1 /* 2 * Copyright (C) 2012 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.ui; 18 19 import android.animation.Animator; 20 import android.animation.Animator.AnimatorListener; 21 import android.animation.AnimatorListenerAdapter; 22 import android.content.Context; 23 import android.content.res.Configuration; 24 import android.graphics.Canvas; 25 import android.graphics.drawable.Drawable; 26 import android.util.AttributeSet; 27 import android.view.LayoutInflater; 28 import android.view.MotionEvent; 29 import android.view.View; 30 import android.view.View.OnClickListener; 31 import android.view.View.OnTouchListener; 32 import android.view.ViewGroup; 33 import android.widget.LinearLayout; 34 35 import com.android.camera.R; 36 import com.android.gallery3d.common.ApiHelper; 37 38 public class CameraSwitcher extends RotateImageView 39 implements OnClickListener, OnTouchListener { 40 41 private static final String TAG = "CAM_Switcher"; 42 private static final int SWITCHER_POPUP_ANIM_DURATION = 200; 43 44 public interface CameraSwitchListener { 45 public void onCameraSelected(int i); 46 public void onShowSwitcherPopup(); 47 } 48 49 private CameraSwitchListener mListener; 50 private int mCurrentIndex; 51 private int[] mDrawIds; 52 private int mItemSize; 53 private View mPopup; 54 private View mParent; 55 private boolean mShowingPopup; 56 private boolean mNeedsAnimationSetup; 57 private Drawable mIndicator; 58 59 private float mTranslationX = 0; 60 private float mTranslationY = 0; 61 62 private AnimatorListener mHideAnimationListener; 63 private AnimatorListener mShowAnimationListener; 64 65 public CameraSwitcher(Context context) { 66 super(context); 67 init(context); 68 } 69 70 public CameraSwitcher(Context context, AttributeSet attrs) { 71 super(context, attrs); 72 init(context); 73 } 74 75 private void init(Context context) { 76 mItemSize = context.getResources().getDimensionPixelSize(R.dimen.switcher_size); 77 setOnClickListener(this); 78 mIndicator = context.getResources().getDrawable(R.drawable.ic_switcher_menu_indicator); 79 } 80 81 public void setDrawIds(int[] drawids) { 82 mDrawIds = drawids; 83 } 84 85 public void setCurrentIndex(int i) { 86 mCurrentIndex = i; 87 setImageResource(mDrawIds[i]); 88 } 89 90 public void setSwitchListener(CameraSwitchListener l) { 91 mListener = l; 92 } 93 94 @Override 95 public void onClick(View v) { 96 showSwitcher(); 97 mListener.onShowSwitcherPopup(); 98 } 99 100 private void onCameraSelected(int ix) { 101 hidePopup(); 102 if ((ix != mCurrentIndex) && (mListener != null)) { 103 setCurrentIndex(ix); 104 mListener.onCameraSelected(ix); 105 } 106 } 107 108 @Override 109 protected void onDraw(Canvas canvas) { 110 super.onDraw(canvas); 111 mIndicator.setBounds(getDrawable().getBounds()); 112 mIndicator.draw(canvas); 113 } 114 115 private void initPopup() { 116 mParent = LayoutInflater.from(getContext()).inflate(R.layout.switcher_popup, 117 (ViewGroup) getParent()); 118 LinearLayout content = (LinearLayout) mParent.findViewById(R.id.content); 119 mPopup = content; 120 mPopup.setVisibility(View.INVISIBLE); 121 mNeedsAnimationSetup = true; 122 for (int i = mDrawIds.length - 1; i >= 0; i--) { 123 RotateImageView item = new RotateImageView(getContext()); 124 item.setImageResource(mDrawIds[i]); 125 item.setBackgroundResource(R.drawable.bg_pressed); 126 final int index = i; 127 item.setOnClickListener(new OnClickListener() { 128 @Override 129 public void onClick(View v) { 130 onCameraSelected(index); 131 } 132 }); 133 switch (mDrawIds[i]) { 134 case R.drawable.ic_switch_camera: 135 item.setContentDescription(getContext().getResources().getString( 136 R.string.accessibility_switch_to_camera)); 137 break; 138 case R.drawable.ic_switch_video: 139 item.setContentDescription(getContext().getResources().getString( 140 R.string.accessibility_switch_to_video)); 141 break; 142 case R.drawable.ic_switch_pan: 143 item.setContentDescription(getContext().getResources().getString( 