352 lines
15 KiB
Java
352 lines
15 KiB
Java
package org.reactnative.camera;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.media.CamcorderProfile;
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import android.os.Build;
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import android.support.media.ExifInterface;
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import android.util.SparseArray;
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import android.view.ViewGroup;
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import com.facebook.react.bridge.Arguments;
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import com.facebook.react.bridge.ReactContext;
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import com.facebook.react.bridge.WritableMap;
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import com.facebook.react.uimanager.UIManagerModule;
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import com.google.android.cameraview.CameraView;
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import com.google.android.gms.vision.barcode.Barcode;
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import com.google.android.gms.vision.face.Face;
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import com.google.android.gms.vision.text.TextBlock;
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import com.google.zxing.Result;
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import org.reactnative.camera.events.*;
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import org.reactnative.camera.utils.ImageDimensions;
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import org.reactnative.barcodedetector.RNBarcodeDetector;
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import org.reactnative.facedetector.RNFaceDetector;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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public class RNCameraViewHelper {
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public static final String[][] exifTags = new String[][]{
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{"string", ExifInterface.TAG_ARTIST},
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{"int", ExifInterface.TAG_BITS_PER_SAMPLE},
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{"int", ExifInterface.TAG_COMPRESSION},
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{"string", ExifInterface.TAG_COPYRIGHT},
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{"string", ExifInterface.TAG_DATETIME},
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{"string", ExifInterface.TAG_IMAGE_DESCRIPTION},
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{"int", ExifInterface.TAG_IMAGE_LENGTH},
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{"int", ExifInterface.TAG_IMAGE_WIDTH},
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{"int", ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT},
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{"int", ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH},
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{"string", ExifInterface.TAG_MAKE},
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{"string", ExifInterface.TAG_MODEL},
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{"int", ExifInterface.TAG_ORIENTATION},
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{"int", ExifInterface.TAG_PHOTOMETRIC_INTERPRETATION},
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{"int", ExifInterface.TAG_PLANAR_CONFIGURATION},
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{"double", ExifInterface.TAG_PRIMARY_CHROMATICITIES},
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{"double", ExifInterface.TAG_REFERENCE_BLACK_WHITE},
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{"int", ExifInterface.TAG_RESOLUTION_UNIT},
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{"int", ExifInterface.TAG_ROWS_PER_STRIP},
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{"int", ExifInterface.TAG_SAMPLES_PER_PIXEL},
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{"string", ExifInterface.TAG_SOFTWARE},
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{"int", ExifInterface.TAG_STRIP_BYTE_COUNTS},
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{"int", ExifInterface.TAG_STRIP_OFFSETS},
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{"int", ExifInterface.TAG_TRANSFER_FUNCTION},
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{"double", ExifInterface.TAG_WHITE_POINT},
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{"double", ExifInterface.TAG_X_RESOLUTION},
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{"double", ExifInterface.TAG_Y_CB_CR_COEFFICIENTS},
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{"int", ExifInterface.TAG_Y_CB_CR_POSITIONING},
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{"int", ExifInterface.TAG_Y_CB_CR_SUB_SAMPLING},
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{"double", ExifInterface.TAG_Y_RESOLUTION},
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{"double", ExifInterface.TAG_APERTURE_VALUE},
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{"double", ExifInterface.TAG_BRIGHTNESS_VALUE},
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{"string", ExifInterface.TAG_CFA_PATTERN},
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{"int", ExifInterface.TAG_COLOR_SPACE},
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{"string", ExifInterface.TAG_COMPONENTS_CONFIGURATION},
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{"double", ExifInterface.TAG_COMPRESSED_BITS_PER_PIXEL},
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{"int", ExifInterface.TAG_CONTRAST},
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{"int", ExifInterface.TAG_CUSTOM_RENDERED},
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{"string", ExifInterface.TAG_DATETIME_DIGITIZED},
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{"string", ExifInterface.TAG_DATETIME_ORIGINAL},
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{"string", ExifInterface.TAG_DEVICE_SETTING_DESCRIPTION},
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{"double", ExifInterface.TAG_DIGITAL_ZOOM_RATIO},
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{"string", ExifInterface.TAG_EXIF_VERSION},
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{"double", ExifInterface.TAG_EXPOSURE_BIAS_VALUE},
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{"double", ExifInterface.TAG_EXPOSURE_INDEX},
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{"int", ExifInterface.TAG_EXPOSURE_MODE},
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{"int", ExifInterface.TAG_EXPOSURE_PROGRAM},
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{"double", ExifInterface.TAG_EXPOSURE_TIME},
