#ifndef lint
static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.31 2007-11-15 18:44:51 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* 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 <unistd.h>
#include <time.h>
#include <sys/stat.h>
#include <list>
#include <utility>
#ifndef NO_NAMESPACES
using std::pair;
#endif /* NO_NAMESPACES */
#include <qmessagebox.h>
#include <qthread.h>
#include <qvariant.h>
#include <qpushbutton.h>
#include <qtabwidget.h>
#if (QT_VERSION < 0x040000)
#include <qtextedit.h>
#include <qprogressdialog.h>
#define THRFINISHED finished
#else
#include <q3textedit.h>
#include <q3progressdialog.h>
#include <q3stylesheet.h>
#define THRFINISHED isFinished
#endif
#include <qevent.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qcheckbox.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qapplication.h>
#include <qclipboard.h>
#include "debuglog.h"
#include "pathut.h"
#include "internfile.h"
#include "recoll.h"
#include "plaintorich.h"
#include "smallut.h"
#include "wipedir.h"
#include "cancelcheck.h"
#include "preview_w.h"
#include "guiutils.h"
#if (QT_VERSION < 0x030300)
#define wasCanceled wasCancelled
#endif
#if (QT_VERSION < 0x040000)
#include <qtextedit.h>
#include <private/qrichtext_p.h>
#define QTEXTEDIT QTextEdit
#define QTEXTCURSOR QTextCursor
#define QTEXTPARAGRAPH QTextParagraph
#define QTEXTSTRINGCHAR QTextStringChar
#else
#include <q3textedit.h>
#include "q3richtext_p.h"
#define QTEXTEDIT Q3TextEdit
#define QTEXTCURSOR Q3TextCursor
#define QTEXTPARAGRAPH Q3TextParagraph
#define QTEXTSTRINGCHAR Q3TextStringChar
#endif
// QTextEdit's scrollToAnchor() is supposed to make the anchor visible, but
// actually, it only moves to the top of the paragraph containing the anchor.
// As we only have one paragraph, this doesnt' help a lot (qt3 and qt4)
//
// So, had to write a different function, inspired from what
// qtextedit::find() does, instead. This ones actually moves the
// cursor, which is probably not necessary, but does what we need.
//
// Problem is, it uses the sem-private qrichtext_p.h, which is not
// even installed under qt4. We use a local copy, which is not nice.
void QTextEditFixed::moveToAnchor(const QString& name)
{
if (name.isEmpty())
return;
sync();
QTEXTCURSOR l_cursor(document());
QTEXTPARAGRAPH* last = document()->lastParagraph();
for (;;) {
QTEXTSTRINGCHAR* c = l_cursor.paragraph()->at(l_cursor.index());
if(c->isAnchor()) {
QString a = c->anchorName();
if ( a == name ||
(a.contains( '#' ) &&
QStringList::split('#', a).contains(name))) {
*(textCursor()) = l_cursor;
ensureCursorVisible();
break;
}
}
if (l_cursor.paragraph() == last && l_cursor.atParagEnd())
break;
l_cursor.gotoNextLetter();
}
}
void Preview::init()
{
setName("Preview");
setSizePolicy( QSizePolicy((QSizePolicy::SizeType)5,
(QSizePolicy::SizeType)5, 0, 0,
sizePolicy().hasHeightForWidth()));
QVBoxLayout* previewLayout =
new QVBoxLayout( this, 4, 6, "previewLayout");
pvTab = new QTabWidget(this, "pvTab");
// Create the first tab. Should be possible to use addEditorTab
// but this causes a pb with the sizeing
QWidget *unnamed = new QWidget(pvTab, "unnamed");
QVBoxLayout *unnamedLayout =
new QVBoxLayout(unnamed, 0, 6, "unnamedLayout");
QTextEditFixed *pvEdit = new QTextEditFixed(unnamed, "pvEdit");
pvEdit->setReadOnly(TRUE);
pvEdit->setUndoRedoEnabled(FALSE);
