/****************************************************************
 *  RShare is distributed under the following license:
 *
 *  Copyright (C) 2006, crypton
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
 ****************************************************************/

#include <QMessageBox>
#include <QDir>
#include <QTimer>
#include <QShortcut>

#include "SearchDialog.h"
#include "RetroShareLink.h"
#include "msgs/MessageComposer.h"
#include "gui/RSHumanReadableDelegate.h"
#include "retroshare-gui/RsAutoUpdatePage.h"
#include "gui/common/RsCollectionFile.h"
#include "gui/common/FilesDefs.h"
#include "settings/rsharesettings.h"
#include "advsearch/advancedsearchdialog.h"

#include <retroshare/rsfiles.h>
#include <retroshare/rsturtle.h>
#include <retroshare/rsexpr.h>

/* Images for context menu icons */
#define IMAGE_START  		    ":/images/download.png"
#define IMAGE_REMOVE  		  ":/images/delete.png"
#define IMAGE_REMOVEALL   	":/images/deleteall.png"
#define IMAGE_DIRECTORY			":/images/folder16.png"

/* Key for UI Preferences */
#define UI_PREF_ADVANCED_SEARCH  "UIOptions/AdvancedSearch"

/* indicies for search results item columns SR_ = Search Result */
/* indicies for search results item columns SR_ = Search Result */
#define SR_NAME_COL         0
#define SR_SIZE_COL         1
#define SR_ID_COL           2
#define SR_TYPE_COL         3
#define SR_AGE_COL          4
#define SR_HASH_COL         5
#define SR_SEARCH_ID_COL    6
#define SR_UID_COL          7
#define SR_DATA_COL         SR_NAME_COL

#define SR_ROLE_LOCAL       Qt::UserRole

/* indicies for search summary item columns SS_ = Search Summary */
#define SS_TEXT_COL         0
#define SS_COUNT_COL        1
#define SS_SEARCH_ID_COL    2
#define SS_DATA_COL         SS_TEXT_COL

#define ROLE_ADVANCED       Qt::UserRole

#define IMAGE_COPYLINK             ":/images/copyrslink.png"

/* static members */
/* These indices MUST be identical to their equivalent indices in the combobox */
const int SearchDialog::FILETYPE_IDX_ANY = 0;
const int SearchDialog::FILETYPE_IDX_ARCHIVE = 1;
const int SearchDialog::FILETYPE_IDX_AUDIO = 2;
const int SearchDialog::FILETYPE_IDX_CDIMAGE = 3;
const int SearchDialog::FILETYPE_IDX_DOCUMENT = 4;
const int SearchDialog::FILETYPE_IDX_PICTURE = 5;
const int SearchDialog::FILETYPE_IDX_PROGRAM = 6;
const int SearchDialog::FILETYPE_IDX_VIDEO = 7;
const int SearchDialog::FILETYPE_IDX_DIRECTORY = 8;
QMap<int, QString> * SearchDialog::FileTypeExtensionMap = new QMap<int, QString>();
bool SearchDialog::initialised = false;

static int FilterColumnFromComboBox(int nIndex)
{
    switch (nIndex) {
    case 0:
        return SR_NAME_COL;
    case 1:
        return SR_SIZE_COL;
    }

    return SR_NAME_COL;
}

/** Constructor */
SearchDialog::SearchDialog(QWidget *parent)
: MainPage(parent),
	advSearchDialog(NULL),
	nextSearchId(1)
{
    /* Invoke the Qt Designer generated object setup routine */
    ui.setupUi(this);

    m_bProcessSettings = false;

	 _queueIsAlreadyTakenCareOf = false ;
    ui.lineEdit->setFocus();
    ui.lineEdit->setToolTip(tr("Enter a keyword here (at least 3 char long)"));

    /* initialise the filetypes mapping */
    if (!SearchDialog::initialised)
    {
	initialiseFileTypeMappings();
    }

    connect(ui.toggleAdvancedSearchBtn, SIGNAL(clicked()), this, SLOT(showAdvSearchDialog()));

    connect( ui.searchResultWidget, SIGNAL( customContextMenuRequested( QPoint ) ), this, SLOT( searchtableWidgetCostumPopupMenu( QPoint ) ) );

    connect( ui.searchSummaryWidget, SIGNAL( customContextMenuRequested( QPoint ) ), this, SLOT( searchtableWidget2CostumPopupMenu( QPoint ) ) );

    connect( ui.lineEdit, SIGNAL( returnPressed ( void ) ), this, SLOT( searchKeywords( void ) ) );
    connect( ui.lineEdit, SIGNAL( textChanged ( const QString& ) ), this, SLOT( checkText( const QString& ) ) );
    connect( ui.pushButtonsearch, SIGNAL( released ( void ) ), this, SLOT( searchKeywords( void ) ) );
    connect( ui.pushButtonDownload, SIGNAL( released ( void ) ), this, SLOT( download( void ) ) );
    connect( ui.cloaseallsearchresultsButton, SIGNAL(clicked()), this, SLOT(searchRemoveAll()));
    connect( ui.resetButton, SIGNAL(clicked()), this, SLOT(clearKeyword()));
    connect( ui.lineEdit, SIGNAL( textChanged(const QString &)), this, SLOT(togglereset()));

    connect( ui.searchResultWidget, SIGNAL( itemDoubleClicked ( QTreeWidgetItem *, int)), this, SLOT(download()));

    connect ( ui.searchSummaryWidget, SIGNAL( currentItemChanged ( QTreeWidgetItem *, QTreeWidgetItem * ) ),
                    this, SLOT( selectSearchResults( void ) ) );

    connect(ui.FileTypeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(selectSearchResults(int)));
    
	connect( ui.filterPatternLineEdit, SIGNAL(textChanged(const QString &)), this, SLOT(filterRegExpChanged()));
    connect( ui.filterColumnComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(filterColumnChanged()));
	connect( ui.clearButton, SIGNAL(clicked()), this, SLOT(clearFilter()));

    /* hide the Tree +/- */
    ui.searchResultWidget -> setRootIsDecorated( true );
    ui.searchResultWidget -> setColumnHidden( SR_UID_COL,true );
    ui.searchSummaryWidget -> setRootIsDecorated( false );

	 // We set some delegates to handle the display of size and date.
	 // To allow a proper sorting, be careful to pad at right with spaces. This
	 // is achieved by using QString("%1").arg(number,15,10).
	 //
	 ui.searchResultWidget->setItemDelegateForColumn(SR_SIZE_COL,new RSHumanReadableSizeDelegate()) ;
	 ui.searchResultWidget->setItemDelegateForColumn(SR_AGE_COL,new RSHumanReadableAgeDelegate()) ;

