Merge "Reduce size of 'GB' and '%' in storage settings." into pi-dev

    <dimen name="storage_summary_padding_end">16dp</dimen>

    <!-- Text size of the big number in the donut. -->

    <dimen name="storage_donut_view_percent_text_size">30sp</dimen>

    <!-- Text size of the percentage sign in the donut. -->

    <dimen name="storage_donut_view_percent_sign_size">20sp</dimen>

    <!-- Text size of the label text in the donut. -->

    <dimen name="storage_donut_view_label_text_size">14sp</dimen>

    <!-- Text size of the label text in the donut if the label text is long. -->

    <string name="storage_files">Files</string>

    <!-- Summary of a single storage volume used space. [CHAR LIMIT=24] -->

    <string name="storage_size_large_alternate"><xliff:g id="number" example="128">^1</xliff:g><small> <xliff:g id="unit" example="KB">^2</xliff:g></small></string>

    <string name="storage_size_large_alternate"><xliff:g id="number" example="128">^1</xliff:g><small> <font size="20"><xliff:g id="unit" example="KB">^2</xliff:g></font></small></string>

    <!-- Summary of a single storage volume total space. [CHAR LIMIT=48]-->

    <string name="storage_volume_total">Used of <xliff:g id="total" example="32GB">%1$s</xliff:g></string>

    <!-- Follows the percent of storage used by a storage volume. Exposed inside of a donut graph. [CHAR LIMIT=7]-->

import android.graphics.PorterDuff;

import android.graphics.PorterDuffColorFilter;

import android.graphics.Typeface;

import android.icu.text.DecimalFormatSymbols;

import android.support.annotation.ColorRes;

import android.text.Layout;

import android.text.Spannable;

import android.text.SpannableString;

import android.text.Spanned;

import android.text.StaticLayout;

import android.text.TextPaint;

import android.text.TextUtils;

import android.text.style.RelativeSizeSpan;

import android.util.AttributeSet;

import android.view.View;

        mBigNumberPaint.setAntiAlias(true);

        mBigNumberPaint.setTextSize(

                resources.getDimension(R.dimen.storage_donut_view_percent_text_size));

        mBigNumberPaint.setTextAlign(Paint.Align.CENTER);

        mBigNumberPaint.setTypeface(Typeface.create(

                context.getString(com.android.internal.R.string.config_headlineFontFamily),

                Typeface.NORMAL));

        final float centerY = getHeight() / 2;

        final float totalHeight = getTextHeight(mTextPaint) + getTextHeight(mBigNumberPaint);

        final float startY = centerY + totalHeight / 2;

        final float fontProportion = getResources().getDimension(

                R.dimen.storage_donut_view_percent_sign_size) /

                getResources().getDimension(R.dimen.storage_donut_view_percent_text_size);

        // Support from Android P

        final String localizedPercentSign = new DecimalFormatSymbols().getPercentString();

        final int startIndex = mPercentString.indexOf(localizedPercentSign);

        final int endIndex = startIndex + localizedPercentSign.length();

        // The first line y-coordinates start at (total height - all TextPaint height) / 2

        canvas.save();

        final Spannable percentStringSpan = new SpannableString(mPercentString);

        percentStringSpan.setSpan(new RelativeSizeSpan(fontProportion),

                startIndex, endIndex, Spanned.SPAN_INCLUSIVE_INCLUSIVE);

        final StaticLayout percentStringLayout = new StaticLayout(percentStringSpan,

                mBigNumberPaint, getWidth(), Layout.Alignment.ALIGN_CENTER, 1, 0, false);

        canvas.translate(0, (getHeight() - totalHeight) / 2);

        percentStringLayout.draw(canvas);

        canvas.restore();

        // The first line is the height of the bottom text + its descender above the bottom line.

        canvas.drawText(mPercentString, centerX,

                startY - getTextHeight(mTextPaint) - mBigNumberPaint.descent(),

                mBigNumberPaint);

        // The second line starts at the bottom + room for the descender.

        canvas.drawText(mFullString, centerX, startY - mTextPaint.descent(), mTextPaint);

    }