unnamedLayout->addWidget(pvEdit);
pvTab->insertTab(unnamed, QString::fromLatin1(""));
m_tabData.push_back(TabData(pvTab->currentPage()));
previewLayout->addWidget(pvTab);
// Create the buttons and entry field
QHBoxLayout *layout3 = new QHBoxLayout(0, 0, 6, "layout3");
searchLabel = new QLabel(this, "searchLabel");
layout3->addWidget(searchLabel);
searchTextLine = new QLineEdit(this, "searchTextLine");
layout3->addWidget(searchTextLine);
nextButton = new QPushButton(this, "nextButton");
nextButton->setEnabled(TRUE);
layout3->addWidget(nextButton);
prevButton = new QPushButton(this, "prevButton");
prevButton->setEnabled(TRUE);
layout3->addWidget(prevButton);
clearPB = new QPushButton(this, "clearPB");
clearPB->setEnabled(FALSE);
layout3->addWidget(clearPB);
matchCheck = new QCheckBox(this, "matchCheck");
layout3->addWidget(matchCheck);
previewLayout->addLayout(layout3);
resize(QSize(640, 480).expandedTo(minimumSizeHint()));
// buddies
searchLabel->setBuddy(searchTextLine);
searchLabel->setText(tr("&Search for:"));
nextButton->setText(tr("&Next"));
prevButton->setText(tr("&Previous"));
clearPB->setText(tr("Clear"));
matchCheck->setText(tr("Match &Case"));
#if 0
// Couldn't get a small button really in the corner. stays on the left of
// the button area and looks ugly
QPixmap px = QPixmap::fromMimeSource("cancel.png");
QPushButton * bt = new QPushButton(px, "", this);
bt->setFixedSize(px.size());
#else
QPushButton * bt = new QPushButton(tr("Close Tab"), this);
#endif
pvTab->setCornerWidget(bt);
// signals and slots connections
connect(searchTextLine, SIGNAL(textChanged(const QString&)),
this, SLOT(searchTextLine_textChanged(const QString&)));
connect(nextButton, SIGNAL(clicked()), this, SLOT(nextPressed()));
connect(prevButton, SIGNAL(clicked()), this, SLOT(prevPressed()));
connect(clearPB, SIGNAL(clicked()), searchTextLine, SLOT(clear()));
connect(pvTab, SIGNAL(currentChanged(QWidget *)),
this, SLOT(currentChanged(QWidget *)));
connect(bt, SIGNAL(clicked()), this, SLOT(closeCurrentTab()));
m_dynSearchActive = false;
m_canBeep = true;
m_currentW = 0;
if (prefs.pvwidth > 100) {
resize(prefs.pvwidth, prefs.pvheight);
}
m_loading = false;
currentChanged(pvTab->currentPage());
m_justCreated = true;
m_haveAnchors = false;
m_curAnchor = 1;
}
void Preview::closeEvent(QCloseEvent *e)
{
LOGDEB(("Preview::closeEvent. m_loading %d\n", m_loading));
if (m_loading) {
CancelCheck::instance().setCancel();
e->ignore();
return;
}
prefs.pvwidth = width();
prefs.pvheight = height();
emit previewExposed(this, m_searchId, -1);
emit previewClosed(this);
QWidget::closeEvent(e);
}
bool Preview::eventFilter(QObject *target, QEvent *event)
{
if (event->type() != QEvent::KeyPress)
return false;
LOGDEB1(("Preview::eventFilter: keyEvent\n"));
QKeyEvent *keyEvent = (QKeyEvent *)event;
if (keyEvent->key() == Qt::Key_Q &&
(keyEvent->state() & Qt::ControlButton)) {
recollNeedsExit = 1;
return true;
} else if (keyEvent->key() == Qt::Key_Escape) {
close();
return true;
} else if (keyEvent->key() == Qt::Key_Down &&
(keyEvent->state() & Qt::ShiftButton)) {
// LOGDEB(("Preview::eventFilter: got Shift-Up\n"));
TabData *d = tabDataForCurrent();
if (d)
emit(showNext(this, m_searchId, d->docnum));
return true;
} else if (keyEvent->key() == Qt::Key_Up &&
(keyEvent->state() & Qt::ShiftButton)) {
// LOGDEB(("Preview::eventFilter: got Shift-Down\n"));
