/*
* 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));
}
}
}
}