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BebopVideoView to Mat

I come up against the great problem.
I`m try to BebopVideoView to Mat.
(BebopVideoView is parrot drone source code)
But I was failed for several days.
Here is the code.
package com.hyeonjung.dronecontroll.view;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.media.MediaCodec;
import android.media.MediaFormat;
import android.os.Environment;
import android.util.AttributeSet;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import com.parrot.arsdk.arcontroller.ARCONTROLLER_STREAM_CODEC_TYPE_ENUM;
import com.parrot.arsdk.arcontroller.ARControllerCodec;
import com.parrot.arsdk.arcontroller.ARFrame;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class BebopVideoView extends SurfaceView implements SurfaceHolder.Callback {
private static final String TAG = "BebopVideoView";
private static final String VIDEO_MIME_TYPE = "video/avc";
private static final int VIDEO_DEQUEUE_TIMEOUT = 33000;
private MediaCodec mMediaCodec;
private Lock mReadyLock;
private boolean mIsCodecConfigured = false;
private ByteBuffer mSpsBuffer;
private ByteBuffer mPpsBuffer;
private ByteBuffer[] mBuffers;
private static final int VIDEO_WIDTH = 640;
private static final int VIDEO_HEIGHT = 368;
public byte[] a;
public Mat k;
public BebopVideoView(Context context) {
super(context);
customInit();
}
public BebopVideoView(Context context, AttributeSet attrs) {
super(context, attrs);
customInit();
}
public BebopVideoView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
customInit();
}
private void customInit() {
mReadyLock = new ReentrantLock();
getHolder().addCallback(this);
}
public void displayFrame(ARFrame frame) {
mReadyLock.lock();
if ((mMediaCodec != null)) {
if (mIsCodecConfigured) {
// Here we have either a good PFrame, or an IFrame
int index = -1;
try {
index = mMediaCodec.dequeueInputBuffer(VIDEO_DEQUEUE_TIMEOUT);
} catch (IllegalStateException e) {
Log.e(TAG, "Error while dequeue input buffer");
}
if (index >= 0) {
ByteBuffer b;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
b = mMediaCodec.getInputBuffer(index); // fill inputBuffer with valid data
}
else {
b = mBuffers[index]; // fill inputBuffer with valid data
b.clear();
}
if (b != null) {
b.put(frame.getByteData(), 0, frame.getDataSize()); //write to b.
getMat(frame);
saveMat(k);
}
try {
mMediaCodec.queueInputBuffer(index, 0, frame.getDataSize(), 0, 0); //end of stream
} catch (IllegalStateException e) {
Log.e(TAG, "Error while queue input buffer");
}
}
}
// Try to display previous frame
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int outIndex;
try {
outIndex = mMediaCodec.dequeueOutputBuffer(info, 0);
while (outIndex >= 0) {
mMediaCodec.releaseOutputBuffer(outIndex, true);
outIndex = mMediaCodec.dequeueOutputBuffer(info, 0);
}
} catch (IllegalStateException e) {
Log.e(TAG, "Error while dequeue input buffer (outIndex)");
}
}
mReadyLock.unlock();
}
public void configureDecoder(ARControllerCodec codec) {
mReadyLock.lock();
if (codec.getType() == ARCONTROLLER_STREAM_CODEC_TYPE_ENUM.ARCONTROLLER_STREAM_CODEC_TYPE_H264) {
ARControllerCodec.H264 codecH264 = codec.getAsH264();
mSpsBuffer = ByteBuffer.wrap(codecH264.getSps().getByteData());
mPpsBuffer = ByteBuffer.wrap(codecH264.getPps().getByteData());
}
if ((mMediaCodec != null) && (mSpsBuffer != null)) {
configureMediaCodec();
}
mReadyLock.unlock();
}
private void configureMediaCodec() {
MediaFormat format = MediaFormat.createVideoFormat(VIDEO_MIME_TYPE, VIDEO_WIDTH, VIDEO_HEIGHT);
format.setByteBuffer("csd-0", mSpsBuffer);
format.setByteBuffer("csd-1", mPpsBuffer);
mMediaCodec.configure(format, getHolder().getSurface(), null, 0);
mMediaCodec.start();
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
mBuffers = mMediaCodec.getInputBuffers();
}
mIsCodecConfigured = true;
}
private void initMediaCodec(String type) {
try {
mMediaCodec = MediaCodec.createDecoderByType(type);
} catch (IOException e) {
Log.e(TAG, "Exception", e);
}
if ((mMediaCodec != null) && (mSpsBuffer != null)) {
configureMediaCodec();
}
}
private void releaseMediaCodec() {
if (mMediaCodec != null) {
if (mIsCodecConfigured) {
mMediaCodec.stop();
mMediaCodec.release();
}
mIsCodecConfigured = false;
mMediaCodec = null;
}
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
mReadyLock.lock();
initMediaCodec(VIDEO_MIME_TYPE);
mReadyLock.unlock();
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
mReadyLock.lock();
releaseMediaCodec();
mReadyLock.unlock();
}
public void getMat(ARFrame frame) {
k = new Mat();
k.get(150, 150, frame.getByteData());
k.put(150, 150, frame.getByteData());
//or
//byte[] a= new byte[b.remaining()];
//b.get(a);
//k.get(150, 150, a);
//k.put(150, 150, a);
}
public void saveMat (Mat mat) {
Mat mIntermediateMat = new Mat(150, 150, CvType.CV_8UC1);
Imgproc.cvtColor(mat, mIntermediateMat, Imgproc.COLOR_GRAY2BGR);
File path = new File(Environment.getExternalStorageDirectory() + "/data");
path.mkdirs();
File file = new File(path, "image.png");
String filename = file.toString();
Boolean bool = Imgcodecs.imwrite(filename, mIntermediateMat);
if (bool)
Log.i(TAG, "SUCCESS writing image to external storage");
else
Log.i(TAG, "Fail writing image to external storage");
}
}
I think I can get an image related data from ByteBuffer b or frame.get ByteData ().
I was confirmed ByteBuffer b and frame.getByteData().
There was char data type with a range of -128 to 127.
So I was confirmed the result of getMat, saveMat and the result was a NULL(Mat k).
What is wrong?
Please help me T.T

