深度画布-平铺设置

This commit is contained in:
lzp
2026-03-16 16:51:12 +08:00
parent 1667d8d3a9
commit dc5d932b11
15 changed files with 539 additions and 59 deletions

View File

@@ -46,6 +46,7 @@ export class CanvasManager {
this.deviceInfo = detectDeviceType();
this.currentZoom = ref(100)
}
onMounted() { }
setCanvasViewSize(options) {
this.canvasViewWidth = options.canvasViewWidth || 1920
this.canvasViewHeight = options.canvasViewHeight || 1080
@@ -106,15 +107,15 @@ export class CanvasManager {
// this.stateManager.toolManager.setTool(OperationType.RECTANGLE)
}
/** 画布添加对象 */
async add(obj: any, isUpdate = true) {
async add(obj: any, isRecord = true) {
this.canvas.add(obj)
const id = obj?.info?.id || ""
if (isUpdate) {
if (id) {
this.layerManager.updateLayers()
this.renderAll()
if (id) await this.layerManager.updateLayerThumbnailsById(id)
this.stateManager.recordState()
await this.layerManager.updateLayerThumbnailsById(id)
}
if (isRecord) this.stateManager.recordState()
}
/** 画布移除对象 */
remove(obj: any, isUpdate = true) {
@@ -149,26 +150,22 @@ export class CanvasManager {
}
// 使用动画管理器的缩放方法
animateZoom(point, targetZoom, options = {}) {
console.log(point, targetZoom, options)
this.animationManager.animateZoom(point, targetZoom, options);
}
zoomIn() {
const currentZoom = this.canvas.getZoom()
const newZoom = Math.min(currentZoom + 0.1, 20) // 增加20%最大20倍
// 使用画布中心作为缩放点
const centerPoint = {
x: this.canvas.width / 2,
y: this.canvas.height / 2
}
this.animateZoom(centerPoint, newZoom)
}
zoomOut() {
const currentZoom = this.canvas.getZoom()
const newZoom = Math.max(currentZoom - 0.1, 0.1) // 减少20%最小0.1倍
// 使用画布中心作为缩放点
const centerPoint = {
x: this.canvas.width / 2,

View File

@@ -15,6 +15,7 @@ export class LayerManager {
this.layers = ref([])
this.activeID = ref("")
}
onMounted() { }
setActiveID(id: string, isActive = true) {
this.activeID.value = id
if (isActive) {
@@ -89,7 +90,7 @@ export class LayerManager {
}
}
/** 创建空图层 */
createEmptyLayer(isUpdate = true) {
createEmptyLayer(isRecord = true) {
const emptyObject = new fabric.Rect({
width: 0,
height: 0,
@@ -100,7 +101,7 @@ export class LayerManager {
}
})
this.setLayerPosition(emptyObject)
this.canvasManager.add(emptyObject, isUpdate)
this.canvasManager.add(emptyObject, isRecord)
return emptyObject
}
/** 创建文本图层 */
@@ -155,7 +156,7 @@ export class LayerManager {
return circleObject
}
/** 创建图片图层 */
async createImageLayer(imgOrUrl: string | HTMLImageElement, options?: any) {
async createImageLayer(imgOrUrl: string | HTMLImageElement, options?: any, isRecord = true) {
const canvasWidth = this.canvasManager.canvasWidth
const canvasHeight = this.canvasManager.canvasHeight
@@ -181,13 +182,11 @@ export class LayerManager {
})
}) as fabric.Object
this.setLayerPosition(imageObject, options)
await this.canvasManager.add(imageObject)
await this.canvasManager.add(imageObject, isRecord)
this.setActiveID(imageObject.info.id)
return imageObject
}
/** 合并图层 */
async imageMergeToLayer(targetLayer: fabric.Object, fabricImage: fabric.Object) {
const info = await exportObjectsToImage([targetLayer, fabricImage], true)

