feat(capture-area): add access points

src/proc/CaptureArea.ts

@@ -15,4 +15,44 @@ export class CaptureArea {
         this.top = top;
         this.left = left;
     }
+
+    public getId(): number {
+        return this.id;
+    }
+
+    public setId(id:number) {
+        this.id = id;
+    }
+
+    public getWidth(): number {
+        return this.width;
+    }
+
+    public setWidth(width:number) {
+        this.width = width;
+    }
+
+    public getHeight(): number {
+        return this.height;
+    }
+
+    public setHeight(height:number) {
+        this.height = height;
+    }
+
+    public getTop(): number {
+        return this.top;
+    }
+
+    public setTop(top:number) {
+        this.top = top;
+    }
+
+    public getLeft(): number {
+        return this.left;
+    }
+
+    public setLeft(left:number) {
+        this.left = left;
+    }
 }

src/proc/Vigad.ts

@@ -1,14 +1,17 @@
+import { CaptureArea } from './CaptureArea';
 import { StreamHandler } from './StreamHandler';
 
 export class Vigad {
     private static instance: Vigad;
     private streamHandler: StreamHandler;
+    private captureAreas: CaptureArea[];
 
     /**
      * Create a private constructor to prevent multiple instances
      */
     private constructor() {
         this.streamHandler = StreamHandler.getInstance();
+        this.captureAreas = [];
     }
 
     /**
@@ -27,4 +30,37 @@ export class Vigad {
     public getStreamHandlerInstance(): StreamHandler {
         return this.streamHandler;
     }
+
+    /**
+     * Add a new capture area. Returns the id of the capture area.
+     * @param width
+     * @param height
+     * @param top
+     * @param left
+     * @return index: number
+     */
+    public addCaptureArea(width:number, height:number, top:number, left:number): number {
+        let ca = new CaptureArea(width, height, top, left);
+        this.captureAreas.push(ca);
+        ca.setId(this.captureAreas.length - 1);
+        return ca.getId();
+    }
+
+    /**
+     * Delete a capture area by id
+     * @param id
+     * @return void
+     */
+    public deleteCaptureArea(id: number): void {
+        this.captureAreas.splice(id, 1);
+    }
+
+    /**
+     * Get a capture area by id
+     * @param id
+     * @return CaptureArea
+     */
+    public getCaptureArea(id: number): CaptureArea {
+        return this.captureAreas[id];
+    }
 }