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This file is part of Konsole, KDE's terminal.
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Copyright (C) 2007 by Robert Knight <robertknight@gmail.com>
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Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de>
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Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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#ifndef CHARACTERCOLOR_H
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#define CHARACTERCOLOR_H
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#include <QtGui/QColor>
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* An entry in a terminal display's color palette.
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* A color palette is an array of 16 ColorEntry instances which map
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* system color indexes (from 0 to 15) into actual colors.
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* Each entry can be set as bold, in which case any text
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* drawn using the color should be drawn in bold.
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* Each entry can also be transparent, in which case the terminal
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* display should avoid drawing the background for any characters
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* using the entry as a background.
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* Constructs a new color palette entry.
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* @param c The color value for this entry.
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* @param tr Specifies that the color should be transparent when used as a background color.
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* @param b Specifies that text drawn with this color should be bold.
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ColorEntry( QColor c, bool tr, bool b ) : color( c ), transparent( tr ), bold( b ) {}
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* Constructs a new color palette entry with an undefined color, and
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* with the transparent and bold flags set to false.
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ColorEntry() : transparent( false ), bold( false ) {}
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* Sets the color, transparency and boldness of this color to those of @p rhs.
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void operator=( const ColorEntry& rhs )
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transparent = rhs.transparent;
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/** The color value of this entry for display. */
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* If true character backgrounds using this color should be transparent.
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* This is not applicable when the color is used to render text.
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* If true characters drawn using this color should be bold.
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* This is not applicable when the color is used to draw a character's background.
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// Attributed Character Representations ///////////////////////////////
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#define BASE_COLORS (2+8)
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#define TABLE_COLORS (INTENSITIES*BASE_COLORS)
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#define DEFAULT_FORE_COLOR 0
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#define DEFAULT_BACK_COLOR 1
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//a standard set of colors using black text on a white background.
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//defined in TerminalDisplay.cpp
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static const ColorEntry base_color_table[TABLE_COLORS] =
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// The following are almost IBM standard color codes, with some slight
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// gamma correction for the dim colors to compensate for bright X screens.
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// It contains the 8 ansiterm/xterm colors in 2 intensities.
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// Fixme: could add faint colors here, also.
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ColorEntry( QColor( 0x00, 0x00, 0x00 ), 0, 0 ), ColorEntry( QColor( 0xB2, 0xB2, 0xB2 ), 1, 0 ), // Dfore, Dback
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ColorEntry( QColor( 0x00, 0x00, 0x00 ), 0, 0 ), ColorEntry( QColor( 0xB2, 0x18, 0x18 ), 0, 0 ), // Black, Red
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ColorEntry( QColor( 0x18, 0xB2, 0x18 ), 0, 0 ), ColorEntry( QColor( 0xB2, 0x68, 0x18 ), 0, 0 ), // Green, Yellow
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ColorEntry( QColor( 0x18, 0x18, 0xB2 ), 0, 0 ), ColorEntry( QColor( 0xB2, 0x18, 0xB2 ), 0, 0 ), // Blue, Magenta
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ColorEntry( QColor( 0x18, 0xB2, 0xB2 ), 0, 0 ), ColorEntry( QColor( 0xB2, 0xB2, 0xB2 ), 0, 0 ), // Cyan, White
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ColorEntry( QColor( 0x00, 0x00, 0x00 ), 0, 1 ), ColorEntry( QColor( 0xFF, 0xFF, 0xFF ), 1, 0 ),
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ColorEntry( QColor( 0x68, 0x68, 0x68 ), 0, 0 ), ColorEntry( QColor( 0xFF, 0x54, 0x54 ), 0, 0 ),
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ColorEntry( QColor( 0x54, 0xFF, 0x54 ), 0, 0 ), ColorEntry( QColor( 0xFF, 0xFF, 0x54 ), 0, 0 ),
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ColorEntry( QColor( 0x54, 0x54, 0xFF ), 0, 0 ), ColorEntry( QColor( 0xFF, 0x54, 0xFF ), 0, 0 ),
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ColorEntry( QColor( 0x54, 0xFF, 0xFF ), 0, 0 ), ColorEntry( QColor( 0xFF, 0xFF, 0xFF ), 0, 0 )
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/* CharacterColor is a union of the various color spaces.