TabData *d = tabDataForCurrent();
if (d)
emit(showPrev(this, m_searchId, d->docnum));
return true;
} else if (keyEvent->key() == Qt::Key_W &&
(keyEvent->state() & Qt::ControlButton)) {
// LOGDEB(("Preview::eventFilter: got ^W\n"));
closeCurrentTab();
return true;
} else if (m_dynSearchActive) {
if (keyEvent->key() == Qt::Key_F3) {
doSearch(searchTextLine->text(), true, false);
return true;
}
if (target != searchTextLine)
return QApplication::sendEvent(searchTextLine, event);
} else {
QWidget *tw = pvTab->currentPage();
QTextEditFixed *e = 0;
if (tw)
e = (QTextEditFixed *)tw->child("pvEdit");
LOGDEB1(("Widget: %p, edit %p, target %p\n", tw, e, target));
if (e && target == e) {
if (keyEvent->key() == Qt::Key_Slash) {
searchTextLine->setFocus();
m_dynSearchActive = true;
return true;
} else if (keyEvent->key() == Qt::Key_Space) {
e->scrollBy(0, e->visibleHeight());
return true;
} else if (keyEvent->key() == Qt::Key_BackSpace) {
e->scrollBy(0, -e->visibleHeight());
return true;
}
}
}
return false;
}
void Preview::searchTextLine_textChanged(const QString & text)
{
LOGDEB1(("search line text changed. text: '%s'\n", text.ascii()));
if (text.isEmpty()) {
m_dynSearchActive = false;
// nextButton->setEnabled(false);
// prevButton->setEnabled(false);
clearPB->setEnabled(false);
} else {
m_dynSearchActive = true;
// nextButton->setEnabled(true);
// prevButton->setEnabled(true);
clearPB->setEnabled(true);
doSearch(text, false, false);
}
}
#if (QT_VERSION >= 0x040000)
#define QProgressDialog Q3ProgressDialog
#define QStyleSheetItem Q3StyleSheetItem
#endif
QTextEditFixed *Preview::getCurrentEditor()
{
QWidget *tw = pvTab->currentPage();
QTextEditFixed *edit = 0;
if (tw) {
edit = (QTextEditFixed*)tw->child("pvEdit");
}
return edit;
}
// Perform text search. If next is true, we look for the next match of the
// current search, trying to advance and possibly wrapping around. If next is
// false, the search string has been modified, we search for the new string,
// starting from the current position
void Preview::doSearch(const QString &_text, bool next, bool reverse,
bool wordOnly)
{
LOGDEB(("Preview::doSearch: text [%s] txtlen %d next %d rev %d word %d\n",
(const char *)_text.utf8(), _text.length(), int(next),
int(reverse), int(wordOnly)));
QString text = _text;
bool matchCase = matchCheck->isChecked();
QTextEditFixed *edit = getCurrentEditor();
if (edit == 0) {
// ??
return;
}
if (text.isEmpty()) {
if (m_haveAnchors == false)
return;
if (m_curAnchor == m_lastAnchor)
m_curAnchor = 1;
else
m_curAnchor++;
QString aname =
QString::fromUtf8(termAnchorName(m_curAnchor).c_str());
edit->moveToAnchor(aname);
return;
}
// If next is false, the user added characters to the current
// search string. We need to reset the cursor position to the
// start of the previous match, else incremental search is going
// to look for the next occurrence instead of trying to lenghten
// the current match
if (!next) {
int ps, is, pe, ie;
edit->getSelection(&ps, &is, &pe, &ie);
if (is > 0)
is--;
else if (ps > 0)
ps--;
LOGDEB(("Preview::doSearch: setting cursor to %d %d\n", ps, is));
edit->setCursorPosition(ps, is);
}
LOGDEB(("Preview::doSearch: first find call\n"));
bool found = edit->find(text, matchCase, wordOnly, !reverse, 0, 0);
LOGDEB(("Preview::doSearch: first find call return\n"));
// If not found, try to wrap around.
