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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,151 +1,165 @@ | ||
| /* | ||
| * @Author: 秦少卫 | ||
| * @Date: 2023-06-21 22:09:36 | ||
| * @LastEditors: 秦少卫 | ||
| * @LastEditTime: 2024-04-10 17:33:05 | ||
| * @LastEditors: June | ||
| * @LastEditTime: 2024-11-23 16:42:14 | ||
| * @Description: file content | ||
| */ | ||
|
|
||
| import { v4 as uuid } from 'uuid'; | ||
| import { fabric } from 'fabric'; | ||
| import Arrow from '../objects/Arrow'; | ||
| import ThinTailArrow from '../objects/ThinTailArrow'; | ||
| import Editor from '../Editor'; | ||
| type IEditor = Editor; | ||
| import { v4 as uuid } from 'uuid' | ||
| import { fabric } from 'fabric' | ||
| import Arrow from '../objects/Arrow' | ||
| import ThinTailArrow from '../objects/ThinTailArrow' | ||
| import Editor from '../Editor' | ||
| import { DrawTypes } from '@/enums/editor' | ||
| type IEditor = Editor | ||
|
|
||
| class DrawLinePlugin implements IPluginTempl { | ||
| static pluginName = 'DrawLinePlugin'; | ||
| static apis = ['setLineType', 'setMode']; | ||
| isDrawingLineMode: boolean; | ||
| lineType: string; | ||
| lineToDraw: any; | ||
| pointer: any; | ||
| pointerPoints: any; | ||
| isDrawingLine: boolean; | ||
| constructor(public canvas: fabric.Canvas, public editor: IEditor) { | ||
| this.isDrawingLine = false; | ||
| this.isDrawingLineMode = false; | ||
| this.lineType = ''; | ||
| this.lineToDraw = null; | ||
| this.pointer = null; | ||
| this.pointerPoints = null; | ||
| this.init(); | ||
| static pluginName = 'DrawLinePlugin' | ||
| static apis = ['setLineType', 'setMode'] | ||
| isDrawingLineMode: boolean | ||
| lineType: DrawTypes | '' | ||
| lineToDraw: any | ||
| pointer: any | ||
| pointerPoints: any | ||
| isDrawingLine: boolean | ||
| constructor( | ||
| public canvas: fabric.Canvas, | ||
| public editor: IEditor | ||
| ) { | ||
| this.isDrawingLine = false | ||
| this.isDrawingLineMode = false | ||
| this.lineType = '' | ||
| this.lineToDraw = null | ||
| this.pointer = null | ||
| this.pointerPoints = null | ||
| this.init() | ||
| } | ||
|
|
||
| init() { | ||
| const { canvas } = this; | ||
| const { canvas } = this | ||
| canvas.on('mouse:down', (o) => { | ||
| if (!this.isDrawingLineMode) return; | ||
| canvas.discardActiveObject(); | ||
| if (!this.isDrawingLineMode) return | ||
| canvas.discardActiveObject() | ||
| canvas.getObjects().forEach((obj) => { | ||
| obj.selectable = false; | ||
| obj.hasControls = false; | ||
| }); | ||
| canvas.requestRenderAll(); | ||
| this.isDrawingLine = true; | ||
| this.pointer = canvas.getPointer(o.e); | ||
| this.pointerPoints = [this.pointer.x, this.pointer.y, this.pointer.x, this.pointer.y]; | ||
| let NodeHandler; | ||
| obj.selectable = false | ||
| obj.hasControls = false | ||
| }) | ||
| canvas.requestRenderAll() | ||
| this.isDrawingLine = true | ||
| this.pointer = canvas.getPointer(o.e) | ||
| this.pointerPoints = [ | ||
| this.pointer.x, | ||
| this.pointer.y, | ||
| this.pointer.x, | ||
| this.pointer.y | ||
| ] | ||
| let NodeHandler | ||
| let opts: any = { | ||
| strokeWidth: 2, | ||
| stroke: '#000000', | ||
| id: uuid(), | ||
| }; | ||
| id: uuid() | ||
| } | ||
| switch (this.lineType) { | ||
| case 'line': | ||
| NodeHandler = fabric.Line; | ||
| break; | ||
| case 'arrow': | ||
| NodeHandler = Arrow; | ||
| break; | ||
| case 'thinTailArrow': | ||
| NodeHandler = ThinTailArrow; | ||
| case DrawTypes.line: | ||
| NodeHandler = fabric.Line | ||
| break | ||
| case DrawTypes.arrow: | ||
| NodeHandler = Arrow | ||
| break | ||
| case DrawTypes.thinTailArrow: | ||
| NodeHandler = ThinTailArrow | ||
| opts = { | ||
| strokeWidth: 2, | ||
| stroke: '#ff0000', | ||
| fill: '#ff0000', | ||
| id: uuid(), | ||
| }; | ||
| break; | ||
| id: uuid() | ||
| } | ||
| break | ||
| default: | ||
| break; | ||
