android-m3/src/com/google/zxing/client/android/BarcodeReaderCaptureActivity.java - platform/external/zxing - Git at Google

 /*
  * Copyright (C) 2008 Google Inc.
  *
  * 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.google.zxing.client.android;

 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.PixelFormat;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.Window;
 import android.view.WindowManager.LayoutParams;
 import com.google.zxing.Result;
 import com.google.zxing.ResultPoint;
 import com.google.zxing.client.result.ParsedReaderResult;
 import com.google.zxing.client.result.ParsedReaderResultType;

 /**
  * The barcode reader activity itself. This is loosely based on the CameraPreview
  * example included in the Android SDK.
  *
  * @author dswitkin@google.com (Daniel Switkin)
  * @author Android Team (for CameraPreview example)
  */
 public final class BarcodeReaderCaptureActivity extends Activity {

   private CameraManager cameraManager;
   private CameraSurfaceView surfaceView;
   private CameraThread cameraThread;

   private static final int ABOUT_ID = Menu.FIRST;
   private static final int HELP_ID = Menu.FIRST + 1;

   @Override
   public void onCreate(Bundle icicle) {
     super.onCreate(icicle);
     requestWindowFeature(Window.FEATURE_NO_TITLE);

     // Make sure to create a TRANSLUCENT window. This is required for SurfaceView to work.
     // Eventually this'll be done by the system automatically.
     getWindow().setAttributes(new LayoutParams(LayoutParams.APPLICATION_TYPE,
         LayoutParams.NO_STATUS_BAR_FLAG));
     getWindow().setFormat(PixelFormat.TRANSLUCENT);

     cameraManager = new CameraManager(getApplication());
     surfaceView = new CameraSurfaceView(getApplication(), cameraManager);
     setContentView(surfaceView);
     cameraThread = new CameraThread(this, surfaceView, cameraManager, messageHandler);
     cameraThread.start();

     // TODO re-enable this when issues with Matrix.setPolyToPoly() are resolved
     //GridSampler.setGridSampler(new AndroidGraphicsGridSampler());
   }

   @Override
   protected boolean isFullscreenOpaque() {
     // Our main window is set to translucent, but we know that we will
     // fill it with opaque data. Tell the system that so it can perform
     // some important optimizations.
     return true;
   }

   @Override
   protected void onResume() {
     super.onResume();
     cameraManager.openDriver();
     if (cameraThread == null) {
       cameraThread = new CameraThread(this, surfaceView, cameraManager, messageHandler);
       cameraThread.start();
     }
   }

   @Override
   protected void onPause() {
     super.onPause();
     if (cameraThread != null) {
       cameraThread.quitSynchronously();
       cameraThread = null;
     }
     cameraManager.closeDriver();
   }

   @Override
   public boolean onKeyDown(int keyCode, KeyEvent event) {
     if (keyCode == KeyEvent.KEYCODE_A) {
       cameraThread.setDecodeAllMode();
     } else if (keyCode == KeyEvent.KEYCODE_C) {
       Message save = Message.obtain(cameraThread.handler, R.id.save);
       save.sendToTarget();
     } else if (keyCode == KeyEvent.KEYCODE_P) {
       cameraManager.setUsePreviewForDecode(true);
     } else if (keyCode == KeyEvent.KEYCODE_Q) {
       cameraThread.setDecodeQRMode();
     } else if (keyCode == KeyEvent.KEYCODE_S) {
       cameraManager.setUsePreviewForDecode(false);
     } else if (keyCode == KeyEvent.KEYCODE_T) {
       cameraThread.toggleTracing();
     } else if (keyCode == KeyEvent.KEYCODE_U) {
       cameraThread.setDecode1DMode();
     } else {
       return super.onKeyDown(keyCode, event);
     }
     return true;
   }

   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
     super.onCreateOptionsMenu(menu);
     menu.add(0, ABOUT_ID, R.string.menu_about);
     menu.add(0, HELP_ID, R.string.menu_help);
     return true;
   }

