Mercurial > code > home > repos > light9
annotate web/timeline/adjustable.ts @ 2376:4556eebe5d73
topdir reorgs; let pdm have its src/ dir; separate vite area from light9/
| author | drewp@bigasterisk.com |
|---|---|
| date | Sun, 12 May 2024 19:02:10 -0700 |
| parents | light9/web/timeline/adjustable.ts@d991f7c3485a |
| children |
| rev | line source |
|---|---|
| 2062 | 1 import * as d3 from "d3"; |
| 2 import { debug } from "debug"; | |
| 3 import * as ko from "knockout"; | |
| 4 const log = debug("adjustable"); | |
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5 |
| 2062 | 6 interface Config { |
| 7 // getTarget -> vec2 of current target position | |
| 8 getTarget: () => Vector; | |
| 9 // getSuggestedTargetOffset -> vec2 pixel offset from target | |
| 10 getSuggestedTargetOffset: () => Vector; | |
| 11 // emptyBox -> true if you want no value display | |
| 12 emptyBox: boolean; | |
| 13 } | |
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14 |
| 2062 | 15 export class Adjustable { |
| 16 config: any; | |
| 17 handle: any; | |
| 18 initialTarget: any; | |
| 19 targetDraggedTo: any; | |
| 20 root: any; | |
| 21 // Some value you can edit in the UI, probably by dragging | |
| 22 // stuff. Drawn by light9-adjusters-canvas. This object does the | |
| 23 // layout and positioning. | |
| 24 // | |
| 25 // The way dragging should work is that you start in the yellow *adj | |
| 26 // widget*, wherever it is, but your drag is moving the *target*. The | |
| 27 // adj will travel around too, but it may do extra moves to not bump | |
| 28 // into stuff or to get out from under your finger. | |
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29 |
| 2062 | 30 constructor(config: any) { |
| 31 this.config = config; | |
| 32 this.ctor2(); | |
| 33 } | |
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34 |
| 2062 | 35 ctor2() { |
| 36 // updated later by layout algoritm | |
| 37 return (this.handle = $V([0, 0])); | |
| 38 } | |
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39 |
| 2062 | 40 getDisplayValue() { |
| 41 if (this.config.emptyBox) { | |
| 42 return ""; | |
| 43 } | |
| 44 const defaultFormat = d3.format(".4g")(this._getValue()); | |
| 45 if (this.config.getDisplayValue != null) { | |
| 46 return this.config.getDisplayValue(this._getValue(), defaultFormat); | |
| 47 } | |
| 48 return defaultFormat; | |
| 49 } | |
| 50 _getValue(): any { | |
| 51 throw new Error("Method not implemented."); | |
| 52 } | |
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53 |
| 2062 | 54 getSuggestedHandle() { |
| 55 return this.getTarget().add(this.config.getSuggestedTargetOffset()); | |
| 56 } | |
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57 |
| 2062 | 58 getHandle() { |
| 59 // vec2 of pixels | |
| 60 return this.handle; | |
| 61 } | |
| 62 | |
| 63 getTarget() { | |
| 64 // vec2 of pixels | |
| 65 return this.config.getTarget(); | |
| 66 } | |
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67 |
| 2062 | 68 subscribe(onChange: any) { |
| 69 // change could be displayValue or center or target. This likely | |
| 70 // calls onChange right away if there's any data yet. | |
| 71 throw new Error("not implemented"); | |
| 72 } | |
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73 |
| 2062 | 74 startDrag() { |
| 75 return (this.initialTarget = this.getTarget()); | |
| 76 } | |
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77 |
| 2062 | 78 continueDrag(pos: { add: (arg0: any) => any }) { |
| 79 //# pos is vec2 of pixels relative to the drag start | |
| 80 return (this.targetDraggedTo = pos.add(this.initialTarget)); | |
| 81 } | |
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82 |
| 2062 | 83 endDrag() {} |
| 84 // override | |
| 85 | |
