Symbol palette in React Diagram component
25 Jan 202424 minutes to read
The SymbolPalette displays a collection of palettes. The palette shows a set of nodes and connectors. It allows to drag and drop the nodes and connectors into the diagram.
Create symbol palette
The width and height properties of the symbol palette allows to define the size of the symbol palette.
import {
SymbolPalette,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent id="container" width={"100%"} height={"700px"} />
);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);Add palettes to SymbolPalette
A palette allows to display a group of related symbols and it textually annotates the group with its header.
A Palettes can be added as a collection of symbol groups.
The collection of predefined symbols can be added in palettes using the symbols property.
To initialize a palette, define a JSON object with the property ID that is unique ID is set to the palettes.
The following code example illustrates how to define a palette and how its added to symbol palette.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
export function getSvgShapes() {
let basicShapes = [
{
id: "node2",
style: { fill: "none" },
annotations: [{ content: "Start \n Text Editing" }],
shape: {
type: "Native",
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'<path id="path1" transform="rotate(0,128,128) translate(59.1078108549118,59) scale(4.3125,4.3125) " fill="#FFFFFF" d="M12.12701,24.294998C12.75201,24.294998 13.258998,24.803009 13.258998,25.428009 13.258998,26.056 12.75201,26.563004 12.12701,26.563004 11.499019,26.563004 10.993007,26.056 10.993007,25.428009 10.993007,24.803009 11.499019,24.294998 12.12701,24.294998z M7.9750035,24.294998C8.6010101,24.294998 9.1090057,24.803009 9.1090057,25.428009 9.1090057,26.056 8.6010101,26.563004 7.9750035,26.563004 7.3480199,26.563004 6.8399942,26.056 6.8399942,25.428009 6.8399942,24.803009 7.3480199,24.294998 7.9750035,24.294998z M7.9750035,20.286011C8.6010101,20.286011 9.1090057,20.792999 9.1090057,21.419006 9.1090057,22.044006 8.6010101,22.552002 7.9750035,22.552002 7.3500035,22.552002 6.8420084,22.044006 6.8420084,21.419006 6.8420084,20.792999 7.3500035,20.286011 7.9750035,20.286011z M18.499994,19.317001C18.313013,19.317001,18.156,19.472,18.156,19.656006L18.156,27.01001C18.156,27.195007,18.313013,27.350006,18.499994,27.350006L29.521993,27.350006C29.707998,27.350006,29.865988,27.195007,29.865988,27.01001L29.865988,19.656006C29.865988,19.472,29.707998,19.317001,29.521993,19.317001z M17.243006,17.443008L30.778003,17.443008C31.425007,17.445007,31.947986,17.962006,31.950001,18.602997L31.950001,28.542007C31.947986,29.182999,31.425007,29.702011,30.778003,29.703003L25.654012,29.703003C25.511007,29.703003 25.399008,29.824997 25.413992,29.964996 25.430013,30.13501 25.452993,30.360001 25.477011,30.559998 25.506002,30.809998 25.727987,30.980011 25.976003,31.033997L27.756002,31.419006C27.907003,31.452011 28.015005,31.584 28.015005,31.738007 28.015005,31.883011 27.895986,32 27.74999,32L27.571005,32 20.450004,32 20.318016,32C20.171013,32 20.053001,31.883011 20.053001,31.738007 20.053001,31.585007 20.161003,31.452011 20.312004,31.419998L22.115989,31.033005C22.35601,30.98201 22.572014,30.815002 22.596,30.574005 22.616997,30.363007 22.636009,30.130997 22.648002,29.960007 22.658012,29.819 22.542015,29.70401 22.399986,29.70401L17.243006,29.703003C16.596002,29.702011,16.072992,29.182999,16.071008,28.542007L16.071008,18.602997C16.072992,17.962006,16.596002,17.445007,17.243006,17.443008z M7.9750035,16.133011C8.6020172,16.133011 9.1100128,16.641006 9.1100128,17.268005 9.1100128,17.893997 8.6020172,18.402008 7.9750035,18.402008 7.3489964,18.402008 6.8410013,17.893997 6.8410013,17.268005 6.8410013,16.641006 7.3489964,16.133011 7.9750035,16.133011z M24.027,13.762009C24.654014,13.762009 25.16201,14.270004 25.16201,14.895996 25.16201,15.522003 24.654014,16.029999 24.027,16.029999 23.400993,16.029999 