UndoBarView.java revision 6b891c6a3739f8c49d42f9db6fc76cb92c7c5f25
16b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang/* 26b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Copyright (C) 2012 The Android Open Source Project 36b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 46b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Licensed under the Apache License, Version 2.0 (the "License"); 56b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * you may not use this file except in compliance with the License. 66b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * You may obtain a copy of the License at 76b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 86b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * http://www.apache.org/licenses/LICENSE-2.0 96b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 106b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Unless required by applicable law or agreed to in writing, software 116b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * distributed under the License is distributed on an "AS IS" BASIS, 126b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * See the License for the specific language governing permissions and 146b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * limitations under the License. 156b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang */ 166b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 176b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changpackage com.android.gallery3d.ui; 186b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 196b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport android.content.Context; 206b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport android.view.MotionEvent; 216b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 226b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport com.android.gallery3d.R; 236b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport com.android.gallery3d.util.GalleryUtils; 246b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 256b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changpublic class UndoBarView extends GLView { 266b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final String TAG = "UndoBarView"; 276b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 286b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final int WHITE = 0xFFFFFFFF; 296b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final int GRAY = 0xFFAAAAAA; 306b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 316b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final NinePatchTexture mPanel; 326b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final StringTexture mUndoText; 336b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final StringTexture mDeletedText; 346b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final ResourceTexture mUndoIcon; 356b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mBarHeight; 366b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mBarMargin; 376b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mUndoTextMargin; 386b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mIconSize; 396b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mIconMargin; 406b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorTopMargin; 416b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorBottomMargin; 426b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorRightMargin; 436b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorWidth; 446b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mDeletedTextMargin; 456b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mClickRegion; 466b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 476b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private OnClickListener mOnClickListener; 486b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private boolean mDownOnButton; 496b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 506b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // This is the layout of UndoBarView. The unit is dp. 516b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 526b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // +-+----+----------------+-+--+----+-+------+--+-+ 536b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 48 | | | Deleted | | | <- | | UNDO | | | 546b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // +-+----+----------------+-+--+----+-+------+--+-+ 556b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 4 16 1 12 32 8 16 4 566b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang public UndoBarView(Context context) { 576b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mBarHeight = (int) GalleryUtils.dpToPixel(48); 586b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mBarMargin = (int) GalleryUtils.dpToPixel(4); 596b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoTextMargin = (int) GalleryUtils.dpToPixel(16); 606b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mIconMargin = (int) GalleryUtils.dpToPixel(8); 616b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mIconSize = (int) GalleryUtils.dpToPixel(32); 626b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mSeparatorRightMargin = (int) GalleryUtils.dpToPixel(12); 636b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mSeparatorTopMargin = (int) GalleryUtils.dpToPixel(10); 646b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mSeparatorBottomMargin = (int) GalleryUtils.dpToPixel(10); 656b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mSeparatorWidth = (int) GalleryUtils.dpToPixel(1); 666b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDeletedTextMargin = (int) GalleryUtils.dpToPixel(16); 676b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 686b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mPanel = new NinePatchTexture(context, R.drawable.panel_undo_holo); 696b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoText = StringTexture.newInstance(context.getString(R.string.undo), 706b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang GalleryUtils.dpToPixel(12), GRAY, 0, true); 716b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDeletedText = StringTexture.newInstance( 726b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang context.getString(R.string.deleted), 736b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang GalleryUtils.dpToPixel(16), WHITE); 746b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoIcon = new ResourceTexture( 756b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang context, R.drawable.ic_menu_revert_holo_dark); 766b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mClickRegion = mBarMargin + mUndoTextMargin + mUndoText.getWidth() 776b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang + mIconMargin + mIconSize + mSeparatorRightMargin; 786b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 796b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 806b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang public void setOnClickListener(OnClickListener listener) { 816b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mOnClickListener = listener; 826b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 836b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 846b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 856b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected void onMeasure(int widthSpec, int heightSpec) { 866b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang setMeasuredSize(0 /* unused */, mBarHeight); 876b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 886b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 896b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 906b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected void render(GLCanvas canvas) { 916b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang super.render(canvas); 926b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int w = getWidth(); 936b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int h = getHeight(); 946b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mPanel.draw(canvas, mBarMargin, 0, w - mBarMargin * 2, mBarHeight); 956b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 966b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int x = w - mBarMargin; 976b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int y; 986b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 996b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mUndoTextMargin + mUndoText.getWidth(); 1006b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mUndoText.getHeight()) / 2; 1016b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoText.draw(canvas, x, y); 1026b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1036b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mIconMargin + mIconSize; 1046b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mIconSize) / 2; 1056b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoIcon.draw(canvas, x, y, mIconSize, mIconSize); 1066b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1076b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mSeparatorRightMargin + mSeparatorWidth; 1086b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = mSeparatorTopMargin; 1096b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang canvas.fillRect(x, y, mSeparatorWidth, 1106b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mBarHeight - mSeparatorTopMargin - mSeparatorBottomMargin, GRAY); 1116b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1126b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x = mBarMargin + mDeletedTextMargin; 1136b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mDeletedText.getHeight()) / 2; 1146b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDeletedText.draw(canvas, x, y); 1156b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1166b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1176b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 1186b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected boolean onTouch(MotionEvent event) { 1196b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang switch (event.getAction()) { 1206b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_DOWN: 1216b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = inUndoButton(event); 1226b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1236b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_UP: 1246b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang if (mDownOnButton) { 1256b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang if (mOnClickListener != null && inUndoButton(event)) { 1266b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mOnClickListener.onClick(this); 1276b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1286b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = false; 1296b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1306b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1316b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_CANCEL: 1326b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = false; 1336b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1346b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1356b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang return true; 1366b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1376b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1386b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // Check if the event is on the right of the separator 1396b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private boolean inUndoButton(MotionEvent event) { 1406b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang float x = event.getX(); 1416b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang float y = event.getY(); 1426b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int w = getWidth(); 1436b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int h = getHeight(); 1446b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang return (x >= w - mClickRegion && x < w && y >= 0 && y < h); 1456b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1466b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang} 147