mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2025-01-29 06:30:07 +00:00
253 lines
7.1 KiB
TypeScript
253 lines
7.1 KiB
TypeScript
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import { Toolbar } from "../common/emu";
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declare var VirtualList;
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export interface WaveformMeta {
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label : string;
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len : number;
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}
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export interface WaveformProvider {
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getSignalMetadata() : WaveformMeta[];
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getSignalData(index:number, start:number, len:number) : number[];
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}
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export class WaveformView {
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parent : HTMLElement;
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wfp : WaveformProvider;
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toolbar : Toolbar;
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wavelist;
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meta : WaveformMeta[];
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lines : HTMLCanvasElement[] = [];
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zoom : number = 8;
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t0 : number = 0;
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tsel : number = -1;
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pageWidth : number;
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clocksPerPage : number;
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clockMax : number;
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hexformat : boolean = false;
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constructor(parent:HTMLElement, wfp:WaveformProvider) {
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this.parent = parent;
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this.wfp = wfp;
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this.recreate();
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}
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wtimer;
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recreate() {
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clearTimeout(this.wtimer);
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this.wtimer = setTimeout(() => {
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this.destroy();
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// create new thing
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this._recreate();
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}, 0);
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}
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destroy() {
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// remove old thing
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if (this.wavelist) {
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$(this.wavelist.container).remove();
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this.wavelist = null;
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}
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if (this.toolbar) {
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this.toolbar.destroy();
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this.toolbar = null;
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}
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}
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_recreate() {
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this.meta = this.wfp.getSignalMetadata();
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if (!this.meta) return;
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var width = this.pageWidth = $(this.parent).width();
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var rowHeight = 40; // TODO
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this.clocksPerPage = Math.floor(this.pageWidth/this.zoom) - 1;
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this.clockMax = 0;
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this.wavelist = new VirtualList({
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w: width,
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h: $(this.parent).height(),
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itemHeight: rowHeight,
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totalRows: this.meta.length,
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generatorFn: (row : number) => {
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var metarow = this.meta[row]; // TODO: why null?
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var s = metarow != null ? metarow.label : "";
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var linediv = document.createElement("div");
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var canvas = document.createElement("canvas");
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canvas.width = width - 12;
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canvas.height = rowHeight;
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linediv.appendChild(canvas); //document.createTextNode(s));
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linediv.classList.add('waverow');
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this.lines[row] = canvas;
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this.refreshRow(row);
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return linediv;
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}
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});
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var wlc = this.wavelist.container;
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wlc.tabIndex = -1; // make it focusable
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//wlc.style = "overflow-x: hidden"; // TODO?
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this.toolbar = new Toolbar(this.parent, this.parent);
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$(this.parent).append(wlc);
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var down = false;
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var selfn = (e) => {
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this.setSelTime(e.offsetX / this.zoom + this.t0 - 0.5);
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};
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$(wlc).mousedown( (e) => {
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down = true;
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selfn(e);
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//if (e['pointerId']) e.target.setPointerCapture(e['pointerId']);
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});
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$(wlc).mousemove( (e) => {
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if (down) selfn(e);
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});
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$(wlc).mouseup( (e) => {
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down = false;
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//if (e['pointerId']) e.target.releasePointerCapture(e['pointerId']);
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});
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this.toolbar.add('=', 'Zoom In', 'glyphicon-zoom-in', (e,combo) => {
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this.setZoom(this.zoom * 2);
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});
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this.toolbar.add('+', 'Zoom In', null, (e,combo) => {
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this.setZoom(this.zoom * 2);
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});
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this.toolbar.add('-', 'Zoom Out', 'glyphicon-zoom-out', (e,combo) => {
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this.setZoom(this.zoom / 2);
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});
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this.toolbar.add('ctrl+shift+left', 'Move to beginning', 'glyphicon-backward', (e,combo) => {
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this.setSelTime(0);
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this.setOrgTime(0);
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});
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this.toolbar.add('ctrl+left', 'Move left 1/4 page', 'glyphicon-fast-backward', (e,combo) => {
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this.setSelTime(this.tsel - this.clocksPerPage/4);
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});
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this.toolbar.add('left', 'Move left 1 clock', 'glyphicon-step-backward', (e,combo) => {
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this.setSelTime(this.tsel - 1);
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});
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this.toolbar.add('right', 'Move right 1 clock', 'glyphicon-step-forward', (e,combo) => {
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this.setSelTime(this.tsel + 1);
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});
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this.toolbar.add('ctrl+right', 'Move right 1/4 page', 'glyphicon-fast-forward', (e,combo) => {
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this.setSelTime(this.tsel + this.clocksPerPage/4);
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});
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this.toolbar.add('h', 'Switch between hex/decimal format', 'glyphicon-barcode', (e,combo) => {
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this.hexformat = !this.hexformat;
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this.refresh();
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});
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$(window).resize(() => {
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this.recreate();
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}); // TODO: remove?