    /* make it extended selection */
    ui.searchResultWidget -> setSelectionMode(QAbstractItemView::ExtendedSelection);

    /* Set header resize modes and initial section sizes */
    ui.searchSummaryWidget->setColumnCount(3);
    ui.searchSummaryWidget->setColumnHidden ( 2, true);

    QHeaderView * _smheader = ui.searchSummaryWidget->header () ;
    _smheader->setResizeMode (0, QHeaderView::Interactive);
    _smheader->setResizeMode (1, QHeaderView::Interactive);

    _smheader->resizeSection ( 0, 160 );
    _smheader->resizeSection ( 1, 50 );

    ui.searchResultWidget->setColumnCount(6);
    _smheader = ui.searchResultWidget->header () ;
    _smheader->setResizeMode (0, QHeaderView::Interactive);
    _smheader->setResizeMode (1, QHeaderView::Interactive);
    _smheader->setResizeMode (2, QHeaderView::Interactive);

    _smheader->resizeSection ( 0, 240 );
    _smheader->resizeSection ( 1, 75 );
    _smheader->resizeSection ( 2, 75 );
    _smheader->resizeSection ( 3, 75 );
    _smheader->resizeSection ( 4, 90 );
    _smheader->resizeSection ( 5, 240 );

    // set header text aligment
    QTreeWidgetItem * headerItem = ui.searchResultWidget->headerItem();
    headerItem->setTextAlignment(1, Qt::AlignRight   | Qt::AlignRight);
    headerItem->setTextAlignment(2, Qt::AlignRight | Qt::AlignRight);

    ui.searchResultWidget->sortItems(SR_NAME_COL, Qt::AscendingOrder);

    ui.resetButton->hide();
	ui.clearButton->hide();

    /* Set initial size the splitter */
    QList<int> sizes;
    sizes << 250 << width(); // Qt calculates the right sizes
    ui.splitter->setSizes(sizes);

    // load settings
    processSettings(true);
  
  	ui._ownFiles_CB->setMinimumWidth(20);
  	ui._friendListsearch_SB->setMinimumWidth(20);
  	ui._anonF2Fsearch_CB->setMinimumWidth(20);
  	ui.label->setMinimumWidth(20);

    // workaround for Qt bug, should be solved in next Qt release 4.7.0
    // http://bugreports.qt.nokia.com/browse/QTBUG-8270
    QShortcut *Shortcut = new QShortcut(QKeySequence (Qt::Key_Delete), ui.searchSummaryWidget, 0, 0, Qt::WidgetShortcut);
    connect(Shortcut, SIGNAL(activated()), this, SLOT(searchRemove()));

/* Hide platform specific features */
#ifdef Q_WS_WIN

#endif
}

SearchDialog::~SearchDialog()
{
    // save settings
    processSettings(false);
}

void SearchDialog::processSettings(bool bLoad)
{
    m_bProcessSettings = true;

    QHeaderView *pHeader = ui.searchSummaryWidget->header () ;

    Settings->beginGroup(QString("SearchDialog"));

    if (bLoad) {
        // load settings

        // state of SearchSummary tree
        pHeader->restoreState(Settings->value("SearchSummaryTree").toByteArray());

        // state of splitter
        ui.splitter->restoreState(Settings->value("Splitter").toByteArray());
    } else {
        // save settings

        // state of SearchSummary tree
        Settings->setValue("SearchSummaryTree", pHeader->saveState());

        // state of splitter
        Settings->setValue("Splitter", ui.splitter->saveState());
    }

    Settings->endGroup();
    m_bProcessSettings = false;
}


void SearchDialog::checkText(const QString& txt)
{
	if(txt.length() < 3)
	{
		std::cout << "setting palette 1" << std::endl ;
		ui.searchlineframe->setStyleSheet("QFrame#searchlineframe{ border: 2px solid #079E00; background-color: #DBDBDB; }");
	}
	else
	{
		ui.searchlineframe->setStyleSheet("QFrame#searchlineframe{ border: 2px solid #079E00; background-color: white; }");
		std::cout << "setting palette 2" << std::endl ;
	}
}

void SearchDialog::initialiseFileTypeMappings()
{
	/* edit these strings to change the range of extensions recognised by the search */
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_ANY, "");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_AUDIO,
		"aac aif flac iff m3u m4a mid midi mp3 mpa ogg ra ram wav wma");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_ARCHIVE,
		"7z bz2 gz pkg rar sea sit sitx tar zip");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_CDIMAGE,
		"iso nrg mdf");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_DOCUMENT,
		"doc odt ott rtf pdf ps txt log msg wpd wps" );
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_PICTURE,
		"3dm 3dmf ai bmp drw dxf eps gif ico indd jpe jpeg jpg mng pcx pcc pct pgm "
		"pix png psd psp qxd qxprgb sgi svg tga tif tiff xbm xcf");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_PROGRAM,
		"app bat cgi com bin exe js pif py pl sh vb ws ");
	SearchDialog::FileTypeExtensionMap->insert(FILETYPE_IDX_VIDEO,
		"3gp asf asx avi mov mp4 mkv flv mpeg mpg qt rm swf vob wmv");
	SearchDialog::initialised = true;
}

void SearchDialog::searchtableWidgetCostumPopupMenu( QPoint /*point*/ )
{
    // block the popup if no results available
    if ((ui.searchResultWidget->selectedItems()).size() == 0) return;

    QMenu contextMnu(this);

    contextMnu.addAction(QIcon(IMAGE_START), tr("Download"), this, SLOT(download()));
    contextMnu.addSeparator();
    contextMnu.addAction(QIcon(IMAGE_COPYLINK), tr("Copy RetroShare Link"), this, SLOT(copyResultLink()));
    contextMnu.addAction(QIcon(IMAGE_COPYLINK), tr("Send RetroShare Link"), this, SLOT(sendLinkTo()));

//    contextMnu.addAction(tr("Broadcast on Channel"), this, SLOT(broadcastonchannel()));
//    contextMnu.addAction(tr("Recommend to Friends"), this, SLOT(recommendtofriends()));

    contextMnu.exec(QCursor::pos());
}

void SearchDialog::getSourceFriendsForHash(const std::string& hash,std::list<std::string>& srcIds)
{
	std::cerr << "Searching sources for file " << hash << std::endl ;
	srcIds.clear();

