/* * Copyright (C) 2014, 2016 Valerio Bozzolan & James Dearing (TheOpenSourceNinja) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package anupam.acrylic; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.Calendar; import android.annotation.SuppressLint; import android.app.ActionBar; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.ActivityInfo; import android.graphics.Bitmap; import android.graphics.Bitmap.CompressFormat; import android.graphics.BitmapShader; import android.graphics.BlurMaskFilter; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.EmbossMaskFilter; import android.graphics.MaskFilter; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Point; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.PorterDuffColorFilter; import android.graphics.Shader; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.provider.MediaStore; import android.renderscript.Allocation; import android.renderscript.Element; import android.renderscript.RenderScript; import android.renderscript.ScriptIntrinsicBlur; import android.support.v7.widget.Toolbar; import android.util.Log; import android.view.Display; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; @SuppressLint("ClickableViewAccessibility") public class EasyPaint extends GraphicsActivity implements ColorPickerDialog.OnColorChangedListener { public static final String LONGITUDE = "LONGITUDE"; public static final String LATITUDE = "LATITUDE"; public static final String ALTITUDE = "ALTITUDE"; public static int DEFAULT_BRUSH_SIZE = 10; private static int MAX_POINTERS = 10; private static final float TOUCH_TOLERANCE = 4; private Paint mPaint; private MaskFilter mEmboss; private MaskFilter mBlur; private boolean doubleBackToExitPressedOnce = false; private static final int CHOOSE_IMAGE = 0; private MyView contentView; private boolean waitingForBackgroundColor = false; //If true and colorChanged() is called, fill the background, else mPaint.setColor() private boolean extractingColor = false; //If this is true, the next touch event should extract a color rather than drawing a line. private String outputFilePath; private double longitude; private double latitude; private double altitude; private boolean wasMadeDirty = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // it removes the title from the actionbar(more space for icons?) // this.getActionBar().setDisplayShowTitleEnabled(false); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); contentView = new MyView(this); setContentView(contentView); ActionBar ab = getActionBar(); ab.setTitle("AcrylicPaint"); // Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); // setSupportActionBar(toolbar); // getSupportActionBar().setDisplayHomeAsUpEnabled(true); // XXX ADDED FOR GEOPAPARAZZI Bundle extras = getIntent().getExtras(); if (extras != null) { outputFilePath = extras.getString(MediaStore.EXTRA_OUTPUT); longitude = extras.getDouble(LONGITUDE); latitude = extras.getDouble(LATITUDE); altitude = extras.getDouble(ALTITUDE); } // XXX END ADDED FOR GEOPAPARAZZI mPaint = new Paint(); mPaint.setAntiAlias(true); mPaint.setDither(true); mPaint.setColor(Color.GREEN); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeJoin(Paint.Join.ROUND); mPaint.setStrokeCap(Paint.Cap.ROUND); mPaint.setStrokeWidth(DEFAULT_BRUSH_SIZE); // Where did these magic numbers come from? What do they mean? Can I change them? ~TheOpenSourceNinja // Absolutely random numbers in order to see the emboss. asd! ~Valerio mEmboss = new EmbossMaskFilter(new float[]{1, 1, 1}, 0.4f, 6, 3.5f); mBlur = new BlurMaskFilter(5, BlurMaskFilter.Blur.NORMAL); // if (isFirstTime()) { // AlertDialog.Builder alert = new AlertDialog.Builder(this); // // alert.setTitle(R.string.app_name); // alert.setMessage(R.string.app_description); // alert.setNegativeButton(R.string.continue_fuck, // new