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.videoeditor; 18 19 import android.app.AlertDialog; 20 import android.app.Dialog; 21 import android.content.Context; 22 import android.content.DialogInterface; 23 import android.media.videoeditor.MediaProperties; 24 import android.util.Pair; 25 import android.view.LayoutInflater; 26 import android.view.View; 27 import android.widget.ArrayAdapter; 28 import android.widget.Spinner; 29 30 /** 31 * The export options dialog 32 */ 33 public class ExportOptionsDialog { 34 // Listener 35 public interface ExportOptionsListener { 36 /** 37 * User initiated the export operation 38 * 39 * @param movieHeight The movie height (from MediaProperties) 40 * @param movieBitrate The movie bitrate (from MediaProperties) 41 */ 42 public void onExportOptions(int movieHeight, int movieBitrate); 43 } 44 45 /** 46 * Create the export options dialog 47 * 48 * @param context The context 49 * @param positiveListener The positive listener 50 * @param negativeListener The negative listener 51 * @param cancelListener The cancel listener 52 * @param aspectRatio The aspect ratio 53 * 54 * @return The dialog 55 */ 56 public static Dialog create(Context context, final ExportOptionsListener positiveListener, 57 DialogInterface.OnClickListener negativeListener, 58 DialogInterface.OnCancelListener cancelListener, final int aspectRatio) { 59 AlertDialog.Builder builder = new AlertDialog.Builder(context); 60 61 // Set the title 62 builder.setIcon(android.R.drawable.ic_dialog_info); 63 builder.setTitle(context.getString(R.string.editor_export_movie)); 64 65 // Set the layout 66 final LayoutInflater vi = (LayoutInflater)context 67 .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 68 final View myView = vi.inflate(R.layout.export_options_dialog_view, null); 69 builder.setView(myView); 70 71 // Prepare the dialog content 72 prepareContent(myView, aspectRatio); 73 74 // Setup the positive listener 75 builder.setPositiveButton(context.getString(R.string.export_dialog_export), 76 new DialogInterface.OnClickListener() { 77 @Override 78 public void onClick(DialogInterface dialog, int which) { 79 final Spinner sizeSpinner = (Spinner)myView.findViewById( 80 R.id.export_option_size); 81 final int movieHeight = indexToMovieHeight( 82 sizeSpinner.getSelectedItemPosition(), aspectRatio); 83 final Spinner qualitySpinner = (Spinner)myView.findViewById( 84 R.id.export_option_quality); 85 final int movieBitrate = indexToMovieBitrate( 86 qualitySpinner.getSelectedItemPosition()); 87 positiveListener.onExportOptions(movieHeight, movieBitrate); 88 } 89 }); 90 91 // Setup the negative listener 92 builder.setNegativeButton(context.getString(android.R.string.cancel), negativeListener); 93 94 builder.setCancelable(true); 95 builder.setOnCancelListener(cancelListener); 96 97 final AlertDialog dialog = builder.create(); 98 99 return dialog; 100 } 101 102 /** 103 * Prepare the dialog content 104 * 105 * @param view The dialog content view 106 * @param aspectRatio The project aspect ratio 107 */ 108 private static void prepareContent(View view, int aspectRatio) { 109 final Context context = view.getContext(); 110 // Setup the movie size spinner 111 final ArrayAdapter<CharSequence> sizeAdapter = new ArrayAdapter<CharSequence>( 112 context, android.R.layout.simple_spinner_item); 113 sizeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 114 final Pair<Integer, Integer>[] supportedSizes = 115 MediaProperties.getSupportedResolutions(aspectRatio); 116 for (int i = 0; i < supportedSizes.length; i++) { 117 sizeAdapter.add(supportedSizes[i].first + "x" + supportedSizes[i].second); 118 } 119 final Spinner sizeSpinner = (Spinner)view.findViewById(R.id.export_option_size); 120 sizeSpinner.setAdapter(sizeAdapter); 121 sizeSpinner.setPromptId(R.string.export_dialog_movie_size); 122 123 // Setup the movie quality spinner 124 final ArrayAdapter<CharSequence> qualityAdapter = new ArrayAdapter<CharSequence>(context, 125 android.R.layout.simple_spinner_item); 126 qualityAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 127 qualityAdapter.add(context.getString(R.string.export_dialog_movie_quality_low)); 128 qualityAdapter.add(context.getString(R.string.export_dialog_movie_quality_medium)); 129 qualityAdapter.add(context.getString(R.string.export_dialog_movie_quality_high)); 130 final Spinner qualitySpinner = (Spinner)view.findViewById(R.id.export_option_quality); 131 qualitySpinner.setAdapter(qualityAdapter); 132 // Set the default quality to "Medium" 133 qualitySpinner.setSelection(1); 134 qualitySpinner.setPromptId(R.string.export_dialog_movie_quality); 135 } 136 137 /** 138 * Convert the spinner selection to a movie height 139 * 140 * @param sizeIndex The index of the selected spinner item 141 * @param aspectRatio The aspect ratio 142 * 143 * @return The movie height 144 */ 145 private static int indexToMovieHeight(int sizeIndex, int aspectRatio) { 146 final Pair<Integer, Integer>[] supportedSizes = 147 MediaProperties.getSupportedResolutions(aspectRatio); 148 return supportedSizes[sizeIndex].second; 149 } 150 151 /** 152 * Convert the spinner selection to a movie quality 153 * 154 * @param qualityIndex The index of the selected spinner item 155 * 156 * @return The movie bitrate 157 */ 158 private static int indexToMovieBitrate(int qualityIndex) { 159 switch (qualityIndex) { 160 case 0: { // Low 161 return MediaProperties.BITRATE_512K; 162 } 163 164 case 1: { // Medium 165 return MediaProperties.BITRATE_2M; 166 } 167 168 case 2: { // High 169 return MediaProperties.BITRATE_8M; 170 } 171 172 default: { 173 return MediaProperties.BITRATE_2M; 174 } 175 } 176 } 177 } 178