If you use a TextureView you can simply grab a bitmap of it and convert it to a Mat. You need to use the TextureView's provided surface rather than the typical SurfaceView holder. This will require some additional refactoring of the mediaCodec lifecycle, but is a fairly trivial change.
public class BebopVideoView extends TextureView implements TextureView.SurfaceTextureListener {
#Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
this.surface = new Surface(surface);
surfaceCreated = true;
}
...
}
And inside of configureMediaCodec use the class level surface captured in onSurfaceTextureAvailable instead....
mediaCodec.configure(format, surface, null, 0);
With a couple other minor tweaks you now have a lot more control over the view. You can do things like setTransform() and more importantly in your case getBitmap:
Mat mat = new Mat();
Utils.bitmapToMat(getBitmap(), mat);

Show The Desired/Specific Frequency

I've made an android apps about visualize spectrum frequency from recording sound. I'm using package from www.netlib.org/fftpack/jfftpack.tgz to perform FFT. We know that Each line of spectrum handle frequency from this formula : "((frequency_sample/2)/samples)". Its easy to see the first, second, and third spectrum that occurs. But, above fifth spectrum its hard to determine which spectrum it is.
I want to know the specific frequency (for example freq 200Hz) is occur or not and show it as toast or something like that. Is there any good source library I could refer to do this?
Thanks :)
package com.example.agita.stethoscopeandroid;
/**
* Created by Agita on 5/21/2015.
*/
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import ca.uol.aig.fftpack.RealDoubleFFT;
public class RekamActivity extends Activity implements OnClickListener {
Button startRecordingButton, stopRecordingButton;
TextView statusText;
File recordingFile;
boolean isRecording = false;
int frequency = 8000;
int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;
int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;
private RealDoubleFFT transformer;
int blockSize = 256;
RecordAudio recordTask;
ImageView imageView;
Bitmap bitmap;
Canvas canvas;
Paint paint;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rekam);
statusText = (TextView) this.findViewById(R.id.StatusTextView);
startRecordingButton = (Button) this .findViewById(R.id.StartRecordingButton);
stopRecordingButton = (Button) this .findViewById(R.id.StopRecordingButton);
startRecordingButton.setOnClickListener(this);
stopRecordingButton.setOnClickListener(this);
stopRecordingButton.setEnabled(false);
transformer = new RealDoubleFFT(blockSize);
imageView = (ImageView) this.findViewById(R.id.ImageView01);
bitmap = Bitmap.createBitmap(256, 100, Bitmap.Config.ARGB_8888);
canvas = new Canvas(bitmap);
paint = new Paint();
paint.setColor(Color.GREEN);
imageView.setImageBitmap(bitmap);
String recordedAudioFile = getRecoredAudioFile();
File path = new File(Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/Datarekaman/");
path.mkdirs();
try {
recordingFile = File.createTempFile("recording"+recordedAudioFile, ".wav", path);
} catch (IOException e) {
throw new RuntimeException("Couldn't create file on SD card", e);
}
}
private String getRecoredAudioFile() {
String returnAudio;
java.util.Date date= new java.util.Date();
returnAudio = new SimpleDateFormat("yyyyMMdd_HHmmss").format(date.getTime());
return returnAudio;
}
public void onClick(View v) {
if (v == startRecordingButton) {
record();
} else if (v == stopRecordingButton) {
stopRecording();
}
}
public void record() {
startRecordingButton.setEnabled(false);
stopRecordingButton.setEnabled(true);
recordTask = new RecordAudio();
recordTask.execute();
}
public void stopRecording() {
isRecording = false;
}
private class RecordAudio extends AsyncTask<Void, double[], Void> {
#Override
protected Void doInBackground(Void... params) {
isRecording = true;
try {
DataOutputStream dos = new DataOutputStream(
new BufferedOutputStream(new FileOutputStream(
recordingFile)));
int bufferSize = AudioRecord.getMinBufferSize(frequency,
channelConfiguration, audioEncoding);
AudioRecord audioRecord = new AudioRecord(
MediaRecorder.AudioSource.MIC, frequency,
channelConfiguration, audioEncoding, bufferSize);
short[] buffer = new short[blockSize];
double[] toTransform = new double[blockSize];
audioRecord.startRecording();
while (isRecording) {
int bufferReadResult = audioRecord.read(buffer, 0,
blockSize);
for (int i = 0; i < blockSize && i < bufferReadResult; i++) {
dos.writeShort(buffer[i]);
toTransform[i] = (double) buffer[i]/32768.0;
}
transformer.ft(toTransform);
publishProgress(toTransform);
}
audioRecord.stop();
dos.close();
} catch (Throwable t) {
Log.e("AudioRecord", "Recording Failed");
}
return null;
}
/*protected void onProgressUpdate(Integer... progress) {
statusText.setText(progress[0].toString());
}*/
protected void onProgressUpdate (double[]... toTransform) {
canvas.drawColor(Color.BLACK);
for (int i = 0; i < toTransform[0].length; i++) {
int x;
x = i;
int downy = (int) (100 - (toTransform[0][i] * 10));
int upy = 100;
//canvas.drawRect(x * 3, downy, x * 3 + 4, upy, paint);
canvas.drawLine(x, downy, x, upy, paint);
imageView.invalidate();
}
}
protected void onPostExecute(Void result) {
startRecordingButton.setEnabled(true);
stopRecordingButton.setEnabled(false);
}
}
}