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}
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roundT(t : number) {
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t = Math.round(t);
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t = Math.max(0, t); // make sure >= 0
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t = Math.min(this.clockMax + this.clocksPerPage/2, t); // make sure <= end
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return t;
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}
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setOrgTime(t : number) {
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this.t0 = this.roundT(t);
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this.refresh();
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}
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setEndTime(t : number) {
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this.setOrgTime(t - this.clocksPerPage);
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}
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setSelTime(t : number) {
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t = this.roundT(t);
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if (t >= this.t0 + this.clocksPerPage - 1)
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this.t0 += this.clocksPerPage / 4;
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if (t <= this.t0 + 2)
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this.t0 -= this.clocksPerPage / 4;
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this.tsel = t;
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this.setOrgTime(this.t0);
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}
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setZoom(zoom : number) {
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this.zoom = Math.max(1, Math.min(64, zoom));
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this.clocksPerPage = Math.ceil(this.pageWidth/this.zoom); // TODO: refactor into other one
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this.refresh();
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}
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refresh() {
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if (!this.meta) this.recreate();
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if (!this.meta) return;
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for (var i=0; i<this.meta.length; i++) {
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this.refreshRow(i);
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}
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}
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refreshRow(row : number) {
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var canvas = this.lines[row];
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var meta = this.meta[row];
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if (!canvas || !meta) return;
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var isclk = (meta.label == 'clk');
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var w = canvas.width;
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var h = canvas.height;
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var ctx = canvas.getContext("2d");
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ctx.font = "14px Andale Mono, Lucida Console, monospace";
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// clear to black
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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// draw waveform
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var fh = 12;
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var b1 = fh+4;
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var b2 = 4;
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var h2 = h-b1-b2;
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var yrange = ((1<<meta.len)-1) || 0;
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var data = this.wfp.getSignalData(row, this.t0, Math.ceil(w/this.zoom));
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this.clockMax = Math.max(this.clockMax, this.t0 + data.length);
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var printvals = meta.len > 1 && this.zoom >= 32;
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var ycen = b1+h2-1;
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ctx.fillStyle = "#336633";
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ctx.fillRect(0, fh/2, 3, b1+h2-fh/2); // draw left tag
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ctx.strokeStyle = ctx.fillStyle = "#66ff66";
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// draw waveform
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ctx.beginPath();
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var x = 0;
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var y = 0;
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var lastval = -1;
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var radix = this.hexformat ? 16 : 10;
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for (var i=0; i<data.length; i++) {
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var val = data[i];
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if (printvals && val != lastval && x < w-100) { // close to right edge? omit
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ctx.fillText(val.toString(radix), x+this.zoom/4, ycen);
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}
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lastval = val;
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if (i>0)
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ctx.lineTo(x,y);
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y = b1 + (1.0 - val/yrange) * h2;
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if (!isclk) x += this.zoom*(1/8);
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if (i==0)
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ctx.moveTo(x,y);
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else
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ctx.lineTo(x,y);
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if (isclk)
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x += this.zoom;
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else
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x += this.zoom*(7/8);
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}
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ctx.stroke();
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// draw selection thingie
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if (this.tsel >= this.t0) {
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ctx.strokeStyle = ctx.fillStyle = "#ff66ff";
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ctx.beginPath();
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x = (this.tsel - this.t0)*this.zoom + this.zoom/2;
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ctx.moveTo(x, 0);
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ctx.lineTo(x, h);
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ctx.stroke();
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// print value
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var val = data[this.tsel - this.t0];
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ctx.textAlign = 'right';
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if (val !== undefined) {
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var s = val.toString(radix);
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ctx.fillText(s, w-fh, ycen);
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}
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}
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// draw labels
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ctx.fillStyle = "white";
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ctx.textAlign = "left";
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ctx.fillText(meta.label, 5, fh);
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}
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}
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