Files
web/src/components/chart/RungBuilder.vue
2024-04-17 22:18:34 -04:00

395 lines
11 KiB
Vue

<template>
<builder-panel :order="order" :builder="builder" :build-tranches="buildTranches"
:adjust-shapes="adjustShapes" :delete-shapes="deleteShapes">
<div style="min-width: 3em; font-size: larger" :style="colorStyle" class="align-self-start ml-2 pt-3">{{ name }}
</div>
<div>
<v-text-field type="number" v-model="rungs"
density="compact" hide-details class="mx-1 my-2" variant="outlined"
label="Rungs"
:color="color" :base-color="color" min="1"
:disabled="valueA===null"
style="width: 4.5em;"
/>
</div>
<slot/>
<div v-if="co.drawing" class="d-flex align-center pl-3">
<v-icon icon="mdi-chat-alert-outline" color="grey" class="mr-1"/>
Click the chart!
</div>
<div v-if="rungs>1" class="mx-2 d-flex align-center">
<v-slider v-if="rungs>1" direction="vertical" min="-100" max="100" v-model="skew100"
class="no-slider-bg ml-2 mr-4" hide-details/>
<v-text-field type="number" v-model="skew100" min="-100" max="100"
density="compact" hide-details variant="outlined" label="Skew" step="5"
:color="color" :base-color="color">
<template v-slot:prepend>
<v-btn icon="mdi-scale-balance" variant="plain" @click="builder.skew=0" :color="color"/>
</template>
</v-text-field>
</div>
</builder-panel>
</template>
<script setup>
import BuilderPanel from "@/components/chart/BuilderPanel.vue";
import {useOrderStore} from "@/store/store.js";
import {deleteBuilder, linearWeights, useChartOrderStore} from "@/orderbuild.js";
import {useTheme} from "vuetify";
import {linspace, sideColor} from "@/misc.js";
import {computed, onUnmounted, watchEffect} from "vue";
import Color from "color";
import {cancelDrawing, chart} from "@/charts/chart.js";
const os = useOrderStore()
const co = useChartOrderStore()
const theme = useTheme().current
const valueA = defineModel('valueA')
const valueB = defineModel('valueB')
const props = defineProps({
name: String,
order: Object,
builder: Object,
buildTranches: Function,
stdWidth: Number,
shape: Function, // shape() -> Shape
mode: { type: Number, default: 0 }, // rung addition mode: 0 = split, 1 = extend
flip: { type: Boolean, default: false }, // if true, the skew slider is flipped upside-down
getModelValue: Function, // getModelValue(model) -> value
setModelValue: Function, // setModelValue(model,value) -> void
getPointsValue: Function, // getValueFromPoints(points) -> value
setValues: Function, // setValues(values:Array) -> void
setWeights: Function, // setValues(values:Array) -> void
})
const flippedSign = computed(()=>props.flip?-1:1)
const skew100 = computed( {
get() {return flippedSign.value*props.builder.skew*100},
set(v) {props.builder.skew = flippedSign.value*v/100; }
} )
// validity checks
watchEffect(()=>{
const rungs = props.builder.rungs
// const prev = props.builder.valid
props.builder.valid = rungs >= 1 && valueA.value && (rungs < 2 || valueB.value)
// console.log('valid?', prev, props.builder.valid, rungs, valueA.value, valueB.value)
})
const rungs = computed({
get() {
return props.builder.rungs
},
set(r) {
if (!r) {
props.builder.rungs = 1
return
}
r = Number(r)
props.builder.rungs = r
const b = valueB.value
// console.log('set rungs', r, valueA.value, b)
if ( r > 0 && b === null ) {
// convert single shape to a range
if (props.mode===0) {
const width = props.stdWidth
const mid = valueA.value
valueA.value = mid - width/2
valueB.value = mid + width/2
}
else if (props.mode===1 ) {
valueB.value = valueA.value + props.stdWidth
}
else
throw Error(`Unknown rung mode ${props.mode}`)
}
else if ( r === 1 && b !== null ) {
// convert from a range to a single shape
if (props.mode===0)
valueA.value = (valueA.value + b) / 2
valueB.value = null
}
else {
// from multi to multi
if (props.mode===1)
valueB.value = valueA.value + props.stdWidth * (r-1)
}
}
})
const values = computed(()=>{
let a = valueA.value
let b = valueB.value
const r = props.builder.rungs
let result
if ( a===null || !r )
result = [] // no data
else if (r===1)
result = [a] // single shape
else
result = linspace(a, b, r) // linear spacing
props.setValues(result)
return result;
})
const weights = computed(() => {
// const skew = props.flip ? -props.builder.skew : props.builder.skew
const ws = linearWeights(props.builder.rungs, -props.builder.skew)
if (props.setWeights)
props.setWeights(ws)
return ws
})
const amountSymbol = computed(()=>props.order.amountIsTokenA ? co.selectedSymbol.base.s : co.selectedSymbol.quote.s )
// colors
function computeDefaultColor() {
const index = props.order.builders.indexOf(props.builder)
return sideColor(props.order.buy, index)
}
const defaultColor = computeDefaultColor()
const color = computed({
get() {return props.builder.color},
set(v) {
const maxLightness = 60
// noinspection JSUnresolvedReference
const c = new Color(v).hsl()
props.builder.color = c.saturation <= maxLightness ? v : c.lightness(maxLightness).rgb().string()
}
})
const colorStyle = computed(() => {
return {'color': color.value}
})