After running an Eclipse SWT application it shows many exceptions

After running my SWT application it doesn’t have any error at the time of compilation.
But after running it will shows the output for few sec and then the eclipse instance will become not responsive.
Please help me to avoid exceptions
I try to increase heap size.anybody is here to help me.....plzzzzzzzzzzzzzzzzzzzz
here i will give my code. i think my logic also have a problem. but i dont know how to correct it. i just follow on book to do this.here it is a program for clock. and i did in each movement of second hand a new thread is created. i want to make it as one thread.
it shows unable to create new native threads
activator.java
package com.packtpub.e4.clock.ui;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tray;
import org.eclipse.swt.widgets.TrayItem;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle
*/
public class Activator extends AbstractUIPlugin {
// The plug-in ID
public static final String PLUGIN_ID = "com.packtpub.e4.clock.ui"; //$NON-NLS-1$
// The shared instance
private static Activator plugin;
private TrayItem trayItem;
private Image image;
private Shell shell;
/**
* The constructor
*/
public Activator() {
}
/*
* (non-Javadoc)
* #see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext context) throws Exception {
super.start(context);
plugin = this;
final Display display = Display.getDefault();
display.asyncExec(new Runnable() {
public void run() {
image = new Image(display, Activator.class.getResourceAsStream("/icons/sample.gif"));
Tray tray = display.getSystemTray();
if (tray != null && image != null) {
trayItem = new TrayItem(tray, SWT.NONE);
trayItem.setToolTipText("Hello World");
trayItem.setVisible(true);
trayItem.setText("Hello World");
trayItem.setImage(new Image(trayItem.getDisplay(),
Activator.class.getResourceAsStream("/icons/sample.gif")));
}
trayItem.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
if (shell == null) {
shell = new Shell(trayItem.getDisplay());
shell.setLayout(new FillLayout());
new ClockWidget(shell, SWT.NONE, new RGB(255, 0, 255));
shell.pack();
}
shell.open();
}
#Override
public void widgetDefaultSelected(SelectionEvent e) {
// TODO Auto-generated method stub
}
});
}
});
}
/*
* (non-Javadoc)
* #see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext context) throws Exception {
if (trayItem != null && !trayItem.isDisposed()) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
if (trayItem != null && !trayItem.isDisposed())
trayItem.dispose();
}
});
}
if (image != null && !image.isDisposed()) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
if (image != null && !image.isDisposed())
image.dispose();
}
});
}
if (shell != null && !shell.isDisposed()) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
if (shell != null && !shell.isDisposed())
shell.dispose();
}
});
}
}
/**
* Returns the shared instance
*
* #return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
/**
* Returns an image descriptor for the image file at the given
* plug-in relative path
*
* #param path the path
* #return the image descriptor
*/
public static ImageDescriptor getImageDescriptor(String path) {
return imageDescriptorFromPlugin(PLUGIN_ID, path);
}
}
clockwidget.java
package com.packtpub.e4.clock.ui;
import java.util.Date;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
public class ClockWidget extends Canvas
{
private final Color color;
private int offset;
public void setOffset(int offset)
{
this.offset = offset;
}
public Color getColor()
{
return color;
}
public int getOffset()
{
return offset;
}
public ClockWidget(Composite parent, int style,RGB rgb)
{
super(parent, style);
this.color = new Color(parent.getDisplay(),rgb);
addDisposeListener(new DisposeListener()
{
public void widgetDisposed(DisposeEvent e)
{
if(color != null && !color.isDisposed())
color.dispose();
}
});
addPaintListener(new PaintListener()
{
public void paintControl(PaintEvent e)
{
ClockWidget.this.paintControl(e);
}
});
}
public void paintControl(PaintEvent e)
{
#SuppressWarnings("deprecation")
int seconds = new Date().getSeconds();
int arc = (15-seconds) * 6 % 360;
e.gc.setBackground(color);
e.gc.fillArc(e.x,e.y,e.width-1,e.height-1,arc-1,2);
e.gc.drawArc(e.x,e.y,e.width-1,e.height-1,0,360);
e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK));
#SuppressWarnings("deprecation")
int hours = new Date().getHours() + offset;
arc = (3 - hours) * 30 % 360;
e.gc.fillArc(e.x, e.y, e.width-1, e.height-1, arc - 5, 10);
new Thread("TickTock")
{
public void run()
{
while (!ClockWidget.this.isDisposed())
{
ClockWidget.this.getDisplay().asyncExec(
new Runnable()
{
public void run()
{
if (!ClockWidget.this.isDisposed())
ClockWidget.this.redraw();
}
});
try
{
Thread.sleep(99999);
}
catch (InterruptedException e)
{
System.out.println("#clock"+e.toString());
return;
}
}
}
}.start();
}
public Point computeSize(int w,int h,boolean changed)
{
int size;
if(w == SWT.DEFAULT)
{
size = h;
}
else if (h == SWT.DEFAULT)
{
size = w;
}
else
{
size = Math.min(w,h);
}
if(size == SWT.DEFAULT)
size = 50;
return new Point(size,size);
}
}
SampleView.java
package com.packtpub.e4.clock.ui.views;
import java.util.TimeZone;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.*;
import org.eclipse.swt.SWT;
import com.packtpub.e4.clock.ui.ClockWidget;
public class SampleView extends ViewPart {
private Combo timezones;
public void createPartControl(Composite parent) {
try{
RowLayout layout = new RowLayout(SWT.HORIZONTAL);
parent.setLayout(layout);
Object[] oo=parent.getDisplay().getDeviceData().objects;
int c = 0;
for (int j = 0; j < oo.length; j++)
if (oo[j] instanceof Color)
c++;
System.err.println("There are " + c + " Color instances");
final ClockWidget clock1 =new ClockWidget(parent, SWT.NONE, new RGB(255,0,0));
//final ClockWidget clock2 =new ClockWidget(parent, SWT.NONE, new RGB(0,255,0));
//final ClockWidget clock3 =new ClockWidget(parent, SWT.NONE, new RGB(0,0,255));
//clock1.setLayoutData(new RowData(20,20));
//clock3.setLayoutData(new RowData(100,100));
String[] ids = TimeZone.getAvailableIDs();
timezones = new Combo(parent, SWT.SIMPLE);
timezones.setVisibleItemCount(5);
for (int i = 0; i < ids.length; i++) {
timezones.add(ids[i]);
timezones.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
String z = timezones.getText();
TimeZone tz = z == null ? null : TimeZone.getTimeZone(z);
TimeZone dt = TimeZone.getDefault();
int offset = tz == null ? 0 : (
tz.getOffset(System.currentTimeMillis()) -
dt.getOffset(System.currentTimeMillis())) / 3600000;
clock1.setOffset(offset);
clock1.redraw();
}
public void widgetDefaultSelected(SelectionEvent e) {
clock1.setOffset(0);
clock1.redraw();
}
});
}
}catch(Exception e){
System.out.println("# SampleView.java"+e.toString());
}
}
public void setFocus() {
timezones.setFocus();
}
}

