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document.cpp
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/***************************************************************************
* 2007-2021 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 <QXmlStreamReader>
#include <QMimeData>
#include <QTimer>
#include "document.h"
#include "utils.h"
#include "gui_utils.h"
#include "textproc.h"
#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 (fname);
}
void CSyntaxHighlighterQRegExp::load_from_xml (const QString &fname)
{
if (! file_exists (fname))
return;
cs = Qt::CaseSensitive;
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 ("color").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);
}
else
if (attr_type == "mcomment-end")
{
QString element = xml.readElementText().trimmed().remove('\n');
if (! element.isEmpty())
commentEndExpression = QRegExp (element, cs, QRegExp::RegExp);
}
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);
}
}
setCurrentBlockState (0);
int startIndex = 0;
if (commentStartExpression.isEmpty() || commentEndExpression.isEmpty())
return;
if (previousBlockState() != 1)
startIndex = text.indexOf (commentStartExpression);
while (startIndex >= 0)
{
int endIndex = commentEndExpression.indexIn (text, startIndex);
int commentLength;
if (endIndex == -1)
{
setCurrentBlockState (1);
commentLength = text.length() - startIndex;
}
else
commentLength = endIndex - startIndex + commentEndExpression.matchedLength();
setFormat (startIndex, commentLength, fmt_multi_line_comment);
startIndex = text.indexOf (commentStartExpression, startIndex + commentLength);
}
}
#endif
#if QT_VERSION >= 0x050000
CSyntaxHighlighterQRegularExpression::CSyntaxHighlighterQRegularExpression (QTextDocument *parent, CDocument *doc, const QString &fname):
CSyntaxHighlighter (parent, doc, fname)
{
document = doc;
load_from_xml (fname);
}
void CSyntaxHighlighterQRegularExpression::load_from_xml (const QString &fname)
{
if (! file_exists (fname))
return;
casecare = true;
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 ("color").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
commentStartExpression = rg;
}
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
commentEndExpression = rg;
}
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
}
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();
}
}
*/
setCurrentBlockState (0);
int startIndex = 0;
if (! commentStartExpression.isValid() || ! commentEndExpression.isValid())
return;
QRegularExpressionMatch m_start = commentStartExpression.match (text);
if (previousBlockState() != 1)
startIndex = m_start.capturedStart();
while (startIndex >= 0)
{
QRegularExpressionMatch m_end = commentEndExpression.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 = commentStartExpression.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);
painter.drawLine (margin_x, 0, margin_x, viewport()->height());
}
}
QPlainTextEdit::paintEvent (event);
}
void CDocument::keyPressEvent (QKeyEvent *event)
{
// qDebug() << event->nativeScanCode() ;
// qDebug() << int_to_binary (event->nativeModifiers());
// std::bitset<32> btst (event->nativeModifiers());
/*
for (std::size_t i = 0; i < btst.size(); ++i) {
qDebug() << "btst[" << i << "]: " << btst[i];
}
*/
//LSHIFT = 0
//LCTRL = 2
//LALT = 3
//LWIN = 6
if (settings->value ("wasd", "0").toBool())
{
bitset <32> btst (event->nativeModifiers());
QTextCursor cr = textCursor();
QTextCursor::MoveMode m = QTextCursor::MoveAnchor;
if (btst[3] == 1 || btst[6] == 1) //LALT or LWIN
