Remove option to turn off zoom

This commit is contained in:
Przemek Wiech 2020-04-01 18:57:39 +02:00
parent 2276edab08
commit 36dabfc4a1
2 changed files with 39 additions and 56 deletions

View File

@ -178,7 +178,6 @@ interface Arguments {
chartType: ChartType;
gedcom?: string;
images?: Map<string, string>;
enableZoom: boolean;
}
/**
@ -225,7 +224,6 @@ function getArguments(location: H.Location<any>): Arguments {
gedcom: location.state && location.state.data,
images: location.state && location.state.images,
enableZoom: getParam('enableZoom') !== 'false', // True by default.
};
}
@ -265,8 +263,6 @@ interface State {
/** Source of the data. */
source?: DataSourceEnum;
loadingMore?: boolean;
/** Whether the zoom functionality is enabled. */
enableZoom: boolean;
}
export class App extends React.Component<RouteComponentProps, {}> {
@ -276,7 +272,6 @@ export class App extends React.Component<RouteComponentProps, {}> {
standalone: true,
chartType: ChartType.Hourglass,
showErrorPopup: false,
enableZoom: false,
};
chartRef: Chart | null = null;
@ -392,7 +387,6 @@ export class App extends React.Component<RouteComponentProps, {}> {
standalone: args.standalone,
chartType: args.chartType,
source: args.source,
enableZoom: args.enableZoom,
}),
);
try {
@ -411,7 +405,6 @@ export class App extends React.Component<RouteComponentProps, {}> {
standalone: args.standalone,
chartType: args.chartType,
source: args.source,
enableZoom: args.enableZoom,
}),
);
} catch (error) {
@ -445,7 +438,6 @@ export class App extends React.Component<RouteComponentProps, {}> {
standalone: args.standalone,
chartType: args.chartType,
source: args.source,
enableZoom: args.enableZoom,
loadingMore: false,
}),
);
@ -549,7 +541,6 @@ export class App extends React.Component<RouteComponentProps, {}> {
chartType={this.state.chartType}
onSelection={this.onSelection}
ref={(ref) => (this.chartRef = ref)}
enableZoom={this.state.enableZoom}
/>
{this.state.showSidePanel ? (
<Responsive minWidth={768} id="sidePanel">

