author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:27:42 +0300 | |
changeset 44 | 22e202702210 |
parent 35 | 060d0b1ab845 |
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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* Zhiqiang Yang <zhiqiang.yang@nokia.com> |
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* |
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* Description: |
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* The find result model source file of file manager |
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*/ |
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|
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#include "fmfindresultmodel.h" |
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#include "fmfindthread.h" |
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#include "fmfileiconprovider.h" |
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#include "fmcommon.h" |
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#include <QDateTime> |
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#include <hbglobal.h> |
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// wait \a circularWaitingTimeForStartFind microsecond to try to start find again |
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// Since find can not be started while last find is not stopped. |
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const int circularWaitingTimeForStartFind = 200; |
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// wait \a firstWaitingTimeForStartFind microsecond to start find when accept find from caller. |
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// Means user can continuously input words for search, so that find will not immediately start after accept each input event. |
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// Search will be started after \a firstWaitingTimeForStartFind time of last user input |
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const int firstWaitingTimeForStartFind = 750; |
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/*! |
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\fn void finished() |
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This signal is emitted when find is finished. |
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*/ |
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/*! |
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\fn void modelCountChanged( int count ) |
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This signal is emitted when data count in model is changed |
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\a count is current data count in model. |
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Currently only start find and get more find result will emit this signal. |
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*/ |
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FmFindResultModel::FmFindResultModel( QObject *parent ) |
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: QAbstractListModel( parent ) |
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{ |
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FM_LOG("FmFindResultModel::FmFindResultModel"); |
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init(); |
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connect( mFindThread, SIGNAL( finished()), this, SLOT(onThreadFinished()) ); |
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connect( mFindThread, SIGNAL(found(QStringList)), this, SLOT(on_findThread_found( QStringList) ), Qt::BlockingQueuedConnection ); |
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connect( &mTimer, SIGNAL(timeout()), this, SLOT(startFind())); |
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} |
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FmFindResultModel::~FmFindResultModel() |
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{ |
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FM_LOG("FmFindResultModel::~FmFindResultModel START"); |
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mFindThread->stop(); |
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if( mFindThread->isRunning() ) { |
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mStopEventLoop.exec(); |
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} |
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delete mIconProvider; |
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FM_LOG("FmFindResultModel::~FmFindResultModel END"); |
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} |
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/*! |
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Send find \a regExp and \a pathList to find queue |
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last un-stopped find will be stopped and start new find in 0 - 2 seconeds. |
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*/ |
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void FmFindResultModel::find( const QRegExp ®Exp, const QStringList &pathList ) |
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{ |
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mFindPath = pathList; |
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mRegExp = regExp; |
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mTimer.stop(); |
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if (mFindThread->isRunning()) { |
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mFindThread->stop(); |
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} |
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mTimer.start( firstWaitingTimeForStartFind ); |
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} |
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/*! |
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Internal start entrance, will be triggered by timer |
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Wait till last find stopped and start new find. |
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*/ |
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void FmFindResultModel::startFind() |
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{ |
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mTimer.stop(); |
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if (mFindThread->isRunning()) { |
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mFindThread->stop(); |
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mTimer.start( circularWaitingTimeForStartFind ); |
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return; |
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} |
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// Find starting. Initialize context. |
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mFindThread->setFindPathList( mFindPath ); |
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mFindThread->setPattern( mRegExp ); |
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removeRows( 0, rowCount() ); |
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emit findStarted(); |
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mFindThread->start(); |
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} |
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107 |
|
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108 |
/*! |
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Return if find is inprogress |
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*/ |
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bool FmFindResultModel::isFinding() const |
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{ |
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return mFindThread->isRunning(); |
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} |
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115 |
|
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116 |
/*! |
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Stop find |
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118 |
*/ |
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void FmFindResultModel::stopFind() |
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120 |
{ |
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mFindThread->stop(); |
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if( mFindThread->isRunning() ) { |
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mStopEventLoop.exec(); |
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} |
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} |
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126 |
|
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/* |
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Find finish slot. |
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*/ |
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void FmFindResultModel::onThreadFinished() |
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131 |
{ |
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FM_LOG("FmFindResultModel::onThreadFinished"); |
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133 |
|
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// close event loop so that blocked destructor and stopFind() can be released. |
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mStopEventLoop.exit(); |
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136 |
|
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emit findFinished(); |
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} |
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139 |
|
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140 |
/*! |
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Returns the number of rows in the model. This value corresponds to the |
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number of items in the model's internal string list. |
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143 |
|
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The optional \a parent argument is in most models used to specify |
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the parent of the rows to be counted. Because this is a list if a |
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valid parent is specified, the result will always be 0. |
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|
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\sa insertRows(), removeRows(), QAbstractItemModel::rowCount() |
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*/ |
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int FmFindResultModel::rowCount( const QModelIndex &parent ) const |
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{ |
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if ( !parent.isValid() ) |
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return mFindResult.count(); |
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|
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return 0; |