   @Override
   public boolean onOptionsItemSelected(Menu.Item item) {
     Context context = getApplication();
     switch (item.getId()) {
       case ABOUT_ID:
         showAlert(context.getString(R.string.title_about),
             context.getString(R.string.msg_about),
             context.getString(R.string.button_ok), null, true, null);
         break;
       case HELP_ID:
         showAlert(context.getString(R.string.title_help),
             context.getString(R.string.msg_help),
             context.getString(R.string.button_ok), null, true, null);
         break;
     }
     return super.onOptionsItemSelected(item);
   }

   private final Handler messageHandler = new Handler() {
     @Override
     public void handleMessage(Message message) {
       switch (message.what) {
         case R.id.decode_succeeded:
           int duration = message.arg1;
           handleDecode((Result) message.obj, duration);
           break;
       }
     }
   };

   public void restartPreview() {
     Message restart = Message.obtain(cameraThread.handler, R.id.restart_preview);
     restart.sendToTarget();
   }

   // TODO(dswitkin): These deprecated showAlert calls need to be updated.
   private void handleDecode(Result rawResult, int duration) {
     ResultPoint[] points = rawResult.getResultPoints();
     if (points != null && points.length > 0) {
       surfaceView.drawResultPoints(points);
     }

     Context context = getApplication();
     ParsedReaderResult readerResult = parseReaderResult(rawResult);
     ResultHandler handler = new ResultHandler(this, readerResult);
     if (handler.getIntent() != null) {
       // Can be handled by some external app; ask if the user wants to
       // proceed first though
       Message yesMessage = handler.obtainMessage(R.string.button_yes);
       Message noMessage = handler.obtainMessage(R.string.button_no);
       String title = context.getString(getDialogTitleID(readerResult.getType())) +
           " (" + duration + " ms)";
       showAlert(title, readerResult.getDisplayResult(), context.getString(R.string.button_yes),
           yesMessage, context.getString(R.string.button_no), noMessage, true, noMessage);
     } else {
       // Just show information to user
       Message okMessage = handler.obtainMessage(R.string.button_ok);
       String title = context.getString(R.string.title_barcode_detected) +
           " (" + duration + " ms)";
       showAlert(title, readerResult.getDisplayResult(), context.getString(R.string.button_ok),
           okMessage, null, null, true, okMessage);
     }
   }

   private static ParsedReaderResult parseReaderResult(Result rawResult) {
     ParsedReaderResult readerResult = ParsedReaderResult.parseReaderResult(rawResult);
     if (readerResult.getType().equals(ParsedReaderResultType.TEXT)) {
       String rawText = rawResult.getText();
       AndroidIntentParsedResult androidResult = AndroidIntentParsedResult.parse(rawText);
       if (androidResult != null) {
         Intent intent = androidResult.getIntent();
         if (!Intent.VIEW_ACTION.equals(intent.getAction())) {
           // For now, don't take anything that just parses as a View action. A lot
           // of things are accepted as a View action by default.
           readerResult = androidResult;
         }
       }
     }
     return readerResult;
   }

   private static int getDialogTitleID(ParsedReaderResultType type) {
     if (type.equals(ParsedReaderResultType.ADDRESSBOOK)) {
       return R.string.title_add_contact;
     } else if (type.equals(ParsedReaderResultType.URI) ||
                type.equals(ParsedReaderResultType.BOOKMARK) ||
                type.equals(ParsedReaderResultType.URLTO)) {
       return R.string.title_open_url;
     } else if (type.equals(ParsedReaderResultType.EMAIL) ||
                type.equals(ParsedReaderResultType.EMAIL_ADDRESS)) {
       return R.string.title_compose_email;
     } else if (type.equals(ParsedReaderResultType.UPC)) {
       return R.string.title_lookup_barcode;
     } else if (type.equals(ParsedReaderResultType.TEL)) {
       return R.string.title_dial;
     } else if (type.equals(ParsedReaderResultType.GEO)) {
       return R.string.title_view_maps;
     } else {
       return R.string.title_barcode_detected;
     }
   }

