am b2c3e440: Always use "H" for formula text alignment

import android.content.Context;

import android.graphics.Paint;

import android.graphics.Rect;

import android.text.TextUtils;

import android.util.AttributeSet;

import android.widget.TextView;

import java.nio.charset.Charset;

import java.nio.charset.CharsetEncoder;

/**

 * Extended {@link TextView} that supports ascent/baseline alignment.

 */

public class AlignedTextView extends TextView {

    private static final String LATIN_CAPITAL_LETTER = "H";

    private static final CharsetEncoder LATIN_CHARSET_ENCODER =

            Charset.forName("ISO-8859-1").newEncoder();

    // temporary rect for use during layout

    private final Rect mTempRect = new Rect();

    @Override

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        CharSequence text = getText();

        if (TextUtils.isEmpty(text) || LATIN_CHARSET_ENCODER.canEncode(text)) {

            // For latin text align to the default capital letter height.

            text = LATIN_CAPITAL_LETTER;

        }

        getPaint().getTextBounds(text.toString(), 0, text.length(), mTempRect);

        final Paint paint = getPaint();

        // Always align text to the default capital letter height.

        paint.getTextBounds(LATIN_CAPITAL_LETTER, 0, 1, mTempRect);

        final Paint textPaint = getPaint();

        mTopPaddingOffset = Math.min(getPaddingTop(),

                (int) Math.floor(mTempRect.top - textPaint.ascent()));

        mBottomPaddingOffset = Math.min(getPaddingBottom(),

                (int) Math.floor(textPaint.descent()));

                (int) Math.ceil(mTempRect.top - paint.ascent()));

        mBottomPaddingOffset = Math.min(getPaddingBottom(), (int) Math.ceil(paint.descent()));

        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    }