1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.browser.preferences; 18 19 import android.content.Context; 20 import android.content.res.Resources; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.webkit.WebSettings; 24 import android.webkit.WebView; 25 26 import com.android.browser.BrowserSettings; 27 import com.android.browser.R; 28 29 public class FontSizePreview extends WebViewPreview { 30 31 static final String HTML_FORMAT = "<!DOCTYPE html><html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"><style type=\"text/css\">p { margin: 2px auto;}</style><body><p style=\"font-size: 4pt\">%s</p><p style=\"font-size: 8pt\">%s</p><p style=\"font-size: 10pt\">%s</p><p style=\"font-size: 14pt\">%s</p><p style=\"font-size: 18pt\">%s</p></body></html>"; 32 33 String mHtml; 34 35 public FontSizePreview( 36 Context context, AttributeSet attrs, int defStyle) { 37 super(context, attrs, defStyle); 38 } 39 40 public FontSizePreview(Context context, AttributeSet attrs) { 41 super(context, attrs); 42 } 43 44 public FontSizePreview(Context context) { 45 super(context); 46 } 47 48 @Override 49 protected void init(Context context) { 50 super.init(context); 51 Resources res = context.getResources(); 52 Object[] visualNames = res.getStringArray(R.array.pref_text_size_choices); 53 mHtml = String.format(HTML_FORMAT, visualNames); 54 } 55 56 @Override 57 protected void updatePreview() { 58 if (mWebView == null) return; 59 60 WebSettings ws = mWebView.getSettings(); 61 BrowserSettings bs = BrowserSettings.getInstance(); 62 ws.setMinimumFontSize(bs.getMinimumFontSize()); 63 ws.setTextZoom(bs.getTextZoom()); 64 mWebView.loadDataWithBaseURL(null, mHtml, "text/html", "utf-8", null); 65 } 66 67 @Override 68 protected void setupWebView(WebView view) { 69 super.setupWebView(view); 70 view.setLayerType(View.LAYER_TYPE_SOFTWARE, null); 71 } 72 73 } 74
