summaryrefslogtreecommitdiffstats
path: root/src/com/android/camera/PhotoUI.java
blob: a364d797e1328ea8b0db249edc200e39b1af4219 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package com.android.camera;

import android.hardware.Camera;
import android.hardware.Camera.Face;
import android.hardware.Camera.FaceDetectionListener;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLayoutChangeListener;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.widget.FrameLayout;
import android.widget.FrameLayout.LayoutParams;
import android.widget.Toast;

import com.android.camera.CameraPreference.OnPreferenceChangedListener;
import com.android.camera.FocusOverlayManager.FocusUI;
import com.android.camera.ui.AbstractSettingPopup;
import com.android.camera.ui.CountDownView;
import com.android.camera.ui.CountDownView.OnCountDownFinishedListener;
import com.android.camera.ui.FaceView;
import com.android.camera.ui.FocusIndicator;
import com.android.camera.ui.PieRenderer;
import com.android.camera.ui.PieRenderer.PieListener;
import com.android.camera.ui.RenderOverlay;
import com.android.camera.ui.ZoomRenderer;
import com.android.gallery3d.R;
import com.android.gallery3d.common.ApiHelper;

import java.util.List;

public class PhotoUI implements PieListener,
    SurfaceHolder.Callback,
    PreviewGestures.SingleTapListener,
    FocusUI,
    LocationManager.Listener,
    FaceDetectionListener,
    PreviewGestures.SwipeListener {

    private static final String TAG = "CAM_UI";

    private CameraActivity mActivity;
    private PhotoController mController;
    private PreviewGestures mGestures;

    private View mRootView;
    private Object mSurfaceTexture;
    private volatile SurfaceHolder mSurfaceHolder;

    private AbstractSettingPopup mPopup;
    private ShutterButton mShutterButton;
    private CountDownView mCountDownView;

    private FaceView mFaceView;
    private RenderOverlay mRenderOverlay;
    private View mReviewCancelButton;
    private View mReviewDoneButton;
    private View mReviewRetakeButton;

    private View mMenuButton;
    private View mBlocker;
    private PhotoMenu mMenu;

    private OnScreenIndicators mOnScreenIndicators;

    private PieRenderer mPieRenderer;
    private ZoomRenderer mZoomRenderer;
    private Toast mNotSelectableToast;

    private int mZoomMax;
    private List<Integer> mZoomRatios;

    private int mPreviewWidth = 0;
    private int mPreviewHeight = 0;
    private View mPreviewThumb;

    private OnLayoutChangeListener mLayoutListener = new OnLayoutChangeListener() {
        @Override
        public void onLayoutChange(View v, int left, int top, int right,
                int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
            int width = right - left;
            int height = bottom - top;
            // Full-screen screennail
            int w = width;
            int h = height;
            if (Util.getDisplayRotation(mActivity) % 180 != 0) {
                w = height;
                h = width;
            }
            if (mPreviewWidth != w || mPreviewHeight != h) {
                mPreviewWidth = w;
                mPreviewHeight = h;
                mController.onScreenSizeChanged(width, height, w, h);
            }
        }
    };

    public PhotoUI(CameraActivity activity, PhotoController controller, View parent) {
        mActivity = activity;
        mController = controller;
        mRootView = parent;

        mActivity.getLayoutInflater().inflate(R.layout.photo_module,
                (ViewGroup) mRootView, true);
        mRenderOverlay = (RenderOverlay) mRootView.findViewById(R.id.render_overlay);

        initIndicators();
        mCountDownView = (CountDownView) (mRootView.findViewById(R.id.count_down_to_capture));
        mCountDownView.setCountDownFinishedListener((OnCountDownFinishedListener) mController);

        if (ApiHelper.HAS_FACE_DETECTION) {
            ViewStub faceViewStub = (ViewStub) mRootView
                    .findViewById(R.id.face_view_stub);
            if (faceViewStub != null) {
                faceViewStub.inflate();
                mFaceView = (FaceView) mRootView.findViewById(R.id.face_view);
            }
        }