DialogInterface.OnClickListener() { // public void onClick(DialogInterface dialog, // int whichButton) { // Toast.makeText(getApplicationContext(), // R.string.here_is_your_canvas, // Toast.LENGTH_SHORT).show(); // } // }); // // alert.show(); // } else { // Toast.makeText(getApplicationContext(), // R.string.here_is_your_canvas, Toast.LENGTH_SHORT).show(); // } loadFromIntents(); } @Override public void finish() { // XXX ADDED FOR GEOPAPARAZZI if (outputFilePath != null && wasMadeDirty) { View v = findViewById(R.id.CanvasId); v.setDrawingCacheEnabled(true); Bitmap cachedBitmap = v.getDrawingCache(); Bitmap copyBitmap = cachedBitmap.copy(Bitmap.Config.RGB_565, true); v.destroyDrawingCache(); FileOutputStream output = null; File file = null; try { file = new File(outputFilePath); output = new FileOutputStream(file); copyBitmap.compress(CompressFormat.PNG, 100, output); } catch (FileNotFoundException e) { file = null; e.printStackTrace(); } finally { if (output != null) { try { output.close(); } catch (IOException e) { e.printStackTrace(); } } } Intent intent = new Intent((String) null); intent.putExtra("PREFS_KEY_PATH", outputFilePath); intent.putExtra(LATITUDE, latitude); intent.putExtra(LONGITUDE, longitude); intent.putExtra(ALTITUDE, altitude); setResult(Activity.RESULT_OK, intent); } else { Intent intent = new Intent((String) null); setResult(Activity.RESULT_CANCELED, intent); } // View v = findViewById(R.id.CanvasId); // v.setDrawingCacheEnabled(true); // Bitmap cachedBitmap = v.getDrawingCache(); // Bitmap copyBitmap = cachedBitmap.copy(Bitmap.Config.RGB_565, true); // v.destroyDrawingCache(); // ByteArrayOutputStream _bs = new ByteArrayOutputStream(); // copyBitmap.compress(Bitmap.CompressFormat.PNG, 50, _bs); // // Intent intent = new Intent((String) null); // intent.putExtra("ACRYLIC_PAINT_IMAGE", _bs.toByteArray()); // setResult(Activity.RESULT_OK, intent); super.finish(); } @Override public void onBackPressed() { if (doubleBackToExitPressedOnce) { super.onBackPressed(); return; } this.doubleBackToExitPressedOnce = true; Toast.makeText(this, R.string.press_back_again, Toast.LENGTH_SHORT) .show(); new Handler().postDelayed(new Runnable() { @Override public void run() { doubleBackToExitPressedOnce = false; } }, 3000); } public void colorChanged(int color) { if (waitingForBackgroundColor) { waitingForBackgroundColor = false; contentView.mBitmapBackground.eraseColor(color); //int[] colors = new int[ 1 ]; //colors[ 0 ] = color; //contentView.mBitmapBackground = Bitmap.createBitmap( colors, contentView.mBitmapBackground.getWidth(), contentView.mBitmapBackground.getHeight(), contentView.mBitmapBackground.getConfig() ); } else { mPaint.setColor(color); } } public class MyView extends View { public Bitmap mBitmap; private Bitmap mBitmapBackground; private Canvas mCanvas; private Paint mBitmapPaint; private MultiLinePathManager multiLinePathManager; private class LinePath extends Path { private Integer idPointer; private float lastX; private float lastY; LinePath() { this.idPointer = null; } public float getLastX() { return lastX; } public float getLastY() { return lastY; } public void touchStart(float x, float y) { this.reset(); this.moveTo(x, y); this.lastX = x; this.lastY = y; } public void touchMove(float x, float y) { float dx = Math.abs(x - lastX); float dy = Math.abs(y - lastY); if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) { this.quadTo(lastX, lastY, (x + lastX) / 2, (y + lastY) / 2); lastX = x; lastY = y; } } public boolean isDisassociatedFromPointer() { return idPointer == null; } public boolean isAssociatedToPointer(int idPointer) { return this.idPointer != null && (int) this.idPointer == idPointer; } public void disassociateFromPointer() { idPointer = null; } public void associateToPointer(int idPointer) { this.idPointer = idPointer; } } private class MultiLinePathManager { public LinePath[] superMultiPaths; MultiLinePathManager(int maxPointers) { superMultiPaths = new LinePath[maxPointers]; for (int i = 0; i < maxPointers; i++) { superMultiPaths[i] = new LinePath(); } } public LinePath findLinePathFromPointer(int idPointer) { for (LinePath superMultiPath : superMultiPaths) { if (superMultiPath.isAssociatedToPointer(idPointer)) { return superMultiPath; } } return null; } public LinePath addLinePathWithPointer(int idPointer) { for (LinePath superMultiPath : superMultiPaths) { if (superMultiPath.isDisassociatedFromPointer()) { superMultiPath.associateToPointer(idPointer); return superMultiPath; } } return null; } } public MyView(Context c) { super(c); setId(R.id.CanvasId); Display display = getWindowManager().getDefaultDisplay(); Point size = new Point(); display.getSize(size); mBitmapBackground = Bitmap.createBitmap(size.x, size.y, Bitmap.Config.ARGB_8888); mBitmap = Bitmap.createBitmap(size.x, size.y, Bitmap.Config.ARGB_8888); mCanvas = new Canvas(mBitmap); mBitmapPaint = new Paint(Paint.DITHER_FLAG); multiLinePathManager = new MultiLinePathManager(MAX_POINTERS); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); } @Override protected void onDraw(Canvas canvas) { canvas.drawColor(0xFFFFFFFF); canvas.drawBitmap(mBitmapBackground, 0, 0, new Paint()); canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint); for (int i = 0; i < multiLinePathManager.superMultiPaths.length; i++) { canvas.drawPath(multiLinePathManager.superMultiPaths[i], mPaint); } } @Override public boolean onTouchEvent(MotionEvent event) { LinePath linePath; int index; int id; int eventMasked = event.getActionMasked(); switch (eventMasked) { case MotionEvent.ACTION_DOWN: case MotionEvent.ACTION_POINTER_DOWN: { index = event.getActionIndex(); id = event.getPointerId(index); if (extractingColor) { //If the user chose the 'extract color' menu option, the touch event indicates where they want to extract the color from. extractingColor = false; View v = findViewById(R.id.CanvasId); v.setDrawingCacheEnabled(true); Bitmap cachedBitmap = v.getDrawingCache(); int newColor = cachedBitmap.getPixel(Math.round(event.getX(index)), Math.round(event.getY(index))); v.destroyDrawingCache(); colorChanged(newColor); Toast.makeText(getApplicationContext(), R.string.color_extracted, Toast.LENGTH_SHORT).show(); } else { linePath = multiLinePathManager.addLinePathWithPointer(id); if (linePath != null) { linePath.touchStart(event.getX(index), event.getY(index)); } else { Log.e("anupam", "Too many fingers!"); } } break; } case MotionEvent.ACTION_MOVE: for (int i = 0; i < event.getPointerCount(); i++) { id = event.getPointerId(i); index = event.findPointerIndex(id); linePath = multiLinePathManager.findLinePathFromPointer(id); if (linePath != null) { linePath.touchMove(event.getX(index), event.getY(index)); } wasMadeDirty = true; } break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_POINTER_UP: case MotionEvent.ACTION_CANCEL: index = event.getActionIndex(); id = event.getPointerId(index); linePath = multiLinePathManager.findLinePathFromPointer(id); if (linePath != null) { linePath.lineTo(linePath.getLastX(), linePath.getLastY()); // Commit the path to our offscreen mCanvas.drawPath(linePath, mPaint); // Kill this so we don't double draw linePath.reset(); // Allow this LinePath to be associated to another idPointer linePath.disassociateFromPointer(); } wasMadeDirty = true; break; } invalidate(); return true; } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { mPaint.setXfermode(null); mPaint.setAlpha(0xFF); int i1 = item.getItemId(); if (i1 == R.id.extract_color_menu) { Toast.makeText(getApplicationContext(), R.string.tap_to_extract_color, Toast.LENGTH_LONG).show(); extractingColor = true; return true; } else if (i1 == R.id.normal_brush_menu) { mPaint.setShader(null); mPaint.setMaskFilter(null); return true; } else if (i1 == R.id.color_menu) { new ColorPickerDialog(this, this, mPaint.getColor()).show(); return true; } else if (i1 == R.id.emboss_menu) { mPaint.setShader(null); mPaint.setMaskFilter(mEmboss); return true; } else if (i1 == R.id.smudge_menu) { if (Build.VERSION.SDK_INT >= 17) { /* Basically what we're doing here is copying the entire foreground bitmap, * blurring it, then telling mPaint to use that instead of a solid color. */ RenderScript rs = RenderScript.create(getApplicationContext()); ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.RGBA_8888(rs)); script.setRadius(20f); //The radius must be between 0 and 25. Smaller radius means less blur. I just picked 20 randomly. ~TheOpenSourceNinja //copy the foreground: (n API level 18+, this will be really fast because it uses a shared memory model, thus not really copying everything) Allocation input = Allocation.createFromBitmap(rs, contentView.mBitmap); script.setInput(input); //allocate memory for the output: Allocation output = Allocation.createTyped(rs, input.getType()); //Blur the image: script.forEach(output); //Store the blurred image as a Bitmap object: Bitmap blurred = Bitmap.createBitmap(contentView.mBitmap); output.copyTo(blurred); //Tell mPaint to use the blurred image: Shader shader = new BitmapShader(blurred, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP); mPaint.setShader(shader); return true; } else { Toast.makeText(this.getApplicationContext(), R.string.ability_disabled_need_newer_api_level, Toast.LENGTH_LONG).show(); return true; } } else if (i1 == R.id.blur_menu) { mPaint.setShader(null); mPaint.setMaskFilter(mBlur); return true; } else if (i1 == R.id.size_menu) { LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); View layout = inflater.inflate(R.layout.brush, (ViewGroup) findViewById(R.id.root)); AlertDialog.Builder builder = new AlertDialog.Builder(this) .setView(layout); builder.setTitle(R.string.choose_width); final AlertDialog alertDialog = builder.create(); alertDialog.show(); SeekBar sb = (SeekBar) layout.findViewById(R.id.brushSizeSeekBar); sb.setProgress(getStrokeSize()); final TextView txt = (TextView) layout .findViewById(R.id.sizeValueTextView); txt.setText(String.format( getResources().getString(R.string.your_selected_size_is), getStrokeSize() + 1)); sb.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, final int progress, boolean fromUser) { // Do something here with new value mPaint.setStrokeWidth(progress); txt.setText(String.format( getResources().getString( R.string.your_selected_size_is), progress + 1)); } @Override public void onStartTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } @Override public void onStopTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } }); return true; } else if (i1 == R.id.erase_menu) { LayoutInflater inflater_e = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); View layout_e = inflater_e.inflate(R.layout.brush, (ViewGroup) findViewById(R.id.root)); AlertDialog.Builder builder_e = new AlertDialog.Builder(this) .setView(layout_e); builder_e.setTitle(R.string.choose_width); final AlertDialog alertDialog_e = builder_e.create(); alertDialog_e.show(); SeekBar sb_e = (SeekBar) layout_e.findViewById(R.id.brushSizeSeekBar); sb_e.setProgress(getStrokeSize()); final TextView txt_e = (TextView) layout_e .findViewById(R.id.sizeValueTextView); txt_e.setText(String.format( getResources().getString(R.string.your_selected_size_is), getStrokeSize() + 1)); sb_e.