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} |
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157 |
|
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/*! |
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Get model column count |
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*/ |
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int FmFindResultModel::columnCount( const QModelIndex &parent ) const |
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{ |
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if ( !parent.isValid() ) |
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return 4; |
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|
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return 0; |
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} |
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168 |
|
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/*! |
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Get model data |
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*/ |
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QVariant FmFindResultModel::data( const QModelIndex &index, int role ) const |
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{ |
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if (!indexValid( index )) |
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return QVariant(); |
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176 |
|
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if (role == Qt::DisplayRole) { |
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switch (index.column()) { |
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case 0: return fileInfo( index ).fileName(); |
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case 1: return fileInfo( index ).size(); |
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case 2: return mIconProvider->type( fileInfo( index ) ); |
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case 3: return fileInfo( index ).lastModified().toString( Qt::LocalDate ); |
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183 |
default: |
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qWarning( "FmFindResultData: invalid display value column %d", index.column() ); |
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return QVariant(); |
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} |
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} |
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188 |
|
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if (index.column() == 0) { |
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if (role == FileIconRole) { |
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return mIconProvider->icon( fileInfo( index ) ); |
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} |
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} |
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194 |
|
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if (index.column() == 1 && role == Qt::TextAlignmentRole) { |
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return Qt::AlignRight; |
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} |
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|
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return QVariant(); |
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} |
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201 |
|
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/*! |
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Get filePath by \a index |
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*/ |
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QString FmFindResultModel::filePath ( const QModelIndex & index ) const |
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{ |
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return fileInfo( index ).filePath(); |
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} |
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|
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/*! |
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Get header data by column number \a section |
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*/ |
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QVariant FmFindResultModel::headerData( int section, Qt::Orientation orientation, int role ) const |
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{ |
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if (orientation == Qt::Horizontal) { |
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if (role != Qt::DisplayRole) |
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return QVariant(); |
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|
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switch (section) { |
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case 0: return hbTrId("Name"); |
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case 1: return hbTrId("Size"); |
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case 2: return hbTrId("Type"); |
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case 3: return hbTrId("Date Modified"); |
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default: return QVariant(); |
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} |
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} |
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|
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return QAbstractItemModel::headerData( section, orientation, role ); |
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} |
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|
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/*! |
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Inserts \a dataList into the model, beginning at the given \a row. |
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|
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The \a parent index of the rows is optional and is only used for |
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consistency with QAbstractItemModel. By default, a null index is |
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specified, indicating that the rows are inserted in the top level of |
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the model. |
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|
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\sa QAbstractItemModel::insertRows() |
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*/ |
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|
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bool FmFindResultModel::insertRows( int row, const QStringList &dataList, const QModelIndex &parent ) |
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{ |
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if ( row < 0 || dataList.count() < 1 || row > rowCount(parent) ) |
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return false; |
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|
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beginInsertRows( QModelIndex(), row, row + dataList.count() - 1 ); |
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mFindResult.append( dataList ); |
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endInsertRows(); |
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|
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// emit modelCountChanged could let FmFindWidget switch style between EmptyTipWidget and ResultListview |
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// FmFindWidget will show an empty tip widget such as "No found files or folderss" if set 0 as parameter |
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emit modelCountChanged( rowCount() ); |
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|
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return true; |
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} |
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|
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/*! |
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Removes \a count rows from the model, beginning at the given \a row. |
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|
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The \a parent index of the rows is optional and is only used for |
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consistency with QAbstractItemModel. By default, a null index is |
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specified, indicating that the rows are removed in the top level of |
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the model. |
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|
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\sa QAbstractItemModel::removeRows() |
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*/ |
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bool FmFindResultModel::removeRows( int row, int count, const QModelIndex &parent ) |
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{ |
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if (row < 0 || count < 1 || (row + count) > rowCount(parent) ) |
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return false; |
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|
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beginRemoveRows( QModelIndex(), row, row + count - 1 ); |
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|
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for (int i = 0; i < count; ++i) |
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mFindResult.removeAt(row); |
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|
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endRemoveRows(); |
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|
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// emit modelCountChanged could let FmFindWidget switch style between EmptyTipWidget and ResultListview |
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// FmFindWidget will show an empty tip widget such as "No found files or folderss" if set 0 as parameter |
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emit modelCountChanged( rowCount() ); |
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|
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return true; |
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} |
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|
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/*! |
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Get QFileInfo by \a index |
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*/ |
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QFileInfo FmFindResultModel::fileInfo( const QModelIndex &index ) const |
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{ |
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if (index.row() >= 0 && index.row() < mFindResult.size()) |
