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document.cpp
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/***************************************************************************
* 2007-2023 by Peter Semiletov *
* *
* 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 3 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. *
**************************************************************************/
/* some code by
Copyright (C) 2006-2008 Trolltech ASA. All rights reserved.
*/
/*
code from qPEditor:
Copyright (C) 2007 by Michael Protasov, [email protected]
*/
/*
Diego Iastrubni <[email protected]> //some GPL'ed code from new-editor-diego-3,
found on qtcentre forum
*/
/*
code from qwriter:
* Copyright (C) 2009 by Gancov Kostya *
*/
#include <bitset>
#include <algorithm>
#include <QTextCodec>
#include <QApplication>
#include <QClipboard>
#include <QSettings>
#include <QLabel>
#include <QPainter>
#include <QDebug>
#include <QUrl>
#include <QDir>
#include <QMimeData>
#include <QFile>
#include <QMessageBox>
#include <QTimer>
#include "document.h"
#include "utils.h"
#include "gui_utils.h"
#include "pugixml.hpp"
#define SK_A 38
#define SK_D 40
#define SK_W 25
#define SK_S 39
#define SK_E 26
#define SK_C 54
QHash <QString, QString> global_palette;
QSettings *settings;
QMenu *menu_current_files;
int recent_list_max_items;
bool b_recent_off;
bool b_destroying_all;
QStringList text_get_bookmarks (const QString &s, const QString &sstart, const QString &send)
{
QStringList result;
int c = s.size();
int i = 0;
while (i < c)
{
int start = s.indexOf (sstart, i, Qt::CaseInsensitive);
if (start == -1)
break;
int end = s.indexOf (send, start + sstart.length());
if (end == -1)
break;
result.prepend (s.mid (start + sstart.length(), (end - start) - send.length()));
i = end + 1;
}
return result;
}
QTextCharFormat tformat_from_style (const QString &fontstyle, const QString &color, int darker_val)
{
QTextCharFormat tformat;
tformat.setForeground (QBrush (QColor (color).darker (darker_val)));
if (fontstyle.isEmpty())
return tformat;
if (fontstyle.contains ("bold"))
tformat.setFontWeight (QFont::Bold);
if (fontstyle.contains ("italic"))
tformat.setFontItalic (true);
if (fontstyle.contains ("underline"))
tformat.setFontUnderline (true);
if (fontstyle.contains ("strikeout"))
tformat.setFontStrikeOut (true);
return tformat;
}
CSyntaxHighlighter::CSyntaxHighlighter (QTextDocument *parent, CDocument *doc, const QString &fname): QSyntaxHighlighter (parent)
{
document = doc;
casecare = true;
}
#if QT_VERSION < 0x050000
CSyntaxHighlighterQRegExp::CSyntaxHighlighterQRegExp (QTextDocument *parent, CDocument *doc, const QString &fname):
CSyntaxHighlighter (parent, doc, fname)
{
document = doc;
load_from_xml_pugi (fname);
}
/*
void CSyntaxHighlighterQRegExp::load_from_xml (const QString &fname)
{
if (! file_exists (fname))
return;
cs = Qt::CaseSensitive;
comment_start_expr = make_pair (QRegExp(), false);
comment_end_expr = make_pair (QRegExp(), false);
QString temp = qstring_load (fname);
if (temp.isEmpty())
return;
int darker_val = settings->value ("darker_val", 100).toInt();
QXmlStreamReader xml (temp);
while (! xml.atEnd())
{
xml.readNext();
QString tag_name = xml.name().toString().toLower();
if (xml.isStartElement())
{
//if (tag_name == "document")
// {
// exts = xml.attributes().value ("exts").toString();
// langs = xml.attributes().value ("langs").toString();
// }
if (tag_name == "item")
{
QString attr_type = xml.attributes().value ("type").toString();
QString attr_name = xml.attributes().value ("name").toString();
if (attr_name == "options")
{
QString s_casecare = xml.attributes().value ("casecare").toString();
if (! s_casecare.isEmpty())
if (s_casecare == "0" || s_casecare == "false")
casecare = false;
if (! casecare)
cs = Qt::CaseInsensitive;
}
if (attr_type == "keywords")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "darkBlue");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegExp rg (element, cs);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl_rules.push_back (make_pair (rg, fmt));