i got the answer... here the thread call is happend in clockwidgets paintcontrol function cut it from there and paste it on clockwidget constructor.
then the code will work proper
package com.packtpub.e4.clock.ui;
import java.util.Date;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
public class ClockWidget extends Canvas
{
private final Color color;
private int offset;
public void setOffset(int offset)
{
this.offset = offset;
}
public Color getColor()
{
return color;
}
public int getOffset()
{
return offset;
}
public ClockWidget(Composite parent, int style,RGB rgb)
{
super(parent, style);
this.color = new Color(parent.getDisplay(),rgb);
addDisposeListener(new DisposeListener()
{
public void widgetDisposed(DisposeEvent e)
{
if(color != null && !color.isDisposed())
color.dispose();
}
});
new Thread("TickTock")
{
public void run()
{
while (!ClockWidget.this.isDisposed())
{
ClockWidget.this.getDisplay().asyncExec(
new Runnable()
{
public void run()
{
if (!ClockWidget.this.isDisposed())
ClockWidget.this.redraw();
}
});
try
{
Thread.sleep(1000);
}
catch (InterruptedException e)
{
return;
}
}
}
}.start();
addPaintListener(new PaintListener()
{
public void paintControl(PaintEvent e)
{
ClockWidget.this.paintControl(e);
}
});
}
public void paintControl(PaintEvent e)
{
#SuppressWarnings("deprecation")
int seconds = new Date().getSeconds();
int arc = (15-seconds) * 6 % 360;
e.gc.setBackground(color);
e.gc.fillArc(e.x,e.y,e.width-1,e.height-1,arc-1,2);
e.gc.drawArc(e.x,e.y,e.width-1,e.height-1,0,360);
e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK));
#SuppressWarnings("deprecation")
int hours = new Date().getHours() + offset;
arc = (3 - hours) * 30 % 360;
e.gc.fillArc(e.x, e.y, e.width-1, e.height-1, arc - 5, 10);
}
public Point computeSize(int w,int h,boolean changed)
{
int size;
if(w == SWT.DEFAULT)
{
size = h;
}
else if (h == SWT.DEFAULT)
{
size = w;
}
else
{
size = Math.min(w,h);
}
if(size == SWT.DEFAULT)
size = 50;
return new Point(size,size);
}
}

