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/* -*- c-basic-offset:2; tab-width:2; indent-tabs-mode:nil -*- */
#ifndef __UI_SELECTION_H__
#define __UI_SELECTION_H__
#include <pobl/bl_types.h> /* u_int */
#include <vt_str.h>
#include "ui.h"
#if !defined(USE_XLIB) && !defined(USE_WAYLAND)
#define SELECTION_STYLE_CHANGEABLE
#endif
typedef enum {
SEL_CHAR = 0x1,
SEL_WORD = 0x2,
SEL_LINE = 0x3,
} ui_sel_mode_t;
typedef struct ui_sel_event_listener {
void *self;
int (*select_in_window)(void *);
void (*reverse_color)(void *, int, int, int, int, int);
void (*restore_color)(void *, int, int, int, int, int);
} ui_sel_event_listener_t;
typedef struct ui_selection {
ui_sel_event_listener_t *sel_listener;
vt_char_t *sel_str;
u_int sel_len;
/*
* Be careful that value of col must be munis in rtl line.
* +-----------------------------+
* | a a a a a a a|<= RTL line
* -1 -2 -3 -4 -5 -6 -7 <= index
*/
int base_col_l;
int base_row_l;
int base_col_r;
int base_row_r;
int beg_col;
int beg_row;
int end_col;
int end_row;
int lock_col;
int lock_row;
int prev_col;
int prev_row;
int8_t is_selecting; /* ui_sel_mode_t is stored */
int8_t is_reversed;
int8_t is_locked;
int8_t is_rect;
#ifdef SELECTION_STYLE_CHANGEABLE
int8_t str_not_updated;
#endif
} ui_selection_t;
#ifdef SELECTION_STYLE_CHANGEABLE
void ui_set_change_selection_immediately(int flag);
#endif
void ui_sel_init(ui_selection_t *sel, ui_sel_event_listener_t *listener);
void ui_sel_final(ui_selection_t *sel);
void ui_start_selection(ui_selection_t *sel, int col_l, int row_l, int col_r, int row_r,
ui_sel_mode_t mode, int is_rect);
int ui_selecting(ui_selection_t *sel, int col, int row);
int ui_stop_selecting(ui_selection_t *sel);
int ui_restore_selected_region_color_except_logs(ui_selection_t *sel);
int ui_reverse_selected_region_color_except_logs(ui_selection_t *sel);
int ui_restore_selected_region_color(ui_selection_t *sel);
int ui_reverse_selected_region_color(ui_selection_t *sel);
void ui_selection_set_str(ui_selection_t *sel, vt_char_t *str, u_int len);
#define ui_selection_has_str(sel) ((sel)->sel_str != NULL && (sel)->sel_len > 0)
#ifdef SELECTION_STYLE_CHANGEABLE
#define ui_selection_str_is_not_updated(sel) ((sel)->str_not_updated)
#else
#define ui_selection_str_is_not_updated(sel) (0)
#endif
int ui_sel_clear(ui_selection_t *sel);
int ui_selected_region_is_changed(ui_selection_t *sel, int col, int row, u_int base);
void ui_sel_line_scrolled_out(ui_selection_t *sel, int min_row);
#define ui_is_selecting(sel) ((sel)->is_selecting)
#define ui_sel_is_reversed(sel) ((sel)->is_reversed)
int ui_is_after_sel_right_base_pos(ui_selection_t *sel, int col, int row);
int ui_is_before_sel_left_base_pos(ui_selection_t *sel, int col, int row);
void ui_sel_lock(ui_selection_t *sel);
#endif
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