Fonts.java

/*
 Swisscom Safe Connect
 Copyright (C) 2014 Swisscom

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.swisscom.safeconnect.utils;

import android.content.Context;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.text.TextPaint;
import android.text.style.RelativeSizeSpan;
import android.text.style.TypefaceSpan;

public class Fonts {
	public static Typeface FONT_BOLD;
	public static Typeface FONT_NORMAL;
	public static TypefaceSpan FONT_BOLD_SPAN;
	public static TypefaceSpan FONT_NORMAL_SPAN;
	public static RelativeSizeSpan SIZE_TAB_TITLE;

	public static void init(Context context) {
		if (FONT_BOLD != null) return;
		Context appCtx = context.getApplicationContext();
		FONT_BOLD = Typeface.createFromAsset(appCtx.getAssets(), "Ftb.ttf");
		FONT_NORMAL = Typeface.createFromAsset(appCtx.getAssets(), "Ftc.ttf");
		FONT_BOLD_SPAN = new CustomTypefaceSpan("", FONT_BOLD);
		FONT_NORMAL_SPAN = new CustomTypefaceSpan("", FONT_NORMAL);
		SIZE_TAB_TITLE = new RelativeSizeSpan(1.2f);
	}

	public static boolean isInitialized() {
		return FONT_BOLD != null;
	}

	public static class CustomTypefaceSpan extends TypefaceSpan {
		private final Typeface newType;

		public CustomTypefaceSpan(String family, Typeface type) {
			super(family);
			newType = type;
		}

		@Override
		public void updateDrawState(TextPaint ds) {
			applyCustomTypeFace(ds, newType);
		}

		@Override
		public void updateMeasureState(TextPaint paint) {
			applyCustomTypeFace(paint, newType);
		}

		private void applyCustomTypeFace(Paint paint, Typeface tf) {
            int oldStyle;
            Typeface old = paint.getTypeface();
            if (old == null) {
                oldStyle = 0;
            } else {
                oldStyle = old.getStyle();
            }

            int fake = oldStyle & ~tf.getStyle();
            if ((fake & Typeface.BOLD) != 0) {
                paint.setFakeBoldText(true);
            }

            if ((fake & Typeface.ITALIC) != 0) {
                paint.setTextSkewX(-0.25f);
            }

            paint.setTypeface(tf);
        }
	}
}