{
int visible_lines;
if (btst[6] == 1)
m = QTextCursor::KeepAnchor;
switch (event->nativeScanCode())
{
case SK_W:
cr.movePosition (QTextCursor::Up, m);
setTextCursor (cr);
return;
case SK_S:
cr.movePosition (QTextCursor::Down, m);
setTextCursor (cr);
return;
case SK_A:
cr.movePosition (QTextCursor::Left, m);
setTextCursor (cr);
return;
case SK_D:
cr.movePosition (QTextCursor::Right, m);
setTextCursor (cr);
return;
case SK_E:
visible_lines = height() / fontMetrics().height();
cr.movePosition (QTextCursor::Down, m, visible_lines);
setTextCursor (cr);
return;
case SK_C:
visible_lines = height() / fontMetrics().height();
cr.movePosition (QTextCursor::Up, m, visible_lines);
setTextCursor (cr);
return;
}
}
}
if (auto_indent && event->key() == Qt::Key_Return)
{
calc_auto_indent();
QPlainTextEdit::keyPressEvent (event);
textCursor().insertText (indent_val);
return;
}
if (event->key() == Qt::Key_Tab)
{
indent();
event->accept();
return;
}
if (event->key() == Qt::Key_Backtab)
{
un_indent();
event->accept();
return;
}
if (event->key() == Qt::Key_Insert)
{
setOverwriteMode (! overwriteMode());
event->accept();
return;
}
QPlainTextEdit::keyPressEvent (event);
}
void CDocument::resizeEvent (QResizeEvent *e)
{
QPlainTextEdit::resizeEvent (e);
QRect cr = contentsRect();
line_num_area->setGeometry (QRect (cr.left(), cr.top(), line_number_area_width(), cr.height()));
}
void CDocument::wheelEvent (QWheelEvent *e)
{
if (e->modifiers() & Qt::ControlModifier)
{
#if QT_VERSION < 0x050000
const int delta = e->delta();
#else
const int delta = e->angleDelta().y();
#endif
QFont f = font();
int sz = f.pointSize();
if (delta > 0)
sz++;
if (delta < 0)
sz--;
f.setPointSize(sz);
setFont(f);
return;
}
QPlainTextEdit::wheelEvent(e);
}
CDocument::CDocument (CDox *hldr, QWidget *parent): QPlainTextEdit (parent)
{
holder = hldr;
highlighter = 0;
tab_page = 0;
markup_mode = "HTML";
file_name = tr ("new[%1]").arg (QTime::currentTime().toString ("hh-mm-ss"));
cursor_xy_visible = true;
charset = "UTF-8";
text_to_search = "";
position = 0;
margin_pos = 72;
margin_x = brace_width * margin_pos;
draw_margin = false;
hl_brackets = false;
auto_indent = false;
tab_sp_width = 8;
spaces_instead_of_tabs = true;
highlight_current_line = false;
#if defined(Q_OS_WIN) || defined(Q_OS_OS2)
eol = "\r\n";
#elif defined(Q_OS_UNIX)
eol = "\n";
#endif
rect_sel_reset();
setup_brace_width();
line_num_area = new CLineNumberArea (this);
connect(this, SIGNAL(selectionChanged()), this, SLOT(slot_selectionChanged()));
connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth()));
connect(this, SIGNAL(updateRequest(QRect, int)), this, SLOT(updateLineNumberArea(QRect, int)));
connect (this, SIGNAL(cursorPositionChanged()), this, SLOT(cb_cursorPositionChanged()));
updateLineNumberAreaWidth();
document()->setUseDesignMetrics (true);
QString s_sel_back_color = hash_get_val (global_palette, "sel-background", "black");
QString s_sel_text_color = hash_get_val (global_palette, "sel-text", "white");
int darker_val = settings->value ("darker_val", 100).toInt();
sel_text_color = QColor (s_sel_text_color).darker(darker_val).name();
sel_back_color = QColor (s_sel_back_color).darker(darker_val).name();
current_line_color = QColor (hash_get_val (global_palette, "cur_line_color",
"#EEF6FF")).darker (settings->value ("darker_val", 100).toInt()).name();
holder->items.push_back (this);
int tab_index = holder->tab_widget->addTab (this, file_name);
tab_page = holder->tab_widget->widget (tab_index);
setFocus (Qt::OtherFocusReason);
