private async void InvertButton_Click(object sender, EventArgs e)
{
CalculateNewColor calculateNewColor = new CalculateNewColor((previousColor) => {
int newRed = Math.Abs(previousColor.R - 255);
int newGreen = Math.Abs(previousColor.G - 255);
int newBlue = Math.Abs(previousColor.B - 255);
return(Color.FromArgb(newRed, newGreen, newBlue));
});
await TransformImage(calculateNewColor);
}
private async void BrightnessBar_MouseUp(object sender, MouseEventArgs e)
{
if (brightnessBar.Value != brightnessBarValue)
{
brightnessBarValue = brightnessBar.Value;
int amount = Convert.ToInt32(2 * (50 - brightnessBar.Value) * 0.01 * 255);
CalculateNewColor calculateNewColor = new CalculateNewColor((previousColor) => {
int newRed = previousColor.R - amount;
int newGreen = previousColor.G - amount;
int newBlue = previousColor.B - amount;
if (newRed < 0)
{
newRed = 0;
}
else if (newRed > 255)
{
newRed = 255;
}
if (newGreen < 0)
{
newGreen = 0;
}
else if (newGreen > 255)
{
newGreen = 255;
}
if (newBlue < 0)
{
newBlue = 0;
}
else if (newBlue > 255)
{
newBlue = 255;
}
return(Color.FromArgb(newRed, newGreen, newBlue));
});
await TransformImage(calculateNewColor);
}
}
private async void ColorButton_Click(object sender, EventArgs e)
{
DisableComponents();
ColorDialog colorDialog = new ColorDialog();
if (colorDialog.ShowDialog() == DialogResult.OK)
{
CalculateNewColor calculateNewColor = new CalculateNewColor((previousColor) => {
double averageColorPercentage = ((previousColor.R + previousColor.G + previousColor.B) / 3.0) / 255.0;
int newRed = (int)(colorDialog.Color.R * averageColorPercentage);
int newGreen = (int)(colorDialog.Color.G * averageColorPercentage);
int newBlue = (int)(colorDialog.Color.B * averageColorPercentage);
return(Color.FromArgb(newRed, newGreen, newBlue));
});
await TransformImage(calculateNewColor);
}
EnableComponents();
}
private async Task TransformImage(CalculateNewColor calculateNewColor)
{
Bitmap image = (Bitmap)pictureBox1.Image.Clone();
DisableComponents();
Transforming transformingWindow = new Transforming();
cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationTokenSource.Token;
transformingWindow.OnCancel += () => {
cancellationTokenSource.Cancel();
};
transformingWindow.Show();
transformingWindow.TopMost = true;
int offsetX = (this.Width - transformingWindow.Width) / 2;
int offsetY = (this.Height - transformingWindow.Height) / 2;
transformingWindow.Location = new Point(this.Location.X + offsetX, this.Location.Y + offsetY);
int amount = Convert.ToInt32(2 * (50 - brightnessBar.Value) * 0.01 * 255);
await Task.Run(() => {
int currentPercentage = 0;
int totalPixels = image.Width *image.Height;
for (int y = 0; y < image.Height && !cancellationToken.IsCancellationRequested; y++)
{
for (int x = 0; x < image.Width && !cancellationToken.IsCancellationRequested; x++)
{
Color color = image.GetPixel(x, y);
Color newColor = calculateNewColor(color);
image.SetPixel(x, y, newColor);
int pixelsChanged = y *image.Width + x;
int percentage = pixelsChanged * 100 / totalPixels;
if (currentPercentage < percentage)
{
currentPercentage = percentage;
transformingWindow.Invoke((Action) delegate() {
// Hacky way of keeping the progress bar updating at the correct speed
transformingWindow.ProgressPercentage = currentPercentage + 1;
transformingWindow.ProgressPercentage = currentPercentage;
});
}
}
}
if (!cancellationToken.IsCancellationRequested)
{
this.Invoke((Action) delegate() {
pictureBox1.Image = image;
});
}
});
transformingWindow.Close();
EnableComponents();
}
