private async void extractButton_Click(object sender, EventArgs e)
{
bmp = (Bitmap)imagePictureBox.Image;
var vector = ReadVector(pathVectorTextBox.Text);
await UpdateWorkOnProgessiveBar();
string extractedText = LsbProposedHelper.ExtractText(bmp, vector);
if (encryptCheckBox.Checked)
{
try
{
extractedText = Crypto.DecryptStringAES(extractedText, passwordTextBox.Text);
}
catch
{
MessageBox.Show("Wrong password", "Error");
return;
}
}
dataTextBox.Text = extractedText;
progressBar1.Value = 0;
}
private async void embedButton_Click(object sender, EventArgs e)
{
bmp = (Bitmap)imagePictureBox.Image;
string text = dataTextBox.Text;
if (text.Equals(""))
{
MessageBox.Show("The text you want to hide can't be empty", "Warning");
return;
}
if (encryptCheckBox.Checked)
{
if (passwordTextBox.Text.Length < 6)
{
MessageBox.Show("Please enter a password with at least 6 characters", "Warning");
return;
}
else
{
text = Crypto.EncryptStringAES(text, passwordTextBox.Text);
}
}
await UpdateWorkOnProgessiveBar();
bmp = LsbProposedHelper.EmbedText(text, bmp);
DialogResult dialogResult = MessageBox.Show("Do you want to save the image ?", "Embed Text Successfully!", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes)
{
SaveImageAfterEmbed();
}
else
{
notesLabel.Text = "Notes: don't forget to save your new image.";
notesLabel.ForeColor = Color.OrangeRed;
}
progressBar1.Value = 0;
}
private void clearAllToolStripMenuItem_Click(object sender, EventArgs e)
{
if (imagePictureBox.Image != null)
{
imagePictureBox.Image.Dispose();
imagePictureBox.Image = Image.FromFile(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, EMPTY_IMAGE));
}
passwordTextBox.Text = string.Empty;
dataTextBox.Text = string.Empty;
encryptCheckBox.Checked = false;
pathVectorTextBox.Text = string.Empty;
LsbProposedHelper.ResetVector();
notesLabel.Text = "Notes:";
notesLabel.ForeColor = Color.Black;
progressBar1.Value = 0;
}
private void SaveImageAfterEmbed()
{
SaveFileDialog save_dialog = new SaveFileDialog
{
Filter = "Png Image|*.png|Bitmap Image|*.bmp"
};
if (save_dialog.ShowDialog() == DialogResult.OK)
{
switch (save_dialog.FilterIndex)
{
case 0:
{
bmp.Save(save_dialog.FileName, ImageFormat.Png);
SaveVector(save_dialog);
}
break;
case 1:
{
bmp.Save(save_dialog.FileName, ImageFormat.Png);
SaveVector(save_dialog);
}
break;
case 2:
{
bmp.Save(save_dialog.FileName, ImageFormat.Bmp);
SaveVector(save_dialog);
}
break;
}
LsbProposedHelper.ResetVector();
notesLabel.Text = "Notes:";
notesLabel.ForeColor = Color.Black;
}
}