	FileInfo finfo ;
	rsFiles->FileDetails(hash, RS_FILE_HINTS_REMOTE,finfo) ;

	for(std::list<TransferInfo>::const_iterator it(finfo.peers.begin());it!=finfo.peers.end();++it)
	{
		std::cerr << "  adding peerid " << (*it).peerId << std::endl ;
		srcIds.push_back((*it).peerId) ;
	}
}

void SearchDialog::download()
{
    /* should also be able to handle multi-selection */
    QList<QTreeWidgetItem*> itemsForDownload = ui.searchResultWidget->selectedItems();
    int numdls = itemsForDownload.size();
    QTreeWidgetItem * item;
    bool attemptDownloadLocal = false;

    for (int i = 0; i < numdls; ++i) 
	 {
		 item = itemsForDownload.at(i);
		 // call the download
		 //
		 if (item->text(SR_HASH_COL).isEmpty()) // we have a folder
			 downloadDirectory(item, tr(""));
		 else 
		 {
			 std::cerr << "SearchDialog::download() Calling File Request";
			 std::cerr << std::endl;
			 std::list<std::string> srcIds;

			 std::string hash = item->text(SR_HASH_COL).toStdString();
			 getSourceFriendsForHash(hash,srcIds) ;

			 if(!rsFiles -> FileRequest((item->text(SR_NAME_COL)).toUtf8().constData(), hash, (item->text(SR_SIZE_COL)).toULongLong(), "", RS_FILE_HINTS_NETWORK_WIDE, srcIds))
				 attemptDownloadLocal = true ;
			 else
			 {
				 std::cout << "isuing file request from search dialog: -" << (item->text(SR_NAME_COL)).toStdString() << "-" << hash << "-" << (item->text(SR_SIZE_COL)).toULongLong() << "-ids=" ;
				 for(std::list<std::string>::const_iterator it(srcIds.begin());it!=srcIds.end();++it)
					 std::cout << *it << "-" << std::endl ;
			 }
		 }
	 }
    if (attemptDownloadLocal)
    	QMessageBox::information(this, tr("Download Notice"), tr("Skipping Local Files"));
}

void SearchDialog::downloadDirectory(const QTreeWidgetItem *item, const QString &base)
{
	if (!item->childCount()) 
	{
		std::list<std::string> srcIds;

		QString path = QString::fromStdString(rsFiles->getDownloadDirectory())
                                                + "/" + base + "/";
		QString cleanPath = QDir::cleanPath(path);

		std::string hash = item->text(SR_HASH_COL).toStdString();

		getSourceFriendsForHash(hash,srcIds) ;

		rsFiles->FileRequest(item->text(SR_NAME_COL).toUtf8().constData(),
				hash,
				item->text(SR_SIZE_COL).toULongLong(),
				cleanPath.toUtf8().constData(),RS_FILE_HINTS_NETWORK_WIDE, srcIds);

		std::cout << "SearchDialog::downloadDirectory(): "\
				"issuing file request from search dialog: -"
			<< (item->text(SR_NAME_COL)).toStdString()
			<< "-" << hash
			<< "-" << (item->text(SR_SIZE_COL)).toULongLong()
			<< "-ids=" ;
		for(std::list<std::string>::const_iterator it(srcIds.begin());
				it!=srcIds.end();++it)
			std::cout << *it << "-" << std::endl ;
	} else {
		QDir dwlDir(QString::fromStdString(rsFiles->getDownloadDirectory()));
		QString path;
		if (base == tr(""))
			path = item->text(SR_NAME_COL);
		else
                        path = base + "/" + item->text(SR_NAME_COL);
		QString cleanPath = QDir::cleanPath(path);

		// create this folder in download path
		if (!dwlDir.mkpath(cleanPath)) {
			std::cerr << "SearchDialog::downloadDirectory() - can't create "
				<< cleanPath.toStdString() << " directory" << std::endl;
			return;
		}

		// recursive call for every child - file or folder
		for (int i = 0, cnt = item->childCount(); i < cnt; i++) {
			QTreeWidgetItem *child = item->child(i);
			downloadDirectory(child, path);
		}
	}
}

void SearchDialog::broadcastonchannel()
{

    QMessageBox::warning(0, tr("Sorry"), tr("This function is not yet implemented."));
}


void SearchDialog::recommendtofriends()
{
   QMessageBox::warning(0, tr("Sorry"), tr("This function is not yet implemented."));

}


/** context menu searchTablewidget2 **/
void SearchDialog::searchtableWidget2CostumPopupMenu( QPoint /*point*/ )
{
    // block the popup if no results available
    if ((ui.searchSummaryWidget->selectedItems()).size() == 0) return;

    QMenu contextMnu(this);

    QTreeWidgetItem* ci = ui.searchSummaryWidget->currentItem();
    QAction* action = contextMnu.addAction(tr("Search again"), this, SLOT(searchAgain()));
    if (!ci || ci->data(SS_DATA_COL, ROLE_ADVANCED).toBool()) {
        action->setDisabled(true);
    }
    contextMnu.addAction(QIcon(IMAGE_REMOVE), tr("Remove"), this, SLOT(searchRemove()));
    contextMnu.addAction(QIcon(IMAGE_REMOVE), tr("Remove All"), this, SLOT(searchRemoveAll()));
    contextMnu.addSeparator();
    action = contextMnu.addAction(QIcon(IMAGE_COPYLINK), tr("Copy RetroShare Link"), this, SLOT(copySearchLink()));
    if (!ci || ci->data(SS_DATA_COL, ROLE_ADVANCED).toBool()) {
        action->setDisabled(true);
    }

    contextMnu.exec(QCursor::pos());
}

/** remove selected search result **/
void SearchDialog::searchRemove()
{
	/* get the current search id from the summary window */
        QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
	if (!ci)
		return;

        /* get the searchId text */
        QString searchId = ci->text(SS_SEARCH_ID_COL);

        std::cerr << "SearchDialog::searchRemove(): searchId: " << searchId.toStdString();
        std::cerr << std::endl;

        /* show only matching searchIds in main window */
        int items = ui.searchResultWidget->topLevelItemCount();
        for(int i = 0; i < items;)
        {
                /* get item */
                QTreeWidgetItem *ti = ui.searchResultWidget->topLevelItem(i);
                if (ti->text(SR_SEARCH_ID_COL) == searchId)
                {
			/* remove */
                        delete (ui.searchResultWidget->takeTopLevelItem(i));
			items--;
                }
                else
                {
			/* step to the next */
			i++;
                }
        }
	int sii = ui.searchSummaryWidget->indexOfTopLevelItem(ci);
	if (sii != -1)
	{
        	delete (ui.searchSummaryWidget->takeTopLevelItem(sii));
	}

        ui.searchResultWidget->update();
        ui.searchSummaryWidget->update();
}

/** remove all search results **/
void SearchDialog::searchRemoveAll()
{
	ui.searchResultWidget->clear();
	ui.searchSummaryWidget->clear();
	ui.FileTypeComboBox->setCurrentIndex(0);
	nextSearchId = 1;
}

