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Toolbar UI

Toolbar is a UI components to change elements on the canvas, reorder and align them, apply undo/redo.

Toolbar image

Basic usage:

import Toolbar from 'polotno/toolbar/toolbar';
import Workspace from 'polotno/canvas/workspace';

const App = ({ store }) => {
return (
<div
style={{
display: 'flex',
height: '100%',
margin: 'auto',
flex: 1,
flexDirection: 'column',
position: 'relative',
}}
>
<Toolbar store={store} />
<Workspace store={store} />
</div>
);
};

Also Toolbar component has additional properties to hide some elements:

type ToolbarProps = {
store: StoreType,
downloadButtonEnabled?: Boolean,

hideTextSpacing?: boolean,
hideTextEffects?: boolean,

hideImageFlip?: boolean,
hideImageEffects?: boolean,
hideImageCrop?: boolean,
hideImageFit?: boolean,

hideSvgEffects?: boolean,

hidePosition?: boolean,
hideOpacity?: boolean,
hideDuplicate?: boolean,
hideLock?: boolean,
hideRemove?: boolean,
components?: any,
};

// example
<Toolbar store={store} hideDuplicate />;

How to overwrite available properties for an element?

In some application you may want to change available properties for selected element. Following Custom Element Example you can make your own React component for any available element.

I recommend to use blueprintjs components to make your UI and use <Navbar.Group> to group inputs. Also remember to wrap your component to observer from mobx-react-lite library to add automatic reactivity of your components.

Example:

import React from 'react';
import { observer } from 'mobx-react-lite';
import { NumericInput, Navbar, Alignment } from '@blueprintjs/core';

import ColorPicker from 'polotno/toolbar/color-picker';
import { unstable_registerToolbarComponent } from 'polotno/config';

const TextToolbar = observer(({ store }) => {
const element = store.selectedElements[0];

return (
<Navbar.Group align={Alignment.LEFT}>
<ColorPicker
value={element.fill}
onChange={(fill) =>
element.set({
fill,
})
}
store={store}
/>
<NumericInput
onValueChange={(fontSize) => {
element.set({ fontSize: fontSize });
}}
value={element.fontSize}
style={{ width: '50px', marginLeft: '10px' }}
min={1}
max={40}
/>
</Navbar.Group>
);
});

unstable_registerToolbarComponent('text', TextToolbar);

Text element inputs

If you want to customize the toolbar for an text element, you can use some built-in inputs:

import {
FontFamilyInput,
FontSizeInput,
FontStyleGroup,
FontColorInput,
SpacingInput,
} from 'polotno/toolbar/text-toolbar';

// You need to pass "store" and "elements" props to these inputs
<FontFamilyInput store={store} elements={store.selectedElements} />;

How to overwrite "Download" button

On the right side of the toolbar, Polotno has "Action Controls" section. You can use components prop to overwrite this section.

Recommendation: keep "Action Controls" as small as possible. <Toolbar /> component already has a lot of tools. So it is better give it as much available width as possible. You can put "Action Controls" somewhere else in the UI of your application. For example, take a look into https://studio.polotno.com/. Download button is placed on the top of the app instead of the <Toolbar />.

Open Demo

import { Toolbar } from 'polotno/toolbar/toolbar';
import { Button } from '@blueprintjs/core';
import { DownloadButton } from 'polotno/toolbar/download-button';

// it is important to define component onside of `MyToolbar` render function
const ActionControls = ({ store }) => {
return (
<div>
<DownloadButton store={store} />
<Button
intent="primary"
onClick={() => {
alert('Saving');
}}
>
Save
</Button>
</div>
);
};

const MyToolbar = ({ store }) => {
return (
<Toolbar
store={store}
components={{
ActionControls,
}}
/>
);
};