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
|
package lipgloss
import (
"math"
"strings"
"github.com/charmbracelet/x/ansi"
)
// JoinHorizontal is a utility function for horizontally joining two
// potentially multi-lined strings along a vertical axis. The first argument is
// the position, with 0 being all the way at the top and 1 being all the way
// at the bottom.
//
// If you just want to align to the top, center or bottom you may as well just
// use the helper constants Top, Center, and Bottom.
//
// Example:
//
// blockB := "...\n...\n..."
// blockA := "...\n...\n...\n...\n..."
//
// // Join 20% from the top
// str := lipgloss.JoinHorizontal(0.2, blockA, blockB)
//
// // Join on the top edge
// str := lipgloss.JoinHorizontal(lipgloss.Top, blockA, blockB)
func JoinHorizontal(pos Position, strs ...string) string {
if len(strs) == 0 {
return ""
}
if len(strs) == 1 {
return strs[0]
}
var (
// Groups of strings broken into multiple lines
blocks = make([][]string, len(strs))
// Max line widths for the above text blocks
maxWidths = make([]int, len(strs))
// Height of the tallest block
maxHeight int
)
// Break text blocks into lines and get max widths for each text block
for i, str := range strs {
blocks[i], maxWidths[i] = getLines(str)
if len(blocks[i]) > maxHeight {
maxHeight = len(blocks[i])
}
}
// Add extra lines to make each side the same height
for i := range blocks {
if len(blocks[i]) >= maxHeight {
continue
}
extraLines := make([]string, maxHeight-len(blocks[i]))
switch pos { //nolint:exhaustive
case Top:
blocks[i] = append(blocks[i], extraLines...)
case Bottom:
blocks[i] = append(extraLines, blocks[i]...)
default: // Somewhere in the middle
n := len(extraLines)
split := int(math.Round(float64(n) * pos.value()))
top := n - split
bottom := n - top
blocks[i] = append(extraLines[top:], blocks[i]...)
blocks[i] = append(blocks[i], extraLines[bottom:]...)
}
}
// Merge lines
var b strings.Builder
for i := range blocks[0] { // remember, all blocks have the same number of members now
for j, block := range blocks {
b.WriteString(block[i])
// Also make lines the same length
b.WriteString(strings.Repeat(" ", maxWidths[j]-ansi.StringWidth(block[i])))
}
if i < len(blocks[0])-1 {
b.WriteRune('\n')
}
}
return b.String()
}
// JoinVertical is a utility function for vertically joining two potentially
// multi-lined strings along a horizontal axis. The first argument is the
// position, with 0 being all the way to the left and 1 being all the way to
// the right.
//
// If you just want to align to the left, right or center you may as well just
// use the helper constants Left, Center, and Right.
//
// Example:
//
// blockB := "...\n...\n..."
// blockA := "...\n...\n...\n...\n..."
//
// // Join 20% from the top
// str := lipgloss.JoinVertical(0.2, blockA, blockB)
//
// // Join on the right edge
// str := lipgloss.JoinVertical(lipgloss.Right, blockA, blockB)
func JoinVertical(pos Position, strs ...string) string {
if len(strs) == 0 {
return ""
}
if len(strs) == 1 {
return strs[0]
}
var (
blocks = make([][]string, len(strs))
maxWidth int
)
for i := range strs {
var w int
blocks[i], w = getLines(strs[i])
if w > maxWidth {
maxWidth = w
}
}
var b strings.Builder
for i, block := range blocks {
for j, line := range block {
w := maxWidth - ansi.StringWidth(line)
switch pos { //nolint:exhaustive
case Left:
b.WriteString(line)
b.WriteString(strings.Repeat(" ", w))
case Right:
b.WriteString(strings.Repeat(" ", w))
b.WriteString(line)
default: // Somewhere in the middle
if w < 1 {
b.WriteString(line)
break
}
split := int(math.Round(float64(w) * pos.value()))
right := w - split
left := w - right
b.WriteString(strings.Repeat(" ", left))
b.WriteString(line)
b.WriteString(strings.Repeat(" ", right))
}
// Write a newline as long as we're not on the last line of the
// last block.
if !(i == len(blocks)-1 && j == len(block)-1) {
b.WriteRune('\n')
}
}
}
return b.String()
}
|