How to take picture with ip camera using android

Hi i have created and android application using an ipcamera,for that i have used mjpeg class
Main class
package com.example.mjpeg;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.view.WindowManager;
import com.example.mjpeg.MjpegInputStream;
import com.example.mjpeg.MjpegView;
public class MainActivity extends Activity {
private MjpegView mv;
private static final int MENU_QUIT = 1;
/* Creates the menu items */
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_QUIT, 0, "Quit");
return true;
}
/* Handles item selections */
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_QUIT:
finish();
return true;
}
return false;
}
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//sample public cam
String URL = "http://192.168.2.1/?action=appletvstream";
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN, WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
mv = new MjpegView(this);
setContentView(mv);
mv.setSource(MjpegInputStream.read(URL));
mv.setDisplayMode(MjpegView.SIZE_BEST_FIT);
mv.showFps(false);
}
public void onPause() {
super.onPause();
mv.stopPlayback();
}
}
MjpegInputstream class
package com.example.mjpeg;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.Properties;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
public class MjpegInputStream extends DataInputStream {
private final byte[] SOI_MARKER = { (byte) 0xFF, (byte) 0xD8 };
private final byte[] EOF_MARKER = { (byte) 0xFF, (byte) 0xD9 };
private final String CONTENT_LENGTH = "Content-Length";
private final static int HEADER_MAX_LENGTH = 100;
private final static int FRAME_MAX_LENGTH = 40000 + HEADER_MAX_LENGTH;
private int mContentLength = -1;
public static MjpegInputStream read(String url) {
HttpResponse res;
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
res = httpclient.execute(new HttpGet(URI.create(url)));
return new MjpegInputStream(res.getEntity().getContent());
} catch (ClientProtocolException e) {
} catch (IOException e) {}
return null;
}
public MjpegInputStream(InputStream in) { super(new BufferedInputStream(in, FRAME_MAX_LENGTH)); }
private int getEndOfSeqeunce(DataInputStream in, byte[] sequence) throws IOException {
int seqIndex = 0;
byte c;
for(int i=0; i < FRAME_MAX_LENGTH; i++) {
c = (byte) in.readUnsignedByte();
if(c == sequence[seqIndex]) {
seqIndex++;
if(seqIndex == sequence.length) return i + 1;
} else seqIndex = 0;
}
return -1;
}
private int getStartOfSequence(DataInputStream in, byte[] sequence) throws IOException {
int end = getEndOfSeqeunce(in, sequence);
return (end < 0) ? (-1) : (end - sequence.length);
}
private int parseContentLength(byte[] headerBytes) throws IOException, NumberFormatException {
ByteArrayInputStream headerIn = new ByteArrayInputStream(headerBytes);
Properties props = new Properties();
props.load(headerIn);
return Integer.parseInt(props.getProperty(CONTENT_LENGTH));
}
public Bitmap readMjpegFrame() throws IOException {
mark(FRAME_MAX_LENGTH);
int headerLen = getStartOfSequence(this, SOI_MARKER);
reset();
byte[] header = new byte[headerLen];
readFully(header);
try {
mContentLength = parseContentLength(header);
} catch (NumberFormatException nfe) {
mContentLength = getEndOfSeqeunce(this, EOF_MARKER);
}
reset();
byte[] frameData = new byte[mContentLength];
skipBytes(headerLen);
readFully(frameData);
return BitmapFactory.decodeStream(new ByteArrayInputStream(frameData));
}
}
Mjpeg View
package com.example.mjpeg;
import java.io.IOException;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class MjpegView extends SurfaceView implements SurfaceHolder.Callback {
public final static int POSITION_UPPER_LEFT = 9;
public final static int POSITION_UPPER_RIGHT = 3;
public final static int POSITION_LOWER_LEFT = 12;
public final static int POSITION_LOWER_RIGHT = 6;
public final static int SIZE_STANDARD = 1;
public final static int SIZE_BEST_FIT = 4;
public final static int SIZE_FULLSCREEN = 8;
private MjpegViewThread thread;
private MjpegInputStream mIn = null;
private boolean showFps = false;
private boolean mRun = false;
private boolean surfaceDone = false;
private Paint overlayPaint;
private int overlayTextColor;
private int overlayBackgroundColor;
private int ovlPos;
private int dispWidth;
private int dispHeight;
private int displayMode;
public class MjpegViewThread extends Thread {
private SurfaceHolder mSurfaceHolder;
private int frameCounter = 0;
private long start;
private Bitmap ovl;
public MjpegViewThread(SurfaceHolder surfaceHolder, Context context) { mSurfaceHolder = surfaceHolder; }
private Rect destRect(int bmw, int bmh) {
int tempx;
int tempy;
if (displayMode == MjpegView.SIZE_STANDARD) {
tempx = (dispWidth / 2) - (bmw / 2);
tempy = (dispHeight / 2) - (bmh / 2);
return new Rect(tempx, tempy, bmw + tempx, bmh + tempy);
}
if (displayMode == MjpegView.SIZE_BEST_FIT) {
float bmasp = (float) bmw / (float) bmh;
bmw = dispWidth;
bmh = (int) (dispWidth / bmasp);
if (bmh > dispHeight) {
bmh = dispHeight;
bmw = (int) (dispHeight * bmasp);
}
tempx = (dispWidth / 2) - (bmw / 2);
tempy = (dispHeight / 2) - (bmh / 2);
return new Rect(tempx, tempy, bmw + tempx, bmh + tempy);
}
if (displayMode == MjpegView.SIZE_FULLSCREEN) return new Rect(0, 0, dispWidth, dispHeight);
return null;
}
public void setSurfaceSize(int width, int height) {
synchronized(mSurfaceHolder) {
dispWidth = width;
dispHeight = height;
}
}
private Bitmap makeFpsOverlay(Paint p, String text) {
Rect b = new Rect();
p.getTextBounds(text, 0, text.length(), b);
int bwidth = b.width()+2;
int bheight = b.height()+2;
Bitmap bm = Bitmap.createBitmap(bwidth, bheight, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(bm);
p.setColor(overlayBackgroundColor);
c.drawRect(0, 0, bwidth, bheight, p);
p.setColor(overlayTextColor);
c.drawText(text, -b.left+1, (bheight/2)-((p.ascent()+p.descent())/2)+1, p);
return bm;
}
public void run() {
start = System.currentTimeMillis();
PorterDuffXfermode mode = new PorterDuffXfermode(PorterDuff.Mode.DST_OVER);
Bitmap bm;
int width;
int height;
Rect destRect;
Canvas c = null;
Paint p = new Paint();
String fps = "";
while (mRun) {
if(surfaceDone) {
try {
c = mSurfaceHolder.lockCanvas();
synchronized (mSurfaceHolder) {
try {
bm = mIn.readMjpegFrame();
destRect = destRect(bm.getWidth(),bm.getHeight());
c.drawColor(Color.BLACK);
c.drawBitmap(bm, null, destRect, p);
if(showFps) {
p.setXfermode(mode);
if(ovl != null) {
height = ((ovlPos & 1) == 1) ? destRect.top : destRect.bottom-ovl.getHeight();
width = ((ovlPos & 8) == 8) ? destRect.left : destRect.right -ovl.getWidth();
c.drawBitmap(ovl, width, height, null);
}
p.setXfermode(null);
frameCounter++;
if((System.currentTimeMillis() - start) >= 1000) {
fps = String.valueOf(frameCounter)+"fps";
frameCounter = 0;
start = System.currentTimeMillis();
ovl = makeFpsOverlay(overlayPaint, fps);
}
}
} catch (IOException e) {}
}
} finally { if (c != null) mSurfaceHolder.unlockCanvasAndPost(c); }
}
}
}
}
private void init(Context context) {
SurfaceHolder holder = getHolder();
holder.addCallback(this);
thread = new MjpegViewThread(holder, context);
setFocusable(true);
overlayPaint = new Paint();
overlayPaint.setTextAlign(Paint.Align.LEFT);
overlayPaint.setTextSize(12);
overlayPaint.setTypeface(Typeface.DEFAULT);
overlayTextColor = Color.WHITE;
overlayBackgroundColor = Color.BLACK;
ovlPos = MjpegView.POSITION_LOWER_RIGHT;
displayMode = MjpegView.SIZE_STANDARD;
dispWidth = getWidth();
dispHeight = getHeight();
}
public void startPlayback() {
if(mIn != null) {
mRun = true;
thread.start();
}
}
public void stopPlayback() {
mRun = false;
boolean retry = true;
while(retry) {
try {
thread.join();
retry = false;
} catch (InterruptedException e) {}
}
}
public MjpegView(Context context, AttributeSet attrs) { super(context, attrs); init(context); }
public void surfaceChanged(SurfaceHolder holder, int f, int w, int h) { thread.setSurfaceSize(w, h); }
public void surfaceDestroyed(SurfaceHolder holder) {
surfaceDone = false;
stopPlayback();
}
public MjpegView(Context context) {
super(context);
init(context);
}
public void surfaceCreated(SurfaceHolder holder) {
surfaceDone = true;
}
public void showFps(boolean b) {
showFps = b;
}
public void setSource(MjpegInputStream source) {
mIn = source;
startPlayback();
}
public void setOverlayPaint(Paint p) {
overlayPaint = p;
}
public void setOverlayTextColor(int c) {
overlayTextColor = c;
}
public void setOverlayBackgroundColor(int c) {
overlayBackgroundColor = c;
}
public void setOverlayPosition(int p) {
ovlPos = p;
}
public void setDisplayMode(int s) {
displayMode = s;
}
}
i got this code from a blog,now i want to take a picture when i click on a button and save it in sd card,can anyone help me please
currently i can only view the video from the ipcam,i need to add a button in this class and when i click on the button it should capture a image and save it in sdcard.

