The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 | |
Joe Onorato | a590252 | 2009-07-30 13:37:37 -0700 | [diff] [blame] | 17 | package com.android.launcher2; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 18 | |
Adam Cohen | 7c69321 | 2011-05-18 15:26:57 -0700 | [diff] [blame] | 19 | import java.util.ArrayList; |
| 20 | |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 21 | import android.animation.Animator; |
| 22 | import android.animation.AnimatorListenerAdapter; |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 23 | import android.animation.ValueAnimator; |
| 24 | import android.animation.ValueAnimator.AnimatorUpdateListener; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 25 | import android.content.Context; |
| 26 | import android.content.res.Resources; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 27 | import android.graphics.Canvas; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 28 | import android.graphics.Color; |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 29 | import android.graphics.PorterDuff; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 30 | import android.graphics.drawable.Drawable; |
| 31 | import android.util.AttributeSet; |
| 32 | import android.view.LayoutInflater; |
Adam Cohen | 7c69321 | 2011-05-18 15:26:57 -0700 | [diff] [blame] | 33 | import android.view.View; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 34 | import android.view.ViewGroup; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 35 | import android.widget.FrameLayout; |
| 36 | import android.widget.TextView; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 37 | |
Romain Guy | edcce09 | 2010-03-04 13:03:17 -0800 | [diff] [blame] | 38 | import com.android.launcher.R; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 39 | import com.android.launcher2.FolderInfo.FolderListener; |
Romain Guy | edcce09 | 2010-03-04 13:03:17 -0800 | [diff] [blame] | 40 | |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 41 | /** |
| 42 | * An icon that can appear on in the workspace representing an {@link UserFolder}. |
| 43 | */ |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 44 | public class FolderIcon extends FrameLayout implements DropTarget, FolderListener { |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 45 | private Launcher mLauncher; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 46 | Folder mFolder; |
| 47 | FolderInfo mInfo; |
| 48 | |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 49 | // The number of icons to display in the |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 50 | private static final int NUM_ITEMS_IN_PREVIEW = 4; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 51 | private static final int CONSUMPTION_ANIMATION_DURATION = 100; |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 52 | |
| 53 | // The degree to which the inner ring grows when accepting drop |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 54 | private static final float INNER_RING_GROWTH_FACTOR = 0.1f; |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 55 | |
| 56 | // The degree to which the inner ring is scaled in its natural state |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 57 | private static final float INNER_RING_BASELINE_SCALE = 1.0f; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 58 | |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 59 | // The degree to which the outer ring grows when accepting drop |
| 60 | private static final float OUTER_RING_BASELINE_SCALE = 0.7f; |
| 61 | |
| 62 | // The degree to which the outer ring is scaled in its natural state |
| 63 | private static final float OUTER_RING_GROWTH_FACTOR = 0.3f; |
| 64 | |
| 65 | // The amount of vertical spread between items in the stack [0...1] |
| 66 | private static final float PERSPECTIVE_SHIFT_FACTOR = 0.18f; |
| 67 | |
| 68 | // The degree to which the item in the back of the stack is scaled [0...1] |
| 69 | // (0 means it's not scaled at all, 1 means it's scaled to nothing) |
| 70 | private static final float PERSPECTIVE_SCALE_FACTOR = 0.3f; |
| 71 | |
| 72 | // The percentage of the FolderIcons view that will be dedicated to the items preview |
| 73 | private static final float SPACE_PERCENTAGE_FOR_ICONS = 0.8f; |
| 74 | |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 75 | public static Drawable sFolderOuterRingDrawable = null; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 76 | public static Drawable sFolderInnerRingDrawable = null; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 77 | |
| 78 | private int mOriginalWidth = -1; |
| 79 | private int mOriginalHeight = -1; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 80 | |
| 81 | private int mFolderLocX; |
| 82 | private int mFolderLocY; |
