1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
use std::convert::TryInto as _;
#[derive(Clone, Debug)]
pub struct Row {
cells: Vec<crate::cell::Cell>,
wrapped: bool,
}
impl Row {
pub fn new(cols: u16) -> Self {
Self {
cells: vec![crate::cell::Cell::default(); cols as usize],
wrapped: false,
}
}
pub fn clear(&mut self, bgcolor: crate::attrs::Color) {
for cell in &mut self.cells {
cell.clear(bgcolor);
}
self.wrapped = false;
}
fn cells(&self) -> impl Iterator<Item = &crate::cell::Cell> {
self.cells.iter()
}
pub fn cells_mut(
&mut self,
) -> impl Iterator<Item = &mut crate::cell::Cell> {
self.cells.iter_mut()
}
pub fn get(&self, col: u16) -> Option<&crate::cell::Cell> {
self.cells.get(col as usize)
}
pub fn get_mut(&mut self, col: u16) -> Option<&mut crate::cell::Cell> {
self.cells.get_mut(col as usize)
}
pub fn insert(&mut self, i: usize, cell: crate::cell::Cell) {
self.cells.insert(i, cell);
}
pub fn remove(&mut self, i: usize) {
self.cells.remove(i);
}
pub fn truncate(&mut self, len: usize) {
self.cells.truncate(len);
}
pub fn resize(&mut self, len: usize, cell: crate::cell::Cell) {
self.cells.resize(len, cell);
}
pub fn wrap(&mut self, wrap: bool) {
self.wrapped = wrap;
}
pub fn wrapped(&self) -> bool {
self.wrapped
}
pub fn contents(&self, start: u16, width: u16) -> String {
let mut prev_was_wide = false;
let mut contents = String::new();
for cell in self
.cells()
.skip(start as usize)
.take(width.min(self.content_width(start)) as usize)
{
if prev_was_wide {
prev_was_wide = false;
continue;
}
contents += if cell.has_contents() {
cell.contents()
} else {
" "
};
prev_was_wide = cell.is_wide();
}
contents.trim_end().to_string()
}
pub fn contents_formatted(
&self,
start: u16,
width: u16,
attrs: crate::attrs::Attrs,
) -> (Vec<u8>, crate::attrs::Attrs, u16) {
let mut prev_was_wide = false;
let mut contents = vec![];
let mut prev_attrs = attrs;
let mut cols = 0;
for cell in self
.cells()
.skip(start as usize)
.take(width.min(self.content_width(start)) as usize)
{
if prev_was_wide {
prev_was_wide = false;
continue;
}
let attrs = cell.attrs();
if &prev_attrs != attrs {
contents.append(&mut attrs.escape_code_diff(&prev_attrs));
prev_attrs = *attrs;
}
contents.extend(if cell.has_contents() {
cell.contents().as_bytes()
} else if cell.bgcolor() == crate::attrs::Color::Default {
&b"\x1b[C"[..]
} else {
&b"\x1b[X\x1b[C"[..]
});
prev_was_wide = cell.is_wide();
cols += if prev_was_wide { 2 } else { 1 };
}
(contents, prev_attrs, cols)
}
pub fn contents_diff(
&self,
prev: &Self,
start: u16,
width: u16,
attrs: crate::attrs::Attrs,
) -> (Vec<u8>, crate::attrs::Attrs, u16) {
let mut prev_was_wide = false;
let mut skip = 0;
let mut contents = vec![];
let mut prev_attrs = attrs;
let mut cols = 0;
for (cell, prev_cell) in self
.cells()
.zip(prev.cells())
.skip(start as usize)
.take(width as usize)
{
if prev_was_wide {
prev_was_wide = false;
continue;
}
if cell == prev_cell {
prev_was_wide = cell.is_wide();
skip += if prev_was_wide { 2 } else { 1 };
} else {
if skip > 0 {
contents.extend(format!("\x1b[{}C", skip).as_bytes());
cols += skip;
skip = 0;
}
let attrs = cell.attrs();
if &prev_attrs != attrs {
contents.append(&mut attrs.escape_code_diff(&prev_attrs));
prev_attrs = *attrs;
}
contents.extend(if cell.has_contents() {
cell.contents().as_bytes()
} else {
b"\x1b[X\x1b[C"
});
prev_was_wide = cell.is_wide();
cols += if prev_was_wide { 2 } else { 1 };
}
}
(contents, prev_attrs, cols)
}
fn content_width(&self, start: u16) -> u16 {
for (col, cell) in
self.cells.iter().skip(start as usize).enumerate().rev()
{
if cell.has_contents()
|| cell.bgcolor() != crate::attrs::Color::Default
{
let width: u16 = col.try_into().unwrap();
return width + 1;
}
}
0
}
}
|