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{"double", ExifInterface.TAG_F_NUMBER},
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{"string", ExifInterface.TAG_FILE_SOURCE},
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{"int", ExifInterface.TAG_FLASH},
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{"double", ExifInterface.TAG_FLASH_ENERGY},
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{"string", ExifInterface.TAG_FLASHPIX_VERSION},
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{"double", ExifInterface.TAG_FOCAL_LENGTH},
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{"int", ExifInterface.TAG_FOCAL_LENGTH_IN_35MM_FILM},
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{"int", ExifInterface.TAG_FOCAL_PLANE_RESOLUTION_UNIT},
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{"double", ExifInterface.TAG_FOCAL_PLANE_X_RESOLUTION},
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{"double", ExifInterface.TAG_FOCAL_PLANE_Y_RESOLUTION},
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{"int", ExifInterface.TAG_GAIN_CONTROL},
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{"int", ExifInterface.TAG_ISO_SPEED_RATINGS},
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{"string", ExifInterface.TAG_IMAGE_UNIQUE_ID},
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{"int", ExifInterface.TAG_LIGHT_SOURCE},
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{"string", ExifInterface.TAG_MAKER_NOTE},
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{"double", ExifInterface.TAG_MAX_APERTURE_VALUE},
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{"int", ExifInterface.TAG_METERING_MODE},
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{"int", ExifInterface.TAG_NEW_SUBFILE_TYPE},
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{"string", ExifInterface.TAG_OECF},
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{"int", ExifInterface.TAG_PIXEL_X_DIMENSION},
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{"int", ExifInterface.TAG_PIXEL_Y_DIMENSION},
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{"string", ExifInterface.TAG_RELATED_SOUND_FILE},
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{"int", ExifInterface.TAG_SATURATION},
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{"int", ExifInterface.TAG_SCENE_CAPTURE_TYPE},
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{"string", ExifInterface.TAG_SCENE_TYPE},
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{"int", ExifInterface.TAG_SENSING_METHOD},
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{"int", ExifInterface.TAG_SHARPNESS},
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{"double", ExifInterface.TAG_SHUTTER_SPEED_VALUE},
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{"string", ExifInterface.TAG_SPATIAL_FREQUENCY_RESPONSE},
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{"string", ExifInterface.TAG_SPECTRAL_SENSITIVITY},
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{"int", ExifInterface.TAG_SUBFILE_TYPE},
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{"string", ExifInterface.TAG_SUBSEC_TIME},
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{"string", ExifInterface.TAG_SUBSEC_TIME_DIGITIZED},
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{"string", ExifInterface.TAG_SUBSEC_TIME_ORIGINAL},
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{"int", ExifInterface.TAG_SUBJECT_AREA},
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{"double", ExifInterface.TAG_SUBJECT_DISTANCE},
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{"int", ExifInterface.TAG_SUBJECT_DISTANCE_RANGE},
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{"int", ExifInterface.TAG_SUBJECT_LOCATION},
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{"string", ExifInterface.TAG_USER_COMMENT},
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{"int", ExifInterface.TAG_WHITE_BALANCE},
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{"int", ExifInterface.TAG_GPS_ALTITUDE_REF},
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{"string", ExifInterface.TAG_GPS_AREA_INFORMATION},
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{"double", ExifInterface.TAG_GPS_DOP},
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{"string", ExifInterface.TAG_GPS_DATESTAMP},
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{"double", ExifInterface.TAG_GPS_DEST_BEARING},
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{"string", ExifInterface.TAG_GPS_DEST_BEARING_REF},
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{"double", ExifInterface.TAG_GPS_DEST_DISTANCE},
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{"string", ExifInterface.TAG_GPS_DEST_DISTANCE_REF},
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{"double", ExifInterface.TAG_GPS_DEST_LATITUDE},
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{"string", ExifInterface.TAG_GPS_DEST_LATITUDE_REF},
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{"double", ExifInterface.TAG_GPS_DEST_LONGITUDE},
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{"string", ExifInterface.TAG_GPS_DEST_LONGITUDE_REF},
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{"int", ExifInterface.TAG_GPS_DIFFERENTIAL},
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{"double", ExifInterface.TAG_GPS_IMG_DIRECTION},
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{"string", ExifInterface.TAG_GPS_IMG_DIRECTION_REF},
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{"string", ExifInterface.TAG_GPS_LATITUDE_REF},
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{"string", ExifInterface.TAG_GPS_LONGITUDE_REF},
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{"string", ExifInterface.TAG_GPS_MAP_DATUM},
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{"string", ExifInterface.TAG_GPS_MEASURE_MODE},
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{"string", ExifInterface.TAG_GPS_PROCESSING_METHOD},
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{"string", ExifInterface.TAG_GPS_SATELLITES},
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{"double", ExifInterface.TAG_GPS_SPEED},
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{"string", ExifInterface.TAG_GPS_SPEED_REF},
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{"string", ExifInterface.TAG_GPS_STATUS},
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{"string", ExifInterface.TAG_GPS_TIMESTAMP},
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{"double", ExifInterface.TAG_GPS_TRACK},
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{"string", ExifInterface.TAG_GPS_TRACK_REF},
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{"string", ExifInterface.TAG_GPS_VERSION_ID},
