Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 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.ui; |
| 18 | |
| 19 | import com.android.gallery3d.R; |
| 20 | import com.android.gallery3d.anim.AlphaAnimation; |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 21 | import com.android.gallery3d.app.AlbumDataAdapter; |
| 22 | import com.android.gallery3d.app.GalleryActivity; |
| 23 | import com.android.gallery3d.data.MediaSet; |
| 24 | |
| 25 | import android.content.Context; |
| 26 | import android.view.MotionEvent; |
| 27 | import android.view.View.MeasureSpec; |
| 28 | |
| 29 | public class FilmStripView extends GLView implements SlotView.Listener, |
| 30 | ScrollBarView.Listener, UserInteractionListener { |
| 31 | @SuppressWarnings("unused") |
| 32 | private static final String TAG = "FilmStripView"; |
| 33 | |
| 34 | private static final int HIDE_ANIMATION_DURATION = 300; // 0.3 sec |
| 35 | |
| 36 | public interface Listener { |
| 37 | void onSlotSelected(int slotIndex); |
| 38 | } |
| 39 | |
| 40 | private int mTopMargin, mMidMargin, mBottomMargin; |
| 41 | private int mContentSize, mBarSize, mGripSize; |
| 42 | private AlbumView mAlbumView; |
| 43 | private ScrollBarView mScrollBarView; |
| 44 | private AlbumDataAdapter mAlbumDataAdapter; |
| 45 | private StripDrawer mStripDrawer; |
| 46 | private Listener mListener; |
| 47 | private UserInteractionListener mUIListener; |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 48 | private NinePatchTexture mBackgroundTexture; |
| 49 | |
| 50 | // The layout of FileStripView is |
| 51 | // topMargin |
| 52 | // ----+----+ |
| 53 | // / +----+--\ |
| 54 | // contentSize | | thumbSize |
| 55 | // \ +----+--/ |
| 56 | // ----+----+ |
| 57 | // midMargin |
| 58 | // ----+----+ |
| 59 | // / +----+--\ |
| 60 | // barSize | | gripSize |
| 61 | // \ +----+--/ |
| 62 | // ----+----+ |
| 63 | // bottomMargin |
| 64 | public FilmStripView(GalleryActivity activity, MediaSet mediaSet, |
| 65 | int topMargin, int midMargin, int bottomMargin, int contentSize, |
| 66 | int thumbSize, int barSize, int gripSize, int gripWidth) { |
| 67 | mTopMargin = topMargin; |
| 68 | mMidMargin = midMargin; |
| 69 | mBottomMargin = bottomMargin; |
| 70 | mContentSize = contentSize; |
| 71 | mBarSize = barSize; |
| 72 | mGripSize = gripSize; |
| 73 | |
| 74 | mStripDrawer = new StripDrawer((Context) activity); |
| 75 | mAlbumView = new AlbumView(activity, thumbSize, thumbSize, thumbSize); |
| 76 | mAlbumView.setOverscrollEffect(SlotView.OVERSCROLL_SYSTEM); |
| 77 | mAlbumView.setSelectionDrawer(mStripDrawer); |
| 78 | mAlbumView.setListener(this); |
| 79 | mAlbumView.setUserInteractionListener(this); |
| 80 | mAlbumDataAdapter = new AlbumDataAdapter(activity, mediaSet); |
| 81 | addComponent(mAlbumView); |
| 82 | mScrollBarView = new ScrollBarView(activity.getAndroidContext(), |
| 83 | mGripSize, gripWidth); |
| 84 | mScrollBarView.setListener(this); |
| 85 | addComponent(mScrollBarView); |
| 86 | |
| 87 | mAlbumView.setModel(mAlbumDataAdapter); |
| 88 | mBackgroundTexture = new NinePatchTexture(activity.getAndroidContext(), |
| 89 | R.drawable.navstrip_translucent); |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | public void setListener(Listener listener) { |
| 93 | mListener = listener; |
| 94 | } |
| 95 | |
| 96 | public void setUserInteractionListener(UserInteractionListener listener) { |
| 97 | mUIListener = listener; |
| 98 | } |
| 99 | |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 100 | public void show() { |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 101 | if (getVisibility() == GLView.VISIBLE) return; |
| 102 | startAnimation(null); |
| 103 | setVisibility(GLView.VISIBLE); |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | public void hide() { |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 107 | if (getVisibility() == GLView.INVISIBLE) return; |
| 108 | AlphaAnimation animation = new AlphaAnimation(1, 0); |
| 109 | animation.setDuration(HIDE_ANIMATION_DURATION); |
| 110 | startAnimation(animation); |
| 111 | setVisibility(GLView.INVISIBLE); |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | @Override |
| 115 | protected void onVisibilityChanged(int visibility) { |
| 116 | super.onVisibilityChanged(visibility); |
| 117 | if (visibility == GLView.VISIBLE) { |