144 R.string.accessibility_switch_to_panorama)); 145 break; 146 case R.drawable.ic_switch_photosphere: 147 item.setContentDescription(getContext().getResources().getString( 148 R.string.accessibility_switch_to_new_panorama)); 149 break; 150 default: 151 break; 152 } 153 content.addView(item, new LinearLayout.LayoutParams(mItemSize, mItemSize)); 154 } 155 } 156 157 public boolean showsPopup() { 158 return mShowingPopup; 159 } 160 161 public boolean isInsidePopup(MotionEvent evt) { 162 if (!showsPopup()) return false; 163 return evt.getX() >= mPopup.getLeft() 164 && evt.getX() < mPopup.getRight() 165 && evt.getY() >= mPopup.getTop() 166 && evt.getY() < mPopup.getBottom(); 167 } 168 169 private void hidePopup() { 170 mShowingPopup = false; 171 setVisibility(View.VISIBLE); 172 if (mPopup != null && !animateHidePopup()) { 173 mPopup.setVisibility(View.INVISIBLE); 174 } 175 mParent.setOnTouchListener(null); 176 } 177 178 private void showSwitcher() { 179 mShowingPopup = true; 180 if (mPopup == null) { 181 initPopup(); 182 } 183 mPopup.setVisibility(View.VISIBLE); 184 if (!animateShowPopup()) { 185 setVisibility(View.INVISIBLE); 186 } 187 mParent.setOnTouchListener(this); 188 } 189 190 @Override 191 public boolean onTouch(View v, MotionEvent event) { 192 closePopup(); 193 return true; 194 } 195 196 public void closePopup() { 197 if (showsPopup()) { 198 hidePopup(); 199 } 200 } 201 202 @Override 203 public void setOrientation(int degree, boolean animate) { 204 super.setOrientation(degree, animate); 205 ViewGroup content = (ViewGroup) mPopup; 206 if (content == null) return; 207 for (int i = 0; i < content.getChildCount(); i++) { 208 RotateImageView iv = (RotateImageView) content.getChildAt(i); 209 iv.setOrientation(degree, animate); 210 } 211 } 212 213 private void updateInitialTranslations() { 214 if (getResources().getConfiguration().orientation 215 == Configuration.ORIENTATION_PORTRAIT) { 216 mTranslationX = -getWidth() / 2 ; 217 mTranslationY = getHeight(); 218 } else { 219 mTranslationX = getWidth(); 220 mTranslationY = getHeight() / 2; 221 } 222 } 223 private void popupAnimationSetup() { 224 if (!ApiHelper.HAS_VIEW_PROPERTY_ANIMATOR) { 225 return; 226 } 227 updateInitialTranslations(); 228 mPopup.setScaleX(0.3f); 229 mPopup.setScaleY(0.3f); 230 mPopup.setTranslationX(mTranslationX); 231 mPopup.setTranslationY(mTranslationY); 232 mNeedsAnimationSetup = false; 233 } 234 235 private boolean animateHidePopup() { 236 if (!ApiHelper.HAS_VIEW_PROPERTY_ANIMATOR) { 237 return false; 238 } 239 if (mHideAnimationListener == null) { 240 mHideAnimationListener = new AnimatorListenerAdapter() { 241 @Override 242 public void onAnimationEnd(Animator animation) { 243 // Verify that we weren't canceled 244 if (!showsPopup()) { 245 mPopup.setVisibility(View.INVISIBLE); 246 } 247 } 248 }; 249 } 250 mPopup.animate() 251 .alpha(0f) 252 .scaleX(0.3f).scaleY(0.3f) 253 .translationX(mTranslationX) 254 .translationY(mTranslationY) 255 .setDuration(SWITCHER_POPUP_ANIM_DURATION) 256 .setListener(mHideAnimationListener); 257 animate().alpha(1f).setDuration(SWITCHER_POPUP_ANIM_DURATION) 258 .setListener(null); 259 return true; 260 } 261 262 private boolean animateShowPopup() { 263 if (!ApiHelper.HAS_VIEW_PROPERTY_ANIMATOR) { 264 return false; 265 } 266 if (mNeedsAnimationSetup) { 267 popupAnimationSetup(); 268 } 269 if (mShowAnimationListener == null) { 270 mShowAnimationListener = new AnimatorListenerAdapter() { 271 @Override 272 public void onAnimationEnd(Animator animation) { 273 // Verify that we weren't canceled 274 if (showsPopup()) { 275 setVisibility(View.INVISIBLE); 276 } 277 } 278 }; 279 } 280 mPopup.animate() 281 .alpha(1f) 282 .scaleX(1f).scaleY(1f) 283 .translationX(0) 284 .translationY(0) 285 .setDuration(SWITCHER_POPUP_ANIM_DURATION) 286 .setListener(null); 287 animate().alpha(0f).setDuration(SWITCHER_POPUP_ANIM_DURATION) 288 .setListener(mShowAnimationListener); 289 return true; 290 } 291 } 292