You have a public Bitmap readMjpegFrame() method right there in MjpegInputStream.
Take the bitmap from that method and save it on SD card after you click on the button.

Printing in Java to Label Printer

I am having trouble printing to a label printer. The code below prints 4 "labels" on one (Picture of Label Attached).
The code below prints to a brother QL-500 label printer. It prints onto 3.5" by 1.1" labels.
It would also be great if someone could help me better understand the code.
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
import javax.print.PrintService;
public class DYMOLabelPrintConnector implements Printable {
public static final String PRINTERNAME = "DYMO LabelWriter 400";
public static final boolean PRINTMENU = false;
public static void main(String[] args) {
PrinterJob printerJob = PrinterJob.getPrinterJob();
PageFormat pageFormat = printerJob.defaultPage();
Paper paper = new Paper();
final double widthPaper = (1.2 * 72);
final double heightPaper = (1.5 * 72);
paper.setSize(widthPaper, heightPaper);
paper.setImageableArea(0, 0, widthPaper, heightPaper);
pageFormat.setPaper(paper);
pageFormat.setOrientation(PageFormat.LANDSCAPE);
if (PRINTMENU) {
if (printerJob.printDialog()) {
printerJob.setPrintable(new DYMOLabelPrintConnector(), pageFormat);
try {
printerJob.print();
} catch (PrinterException e) {
e.printStackTrace();
}
}
} else {
PrintService[] printService = PrinterJob.lookupPrintServices();
for (int i = 0; i < printService.length; i++) {
System.out.println(printService[i].getName());
if (printService[i].getName().compareTo(PRINTERNAME) == 0) {
try {
printerJob.setPrintService(printService[i]);
printerJob.setPrintable(new DYMOLabelPrintConnector(), pageFormat);
printerJob.print();
} catch (PrinterException e) {
e.printStackTrace();
}
}
}
}
System.exit(0);
}
public String getValue(final int elementOnLabel, final int labelCounter) {
String value = "";
switch (elementOnLabel) {
case 0:
// what ever you want to have in this line
value = "SetupX";
break;
case 1:
// what ever you want to have in this line
value = "fiehnlab.ucd";
break;
case 2:
// what ever you want to have in this line
value = "id: " + labelCounter;
break;
case 3:
// what ever you want to have in this line
// TODO - add DB connection
value = "label:" + elementOnLabel;
break;
case 4:
// what ever you want to have in this line
value = DateFormat.getDateInstance(DateFormat.SHORT, Locale.US).format(new Date());
break;
default:
break;
}
return value;
}
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {
System.out.println("printing page: " + pageIndex);
if (pageIndex < getPageNumbers()) {
Graphics2D g = (Graphics2D) graphics;
// g.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
g.translate(20, 10);
String value = "";
pageIndex = pageIndex + 1;
// specific for four circular labels per page
for (int x = 0; x < 80; x = x + 50) {
for (int y = 0; y < 80; y = y + 36) {
int posOnPage = 4; // BottomRight, TopRight, BottomLeft, TopLeft
if (x > 0) {
posOnPage = posOnPage - 2;
}
if (y > 0) {
posOnPage = posOnPage - 1;
}
// current counter for the label.
int id = (posOnPage - 1) + ((pageIndex - 1) * 4);
// setupx
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 3));
value = this.getValue(0, id);
g.drawString(" " + value, x, y);
// fiehnlab
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 3));
value = this.getValue(1, id);
g.drawString(" " + value, x, y + 4);
// ID
g.setFont(new Font(g.getFont().getFontName(), Font.BOLD, 7));
value = this.getValue(2, id);
g.drawString("" + value, x, y + 10);
// label
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 5));
value = this.getValue(3, id);
g.drawString(" " + value, x, y + 16);
// date
g.setFont(new Font(g.getFont().getFontName(), Font.PLAIN, 3));
value = this.getValue(4, id);
g.drawString(" " + value, x, y + 20);
}
}
return PAGE_EXISTS;
} else {
return NO_SUCH_PAGE;
}
}
public int getPageNumbers() {
return 5;
}
}
enter code here
Here is What it Prints:

