//Create the remove red button
private void NoRed(object sender, System.EventArgs e)
{
TextView tv_saved = FindViewById <TextView>(Resource.Id.respondText);
ImageView imageView = FindViewById <ImageView>(Resource.Id.takenPictureImageView);
int height = Resources.DisplayMetrics.HeightPixels;
int width = imageView.Height;
Android.Graphics.Bitmap bitmap = _file.Path.LoadAndResizeBitmap(width, height);
Android.Graphics.Bitmap copyBitmap = bitmap.Copy(Android.Graphics.Bitmap.Config.Argb8888, true);
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
//00000000 00000000 00000000 00000000
//long mask = (long)0xFF00FFFF;
//p = p & (int)mask;
Android.Graphics.Color c = new Android.Graphics.Color(p);
c.R = 0;
copyBitmap.SetPixel(i, j, c);
}
}
if (bitmap != null)
{
imageView.SetImageBitmap(copyBitmap);
imageView.Visibility = Android.Views.ViewStates.Visible;
}
System.GC.Collect();
tv_saved.SetTextKeepState("Red Removed!");
}
public override void SetPixel(int x, int y, int a, int r, int g, int b)
{
Color color = new Color(r, g, b, a);
platformBitmap.SetPixel(x, y, color);
}
// Called automatically whenever an activity finishes
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
SetContentView(Resource.Layout.PicManip);
bool reverted = true;
Button remred = FindViewById <Button>(Resource.Id.RemRed);
Button remgreen = FindViewById <Button>(Resource.Id.RemGreen);
Button remblue = FindViewById <Button>(Resource.Id.RemBlue);
Button negred = FindViewById <Button>(Resource.Id.NegRed);
Button neggreen = FindViewById <Button>(Resource.Id.NegGreen);
Button negblue = FindViewById <Button>(Resource.Id.NegBlue);
Button greyscale = FindViewById <Button>(Resource.Id.Greyscale);
Button high_cont = FindViewById <Button>(Resource.Id.HighContrast);
Button add_noise = FindViewById <Button>(Resource.Id.AddNoise);
Button revert = FindViewById <Button>(Resource.Id.Revert);
Button save = FindViewById <Button>(Resource.Id.Save);
//test to make sure the picture was found
if ((resultCode == Result.Ok) && (data != null))
{
//Make image available in the gallery
//Test to see if we came from the camera or gallery
//If we came from galley no need to make pic available
if (requestCode == 0)
{
Intent mediaScanIntent = new Intent(Intent.ActionMediaScannerScanFile);
var contentUri = Android.Net.Uri.FromFile(_file);
mediaScanIntent.SetData(contentUri);
SendBroadcast(mediaScanIntent);
}
}
// Display in ImageView. We will resize the bitmap to fit the display.
// Loading the full sized image will consume too much memory
// and cause the application to crash.