| 86 _editorCoordinates() { | |
| 87 // vec2 of mouse relative to <l9-t-editor> | |
| 88 let rootElem: { getBoundingClientRect: () => any }; | |
| 89 return this.targetDraggedTo; | |
| 90 // let ev = d3.event.sourceEvent; | |
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91 |
| 2062 | 92 // if (ev.target.tagName === "LIGHT9-TIMELINE-EDITOR") { |
| 93 // rootElem = ev.target; | |
| 94 // } else { | |
| 95 // rootElem = ev.target.closest("light9-timeline-editor"); | |
| 96 // } | |
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97 |
| 2062 | 98 // if (ev.touches != null ? ev.touches.length : undefined) { |
| 99 // ev = ev.touches[0]; | |
| 100 // } | |
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101 |
| 2062 | 102 // // storing root on the object to remember it across calls in case |
| 103 // // you drag outside the editor. | |
| 104 // if (rootElem) { | |
| 105 // this.root = rootElem.getBoundingClientRect(); | |
| 106 // } | |
| 107 // const offsetParentPos = $V([ev.pageX - this.root.left, ev.pageY - this.root.top]); | |
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108 |
| 2062 | 109 // return offsetParentPos; |
| 110 } | |
| 111 } | |
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112 |
| 2062 | 113 class AdjustableFloatObservable extends Adjustable { |
| 114 constructor(config: any) { | |
| 115 // config also has: | |
| 116 // observable -> ko.observable we will read and write | |
| 117 // getValueForPos(pos) -> what should we set to if the user | |
| 118 // moves target to this coord? | |
| 119 this.config = config; | |
| 120 super(); | |
| 121 this.ctor2(); | |
| 122 } | |
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123 |
| 2062 | 124 _getValue() { |
| 125 return this.config.observable(); | |
| 126 } | |
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127 |
| 2062 | 128 continueDrag(pos: any) { |
| 129 // pos is vec2 of pixels relative to the drag start. | |
| 130 super.continueDrag(pos); | |
| 131 const epos = this._editorCoordinates(); | |
| 132 const newValue = this.config.getValueForPos(epos); | |
| 133 return this.config.observable(newValue); | |
| 134 } | |
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135 |
| 2062 | 136 subscribe(onChange: () => any) { |
| 137 log("AdjustableFloatObservable subscribe", this.config); | |
| 138 return ko.computed(() => { | |
| 139 this.config.observable(); | |
| 140 return onChange(); | |
| 141 }); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 class AdjustableFloatObject extends Adjustable { | |
| 146 _currentValue: any; | |
| 147 _onChange: any; | |
| 148 constructor(config: any) { | |
| 149 // config also has: | |
| 150 // graph | |
| 151 // subj | |
| 152 // pred | |
| 153 // ctx | |
| 154 // getTargetPosForValue(value) -> getTarget result for value | |
| 155 // getValueForPos | |
| 156 this.config = config; | |
| 157 super(); | |
| 158 this.ctor2(); | |
| 159 if (this.config.ctx == null) { | |
| 160 throw new Error("missing ctx"); | |
| 161 } | |
| 162 // this seems to not fire enough. | |
| 163 this.config.graph.runHandler(this._syncValue.bind(this), `adj sync ${this.config.subj.value} ${this.config.pred.value}`); | |
| 164 } | |
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165 |
| 2062 | 166 _syncValue() { |
| 167 this._currentValue = this.config.graph.floatValue(this.config.subj, this.config.pred); | |
| 168 if (this._onChange) { | |
| 169 return this._onChange(); | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 _getValue() { | |
| 174 // this is a big speedup- callers use _getValue about 4x as much as | |
| 175 // the graph changes and graph.floatValue is slow | |
| 176 return this._currentValue; | |
| 177 } | |
| 178 | |
| 179 getTarget() { | |