/** clear keywords and ComboBox **/
void SearchDialog::clearKeyword()
{
 	ui.lineEdit->clear();
 	ui.lineEdit->setFocus();
}

void SearchDialog::copySearchLink()
{
    /* get the current search id from the summary window */
    QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
    if (!ci)
        return;

    /* get the keywords */
    QString keywords = ci->text(SS_TEXT_COL);

    std::cerr << "SearchDialog::copySearchLink(): keywords: " << keywords.toStdString();
    std::cerr << std::endl;

    RetroShareLink link;
    if (link.createSearch(keywords)) {
        QList<RetroShareLink> urls;
        urls.push_back(link);
        RSLinkClipboard::copyLinks(urls);
    }
}

/* *****************************************************************
        Advanced search implementation
*******************************************************************/
// Event handlers for hide and show events
void SearchDialog::hideEvent(QHideEvent * event)
{
    showAdvSearchDialog(false);
    MainPage::hideEvent(event);
}

void SearchDialog::toggleAdvancedSearchDialog(bool toggled)
{
    // record the users preference for future reference
    QString key (UI_PREF_ADVANCED_SEARCH);
    Settings->setValue(key, QVariant(toggled));

    showAdvSearchDialog(toggled);
}

void SearchDialog::showAdvSearchDialog(bool show)
{
    // instantiate if about to show for the first time
    if (advSearchDialog == 0 && show)
    {
        advSearchDialog = new AdvancedSearchDialog();
        connect(advSearchDialog, SIGNAL(search(Expression*)),
                this, SLOT(advancedSearch(Expression*)));
    }
    if (show) {
        advSearchDialog->show();
        advSearchDialog->raise();
        advSearchDialog->setFocus();
    } else if (advSearchDialog != 0){
        advSearchDialog->hide();
    }
}

// Creates a new entry in the search summary, not to leave it blank whatever happens.
//
void SearchDialog::initSearchResult(const std::string& txt,qulonglong searchId, bool advanced)
{
	QString sid_hexa = QString::number(searchId,16) ;

	QTreeWidgetItem *item2 = new QTreeWidgetItem();
	item2->setText(SS_TEXT_COL, QString::fromUtf8(txt.c_str()));
	item2->setText(SS_COUNT_COL, QString::number(0));
	item2->setText(SS_SEARCH_ID_COL, sid_hexa);

	item2->setData(SS_DATA_COL, ROLE_ADVANCED, advanced);

	ui.searchSummaryWidget->addTopLevelItem(item2);
	ui.searchSummaryWidget->setCurrentItem(item2);
}

void SearchDialog::advancedSearch(Expression* expression)
{
	advSearchDialog->hide();

	/* call to core */
	std::list<DirDetails> results;

	// send a turtle search request
	LinearizedExpression e ;
	expression->linearize(e) ;

	TurtleRequestId req_id = rsTurtle->turtleSearch(e) ;

	// This will act before turtle results come to the interface, thanks to the signals scheduling policy.
	// The text "bool exp" should be replaced by an appropriate text describing the actual search.
	initSearchResult(std::string("bool exp"),req_id, true) ;

	rsFiles -> SearchBoolExp(expression, results, DIR_FLAGS_REMOTE | DIR_FLAGS_NETWORK_WIDE | DIR_FLAGS_BROWSABLE);

	/* abstraction to allow reusee of tree rendering code */
	resultsToTree((advSearchDialog->getSearchAsString()).toStdString(),req_id, results);

//	// debug stuff
//	Expression *expression2 = LinearizedExpression::toExpr(e) ;
//	results.clear() ;
//	rsFiles -> SearchBoolExp(expression2, results, DIR_FLAGS_REMOTE | DIR_FLAGS_NETWORK_WIDE | DIR_FLAGS_BROWSABLE);
//	resultsToTree((advSearchDialog->getSearchAsString()).toStdString(),req_id+1, results);
}

void SearchDialog::searchKeywords()
{
	searchKeywords(ui.lineEdit->text());
}

void SearchDialog::searchAgain()
{
	/* get the current search text from the summary window */
	QTreeWidgetItem* ci = ui.searchSummaryWidget->currentItem();
	if (!ci || ci->data(SS_DATA_COL, ROLE_ADVANCED).toBool())
		return;

	/* get the search text */
	QString txt = ci->text(SS_TEXT_COL);
	searchRemove();
	searchKeywords(txt);
}

void SearchDialog::searchKeywords(const QString& keywords)
{
	std::string txt = keywords.toUtf8().constData();

	if(txt.length() < 3)
		return ;

	std::cerr << "SearchDialog::searchKeywords() : " << txt << std::endl;

	QStringList qWords = keywords.split(" ", QString::SkipEmptyParts);
	std::list<std::string> words;
	QStringListIterator qWordsIter(qWords);
	while (qWordsIter.hasNext())
		words.push_back(qWordsIter.next().toUtf8().constData());

	int n = words.size() ;

	if (n < 1)
		return;

	NameExpression exprs(ContainsAllStrings,words,true) ;
	LinearizedExpression lin_exp ;
	exprs.linearize(lin_exp) ;

	TurtleRequestId req_id ;

	if(ui._anonF2Fsearch_CB->isChecked())
	{
		if(n==1)
			req_id = rsTurtle->turtleSearch(txt) ;
		else
			req_id = rsTurtle->turtleSearch(lin_exp) ;
	}
	else
		req_id = ((((uint32_t)rand()) << 16)^0x1e2fd5e4) + (((uint32_t)rand())^0x1b19acfe) ; // generate a random 32 bits request id

	initSearchResult(txt,req_id, false) ;	// this will act before turtle results come to the interface, thanks to the signals scheduling policy.

	if(ui._friendListsearch_SB->isChecked() || ui._ownFiles_CB->isChecked())
	{
		/* extract keywords from lineEdit */
		// make a compound expression with an AND
		//

		std::list<DirDetails> finalResults ;

		if(ui._friendListsearch_SB->isChecked())
		{
			std::list<DirDetails> initialResults;

			rsFiles->SearchBoolExp(&exprs, initialResults, DIR_FLAGS_REMOTE) ;

