Expose minScale and maxScale

Author: alexiri

src/image-viewer.component.tsx

@@ -551,6 +551,8 @@ export default class ImageViewer extends React.Component<Props, State> {
               pinchToZoom={this.props.enableImageZoom && !this.state.isShowMenu}
               enableDoubleClickZoom={this.props.enableImageZoom && !this.state.isShowMenu}
               doubleClickInterval={this.props.doubleClickInterval}
+              minScale={this.props.minScale}
+              maxScale={this.props.maxScale}
             >
               {this!.props!.renderImage!(image.props)}
             </ImageZoom>

src/image-viewer.type.ts

@@ -81,6 +81,13 @@ export class Props {
 
   public doubleClickInterval?: number;
 
+  /**
+   * Min and Max scale for zooming
+   */
+  public minScale?: number;
+
+  public maxScale?: number;
+
   /**
    * 是否预加载图片
    */