Nachos-ChipDraw.java

@Override
public void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint) {
    // Shift everything mLeftMarginPx to the left to create an empty space on the left (creating the margin)
    x += mLeftMarginPx;
    if (mChipHeight != -1) {
        // If we set a chip height, adjust to vertically center chip in the line
        // Adding (bottom - top) / 2 shifts the chip down so the top of it will be centered vertically
        // Subtracting (mChipHeight / 2) shifts the chip back up so that the center of it will be centered vertically (as desired)
        top += ((bottom - top) / 2) - (mChipHeight / 2);
        bottom = top + mChipHeight;
    }

    // Perform actual drawing
    drawBackground(canvas, x, top, bottom, paint);
    drawText(canvas, x, top, bottom, paint, mTextToDraw);
    if (mIcon != null) {
        drawIcon(canvas, x, top, bottom, paint);
    }
}