///
///
///
namespace pxsim.visuals {
const PIXEL_SPACING = PIN_DIST * 3;
const PIXEL_RADIUS = PIN_DIST;
const CANVAS_WIDTH = 1.2 * PIN_DIST;
const CANVAS_HEIGHT = 12 * PIN_DIST;
const CANVAS_VIEW_WIDTH = CANVAS_WIDTH;
const CANVAS_VIEW_HEIGHT = CANVAS_HEIGHT;
const CANVAS_VIEW_PADDING = PIN_DIST * 4;
const CANVAS_LEFT = 1.4 * PIN_DIST;
const CANVAS_TOP = PIN_DIST;
// For the instructions parts list
export function mkNeoPixelPart(xy: Coord = [0, 0]): SVGElAndSize {
const NP_PART_XOFF = -13.5;
const NP_PART_YOFF = -11;
const NP_PART_WIDTH = 87.5;
const NP_PART_HEIGHT = 190;
const NEOPIXEL_PART_IMG = ``;
let [x, y] = xy;
let l = x + NP_PART_XOFF;
let t = y + NP_PART_YOFF;
let w = NP_PART_WIDTH;
let h = NP_PART_HEIGHT;
let img = svg.elt("image");
svg.hydrate(img, {
class: "sim-neopixel-strip", x: l, y: t, width: w, height: h,
href: svg.toDataUri(NEOPIXEL_PART_IMG)
});
return { el: img, x: l, y: t, w: w, h: h };
}
export class NeoPixel {
public el: SVGElement;
public cy: number;
constructor(xy: Coord = [0, 0]) {
let el = svg.elt("rect");
let r = PIXEL_RADIUS;
let [cx, cy] = xy;
let y = cy - r;
svg.hydrate(el, { x: "-50%", y: y, width: "100%", height: r * 2, class: "sim-neopixel" });
this.el = el;
this.cy = cy;
}
public setRgb(rgb: [number, number, number]) {
let hsl = visuals.rgbToHsl(rgb);
let [h, s, l] = hsl;
// at least 70% luminosity
l = Math.max(l, 60);
let fill = `hsl(${h}, ${s}%, ${l}%)`;
this.el.setAttribute("fill", fill);
}
}
export class NeoPixelCanvas {
public canvas: SVGSVGElement;
public pin: number;
public pixels: NeoPixel[];
private viewBox: [number, number, number, number];
private background: SVGRectElement;
constructor(pin: number) {
this.pixels = [];
this.pin = pin;
let el = svg.elt("svg");
svg.hydrate(el, {
"class": `sim-neopixel-canvas`,
"x": "0px",
"y": "0px",
"width": `${CANVAS_WIDTH}px`,
"height": `${CANVAS_HEIGHT}px`,
});
this.canvas = el;
this.background = svg.child(el, "rect", { class: "sim-neopixel-background hidden" });
this.updateViewBox(-CANVAS_VIEW_WIDTH / 2, 0, CANVAS_VIEW_WIDTH, CANVAS_VIEW_HEIGHT);
}
private updateViewBox(x: number, y: number, w: number, h: number) {
this.viewBox = [x, y, w, h];
svg.hydrate(this.canvas, { "viewBox": `${x} ${y} ${w} ${h}` });
svg.hydrate(this.background, { "x": x, "y": y, "width": w, "height": h });
}
public update(colors: RGBW[]) {
if (!colors || colors.length <= 0)
return;
for (let i = 0; i < colors.length; i++) {
let pixel = this.pixels[i];
if (!pixel) {
let cxy: Coord = [0, CANVAS_VIEW_PADDING + i * PIXEL_SPACING];
pixel = this.pixels[i] = new NeoPixel(cxy);
svg.hydrate(pixel.el, { title: `offset: ${i}` });
this.canvas.appendChild(pixel.el);
}
let color = colors[i];
pixel.setRgb(color);
}
//show the canvas if it's hidden
U.removeClass(this.background, "hidden");
//resize if necessary
let [first, last] = [this.pixels[0], this.pixels[this.pixels.length - 1]]
let yDiff = last.cy - first.cy;
let newH = yDiff + CANVAS_VIEW_PADDING * 2;
