2
This file is part of Konsole, an X terminal.
4
Copyright 2006-2008 by Robert Knight <robertknight@gmail.com>
6
This program is free software; you can redistribute it and/or modify
7
it under the terms of the GNU Lesser General Public License as published by
8
the Free Software Foundation; either version 2 of the License, or
9
(at your option) any later version.
11
This program is distributed in the hope that it will be useful,
12
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
GNU General Public License for more details.
16
You should have received a copy of the GNU Lesser General Public License
17
along with this program; if not, write to the Free Software
18
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22
#ifndef TERMINAL_CHARACTER_DECODER_H
23
#define TERMINAL_CHARACTER_DECODER_H
25
#include "Character.h"
34
* Base class for terminal character decoders
36
* The decoder converts lines of terminal characters which consist of a unicode character, foreground
37
* and background colours and other appearance-related properties into text strings.
39
* Derived classes may produce either plain text with no other colour or appearance information, or
40
* they may produce text which incorporates these additional properties.
42
class TerminalCharacterDecoder
45
virtual ~TerminalCharacterDecoder() {}
47
/** Begin decoding characters. The resulting text is appended to @p output. */
48
virtual void begin(QTextStream* output) = 0;
50
virtual void end() = 0;
53
* Converts a line of terminal characters with associated properties into a text string
54
* and writes the string into an output QTextStream.
56
* @param characters An array of characters of length @p count.
57
* @param count The number of characters
58
* @param properties Additional properties which affect all characters in the line
60
virtual void decodeLine(const Character* const characters,
62
LineProperty properties) = 0;
66
* A terminal character decoder which produces plain text, ignoring colours and other appearance-related
67
* properties of the original characters.
69
class PlainTextDecoder : public TerminalCharacterDecoder
75
* Set whether trailing whitespace at the end of lines should be included
79
void setTrailingWhitespace(bool enable);
81
* Returns whether trailing whitespace at the end of lines is included
84
bool trailingWhitespace() const;
86
* Returns of character positions in the output stream
87
* at which new lines where added. Returns an empty if setTrackLinePositions() is false or if
88
* the output device is not a string.
90
QList<int> linePositions() const;
91
/** Enables recording of character positions at which new lines are added. See linePositions() */
92
void setRecordLinePositions(bool record);
94
virtual void begin(QTextStream* output);
97
virtual void decodeLine(const Character* const characters,
99
LineProperty properties);
103
QTextStream* _output;
104
bool _includeTrailingWhitespace;
106
bool _recordLinePositions;
107
QList<int> _linePositions;
111
* A terminal character decoder which produces pretty HTML markup
113
class HTMLDecoder : public TerminalCharacterDecoder
117
* Constructs an HTML decoder using a default black-on-white color scheme.
122
* Sets the colour table which the decoder uses to produce the HTML colour codes in its
125
void setColorTable( const ColorEntry* table );
127
virtual void decodeLine(const Character* const characters,
129
LineProperty properties);
131
virtual void begin(QTextStream* output);
135
void openSpan(QString& text , const QString& style);
136
void closeSpan(QString& text);
138
QTextStream* _output;
139
const ColorEntry* _colorTable;
141
quint8 _lastRendition;
142
CharacterColor _lastForeColor;
143
CharacterColor _lastBackColor;