1/* 2 * Copyright (C) 2006 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 17package android.text.style; 18 19import android.graphics.Paint; 20import android.text.TextPaint; 21 22/** 23 * The classes that affect the height of the line should implement this interface. 24 */ 25public interface LineHeightSpan extends ParagraphStyle, WrapTogetherSpan { 26 /** 27 * Classes that implement this should define how the height is being calculated. 28 * 29 * @param text the text 30 * @param start the start of the line 31 * @param end the end of the line 32 * @param spanstartv the start of the span 33 * @param lineHeight the line height 34 * @param fm font metrics of the paint, in integers 35 */ 36 public void chooseHeight(CharSequence text, int start, int end, 37 int spanstartv, int lineHeight, 38 Paint.FontMetricsInt fm); 39 40 /** 41 * The classes that affect the height of the line with respect to density, should implement this 42 * interface. 43 */ 44 public interface WithDensity extends LineHeightSpan { 45 46 /** 47 * Classes that implement this should define how the height is being calculated. 48 * 49 * @param text the text 50 * @param start the start of the line 51 * @param end the end of the line 52 * @param spanstartv the start of the span 53 * @param lineHeight the line height 54 * @param paint the paint 55 */ 56 public void chooseHeight(CharSequence text, int start, int end, 57 int spanstartv, int lineHeight, 58 Paint.FontMetricsInt fm, TextPaint paint); 59 } 60} 61