} //keywords
else
if (attr_type == "item")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "darkBlue");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegExp rg (element, cs);
if (rg.isValid())
hl_rules.push_back (make_pair (rg, fmt));
}
else
if (attr_type == "mcomment-start")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "gray");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
fmt_multi_line_comment = fmt;
QString element = xml.readElementText().trimmed().remove('\n');
if (! element.isEmpty())
//commentStartExpression = QRegExp (element, cs, QRegExp::RegExp);
{
comment_start_expr.first = QRegExp (element, cs, QRegExp::RegExp);
comment_start_expr.second = true;
}
}
else
if (attr_type == "mcomment-end")
{
QString element = xml.readElementText().trimmed().remove('\n');
if (! element.isEmpty())
//commentEndExpression = QRegExp (element, cs, QRegExp::RegExp);
{
comment_end_expr.first = QRegExp (element, cs, QRegExp::RegExp);
comment_end_expr.second = true;
}
}
else
if (attr_type == "comment")
{
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
if (xml.attributes().value ("name").toString() == "cm_mult")
comment_mult = element;
else
if (xml.attributes().value ("name").toString() == "cm_single")
comment_single = element;
}
}//item
}//is start
if (xml.hasError())
qDebug() << "xml parse error";
} //cycle
}
*/
void CSyntaxHighlighterQRegExp::highlightBlock (const QString &text)
{
if (hl_rules.size() == 0)
return;
/*
for (auto &p: hl_rules)
{
int index = text.indexOf (p.first);
while (index >= 0)
{
int length = p.first.matchedLength();
if (length == 0)
continue;
setFormat (index, length, p.second);
index = text.indexOf (p.first, index + length);
}
}*/
for (vector <pair <QRegExp, QTextCharFormat> >::iterator p = hl_rules.begin(); p != hl_rules.end(); ++p)
{
int index = text.indexOf (p->first);
while (index >= 0)
{
int length = p->first.matchedLength();
if (length == 0)
continue;
setFormat (index, length, p->second);
index = text.indexOf (p->first, index + length);
}
}
if (! comment_start_expr.second && ! comment_end_expr.second)
return;
setCurrentBlockState (0);
int startIndex = 0;
//if (commentStartExpression.isEmpty() || commentEndExpression.isEmpty())
// return;
if (previousBlockState() != 1)
startIndex = text.indexOf (comment_start_expr.first);
while (startIndex >= 0)
{
int endIndex = comment_end_expr.first.indexIn (text, startIndex);
int commentLength;
if (endIndex == -1)
{
setCurrentBlockState (1);
commentLength = text.length() - startIndex;
}
else
commentLength = endIndex - startIndex + comment_end_expr.first.matchedLength();
setFormat (startIndex, commentLength, fmt_multi_line_comment);
startIndex = text.indexOf (comment_start_expr.first, startIndex + commentLength);
}
}
class CXMLHL_walker: public pugi::xml_tree_walker
{
public:
CSyntaxHighlighterQRegExp *hl;
int darker_val;
bool for_each (pugi::xml_node& node);
};
bool CXMLHL_walker::for_each (pugi::xml_node &node)
{
if (node.type() != pugi::node_element)
return true;
QString tag_name = node.name();
if (tag_name == "item")
{
pugi::xml_attribute attr = node.attribute ("type");
QString attr_type = attr.as_string();
attr = node.attribute ("name");
QString attr_name = attr.as_string();
if (attr_name == "options")
{
attr = node.attribute ("casecare");
QString s_casecare = attr.as_string();
if (! s_casecare.isEmpty())
if (s_casecare == "0" || s_casecare == "false")
hl->casecare = false;
if (! hl->casecare)
hl->cs = Qt::CaseInsensitive;
}
if (attr_type == "keywords")
{
attr = node.attribute ("color");
QString color = hash_get_val (global_palette, attr.as_string(), "darkBlue");
attr = node.attribute ("fontstyle");
QTextCharFormat fmt = tformat_from_style (attr.as_string(), color, darker_val);
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegExp rg (element, hl->cs);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl->hl_rules.push_back (make_pair (rg, fmt));