| 180 return this.config.getTargetPosForValue(this._getValue()); | |
| 181 } | |
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182 |
| 2062 | 183 subscribe(onChange: any) { |
| 184 // only works on one subscription at a time | |
| 185 if (this._onChange) { | |
| 186 throw new Error("multi subscribe not implemented"); | |
| 187 } | |
| 188 return (this._onChange = onChange); | |
| 189 } | |
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190 |
| 2062 | 191 continueDrag(pos: any) { |
| 192 // pos is vec2 of pixels relative to the drag start | |
| 193 super.continueDrag(pos); | |
| 194 const newValue = this.config.getValueForPos(this._editorCoordinates()); | |
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195 |
| 2062 | 196 return this.config.graph.patchObject(this.config.subj, this.config.pred, this.config.graph.LiteralRoundedFloat(newValue), this.config.ctx); |
| 197 //@_syncValue() | |
| 198 } | |
| 199 } | |
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200 |
| 2062 | 201 class AdjustableFade extends Adjustable { |
| 202 yForV: any; | |
| 203 zoomInX: any; | |
| 204 i0: any; | |
| 205 i1: any; | |
| 206 note: any; | |
| 207 constructor(yForV: any, zoomInX: any, i0: any, i1: any, note: any, offset: any, ctx: any) { | |
| 208 this.yForV = yForV; | |
| 209 this.zoomInX = zoomInX; | |
| 210 this.i0 = i0; | |
| 211 this.i1 = i1; | |
| 212 this.note = note; | |
| 213 super(); | |
| 214 this.config = { | |
| 215 getSuggestedTargetOffset() { | |
| 216 return offset; | |
| 217 }, | |
| 218 getTarget: this.getTarget.bind(this), | |
| 219 ctx, | |
| 220 }; | |
| 221 this.ctor2(); | |
| 222 } | |
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223 |
| 2062 | 224 getTarget() { |
| 225 const mid = this.note.midPoint(this.i0, this.i1); | |
| 226 return $V([this.zoomInX(mid.e(1)), this.yForV(mid.e(2))]); | |
| 227 } | |
| 1644 | 228 |
| 2062 | 229 _getValue() { |
| 230 return this.note.midPoint(this.i0, this.i1).e(1); | |
| 231 } | |
| 1644 | 232 |
| 2062 | 233 continueDrag(pos: { e: (arg0: number) => any }) { |
| 234 // pos is vec2 of pixels relative to the drag start | |
| 235 super.continueDrag(pos); | |
| 236 const { graph } = this.note; | |
| 237 const U = (x: string) => graph.Uri(x); | |
| 238 | |
| 239 const goalCenterSec = this.zoomInX.invert(this.initialTarget.e(1) + pos.e(1)); | |
| 1644 | 240 |
| 2062 | 241 const diamSec = this.note.worldPts[this.i1].e(1) - this.note.worldPts[this.i0].e(1); |
| 242 const newSec0 = goalCenterSec - diamSec / 2; | |
| 243 const newSec1 = goalCenterSec + diamSec / 2; | |
| 1644 | 244 |
| 2062 | 245 const originSec = graph.floatValue(this.note.uri, U(":originTime")); |
| 1644 | 246 |
| 2062 | 247 const p0 = this._makePatch(graph, this.i0, newSec0, originSec, this.config.ctx); |
| 248 const p1 = this._makePatch(graph, this.i1, newSec1, originSec, this.config.ctx); | |
| 1644 | 249 |
| 2062 | 250 return graph.applyAndSendPatch(this._addPatches(p0, p1)); |
| 251 } | |
| 1644 | 252 |
| 2062 | 253 _makePatch( |
| 254 graph: { getObjectPatch: (arg0: any, arg1: any, arg2: any, arg3: any) => any; Uri: (arg0: string) => any; LiteralRoundedFloat: (arg0: number) => any }, | |
| 255 idx: string | number, | |
| 256 newSec: number, | |
| 257 originSec: number, | |
| 258 ctx: any | |
| 259 ) { | |
| 260 return graph.getObjectPatch(this.note.worldPts[idx].uri, graph.Uri(":time"), graph.LiteralRoundedFloat(newSec - originSec), ctx); | |
| 261 } | |
| 1644 | 262 |
| 2062 | 263 _addPatches(p0: { addQuads: { concat: (arg0: any) => any }; delQuads: { concat: (arg0: any) => any } }, p1: { addQuads: any; delQuads: any }) { |
| 264 return { | |
| 1644 | 265 addQuads: p0.addQuads.concat(p1.addQuads), |
| 2062 | 266 delQuads: p0.delQuads.concat(p1.delQuads), |
| 267 }; | |
| 268 } | |
| 269 } |