			/* which extensions do we use? */
			DirDetails dd;

			for(std::list<DirDetails>::iterator resultsIter = initialResults.begin(); resultsIter != initialResults.end(); resultsIter ++)
			{
				dd = *resultsIter;
				finalResults.push_back(dd);
			}
		}

		if(ui._ownFiles_CB->isChecked())
		{
			std::list<DirDetails> initialResults;

			rsFiles->SearchBoolExp(&exprs, initialResults, DIR_FLAGS_LOCAL | DIR_FLAGS_NETWORK_WIDE | DIR_FLAGS_BROWSABLE) ;

			/* which extensions do we use? */
			DirDetails dd;

			for(std::list<DirDetails>::iterator resultsIter = initialResults.begin(); resultsIter != initialResults.end(); resultsIter ++)
			{
				dd = *resultsIter;
				finalResults.push_back(dd);
			}
		}

		/* abstraction to allow reusee of tree rendering code */
		resultsToTree(txt,req_id, finalResults);
		ui.lineEdit->clear() ;
	}
}

void SearchDialog::updateFiles(qulonglong search_id,FileDetail file)
{
	searchResultsQueue.push_back(std::pair<qulonglong,FileDetail>(search_id,file)) ;

	if(!_queueIsAlreadyTakenCareOf)
	{
		QTimer::singleShot(100,this,SLOT(processResultQueue())) ; 
		_queueIsAlreadyTakenCareOf = true ;
	}
}

void SearchDialog::processResultQueue()
{
	// This avoids a deadlock when gpg callback asks a passwd.
	// Send again in 10 secs.
	//
	if(RsAutoUpdatePage::eventsLocked())
	{
		QTimer::singleShot(10000,this,SLOT(processResultQueue())) ; 
		return ;
	}

	int nb_treated_elements = 0 ;

	while(!searchResultsQueue.empty() && nb_treated_elements++ < 500)
	{
		qulonglong search_id = searchResultsQueue.back().first ;
		FileDetail file = searchResultsQueue.back().second ;

		searchResultsQueue.pop_back() ;

		/* which extensions do we use? */
		std::string txt = ui.lineEdit->text().toStdString();
#ifdef DEBUG
		std::cout << "Updating file detail:" << std::endl ;
		std::cout << "  size = " << file.size << std::endl ;
		std::cout << "  name = " << file.name << std::endl ;
		std::cout << "  s_id = " << search_id << std::endl ;
#endif

		if (ui.FileTypeComboBox->currentIndex() == FILETYPE_IDX_ANY)
			insertFile(txt,search_id,file);
		else
		{
			// amend the text description of the search
			txt += " (" + ui.FileTypeComboBox->currentText().toStdString() + ")";
			// collect the extensions to use
			QString extStr = SearchDialog::FileTypeExtensionMap->value(ui.FileTypeComboBox->currentIndex());
			QStringList extList = extStr.split(" ");

			// get this file's extension
			QString qName = QString::fromUtf8(file.name.c_str());
			int extIndex = qName.lastIndexOf(".");

			if (extIndex >= 0)
			{
				QString qExt = qName.mid(extIndex+1).toUpper();

				if (qExt != "" )
					for (int i = 0; i < extList.size(); ++i)
						if (qExt == extList.at(i).toUpper())
							insertFile(txt,search_id,file);
			}
		}
	}
	if(!searchResultsQueue.empty())
		QTimer::singleShot(1000,this,SLOT(processResultQueue())) ; 
	else
		_queueIsAlreadyTakenCareOf = false ;
}

void SearchDialog::insertDirectory(const std::string &txt, qulonglong searchId, const DirDetails &dir, QTreeWidgetItem *item)
{
	QString sid_hexa = QString::number(searchId,16) ;

	if (dir.type == DIR_TYPE_FILE)
	{
		QTreeWidgetItem *child;
		if (item == NULL) {
			child = new QTreeWidgetItem(ui.searchResultWidget);
		} else {
			child = new QTreeWidgetItem(item);
		}

		/* translate search result for a file */
		
		child->setText(SR_NAME_COL, QString::fromUtf8(dir.name.c_str()));
		child->setText(SR_HASH_COL, QString::fromStdString(dir.hash));
		child->setText(SR_SIZE_COL, QString("%1").arg(dir.count,(int)15,(int)10));	// very important for sorting
		child->setText(SR_AGE_COL, QString("%1").arg(dir.age,15,10));
		child->setTextAlignment( SR_SIZE_COL, Qt::AlignRight );
		
		child->setText(SR_ID_COL, QString::number(1));
		child->setTextAlignment( SR_ID_COL, Qt::AlignRight );

		child->setText(SR_SEARCH_ID_COL, sid_hexa);
		setIconAndType(child, QString::fromUtf8(dir.name.c_str()));

		if (item == NULL) {
			ui.searchResultWidget->addTopLevelItem(child);
		} else {
			item->addChild(child);
		}
	}
	else
	{ /* it is a directory */
		QTreeWidgetItem *child;
		if (item == NULL) {
			child = new QTreeWidgetItem(ui.searchResultWidget);
		} else {
			child = new QTreeWidgetItem(item);
		}
    
		child->setIcon(SR_NAME_COL, QIcon(IMAGE_DIRECTORY));
		child->setText(SR_NAME_COL, QString::fromUtf8(dir.name.c_str()));
		child->setText(SR_HASH_COL, QString::fromStdString(dir.hash));
		//child->setText(SR_SIZE_COL, misc::toQString(dir.count));
		child->setText(SR_SIZE_COL, QString("%1").arg(dir.count,15,10));	// very important for sorting
		child->setText(SR_AGE_COL, QString("%1").arg(dir.age,15,10));
		child->setTextAlignment( SR_SIZE_COL, Qt::AlignRight );
		child->setText(SR_ID_COL, QString::number(1));
		child->setTextAlignment( SR_ID_COL, Qt::AlignRight );
		child->setText(SR_SEARCH_ID_COL, sid_hexa);
		child->setText(SR_TYPE_COL, tr("Folder"));


		if (item == NULL) {
			ui.searchResultWidget->addTopLevelItem(child);

