You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
134 lines
3.1 KiB
134 lines
3.1 KiB
// #ifdef APP-VUE
|
|
// import { Signature } from '@signature'
|
|
import { Signature } from './signature'
|
|
export default {
|
|
data() {
|
|
return {
|
|
canvasid: null,
|
|
signature: null,
|
|
observer: null,
|
|
options: {},
|
|
saveCount: 0,
|
|
}
|
|
},
|
|
mounted() {
|
|
this.$nextTick(this.init)
|
|
},
|
|
methods: {
|
|
init() {
|
|
const el = this.$refs.limeSignature||this.$ownerInstance.$el;
|
|
const canvas = document.createElement('canvas')
|
|
canvas.style = 'width: 100%; height: 100%;'
|
|
el.appendChild(canvas)
|
|
this.signature = new Signature({
|
|
el: canvas
|
|
})
|
|
this.signature.pen.setOption(this.options)
|
|
const width = this.signature.canvas.get('width')
|
|
const height = this.signature.canvas.get('height')
|
|
|
|
this.emit({
|
|
changeSize: {
|
|
width,
|
|
height
|
|
}
|
|
})
|
|
},
|
|
undo(v) {
|
|
if (v && this.signature) {
|
|
this.signature.undo()
|
|
}
|
|
},
|
|
clear(v) {
|
|
if (v && this.signature) {
|
|
this.signature.clear()
|
|
}
|
|
},
|
|
save(param) {
|
|
let {fileType = 'png', quality = 1, n} = JSON.parse(param)
|
|
const type = `image/${fileType}`.replace(/jpg/, 'jpeg');
|
|
if (n !== this.saveCount) {
|
|
this.saveCount = n;
|
|
const {backgroundColor, landscape, boundingBox} = this.options
|
|
const flag = landscape || backgroundColor || boundingBox
|
|
const image = this.signature.canvas.get('el').toDataURL(!flag && type, !flag && quality)
|
|
|
|
if (flag) {
|
|
const canvas = document.createElement('canvas')
|
|
const pixelRatio = this.signature.canvas.get('pixelRatio')
|
|
let width = this.signature.canvas.get('width')
|
|
let height = this.signature.canvas.get('height')
|
|
let x = 0
|
|
let y = 0
|
|
|
|
const next = () => {
|
|
const size = [width, height]
|
|
if(landscape) {size.reverse()}
|
|
canvas.width = size[0] * pixelRatio
|
|
canvas.height = size[1] * pixelRatio
|
|
const param = [x, y, width, height, 0 , 0, width, height].map(item => item * pixelRatio)
|
|
const context = canvas.getContext('2d')
|
|
// context.scale(pixelRatio, pixelRatio)
|
|
if (landscape) {
|
|
context.translate(0, width * pixelRatio)
|
|
context.rotate(-Math.PI / 2)
|
|
}
|
|
if (backgroundColor) {
|
|
context.fillStyle = backgroundColor
|
|
context.fillRect(0, 0, width * pixelRatio, height * pixelRatio)
|
|
}
|
|
// param
|
|
context.drawImage(this.signature.canvas.get('el'), ...param)
|
|
this.emit({
|
|
save: canvas.toDataURL(type, quality)
|
|
})
|
|
canvas.remove()
|
|
}
|
|
if(boundingBox) {
|
|
const res = this.signature.getContentBoundingBox()
|
|
width = res.width
|
|
height = res.height
|
|
x = res.startX
|
|
y = res.startY
|
|
next()
|
|
} else {
|
|
next()
|
|
}
|
|
|
|
} else {
|
|
this.emit({
|
|
save: image
|
|
})
|
|
}
|
|
}
|
|
},
|
|
isEmpty(v) {
|
|
if (v && this.signature) {
|
|
const isEmpty = this.signature.isEmpty()
|
|
this.emit({
|
|
isEmpty
|
|
})
|
|
}
|
|
},
|
|
emit(event) {
|
|
this.$ownerInstance.callMethod('onMessage', {
|
|
detail: {
|
|
data: [{
|
|
event
|
|
}]
|
|
}
|
|
})
|
|
},
|
|
update(v) {
|
|
if (v) {
|
|
if (this.signature) {
|
|
this.options = v
|
|
this.signature.pen.setOption(v)
|
|
} else {
|
|
this.options = v
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// #endif
|