--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tz/signaturecapture/CaptureSignature.java Fri Jan 10 12:24:07 2014 +0100
@@ -0,0 +1,352 @@
+package tz.signaturecapture;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.util.Calendar;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.ContextWrapper;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.RectF;
+import android.os.Bundle;
+import android.os.Environment;
+import android.provider.MediaStore.Images;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup.LayoutParams;
+import android.view.Window;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+
+public class CaptureSignature extends Activity {
+
+ LinearLayout mContent;
+ signature mSignature;
+ Button mClear, mGetSign, mCancel;
+ public static String tempDir;
+ public int count = 1;
+ public String current = null;
+ private Bitmap mBitmap;
+ View mView;
+ File mypath;
+
+ private String uniqueId;
+ private EditText yourName;
+
+ @Override
+ public void onCreate(Bundle savedInstanceState)
+ {
+ super.onCreate(savedInstanceState);
+ this.requestWindowFeature(Window.FEATURE_NO_TITLE);
+ setContentView(R.layout.signature);
+
+ tempDir = Environment.getExternalStorageDirectory() + "/" + getResources().getString(R.string.external_dir) + "/";
+ ContextWrapper cw = new ContextWrapper(getApplicationContext());
+ File directory = cw.getDir(getResources().getString(R.string.external_dir), Context.MODE_PRIVATE);
+
+ prepareDirectory();
+ uniqueId = getTodaysDate() + "_" + getCurrentTime() + "_" + Math.random();
+ current = uniqueId + ".png";
+ mypath= new File(directory,current);
+
+
+ mContent = (LinearLayout) findViewById(R.id.linearLayout);
+ mSignature = new signature(this, null);
+ mSignature.setBackgroundColor(Color.WHITE);
+ mContent.addView(mSignature, LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
+ mClear = (Button)findViewById(R.id.clear);
+ mGetSign = (Button)findViewById(R.id.getsign);
+ mGetSign.setEnabled(false);
+ mCancel = (Button)findViewById(R.id.cancel);
+ mView = mContent;
+
+ yourName = (EditText) findViewById(R.id.yourName);
+
+ mClear.setOnClickListener(new OnClickListener()
+ {
+ public void onClick(View v)
+ {
+ Log.v("log_tag", "Panel Cleared");
+ mSignature.clear();
+ mGetSign.setEnabled(false);
+ }
+ });
+
+ mGetSign.setOnClickListener(new OnClickListener()
+ {
+ public void onClick(View v)
+ {
+ Log.v("log_tag", "Panel Saved");
+ boolean error = captureSignature();
+ if(!error){
+ mView.setDrawingCacheEnabled(true);
+ mSignature.save(mView);
+ Bundle b = new Bundle();
+ b.putString("status", "done");
+ Intent intent = new Intent();
+ intent.putExtras(b);
+ setResult(RESULT_OK,intent);
+ finish();
+ }
+ }
+ });
+
+ mCancel.setOnClickListener(new OnClickListener()
+ {
+ public void onClick(View v)
+ {
+ Log.v("log_tag", "Panel Canceled");
+ Bundle b = new Bundle();
+ b.putString("status", "cancel");
+ Intent intent = new Intent();
+ intent.putExtras(b);
+ setResult(RESULT_OK,intent);
+ finish();
+ }
+ });
+
+ }
+
+ @Override
+ protected void onDestroy() {
+ Log.w("GetSignature", "onDestory");
+ super.onDestroy();
+ }
+
+ private boolean captureSignature() {
+
+ boolean error = false;
+ String errorMessage = "";
+
+
+ if(yourName.getText().toString().equalsIgnoreCase("")){
+ errorMessage = errorMessage + "Please enter your Name\n";
+ error = true;
+ }
+
+ if(error){
+ Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
+ toast.setGravity(Gravity.TOP, 105, 50);
+ toast.show();
+ }
+
+ return error;
+ }
+
+ private String getTodaysDate() {
+
+ final Calendar c = Calendar.getInstance();
+ int todaysDate = (c.get(Calendar.YEAR) * 10000) +
+ ((c.get(Calendar.MONTH) + 1) * 100) +
+ (c.get(Calendar.DAY_OF_MONTH));
+ Log.w("DATE:",String.valueOf(todaysDate));
+ return(String.valueOf(todaysDate));
+
+ }
+
+ private String getCurrentTime() {
+
+ final Calendar c = Calendar.getInstance();
+ int currentTime = (c.get(Calendar.HOUR_OF_DAY) * 10000) +
+ (c.get(Calendar.MINUTE) * 100) +
+ (c.get(Calendar.SECOND));
+ Log.w("TIME:",String.valueOf(currentTime));
+ return(String.valueOf(currentTime));
+
+ }
+
+