//
// SHAPE MANAGEMENT
//
// we keep two special control shapes as the edges of the range, with deletable shapes in-between
function createShape(value, model, onModel, onDelete) {
props.setModelValue(model, value)
return new props.shape(model, onModel, onDelete) // props.shape is the constructor function
}
function translateOnDrag(shape) {
const oldOnPoints = shape.onPoints
shape.onPoints = function (points) {
// console.log('translateOnDrag', this.beingDragged(), shape.ourPoints)
if (!this.beingDragged()) {
oldOnPoints.call(this, points)
return
}
const prev = props.getModelValue(this.model)
oldOnPoints.call(this, points)
const cur = props.getModelValue(this.model)
const delta = cur - prev
// console.log('delta', points, shape.ourPoints, prev, cur, delta)
if (delta !== 0) {
valueA.value += delta
valueB.value += delta
}
}
}
// function translateOnDrag(shape) {
// const oldOnPoints = shape.onPoints
// shape.onPoints = function (points) {
// console.log('translateOnDrag', this.beingDragged(), shape.ourPoints)
// if (!this.beingDragged()) {
// oldOnPoints.call(this, points)
// return
// }
//
// // todo vectorize
// const prev = props.getPointsValue(shape.ourPoints)
// const cur = props.getPointsValue(points)
// const delta = cur - prev
// console.log('delta', points, shape.ourPoints, prev, cur, delta)
// if (delta !== 0) {
// valueA.value += delta
// valueB.value += delta
// }
// oldOnPoints.call(this, points)
// }
// }
const shapeA = createShape(valueA.value, {color: defaultColor},
function (model) {
const value = props.getModelValue(model);
if (value!==null && value!==undefined)
valueA.value = value;
if (model.color)
color.value = model.color
},
deleteSelf)
if (props.mode===1)
translateOnDrag(shapeA)
const shapeB = createShape(valueB.value, {color:defaultColor},
function (model) {
const value = props.getModelValue(model);
if (value!==null && value!==undefined)
valueB.value = value;
if (model.color)
color.value = model.color
},
deleteSelf)
function interiorOnModel(model) {
if (model.color)
color.value = model.color
}
let interiorShapes = []
function createInteriorShape(index) {
const shape = new props.shape(makeModel(index), interiorOnModel, deleteSelf)
translateOnDrag(shape)
interiorShapes.push(shape)
}
function removeInteriorShape() {
if (interiorShapes.length) {
const shape = interiorShapes.pop()
shape.delete()
}
}
function makeModel(index) {
const ws = weights.value
const alloc = props.builder.allocation * ws[index];
const result = {
color: color.value,
allocation: alloc,
maxAllocation: Math.max(...weights.value),
amount: props.order.amount * alloc,
amountSymbol: amountSymbol.value,
}
props.setModelValue(result, values.value[index])
return result
}
let group = null
function adjustShapes() {
// this is where all the shapes are created or adjusted
// console.log('adjustShapes()', valueA.value, valueB.value)
const vs = values.value
//
//
// const selection = []
// if (shapeA.id !== null)
// selection.push(shapeA.id)
// if (shapeB.id !== null)
// selection.push(shapeB.id)
// for( const s of interiorShapes ) {
// if (s.id !== null)
// selection.push(s.id)
// }
// if (group===null) {
// if (selection.length) {
// const gc = chart.shapesGroupController();
// group = gc.createGroupFromSelection(selection)
// }
// }
// else {
// const gc = chart.shapesGroupController();
// const shapes = gc.shapesInGroup(group)
//
// console.log('shapes', group, shapes)
// for (const s of selection)
// if (!shapes.includes(s)) {
// console.log('add shape to group', group, s)
// gc.addShapeToGroup(group, s)
// }
// }
//
//
if (vs.length)
cancelDrawing()
// shape properties
if( vs.length === 0 ) {
shapeA.delete()
shapeB.delete()
for( const shape of interiorShapes )
shape.delete()
interiorShapes = []
}
else if (vs.length === 1) {
//
// SINGLE SHAPE
//
shapeA.setModel(makeModel(0))
shapeB.delete()
if (interiorShapes.length) {
for( const shape of interiorShapes )
shape.delete()
interiorShapes = []
}
}
else {
//
// VALUE RANGE
//
shapeA.setModel(makeModel(0))
shapeB.setModel(makeModel(vs.length-1))
const numInterior = Math.max(0,vs.length-2);
// trim excess interior shapes
while( interiorShapes.length > numInterior )
removeInteriorShape()
// adjust the interior shape values and/or add shapes
for( let i=1; i<vs.length-1; i++ ) {
if (i-1 === interiorShapes.length)
createInteriorShape(i)
else
interiorShapes[i-1].setModel(makeModel(i))
}
}
return ''
}
function deleteSelf() {
if (valueA.value===null)
cancelDrawing()
deleteBuilder(props.order, props.builder);
}
function deleteShapes() {
cancelDrawing()
shapeA.delete()
shapeB.delete()
for (const shape of interiorShapes)
shape.delete()
interiorShapes = []
}
onUnmounted(deleteShapes)
if (!valueA.value)
shapeA.createOrDraw(); // initiate drawing mode
</script>
<style scoped lang="scss">
:deep(.v-slider.v-input--vertical > .v-input__control) {
min-height: 5em !important;
}
:deep(.v-slider.no-slider-bg .v-slider-track__fill) {
background-color: inherit !important;
}
</style>