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/*
This file is part of Konsole, an X terminal.
Copyright (C) 2006 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 Lesser 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 Lesser 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 "TerminalCharacterDecoder.h"
// Qt
#include <QtCore/QTextStream>
using namespace Konsole;
PlainTextDecoder::PlainTextDecoder()
: _output(0)
, _includeTrailingWhitespace(true)
{
}
void PlainTextDecoder::setTrailingWhitespace(bool enable)
{
_includeTrailingWhitespace = enable;
}
bool PlainTextDecoder::trailingWhitespace() const
{
return _includeTrailingWhitespace;
}
void PlainTextDecoder::begin(QTextStream* output)
{
_output = output;
}
void PlainTextDecoder::end()
{
_output = 0;
}
void PlainTextDecoder::decodeLine(const Character* const characters, int count, LineProperty /*properties*/
)
{
Q_ASSERT( _output );
//TODO should we ignore or respect the LINE_WRAPPED line property?
//note: we build up a QString and send it to the text stream rather writing into the text
//stream a character at a time because it is more efficient.
//(since QTextStream always deals with QStrings internally anyway)
QString plainText;
plainText.reserve(count);
int outputCount = count;
// if inclusion of trailing whitespace is disabled then find the end of the
// line
if ( !_includeTrailingWhitespace )
{
for (int i = count-1 ; i >= 0 ; i--)
{
if ( characters[i].character != ' ' )
break;
else
outputCount--;
}
}
for (int i=0;i<outputCount;i++)
{
plainText.append( QChar(characters[i].character) );
}
*_output << plainText;
}
HTMLDecoder::HTMLDecoder() :
_output(0)
,_colorTable(base_color_table)
,_innerSpanOpen(false)
,_lastRendition(DEFAULT_RENDITION)
{
}
void HTMLDecoder::begin(QTextStream* output)
{
_output = output;
QString text;
//open monospace span
openSpan(text,"font-family:monospace");
*output << text;
}
void HTMLDecoder::end()
{
Q_ASSERT( _output );
QString text;
closeSpan(text);
*_output << text;
_output = 0;
}
//TODO: Support for LineProperty (mainly double width , double height)
void HTMLDecoder::decodeLine(const Character* const characters, int count, LineProperty /*properties*/
)
{
Q_ASSERT( _output );
QString text;
int spaceCount = 0;
for (int i=0;i<count;i++)
{
QChar ch(characters[i].character);
//check if appearance of character is different from previous char
if ( characters[i].rendition != _lastRendition ||
characters[i].foregroundColor != _lastForeColor ||
characters[i].backgroundColor != _lastBackColor )
{
if ( _innerSpanOpen )
closeSpan(text);
_lastRendition = characters[i].rendition;
_lastForeColor = characters[i].foregroundColor;
_lastBackColor = characters[i].backgroundColor;
//build up style string
QString style;
if ( _lastRendition & RE_BOLD ||
(_colorTable && characters[i].isBold(_colorTable)) )
style.append("font-weight:bold;");
if ( _lastRendition & RE_UNDERLINE )
style.append("font-decoration:underline;");
//colours - a colour table must have been defined first
if ( _colorTable )
{
style.append( QString("color:%1;").arg(_lastForeColor.color(_colorTable).name() ) );
if (!characters[i].isTransparent(_colorTable))
{
style.append( QString("background-color:%1;").arg(_lastBackColor.color(_colorTable).name() ) );
}
}
//open the span with the current style
openSpan(text,style);
_innerSpanOpen = true;
}
//handle whitespace
if (ch.isSpace())
spaceCount++;
else
spaceCount = 0;
//output current character
if (spaceCount < 2)
{
//escape HTML tag characters and just display others as they are
if ( ch == '<' )
text.append("<");
else if (ch == '>')
text.append(">");
else
text.append(ch);
}
else
{
text.append(" "); //HTML truncates multiple spaces, so use a space marker instead
}
}
//close any remaining open inner spans
if ( _innerSpanOpen )
closeSpan(text);
//start new line
text.append("<br>");
*_output << text;
}
void HTMLDecoder::openSpan(QString& text , const QString& style)
{
text.append( QString("<span style=\"%1\">").arg(style) );
}
void HTMLDecoder::closeSpan(QString& text)
{
text.append("</span>");
}
void HTMLDecoder::setColorTable(const ColorEntry* table)
{
_colorTable = table;
}
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