+ private boolean prepareDirectory()
+ {
+ try
+ {
+ if (makedirs())
+ {
+ return true;
+ } else {
+ return false;
+ }
+ } catch (Exception e)
+ {
+ e.printStackTrace();
+ Toast.makeText(this, "Could not initiate File System.. Is Sdcard mounted properly?", 1000).show();
+ return false;
+ }
+ }
+
+ private boolean makedirs()
+ {
+ File tempdir = new File(tempDir);
+ if (!tempdir.exists())
+ tempdir.mkdirs();
+
+ if (tempdir.isDirectory())
+ {
+ File[] files = tempdir.listFiles();
+ for (File file : files)
+ {
+ if (!file.delete())
+ {
+ System.out.println("Failed to delete " + file);
+ }
+ }
+ }
+ return (tempdir.isDirectory());
+ }
+
+ public class signature extends View
+ {
+ private static final float STROKE_WIDTH = 5f;
+ private static final float HALF_STROKE_WIDTH = STROKE_WIDTH / 2;
+ private Paint paint = new Paint();
+ private Path path = new Path();
+
+ private float lastTouchX;
+ private float lastTouchY;
+ private final RectF dirtyRect = new RectF();
+
+ public signature(Context context, AttributeSet attrs)
+ {
+ super(context, attrs);
+ paint.setAntiAlias(true);
+ paint.setColor(Color.BLACK);
+ paint.setStyle(Paint.Style.STROKE);
+ paint.setStrokeJoin(Paint.Join.ROUND);
+ paint.setStrokeWidth(STROKE_WIDTH);
+ }
+
+ public void save(View v)
+ {
+ Log.v("log_tag", "Width: " + v.getWidth());
+ Log.v("log_tag", "Height: " + v.getHeight());
+ if(mBitmap == null)
+ {
+ mBitmap = Bitmap.createBitmap (mContent.getWidth(), mContent.getHeight(), Bitmap.Config.RGB_565);;
+ }
+ Canvas canvas = new Canvas(mBitmap);
+ try
+ {
+ FileOutputStream mFileOutStream = new FileOutputStream(mypath);
+
+ v.draw(canvas);
+ mBitmap.compress(Bitmap.CompressFormat.PNG, 90, mFileOutStream);
+ mFileOutStream.flush();
+ mFileOutStream.close();
+ String url = Images.Media.insertImage(getContentResolver(), mBitmap, "title", null);
+ Log.v("log_tag","url: " + url);
+ //In case you want to delete the file
+ //boolean deleted = mypath.delete();
+ //Log.v("log_tag","deleted: " + mypath.toString() + deleted);
+ //If you want to convert the image to string use base64 converter
+
+ }
+ catch(Exception e)
+ {
+ Log.v("log_tag", e.toString());
+ }
+ }
+
+ public void clear()
+ {
+ path.reset();
+ invalidate();
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas)
+ {
+ canvas.drawPath(path, paint);
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event)
+ {
+ float eventX = event.getX();
+ float eventY = event.getY();
+ mGetSign.setEnabled(true);
+
+ switch (event.getAction())
+ {
+ case MotionEvent.ACTION_DOWN:
+ path.moveTo(eventX, eventY);
+ lastTouchX = eventX;
+ lastTouchY = eventY;
+ return true;
+
+ case MotionEvent.ACTION_MOVE:
+
+ case MotionEvent.ACTION_UP:
+
+ resetDirtyRect(eventX, eventY);
+ int historySize = event.getHistorySize();
+ for (int i = 0; i < historySize; i++)
+ {
+ float historicalX = event.getHistoricalX(i);
+ float historicalY = event.getHistoricalY(i);
+ expandDirtyRect(historicalX, historicalY);
+ path.lineTo(historicalX, historicalY);
+ }
+ path.lineTo(eventX, eventY);
+ break;
+
+ default:
+ debug("Ignored touch event: " + event.toString());
+ return false;
+ }
+
+ invalidate((int) (dirtyRect.left - HALF_STROKE_WIDTH),
+ (int) (dirtyRect.top - HALF_STROKE_WIDTH),
+ (int) (dirtyRect.right + HALF_STROKE_WIDTH),
+ (int) (dirtyRect.bottom + HALF_STROKE_WIDTH));
+
+ lastTouchX = eventX;
+ lastTouchY = eventY;
+
+ return true;
+ }
+
+ private void debug(String string){
+ }
+
+ private void expandDirtyRect(float historicalX, float historicalY)
+ {
+ if (historicalX < dirtyRect.left)
+ {
+ dirtyRect.left = historicalX;
+ }
+ else if (historicalX > dirtyRect.right)
+ {
+ dirtyRect.right = historicalX;
+ }
+
+ if (historicalY < dirtyRect.top)
+ {
+ dirtyRect.top = historicalY;
+ }
+ else if (historicalY > dirtyRect.bottom)
+ {
+ dirtyRect.bottom = historicalY;
+ }
+ }
+
+ private void resetDirtyRect(float eventX, float eventY)
+ {
+ dirtyRect.left = Math.min(lastTouchX, eventX);
+ dirtyRect.right = Math.max(lastTouchX, eventX);
+ dirtyRect.top = Math.min(lastTouchY, eventY);
+ dirtyRect.bottom = Math.max(lastTouchY, eventY);
+ }
+ }
+}
\ No newline at end of file