Wow, I can't tell you how much I love printing in Java, when it works, it's great...
.
public class PrinterTest {
public static void main(String[] args) {
PrinterJob pj = PrinterJob.getPrinterJob();
if (pj.printDialog()) {
PageFormat pf = pj.defaultPage();
Paper paper = pf.getPaper();
double width = fromCMToPPI(3.5);
double height = fromCMToPPI(8.8);
paper.setSize(width, height);
paper.setImageableArea(
fromCMToPPI(0.25),
fromCMToPPI(0.5),
width - fromCMToPPI(0.35),
height - fromCMToPPI(1));
System.out.println("Before- " + dump(paper));
pf.setOrientation(PageFormat.PORTRAIT);
pf.setPaper(paper);
System.out.println("After- " + dump(paper));
System.out.println("After- " + dump(pf));
dump(pf);
PageFormat validatePage = pj.validatePage(pf);
System.out.println("Valid- " + dump(validatePage));
//Book book = new Book();
//book.append(new MyPrintable(), pf);
//pj.setPageable(book);
pj.setPrintable(new MyPrintable(), pf);
try {
pj.print();
} catch (PrinterException ex) {
ex.printStackTrace();
}
}
}
protected static double fromCMToPPI(double cm) {
return toPPI(cm * 0.393700787);
}
protected static double toPPI(double inch) {
return inch * 72d;
}
protected static String dump(Paper paper) {
StringBuilder sb = new StringBuilder(64);
sb.append(paper.getWidth()).append("x").append(paper.getHeight())
.append("/").append(paper.getImageableX()).append("x").
append(paper.getImageableY()).append(" - ").append(paper
.getImageableWidth()).append("x").append(paper.getImageableHeight());
return sb.toString();
}
protected static String dump(PageFormat pf) {
Paper paper = pf.getPaper();
return dump(paper);
}
public static class MyPrintable implements Printable {
#Override
public int print(Graphics graphics, PageFormat pageFormat,
int pageIndex) throws PrinterException {
System.out.println(pageIndex);
int result = NO_SUCH_PAGE;
if (pageIndex < 2) {
Graphics2D g2d = (Graphics2D) graphics;
System.out.println("[Print] " + dump(pageFormat));
double width = pageFormat.getImageableWidth();
double height = pageFormat.getImageableHeight();
g2d.translate((int) pageFormat.getImageableX(),
(int) pageFormat.getImageableY());
g2d.draw(new Rectangle2D.Double(1, 1, width - 1, height - 1));
FontMetrics fm = g2d.getFontMetrics();
g2d.drawString("0x0", 0, fm.getAscent());
result = PAGE_EXISTS;
}
return result;
}
}
}
I'm aware of a number of inconsistencies with the PrintDialog doing werid and wonderful things if you try and specify Paper sizes and margins, but honestly, that's a question for another day.
The code I've posted was capable for printing two labels one after the other without issue on my Dymo LabelWriter 400 Turbo
UPDATED
Should also mention, I think you were basically missing PageFormat.setPaper
UPDATED with Barbaque BarCode
Print from file example...
Barcode b = BarcodeFactory.createCode128("Hello");
b.setResolution(72);
File f = new File("mybarcode.png");
// Let the barcode image handler do the hard work
BarcodeImageHandler.savePNG(b, f);
.
.
.
public static class PrintFromFile implements Printable {
#Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
int result = NO_SUCH_PAGE;
if (pageIndex == 0) {
graphics.translate((int)pageFormat.getImageableX(), (int)pageFormat.getImageableY());
result = PAGE_EXISTS;
try {
// You may want to rescale the image to better fit the label??
BufferedImage read = ImageIO.read(new File("mybarcode.png"));
graphics.drawImage(read, 0, 0, null);
} catch (IOException ex) {
ex.printStackTrace();
}
}
return result;
}
}
Printing direct to the Graphics context
Barcode b = BarcodeFactory.createCode128("Hello");
b.setResolution(72);
.
.
.
public static class PrintToGraphics implements Printable {
private Barcode b;
private PrintToGraphics(Barcode b) {
this.b = b;
}
#Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
int result = NO_SUCH_PAGE;
if (pageIndex == 0) {
result = PAGE_EXISTS;
int x = (int)pageFormat.getImageableX();
int y = (int)pageFormat.getImageableY();
int width = (int)pageFormat.getImageableWidth();
int height = (int)pageFormat.getImageableHeight();
graphics.translate(x, y);
try {
b.draw((Graphics2D)graphics, 0, 0);
} catch (OutputException ex) {
ex.printStackTrace();
}
}
return result;
}
}
Last but not least, directly from the "examples" directory of the download
public class PrintingExample
{
public static void main(String[] args)
{
try
{
Barcode b = BarcodeFactory.createCode128("Hello");
PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintable(b);
if (job.printDialog())
{
job.print();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

#After a long hour of analysis found 100% solution
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.math.BigInteger;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.util.Units;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDocument1;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPageMar;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPageSz;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSectPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STPageOrientation;
public class CreateWord {
public static void main(String[] args) throws FileNotFoundException, IOException {
XWPFDocument doc = new XWPFDocument();
CTDocument1 document = doc.getDocument();
CTBody body = document.getBody();
if (!body.isSetSectPr()) {
body.addNewSectPr();
}
CTSectPr section = body.getSectPr();
if (!section.isSetPgSz()) {
section.addNewPgSz();
}
if (!section.isSetPgMar()) {
CTPageMar margin = section.addNewPgMar();
margin.setTop(BigInteger.valueOf(500));
margin.setBottom(BigInteger.valueOf(100));
margin.setLeft(BigInteger.valueOf(0));
margin.setRight(BigInteger.valueOf(0));
}
CTPageSz pageSize = section.getPgSz();
pageSize.setOrient(STPageOrientation.LANDSCAPE);
pageSize.setW(BigInteger.valueOf(6000));
pageSize.setH(BigInteger.valueOf(2000));
XWPFParagraph title = doc.createParagraph();
XWPFRun run = title.createRun();
// run.setText("Fig.1 A Natural Scene");
// run.setBold(true);
// title.setAlignment(ParagraphAlignment.CENTER);
String imgFile = "E:\\barcode.png";
FileInputStream is = new FileInputStream(imgFile);
// run.addBreak();
try {
run.addPicture(is, XWPFDocument.PICTURE_TYPE_JPEG, imgFile, Units.toEMU(300), Units.toEMU(70));
} catch (InvalidFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} // 200x200
// pixels
is.close();
FileOutputStream fos = new FileOutputStream("E:\\test4.docx");
doc.write(fos);
fos.close();
}
}
[1]: https://i.stack.imgur.com/VA0IL.png
[2]: https://i.stack.imgur.com/9aSv4.png

