矩形支持自定义背景图

src/editor/Property/OverlayBackground.tsx

@@ -0,0 +1,43 @@
+import { CSSProperties } from "react";
+import { Upload } from "antd";
+import { IOverlay } from "@map";
+import { editorAction } from "@store";
+
+export type OverlayBackgroundProps = {
+  overlay: IOverlay;
+};
+
+export const OverlayBackground = (props: OverlayBackgroundProps) => {
+  const { overlay } = props;
+  const { id, backgroundImage } = overlay;
+
+  const beforeUpload = (file: File) => {
+    const reader = new FileReader();
+    reader.onload = () => {
+      editorAction.updateOverlay({
+        id,
+        backgroundImage: reader.result as string,
+      });
+    };
+    reader.readAsDataURL(file);
+    return false;
+  };
+
+  const style: CSSProperties = {};
+  if (backgroundImage) {
+    style.backgroundImage = `url(${backgroundImage})`;
+  }
+
+  return (
+    <div style={style} className="overlay-background">
+      <Upload
+        showUploadList={false}
+        className="overlay-background-upload"
+        accept="image/png, image/jpg"
+        beforeUpload={beforeUpload}
+      >
+        上传
+      </Upload>
+    </div>
+  );
+};

src/editor/Property/index.less

@@ -1,3 +1,22 @@
 .property-area{
   padding: 8px;
 }
+.overlay-background{
+  background-size: cover;
+}
+.overlay-background-upload{
+  display: inline-block;
+  width: 100%;
+  height: 120px;
+  line-height: 120px;
+  text-align: center;
+  vertical-align: middle;
+  background-color: rgba(0, 0, 0, .2);
+  border: 1px dashed #d9d9d9;
+  border-radius: 2px;
+  cursor: pointer;
+  transition: border-color .3s;
+}
+.ant-form-item .ant-upload{
+  color: #fff;
+}

src/editor/Property/index.tsx

@@ -1,11 +1,12 @@
-import { useDispatch, useSelector } from "react-redux";
-import { Form, Input, Select } from "antd";
-import { selectedIdsSelector, mapOptionsSelector, StoreAction } from "@store";
+import { useSelector } from "react-redux";
+import { Form, Select } from "antd";
+import { selectedIdsSelector, mapOptionsSelector, editorAction } from "@store";
 import { OverlayCategory, IOverlay } from "@map";
 
 import { OverlayTypes } from "@types";
 
 import { FineInput } from "./FineInput";
+import { OverlayBackground } from "./OverlayBackground";
 
 import "./index.less";
 
@@ -19,14 +20,12 @@ const { Option } = Select;
 const Property = () => {
   const selectedIds = useSelector(selectedIdsSelector);
   const { overlays } = useSelector(mapOptionsSelector);
-  const dispatch = useDispatch();
   if (!selectedIds?.length) return <></>;
   const [id] = selectedIds;
   const overlay = overlays.find((overlay) => overlay.id === id)!;
 
-  const updateOverlayProps = (props: Partial<IOverlay>) => {
-    dispatch(StoreAction.updateOverlayProps(props));
-  };
+  const updateOverlayProps = (props: Partial<IOverlay>) =>
+    editorAction.updateOverlay(props);
 
   const categorys: CategoryItem[] = [];
   if (overlay.type === OverlayTypes.Polyline) {
@@ -83,6 +82,11 @@ const Property = () => {
             />
           </Form.Item>
         ) : null}
+        {overlay.type === OverlayTypes.Rectangle ? (
+          <Form.Item label="背景">
+            <OverlayBackground overlay={overlay} />
+          </Form.Item>
+        ) : null}
       </Form>
     </div>
   );

src/map/MapEditor.ts

@@ -11,7 +11,7 @@ import {
   CircleEditor,
 } from "./editors";
 
-import { IMapOptions, IMapEditor } from "./type";
+import { IMapOptions, IMapEditor, IOverlay } from "./type";
 
 import { PolygonOptions, PolylineOptions, SelectedOptions } from "./constants";
 
@@ -35,6 +35,7 @@ export class MapEditor extends Emitter implements IMapEditor {
   private _map: AMap.Map | undefined;
   private overlayEditors: BaseOverlayEditor<AMapOverlayEditor>[] = [];
   private overlayMap: Record<string, OverlayTemp> = {};
+  private imageLayerMap: Record<string, AMap.ImageLayer> = {};
   private currentOverlayEditor:
     | BaseOverlayEditor<AMapOverlayEditor>
     | undefined;
@@ -122,14 +123,14 @@ export class MapEditor extends Emitter implements IMapEditor {
     overlays.forEach((overlay) => {
       const { type, id } = overlay;
       const target = overlayEditors[type].build(overlay);
-      this.overlayMap[id] = {
-        type,
-        target,
-      };
+      this._addOverlay(id, { type, target });
       target.setOptions(
         type === OverlayTypes.Polyline ? PolylineOptions : PolygonOptions
       );
       this.map.add(target);
+      if (overlay.backgroundImage) {
+        this.updateOverlayBackground(id, overlay.backgroundImage);
+      }
     });
   }
 
