Utilities.java 文件源码

public static Rect horizontalScale(Rect original, double factor) {

        double width = original.br().x - original.tl().x;
        double newWidth = width * factor;
        double newLeft = original.tl().x - ((newWidth - width) / 2);
        double height = original.br().y - original.tl().y;

        return new Rect((int) newLeft, (int) original.tl().y, (int) newWidth, (int) height);
    }