			/* add to the summary as well */

			int items = ui.searchSummaryWidget->topLevelItemCount();
			bool found = false ;

			for(int i = 0; i < items; i++)
			{
				if(ui.searchSummaryWidget->topLevelItem(i)->text(SS_SEARCH_ID_COL) == sid_hexa)
				{
					// increment result since every item is new
					int s = ui.searchSummaryWidget->topLevelItem(i)->text(SS_COUNT_COL).toInt() ;
					ui.searchSummaryWidget->topLevelItem(i)->setText(SS_COUNT_COL,QString::number(s+1));
					found = true ;
				}
			}
			if(!found)
			{
				QTreeWidgetItem *item2 = new QTreeWidgetItem();
				item2->setText(SS_TEXT_COL, QString::fromStdString(txt));
				item2->setText(SS_COUNT_COL, QString::number(1));
				item2->setTextAlignment( SS_COUNT_COL, Qt::AlignRight );
				item2->setText(SS_SEARCH_ID_COL, sid_hexa);

				ui.searchSummaryWidget->addTopLevelItem(item2);
				ui.searchSummaryWidget->setCurrentItem(item2);
			}

			/* select this search result */
			selectSearchResults();
		} else {
			item->addChild(child);
		}

		/* go through all children directories/files for a recursive call */
		for (std::list<DirStub>::const_iterator it(dir.children.begin()); it != dir.children.end(); it ++) {
			DirDetails details;
			rsFiles->RequestDirDetails(it->ref, details, 0);
			insertDirectory(txt, searchId, details, child);
		}
	}
	
	if (ui.filterPatternLineEdit->text().isEmpty() == false) {
		FilterItems();
	}
}

void SearchDialog::insertDirectory(const std::string &txt, qulonglong searchId, const DirDetails &dir)
{
	return ; // Remove this statement to allow adding directories to the search results.

    QString sid_hexa = QString::number(searchId,16) ;
    QTreeWidgetItem *child = new QTreeWidgetItem(ui.searchResultWidget);

    child->setIcon(SR_NAME_COL, QIcon(IMAGE_DIRECTORY));
    child->setText(SR_NAME_COL, QString::fromUtf8(dir.name.c_str()));
    child->setText(SR_HASH_COL, QString::fromStdString(dir.hash));
	 child->setText(SR_SIZE_COL, QString("%1").arg(dir.count,(int)15,(int)10));	// very important for sorting
	 child->setText(SR_AGE_COL, QString("%1").arg(dir.min_age,15,10));
    child->setTextAlignment( SR_SIZE_COL, Qt::AlignRight );
    child->setText(SR_ID_COL, QString::number(1));
    child->setTextAlignment( SR_ID_COL, Qt::AlignRight );
    child->setText(SR_SEARCH_ID_COL, sid_hexa);
    child->setText(SR_TYPE_COL, tr("Folder"));

    ui.searchResultWidget->addTopLevelItem(child);

    /* add to the summary as well */

    int items = ui.searchSummaryWidget->topLevelItemCount();
    bool found = false ;

    for(int i = 0; i < items; i++)
    {
            if(ui.searchSummaryWidget->topLevelItem(i)->text(SS_SEARCH_ID_COL) == sid_hexa)
            {
                    // increment result since every item is new
                    int s = ui.searchSummaryWidget->topLevelItem(i)->text(SS_COUNT_COL).toInt() ;
                    ui.searchSummaryWidget->topLevelItem(i)->setText(SS_COUNT_COL,QString::number(s+1));
                    found = true ;
            }
    }
    if(!found)
    {
            QTreeWidgetItem *item2 = new QTreeWidgetItem();
            item2->setText(SS_TEXT_COL, QString::fromStdString(txt));
            item2->setText(SS_COUNT_COL, QString::number(1));
            item2->setTextAlignment( SS_COUNT_COL, Qt::AlignRight );
            item2->setText(SS_SEARCH_ID_COL, sid_hexa);

            ui.searchSummaryWidget->addTopLevelItem(item2);
            ui.searchSummaryWidget->setCurrentItem(item2);
    }

    selectSearchResults();
    
	if (ui.filterPatternLineEdit->text().isEmpty() == false) {
		FilterItems();
	}
// TODO: check for duplicate directories
}

void SearchDialog::insertFile(const std::string& txt,qulonglong searchId, const FileDetail& file, int searchType)
{
	// algo:
	//
	// 1 - look in result window whether the file already exist.
	// 	1.1 - If yes, just increment the source number.
	// 	2.2 - Otherwize, add an entry.
	// 2 - look in the summary whether there exist the same request id.
	// 	1.1 - If yes, just increment the result number.
	// 	2.2 - Otherwize, add an entry.
	//
	//
	static std::map<qulonglong,uint32_t> nb_results ;

	if(nb_results.find(searchId) == nb_results.end())
		nb_results[searchId] = 0 ;

	if((int) nb_results[searchId] >= ui._max_results_SB->value())
		return ;

	// 1 - look in result window whether the file already exists.
	//
	bool found = false ;
	int sources;
	int friendSource = 0;
	int anonymousSource = 0;
	QString modifiedResult;

	QString sid_hexa = QString::number(searchId,16) ;

	QList<QTreeWidgetItem*> itms = ui.searchResultWidget->findItems(QString::fromStdString(file.hash),Qt::MatchExactly,SR_HASH_COL) ;

	for(QList<QTreeWidgetItem*>::const_iterator it(itms.begin());it!=itms.end();++it)
		if((*it)->text(SR_SEARCH_ID_COL) == sid_hexa)
		{
			QString resultCount = (*it)->text(SR_ID_COL);
			QStringList modifiedResultCount = resultCount.split("/", QString::SkipEmptyParts); 
			if(searchType == FRIEND_SEARCH)
			{
				friendSource = modifiedResultCount.at(0).toInt() + 1;
				anonymousSource = modifiedResultCount.at(1).toInt();
			}
			else
			{
				friendSource = modifiedResultCount.at(0).toInt();
				anonymousSource = modifiedResultCount.at(1).toInt() + 1;
			}
			anonymousSource = anonymousSource + friendSource;
			modifiedResult = QString::number(friendSource) + "/" + QString::number(anonymousSource);
			(*it)->setText(SR_ID_COL,modifiedResult);
			QTreeWidgetItem *item = (*it);
			found = true ;

			if (!item->data(SR_DATA_COL, SR_ROLE_LOCAL).toBool()) {
				QColor foreground;

				int sources = friendSource + anonymousSource ;
				if (sources < 1)
				{
					foreground = QColor(0, 0, 19);
				}
				else if (sources < 2)
				{
					foreground = QColor(0, 0, 38);
				}
				else if (sources < 3)
				{
					foreground = QColor(0, 0, 57);
				}
				else if (sources < 4)
				{
					foreground = QColor(0, 0, 76);
				}
				else if (sources < 5)
				{
					foreground = QColor(0, 0, 96);
				}
				else if (sources < 6)
				{
					foreground = QColor(0, 0, 114);
				}
				else if (sources < 7)
				{
					foreground = QColor(0, 0, 133);
				}
				else if (sources < 8)
				{
					foreground = QColor(0, 0, 152);
				}
				else if (sources < 9)
				{
					foreground = QColor(0, 0, 171);
				}
				else if (sources < 10)
				{
					foreground = QColor(0, 0, 190);
				}
				else if (sources < 11)
				{
					foreground = QColor(0, 0, 209);
				}
				else if (sources < 12)
				{
					foreground = QColor(0, 0, 228);
				}
				else
				{
					foreground = QColor(0, 0, 228);
				}

