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
|
import {
adopt,
extend,
nodeOrNew,
register,
wrapWithAttrCheck
} from '../utils/adopter.js'
import { registerMethods } from '../utils/methods.js'
import SVGNumber from '../types/SVGNumber.js'
import Shape from './Shape.js'
import { globals } from '../utils/window.js'
import * as textable from '../modules/core/textable.js'
export default class Text extends Shape {
// Initialize node
constructor (node, attrs = node) {
super(nodeOrNew('text', node), attrs)
this.dom.leading = new SVGNumber(1.3) // store leading value for rebuilding
this._rebuild = true // enable automatic updating of dy values
this._build = false // disable build mode for adding multiple lines
}
// Set / get leading
leading (value) {
// act as getter
if (value == null) {
return this.dom.leading
}
// act as setter
this.dom.leading = new SVGNumber(value)
return this.rebuild()
}
// Rebuild appearance type
rebuild (rebuild) {
// store new rebuild flag if given
if (typeof rebuild === 'boolean') {
this._rebuild = rebuild
}
// define position of all lines
if (this._rebuild) {
var self = this
var blankLineOffset = 0
var leading = this.dom.leading
this.each(function (i) {
var fontSize = globals.window.getComputedStyle(this.node)
.getPropertyValue('font-size')
var dy = leading * new SVGNumber(fontSize)
if (this.dom.newLined) {
this.attr('x', self.attr('x'))
if (this.text() === '\n') {
blankLineOffset += dy
} else {
this.attr('dy', i ? dy + blankLineOffset : 0)
blankLineOffset = 0
}
}
})
this.fire('rebuild')
}
return this
}
// overwrite method from parent to set data properly
setData (o) {
this.dom = o
this.dom.leading = new SVGNumber(o.leading || 1.3)
return this
}
// Set the text content
text (text) {
// act as getter
if (text === undefined) {
var children = this.node.childNodes
var firstLine = 0
text = ''
for (var i = 0, len = children.length; i < len; ++i) {
// skip textPaths - they are no lines
if (children[i].nodeName === 'textPath') {
if (i === 0) firstLine = 1
continue
}
// add newline if its not the first child and newLined is set to true
if (i !== firstLine && children[i].nodeType !== 3 && adopt(children[i]).dom.newLined === true) {
text += '\n'
}
// add content of this node
text += children[i].textContent
}
return text
}
// remove existing content
this.clear().build(true)
if (typeof text === 'function') {
// call block
text.call(this, this)
} else {
// store text and make sure text is not blank
text = (text + '').split('\n')
// build new lines
for (var j = 0, jl = text.length; j < jl; j++) {
this.newLine(text[j])
}
}
// disable build mode and rebuild lines
return this.build(false).rebuild()
}
}
extend(Text, textable)
registerMethods({
Container: {
// Create text element
text: wrapWithAttrCheck(function (text = '') {
return this.put(new Text()).text(text)
}),
// Create plain text element
plain: wrapWithAttrCheck(function (text = '') {
return this.put(new Text()).plain(text)
})
}
})
register(Text, 'Text')
|
