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[2296] Create a dedicated hook for the export to image action
Also move the code for diagram panel in a dedicated folder Bug: #2296 Signed-off-by: Axel RICHARD <axel.richard@obeo.fr>
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50
...ams/frontend/sirius-components-diagrams-reactflow/src/renderer/panel/useExportToImage.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2023 Obeo and others. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
|
|
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| import { toSvg } from 'html-to-image'; | ||
| import { useCallback } from 'react'; | ||
| import { Rect, Transform, getRectOfNodes, getTransformForBounds, useReactFlow } from 'reactflow'; | ||
| import { UseExportToImage } from './useExportToImage.types'; | ||
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|
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| const downloadImage = (dataUrl: string) => { | ||
| const a: HTMLAnchorElement = document.createElement('a'); | ||
| a.setAttribute('download', 'diagram.svg'); | ||
| a.setAttribute('href', dataUrl); | ||
| a.click(); | ||
| }; | ||
|
|
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| export const useExportToImage = (): UseExportToImage => { | ||
| const reactFlow = useReactFlow(); | ||
|
|
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| const exportToImage = useCallback(() => { | ||
| const nodesBounds: Rect = getRectOfNodes(reactFlow.getNodes()); | ||
| const imageWidth: number = nodesBounds.width; | ||
| const imageHeight: number = nodesBounds.height; | ||
| const transform: Transform = getTransformForBounds(nodesBounds, imageWidth, imageHeight, 0.5, 2, 0.2); | ||
|
|
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| const viewport: HTMLElement | null = document.querySelector<HTMLElement>('.react-flow__viewport'); | ||
| if (viewport) { | ||
| toSvg(viewport, { | ||
| backgroundColor: '#ffffff', | ||
| width: imageWidth, | ||
| height: imageHeight, | ||
| style: { | ||
| width: imageWidth.toString(), | ||
| height: imageHeight.toString(), | ||
| transform: `translate(${transform[0]}px, ${transform[1]}px) scale(${transform[2]})`, | ||
| }, | ||
| }).then(downloadImage); | ||
| } | ||
| }, []); | ||
| return { exportToImage }; | ||
| }; |
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...rontend/sirius-components-diagrams-reactflow/src/renderer/panel/useExportToImage.types.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2023 Obeo and others. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
|
|
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| export interface UseExportToImage { | ||
| exportToImage: () => void; | ||
| } |
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