Added image printing sample

Author: Douglas Nassif Roma Junior

Sample/libs/print_lib_0.13.jar

@@ -8,12 +8,14 @@
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 
     <application
+        android:name=".SampleApplication"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme.NoActionBar">
         <activity
             android:name=".MainActivity"
-            android:label="@string/app_name">
+            android:label="@string/app_name"
+            android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -24,8 +26,14 @@
         <activity
             android:name=".DeviceActivity"
             android:label="@string/activity_device"
-            android:windowSoftInputMode="adjustResize"/>
+            android:screenOrientation="portrait"
+            android:windowSoftInputMode="adjustResize" />
 
+        <activity
+            android:name=".BitmapActivity"
+            android:label="@string/activity_device"
+            android:screenOrientation="portrait"
+            android:windowSoftInputMode="adjustResize" />
 
     </application>
 

Sample/libs/zxing.jar

@@ -0,0 +1,110 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2015 Douglas Nassif Roma Junior
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.github.douglasjunior.bluetoothsample;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.github.douglasjunior.bluetoothclassiclibrary.BluetoothService;
+import com.wpx.util.WPXUtils;
+
+/**
+ * Created by douglas on 26/05/17.
+ */
+
+public class BitmapActivity extends AppCompatActivity implements View.OnClickListener {
+
+    private FloatingActionButton mFab;
+    private ImageView mImgOriginal;
+    private ImageView mImgBlackWhite;
+
+    private BluetoothService mService;
+
+    private Bitmap imageBitmap;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.activity_bitmap);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        mFab = (FloatingActionButton) findViewById(R.id.fab);
+        mFab.setOnClickListener(this);
+
+        mService = BluetoothService.getDefaultInstance();
+
+        mImgOriginal = (ImageView) findViewById(R.id.img_original);
+        mImgBlackWhite = (ImageView) findViewById(R.id.img_blackwhite);
+
+        new Thread() {
+            @Override
+            public void run() {
+                final Bitmap original = BitmapFactory.decodeResource(getResources(), R.drawable.bmw);
+
+                final Bitmap resized = Bitmap.createScaledBitmap(original, 255, 255, false);
+
+                final Bitmap editedBrightness = BitmapHelper.changeBitmapContrastBrightness(resized, 1, 50);
+
+                resized.recycle();
+
+                imageBitmap = editedBrightness;
+
+                final Bitmap editedGray = BitmapHelper.changeBitmapBlackWhite(editedBrightness);
+
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        mImgOriginal.setImageBitmap(original);
+                        mImgBlackWhite.setImageBitmap(editedGray);
+                    }
+                });
+            }
+        }.start();
+    }
+
+    @Override
+    public void onClick(View v) {
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    byte[] bytes = WPXUtils.decodeBitmap(imageBitmap);
+                    mService.write(bytes);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }.start();
+    }
+
+}

Sample/src/main/AndroidManifest.xml

@@ -0,0 +1,87 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2015 Douglas Nassif Roma Junior
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.github.douglasjunior.bluetoothsample;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Paint;
+
+/**
+ * Created by douglas on 30/05/17.
+ */
+public final class BitmapHelper {
+
+    private BitmapHelper(){}
+
+    /**
+     * From https://stackoverflow.com/a/17887577/2826279
+     *
+     * @param bmp        input bitmap
+     * @param contrast   0..10 1 is default
+     * @param brightness -255..255 0 is default
+     * @return new bitmap
+     */
+    public static Bitmap changeBitmapContrastBrightness(Bitmap bmp, float contrast, float brightness) {
+        ColorMatrix cm = new ColorMatrix(new float[]
+                {
+                        contrast, 0, 0, 0, brightness,
+                        0, contrast, 0, 0, brightness,
+                        0, 0, contrast, 0, brightness,
+                        0, 0, 0, 1, 0
+                });
+        Bitmap ret = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), bmp.getConfig());
+
+        Canvas canvas = new Canvas(ret);
+
+        Paint paint = new Paint();
+        paint.setColorFilter(new ColorMatrixColorFilter(cm));
+        canvas.drawBitmap(bmp, 0, 0, paint);
+
+        return ret;
+    }
+
+    public static Bitmap changeBitmapBlackWhite(Bitmap bmp) {
+        ColorMatrix cm = new ColorMatrix(new float[]
+                {
+                        1.5f, 1.5f, 1.5f, 0, 0,
+                        1.5f, 1.5f, 1.5f, 0, 0,
+                        1.5f, 1.5f, 1.5f, 0, 0,
+                        0, 0, 0, 1, 0
+                });
+        cm.setSaturation(0);
+        Bitmap ret = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), bmp.getConfig());
+
+        Canvas canvas = new Canvas(ret);
+
+        Paint paint = new Paint();
+        paint.setColorFilter(new ColorMatrixColorFilter(cm));
+        canvas.drawBitmap(bmp, 0, 0, paint);
+
+        return ret;
+    }
+
+}

Sample/src/main/java/com/github/douglasjunior/bluetoothsample/BitmapActivity.java

@@ -1,3 +1,27 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2015 Douglas Nassif Roma Junior
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 package com.github.douglasjunior.bluetoothsample;
 
 import android.os.Bundle;
@@ -13,7 +37,7 @@
 import com.github.douglasjunior.bluetoothclassiclibrary.BluetoothWriter;
 
 /**
- * Created by dougl on 10/04/2017.
+ * Created by douglas on 10/04/2017.
  */
 
 public class DeviceActivity extends AppCompatActivity implements BluetoothService.OnBluetoothEventCallback, View.OnClickListener {

Sample/src/main/java/com/github/douglasjunior/bluetoothsample/BitmapHelper.java

@@ -1,3 +1,27 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2015 Douglas Nassif Roma Junior
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 package com.github.douglasjunior.bluetoothsample;
 
 import android.bluetooth.BluetoothDevice;
@@ -17,7 +41,7 @@
 import java.util.Set;
 
 /**
- * Created by dougl on 10/04/2017.
+ * Created by douglas on 10/04/2017.
  */
 
 public class DeviceItemAdapter extends RecyclerView.Adapter<DeviceItemAdapter.ViewHolder> {