recoll / Code / Diff of /src/qtgui/preview

Diff of /src/qtgui/preview_w.cpp [e6c082] .. [595457]

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#ifndef lint
static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.28 2007-10-18 10:39:41 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
...
#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>
...

/* A thread to convert to rich text (mark search terms) */
class ToRichThread : public QThread {
    string &in;
    const HiliteData &hdata;
    list<string> &out;
    int loglevel;
 public:
    ToRichThread(string &i, const HiliteData& hd, list<string> &o) 
    : in(i), hdata(hd), out(o)
    {
        loglevel = DebugLog::getdbl()->getlevel();
    }
    virtual void run()
    {
    DebugLog::getdbl()->setloglevel(loglevel);

    try {
        plaintorich(in, out, hdata, false, true);
    } catch (CancelExcept) {
    }

    }
};

/* A thread to implement short waiting. There must be a better way ! */
class WaiterThread : public QThread {
...
    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();
    }
...
    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);
    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();
        }
...
        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

    QTextEdit *editor = getCurrentEditor();
    editor->setText("");
    if (highlightTerms) {
    QStyleSheetItem *item = 
        new QStyleSheetItem(editor->styleSheet(), "termtag" );
...
    }

    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();
  if (it->find(QString::fromUtf8(firstTermBeacon)) != -1) 
      m_haveAnchors = true;

  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();

    if (searchTextLine->text().length() != 0) {
    // If there is a current search string, perform the search
    m_canBeep = true;