} //keywords
else
if (attr_type == "item")
{
attr = node.attribute ("color");
QString color = hash_get_val (global_palette, attr.as_string(), "darkBlue");
attr = node.attribute ("fontstyle");
QTextCharFormat fmt = tformat_from_style (attr.as_string(), color, darker_val);
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegExp rg (element, hl->cs);
if (rg.isValid())
hl->hl_rules.push_back (make_pair (rg, fmt));
}
else
if (attr_type == "mcomment-start")
{
attr = node.attribute ("color");
QString color = hash_get_val (global_palette, attr.as_string(), "gray");
attr = node.attribute ("fontstyle");
QString fontstyle = attr.as_string();
QTextCharFormat fmt = tformat_from_style (fontstyle, color, darker_val);
hl->fmt_multi_line_comment = fmt;
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
if (! element.isEmpty())
{
hl->comment_start_expr.first = QRegExp (element, hl->cs, QRegExp::RegExp);
hl->comment_start_expr.second = true;
}
}
else
if (attr_type == "mcomment-end")
{
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
if (! element.isEmpty())
{
hl->comment_end_expr.first = QRegExp (element, hl->cs, QRegExp::RegExp);
hl->comment_end_expr.second = true;
}
}
else
if (attr_type == "comment")
{
attr = node.attribute ("name");
QString name = attr.as_string();
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
if (name == "cm_mult")
hl->comment_mult = element;
else
if (name == "cm_single")
hl->comment_single = element;
}
}//item
return true;
}
void CSyntaxHighlighterQRegExp::load_from_xml_pugi (const QString &fname)
{
if (! file_exists (fname))
return;
cs = Qt::CaseSensitive;
comment_start_expr = make_pair (QRegExp(), false);
comment_end_expr = make_pair (QRegExp(), false);
QString temp = qstring_load (fname);
if (temp.isEmpty())
return;
int darker_val = settings->value ("darker_val", 100).toInt();
pugi::xml_document doc;
pugi::xml_parse_result result = doc.load_buffer (temp.utf16(),
temp.size() * 2,
pugi::parse_default,
pugi::encoding_utf16);
//pugi::xml_parse_result result = doc.load_buffer (temp.toUtf8().data(),
// temp.toUtf8().size());
if (! result)
return;
CXMLHL_walker walker;
walker.darker_val = darker_val;
walker.hl = this;
doc.traverse (walker);
}
#endif
#if QT_VERSION >= 0x050000
CSyntaxHighlighterQRegularExpression::CSyntaxHighlighterQRegularExpression (QTextDocument *parent, CDocument *doc, const QString &fname):
CSyntaxHighlighter (parent, doc, fname)
{
document = doc;
load_from_xml_pugi (fname);
}
/*
void CSyntaxHighlighterQRegularExpression::load_from_xml (const QString &fname)
{
if (! file_exists (fname))
return;
casecare = true;
comment_start_expr = make_pair (QRegularExpression(), false);
comment_end_expr = make_pair (QRegularExpression(), false);
QString temp = qstring_load (fname);
if (temp.isEmpty())
return;
int darker_val = settings->value ("darker_val", 100).toInt();
QXmlStreamReader xml (temp);
while (! xml.atEnd())
{
xml.readNext();
QString tag_name = xml.name().toString().toLower();
if (xml.isStartElement())
{
if (tag_name == "item")
{
QString attr_type = xml.attributes().value ("type").toString();
QString attr_name = xml.attributes().value ("name").toString();
if (attr_name == "options")
{
QString s_casecare = xml.attributes().value ("casecare").toString();
if (! s_casecare.isEmpty())
if (s_casecare == "0" || s_casecare == "false")
casecare = false;
if (! casecare)
pattern_opts = pattern_opts | QRegularExpression::CaseInsensitiveOption;
}
if (attr_type == "keywords")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "darkBlue");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegularExpression rg = QRegularExpression (element, pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl_rules.push_back (make_pair (rg, fmt));
} //keywords
else
if (attr_type == "item")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "darkBlue");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegularExpression rg = QRegularExpression (element, pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl_rules.push_back (make_pair (rg, fmt));
