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135 lines
2.9 KiB
135 lines
2.9 KiB
#ifndef SCREEN_H
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#define SCREEN_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <esp8266.h>
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#include <httpd.h>
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/**
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* This module handles the virtual screen and operations on it.
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*
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* It is interfaced by calls from the ANSI parser, and the screen
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* data can be rendered for the front-end.
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*
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* ---
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*
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* Colors are 0-15, 0-7 dim, 8-15 bright.
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*
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* NORMAL
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* 0 black, 1 red, 2 green, 3 yellow
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* 4 blue, 5 mag, 6 cyan, 7 white
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*
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* BRIGHT
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* 8 black, 9 red, 10 green, 11 yellow
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* 12 blue, 13 mag, 14 cyan, 15 white
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*
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* Coordinates are 0-based, left-top is the origin.
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* X grows to the right, Y to the bottom.
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*
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* +---->
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* | X
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* |
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* V Y
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*
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*/
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/**
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* Maximum screen size (determines size of the static data array)
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*
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* TODO May need adjusting if there are size problems when flashing the ESP.
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* We could also try to pack the Cell struct to a single 32bit word.
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*/
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#define MAX_SCREEN_SIZE (80*25)
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#define SCREEN_DEF_W 26 //!< Default screen width
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#define SCREEN_DEF_H 10 //!< Default screen height
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#define SCREEN_DEF_BG 0 //!< Default screen background
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#define SCREEN_DEF_FG 7 //!< Default screen foreground
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typedef enum {
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CLEAR_TO_CURSOR=0, CLEAR_FROM_CURSOR=1, CLEAR_ALL=2
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} ClearMode;
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typedef uint8_t Color;
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typedef int Coordinate;
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httpd_cgi_state ICACHE_FLASH_ATTR
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screenSerializeToBuffer(char *buffer, size_t buf_len, void **data);
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/** Init the screen */
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void screen_init(void);
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/** Change the screen size */
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void screen_resize(Coordinate rows, Coordinate cols);
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// --- Clearing ---
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/** Screen reset to default state */
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void screen_reset(void);
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/** Clear entire screen, set all to 7 on 0 */
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void screen_clear(ClearMode mode);
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/** Line reset to gray-on-white, empty */
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void screen_clear_line(ClearMode mode);
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/** Shift screen upwards */
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void screen_scroll_up(unsigned int lines);
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/** Shift screen downwards */
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void screen_scroll_down(unsigned int lines);
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// --- Cursor control ---
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/** Set cursor position */
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void screen_cursor_set(Coordinate x, Coordinate y);
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/** Set cursor X position */
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void screen_cursor_set_x(Coordinate x);
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/** Set cursor Y position */
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void screen_cursor_set_y(Coordinate y);
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/** Relative cursor move */
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void screen_cursor_move(int dx, int dy);
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/** Save the cursor pos */
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void screen_cursor_save(void);
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/** Restore the cursor pos */
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void screen_cursor_restore(void);
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/** Enable cursor display */
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void screen_cursor_enable(bool enable);
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// --- Colors ---
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/** Set cursor foreground color */
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void screen_set_fg(Color color);
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/** Set cursor background coloor */
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void screen_set_bg(Color color);
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/** make foreground bright */
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void screen_set_bright_fg(void);
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/** Set cursor foreground and background color */
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void screen_set_colors(Color fg, Color bg);
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/** Invert colors */
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void screen_inverse(bool inverse);
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/** Set a character in the cursor color, move to right with wrap. */
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void screen_putchar(char c);
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#if 0
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/** Debug dump */
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void screen_dd(void);
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#endif
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extern void screen_notifyChange(void);
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#endif // SCREEN_H
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