				QBrush brush(foreground);
				for (int i = 0; i < item->columnCount(); i++)
				{
					item->setForeground(i, brush);
				}
			}
			break ;
		}

	if(!found)
	{
		++nb_results[searchId] ;

		/* translate search results */
		
		QTreeWidgetItem *item = new QTreeWidgetItem();
		item->setText(SR_NAME_COL, QString::fromUtf8(file.name.c_str()));
		item->setText(SR_HASH_COL, QString::fromStdString(file.hash));

		setIconAndType(item, QString::fromUtf8(file.name.c_str()));

		/*
		 * to facilitate downlaods we need to save the file size too
		 */

		item->setText(SR_SIZE_COL, QString("%1").arg(file.size,15,10));	// very important for sorting
		item->setText(SR_AGE_COL, QString("%1").arg(file.age,15,10));
		item->setTextAlignment( SR_SIZE_COL, Qt::AlignRight );
		if(searchType == FRIEND_SEARCH)
		{
			friendSource = 1;
			anonymousSource = 0;
		}
		else
		{
			friendSource = 0;
			anonymousSource = 1;
		}

		anonymousSource = anonymousSource + friendSource;
		modifiedResult =QString::number(friendSource) + "/" + QString::number(anonymousSource);
		item->setText(SR_ID_COL,modifiedResult);
		item->setTextAlignment( SR_ID_COL, Qt::AlignRight );
		item->setText(SR_SEARCH_ID_COL, sid_hexa);

		QColor foreground;
		bool setForeground = false;

		FileInfo fi;
		if (rsFiles->FileDetails(file.hash, RS_FILE_HINTS_EXTRA | RS_FILE_HINTS_LOCAL | RS_FILE_HINTS_BROWSABLE | RS_FILE_HINTS_NETWORK_WIDE | RS_FILE_HINTS_SPEC_ONLY, fi)) {
			item->setData(SR_DATA_COL, SR_ROLE_LOCAL, true);
			foreground = Qt::red;
			setForeground = true;
		} else {
			item->setData(SR_DATA_COL, SR_ROLE_LOCAL, false);

			sources = item->text(SR_ID_COL).toInt();
			if (sources == 1)
			{
				foreground = QColor(0, 0, 0);
				setForeground = true;
			}
		}

		if (setForeground) {
			QBrush brush(foreground);
			for (int i = 0; i < item->columnCount(); i++)
			{
				item->setForeground(i, brush);
			}
		}

		ui.searchResultWidget->addTopLevelItem(item);
	}

	/* add to the summary as well */

	int items2 = ui.searchSummaryWidget->topLevelItemCount();
	bool found2 = false ;

	for(int i = 0; i < items2; i++)
		if(ui.searchSummaryWidget->topLevelItem(i)->text(SS_SEARCH_ID_COL) == sid_hexa)
		{
			if(!found)									// only increment result when it's a new item.
			{
				int s = ui.searchSummaryWidget->topLevelItem(i)->text(SS_COUNT_COL).toInt() ;
				ui.searchSummaryWidget->topLevelItem(i)->setText(SS_COUNT_COL,QString::number(s+1));
			}
			found2 = true ;
			break ;
		}

	if(!found2)
	{
		QTreeWidgetItem *item2 = new QTreeWidgetItem();
		item2->setText(SS_TEXT_COL, QString::fromStdString(txt));
		item2->setText(SS_COUNT_COL, QString::number(1));
		item2->setTextAlignment( SS_COUNT_COL, Qt::AlignRight );
		item2->setText(SS_SEARCH_ID_COL, sid_hexa);

		ui.searchSummaryWidget->addTopLevelItem(item2);
		ui.searchSummaryWidget->setCurrentItem(item2);
	}

	/* select this search result */
	selectSearchResults();
	
	if (ui.filterPatternLineEdit->text().isEmpty() == false) {
		FilterItems();
	}
}

void SearchDialog::resultsToTree(std::string txt,qulonglong searchId, const std::list<DirDetails>& results)
{
	ui.searchResultWidget->setSortingEnabled(false);

	/* translate search results */
	std::ostringstream out;
	out << searchId;

	std::list<DirDetails>::const_iterator it;
	for(it = results.begin(); it != results.end(); it++)
		if (it->type == DIR_TYPE_FILE) {
			FileDetail fd;
			fd.id	= it->id;
			fd.name = it->name;
			fd.hash = it->hash;
			fd.path = it->path;
			fd.size = it->count;
			fd.age 	= it->age;
			fd.rank = 0;

			insertFile(txt,searchId,fd, FRIEND_SEARCH);
		} else if (it->type == DIR_TYPE_DIR) {
//			insertDirectory(txt, searchId, *it, NULL);
			insertDirectory(txt, searchId, *it);
		}

	ui.searchResultWidget->setSortingEnabled(true);
}

void SearchDialog::selectSearchResults(int index)
{
    int cindex = ui.FileTypeComboBox->currentIndex();
    index = (index == -1) ? (cindex == -1 ? 0 : cindex):index;
    QString alltypes = FileTypeExtensionMap->value(index);
    QStringList types = alltypes.split(" ");


	/* highlight this search in summary window */
	QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
	if (!ci)
		return;

	/* get the searchId text */
	QString searchId = ci->text(SS_SEARCH_ID_COL);
#ifdef DEBUG
	std::cerr << "SearchDialog::selectSearchResults(): searchId: " << searchId.toStdString();
	std::cerr << std::endl;
#endif