    }

    public View getRootView() {
        return mRootView;
    }

    private void initIndicators() {
        mOnScreenIndicators = new OnScreenIndicators(mActivity,
                mActivity.findViewById(R.id.on_screen_indicators));
    }

    public void onCameraOpened(PreferenceGroup prefGroup, ComboPreferences prefs,
            Camera.Parameters params, OnPreferenceChangedListener listener) {
        if (mPieRenderer == null) {
            mPieRenderer = new PieRenderer(mActivity);
            mPieRenderer.setPieListener(this);
            mRenderOverlay.addRenderer(mPieRenderer);
        }
        if (mMenu == null) {
            mMenu = new PhotoMenu(mActivity, this, mPieRenderer);
            mMenu.setListener(listener);
        }
        mMenu.initialize(prefGroup);

        if (mZoomRenderer == null) {
            mZoomRenderer = new ZoomRenderer(mActivity);
            mRenderOverlay.addRenderer(mZoomRenderer);
        }
        if (mGestures == null) {
            // this will handle gesture disambiguation and dispatching
            mGestures = new PreviewGestures(mActivity, this, mZoomRenderer, mPieRenderer,
                    this);
        }
        mGestures.reset();
        mGestures.setRenderOverlay(mRenderOverlay);
        mGestures.addTouchReceiver(mMenuButton);
        mGestures.addUnclickableArea(mBlocker);
        enablePreviewThumb(false);
        // make sure to add touch targets for image capture
        if (mController.isImageCaptureIntent()) {
            if (mReviewCancelButton != null) {
                mGestures.addTouchReceiver(mReviewCancelButton);
            }
            if (mReviewDoneButton != null) {
                mGestures.addTouchReceiver(mReviewDoneButton);
            }
        }
        mRenderOverlay.requestLayout();

        initializeZoom(params);
        updateOnScreenIndicators(params, prefGroup, prefs);
    }

    private void openMenu() {
        if (mPieRenderer != null) {
            // If autofocus is not finished, cancel autofocus so that the
            // subsequent touch can be handled by PreviewGestures
            if (mController.getCameraState() == PhotoController.FOCUSING) {
                    mController.cancelAutoFocus();
            }
            mPieRenderer.showInCenter();
        }
    }

    public void initializeControlByIntent() {
        mBlocker = mActivity.findViewById(R.id.blocker);
        mPreviewThumb = mActivity.findViewById(R.id.preview_thumb);
        mPreviewThumb.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                mActivity.gotoGallery();
            }
        });
        mMenuButton = mActivity.findViewById(R.id.menu);
        mMenuButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                openMenu();
            }
        });
        if (mController.isImageCaptureIntent()) {
            mActivity.hideSwitcher();
            ViewGroup cameraControls = (ViewGroup) mActivity.findViewById(R.id.camera_controls);
            mActivity.getLayoutInflater().inflate(R.layout.review_module_control, cameraControls);

            mReviewDoneButton = mActivity.findViewById(R.id.btn_done);
            mReviewCancelButton = mActivity.findViewById(R.id.btn_cancel);
            mReviewRetakeButton = mActivity.findViewById(R.id.btn_retake);
            mReviewCancelButton.setVisibility(View.VISIBLE);

            mReviewDoneButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    mController.onCaptureDone();
                }
            });
            mReviewCancelButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    mController.onCaptureCancelled();
                }
            });

            mReviewRetakeButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    mController.onCaptureRetake();
                }
            });
        }
    }

    // called from onResume but only the first time
    public  void initializeFirstTime() {
        // Initialize shutter button.
        mShutterButton = mActivity.getShutterButton();
        mShutterButton.setImageResource(R.drawable.btn_new_shutter);
        mShutterButton.setOnShutterButtonListener(mController);
        mShutterButton.setVisibility(View.VISIBLE);
        mRootView.addOnLayoutChangeListener(mLayoutListener);
    }