| 83 | private float mOuterRingScale; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 84 | private float mInnerRingScale; |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 85 | |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 86 | public FolderIcon(Context context, AttributeSet attrs) { |
| 87 | super(context, attrs); |
| 88 | } |
| 89 | |
| 90 | public FolderIcon(Context context) { |
| 91 | super(context); |
| 92 | } |
| 93 | |
Michael Jurka | 0280c3b | 2010-09-17 15:00:07 -0700 | [diff] [blame] | 94 | public boolean isDropEnabled() { |
Winson Chung | 7a1d165 | 2011-03-18 15:56:01 -0700 | [diff] [blame] | 95 | final ViewGroup cellLayoutChildren = (ViewGroup) getParent(); |
| 96 | final ViewGroup cellLayout = (ViewGroup) cellLayoutChildren.getParent(); |
| 97 | final Workspace workspace = (Workspace) cellLayout.getParent(); |
| 98 | return !workspace.isSmall(); |
Michael Jurka | 0280c3b | 2010-09-17 15:00:07 -0700 | [diff] [blame] | 99 | } |
| 100 | |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 101 | static FolderIcon fromXml(int resId, Launcher launcher, ViewGroup group, |
Adam Cohen | df2cc41 | 2011-04-27 16:56:57 -0700 | [diff] [blame] | 102 | FolderInfo folderInfo, IconCache iconCache) { |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 103 | |
| 104 | FolderIcon icon = (FolderIcon) LayoutInflater.from(launcher).inflate(resId, group, false); |
| 105 | |
| 106 | final Resources resources = launcher.getResources(); |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 107 | Drawable d = iconCache.getFullResIcon(resources, R.drawable.portal_ring_inner_holo); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 108 | icon.setBackgroundDrawable(d); |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 109 | icon.setTag(folderInfo); |
| 110 | icon.setOnClickListener(launcher); |
| 111 | icon.mInfo = folderInfo; |
| 112 | icon.mLauncher = launcher; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 113 | |
| 114 | Folder folder = Folder.fromXml(launcher); |
| 115 | folder.setDragController(launcher.getDragController()); |
| 116 | folder.setLauncher(launcher); |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 117 | folder.setFolderIcon(icon); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 118 | folder.bind(folderInfo); |
| 119 | icon.mFolder = folder; |
| 120 | |
| 121 | folderInfo.addListener(icon); |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 122 | if (sFolderOuterRingDrawable == null) { |
| 123 | sFolderOuterRingDrawable = |
| 124 | launcher.getResources().getDrawable(R.drawable.portal_ring_outer_holo); |
| 125 | } |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 126 | |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 127 | if (sFolderInnerRingDrawable == null) { |
| 128 | sFolderInnerRingDrawable = |
| 129 | launcher.getResources().getDrawable(R.drawable.portal_ring_inner_holo); |
| 130 | } |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 131 | return icon; |
| 132 | } |
| 133 | |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 134 | private boolean willAcceptItem(ItemInfo item) { |
| 135 | final int itemType = item.itemType; |
| 136 | return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || |
| 137 | itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && |
| 138 | !mFolder.isFull() && item != mInfo); |
| 139 | } |
| 140 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 141 | public boolean acceptDrop(DragObject d) { |
| 142 | final ItemInfo item = (ItemInfo) d.dragInfo; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 143 | return willAcceptItem(item); |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 144 | } |
| 145 | |
Adam Cohen | df03538 | 2011-04-11 17:22:04 -0700 | [diff] [blame] | 146 | public void addItem(ShortcutInfo item) { |
| 147 | mInfo.add(item); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 148 | LauncherModel.addOrMoveItemInDatabase(mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); |
Adam Cohen | df03538 | 2011-04-11 17:22:04 -0700 | [diff] [blame] | 149 | } |
| 150 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 151 | public void onDrop(DragObject d) { |
Joe Onorato | 0589f0f | 2010-02-08 13:44:00 -0800 | [diff] [blame] | 152 | ShortcutInfo item; |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 153 | if (d.dragInfo instanceof ApplicationInfo) { |
Joe Onorato | 0589f0f | 2010-02-08 13:44:00 -0800 | [diff] [blame] | 154 | // Came from all apps -- make a copy |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 155 | item = ((ApplicationInfo) d.dragInfo).makeShortcut(); |
Joe Onorato | 0589f0f | 2010-02-08 13:44:00 -0800 | [diff] [blame] | 156 | } else { |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 157 | item = (ShortcutInfo) d.dragInfo; |
Joe Onorato | 0589f0f | 2010-02-08 13:44:00 -0800 | [diff] [blame] | 158 | } |
Michael Jurka | 66d7217 | 2011-04-12 16:29:25 -0700 | [diff] [blame] | 159 | item.cellX = -1; |