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return QFileInfo( mFindResult[index.row()] ); |
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else |
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return QFileInfo(); |
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} |
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|
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/* |
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Receive \a dataList as some found result |
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Then insert dataList to model |
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*/ |
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void FmFindResultModel::on_findThread_found( const QStringList &dataList ) |
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{ |
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if( dataList.isEmpty() ) { |
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return; |
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} |
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insertRows( rowCount(), dataList ); |
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} |
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|
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/* |
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Get if \a index is valid |
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*/ |
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bool FmFindResultModel::indexValid( const QModelIndex &index ) const |
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{ |
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if( ( index.row() < 0 ) || ( index.row() >= rowCount() ) ) { |
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return false; |
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} else if( ( index.column() < 0 ) || ( index.column() >= columnCount() ) ) { |
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return false; |
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} else { |
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return true; |
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} |
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} |
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|
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/* |
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Init model |
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*/ |
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void FmFindResultModel::init() |
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{ |
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mFindThread = new FmFindThread( this ); |
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mFindThread->setObjectName( "findThread" ); |
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mIconProvider = new FmFileIconProvider(); |
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} |
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|
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/* |
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Sort by name |
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*/ |
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bool FmFindResultModel::caseNameLessThan(const QPair<QString,int> &s1, |
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const QPair<QString,int> &s2) |
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{ |
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QFileInfo info1( s1.first ); |
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QFileInfo info2( s2.first ); |
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342 |
|
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return info1.fileName() < info2.fileName(); |
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} |
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|
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/* |
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347 |
Sort by time |
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*/ |
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bool FmFindResultModel::caseTimeLessThan(const QPair<QString,int> &s1, |
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const QPair<QString,int> &s2) |
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351 |
{ |
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QFileInfo info1( s1.first ); |
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QFileInfo info2( s2.first ); |
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354 |
|
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return info1.lastModified() < info2.lastModified(); |
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} |
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357 |
|
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/* |
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Sort by size |
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*/ |
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bool FmFindResultModel::caseSizeLessThan(const QPair<QString,int> &s1, |
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const QPair<QString,int> &s2) |
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{ |
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QFileInfo info1( s1.first ); |
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QFileInfo info2( s2.first ); |
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|
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return info1.size() < info2.size(); |
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} |
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|
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/* |
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371 |
Sort by type |
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*/ |
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bool FmFindResultModel::caseTypeLessThan(const QPair<QString,int> &s1, |
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const QPair<QString,int> &s2) |
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{ |
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QFileInfo info1( s1.first ); |
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QFileInfo info2( s2.first ); |
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378 |
|
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if( info1.isDir() != info2.isDir() ){ |
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return info1.isDir(); |
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} |
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else{ |
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return info1.suffix().toLower() < info2.suffix().toLower(); |
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} |
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} |
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386 |
|
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387 |
/*! |
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\reimp |
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Sort by \a column, which is aligned to \a SortFlag |
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\sa SortFlag |
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*/ |
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void FmFindResultModel::sort ( int column, Qt::SortOrder order ) |
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393 |
{ |
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// Sort algorithm comes from |
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// void QListModel::sort(int column, Qt::SortOrder order) |
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396 |
|
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Q_UNUSED( order ); |
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emit layoutAboutToBeChanged(); |
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399 |
|
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// store value and row pair. |
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QVector < QPair<QString,int> > sorting(mFindResult.count()); |
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for (int i = 0; i < mFindResult.count(); ++i) { |
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QString item = mFindResult.at(i); |
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sorting[i].first = item; |
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sorting[i].second = i; |
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} |
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407 |
|
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// sort in "sorting" |
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switch( ( SortFlag )column ) |
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{ |
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case Name: |
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qSort( sorting.begin(), sorting.end(), caseNameLessThan ); |
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break; |
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case Time: |
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qSort( sorting.begin(), sorting.end(), caseTimeLessThan ); |
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break; |
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case Size: |
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qSort( sorting.begin(), sorting.end(), caseSizeLessThan ); |
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break; |
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case Type: |
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qSort( sorting.begin(), sorting.end(), caseTypeLessThan ); |
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break; |
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} |
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|
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// create from Indexes and toIndexes, then set sorted data back to mFindResult |
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QModelIndexList fromIndexes; |
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QModelIndexList toIndexes; |
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for (int r = 0; r < sorting.count(); ++r) { |
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QString item = sorting.at(r).first; |
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toIndexes.append(createIndex(r, 0)); |
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fromIndexes.append(createIndex(sorting.at(r).second, 0)); |
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mFindResult[r] = sorting.at(r).first; |
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} |
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changePersistentIndexList(fromIndexes, toIndexes); |
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|
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emit layoutChanged(); |
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} |