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#ifndef _BUFFER_VIEW_H
#define _BUFFER_VIEW_H
#include <stddef.h>
#include "location.h"
struct buffer;
/**
* A view of a buffer.
*
* This contains the mark and dot as well as the scroll position for a buffer.
*/
struct buffer_view {
/** Location of dot (cursor) */
struct location dot;
/** Location of mark (where a selection starts) */
struct location mark;
/** Current buffer scroll position */
struct location scroll;
/** Pointer to the actual buffer */
struct buffer *buffer;
/** Modeline buffer (may be NULL) */
struct modeline *modeline;
/** Current left fringe size */
uint32_t fringe_width;
/** Does the buffer show line numbers */
bool line_numbers;
/** True if the start of a selection has been set */
bool mark_set;
};
struct buffer_view buffer_view_create(struct buffer *buffer, bool modeline,
bool line_numbers);
struct buffer_view buffer_view_clone(const struct buffer_view *view);
void buffer_view_destroy(struct buffer_view *view);
void buffer_view_add(struct buffer_view *view, uint8_t *txt, uint32_t nbytes);
void buffer_view_goto_beginning(struct buffer_view *view);
void buffer_view_goto_end(struct buffer_view *view);
void buffer_view_goto(struct buffer_view *view, struct location to);
void buffer_view_goto_end_of_line(struct buffer_view *view);
void buffer_view_goto_beginning_of_line(struct buffer_view *view);
void buffer_view_forward_char(struct buffer_view *view);
void buffer_view_backward_char(struct buffer_view *view);
void buffer_view_forward_word(struct buffer_view *view);
void buffer_view_backward_word(struct buffer_view *view);
void buffer_view_forward_line(struct buffer_view *view);
void buffer_view_backward_line(struct buffer_view *view);
void buffer_view_forward_nlines(struct buffer_view *view, uint32_t nlines);
void buffer_view_backward_nlines(struct buffer_view *view, uint32_t nlines);
void buffer_view_forward_delete_char(struct buffer_view *view);
void buffer_view_backward_delete_char(struct buffer_view *view);
void buffer_view_delete_word(struct buffer_view *view);
void buffer_view_kill_line(struct buffer_view *view);
void buffer_view_newline(struct buffer_view *view);
void buffer_view_indent(struct buffer_view *view);
void buffer_view_copy(struct buffer_view *view);
void buffer_view_cut(struct buffer_view *view);
void buffer_view_paste(struct buffer_view *view);
void buffer_view_paste_older(struct buffer_view *view);
void buffer_view_set_mark(struct buffer_view *view);
void buffer_view_clear_mark(struct buffer_view *view);
void buffer_view_set_mark_at(struct buffer_view *view, struct location mark);
struct location buffer_view_dot_to_relative(struct buffer_view *view);
struct location buffer_view_dot_to_visual(struct buffer_view *view);
void buffer_view_undo(struct buffer_view *view);
struct buffer_view_update_params {
struct command_list *commands;
void *(*frame_alloc)(size_t);
uint32_t window_id;
int64_t frame_time;
uint32_t width;
uint32_t height;
uint32_t window_x;
uint32_t window_y;
};
void buffer_view_update(struct buffer_view *view,
struct buffer_view_update_params *params);
#endif
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