| 160 | item.cellY = -1; |
Adam Cohen | df03538 | 2011-04-11 17:22:04 -0700 | [diff] [blame] | 161 | addItem(item); |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 162 | } |
| 163 | |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 164 | void saveState(CellLayout.LayoutParams lp) { |
| 165 | mOriginalWidth = lp.width; |
| 166 | mOriginalHeight = lp.height; |
Adam Cohen | 2801caf | 2011-05-13 20:57:39 -0700 | [diff] [blame] | 167 | } |
| 168 | |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 169 | private void animateToAcceptState() { |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 170 | ValueAnimator va = ValueAnimator.ofFloat(0f, 1f); |
| 171 | va.setDuration(CONSUMPTION_ANIMATION_DURATION); |
| 172 | va.addUpdateListener(new AnimatorUpdateListener() { |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 173 | public void onAnimationUpdate(ValueAnimator animation) { |
| 174 | final float percent = (Float) animation.getAnimatedValue(); |
| 175 | mOuterRingScale = OUTER_RING_BASELINE_SCALE + percent * OUTER_RING_GROWTH_FACTOR; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 176 | mInnerRingScale = INNER_RING_BASELINE_SCALE + percent * INNER_RING_GROWTH_FACTOR; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 177 | mLauncher.getWorkspace().invalidate(); |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 178 | invalidate(); |
| 179 | } |
| 180 | }); |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 181 | va.addListener(new AnimatorListenerAdapter() { |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 182 | @Override |
| 183 | public void onAnimationEnd(Animator animation) { |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 184 | // Instead of setting the background drawable to null, we set the color to |
| 185 | // transparent. Setting the background drawable to null results in onDraw |
| 186 | // not getting called. |
| 187 | setBackgroundColor(Color.TRANSPARENT); |
| 188 | requestLayout(); |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 189 | } |
| 190 | }); |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 191 | va.start(); |
| 192 | } |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 193 | |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 194 | private void animateToNaturalState() { |
| 195 | ValueAnimator va = ValueAnimator.ofFloat(0f, 1f); |
| 196 | va.setDuration(CONSUMPTION_ANIMATION_DURATION); |
| 197 | va.addUpdateListener(new AnimatorUpdateListener() { |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 198 | public void onAnimationUpdate(ValueAnimator animation) { |
| 199 | final float percent = (Float) animation.getAnimatedValue(); |
| 200 | mOuterRingScale = OUTER_RING_BASELINE_SCALE + OUTER_RING_GROWTH_FACTOR |
| 201 | - percent * OUTER_RING_GROWTH_FACTOR; |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 202 | mInnerRingScale = INNER_RING_BASELINE_SCALE + INNER_RING_GROWTH_FACTOR |
| 203 | - percent * INNER_RING_GROWTH_FACTOR; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 204 | mLauncher.getWorkspace().invalidate(); |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 205 | invalidate(); |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 206 | } |
| 207 | }); |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 208 | va.addListener(new AnimatorListenerAdapter() { |
| 209 | @Override |
| 210 | public void onAnimationEnd(Animator animation) { |
| 211 | setBackgroundDrawable(sFolderInnerRingDrawable); |
| 212 | mLauncher.getWorkspace().hideFolderAccept(FolderIcon.this); |
| 213 | } |
| 214 | }); |
| 215 | va.start(); |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | private void determineFolderLocationInWorkspace() { |
| 219 | int tvLocation[] = new int[2]; |
| 220 | int wsLocation[] = new int[2]; |
| 221 | getLocationOnScreen(tvLocation); |
| 222 | mLauncher.getWorkspace().getLocationOnScreen(wsLocation); |
| 223 | mFolderLocX = tvLocation[0] - wsLocation[0] + getMeasuredWidth() / 2; |
| 224 | mFolderLocY = tvLocation[1] - wsLocation[1] + getMeasuredHeight() / 2; |
| 225 | } |
| 226 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 227 | public void onDragEnter(DragObject d) { |
| 228 | if (!willAcceptItem((ItemInfo) d.dragInfo)) return; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 229 | determineFolderLocationInWorkspace(); |
| 230 | mLauncher.getWorkspace().showFolderAccept(this); |
| 231 | animateToAcceptState(); |
| 232 | } |
| 233 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 234 | public void onDragOver(DragObject d) { |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 235 | } |
| 236 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 237 | public void onDragExit(DragObject d) { |
| 238 | if (!willAcceptItem((ItemInfo) d.dragInfo)) return; |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 239 | animateToNaturalState(); |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 240 | } |