22.892998,15.522003 22.892998,14.895996 22.892998,14.270004 23.400993,13.762009 24.027,13.762009z M24.027,9.6110077C24.653007,9.6110077 25.161003,10.119003 25.161003,10.74501 25.161003,11.37001 24.653007,11.878006 24.027,11.878006 23.402,11.878006 22.894005,11.37001 22.894005,10.74501 22.894005,10.119003 23.402,9.6110077 24.027,9.6110077z M24.027,5.6000061C24.654014,5.6000061 25.16201,6.1080017 25.16201,6.7350006 25.16201,7.3610077 24.654014,7.8690033 24.027,7.8690033 23.400993,7.8690033 22.892998,7.3610077 22.892998,6.7350006 22.892998,6.1080017 23.400993,5.6000061 24.027,5.6000061z M19.876001,5.6000061C20.503013,5.6000061 21.011009,6.1080017 21.011009,6.7350006 21.011009,7.3610077 20.503013,7.8690033 19.876001,7.8690033 19.249994,7.8690033 18.743006,7.3610077 18.743006,6.7350006 18.743006,6.1080017 19.249994,5.6000061 19.876001,5.6000061z M2.4290157,1.8740082C2.2420037,1.8740082,2.0850215,2.029007,2.0850215,2.2140045L2.0850215,9.5680084C2.0850215,9.753006,2.2420037,9.9069977,2.4290157,9.9069977L13.451014,9.9069977C13.637995,9.9069977,13.795008,9.753006,13.795008,9.5680084L13.795008,2.2140045C13.795008,2.029007,13.637995,1.8740082,13.451014,1.8740082z M1.1730042,0L14.706996,0C15.353999,0.0019989014,15.877009,0.51899719,15.878993,1.1600037L15.878993,11.100006C15.877009,11.740005,15.353999,12.26001,14.706996,12.26001L9.5830047,12.26001C9.4399994,12.26001 9.3290069,12.382004 9.3420074,12.52301 9.3600128,12.692001 9.3829925,12.917999 9.4060028,13.117004 9.4349945,13.367004 9.6570099,13.53801 9.9049957,13.591003L11.684994,13.975998C11.835994,14.009003 11.945003,14.141998 11.945003,14.294998 11.945003,14.440002 11.826015,14.557007 11.679012,14.557007L11.499996,14.557007 4.3789966,14.557007 4.2470081,14.557007C4.1000049,14.557007 3.9819935,14.440002 3.9819937,14.294998 3.9819935,14.141998 4.0899952,14.009003 4.2409961,13.977005L6.0450113,13.589996C6.2860086,13.539001 6.501005,13.373001 6.5249918,13.130997 6.5460184,12.921005 6.5650003,12.688004 6.5769937,12.516998 6.5870035,12.376999 6.4710062,12.262009 6.3290079,12.262009L1.1730042,12.26001C0.52499391,12.26001,0.0020143806,11.740005,0,11.100006L0,1.1600037C0.0020143806,0.51899719,0.52499391,0.0019989014,1.1730042,0z"/>' +
"</g>",
},
},
];
return basicShapes;
}
export function getHtmlShapes() {
let basicShapes = [
{
id: "HTML",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content: '<div style="height:100%;width:100%;"><button type="button" style="width:100%;overflow:hidden">HTML</button></div>',
},
},
{
id: "Checkbox",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content: '<div><div style="height:50%;width:100%;"><input type="checkbox" value="Yes" style="width:25%">Yes</input></div>' +
'<div style="height:50%;width:100%;"><input type="checkbox" value="No" style="width:25%">No</input></div></div>',
},
},
{
id: "Dropdown",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content: '<div style="height:100%;width:100%;"><select style="width:100%"><option>SVG</option><option>Canvas</option></select></div>',
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "document",
shape: {
type: "Flow",
shape: "Document",
},
},
{
id: "predefinedprocess",
shape: {
type: "Flow",
shape: "PreDefinedProcess",
},
},
];
return flowShapes;
}
//Initializes connector symbols for the symbol palette
export function getConnectors() {
let connectorSymbols = [
{
id: "Link1",
type: "Orthogonal",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
targetDecorator: {
shape: "Arrow",
},
},
{
id: "Link21",
type: "Straight",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
targetDecorator: {
shape: "Arrow",
},
},
{
id: "link33",
type: "Bezier",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
style: {
strokeWidth: 2,
},
targetDecorator: {
shape: "None",
},
},
];
return connectorSymbols;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="palette1"
//Defines how many palettes can be at expanded mode at a time
expandMode={"Multiple"}
