1 /* 2 * Copyright (C) 2013 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mail.utils; 19 20 import android.content.res.Resources; 21 import android.webkit.WebSettings; 22 23 import com.android.mail.R; 24 25 public class ConversationViewUtils { 26 public static void setTextZoom(Resources resources, WebSettings settings) { 27 final float fontScale = resources.getConfiguration().fontScale; 28 final int desiredFontSizePx = resources.getInteger( 29 R.integer.conversation_desired_font_size_px); 30 final int unstyledFontSizePx = resources.getInteger( 31 R.integer.conversation_unstyled_font_size_px); 32 33 int textZoom = settings.getTextZoom(); 34 // apply a correction to the default body text style to get regular text to the size we want 35 textZoom = textZoom * desiredFontSizePx / unstyledFontSizePx; 36 // then apply any system font scaling 37 textZoom = (int) (textZoom * fontScale); 38 settings.setTextZoom(textZoom); 39 } 40 } 41
