samples/PhotoEditor/src/com/android/photoeditor/PhotoEditor.java

/*
 * Copyright (C) 2010 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.photoeditor;

import java.io.IOException;
import java.io.InputStream;

import com.android.photoeditor.filters.ImageUtils;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.View;

/**
 * Main activity of the photo editor.
 */
public class PhotoEditor extends Activity {

    private Toolbar toolbar;
    private View backButton;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        if (ImageUtils.gdk())
        {
          // HACK: create faked view in order to read bitcode in resource
                View view = new View(getApplication());
                byte[] pgm;
                int pgmLength;

            // read bitcode in res
            InputStream is = view.getResources().openRawResource(R.raw.libjni_photoeditor_portable);
            try {
               try {
                  pgm = new byte[1024];
                  pgmLength = 0;

                  while(true) {
                     int bytesLeft = pgm.length - pgmLength;
                     if (bytesLeft == 0) {
                         byte[] buf2 = new byte[pgm.length * 2];
                         System.arraycopy(pgm, 0, buf2, 0, pgm.length);
                         pgm = buf2;
                         bytesLeft = pgm.length - pgmLength;
                     }
                     int bytesRead = is.read(pgm, pgmLength, bytesLeft);
                     if (bytesRead <= 0) {
                        break;
                     }
                     pgmLength += bytesRead;
    	          }
                  ImageUtils.init(pgm, pgmLength);
               } finally {
                  is.close();
               }
            } catch(IOException e) {
               throw new Resources.NotFoundException();
            }
	}

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.initialize();

        final EffectsBar effectsBar = (EffectsBar) findViewById(R.id.effects_bar);
        final View actionBar = findViewById(R.id.action_bar);
        final View quickviewOn = findViewById(R.id.quickview_on_button);
        backButton = findViewById(R.id.action_bar_back);
        backButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                if (actionBar.isEnabled()) {
                    if (quickviewOn.getVisibility() == View.VISIBLE) {
                        quickviewOn.performClick();
                    } else if (effectsBar.hasEffectOn()) {
                        effectsBar.effectsOff(null);
                    } else {
                        tryRun(new Runnable() {

                            @Override
                            public void run() {
                                finish();
                            }
                        });
                    }
                }
            }
        });

        Intent intent = getIntent();
        if (Intent.ACTION_EDIT.equalsIgnoreCase(intent.getAction()) && (intent.getData() != null)) {
            toolbar.openPhoto(intent.getData());
        }
    }

    private void tryRun(final Runnable runnable) {
        if (findViewById(R.id.save_button).isEnabled()) {
            // Pop-up a dialog before executing the runnable to save unsaved photo.
            AlertDialog.Builder builder = new AlertDialog.Builder(this)
                    .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            toolbar.savePhoto(new Runnable() {

                                @Override
                                public void run() {
                                    runnable.run();
                                }
                            });
                        }
                    })
                    .setNeutralButton(R.string.no, new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            runnable.run();
                        }
                    })
                    .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // no-op
                        }
                    });
            builder.setMessage(R.string.save_photo).show();
            return;
        }

        runnable.run();
    }

    @Override
    public void onBackPressed() {
        backButton.performClick();
    }
}