//Defines the palette collection
palettes={[
{
//Sets the id of the palette
id: "flow",
//Sets whether the palette expands/collapse its children
expanded: true,
//Adds the palette items to palette
symbols: getFlowShapes(),
//Sets the header text of the palette
title: "Flow Shapes",
iconCss: "e-ddb-icons e-flow",
},
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "svg",
expanded: true,
symbols: getSvgShapes(),
title: "SVG Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "html",
expanded: true,
symbols: getHtmlShapes(),
title: "HTML Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "connectors",
expanded: true,
symbols: getConnectors(),
title: "Connectors",
iconCss: "e-ddb-icons e-connector",
},
]}
//Specifies the default size to render symbols
symbolHeight={80} symbolWidth={80}/>);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
ConnectorModel,
Connector,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
export function getSvgShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "node2",
style: { fill: "none" },
annotations: [{ content: "Start \n Text Editing" }],
shape: {
type: "Native",
content:
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},
},
{
id: "syncfusion",
style: { fill: "none" },
shape: {
type: "Native",
content:
'<g xmlns="http://www.w3.org/2000/svg">' +
'<rect height="256" width="256" fill="#34353F"/>' +
'<path id="path1" transform="rotate(0,128,128) translate(59,61.2230899333954) scale(4.3125,4.3125) " fill="#FFFFFF" d="M18.88501,23.042998L26.804993,23.042998 26.804993,30.969001 18.88501,30.969001z M9.4360352,23.042998L17.358032,23.042998 17.358032,30.969001 9.4360352,30.969001z M0.014038086,23.042998L7.9360352,23.042998 7.9360352,30.969001 0.014038086,30.969001z M18.871033,13.609001L26.791016,13.609001 26.791016,21.535994 18.871033,21.535994z M9.4219971,13.609001L17.342041,13.609001 17.342041,21.535994 9.4219971,21.535994z M0,13.609001L7.9219971,13.609001 7.9219971,21.535994 0,21.535994z M9.4219971,4.1859968L17.342041,4.1859968 17.342041,12.113998 9.4219971,12.113998z M0,4.1859968L7.9219971,4.1859968 7.9219971,12.113998 0,12.113998z M25.846008,0L32,5.2310026 26.773987,11.382995 20.619019,6.155998z"/>' +
"</g>",
},
},
{
id: "network",
style: { fill: "none" },
shape: {
type: "Native",
content:
'<g xmlns="http://www.w3.org/2000/svg">' +
'<rect height="256" width="256" fill="#34353F"/>' +
'<path id="path1" transform="rotate(0,128,128) translate(59.1078108549118,59) scale(4.3125,4.3125) " fill="#FFFFFF" d="M12.12701,24.294998C12.75201,24.294998 13.258998,24.803009 13.258998,25.428009 13.258998,26.056 12.75201,26.563004 12.12701,26.563004 11.499019,26.563004 10.993007,26.056 10.993007,25.428009 10.993007,24.803009 11.499019,24.294998 12.12701,24.294998z M7.9750035,24.294998C8.6010101,24.294998 9.1090057,24.803009 9.1090057,25.428009 9.1090057,26.056 8.6010101,26.563004 7.9750035,26.563004 7.3480199,26.563004 6.8399942,26.056 6.8399942,25.428009 6.8399942,24.803009 7.3480199,24.294998 7.9750035,24.294998z M7.9750035,20.286011C8.6010101,20.286011 9.1090057,20.792999 9.1090057,21.419006 9.1090057,22.044006 8.6010101,22.552002 7.9750035,22.552002 7.3500035,22.552002 6.8420084,22.044006 6.8420084,21.419006 6.8420084,20.792999 7.3500035,20.286011 7.9750035,20.286011z M18.499994,19.317001C18.313013,19.317001,18.156,19.472,18.156,19.656006L18.156,27.01001C18.156,27.195007,18.313013,27.350006,18.499994,27.350006L29.521993,27.350006C29.707998,27.350006,29.865988,27.195007,29.865988,27.01001L29.865988,19.656006C29.865988,19.472,29.707998,19.317001,29.521993,19.317001z M17.243006,17.443008L30.778003,17.443008C31.425007,17.445007,31.947986,17.962006,31.950001,18.602997L31.950001,28.542007C31.947986,29.182999,31.425007,29.702011,30.778003,29.703003L25.654012,29.703003C25.511007,29.703003 25.399008,29.824997 25.413992,29.964996 25.430013,30.13501 25.452993,30.360001 25.477011,30.559998 25.506002,30.809998 25.727987,30.980011 25.976003,31.033997L27.756002,31.419006C27.907003,31.452011 