128 lines
4.8 KiB
TypeScript
128 lines
4.8 KiB
TypeScript
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namespace pxsim.visuals {
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export class DistanceSliderControl extends ControlView<UltrasonicSensorNode> {
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private group: SVGGElement;
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private gradient: SVGLinearGradientElement;
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private slider: SVGGElement;
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private static SLIDER_HANDLE_HEIGHT = 31;
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private isVisible = false;
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getInnerView(parent: SVGSVGElement, globalDefs: SVGDefsElement) {
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let gid = "gradient-slider-" + this.getId();
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this.group = svg.elt("g") as SVGGElement;
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this.gradient = createGradient(gid, this.getGradientDefinition());
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this.gradient.setAttribute('x1', '-438.37');
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this.gradient.setAttribute('y1', '419.43');
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this.gradient.setAttribute('x2', '-438.37');
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this.gradient.setAttribute('y2', '418.43');
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this.gradient.setAttribute('gradientTransform', 'matrix(50, 0, 0, -110, 21949.45, 46137.67)');
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this.gradient.setAttribute('gradientUnits', 'userSpaceOnUse');
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globalDefs.appendChild(this.gradient);
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this.group = svg.elt("g") as SVGGElement;
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const sliderGroup = pxsim.svg.child(this.group, "g");
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sliderGroup.setAttribute("transform", `translate(0, ${10 + this.getTopPadding()})`)
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const rect = pxsim.svg.child(sliderGroup, "rect", { 'x': this.getLeftPadding(), 'y': 2, 'width': this.getWidth() - this.getLeftPadding() * 2, 'height': this.getContentHeight(), 'style': `fill: url(#${gid})` });
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this.slider = pxsim.svg.child(sliderGroup, "g", { "transform": "translate(0,0)" }) as SVGGElement;
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const sliderInner = pxsim.svg.child(this.slider, "g");
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pxsim.svg.child(sliderInner, "rect", { 'width': this.getWidth(), 'height': DistanceSliderControl.SLIDER_HANDLE_HEIGHT, 'rx': '2', 'ry': '2', 'style': 'fill: #f12a21' });
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pxsim.svg.child(sliderInner, "rect", { 'x': '0.5', 'y': '0.5', 'width': this.getWidth() - 1, 'height': DistanceSliderControl.SLIDER_HANDLE_HEIGHT - 1, 'rx': '1.5', 'ry': '1.5', 'style': 'fill: none;stroke: #b32e29' });
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const dragSurface = svg.child(this.group, "rect", {
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x: 0,
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y: 0,
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width: this.getInnerWidth(),
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height: this.getInnerHeight(),
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opacity: 0,
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cursor: '-webkit-grab'
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})
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let pt = parent.createSVGPoint();
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let captured = false;
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touchEvents(dragSurface, ev => {
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if (captured && (ev as MouseEvent).clientY != undefined) {
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ev.preventDefault();
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this.updateSliderValue(pt, parent, ev as MouseEvent);
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}
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}, ev => {
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captured = true;
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if ((ev as MouseEvent).clientY != undefined) {
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this.updateSliderValue(pt, parent, ev as MouseEvent);
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}
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}, () => {
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captured = false;
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}, () => {
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captured = false;
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})
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return this.group;
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}
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private getLeftPadding() {
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return this.getInnerWidth() * 0.12;
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}
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private getTopPadding() {
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return this.getInnerHeight() / 4;
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}
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private getContentHeight() {
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return this.getInnerHeight() * 0.6;
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}
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onBoardStateChanged() {
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if (!this.isVisible) {
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return;
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}
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const node = this.state;
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const percentage = node.getValue() / 10; /* convert back to cm */
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const y = this.getContentHeight() * percentage / this.getMax();
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this.slider.setAttribute("transform", `translate(0, ${y - DistanceSliderControl.SLIDER_HANDLE_HEIGHT / 2})`);
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}
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onComponentVisible() {
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super.onComponentVisible();
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this.isVisible = true;
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this.onBoardStateChanged();
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}
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onComponentHidden() {
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this.isVisible = false;
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}
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private updateSliderValue(pt: SVGPoint, parent: SVGSVGElement, ev: MouseEvent) {
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let cur = svg.cursorPoint(pt, parent, ev);
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const height = this.getContentHeight(); //DistanceSliderControl.SLIDER_HEIGHT;
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let t = Math.max(0, Math.min(1, (this.getTopPadding() + height + this.top / this.scaleFactor - cur.y / this.scaleFactor) / height))
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const state = this.state;
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state.setDistance((1 - t) * (this.getMax()));
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}
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private getMin() {
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return 0;
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}
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private getMax() {
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return 250; //cm
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}
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private getGradientDefinition(): LinearGradientDefinition {
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return {
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stops: [
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{ offset: 0, color: '#626262' },
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{ offset: 1, color: "#ddd" }
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]
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};
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}
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}
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} |