Keith Winstein
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
|
|
Mosh: the mobile shell
|
|
Copyright 2012 Keith Winstein
|
|
|
|
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, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, as a special exception, the copyright holders give
|
|
permission to link the code of portions of this program with the
|
|
OpenSSL library under certain conditions as described in each
|
|
individual source file, and distribute linked combinations including
|
|
the two.
|
|
|
|
You must obey the GNU General Public License in all respects for all
|
|
of the code used other than OpenSSL. If you modify file(s) with this
|
|
exception, you may extend this exception to your version of the
|
|
file(s), but you are not obligated to do so. If you do not wish to do
|
|
so, delete this exception statement from your version. If you delete
|
|
this exception statement from all source files in the program, then
|
|
also delete it here.
|
|
*/
|
|
|
|
#ifndef TERMINALDISPLAY_HPP
|
|
#define TERMINALDISPLAY_HPP
|
|
|
|
#include "terminalframebuffer.h"
|
|
|
|
namespace Terminal {
|
|
/* variables used within a new_frame */
|
|
class FrameState {
|
|
public:
|
|
int x, y;
|
|
bool force_next_put;
|
|
std::string str;
|
|
|
|
int cursor_x, cursor_y;
|
|
Renditions current_rendition;
|
|
|
|
Framebuffer last_frame;
|
|
|
|
FrameState( const Framebuffer &s_last )
|
|
: x(0), y(0),
|
|
force_next_put( false ),
|
|
str(), cursor_x(0), cursor_y(0), current_rendition( 0 ),
|
|
last_frame( s_last )
|
|
{
|
|
str.reserve( 1024 );
|
|
}
|
|
|
|
void append( const char * s ) { str.append( s ); }
|
|
void appendstring( const std::string s ) { str.append( s ); }
|
|
|
|
void append_silent_move( int y, int x );
|
|
};
|
|
|
|
class Display {
|
|
private:
|
|
bool has_ech; /* erase character is part of vt200 but not supported by tmux
|
|
(or by "screen" terminfo entry, which is what tmux advertises) */
|
|
|
|
bool has_bce; /* erases result in cell filled with background color */
|
|
|
|
bool has_title; /* supports window title and icon name */
|
|
|
|
int posterize_colors; /* downsample input colors >8 to [0..7] */
|
|
|
|
void put_cell( bool initialized, FrameState &frame, const Framebuffer &f ) const;
|
|
|
|
public:
|
|
void downgrade( Framebuffer &f ) const { if ( posterize_colors ) { f.posterize(); } }
|
|
|
|
std::string new_frame( bool initialized, const Framebuffer &last, const Framebuffer &f ) const;
|
|
|
|
Display( bool use_environment );
|
|
};
|
|
}
|
|
|
|
#endif
|