28.015005,31.584 28.015005,31.738007 28.015005,31.883011 27.895986,32 27.74999,32L27.571005,32 20.450004,32 20.318016,32C20.171013,32 20.053001,31.883011 20.053001,31.738007 20.053001,31.585007 20.161003,31.452011 20.312004,31.419998L22.115989,31.033005C22.35601,30.98201 22.572014,30.815002 22.596,30.574005 22.616997,30.363007 22.636009,30.130997 22.648002,29.960007 22.658012,29.819 22.542015,29.70401 22.399986,29.70401L17.243006,29.703003C16.596002,29.702011,16.072992,29.182999,16.071008,28.542007L16.071008,18.602997C16.072992,17.962006,16.596002,17.445007,17.243006,17.443008z M7.9750035,16.133011C8.6020172,16.133011 9.1100128,16.641006 9.1100128,17.268005 9.1100128,17.893997 8.6020172,18.402008 7.9750035,18.402008 7.3489964,18.402008 6.8410013,17.893997 6.8410013,17.268005 6.8410013,16.641006 7.3489964,16.133011 7.9750035,16.133011z M24.027,13.762009C24.654014,13.762009 25.16201,14.270004 25.16201,14.895996 25.16201,15.522003 24.654014,16.029999 24.027,16.029999 23.400993,16.029999 22.892998,15.522003 22.892998,14.895996 22.892998,14.270004 23.400993,13.762009 24.027,13.762009z M24.027,9.6110077C24.653007,9.6110077 25.161003,10.119003 25.161003,10.74501 25.161003,11.37001 24.653007,11.878006 24.027,11.878006 23.402,11.878006 22.894005,11.37001 22.894005,10.74501 22.894005,10.119003 23.402,9.6110077 24.027,9.6110077z M24.027,5.6000061C24.654014,5.6000061 25.16201,6.1080017 25.16201,6.7350006 25.16201,7.3610077 24.654014,7.8690033 24.027,7.8690033 23.400993,7.8690033 22.892998,7.3610077 22.892998,6.7350006 22.892998,6.1080017 23.400993,5.6000061 24.027,5.6000061z M19.876001,5.6000061C20.503013,5.6000061 21.011009,6.1080017 21.011009,6.7350006 21.011009,7.3610077 20.503013,7.8690033 19.876001,7.8690033 19.249994,7.8690033 18.743006,7.3610077 18.743006,6.7350006 18.743006,6.1080017 19.249994,5.6000061 19.876001,5.6000061z M2.4290157,1.8740082C2.2420037,1.8740082,2.0850215,2.029007,2.0850215,2.2140045L2.0850215,9.5680084C2.0850215,9.753006,2.2420037,9.9069977,2.4290157,9.9069977L13.451014,9.9069977C13.637995,9.9069977,13.795008,9.753006,13.795008,9.5680084L13.795008,2.2140045C13.795008,2.029007,13.637995,1.8740082,13.451014,1.8740082z M1.1730042,0L14.706996,0C15.353999,0.0019989014,15.877009,0.51899719,15.878993,1.1600037L15.878993,11.100006C15.877009,11.740005,15.353999,12.26001,14.706996,12.26001L9.5830047,12.26001C9.4399994,12.26001 9.3290069,12.382004 9.3420074,12.52301 9.3600128,12.692001 9.3829925,12.917999 9.4060028,13.117004 9.4349945,13.367004 9.6570099,13.53801 9.9049957,13.591003L11.684994,13.975998C11.835994,14.009003 11.945003,14.141998 11.945003,14.294998 11.945003,14.440002 11.826015,14.557007 11.679012,14.557007L11.499996,14.557007 4.3789966,14.557007 4.2470081,14.557007C4.1000049,14.557007 3.9819935,14.440002 3.9819937,14.294998 3.9819935,14.141998 4.0899952,14.009003 4.2409961,13.977005L6.0450113,13.589996C6.2860086,13.539001 6.501005,13.373001 6.5249918,13.130997 6.5460184,12.921005 6.5650003,12.688004 6.5769937,12.516998 6.5870035,12.376999 6.4710062,12.262009 6.3290079,12.262009L1.1730042,12.26001C0.52499391,12.26001,0.0020143806,11.740005,0,11.100006L0,1.1600037C0.0020143806,0.51899719,0.52499391,0.0019989014,1.1730042,0z"/>' +
"</g>",
},
},
];
return basicShapes;
}
export function getHtmlShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "HTML",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content:
'<div style="height:100%;width:100%;"><button type="button" style="width:100%;overflow:hidden">HTML</button></div>',
},
},
{
id: "Checkbox",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content:
'<div><div style="height:50%;width:100%;"><input type="checkbox" value="Yes" style="width:25%">Yes</input></div>' +
'<div style="height:50%;width:100%;"><input type="checkbox" value="No" style="width:25%">No</input></div></div>',
},
},
{
id: "Dropdown",
borderColor: "black",
borderWidth: 1,
shape: {
type: "HTML",
content:
