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#pragma once
#include <AK/AKString.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <SharedGraphics/GraphicsBitmap.h>
#include <SharedGraphics/Rect.h>
#include <LibGUI/GWidget.h>
#include <LibGUI/GNotifier.h>
class Font;
class Terminal final : public GWidget {
public:
explicit Terminal(int ptm_fd);
virtual ~Terminal() override;
void create_window();
void on_char(byte);
void flush_dirty_lines();
void force_repaint();
void apply_size_increments_to_window(GWindow&);
private:
virtual void event(GEvent&) override;
virtual void paint_event(GPaintEvent&) override;
virtual void resize_event(GResizeEvent&) override;
virtual void keydown_event(GKeyEvent&) override;
virtual const char* class_name() const override { return "Terminal"; }
void scroll_up();
void newline();
void set_cursor(unsigned row, unsigned column);
void put_character_at(unsigned row, unsigned column, byte ch);
void invalidate_cursor();
void set_window_title(String&&);
void inject_string(const String&);
void unimplemented_escape();
void unimplemented_xterm_escape();
void escape$A(const Vector<unsigned>&);
void escape$B(const Vector<unsigned>&);
void escape$C(const Vector<unsigned>&);
void escape$D(const Vector<unsigned>&);
void escape$H(const Vector<unsigned>&);
void escape$J(const Vector<unsigned>&);
void escape$K(const Vector<unsigned>&);
void escape$M(const Vector<unsigned>&);
void escape$m(const Vector<unsigned>&);
void escape$s(const Vector<unsigned>&);
void escape$u(const Vector<unsigned>&);
void escape$t(const Vector<unsigned>&);
void clear();
void set_size(word columns, word rows);
word columns() const { return m_columns; }
word rows() const { return m_rows; }
Rect glyph_rect(word row, word column);
Rect row_rect(word row);
struct Attribute {
Attribute() { reset(); }
void reset()
{
foreground_color = 7;
background_color = 0;
//bold = false;
}
byte foreground_color;
byte background_color;
//bool bold : 1;
bool operator==(const Attribute& other) const
{
return foreground_color == other.foreground_color && background_color == other.background_color;
}
bool operator!=(const Attribute& other) const
{
return !(*this == other);
}
};
struct Line {
explicit Line(word columns);
~Line();
void clear(Attribute);
bool has_only_one_background_color() const;
byte* characters { nullptr };
Attribute* attributes { nullptr };
bool dirty { false };
word length { 0 };
};
Line& line(size_t index) { ASSERT(index < m_rows); return *m_lines[index]; }
Line** m_lines { 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 };
bool m_stomp { false };
Attribute m_current_attribute;
void execute_escape_sequence(byte final);
void execute_xterm_command();
enum EscapeState {
Normal,
ExpectBracket,
ExpectParameter,
ExpectIntermediate,
ExpectFinal,
ExpectXtermParameter1,
ExpectXtermParameter2,
ExpectXtermFinal,
};
EscapeState m_escape_state { Normal };
Vector<byte> m_parameters;
Vector<byte> m_intermediates;
Vector<byte> m_xterm_param1;
Vector<byte> m_xterm_param2;
byte m_final { 0 };
byte* m_horizontal_tabs { nullptr };
bool m_belling { false };
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 };
int m_line_height { 0 };
int m_ptm_fd { -1 };
bool m_in_active_window { false };
bool m_need_full_flush { false };
GNotifier m_notifier;
float m_opacity { 0.8f };
bool m_needs_background_fill { true };
int m_glyph_width { 0 };
};
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