}
else
if (attr_type == "mcomment-start")
{
QString color = hash_get_val (global_palette, xml.attributes().value ("color").toString(), "gray");
QTextCharFormat fmt = tformat_from_style (xml.attributes().value ("fontstyle").toString(), color, darker_val);
fmt_multi_line_comment = fmt;
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegularExpression rg = QRegularExpression (element, pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
{
comment_start_expr.first = rg;
comment_start_expr.second = true;
}
}
else
if (attr_type == "mcomment-end")
{
QString element = xml.readElementText().trimmed().remove('\n');
if (element.isEmpty())
continue;
QRegularExpression rg = QRegularExpression (element, pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
{
comment_end_expr.first = rg;
comment_end_expr.second = true;
}
}
else
if (attr_type == "comment")
{
if (xml.attributes().value ("name").toString() == "cm_mult")
comment_mult = xml.readElementText().trimmed();
else
if (xml.attributes().value ("name").toString() == "cm_single")
comment_single = xml.readElementText().trimmed();
}
}//item
}//end of "is start"
if (xml.hasError())
qDebug() << "xml parse error";
} //cycle
}
*/
class CXMLHL_walker: public pugi::xml_tree_walker
{
public:
CSyntaxHighlighterQRegularExpression *hl;
int darker_val;
bool for_each (pugi::xml_node& node);
};
bool CXMLHL_walker::for_each (pugi::xml_node &node)
{
if (node.type() != pugi::node_element)
return true;
// std::cout << "for_each name = " << node.name() << std::endl;
QString tag_name = node.name();
if (tag_name == "item")
{
pugi::xml_attribute attr = node.attribute ("type");
QString attr_type = attr.as_string();
attr = node.attribute ("name");
QString attr_name = attr.as_string();
if (attr_name == "options")
{
// attr = node.attribute ("casecare");
QString s_casecare = node.attribute ("casecare").as_string();
if (! s_casecare.isEmpty())
if (s_casecare == "0" || s_casecare == "false")
hl->casecare = false;
if (! hl->casecare)
hl->pattern_opts = hl->pattern_opts | QRegularExpression::CaseInsensitiveOption;
}
if (attr_type == "keywords")
{
//attr = node.attribute ("color");
QString color = hash_get_val (global_palette, node.attribute ("color").as_string(), "darkBlue");
//attr = node.attribute ("fontstyle");
QTextCharFormat fmt = tformat_from_style (node.attribute ("fontstyle").as_string(), color, darker_val);
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegularExpression rg = QRegularExpression (element, hl->pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl->hl_rules.push_back (make_pair (rg, fmt));
} //keywords
else
if (attr_type == "item")
{
// attr = node.attribute ("color");
QString color = hash_get_val (global_palette, node.attribute ("color").as_string(), "darkBlue");
// attr = node.attribute ("fontstyle");
QTextCharFormat fmt = tformat_from_style (node.attribute ("fontstyle").as_string(), color, darker_val);
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegularExpression rg = QRegularExpression (element, hl->pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
hl->hl_rules.push_back (make_pair (rg, fmt));
}
else
if (attr_type == "mcomment-start")
{
// attr = node.attribute ("color");
QString color = hash_get_val (global_palette, node.attribute ("color").as_string(), "gray");
//attr = node.attribute ("fontstyle");
QString fontstyle = node.attribute ("fontstyle").as_string();
QTextCharFormat fmt = tformat_from_style (fontstyle, color, darker_val);
hl->fmt_multi_line_comment = fmt;
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegularExpression rg = QRegularExpression (element, hl->pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
{
hl->comment_start_expr.first = rg;
hl->comment_start_expr.second = true;
}
}
else
if (attr_type == "mcomment-end")
{
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
QRegularExpression rg = QRegularExpression (element, hl->pattern_opts);
if (! rg.isValid())