if (!found && next) {
LOGDEB(("Preview::doSearch: wrapping around\n"));
int mspara, msindex;
if (reverse) {
mspara = edit->paragraphs();
msindex = edit->paragraphLength(mspara);
} else {
mspara = msindex = 0;
}
LOGDEB(("Preview::doSearch: 2nd find call\n"));
found = edit->find(text,matchCase, false, !reverse, &mspara, &msindex);
LOGDEB(("Preview::doSearch: 2nd find call return\n"));
}
if (found) {
m_canBeep = true;
} else {
if (m_canBeep)
QApplication::beep();
m_canBeep = false;
}
LOGDEB(("Preview::doSearch: return\n"));
}
void Preview::nextPressed()
{
doSearch(searchTextLine->text(), true, false);
}
void Preview::prevPressed()
{
doSearch(searchTextLine->text(), true, true);
}
// Called when user clicks on tab
void Preview::currentChanged(QWidget * tw)
{
QWidget *edit = (QWidget *)tw->child("pvEdit");
m_currentW = tw;
LOGDEB1(("Preview::currentChanged(). Editor: %p\n", edit));
if (edit == 0) {
LOGERR(("Editor child not found\n"));
return;
}
edit->setFocus();
// Connect doubleclick but cleanup first just in case this was
// already connected.
disconnect(edit, SIGNAL(doubleClicked(int, int)), this, 0);
connect(edit, SIGNAL(doubleClicked(int, int)),
this, SLOT(textDoubleClicked(int, int)));
#if (QT_VERSION >= 0x040000)
connect(edit, SIGNAL(selectionChanged()), this, SLOT(selecChanged()));
#endif
tw->installEventFilter(this);
edit->installEventFilter(this);
TabData *d = tabDataForCurrent();
if (d)
emit(previewExposed(this, m_searchId, d->docnum));
}
#if (QT_VERSION >= 0x040000)
// I have absolutely no idea why this nonsense is needed to get
// q3textedit to copy to x11 primary selection when text is
// selected. This used to be automatic, and, looking at the code, it
// should happen inside q3textedit (the code here is copied from the
// private copyToClipboard method). To be checked again with a later
// qt version.
void Preview::selecChanged()
{
LOGDEB1(("Selection changed\n"));
if (!m_currentW)
return;
QTextEditFixed *edit = (QTextEditFixed*)m_currentW->child("pvEdit");
if (edit == 0) {
LOGERR(("Editor child not found\n"));
return;
}
QClipboard *clipboard = QApplication::clipboard();
if (edit->hasSelectedText()) {
LOGDEB1(("Copying [%s] to primary selection.Clipboard sel supp: %d\n",
(const char *)edit->selectedText().ascii(),
clipboard->supportsSelection()));
disconnect(QApplication::clipboard(), SIGNAL(selectionChanged()),
edit, 0);
clipboard->setText(edit->selectedText(), QClipboard::Selection);
connect(QApplication::clipboard(), SIGNAL(selectionChanged()),
edit, SLOT(clipboardChanged()));
}
}
#else
void Preview::selecChanged(){}
#endif
void Preview::textDoubleClicked(int, int)
{
LOGDEB2(("Preview::textDoubleClicked\n"));
if (!m_currentW)
return;
QTextEditFixed *edit = (QTextEditFixed *)m_currentW->child("pvEdit");
if (edit == 0) {
LOGERR(("Editor child not found\n"));
return;
}
if (edit->hasSelectedText())
emit(wordSelect(edit->selectedText()));
}
void Preview::closeCurrentTab()
{
LOGDEB(("Preview::closeCurrentTab: m_loading %d\n", m_loading));
if (m_loading) {
CancelCheck::instance().setCancel();
return;
}
if (pvTab->count() > 1) {
QWidget *tw = pvTab->currentPage();
if (!tw)
return;
pvTab->removePage(tw);
// Have to remove from tab data list
for (list<TabData>::iterator it = m_tabData.begin();
it != m_tabData.end(); it++) {
if (it->w == tw) {
m_tabData.erase(it);
return;
}
}
} else {
close();
}
}
QTextEditFixed *Preview::addEditorTab()
{
QWidget *anon = new QWidget((QWidget *)pvTab);
QVBoxLayout *anonLayout = new QVBoxLayout(anon, 1, 1, "anonLayout");
QTextEditFixed *editor = new QTextEditFixed(anon, "pvEdit");
editor->setReadOnly(TRUE);
editor->setUndoRedoEnabled(FALSE );
anonLayout->addWidget(editor);
pvTab->addTab(anon, "Tab");
pvTab->showPage(anon);
m_tabData.push_back(TabData(anon));
return editor;
}
void Preview::setCurTabProps(const string &fn, const Rcl::Doc &doc,
int docnum)
{
QString title;
map<string,string>::const_iterator meta_it;
if ((meta_it = doc.meta.find("title")) != doc.meta.end()) {
title = QString::fromUtf8(meta_it->second.c_str(),
meta_it->second.length());
}
if (title.length() > 20) {
title = title.left(10) + "..." + title.right(10);
}
QWidget *w = pvTab->currentPage();
pvTab->changeTab(w, title);
char datebuf[100];
datebuf[0] = 0;
if (!doc.fmtime.empty() || !doc.dmtime.empty()) {
time_t mtime = doc.dmtime.empty() ?
