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Diffstat (limited to 'qtermwidget/Filter.cpp')
| -rw-r--r-- | qtermwidget/Filter.cpp | 562 |
1 files changed, 562 insertions, 0 deletions
diff --git a/qtermwidget/Filter.cpp b/qtermwidget/Filter.cpp new file mode 100644 index 0000000..c3f4919 --- /dev/null +++ b/qtermwidget/Filter.cpp @@ -0,0 +1,562 @@ +/* + Copyright (C) 2007 by Robert Knight <robertknight@gmail.com> + + Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 + + 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., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. +*/ + +// Own +#include "Filter.h" + +// System +#include <iostream> + +// Qt +#include <QtGui/QAction> +#include <QtGui/QApplication> +#include <QtGui/QClipboard> +#include <QtCore/QString> + +#include <QtCore/QSharedData> +#include <QtCore> + +// KDE +//#include <KLocale> +//#include <KRun> + +// Konsole +#include "TerminalCharacterDecoder.h" + +using namespace Konsole; + +FilterChain::~FilterChain() +{ + QMutableListIterator<Filter*> iter(*this); + + while ( iter.hasNext() ) + { + Filter* filter = iter.next(); + iter.remove(); + delete filter; + } +} + +void FilterChain::addFilter(Filter* filter) +{ + append(filter); +} +void FilterChain::removeFilter(Filter* filter) +{ + removeAll(filter); +} +bool FilterChain::containsFilter(Filter* filter) +{ + return contains(filter); +} +void FilterChain::reset() +{ + QListIterator<Filter*> iter(*this); + while (iter.hasNext()) + iter.next()->reset(); +} +void FilterChain::setBuffer(const QString* buffer , const QList<int>* linePositions) +{ + QListIterator<Filter*> iter(*this); + while (iter.hasNext()) + iter.next()->setBuffer(buffer,linePositions); +} +void FilterChain::process() +{ + QListIterator<Filter*> iter(*this); + while (iter.hasNext()) + iter.next()->process(); +} +void FilterChain::clear() +{ + QList<Filter*>::clear(); +} +Filter::HotSpot* FilterChain::hotSpotAt(int line , int column) const +{ + QListIterator<Filter*> iter(*this); + while (iter.hasNext()) + { + Filter* filter = iter.next(); + Filter::HotSpot* spot = filter->hotSpotAt(line,column); + if ( spot != 0 ) + { + return spot; + } + } + + return 0; +} + +QList<Filter::HotSpot*> FilterChain::hotSpots() const +{ + QList<Filter::HotSpot*> list; + QListIterator<Filter*> iter(*this); + while (iter.hasNext()) + { + Filter* filter = iter.next(); + list << filter->hotSpots(); + } + return list; +} +//QList<Filter::HotSpot*> FilterChain::hotSpotsAtLine(int line) const; + +TerminalImageFilterChain::TerminalImageFilterChain() +: _buffer(0) +, _linePositions(0) +{ +} + +TerminalImageFilterChain::~TerminalImageFilterChain() +{ + delete _buffer; + delete _linePositions; +} + +void TerminalImageFilterChain::setImage(const Character* const image , int lines , int columns, const QVector<LineProperty>& lineProperties) +{ +//qDebug("%s %d", __FILE__, __LINE__); + if (empty()) + return; +//qDebug("%s %d", __FILE__, __LINE__); + + // reset all filters and hotspots + reset(); +//qDebug("%s %d", __FILE__, __LINE__); + + PlainTextDecoder decoder; + decoder.setTrailingWhitespace(false); + +//qDebug("%s %d", __FILE__, __LINE__); + // setup new shared buffers for the filters to process on + QString* newBuffer = new QString(); + QList<int>* newLinePositions = new QList<int>(); + setBuffer( newBuffer , newLinePositions ); + + // free the old buffers + delete _buffer; + delete _linePositions; + + _buffer = newBuffer; + _linePositions = newLinePositions; + + QTextStream lineStream(_buffer); + decoder.begin(&lineStream); + + for (int i=0 ; i < lines ; i++) + { + _linePositions->append(_buffer->length()); + decoder.decodeLine(image + i*columns,columns,LINE_DEFAULT); + + // pretend that each line ends with a newline character. + // this prevents a link that occurs at the end of one line + // being treated as part of a link that occurs at the start of the next line + // + // the downside is that links which are spread over more than one line are not + // highlighted. + // + // TODO - Use the "line wrapped" attribute associated with lines in a + // terminal image to avoid adding this imaginary character for wrapped + // lines + if ( !