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#pragma once
#include <AK/AKString.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <Widgets/GraphicsBitmap.h>
class Terminal {
public:
Terminal();
~Terminal();
void create_window();
void paint();
void on_char(byte);
private:
void scroll_up();
void set_cursor(unsigned row, unsigned column);
void put_character_at(unsigned row, unsigned column, byte ch);
void escape$A(const Vector<unsigned>&);
void escape$D(const Vector<unsigned>&);
void escape$H(const Vector<unsigned>&);
void escape$J(const Vector<unsigned>&);
void escape$m(const Vector<unsigned>&);
void escape$s(const Vector<unsigned>&);
void escape$u(const Vector<unsigned>&);
void clear();
void set_size(word columns, word rows);
word columns() const { return m_columns; }
word rows() const { return m_rows; }
struct Attribute {
Attribute() { reset(); }
void reset()
{
foreground_color = 7;
background_color = 0;
bold = false;
dirty = true;
}
unsigned foreground_color : 4;
unsigned background_color : 4;
bool bold : 1;
bool dirty : 1;
};
byte* m_buffer { nullptr };
Attribute* m_attributes { nullptr };
word m_columns { 0 };
word m_rows { 0 };
byte m_cursor_row { 0 };
byte m_cursor_column { 0 };
byte m_saved_cursor_row { 0 };
byte m_saved_cursor_column { 0 };
Attribute m_current_attribute;
void execute_escape_sequence(byte final);
enum EscapeState {
Normal,
ExpectBracket,
ExpectParameter,
ExpectIntermediate,
ExpectFinal,
};
EscapeState m_escape_state { Normal };
Vector<byte> m_parameters;
Vector<byte> m_intermediates;
byte* m_horizontal_tabs { nullptr };
bool m_belling { false };
int m_window_id { 0 };
RetainPtr<GraphicsBitmap> m_backing;
int m_pixel_width { 0 };
int m_pixel_height { 0 };
int m_rows_to_scroll_backing_store { 0 };
int m_inset { 2 };
int m_line_spacing { 4 };
};
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