'<div style="height:100%;width:100%;"><select style="width:100%"><option>SVG</option><option>Canvas</option></select></div>',
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "document",
shape: {
type: "Flow",
shape: "Document",
},
},
{
id: "predefinedprocess",
shape: {
type: "Flow",
shape: "PreDefinedProcess",
},
},
];
return flowShapes;
}
//Initializes connector symbols for the symbol palette
export function getConnectors(): ConnectorModel[] {
let connectorSymbols: ConnectorModel[] = [
{
id: "Link1",
type: "Orthogonal",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
targetDecorator: {
shape: "Arrow",
},
},
{
id: "Link21",
type: "Straight",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
targetDecorator: {
shape: "Arrow",
},
},
{
id: "link33",
type: "Bezier",
sourcePoint: {
x: 0,
y: 0,
},
targetPoint: {
x: 40,
y: 40,
},
style: {
strokeWidth: 2,
},
targetDecorator: {
shape: "None",
},
},
];
return connectorSymbols;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="palette1"
//Defines how many palettes can be at expanded mode at a time
expandMode={"Multiple"}
//Defines the palette collection
palettes={[
{
//Sets the id of the palette
id: "flow",
//Sets whether the palette expands/collapse its children
expanded: true,
//Adds the palette items to palette
symbols: getFlowShapes(),
//Sets the header text of the palette
title: "Flow Shapes",
iconCss: "e-ddb-icons e-flow",
},
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "svg",
expanded: true,
symbols: getSvgShapes(),
title: "SVG Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "html",
expanded: true,
symbols: getHtmlShapes(),
title: "HTML Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "connectors",
expanded: true,
symbols: getConnectors(),
title: "Connectors",
iconCss: "e-ddb-icons e-connector",
},
]}
//Specifies the default size to render symbols
symbolHeight={80}
symbolWidth={80}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);Customize the palette header
Palettes can be annotated with its header texts.
The title displayed as the header text of palette.
The expanded property of palette allows to expand/collapse its palette items.
The height property of palette sets the height of the symbol group.
The iconCss property sets the content of the symbol group.
The description defines the text to be displayed and how that is to be handled in getSymbolInfo.
Also, any HTML element into a palette header can be embedded by defining the getSymbolInfo property.
The following code example illustrates how to customize palette headers.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={"Multiple"} palettes={[
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
]} symbolHeight={80} symbolWidth={80}
//Sets the size, appearance and description of a symbol
getSymbolInfo={(symbol) => {
if (symbol["text"] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol["text"],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: "Wrap",
},
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
},
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
Node,
ConnectorModel,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={"Multiple"}
palettes={[
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
]}
symbolHeight={80}
symbolWidth={80}
//Sets the size, appearance and description of a symbol
getSymbolInfo={(symbol) => {
if (symbol["text"] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol["text"],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: "Wrap",
},
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
},
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);Restrict expansion of the palette panel
The symbol palette panel can be restricted from getting expanded. The cancel argument of the paletteExpanding property defines whether the palette’s panel should be expanded or collapsed. By default, the panel is expanded. This restriction can be done for each of the palettes in the symbol palette as desired.