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{"string", ExifInterface.TAG_INTEROPERABILITY_INDEX},
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{"int", ExifInterface.TAG_THUMBNAIL_IMAGE_LENGTH},
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{"int", ExifInterface.TAG_THUMBNAIL_IMAGE_WIDTH},
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{"int", ExifInterface.TAG_DNG_VERSION},
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{"int", ExifInterface.TAG_DEFAULT_CROP_SIZE},
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{"int", ExifInterface.TAG_ORF_PREVIEW_IMAGE_START},
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{"int", ExifInterface.TAG_ORF_PREVIEW_IMAGE_LENGTH},
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{"int", ExifInterface.TAG_ORF_ASPECT_FRAME},
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{"int", ExifInterface.TAG_RW2_SENSOR_BOTTOM_BORDER},
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{"int", ExifInterface.TAG_RW2_SENSOR_LEFT_BORDER},
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{"int", ExifInterface.TAG_RW2_SENSOR_RIGHT_BORDER},
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{"int", ExifInterface.TAG_RW2_SENSOR_TOP_BORDER},
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{"int", ExifInterface.TAG_RW2_ISO},
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};
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// Mount error event
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public static void emitMountErrorEvent(ViewGroup view, String error) {
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CameraMountErrorEvent event = CameraMountErrorEvent.obtain(view.getId(), error);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Camera ready event
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public static void emitCameraReadyEvent(ViewGroup view) {
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CameraReadyEvent event = CameraReadyEvent.obtain(view.getId());
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Picture saved event
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public static void emitPictureSavedEvent(ViewGroup view, WritableMap response) {
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PictureSavedEvent event = PictureSavedEvent.obtain(view.getId(), response);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Face detection events
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public static void emitFacesDetectedEvent(
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ViewGroup view,
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SparseArray<Face> faces,
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ImageDimensions dimensions
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) {
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float density = view.getResources().getDisplayMetrics().density;
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double scaleX = (double) view.getWidth() / (dimensions.getWidth() * density);
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double scaleY = (double) view.getHeight() / (dimensions.getHeight() * density);
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FacesDetectedEvent event = FacesDetectedEvent.obtain(
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view.getId(),
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faces,
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dimensions,
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scaleX,
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scaleY
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);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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public static void emitFaceDetectionErrorEvent(ViewGroup view, RNFaceDetector faceDetector) {
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FaceDetectionErrorEvent event = FaceDetectionErrorEvent.obtain(view.getId(), faceDetector);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Barcode detection events
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public static void emitBarcodesDetectedEvent(
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ViewGroup view,
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SparseArray<Barcode> barcodes
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) {
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BarcodesDetectedEvent event = BarcodesDetectedEvent.obtain(
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view.getId(),
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barcodes
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);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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public static void emitBarcodeDetectionErrorEvent(ViewGroup view, RNBarcodeDetector barcodeDetector) {
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BarcodeDetectionErrorEvent event = BarcodeDetectionErrorEvent.obtain(view.getId(), barcodeDetector);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Bar code read event
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public static void emitBarCodeReadEvent(ViewGroup view, Result barCode) {
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BarCodeReadEvent event = BarCodeReadEvent.obtain(view.getId(), barCode);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Text recognition event
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public static void emitTextRecognizedEvent(
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ViewGroup view,
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SparseArray<TextBlock> textBlocks,
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ImageDimensions dimensions) {
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float density = view.getResources().getDisplayMetrics().density;
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double scaleX = (double) view.getWidth() / (dimensions.getWidth() * density);
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double scaleY = (double) view.getHeight() / (dimensions.getHeight() * density);
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TextRecognizedEvent event = TextRecognizedEvent.obtain(
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view.getId(),
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textBlocks,
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dimensions,
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scaleX,
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scaleY
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);
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ReactContext reactContext = (ReactContext) view.getContext();
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reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher().dispatchEvent(event);
