/* Copyright (C) 2005 J.F.Dockes
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "autoconfig.h"
#include <algorithm>
#include <unistd.h>
#include <list>
#include <stdio.h>
#include <qmessagebox.h>
#include <qpushbutton.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qcombobox.h>
#include <QTableWidget>
#include <QHeaderView>
#include <QClipboard>
#include <QKeyEvent>
#include "debuglog.h"
#include "recoll.h"
#include "spell_w.h"
#include "guiutils.h"
#include "rcldb.h"
#include "rclhelp.h"
#ifdef RCL_USE_ASPELL
#include "rclaspell.h"
#endif
void SpellW::init()
{
// Don't change the order, or fix the rest of the code...
/*0*/expTypeCMB->addItem(tr("Wildcards"));
/*1*/expTypeCMB->addItem(tr("Regexp"));
/*2*/expTypeCMB->addItem(tr("Stem expansion"));
#ifdef RCL_USE_ASPELL
bool noaspell = false;
theconfig->getConfParam("noaspell", &noaspell);
if (!noaspell)
/*3*/expTypeCMB->addItem(tr("Spelling/Phonetic"));
#endif
int typ = prefs.termMatchType;
if (typ < 0 || typ > expTypeCMB->count())
typ = 0;
expTypeCMB->setCurrentIndex(typ);
// Stemming language combobox
stemLangCMB->clear();
vector<string> langs;
if (!getStemLangs(langs)) {
QMessageBox::warning(0, "Recoll",
tr("error retrieving stemming languages"));
}
for (vector<string>::const_iterator it = langs.begin();
it != langs.end(); it++) {
stemLangCMB->
addItem(QString::fromAscii(it->c_str(), it->length()));
}
stemLangCMB->setEnabled(expTypeCMB->currentIndex()==2);
(void)new HelpClient(this);
HelpClient::installMap((const char *)this->objectName().toUtf8(),
"RCL.SEARCH.TERMEXPLORER");
// signals and slots connections
connect(baseWordLE, SIGNAL(textChanged(const QString&)),
this, SLOT(wordChanged(const QString&)));
connect(baseWordLE, SIGNAL(returnPressed()), this, SLOT(doExpand()));
connect(expandPB, SIGNAL(clicked()), this, SLOT(doExpand()));
connect(dismissPB, SIGNAL(clicked()), this, SLOT(close()));
connect(expTypeCMB, SIGNAL(activated(int)), this, SLOT(modeSet(int)));
QStringList labels(tr("Term"));
labels.push_back(tr("Doc. / Tot."));
resTW->setHorizontalHeaderLabels(labels);
resTW->setShowGrid(0);
resTW->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
resTW->verticalHeader()->setDefaultSectionSize(20);
connect(resTW,
SIGNAL(cellDoubleClicked(int, int)),
this, SLOT(textDoubleClicked(int, int)));
resTW->setColumnWidth(0, 200);
resTW->setColumnWidth(1, 150);
resTW->installEventFilter(this);
}
/* Expand term according to current mode */
void SpellW::doExpand()
{
// Can't clear qt4 table widget: resets column headers too
resTW->setRowCount(0);
if (baseWordLE->text().isEmpty())
return;
string reason;
if (!maybeOpenDb(reason)) {
LOGDEB(("SpellW::doExpand: db error: %s\n", reason.c_str()));
return;
}
string expr = string((const char *)baseWordLE->text().toUtf8());
list<string> suggs;
prefs.termMatchType = expTypeCMB->currentIndex();
Rcl::Db::MatchType mt = Rcl::Db::ET_WILD;
switch(expTypeCMB->currentIndex()) {
case 0: mt = Rcl::Db::ET_WILD; break;
case 1:mt = Rcl::Db::ET_REGEXP; break;
case 2:mt = Rcl::Db::ET_STEM; break;
}
Rcl::TermMatchResult res;
switch (expTypeCMB->currentIndex()) {
case 0:
case 1:
case 2:
{
string l_stemlang = (const char*)stemLangCMB->currentText().toAscii();
if (!rcldb->termMatch(mt, l_stemlang, expr, res, 200)) {
LOGERR(("SpellW::doExpand:rcldb::termMatch failed\n"));
return;
}
statsLBL->setText(tr("Index: %1 documents, average length %2 terms")
.arg(res.dbdoccount).arg(res.dbavgdoclen, 0, 'f', 1));
}
break;
#ifdef RCL_USE_ASPELL
