Separate modules by subdirectory
This commit is contained in:
Keith Winstein
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#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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#include <string>
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#include <list>
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#include <assert.h>
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/* Terminal framebuffer */
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namespace Terminal {
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class Renditions {
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public:
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bool bold, underlined, blink, inverse, invisible;
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int foreground_color;
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int background_color;
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Renditions( int s_background );
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void set_rendition( int num );
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std::string sgr( void ) const;
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bool operator==( const Renditions &x ) const
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{
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return (bold == x.bold) && (underlined == x.underlined)
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&& (blink == x.blink) && (inverse == x.inverse)
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&& (invisible == x.invisible) && (foreground_color == x.foreground_color)
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&& (background_color == x.background_color);
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}
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};
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class Cell {
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public:
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std::vector<wchar_t> contents;
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char fallback; /* first character is combining character */
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int width;
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Renditions renditions;
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Cell( int background_color )
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: contents(),
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fallback( false ),
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width( 1 ),
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renditions( background_color )
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{}
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Cell() /* default constructor required by C++11 STL */
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: contents(),
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fallback( false ),
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width( 1 ),
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renditions( 0 )
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{
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assert( false );
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}
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void reset( int background_color );
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bool operator==( const Cell &x ) const
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{
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return ( (contents == x.contents)
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&& (fallback == x.fallback)
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&& (width == x.width)
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&& (renditions == x.renditions) );
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}
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wchar_t debug_contents( void ) const;
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bool is_blank( void ) const
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{
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return ( contents.empty()
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|| ( (contents.size() == 1) && ( (contents.front() == 0x20)
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|| (contents.front() == 0xA0) ) ) );
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}
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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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bool wrap;
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Row( size_t s_width, int background_color )
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: cells( s_width, Cell( background_color ) ), wrap( false )
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{}
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Row() /* default constructor required by C++11 STL */
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: cells( 1, Cell() ), wrap( false )
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{
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assert( false );
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}
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void insert_cell( int col, int background_color );
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void delete_cell( int col, int background_color );
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void reset( int background_color );
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bool operator==( const Row &x ) const
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{
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return ( (cells == x.cells) && (wrap == x.wrap) );
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}
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};
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class SavedCursor {
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public:
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int cursor_col, cursor_row;
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Renditions renditions;
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/* not implemented: character set shift state */
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bool auto_wrap_mode;
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bool origin_mode;
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/* not implemented: state of selective erase */
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SavedCursor();
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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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std::vector<bool> tabs;
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int scrolling_region_top_row, scrolling_region_bottom_row;
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Renditions renditions;
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SavedCursor save;
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public:
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bool next_print_will_wrap;
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bool origin_mode;
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bool auto_wrap_mode;
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bool insert_mode;
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bool cursor_visible;
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bool reverse_video;
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bool application_mode_cursor_keys;
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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 ) const { return cursor_col; }
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int get_cursor_row( void ) const { return cursor_row; }
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int get_combining_char_col( void ) const { return combining_char_col; }
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int get_combining_char_row( void ) const { return combining_char_row; }
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int get_width( void ) const { return width; }
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int get_height( void ) const { return height; }
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void set_tab( void );
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void clear_tab( int col );
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int get_next_tab( void );
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std::vector<int> get_tabs( void );
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void set_scrolling_region( int top, int bottom );
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int get_scrolling_region_top_row( void ) const { return scrolling_region_top_row; }
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int get_scrolling_region_bottom_row( void ) const { return scrolling_region_bottom_row; }
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int limit_top( void );
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int limit_bottom( void );
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void add_rendition( int x ) { renditions.set_rendition( x ); }
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Renditions get_renditions( void ) const { return renditions; }
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int get_background_rendition( void ) { return renditions.background_color; }
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void save_cursor( void );
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void restore_cursor( void );
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void clear_saved_cursor( void ) { save = SavedCursor(); }
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void resize( int s_width, int s_height );
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DrawState( int s_width, int s_height );
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bool operator==( const DrawState &x ) const
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{
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/* only compare fields that affect display */
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return ( width == x.width ) && ( height == x.height ) && ( cursor_col == x.cursor_col )
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&& ( cursor_row == x.cursor_row ) && ( cursor_visible == x.cursor_visible ) &&
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( reverse_video == x.reverse_video ) && ( renditions == x.renditions );
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}
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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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std::deque<wchar_t> window_title;
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unsigned int bell_count;
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Row newrow( void ) { return Row( ds.get_width(), ds.get_background_rendition() ); }
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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 scroll( int N );
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void move_rows_autoscroll( int rows );
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const Row *get_row( int row ) const
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{
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if ( row == -1 ) row = ds.get_cursor_row();
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return &rows[ row ];
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}
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inline const Cell *get_cell( void ) const
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{
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return &rows[ ds.get_cursor_row() ].cells[ ds.get_cursor_col() ];
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}
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inline const Cell *get_cell( int row, int col ) const
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{
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if ( row == -1 ) row = ds.get_cursor_row();
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if ( col == -1 ) col = ds.get_cursor_col();
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return &rows[ row ].cells[ col ];
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}
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Row *get_mutable_row( int row )
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{
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if ( row == -1 ) row = ds.get_cursor_row();
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return &rows[ row ];
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}
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inline Cell *get_mutable_cell( void )
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{
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return &rows[ ds.get_cursor_row() ].cells[ ds.get_cursor_col() ];
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}
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inline Cell *get_mutable_cell( int row, int col )
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{
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if ( row == -1 ) row = ds.get_cursor_row();
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if ( col == -1 ) col = ds.get_cursor_col();
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return &rows[ row ].cells[ col ];
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}
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Cell *get_combining_cell( void );
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void apply_renditions_to_current_cell( void );
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void insert_line( int before_row );
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void delete_line( int row );
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void insert_cell( int row, int col );
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void delete_cell( int row, int col );
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void reset( void );
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void soft_reset( void );
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void set_window_title( const std::deque<wchar_t> &s ) { window_title = s; }
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const std::deque<wchar_t> & get_window_title( void ) const { return window_title; }
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void prefix_window_title( const std::deque<wchar_t> &s );
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void resize( int s_width, int s_height );
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void reset_cell( Cell *c ) { c->reset( ds.get_background_rendition() ); }
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void reset_row( Row *r ) { r->reset( ds.get_background_rendition() ); }
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void ring_bell( void ) { bell_count++; }
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unsigned int get_bell_count( void ) const { return bell_count; }
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bool operator==( const Framebuffer &x ) const
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{
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return ( rows == x.rows ) && ( window_title == x.window_title ) && ( bell_count == x.bell_count ) && ( ds == x.ds );
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}
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};
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}
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#endif
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