qDebug() << "! valid " << rg.pattern();
else
{
hl->comment_end_expr.first = rg;
hl->comment_end_expr.second = true;
}
}
else
if (attr_type == "comment")
{
//attr = node.attribute ("name");
QString name = node.attribute ("name").as_string();
QString t = node.text().as_string();
QString element = t.trimmed().remove('\n');
if (element.isEmpty())
return true;
if (name == "cm_mult")
hl->comment_mult = element;
else
if (name == "cm_single")
hl->comment_single = element;
}
}//item
return true;
}
void CSyntaxHighlighterQRegularExpression::load_from_xml_pugi (const QString &fname)
{
if (! file_exists (fname))
return;
casecare = true;
comment_start_expr = make_pair (QRegularExpression(), false);
comment_end_expr = make_pair (QRegularExpression(), false);
QString temp = qstring_load (fname);
if (temp.isEmpty())
return;
int darker_val = settings->value ("darker_val", 100).toInt();
pugi::xml_document doc;
pugi::xml_parse_result result = doc.load_buffer (temp.utf16(),
temp.size() * 2,
pugi::parse_default,
pugi::encoding_utf16);
if (! result)
return;
CXMLHL_walker walker;
walker.darker_val = darker_val;
walker.hl = this;
doc.traverse (walker);
}
void CSyntaxHighlighterQRegularExpression::highlightBlock (const QString &text)
{
if (hl_rules.size() == 0)
return;
for (vector <pair <QRegularExpression, QTextCharFormat> >::iterator p = hl_rules.begin(); p != hl_rules.end(); ++p)
{
QRegularExpressionMatch m = p->first.match (text);
int index = m.capturedStart();
while (index >= 0)
{
int length = m.capturedLength();
if (length == 0)
continue;
setFormat (index, length, p->second);
m = p->first.match (text, index + length);
index = m.capturedStart();
}
}
/*
for (const auto& p: hl_rules)
{
QRegularExpressionMatch m = p.first.match (text);
int index = m.capturedStart();
while (index >= 0)
{
int length = m.capturedLength();
if (length == 0)
continue;
setFormat (index, length, p.second);
m = p.first.match (text, index + length);
index = m.capturedStart();
}
}
*/
if (! comment_start_expr.second && ! comment_end_expr.second)
return;
setCurrentBlockState (0);
int startIndex = 0;
QRegularExpressionMatch m_start = comment_start_expr.first.match (text);
if (previousBlockState() != 1)
startIndex = m_start.capturedStart();
while (startIndex >= 0)
{
QRegularExpressionMatch m_end = comment_end_expr.first.match (text, startIndex);
int endIndex = m_end.capturedStart();
int commentLength;
if (endIndex == -1)
{
setCurrentBlockState (1);
commentLength = text.length() - startIndex;
}
else
commentLength = endIndex - startIndex + m_end.capturedLength();
setFormat (startIndex, commentLength, fmt_multi_line_comment);
m_start = comment_start_expr.first.match (text, startIndex + commentLength);
startIndex = m_start.capturedStart();
}
}
#endif
QMimeData* CDocument::createMimeDataFromSelection() const
{
if (has_rect_selection())
{
QMimeData *md = new QMimeData;
md->setText (rect_sel_get());
return md;
}
return QPlainTextEdit::createMimeDataFromSelection();
}
bool CDocument::canInsertFromMimeData (const QMimeData *source) const
{
// if (source->hasFormat ("text/uri-list"))
// return true;
//else
return true;
}
void CDocument::insertFromMimeData (const QMimeData *source)
{
QString fname;
QFileInfo info;
bool b_ins_plain_text = ! source->hasUrls();
if (source->hasUrls() && source->urls().at(0).scheme() != "file")
b_ins_plain_text = true;
if (b_ins_plain_text)
{
QPlainTextEdit::insertFromMimeData (source);
return;
}
QList<QUrl> l = source->urls();
for (QList <QUrl>::iterator u = l.begin(); u != l.end(); ++u)
{
fname = u->toLocalFile();
info.setFile(fname);
if (info.isFile())
holder->open_file (fname, "UTF-8");
}
}
void CDocument::paintEvent (QPaintEvent *event)
{
if (draw_margin || highlight_current_line)
{
QPainter painter (viewport());
if (highlight_current_line)
{
QRect r = cursorRect();
r.setX (0);
r.setWidth (viewport()->width());
painter.fillRect (r, QBrush (current_line_color));
}
if (draw_margin)
{
QPen pen = painter.pen();
pen.setColor (margin_color);
painter.setPen (pen);