@@ -146,6 +147,28 @@ export class MapEditor extends Emitter implements IMapEditor {
     this.selectedIds = [];
   }
 
+  updateOverlayBackground(id: string, src?: string) {
+    if (this.overlayMap[id] == null) return;
+    const overlay = this.overlayMap[id];
+    // 只支持矩形
+    if (overlay.type !== OverlayTypes.Rectangle) return;
+    const rect = overlay.target as AMap.Rectangle;
+    const rectBounds = rect.getBounds()!;
+
+    if (this.imageLayerMap[id] == null && src) {
+      const { southWest, northEast } = rectBounds;
+      this.imageLayerMap[id] = new AMap.ImageLayer({
+        url: src,
+        // 居然不一样.....
+        bounds: [southWest.lng, southWest.lat, northEast.lng, northEast.lat],
+        zIndex: 0,
+      });
+      this.map.add(this.imageLayerMap[id]);
+    }
+    this.imageLayerMap[id]?.setBounds(rectBounds);
+    src && this.imageLayerMap[id]?.setImageUrl(src);
+  }
+
   createOverlay(type: OverlayTypes) {
     this.currentOverlayEditor = this.getEditorByType(type!);
     this.currentOverlayEditor?.create();
@@ -171,6 +194,10 @@ export class MapEditor extends Emitter implements IMapEditor {
       const { target } = this.overlayMap[id];
       this.map.remove(target);
       delete this.overlayMap[id];
+      if (this.imageLayerMap[id]) {
+        this.map.remove(this.imageLayerMap[id]);
+        delete this.imageLayerMap[id];
+      }
     });
     this.selectedIds = [];
   }
@@ -183,10 +210,20 @@ export class MapEditor extends Emitter implements IMapEditor {
     const isCreatingOverlay = this.editorStatus === "creating";
     let id = getUID();
     if (isCreatingOverlay) {
-      this.overlayMap[id] = { type, target };
+      this._addOverlay(id, { type, target });
     } else {
       id = this.selectedIds[0];
     }
+    this._updateOverlay(id);
+    target.setOptions(
+      type === OverlayTypes.Polyline ? PolylineOptions : PolygonOptions
+    );
+    this.editorStatus = null;
+  }
+
+  _updateOverlay(id: string) {
+    if (this.overlayMap[id] == null) return;
+    const { type, target } = this.overlayMap[id];
     const evt: any = { id, type };
     if (type === OverlayTypes.Circle) {
       const circle = target as AMap.Circle;
@@ -196,11 +233,8 @@ export class MapEditor extends Emitter implements IMapEditor {
     } else {
       evt.path = getOverlayPaths(target, type);
     }
-    target.setOptions(
-      type === OverlayTypes.Polyline ? PolylineOptions : PolygonOptions
-    );
     this.emit(EventTypes.FinishEditOverlay, evt);
-    this.editorStatus = null;
+    this.updateOverlayBackground(id);
   }
 
   editSelectedOverlay() {
@@ -211,4 +245,13 @@ export class MapEditor extends Emitter implements IMapEditor {
     this.currentOverlayEditor?.edit(target);
     this.editorStatus = "editing";
   }
+
+  onOverlayDragEnd(id: string) {
+    this._updateOverlay(id);
+  }
+
+  _addOverlay(id: string, overlay: OverlayTemp) {
+    this.overlayMap[id] = overlay;
+    overlay.target.on("dragend", () => this.onOverlayDragEnd(id));
+  }
 }

src/map/type.ts

@@ -11,6 +11,7 @@ export interface IMapEditor {
   clearOverlays(): void;
   getCenter(): GeoJSON.Position;
   getZoom(): number;
+  updateOverlayBackground(id: string, src?: string): void;
 }
 
 export enum OverlayCategory {

src/store/actions/index.ts

@@ -94,6 +94,13 @@ export class EditorAction {
     }
   }
 
+  updateOverlay(props: Partial<IOverlay>) {
+    this.dispatch(StoreAction.updateOverlayProps(props));
+    if (props.backgroundImage && props.id) {
+      this.mapEditor?.updateOverlayBackground(props.id, props.backgroundImage);
+    }
+  }
+
   saveGeoJSON() {
     const geojson = getGeoJSON(this.mapOptions);
     downloadJSON(geojson, "fine.geojson");

src/store/reducers/map/index.ts

@@ -35,7 +35,10 @@ export function finishEditOverlay(state = initState, payload: any) {
     const { overlays } = draft.map;
     const existed = overlays.find((overlay) => overlay.id === id);
     if (existed) {
-      overlays[overlays.indexOf(existed)] = overlay;
+      overlays[overlays.indexOf(existed)] = {
+        ...existed,
+        ...overlay,
+      };
     } else {
       overlays.push(overlay);
     }