1/*
2 * Copyright (C) 2014 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
17package com.android.testingcamera2;
18
19import android.content.Context;
20import android.hardware.camera2.CameraDevice;
21import android.hardware.camera2.CaptureRequest;
22import android.util.AttributeSet;
23import android.view.LayoutInflater;
24import android.view.Surface;
25import android.view.View;
26import android.widget.ArrayAdapter;
27import android.widget.Button;
28import android.widget.ListView;
29import android.widget.Spinner;
30
31import org.xmlpull.v1.XmlPullParser;
32import org.xmlpull.v1.XmlPullParserException;
33
34import java.io.IOException;
35import java.util.ArrayList;
36import java.util.List;
37import java.util.Locale;
38
39public class RequestControlPane extends ControlPane {
40    // XML attributes
41
42    /** Name of pane tag */
43    private static final String PANE_NAME = "request_pane";
44
45    /** Attribute: ID for pane (integer) */
46    private static final String PANE_ID = "id";
47
48    // End XML attributes
49
50    private enum TemplateType {
51        MANUAL(CameraDevice.TEMPLATE_MANUAL),
52        PREVIEW(CameraDevice.TEMPLATE_PREVIEW),
53        RECORD(CameraDevice.TEMPLATE_RECORD),
54        STILL_CAPTURE(CameraDevice.TEMPLATE_STILL_CAPTURE),
55        VIDEO_SNAPSHOT(CameraDevice.TEMPLATE_VIDEO_SNAPSHOT),
56        ZERO_SHUTTER_LAG(CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG);
57
58        private int mTemplateVal;
59
60        TemplateType(int templateVal) {
61            mTemplateVal = templateVal;
62        }
63
64        int getTemplateValue() {
65            return mTemplateVal;
66        }
67    }
68
69    private static int mRequestPaneIdCounter = 0;
70
71    private final int mPaneId;
72
73    private List<CameraControlPane> mCameraPanes;
74    private final List<TargetControlPane> mTargetPanes = new ArrayList<TargetControlPane>();
75
76    private Spinner mCameraSpinner;
77    private Spinner mTemplateSpinner;
78    private ListView mOutputListView;
79
80    private CheckableListAdapter mOutputAdapter;
81
82    /**
83     * Constructor for tooling only
84     */
85    public RequestControlPane(Context context, AttributeSet attrs) {
86        super(context, attrs, null, null);
87
88        mPaneId = 0;
89        setUpUI(context);
90    }
91
92    public RequestControlPane(TestingCamera21 tc, AttributeSet attrs, StatusListener listener) {
93        super(tc, attrs, listener, tc.getPaneTracker());
94
95        mPaneId = mRequestPaneIdCounter++;
96        setUpUI(tc);
97    }
98
99    public RequestControlPane(TestingCamera21 tc, XmlPullParser configParser,
100            StatusListener listener) throws XmlPullParserException, IOException {
101        super(tc, null, listener, tc.getPaneTracker());
102
103        this.setName(tc.getResources().getString(R.string.request_pane_title));
104
105        configParser.require(XmlPullParser.START_TAG, XmlPullParser.NO_NAMESPACE, PANE_NAME);
106
107        int paneId = getAttributeInt(configParser, PANE_ID, -1);
108        if (paneId == -1) {
109            mPaneId = mRequestPaneIdCounter++;
110        } else {
111            mPaneId = paneId;
112            if (mPaneId >= mRequestPaneIdCounter) {
113                mRequestPaneIdCounter = mPaneId + 1;
114            }
115        }
116
117        configParser.next();
118        configParser.require(XmlPullParser.END_TAG, XmlPullParser.NO_NAMESPACE, PANE_NAME);
119
120        setUpUI(tc);
121    }
122
123    public void notifyPaneEvent(ControlPane sourcePane, PaneTracker.PaneEvent event) {
124        switch (event) {
125            case NEW_CAMERA_SELECTED:
126                if (mCameraPanes.size() > 0
127                        && sourcePane == mCameraPanes.get(mCameraSpinner.getSelectedItemPosition())) {
128                    updateOutputList();
129                }
130                break;
131            case CAMERA_CONFIGURED:
132                if (mCameraPanes.size() > 0
133                        && sourcePane == mCameraPanes.get(mCameraSpinner.getSelectedItemPosition())) {
134                    updateOutputList();
135                }
136                break;
137            default:
138                super.notifyPaneEvent(sourcePane, event);
139        }
140    }
141
142    private void setUpUI(Context context) {
143        String paneName =
144                String.format(Locale.US, "%s %d",
145                        context.getResources().getString(R.string.request_pane_title), mPaneId);
146        this.setName(paneName);
147
148        LayoutInflater inflater =
149                (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
150
151        inflater.inflate(R.layout.request_pane, this);
152
153        Button captureButton = (Button) findViewById(R.id.request_pane_capture_button);
154        captureButton.setOnClickListener(mCaptureButtonListener);
155        Button repeatButton = (Button) findViewById(R.id.request_pane_repeat_button);
156        repeatButton.setOnClickListener(mRepeatButtonListener);
157
158        mCameraSpinner = (Spinner) findViewById(R.id.request_pane_camera_spinner);
159        mTemplateSpinner = (Spinner) findViewById(R.id.request_pane_template_spinner);
160        mOutputListView = (ListView) findViewById(R.id.request_pane_output_listview);