View File

@@ -0,0 +1,196 @@
import { ref } from 'vue'
import { fabric } from 'fabric-with-all'
import { createId } from '../../tools/tools'
import { exportObjectsToImage, exportObjectToThumbnail } from '../tools/exportMethod'
import { OperationType } from '../tools/layerHelper'
export const FillSourceToBase64 = (source) => {
if (source?.toDataURL) {
return source.toDataURL?.();
} else if (source?.src) {
return source.src;
}
return source;
}
/**
* 图片添加gap转换
* @param {HTMLCanvasElement} image - img元素
* @param {Number} gapX - 水平gap
* @param {Number} gapY - 垂直gap
* @returns {HTMLCanvasElement} 转换后的canvas元素
*/
export function imageAddGapToCanvas(image, gapX, gapY) {
// 创建透明 Canvas
const tcanvas = document.createElement('canvas');
tcanvas.width = image.width + gapX;
tcanvas.height = image.height + gapY;
const ctx = tcanvas.getContext('2d', { willReadFrequently: true });
ctx.clearRect(0, 0, tcanvas.width, tcanvas.height);
ctx.drawImage(image, 0, 0);
return tcanvas;
}
/**
* 创建缩放+旋转的变换矩阵
* @param {number} scale - 缩放比例
* @param {number} angle - 旋转角度(度)
* @returns {Array} 变换矩阵 [a, b, c, d, e, f]
*/
export function createPatternTransform(scale, angle) {
const angle_ = angle * Math.PI / 180;
const cos = Math.cos(angle_);
const sin = Math.sin(angle_);
// 先缩放,后旋转
return [
scale * cos, // a
scale * sin, // b
-scale * sin, // c
scale * cos, // d
0, // e (水平位移)
0 // f (垂直位移)
];
}
/**
* 获取变换矩阵的缩放、旋转
* @param {Array} Transform - 变换矩阵、
* @returns {Object} 缩放、旋转角度 {scale, angle}
*/
export function getTransformScaleAngle(Transform) {
const a = Transform[0];
const b = Transform[1];
const c = Transform[2];
const d = Transform[3];
const scale = Math.sqrt(a * a + b * b);
const angle = Math.round(Math.atan2(b, a) * 180 / Math.PI);
return { scale, angle };
}
export class ObjectManager {
stateManager: any
canvasManager: any
layerManager: any
constructor(options) {
this.stateManager = options.stateManager;
this.canvasManager = options.canvasManager;
this.layerManager = options.layerManager
}
onMounted() { }
/** 设置平铺状态 */
setFillRepeat(id: string) {
const object = this.canvasManager.getObjectById(id)
if (!object) return console.warn('设置平铺状态失败对象不存在ID:', id)
if (object.type !== 'image') return console.warn('设置平铺状态失败,对象不是图片类型:', id)
// 创建透明 Canvas
const imgEl = object.getElement();
const tcanvas = document.createElement('canvas');
tcanvas.width = imgEl.width;
tcanvas.height = imgEl.height;
const ctx = tcanvas.getContext('2d');
ctx.clearRect(0, 0, tcanvas.width, tcanvas.height);
ctx.drawImage(imgEl, 0, 0);
const fill = {
source: FillSourceToBase64(imgEl),
gapX: 0,
gapY: 0,
}
const pattern = new fabric.Pattern({
source: tcanvas,
repeat: 'repeat',
patternTransform: createPatternTransform(1, 0),
offsetX: 0, // 水平偏移
offsetY: 0, // 垂直偏移
});
const info = {
...object.info,
fill,
}
const rect = new fabric.Rect({
width: object.width,
height: object.height,
top: object.top,
left: object.left,
angle: object.angle,
scaleX: object.scaleX,
scaleY: object.scaleY,
flipX: object.flipX,
flipY: object.flipY,
originX: "left",
originY: "top",
info,
});
rect.set("fill", pattern)
this.canvasManager.canvas.remove(object)
this.canvasManager.add(rect)
}
/** 获取填充对象 */
getFillRepeatObject(id: string) {
const object = this.canvasManager.getObjectById(id)
if (!object) {
console.warn('getFillRepeatObject 对象不存在ID:', id)
return null
}
if (object.type !== 'rect') {
console.warn('getFillRepeatObject 对象不是矩形类型:', id)
return null
}
if (object.fill?.repeat !== 'repeat') {
console.warn('getFillRepeatObject 对象不是平铺填充类型:', id)
return null
}
return object
}
/**
* 修改平铺参数
* @param id 目标对象ID
* @param options 参数
* @param options.scale 缩放比例
* @param options.angle 旋转角度
* @param options.offsetX 水平偏移
* @param options.offsetY 垂直偏移
*/
async updateFillRepeatTransform(id: string, options: any, isRecord: boolean) {
const object = this.getFillRepeatObject(id)
if (!object) return null
const fill = object.get("fill");
const scale = options.hasOwnProperty('scale') ? options.scale : getTransformScaleAngle(fill.patternTransform).scale
const angle = options.hasOwnProperty('angle') ? options.angle : getTransformScaleAngle(fill.patternTransform).angle
const offsetX = options.hasOwnProperty('offsetX') ? options.offsetX : fill.offsetX
const offsetY = options.hasOwnProperty('offsetY') ? options.offsetY : fill.offsetY
fill.patternTransform = createPatternTransform(scale, angle)
fill.offsetX = offsetX
fill.offsetY = offsetY
object.set("fill", new fabric.Pattern(fill));
this.canvasManager.renderAll()
if (isRecord) this.stateManager.recordState()
}
/** 修改平铺间隙
* @param id 目标对象ID
* @param options 间隙参数
* @param options.gapX 水平间隙
* @param options.gapY 垂直间隙
*/
async updateFillRepeatGap(id: string, options: any, isRecord: boolean) {
const object = this.getFillRepeatObject(id)
if (!object) return null
const gapX = options.hasOwnProperty('gapX') ? options.gapX : object.info.fill.gapX
const gapY = options.hasOwnProperty('gapY') ? options.gapY : object.info.fill.gapY
const fill = object.get("fill");
const image = new Image();
image.crossOrigin = "anonymous";
image.src = object.info.fill.source;
await image.decode();
fill.source = imageAddGapToCanvas(image, gapX, gapY)
object.info.fill.gapX = gapX
object.info.fill.gapY = gapY
object.set("fill", new fabric.Pattern(fill));
this.canvasManager.renderAll()
if (isRecord) this.stateManager.recordState()
}
dispose() { }
}

