OverlayView.java 文件源码

public void setupCropBounds() {
    int height = (int) (((float) this.mThisWidth) / this.mTargetAspectRatio);
    int halfDiff;
    if (height > this.mThisHeight) {
        int width = (int) (((float) this.mThisHeight) * this.mTargetAspectRatio);
        halfDiff = (this.mThisWidth - width) / 2;
        this.mCropViewRect.set((float) (getPaddingLeft() + halfDiff), (float) getPaddingTop()
                , (float) ((getPaddingLeft() + width) + halfDiff), (float) (getPaddingTop() +
                        this.mThisHeight));
    } else {
        halfDiff = (this.mThisHeight - height) / 2;
        this.mCropViewRect.set((float) getPaddingLeft(), (float) (getPaddingTop() + halfDiff)
                , (float) (getPaddingLeft() + this.mThisWidth), (float) ((getPaddingTop() +
                        height) + halfDiff));
    }
    this.mGridPoints = null;
    this.mCircularPath.reset();
    this.mCircularPath.addOval(this.mCropViewRect, Direction.CW);
}