161
162        mOutputAdapter = new CheckableListAdapter(context, R.layout.checkable_list_item,
163                new ArrayList<CheckableListAdapter.CheckableItem>());
164        mOutputListView.setAdapter(mOutputAdapter);
165
166        String[] templateNames = new String[TemplateType.values().length];
167        for (int i = 0; i < templateNames.length; i++) {
168            templateNames[i] = TemplateType.values()[i].toString();
169        }
170        mTemplateSpinner.setAdapter(new ArrayAdapter<String>(getContext(), R.layout.spinner_item,
171                templateNames));
172
173        mPaneTracker.addPaneListener(new CameraPanesListener());
174        mCameraPanes = mPaneTracker.getPanes(CameraControlPane.class);
175        updateCameraPaneList();
176    }
177
178    private class CameraPanesListener extends PaneTracker.PaneSetChangedListener<CameraControlPane> {
179        public CameraPanesListener() {
180            super(CameraControlPane.class);
181        }
182
183        @Override
184        public void onPaneAdded(ControlPane pane) {
185            mCameraPanes.add((CameraControlPane) pane);
186            updateCameraPaneList();
187        }
188
189        @Override
190        public void onPaneRemoved(ControlPane pane) {
191            mCameraPanes.remove((CameraControlPane) pane);
192            updateCameraPaneList();
193        }
194    }
195
196    private OnClickListener mCaptureButtonListener = new OnClickListener() {
197        @Override
198        public void onClick(View v) {
199            if (mCameraPanes.size() == 0) {
200                TLog.e("No camera selected for request");
201                return;
202            }
203            CameraControlPane camera = mCameraPanes.get(mCameraSpinner.getSelectedItemPosition());
204
205            CaptureRequest request = createRequest(camera);
206            if (request != null) {
207                camera.capture(request);
208            }
209        }
210    };
211
212    private OnClickListener mRepeatButtonListener = new OnClickListener() {
213        @Override
214        public void onClick(View v) {
215            if (mCameraPanes.size() == 0) {
216                TLog.e("No camera selected for request");
217                return;
218            }
219            CameraControlPane camera = mCameraPanes.get(mCameraSpinner.getSelectedItemPosition());
220
221            CaptureRequest request = createRequest(camera);
222            if (request != null) {
223                camera.repeat(request);
224            }
225        }
226    };
227
228    private CaptureRequest createRequest(CameraControlPane camera) {
229        if (mTargetPanes.size() == 0) {
230            TLog.e("No target(s) selected for request");
231            return null;
232        }
233
234
235        TemplateType template = TemplateType.valueOf((String) mTemplateSpinner.getSelectedItem());
236        CaptureRequest.Builder builder = camera.getRequestBuilder(template.getTemplateValue());
237        // TODO: Add setting overrides
238
239        List<Integer> targetPostions = mOutputAdapter.getCheckedPositions();
240        for (int i : targetPostions) {
241            TargetControlPane target = mTargetPanes.get(i);
242            Surface targetSurface = target.getTargetSurfaceForCameraPane(camera.getPaneName());
243            if (targetSurface == null) {
244                TLog.e("Target not configured for camera");
245                return null;
246            }
247            builder.addTarget(targetSurface);
248        }
249
250        CaptureRequest request = builder.build();
251        return request;
252    }
253
254    private void updateCameraPaneList() {
255        String currentSelection = (String) mCameraSpinner.getSelectedItem();
256        int newSelectionIndex = 0;
257        String[] cameraSpinnerItems = new String[mCameraPanes.size()];
258        for (int i = 0; i < cameraSpinnerItems.length; i++) {
259            cameraSpinnerItems[i] = mCameraPanes.get(i).getPaneName();
260            if (cameraSpinnerItems[i].equals(currentSelection)) {
261                newSelectionIndex = i;
262            }
263        }
264        mCameraSpinner.setAdapter(new ArrayAdapter<String>(getContext(), R.layout.spinner_item,
265                cameraSpinnerItems));
266        mCameraSpinner.setSelection(newSelectionIndex);
267
268        updateOutputList();
269    }
270
271    private void updateOutputList() {
272        if (mCameraPanes.size() > 0) {
273            CameraControlPane currentCamera =
274                    mCameraPanes.get(mCameraSpinner.getSelectedItemPosition());
275            mTargetPanes.clear();
276            List<TargetControlPane> newPanes = currentCamera.getCurrentConfiguredTargets();
277            if (newPanes != null) {
278                mTargetPanes.addAll(currentCamera.getCurrentConfiguredTargets());
279            }
280
281            String[] outputSpinnerItems = new String[mTargetPanes.size()];
282            for (int i = 0; i < outputSpinnerItems.length; i++) {
283                outputSpinnerItems[i] = mTargetPanes.get(i).getPaneName();
284            }
285
286            mOutputAdapter.updateItems(outputSpinnerItems);
287
288        }
289    }
290
291}
292