 }
	/*
	* Copyright (C) 2008 Google Inc.
	*
	* 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.google.zxing.client.android;

	import android.app.Activity;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.PixelFormat;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.view.KeyEvent;
	import android.view.Menu;
	import android.view.Window;
	import android.view.WindowManager.LayoutParams;
	import com.google.zxing.Result;
	import com.google.zxing.ResultPoint;
	import com.google.zxing.client.result.ParsedReaderResult;
	import com.google.zxing.client.result.ParsedReaderResultType;

	/**
	* The barcode reader activity itself. This is loosely based on the CameraPreview
	* example included in the Android SDK.
	*
	* @author dswitkin@google.com (Daniel Switkin)
	* @author Android Team (for CameraPreview example)
	*/
	public final class BarcodeReaderCaptureActivity extends Activity {

	private CameraManager cameraManager;
	private CameraSurfaceView surfaceView;
	private CameraThread cameraThread;

	private static final int ABOUT_ID = Menu.FIRST;
	private static final int HELP_ID = Menu.FIRST + 1;

	@Override
	public void onCreate(Bundle icicle) {
	super.onCreate(icicle);
	requestWindowFeature(Window.FEATURE_NO_TITLE);

	// Make sure to create a TRANSLUCENT window. This is required for SurfaceView to work.
	// Eventually this'll be done by the system automatically.
	getWindow().setAttributes(new LayoutParams(LayoutParams.APPLICATION_TYPE,
	LayoutParams.NO_STATUS_BAR_FLAG));
	getWindow().setFormat(PixelFormat.TRANSLUCENT);

	cameraManager = new CameraManager(getApplication());
	surfaceView = new CameraSurfaceView(getApplication(), cameraManager);
	setContentView(surfaceView);
	cameraThread = new CameraThread(this, surfaceView, cameraManager, messageHandler);
	cameraThread.start();

	// TODO re-enable this when issues with Matrix.setPolyToPoly() are resolved
	//GridSampler.setGridSampler(new AndroidGraphicsGridSampler());
	}

	@Override
	protected boolean isFullscreenOpaque() {
	// Our main window is set to translucent, but we know that we will
	// fill it with opaque data. Tell the system that so it can perform
	// some important optimizations.
	return true;
	}

	@Override
	protected void onResume() {
	super.onResume();
	cameraManager.openDriver();
	if (cameraThread == null) {
	cameraThread = new CameraThread(this, surfaceView, cameraManager, messageHandler);
	cameraThread.start();
	}
	}

	@Override
	protected void onPause() {
	super.onPause();
	if (cameraThread != null) {
	cameraThread.quitSynchronously();
	cameraThread = null;
	}
	cameraManager.closeDriver();
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
	if (keyCode == KeyEvent.KEYCODE_A) {
	cameraThread.setDecodeAllMode();
	} else if (keyCode == KeyEvent.KEYCODE_C) {
	Message save = Message.obtain(cameraThread.handler, R.id.save);
	save.sendToTarget();
	} else if (keyCode == KeyEvent.KEYCODE_P) {
	cameraManager.setUsePreviewForDecode(true);
	} else if (keyCode == KeyEvent.KEYCODE_Q) {
	cameraThread.setDecodeQRMode();
	} else if (keyCode == KeyEvent.KEYCODE_S) {
	cameraManager.setUsePreviewForDecode(false);
	} else if (keyCode == KeyEvent.KEYCODE_T) {
	cameraThread.toggleTracing();
	} else if (keyCode == KeyEvent.KEYCODE_U) {
	cameraThread.setDecode1DMode();
	} else {
	return super.onKeyDown(keyCode, event);
	}
	return true;
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
	super.onCreateOptionsMenu(menu);
	menu.add(0, ABOUT_ID, R.string.menu_about);
	menu.add(0, HELP_ID, R.string.menu_help);
	return true;
	}

