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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| import { | ||
| clear as svgClear, | ||
| create as svgCreate | ||
| } from 'tiny-svg'; | ||
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| import { getVisual } from '../../util/GraphicsUtil'; | ||
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| import { isConnection } from '../../util/ModelUtil'; | ||
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| import { translate } from '../../util/SvgTransformUtil'; | ||
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| /** | ||
| * @typedef {import('../../model/Types').Element} Element | ||
| * @typedef {import('../../model/Types').Shape} Shape | ||
| * @typedef {import('../../util/Types').Point} Point | ||
| * @typedef {import('../../util/Types').Rect} Rect | ||
| * | ||
| * @typedef { { element: Element, delta: Point } } MovedOption | ||
| * @typedef { { shape: Shape, bounds: Rect } } ResizedOption | ||
| * | ||
| * @typedef { { | ||
| * created?: Element[], | ||
| * removed?: Element[], | ||
| * moved?: MovedOption[], | ||
| * resized?: ResizedOption[] | ||
| * } } CreateOptions | ||
| */ | ||
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| const LAYER_NAME = 'complex-preview'; | ||
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| /** | ||
| * Complex preview for shapes and connections. | ||
| */ | ||
| export default class ComplexPreview { | ||
| constructor(canvas, graphicsFactory, previewSupport) { | ||
| this._canvas = canvas; | ||
| this._graphicsFactory = graphicsFactory; | ||
| this._previewSupport = previewSupport; | ||
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| this._markers = []; | ||
| } | ||
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| /** | ||
| * Create complex preview. | ||
| * | ||
| * @param {CreateOptions} options | ||
| */ | ||
| create(options) { | ||
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| // there can only be one complex preview at a time | ||
| this.cleanUp(); | ||
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| const { | ||
| created = [], | ||
| moved = [], | ||
| removed = [], | ||
| resized = [] | ||
| } = options; | ||
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| const layer = this._canvas.getLayer(LAYER_NAME); | ||
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| // shapes and connections to be created | ||
| created.filter(element => !isHidden(element)).forEach(element => { | ||
| let gfx; | ||
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| if (isConnection(element)) { | ||
| gfx = this._graphicsFactory._createContainer('connection', svgCreate('g')); | ||
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| this._graphicsFactory.drawConnection(getVisual(gfx), element); | ||
| } else { | ||
| gfx = this._graphicsFactory._createContainer('shape', svgCreate('g')); | ||
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| this._graphicsFactory.drawShape(getVisual(gfx), element); | ||
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| translate(gfx, element.x, element.y); | ||
| } | ||
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| this._previewSupport.addDragger(element, layer, gfx); | ||
| }); | ||
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| // elements to be moved | ||
| moved.forEach(({ element, delta }) => { | ||
| this._previewSupport.addDragger(element, layer, undefined, 'djs-dragging'); | ||
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| this._canvas.addMarker(element, 'djs-element-hidden'); | ||
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| this._markers.push([ element, 'djs-element-hidden' ]); | ||
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| const dragger = this._previewSupport.addDragger(element, layer); | ||
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| if (isConnection(element)) { | ||
| translate(dragger, delta.x, delta.y); | ||
| } else { | ||
| translate(dragger, element.x + delta.x, element.y + delta.y); | ||
| } | ||
| }); | ||
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| // elements to be removed | ||
| removed.forEach(element => { | ||
| this._previewSupport.addDragger(element, layer, undefined, 'djs-dragging'); | ||
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| this._canvas.addMarker(element, 'djs-element-hidden'); | ||
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| this._markers.push([ element, 'djs-element-hidden' ]); | ||
| }); | ||
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| // elements to be resized | ||
| resized.forEach(({ shape, bounds }) => { | ||
| this._canvas.addMarker(shape, 'djs-hidden'); | ||
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| this._markers.push([ shape, 'djs-hidden' ]); | ||
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| this._previewSupport.addDragger(shape, layer, undefined, 'djs-dragging'); | ||
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| const gfx = this._graphicsFactory._createContainer('shape', svgCreate('g')); | ||
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| this._graphicsFactory.drawShape(getVisual(gfx), shape, { | ||
| width: bounds.width, | ||
| height: bounds.height | ||
| }); | ||
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| translate(gfx, bounds.x, bounds.y); | ||
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| this._previewSupport.addDragger(shape, layer, gfx); | ||
| }); | ||
| } | ||
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| cleanUp() { | ||
| svgClear(this._canvas.getLayer(LAYER_NAME)); | ||
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| this._markers.forEach(([ element, marker ]) => this._canvas.removeMarker(element, marker)); | ||
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| this._markers = []; | ||
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| this._previewSupport.cleanUp(); | ||
| } | ||
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| show() { | ||
| this._canvas.showLayer(LAYER_NAME); | ||
| } | ||
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| hide() { | ||
| this._canvas.hideLayer(LAYER_NAME); | ||
| } | ||
| } | ||
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| ComplexPreview.$inject = [ | ||
| 'canvas', | ||
| 'graphicsFactory', | ||
| 'previewSupport' | ||
| ]; | ||
|
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| function isHidden(element) { | ||
| return element.hidden; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| import PreviewSupportModule from '../preview-support'; | ||
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| import ComplexPreview from './ComplexPreview'; | ||
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| /** | ||
| * @type { import('didi').ModuleDeclaration } | ||
| */ | ||
| export default { | ||
| __depends__: [ PreviewSupportModule ], | ||
| __init__: [ 'complexPreview' ], | ||
| complexPreview: [ 'type', ComplexPreview ] | ||
| }; |
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