageItem = new AuthorGroupItem( d->mRoot, AuthorGroupItem::Page, idx );
|
|
d->mRoot->appendChild( pageItem );
|
|
|
|
// Append all annotations as second-level
|
|
for ( int subRow = 0; subRow < sourceModel()->rowCount( idx ); ++subRow ) {
|
|
const QModelIndex subIdx = sourceModel()->index( subRow, 0, idx );
|
|
AuthorGroupItem *item = new AuthorGroupItem( pageItem, AuthorGroupItem::Annotation, subIdx );
|
|
pageItem->appendChild( item );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
endResetModel();
|
|
}
|
|
|
|
void AuthorGroupProxyModel::sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles)
|
|
{
|
|
emit dataChanged(mapFromSource(topLeft), mapFromSource(bottomRight), roles);
|
|
}
|
|
|
|
#include "moc_annotationproxymodels.cpp"
|