Android Open Source - Sketcher Sketcher

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License

The source code is released under:

Apache License

Java Source Code

package org.sketcher;
// w  w  w  .j a v a  2s  .  c  o m
import org.sketcher.colorpicker.Picker;
import org.sketcher.colorpicker.PickerDialog;
import org.sketcher.style.StylesFactory;

import android.app.Activity;
import android.app.Dialog;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Paint;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;

public class Sketcher extends Activity {
  private static final short GROUP_BRUSHES = 0x1000;
  private static final short MENU_CLEAR = 0x2001;
  private static final short MENU_SAVE = 0x2002;
  private static final short MENU_SHARE = 0x2003;
  private static final short MENU_COLOR = 0x2004;
  private static final short MENU_ABOUT = 0x2005;
  private static final short MENU_UNDO = 0x2006;
  private static final String PREFS_NAME = "preferences";
  private static final String KEY_CHANGELOG_VERSION_VIEWED = "lastVersionDialogShowed";

  private Surface surface;
  private final FileHelper fileHelper = new FileHelper(this);

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // register nullwire exception handler which sends crash reports to
    // http://trace.nullwire.com/. Disabled since it's down
    // ExceptionHandler.register(this);

    setContentView(R.layout.main);
    surface = (Surface) findViewById(R.id.surface);

    try {
      // current version
      PackageInfo packageInfo = getPackageManager().getPackageInfo(
          getPackageName(), 0);
      int versionCode = packageInfo.versionCode;

      // version where changelog has been viewed
      SharedPreferences settings = getSharedPreferences(PREFS_NAME,
          MODE_PRIVATE);
      int viewedChangelogVersion = settings.getInt(
          KEY_CHANGELOG_VERSION_VIEWED, 0);

      if (viewedChangelogVersion < versionCode) {
        Editor editor = settings.edit();
        editor.putInt(KEY_CHANGELOG_VERSION_VIEWED, versionCode);
        editor.commit();
        showAboutDialog();
      }
    } catch (NameNotFoundException e) {
      Log.w("Unable to get version code. Will not show changelog", e);
    }
  }

  @Override
  protected void onPause() {
    super.onPause();

    if (fileHelper.isSaved) {
      return;
    }
    // wrapped to a new thread since it can be killed due to time limits for
    // #onPause() method
    new Thread() {
      @Override
      public void run() {
        fileHelper.saveBitmap();
      }
    }.run();
  }

  @Override
  protected void onResume() {
    super.onResume();
    fileHelper.isSaved = false;
    getSurface().setInitialBitmap(fileHelper.getSavedBitmap());
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);

    menu.add(0, MENU_UNDO, 0, R.string.undo).setIcon(
        android.R.drawable.ic_menu_revert);
    menu.add(0, MENU_SAVE, 0, R.string.save).setIcon(
        android.R.drawable.ic_menu_save);
    SubMenu subMenu = menu.addSubMenu(R.string.brushes).setIcon(
        android.R.drawable.ic_menu_edit);
    menu.add(0, MENU_COLOR, 0, R.string.color).setIcon(
        android.R.drawable.ic_menu_preferences);
    menu.add(0, MENU_ABOUT, 0, R.string.about).setIcon(
        android.R.drawable.ic_menu_info_details);

    menu.add(0, MENU_SHARE, 0, R.string.send).setIcon(
        android.R.drawable.ic_menu_send);
    menu.add(0, MENU_CLEAR, 0, R.string.clear).setIcon(
        android.R.drawable.ic_menu_close_clear_cancel);

    subMenu.add(GROUP_BRUSHES, StylesFactory.ERASER, 0, R.string.eraser);
    subMenu.add(GROUP_BRUSHES, StylesFactory.SKETCHY, 0, R.string.sketchy);
    subMenu.add(GROUP_BRUSHES, StylesFactory.SIMPLE, 0, R.string.simple);
    subMenu.add(GROUP_BRUSHES, StylesFactory.SHADED, 0, R.string.shaded);
    subMenu.add(GROUP_BRUSHES, StylesFactory.CHROME, 0, R.string.chrome);
    subMenu.add(GROUP_BRUSHES, StylesFactory.FUR, 0, R.string.fur);
    subMenu.add(GROUP_BRUSHES, StylesFactory.LONGFUR, 0, R.string.longfur);
    subMenu.add(GROUP_BRUSHES, StylesFactory.WEB, 0, R.string.web);
    subMenu.add(GROUP_BRUSHES, StylesFactory.SQUARES, 0, R.string.squares);
    subMenu.add(GROUP_BRUSHES, StylesFactory.RIBBON, 0, R.string.ribbon);
    subMenu.add(GROUP_BRUSHES, StylesFactory.CIRCLES, 0, R.string.circles);
    subMenu.add(GROUP_BRUSHES, StylesFactory.GRID, 0, R.string.grid);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getGroupId() == GROUP_BRUSHES) {
      getSurface().setStyle(StylesFactory.getStyle(item.getItemId()));
      return true;
    }

    switch (item.getItemId()) {
    case MENU_CLEAR:
      getSurface().clearBitmap();
      return true;
    case MENU_SAVE:
      fileHelper.saveToSD();
      return true;
    case MENU_SHARE:
      fileHelper.share();
      return true;
    case MENU_ABOUT:
      showAboutDialog();
      return true;
    case MENU_COLOR:
      new PickerDialog(this, new Picker.OnColorChangedListener() {
        @Override
        public void colorChanged(Paint color) {
          getSurface().setPaintColor(color);
        }
      }, getSurface().getPaintColor()).show();
      return true;
    case MENU_UNDO:
      getSurface().undo();
      return true;

    default:
      return false;
    }
  }

  private void showAboutDialog() {
    Dialog dialog = new AboutDialog(this);
    dialog.show();
  }

  Surface getSurface() {
    return surface;
  }

  // @Override
  // public boolean onKeyDown(int keyCode, KeyEvent event) {
  // switch(keyCode) {
  // case KeyEvent.KEYCODE_BACK:
  // getSurface().undo();
  // return true;
  // }
  // return super.onKeyDown(keyCode, event);
  // }
}

Java Source Code List

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