127 lines
3.7 KiB
JavaScript
127 lines
3.7 KiB
JavaScript
import { Graph, RubberBandHandler, KeyHandler, constants, Rectangle } from '@maxgraph/core';
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import { globalTypes } from '../.storybook/preview';
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export default {
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title: 'Labels/Labels',
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argTypes: {
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...globalTypes,
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rubberBand: {
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type: 'boolean',
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defaultValue: true,
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},
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},
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};
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const Template = ({ label, ...args }) => {
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const container = document.createElement('div');
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container.style.position = 'relative';
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container.style.overflow = 'hidden';
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container.style.width = `${args.width}px`;
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container.style.height = `${args.height}px`;
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container.style.background = 'url(/images/grid.gif)';
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container.style.cursor = 'default';
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// Creates the graph inside the given container
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const graph = new Graph(container);
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graph.setTooltips(true);
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graph.htmlLabels = true;
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graph.vertexLabelsMovable = true;
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if (args.rubberBand) new RubberBandHandler(graph);
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new KeyHandler(graph);
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const graphHandler = graph.getPlugin('SelectionHandler');
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// Do not allow removing labels from parents
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graphHandler.removeCellsFromParent = false;
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// Autosize labels on insert where autosize=1
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graph.autoSizeCellsOnAdd = true;
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// Allows moving of relative cells
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graph.isCellLocked = function (cell) {
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return this.isCellsLocked();
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};
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graph.isCellResizable = function (cell) {
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const geo = cell.getGeometry();
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return geo == null || !geo.relative;
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};
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// Truncates the label to the size of the vertex
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graph.getLabel = function (cell) {
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const label = this.labelsVisible ? this.convertValueToString(cell) : '';
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const geometry = cell.getGeometry();
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if (
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!cell.isCollapsed() &&
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geometry != null &&
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(geometry.offset == null || (geometry.offset.x == 0 && geometry.offset.y == 0)) &&
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cell.isVertex() &&
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geometry.width >= 2
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) {
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const style = this.getCellStyle(cell);
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const fontSize = style.fontSize || constants.DEFAULT_FONTSIZE;
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const max = geometry.width / (fontSize * 0.625);
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if (max < label.length) {
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return `${label.substring(0, max)}...`;
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}
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}
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return label;
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};
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// Enables wrapping for vertex labels
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graph.isWrapping = function (cell) {
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return cell.isCollapsed();
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};
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// Enables clipping of vertex labels if no offset is defined
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graph.isLabelClipped = function (cell) {
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const geometry = cell.getGeometry();
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return (
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geometry != null &&
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!geometry.relative &&
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(geometry.offset == null || (geometry.offset.x == 0 && geometry.offset.y == 0))
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);
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};
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// Gets the default parent for inserting new cells. This
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// is normally the first child of the root (ie. layer 0).
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const parent = graph.getDefaultParent();
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// Adds cells to the model in a single step
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graph.batchUpdate(() => {
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const v1 = graph.insertVertex(parent, null, 'vertexLabelsMovable', 20, 20, 80, 30);
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// Places sublabels inside the vertex
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const label11 = graph.insertVertex(v1, null, 'Label1', 0.5, 1, 0, 0, null, true);
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const label12 = graph.insertVertex(v1, null, 'Label2', 0.5, 0, 0, 0, null, true);
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const v2 = graph.insertVertex(
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parent,
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null,
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'Wrapping and clipping is enabled only if the cell is collapsed, otherwise the label is truncated if there is no manual offset.',
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200,
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150,
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80,
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30
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);
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v2.geometry.alternateBounds = new Rectangle(0, 0, 80, 30);
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const e1 = graph.insertEdge(parent, null, 'edgeLabelsMovable', v1, v2);
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// Places sublabels inside the vertex
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const label21 = graph.insertVertex(v2, null, 'Label1', 0.5, 1, 0, 0, null, true);
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const label22 = graph.insertVertex(v2, null, 'Label2', 0.5, 0, 0, 0, null, true);
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});
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return container;
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};
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export const Default = Template.bind({});
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