ImageView imageView = FindViewById <ImageView>(Resource.Id.takenPictureImageView);
int height = Resources.DisplayMetrics.HeightPixels;
int width = imageView.Height;
bitmap = (Android.Graphics.Bitmap)data.Extras.Get("data");
bitmap = Android.Graphics.Bitmap.CreateScaledBitmap(bitmap, 1024, 768, true);
//check to make sure the bitmap has data we can manipulate
if (bitmap != null)
{
copyBitmap = bitmap.Copy(Android.Graphics.Bitmap.Config.Argb8888, true);
imageView.SetImageBitmap(copyBitmap);
}
else
{
//If bitmap is null takes the user back to the original screen
StartMainLayout();
}
//Removes the red in the picture by setting the red pixel to 0
remred.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
c.R = 0;
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Removes the green in the picture by setting the green pixel to 0
remgreen.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
c.G = 0;
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Removes the blue in the picture by setting the blue pixel to 0
remblue.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
c.B = 0;
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Negates the red in the picture by subtracting 255 from the current red pixels value
negred.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int r1 = c.R;
r1 = 255 - r1;
c.R = Convert.ToByte(r1);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Negates the green in the picture by subtracting 255 from the current green pixels value
neggreen.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int g1 = c.G;
g1 = 255 - g1;
c.G = Convert.ToByte(g1);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Negates the blue in the picture by subtracting 255 from the current blue pixels value
negblue.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int b1 = c.B;
b1 = 255 - b1;
c.B = Convert.ToByte(b1);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Converts the picture to greyscale by averaging all the pixels values
//Then setting the each pixel to the average
greyscale.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int average = 0;
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int r_temp = c.R;
int g_temp = c.G;
int b_temp = c.B;
average = (r_temp + g_temp + b_temp) / 3;
c.R = Convert.ToByte(average);
c.G = Convert.ToByte(average);
c.B = Convert.ToByte(average);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Converts the picture to high contrast
//If the pixel > 127.5, then set to 255, else set to 0
high_cont.Click += delegate
{
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int check_num = 255 / 2;
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int r_temp = c.R;
int g_temp = c.G;
int b_temp = c.B;
if (r_temp > check_num)
{
r_temp = 255;
}
else
{
r_temp = 0;
}
if (g_temp > check_num)
{
g_temp = 255;
}
else
{
g_temp = 0;
}
if (b_temp > check_num)
{
b_temp = 255;
}
else
{
b_temp = 0;
}
c.R = Convert.ToByte(r_temp);
c.G = Convert.ToByte(g_temp);
c.B = Convert.ToByte(b_temp);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Adds random noise to the picture
//Get a random value from -10 - 10, and add it to the pixels value
//making sure the pixel value doesn't go over 255 or under 0.
add_noise.Click += delegate
{
Random rnd = new Random();
for (int i = 0; i < copyBitmap.Width; i++)
{
for (int j = 0; j < copyBitmap.Height; j++)
{
int p = copyBitmap.GetPixel(i, j);
Android.Graphics.Color c = new Android.Graphics.Color(p);
int rand_val = rnd.Next(-10, 11);
int r_temp = c.R;
int g_temp = c.G;
int b_temp = c.B;
r_temp += rand_val;
g_temp += rand_val;
b_temp += rand_val;
if (r_temp > 255)
{
r_temp = 255;
}
else if (r_temp < 0)
{
r_temp = 0;
}
if (g_temp > 255)
{
g_temp = 255;
}
else if (g_temp < 0)
{
g_temp = 0;
}
if (b_temp > 255)
{
b_temp = 255;
}
else if (b_temp < 0)
{
b_temp = 0;
}
c.R = Convert.ToByte(r_temp);
c.G = Convert.ToByte(g_temp);
c.B = Convert.ToByte(b_temp);
copyBitmap.SetPixel(i, j, c);
}
}
imageView.SetImageBitmap(copyBitmap);
reverted = false;
};
//Button used to revert the image effects back to the orginal picture
revert.Click += delegate
{
if (bitmap != null && !reverted)
{
copyBitmap = bitmap.Copy(Android.Graphics.Bitmap.Config.Argb8888, true);
imageView.SetImageBitmap(copyBitmap);
reverted = true;
}
else if (reverted)
{
Toast.MakeText(this, "The picture is the original.", ToastLength.Short).Show();
}
};
//Saves the image to the users gallery
save.Click += delegate
{
var sdCardPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath;
var filePath = System.IO.Path.Combine(sdCardPath, "ImageManip_{0}.png");
var stream = new FileStream(filePath, FileMode.Create);
copyBitmap.Compress(Bitmap.CompressFormat.Png, 100, stream);
stream.Close();
Toast.MakeText(this, "The picture was saved to gallery.", ToastLength.Short).Show();
StartMainLayout();
};
// Dispose of the Java side bitmap.