In the following code example, the basic shapes palette is restricted from getting collapsed whereas the swimlane shapes palette can be expanded or collapsed.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={"Multiple"} palettes={[
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "flow",
expanded: true,
symbols: getFlowShapes(),
title: "Flow Shapes",
iconCss: "e-ddb-icons e-flow",
},
]} symbolHeight={80} symbolWidth={80} paletteExpanding={function (args) {
if (args.palette.id === "basic") {
// Basic shapes panel does not collapse
args.cancel = true;
}
else {
// Swimlane shapes panel collapse and expand
args.cancel = false;
}
}}
//Sets the size, appearance and description of a symbol
getSymbolInfo={(symbol) => {
if (symbol["text"] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol["text"],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: "Wrap",
},
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
},
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
Node,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={"Multiple"}
palettes={[
{
id: "basic",
expanded: true,
symbols: getBasicShapes(),
title: "Basic Shapes",
iconCss: "e-ddb-icons e-basic",
},
{
id: "flow",
expanded: true,
symbols: getFlowShapes(),
title: "Flow Shapes",
iconCss: "e-ddb-icons e-flow",
},
]}
symbolHeight={80}
symbolWidth={80}
paletteExpanding={function (args) {
if (args.palette.id === "basic") {
// Basic shapes panel does not collapse
args.cancel = true;
} else {
// Swimlane shapes panel collapse and expand
args.cancel = false;
}
}}
//Sets the size, appearance and description of a symbol
getSymbolInfo={(symbol: Node | Connector): SymbolInfo => {
if (symbol["text"] !== undefined) {
return {
width: 75,
height: 40,
//Add or Remove the Text for Symbol palette item.
description: {
//Defines the symbol description
text: symbol["text"],
//Defines how to handle the text when its size exceeds the given symbol size
overflow: "Wrap",
},
};
}
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
},
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById("diagram"));
root.render(<App />);Stretch the symbols into the palette
The fit property defines whether the symbol has to be fit inside the size, that is defined by the symbol palette. For example, when you resize the rectangle in the symbol, ratio of the rectangle size has to be maintained rather changing into square shape. The following code example illustrates how to customize the symbol size.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]} symbolHeight={80} symbolWidth={80}
//Sets the size, appearance and description of a symbol
getSymbolInfo={function (symbol) {
// Enables to fit the content into the specified palette item size
return {
fit: true,
};
// When it is set as false, the element is rendered with actual node size
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]}
symbolHeight={80}
symbolWidth={80}
//Sets the size, appearance and description of a symbol
getSymbolInfo={function (symbol: NodeModel) {
// Enables to fit the content into the specified palette item size
return {
fit: true,
};
// When it is set as false, the element is rendered with actual node size
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);Add/Remove symbols to palette at runtime
-
Symbols can be added to palette at runtime by using public method,
addPaletteItem. -
Symbols can be removed from palette at runtime by using public method,
removePaletteItem.
Customize the size of symbols
The size of the individual symbol can be customized. The symbolWidth and symbolHeight properties of node enables you to define the size of the symbols. The following code example illustrates how to change the size of a symbol.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]}
//Specifies the size of the symbol
symbolHeight={80} symbolWidth={80}
//Sets the space to be left around a symbol
symbolMargin={{
left: 15,
right: 15,
top: 15,
bottom: 15,
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
ConnectorModel,
Connector,
Node,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]}
//Specifies the size of the symbol
symbolHeight={80}
symbolWidth={80}
//Sets the space to be left around a symbol
symbolMargin={{
left: 15,
right: 15,
top: 15,
bottom: 15,
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);The symbolMargin property is used to create the space around
elements, outside of any defined borders.
Symbol preview
The symbol preview size of the palette items can be customized using symbolPreview.
The width and height properties of SymbolPalette enables you to define the preview size to all the symbol palette items.
The offset of the dragging helper relative to the mouse cursor.
The following code example illustrates how to change the preview size of a palette item.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]} symbolHeight={80} symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}} getSymbolInfo={(symbol) => {
return {
fit: true,
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
},
},
];
return basicShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
]}
symbolHeight={80}
symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
getSymbolInfo={(symbol) => {
return {
fit: true,
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);Default settings
While adding more number of symbols such as nodes and connectors to the palette, define the default settings for those objects through the getNodeDefaults and the getConnectorDefaults properties of diagram allows to define the default settings for nodes and connectors.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "document",
shape: {
type: "Flow",
shape: "Document",
},
},
{
id: "predefinedprocess",
shape: {
type: "Flow",
shape: "PreDefinedProcess",
},
},
];
return flowShapes;
}
function setPaletteNodeDefaults(node) {
node.width = 100;
node.height = 100;
node.style.strokeColor = "#3A3A3A";
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={"Multiple"} palettes={[
{
id: "flow",
expanded: true,
symbols: getFlowShapes(),
title: "Flow Shapes",
},
]} symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}} symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
//Returns the default properties of node
getNodeDefaults={setPaletteNodeDefaults} getSymbolInfo={(symbol) => {
return {
fit: true,
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "document",
shape: {
type: "Flow",
shape: "Document",
},
},
{
id: "predefinedprocess",
shape: {
type: "Flow",
shape: "PreDefinedProcess",
},
},
];
return flowShapes;
}
function setPaletteNodeDefaults(node: NodeModel): void {
node.width = 100;
node.height = 100;
node.style.strokeColor = "#3A3A3A";
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={"Multiple"}
palettes={[
{
id: "flow",
expanded: true,
symbols: getFlowShapes(),
title: "Flow Shapes",
},
]}
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
//Returns the default properties of node
getNodeDefaults={setPaletteNodeDefaults}
getSymbolInfo={(symbol: NodeModel): SymbolInfo => {
return {
fit: true,
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);Adding symbol description for symbols in the palette
The diagram provides support to add symbol description below each symbol of a palette. This descriptive representation of each symbol will enhance the details of the symbol visually. The height and width of the symbol description can also be set individually.
