1 /* 2 * Copyright (C) 2010 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.photoeditor; 18 19 import android.view.View; 20 21 /** 22 * Handler that adjusts layouts of toolbar's child views whose positions need being calculated 23 * according to the current screen dimensions. 24 */ 25 class ToolbarLayoutHandler { 26 27 private final View tools; 28 29 /** 30 * Constructor should only be invoked after toolbar has done inflation and added all its child 31 * views; then its child views could be found by findViewById calls. 32 */ ToolbarLayoutHandler(View toolbar)33 public ToolbarLayoutHandler(View toolbar) { 34 this.tools = toolbar; 35 } 36 37 /** 38 * Layouts child tool views' positions that need being updated when toolbar is being layout. 39 */ extraLayout(int left, int top, int right, int bottom)40 public void extraLayout(int left, int top, int right, int bottom) { 41 // Wheels need being centered vertically. 42 int height = bottom - top; 43 44 View scaleWheel = tools.findViewById(R.id.scale_wheel); 45 scaleWheel.offsetTopAndBottom((height - scaleWheel.getHeight()) / 2); 46 47 View colorWheel = tools.findViewById(R.id.color_wheel); 48 colorWheel.offsetTopAndBottom((height - colorWheel.getHeight()) / 2); 49 } 50 } 51