-
Notifications
You must be signed in to change notification settings - Fork 0
/
text-screen.cc
158 lines (139 loc) · 5.33 KB
/
text-screen.cc
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
/**
* \author: Rafal Banas
*/
#include "text-screen.h"
using namespace std;
ByteStream::series_t terminal::control::MoveHorizontally::toBytes() {
if (shift == 0) {
return ByteStream::series_t();
} else {
auto result = ByteStream::series_t();
result.push_back(ESCAPE_BYTE);
result.push_back('[');
u_char final_byte;
string arg;
if (shift > 0) {
final_byte = 'C';
arg = to_string(shift);
} else {
final_byte = 'D';
arg = to_string(-shift);
}
result.insert(result.end(), arg.begin(), arg.end());
result.push_back(final_byte);
return result;
}
}
ByteStream::series_t terminal::control::MoveVertically::toBytes() {
if (shift == 0) {
return ByteStream::series_t();
} else {
auto result = ByteStream::series_t();
result.push_back(ESCAPE_BYTE);
result.push_back('[');
u_char final_byte;
string arg;
if (shift > 0) {
final_byte = 'B';
arg = to_string(shift);
} else {
final_byte = 'A';
arg = to_string(-shift);
}
result.insert(result.end(), arg.begin(), arg.end());
result.push_back(final_byte);
return result;
}
}
ByteStream::series_t terminal::control::ClearLine::toBytes() {
return ByteStream::series_t({ESCAPE_BYTE, '[', '2', 'K'});
}
ByteStream::series_t terminal::control::Text::toBytes() {
return ByteStream::series_t(text.begin(), text.end());
}
void terminal::TextScreen::clearLine(unsigned long line) {
auto seq = new control::ClearLine();
lines_sequence[line].clear();
lines_sequence[line].push_back(shared_ptr<control::TerminalSequence>(seq));
}
void terminal::TextScreen::clearScreen() {
for (unsigned long i = 0; i < lines_sequence.size(); ++i) {
clearLine(i);
}
}
void terminal::TextScreen::writeAt(unsigned long line, int column, const std::string &text) {
auto save_position = new control::SaveCursorPosition();
auto move_to = new control::MoveHorizontally(column);
auto write_text = new control::Text(text);
auto restore_position = new control::RestoreCursorPosition();
auto to_append = line_t(
{
control_seq_t(save_position),
control_seq_t(move_to),
control_seq_t(write_text),
control_seq_t(restore_position)
});
lines_sequence[line].insert(lines_sequence[line].end(), to_append.begin(), to_append.end());
}
ByteStream::series_t terminal::TextScreen::renderToBytes() {
auto bytes = ByteStream::series_t();
bytes.insert(bytes.end(), control::ClearScreenSeq().begin(), control::ClearScreenSeq().end());
int v_shift = 0;
auto next_line_bytes = control::MoveVertically(1).toBytes();
for (auto &line: lines_sequence) {
for (auto &control_seq : line) {
auto control_bytes = control_seq->toBytes();
bytes.insert(bytes.end(), control_bytes.begin(), control_bytes.end());
}
bytes.insert(bytes.end(), next_line_bytes.begin(), next_line_bytes.end());
++v_shift;
}
auto move_back_bytes = control::MoveVertically(-v_shift).toBytes();
bytes.insert(bytes.end(), move_back_bytes.begin(), move_back_bytes.end());
return bytes;
}
ByteStream::series_t terminal::TextScreen::initialBytes() {
auto bytes = ByteStream::series_t();
int i;
for (i = 0; i < (int) lines_sequence.size(); ++i) {
bytes.push_back(CR_BYTE);
bytes.push_back(LF_BYTE);
}
auto move_back_bytes = control::MoveVertically(-i).toBytes();
bytes.insert(bytes.end(), move_back_bytes.begin(), move_back_bytes.end());
return bytes;
}
void terminal::TextScreen::writeReversedStyleAt(unsigned long line, int column, const std::string &text) {
auto reverse = new control::SetStyle(control::SetStyle::REVERSED);
auto normal = new control::SetStyle(control::SetStyle::NORMAL);
lines_sequence[line].push_back(control_seq_t(reverse));
writeAt(line, column, text);
lines_sequence[line].push_back(control_seq_t(normal));
}
ByteStream::series_t terminal::control::SaveCursorPosition::toBytes() {
return ByteStream::series_t({ESCAPE_BYTE, '[', 's'});
}
ByteStream::series_t terminal::control::RestoreCursorPosition::toBytes() {
return ByteStream::series_t({ESCAPE_BYTE, '[', 'u'});
}
ByteStream::series_t terminal::control::SetStyle::toBytes() {
string style_str = to_string(style);
ByteStream::series_t bytes;
bytes.push_back(ESCAPE_BYTE);
bytes.push_back('[');
bytes.insert(bytes.end(), style_str.begin(), style_str.end());
bytes.push_back('m');
return bytes;
}
const ByteStream::series_t &terminal::control::ClearScreenSeq() {
static ByteStream::series_t *clear_screen_seq = new ByteStream::series_t({ESCAPE_BYTE, '[', '2', 'J'});
return *clear_screen_seq;
}
const ByteStream::series_t &terminal::control::HideCursorSeq() {
static ByteStream::series_t *hide_cursor_seq = new ByteStream::series_t({ESCAPE_BYTE, '[', '?', '2', '5', 'l'});
return *hide_cursor_seq;
}
const ByteStream::series_t &terminal::control::ShowCursorSeq() {
static ByteStream::series_t *show_cursor_seq = new ByteStream::series_t({ESCAPE_BYTE, '[', '?', '2', '5', 'h'});
return *show_cursor_seq;
}