let [oldX, oldY, oldW, oldH] = this.viewBox;
if (oldH < newH) {
let scalar = newH / oldH;
let newW = oldW * scalar;
this.updateViewBox(-newW / 2, oldY, newW, newH);
}
}
public setLoc(xy: Coord) {
let [x, y] = xy;
svg.hydrate(this.canvas, { x: x, y: y });
}
};
function digitalPinToPinNumber(gpioPin: string): number {
const MICROBIT_ID_IO_P0 = 7; //TODO: don't hardcode this, import enums.d.ts
if (gpioPin == "*") {
return MICROBIT_ID_IO_P0;
}
let pinSplit = gpioPin.split("DigitalPin.P");
U.assert(pinSplit.length === 2, "Unknown format for pin (for NeoPixel): " + gpioPin);
let pinNumStr = pinSplit[1];
let pinNum = Number(pinNumStr) + MICROBIT_ID_IO_P0;
return pinNum
}
function parseNeoPixelMode(modeStr: string): NeoPixelMode {
const modeMap: Map = {
"NeoPixelMode.RGB": NeoPixelMode.RGB,
"NeoPixelMode.RGBW": NeoPixelMode.RGBW
};
return modeMap[modeStr] || NeoPixelMode.RGB;
}
export class NeoPixelView implements IBoardPart {
public style: string = `
.sim-neopixel-canvas {
}
.sim-neopixel-canvas-parent:hover {
transform-origin: center;
transform: scale(4) translateY(-60px);
-moz-transform: scale(4) translateY(-220px);
}
.sim-neopixel-canvas .hidden {
visibility:hidden;
}
.sim-neopixel-background {
fill: rgba(255,255,255,0.9);
}
.sim-neopixel-strip {
}
`;
public element: SVGElement;
public overElement: SVGElement;
public defs: SVGElement[];
private state: NeoPixelState;
private canvas: NeoPixelCanvas;
private part: SVGElAndSize;
private stripGroup: SVGGElement;
private lastLocation: Coord;
private pin: number;
private mode: NeoPixelMode;
public init(bus: EventBus, state: NeoPixelState, svgEl: SVGSVGElement, otherParams: Map): void {
U.assert(!!otherParams["mode"], "NeoPixels assumes a RGB vs RGBW mode is passed to it");
U.assert(!!otherParams["pin"], "NeoPixels assumes a pin is passed to it");
let modeStr = otherParams["mode"];
this.mode = parseNeoPixelMode(modeStr);
this.state = state;
this.stripGroup = svg.elt("g");
this.element = this.stripGroup;
let pinStr = otherParams["pin"];
this.pin = digitalPinToPinNumber(pinStr);
this.lastLocation = [0, 0];
let part = mkNeoPixelPart();
this.part = part;
this.stripGroup.appendChild(part.el);
let canvas = new NeoPixelCanvas(this.pin);
this.canvas = canvas;
let canvasG = svg.elt("g", { class: "sim-neopixel-canvas-parent" });
this.overElement = canvasG;
canvasG.appendChild(canvas.canvas);
this.updateStripLoc();
}
public moveToCoord(xy: Coord): void {
let [x, y] = xy;
let loc: Coord = [x, y];
this.lastLocation = loc;
this.updateStripLoc();
}
private updateStripLoc() {
let [x, y] = this.lastLocation;
U.assert(typeof x === "number" && typeof y === "number", "invalid x,y for NeoPixel strip");
this.canvas.setLoc([x + CANVAS_LEFT, y + CANVAS_TOP]);
svg.hydrate(this.part.el, { transform: `translate(${x} ${y})` }); //TODO: update part's l,h, etc.
}
public updateState(): void {
let colors = this.state.getColors(this.pin, this.mode);
this.canvas.update(colors);
}
public updateTheme(): void { }
}
}