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sortix--sortix/kernel/textterminal.h
Jonas 'Sortie' Termansen 0bb608b09e Support 8-bit/24-bit color and more escape codes in the graphical console.
The console has gained these escape codes:
 - Set color to any of 256 entries in the palette.
 - Set color to any 24-bit RGB value.
 - Inverse mode.
 - Bold mode.
 - Underline mode.
 - Move cursor to line N.
 - \a is now ignored.

The effectively unused ATTR_CHAR has been removed. Parsing of escape codes
has been improved. The graphical palette has been changed to the tango
colors, which makes Sortix look a bit differently. Some user-space programs
have been changed to use different colors that look better under the new
palette.

Remove const from methods that weren't really const and remove mutable
keyword workaround.
2016-11-27 11:19:03 +01:00

91 lines
2.6 KiB
C++

/*
* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* textterminal.h
* Translates a character stream to a 2 dimensional array of characters.
*/
#ifndef SORTIX_TEXTTERMINAL_H
#define SORTIX_TEXTTERMINAL_H
#include <wchar.h>
#include <sortix/kernel/kthread.h>
#include <sortix/kernel/refcount.h>
namespace Sortix {
class TextBufferHandle;
class TextTerminal
{
public:
TextTerminal(TextBufferHandle* textbufhandle);
~TextTerminal();
size_t Print(const char* string, size_t stringlen);
size_t PrintRaw(const char* string, size_t stringlen);
size_t Width();
size_t Height();
void GetCursor(size_t* column, size_t* row);
bool Sync();
bool Invalidate();
void BeginReplace();
void CancelReplace();
void FinishReplace(TextBuffer* textbuf);
bool EmergencyIsImpaired();
bool EmergencyRecoup();
void EmergencyReset();
size_t EmergencyPrint(const char* string, size_t stringlen);
size_t EmergencyPrintRaw(const char* string, size_t stringlen);
size_t EmergencyWidth();
size_t EmergencyHeight();
void EmergencyGetCursor(size_t* column, size_t* row);
bool EmergencySync();
private:
void PutChar(TextBuffer* textbuf, char c);
void UpdateCursor(TextBuffer* textbuf);
void Newline(TextBuffer* textbuf);
void Backspace(TextBuffer* textbuf);
void Tab(TextBuffer* textbuf);
void PutAnsiEscaped(TextBuffer* textbuf, char c);
void RunAnsiCommand(TextBuffer* textbuf, char c);
void AnsiReset();
void Reset();
private:
mbstate_t ps;
TextBufferHandle* textbufhandle;
kthread_mutex_t termlock;
uint16_t next_attr;
uint32_t attr;
uint32_t fgcolor;
uint32_t bgcolor;
uint8_t vgacolor;
unsigned column;
unsigned line;
unsigned ansisavedposx;
unsigned ansisavedposy;
enum { NONE = 0, CSI, CHARSET, COMMAND, GREATERTHAN, } ansimode;
static const size_t ANSI_NUM_PARAMS = 16;
unsigned ansiusedparams;
unsigned ansiparams[ANSI_NUM_PARAMS];
bool ignoresequence;
};
} // namespace Sortix
#endif