    // called from onResume every other time
    public void initializeSecondTime(Camera.Parameters params) {
        initializeZoom(params);
        if (mController.isImageCaptureIntent()) {
            hidePostCaptureAlert();
        }
        if (mMenu != null) {
            mMenu.reloadPreferences();
        }
        mRootView.addOnLayoutChangeListener(mLayoutListener);
    }

    public void initializeZoom(Camera.Parameters params) {
        if ((params == null) || !params.isZoomSupported()
                || (mZoomRenderer == null)) return;
        mZoomMax = params.getMaxZoom();
        mZoomRatios = params.getZoomRatios();
        // Currently we use immediate zoom for fast zooming to get better UX and
        // there is no plan to take advantage of the smooth zoom.
        if (mZoomRenderer != null) {
            mZoomRenderer.setZoomMax(mZoomMax);
            mZoomRenderer.setZoom(params.getZoom());
            mZoomRenderer.setZoomValue(mZoomRatios.get(params.getZoom()));
            mZoomRenderer.setOnZoomChangeListener(new ZoomChangeListener());
        }
    }

    public void enableGestures(boolean enable) {
        if (mGestures != null) {
            mGestures.setEnabled(enable);
        }
    }

    @Override
    public void showGpsOnScreenIndicator(boolean hasSignal) { }

    @Override
    public void hideGpsOnScreenIndicator() { }

    public void overrideSettings(final String ... keyvalues) {
        mMenu.overrideSettings(keyvalues);
    }

    public void updateOnScreenIndicators(Camera.Parameters params,
            PreferenceGroup group, ComboPreferences prefs) {
        if (params == null) return;
        mOnScreenIndicators.updateSceneOnScreenIndicator(params.getSceneMode());
        mOnScreenIndicators.updateExposureOnScreenIndicator(params,
                CameraSettings.readExposure(prefs));
        mOnScreenIndicators.updateFlashOnScreenIndicator(params.getFlashMode());
        int wbIndex = 2;
        ListPreference pref = group.findPreference(CameraSettings.KEY_WHITE_BALANCE);
        if (pref != null) {
            wbIndex = pref.getCurrentIndex();
        }
        mOnScreenIndicators.updateWBIndicator(wbIndex);
        boolean location = RecordLocationPreference.get(
                prefs, mActivity.getContentResolver());
        mOnScreenIndicators.updateLocationIndicator(location);
    }

    public void setCameraState(int state) {
    }

    public boolean dispatchTouchEvent(MotionEvent m) {
        if (mGestures != null && mRenderOverlay != null) {
            return mGestures.dispatchTouch(m);
        }
        return false;
    }

    public boolean onBackPressed() {
        if (mPieRenderer != null && mPieRenderer.showsItems()) {
            mPieRenderer.hide();
            return true;
        }
        // In image capture mode, back button should:
        // 1) if there is any popup, dismiss them, 2) otherwise, get out of
        // image capture
        if (mController.isImageCaptureIntent()) {
            if (!removeTopLevelPopup()) {
                // no popup to dismiss, cancel image capture
                mController.onCaptureCancelled();
            }
            return true;
        } else if (!mController.isCameraIdle()) {
            // ignore backs while we're taking a picture
            return true;
        } else {
            return removeTopLevelPopup();
        }
    }

    public void onFullScreenChanged(boolean full) {
        if (mFaceView != null) {
            mFaceView.setBlockDraw(!full);
        }
        if (mPopup != null) {
            dismissPopup(full);
        }
        if (mGestures != null) {
            mGestures.setEnabled(full);
        }
        if (mRenderOverlay != null) {
            // this can not happen in capture mode
            mRenderOverlay.setVisibility(full ? View.VISIBLE : View.GONE);
        }
        if (mPieRenderer != null) {
            mPieRenderer.setBlockFocus(!full);
        }
        setShowMenu(full);
        if (mBlocker != null) {
            mBlocker.setVisibility(full ? View.VISIBLE : View.GONE);
        }
        if (!full && mCountDownView != null) mCountDownView.cancelCountDown();
    }

    public void enablePreviewThumb(boolean enabled) {
        if (enabled) {
            mGestures.addTouchReceiver(mPreviewThumb);
            mPreviewThumb.setVisibility(View.VISIBLE);
        } else {
            mGestures.removeTouchReceiver(mPreviewThumb);
            mPreviewThumb.setVisibility(View.GONE);
        }
    }