atol(doc.fmtime.c_str()) : atol(doc.dmtime.c_str());
struct tm *tm = localtime(&mtime);
strftime(datebuf, 99, "%Y-%m-%d %H:%M:%S", tm);
}
LOGDEB(("Doc.url: [%s]\n", doc.url.c_str()));
string url;
printableUrl(doc.url, url);
string tiptxt = url + string("\n");
tiptxt += doc.mimetype + " " + string(datebuf) + "\n";
if (meta_it != doc.meta.end() && !meta_it->second.empty())
tiptxt += meta_it->second + "\n";
pvTab->setTabToolTip(w,QString::fromUtf8(tiptxt.c_str(), tiptxt.length()));
for (list<TabData>::iterator it = m_tabData.begin();
it != m_tabData.end(); it++) {
if (it->w == w) {
it->fn = fn;
it->ipath = doc.ipath;
it->docnum = docnum;
break;
}
}
}
TabData *Preview::tabDataForCurrent()
{
QWidget *w = pvTab->currentPage();
if (w == 0)
return 0;
for (list<TabData>::iterator it = m_tabData.begin();
it != m_tabData.end(); it++) {
if (it->w == w) {
return &(*it);
}
}
return 0;
}
bool Preview::makeDocCurrent(const string &fn, size_t sz,
const Rcl::Doc& doc, int docnum, bool sametab)
{
LOGDEB(("Preview::makeDocCurrent: %s\n", fn.c_str()));
for (list<TabData>::iterator it = m_tabData.begin();
it != m_tabData.end(); it++) {
LOGDEB2(("Preview::makeFileCurrent: compare to w %p, file %s\n",
it->w, it->fn.c_str()));
if (!it->fn.compare(fn) && !it->ipath.compare(doc.ipath)) {
pvTab->showPage(it->w);
return true;
}
}
// if just created the first tab was created during init
if (!sametab && !m_justCreated && !addEditorTab()) {
return false;
}
m_justCreated = false;
if (!loadFileInCurrentTab(fn, sz, doc, docnum)) {
closeCurrentTab();
return false;
}
return true;
}
/*
Code for loading a file into an editor window. The operations that
we call have no provision to indicate progression, and it would be
complicated or impossible to modify them to do so (Ie: for external
format converters).
We implement a complicated and ugly mechanism based on threads to indicate
to the user that the app is doing things: lengthy operations are done in
threads and we update a progress indicator while they proceed (but we have
no estimate of their total duration).
An auxiliary thread object is used for short waits. Another option would be
to use signals/slots and return to the event-loop instead, but this would
be even more complicated, and we probably don't want the user to click on
things during this time anyway.