	@Override
	public boolean onOptionsItemSelected(Menu.Item item) {
	Context context = getApplication();
	switch (item.getId()) {
	case ABOUT_ID:
	showAlert(context.getString(R.string.title_about),
	context.getString(R.string.msg_about),
	context.getString(R.string.button_ok), null, true, null);
	break;
	case HELP_ID:
	showAlert(context.getString(R.string.title_help),
	context.getString(R.string.msg_help),
	context.getString(R.string.button_ok), null, true, null);
	break;
	}
	return super.onOptionsItemSelected(item);
	}

	private final Handler messageHandler = new Handler() {
	@Override
	public void handleMessage(Message message) {
	switch (message.what) {
	case R.id.decode_succeeded:
	int duration = message.arg1;
	handleDecode((Result) message.obj, duration);
	break;
	}
	}
	};

	public void restartPreview() {
	Message restart = Message.obtain(cameraThread.handler, R.id.restart_preview);
	restart.sendToTarget();
	}

	// TODO(dswitkin): These deprecated showAlert calls need to be updated.
	private void handleDecode(Result rawResult, int duration) {
	ResultPoint[] points = rawResult.getResultPoints();
	if (points != null && points.length > 0) {
	surfaceView.drawResultPoints(points);
	}

	Context context = getApplication();
	ParsedReaderResult readerResult = parseReaderResult(rawResult);
	ResultHandler handler = new ResultHandler(this, readerResult);
	if (handler.getIntent() != null) {
	// Can be handled by some external app; ask if the user wants to
	// proceed first though
	Message yesMessage = handler.obtainMessage(R.string.button_yes);
	Message noMessage = handler.obtainMessage(R.string.button_no);
	String title = context.getString(getDialogTitleID(readerResult.getType())) +
	" (" + duration + " ms)";
	showAlert(title, readerResult.getDisplayResult(), context.getString(R.string.button_yes),
	yesMessage, context.getString(R.string.button_no), noMessage, true, noMessage);
	} else {
	// Just show information to user
	Message okMessage = handler.obtainMessage(R.string.button_ok);
	String title = context.getString(R.string.title_barcode_detected) +
	" (" + duration + " ms)";
	showAlert(title, readerResult.getDisplayResult(), context.getString(R.string.button_ok),
	okMessage, null, null, true, okMessage);
	}
	}

	private static ParsedReaderResult parseReaderResult(Result rawResult) {
	ParsedReaderResult readerResult = ParsedReaderResult.parseReaderResult(rawResult);
	if (readerResult.getType().equals(ParsedReaderResultType.TEXT)) {
	String rawText = rawResult.getText();
	AndroidIntentParsedResult androidResult = AndroidIntentParsedResult.parse(rawText);
	if (androidResult != null) {
	Intent intent = androidResult.getIntent();
	if (!Intent.VIEW_ACTION.equals(intent.getAction())) {
	// For now, don't take anything that just parses as a View action. A lot
	// of things are accepted as a View action by default.
	readerResult = androidResult;
	}
	}
	}
	return readerResult;
	}

	private static int getDialogTitleID(ParsedReaderResultType type) {
	if (type.equals(ParsedReaderResultType.ADDRESSBOOK)) {
	return R.string.title_add_contact;
	} else if (type.equals(ParsedReaderResultType.URI) \|\|
	type.equals(ParsedReaderResultType.BOOKMARK) \|\|
	type.equals(ParsedReaderResultType.URLTO)) {
	return R.string.title_open_url;
	} else if (type.equals(ParsedReaderResultType.EMAIL) \|\|
	type.equals(ParsedReaderResultType.EMAIL_ADDRESS)) {
	return R.string.title_compose_email;
	} else if (type.equals(ParsedReaderResultType.UPC)) {
	return R.string.title_lookup_barcode;
	} else if (type.equals(ParsedReaderResultType.TEL)) {
	return R.string.title_dial;
	} else if (type.equals(ParsedReaderResultType.GEO)) {
	return R.string.title_view_maps;
	} else {
	return R.string.title_barcode_detected;
	}
	}

	}