Keith Winstein
82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
#ifndef TERMINALFB_HPP
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#define TERMINALFB_HPP
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#include <vector>
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#include <deque>
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/* Terminal framebuffer */
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namespace Terminal {
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class Cell {
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public:
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Cell *overlapping_cell;
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std::vector<wchar_t> contents;
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std::vector<Cell *> overlapped_cells;
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char fallback; /* first character is combining character */
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int width;
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Cell();
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Cell( const Cell & );
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Cell & operator=( const Cell & );
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void reset( void );
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};
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class Row {
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public:
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std::vector<Cell> cells;
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Row( size_t s_width );
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};
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class DrawState {
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private:
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int width, height;
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void new_grapheme( void );
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void snap_cursor_to_border( void );
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int cursor_col, cursor_row;
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int combining_char_col, combining_char_row;
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public:
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bool next_print_will_wrap;
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/* bold, etc. */
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void move_row( int N, bool relative = false );
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void move_col( int N, bool relative = false, bool implicit = false );
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int get_cursor_col( void ) { return cursor_col; }
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int get_cursor_row( void ) { return cursor_row; }
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int get_combining_char_col( void ) { return combining_char_col; }
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int get_combining_char_row( void ) { return combining_char_row; }
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int get_width( void ) { return width; }
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int get_height( void ) { return height; }
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DrawState( int s_width, int s_height );
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};
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class Framebuffer {
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private:
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std::deque<Row> rows;
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void scroll( int N );
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public:
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Framebuffer( int s_width, int s_height );
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DrawState ds;
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void move_rows_autoscroll( int rows );
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Cell *get_cell( void );
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Cell *get_cell( int row, int col );
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Cell *get_combining_cell( void );
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void claim_overlap( int row, int col );
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};
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}
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#endif
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