It might be possible, but complicated (need modifications in
handler) to implement a kind of bucket brigade, to have the
beginning of the text displayed faster
*/
/* A thread to to the file reading / format conversion */
class LoadThread : public QThread {
int *statusp;
Rcl::Doc *out;
string filename;
string ipath;
string *mtype;
string tmpdir;
int loglevel;
public:
string missing;
LoadThread(int *stp, Rcl::Doc *odoc, string fn, string ip, string *mt)
: statusp(stp), out(odoc), filename(fn), ipath(ip), mtype(mt)
{
loglevel = DebugLog::getdbl()->getlevel();
}
~LoadThread() {
if (tmpdir.length()) {
wipedir(tmpdir);
rmdir(tmpdir.c_str());
}
}
virtual void run() {
DebugLog::getdbl()->setloglevel(loglevel);
string reason;
if (!maketmpdir(tmpdir, reason)) {
QMessageBox::critical(0, "Recoll",
Preview::tr("Cannot create temporary directory"));
LOGERR(("Preview: %s\n", reason.c_str()));
*statusp = -1;
return;
}
struct stat st;
if (stat(filename.c_str(), &st) < 0) {
LOGERR(("Preview: can't stat [%s]\n", filename.c_str()));
QMessageBox::critical(0, "Recoll",
Preview::tr("File does not exist"));
*statusp = -1;
return;
}
FileInterner interner(filename, &st, rclconfig, tmpdir, mtype);
try {
FileInterner::Status ret = interner.internfile(*out, ipath);
if (ret == FileInterner::FIDone || ret == FileInterner::FIAgain) {
// FIAgain is actually not nice here. It means that the record
// for the *file* of a multidoc was selected. Actually this
// shouldn't have had a preview link at all, but we don't know
// how to handle it now. Better to show the first doc than
// a mysterious error. Happens when the file name matches a
// a search term of course.
*statusp = 0;
} else {
out->mimetype = interner.getMimetype();
interner.getMissingExternal(missing);
*statusp = -1;
}
} catch (CancelExcept) {
*statusp = -1;
}
}
};
/* A thread to convert to rich text (mark search terms) */
class ToRichThread : public QThread {
string ∈
const HiliteData &hdata;
list<string> &out;
int loglevel;
int *lastanchor;
public:
ToRichThread(string &i, const HiliteData& hd, list<string> &o,
int *lsta)
: in(i), hdata(hd), out(o), lastanchor(lsta)
{
loglevel = DebugLog::getdbl()->getlevel();
}
virtual void run()
{
DebugLog::getdbl()->setloglevel(loglevel);
try {
plaintorich(in, out, hdata, false, lastanchor);
} catch (CancelExcept) {
}
}
};
/* A thread to implement short waiting. There must be a better way ! */
class WaiterThread : public QThread {
int ms;
public:
WaiterThread(int millis) : ms(millis) {}
virtual void run() {
msleep(ms);
}
};
#define CHUNKL 50*1000
#ifndef MIN
#define MIN(A,B) ((A)<(B)?(A):(B))
#endif
class LoadGuard {
bool *m_bp;
public:
LoadGuard(bool *bp) {m_bp = bp ; *m_bp = true;}
~LoadGuard() {*m_bp = false; CancelCheck::instance().setCancel(false);}
};
bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
int docnum)
{
if (m_loading) {
LOGERR(("ALready loading\n"));
return false;
}
LoadGuard guard(&m_loading);
CancelCheck::instance().setCancel(false);
m_haveAnchors = false;
Rcl::Doc doc = idoc;
if (doc.meta["title"].empty())
doc.meta["title"] = path_getsimple(doc.url);
setCurTabProps(fn, doc, docnum);
char csz[20];
sprintf(csz, "%lu", (unsigned long)sz);
QString msg = QString("Loading: %1 (size %2 bytes)")
.arg(QString::fromLocal8Bit(fn.c_str()))
.arg(csz);
// Create progress dialog and aux objects
const int nsteps = 20;
QProgressDialog progress(msg, tr("Cancel"), nsteps, this, "Loading", FALSE);
progress.setMinimumDuration(2000);
WaiterThread waiter(100);
// Load and convert file
Rcl::Doc fdoc;
// Need to setup config to retrieve possibly local parameters
rclconfig->setKeyDir(path_getfather(fn));
int status = 1;
LoadThread lthr(&status, &fdoc, fn, doc.ipath, &doc.mimetype);
lthr.start();
int prog;
for (prog = 1;;prog++) {
waiter.start();
waiter.wait();
if (lthr.THRFINISHED ())
break;
progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
qApp->processEvents();
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
}
if (prog >= 5)
sleep(1);
}
LOGDEB(("LoadFileInCurrentTab: after file load: cancel %d status %d"
" text length %d\n",
CancelCheck::instance().cancelState(), status, fdoc.text.length()));
if (CancelCheck::instance().cancelState())
return false;
if (status != 0) {
QString explain;
if (!lthr.missing.empty()) {
explain = QString::fromAscii("<br>") +
tr("Missing helper program: ") +
QString::fromLocal8Bit(lthr.missing.c_str());
}
QMessageBox::warning(0, "Recoll",
tr("Can't turn doc into internal "
"representation for ") +
fdoc.mimetype.c_str() + explain);
return false;
}
// Reset config just in case.
