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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <btuimodelsortfilter.h>
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#include <btdevicemodel.h>
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/*!
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Constructor.
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*/
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BtuiModelSortFilter::BtuiModelSortFilter( QObject *parent )
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: QSortFilterProxyModel( parent )
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{
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setDynamicSortFilter( true );
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}
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/*!
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Destructor.
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*/
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BtuiModelSortFilter::~BtuiModelSortFilter()
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{
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}
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/*!
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Replace current filter values for filtering on major device class with
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the specified. This Model will not reset itself for performance reason,
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the caller shall call reset after all filters have been set.
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*/
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void BtuiModelSortFilter::setDeviceMajorFilter( int filter, FilterMode mode )
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{
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mFilters.clear();
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addDeviceMajorFilter( filter, mode );
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}
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/*!
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Add the specified filter value for filtering on major device class
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if the specified filter doesn't exist when this function is called.
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This Model will not reset itself for performance reason,
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the caller shall call reset after all filters have been set.
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*/
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void BtuiModelSortFilter::addDeviceMajorFilter( int filter, FilterMode mode )
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{
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FilterItem f(filter, mode);
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if ( mFilters.indexOf(f) == -1 ) {
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mFilters.append( f );
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}
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}
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/*!
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Clear the specified filter value for filtering on major device class from this model.
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This Model will not reset itself for performance reason,
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the caller shall call reset after all filters have been set.
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*/
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void BtuiModelSortFilter::clearDeviceMajorFilter( int filter, FilterMode mode )
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{
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FilterItem f(filter, mode);
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int i = mFilters.indexOf(f);
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if ( i > -1 ) {
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mFilters.removeAt( i );
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}
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}
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/*!
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clear all filters for filtering on major device class.
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This Model will not reset itself for performance reason,
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the caller shall call reset after all filters have been set.
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*/
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void BtuiModelSortFilter::clearDeviceMajorFilters()
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{
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// model reset is needed if there are filters :
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bool shReset = ( mFilters.size() > 0 );
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if ( shReset ) {
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reset();
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}
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mFilters.clear();
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}
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/*!
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return true if the specified filter exists; return false otherwise.
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*/
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bool BtuiModelSortFilter::hasFilter( int filter, FilterMode mode )
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{
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FilterItem f(filter, mode);
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return mFilters.indexOf(f) > -1 ;
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}
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/*!
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\reimp
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*/
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bool BtuiModelSortFilter::filterAcceptsRow(
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int sourceRow, const QModelIndex &sourceParent) const
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{
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bool accepted (false );
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// Get the device name from the model
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QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
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// the row shall pass all filters:
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for (int i = 0; i < mFilters.size(); i++ ) {
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if ( mFilters.at(i).mFilter == BtDeviceModel::NullProperty ) {
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accepted = true; // There is no filter, we accept all
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}
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else {
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int majorProperty =
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sourceModel()->data(index, BtDeviceModel::MajorPropertyRole).toInt();
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switch (mFilters.at(i).mMode) {
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case ExactMatch:
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// Accept if the match is spot-on
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accepted = majorProperty == mFilters.at(i).mFilter ;
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break;
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case AtLeastMatch:
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// accept if it matches all specified filters:
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accepted = ( mFilters.at(i).mFilter ==
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( majorProperty & mFilters.at(i).mFilter ) );
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break;
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case RoughMatch:
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// Accept if it matches one of specified filters:
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accepted = (majorProperty & mFilters.at(i).mFilter) != 0;
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break;
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case Exclusive:
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// Accept if this is not one that we want to filter out
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accepted = (majorProperty & mFilters.at(i).mFilter) == 0;
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break;
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default:
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accepted = false;
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}
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}
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}
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if (accepted) {
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// emit signal to inform a row has been accepted by fitler,
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// currently this is only needed by search view
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emit const_cast<BtuiModelSortFilter*>(this)->deviceAcceptedByFilter( sourceRow );
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}
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return accepted;
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}
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/*!
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\reimp
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*/
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bool BtuiModelSortFilter::lessThan(
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const QModelIndex &left, const QModelIndex &right) const
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{
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Q_UNUSED( left );
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Q_UNUSED( right );
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if (sortRole() == BtDeviceModel::NameAliasRole ||
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sortRole() == BtDeviceModel::LastUsedTimeRole ||
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sortRole() == BtDeviceModel::RssiRole) {
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// base class provides sorting for these types already:
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return QSortFilterProxyModel::lessThan(left, right);
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}
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// no custom sort supported yet.
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return true;
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}
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