| 118 | onUserInteraction(); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | protected void onMeasure(int widthSpec, int heightSpec) { |
| 124 | int height = mTopMargin + mContentSize + mMidMargin + mBarSize + mBottomMargin; |
| 125 | MeasureHelper.getInstance(this) |
| 126 | .setPreferredContentSize(MeasureSpec.getSize(widthSpec), height) |
| 127 | .measure(widthSpec, heightSpec); |
| 128 | } |
| 129 | |
| 130 | @Override |
| 131 | protected void onLayout( |
| 132 | boolean changed, int left, int top, int right, int bottom) { |
| 133 | if (!changed) return; |
| 134 | mAlbumView.layout(0, mTopMargin, right - left, mTopMargin + mContentSize); |
| 135 | int barStart = mTopMargin + mContentSize + mMidMargin; |
| 136 | mScrollBarView.layout(0, barStart, right - left, barStart + mBarSize); |
| 137 | int width = right - left; |
| 138 | int height = bottom - top; |
| 139 | } |
| 140 | |
| 141 | @Override |
| 142 | protected boolean onTouch(MotionEvent event) { |
| 143 | // consume all touch events on the "gray area", so they don't go to |
| 144 | // the photo view below. (otherwise you can scroll the picture through |
| 145 | // it). |
| 146 | return true; |
| 147 | } |
| 148 | |
| 149 | @Override |
| 150 | protected boolean dispatchTouchEvent(MotionEvent event) { |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 151 | switch (event.getAction()) { |
| 152 | case MotionEvent.ACTION_DOWN: |
| 153 | case MotionEvent.ACTION_MOVE: |
| 154 | onUserInteractionBegin(); |
| 155 | break; |
| 156 | case MotionEvent.ACTION_UP: |
| 157 | case MotionEvent.ACTION_CANCEL: |
| 158 | onUserInteractionEnd(); |
| 159 | break; |
| 160 | } |
| 161 | |
| 162 | return super.dispatchTouchEvent(event); |
| 163 | } |
| 164 | |
| 165 | @Override |
| 166 | protected void render(GLCanvas canvas) { |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 167 | mBackgroundTexture.draw(canvas, 0, 0, getWidth(), getHeight()); |
| 168 | super.render(canvas); |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 172 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 173 | public void onSingleTapUp(int slotIndex) { |
| 174 | mAlbumView.setFocusIndex(slotIndex); |
| 175 | mListener.onSlotSelected(slotIndex); |
| 176 | } |
| 177 | |
| 178 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 179 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 180 | public void onLongTap(int slotIndex) { |
| 181 | onSingleTapUp(slotIndex); |
| 182 | } |
| 183 | |
| 184 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 185 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 186 | public void onUserInteractionBegin() { |
| 187 | mUIListener.onUserInteractionBegin(); |
| 188 | } |
| 189 | |
| 190 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 191 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 192 | public void onUserInteractionEnd() { |
| 193 | mUIListener.onUserInteractionEnd(); |
| 194 | } |
| 195 | |
| 196 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 197 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 198 | public void onUserInteraction() { |
| 199 | mUIListener.onUserInteraction(); |
| 200 | } |
| 201 | |
| 202 | // Called by AlbumView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 203 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 204 | public void onScrollPositionChanged(int position, int total) { |
| 205 | mScrollBarView.setContentPosition(position, total); |
| 206 | } |
| 207 | |
| 208 | // Called by ScrollBarView |
Owen Lin | ace280a | 2011-08-30 10:38:59 +0800 | [diff] [blame] | 209 | @Override |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 210 | public void onScrollBarPositionChanged(int position) { |
| 211 | mAlbumView.setScrollPosition(position); |
| 212 | } |
| 213 | |
| 214 | public void setFocusIndex(int slotIndex) { |
| 215 | mAlbumView.setFocusIndex(slotIndex); |
| 216 | mAlbumView.makeSlotVisible(slotIndex); |
| 217 | } |
| 218 | |
| 219 | public void setStartIndex(int slotIndex) { |
| 220 | mAlbumView.setStartIndex(slotIndex); |
| 221 | } |
| 222 | |
| 223 | public void pause() { |
| 224 | mAlbumView.pause(); |
| 225 | mAlbumDataAdapter.pause(); |
| 226 | } |
| 227 | |
| 228 | public void resume() { |
| 229 | mAlbumView.resume(); |
| 230 | mAlbumDataAdapter.resume(); |
| 231 | } |
| 232 | } |