Patrick Dubroy | 440c360 | 2010-07-13 17:50:32 -0700 | [diff] [blame] | 241 | |
Adam Cohen | cb3382b | 2011-05-24 14:07:08 -0700 | [diff] [blame] | 242 | public DropTarget getDropTargetDelegate(DragObject d) { |
Patrick Dubroy | 440c360 | 2010-07-13 17:50:32 -0700 | [diff] [blame] | 243 | return null; |
| 244 | } |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 245 | |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 246 | public void getFolderLocation(int[] loc) { |
| 247 | loc[0] = mFolderLocX; |
| 248 | loc[1] = mFolderLocY; |
| 249 | } |
| 250 | |
| 251 | public float getOuterRingScale() { |
| 252 | return mOuterRingScale; |
| 253 | } |
| 254 | |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 255 | public float getInnerRingScale() { |
| 256 | return mInnerRingScale; |
| 257 | } |
| 258 | |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 259 | @Override |
| 260 | protected void onDraw(Canvas canvas) { |
| 261 | if (mFolder == null) return; |
| 262 | if (mFolder.getItemCount() == 0) return; |
| 263 | |
| 264 | canvas.save(); |
| 265 | TextView v = (TextView) mFolder.getItemAt(0); |
| 266 | Drawable d = v.getCompoundDrawables()[1]; |
| 267 | |
Adam Cohen | 073a46f | 2011-05-17 16:28:09 -0700 | [diff] [blame] | 268 | if (mOriginalWidth < 0 || mOriginalHeight < 0) { |
| 269 | mOriginalWidth = getMeasuredWidth(); |
| 270 | mOriginalHeight = getMeasuredHeight(); |
| 271 | } |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 272 | |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 273 | int unscaledHeight = (int) (d.getIntrinsicHeight() * (1 + PERSPECTIVE_SHIFT_FACTOR)); |
| 274 | float baselineIconScale = SPACE_PERCENTAGE_FOR_ICONS / (unscaledHeight / (mOriginalHeight * 1.0f)); |
| 275 | |
| 276 | int baselineHeight = (int) (d.getIntrinsicHeight() * baselineIconScale); |
| 277 | int totalStackHeight = (int) (baselineHeight * (1 + PERSPECTIVE_SHIFT_FACTOR)); |
| 278 | int baselineWidth = (int) (d.getIntrinsicWidth() * baselineIconScale); |
| 279 | float maxPerpectiveShift = baselineHeight * PERSPECTIVE_SHIFT_FACTOR; |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 280 | |
Adam Cohen | 7c69321 | 2011-05-18 15:26:57 -0700 | [diff] [blame] | 281 | ArrayList<View> items = mFolder.getItemsInReadingOrder(); |
| 282 | int firstItemIndex = Math.max(0, items.size() - NUM_ITEMS_IN_PREVIEW); |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 283 | |
| 284 | int xShift = (int) (mOriginalWidth - baselineWidth) / 2; |
| 285 | int yShift = (int) (mOriginalHeight - totalStackHeight) / 2; |
| 286 | canvas.translate(xShift, yShift); |
Adam Cohen | 4dbe6d9 | 2011-05-18 17:14:15 -0700 | [diff] [blame] | 287 | for (int i = firstItemIndex; i < items.size(); i++) { |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 288 | int index = i - firstItemIndex; |
| 289 | index += Math.max(0, NUM_ITEMS_IN_PREVIEW - items.size()); |
| 290 | |
| 291 | float r = (index * 1.0f) / (NUM_ITEMS_IN_PREVIEW - 1); |
| 292 | float scale = (1 - PERSPECTIVE_SCALE_FACTOR * (1 - r)); |
| 293 | r = (float) Math.pow(r, 2); |
| 294 | |
| 295 | float transY = r * maxPerpectiveShift; |
| 296 | float transX = (1 - scale) * baselineWidth / 2.0f; |
| 297 | |
Adam Cohen | 7c69321 | 2011-05-18 15:26:57 -0700 | [diff] [blame] | 298 | v = (TextView) items.get(i); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 299 | d = v.getCompoundDrawables()[1]; |
| 300 | |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 301 | canvas.save(); |
| 302 | canvas.translate(transX, transY); |
| 303 | canvas.scale(baselineIconScale * scale, baselineIconScale * scale); |
Adam Cohen | f4b0891 | 2011-05-17 18:45:47 -0700 | [diff] [blame] | 304 | |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 305 | int overlayAlpha = (int) (80 * (1 - r)); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 306 | if (d != null) { |
| 307 | d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 308 | d.setColorFilter(Color.argb(overlayAlpha, 0, 0, 0), PorterDuff.Mode.SRC_ATOP); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 309 | d.draw(canvas); |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 310 | d.clearColorFilter(); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 311 | } |
Adam Cohen | badf71e | 2011-05-26 19:08:29 -0700 | [diff] [blame^] | 312 | canvas.restore(); |
Adam Cohen | a9cf38f | 2011-05-02 15:36:58 -0700 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | canvas.restore(); |
| 316 | } |
| 317 | |
| 318 | public void onAdd(ShortcutInfo item) { |
| 319 | invalidate(); |
| 320 | requestLayout(); |
| 321 | } |
| 322 | |
| 323 | public void onRemove(ShortcutInfo item) { |
| 324 | invalidate(); |
| 325 | requestLayout(); |
| 326 | } |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 327 | } |