	a/src/qtgui/preview_w.cpp		b/src/qtgui/preview_w.cpp
1	#ifndef lint	1	#ifndef lint
2	static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.27 2007-09-08 17:25:49 dockes Exp $ (C) 2005 J.F.Dockes";	2	static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.28 2007-10-18 10:39:41 dockes Exp $ (C) 2005 J.F.Dockes";
3	#endif	3	#endif
4	/*	4	/*
5	* This program is free software; you can redistribute it and/or modify	5	* This program is free software; you can redistribute it and/or modify
6	* it under the terms of the GNU General Public License as published by	6	* it under the terms of the GNU General Public License as published by
7	* the Free Software Foundation; either version 2 of the License, or	7	* the Free Software Foundation; either version 2 of the License, or
	...		...
33	#include <qpushbutton.h>	33	#include <qpushbutton.h>
34	#include <qtabwidget.h>	34	#include <qtabwidget.h>
35	#if (QT_VERSION < 0x040000)	35	#if (QT_VERSION < 0x040000)
36	#include <qtextedit.h>	36	#include <qtextedit.h>
37	#include <qprogressdialog.h>	37	#include <qprogressdialog.h>
		38	#define THRFINISHED finished
38	#else	39	#else
39	#include <q3textedit.h>	40	#include <q3textedit.h>
40	#include <q3progressdialog.h>	41	#include <q3progressdialog.h>
41	#include <q3stylesheet.h>	42	#include <q3stylesheet.h>
		43	#define THRFINISHED isFinished
42	#endif	44	#endif
43	#include <qevent.h>	45	#include <qevent.h>
44	#include <qlabel.h>	46	#include <qlabel.h>
45	#include <qlineedit.h>	47	#include <qlineedit.h>
46	#include <qcheckbox.h>	48	#include <qcheckbox.h>
	...		...
579		581
580	/* A thread to convert to rich text (mark search terms) */	582	/* A thread to convert to rich text (mark search terms) */
581	class ToRichThread : public QThread {	583	class ToRichThread : public QThread {
582	string &in;	584	string &in;
583	const HiliteData &hdata;	585	const HiliteData &hdata;
584	QString &out;	586	list<string> &out;
585	int loglevel;	587	int loglevel;
586	public:	588	public:
587	ToRichThread(string &i, const HiliteData& hd, QString &o)	589	ToRichThread(string &i, const HiliteData& hd, list<string> &o)
588	: in(i), hdata(hd), out(o)	590	: in(i), hdata(hd), out(o)
589	{	591	{
590	loglevel = DebugLog::getdbl()->getlevel();	592	loglevel = DebugLog::getdbl()->getlevel();
591	}	593	}
592	virtual void run()	594	virtual void run()
593	{	595	{
594	DebugLog::getdbl()->setloglevel(loglevel);	596	DebugLog::getdbl()->setloglevel(loglevel);
595	string rich;
596	try {	597	try {
597	plaintorich(in, rich, hdata, false, true);	598	plaintorich(in, out, hdata, false, true);
598	} catch (CancelExcept) {	599	} catch (CancelExcept) {
599	}	600	}
600	out = QString::fromUtf8(rich.c_str(), rich.length());
601	}	601	}
602	};	602	};
603		603
604	/* A thread to implement short waiting. There must be a better way ! */	604	/* A thread to implement short waiting. There must be a better way ! */
605	class WaiterThread : public QThread {	605	class WaiterThread : public QThread {
	...		...
663	lthr.start();	663	lthr.start();
664	int prog;	664	int prog;
665	for (prog = 1;;prog++) {	665	for (prog = 1;;prog++) {
666	waiter.start();	666	waiter.start();
667	waiter.wait();	667	waiter.wait();
668	#if (QT_VERSION < 0x040000)	668	if (lthr.THRFINISHED ())
669	if (lthr.finished())
670	break;	669	break;
671	#else
672	if (lthr.isFinished())
673	break;
674	#endif
675	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);	670	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
676	qApp->processEvents();	671	qApp->processEvents();
677	if (progress.wasCanceled()) {	672	if (progress.wasCanceled()) {
678	CancelCheck::instance().setCancel();	673	CancelCheck::instance().setCancel();
679	}	674	}
	...		...
701	return false;	696	return false;
702	}	697	}
703	// Reset config just in case.	698	// Reset config just in case.
704	rclconfig->setKeyDir("");	699	rclconfig->setKeyDir("");
705		700
706	// Create preview text: highlight search terms (if not too big):	701	// Create preview text: highlight search terms
707	QString richTxt;
708
709	// We don't do the highlighting for very big texts: too long. We	702	// We don't do the highlighting for very big texts: too long. We
710	// should at least do special char escaping, in case a '&' or '<'	703	// should at least do special char escaping, in case a '&' or '<'
711	// somehow slipped through previous processing.	704	// somehow slipped through previous processing.
712	bool highlightTerms = fdoc.text.length() < (unsigned long)prefs.maxhltextmbs * 1024 * 1024;	705	bool highlightTerms = fdoc.text.length() <
713	int beaconPos = -1;	706	(unsigned long)prefs.maxhltextmbs * 1024 * 1024;
		707	// Final text is produced in chunks so that we can display the top
		708	// while still inserting at bottom
		709	list<QString> qrichlst;
		710
714	if (highlightTerms) {	711	if (highlightTerms) {
715	progress.setLabelText(tr("Creating preview text"));	712	progress.setLabelText(tr("Creating preview text"));
716	qApp->processEvents();	713	qApp->processEvents();
		714	list<string> richlst;
717	ToRichThread rthr(fdoc.text, m_hData, richTxt);	715	ToRichThread rthr(fdoc.text, m_hData, richlst);
718	rthr.start();	716	rthr.start();
719		717
720	for (;;prog++) {	718	for (;;prog++) {
