/* Copyright (C) 2014 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 <stdio.h>
#include <string>
#include <QString>
#include <QStringList>
#include "preview_plaintorich.h"
#include "plaintorich.h"
#include "log.h"
#include "guiutils.h"
#include "cancelcheck.h"
using namespace std;
PlainToRichQtPreview::PlainToRichQtPreview()
{
clear();
}
void PlainToRichQtPreview::clear()
{
m_curanchor = 1;
m_lastanchor = 0;
m_groupanchors.clear();
m_groupcuranchors.clear();
}
bool PlainToRichQtPreview::haveAnchors()
{
return m_lastanchor != 0;
}
string PlainToRichQtPreview::PlainToRichQtPreview::header()
{
if (!m_inputhtml) {
switch (prefs.previewPlainPre) {
case PrefsPack::PP_BR:
m_eolbr = true;
return "<qt><head><title></title></head><body>";
case PrefsPack::PP_PRE:
m_eolbr = false;
return "<qt><head><title></title></head><body><pre>";
case PrefsPack::PP_PREWRAP:
m_eolbr = false;
return "<qt><head><title></title></head><body>"
"<pre style=\"white-space: pre-wrap\">";
}
}
return cstr_null;
}
string PlainToRichQtPreview::startMatch(unsigned int grpidx)
{
LOGDEB2("startMatch, grpidx " << (grpidx) << "\n" );
grpidx = m_hdata->grpsugidx[grpidx];
LOGDEB2("startMatch, ugrpidx " << (grpidx) << "\n" );
m_groupanchors[grpidx].push_back(++m_lastanchor);
m_groupcuranchors[grpidx] = 0;
return string("<span style='color: ").
append((const char *)(prefs.qtermcolor.toUtf8())).
append(";font-weight: bold;").
append("'>").
append("<a name=\"").
append(termAnchorName(m_lastanchor)).
append("\">");
}
string PlainToRichQtPreview::endMatch()
{
return string("</a></span>");
}
string PlainToRichQtPreview::termAnchorName(int i) const
{
static const char *termAnchorNameBase = "TRM";
char acname[sizeof(termAnchorNameBase) + 20];
sprintf(acname, "%s%d", termAnchorNameBase, i);
return string(acname);
}
string PlainToRichQtPreview::startChunk()
{
return "<pre>";
}
int PlainToRichQtPreview::nextAnchorNum(int grpidx)
{
LOGDEB2("nextAnchorNum: group " << (grpidx) << "\n" );
map<unsigned int, unsigned int>::iterator curit =
m_groupcuranchors.find(grpidx);
map<unsigned int, vector<int> >::iterator vecit =
m_groupanchors.find(grpidx);
if (grpidx == -1 || curit == m_groupcuranchors.end() ||
vecit == m_groupanchors.end()) {
if (m_curanchor >= m_lastanchor)
m_curanchor = 1;
else
m_curanchor++;
} else {
if (curit->second >= vecit->second.size() -1)
m_groupcuranchors[grpidx] = 0;
else
m_groupcuranchors[grpidx]++;
m_curanchor = vecit->second[m_groupcuranchors[grpidx]];
LOGDEB2("nextAnchorNum: curanchor now " << (m_curanchor) << "\n" );
}
return m_curanchor;
}
int PlainToRichQtPreview::prevAnchorNum(int grpidx)
{
map<unsigned int, unsigned int>::iterator curit =
m_groupcuranchors.find(grpidx);
map<unsigned int, vector<int> >::iterator vecit =
m_groupanchors.find(grpidx);
if (grpidx == -1 || curit == m_groupcuranchors.end() ||
vecit == m_groupanchors.end()) {
if (m_curanchor <= 1)
m_curanchor = m_lastanchor;
else
m_curanchor--;
} else {
if (curit->second <= 0)
m_groupcuranchors[grpidx] = vecit->second.size() -1;
else
m_groupcuranchors[grpidx]--;
m_curanchor = vecit->second[m_groupcuranchors[grpidx]];
}
return m_curanchor;
}
QString PlainToRichQtPreview::curAnchorName() const
{
return QString::fromUtf8(termAnchorName(m_curanchor).c_str());
}
ToRichThread::ToRichThread(const string &i, const HighlightData& hd,
std::shared_ptr<PlainToRichQtPreview> ptr,
QStringList& qrichlist,
QObject *parent)
: QThread(parent), m_input(i), m_hdata(hd), m_ptr(ptr), m_output(qrichlist)
{
}
// Insert into editor by chunks so that the top becomes visible
// earlier for big texts. This provokes some artifacts (adds empty line),
// so we can't set it too low.
#define CHUNKL 500*1000
void ToRichThread::run()
{
list<string> out;
try {
m_ptr->plaintorich(m_input, out, m_hdata, CHUNKL);
} catch (CancelExcept) {
return;
}
// Convert C++ string list to QString list
for (list<string>::iterator it = out.begin();
it != out.end(); it++) {
m_output.push_back(QString::fromUtf8(it->c_str(), it->length()));
}
}