- The property
getSymbolInfo, can be used to add the symbol description at runtime.
The following code is an example to set a symbol description for symbols in the palette.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
symbolInfo: { description: { text: "Process" } },
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
symbolInfo: { description: { text: "Document" } },
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]} symbolHeight={80} symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}} getSymbolInfo={(symbol) => {
//Defines the symbol description
return { width: 75, height: 40, description: { text: symbol.id } };
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
symbolInfo: { description: { text: "Process" } },
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
symbolInfo: { description: { text: "Document" } },
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]}
symbolHeight={80}
symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
getSymbolInfo={(symbol: NodeModel): SymbolInfo => {
//Defines the symbol description
return { width: 75, height: 40, description: { text: symbol.id } };
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);Appearance of symbol description
The appearance of a symbol description in the palette can be customized by changing its color, fontSize, fontFamily, bold, italic, textDecoration, and margin.
The following code is an example to change the color of a symbol description for symbols in the palette.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
tooltip:{
content: 'Customized Tooltip',
},
//Enable customized tooltip content to display on the symbol
constraints: NodeConstraints.Default | NodeConstraints.Tooltip
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]} symbolHeight={80} symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}} getSymbolInfo={(symbol) => {
//Defines the symbol description
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
color: "red",
bold: true,
fontSize: 15,
fontFamily: "Arial",
italic: true,
textDecoration: "Underline",
margin: { top: 30, left: 0, right: 0, bottom: 30 },
},
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
NodeConstraints,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
tooltip:{
content: 'Customized Tooltip',
},
//Enable customized tooltip content to display on the symbol
constraints: NodeConstraints.Default | NodeConstraints.Tooltip
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]}
symbolHeight={80}
symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
getSymbolInfo={(symbol: NodeModel): SymbolInfo => {
//Defines the symbol description
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
color: "red",
bold: true,
fontSize: 15,
fontFamily: "Arial",
italic: true,
textDecoration: "Underline",
margin: { top: 30, left: 0, right: 0, bottom: 30 },
},
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);Tooltip for symbols in symbol palette
The Symbol palette supports displaying tooltips when mouse hovers over the symbols. You can customize the tooltip for each symbol in the symbol palette.
Default tooltip for symbols
When hovering over symbols in the symbol palette, the default tooltip displays the symbol’s ID.
Refer to the image below for an illustration of the tooltip behavior in the symbol palette.
Custom tooltip for symbols
To customize the tooltips for symbols in the symbol palette, assign a custom tooltip to the ‘Tooltip’ content property of each symbol. Once you define the custom tooltip, enable the Tooltip constraints for each symbol, ensuring that the tooltips are displayed when users hover over them.