721	waiter.start(); waiter.wait();	719	waiter.start(); waiter.wait();
722	#if (QT_VERSION < 0x040000)	720	if (rthr.THRFINISHED ())
723	if (rthr.finished())
724	break;	721	break;
725	#else
726	if (rthr.isFinished())
727	break;
728	#endif
729	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);	722	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
730	qApp->processEvents();	723	qApp->processEvents();
731	if (progress.wasCanceled()) {	724	if (progress.wasCanceled()) {
732	CancelCheck::instance().setCancel();	725	CancelCheck::instance().setCancel();
733	}	726	}
	...		...
735	sleep(1);	728	sleep(1);
736	}	729	}
737		730
738	// Conversion to rich text done	731	// Conversion to rich text done
739	if (CancelCheck::instance().cancelState()) {	732	if (CancelCheck::instance().cancelState()) {
740	if (richTxt.length() == 0) {	733	if (richlst.size() == 0 \|\| richlst.front().length() == 0) {
741	// We cant call closeCurrentTab here as it might delete	734	// We cant call closeCurrentTab here as it might delete
742	// the object which would be a nasty surprise to our	735	// the object which would be a nasty surprise to our
743	// caller.	736	// caller.
744	return false;	737	return false;
745	} else {	738	} else {
746	richTxt += "<b>Cancelled !</b>";	739	richlst.back() += "<b>Cancelled !</b>";
747	}	740	}
748	}	741	}
749	beaconPos = richTxt.find(QString::fromUtf8(firstTermBeacon));	742	// Convert to QString list
		743	for (list<string>::iterator it = richlst.begin();
		744	it != richlst.end(); it++) {
		745	qrichlst.push_back(QString::fromUtf8(it->c_str(), it->length()));
		746	}
750	} else {	747	} else {
751	// Note that in the case were we don't call plaintorich, the	748	// No plaintorich() call.
752	// text will no be identified as richtxt/html (no <html> or	749	// In this case, the text will no be identified as
753	// <qt> etc. at the beginning), and there is no need to escape	750	// richtxt/html (no <html> or <qt> etc. at the beginning), and
754	// special characters	751	// there is no need to escape special characters.
		752	// Also we need to split in chunks (so that the top is displayed faster),
		753	// and we must do it on a QString (to avoid utf8 issues).
755	richTxt = QString::fromUtf8(fdoc.text.c_str(), fdoc.text.length());	754	QString qr = QString::fromUtf8(fdoc.text.c_str(), fdoc.text.length());
		755	int l = 0;
		756	for (int pos = 0; pos < (int)qr.length(); pos += l) {
		757	l = MIN(CHUNKL, qr.length() - pos);
		758	qrichlst.push_back(qr.mid(pos, l));
		759	}
756	}	760	}
757		761
758	m_haveAnchors = (beaconPos != -1);
759	LOGDEB(("LoadFileInCurrentTab: rich: cancel %d txtln %d, hasAnchors %d "
760	"(beaconPos %d)\n",
761	CancelCheck::instance().cancelState(), richTxt.length(),
762	m_haveAnchors, beaconPos));
763
764	// Load into editor	762	// Load into editor
765	// Do it in several chunks
766	QTextEdit *editor = getCurrentEditor();	763	QTextEdit *editor = getCurrentEditor();
767	editor->setText("");	764	editor->setText("");
768	if (highlightTerms) {	765	if (highlightTerms) {
769	QStyleSheetItem *item =	766	QStyleSheetItem *item =
770	new QStyleSheetItem(editor->styleSheet(), "termtag" );	767	new QStyleSheetItem(editor->styleSheet(), "termtag" );
	...		...
773	}	770	}
774		771
775	prog = 2 * nsteps / 3;	772	prog = 2 * nsteps / 3;
776	progress.setLabelText(tr("Loading preview text into editor"));	773	progress.setLabelText(tr("Loading preview text into editor"));
777	qApp->processEvents();	774	qApp->processEvents();
778	int l = 0;	775	int instep = 0;
779	for (int pos = 0; pos < (int)richTxt.length(); pos += l, prog++) {	776	for (list<QString>::iterator it = qrichlst.begin();
		777	it != qrichlst.end(); it++, prog++, instep++) {
780	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);	778	progress.setProgress(prog , prog <= nsteps-1 ? nsteps : prog+1);
781	qApp->processEvents();	779	qApp->processEvents();
782		780	if (it->find(QString::fromUtf8(firstTermBeacon)) != -1)
783	l = MIN(CHUNKL, richTxt.length() - pos);	781	m_haveAnchors = true;
784	// Avoid breaking inside a tag. Our tags are short (ie: <br>)	782
785	if (pos + l != (int)richTxt.length()) {	783	editor->append(*it);
786	for (int i = -15; i < 0; i++) {	784
787	if (richTxt[pos+l+i] == '<') {
788	l = l+i;
789	break;
790	}
791	}
792	}
793	editor->append(richTxt.mid(pos, l));
794	// Stay at top	785	// Stay at top
795	if (pos < 5) {	786	if (instep < 5) {
796	editor->setCursorPosition(0,0);	787	editor->setCursorPosition(0,0);
797	editor->ensureCursorVisible();	788	editor->ensureCursorVisible();
798	}	789	}
799		790
800	if (progress.wasCanceled()) {	791	if (progress.wasCanceled()) {
801	editor->append("<b>Cancelled !</b>");	792	editor->append("<b>Cancelled !</b>");
802	LOGDEB(("LoadFileInCurrentTab: cancelled in editor load\n"));	793	LOGDEB(("LoadFileInCurrentTab: cancelled in editor load\n"));
803	break;	794	break;
804	}	795	}
805	}	796	}
		797
		798
806	progress.close();	799	progress.close();
807		800
808	if (searchTextLine->text().length() != 0) {	801	if (searchTextLine->text().length() != 0) {
809	// If there is a current search string, perform the search	802	// If there is a current search string, perform the search
810	m_canBeep = true;	803	m_canBeep = true;