Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 1 | #ifndef __VTERM_INTERNAL_H__ |
| 2 | #define __VTERM_INTERNAL_H__ |
| 3 | |
| 4 | #include "vterm.h" |
| 5 | |
| 6 | #include <stdarg.h> |
| 7 | |
| 8 | typedef struct VTermEncoding VTermEncoding; |
| 9 | |
| 10 | typedef struct { |
| 11 | VTermEncoding *enc; |
| 12 | |
| 13 | // This size should be increased if required by other stateful encodings |
| 14 | char data[4*sizeof(uint32_t)]; |
| 15 | } VTermEncodingInstance; |
| 16 | |
| 17 | struct VTermPen |
| 18 | { |
| 19 | VTermColor fg; |
| 20 | VTermColor bg; |
| 21 | unsigned int bold:1; |
| 22 | unsigned int underline:2; |
| 23 | unsigned int italic:1; |
| 24 | unsigned int blink:1; |
| 25 | unsigned int reverse:1; |
| 26 | unsigned int strike:1; |
| 27 | unsigned int font:4; /* To store 0-9 */ |
| 28 | }; |
| 29 | |
Jeff Sharkey | 73fbfc3 | 2013-04-23 10:34:06 -0700 | [diff] [blame^] | 30 | static inline int vterm_color_equal(VTermColor a, VTermColor b) |
| 31 | { |
| 32 | return a.red == b.red && a.green == b.green && a.blue == b.blue; |
| 33 | } |
| 34 | |
Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 35 | struct VTermState |
| 36 | { |
| 37 | VTerm *vt; |
| 38 | |
| 39 | const VTermStateCallbacks *callbacks; |
| 40 | void *cbdata; |
| 41 | |
| 42 | int rows; |
| 43 | int cols; |
| 44 | |
| 45 | /* Current cursor position */ |
| 46 | VTermPos pos; |
| 47 | |
| 48 | int at_phantom; /* True if we're on the "81st" phantom column to defer a wraparound */ |
| 49 | |
| 50 | int scrollregion_top; |
| 51 | int scrollregion_bottom; /* -1 means unbounded */ |
| 52 | #define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows) |
| 53 | int scrollregion_left; |
| 54 | #define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0) |
| 55 | int scrollregion_right; /* -1 means unbounded */ |
| 56 | #define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols) |
| 57 | |
| 58 | /* Bitvector of tab stops */ |
| 59 | unsigned char *tabstops; |
| 60 | |
| 61 | /* Mouse state */ |
| 62 | int mouse_col, mouse_row; |
| 63 | int mouse_buttons; |
| 64 | int mouse_flags; |
| 65 | enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol; |
| 66 | |
| 67 | /* Last glyph output, for Unicode recombining purposes */ |
| 68 | uint32_t *combine_chars; |
| 69 | size_t combine_chars_size; // Number of ELEMENTS in the above |
| 70 | int combine_width; // The width of the glyph above |
| 71 | VTermPos combine_pos; // Position before movement |
| 72 | |
| 73 | struct { |
| 74 | int keypad:1; |
| 75 | int cursor:1; |
| 76 | int autowrap:1; |
| 77 | int insert:1; |
| 78 | int newline:1; |
| 79 | int cursor_visible:1; |
| 80 | int cursor_blink:1; |
| 81 | unsigned int cursor_shape:2; |
| 82 | int alt_screen:1; |
| 83 | int origin:1; |
| 84 | int screen:1; |
| 85 | int leftrightmargin:1; |
| 86 | } mode; |
| 87 | |
| 88 | VTermEncodingInstance encoding[4], encoding_utf8; |
| 89 | int gl_set, gr_set, gsingle_set; |
| 90 | |
| 91 | struct VTermPen pen; |
| 92 | |
| 93 | VTermColor default_fg; |
| 94 | VTermColor default_bg; |
Jeff Sharkey | 73fbfc3 | 2013-04-23 10:34:06 -0700 | [diff] [blame^] | 95 | int fg_index; |
| 96 | int bg_index; |
Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 97 | int bold_is_highbright; |
| 98 | |
Jeff Sharkey | 73fbfc3 | 2013-04-23 10:34:06 -0700 | [diff] [blame^] | 99 | unsigned int protected_cell : 1; |
Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 100 | |
| 101 | /* Saved state under DEC mode 1048/1049 */ |
| 102 | struct { |
| 103 | VTermPos pos; |
| 104 | struct VTermPen pen; |
| 105 | |
| 106 | struct { |
| 107 | int cursor_visible:1; |
| 108 | int cursor_blink:1; |
| 109 | unsigned int cursor_shape:2; |
| 110 | } mode; |
| 111 | } saved; |
| 112 | }; |
| 113 | |
| 114 | struct VTerm |
| 115 | { |
| 116 | VTermAllocatorFunctions *allocator; |
| 117 | void *allocdata; |
| 118 | |
| 119 | int rows; |
| 120 | int cols; |
| 121 | |
| 122 | struct { |
| 123 | int utf8:1; |
| 124 | int ctrl8bit:1; |
| 125 | } mode; |
| 126 | |
| 127 | enum VTermParserState { |
| 128 | NORMAL, |
| 129 | CSI, |
| 130 | OSC, |
| 131 | DCS, |
| 132 | ESC, |
| 133 | ESC_IN_OSC, |
| 134 | ESC_IN_DCS, |
| 135 | } parser_state; |
| 136 | const VTermParserCallbacks *parser_callbacks; |
| 137 | void *cbdata; |
| 138 | |
| 139 | /* len == malloc()ed size; cur == number of valid bytes */ |
| 140 | char *strbuffer; |
| 141 | size_t strbuffer_len; |
| 142 | size_t strbuffer_cur; |
| 143 | |
| 144 | char *outbuffer; |
| 145 | size_t outbuffer_len; |
| 146 | size_t outbuffer_cur; |
| 147 | |
| 148 | VTermState *state; |
| 149 | VTermScreen *screen; |
| 150 | }; |
| 151 | |
| 152 | struct VTermEncoding { |
| 153 | void (*init) (VTermEncoding *enc, void *data); |
| 154 | void (*decode)(VTermEncoding *enc, void *data, |
| 155 | uint32_t cp[], int *cpi, int cplen, |
| 156 | const char bytes[], size_t *pos, size_t len); |
| 157 | }; |
| 158 | |
| 159 | typedef enum { |
| 160 | ENC_UTF8, |
| 161 | ENC_SINGLE_94 |
| 162 | } VTermEncodingType; |
| 163 | |
| 164 | void *vterm_allocator_malloc(VTerm *vt, size_t size); |
| 165 | void vterm_allocator_free(VTerm *vt, void *ptr); |
| 166 | |
| 167 | void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len); |
| 168 | void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args); |
| 169 | void vterm_push_output_sprintf(VTerm *vt, const char *format, ...); |
| 170 | void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...); |
Jeff Sharkey | 73fbfc3 | 2013-04-23 10:34:06 -0700 | [diff] [blame^] | 171 | void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...); |
Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 172 | |
| 173 | void vterm_state_free(VTermState *state); |
| 174 | |
| 175 | void vterm_state_resetpen(VTermState *state); |
| 176 | void vterm_state_setpen(VTermState *state, const long args[], int argcount); |
Jeff Sharkey | 73fbfc3 | 2013-04-23 10:34:06 -0700 | [diff] [blame^] | 177 | int vterm_state_getpen(VTermState *state, long args[], int argcount); |
Jeff Sharkey | 5b78a3a | 2013-02-19 17:28:10 -0800 | [diff] [blame] | 178 | void vterm_state_savepen(VTermState *state, int save); |
| 179 | |
| 180 | enum { |
| 181 | C1_SS3 = 0x8f, |
| 182 | C1_DCS = 0x90, |
| 183 | C1_CSI = 0x9b, |
| 184 | C1_ST = 0x9c, |
| 185 | }; |
| 186 | |
| 187 | void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...); |
| 188 | |
| 189 | void vterm_screen_free(VTermScreen *screen); |
| 190 | |
| 191 | VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation); |
| 192 | |
| 193 | int vterm_unicode_width(int codepoint); |
| 194 | int vterm_unicode_is_combining(int codepoint); |
| 195 | |
| 196 | #endif |