org.odk.collect.android.widgets.AnnotateWidget.java Source code

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Here is the source code for org.odk.collect.android.widgets.AnnotateWidget.java

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/*
 * Copyright (C) 2012 University of Washington
 *
 * 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 org.odk.collect.android.widgets;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.support.v4.content.FileProvider;
import android.view.View;
import android.widget.Button;

import org.javarosa.form.api.FormEntryPrompt;
import org.odk.collect.android.BuildConfig;
import org.odk.collect.android.R;
import org.odk.collect.android.activities.DrawActivity;
import org.odk.collect.android.application.Collect;
import org.odk.collect.android.listeners.PermissionListener;
import org.odk.collect.android.utilities.FileUtils;

import java.io.File;
import java.util.Locale;

import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
import static org.odk.collect.android.utilities.ApplicationConstants.RequestCodes;

/**
 * Image widget that supports annotations on the image.
 *
 * @author BehrAtherton@gmail.com
 * @author Carl Hartung (carlhartung@gmail.com)
 * @author Yaw Anokwa (yanokwa@gmail.com)
 */
@SuppressLint("ViewConstructor")
public class AnnotateWidget extends BaseImageWidget {

    private Button captureButton;
    private Button chooseButton;
    private Button annotateButton;

    public AnnotateWidget(Context context, FormEntryPrompt prompt) {
        super(context, prompt);
        imageClickHandler = new DrawImageClickHandler(DrawActivity.OPTION_ANNOTATE, RequestCodes.ANNOTATE_IMAGE,
                R.string.annotate_image);
        imageCaptureHandler = new ImageCaptureHandler();
        setUpLayout();
        setUpBinary();
        addAnswerView(answerLayout);
    }

    @Override
    protected void setUpLayout() {
        super.setUpLayout();
        captureButton = getSimpleButton(getContext().getString(R.string.capture_image), R.id.capture_image);

        chooseButton = getSimpleButton(getContext().getString(R.string.choose_image), R.id.choose_image);

        annotateButton = getSimpleButton(getContext().getString(R.string.markup_image), R.id.markup_image);
        if (binaryName == null) {
            annotateButton.setEnabled(false);
        }
        annotateButton.setOnClickListener(v -> imageClickHandler.clickImage("annotateButton"));

        answerLayout.addView(captureButton);
        answerLayout.addView(chooseButton);
        answerLayout.addView(annotateButton);
        answerLayout.addView(errorTextView);

        hideButtonsIfNeeded();
        errorTextView.setVisibility(View.GONE);
    }

    @Override
    public Intent addExtrasToIntent(Intent intent) {
        intent.putExtra(DrawActivity.SCREEN_ORIENTATION, calculateScreenOrientation());
        return intent;
    }

    @Override
    public void clearAnswer() {
        super.clearAnswer();
        annotateButton.setEnabled(false);

        // reset buttons
        captureButton.setText(getContext().getString(R.string.capture_image));
    }

    @Override
    public void setOnLongClickListener(OnLongClickListener l) {
        captureButton.setOnLongClickListener(l);
        chooseButton.setOnLongClickListener(l);
        annotateButton.setOnLongClickListener(l);
        super.setOnLongClickListener(l);
    }

    @Override
    public void cancelLongPress() {
        super.cancelLongPress();
        captureButton.cancelLongPress();
        chooseButton.cancelLongPress();
        annotateButton.cancelLongPress();
    }

    @Override
    public void onButtonClick(int buttonId) {
        switch (buttonId) {
        case R.id.capture_image:
            getPermissionUtils().requestCameraPermission((Activity) getContext(), new PermissionListener() {
                @Override
                public void granted() {
                    captureImage();
                }

                @Override
                public void denied() {
                }
            });
            break;
        case R.id.choose_image:
            imageCaptureHandler.chooseImage(R.string.annotate_image);
            break;
        }
    }

    private void hideButtonsIfNeeded() {
        if (getFormEntryPrompt().getAppearanceHint() != null
                && getFormEntryPrompt().getAppearanceHint().toLowerCase(Locale.ENGLISH).contains("new")) {
            chooseButton.setVisibility(View.GONE);
        }
    }

    private int calculateScreenOrientation() {
        Bitmap bmp = null;
        if (imageView != null) {
            bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
        }

        return bmp != null && bmp.getHeight() > bmp.getWidth() ? SCREEN_ORIENTATION_PORTRAIT
                : SCREEN_ORIENTATION_LANDSCAPE;
    }

    private void captureImage() {
        errorTextView.setVisibility(View.GONE);
        Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        // We give the camera an absolute filename/path where to put the
        // picture because of bug:
        // http://code.google.com/p/android/issues/detail?id=1480
        // The bug appears to be fixed in Android 2.0+, but as of feb 2,
        // 2010, G1 phones only run 1.6. Without specifying the path the
        // images returned by the camera in 1.6 (and earlier) are ~1/4
        // the size. boo.

        Uri uri = FileProvider.getUriForFile(getContext(), BuildConfig.APPLICATION_ID + ".provider",
                new File(Collect.TMPFILE_PATH));
        // if this gets modified, the onActivityResult in
        // FormEntyActivity will also need to be updated.
        intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, uri);
        FileUtils.grantFilePermissions(intent, uri, getContext());

        imageCaptureHandler.captureImage(intent, RequestCodes.IMAGE_CAPTURE, R.string.annotate_image);
    }
}