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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
#ifndef EL__TERMINAL_SCREEN_H
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#define EL__TERMINAL_SCREEN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct bitfield;
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struct module;
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struct screen_char;
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struct string;
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struct terminal;
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/** The terminal's screen manages */
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struct terminal_screen {
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/** This is the screen's image, character by character. */
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struct screen_char *image;
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/** The previous screen's image, used for optimizing actual drawing. */
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struct screen_char *last_image;
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/** The current and the previous cursor positions. */
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int cx, cy;
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int lcx, lcy;
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/** Whether to redraw screen */
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unsigned int was_dirty:1;
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struct bitfield *dirty;
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};
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/** Mark the screen ready for redrawing. */
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void set_screen_dirty(struct terminal_screen *screen, int from, int to);
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/** Initializes a screen. Returns NULL upon allocation failure. */
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struct terminal_screen *init_screen(void);
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/** Cleans up after the screen. */
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void done_screen(struct terminal_screen *screen);
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/** Update the size of the previous and the current screen image to
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* hold @a x time @a y chars. */
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void resize_screen(struct terminal *term, int x, int y);
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/** Updates the terminal screen. */
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void redraw_screen(struct terminal *term);
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/** Erases the entire screen and moves the cursor to the upper left corner. */
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void erase_screen(struct terminal *term);
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/** Meeep! */
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void beep_terminal(struct terminal *term);
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struct string *add_cursor_move_to_string(struct string *screen, int y, int x);
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extern struct module terminal_screen_module;
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#ifdef __cplusplus
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}
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#endif
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#endif
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