	/* show only matching searchIds in main window */
	int items = ui.searchResultWidget->topLevelItemCount();
	for(int i = 0; i < items; i++)
	{
		/* get item */
		QTreeWidgetItem *ti = ui.searchResultWidget->topLevelItem(i);
		if (ti->text(SR_SEARCH_ID_COL) == searchId)
                {
                    if (index == FILETYPE_IDX_ANY)
                        ti->setHidden(false);
                    else if (index == FILETYPE_IDX_DIRECTORY && ti->text(SR_HASH_COL).isEmpty())
                        ti->setHidden(false);
                    else if (types.contains(QFileInfo(ti->text(SR_NAME_COL)).suffix(), Qt::CaseInsensitive))
                        ti->setHidden(false);
                    else
                        ti->setHidden(true);
		}
		else
		{
			ti->setHidden(true);
		}
	}
	ui.searchResultWidget->update();
	ui.filterPatternLineEdit->clear();
}

void SearchDialog::setIconAndType(QTreeWidgetItem *item, const QString& filename)
{
	item->setIcon(SR_NAME_COL, FilesDefs::getIconFromFilename(filename));
	item->setText(SR_TYPE_COL, FilesDefs::getNameFromFilename(filename));
}

void SearchDialog::copyResultLink()
{
    /* should also be able to handle multi-selection */
    QList<QTreeWidgetItem*> itemsForCopy = ui.searchResultWidget->selectedItems();
    int numdls = itemsForCopy.size();
    QTreeWidgetItem * item;

	QList<RetroShareLink> urls ;

    for (int i = 0; i < numdls; ++i) 
	 {
		 item = itemsForCopy.at(i);
		 // call copy

		 if (!item->childCount()) 
		 {
			 std::cerr << "SearchDialog::copyResultLink() Calling set retroshare link";
			 std::cerr << std::endl;

			 QString fhash = item->text(SR_HASH_COL);
			 qulonglong fsize = item->text(SR_SIZE_COL).toULongLong();
			 QString fname = item->text(SR_NAME_COL);

			 RetroShareLink link;
			 if (link.createFile(fname, fsize, fhash)) {
				 std::cerr << "new link added to clipboard: " << link.toString().toStdString() << std::endl ;
				 urls.push_back(link) ;
			 }
		 } 
	 }
	 RSLinkClipboard::copyLinks(urls) ;
}

void SearchDialog::sendLinkTo( )
{
    copyResultLink();

    /* create a message */
    MessageComposer *nMsgDialog = MessageComposer::newMsg();
    if (nMsgDialog == NULL) {
        return;
    }

    nMsgDialog->insertTitleText(tr("New RetroShare Link(s)"));

    nMsgDialog->insertMsgText(RSLinkClipboard::toHtml()) ;
    nMsgDialog->show();

    /* window will destroy itself! */
}

void SearchDialog::togglereset()
{
    QString text = ui.lineEdit->text();
    
    if (text.isEmpty())
    {
      ui.resetButton->hide();
    }
    else
    {
      ui.resetButton->show();
    }
    
}

// not in use for the moment
void SearchDialog::onComboIndexChanged(int index)
{
    if (!FileTypeExtensionMap->contains(index) && index != FILETYPE_IDX_DIRECTORY)
        return;
    QString alltypes = FileTypeExtensionMap->value(index);
    QStringList types = alltypes.split(" ");
    int items = ui.searchResultWidget->topLevelItemCount();
    for (int i = 0; i < items; i++) {
        QTreeWidgetItem *ti = ui.searchResultWidget->topLevelItem(i);
        QString name = ti->text(SR_NAME_COL);

        if (index == FILETYPE_IDX_ANY) {
            if (ti->isHidden()) {
                QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
                if (!ci) {
                    ti->setHidden(false);
                    continue;
                }
                if (ti->text(SR_SEARCH_ID_COL) == ci->text(SS_SEARCH_ID_COL)) {
                    ti->setHidden(false);
                }
            }
        } else if (index == FILETYPE_IDX_DIRECTORY) {
            if (ti->text(SR_HASH_COL).isEmpty()) {
                if (ti->isHidden()) {
                    QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
                    if (!ci) {
                        ti->setHidden(false);
                        continue;
                    }
                    if (ti->text(SR_SEARCH_ID_COL) == ci->text(SS_SEARCH_ID_COL)) {
                        ti->setHidden(false);
                    }
                }
            } else {
                ti->setHidden(true);
            }
        } else {
            if (name.lastIndexOf(".") >= 0) {
                QString ext = name.mid(name.lastIndexOf(".") + 1);
                if (!ext.isEmpty() && types.contains(ext, Qt::CaseInsensitive)) {
                    if (ti->isHidden()) {
                        QTreeWidgetItem *ci = ui.searchSummaryWidget->currentItem();
                        if (!ci) {
                            ti->setHidden(false);
                            continue;
                        }
                        if (ti->text(SR_SEARCH_ID_COL) == ci->text(SS_SEARCH_ID_COL)) {
                            ti->setHidden(false);
                        }
                    }
                } else {
                    ti->setHidden(true);
                }
            } else {
                ti->setHidden(true);
            }
        }
    }
}

/* clear Filter */
void SearchDialog::clearFilter()
{
    ui.filterPatternLineEdit->clear();
    ui.filterPatternLineEdit->setFocus();
}

void SearchDialog::filterRegExpChanged()
{

    QString text = ui.filterPatternLineEdit->text();

    if (text.isEmpty()) {
        ui.clearButton->hide();
    } else {
        ui.clearButton->show();
    }

    FilterItems();
}

void SearchDialog::filterColumnChanged()
{

     FilterItems();

}

void SearchDialog::FilterItems()
{
    QString sPattern = ui.filterPatternLineEdit->text();
    int nFilterColumn = FilterColumnFromComboBox(ui.filterColumnComboBox->currentIndex());

    int nCount = ui.searchResultWidget->topLevelItemCount ();
    for (int nIndex = 0; nIndex < nCount; nIndex++) {
        FilterItem(ui.searchResultWidget->topLevelItem(nIndex), sPattern, nFilterColumn);
    }

}

bool SearchDialog::FilterItem(QTreeWidgetItem *pItem, QString &sPattern, int nFilterColumn)
{
    bool bVisible = true;

    if (sPattern.isEmpty() == false) {
        if (pItem->text(nFilterColumn).contains(sPattern, Qt::CaseInsensitive) == false) {
            bVisible = false;
        }
    }

    int nVisibleChildCount = 0;
    int nCount = pItem->childCount();
    for (int nIndex = 0; nIndex < nCount; nIndex++) {
        if (FilterItem(pItem->child(nIndex), sPattern, nFilterColumn)) {
            nVisibleChildCount++;
        }
    }

    if (bVisible || nVisibleChildCount) {
        pItem->setHidden(false);
    } else {
        pItem->setHidden(true);
    }

    return (bVisible || nVisibleChildCount);
}