1 /* 2 * Copyright (C) 2020 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.deskclock.widget 18 19 import android.content.Context 20 import android.util.AttributeSet 21 import android.widget.TextClock 22 23 /** 24 * Wrapper around TextClock that automatically re-sizes itself to fit within the given bounds. 25 */ 26 class AutoSizingTextClock @JvmOverloads constructor( 27 context: Context, 28 attrs: AttributeSet? = null, 29 defStyleAttr: Int = 0 30 ) : TextClock(context, attrs, defStyleAttr) { 31 private val mTextSizeHelper: TextSizeHelper? = TextSizeHelper(this) 32 33 private var mSuppressLayout = false 34 onMeasurenull35 override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { 36 mTextSizeHelper!!.onMeasure(widthMeasureSpec, heightMeasureSpec) 37 super.onMeasure(widthMeasureSpec, heightMeasureSpec) 38 } 39 onTextChangednull40 override fun onTextChanged( 41 text: CharSequence, 42 start: Int, 43 lengthBefore: Int, 44 lengthAfter: Int 45 ) { 46 super.onTextChanged(text, start, lengthBefore, lengthAfter) 47 if (mTextSizeHelper != null) { 48 if (lengthBefore != lengthAfter) { 49 mSuppressLayout = false 50 } 51 mTextSizeHelper.onTextChanged(lengthBefore, lengthAfter) 52 } else { 53 requestLayout() 54 } 55 } 56 setTextnull57 override fun setText(text: CharSequence, type: BufferType) { 58 mSuppressLayout = true 59 super.setText(text, type) 60 mSuppressLayout = false 61 } 62 requestLayoutnull63 override fun requestLayout() { 64 if (mTextSizeHelper == null || !mTextSizeHelper.shouldIgnoreRequestLayout()) { 65 if (!mSuppressLayout) { 66 super.requestLayout() 67 } 68 } 69 } 70 }