author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 00:07:25 +0300 | |
changeset 96 | 458d8c8d9580 |
child 98 | e6f74eb7f69f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 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: Proxy model for search and highlight items view. |
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* |
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*/ |
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|
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#include <QObject> |
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#include <hbcolorscheme.h> |
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#include <caitemmodel.h> |
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#include "hssearchfilterproxymodel.h" |
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/*! |
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\class HsSearchFilterProxyModel |
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\ingroup group_hsmenustateplugin |
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\brief Proxy Model for highlight search string. |
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Highlight search string in model item title. |
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\lib ?library |
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\see QSortFilterProxyModel |
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*/ |
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|
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/*! |
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Constructor. |
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\param parent parent for object. |
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*/ |
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HsSearchFilterProxyModel::HsSearchFilterProxyModel(QObject *parent) : |
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QSortFilterProxyModel(parent), |
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mInSettingFilterString(false) |
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{ |
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} |
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|
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/* |
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Destructor. |
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*/ |
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HsSearchFilterProxyModel::~HsSearchFilterProxyModel() |
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{ |
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} |
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|
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/* |
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The data() method is overridden to have a place where the highlighting |
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is added to the item data. In this implementation HTML-tags for |
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background color are added to the beginning and end of the match |
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in the data method using HbColorScheme. |
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\param index source parent index. |
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\param role item role. |
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*/ |
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QVariant HsSearchFilterProxyModel::data(const QModelIndex &index, |
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int role) const |
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{ |
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QColor highlight = HbColorScheme::color("qtc_lineedit_marker_normal"); |
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QColor color = HbColorScheme::color("qtc_lineedit_selected"); |
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|
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if (role == Qt::DisplayRole && !mFilterCriteria.isEmpty()) { |
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QStringList textList = |
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QSortFilterProxyModel::data(index, role).toStringList(); |
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if(!textList[0].isEmpty()) |
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{ |
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QString start = QString( |
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TAG_START).arg( highlight.name().toUpper() ).arg(color.name().toUpper()); |
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int pos = textList[0].indexOf(mFilterCriteria, 0,Qt::CaseInsensitive); |
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textList[0].insert(pos, start); |
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textList[0].insert(pos + start.length() + mFilterCriteria.length(), TAG_END); |
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} |
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return QVariant(textList); |
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} |
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return QSortFilterProxyModel::data(index, role); |
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} |
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/* |
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SetFilterString is the way to set the filtering criteria that is used |
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in highlight filtering. |
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QSortFilterProxyModel does not allow overriding its own filtering |
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criteria setting methods, so a separate method is added in the |
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HighlightFilterProxyModel. |
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This method stores the current filtering criteria and it can be |
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used in the data() method in highlighting the matches. |
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The method also calls the QSortFilterProxyModel method for setting |
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the filterCriteria. This triggers the base class to do the actual |
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filtering. |
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\param index source parent index. |
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\param role item role. |
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*/ |
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void HsSearchFilterProxyModel::setFilterString(const QString &filterCriteria) |
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{ |
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mInSettingFilterString = true; |
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mFilterCriteria = filterCriteria; |
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setFilterRegExp( |
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QRegExp("(^|\\b)" + filterCriteria, Qt::CaseInsensitive)); |
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mInSettingFilterString = false; |
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} |
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|
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QString HsSearchFilterProxyModel::filterString() const |
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{ |
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return mFilterCriteria; |
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} |
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|
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/* |
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Reimplementated from QSortFilterProxyModel. |
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The filterAcceptsRow method is overridden to send a dataChanged signal |
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to the list view item |
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\param source_row row in source model. |
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\param source_parent source parent index. |
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*/ |
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bool HsSearchFilterProxyModel::filterAcceptsRow (int source_row, |
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const QModelIndex &source_parent) const |
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{ |
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bool retVal = QSortFilterProxyModel::filterAcceptsRow(source_row, |
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source_parent); |
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if (mInSettingFilterString && retVal) { |
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QModelIndex mi = mapFromSource(sourceModel()->index(source_row, 0, |
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source_parent)); |
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emit const_cast<HsSearchFilterProxyModel*>(this)->dataChanged(mi, mi); |
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} |
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return retVal; |
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} |
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|
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