| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package com.taobao.weex.dom; |
| |
| import android.graphics.Paint; |
| import android.text.style.LineHeightSpan; |
| |
| import com.taobao.weex.WXEnvironment; |
| import com.taobao.weex.utils.WXLogUtils; |
| |
| public class WXLineHeightSpan implements LineHeightSpan{ |
| |
| private int lineHeight; |
| public WXLineHeightSpan(int lineHeight){ |
| this.lineHeight=lineHeight; |
| } |
| |
| @Override |
| public void chooseHeight(CharSequence text, int start, int end, int spanstartv, int v, Paint.FontMetricsInt fm) { |
| if(WXEnvironment.isApkDebugable()) { |
| WXLogUtils.d("LineHeight", text + " ; start " + start + "; end " + end + "; spanstartv " |
| + spanstartv + "; v " + v + "; fm " + fm); |
| } |
| int halfLeading=(lineHeight-(fm.descent-fm.ascent))/2; |
| fm.top-=halfLeading; |
| fm.bottom+=halfLeading; |
| fm.ascent-=halfLeading; |
| fm.descent+=halfLeading; |
| } |
| } |