System.GC.Collect();
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Start);
lista = LDbConnection.GetActualUserExpo();
var toolbar = FindViewById <Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
SetSupportActionBar(toolbar);
SupportActionBar.SetDisplayHomeAsUpEnabled(true);
SupportActionBar.SetDisplayShowTitleEnabled(false);
SupportActionBar.SetHomeButtonEnabled(true);
SupportActionBar.SetHomeAsUpIndicator(Resource.Drawable.ic_menu);
drawerLayout = FindViewById <Android.Support.V4.Widget.DrawerLayout>(Resource.Id.drawer_layout);
navigationView = FindViewById <Android.Support.Design.Widget.NavigationView>(Resource.Id.nav_view);
navigationView.NavigationItemSelected += HomeNavigationView_NavigationItemSelected;
var qrcode = FindViewById <Android.Widget.ImageView>(Resource.Id.Start_qrcode);
var writer = new ZXing.QrCode.QRCodeWriter();
String s = "";
if (LDbConnection.getUserType() == "Uczestnik")
{
s = "Uczestnik:" + LDbConnection.GetUser().Email;
}
else if (LDbConnection.getUserType() == "Wystawca")
{
s = "Wystawca:" + LDbConnection.GetCompany().Email;
}
ZXing.Common.BitMatrix bm = writer.encode(s, ZXing.BarcodeFormat.QR_CODE, 500, 500);
Android.Graphics.Bitmap ImageBitmap = Android.Graphics.Bitmap.CreateBitmap(500, 500, Config.Argb8888);
for (int i = 0; i < 500; i++)
{ //width
for (int j = 0; j < 500; j++)
{ //height
ImageBitmap.SetPixel(i, j, bm[i, j] ? Color.Black : Color.White);
}
}
if (ImageBitmap != null)
{
qrcode.SetImageBitmap(ImageBitmap);
}
var expo_list = FindViewById <Android.Widget.Spinner>(Resource.Id.Start_targi);
expo_list.ItemSelected += new System.EventHandler <Android.Widget.AdapterView.ItemSelectedEventArgs>(spinner_ItemSelected);
var adapter = new MyExpoSingleListViewAdapter(lista, this);
expo_list.Adapter = adapter;
var btn1 = (Button)FindViewById(Resource.Id.Start_join);
btn1.Visibility = Android.Views.ViewStates.Invisible;
btn1.Click += delegate
{
var NxtAct = new Android.Content.Intent(this, typeof(UserActivity));
StartActivity(NxtAct);
};
var button = FindViewById <Android.Widget.Button>(Resource.Id.Start_scan);
button.Click += async delegate
{
ZXing.Mobile.MobileBarcodeScanner scanner;
ZXing.Mobile.MobileBarcodeScanner.Initialize(Application);
scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.BottomText = "Poczekaj, aż kod kreskowy będzie automatycznie zeskanowany!";
//Start scanning
var result = await scanner.Scan();
scanner.Cancel();
if (result == null)
{
scanner.Cancel();
}
else
{
scanner.Cancel();
string[] scan = result.Text.Split(':');
if (scan[0] == "Wystawca")
{
var NxtAct = new Android.Content.Intent(this, typeof(CompanyActivity));
NxtAct.PutExtra("Email", scan[1]);
NxtAct.PutExtra("expo_id", lista[select].Id);
NxtAct.PutExtra("Search", result.Text);
NxtAct.PutExtra("Show", true);
StartActivity(NxtAct);
}
else if (scan[0].Contains("Uczestnik"))
{
System.Console.WriteLine("Uczestnik");
var NxtAct = new Android.Content.Intent(this, typeof(UserActivity));
NxtAct.PutExtra("Email", scan[1]);
NxtAct.PutExtra("expo_id", lista[select].Id);
NxtAct.PutExtra("Search", result.Text);
NxtAct.PutExtra("Show", true);
StartActivity(NxtAct);
}
}
};
if (lista == null)
{
button.Visibility = Android.Views.ViewStates.Invisible;
btn1.Visibility = Android.Views.ViewStates.Visible;
}
}
public void SetPixel(int x, int y, Color color)
{
Android.Graphics.Color c = new Android.Graphics.Color(color.R, color.G, color.B);
ABitmap.SetPixel(x, y, c);
}