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.gallery3d.photoeditor; 18 19 import android.app.Activity; 20 import android.content.Intent; 21 import android.graphics.Bitmap; 22 import android.net.Uri; 23 import android.os.Bundle; 24 25 import com.android.gallery3d.R; 26 27 /** 28 * Main activity of the photo editor that opens a photo and prepares tools for photo editing. 29 */ 30 public class PhotoEditor extends Activity { 31 32 private static final String SAVE_URI_KEY = "save_uri"; 33 34 private Uri sourceUri; 35 private Uri saveUri; 36 private FilterStack filterStack; 37 private ActionBar actionBar; 38 private EffectsBar effectsBar; 39 private Toolbar toolbar; 40 41 @Override 42 public void onCreate(Bundle savedInstanceState) { 43 super.onCreate(savedInstanceState); 44 setContentView(R.layout.photoeditor_main); 45 46 Intent intent = getIntent(); 47 if (Intent.ACTION_EDIT.equalsIgnoreCase(intent.getAction())) { 48 sourceUri = intent.getData(); 49 } 50 51 toolbar = (Toolbar) findViewById(R.id.toolbar); 52 actionBar = (ActionBar) findViewById(R.id.action_bar); 53 filterStack = new FilterStack((PhotoView) findViewById(R.id.photo_view), 54 new FilterStack.StackListener() { 55 56 @Override 57 public void onStackChanged(boolean canUndo, boolean canRedo) { 58 actionBar.updateButtons(canUndo, canRedo); 59 } 60 }, savedInstanceState); 61 if (savedInstanceState != null) { 62 saveUri = savedInstanceState.getParcelable(SAVE_URI_KEY); 63 actionBar.updateSave(saveUri == null); 64 } 65 66 // Effects-bar is initially disabled until photo is successfully loaded. 67 effectsBar = (EffectsBar) findViewById(R.id.effects_bar); 68 effectsBar.initialize(filterStack); 69 effectsBar.setEnabled(false); 70 71 actionBar.setClickRunnable(R.id.undo_button, createUndoRedoRunnable(true)); 72 actionBar.setClickRunnable(R.id.redo_button, createUndoRedoRunnable(false)); 73 actionBar.setClickRunnable(R.id.save_button, createSaveRunnable()); 74 actionBar.setClickRunnable(R.id.share_button, createShareRunnable()); 75 actionBar.setClickRunnable(R.id.action_bar_back, createBackRunnable()); 76 } 77 78 private void openPhoto() { 79 toolbar.showSpinner(); 80 LoadScreennailTask.Callback callback = new LoadScreennailTask.Callback() { 81 82 @Override 83 public void onComplete(final Bitmap result) { 84 filterStack.setPhotoSource(result, new OnDoneCallback() { 85 86 @Override 87 public void onDone() { 88 toolbar.dismissSpinner(); 89 effectsBar.setEnabled(result != null); 90 } 91 }); 92 } 93 }; 94 new LoadScreennailTask(this, callback).execute(sourceUri); 95 } 96 97 private Runnable createUndoRedoRunnable(final boolean undo) { 98 return new Runnable() { 99 100 @Override 101 public void run() { 102 effectsBar.exit(new Runnable() { 103 104 @Override 105 public void run() { 106 toolbar.showSpinner(); 107 OnDoneCallback callback = new OnDoneCallback() { 108 109 @Override 110 public void onDone() { 111 toolbar.dismissSpinner(); 112 } 113 }; 114 if (undo) { 115 filterStack.undo(callback); 116 } else { 117 filterStack.redo(callback); 118 } 119 } 120 }); 121 } 122 }; 123 } 124 125 private Runnable createSaveRunnable() { 126 return new Runnable() { 127 128 @Override 129 public void run() { 130 effectsBar.exit(new Runnable() { 131 132 @Override 133 public void run() { 134 toolbar.showSpinner(); 135 filterStack.getOutputBitmap(new OnDoneBitmapCallback() { 136 137 @Override 138 public void onDone(Bitmap bitmap) { 139 SaveCopyTask.Callback callback = new SaveCopyTask.Callback() { 140 141 @Override 142 public void onComplete(Uri result) { 143 toolbar.dismissSpinner(); 144 saveUri = result; 145 actionBar.updateSave(saveUri == null); 146 } 147 }; 148 new SaveCopyTask(PhotoEditor.this, sourceUri, callback).execute( 149 bitmap); 150 } 151 }); 152 } 153 }); 154 } 155 }; 156 } 157 158 private Runnable createShareRunnable() { 159 return new Runnable() { 160 161 @Override 162 public void run() { 163 effectsBar.exit(new Runnable() { 164 165 @Override 166 public void run() { 167 if (saveUri != null) { 168 Intent intent = new Intent(Intent.ACTION_SEND); 169 intent.putExtra(Intent.EXTRA_STREAM, saveUri); 170 intent.setType("image/*"); 171 startActivity(intent); 172 } 173 } 174 }); 175 } 176 }; 177 } 178 179 private Runnable createBackRunnable() { 180 return new Runnable() { 181 182 @Override 183 public void run() { 184 // Exit effects or go back to the previous activity on pressing back button. 185 if (!effectsBar.exit(null)) { 186 // Pop-up a dialog if there are unsaved changes. 187 if (actionBar.canSave()) { 188 new YesCancelDialogBuilder(PhotoEditor.this, new Runnable() { 189 190 @Override 191 public void run() { 192 // Discard unsaved photo for the result. 193 finish(); 194 } 195 }, R.string.discard_unsaved_photo).show(); 196 } else { 197 setResult(RESULT_OK, new Intent().setData(saveUri)); 198 finish(); 199 } 200 } 201 } 202 }; 203 } 204 205 @Override 206 protected void onSaveInstanceState(Bundle outState) { 207 super.onSaveInstanceState(outState); 208 filterStack.saveStacks(outState); 209 outState.putParcelable(SAVE_URI_KEY, saveUri); 210 } 211 212 @Override 213 public void onBackPressed() { 214 actionBar.clickBack(); 215 } 216 217 @Override 218 protected void onPause() { 219 super.onPause(); 220 filterStack.onPause(); 221 // Dismiss any running progress dialog as all operations are paused. 222 toolbar.dismissSpinner(); 223 } 224 225 @Override 226 protected void onResume() { 227 super.onResume(); 228 filterStack.onResume(); 229 openPhoto(); 230 } 231 } 232