(lineProperties.value(i,LINE_DEFAULT) & LINE_WRAPPED) ) + lineStream << QChar('\n'); + } + decoder.end(); +// qDebug("%s %d", __FILE__, __LINE__); +} + +Filter::Filter() : +_linePositions(0), +_buffer(0) +{ +} + +Filter::~Filter() +{ + QListIterator<HotSpot*> iter(_hotspotList); + while (iter.hasNext()) + { + delete iter.next(); + } +} +void Filter::reset() +{ + _hotspots.clear(); + _hotspotList.clear(); +} + +void Filter::setBuffer(const QString* buffer , const QList<int>* linePositions) +{ + _buffer = buffer; + _linePositions = linePositions; +} + +void Filter::getLineColumn(int position , int& startLine , int& startColumn) +{ + Q_ASSERT( _linePositions ); + Q_ASSERT( _buffer ); + + + for (int i = 0 ; i < _linePositions->count() ; i++) + { + //kDebug() << "line position at " << i << " = " << _linePositions[i]; + int nextLine = 0; + + if ( i == _linePositions->count()-1 ) + { + nextLine = _buffer->length() + 1; + } + else + { + nextLine = _linePositions->value(i+1); + } + + // kDebug() << "pos - " << position << " line pos(" << i<< ") " << _linePositions->value(i) << + // " next = " << nextLine << " buffer len = " << _buffer->length(); + + if ( _linePositions->value(i) <= position && position < nextLine ) + { + startLine = i; + startColumn = position - _linePositions->value(i); + return; + } + } +} + + +/*void Filter::addLine(const QString& text) +{ + _linePositions << _buffer.length(); + _buffer.append(text); +}*/ + +const QString* Filter::buffer() +{ + return _buffer; +} +Filter::HotSpot::~HotSpot() +{ +} +void Filter::addHotSpot(HotSpot* spot) +{ + _hotspotList << spot; + + for (int line = spot->startLine() ; line <= spot->endLine() ; line++) + { + _hotspots.insert(line,spot); + } +} +QList<Filter::HotSpot*> Filter::hotSpots() const +{ + return _hotspotList; +} +QList<Filter::HotSpot*> Filter::hotSpotsAtLine(int line) const +{ + return _hotspots.values(line); +} + +Filter::HotSpot* Filter::hotSpotAt(int line , int column) const +{ + QListIterator<HotSpot*> spotIter(_hotspots.values(line)); + + while (spotIter.hasNext()) + { + HotSpot* spot = spotIter.next(); + + if ( spot->startLine() == line && spot->startColumn() > column ) + continue; + if ( spot->endLine() == line && spot->endColumn() < column ) + continue; + + return spot; + } + + return 0; +} + +Filter::HotSpot::HotSpot(int startLine , int startColumn , int endLine , int endColumn) + : _startLine(startLine) + , _startColumn(startColumn) + , _endLine(endLine) + , _endColumn(endColumn) + , _type(NotSpecified) +{ +} +QString Filter::HotSpot::tooltip() const +{ + return QString(); +} +QList<QAction*> Filter::HotSpot::actions() +{ + return QList<QAction*>(); +} +int Filter::HotSpot::startLine() const +{ + return _startLine; +} +int Filter::HotSpot::endLine() const +{ + return _endLine; +} +int Filter::HotSpot::startColumn() const +{ + return _startColumn; +} +int Filter::HotSpot::endColumn() const +{ + return _endColumn; +} +Filter::HotSpot::Type Filter::HotSpot::type() const +{ + return _type; +} +void Filter::HotSpot::setType(Type type) +{ + _type = type; +} + +RegExpFilter::RegExpFilter() +{ +} + +RegExpFilter::HotSpot::HotSpot(int startLine,int startColumn,int endLine,int endColumn) + : Filter::HotSpot(startLine,startColumn,endLine,endColumn) +{ + setType(Marker); +} + +void RegExpFilter::HotSpot::activate(QObject*) +{ +} + +void RegExpFilter::HotSpot::setCapturedTexts(const QStringList& texts) +{ + _capturedTexts = texts; +} +QStringList RegExpFilter::HotSpot::capturedTexts() const +{ + return _capturedTexts; +} + +void RegExpFilter::setRegExp(const QRegExp& regExp) +{ + _searchText = regExp; +} +QRegExp RegExpFilter::regExp() const +{ + return _searchText; +} +/*void RegExpFilter::reset(int) +{ + _buffer = QString(); +}*/ +void RegExpFilter::process() +{ + int pos = 0; + const QString* text = buffer(); + + Q_ASSERT( text ); + + // ignore any regular expressions which match an empty string. + // otherwise the while loop below will run indefinitely + static const QString emptyString(""); + if ( _searchText.exactMatch(emptyString) ) + return; + + while(pos >= 0) + { + pos = _searchText.indexIn(*text,pos); + + if ( pos >= 0 ) + { + + int startLine = 0; + int endLine = 0; + int startColumn = 0; + int endColumn = 0; + + + //kDebug() << "pos from " << pos << " to " << pos + _searchText.matchedLength(); + + getLineColumn(pos,startLine,startColumn); + getLineColumn(pos + _searchText.matchedLength(),endLine,endColumn); + + //kDebug() << "start " << startLine << " / " << startColumn; + //kDebug() << "end " << endLine << " / " << endColumn; + + RegExpFilter::HotSpot* spot = newHotSpot(startLine,startColumn, + endLine,endColumn); + spot->setCapturedTexts(_searchText.capturedTexts()); + + addHotSpot( spot ); + pos += _searchText.matchedLength(); + + // if matchedLength == 0, the program will get stuck in an infinite loop + Q_ASSERT( _searchText.matchedLength() > 0 ); + } + } +} + +RegExpFilter::HotSpot* RegExpFilter::newHotSpot(int startLine,int startColumn, + int endLine,int endColumn) +{ + return new RegExpFilter::HotSpot(startLine,startColumn, + endLine,endColumn); +} +RegExpFilter::HotSpot* UrlFilter::newHotSpot(int startLine,int startColumn,int endLine, + int endColumn) +{ + return new UrlFilter::HotSpot(startLine,startColumn, + endLine,endColumn); +} +UrlFilter::HotSpot::HotSpot(int startLine,int startColumn,int endLine,int endColumn) +: RegExpFilter::HotSpot(startLine,startColumn,endLine,endColumn) +, _urlObject(new FilterObject(this)) +{ + setType(Link); +} +QString UrlFilter::HotSpot::tooltip() const +{ + QString url = capturedTexts().first(); + + const UrlType kind = urlType(); + + if ( kind == StandardUrl ) + return QString(); + else if ( kind == Email ) + return QString(); + else + return QString(); +} +UrlFilter::HotSpot::UrlType UrlFilter::HotSpot::urlType() const +{ + QString url = capturedTexts().first(); + + if ( FullUrlRegExp.exactMatch(url) ) + return StandardUrl; + else if ( EmailAddressRegExp.exactMatch(url) ) + return Email; + else + return Unknown; +} + +void UrlFilter::HotSpot::activate(QObject* object) +{ + QString url = capturedTexts().first(); + + const UrlType kind = urlType(); + + const QString& actionName = object ? object->objectName() : QString(); + + if ( actionName == "copy-action" ) + { + //kDebug() << "Copying url to clipboard:" << url; + + QApplication::clipboard()->setText(url); + return; + } + + if ( !object || actionName == "open-action" ) + { + if ( kind == StandardUrl ) + { + // if the URL path does not include the protocol ( eg. "www.kde.org" ) then + // prepend http:// ( eg. "www.kde.org" --> "http://www.kde.org" ) + if (!url.contains("://")) + { + url.prepend("http://"); + } + } + else if ( kind == Email ) + { + url.prepend("mailto:"); + } + +// new KRun(url,QApplication::activeWindow()); + } +} + +// Note: Altering these regular expressions can have a major effect on the performance of the filters +// used for finding URLs in the text, especially if they are very general and could match very long +// pieces of text. +// Please be careful when altering them. + +//regexp matches: +// full url: +// protocolname:// or www. followed by anything other than whitespaces, <, >, ' or ", and ends before whitespaces, <, >, ', ", ], !, comma and dot +const QRegExp UrlFilter::FullUrlRegExp("(www\\.(?!\\.)|[a-z][a-z0-9+.-]*://)[^\\s<>'\"]+[^!,\\.\\s<>'\"\\]]"); +// email address: +// [word chars, dots or dashes]@[word chars, dots or dashes].[word chars] +const QRegExp UrlFilter::EmailAddressRegExp("\\b(\\w|\\.|-)+@(\\w|\\.|-)+\\.\\w+\\b"); + +// matches full url or email address +const QRegExp UrlFilter::CompleteUrlRegExp('('+FullUrlRegExp.pattern()+'|'+ + EmailAddressRegExp.pattern()+')'); + +UrlFilter::UrlFilter() +{ + setRegExp( CompleteUrlRegExp ); +} +UrlFilter::HotSpot::~HotSpot() +{ + delete _urlObject; +} +void FilterObject::activated() +{ + _filter->activate(sender()); +} +QList<QAction*> UrlFilter::HotSpot::actions() +{ + QList<QAction*> list; + + const UrlType kind = urlType(); + + QAction* openAction = new QAction(_urlObject); + QAction* copyAction = new QAction(_urlObject);; + + Q_ASSERT( kind == StandardUrl || kind == Email ); + + if ( kind == StandardUrl ) + { + openAction->setText(("Open Link")); + copyAction->setText(("Copy Link Address")); + } + else if ( kind == Email ) + { + openAction->setText(("Send Email To...")); + copyAction->setText(("Copy Email Address")); + } + + // object names are set here so that the hotspot performs the + // correct action when activated() is called with the triggered + // action passed as a parameter. + openAction->setObjectName("open-action"); + copyAction->setObjectName("copy-action"); + + QObject::connect( openAction , SIGNAL(triggered()) , _urlObject , SLOT(activated()) ); + QObject::connect( copyAction , SIGNAL(triggered()) , _urlObject , SLOT(activated()) ); + + list << openAction; + list << copyAction; + + return list; +} + +//#include "moc_Filter.cpp" |