View File

@ -14,7 +14,7 @@ import {
FancyChart,
CircleRenderer,
} from 'topola';
import { Responsive } from 'semantic-ui-react';
import {Responsive} from 'semantic-ui-react';
/** How much to zoom when using the +/- buttons. */
const ZOOM_FACTOR = 1.3;
@ -24,30 +24,28 @@ const ZOOM_FACTOR = 1.3;
*
* @param size the size of the chart
*/
function zoomed(size: [number, number], enableZoom: boolean) {
function zoomed(size: [number, number]) {
const parent = d3.select('#svgContainer').node() as Element;
if (enableZoom) {
const scale = d3.event.transform.k;
const offsetX = d3.max([0, (parent.clientWidth - size[0] * scale) / 2]);
const offsetY = d3.max([0, (parent.clientHeight - size[1] * scale) / 2]);
d3.select('#chartSvg')
.attr('width', size[0] * scale)
.attr('height', size[1] * scale)
.attr('transform', `translate(${offsetX}, ${offsetY})`);
d3.select('#chart').attr('transform', `scale(${scale})`);
}
const scale = d3.event.transform.k;
const offsetX = d3.max([0, (parent.clientWidth - size[0] * scale) / 2]);
const offsetY = d3.max([0, (parent.clientHeight - size[1] * scale) / 2]);
d3.select('#chartSvg')
.attr('width', size[0] * scale)
.attr('height', size[1] * scale)
.attr('transform', `translate(${offsetX}, ${offsetY})`);
d3.select('#chart').attr('transform', `scale(${scale})`);
parent.scrollLeft = -d3.event.transform.x;
parent.scrollTop = -d3.event.transform.y;
}
/** Called when the scrollbars are used. */
function scrolled(enableZoom: boolean) {
function scrolled() {
const parent = d3.select('#svgContainer').node() as Element;
const x = parent.scrollLeft + parent.clientWidth / 2;
const y = parent.scrollTop + parent.clientHeight / 2;
const scale = enableZoom ? d3.zoomTransform(parent).k : 1;
const scale = d3.zoomTransform(parent).k;
d3.select(parent).call(d3.zoom().translateTo, x / scale, y / scale);
}
@ -135,7 +133,6 @@ export interface ChartProps {
selection: IndiInfo;
chartType: ChartType;
onSelection: (indiInfo: IndiInfo) => void;
enableZoom: boolean;
}
/** Component showing the genealogy chart and handling transition animations. */
@ -216,24 +213,22 @@ export class Chart extends React.PureComponent<ChartProps, {}> {
const svg = d3.select('#chartSvg');
const parent = d3.select('#svgContainer').node() as Element;
const scale = this.props.enableZoom ? d3.zoomTransform(parent).k : 1;
const scale = d3.zoomTransform(parent).k;
const zoomOutFactor = d3.min([
1,
scale,
parent.clientWidth / chartInfo.size[0],
parent.clientHeight / chartInfo.size[1],
])!;
const extent: [number, number] = this.props.enableZoom
? [d3.max([0.1, zoomOutFactor])!, 2]
: [1, 1];
const extent: [number, number] = [d3.max([0.1, zoomOutFactor])!, 2];
this.zoomBehavior = d3
.zoom()
.scaleExtent(extent)
.translateExtent([[0, 0], chartInfo.size])
.on('zoom', () => zoomed(chartInfo.size, this.props.enableZoom));
.on('zoom', () => zoomed(chartInfo.size));
d3.select(parent)
.on('scroll', () => scrolled(this.props.enableZoom))
.on('scroll', scrolled)
.call(this.zoomBehavior);
const scrollTopTween = (scrollTop: number) => {
@ -309,19 +304,17 @@ export class Chart extends React.PureComponent<ChartProps, {}> {
render() {
return (
<div id="svgContainer">
{this.props.enableZoom ? (
<Responsive minWidth={768} className="zoom">
<button className="zoom-in" onClick={() => this.zoom(ZOOM_FACTOR)}>
+
</button>
<button
className="zoom-out"
onClick={() => this.zoom(1 / ZOOM_FACTOR)}
>
</button>
</Responsive>
) : null}
<Responsive minWidth={768} className="zoom">
<button className="zoom-in" onClick={() => this.zoom(ZOOM_FACTOR)}>
+
</button>
<button
className="zoom-out"
onClick={() => this.zoom(1 / ZOOM_FACTOR)}
>
</button>
</Responsive>
<svg id="chartSvg">
<g id="chart" />
</svg>
@ -334,19 +327,18 @@ export class Chart extends React.PureComponent<ChartProps, {}> {
const svg = document.getElementById('chartSvg')!.cloneNode(true) as Element;
svg.removeAttribute('transform');
if (this.props.enableZoom) {
const parent = d3.select('#svgContainer').node() as Element;
const scale = d3.zoomTransform(parent).k;
svg.setAttribute(
'width',
String(Number(svg.getAttribute('width')) / scale),
);
svg.setAttribute(
'height',
String(Number(svg.getAttribute('height')) / scale),
);
svg.querySelector('#chart')!.removeAttribute('transform');
}
const parent = d3.select('#svgContainer').node() as Element;
const scale = d3.zoomTransform(parent).k;
svg.setAttribute(
'width',
String(Number(svg.getAttribute('width')) / scale),
);
svg.setAttribute(
'height',
String(Number(svg.getAttribute('height')) / scale),
);
svg.querySelector('#chart')!.removeAttribute('transform');
return svg;
}