    public boolean removeTopLevelPopup() {
        // Remove the top level popup or dialog box and return true if there's any
        if (mPopup != null) {
            dismissPopup();
            return true;
        }
        return false;
    }

    public void showPopup(AbstractSettingPopup popup) {
        mActivity.hideUI();
        mBlocker.setVisibility(View.INVISIBLE);
        setShowMenu(false);
        mPopup = popup;
        mPopup.setVisibility(View.VISIBLE);
        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
        lp.gravity = Gravity.CENTER;
        ((FrameLayout) mRootView).addView(mPopup, lp);
        mGestures.addTouchReceiver(mPopup);
    }

    public void dismissPopup() {
        dismissPopup(true);
    }

    private void dismissPopup(boolean fullScreen) {
        if (fullScreen) {
            mActivity.showUI();
            mBlocker.setVisibility(View.VISIBLE);
        }
        setShowMenu(fullScreen);
        if (mPopup != null) {
            mGestures.removeTouchReceiver(mPopup);
            ((FrameLayout) mRootView).removeView(mPopup);
            mPopup = null;
        }
        mMenu.popupDismissed();
    }

    public void onShowSwitcherPopup() {
        if (mPieRenderer != null && mPieRenderer.showsItems()) {
            mPieRenderer.hide();
        }
    }

    private void setShowMenu(boolean show) {
        if (mOnScreenIndicators != null) {
            mOnScreenIndicators.setVisibility(show ? View.VISIBLE : View.GONE);
        }
        if (mMenuButton != null) {
            mMenuButton.setVisibility(show ? View.VISIBLE : View.GONE);
        }
    }

    public boolean collapseCameraControls() {
        // Remove all the popups/dialog boxes
        boolean ret = false;
        if (mPopup != null) {
            dismissPopup();
            ret = true;
        }
        onShowSwitcherPopup();
        return ret;
    }

    protected void showPostCaptureAlert() {
        mOnScreenIndicators.setVisibility(View.GONE);
        mMenuButton.setVisibility(View.GONE);
        Util.fadeIn(mReviewDoneButton);
        mShutterButton.setVisibility(View.INVISIBLE);
        Util.fadeIn(mReviewRetakeButton);
        pauseFaceDetection();
    }

    protected void hidePostCaptureAlert() {
        mOnScreenIndicators.setVisibility(View.VISIBLE);
        mMenuButton.setVisibility(View.VISIBLE);
        Util.fadeOut(mReviewDoneButton);
        mShutterButton.setVisibility(View.VISIBLE);
        Util.fadeOut(mReviewRetakeButton);
        resumeFaceDetection();
    }

    public void setDisplayOrientation(int orientation) {
        if (mFaceView != null) {
            mFaceView.setDisplayOrientation(orientation);
        }
    }

    // shutter button handling

    public boolean isShutterPressed() {
        return mShutterButton.isPressed();
    }

    // focus handling


    private class ZoomChangeListener implements ZoomRenderer.OnZoomChangedListener {
        @Override
        public void onZoomValueChanged(int index) {
            int newZoom = mController.onZoomChanged(index);
            if (mZoomRenderer != null) {
                mZoomRenderer.setZoomValue(mZoomRatios.get(newZoom));
            }
        }

        @Override
        public void onZoomStart() {
            if (mPieRenderer != null) {
                mPieRenderer.setBlockFocus(true);
            }
        }

        @Override
        public void onZoomEnd() {
            if (mPieRenderer != null) {
                mPieRenderer.setBlockFocus(false);
            }
        }
    }

    @Override
    public void onPieOpened(int centerX, int centerY) {
        dismissPopup();
        mActivity.cancelActivityTouchHandling();
        mActivity.setSwipingEnabled(false);
        if (mFaceView != null) {
            mFaceView.setBlockDraw(true);
        }
    }

    @Override
    public void onPieClosed() {
        mActivity.setSwipingEnabled(true);
        if (mFaceView != null) {
            mFaceView.setBlockDraw(false);
        }
    }