View File

@@ -3,6 +3,23 @@ import { ElMessageBox } from 'element-plus'
import i18n from '@/lang'
const t = i18n.global.t
class Event {
list: any[]
constructor() {
this.list = []
}
add(name, call) {
this.list.push({ name, call })
}
remove(name, call) {
this.list = this.list.filter(item => item.name != name && item.call != call)
}
emit(name, data) {
this.list.forEach(item => {
if (item.name == name) item.call(data)
})
}
}
export class StateManager {
// 历史记录-撤回/重做
@@ -11,6 +28,8 @@ export class StateManager {
historyIndex: any
running: any
event: Event
// 管理器
canvasManager: any
layerManager: any
@@ -18,6 +37,7 @@ export class StateManager {
toolManager: any
brushManager: any
keyEventManager: any
objectManager: any
// 设置管理器
setManager(options) {
options.eventManager && (this.eventManager = options.eventManager)
@@ -26,16 +46,16 @@ export class StateManager {
options.toolManager && (this.toolManager = options.toolManager)
options.brushManager && (this.brushManager = options.brushManager)
options.keyEventManager && (this.keyEventManager = options.keyEventManager)
options.objectManager && (this.objectManager = options.objectManager)
}
constructor(options) {
this.mxHistory = ref(50)
this.historyList = ref([])
this.historyIndex = ref(0)
this.running = ref(false)
this.event = new Event()
}
onMounted() { }
/** 设置是否开始记录状态 */
setIsRecord(isRecord: boolean) {
@@ -73,6 +93,7 @@ export class StateManager {
this.running.value = true
this.historyIndex.value = index
this.canvasManager.loadJSON(state.canvas, () => {
this.event.emit('canvas:undo', state)
this.running.value = false
})
}
@@ -85,6 +106,7 @@ export class StateManager {
this.running.value = true
this.historyIndex.value = index
this.canvasManager.loadJSON(state.canvas, () => {
this.event.emit('canvas:redo', state)
this.running.value = false
})
}

View File

@@ -26,7 +26,7 @@ export class BrushRegistry {
*/
register(id, brushClass, metadata = {}) {
if (this.brushes.has(id)) {
console.warn(`笔刷 ${id} 已存在请使用其他ID`);
// console.warn(`笔刷 ${id} 已存在请使用其他ID`);
return false;
}

View File

@@ -708,34 +708,34 @@ export class CanvasEventManager {
const updateLayers = (e) => {
if (e.target._objects) return;
this.layerManager.updateLayers();
// this.layerManager.updateLayers();// 先不用数据大了非常卡
};
// 添加对象开始变换时的状态捕获
this.canvas.on("object:moving", (e) => {
// console.log("object:moving", e);
updateLayers(e);
// updateLayers(e);
});
this.canvas.on("object:scaling", (e) => {
// console.log("object:scaling", e);
updateLayers(e);
// updateLayers(e);
});
this.canvas.on("object:rotating", (e) => {
// console.log("object:rotating", e);
updateLayers(e);
// updateLayers(e);
});
this.canvas.on("object:skewing", (e) => {
// console.log("object:skewing", e);
updateLayers(e);
// updateLayers(e);
});
this.canvas.on("object:modified", async (e) => {
updateLayers(e);
// updateLayers(e);
const id = e.target?.info?.id;
if (id) await this.layerManager.updateLayerThumbnailsById(id)
this.stateManager.recordState();
});
this.canvas.on("object:removed", (e) => {
updateLayers(e);
// updateLayers(e);
});
}
setupDoubleClickEvents() {

View File

@@ -4,6 +4,7 @@ export class KeyEventManager {
this.stateManager = options.stateManager;
this.registerEvents()
}
onMounted() { }
/** 处理键盘事件 */
handleKeyDown(event: any) {