| break | ||
| } | ||
| if (!NodeHandler) throw new Error('Draw failed: invalid lineType.'); | ||
| if (!NodeHandler) throw new Error('Draw failed: invalid lineType.') | ||
|
|
||
| this.lineToDraw = new NodeHandler(this.pointerPoints, opts); | ||
| this.lineToDraw = new NodeHandler(this.pointerPoints, opts) | ||
|
|
||
| this.lineToDraw.selectable = false; | ||
| this.lineToDraw.evented = false; | ||
| this.lineToDraw.strokeUniform = true; | ||
| canvas.add(this.lineToDraw); | ||
| }); | ||
| this.lineToDraw.selectable = false | ||
| this.lineToDraw.evented = false | ||
| this.lineToDraw.strokeUniform = true | ||
| canvas.add(this.lineToDraw) | ||
| }) | ||
|
|
||
| canvas.on('mouse:move', (o) => { | ||
| if (!this.isDrawingLine || !['line', 'arrow', 'thinTailArrow'].includes(this.lineType)) | ||
| return; | ||
| canvas.discardActiveObject(); | ||
| const activeObject = canvas.getActiveObject(); | ||
| if (activeObject) return; | ||
| this.pointer = canvas.getPointer(o.e); | ||
| if ( | ||
| !this.isDrawingLine || | ||
| ![DrawTypes.line, DrawTypes.arrow, DrawTypes.thinTailArrow].includes( | ||
| this.lineType | ||
| ) | ||
| ) | ||
| return | ||
| canvas.discardActiveObject() | ||
| const activeObject = canvas.getActiveObject() | ||
| if (activeObject) return | ||
| this.pointer = canvas.getPointer(o.e) | ||
|
|
||
| if (o.e.shiftKey) { | ||
| // calc angle | ||
| const startX = this.pointerPoints[0]; | ||
| const startY = this.pointerPoints[1]; | ||
| const x2 = this.pointer.x - startX; | ||
| const y2 = this.pointer.y - startY; | ||
| const r = Math.sqrt(x2 * x2 + y2 * y2); | ||
| let angle = (Math.atan2(y2, x2) / Math.PI) * 180; | ||
| angle = ~~(((angle + 7.5) % 360) / 15) * 15; | ||
| const startX = this.pointerPoints[0] | ||
| const startY = this.pointerPoints[1] | ||
| const x2 = this.pointer.x - startX | ||
| const y2 = this.pointer.y - startY | ||
| const r = Math.sqrt(x2 * x2 + y2 * y2) | ||
| let angle = (Math.atan2(y2, x2) / Math.PI) * 180 | ||
| angle = ~~(((angle + 7.5) % 360) / 15) * 15 | ||
|
|
||
| const cosx = r * Math.cos((angle * Math.PI) / 180); | ||
| const sinx = r * Math.sin((angle * Math.PI) / 180); | ||
| const cosx = r * Math.cos((angle * Math.PI) / 180) | ||
| const sinx = r * Math.sin((angle * Math.PI) / 180) | ||
|
|
||
| this.lineToDraw.set({ | ||
| x2: cosx + startX, | ||
| y2: sinx + startY, | ||
| }); | ||
| y2: sinx + startY | ||
| }) | ||
| } else { | ||
| this.lineToDraw.set({ | ||
| x2: this.pointer.x, | ||
| y2: this.pointer.y, | ||
| }); | ||
| y2: this.pointer.y | ||
| }) | ||
| } | ||
|
|
||
| canvas.renderAll(); | ||
| }); | ||
| canvas.renderAll() | ||
| }) | ||
|
|
||
| canvas.on('mouse:up', () => { | ||
| if (!this.isDrawingLine) return; | ||
| this.lineToDraw.setCoords(); | ||
| this.isDrawingLine = false; | ||
| canvas.discardActiveObject(); | ||
| }); | ||
| if (!this.isDrawingLine) return | ||
| this.lineToDraw.setCoords() | ||
| this.isDrawingLine = false | ||
| canvas.discardActiveObject() | ||
| }) | ||
| } | ||
|
|
||
| setLineType(params: any) { | ||
| this.lineType = params; | ||
| this.lineType = params | ||
| } | ||
|
|
||
| setMode(params: any) { | ||
| this.isDrawingLineMode = params; | ||
| this.isDrawingLineMode = params | ||
| if (!this.isDrawingLineMode) { | ||
| this.endRest(); | ||
| this.endRest() | ||
| } | ||
| } | ||
|
|
||
| endRest() { | ||
| this.canvas.getObjects().forEach((obj) => { | ||
| if (obj.id !== 'workspace') { | ||
| obj.selectable = true; | ||
| obj.hasControls = true; | ||
| obj.selectable = true | ||
| obj.hasControls = true | ||
| } | ||
| }); | ||
| }) | ||
| } | ||
|
|
||
| destroy() { | ||
| console.log('pluginDestroy'); | ||
| console.log('pluginDestroy') | ||
| } | ||
| } | ||
|
|
||
| export default DrawLinePlugin; | ||
| export default DrawLinePlugin |
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