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Assignment is as follows:
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Type - Space - Values
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0 - Undefined - u: 0, v:0 w:0
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1 - Default - u: 0..1 v:intense w:0
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2 - System - u: 0..7 v:intense w:0
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3 - Index(256) - u: 16..255 v:0 w:0
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4 - RGB - u: 0..255 v:0..256 w:0..256
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Default color space has two separate colors, namely
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default foreground and default background color.
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#define COLOR_SPACE_UNDEFINED 0
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#define COLOR_SPACE_DEFAULT 1
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#define COLOR_SPACE_SYSTEM 2
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#define COLOR_SPACE_256 3
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#define COLOR_SPACE_RGB 4
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* Describes the color of a single character in the terminal.
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friend class Character;
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/** Constructs a new CharacterColor whoose color and color space are undefined. */
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: _colorSpace( COLOR_SPACE_UNDEFINED ),
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* Constructs a new CharacterColor using the specified @p colorSpace and with
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* The meaning of @p co depends on the @p colorSpace used.
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* TODO : Document how @p co relates to @p colorSpace
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* TODO : Add documentation about available color spaces.
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CharacterColor( quint8 colorSpace, int co )
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: _colorSpace( colorSpace ),
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switch ( colorSpace )
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case COLOR_SPACE_DEFAULT:
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case COLOR_SPACE_SYSTEM:
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_v = ( co >> 3 ) & 1;
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case COLOR_SPACE_256:
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case COLOR_SPACE_RGB:
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_colorSpace = COLOR_SPACE_UNDEFINED;
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* Returns true if this character color entry is valid.
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return _colorSpace != COLOR_SPACE_UNDEFINED;
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* Toggles the value of this color between a normal system color and the corresponding intensive
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* This is only applicable if the color is using the COLOR_SPACE_DEFAULT or COLOR_SPACE_SYSTEM
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void toggleIntensive();
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* Returns the color within the specified color @palette
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* The @p palette is only used if this color is one of the 16 system colors, otherwise
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QColor color( const ColorEntry* palette ) const;
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* Compares two colors and returns true if they represent the same color value and
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* use the same color space.
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friend bool operator == ( const CharacterColor& a, const CharacterColor& b );
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* Compares two colors and returns true if they represent different color values
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* or use different color spaces.
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friend bool operator != ( const CharacterColor& a, const CharacterColor& b );
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// bytes storing the character color
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inline bool operator == ( const CharacterColor& a, const CharacterColor& b )
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return *reinterpret_cast<const quint32*>( &a._colorSpace ) ==
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*reinterpret_cast<const quint32*>( &b._colorSpace );
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inline bool operator != ( const CharacterColor& a, const CharacterColor& b )
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return *reinterpret_cast<const quint32*>( &a._colorSpace ) !=
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*reinterpret_cast<const quint32*>( &b._colorSpace );
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inline const QColor color256( quint8 u, const ColorEntry* base )
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// 0.. 16: system colors
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if ( u < 8 ) return base[u+2 ].color; u -= 8;
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if ( u < 8 ) return base[u+2+BASE_COLORS].color; u -= 8;
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// 16..231: 6x6x6 rgb color cube
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if ( u < 216 ) return QColor( 255*(( u / 36 ) % 6 ) / 5,
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255*(( u / 6 ) % 6 ) / 5,
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255*(( u / 1 ) % 6 ) / 5 ); u -= 216;
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// 232..255: gray, leaving out black and white
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int gray = u * 10 + 8; return QColor( gray, gray, gray );
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inline QColor CharacterColor::color( const ColorEntry* base ) const
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switch ( _colorSpace )
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case COLOR_SPACE_DEFAULT: return base[_u+0+( _v?BASE_COLORS:0 )].color;
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case COLOR_SPACE_SYSTEM: return base[_u+2+( _v?BASE_COLORS:0 )].color;
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case COLOR_SPACE_256: return color256( _u, base );
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case COLOR_SPACE_RGB: return QColor( _u, _v, _w );
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case COLOR_SPACE_UNDEFINED: return QColor();
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Q_ASSERT( false ); // invalid color space
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inline void CharacterColor::toggleIntensive()
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if ( _colorSpace == COLOR_SPACE_SYSTEM || _colorSpace == COLOR_SPACE_DEFAULT )
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#endif // CHARACTERCOLOR_H
added
removed
src/plugins/grass/qtermwidget/CharacterColor.h