I have a similar code, but can't make the Toshiba portable printer print in TPCL mode, my code works fine but only when the printer is in ESC/POS mode. My printer is Toshiba B-EP4-DL
This is my MainActivity:
package com.example.warehousev3;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import com.mazenrashed.printooth.Printooth;
import com.mazenrashed.printooth.data.printable.Printable;
import com.mazenrashed.printooth.data.printable.RawPrintable;
import com.mazenrashed.printooth.data.printable.TextPrintable;
import com.mazenrashed.printooth.data.printer.DefaultPrinter;
import com.mazenrashed.printooth.ui.ScanningActivity;
import com.mazenrashed.printooth.utilities.Printing;
import com.mazenrashed.printooth.utilities.PrintingCallback;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity implements PrintingCallback {
DatabaseHelper myDb;
Button btnPrint, btn_unpair_pair;
EditText barcodefield = null;
Printing printing;
private Calendar calendar;
private SimpleDateFormat dateFormat;
private String date;
private final static char ESC_CHAR = 0x1B; // to be used on esc/pos commands
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calendar = Calendar.getInstance();
dateFormat = new SimpleDateFormat("dd/MM/yyyy");
date = dateFormat.format(calendar.getTime());
myDb = new DatabaseHelper(this);
btnPrint = findViewById(R.id.cmd_print);
barcodefield = findViewById(R.id.txt_barcode);
btn_unpair_pair = findViewById(R.id.btnPiarUnpair);
btnPrint.setVisibility(View.GONE); //Set Print Button Invisible
viewAll();
}
public void viewAll() {
if (printing != null)
printing.setPrintingCallback(this);
btn_unpair_pair.setOnClickListener(view -> {
if (Printooth.INSTANCE.hasPairedPrinter())
Printooth.INSTANCE.removeCurrentPrinter();
else {
startActivityForResult(new Intent(MainActivity.this, ScanningActivity.class), ScanningActivity.SCANNING_FOR_PRINTER);
changePairAndUpair();
}
});
/* //Print Button function
btnPrint.setOnClickListener(view -> {
if (!Printooth.INSTANCE.hasPairedPrinter())
startActivityForResult(new Intent(MainActivity.this,
ScanningActivity.class), ScanningActivity.SCANNING_FOR_PRINTER);
else
printText();
barcodefield.setText("");
});
*/
barcodefield.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
for (int i = 0; i < s.length(); i++) {
if(barcodefield.getText().toString().length() == 13) {
if (!Printooth.INSTANCE.hasPairedPrinter())
startActivityForResult(new Intent(MainActivity.this, ScanningActivity.class), ScanningActivity.SCANNING_FOR_PRINTER);
else
printText();
barcodefield.setText("");
}
}
}
});
changePairAndUpair();
}
private void changePairAndUpair() {
if (Printooth.INSTANCE.hasPairedPrinter())
btn_unpair_pair.setText(new StringBuilder("Unpair
").append(Printooth.INSTANCE.getPairedPrinter().getName()).toString());
else
btn_unpair_pair.setText("Pair with Printer");
}
#Override
public void connectingWithPrinter() {
Toast.makeText(this, "Connectiong to printer", Toast.LENGTH_SHORT).show();
}
#Override
public void connectionFailed(String s) {
Toast.makeText(this, "Failed: "+s, Toast.LENGTH_SHORT).show();
}
#Override
public void onError(String s) {
Toast.makeText(this, "Error: "+s, Toast.LENGTH_SHORT).show();
}
#Override
public void onMessage(String s) {
Toast.makeText(this, s, Toast.LENGTH_SHORT).show();
}
#Override
public void printingOrderSentSuccessfully() {
Toast.makeText(this, "Order sent to printer", Toast.LENGTH_SHORT).show();
}
private void printText() {
ArrayList<Printable> printables = new ArrayList<>();
printables.add(new RawPrintable.Builder(new byte[]{27, 100, 4}).build());
//Original Code
//printables.add(new RawPrintable.Builder(new byte[]{0x1B,'d', 5}).build()); //
FEED 5 LINES WORKING!!!!!!!!
//printables.add(new RawPrintable.Builder(new byte[]{'L','H', 0x56}).build()); //
FEED 10 LINES WORKING!!!!!!!!
//printables.add(new RawPrintable.Builder(new byte[]{}).build()); // lane for
test
myDb.setBarcodcheck(String.valueOf(barcodefield.getText()));
Cursor res = myDb.getAllData();
if (res.getCount() == 0) {
showMessage("Error", "Nothing Found");
return;
}
StringBuffer buffer = new StringBuffer();
while (res.moveToNext()) {
buffer.append(res.getString(0)+"\n");
buffer.append(res.getString(1)+"\n");
buffer.append(res.getString(2)+"\n");
buffer.append(date+"\n");
buffer.append("\n");
}
printables.add(new TextPrintable.Builder()
.setText(buffer.toString()) // Original code
//.setText(String.valueOf(buffer))
.setCharacterCode(DefaultPrinter.Companion.getCHARCODE_PC1252())
.setLineSpacing(DefaultPrinter.Companion.getLINE_SPACING_60())
.setEmphasizedMode(DefaultPrinter.Companion.getEMPHASIZED_MODE_BOLD())
.setFontSize(DefaultPrinter.Companion.getFONT_SIZE_LARGE())
//.setNewLinesAfter(1)
.build());
//printables.add(new RawPrintable.Builder(new byte[]{0x1B,'d', 5}).build()); // FEED 5 LINES WORKING!!!!!!!!
//printables.add(new RawPrintable.Builder(new byte[]{}).build()); // Line for test
Printooth.INSTANCE.printer().print(printables);
}
public void showMessage(String title, String Message) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setCancelable(true);
builder.setTitle(title);
builder.setMessage(Message);
builder.show();
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent
data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == ScanningActivity.SCANNING_FOR_PRINTER && resultCode ==
Activity.RESULT_OK)
initPrinting();
changePairAndUpair();
}
private void initPrinting() {
if (!Printooth.INSTANCE.hasPairedPrinter())
printing = Printooth.INSTANCE.printer();
if (printing != null)
printing.setPrintingCallback(this);
}
}