    // Surface Listener

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        Log.v(TAG, "surfaceChanged:" + holder + " width=" + width + ". height="
                + height);
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        Log.v(TAG, "surfaceCreated: " + holder);
        mSurfaceHolder = holder;
        mController.onSurfaceCreated(holder);
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        Log.v(TAG, "surfaceDestroyed: " + holder);
        mSurfaceHolder = null;
        mController.stopPreview();
    }

    public Object getSurfaceTexture() {
        return mSurfaceTexture;
    }

    public void setSurfaceTexture(Object st) {
        mSurfaceTexture = st;
    }

    public SurfaceHolder getSurfaceHolder() {
        return mSurfaceHolder;
    }

    public boolean isCountingDown() {
        return mCountDownView.isCountingDown();
    }

    public void cancelCountDown() {
        mCountDownView.cancelCountDown();
    }

    public void startCountDown(int sec, boolean playSound) {
        mCountDownView.startCountDown(sec, playSound);
    }

    public void showPreferencesToast() {
        if (mNotSelectableToast == null) {
            String str = mActivity.getResources().getString(R.string.not_selectable_in_scene_mode);
            mNotSelectableToast = Toast.makeText(mActivity, str, Toast.LENGTH_SHORT);
        }
        mNotSelectableToast.show();
    }

    public void onPause() {
        mCountDownView.cancelCountDown();
        // Close the camera now because other activities may need to use it.
        mSurfaceTexture = null;

        // Clear UI.
        collapseCameraControls();
        if (mFaceView != null) mFaceView.clear();


        mRootView.removeOnLayoutChangeListener(mLayoutListener);
        mPreviewWidth = 0;
        mPreviewHeight = 0;
    }

    public void enableShutter(boolean enabled) {
        if (mShutterButton != null) {
            mShutterButton.setEnabled(enabled);
        }
    }

    public void pressShutterButton() {
        if (mShutterButton.isInTouchMode()) {
            mShutterButton.requestFocusFromTouch();
        } else {
            mShutterButton.requestFocus();
        }
        mShutterButton.setPressed(true);
    }

    // forward from preview gestures to controller
    @Override
    public void onSingleTapUp(View view, int x, int y) {
        mController.onSingleTapUp(view, x, y);
    }

    // focus UI implementation

    private FocusIndicator getFocusIndicator() {
        return (mFaceView != null && mFaceView.faceExists()) ? mFaceView : mPieRenderer;
    }

    @Override
    public boolean hasFaces() {
        return (mFaceView != null && mFaceView.faceExists());
    }

    public void clearFaces() {
        if (mFaceView != null) mFaceView.clear();
    }

    @Override
    public void clearFocus() {
        FocusIndicator indicator = getFocusIndicator();
        if (indicator != null) indicator.clear();
    }

    @Override
    public void setFocusPosition(int x, int y) {
        mPieRenderer.setFocus(x, y);
    }

    @Override
    public void onFocusStarted() {
        getFocusIndicator().showStart();
    }

    @Override
    public void onFocusSucceeded(boolean timeout) {
        getFocusIndicator().showSuccess(timeout);
    }

    @Override
    public void onFocusFailed(boolean timeout) {
        getFocusIndicator().showFail(timeout);
    }

    @Override
    public void pauseFaceDetection() {
        if (mFaceView != null) mFaceView.pause();
    }

    @Override
    public void resumeFaceDetection() {
        if (mFaceView != null) mFaceView.resume();
    }

    public void onStartFaceDetection(int orientation, boolean mirror) {
        mFaceView.clear();
        mFaceView.setVisibility(View.VISIBLE);
        mFaceView.setDisplayOrientation(orientation);
        mFaceView.setMirror(mirror);
        mFaceView.resume();
    }

    @Override
    public void onFaceDetection(Face[] faces, android.hardware.Camera camera) {
        mFaceView.setFaces(faces);
    }

    @Override
    public void onSwipe(int direction) {
        if (direction == PreviewGestures.DIR_UP) {
            openMenu();
        }
    }

}