}
CDocument::~CDocument()
{
if (file_name.endsWith (".notes") && document()->isModified())
file_save_with_name_plain (file_name);
else
if (file_name.startsWith (holder->dir_config) && document()->isModified())
file_save_with_name_plain (file_name);
else
if (document()->isModified() && file_exists (file_name))
{
if (QMessageBox::warning (0, "TEA",
tr ("%1 has been modified.\n"
"Do you want to save your changes?").arg (file_name),
QMessageBox::Yes | QMessageBox::Default,
QMessageBox::No | QMessageBox::Escape) == QMessageBox::Yes)
file_save_with_name (file_name, charset);
}
if (! file_name.startsWith (holder->dir_config) && ! file_name.endsWith (".notes"))
{
holder->add_to_recent (this);
holder->update_recent_menu();
}
if (file_name.startsWith (holder->todo.dir_days))
holder->todo.load_dayfile();
QMainWindow *w = qobject_cast <QMainWindow *> (holder->parent_wnd);
w->setWindowTitle ("");
int i = holder->tab_widget->indexOf (tab_page);
if (i != -1)
holder->tab_widget->removeTab (i);
}
QString CDocument::get() const
{
return textCursor().selectedText();
}
void CDocument::put (const QString &value)
{
textCursor().insertText (value);
}
bool CDocument::file_open (const QString &fileName, const QString &codec)
{
CTio *tio = holder->tio_handler.get_for_fname (fileName);
if (! tio)
return false;
if (fileName.contains (holder->dir_config))
tio->charset = "UTF-8";
else
tio->charset = codec;
if (! tio->load (fileName))
{
holder->log->log (tr ("cannot open %1 because of: %2")
.arg (fileName)
.arg (tio->error_string));
return false;
}
setPlainText (tio->data);
charset = tio->charset;
eol = tio->eol;
file_name = fileName;
holder->update_project (file_name);
set_tab_caption (QFileInfo (file_name).fileName());
set_hl();
set_markup_mode();
document()->setModified (false);
holder->log->log (tr ("%1 is open").arg (file_name));
QMutableListIterator <QString> i (holder->recent_files);
while (i.hasNext())
{
QStringList lt = i.next().split (",");
if (lt.size() > 0)
if (lt.at(0) == file_name)
i.remove();
}
return true;
}
bool CDocument::file_save_with_name (const QString &fileName, const QString &codec)
{
CTio *tio = holder->tio_handler.get_for_fname (fileName);
if (! tio)
return false;
if (fileName.contains (holder->dir_config))
tio->charset = "UTF-8";
else
tio->charset = codec;
tio->data = toPlainText();
if (eol != "\n")
tio->data.replace ("\n", eol);
if (! tio->save (fileName))
{
holder->log->log (tr ("cannot save %1 because of: %2")
.arg (fileName)
.arg (tio->error_string));
return false;
}
if (! b_destroying_all)
{
charset = tio->charset;
file_name = fileName;
set_tab_caption (QFileInfo (file_name).fileName());
holder->log->log (tr ("%1 is saved").arg (file_name));
update_title (settings->value ("full_path_at_window_title", 1).toBool());
update_status();
document()->setModified (false);
holder->update_current_files_menu();
holder->update_project (file_name);
}
return true;
}
bool CDocument::file_save_with_name_plain (const QString &fileName)
{
QFile file (fileName);
if (! file.open (QFile::WriteOnly))
return false;
QTextCodec *codec = QTextCodec::codecForName (charset.toUtf8().data());
if (! codec)
return false;
QByteArray ba = codec->fromUnicode (toPlainText());
file.write (ba);
file.close();
holder->update_current_files_menu();
return true;
}
int CDocument::get_tab_idx()
{
return holder->tab_widget->indexOf (tab_page);
}
QString CDocument::get_triplex()
{
if (! file_exists (file_name))
return QString ("");
QString s (file_name);
s += ",";
s += charset;
s += ",";