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sortix--sortix/kernel/textterminal.h
2014-11-24 17:41:26 +01:00

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2.5 KiB
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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
This file is part of Sortix.
Sortix 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.
Sortix 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
Sortix. If not, see <http://www.gnu.org/licenses/>.
textterminal.h
An indexable text buffer with the VGA text mode framebuffer as backend.
*******************************************************************************/
#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 Printable ?
{
public:
TextTerminal(Ref<TextBufferHandle> textbufhandle);
~TextTerminal();
size_t Print(const char* string, size_t stringlen);
size_t Width() const;
size_t Height() const;
void GetCursor(size_t* column, size_t* row) const;
bool Sync();
bool EmergencyIsImpaired();
bool EmergencyRecoup();
void EmergencyReset();
size_t EmergencyPrint(const char* string, size_t stringlen);
size_t EmergencyWidth() const;
size_t EmergencyHeight() const;
void EmergencyGetCursor(size_t* column, size_t* row) const;
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;
mutable Ref<TextBufferHandle> textbufhandle;
mutable kthread_mutex_t termlock;
uint8_t vgacolor;
unsigned column;
unsigned line;
unsigned ansisavedposx;
unsigned ansisavedposy;
enum { NONE = 0, CSI, COMMAND, } ansimode;
static const size_t ANSI_NUM_PARAMS = 16;
unsigned ansiusedparams;
unsigned ansiparams[ANSI_NUM_PARAMS];
unsigned currentparamindex;
bool paramundefined;
bool ignoresequence;
};
} // namespace Sortix
#endif