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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
SVG.Text = SVG.invent({
// Initialize node
create: function(node) {
this.constructor.call(this, node || SVG.create('text'))
this.dom.leading = new SVG.Number(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 default font
this.attr('font-family', SVG.defaults.attrs['font-family'])
}
// Inherit from
, inherit: SVG.Parent
// Add class methods
, extend: {
// Move over x-axis
x: function(x) {
// act as getter
if (x == null)
return this.attr('x')
return this.attr('x', x)
}
// Move over y-axis
, y: function(y) {
var oy = this.attr('y')
, o = typeof oy === 'number' ? oy - this.bbox().y : 0
// act as getter
if (y == null)
return typeof oy === 'number' ? oy - o : oy
return this.attr('y', typeof y === 'number' ? y + o : y)
}
// Move center over x-axis
, cx: function(x) {
return x == null ? this.bbox().cx : this.x(x - this.bbox().width / 2)
}
// Move center over y-axis
, cy: function(y) {
return y == null ? this.bbox().cy : this.y(y - this.bbox().height / 2)
}
// Set the text content
, text: function(text) {
// act as getter
if (text === undefined){
var text = ''
, children = this.node.childNodes
, firstLine = 0
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 && SVG.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 i = 0, il = text.length; i < il; i++)
this.tspan(text[i]).newLine()
}
// disable build mode and rebuild lines
return this.build(false).rebuild()
}
// Set font size
, size: function(size) {
return this.attr('font-size', size).rebuild()
}
// Set / get leading
, leading: function(value) {
// act as getter
if (value == null)
return this.dom.leading
// act as setter
this.dom.leading = new SVG.Number(value)
return this.rebuild()
}
// Rebuild appearance type
, rebuild: function(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
, blankLineOffset = 0
, dy = this.dom.leading * new SVG.Number(this.attr('font-size'))
this.each(function() {
if (this.dom.newLined) {
this.attr('x', self.attr('x'))
if(this.text() == '\n') {
blankLineOffset += dy
}else{
this.attr('dy', dy + blankLineOffset)
blankLineOffset = 0
}
}
})
this.fire('rebuild')
}
return this
}
// Enable / disable build mode
, build: function(build) {
this._build = !!build
return this
}
// overwrite method from parent to set data properly
, setData: function(o){
this.dom = o
this.dom.leading = new SVG.Number(o.leading || 1.3)
return this
}
}
// Add parent method
, construct: {
// Create text element
text: function(text) {
return this.put(new SVG.Text).text(text)
}
// Create plain text element
, plain: function(text) {
return this.put(new SVG.Text).plain(text)
}
}
})
SVG.Tspan = SVG.invent({
// Initialize node
create: 'tspan'
// Inherit from
, inherit: SVG.Parent
// Add class methods
, extend: {
// Set text content
text: function(text) {
if(text == null) return this.node.textContent + (this.dom.newLined ? '\n' : '')
typeof text === 'function' ? text.call(this, this) : this.plain(text)
return this
}
// Shortcut dx
, dx: function(dx) {
return this.attr('dx', dx)
}
// Shortcut dy
, dy: function(dy) {
return this.attr('dy', dy)
}
// Create new line
, newLine: function() {
// fetch text parent
var t = this.parent(SVG.Text)
// mark new line
this.dom.newLined = true
// apply new hy¡n
return this.dy(t.dom.leading * t.attr('font-size')).attr('x', t.x())
}
}
})
SVG.extend([SVG.Text, SVG.Tspan], {
// Create plain text node
plain: function(text) {
// clear if build mode is disabled
if (this._build === false)
this.clear()
// create text node
this.node.appendChild(document.createTextNode(text))
return this
}
// Create a tspan
, tspan: function(text) {
var tspan = new SVG.Tspan
// clear if build mode is disabled
if (!this._build)
this.clear()
// add new tspan
this.node.appendChild(tspan.node)
return tspan.text(text)
}
// FIXME: Does this also work for textpath?
// Get length of text element
, length: function() {
return this.node.getComputedTextLength()
}
})
|