Here, the code provided below demonstrates how to define tooltip content to symbols within a symbol palette.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SymbolPaletteComponent, } from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes() {
let basicShapes = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
tooltip:{
content: 'Customized Tooltip',
},
//Enable customized tooltip content to display on the symbol
constraints: NodeConstraints.Default | NodeConstraints.Tooltip
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes() {
let flowShapes = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (<SymbolPaletteComponent id="container" expandMode={'Multiple'} palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]} symbolHeight={80} symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}} getSymbolInfo={(symbol) => {
//Defines the symbol description
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
color: "red",
bold: true,
fontSize: 15,
fontFamily: "Arial",
italic: true,
textDecoration: "Underline",
margin: { top: 30, left: 0, right: 0, bottom: 30 },
},
};
}}/>);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import {
Diagram,
NodeModel,
SymbolPalette,
SymbolInfo,
NodeConstraints,
SymbolPaletteComponent,
} from "@syncfusion/ej2-react-diagrams";
//Initialize the basicshapes for the symbol palette
export function getBasicShapes(): NodeModel[] {
let basicShapes: NodeModel[] = [
{
id: "Rectangle",
shape: {
type: "Basic",
shape: "Rectangle",
symbolInfo: { description: { text: "Rectangle" } },
},
},
{
id: "Ellipse",
shape: {
type: "Basic",
shape: "Ellipse",
symbolInfo: { description: { text: "Ellipse" } },
},
tooltip:{
content: 'Customized Tooltip',
},
//Enable customized tooltip content to display on the symbol
constraints: NodeConstraints.Default | NodeConstraints.Tooltip
},
{
id: "Hexagon",
shape: {
type: "Basic",
shape: "Hexagon",
symbolInfo: { description: { text: "Hexagon" } },
},
},
];
return basicShapes;
}
//Initialize the flowshapes for the symbol palette
export function getFlowShapes(): NodeModel[] {
let flowShapes: NodeModel[] = [
{
id: "Process",
shape: {
type: "Flow",
shape: "Process",
},
},
{
id: "Document",
shape: {
type: "Flow",
shape: "Document",
},
},
];
return flowShapes;
}
//Initializes the symbol palette
function App() {
return (
<SymbolPaletteComponent
id="container"
expandMode={'Multiple'}
palettes={[
{
id: 'basic',
expanded: true,
symbols: getBasicShapes(),
title: 'Basic Shapes',
iconCss: 'e-ddb-icons e-basic',
},
{
id: 'flow',
expanded: true,
symbols: getFlowShapes(),
title: 'Flow Shapes',
iconCss: 'e-ddb-icons e-flow',
},
]}
symbolHeight={80}
symbolWidth={80}
//Specifies the preview size and position to symbol palette items.
symbolPreview={{
height: 100,
width: 100,
offset: {
x: 0.5,
y: 0.5,
},
}}
//Sets the margin of the dragging helper relative to the mouse cursor
symbolMargin={{
left: 12,
right: 12,
top: 12,
bottom: 12,
}}
getSymbolInfo={(symbol: NodeModel): SymbolInfo => {
//Defines the symbol description
return {
width: 75,
height: 40,
description: {
text: symbol.shape["shape"],
color: "red",
bold: true,
fontSize: 15,
fontFamily: "Arial",
italic: true,
textDecoration: "Underline",
margin: { top: 30, left: 0, right: 0, bottom: 30 },
},
};
}}
/>
);
}
const root = ReactDOM.createRoot(document.getElementById('diagram'));
root.render(<App />);How to provide different tooltip for Symbol palette and diagram elements.
Differentiate the tooltips between symbols in the symbol palette and dropped nodes by utilizing the dragEnter event. When a custom tooltip is defined for a symbol, it will be displayed for both the symbol and the dropped node in the diagram canvas. However, to provide distinct tooltips for symbols in the palette and dropped nodes, capture the dragEnter event and assign specific tooltips dynamically.
When a symbol is dragged from the symbol palette and enters the diagram canvas, the [DragEnter] IDragEnterEventArgs event is triggered. Within this event, you can define a new tooltip for the dropped node. By assigning custom tooltip content to the Tooltip property of the node, you can provide a distinct tooltip that is specific to the dropped node.
The following image illustrates the differentiation of tooltips displayed in the Symbol Palette and the Diagram.
The following code snippet will demonstrate how to define two different tooltip for symbol in the symbol palette and dropped node in the diagram canvas.
//Initialize the Diagram
let diagram: Diagram = new Diagram({
width: '100%', height: '500px',
connectors: connectors, nodes: nodes,
//event to change tooltip content while dragging symbols into Diagram
dragEnter: dragEnter,
});
diagram.appendTo('#diagram');
function dragEnter(args:IDragEnterEventArgs)
{
//enable tooltip connstraints for the dragged symbol
args.dragItem.constraints = NodeConstraints.Default | NodeConstraints.Tooltip;
//change the tooltip content of the dragged symbol
args.dragItem.tooltip.content='This is Diagram Tooltip';
}Palette interaction
Palette interaction notifies the element enter, leave, and dragging of the symbols into the diagram.
DragEnter
[DragEnter] IDragEnterEventArgs notifies, when the element enter into the diagram from symbol palette.
DragLeave
[DragLeave] IDragLeaveEventArgs notifies, when the element leaves from the diagram.
DragOver
[DragOver] IDragOverEventArgs notifies, when an element drag over another diagram element.
Note: The diagram provides support to cancel the drag and drop operation from the symbol palette to the diagram when the ESC key is pressed.