rclconfig->setKeyDir("");
// Create preview text: highlight search terms
// We don't do the highlighting for very big texts: too long. We
// should at least do special char escaping, in case a '&' or '<'
// somehow slipped through previous processing.
bool highlightTerms = fdoc.text.length() <
(unsigned long)prefs.maxhltextmbs * 1024 * 1024;
// Final text is produced in chunks so that we can display the top
// while still inserting at bottom
list<QString> qrichlst;
if (highlightTerms) {
progress.setLabelText(tr("Creating preview text"));
qApp->processEvents();
list<string> richlst;
ToRichThread rthr(fdoc.text, m_hData, richlst, &m_lastAnchor);
rthr.start();
for (;;prog++) {
waiter.start(); waiter.wait();
if (rthr.THRFINISHED ())
break;
progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
qApp->processEvents();
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
}
if (prog >= 5)
sleep(1);
}
// Conversion to rich text done
if (CancelCheck::instance().cancelState()) {
if (richlst.size() == 0 || richlst.front().length() == 0) {
// We cant call closeCurrentTab here as it might delete
// the object which would be a nasty surprise to our
// caller.
return false;
} else {
richlst.back() += "<b>Cancelled !</b>";
}
}
// Convert to QString list
for (list<string>::iterator it = richlst.begin();
it != richlst.end(); it++) {
qrichlst.push_back(QString::fromUtf8(it->c_str(), it->length()));
}
} else {
// No plaintorich() call.
// In this case, the text will no be identified as
// richtxt/html (no <html> or <qt> etc. at the beginning), and
// there is no need to escape special characters.
// Also we need to split in chunks (so that the top is displayed faster),
// and we must do it on a QString (to avoid utf8 issues).
QString qr = QString::fromUtf8(fdoc.text.c_str(), fdoc.text.length());
int l = 0;
for (int pos = 0; pos < (int)qr.length(); pos += l) {
l = MIN(CHUNKL, qr.length() - pos);
qrichlst.push_back(qr.mid(pos, l));
}
}
// Load into editor
QTextEditFixed *editor = getCurrentEditor();
editor->setText("");
if (highlightTerms) {
QStyleSheetItem *item =
new QStyleSheetItem(editor->styleSheet(), "termtag" );
item->setColor("blue");
item->setFontWeight(QFont::Bold);
}
prog = 2 * nsteps / 3;
progress.setLabelText(tr("Loading preview text into editor"));
qApp->processEvents();
int instep = 0;
for (list<QString>::iterator it = qrichlst.begin();
it != qrichlst.end(); it++, prog++, instep++) {
progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
qApp->processEvents();
editor->append(*it);
// Stay at top
if (instep < 5) {
editor->setCursorPosition(0,0);
editor->ensureCursorVisible();
}
if (progress.wasCanceled()) {
editor->append("<b>Cancelled !</b>");
LOGDEB(("LoadFileInCurrentTab: cancelled in editor load\n"));
break;
}
}
progress.close();
m_haveAnchors = m_lastAnchor != 0;
if (searchTextLine->text().length() != 0) {
// If there is a current search string, perform the search
m_canBeep = true;
doSearch(searchTextLine->text(), true, false);
} else {
// Position to the first query term
if (m_haveAnchors) {
QString aname = QString::fromUtf8(termAnchorName(1).c_str());
LOGDEB2(("Call movetoanchor(%s)\n", (const char *)aname.utf8()));
editor->moveToAnchor(aname);
m_curAnchor = 1;
}
}
// Enter document in document history
g_dynconf->enterDoc(fn, doc.ipath);
editor->setFocus();
emit(previewExposed(this, m_searchId, docnum));
LOGDEB(("LoadFileInCurrentTab: returning true\n"));
return true;
}