1 /* 2 * Copyright (C) 2014 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.camera.widget; 18 19 import android.content.Context; 20 import android.content.res.Configuration; 21 import android.view.View; 22 import android.widget.FrameLayout; 23 24 import com.android.camera.exif.Rational; 25 import com.android.camera.settings.ResolutionUtil; 26 import com.android.camera2.R; 27 28 /** 29 * Displays a dialog that allows people to choose aspect ratio. Please 30 * instantiate this class programmatically. 31 */ 32 public class AspectRatioDialogLayout extends FrameLayout { 33 34 private AspectRatioDialogListener mListener; 35 36 private View mAspectRatio4x3Button; 37 private View mAspectRatio16x9Button; 38 private View mConfirmButton; 39 40 private Rational mAspectRatio; 41 private int mLastOrientation; 42 43 /** 44 * Constructs a new AspectRatioDialogLayout object. 45 * 46 * @param context The application context. 47 * @param defaultAspectRatio The default aspect ratio to choose. 48 */ AspectRatioDialogLayout(Context context, Rational defaultAspectRatio)49 public AspectRatioDialogLayout(Context context, Rational defaultAspectRatio) { 50 super(context); 51 mAspectRatio = defaultAspectRatio; 52 mLastOrientation = context.getResources().getConfiguration().orientation; 53 setBackgroundResource(R.color.fullscreen_dialog_background_color); 54 inflate(context, R.layout.aspect_ratio_dialog_content, this); 55 updateSubviewReferences(); 56 } 57 setListener(AspectRatioDialogListener listener)58 public void setListener(AspectRatioDialogListener listener) { 59 mListener = listener; 60 } 61 62 @Override onConfigurationChanged(Configuration config)63 public void onConfigurationChanged(Configuration config) { 64 super.onConfigurationChanged(config); 65 66 if (config.orientation == mLastOrientation) { 67 return; 68 } 69 mLastOrientation = config.orientation; 70 71 removeAllViews(); 72 inflate(getContext(), R.layout.aspect_ratio_dialog_content, this); 73 updateSubviewReferences(); 74 } 75 updateSubviewReferences()76 private void updateSubviewReferences() { 77 mAspectRatio4x3Button = findViewById(R.id.aspect_ratio_4x3_button); 78 mAspectRatio16x9Button = findViewById(R.id.aspect_ratio_16x9_button); 79 mConfirmButton = findViewById(R.id.confirm_button); 80 81 // Set aspect ratio after references to views are established. 82 setAspectRatio(mAspectRatio); 83 84 // Hook onclick events. 85 mAspectRatio4x3Button.setOnClickListener(new OnClickListener() { 86 @Override 87 public void onClick(View v) { 88 setAspectRatio(ResolutionUtil.ASPECT_RATIO_4x3); 89 } 90 }); 91 mAspectRatio16x9Button.setOnClickListener(new OnClickListener() { 92 @Override 93 public void onClick(View v) { 94 setAspectRatio(ResolutionUtil.ASPECT_RATIO_16x9); 95 } 96 }); 97 mConfirmButton.setOnClickListener(new OnClickListener() { 98 @Override 99 public void onClick(View v) { 100 if (mListener != null) { 101 mListener.onConfirm(mAspectRatio); 102 } 103 } 104 }); 105 } 106 setAspectRatio(Rational aspectRatio)107 private void setAspectRatio(Rational aspectRatio) { 108 mAspectRatio = aspectRatio; 109 110 if (mAspectRatio.equals(ResolutionUtil.ASPECT_RATIO_4x3)) { 111 // Select 4x3 view and unselect 16x9 view. 112 mAspectRatio4x3Button.setSelected(true); 113 mAspectRatio16x9Button.setSelected(false); 114 } else if (mAspectRatio.equals(ResolutionUtil.ASPECT_RATIO_16x9)) { 115 // Select 16x9 view and unselect 4x3 view. 116 mAspectRatio16x9Button.setSelected(true); 117 mAspectRatio4x3Button.setSelected(false); 118 } 119 } 120 121 public interface AspectRatioDialogListener { onConfirm(Rational chosenAspectRatio)122 public void onConfirm(Rational chosenAspectRatio); 123 } 124 } 125