case 3: {
LOGDEB(("SpellW::doExpand: aspelling\n"));
if (!aspell) {
QMessageBox::warning(0, "Recoll",
tr("Aspell init failed. "
"Aspell not installed?"));
LOGDEB(("SpellW::doExpand: aspell init error\n"));
return;
}
list<string> suggs;
if (!aspell->suggest(*rcldb, expr, suggs, reason)) {
QMessageBox::warning(0, "Recoll",
tr("Aspell expansion error. "));
LOGERR(("SpellW::doExpand:suggest failed: %s\n", reason.c_str()));
}
for (list<string>::const_iterator it = suggs.begin();
it != suggs.end(); it++)
res.entries.push_back(Rcl::TermMatchEntry(*it));
#ifdef TESTING_XAPIAN_SPELL
string rclsugg = rcldb->getSpellingSuggestion(expr);
if (!rclsugg.empty()) {
res.entries.push_back(Rcl::TermMatchEntry("Xapian spelling:"));
res.entries.push_back(Rcl::TermMatchEntry(rclsugg));
}
#endif // TESTING_XAPIAN_SPELL
}
#endif
}
if (res.entries.empty()) {
resTW->setItem(0, 0, new QTableWidgetItem(tr("No expansion found")));
} else {
int row = 0;
for (list<Rcl::TermMatchEntry>::iterator it = res.entries.begin();
it != res.entries.end(); it++) {
LOGDEB(("SpellW::expand: %6d [%s]\n", it->wcf, it->term.c_str()));
char num[30];
if (it->wcf)
sprintf(num, "%d / %d", it->docs, it->wcf);
else
num[0] = 0;
if (resTW->rowCount() <= row)
resTW->setRowCount(row+1);
resTW->setItem(row, 0,
new QTableWidgetItem(QString::fromUtf8(it->term.c_str())));
resTW->setItem(row++, 1,
new QTableWidgetItem(QString::fromAscii(num)));
}
resTW->setRowCount(row+1);
}
}
void SpellW::wordChanged(const QString &text)
{
if (text.isEmpty()) {
expandPB->setEnabled(false);
resTW->setRowCount(0);
} else {
expandPB->setEnabled(true);
}
}
void SpellW::textDoubleClicked() {}
void SpellW::textDoubleClicked(int row, int)
{
QTableWidgetItem *item = resTW->item(row, 0);
if (item)
emit(wordSelect(item->text()));
}
void SpellW::modeSet(int mode)
{
if (mode == 2)
stemLangCMB->setEnabled(true);
else
stemLangCMB->setEnabled(false);
}
void SpellW::copy()
{
QItemSelectionModel * selection = resTW->selectionModel();
QModelIndexList indexes = selection->selectedIndexes();
if(indexes.size() < 1)
return;
// QModelIndex::operator < sorts first by row, then by column.
// this is what we need
std::sort(indexes.begin(), indexes.end());
// You need a pair of indexes to find the row changes
QModelIndex previous = indexes.first();
indexes.removeFirst();
QString selected_text;
QModelIndex current;
Q_FOREACH(current, indexes)
{
QVariant data = resTW->model()->data(previous);
QString text = data.toString();
// At this point `text` contains the text in one cell
selected_text.append(text);
// If you are at the start of the row the row number of the previous index
// isn't the same. Text is followed by a row separator, which is a newline.
if (current.row() != previous.row())
{
selected_text.append(QLatin1Char('\n'));
}
// Otherwise it's the same row, so append a column separator, which is a tab.
else
{
selected_text.append(QLatin1Char('\t'));
}
previous = current;
}
// add last element
selected_text.append(resTW->model()->data(current).toString());
selected_text.append(QLatin1Char('\n'));
qApp->clipboard()->setText(selected_text, QClipboard::Selection);
qApp->clipboard()->setText(selected_text, QClipboard::Clipboard);
}
bool SpellW::eventFilter(QObject *target, QEvent *event)
{
if (event->type() != QEvent::KeyPress ||
(target != resTW && target != resTW->viewport()))
return false;
QKeyEvent *keyEvent = (QKeyEvent *)event;
if(keyEvent->matches(QKeySequence::Copy) )
{
copy();
return true;
}
return false;
}