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}
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// Utilities
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public static int getCorrectCameraRotation(int rotation, int facing) {
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if (facing == CameraView.FACING_FRONT) {
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return (rotation - 90 + 360) % 360;
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} else {
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return (-rotation + 90 + 360) % 360;
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}
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}
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public static CamcorderProfile getCamcorderProfile(int quality) {
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CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
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switch (quality) {
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case CameraModule.VIDEO_2160P:
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
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profile = CamcorderProfile.get(CamcorderProfile.QUALITY_2160P);
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}
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break;
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case CameraModule.VIDEO_1080P:
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profile = CamcorderProfile.get(CamcorderProfile.QUALITY_1080P);
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break;
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case CameraModule.VIDEO_720P:
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profile = CamcorderProfile.get(CamcorderProfile.QUALITY_720P);
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break;
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case CameraModule.VIDEO_480P:
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profile = CamcorderProfile.get(CamcorderProfile.QUALITY_480P);
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break;
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case CameraModule.VIDEO_4x3:
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profile = CamcorderProfile.get(CamcorderProfile.QUALITY_480P);
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profile.videoFrameWidth = 640;
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break;
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}
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return profile;
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}
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public static WritableMap getExifData(ExifInterface exifInterface) {
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WritableMap exifMap = Arguments.createMap();
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for (String[] tagInfo : exifTags) {
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String name = tagInfo[1];
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if (exifInterface.getAttribute(name) != null) {
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String type = tagInfo[0];
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switch (type) {
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case "string":
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exifMap.putString(name, exifInterface.getAttribute(name));
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break;
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case "int":
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exifMap.putInt(name, exifInterface.getAttributeInt(name, 0));
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break;
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case "double":
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exifMap.putDouble(name, exifInterface.getAttributeDouble(name, 0));
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break;
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}
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}
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}
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double[] latLong = exifInterface.getLatLong();
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if (latLong != null) {
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exifMap.putDouble(ExifInterface.TAG_GPS_LATITUDE, latLong[0]);
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exifMap.putDouble(ExifInterface.TAG_GPS_LONGITUDE, latLong[1]);
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exifMap.putDouble(ExifInterface.TAG_GPS_ALTITUDE, exifInterface.getAltitude(0));
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}
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return exifMap;
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}
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public static Bitmap generateSimulatorPhoto(int width, int height) {
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Bitmap fakePhoto = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(fakePhoto);
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Paint background = new Paint();
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background.setColor(Color.BLACK);
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canvas.drawRect(0, 0, width, height, background);
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Paint textPaint = new Paint();
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textPaint.setColor(Color.YELLOW);
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textPaint.setTextSize(35);
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Calendar calendar = Calendar.getInstance();
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SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd G '->' HH:mm:ss z");
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canvas.drawText(simpleDateFormat.format(calendar.getTime()), width * 0.1f, height * 0.2f, textPaint);
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canvas.drawText(simpleDateFormat.format(calendar.getTime()), width * 0.2f, height * 0.4f, textPaint);
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canvas.drawText(simpleDateFormat.format(calendar.getTime()), width * 0.3f, height * 0.6f, textPaint);
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canvas.drawText(simpleDateFormat.format(calendar.getTime()), width * 0.4f, height * 0.8f, textPaint);
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return fakePhoto;
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}
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}
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