canvas.drawRect(mBorder, mBorder, mWidth - mBorder, mHeight - mBorder, mBarPaint1);
canvas.drawLine(mDotX, mDotY, mDotX, mHeight - mBorder, mLinePaint2);
canvas.drawLine(mDotX, mBorder, mDotX, mDotY, mLinePaint1);
canvas.drawRect(mBorder, mBorder, mWidth - mBorder, mHeight - mBorder, mBarPaint1);
canvas.drawLine(mDotX, mDotY, mDotX, mHeight - mBorder, mLinePaint2);
canvas.drawLine(mDotX, mBorder, mDotX, mDotY, mLinePaint1);