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, final int progress, boolean fromUser) { // Do something here with new value mPaint.setStrokeWidth(progress); txt_e.setText(String.format( getResources().getString( R.string.your_selected_size_is), progress + 1)); } public void onStartTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } public void onStopTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } }); mPaint.setShader(null); mPaint.setXfermode(new PorterDuffXfermode(Mode.CLEAR)); return true; } else if (i1 == R.id.clear_all_menu) { contentView.mBitmap.eraseColor(Color.TRANSPARENT); return true; } else if (i1 == R.id.fill_background_with_color) { waitingForBackgroundColor = true; new ColorPickerDialog(this, this, contentView.mBitmapBackground.getPixel(0, 0)).show(); return true; } return super.onOptionsItemSelected(item); } /** * This takes the screenshot of the whole screen. Is this a good thing? */ private File takeScreenshot(boolean showToast) { View v = findViewById(R.id.CanvasId); v.setDrawingCacheEnabled(true); Bitmap cachedBitmap = v.getDrawingCache(); Bitmap copyBitmap = cachedBitmap.copy(Bitmap.Config.RGB_565, true); v.destroyDrawingCache(); FileOutputStream output = null; File file = null; try { File path = Places.getScreenshotFolder(); Calendar cal = Calendar.getInstance(); file = new File(path, cal.get(Calendar.YEAR) + "_" + (1 + cal.get(Calendar.MONTH)) + "_" + cal.get(Calendar.DAY_OF_MONTH) + "_" + cal.get(Calendar.HOUR_OF_DAY) + "_" + cal.get(Calendar.MINUTE) + "_" + cal.get(Calendar.SECOND) + ".png"); output = new FileOutputStream(file); copyBitmap.compress(CompressFormat.PNG, 100, output); } catch (FileNotFoundException e) { file = null; e.printStackTrace(); } finally { if (output != null) { try { output.close(); } catch (IOException e) { e.printStackTrace(); } } } if (file != null) { if (showToast) Toast.makeText( getApplicationContext(), String.format( getResources().getString( R.string.saved_your_location_to), file.getAbsolutePath()), Toast.LENGTH_LONG) .show(); // sending a broadcast to the media scanner so it will scan the new // screenshot. Intent requestScan = new Intent( Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); requestScan.setData(Uri.fromFile(file)); sendBroadcast(requestScan); return file; } else { return null; } } private boolean isFirstTime() { SharedPreferences preferences = getPreferences(MODE_PRIVATE); boolean ranBefore = preferences.getBoolean("RanBefore", false); if (!ranBefore) { // first time SharedPreferences.Editor editor = preferences.edit(); editor.putBoolean("RanBefore", true); editor.commit(); } return !ranBefore; } private int getStrokeSize() { return (int) mPaint.getStrokeWidth(); } public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode != RESULT_CANCELED) { //"The resultCode will be RESULT_CANCELED if the activity explicitly returned that, didn't return any result, or crashed during its operation." (quote from https://developer.android.com/reference/android/app/Activity.html#onActivityResult(int,%20int,%20android.content.Intent) ) switch (requestCode) { case CHOOSE_IMAGE: { setBackgroundUri(data.getData()); } } } } public void setBackgroundUri(Uri uri) { if (uri == null) { return; } try { //I don't like loading both full-sized and reduced-size copies of the image (the larger copy can use a lot of memory), but I couldn't find any other way to do this. Bitmap fullsize = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri); Bitmap resized = Bitmap.createScaledBitmap(fullsize, contentView.mBitmap.getWidth(), contentView.mBitmap.getHeight(), true); contentView.mBitmapBackground = resized; //contentView.mCanvas = new Canvas( contentView.mBitmapBackground ); } catch (IOException exception) { //TODO: How should we handle this exception? } } public void loadFromIntents() { Intent intent = getIntent(); String action = intent.getAction(); String type = intent.getType(); if (Intent.ACTION_SEND.equals(action) && type != null) { if (type.startsWith("image/")) { setBackgroundUri((Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM)); } } } }